George Stephenson

Renowned as being the “Father of Railways”, The English civil engineer and mechanical engineer George Stephenson was born on 9 June 1781 in Wylam, Northumberland, near Newcastle upon Tyne. At 17, Stephenson became an engineman at Water Row Pit, Newburn. George studied at night school learning reading, writing and arithmetic. In 1801 he began work at Black Callerton colliery as a brakesman’, controlling the winding gear of the pit. In 1811 Stephenson fixed the pumping engine at High Pit, Killingworth. He did so with such success that he was soon promoted to enginewright for the neighbouring collieries at Killingworth, responsible for maintaining and repairing all of thec olliery engines. He soon became an expert in steam-driven machinery.

In 1815, Stephenson began to experiment with a safety lamp that would burn without causing an explosion in the mine. At the same time, Cornishman Sir Humphry Davy, the eminent scientist was also looking at the problem. Despite his lack of any scientific knowledge, Stephenson, by trial and error, devised a lamp in which the air entered via tiny holes. Stephenson demonstrated the lamp himself to two witnesses by taking it down Killingworth colliery and holding it directly in front of a fissure from which fire damp was issuing. This was a month before Davy presented his design to the Royal Society. The two designs differed in that, the Davy’s lamp was surrounded by a screen of gauze, whereas Stephenson’s lamp was contained in a glass cylinder. For his invention Davy was awarded £2,000, whilst Stephenson was accused of stealing the idea from Davy. A local committee of enquiry exonerated Stephenson, proved that he had been working separately and awarded him £1,000 but Davy and his supporters refused to accept this. They could not see how an uneducated man such as Stephenson could come up with the solution that he had. In 1833 a House of Commons committee found that Stephenson had equal claim to having invented the safety lamp. Davy went to his grave believing that Stephenson had stolen his idea. The Stephenson lamp was used exclusively in the North East, whereas the Davy lamp was used everywhere else. The experience with Davy gave Stephenson a life-long distrust of London-based, theoretical, scientific experts. There is a theory that it was Stephenson who indirectly gave the name of Geordies to the people of Tyneside. By this theory, the name of the Geordie lamp attached to the pit men themselves. By 1866 any native of Tyneside could be called a Geordie.

Cornishman Richard Trevithick is credited with the first realistic design of the steam locomotive in 1802. Later, he visited Tyneside and built an engine there for a mine-owner. Several local men were inspired by this, and designed engines of their own. Stephenson designed his first locomotive in 1814, a travelling engine designed for hauling coal on the Killingworth wagonway, and named Blücher after the Prussian general Gebhard Leberecht von Blücher. This locomotive could haul 30 tons of coal up a hill at 4 mph (6.4 km/h), and was the first successful flanged-wheel adhesion locomotive: its traction depended only on the contact between its flanged wheels and the rail. The new engines were too heavy to be run on wooden rails, and iron rails were in their infancy, with cast iron exhibiting excessive brittleness. Together with William Losh, Stephenson improved the design of cast ironrails to reduce breakage; these were briefly made by Losh, Wilson and Bell at their Walker ironworks. According toRolt, he also managed to solve the problem caused by the weight of the engine upon these primitive rails.He experimented with a ‘steam spring’ (to ‘cushion’ the weight using steam pressure), but soon followed the new practice of ‘distributing’ weight by utilising a number of wheels. For the Stockton and Darlington Railway, however, Stephenson would use only wrought iron rails.

Stephenson was hired to build an 8-mile (13-km) railway from Hetton colliery to Sunderland in 1820. The finished result used a combination of gravity on downward inclines and locomotives for level and upward stretches. It was the first railway using no animal power. In 1821, a parliamentary bill was passed to allow the building of the Stockton and Darlington Railway (S&DR). This 25-mile (40 km) railway was intended to connect various collieries situated near Bishop Auckland to the River Tees at Stockton, passing through Darlington on the way. The original plan was to use horses to draw coal carts on metal rails, but after company director Edward Pease met Stephenson he agreed to change the plans. Stephenson surveyed the line in 1821, assisted by his eighteen-year-old son Robert. That same year construction of the line began. A company was set up to manufacture locomotives for the railway, It was named Robert Stephenson and Company, and George’s son Robert was the managing director. In September 1825 the works at Forth Street, Newcastle completed the first locomotive for the new railway: originally named Active, it was soon renamed Locomotion. It was followed by “Hope”, “Diligence” and “Black Diamond”.

The Stockton and Darlington Railway opened on 27 September 1825. Driven by Stephenson, Locomotion hauled an 80-ton load of coal and flour nine miles (15 km) in two hours, reaching a speed of 24 miles per hour (39 km/h) on one stretch. The first purpose-built passenger car, dubbed Experiment,was attached, and carried dignitaries on the opening journey. It was the first time passenger traffic had been run on a steam locomotive railway. Although Richard Trevithick had demonstrated the idea back in 1808 using catch-me-who-can on a circular track which was situated near the present day Euston Station.The rails used for the new line were wrought-iron rails which could be produced in much longer lengths than the cast-iron ones and were much less liable to crack under the weight of heavy locomotives and The gauge that Stephenson chose for the line was 4 feet 81⁄2 inches (1,435 mm), and this subsequently came to be adopted as the standard gauge for railways, not only in Britain, but also throughout the world. Stephenson had also ascertained by experiments at Killingworth that half of the power of the locomotive was consumed by a gradient as little as 1 in 260 & came to the conclusion that railways should be kept as level as possible. He used this knowledge while working on the Bolton and Leigh Railway, and the Liverpool and Manchester Railway (L&MR), executing a series ofdifficult cuts, embankments and stone viaducts to smooth the route the railways took.

As the L&MR approached completion in 1829, its directors arranged for a competition to decide who would build its locomotives, and the Rainhill Trials were run in October 1829. Entries could weigh no more than six tons and had to travel along the track for a total distance of 60 miles (97 km). Stephenson’s entry was Rocket, and its performance in winning the contest made it famous. The opening ceremony of the L&MR, on 15 September 1830, was a considerable event, drawing luminaries from the government and industry, including the Prime Minister, the Duke of Wellington. The day started with a procession of eight trains setting out from Liverpool. The parade was led by “Northumbrian” and included “Phoenix”, “North Star” and “Rocket”. The railway was a resounding success and Stephenson became famous, and was offered the position of chief engineer for a wide variety of other railways.1830 also saw the grand opening of the skew bridge in Rainhill as part of the grand opening of the Liverpool and Manchester Railway. The bridge was the first to cross any railway at an angle. This required the structure to be constructed as two flat planes (overlapping in this case by 6′) between which the stonework forms a parallelogram shape when viewed from above. This has the effect of flattening the arch and the solution is to lay the bricks forming the arch at an angle to the abutments (the piers on which the arches rest). This technique, which results in a spiral effect in the arch masonry, provides extra strength in the arch to compensate for the angled abutments.

George Stephenson sadly died 12 August 1848. However he led the world in the development of railways and this acted as a stimulus for the industrial revolution, by facilitating the transport of raw materials and manufactured goods. He is also credited with building the first public railway line in the world to use steam locomotives. the Victorians considered him a great example of diligent application and thirst for improvement, with self-help advocate Samuel Smiles particularly praising his achievements. With his work on the Stockton and Darlington Railway and the Liverpool and Manchester Railway, paved the way for the railway engineers who were to follow, such as his son Robert, his assistant Joseph Locke who went on to carry out much work on his own account and Isambard Kingdom Brunel. These men were following in his footsteps. Stephenson also realised that the individual lines being built would eventually join together, and would need to have the same gauge. The standard gauge used throughout much of the world is His rail gauge of 4 feet 81⁄2 inches (1,435 mm), sometimes called “Stephenson gauge”, is the world’s standard gauge.

Sir William Stanier

Railway engineer Sir William Stanier was Born 27th May 1876 in Swindon. His father worked for the Great Western Railway (GWR) as William Dean’s Chief Clerk, and educated at Swindon High School and also, for a single year, at Wycliffe College. In 1891 he followed his father into a career with the GWR, initially as an office boy and then for five years as an apprentice in the workshops. Between 1897 and 1900 he worked in the Drawing Office as a draughtsman, before becoming Inspector of Materials in 1900. In 1904, George Jackson Churchward appointed him as Assistant to the Divisional Locomotive Superintendent in London. In 1912 he returned to Swindon to become the Assistant Works Manager and in 1920 was promoted to the post of Works Manager.In late 1931, he was “headhunted” by Sir Josiah Stamp, chairman of the London, Midland and Scottish Railway (LMS) to become the Chief Mechanical Engineer (CME) of that railway from 1 January 1932. He was charged with introducing modern and more powerful locomotive designs, using his knowledge gained at Swindon with the GWR. Stanier built many other very successful designs for the LMS, especially the “Black 5″ mixed traffic 4-6-0, and the 8F 2-8-0 freight locomotives.

His Coronation Scot set a new British record of 114 mph, beating the previous record set by a Gresley A4, but this was eclipsed by another Gresley A4 “Mallard”, which set a new record of 126 mph for Steam Engines which still stands to this day During WWII he worked as a consultant for the Ministry of Supply and retired in 1944. He was knighted on 9 February 1943 and elected a Fellow of the Royal Society on his retirement, the only railway engineer other than George Stephenson to receive that honour. He was also president of the Institution of Mechanical Engineers for 1944. William Stanier, with the backing of Sir Josiah Stamp, Chairman of the Company, reversed the small engine policy, which the LMS had inherited from the Midland Railway, with beneficial results. William Stanier, sadly passed away 27 September 1965. Happily many of Stanier’s locomotives can still be seen working on Heritage lines throughout the United Kingdom. Including LMS 6201 Princess Elizabeth, the Stanier “Black Five” 45110 (which was used for the Fifteen Guineas Special in 1968) and the Stanier Mogul No. 42968. Among Stanier’s Best designs are:

LMS Class 2P 0-4-4T (designed in the Midland Railway design office),
LMS Class 3MT 2-6-2T,
LMS Class 4MT 2-6-4T (3-cyl),
LMS Class 4MT 2-6-4T (2-cyl),
LMS Class 5MT 2-6-0 ”Mogul”,
LMS Class 5MT “Black Five” 4-6-0,
LMS Class 6P “Jubilee” 4-6-0,
LMS Class 8P “Princess Royal” 4-6-2,
LMS Class 8P “Princess Coronation” 4-6-2,
LMS Class 8F 2-8-0, LMS Turbomotive

Stanier Black Five 45110
Stanier5mt Mogul 42968
LMS 6201 Princess Elizabeth

Severn Valley Railway

The first section of the severn Valley Railway was reopened 23 May 1970 between Bridgnorth and Hampton Loade. The Severn Valley line Railway was originally built between 1858 and 1862, and linked Hartlebury, near Droitwich Spa, with Shrewsbury, a distance of 40 miles (64 km). Important stations on the line were Stourport-on-Severn, Bewdley and Arley within Worcestershire, and Highley, Hampton Loade, Bridgnorth, Coalport, Ironbridge and Broseley, Buildwas, Cressage and Berrington in Shropshire.

Although the railway was built by the original Severn Valley Railway Company, it was operated from opening on 1 February 1862 by the West Midland Railway which was absorbed into the Great Western Railway on 1 August 1863. In 1878 the GWR opened a link line between Bewdley and Kidderminster. This meant trains could run direct from the Black Country to areas of Shropshire. Most Kidderminster to Bewdley trains continued through the Wyre Forest line (dismantled in the 1960s and now forming part of National Cycle Route 45) to Tenbury Wells or Woofferton. At Buildwas Junction (now the site of Ironbridge Power Station near what is now Telford) Severn Valley trains connected with services from Wellington to Much Wenlock and Craven Arms.

Prior to preservation, the Severn Valley line was never financially successful. Freight traffic, mostly agricultural, and coal traffic from the collieries of Alveley and Highley were the principal sources of revenue. The line was strategically useful in the Second World War as an alternative diversionary route around the West Midlands. After nationalisation in 1948, passenger traffic started to dwindle. Whilst it is generally believed that the line was closed under the Beeching cuts of the 1960s, the Severn Valley Line was, already scheduled for closure prior to the publication of Beeching’s report ‘The Reshaping of British Railways’ on 27 March 1963. British Railways had announced in January 1962 that the Severn Valley line was under review, and the B.T.C. published closure proposal notices on 1 October 1962 in advance of a meeting of the West Midlands Transport Users Consultative Committee which took place at Bridgnorth Town Hall on 8 November 1962? Objections to the proposed closure were unsuccessful and the line was closed to through passenger services on 9 September 1963 and to through freight services on 30 November 1963. Following closure, the track north of Bridgnorth was dismantled. After 1963, coal traffic survived south of Alveley until 1969, while a sparse passenger service continued to link Bewdley with Kidderminster and Hartlebury, until this too ceased in January 1970. Freight traffic between the British Sugar Corporation’s Foley Park factory and Kidderminster continued until 1982. A very small section of the original Severn Valley line continued to carry coal traffic to Ironbridge Power Station until its closure in November 2015. For much of its working life the Severn Valley line was operated by the Great Western Railway and subsequently the Western Region of British Railways.

The Severn Valley Railway Society was formed in July 1965 by a group of members who wished to preserve a section of the line which had closed in 1963. To achieve this, the Severn Valley Railway Company was incorporated in May 1967. Even at that early date, the objective of the company was to ‘preserve, retain and restore the standard-gauge railway extending from Bridgnorth to Kidderminster via Bewdley’. The SVR initially acquired 5½ miles of the line between Bridgnorth and Alveley Colliery from BR at a cost of £25,000. In May 23 1970 a Light Railway Order was granted allowing services to begin between Bridgnorth and Hampton Loade. And the Severn Valley Railway began operating as a heritage railway. The end of coal trains from the colliery in 1973 then allowed SVR to acquire a further 8½ miles of the line as far as Foley Park, the purchase price of £74,000 being raised by the floatation of a public company initially under the chairmanship of Sir Gerald Nabarro and Services were extended to Bewdley in May 1974.

Following the end of freight traffic from BSC at Foley Park in 1982, the SVR purchased the final section of the line to Kidderminster at a cost of £75,000. The SVR also rented the former Comberton Hill goods yard at Kidderminster from BR, on which a new station would be built. This was achieved in time for services to Kidderminster to begin on 30 July 1984. Major developments on the SVR since 1984 have included the commissioning of a newly constructed signal box at Kidderminster in 1987, the opening of a new boiler shop at Bridgnorth in 1990, the opening of a new carriage shed at Kidderminster in 2003, the completion of the east wing and canopy of Kidderminster Station in 2006, and the opening of the Engine House Museum at Highley in 2008. 2010 marked the Severn Valley railway’s 40th anniversary since opening in 1970 and the 175th anniversary of the formation of the Great Western Railway. 2015 marked the 50th anniversary since the birth of the Severn Valley Railway Association on 6 July 1965. Special events were staged during both years to mark these anniversaries.

Talyllyn Railway

Trains began running on the 7.25 miles (11.67 k Talyllyn narrow gauge Talyllyn Railway (Welsh: Rheilffordd Talyllyn) in Wales for the first time since preservation on 14 May 1951, from Tywyn on the Mid-Wales coast to Nant Gwernol near the village of Abergonolwyn.

The line was originally opened in 1865 to carry slate from the quarries at Bryn Eglwys to Tywyn, and was the first narrow gauge railway in Britain authorised by Act of Parliament to carry passengers using steam haulage.Slate quarrying began in the hills above Tywyn in the 1830s, but although many small quarries and test levels were established, only one major quarry was developed in the region, at Bryn Eglwys, 7 miles (11 km) north east of the town. Underground working began in the early 1840s, and by 1847 the quarry was being worked by local landowner John Pughe. The finished slates were sent by packhorse to the wharf at Pennal, transferred to boats for a river trip to Aberdyfi (Aberdovey), and then finally loaded into seagoing vessels, a complex and expensive transportation arrangement which limited the quarry’s output. In 1861 the outbreak of the American Civil War cut off supplies of cotton to the mills of the north west of England and as a result a number of prosperous mill owners looked for new business opportunities to diversify their interests. One such owner was William McConnel of Lancashire who, in 1859, had purchased a house near Dolgellau, north of Tywyn. In January 1864, McConnel formed the Aberdovey Slate Company, which leased the land including Bryn Eglwys from the landowner, Lewis Morris of Machynlleth.

McConnel set about improving Bryn Eglwys to increase its output. He focused on providing rail transport for the isolated quarry, and in April 1864 he reached agreement with local landowners to purchase the land necessary to build a railway towards Tywyn and the port of Aberdyfi. Construction was well underway by July 1864. The standard gauge Aberystwyth and Welsh Coast Railway was expanding rapidly from its base at Machynlleth, however, and in 1863 had reached Tywyn, so McConnel decided to build his line from the quarry to Tywyn, as the nearest point where slate could be transferred to the standard gauge railway. This was despite the line’s initial isolation from the rest of the system because of difficulties in bridging the estuary of the River Dover( Afon Dyfi) to the south. An Act of Parliament allowing the company to operate passenger trains as a public railway was given Royal Assent on 5 July 1865, and the company appointed James Swinton Spooner as engineer for the construction. By September 1866 construction of the line climbing steadily from Tywyn to the quarry was progressing nicely

However it was discovered that the loading gauge of the line was too small. The internal width of the overbridges was only 9 ft 1 in (277 cm), but the railway’s passenger carriages were 5 ft 3.5 in (161.3 cm) wide, leaving less than 2 ft (61 cm) clearance on either side, less than the minimum required clearance of 2 ft 6 in (76 cm). To alleviate this problem, McConnel made an unusual alteration, and proposed that the doors on one side of each carriage be permanently barred and the track slewed off-centre beneath the bridges to allow adequate clearance at least on the side with doors, which would allow passengers to get out of the carriages if the train stopped underneath a bridge. Consequently all carriages on the Talyllyn have doors on one side only.

Improvements were also made to the railway’s first two steam locomotives, as locomotive No. 1 suffered from excessive “vertical motion” and No. 2 was said to suffer from “horizontal oscillation”. No. 1 was returned to its manufacturer where a set of trailing wheels was added to reduce the rear overhang, and the springs on No. 2 were adjusted and crank pins shortened to reduce oscillation. The first public passenger timetable was issued in December 1866, and the first purpose-built, steam-worked, narrow gauge public railway in Britain opened for service with two locomotives, one carriage and several goods vehicles in use. It was operated under a “one engine in steam” policy to ensure that two trains could not collide Initially the working locomotive was housed in a wooden shed at Ty Dwr on the mineral line above Abergynolwyn station, while the main engineering works at Pendre were constructed. The Pendre works opened on 17 February 1867 and from then on trains began working from Pendre instead of Abergynolwyn. Stations were provided at Pendre and Abergynolwyn. In 1867, the halt at Rhydyronen opened, followed by Brynglas and Dolgoch in 1873. Some time shortly after the opening of the railway a branch to Abergynolwyn village was provided. A steep incline dropped from the mineral line east of Abergynolwyn station to the village below, where a series of tram lines radiated. Unlike the horse-drawn Corris Railway The Talyllyn Railway used steam locomotives from the start, . The original two locomotives, although of entirely different design, were both purchased from Fletcher, Jennings & Co. of Whitehaven in Cumbria and both are still in service, 150 years on.

The Talyllyn’s unusual gauge is thought to have been adopted to match that of the Corris Railway, and the line’s two original steam locomotives were among the earliest locomotives built for such a narrow gauge. No. 1 Talyllyn is an 0-4-2ST (saddle tank) and No. 2 Dolgoch is an 0-4-0WT (well tank). The line carried slate from the quarry to the wharf at Tywyn and general goods along its length. Public passenger trains initially ran between Abergynolwyn, Dolgoch and Pendre stations only; quarrymen were carried from Abergynolwyn to the foot of the Alltwyllt incline in Nant Gwernol gorge. The line served the quarry industry and the local district. By 1880, Bryn Eglwys employed 300 workers and was producing 8,000 long tons (8,100 t) of finished slate per year, all shipped via the railway. Passenger traffic rose from 11,500 passengers carried in 1867 to over 23,000 (roughly equivalent to 40,000 passenger journeys) in 1877. From the 1880s onwards the “Grand Tour” was a popular option with tourists. This used charabancs to link the Talyllyn and Corris railways via Tal-y-llyn Lake and Cadair Idris, returning on Cambrian Railways trains.
The last two decades of the 19th century saw a decline in the demand for slate and many smaller quarries fell on hard times, including Bryn Eglwys, where by 1890 production had halved to 4,000 long tons (4,100 t) a year. In 1896, production at the Penrhyn Quarry in north Wales, one of the largest producers of slate, was stopped due to labour disputes, resulting in a temporary increase in demand at other quarries. However In 1910 McConnell’s lease expired and work began on dismantling Bryn Eglwys quarry’s equipment. The Bryn Eglwys quarry had been the primary employer in the Abergynolwyn district, so its closure caused significant distress. In 1910, local landowner Henry Haydn Jones was elected the Liberal MP for Merioneth. He understood the importance of Bryn Eglwys, and purchased the quarry company for just over £5000. The quarry re-opened in January 1911. The first workings reopened were on the “Broad Vein”, which yielded relatively hard slate that was less popular and therefore difficult to sell. The lack of an available market for this output forced the quarry to switch to extracting softer slate from the “Narrow Vein.

Following the First World War A brief construction boom saw production return to around 4,000 long tons (4,100 t) per year and The 1920s also saw an upsurge in holiday traffic, as Britain recovered from the war and tourism gained in popularity. The Talyllyn saw summer passenger numbers grow significantly and regularly had to supplement its formal passenger stock with slate wagons fitted with planks as seats. An unusual tourist service offered by the railway was to hire a slate wagon, which would be left at Abergynolwyn. At the end of the day the tourists would return to Tywyn in the wagon, powered by gravity. However This service was discontinued in the early 1930s. The lease on Bryn Eglwys expired in 1942, but was extended on an annual basis. Sadly on 26 December 1946, several weakened support columns in the quarry gave way, resulting in a significant collapse; the quarry was deemed unsafe and closed immediately. Haydn Jones had promised to continue operating the railway as long as he was alive and so, despite the closure of the quarry, the railway continued to run trains on a shoestring budget. In 1948 the British railway system was nationalized however the Talyllyn was one of the few operating railways not included. Between 1947 and 1949 the railway ran a passenger service two days a week. In 1949 Haydn Jones, who owned the Aberllefenni Slate Quarry purchased 10 tons of rail from the recently lifted Corris Railway.

Sadly Haydn Jones died on 2 July 1950 and closure of the railway seemed inevitable, but the line continued to operate until October and in 1951 it became the first railway in the world to be preserved as a heritage railway by volunteers after the author and biographer Tom Rolt, visited the line in 1949, along with the locomotive engineer David Curwen and wrote a letter to the Birmingham Post newspaper suggesting that a rescue of the Talyllyn be undertaken. He received sufficient positive response for a meeting of interested enthusiasts to be held on 11 October 1950 at the Imperial Hotel in Birmingham. Around 70 people, including Patrick Whitehouse, attended the meeting. The committee – with Rolt as chairman and Whitehouse as Secretary – met for the first time on 23 October and entered into negotiation with Haydn Jones’ executor concerning the legally complex transfer of ownership from Haydn Jones’ estate to a new company called Talyllyn Holdings Ltd which took place on 8 February 1951, henceforth the Talyllyn Railway Preservation Society effectively took control of the Railway and immediately began to publicise its efforts, hoping to raise funds and find further volunteers to help reopen the railway, and by May nearly 650 members had joined the society. The railway re-opened under the control of the Society for the first time on the Whit Monday bank holiday, 14 May 1951, with trains running between Wharf and Rhydyronen stations. Regular trains began to run on 4 June throughout the summer, with David Curwen acting as the first Chief Mechanical Engineer.

During the early years of preservation, the line struggled to operate using the original rolling stock. When the line was taken over in 1950 Dolgoch was the only operating locomotive and it was apparent that it was in need of a major overhaul. To enable operations to continue two further steam locomotives, Nos. 3 and 4, were purchased from the recently closed Corris Railway in 1951 and named Sir Haydn and Edward Thomas respectively. Because both railways were built to the unusual gauge of 2 ft 3 in (686 mm) it was relatively easy to adapt the Corris locomotives to work on the Talyllyn. No. 3 became the first new locomotive to travel on the railway for over 80 years in 1951, but it frequently derailed, and on inspection it turned out that the Talyllyn track was laid approximately half an inch (13 mm) wider than the official gauge, a deliberate policy by the old company to accommodate the long wheelbase of Talyllyn. 

Both Talyllyn and Dolgoch had unusually wide wheel treads that allowed them to stay on the wide-of-gauge track however This problem was eventually cured. No. 4 was unserviceable when it arrived, but John Alcock, the chairman of the Hunslet Engine Company, was a member of the Preservation Society and had No. 4 overhauled free of charge at his works. No. 4 then began service on the railway in 1952 and worked the majority of the trains that season. On 22 May 1957 the BBC produced a live outside broadcast from the railway, during which Wynford Vaughan Thomas and Huw Weldon undertook a trip from Dolgoch to Abergynolwyn. The publicity from this broadcast drew substantial numbers of visitors to the railway that summer, with more than 57,500 passengers carried, and this increase in revenue in turn enabled the railway to continue to improve its infrastructure and provide tourists with a better experience. In 1958 No. 1 Talyllyn also returned to steam after an extensive overhaul.

The Narrow Gauge Railway Museum at Tywyn Wharf station was also built. The first exhibit for what was to become the museum was a locomotive donated in 1952 by Guinness from their recently closed St. James’s Gate Brewery railway. In 1954 the Preservation Society agreed to start work on a formal museum and exhibits from around the United Kingdom were acquired to form the nucleus of the collection. In 1955 work started on converting the old gunpowder store at Wharf station into a temporary museum building, and in 1956 the first exhibit arrived at Tywyn. The preservation society had long held ambitions to extend the railway along the former mineral extension from Abergynolwyn to the foot of the Alltwyllt incline but construction did not start until 1968 when the winding house for the Abergynolwyn village incline was demolished. In 1976, an extension was opened along the former mineral line from Abergynolwyn to the new station at Nant Gwernol by Wynford Vaughan Thomas who drove in the ceremonial “golden spike” to complete the extension. creation of footpaths also began connecting to the new station and A new footbridge was built crossing the Nant Gwernol gorge and connecting the station with the existing path on the east side of the river. The bridge and paths were opened on 3 May 1980 by Lord Parry, the chairman of the Wales Tourist Board

The Preservation Society celebrated its 50th anniversary in 2001, and as part of the year of celebrations a major new project was launched to once more extend and improve facilities at Tywyn Wharf station. semi-permanent buildings existed housing the Narrow Gauge Railway Museum, but the new plans for the station included the construction of a new two-storey building to house the museum and the extension of the existing station building to house a new cafe and booking office these were officially opened by Prince Charles and The Duchess of Cornwall on 13 July 2005. In 2008 a large amount of equipment was purchased from the 2 ft 6 in (762 mm) gauge military railway at RNAD Trecwn, including a large quantity of track components and three diesel locomotives. In 2011, the railway celebrated the 60th anniversary as a heritage line and In April 2012, locomotive No.2 Dolgoch appeared at the Steel Steam and Stars Gala at the Llangollen Railway, running on a temporary section of narrow gauge track. In June 2013 the railway was awarded the Queen’s Award for Voluntary Service. 2015 was the 150th anniversary of the official opening of the railway. The Talyllyn has also inspired many other people; The fictional Skarloey Railway, which featured in Thomas the Tank Engine by The Rev. W. Awdry, was based on the Talyllyn Railway and preservation of the line inspired the Ealing Comedy film The Titfield Thunderbolt.

Isambard Kingdom Brunel FRS

Best known for building dockyards, the Great Western Railway, steamships, bridges, tunnels and revolutionising public transport and modern engineering, the British mechanical and Civil Engineer Isambard Kingdom Brunel, FRS was born 9 April 1806.When Brunel was eight he was sent to Dr Morrell’s boarding school in Hove, where he learned the classics. His father, was determined that Brunel should have access to the same high-quality education Which he had enjoyed in his youth in France; accordingly, at the age of 14, the younger Brunel was enrolled first at the College of Caen in Normandy, then at Lycée Henri-Quatre in Paris. Sadly his because his Father Marc sent him to expensive schools, he encountered financial problems, however because he was a Prominent engineer the Government intervened on his behalf. When Brunel completed his studies at Henri-Quatre in 1822, he was due to attend the renowned engineering school École Polytechnique, however Brunel studied under the prominent master clockmaker and horologist Abraham-Louis Breguet instead, after he praised Brunel’s potential in letters to his father.In late 1822, having completed his apprenticeship, Brunel returned to England. Brunel worked for several years as an assistant engineer on the hazardous project to create a tunnel under London’s River Thames near Rotherhithe, alongside his Father, who was chief engineer. However cave-ins and severe flooding in 1828 killed a number of Miners a delayed work, with Brunel narrowly escaping death himself.

During the early part of Brunel’s life, the use of railways began to take off as a major means of transport for goods. This influenced Brunel’s involvement in railway engineering, including railway bridge engineering. In 1833, before the Thames Tunnel was complete, Brunel was appointed chief engineer of the Great Western Railway, one of the wonders of Victorian Britain, running from London to Bristol and later Exeter. The company was founded at a public meeting in Bristol in 1833, and was incorporated by Act of Parliament in 1835. It was Brunel’s vision that passengers would be able to purchase one ticket at London Paddington and travel from London to New York, changing from the Great Western Railway to the Great Western steamship at the terminus in Neyland, South Wales. He surveyed the entire length of the route between London and Bristol himself, with the help of many including his Solicitor Jeremiah Osborne of Bristol Law Firm Osborne Clarke who one occasion rowed Isambard Kingdom Brunel down the River Avon himself to survey the bank of the river for the route. Brunel decided to use a broad gauge of 7 ft 1⁄4 in (2,140 mm) for the track, despite almost all other railways using standard Gauge, because he believed Broad Gauge would offer superior running at high speeds; he also proved through both calculation and a series of trials that his broader gauge was the optimum size for providing both higher speeds and a stable and comfortable ride to passengers, with the wider gauge allowing for larger carriages and thus greater freight capacity.

Drawing on Brunel’s experience with the Thames Tunnel, the Great Western designed many architectural feats of engineering including soaring viaducts such as the one in Ivybridge, specially designed stations, and vast tunnels including the Box Tunnel, which was the longest railway tunnel in the world at that time. Brunel also ordered many Locomotives to his own specification including “North Star” and 20-year-old Daniel Gooch (later Sir Daniel) was appointed as Superintendent of Locomotive Engines. Brunel and Gooch chose to locate their locomotive works at the village of Swindon.

Brunel also designed many bridges including the Clifton Suspension Bridge in Bristol, which spans over 700 ft (210 m), and nominally 200 ft (61 m) above the River Avon. Brunel submitted his designs to a committee headed by Thomas Telford, who rejected all entries, in favour of his own design, however the Public voted in favour of Brunel’s design. Brunel also designed the Maidenhead Railway Bridge. Work also started on the Clifton suspension bridge in 1831, but was suspended due to the Queen Square Riots, However Thanks to colleagues at the Institute of Civil Engineers Work recommenced in 1862 and was completed in 1864, five years after Brunel’s death. The Clifton Suspension Bridge still stands today and over 4 million vehicles traverse it every year.

Brunel also designed the Royal Albert Bridge spanning the River Tamar at Saltash near Plymouth, Somerset Bridge (an unusual laminated timber-framed bridge near Bridgwater, the Windsor Railway Bridge. The Maidenhead Railway Bridge over the Thames in Berkshire is still carrying main line trains to the west, even though today’s trains are about ten times heavier than in Brunel’s time.In 1845 Hungerford Bridge, a suspension footbridge across the Thames near Charing Cross Station in London, was opened. It was replaced by a new railway bridge in 1859, and the suspension chains were used to complete the Clifton Suspension Bridge. Brunel also designed the Royal Albert Bridge in 1855 for the Cornwall Railway, this consists of two main spans of 455 ft (139 m), 100 ft (30 m) above mean high spring tide, plus 17 much shorter approach spans. Opened by Prince Albert on 2 May 1859, it was completed in the year of Brunel’s death.

PART TWO

Brunel’s achievements inspired and ignited the imagination of many technically minded Britons. However After Brunel’s death standard gauge was adopted by all railways in the country. Despite the Great Western’s claim of proof that its broad gauge was the better the decision was made to use Stephenson’s standard gauge, mainly because this had already covered a far greater amount of the country. However, by May 1892 when the broad gauge was abolished the Great Western had already been re-laid as dual gauge (both broad and standard). There is also a larger than life bronze statue of him at Neyland holding a steamship in one hand and a locomotive in the othe

another of Brunel’s interesting use of technical innovations was the atmospheric railway, the extension of the Great Western Railway (GWR) southward from Exeter towards Plymouth, technically the South Devon Railway (SDR), though supported by the GWR. Instead of using locomotives, the trains were moved by Clegg and Samuda’s patented system of atmospheric (vacuum) traction, whereby stationary pumps sucked air from a pipe placed in the centre of the track.The section from Exeter to Newton (now Newton Abbot) was completed on this principle, and trains ran at approximately 68 miles per hour (109 km/h). Pumping stations with distinctive square chimneys were sited at two-mile intervals. Fifteen-inch (381 mm) pipes were used on the level portions, and 22-inch (559 mm) pipes were intended for the steeper gradients.The technology required the use of leather flaps to seal the vacuum pipes. The natural oils were drawn out of the leather by the vacuum, making the leather vulnerable to water, rotting it and breaking the fibres when it froze. It had to be kept supple with tallow, which is attractive to rats. The flaps were eaten, and vacuum operation lasted less than a year, from 1847 (experimental service began in September; operations from February 1848) to 10 September 1849. A number of South Devon Railway engine houses still stand, including that at Totnes (scheduled as a grade II listed monument in 2007 to prevent its imminent demolition, even as Brunel’s bicentenary celebrations were continuing) and at Starcross, on the estuary of the River Exe, which is a striking landmark, and a reminder of the atmospheric railway, also commemorated as the name of the village pub.

In 1835, before the Great Western Railway had opened, Brunel proposed extending its transport network by boat from Bristol across the Atlantic Ocean to New York City. The Great Western Steamship Company was formed by Thomas Guppy for that purpose. It was widely disputed whether it would be commercially viable for a ship powered purely by steam to make such long journeys. Technological developments in the early 1830s—including the invention of the surface condenser, which allowed boilers to run on salt water without stopping to be cleaned—made longer journeys more possible, but it was generally thought that a ship would not be able to carry enough fuel for the trip and have room for a commercial cargo. Brunel formulated the theory that the amount a ship could carry increased as the cube of its dimensions, whereas the amount of resistance a ship experienced from the water as it travelled only increased by a square of its dimensions. This would mean that moving a larger ship would take proportionately less fuel than a smaller ship.

To test this theory, Brunel offered his services for free to the Great Western Steamship Company, which appointed him to its building committee and entrusted him with designing its first ship, the Great Western.When it was built, the Great Western was the longest ship in the world at 236 ft (72 m) with a 250-foot (76 m) keel. The ship was constructed mainly from wood, but Brunel added bolts and iron diagonal reinforcements to maintain the keel’s strength. In addition to its steam-powered paddle wheels, the ship carried four masts for sails. The Great Western embarked on her maiden voyage from Avonmouth, Bristol, to New York on 8 April 1838 with 600 long tons (610,000 kg) of coal, cargo and seven passengers on board. Brunel himself missed this initial crossing, having been injured during a fire aboard the ship as she was returning from fitting out in London.

As the fire delayed the launch several days, the Great Western missed its opportunity to claim title as the first ship to cross the Atlantic under steam power alone. Even with a four-day head start, the competing Sirius arrived only one day earlier and its crew was forced to burn cabin furniture, spare yards and one mast for fuel. In contrast, the Great Western crossing of the Atlantic took 15 days and five hours, and the ship arrived at her destination with a third of its coal still remaining, demonstrating that Brunel’s calculations were correct. The Great Western had proved the viability of commercial transatlantic steamship service, which led the Great Western Steamboat Company to use her in regular service between Bristol and New York from 1838 to 1846. She made 64 crossings, and was the first ship to hold the Blue Riband with a crossing time of 13 days westbound and 12 days 6 hours eastbound. The service was commercially successful enough for a sister ship to be required, which Brunel was asked to design.

Part three

Brunel had become convinced of the superiority of propeller-driven ships over paddle wheels. After tests conducted aboard the propeller-driven steam tug Archimedes, he incorporated a large six-bladed propeller into his design for the 322-foot (98 m) Great Britain, which was launched in 1843.Great Britain is considered the first modern ship, being built of metal rather than wood, powered by an engine rather than wind or oars, and driven by propeller rather than paddle wheel. She was the first iron-hulled, propeller-driven ship to cross the Atlantic Ocean.Her maiden voyage was made in August and September 1845, from Liverpool to New York. In 1846, she was run aground at Dundrum, County Down. She was salvaged and employed in the Australian service.And today she is fully preserved and open to the public in Bristol, UK.

In 1852 Brunel began designing a third ship, larger than her predecessors, intended for voyages to India and Australia. Named The Great Eastern and built at John Scott Russell’s Napier Yard in London, she was cutting-edge technology for her time: almost 700 ft (210 m) long, fitted out with the most luxurious appointments, and capable of carrying over 4,000 passengers. Great Eastern was designed to cruise non-stop from London to Sydney and back (since engineers of the time misunderstood that Australia had no coal reserves), and she remained the largest ship built until the start of the 20th century. Like many of Brunel’s ambitious projects, the ship soon ran over budget and behind schedule in the face of a series of technical problems. Also because Brunel’s engineering innovations were so revolutionary and ahead of their time, the prevailing economic and industrial conditions meant It was several decades before transoceanic steamship travel emerged as a viable industry. Great Eastern set forth on her maiden voyage from Southampton to New York on 17 June 1860. Under Captain Sir James Anderson, the Great Eastern was also deployed as an oceanic telegraph cable-layer playing a significant role in laying the first lasting transatlantic telegraph cable, which enabled telecommunication between Europe and North America.

Brunel became A celebrated engineer in his era and numerous monuments were dedicated to Brunel in London at Temple, Brunel University, Paddington station, Bristol, Plymouth, Swindon, Milford Haven and Saltash. The topmast of the Great Eastern is also used as a flagpole at the entrance to Anfield, Liverpool Football Club’s ground.Contemporary locations bear Brunel’s name, such as Brunel University in London, a shopping centre in Bletchley, Milton Keynes, and a collection of streets in Exeter: Isambard Terrace, Kingdom Mews, and Brunel Close. A road, car park, and school in his home city of Portsmouth are also named in his honour, along with one of the city’s largest public houses There is an engineering lab building at the University of Plymouth named in his honour.

In a 2002 BBC television poll Of the “100 Greatest Britons”, Brunel came second, behind Winston Churchill. Brunel’s life and works have been depicted in numerous books, films and television programs. Perhaps the most recent is the 2003 book and BBC TV series, Seven Wonders of the Industrial World, which included a dramatisation of the building of the Great Eastern. Many of Brunel’s bridges are also still in use, having stood the test of time. Brunel’s first engineering project, the Thames Tunnel, is now part of the London Overground network. The Brunel Engine House at Rotherhithe, which once housed the steam engines that powered the tunnel pumps, now houses the Brunel Museum dedicated to the work and lives of Marc and Isambard Kingdom Brunel. Many of Brunel’s original papers and designs are now held in the Brunel Institute alongside the SS Great Britain in Bristol, and are freely available for researchers.

Sir Nigel Gresley

Best known for designing the A4 steam locomotive, Sir Nigel Gresley, The Chief mechanical Engineer of London North Eastern Railway, sadly passed away 5 April 1941. He was Born 19 June 1876 he became one of Britain’s most famous steam locomotive engineers, rising to become Chief Mechanical Engineer (CME) of the London and North Eastern Railway (LNER). He was the designer of some of the most famous steam locomotives in Britain, including the LNER Class A1 and LNER Class A4 4-6-2 Pacific engines. An A1, Flying Scotsman, was the first steam locomotive officially recorded over 100 mph in passenger service, and an A4, number 4468 Mallard, still holds the record for being the fastest steam locomotive in the world (126 mph). Gresley’s engines were considered elegant, both aesthetically and mechanically. His invention of a three-cylinder design with only two sets of Walschaerts valve gear, the Gresley conjugated valve gear, produced smooth running and power at lower cost than would have been achieved with a more conventional three sets of Walschaerts valve gearMechanical .

Gresley was born in Edinburgh, but was raised in Netherseal, Derbyshire, a member of the cadet branch of a family long seated at Gresley, Derbyshire. After attending school in Sussex and at Marlborough College, Gresley served his apprenticeship at the Crewe works of the London and North Western Railway, afterwards becoming a pupil under John Aspinall at Horwich of the Lancashire and Yorkshire Railway (L&YR). After several minor appointments with the L&YR he was made Outdoor Assistant in the Carriage and Wagon Department in 1901; in 1902 he was appointed Assistant Works Manager at Newton Heath depot, and Works Manager the following year.

This rapid rise in his career continued and, in 1904, he became Assistant Superintendent of the Carriage and Wagon Department of the L&YR. A year later, he moved to the Great Northern Railway (GNR) as Carriage and Wagon Superintendent. He succeeded Henry A. Ivatt as CME of the GNR on 1 October 1911. At the 1923 Grouping, he was appointed CME of the newly formed LNER (the post had originally been offered to the ageing John G. Robinson; Robinson declined and suggested the much younger Gresley). In 1936, Gresley was awarded an honorary DSc by Manchester University and a knighthood by King Edward VIII; also in that year he presided over the IMechE

During the 1930s, Sir Nigel Gresley lived at Salisbury Hall, near St. Albans in Hertfordshire. Gresley developed an interest in breeding wild birds and ducks in the moat; intriguingly, among the species were Mallard ducks. The Hall still exists today as a private residence and is adjacent to the de Havilland Aircraft Heritage Centre, with its links to the design of the famous Mosquito aircraft during World War II .In 1936, Gresley designed the 1,500V DC locomotives for the proposed electrification of the Woodhead Line between Manchester and Sheffield. However The Second World War forced the postponement of the project, which was completed in the early 1950s. Sadly Gresley did not live to see the result, tragically dying after a short illness on 5 April 1941 he was buried in Netherseal, Derbyshire. Gresley was succeeded as the LNER CME by Edward Thompson. There is a statue of Sir Nigel Gresley at Kings Cross in London, complete with duck although there are moves afoot to have the duck removed and the new statue without the duck was unveiled 5 April 2016.

Thomas Newcomen

English inventor Thomas Newcomen was born 24 February 1664 in Dartmouth, Devon. He is credited with creating the first practical steam engine for pumping water, the Newcomen steam engine. At the time Devon was noted for its tin mines, where flooding was a major problem, limiting the depth at which the mineral could be mined. Newcomen’s great achievement was his steam engine, developed around 1712, combining the ideas of Thomas Savery and Denis Papin. It is likely that Newcomen was already acquainted with Savery, whose forebears were merchants in south Devon. Savery also had a post with the Commissioners for Sick and Hurt Seamen, which took him to Dartmouth. Savery had devised a ‘fire engine’, a kind of thermic syphon, in which steam was admitted to an empty container and then condensed. The vacuum thus created was used to suck water from the sump at the bottom of the mine. The ‘fire engine’ was not very effective and could not work beyond a limited depth of around thirty feet.Newcomen replaced the receiving vessel (where the steam was condensed) with a cylinder containing a piston. Instead of the vacuum drawing in water, it drew down the piston. This was used to work a beam engine, in which a large wooden beam rocked upon a centralfulcrum. On the other side of the beam was a chain attached to a pump at the base of the mine. As the steam cylinder was refilled with steam, readying it for the next power stroke, water was drawn into the pump cylinder and expelled into a pipe to the surface by the weight of the machinery. Newcomen and his partner John Calley built one of the first engines at the Conygree Coalworks near Dudley in the West Midlands. A working replica of this engine can be seen at the Black Country Living Museum nearby.

The Newcomen engine held its place without material change for about three-quarters of a century, spreading gradually to more and more areas of the UK and to mainland Europe. At first brass cylinders had been used but these were expensive and limited in size. New iron casting techniques pioneered by the Coalbrookdale Company in the 1720s allowed bigger and bigger cylinders to be used, up to about 6 feet (1.8 m) in diameter by the 1760s, and experience gradually led to better construction and minor refinements in layout. Its mechanical details were much improved by John Smeaton, who built many large engines of this type in the early 1770s; his improvements were rapidly adopted. By 1775 about 600 Newcomen engines had been built, although many of these had worn out before then, and been abandoned or replaced.The Newcomen Engine was by no means an efficient machine, although it was probably as complicated as engineering and materials techniques of the early eighteenth century could support. Much heat was lost when condensing the steam, as this cooled the cylinder. This did not matter unduly at a colliery, where unsaleable small coal (slack) was available, but significantly increased the mining costs where coal was not readily available, as in Cornwall. Therefore, Newcomen’s engine was gradually replaced after 1775 in areas where coal was expensive (especially in Cornwall) by an improved design, invented by James Watt, in which the steam was condensed in a separate condenser.

The Watt steam engine, aided by better engineering techniques including Wilkinson’s boring machine, was much more fuel efficient, enabling Watt and his partner Matthew Boulton to collect substantial royalties based on the fuel saved.Watt subsequently made other improvements, including the double-acting engine, where both the up and down strokes were power strokes. These were especially suitable for driving textile mills, and many Watt engines were employed in these industries. At first attempts to drive machinery by Newcomen engines had mixed success, as the single power stroke produced a jerky motion, but use of flywheels and better engineering largely overcame these problems. By 1800, hundreds of non-Watt rotary engines had been built, especially in collieries and ironworks where irregular motion was not a problem but also in textile mills. Despite Watt’s improvements, Common Engines (as they were then known) remained in use for a considerable time, and many more Newcomen engines than Watt ones were built even during the period of Watt’s patent (up to 1800), as they were cheaper and less complicated: of over 2,200 engines built in the eighteenth century, only about 450 were Watt engines. Elements of Watt’s design, especially the Separate Condenser, were incorporated in many “pirate” engines. Even after 1800 Newcomen type engines continued to be built and condensers were added routinely to these. They were also commonly retro-fitted to existing Newcomen engines (the so-called “pickle-pot” condenser).

There are examples of Newcomen engines in the Science Museum (London) and the Ford Museum, Dearborn amongst other places. Perhaps the last Newcomen-style engine to be used commercially – and the last still remaining on its original site – is at the Elsecar Heritage Centre, near Barnsley in South Yorkshire. The only Newcomen engines that can be shown working are believed to be the Newcomen Memorial Engine at Dartmouth and the replica engine at the Black Country Museum in Dudley, West Midlands. Comparatively little is known of Newcomen’s later life. In his later life (at least), the engine affairs were conducted through an unincorporated company, the ‘Proprietors of the Invention for Raising Water by Fire’. Its secretary and treasurer was John Meres, clerk to the Society of Apothecaries in London. That society formed a company which had a monopoly on supplying medicines to the Navy providing a close link with Savery, whose will he witnessed. The Committee of the Proprietors also included Edward Wallin, a Baptist of Swedish descent; and pastor of a church at Maze Pond, Southwark. Newcomen died at his house 5 August 1729, and his body was buried atBunhill Fields, a cemetery in north London; the exact location of his grave is now not known.By the time of his death, about 75 of his engines, operating under Savery’s patent (extended by statute so that it did not expire until 1733), had been installed by Newcomen and others in most of the important mining districts of Britain: draining coal mines in the Black Country, Warwickshire and near Newcastle upon Tyne; at tin and copper mines in Cornwall; and in lead mines in Flintshire andDerbyshire, amongst other places

Pen-y-Darren

On 21 February 1804, the world’s first self propelling locomotive, the Pen-y-Darren, ran along the Merthyr Tydfil treatment road from Pen-y-Darren to Abercynon a distance of 9.75 miles(16 kilometres). The Pen-y-Darren was based on a 1802, high-pressure steam engines which had been built by Cornish engineer Richard Trevithick to drive a hammer at the Pen-y-Darren Ironworks in Merthyr Tydfil, Mid Glamorgan . With the assistance of Rees Jones, an employee of the iron works and under the supervision of Samuel Homfray, the proprietor, The engine was mounted on wheels and turned it into a locomotive. In 1803, Trevithick sold the patents for his locomotives to Samuel Homfray.

Homfray was so impressed with Trevithick’s locomotive that he made a bet with another ironmaster, Richard Crawshay, for 500 guineas that Trevithick’s steam locomotive could haul ten tons of iron along the Merthyr Tydfil Tramroad from Penydarren to Abercynon. Amid great interest from the public, on 21 February 1804 it successfully carried 10 tons of iron, 5 wagons and 70 men the full distance in 4 hours and 5 minutes, an average speed of approximately 2.4 mph (3.9 km/h). as well as Homfray, Crawshay and the passengers, other witnesses includedMr. Giddy, a respected patron of Trevithick and an ‘engineer from the Government’. the engineer from the government was probably a safety inspector and particularly interested in the boiler’s ability to withstand high steam pressures.

The configuration of the Pen-y-darren engine differed from the Coalbrookdale engine. The cylinder was moved to the other end of the boiler so that the firedoor was out of the way of the moving parts. This obviously also involved putting the crankshaft at the chimney end. The locomotive comprised a boiler with a single return flue mounted on a four wheel frame at one end, a single cylinderwith very long stroke was mounted partly in the boiler, and a piston rod crosshead ran out along a slidebar, an arrangement that looked like a giant trombone. As there was only one cylinder, this was coupled to a large flywheel mounted on one side. The rotational inertia of the flywheel would even out the movement that was transmitted to a central cog-wheel that was, in turn connected to the driving wheels. It used a high-pressure cylinder without a condenser, the exhaust steam was sent up the chimney assisting the draught through the fire, increasing efficiency even more.

Pen-y-Darren

Despite many people’s doubts, he won the bet and showed that, provided that the gradient was sufficiently gentle, it was possible to successfully haul heavy carriages along a “smooth” iron road using the adhesive weight alone of a suitably heavy and powerful steam locomotive. Trevithick’s was probably the first to do so; however some of the short cast iron plates of the tramroad broke under the locomotive as they were intended only to support the lighter axle load of horse-drawn wagons and so the tramroad returned to horse power after the initial test run. Homfray was pleased he won his bet. The engine was placed on blocks and reverted to its original stationary job of driving hammers. In modern Merthyr Tydfil, behind the monument to Trevithick’s locomotive is a stone wall, the sole remainder of the former boundary wall of Homfray’s Penydarren House. A full-scale working reconstruction of the Pen-y-darren locomotive was commissioned in 1981 and delivered to the Welsh Industrial and Maritime Museum in Cardiff; when that closed, it was moved to the National Waterfront Museum in Swansea. During special events it is run on a 40m length of rail outside the museum.

James Watt FRS FRSE

Scottish inventor, mechanical engineer, and chemist James Watt FRS FRSE was born 30 January 1736 (19 January 1736 OS in Greenock, Renfrewshire. His father was a shipwright, ship owner and contractor, and served as the town’s chief baillie,while his mother, Agnes Muirhead, came from a well educated distinguished family. Watt’s grandfather, Thomas Watt, was a mathematics teacher and baillie to the Baron of Cartsburn. Watt did not attend school regularly; initially he was mostly schooled at home by his mother but later he attended Greenock Grammar School. He exhibited great manual dexterity, engineering skills and an aptitude for mathematics, but is said to have suffered prolonged bouts of ill-health as a child.

When he was eighteen, his mother died and his father’s health began to fail. Watt travelled to London to study instrument-making for a year, then returned to Scotland, settling in Glasgow intent on setting up his own instrument-making business. He made and repaired brass reflecting quadrants, parallel rulers, scales, parts for telescopes, and barometers, among other things. However Because he had not served at least seven years as an apprentice, the Glasgow Guild of Hammermen (which had jurisdiction over any artisans using hammers) blocked his application, despite there being no other mathematical instrument makers in Scotland. However the arrival of astronomical instruments, bequeathed by Alexander Macfarlane to the University of Glasgow which required expert handling, Allowed Watt to bypass this stalemate. These instruments were eventually installed in the Macfarlane Observatory. He was offered the opportunity to set up a small workshop within the university by two of the professors, the physicist and chemist Joseph Black and Adam Smith. At first he worked on maintaining and repairing scientific instruments used in the university, helping with demonstrations, and expanding the production of quadrants. In 1759 he formed a partnership with John Craig, an architect and businessman, to manufacture and sell a line of products including musical instruments and toys. This partnership lasted for the next six years, and employed up to sixteen workers.

While working as an instrument maker at the University of Glasgow, Watt became interested in the technology of steam engines After noticing the steam from a boiling kettle forced the lid to move. His friend, John Robison, then suggested steam could be used as a source of motive power. He realized that contemporary steam engine designs wasted a great deal of energy by repeatedly cooling and reheating the cylinder. Watt introduced a design enhancement, the separate condenser, which avoided this waste of energy and radically improved the power, efficiency, and cost-effectiveness of steam engines. Eventually he adapted his engine to produce rotary motion, greatly broadening its use beyond pumping water. Watt dramatically improved on the efficiency of Thomas Newcomen’s 1712 Newcomen steam engine with his Watt steam engine in 1781, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world.

The design of the Newcomen engine, in use for almost 50 years for pumping water from mines, had hardly changed from its first implementation. Watt began to experiment with steam, though he had never seen an operating steam engine. He tried constructing a model. He realised the importance of latent heat—the thermal energy released or absorbed during a constant-temperature process—in understanding the engine, which, unknown to Watt, his friend Joseph Black had previously discovered some years before. In 1763, Watt was asked to repair a model Newcomen engine belonging to the university. Even after repair, the engine barely worked. After much experimentation, Watt demonstrated that about three-quarters of the thermal energy of the steam was being wasted heating the engine cylinder on every cycle. Watt decided to condense the steam in a separate chamber apart from the piston, and to maintain the temperature of the cylinder at the same temperature as the injected steam by surrounding it with a “steam jacket.Thus very little energy was absorbed by the cylinder on each cycle, making more available to perform useful work. Sadly Watt had financial difficulties constructing a full scale engine to demonstrate his findings. Luckily backing came from John Roebuck, the founder of the celebrated Carron Iron Works near Falkirk, with whom he now formed a partnership. Roebuck lived at Kinneil House in Bo’ness, during which time Watt worked at perfecting his steam engine, however the Piston and cylinder could not be manufactured with sufficient precision. Watt also worked first as a surveyor, then as a civil engineer for eight years to finance his work. Sadly

Sadly Roebuck went bankrupt, however salvation came in the form of Matthew Boulton, who owned the Soho Manufactory works near Birmingham, and acquired his patent rights. Through Boulton, Watt finally had access to some of the best iron workers in the world. The difficulty of the manufacture of a large cylinder with a tightly fitting piston was solved by John Wilkinson, who had developed precision boring techniques for cannon making at Bersham, near Wrexham, North Wales. Watt and Boulton formed a hugely successful partnership (Boulton and Watt) which lasted for the next twenty-five years.In 1776, the first engines were installed and working in commercial enterprises. These first engines were used to power pumps and produced only reciprocating motion to move the pump rods at the bottom of the shaft. The design was commercially successful, and for the next five years Watt installed more engines, mostly in Cornwall for pumping water out of mines. These early engines were not manufactured by Boulton and Watt, but were made by others according to drawings made by Watt, who served in the role of consulting engineer. The field of application for the invention was greatly widened when Boulton urged Watt to convert the reciprocating motion of the piston to produce rotational power for grinding, weaving and milling. Although a crank seemed the obvious solution to the conversion Watt and Boulton were stymied by a patent for this, whose holder, James Pickard, and associates proposed to cross-license the external condenser. Watt adamantly opposed this and they circumvented the patent by their sun and planet gear in 1781.

Watt made a number of other improvements and modifications to the steam engine. Such as A double acting engine, in which the steam acted alternately on the two sides of the piston. He also described methods for working the steam “expansively” (i.e., using steam at pressures well above atmospheric). He designed A compound engine, which connected two or more engines, a steam indicator which prevented these primative boilers from exploding and parallel motion which was essential in double-acting engines as it produced the straight line motion required for the cylinder rod and pump, from the connected rocking beam, whose end moves in a circular arc. He also created a throttle valve to control the power of the engine, and a centrifugal governor, all of which made his Steam Engines far more efficient than the Newcomen Engine. In order to minimaze the risk of exploding boilers, Watt restricted his use of high pressure steam and all of his engines used steam at near atmospheric pressure. Watt entered a partnership with Matthew Boulton in 1775. The new firm of Boulton and Watt was eventually highly successful and Watt became a wealthy man.

Watt retired in 1800, the same year that his fundamental patent and partnership with Boulton expired. The famous partnership was transferred to the men’s sons, Matthew Robinson Boulton and James Watt Jr. Watt continued to invent other things before and during his semi-retirement though none was as significant as his steam engine work. He invented and constructed several machines for copying sculptures and medallions. He maintained his interest in civil engineering and was a consultant on several significant projects. He proposed, for example, a method for constructing a flexible pipe to be used for pumping water under the Clyde at Glasgow. He and his second wife travelled to France and Germany, and he purchased an estate in mid-Wales at Doldowlod House, one mile south of Llanwrthwl. In 1816 he took a trip on the paddle-steamer Comet, a product of his inventions, to revisit his home town of Greenock. James Watt’s improvements to the steam engine converted it from a prime mover of marginal efficiency into the mechanical workhorse of the Industrial Revolution. The availability of efficient, reliable motive power made whole new classes of industry economically viable, and altered the economies of continents. This brought about immense social change, attracting millions of rural families to the towns and cities.

English novelist Aldous Huxley (1894–1963) wrote of Watt; “To us, the moment 8:17 A.M. means something – something very important, if it happens to be the starting time of our daily train. To our ancestors, such an odd eccentric instant was without significance – did not even exist. In inventing the locomotive, Watt and Stephenson were part inventors of time.”

Watt Sadly died on 25 August 1819 at his home “Heathfield” in Handsworth, Staffordshire (now part of Birmingham) at the age of 83. He was buried on 2 September in the graveyard of St Mary’s Church, Handsworth. However he received many honours for his pioneering work during his lifetime. In 1784 he was made a fellow of the Royal Society of Edinburgh, and was elected as a member of the Batavian Society for Experimental Philosophy, of Rotterdam in 1787. In 1789 he was elected to the elite group, the Smeatonian Society of Civil Engineers. In 1806 he was conferred the honorary Doctor of Laws by the University of Glasgow. The French Academy elected him a Corresponding Member and he was made a Foreign Associate in 1814. The watt is named after James Watt for his contributions to the development of the steam engine, and was adopted by the Second Congress of the British Association for the Advancement of Science in 1889 and by the 11th General Conference on Weights and Measures in 1960 as the unit of power incorporated in the International System of Units (or “SI”).Boulton and Watt also feature on a Bank of England £50 note. the two industrialists pictured side by side with images of Watt’s steam engine and Boulton’s Soho Manufactory. Quotes attributed to each of the men are inscribed on the note: “I sell here, sir, what all the world desires to have—POWER” (Boulton) and “I can think of nothing else but this machine” (Watt). In 2011 he was one of seven inaugural inductees to the Scottish Engineering Hall of Fame.

Metropolitan Railway

The Metropolitan Railway (also known as the Met opened on 10 January 1863 between Farringdon Station and London Paddington Station. It served London from 1863 to 1933, its main line heading north-west from the capital’s financial heart in the City to what were to become the Middlesex suburbs. Its first line connected the main-line railway termini at Paddington, Euston, and King’s Cross to the City. The first section was built beneath the New Road using the “cut-and-cover” method between Paddington and King’s Cross and in tunnel and cuttings beside Farringdon Road from King’s Cross to near Smithfield, near the City. It opened to the public on 10 January 1863 with gas-lit wooden carriages hauled by steam locomotives, and became the world’s first passenger-carrying designated underground railway.

The line was soon extended from both ends, and northwards via a branch from Baker Street. It reached Hammersmith in 1864, Richmond in 1877 and completed the Inner Circle in 1884, however the most important route was the line north into the Middlesex countryside, where it stimulated the development of new suburbs. Harrow was reached in 1880, and the line eventually extended to Verney Junction in Buckinghamshire, more than 50 miles (80 kilometres) from Baker Street and the centre of London.

Electric traction was introduced in 1905 and by 1907 electric multiple units operated most of the services, though electrification of outlying sections did not occur until decades later. Unlike other railway companies in the London area, the Met developed land for housing, and after World War I promoted housing estates near the railway using the “Metro-land” brand. On 1 July 1933, the Met was amalgamated with the Underground Electric Railways Company of London and the capital’s tramway and bus operators to form the London Passenger Transport Board. Former Met tracks and stations are used by the London Underground’s Metropolitan, Circle, District, Hammersmith & City, Piccadilly, and Jubilee lines, and by Chiltern Railways.