Stephenson Link Valve Gear
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Stephenson Link Valve Gear
The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for various kinds of steam engines. It is named after Robert Stephenson but was invented by his employees. Historical background During the 1830s, the most popular valve drive for steam locomotives was known as '' gab motion'' in the United Kingdom and'' V-hook motion'' in the United States. The gab motion incorporated two sets of eccentrics and rods for each cylinder; one eccentric was set to give forward and the other backwards motion to the engine and one or the other could accordingly engage with a pin driving the distribution valve by means of the gabs: - vee-shaped ends to the eccentric rods supposed to catch the rocker driving the valve rod whatever its position. It was a clumsy mechanism, difficult to operate, and only gave fixed valve events. In 1841, two employees of Robert Stephenson and Company, draughtsman William Howe and ...
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Black 5 George Stephenson 7 (5441137329)
Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus Age of Enlightenment, and night versus day. Since the Middle Ages, black has been the symbolic color of solemnity and authority, and for this reason it is still commonly worn by judges and magistrates. Black was one of the first colors used by artists in Neolithic cave paintings. It was used in ancient Egypt and Greece as the color of the underworld. In the Roman Empire, it became the color of mourning, and over the centuries it was frequently associated with death, evil, Witchcraft, witches, and Magic (supernatural), magic. In the 14th century, it was worn by royalty, clergy, judges, and government officials in much of Europe. It became the color worn by Engl ...
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Steam Car
A steam car is a car (automobile) propelled by a steam engine. A steam engine is an external combustion engine (ECE) in which the fuel is combusted outside of the engine, unlike an internal combustion engine (ICE) in which fuel is combusted inside the engine. ECEs have a lower thermal efficiency, but carbon monoxide production is more readily regulated. Steam-powered automobiles were popular with early buyers. Steam was safe, reliable, and familiar. People had decades of experience with it in trains and boats, and even in experimental road vehicles. However, early steam cars required constant care and attention—and up to 30 minutes to start. Automated quick-firing boilers solved these problems, but not before more efficient gasoline engines dominated the market and made steam cars obsolete. The first experimental steam-powered cars were built in the 18th and 19th centuries, but it was not until after Richard Trevithick had developed the use of high-pressure steam around 1800 ...
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Festiniog Railway 0-4-0TT
The Ffestiniog Railway 0-4-0TT were six steam locomotives built by George England and Co. for the Ffestiniog Railway between 1863 and 1867. The locomotives were built to two designs: the first four were originally side tank locomotives and are collectively known as the ''Small England'' class; the final two locomotives were delivered with saddle tanks and are known as the ''Large England'' class. The designation "TT" indicates a tender-tank locomotive, which is a tank locomotive with a tender. In these locomotives, water is carried in tanks on the locomotive while fuel (coal) is carried in the tender. Small England class The Ffestiniog Railway was originally built to be worked by gravity, with horses used to haul the empty slate wagons uphill from Porthmadog to Blaenau Ffestiniog. By the late 1850s it was clear that the line was reaching its carrying capacity, while the production from the slate quarries was continuing to expand. To increase the amount of slate that could be ...
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Ffestiniog Railway
The Ffestiniog Railway ( cy, Rheilffordd Ffestiniog) is a heritage railway based on narrow-gauge, located in Gwynedd, Wales. It is a major tourist attraction located mainly within the Snowdonia National Park. The railway is roughly long and runs from the harbour at Porthmadog to the slate mining town of Blaenau Ffestiniog, travelling through forested and mountainous terrain. The line is single track throughout with four intermediate passing places. The first mile of the line out of Porthmadog runs atop an embankment called ''the Cob'', which is the dyke of the polder known as Traeth Mawr. The Festiniog Railway Company, which owns the railway, is the oldest surviving railway company in the world. It also owns the Welsh Highland Railway, which was re-opened fully in 2011. The two railways share the same track gauge and meet at Porthmadog station, with occasional trains working the entire route from Blaenau Ffestiniog to Caernarfon. History The railway company is prope ...
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GWR 1366 Class
The Great Western Railway (GWR) 1366 Class was a class of 0-6-0 pannier tank steam locomotives built in 1934. They were a useful design and because of their light weight and short wheelbase and were often used on dockside branches or other lines with sharp curvatures. History and development The 1366 class was one of only two pannier tank designs built by the GWR that utilised outside cylinders, although various existing engines inherited by the GWR had pannier tanks and outside cylinders. The 1366 class was developed from the 1361 Class but differed by including a pannier tank rather than a saddle tank, Belpaire firebox, etc. They were designed to replace the 1392 Class. Operational history Originally, five of the six locomotives of the class were allocated to Swindon shed; No. 1371 was originally sent to Llanelly but when they were taken over by British Railways Western Region in 1948 three of the six had been reallocated to Weymouth for use on the docks there. In 1950 t ...
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GWR 1361 Class
The 1361 Class were small steam locomotives built by the Great Western Railway at their Swindon railway works, England, mainly for shunting in docks and other sidings where track curvature was too tight for large locomotives. History The 1361 Class were designed by George Jackson Churchward as an update of the 1392 Class, originally built in 1874 for the Cornwall Minerals Railway. As such they combined unusual and outdated elements, such as saddle tanks and Allan valve gear, with current Great Western details such as the cab, bunker and many minor fittings. G.W.R. were generally being converted to have Belpaire fireboxes and pannier tanks by this date, but the firebox on the 1361 was round topped, so the saddle tank was more appropriate. The wheelbase allowed them to negotiate radius curves, a feature necessary for their intended duties in docks and on lightly laid branch lines. Although, as is conventional, the design is credited to the C.M.E., Harold Holcroft was the j ...
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Alexander Allan (locomotive Engineer)
Alexander Allan was a Scottish mechanical engineer. He was born at Montrose, Angus, in 1809 and died at Scarborough, Yorkshire on 2 June 1891. Biography Alan was born in Montrose, Angus, Scotland in 1809. He undertook a apprenticeship to Mr. Gibb, a millwright. In 1832 aged about 23 he took a position at Robert Stephenson and Company, Newcastle upon Tyne. By 1834 he had moved to Liverpool and taken up a position with George Forrester and Company who were about to begin building railway locomotives. Allan was works manager for George Forrester and Company until 1840. He was the engineer sent for a year to supervise the maintenance of the three Forrester engines ''Vauxhall'', ''Dublin'' and ''Kingstown'' for the first year of their service at Dublin and Kingstown Railway in 1834. From 1843 to 1853 he was Works Manager at the Crewe Works of the Grand Junction Railway, later London and North Western Railway, under Francis Trevithick. He later claimed the credit for designin ...
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Daniel Gooch
Sir Daniel Gooch, 1st Baronet (24 August 1816 – 15 October 1889) was an English railway locomotive and transatlantic cable engineer. He was the first Superintendent of Locomotive Engines on the Great Western Railway from 1837 to 1864 and its chairman from 1865 until his death in 1889. Between 1865 and 1885 Gooch was Conservative MP for Cricklade. Early life Gooch was born in Bedlington, Northumberland, the son of John Gooch, an iron founder, and his wife Anna Longridge. In 1831 his family moved to Tredegar Ironworks, Monmouthshire, South Wales, where his father had accepted a managerial post, and it was there that Daniel would begin training under Thomas Ellis senior, who together with Ironmaster Samuel Homfray and Richard Trevithick pioneered steam railway locomotion. Gooch wrote in his diaries "Large works of this kind are by far the best school for a young engineer to get a general knowledge of what he needs in after life." and "...I look back upon the time spent at ...
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Gooch Valve Gear
The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for various kinds of steam engines. It is named after Robert Stephenson but was invented by his employees. Historical background During the 1830s, the most popular valve drive for steam locomotives was known as '' gab motion'' in the United Kingdom and'' V-hook motion'' in the United States. The gab motion incorporated two sets of eccentrics and rods for each cylinder; one eccentric was set to give forward and the other backwards motion to the engine and one or the other could accordingly engage with a pin driving the distribution valve by means of the gabs: - vee-shaped ends to the eccentric rods supposed to catch the rocker driving the valve rod whatever its position. It was a clumsy mechanism, difficult to operate, and only gave fixed valve events. In 1841, two employees of Robert Stephenson and Company, draughtsman William Howe and patte ...
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Railway Correspondence And Travel Society
The Railway Correspondence and Travel Society (RCTS) is a national society founded in Cheltenham, England in 1928 to bring together those interested in rail transport and locomotives. Since 1929 the Society has published a regular journal ''The Railway Observer'' which records the current railway scene. It also has regional branches which organise meetings and trips to places of interest and an archive & library. It has published definitive multi-volume locomotive histories of the Great Western, Southern and London & North Eastern Railways, and has in progress similar works on the London, Midland & Scottish Railway and British Railways standard steam locomotives. It also has published many other historical railway books since the mid-1950s. On 2 November 2016, the RCTS become a Charitable Incorporated Organisation (CIO), registered number 1169995. Its new Archive and Library (located within the former station-master's house at Leatherhead station) was opened on 6 October 20 ...
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David & Charles
David & Charles Ltd is an English publishing company. It is the owner of the David & Charles imprint, which specialises in craft and lifestyle publishing. David and Charles Ltd acts as distributor for all David and Charles Ltd books and content outside North America, and also distributes Interweave Press publications in the UK and worldwide excluding North America, and as foreign language editions. The company distributes Dover Publications and Reader's Digest books into the UK TradeF&W Media International company overview, http://www.davidandcharles.com/. Accessed 8 January 2014 and is also a UK and Europe distribution platform for the overseas acquired companies Krause Publications and Adams Media. History The current company was founded in 2019, taking the original founding name of the business that was first established in 1960. The company is the UK distributor for Dover Publications. David and Charles was first founded in Newton Abbot, England, on 1 April 1960 by Davi ...
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LMS Stanier Class 5 4-6-0 4767
London Midland and Scottish Railway (LMS) Stanier Black Five, LMS number 4767, BR number 44767 is a preserved steam locomotive. In preservation it has carried the name ''George Stephenson'' though it never bore this in service with British Railways. Service 4767 was completed on the last day of the LMS, 31 December 1947 at Crewe Works. It was unique amongst the 842-strong class in that it featured outside Stephenson link motion in addition to other experimental features; a double chimney, Timken roller bearings throughout and electric lighting. These modifications were part of a series of experiments by George Ivatt to improve the already excellent William Stanier-designed Black Five. 4767 was renumbered 44767 by British Railways after nationalisation in 1948. Its double chimney was removed in 1953. It was withdrawn in December 1967 after a working life of only 20 years. Allocations 44767 was only transferred between sheds five times during its career with British Ra ...
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