Thuile locomotive

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Thuile
Thuileloco.jpg
Thuile locomotive at Chartres, 1900
Type and origin
Power typeSteam
DesignerThuile
BuilderSchneider
Build date1899
Specifications
Configuration:
   Whyte 4-4-6
   UIC 2'B3'
Gauge 1,435 mm (4 ft 8 12 in)
Leading dia. 1.06 metres (3 ft 6 in)
Driver dia.2.5 metres (8 ft 2 in)
Trailing dia. 1.06 metres (3 ft 6 in)
Wheelbase 12.25 metres (40 ft 2 in)
Length24.80 metres (81 ft 4 in) (locomotive & tender)
Loco weight80.60 tonnes (79.33 long tons)
Firebox:
  Firegrate area
4.68 square metres (50.4 sq ft)
Boiler pressure15 kg/cm2 (213 lb/in2)
Heating surface297.70 square metres (3,204.4 sq ft)
Cylinders 2
Cylinder size 510 x 700mm (20 x 27½ in)
Performance figures
Maximum speed117 kilometres per hour (73 mph)
Career
Operators Chemin de Fer de l'Etat
Scrapped1904 (locomotive), post 1946 (tender)

The Thuile locomotive was a steam locomotive designed by Monsieur Thuile, of Alexandria, Egypt, and built in 1899.

Steam locomotive railway locomotive that produces its pulling power through a steam engine

A steam locomotive is a type of railway locomotive that produces its pulling power through a steam engine. These locomotives are fueled by burning combustible material – usually coal, wood, or oil – to produce steam in a boiler. The steam moves reciprocating pistons which are mechanically connected to the locomotive's main wheels (drivers). Both fuel and water supplies are carried with the locomotive, either on the locomotive itself or in wagons (tenders) pulled behind.

Alexandria Metropolis in Egypt

Alexandria is the second-largest city in Egypt and a major economic centre, extending about 32 km (20 mi) along the coast of the Mediterranean Sea in the north central part of the country. Its low elevation on the Nile delta makes it highly vulnerable to rising sea levels. Alexandria is an important industrial center because of its natural gas and oil pipelines from Suez. Alexandria is also a popular tourist destination.

Egypt Country spanning North Africa and Southwest Asia

Egypt, officially the Arab Republic of Egypt, is a country spanning the northeast corner of Africa and southwest corner of Asia by a land bridge formed by the Sinai Peninsula. Egypt is a Mediterranean country bordered by the Gaza Strip and Israel to the northeast, the Gulf of Aqaba and the Red Sea to the east, Sudan to the south, and Libya to the west. Across the Gulf of Aqaba lies Jordan, across the Red Sea lies Saudi Arabia, and across the Mediterranean lie Greece, Turkey and Cyprus, although none share a land border with Egypt.

History

Thuile proposed a 6-4-8 or 6-4-6 locomotive with 3-metre-diameter (9 ft 10 in) driving wheels, but this was not built. [1]

Whyte notation

The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte, and came into use in the early twentieth century following a December 1900 editorial in American Engineer and Railroad Journal. The notation counts the number of leading wheels, then the number of driving wheels, and finally the number of trailing wheels, numbers being separated by dashes. Other classification schemes, like UIC classification and the French, Turkish and Swiss systems for steam locomotives, count axles rather than wheels.

Driving wheel powered wheel of a railway locomotive

On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons. On a conventional, non-articulated locomotive, the driving wheels are all coupled together with side rods ; normally one pair is directly driven by the main rod which is connected to the end of the piston rod; power is transmitted to the others through the side rods.

The design was taken up by Schneider, of Le Creusot, who built a 4-4-6 with 2.5-metre-diameter (8 ft 2 in) driving wheels, and a forward cab for the driver. The two-cylinder locomotive had Walschaerts valve gear and a double-lobed boiler of nickel-steel. The locomotive was exhibited at the International Exposition in Paris in 1900, and the trials were undertaken on the Chemin de Fer de l'Etat line between Chartres and Thouars. A speed of 117 kilometres per hour (73 mph) was attained hauling a load of 186 tonnes (183 long tons). [1]

4-4-6 locomotive wheel arrangement

A 4-4-6, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a locomotive with:

Walschaerts valve gear

The Walschaerts valve gear is a type of valve gear invented by Belgian railway mechanical engineer Egide Walschaerts in 1844 used to regulate the flow of steam to the pistons in steam engines. The gear is sometimes named without the final "s", since it was incorrectly patented under that name. It was extensively used in steam locomotives from the late 19th century until the end of the steam era.

Exposition Universelle (1900)

The Exposition Universelle of 1900, better known in English as the 1900 Paris Exposition, was a world's fair held in Paris, France, from 14 April to 12 November 1900, to celebrate the achievements of the past century and to accelerate development into the next. The style that was universally present in the Exposition was Art Nouveau. The fair, visited by nearly 50 million, displayed many machines, inventions, and architecture that are now nearly universally known, including the Grande Roue de Paris Ferris wheel, Russian nesting dolls, diesel engines, talking films, escalators, and the telegraphone.

The trials ended when Thuile was killed in June 1900 - apparently by leaning too far out of the locomotive and being in collision with a lineside pole. [2] The locomotive was returned to Schneider. It was scrapped in 1904. The tender survived until at least 1946, when it was noted at Saint Pierre-des-Corps. [1]

Related Research Articles

4-8-2 locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives, 4-8-2 represents the wheel arrangement of four leading wheels, eight powered and coupled driving wheels and two trailing wheels. This type of steam locomotive is commonly known as the Mountain type.

2-10-4 locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives, a 2-10-4 locomotive has two leading wheels on one axle, usually in a bissel truck, ten coupled driving wheels on five axles, and four trailing wheels on two axles, usually in a bogie. These were referred to as the Texas type in most of the United States, the Colorado type on the Burlington Route and the Selkirk type in Canada.

4-6-4 locomotive wheel arrangement

Under the Whyte notation for the classification of locomotives, 4-6-4 represents the wheel arrangement of four leading wheels, six powered and coupled driving wheels and four trailing wheels. In France where the type was first used, it is known as the Baltic while it became known as the Hudson in most of North America.

4-6-0 wheel arrangement of a locomotive with 4 leading wheels, 6 driving wheels and no trailing wheels

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 4-6-0 represents the configuration of four leading wheels on two axles in a leading bogie, six powered and coupled driving wheels on three axles and no trailing wheels. In the mid 19th century, this wheel arrangement became the second most popular configuration for new steam locomotives in the United States of America, where this type is commonly referred to as a Ten-wheeler.As a locomotive pulling trains of lightweight all wood passenger cars in the 1890-1920s, it was exceptionally stable at near 100 mph speeds on the New York Central's New York to Chicago Water Level Route and on the Reading Railroad's Camden to Atlantic City, NJ, line. As passenger equipment grew heavier with all steel construction, heavier locomotives replaced the Ten Wheeler.

2-8-4 locomotive wheel arrangement

Under the Whyte notation, a 2-8-4 is a steam locomotive that has one unpowered leading axle, usually in a leading truck, followed by four powered and coupled driving axles, and two unpowered trailing axles, usually mounted in a bogie. This locomotive type is most often referred to as a Berkshire, though the Chesapeake and Ohio Railway used the name Kanawha for their 2-8-4s. In Europe, this wheel arrangement was mostly seen in mainline passenger express locomotives and, in certain countries, in tank locomotives.

Crampton locomotive

A Crampton locomotive is a type of steam locomotive designed by Thomas Russell Crampton and built by various firms from 1846. The main British builders were Tulk and Ley and Robert Stephenson and Company.

4-4-2 (locomotive) locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 4-4-2 represents a configuration of four leading wheels on two axles, usually in a leading bogie with a single pivot point, four powered and coupled driving wheels on two axles, and two trailing wheels on one axle, usually in a trailing truck which supports part of the weight of the boiler and firebox and gives the class its main improvement over the 4-4-0 configuration.

4-2-2 locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives, 4-2-2 represents the wheel arrangement of four leading wheels on two axles, two powered driving wheels on one axle, and two trailing wheels on one axle.

2-6-4 locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives, a 2-6-4 locomotive has two leading wheels, six coupled driving wheels and four trailing wheels. This arrangement is commonly called Adriatic.

GWR 2900 Class class of 76 two cylinder 4-6-0 locomotives (some ran as 4-4-2 locomotives as a comparison)

The Great Western Railway 2900 or Saint Class incorporated several series of 2-cylinder passenger steam locomotives designed by George Jackson Churchward and built between 1902 and 1913 with differences in the dimensions. The majority of these were built as 4-6-0 locomotives; but thirteen examples were built as 4-4-2. They proved to be a successful class which established the design principles for GWR 2-cylinder classes over the next fifty years.

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Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-8-2+2-8-4 is a Garratt articulated locomotive consisting of a pair of 4-8-2 engine units back to back, with the boiler and cab suspended between them. The 4-8-2 wheel arrangement has four leading wheels on two axles, usually in a leading bogie, eight powered and coupled driving wheels on four axles and two trailing wheels on one axle, usually in a trailing truck. Since the 4-8-2 type is generally known as a Mountain, the corresponding Garratt type is usually known as a Double Mountain.

Chemin de Fer du Finistère

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Engerth locomotive steam locomotive where tender is replaced by articulated bunker

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LNWR 2-2-2 3020 Cornwall preserved British 2-2-2 locomotive

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LNER Thompson Class A2/3 class of 15 three-cylinder 4-6-2 locomotives

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Arnoux system

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The Heilmann locomotives were a series of three experimental steam-electric locomotives produced in the 1890s for the French Chemins de Fer de l'Ouest. A prototype was built in 1894 and two larger locomotives were built in 1897. These locomotives can be considered the ancestors of diesel-electric locomotives, and other self powered locomotives which use an electric transmission.

PLM 241.C.1 experimental French 4-8-2 locomotive

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References

  1. 1 2 3 "BIG WHEELS FOR HIGH SPEEDS". SNCF Society. Retrieved 2008-04-01.[ dead link ]
  2. Douglas Self. "The Thuile Cabforward" . Retrieved 2008-04-01.