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Flangeless Driver
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive). On a conventional, non-articulated locomotive, the driving wheels are all coupled together with side rods (also known as coupling rods); normally one pair is directly driven by the main rod (or connecting rod) which is connected to the end of the piston rod; power is transmitted to the others through the side rods. On diesel and electric locomotives, the driving wheels may be directly driven by the traction motors. Coupling rods are not usually used, and it is quite common for each axle to have its own motor. Jackshaft drive and coupling rods were used in the past (e.g. in the Swiss Crocodile locomotive) but their use is now confined to shunter locomotives. On an articulated locomotive or a duplex locomotive, driving wheels are grouped into sets with wheels within each set linked together. Diameter Driving wheels ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
462driving
46 may refer to: * 46 (number) * One of the years 46 BC, AD 46, 1946, 2046 * ''46'', a 1983 album by Kino (band), Kino * "Forty Six", a song by Karma to Burn from the album ''Appalachian Incantation'', 2010 * 46 Hestia, a main-belt asteroid * DAF 46, a small family car {{Number disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotive
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, Fuel oil, oil or, rarely, Wood fuel, wood) to heat water in the locomotive's Boiler (power generation), boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels. In most locomotives, the steam is admitted alternately to each end of its Steam locomotive components, cylinders in which pistons are mechanically connected to the locomotive's main wheels. Fuel and water supplies are usually carried with the locomotive, either on the locomotive itself or in a Tender (rail), tender coupled to it. #Variations, Variations in this general design include electrically powered boilers, turbines in place of pistons, and using steam generated externally. Steam locomotives were first developed in the United Kingdom of Great Britain an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Side Rod
A coupling rod or side rod connects the driving wheels of a locomotive. Steam locomotives in particular usually have them, but some Diesel locomotive, diesel and Electric locomotive, electric locomotives, especially older ones and switcher locomotive, shunter locomotives, also have them. The coupling rods transfer the power of drive to all wheels. Development Locomotion No. 1 was the first locomotive to employ coupling rods rather than Chain drive, chains. In the 1930s reliable roller bearing coupling rods were developed. Allowance for vertical motion In general, all railroad vehicles have Suspension (vehicle), spring suspension; without springs, irregularities in the track could lift wheels off the rail and cause impact damage to both rails and vehicles. Driving wheels are typically mounted so that they have around 1 inch (2.5 cm) of vertical motion. When there are only 2 coupled axles, this range of motion places only slight stress on the crank pins. With more axles, ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotive Driving Wheel
Steam is water vapor, often mixed with air or an aerosol of liquid water droplets. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Saturated or superheated steam is invisible; however, wet steam, a visible mist or aerosol of water droplets, is often referred to as "steam". When liquid water becomes steam, it increases in volume by 1,700 times at standard temperature and pressure; this change in volume can be converted into work (physics), mechanical work by steam engines such as reciprocating engine, reciprocating piston type engines and steam turbines, which are a sub-group of steam engines. Piston type steam engines played a central role in the Industrial Revolution and modern steam turbines are used to generate more than 80% of the world's electricity. If liquid water comes in contact with a very hot surface or depressurizes quickly below its vapor pressure, vapour pressure, it can create a steam exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR WH Class
The NZR WH class was a class of three steam locomotives built by Manning Wardle in 1884 for service on New Zealand's private Wellington and Manawatu Railway Company (WMR). They did not acquire their WH classification until 1908 when WMR was nationalised and incorporated into the New Zealand Government Railways (NZR). A total of five locomotives were purchased by the WMR but two had been sold by the time NZR took over the company. Introduction The first locomotives purchased by the WMR were five 2-6-2T light tank locomotives, to be used for construction work and then for local traffic. The WMR engineer in charge of construction Harry Higginson sent his requirements to the WMR’s agent in London Sir Julius Vogel in 1883. Mr Bromley drew up detailed drawings and specifications, and a tender was awarded in January 1884 to Manning Wardle of Leeds, England. The first locomotive was tested at Leeds by Mr Bromley, who was killed in a railway accident at Bulhouse while returning to L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Everett Railroad 11
Everett Railroad No. 11 is a 2-6-0 "Mogul" type steam locomotive. It was built in 1920 by the American Locomotive Company's Cooke Works for export to Cuba, but it remained in the United States and was sold to the Narragansett Pier Railroad in 1923. It was later operated by the Bath and Hammondsport Railroad until 1949. The locomotive was acquired by the Rail City museum in New York State in 1955, where it hauled excursion trains until 1972. In 1977, No. 11 returned to the Narragansett Pier Railroad and was partially restored, then was sold to the Middletown and New Jersey Railroad, where it was stored indoors. In 2006, No. 11 was purchased by the Everett Railroad, who sent it to the Western Maryland Scenic Railroad's shops for a complete restoration. In October 2015, the restoration was completed, and No. 11 began hauling tourist trains for the Everett Railroad. In 2022, the locomotive was converted from coal to oil firing. History Construction and revenue service No. 11 was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flange
A flange is a protruded ridge, lip or rim (wheel), rim, either external or internal, that serves to increase shear strength, strength (as the flange of a steel beam (structure), beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe (fluid conveyance), pipe, steam cylinder, etc., or on the lens mount of a camera); or for stabilizing and guiding the movements of a machine or its parts (as the inside flange of a railroad car, rail car or tram train wheel, wheel, which keep the wheels from derailment, running off the rail profile, rails). Flanges are often attached using bolts in the pattern of a bolt circle. Flanges play a pivotal role in piping systems by allowing easy access for maintenance, inspection, and modification. They provide a means to connect or disconnect Pipe (fluid conveyance), pipes and equipment without the need for welding, which simplifies installation and reduces downtime during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNR Stirling 4-2-2
The Great Northern Railway (Great Britain), Great Northern Railway (GNR) No. 1 class Stirling Single is a class of steam locomotive designed for Express train, express passenger work. Designed by Patrick Stirling (railway engineer), Patrick Stirling, they are characterised by a single pair of large (8 ft 1 in) driving wheels which led to the nickname ''"eight-footer"''. Originally the locomotive was designed to haul up to 26 passenger carriages at an average speed of . They could reach speeds of up to 85 mph (137 km/h). Development On his arrival at GNR, Stirling set out to standardise the railway's rolling stock. He also borrowed a 'single-wheeler' from the Great Eastern Railway and, in 1868, designed two versions of a arrangement with driving wheels. The outcome in 1870 was a locomotive with driving wheels with outside cylinders, designed specifically for high-speed expresses between York and London. The British norm at the time were inside cylinders. Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gear Ratio
A gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage. Gear teeth are designed to ensure the Pitch circle diameter (gears), pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next. Features of gears and gear trains include: * The gear ratio of the pitch circles of mating gears defines the speed ratio and the mechanical advantage of the gear set. * A epicyclic gearing, planetary gear train provides high gear reduction in a compact package. * It is possible to design gear teeth for gears that are non-circular gear, non-circular, yet still transmit torque smoothly. * The speed ratios of chain drive, chain and belt (mechanical), belt drives are computed in the same way as gear ratios. See bicycle gearing. The transmission of rotation between contacting toothed wheels can be traced back to the Antikyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trailing Wheel
On a steam locomotive, a trailing wheel or trailing axle is generally an unpowered wheel or axle (Wheelset (rail transport), wheelset) located behind the driving wheels. The axle of the trailing wheels is usually located in a trailing Bogie, truck. On some large locomotives, a booster engine was mounted on the trailing truck to provide extra tractive effort when starting a heavy train and at low speeds on gradients. Trailing wheels were used in some early locomotives but fell out of favor for a time during the latter 19th century. As demand for more powerful locomotives increased, trailing wheels began to be used to support the crew cab and rear firebox area. Trailing wheels first appeared on American locomotives between 1890 and 1895, but their axle worked in rigid pedestals. It enabled boilers to be lowered, since the top of the main frames was dropped down behind the driving wheels and under the firebox. The firebox could also be longer and wider, increasing the heating su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
