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London Post Office Railway 1927 Stock
The London Post Office Railway 1927 Stock was a type of twin-axle electric stock built in 1927 by British manufacturer English Electric. Ninety of these four-wheeled units were built for the London Post Office Railway system, on which they became the first electric stock to be operated on the underground rail system. History Having been built by English Electric throughout 1927 and introduced onto the London Post Office Railways underground network, the 1927 Stock units quickly proved to be overwhelmed by the amount of mail required to be carried on the network. Along with this, the 1927 Stock proved to not be very reliable as they suffered from mechanical unreliability and high driving wheel wear, this being due to their fixed wheelbase, while also causing heavy track wear themselves as they had problems with the tight curves on the underground lines. Combined with this was their lack of capacity while moving mail through the capital. Due to these problems they were soon repl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1927 Car
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London Post Office Railway
The Post Office Railway, is a narrow gauge, driverless underground railway in London that was built by the Post Office with assistance from the Underground Electric Railways Company of London, to transport mail between sorting offices. Inspired by the Chicago Tunnel Company, it opened in 1927 and operated for 76 years until it closed in 2003. A museum within the former railway was opened in September 2017. Geography The line ran from Paddington Head District Sorting Office in the west to the Eastern Head District Sorting Office at Whitechapel in the east, a distance of . It had eight stations, the largest of which was underneath Mount Pleasant, but by 2003 only three stations remained in use because the sorting offices above the other stations had been relocated. History Use as post office railway In 1911, a plan evolved to build an underground railway long from Paddington to Whitechapel serving the main sorting offices along the route; road traffic congestion was causing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Electric
N.º UIC: 9094 110 1449-3 (Takargo Rail) The English Electric Company Limited (EE) was a British industrial manufacturer formed after the Armistice of 11 November 1918, armistice of World War I by amalgamating five businesses which, during the war, had been making munitions, armaments and aeroplanes. It initially specialised in industrial electric motors and transformers, railway locomotives and traction equipment, diesel motors and steam turbines. Its activities were later expanded to include consumer electronics, nuclear reactors, guided missiles, military aircraft and mainframe computers. Two English Electric aircraft designs became landmarks in British aeronautical engineering; the Canberra and the Lightning. In 1960, English Electric Aircraft (40%) merged with Vickers (40%) and Bristol (20%) to form British Aircraft Corporation. In 1968 English Electric's operations were merged with GEC's, the combined business employing more than 250,000 people. Foundation Aiming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Post Office Railway 1930 Stock
The London Post Office Railway 1930 Stock and 1936 Stock was built by English Electric. These units comprised the bulk of the fleet from the 1930s until the introduction of the 1980 Stock. The articulated units were designed to replace the earlier unsuccessful 1927 Stock, which were prone to derailments. An initial 50 units were ordered, being built in two batches from 1930–1931. They reused electrical equipment from withdrawn 1927 Stock units. Due to an increase in traffic levels, ten further units were built in 1936. The numbering details of units is shown in the table below: After the introduction of the 1980 Stock, some units were retained, being renumbered into the range 35–51 in 1984. All remaining units were withdrawn in 2003 when the system closed. Several units have been preserved, most of which are from the second batch of 1930 Stock. These are listed below: *760 (later 37) - Beeches Light Railway *761 (later 38) - Launceston Steam Railway *803 – Buckingham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
0-4-0
Under the Whyte notation for the classification of steam locomotives, represents one of the simplest possible types, that with two axles and four coupled wheels, all of which are driven. The wheels on the earliest four-coupled locomotives were connected by a single gear wheel, but from 1825 the wheels were usually connected with coupling rods to form a single driven set. The notation 0-4-0T indicates a tank locomotive of this wheel arrangement on which its water and fuel is carried on board the engine itself, rather than in an attached tender. In Britain, the Whyte notation of wheel arrangement was also often used for the classification of electric and diesel-electric locomotives with side-rod-coupled driving wheels. Under the UIC classification used in Europe and, in more recent years, in simplified form in the United States, a 0-4-0 is classified as B (German and Italian) if the axles are connected by side rods or gearing and 020 (French), independent of axle motoring. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction Motor
A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles (electric multiple units) and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with electrical transmission systems (Diesel locomotive#Transmission types, diesel-electric locomotives, electric hybrid vehicles), and battery electric vehicles. Motor types and control DC motor, Direct-current motors with series Field coil, field windings are the oldest type of traction motors. These provide a speed-torque characteristic useful for propulsion, providing high torque at lower speeds for acceleration of the vehicle, and declining torque as speed increases. By arranging the field winding with multiple taps, the speed characteristic can be varied, allowing relatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Current
Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow through semiconductors, insulators, or even through a vacuum as in electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current (AC). A term formerly used for this type of current was galvanic current. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify ''current'' or ''voltage''. Direct current may be converted from an alternating current supply by use of a rectifier, which contains electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be converted into alternating current via an inverter. Direct current has many uses, from the charging of batteries to large power sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Third Rail
A third rail, also known as a live rail, electric rail or conductor rail, is a method of providing electric power to a railway locomotive or train, through a semi-continuous rigid conductor placed alongside or between the rails of a railway track. It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully or almost fully segregated from the outside environment. Third rail systems are usually supplied from direct current electricity. Modern tram systems, street-running, avoid the risk of electrocution by the exposed electric rail by implementing a segmented ground-level power supply, where each segment is electrified only while covered by a vehicle which is using its power. The third-rail system of electrification is not related to the third rail used in dual gauge railways. Description Third-rail systems are a means of providing electric traction power to trains using an additional rail (called a "conductor rail") fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Electrification System
A railway electrification system supplies electric power to railway trains and trams without an on-board prime mover or local fuel supply. Electric railways use either electric locomotives (hauling passengers or freight in separate cars), electric multiple units (passenger cars with their own motors) or both. Electricity is typically generated in large and relatively efficient generating stations, transmitted to the railway network and distributed to the trains. Some electric railways have their own dedicated generating stations and transmission lines, but most purchase power from an electric utility. The railway usually provides its own distribution lines, switches, and transformers. Power is supplied to moving trains with a (nearly) continuous conductor running along the track that usually takes one of two forms: an overhead line, suspended from poles or towers along the track or from structure or tunnel ceilings, or a third rail mounted at track level and contacted by a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2 Ft And 600 Mm Gauge Railways
Two foot and 600 mm gauge railways are narrow gauge railways with track gauges of and , respectively. Railways with similar, less common track gauges, such as and , are grouped with 2 ft and 600 mm gauge railways. Overview Most of these lines are tourist lines, which are often heritage railways or industrial lines, such as the Festiniog Railway in Wales and the Cripple Creek and Victor Narrow Gauge Railroad in Colorado. World War I trench railways produced the greatest concentration of gauge railways to date. In preparation for World War II, the French Maginot Line and Alpine Line also used gauge railways for supply routes to the fixed border defenses. Australia has over of gauge sugar cane railway networks in the coastal areas of Queensland, which carry more than 30 million tonnes of sugarcane a year. Many gauge and gauge railways are used in amusement parks and theme parks worldwide. Exchange of rolling stock The interchange of rolling s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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