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Bulleid Firth Brown Wheel
The Bulleid Firth Brown wheel (BFB) was a locomotive wheel developed for the Southern Railway in the late 1930s. It was a disc wheel, in contrast to the usual spoked wheels in general use on British railways. The wheel was designed by Oliver Bulleid and developed by the steel company Firth Brown of Sheffield. Design The BFB comprises a single disc, with teardrop-shaped indentations to give rigidity, and lightening holes to reduce weight. The advantage over a spoked wheel is that a disc wheel carries the tyre (the metal hoop shrunk onto the wheel to provide contact with the rail) more efficiently; spoked wheels are prone to shrink over time, causing the tyre to work loose, whilst in a disc wheel this is less pronounced. Disc wheels also distribute the weight more evenly, reducing the hammer effect on, and thus the damage to, the rail. The BFB weighed about ten per cent less than a spoked wheel of the same size.Day-Lewis p 146 Name The Bulleid Firth Brown, or BFB, is sometimes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bullied Firth Brown Boxpok Wheel
Bullying is the use of force, coercion, hurtful teasing or threat, to abuse, aggressively dominate or intimidate. The behavior is often repeated and habitual. One essential prerequisite is the perception (by the bully or by others) of an imbalance of physical or social power. This imbalance distinguishes bullying from conflict. Bullying is a subcategory of aggressive behavior characterized by hostile intent, imbalance of power and repetition over a period of time. Bullying is the activity of repeated, aggressive behavior intended to hurt another individual, physically, mentally or emotionally. Bullying can be done individually or by a group, called mobbing, in which the bully may have one or more followers who are willing to assist the primary bully or who reinforce the bully by providing positive feedback such as laughing. Bullying in school and the workplace is also referred to as "peer abuse". Robert W. Fuller has analyzed bullying in the context of rankism. The Swedish-No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SR Q1 Class
The SR Q1 class is a type of austerity steam locomotive constructed during the Second World War. The class was designed by Oliver Bulleid for use on the intensive freight turns experienced during wartime on the Southern Railway network. A total of 40 locomotives were built. Bulleid incorporated many innovations and weight-saving concepts to produce a highly functional design. The class lasted in service until July 1966, and the first member of the class, number C1, has been preserved by the National Railway Museum. The highly unusual and controversial design represents the ultimate development of the British freight engine, capable of hauling trains that were usually allocated to much larger locomotives on other railways. Nicknames for the class included "Ugly Ducklings", "Coffee Pots", "Charlies", "Biscuit Tins", "Biscuit Barrels", "Clockworks" and "Frankensteins". Background In late 1939, the Southern Railway, until then primarily a high-density commuter railway se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locomotive Parts
A locomotive or engine is a rail transport vehicle that provides the motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, motor coach, railcar or power car; the use of these self-propelled vehicles is increasingly common for passenger trains, but rare for freight (see CargoSprinter). Traditionally, locomotives pulled trains from the front. However, push-pull operation has become common, where the train may have a locomotive (or locomotives) at the front, at the rear, or at each end. Most recently railroads have begun adopting DPU or distributed power. The front may have one or two locomotives followed by a mid-train locomotive that is controlled remotely from the lead unit. __TOC__ Etymology The word ''locomotive'' originates from the Latin 'from a place', ablative of 'place', and the Medieval Latin 'causing motion', and is a shortened form of the term ''locomotive engine'', which was first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wobbly-web Wheel
The wobbly-web wheel is a form of metal disc wheel where the disc is 'wobbled' into spokes. This provides a stiffer, lightweight wheel. Wobbly-web wheels are best known through their iconic use on Lotus racing cars of the late 1950s and 1960s. Theory The theory of a disc wheel depends on their behaviour as a stressed skin structure. Their materials are assumed to be inextensible, but flexible. Such a skin is stiff against tensile loads in the plane of the skin, but flexible for loads perpendicular to it. A flat disc is thus strong for radial loads in the plane of the disc and also for torques. It is flexible for axial loads, perpendicular to the disc plane and also for nutating, wobble of the axle at an angle to the main axis. A coned disc also becomes stiff against axial loads, as the web is no longer purely perpendicular to the axis of the wheel. Unlike a flat disc, there is no direction where the whole of a coned disc would be perpendicular (and thus flexible) to it. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SCOA-P Wheel
SCOA-P pattern wheels are a type of steam locomotive wheel. Rather than having traditional solid spokes, the SCOA-P spoke is hollow, with a 'U' shaped cross section. They are considerably lighter than a conventional spoked wheel or Boxpok wheel of the same size and strength. History SCOA-P wheels were developed in the late 1940s by the Steel Company of Australia Ltd (the P in the acronym standing for F. C. Paynter, who patented the design) in response to Victorian Railways experiencing fatigue problems with conventional spoked wheels. Stronger Boxpok type 'B' wheels had been installed on a number of VR locomotive classes in the late 1940s, but they had the disadvantage of being relatively heavy and also restricted maintenance access to axleboxes, underslung springs, and in some cases boiler washout plugs. Boxpok wheels were proposed for the forthcoming Victorian Railways R class 4-6-4, which had a relatively heavy axle load, but it had been discovered that the use of a Boxpok ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 12
The British Rail Class 12 is a diesel locomotive built primarily for shunting duties around London. History This was the second batch of Southern Railway shunters based on the English Electric 6KT 350 hp (260 kW) diesel engine. The first experimental batch (BR numbers 15201–15203) were designed by Richard Maunsell of the SR in 1937 and were later classified D3/12. These locomotives were Oliver Bulleid's development of Maunsell's original design, but were significantly lighter. They featured Bulleid's distinctive BFB wheels, and incorporated a number of details from the diesel-electric shunters produced by the London, Midland and Scottish Railway 1936–39. They were built at the BR Ashford Works over the period 1949–1952 and numbered 15211–15236. They later became Class 12, but no locomotives survived long enough to acquire Class 12 TOPS numbers. Technical details The diesel engine is an English Electric 6-cylinder, 4-stroke, 6KT and the traction motors ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SR Leader Class
The Leader was a class of experimental articulated steam locomotive, produced in the United Kingdom to the design of the innovative engineer Oliver Bulleid. The Leader was an attempt to extend the life of steam traction by eliminating many of the operational drawbacks associated with existing steam locomotives. It was intended as a replacement for the ageing fleet of M7 class tank engines still in operation on the Southern Railway (SR). Design work began in 1946 and development continued after the nationalisation of the railways in 1948, under the auspices of British Railways (BR). The Leader project was part of Bulleid's desire to modernise the steam locomotive based on experience gained with the Southern Railway's fleet of electric stock. Bulleid considered that attitudes towards the labour-intensity of steam operation had changed during the post-war period, favouring dieselisation and electrification. In an effort to demonstrate the continued potential of steam, Bulleid pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SR Battle Of Britain Class
The SR West Country and Battle of Britain classes, collectively known as ''Light Pacifics'' or informally as ''Spam Cans'', are air-smoothed 4-6-2 ''Pacific'' steam locomotives designed for the Southern Railway by its Chief Mechanical Engineer Oliver Bulleid. Incorporating a number of new developments in British steam locomotive technology, they were amongst the first British designs to use welding in the construction process, and to use steel fireboxes, which meant that components could be more easily constructed under wartime austerity and post-war economy.Arlett (1989), p. 29–30 They were designed to be lighter in weight than their sister locomotives, the Merchant Navy class, to permit use on a wider variety of routes, including in the south-west of England and the Kent coast. They were a mixed-traffic design, being equally adept at hauling passenger and freight trains, and were used on all types of services, frequently far below their capabilities. A total of 110&nbs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SR West Country Class
The SR West Country and Battle of Britain classes, collectively known as ''Light Pacifics'' or informally as ''Spam Cans'', are streamliner, air-smoothed 4-6-2, 4-6-2 ''Pacific'' steam locomotives designed for the Southern Railway (UK), Southern Railway by its Chief Mechanical Engineer Oliver Bulleid. Incorporating a number of new developments in British steam locomotive technology, they were amongst the first British designs to use welding in the construction process, and to use steel Firebox (steam engine), fireboxes, which meant that components could be more easily constructed under wartime austerity and post-war economy.Arlett (1989), p. 29–30 They were designed to be lighter in weight than their sister locomotives, the SR Merchant Navy class, Merchant Navy class, to permit use on a wider variety of routes, including in the south-west of England and the Kent coast. They were a Mixed-traffic locomotive, mixed-traffic design, being equally adept at hauling passenger and frei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Railway (UK)
The Southern Railway (SR), sometimes shortened to 'Southern', was a British railway company established in the 1923 Grouping. It linked London with the Channel ports, South West England, South coast resorts and Kent. The railway was formed by the amalgamation of several smaller railway companies, the largest of which were the London and South Western Railway (LSWR), the London, Brighton and South Coast Railway (LB&SCR) and the South Eastern and Chatham Railway (SE&CR).Bonavia (1987) pp. 26-28 The construction of what was to become the Southern Railway began in 1838 with the opening of the London and Southampton Railway, which was renamed the London & South Western Railway. The railway was noted for its astute use of public relations and a coherent management structure headed by Sir Herbert Walker. At , the Southern Railway was the smallest of the '' Big Four'' railway companies and, unlike the others, the majority of its revenue came from passenger traffic rather than freight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Britain "West Country" Class 34053 Sir Keith Park (8688853901)
A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force commitment. An engagement with only limited commitment between the forces and without decisive results is sometimes called a skirmish. The word "battle" can also be used infrequently to refer to an entire operational campaign, although this usage greatly diverges from its conventional or customary meaning. Generally, the word "battle" is used for such campaigns if referring to a protracted combat encounter in which either one or both of the combatants had the same methods, resources, and strategic objectives throughout the encounter. Some prominent examples of this would be the Battle of the Atlantic, Battle of Britain, and Battle of Stalingrad, all in World War II. Wars and military campaigns are guided by military strategy, whereas bat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
