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Sunbeam S7 And S8
The Sunbeam S7 and S8 are British motorcycles designed by Erling Poppe with styling loosely based on the BMW R75 designs that were acquired as war reparations by BSA (full rights to the Sunbeam brand had been acquired from AMC in 1943). Built in Redditch, the unusual engine layout was similar to that of a car. The engine was a longitudinally mounted inline vertical OHC 500 cc twin based on an experimental 1932 BSA design (the Line-Ahead-Twin - LAT) with coil ignition and wet sump lubrication which, through a dry clutch, drove a shaft drive to the rear wheel. The inline engine made this technologically feasible—horizontally-opposed ("flat") twin engines on BMW motorcycles had already used shaft drives following the system employed by the four cylinder Nimbus since 1918. The early S7 was expensive and over engineered, which is why it is now the most sought-after and commands a premium over the S7 De Luxe and the S8, which were produced with fewer features to reduce costs, whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunbeam Cycles
Sunbeam Cycles made by John Marston Limited of Wolverhampton was a British brand of bicycles and, from 1912 to 1956 motorcycles. On John Marston (businessman), John Marston's death after the First World War it was bought by Nobel Industries (Scotland), Nobel Industries, Nobel became Imperial Chemical Industries, ICI. Associated Motor Cycles bought it in 1937; then, Birmingham Small Arms Company, BSA bought Sunbeam in 1943. Sunbeam Cycles is most famous for its Sunbeam S7 and S8, S7 balloon-tyred shaft-drive motorcycle with an overhead valve engine, overhead valve straight-twin engine, in-line twin engine. History Sunbeam Cycles was founded by John Marston (Industrialist), John Marston, who was born in Ludlow, Shropshire, UK in 1836 of a minor landowning family. In 1851, aged 15, he was sent to Wolverhampton to be apprenticed to Edward Perry as a Japanning, japanware manufacturer. At the age of 23 he left and set up his own japanning business making any and every sort of domest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bevel Gear
Bevel gears are gears where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped. Bevel gears are most often mounted on shafts that are 90 degrees apart, but can be designed to work at other angles as well. The pitch surface of bevel gears is a cone, known as a pitch cone. Bevel gears transfer the energy from linear to vertical power, making it very useful in machines widely used in mechanical settings. Introduction Two important concepts in gearing are pitch surface and pitch angle. The pitch surface of a gear is the imaginary toothless surface that you would have by averaging out the peaks and valleys of the individual teeth. The pitch surface of an ordinary gear is the shape of a cylinder. The pitch angle of a gear is the angle between the face of the pitch surface and the axis. The most familiar kinds of bevel gears have pitch angles of less than 90 degrees and therefore are cone-shaped. This type of bevel ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunbeam Motorcycles
A sunbeam, in meteorological optics, is a beam of sunlight that appears to radiate from the position of the Sun. Shining through openings in clouds or between other objects such as mountains and buildings, these beams of particle-scattered sunlight are essentially parallel shafts separated by darker shadowed volumes. Their apparent convergence in the sky is a visual illusion from linear perspective. The same illusion causes the apparent convergence of parallel lines on a long straight road or hallway at a distant vanishing point. The scattering particles that make sunlight visible may be air molecules or particulates. Crepuscular rays ''Crepuscular rays'' or ''god rays'' are sunbeams that originate when the sun is just below the horizon, during twilight hours. Crepuscular rays are noticeable when the contrast between light and dark is most obvious. Crepuscular comes from the Latin word "crepusculum", meaning twilight. Crepuscular rays usually appear orange because the path ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaft Drive Motorcycles
Shaft may refer to: Rotating machine elements * Shaft (mechanical engineering), a rotating machine element used to transmit power * Line shaft, a power transmission system * Drive shaft, a shaft for transferring torque * Axle, a shaft around which one or more wheels rotate Vertical narrow passages * Elevator shaft, a vertical passage housing a lift or elevator * Ventilation shaft, a vertical passage used in mines and tunnels to move fresh air underground, and to remove stale air * Shaft (civil engineering), an underground vertical or inclined passageway * Pitch (ascent/descent), a significant underground vertical space in caving terminology * Shaft mining, the method of excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom * Shafting, illicit travelling through shafts Long narrow rigid bodies * The body of a column, or the column itself * Handle (grip) of hand-tools * Shaft (golf), the long, tapered tube which c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Motorcycles Of The 1950s
This a listing of motorcycles of the 1950s, including those on sale, introduced, or otherwise relevant in this period. *AJS 18 (1949-1963)Total Bike Classics (accessed 2016-04-23) * AJS Model 31 * Ariel Leader * BMW R24 * BMW R25 * BMW R25/2 * BMW R25/3 * [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
