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The Nimbus is a Danish motorcycle produced from 1919 to 1959 by Fisker and Nielsen of Copenhagen, Denmark, also manufacturers of "Nilfisk" brand vacuum cleaners (now Nilfisk). Three basic models were produced, all with a 750 cc four-cylinder, air-cooled in-line engine.
It is based on the Nimbus-2 (not 2b) but the wing is 15 cm further aft on the fuselage to make up for the C of G shift induced by the weight of the engine (7 built) Skopil Nimbus II-S Motorglider conversion done by Arnold Skopil of Aberdeen, Washington , United States using a Nelson H-63 engine of 45 hp (34 kW).
Autocycle or auto-cycle may refer to: Motorized bicycle, a bicycle with an attached motor; moped, a type of small motorcycle; three-wheeled car, a registration classification in the US for some three wheeled vehicles; with a sit-in cockpit and steering wheel
The original Servi-Cycle design had the engine drive the rear wheel by belt, with no transmission or clutch, requiring the engine to be shut off while the cycle is at rest. [8] In 1941, a pedal-operated clutch was added. [10] By 1950, Simplex added a belt-type automatic transmission.
A directly solar-powered rickshaw is an electric auto rickshaw driven solely by one or more electric motors, powered by solar panels mounted on the vehicle and capable of operating while the vehicle is in motion. Theoretically, solar panels could provide power directly to the motor(s) without the need for batteries, but in reality, this would ...
The electric-pump-fed engine is a bipropellant rocket engine in which the fuel pumps are electrically powered, and so all of the input propellant is directly burned in the main combustion chamber, and none is diverted to drive the pumps. This differs from traditional rocket engine designs, in which the pumps are driven by a portion of the input ...
As of 2009, one system was commercially available from a major parts manufacturer: Shimano's Di2 (Dura-Ace 7970) for road bicycles. While the traditional method of gear shifting uses mechanical control levers that pull and release Bowden cables and spring-loaded derailleurs, Di2 is controlled by electronic switches located either in the ...
William Bown was an enthusiastic experimenter with a keen eye for marketable ideas. He is known to have registered over 14 patents. Owning a patent for the famous Aeolus ball bearing amongst other products, the company was able to earn substantial royalties in addition to sales from their own manufactured products.