A small 20 hp unit powered the gyroscopes, drove an air-compressor (for braking?) Restoration of Christ Church Bells Boston Massachu... Oscar Solomon Straus Secretary of Commerce and Labor. One wheel was at the front and the other at the rear like a motorcycle and the car was stabilized by gyroscopes. Shilovsky claimed his designs were actually lighter than the equivalent duo-rail vehicles. Tire balance, also called tire unbalance or tire imbalance, describes the distribution of mass within an automobile tire or the entire wheel on which it is mounted. This would not in itself stop tilting, as the torque is in the direction of steering rather than tilting. The contact side forces result in a gimbal deflection bias in a Shilovsky loop. With two rails and an ordinary steam locomotive, the practical limit of safe speed was reached years ago. ", A good account of Brennan's monorail endeavours, and his other projects, such as helicopters, is given in a PhD thesis by Michael Kitson: "The Brennan Torpedo, Monorail, and Helicopter" There is a copy in the Science Museum Library, London: Dewey number 623.93, A good book on Brennan and his inventions is "Louis Brennan, Inventor Extraordinaire" by Norman Tomilinson, published in 1980 by John Hallewell Publications. Hence, an estimate of the gyro mass for a 10 tonne vehicle, with cg height at 2m, assuming a peripheral speed of half what is used in jet engine design, is a mere 140 kg. The Brennan Gyro-Monorail was developed by the Irish-born Australian inventor Louis Brennan (1852–1932). This was vetoed by their Financial Department. 1900s, England, event & history, inventions, traffic & transport He is best known as the inventor of the gyrocar, which was built under his direction by the Wolseley Tool and Motorcar Company beginning in 1912, and was demonstrated for the first time in London in April 1914. After developing a model gyro monorail in 1911, he designed a gyrocar which was built by Wolseley Motors Limited and tested on the streets of London in 1913. It was 2ft 6in long, 12in wide, and 10in long, with the whole of the internal space being taken up by the gyroscopes, motors and accumulators. The vehicle was created for research and marketing purposes, with no intention to put it into production. However, an identical gyro spinning in the opposite sense will cancel the roll torque which is causing the instability, and if it is forced to precess in the opposite direction to the first gyro will produce a control torque in the same direction. It is shown here in a glass case at the National Railway Museum at York.
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