1940-01-01

Power Transmissions for Buses 400125

CURRENT production transmission designs offered by the world's eight leading bus manufacturers are reviewed in this paper. It includes illustrations and brief descriptions of the following: electrical propulsion; semi-automatic planetary transmissions; fluid flywheels; hydraulic transmissions with both manual and automatic controls; synchromesh transmissions; transmissions other than synchromesh, automatic or semiautomatic; and methods of providing drive between transmissions and rear axles for American vehicles with transversely mounted rear and underfloor engines.
The discussion is restricted to transit-type buses since vehicles with engines out in front under any form of hood are, in so far as concerns American practice, practically extinct.
The paper is largely a review of current American practices, and it is believed that the explanatory data, together with the illustrations, will permit those interested to compare readily the different methods employed.

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