1946-01-01

AUTOMATIC and SEMIAUTOMATIC TRANSMISSIONS 460235

AN automatic or power shifted transmission can be designed, the author believes, with the aid of available manufacturing techniques and a fundamentally sound arrangement of known mechanical combinations.
Such a transmission, the author says, will upshift or downshift while under full torque load and without necessity of overlapping clutches and without breaking the drive line.
Mr. Greenlee considers such a transmission essential on trucks and heavy-duty equipment where shifting with heavy loads at low momentum interferes with present types of such transportation. He also sees a marked trend toward this type of transmission as a basic passenger-car requirement.

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