Expansible sprocket device

Details Expansible sprocket device Expansible sprocket device

1975-04-11

1976-11-30

Scott, Samuel

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74244, F16H 900, F16H 924, F16H 1102

Patent

active

039941809

ABSTRACT:
In a variable diameter driving sprocket for a chain drive change speed device comprising a plurality of circumferentially spaced radially movable toothed elements mounted on said driving sprocket over which the chain is threaded; a means to move the toothed elements radially which includes an adjusting gear or sprocket coaxial with said driving sprocket but free to rotate with respect to said driving sprocket, and differential means drivingly connecting said adjusting sprocket to said variable diameter driving sprocket.

REFERENCES:
patent: 724449 (1903-04-01), Dumaresq
patent: 3913410 (1975-10-01), Ackerman

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