Machine element or mechanism – Mechanical movements – Rotary to rotary
Patent
1985-04-08
1986-08-12
Staab, Lawrence
Machine element or mechanism
Mechanical movements
Rotary to rotary
123245, 418 38, F02B 5300, F04C 200, F16H 3502
Patent
active
046049096
ABSTRACT:
Two shafts rotatable about the same axis and having hubs are connected to each other by a transverse beam. One end of the beam is pivotally connected to one hub and the other end of the beam is pivotally connected to the other hub. Two roller followers are mounted to the beam with one follower located on each side of the beam's mid-point. The followers are guided by the interior surface of a closed path guide cam. In operation, the beam first pivots about the axis of one follower and then pivots about the axis of the other follower in a repetitive alternating sequence. For a given hub, the distance between the beam's pivot point and the hub connection changes each time the pivot point moves from one follower axis to the other. This causes one hub to alternately rotate at speeds which are relatively faster than, and then relatively slower than, the rotational speed of the other hub.
REFERENCES:
patent: 2649080 (1953-08-01), Mallinckrodt
patent: 2851998 (1958-09-01), Mallinckrodt
patent: 3835717 (1974-09-01), Rudolph
patent: 4413961 (1983-11-01), Griffin
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