Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Guide roll mounted for movement of its axis along arcuate...
Patent
1988-06-09
1989-08-29
Pekar, John A.
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Guide roll mounted for movement of its axis along arcuate...
474111, F16H 708
Patent
active
048613215
ABSTRACT:
An assembly comprising a pulley sub assembly and a shift sub assembly. The pulley sub assembly includes a plurality of pulleys, each pulley includes a plurality of sections, and at least one section of each pulley is axially moveable. The shift sub assembly has a disengaged position to maintain the pulleys in normal positions, and an engaged position. With one embodiment, when the shift sub-assembly is in the engaged position, it slides a section of a first pulley from the plane thereof, into the plane of a second pulley, and then back into the plane of the first pulley. With an alternate embodiment, when the first sub-assembly is in the engaged position, it slides all of the sections of a pulley, one at a time, into the plane of another pulley.
REFERENCES:
patent: 946735 (1910-01-01), Richards
patent: 2117116 (1938-05-01), Page
patent: 2382740 (1945-08-01), Noffsinger
patent: 2451690 (1948-10-01), Oehler
patent: 4111064 (1978-09-01), Purcell
patent: 4127038 (1978-11-01), Browning
patent: 4580997 (1986-04-01), Browning
patent: 4592738 (1986-06-01), Nagano
Pekar John A.
Research Corporation Technologies Inc.
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