Supports: cabinet structure – For projector
Patent
1982-03-08
1984-08-14
McCall, James T.
Supports: cabinet structure
For projector
312 97, 312268, 206387, A21B 8106
Patent
active
044653271
ABSTRACT:
Successive, juxtaposed, outwardly extending, receiving cradles are arranged in a continuous belt by having at their proximal ends, link like bases which are connected together hingedly in tandem by their leading and trailing edges which form hinge members. Opposed wedged shaped, sidewise protruding trunnions extend from the proximal end plates of each cradle and these trunnions are received within laterally opposed, linear channels in the upstanding side panels of a support member. The channels thus confine the wedge shaped trunnions to form adjacent parallel upper and lower flights so that the cradles protrude upwardly generally parallel to each other in the upper flight and downwardly generally parallel to each other in the lower flight. The ends of the channels are sufficiently wide to accomodate the pivoting of the wedge shaped trunnions which permit the cradles to be advanced manually by the movement of an upper outer cradle in an arcuate path from the upper flight to the lower flight or movement of the lower outer cradle in an arcuate path from the lower to the upper flight. The wedge shaped trunnions form ratchets which restrict advancing the support member to one direction. Lugs on the cradles form hangers by which the cassette is retained in its cradle and the cassette cannot be removed except at the end of the flight.
REFERENCES:
patent: 2773727 (1956-12-01), Bradley
patent: 3442564 (1969-05-01), Gutting
patent: 4057305 (1977-11-01), Zdeblick
patent: 4119200 (1978-10-01), Cassidy et al.
patent: 4285557 (1981-08-01), Paladino et al.
patent: 4330161 (1982-05-01), Khawand
Falk Joseph
McCall James T.
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