B - Operations – Transporting – 66 – D
Patent
B - Operations, Transporting
66
D
254/70
B66D 3/04 (2006.01) B66D 1/74 (2006.01)
Patent
CA 1105920
ABSTRACT OF THE DISCLOSURE In this cable hoisting apparatus at least two pulleys disposed in a common plane have the one a semi-circular-sectioned groove and the other a V-shaped groove section, the first pulley receiving the load and the other pulley being responsive to the tightening mechanism controlled by the load. Thus, the pulley having a semi-circular sectioned groove will not damage the cable and the cable is retained therein by adherence, thus reducing as much the load exerted on the cable section engaging the second pulley, whereby a lesser retaining effort is exerted on this second pulley , when a presser mechanism is provided for tensioning the cable in proportion to the load, said mechanism is associated with the pulley having the V-shaped groove.
334222
Robic Robic & Associes/associates
Tractel S.a.
LandOfFree
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