B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
74/261
B65G 23/44 (2006.01) F16H 7/14 (2006.01)
Patent
CA 1138683
ABSTRACT A constant-tension spring device for the accessory belt of an automobile engine. The device includes a cylinder having an elastomer ring mounted within each of its ends. A rod passes through each elastomer ring, the rod having spaced shoulders each bearing against one end of a respective elastomer ring. Abutments within the cylinder position and retain the elastomer rings. Upon sufficient axial motion between the rod and cylinder, the elastomer rings are distorted by twisting and display a flat segment of the load vs. deflection curve between the rod and cylinder. The spring device maintains a desired tension within the accessory belt, compensating for temperature, humidity, and ageing changes in belt length which would otherwise result in change of belt tension.
367673
Egan Herbert W.
George Larry T.
Swabey Ogilvy Renault
Wallace Murray Corporation
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