Cable drive device

Details Cable drive device Cable drive device

B - Operations, Transporting

61

B

104/39, 254/47

B61B 11/00 (2006.01) B61B 12/10 (2006.01)

Patent

CA 1096368

-17- "CABLE DRIVE DEVICE" ABSTRACT OF THE DISCLOSURE This is a drive device for stationary cables, chains and the like and may be used for example, as a ferry winch drive. The drive unit surrounds the stationary cable and consists of a cage carrying upper and lower skate assemblies around which freely rotating endless roller assemblies are engaged. Endless upper and lower drive chains are rotated by a source of power and these drive chain assemblies include cable engaging dies which engage around the cable. The skate assemblies are pulled together hydraulically so that the dies squeeze and grip the cable thus pulling the drive device and the attached unit such as a ferry, along the cable. The dies are preferably formed from steel with an elastomeric material bonded thereto and the shape of the dies causes opposing dies to surround the cable giving a good grip thereto. The hy- draulic system is such that as the torque of the hydraulic motor increases, the grip of the dies also increases.

325414

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