Free trolley for power and free conveyors

Details Free trolley for power and free conveyors Free trolley for power and free conveyors

1997-08-28

1998-12-29

Le, Mark Tuan

Railways

Traction

Chain

1041723, B61B 1000

Patent

active

058529799

ABSTRACT:
A power and free conveyor system is provided which utilizes a difference in height between the wipe in power trolley and the wipe out power trolley, with or without a camming down of a retractable wide dog of the free trolley, to allow the wipe in power chain to wipe in over the retractable dog without any possibility of lateral interference. Thereafter the elevation of the wipe in power trolley and the wipe out power trolley are the same. Improved stop means operating to push down the retractable dog and therefore cause disengagement of the retractable dog from the power chain dog are also provided.

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