Conveyor safety device

Details Conveyor safety device Conveyor safety device

1974-12-05

1976-04-27

Spar, Robert J.

Conveyors: power-driven

Conveyor system for arranging or rearranging stream of items

By laterally or vertically moving successive items in...

B65G 4300

Patent

active

039528642

ABSTRACT:
A detector unit for mounting on conveyors for automatic shut off of the drive portion of the conveyor which includes a detection and control device attachable to the tail or idler sprocket of the conveyor such that if the tail sprocket is moved forwardly, the detector will trip a switching control mechanism to shut down the drive portion of the conveyor and further, if the chain should break, the detector is provided with an automatic return mechanism to trip the switching control mechanism to again shut down the drive portion of the conveyor. The detector basically includes a movable tail sprocket assembly having a first range of adjustable movement and having a detector arranged to move with the sprocket over the adjustable range of movement such that when the sprocket is shifted beyond this adjustable movement area the switching control mechanism will be tripped to shut off the driving portion of the conveyor.

REFERENCES:
patent: 1717359 (1929-06-01), Aldrich
patent: 2600273 (1952-06-01), Seifried
patent: 3066789 (1962-12-01), Schmeck et al.
patent: 3419127 (1968-12-01), Yost
patent: 3757925 (1973-09-01), Luther

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