Shutoff control apparatus for a conveyor

Details Shutoff control apparatus for a conveyor Shutoff control apparatus for a conveyor

1977-01-07

1977-12-13

Blunk, Evon C.

Conveyors: power-driven

With alarm or indicator

Means for measuring dimensions of load on a conveyor

198856, B65G 4300

Patent

active

040624420

ABSTRACT:
A shutoff control apparatus is incorporated into a feed station where material is loaded onto a belt conveyor. The feed run of a conveyor belt is supported by interconnected roller assemblies forming a trough-shaped roller support at each of a plurality of spaced-apart locations where the roller supports are swingably carried by a stationary frame. A horizontally-arranged rectangular frame is supported by leaf springs within the stationary frame at a closely-spaced relation below the belt supporting roller assemblies. Plate members project upwardly from the rectangular frame to extend between the roller assemblies. A drive motor for the conveyor belt responds to a shutoff control switch which is actuated in response to movement by the rectangular frame. The frame moves when a sharp-edged object penetrates the conveyor belt and establishes a driving relation between the belt and one of the plate members together with a roller assembly. Means are provided for adjustably positioning the plate members and the movable frame within the stationary frame at the feed station.

REFERENCES:
patent: 2883035 (1959-04-01), Erisman
patent: 3608703 (1970-04-01), Hitchcock et al.
patent: 3680686 (1972-08-01), Ciesielski

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