Conveyor anti-runaway apparatus

Details Conveyor anti-runaway apparatus Conveyor anti-runaway apparatus

1991-01-14

1992-01-28

Valenza, Joseph E.

Conveyors: power-driven

With alarm or indicator

Means responsive to conveyor movement to indicate speed or...

1988323, 104249, B65G 4300

Patent

active

050836560

ABSTRACT:
A conveyor anti-runaway apparatus is provided for a conveyor of the type driven by an electric motor connected to a source of electrical power. The anti-runaway apparatus includes a switch tripping device having a tripping arm structure which is periodically bumped by conveyor wheel structure and which is caused to pivot into a switch opening position when the conveyor speed is unacceptably high. The tripping arm structure also functions as a blocking element to prevent conveyor movement. Jackscrew structure is provided to permit rapid disengagement of the tripping arm structure to facilitate restart of the conveyor. A second switch is provided to prevent conveyor restart until the switch tripping device is repositioned in its operative relationship to the conveyor.

REFERENCES:
patent: 3149715 (1964-09-01), Massimiani
patent: 3948187 (1976-04-01), Moore

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