Safety guard for power operated machine

Details Safety guard for power operated machine Safety guard for power operated machine

1975-11-17

1977-11-29

Herrmann, Allan D.

192 clutches and power-stop control

Stop mechanism

Safety device

100 53, 192130, 200 6142, 200 6158R, F16D 7100, H01H 316

Patent

active

040601609

ABSTRACT:
A safety gate, made of electrically conducting and non-conducting materials, is mounted to the ram, or similar instrument, of a power operated machine and is made to be free floating in at least one direction. The means of powering the machine may be electrical, mechanical, hydraulic, or pneumatic; however, there must be an electrical source available. The gate contains a means of sensing the presence of the workpiece and foreign objects which is powered by the electrical source; this means is connected to the machine in such a manner that the machine will be caused to stop or reverse if a foreign object, such as a human extremity, is sensed. A stationary guard shields those danger areas on the machine not protected by the safety gate.

REFERENCES:
patent: 1684296 (1928-09-01), Brodsky
patent: 2315151 (1943-03-01), Booth
patent: 2400486 (1946-05-01), Carlyle
patent: 3333355 (1967-08-01), Tucker
patent: 3487182 (1969-12-01), Grundy

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