Safety lock for rotating machinery

Details Safety lock for rotating machinery Safety lock for rotating machinery

1982-09-03

1986-09-16

Smith, Gary L.

192 clutches and power-stop control

Stop mechanism

Safety device

192133, 292218, 292DIG65, F16H 2702, F16H 3100, E05C 304

Patent

active

046117032

ABSTRACT:
An apparatus for preventing the opening for one or more access doors to rotating machinery which is confined in some form of enclosure. A shaft from the machinery extends through the enclosure and has a disc attached to it. The disc has one or more radial holes drilled in the periphery to permit the entry of a release rod, but only when the machinery is stopped. The release rod is attached to a pivoted rod which is moved into and out of locking engagement with the doors when the release rod can enter the periphery hole. The pivotal rod contains two locks each for one or more doors. One lock prevents the door from being rotated toward the rod and the second lock prevents the door from being rotated away from the rod unless the pivotal rod is pivoted to release the locks.

REFERENCES:
patent: 631140 (1899-08-01), Ward et al.
patent: 639685 (1899-12-01), O'Connell
patent: 1546465 (1925-07-01), Baxter
patent: 3920110 (1975-11-01), Douglas
patent: 4098530 (1978-07-01), Edeus
patent: 4286810 (1981-09-01), Ehmen

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