Safety cut-out devices

Details Safety cut-out devices Safety cut-out devices

1976-12-03

1980-01-01

Scott, James R.

Electricity: circuit makers and breakers

Multiple circuit control

Operating means

200153L, H01H 300

Patent

active

041818288

ABSTRACT:
A cut-out device, particularly applicable to mining machines, especially gate end machines where the close proximity to personnel in confined spaces gives rise to risk of injury of a very serious nature and even death, comprises a housing associated with a switch or valve and a plunger mounted in the housing in such a manner that movement in any direction of a push-rod projecting from the housing results in movement of the plunger to operate the switch or valve to stop operation of the machine, and two such cut-out devices spaced along one side of a machine may have a trip bar connecting their push-rods so as to widen the extent of protection.

REFERENCES:
patent: 3308675 (1967-03-01), Jonsson
patent: 3666900 (1972-05-01), Rothweiler et al.
patent: 3818154 (1974-06-01), Presentey
patent: 3827313 (1974-08-01), Kiessling
patent: 3828148 (1974-08-01), Roeser
patent: 3872601 (1975-03-01), Burgin

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