Strip material outer turn proximity switch detection apparatus

Details Strip material outer turn proximity switch detection apparatus Strip material outer turn proximity switch detection apparatus

1981-09-09

1983-08-30

Scott, James R.

Electricity: circuit makers and breakers

Special application

Running length, web or strand actuated

200 6116, 200 6118, B65H 2514

Patent

active

044018657

ABSTRACT:
When it is necessary to detect the position of the end of the outer turn of a coil of strip material, the coil is rotatably supported with its axis substantially horizontal and apparatus for detecting the end comprises a detector assembly including a proximity switch and a projection extending beyond the switch and support means for the assembly such that the proximity switch is spaced from the outer surface of the coil and with the projection nearer to the coil than is the switch and the projection is upstream of the switch with reference to the non-paying out direction of rotation of the coil. When the end of the turn passes from beneath the projection, the switch is actuated.

REFERENCES:
patent: 3253269 (1966-05-01), Ratti
patent: 3462568 (1969-08-01), Smith
patent: 3684845 (1972-08-01), Palmer
patent: 3763483 (1973-10-01), Urmenyi

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