Percentage timer

Details Percentage timer Percentage timer

1975-03-20

1976-06-22

Scott, James R.

Electricity: circuit makers and breakers

Retarded

Clock train

H01H 708, H01H 4310

Patent

active

039653129

ABSTRACT:
A continuous repeat cycle timer in which the on period is externally adjustable. The beginning of the on period is fixed, being started by a cam follower dropping into a notch in the periphery of a cam. The end of the on period is determined by axial movement of a second cam which releases a latch. The point of axial latch releasing movement is set by an adjusting cam which is rotatable by an external knob. The cam shaft for the operating cams extends through the knob and indicates the progress of the time cycle.

REFERENCES:
patent: 3699281 (1972-10-01), Harris

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