Programmable timer

Details Programmable timer Programmable timer

1978-01-24

1979-10-16

Scott, James R.

Electricity: circuit makers and breakers

Retarded

Clock train

200 38FB, H01H 4300

Patent

active

041714717

ABSTRACT:
A programmable timer for selectively controlling the operation of a lamp or the like comprises a housing having a face plate with a plurality of movable buttons and engaging slots arrayed in a circle. A motor-driven shaft includes a cammed switching mechanism for engaging a spring contact switch. A spring biased bell crank activated by a selected button cams a lever operating the switch mechanism. A separate cam lever is provided to selectively override the automatic feature of the switch. The timer has a plug for a power source and a plug receptacle for receiving a lamp or other electrical device controlled by the cam-operated switch of the timer.

REFERENCES:
patent: 2623132 (1952-12-01), Everard
patent: 2806910 (1957-09-01), James, Jr.
patent: 2816184 (1957-12-01), Manning et al.
patent: 3032618 (1962-05-01), Johnson
patent: 3997742 (1976-12-01), Marquis
patent: 4130748 (1978-12-01), Schwer

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