Switch mechanism for simple phonograph

Details Switch mechanism for simple phonograph Switch mechanism for simple phonograph

1976-05-19

1978-08-15

Scott, James R.

Electricity: circuit makers and breakers

Special application

200DIG34, 274 1A, 274 9R, H01H 3500, G11B 300, H01H 300

Patent

active

041074890

ABSTRACT:
A switch mechanism for a phonograph disposed in an openable and closable casing having a movable contact piece and a pivotally movable pick-up bracket. The contact piece, which is in electrical communication with a source of power, is moved by a pivotally movable pick-up bracket to break the electrical circuit. The switch mechanism, also, includes a switch actuator which pushes the contact piece from the same direction as the pick-up bracket. A pawl is mounted onto the casing and is movable therewithin. When the casing is closed, the pawl pushes the switch actuator away from the contact piece to permit the circuit to be closed.

REFERENCES:
patent: 2300209 (1942-10-01), DeTar
patent: 2458623 (1949-01-01), Mortimer
patent: 3035141 (1962-05-01), Goral
patent: 3467393 (1969-09-01), Kuwayama
patent: 3633923 (1972-01-01), Watanabe
patent: 3773331 (1973-11-01), Watanabe
patent: 3823946 (1974-07-01), Nakajima

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