Keyboard selector switch assembly for a calculating machine

Details Keyboard selector switch assembly for a calculating machine Keyboard selector switch assembly for a calculating machine

1976-04-22

1978-02-07

Scott, James R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200 16D, H01H 900, H01H 1500

Patent

active

040728331

ABSTRACT:
A selector for a keyboard of a calculating machine comprises a series of sliders for indicating information relevant to operations to be performed and a plurality of switches driven by the sliders for the entering of this information in the machine. The sliders are slidably mounted on a common support, in front of which there is mounted the support of a printed circuit. A series of movable contacts, carried by the sliders, are actuatable by the sliders to contact the fixed contacts for the input of the said information.

REFERENCES:
patent: 2453498 (1948-11-01), Crowley
patent: 3584163 (1971-06-01), White
patent: 3745270 (1973-07-01), Granitz
patent: 3800107 (1974-03-01), Heide
patent: 3934101 (1976-01-01), Jones

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