Position indicating device

Details Position indicating device Position indicating device

1974-04-17

1976-02-10

Safourek, Benedict V.

Telegraphy

Systems

Simplex-reversing periodic

325455, 334 87, H04N 316

Patent

active

039378772

ABSTRACT:
A TV channel indicator wherein the tuner shaft carries a program disc having a plurality of cam sticks, each of which has a cam surface corresponding to a respective channel. There is a panel of leaf switches which play against the cam surfaces to close the switches in a manner dictated by the cam surface configuration, thereby selectively energizing the segments of a seven-segment numerical display to provide illuminated channel numbers corresponding to the tuner shaft position. Tuning of the tuner shaft brings the cam surfaces into registration with the switch ends.

REFERENCES:
patent: 3204051 (1965-03-01), Blodgett
patent: 3632912 (1972-01-01), Schuenke
patent: 3671869 (1972-06-01), Wolfram

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