Telegraphy – Systems – Printing
Patent
1975-04-11
1976-10-26
Britton, Howard W.
Telegraphy
Systems
Printing
74 10A, 74 1015, 178DIG15, 192142A, 200 6101, 325393, 334 10, H03J 122, G05G 110, F16C 116
Patent
active
039886808
ABSTRACT:
A remote television control includes a hollow floating knob which is engaged on the television tuner shaft. Inside the knob is a torque-applying mechanism such as a unidirectional clutch or ratchet for imparting torque to the tuner shaft. A flexible coaxial force applying means extend between the torque-applying mechanism and a control including a solenoid which is actuated by means of an acoustical switch tuned to respond to an acoustical signal of a selected frequency emitted by a remote source. When the solenoid is actuated, it moves the force applying means which, in turn, reacts against the knob and activates the torque-applying mechanism inside the knob so that the tuner is rotated to change the channel of the television receiver. The control also includes a switch which is actuated when the knob is indexed to an unused channel position in order to turn the televison set off. Alternatively, the television set is turned on or off independently of the channel position of the tuner.
REFERENCES:
patent: 2755424 (1956-07-01), Papitto
patent: 2769344 (1956-11-01), Block
patent: 2816259 (1957-12-01), Papitto
patent: 2907217 (1959-10-01), Siegel
patent: 3115589 (1963-12-01), Bender
patent: 3325593 (1967-06-01), Platt
patent: 3412620 (1968-11-01), Bloom
patent: 3854123 (1974-12-01), Banach
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