Detent UHF tuner with preset memory

Details Detent UHF tuner with preset memory Detent UHF tuner with preset memory

1974-08-21

1976-11-09

Scott, Samuel

Machine element or mechanism

Shaft operators

Plural shafts

74 1041, 74 1080, 74 1085, 74 106, 334 2, F16H 3518

Patent

active

039903150

ABSTRACT:
A detent type tuning mechanism for a UHF tuner having a continuously variable tuning shaft includes a detented selector shaft, a gear train interconnecting the tuner shaft and the selector shaft, and a memory type fine tuning mechanism including a rotatable turret having mounted thereon a plurality of cams each engageable by a fine tuning shaft when the selector shaft is positioned in predetermined ones of the detent positions. Each cam serves as a memory fine tuning system for a predetermined group of adjacent UHF channels. A cam follower interconnects one of the cams and the tuning shaft, and serves to rotate the tuning shaft in response to the rotation of one of the cams by the fine tuning shaft. An indicator dial provides a numerical display of the precise UHF channel selected at each position of the detented selector shaft.

REFERENCES:
patent: 2981838 (1961-04-01), Poskozim
patent: 3090932 (1963-05-01), Torrence
patent: 3218589 (1965-11-01), Delp
patent: 3599497 (1971-08-01), Fukumitso
patent: 3689853 (1972-09-01), Badger et al.

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