Adjustable length universal tuning knob for T.V. receiver
OwnerRobert C. Sickmeninventor
Life of this patent
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Abstract
A universal television tuner knob is comprised of four simple readily assembled parts only one of which must be made of different sizes; the parts comprising a tuning shaft engageable sleeve, a channel indicator disc adapted to be mounted on said sleeve, finger manipulatable means formed integrally with the sleeve and means carried on said sleeve to engage the channel indicating disc in any one of thirteen angular positions whereby the disc may be positioned relative to the tuner shaft so that the indicator disc will properly indicate the channel on which the tuner is fixed.
Claims1
A control knob including means for indicating the position of a control shaft such as a television tuner, said knob comprising a sleeve and a base plate assembly including a base plate, said base plate being non-rotatably attached to said sleeve and concentric therewith;
- an indicator disc having position designating means inscribed thereon, said disc having a central aperture adapted to receive and slide along said sleeve to permit said disc to abut said base plate;
- a finger operable tongue attached to said base plate and projecting outwardly from said base plate in a direction opposite to that in which said sleeve projects;
- a projection extending outwardly from said base plate in the same direction as and parallel to said sleeve, said indicator disc having a plurality of angularly spaced apertures, any one of which is selectively engageable with said projection, said projection and said apertures constituting means for inter-engaging said indicator disc and said base plate only when said disc abuts against the base plate whereby said indicator disc may be rotated to a selected position with respect to said sleeve prior to its abutment with said base plate;
- and means engageable with said sleeve to retain said disc in abutment with said base plate, and said sleeve having weakened areas spaced axially therealong to facilitate breaking off and removal of portions thereof to selectively adjust the length thereof.
Dependencies are inferred from the claim text.