Coding member for programming of a radio communication apparatus

Details Coding member for programming of a radio communication apparatus Coding member for programming of a radio communication apparatus

1976-10-27

1978-08-22

Britton, Howard W.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

200153L, 340347P, G08C 908, H01H 1963, H04B 106

Patent

active

041092074

ABSTRACT:
A disc shape rotatable coding member for programming of a radio communication apparatus. The coding member has notches or teeth around its periphery which cooperate with a detent and permit indexing selection of disc positions that are indicated by a number of radials, intersected by a number of imaginary circles, each forming a row of spaces, thus rendering intersection points between the radials and the circle. The intersection points may be provided with empty spaces without holes, empty space with threaded holes, permanent projections in the shape of pressed-up protrusions, or of semipermanent projections in the shape of screws placed in the threaded holes. These screws may be placed in such a way that the screw head forms the protrusion or in such a way that the threaded part of the screw forms the protrusion. The protrusions (permanent or semi-permanent) in each radial constitute a code and serve as contacts which cooperate with selected switch contacts to provide an electrical code condition which can be used to program a radio communication apparatus.

REFERENCES:
patent: 2257537 (1941-09-01), Samburg
patent: 3128909 (1964-04-01), Shield
patent: 4015253 (1977-03-01), Goldstein

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