1975-05-27
1976-09-21
Witkowski, Stanley J.
Registers
Rotation counters
235 1C, 235 95R, 235117R, 235144SP, G01C 2200, G06C 1542
Patent
active
039814416
ABSTRACT:
A counter comprises a body housing a set of discs which are freely rotatable on a sleeve and which have numerals on their peripheries. A series of drive plates are keyed to the sleeve and interleaved with the discs. At one end of the set of discs a spring-loaded collar also keyed to the sleeve urges the drive plates and discs into frictional engagement. The sleeve is rotatable with a reset wheel while the collar is driven by a star counting wheel through an orbital drive arrangement. The orbital drive arrangement may include a further collar having outwardly directed projections thereon which engage an abutment carried by a resilient arm, the abutment and projections restraining the further collar against rotation during counting. Each disc has a set of first abutments and a second abutment on its periphery. Spring blades engage the peripheries of the discs and have respective resilient stops thereon to engage the first abutments so as to oppose movement of the discs in a counting direction but to permit movement thereof in a reset direction. All the discs but one end disc are each provided with a resilient detent which is positioned in the path of movement of the second abutment. Each resilient detent is carried by the spring blade which mounts the resilient stop associated with an adjacent disc.
REFERENCES:
patent: 3824389 (1974-07-01), Walters
The Lucas Electrical Company Limited
Witkowski Stanley J.
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