Electromagnetic counters

Details Electromagnetic counters Electromagnetic counters

1979-02-08

1981-02-10

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92C, G06M 312

Patent

active

042504040

ABSTRACT:
The counter is provided with a plurality of digit wheels, the first order digit wheel thereof having a star wheel on one side, a plurality of pinions for effecting carries of the digit wheels, a pair of pawls driven by a driving member for alternately engaging the pawls with the star wheel, an electromagnetic driving device for driving the star wheel through the driving member, and a control member including cam members for preventing the tilting of the driving member when an external shock or vibration is applied to the counter tending to swing the driving member thus causing the misoperation of the star wheel.

REFERENCES:
patent: 3619577 (1971-11-01), Hoffman
patent: 3761015 (1973-09-01), Cook
patent: 4031361 (1977-06-01), Moll et al.

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