Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1974-09-24
1976-05-25
Envall, Jr., R. N.
Electrical generator or motor structure
Dynamoelectric
Rotary
235 92A, 317140, H02K 3700
Patent
active
039596745
ABSTRACT:
The pulse counter device has a wheel with magnetic poles arranged regularly over its periphery. An element magnetisable by means of a coil is arranged to receive, at its terminals, signals representing pulses to be counted, these signals being adapted to take first and second values. The magnetisable element cooperates with the poles of the pole wheel so as to cause this wheel to rotate through a certain first angle, in a given direction, when the signal applied to the terminals of the coil passes from the first to the second value, means for rotating said wheel through a certain second angle, in the said given direction, when the signal at the terminals of the coil passes from the second to the first value. Registering means for the pulses to be counted, are driven by the pole wheel so as to indicate the advance by one unit when said wheel has rotated in the given direction. The means for rotating the wheel through the second predetermined angle comprises elastic return means adapted to cause said wheel to turn through the second predetermined angle, in said given direction, when the signal applied to terminals of said coil passes from the second to the first value, the second predetermined angle being substantially greater than the first. The elastic return means may be a polygonal cam turning against spring strips.
REFERENCES:
patent: 2432600 (1947-12-01), Werner et al.
patent: 2795710 (1957-06-01), Busche
patent: 3626263 (1971-12-01), McBride
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