Selectably positionable rotary transducers

Details Selectably positionable rotary transducers Selectably positionable rotary transducers

1980-08-15

1982-11-09

Grimley, A. T.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310156, 101110, 101 9322, 4001442, 318659, H02K 2400, B41J 160

Patent

active

043586945

ABSTRACT:
A selectably positionable rotary transducer including a first member having at least one permanent magnet associated therewith and a second member arranged for rotational motion relative to the first member in a first plane, the second member defining an odd number of poles and associated apparatus for selectively providing a magnetic force of selected polarities to individual ones of the poles to cause the first member to assume selectable positions with respect to the second member. Numbering apparatus preferably having an odd number of poles is also described.

REFERENCES:
patent: 2736827 (1956-02-01), Buchmann
patent: 3350709 (1967-10-01), Pursiano et al.
patent: 3470509 (1969-09-01), Silverman et al.
patent: 4137491 (1979-01-01), Bartley et al.
EEN: "AC Stepping Motors for Incremental Control", H. Hays, Electronic Equipment News, vol. 12, No. 10, Jan. 71, pp. 10-18.
IBM: Branson et al., "Character Wheel for Low-Cost Changeable Font Printer", IBM Tech. Disclosure Bull., vol. 16, No. 5, Oct. '73, p. 1515.

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