Automatic brush shifting for a D.C. series motor

Details Automatic brush shifting for a D.C. series motor Automatic brush shifting for a D.C. series motor

1980-02-07

1981-12-29

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310229, 310230, 310244, H02K 1300

Patent

active

043084800

ABSTRACT:
Electromagnetic or solenoid means responsive to load current to automatically shift the brushes of a motor or generator a proper amount so as to maintain satisfactory commutation from light to full load, the brush shifting means including electric solenoid means carrying machine load current, movable brush holding means mounted on antifriction bearings, and mechanically connecting the electric solenoid means mounted on a machine frame means to brush holder means so as to shift brushes in conformity to changing load conditions.

REFERENCES:
patent: 831446 (1906-09-01), Latour
patent: 1164260 (1915-12-01), Creveling
patent: 1855281 (1932-04-01), Chilton
patent: 2128598 (1938-08-01), Williamson
patent: 2414523 (1947-01-01), Harding

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