US PATENT SUBCLASS 322 / 92
.~.~.~ By auxiliary brushes diametrically opposed or 180 electrical degrees apart

Current as of: June, 1999
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322 /   HD   ELECTRICITY: SINGLE GENERATOR SYSTEMS

44  DF  GENERATOR CONTROL {11}
89  DF  .~ With armature or primary circuit control {5}
91  DF  .~.~ Short-circuiting of windings {1}
92.~.~.~ By auxiliary brushes diametrically opposed or 180 electrical degrees apart

DEFINITION

Classification: 322/92

(under subclass 91) Subject matter wherein the generator is provided with a set of auxiliary brushes spaced 180 electrical degrees apart in addition to the usual load circuit brushes and the short circuit connection is between the auxiliary brushes.

(1) Note. The usual purpose of the above arrangement is to increase armature reaction flux which produces a field in quadrature to the flux produced by the field windings. These devices are called "cross-field generators" in the art. These devices find application for such uses as constant current welding generators and as dynamoelectric amplifier devices.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53, if the generator is provided with an odd or auxiliary brush, and the armature winding or a portion thereof is connected to a short circuit between the odd or auxiliary brush and one of the main brushes.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, 151, for dynamoelectric machines having a pair of additional short circuited brushes.

330, Amplifiers,

58, for amplifiers whose active element is a rotating dynamoelectric machine.