Metal working – Method of mechanical manufacture – Electrical device making
Patent
1987-09-08
1989-02-21
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
310129, H02K 1509
Patent
active
048052957
ABSTRACT:
A method of winding an armature for a rotary converter for converting direct current to alternating current. The rotary converter includes a rotor and a stator. The rotor includes a shaft, a commutator concentric with the shaft, and an armature core concentric with the shaft and adjacent the commutator, the core having slots in its outer circumference parallel to the axis of the shaft. At least one slip ring is mounted on the shaft adjacent the armature core. A first or direct current winding is electrically connected to the commutator and wound in a wave pattern through the armature core slots. A second or alternating current winding is electrically connected to at least one slip ring and wound in a series of alternating clockwise and counterclockwise loops throuth the armature core slots. The rotary converter is particularly suitable for operation from a standard twelve volt battery to supply alternating current at a desired rating to electric tools and the like.
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Catalog Sheet No. RC-182, Kato Engineering Company, Mankato, Minnesota, Division of Reliance Electric Co.
Puchstein, A., T. Lloyd and A. Conrad, Alternating Current Machines, Chapter 44 (3rd ed., 1954), published by John Wiley & Sons, Inc. New York.
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