Sensing and control apparatus for a commutator

Details Sensing and control apparatus for a commutator Sensing and control apparatus for a commutator

1979-06-25

1981-10-06

Truhe, J. V.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Work and feed motors

318640, 29597, B23Q 510, B23Q 528

Patent

active

042938058

ABSTRACT:
Apparatus is provided for sensing a location on a commutator and, in response thereto, actuating a tool for performing an operation on the commutator. The apparatus includes a device for mounting the commutator for rotation so that it may be indexed to successive commutator bars which are to be worked on. There is also a light source and a device for directing light from the source to the surface of the commutator, and a device for directing the reflection of light from the commutator surface to a sensing device. When the light beam impinges on a non-reflective area of the commutator so that the sensing device is not actuated, the sensing device signals a control circuit for stopping the rotation of said commutator and for actuating a tool for performing an operation on the commutator. In order to prevent the interference of ambient light with the operation of the sensing apparatus, a protective housing is provided for at least partially enclosing the light-directing devices.

REFERENCES:
patent: 3714447 (1973-01-01), Jallais
patent: 3911563 (1975-10-01), Anderson
patent: 3970394 (1976-07-01), Stanton
patent: 3986778 (1976-10-01), Mathisen et al.
patent: 4033698 (1977-07-01), Demsky et al.
patent: 4162399 (1979-07-01), Hudson

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