Spindle assembly having an electrode spindle

Details Spindle assembly having an electrode spindle Spindle assembly having an electrode spindle

1975-05-07

1977-02-08

Tupman, W.

Geometrical instruments

339112L, H01R 3900

Patent

active

040069532

ABSTRACT:
A spindle assembly has a rotatable spindle which is electrically insulated from its housing by means of a moulded synthetic resin layer surrounding bearing holders. Electric current for effecting electrolytic grinding is supplied by a brush member which is in contact to the rear end of the spindle, the contact portion of the spindle and the brush having air circulating pathes for cooling and ejecting out powdered-brush-material and have radiating surfaces exposed to cooling air flow.

REFERENCES:
patent: 2291070 (1942-07-01), Bruno

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