Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1984-11-26
1986-06-10
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51133, 511312, 511313, B24B 717
Patent
active
045934959
ABSTRACT:
A polishing machine for polishing the surfaces of the workpieces to be processed has upper and lower surface plates which are rotated relative to each other. A plurality of carriers are placed between the upper and lower surface plates and each of the carriers has a plurality of bores into which the workpieces are fitted. These carriers are engaged with both the sun gear and the internal ring gear within the same plane. In account of the sun gear and the internal ring gear, the carriers are rotated round the sun gear, turning round their own axes. The internal ring gear can be lifted up and down by a lift mechanism. The sun gear is slidably attached to a hollow driving shaft and has a feed screw which is engaged with a feed nut. This feed nut is rotatably fitted onto the hollow driving shaft in such a way that the nut is limited of its movement in the axial direction. The sun gear can be lifted up and down independently of the internal ring gear when an operating means including the feed screw and nut is operated.
REFERENCES:
patent: 2316071 (1943-04-01), Johnson
patent: 3089292 (1963-05-01), Hunt
Endo Masami
Kawakami Hideo
Tazawa Shinichi
Meislin Debra S.
Schmidt Frederick R.
Toshiba Machine Co. Ltd.
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