Grinding machine

Details Grinding machine Grinding machine

1984-06-13

1986-03-18

Parker, Roscoe V.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

91351, 91352, 92138, 29 76A, B24B 2304, F01L 3104, B23D 6700

Patent

active

045759731

ABSTRACT:
Compressed air fed into a directional control sleeve is alternatingly delivered to two cylinders via a directional control valve. Pistons within the respective cylinders are each provided with a rack gear moved by feeding compressed air into the cylinders. A grindstone attached to a second set of rack gears is reciprocated through pinion gears by movement of the first-mentioned rack gears. As the grindstone reciprocates, a valve operating arm pivotally supported by a pin is caused to rotate back and forth to switch the directional control valve, thereby switching the cylinder that receives the compressed air. The grinding machine is thus capable of performing grinding in continuous fashion.

REFERENCES:
patent: 2224140 (1940-12-01), Champayne
patent: 2620775 (1952-12-01), Champayne
patent: 3214823 (1965-11-01), Hendrickson
patent: 3474512 (1969-10-01), Hansen
patent: 3563134 (1971-02-01), Rodstein
patent: 3835592 (1974-09-01), Sumida

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