Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1989-12-08
1992-03-24
Rachuba, M.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 95LH, 51288, 51219PC, B24B 4900
Patent
active
050976346
ABSTRACT:
The present invention relates to a apparatus and method for sharpening rotary tools which includes a base for supporting a housing and a slidable table. The housing includes a motor which drives a grinding wheel located at the end of the drive shaft. A sleeve is pivotally mounted on one end of the slidable table. A toolholder which holds the tool to be sharpened is placed and is slidable within the sleeve. A spiraled cam is attached to the toolholder. A guidepin, supported by the sleeve, rides within the spiraled groove of the cam to rotate the toolholder such that the tool will be sharpened along a spiraling blade. A pointer is supported by the sleeve for marking each successive point at which the tool will strike the grinding wheel as the toolholder is advanced within the sleeve toward the grinding wheel. The invention may also include a second sleeve mounted on the slidable table such that the central axis of the second sleeve is approximately at a right angle with respect to the central axis of the first sleeve. The second sleeve allows for the toolholder and tool to be placed in position for the sharpening of the end of the tool.
REFERENCES:
patent: 2052567 (1936-09-01), Haines
patent: 2217545 (1940-10-01), Guenther
patent: 2322510 (1943-10-01), Franzen
patent: 2583159 (1952-01-01), Swanson
patent: 2751718 (1956-06-01), Falkman
K. O. Lee "Compact Tool and Cutter Grinders"; 5/86, U.S.; pp. 1-4; Author unknown.
H. D. T. "Cuttermaster"; date unknown, U.S.; pp. 1-4; Author unknown.
"Darex Precision End Mill Sharpeners"; date unknown; U.S.; p. 1-8; Author unknown.
Kirk, Jr. John R.
Oathout Mark A.
Rachuba M.
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