Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1982-06-21
1984-09-18
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51370, B24B 4500
Patent
active
044715820
ABSTRACT:
A sanding device for use with a drill press having a drum divided diametrically into half sections. The drum is covered by a unitary layer of resilient rubber-like material such as neoprene. The cover hinges the drum halves together along one side of the drum. When an abrasive sheet has been installed on the device, the two halves are joined together by a nut threaded onto a short shaft which projects from each end of the drum. The upper nut has a metal shaft extending coaxially from the nut and this shaft can be used to attach the device to a drill press chuck or directly to a shaft. The mechanism for attaching the abrasive sheet includes two slots each of which extends from the diametrical surface of a respective half section. Each slot extends the length of the drum and is adapted to accommodate one end of the abrasive sheet. Preferably each slot extends radially outwardly from the center axis of the drum and is disposed at an angle less than 45 degrees with respect to a drum radius extending along the diametrical surface of the respective drum half away from the hinge formed by the cover.
REFERENCES:
patent: Re8555 (1879-01-01), Dunham
patent: 141523 (1873-08-01), Thompson
patent: 999436 (1911-08-01), Dobyne
patent: 2472899 (1949-06-01), Hein
patent: 2652666 (1953-09-01), Longbotham
patent: 2789401 (1957-04-01), Hargreaves
patent: 3116576 (1964-01-01), Block
patent: 3774354 (1973-11-01), Taylor
patent: 3975868 (1976-08-01), Botimer
Cone-Loc Drum Sanders Published by American Diamond Saw Company, 2 pages.
Daschel Matthew D.
Schmidt Frederick R.
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