Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1987-01-21
1988-07-05
Olszewski, Robert P.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51209R, 51378, 1523018, B24B 4500
Patent
active
047545780
ABSTRACT:
A disposable depressed center grinding wheel for mounting on a rotatable threaded spindle of a power tool. The grinding wheel contains a retaining nut on one side and a backing flange on the other non-removably secured together on the grinding wheel without the aid of adhesives in such a manner that the grinding wheel is placed in compression when it is operably secured upon the spindle of the power tool under grinding loads. The nut and flange are secured together by upsetting one end of the nut causing it to protrude outwardly over the outer surface of the flange. A pressure cap member is secured to the outwardly protruding portion of the nut for engaging a shoulder formed on the spindle of the power tool during operation of the grinding wheel.
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