Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1985-07-10
1987-04-28
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51166TS, B24B 4100
Patent
active
046603280
ABSTRACT:
A grinding spindle holder accommodates two or more grinding spindles and is mounted on, or adapted to be fitted to a feed slide of a grinding machine. The spindle holder has a stationary base part and a movable part which accommodates the grinding spindles and which can be rotatably stepped between given terminal positions by swinging the movable holder part about a shaft extending parallel with the spindle axes, for consecutive movement of the spindles to a grinding position for engagement with a workpiece in one and the same chuck position. The movable holder part can be swung by means of a working piston-cylinder device between two stop abutments located on the base part of the holder, of which stop abutments at least one can be adjusted in a manner to accurately determine the position of a relevant grinding spindle in the grinding position. The spindle holder is also provided with means for damping the swinging movement of the movable holder part towards respective stop abutments.
REFERENCES:
patent: 925867 (1909-06-01), Bryant
patent: 3137104 (1962-08-01), Banko
patent: 3686796 (1972-08-01), Clark
patent: 3721045 (1973-03-01), Wojcik
patent: 4136489 (1979-01-01), von Allmen
AB UVA
Rachuba Maurina
Schmidt Frederick R.
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