Work holder for grinder

Details Work holder for grinder Work holder for grinder

1978-04-03

1979-10-30

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51225, B24B 1900

Patent

active

041723406

ABSTRACT:
Apparatus based on right-angle socket adapted to hold therein either square or round shank of workpiece for grinding faces of latter in diverse arcuate and/or planar patterns. Setting requires use of only two adjustments, each effected with great and easily reproducible accuracy: (a) by slide track for radial displacement of socket from axis of rock shaft (precisely measured by use of gage blocks), (b) angular rotation of socket on corner or edge axis-- angular variation in either direction therefrom defines eccentricity of arc thus ground from reference arc centered on rock shaft. Thus settings for the two dissimilar edges or tail of a trepan bit are each set simply by turning the socket different degrees on its corner edge axis. Alternately, socket can be located for concentric rotation of workpiece by continuous driving shaft instead of rocking.

REFERENCES:
patent: 2647352 (1953-08-01), Lamberty
patent: 3094821 (1963-06-01), Eckert
patent: 3512309 (1970-05-01), Grieco

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