Compensating steadyrest

Details Compensating steadyrest Compensating steadyrest

1979-10-09

1981-07-07

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

B24B 4106

Patent

active

042767237

ABSTRACT:
A steadyrest for supporting a workpiece to be ground comprising three contact shoes which are simultaneously movable toward and away from a workpiece centerline so that workpieces of varying diameter can be supported and maintained on a fixed centerline of rotation. The top contact shoe is mounted for pivotal movement to a position clear of the work area to facilitate loading and unloading of the workpiece. A hydraulic operator is provided for pivoting the upper contact shoe between the operative position, engaging a workpiece, and the load-unload position. A second hydraulic operator is provided which through appropriate mechanical wedges moves upper contact shoe and the two lower non-pivoting contact shoes simultaneously toward or away from a workpiece.

REFERENCES:
patent: 2160378 (1939-05-01), Balsiger
patent: 2838885 (1958-06-01), Cann
patent: 3145513 (1964-08-01), Porath
patent: 3427762 (1969-02-01), Mills
patent: 3591988 (1971-07-01), Price
patent: 3736114 (1973-05-01), Okada
patent: 3878651 (1975-04-01), Nakada

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