Apparatus for machining large heavy workpieces in situs

Details Apparatus for machining large heavy workpieces in situs Apparatus for machining large heavy workpieces in situs

1978-05-11

1979-12-11

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

409179, B24B 1900

Patent

active

041776100

ABSTRACT:
Apparatus for machining an extremely large and very heavy workpiece, such as a runner of a hydro-turbine machine, in situs. The hub of the hydro-turbine runner is utilized as a support for a rotatable beam which is arranged to carry a depending grinding or cutting tool in position to machine the wear ring surface of the turbine. Positioning of the grinding tool both in a vertical direction and a radial direction is effected to control the grinding operation. The power drive grinding tool is bodily rotated around the wear right by rotating the entire supporting beam around an axis which is concentric with the axis of the runner.

REFERENCES:
patent: 1799109 (1931-03-01), Lyne
patent: 2412199 (1946-12-01), Blood
patent: 2455762 (1948-12-01), Hall
patent: 3608172 (1971-09-01), Lindquist
patent: 3617142 (1971-11-01), DeWane

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