Portable boring tool for ball valves

Details Portable boring tool for ball valves Portable boring tool for ball valves

1977-04-08

1978-09-19

Vlachos, Leonidas

Turning

Radially moving rotating tool inside bore

51241VS, 408101, 408102, 408129, B23B 4100

Patent

active

041144830

ABSTRACT:
A portable boring tool for refinishing the seal ring seats on ball valves is provided with a base plate which is mounted on top of the valve. A housing is supported by the base plate in a manner that permits linear movement of the housing. The housing contains gearing for transmitting motion from an input shaft above the base plate to a cutter assembly drive shaft below the base plate. The cutter assembly drive shaft rotates an automatically indexing cutter head assembly to cut successively smaller circles of material from the surface being refinished. A handwheel and feed screw arrangement is provided for moving the housing and cutter head assembly along a linear path. A micrometer is provided for limiting the depth of cut to be taken into the surface being refinished.

REFERENCES:
patent: 801350 (1905-10-01), Williams
patent: 1099215 (1914-06-01), Sullivan
patent: 2318854 (1943-05-01), Hall
patent: 3216295 (1965-11-01), Gill

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