Apparatus for machining a valve's seat

Details Apparatus for machining a valve's seat Apparatus for machining a valve's seat

1986-03-26

1987-07-07

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Frictionally engaging sides of opening in work

51241VS, 82 12, 408 54, 408 80, B23B 4100

Patent

active

046783792

ABSTRACT:
Apparatus for machining a stop valve seat ring while the valve remains piped to a turbine comprises a pair of spiders with adjustable arms which fit within the valve and a shaft rotatably supported by the spiders and driven through a gear train by a motor attached to one of the spiders, the shaft having a tool support which holds and is capable of moving a single edge cutting tool axially to machine the seat ring.

REFERENCES:
patent: 413697 (1889-10-01), Wheelock
patent: 1973386 (1934-09-01), Morgan
patent: 3751175 (1973-08-01), Brooks
patent: 4050836 (1977-09-01), Anders
patent: 4571129 (1986-02-01), Strand

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