Lester R Sunday

US Patent:

46783792, Jul 7, 1987

Filed:

Mar 26, 1986

Appl. No.:

6/844497

Inventors:

Lester R. Sunday - Springfield PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B23B 4100

US Classification:

408 835

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.

US Patent:

40234517, May 17, 1977

Filed:

Mar 30, 1976

Appl. No.:

5/671849

Inventors:

Robert C. Acton - Marple Township PA
Lester R. Sunday - Darby PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

B23B 4106
B23B 328

US Classification:

82 15

Abstract:

Apparatus for enlarging a portion of a bore of a rotor includes a rotor support and drive and a boring bar with controlled fly cutters, which operate in unison with an indicator that follows a template shaped to correspond to the desired shape of the enlargement.