Cutting tool for removing governor chest nozzles and refinishing

Details Cutting tool for removing governor chest nozzles and refinishing Cutting tool for removing governor chest nozzles and refinishing

1977-07-28

1978-05-23

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

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

Movable relative to tool along tool-axis

408138, 90 125, B23B 4100, B23B 4718

Patent

active

040908054

ABSTRACT:
A portable cutting tool is mounted on the top of a governor chest after the chest cover and valving mechanisms have been removed from the chest. The cutting tool rotates and axially advances a cutting head to cut away the weld material which welds a nozzle to a wall of the governor chest. This permits removal and replacement of the nozzle. The cutting tool is mounted on a mounting plate so as to permit selection of one of several locations as the cutting site, thus permitting use of a single cutting tool to effect the removal of all the nozzles within a governor chest. The cutting head carries two tool bits which cut in annular overlapping paths and the cutting head is recessed so it may pass over a nozzle as a weld is cut. A second cutter head is provided for refinishing the nozzle seats after the nozzles have been removed. Different interchangeable mounting plates permit the cutting tool to be utilized on governor chests of different sizes or having different spacings between nozzles.

REFERENCES:
patent: 1527143 (1925-02-01), Lakes
patent: 3286553 (1966-11-01), Spencer et al.
patent: 4011793 (1977-03-01), Grimsley

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