Handhole seat resurfacing tool for naval pressure fired boilers

Details Handhole seat resurfacing tool for naval pressure fired boilers Handhole seat resurfacing tool for naval pressure fired boilers

1981-04-24

1983-06-21

Watson, Robert C.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51241R, 51241S, 51241B, 51241VS, 51372, B24B 1500

Patent

active

043887821

ABSTRACT:
A grinder for preparing circular seats behind elliptical handholes of mar boilers. An air motor, mounted within an expandable housing, drives a grinding wheel against the inside surface of the handhole. The housing is expanded to be secured in the elliptical handhole. The center of the motor orbits on a circle about the center of the housing so that a circular seat is formed about the inside edge of the elliptical handhole.

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