Device for supporting and moving a tool within a tapping

Details Device for supporting and moving a tool within a tapping Device for supporting and moving a tool within a tapping

1981-04-06

1983-12-13

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51 43, 51241S, 51245, 51290, 409179, 409199, 151041R, B24B 506

Patent

active

044198477

ABSTRACT:
A supporting and centering arrangement in the form of a star the arms of which are radial with respect to a tapping to be machined or checked. These arms have elements for centering and fastening them to the tapped wall, as well as a centering element at the projecting end of the tapping. The support and the centering element carry bearings. A tool holder bar connected to two rotating stub shafts is mounted off-set from the axis of the bearings in the radial direction of the tapping. The bar supports a tool guide, and is rotatable about the axis of the tapping. The device is especially useful for machining and checking tappings formed in a pressurized water nuclear reactor tank.

REFERENCES:
patent: 1114376 (1914-10-01), Milkop
patent: 1365149 (1921-01-01), Breed
patent: 1814078 (1931-07-01), Cole et al.
patent: 2188720 (1940-01-01), McQuade
patent: 2297074 (1942-09-01), Rohrdanz
patent: 2372341 (1945-03-01), Shanley
patent: 2521210 (1950-09-01), Fulmer
patent: 3218762 (1965-11-01), Renfroe
patent: 4208229 (1980-06-01), Giardini

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