Apparatus for cutting inner circumferential surface of thick wal

Details Apparatus for cutting inner circumferential surface of thick wal Apparatus for cutting inner circumferential surface of thick wal

1992-11-30

1994-05-31

Terrell, William E.

Turning

Lathe

Multiple

408 62, 408 69, 408705, B23B 508

Patent

active

053159047

ABSTRACT:
A device for cutting the inner circumferential surface of a thick-walled small diameter pipe comprising a setting means for inserting a core bar having a cutting blade on one end thereof into a pipe to be processed, a rotating means for rotating said pipe to be processed set by the setting means about the axis thereof relative to said core bar, a feed means for cutting the inner surface of said pipe to be processed with said cutting blade while pulling the core bar which is securedly held at the other end thereof relative to said pipe to be processed, and a control means for controlling each of said means, providing a smooth high quality inner surface having excellent proof pressure against internal pressure.

REFERENCES:
patent: 1532107 (1925-03-01), Ferris
patent: 2183861 (1939-12-01), Cotter, Sr.
patent: 2315476 (1943-03-01), Groene
patent: 3046846 (1962-07-01), Bonnafe
patent: 3517536 (1970-06-01), Fitzmaurice
patent: 4531868 (1985-07-01), Gabriele
patent: 4573841 (1986-03-01), Petkov et al.

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