Boring device

Details Boring device Boring device

1976-12-17

1979-01-09

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Adjustable cutter element

175408, 408713, B23B 5104

Patent

active

041333993

ABSTRACT:
A boring device adapted for deep boring wherein the boring head has a plurality of cutting inserts adjustably mounted on the boring head. Axially extending guide plates are mounted on the periphery of the boring head and are substantially equidistantly disposed between adjacent cutting inserts.

REFERENCES:
patent: 149639 (1874-04-01), Chandler
patent: 922252 (1909-05-01), Buck
patent: 1226393 (1917-05-01), Skeen
patent: 1600073 (1926-09-01), Smith
patent: 2097040 (1937-10-01), Pivoto
patent: 3094016 (1963-06-01), Kleine
patent: 3195376 (1965-07-01), Bader
patent: 3700346 (1972-10-01), Eckle
patent: 3751177 (1973-08-01), Faber
patent: 3989115 (1976-11-01), Ambrose

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