Rotary cutter

Details Rotary cutter Rotary cutter

1990-06-29

1991-07-09

Bishop, Steven C.

Cutting by use of rotating axially moving tool

With means to apply transient, fluent medium to work or product

Including tool with duct

407 11, 407 57, 408201, 408225, 408229, 408 57, B23B 5106, B23B 5110

Patent

active

050300407

ABSTRACT:
The cutting edges (16) of a 3-toothed countersink bit (10) lead slightly in the direction of rotation by an amount (t). The rear face (38) of the head (40) of a detachable pilot (30) is concave so as to fit snugly over the forward end of the bit (10). Lubricant is supplied via a bore (28), flats (44) on the pilot shank (32), a chamber (42) at the mesal end of the shank (32) and notches (46) in the tip of the bit to the spaces between the teeth (14).

REFERENCES:
patent: 1016116 (1912-01-01), Walters
patent: 1464298 (1923-08-01), Stein
patent: 2865237 (1958-12-01), Degenhart
patent: 3028772 (1962-04-01), Mossberg
patent: 4197042 (1980-04-01), Krhounek et al.

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