Cutting by use of rotating axially moving tool – Tool or tool-support with torque-applying clutch
Patent
1997-12-03
1999-03-02
Bishop, Steven C.
Cutting by use of rotating axially moving tool
Tool or tool-support with torque-applying clutch
81477, 192 551, 279 83, 279157, 408222, 408239R, 464 37, 470103, B23B 3138, B23G 516
Patent
active
058761586
ABSTRACT:
A drive collet assembly for an internal thread producing tap. The collet includes a collar that is attached to the stem of the tap using set screws. The collar is received into a recess of the body portion of a drive collet and retained therein using a spring clip. A smaller diameter aperture extends into the body portion above the recess, the aperture receiving a portion of the stem of the tap, the portion has a pair of opposed flats thereon. At least two laterally extending threaded apertures intersect the smaller diameter aperture and each receive a rigid button, a flexible element and a set screw. The set screw can be adjusted to provide a desired breakaway torque which will protect the tap from breakage should an over-torque condition occur. The flexible element will allow the rigid buttons to be forced outwardly so that the drive collet assembly spins freely about the jammed tap, rather than twisting it off. Reversing the direction of the drive will break off the chip or burr or clear the tip of the tap from touching the bottom of the hole and allow the tap to be rotated out of the hole.
REFERENCES:
patent: 1290427 (1919-01-01), Velk
patent: 1826107 (1931-03-01), Woods
patent: 2784429 (1957-03-01), Jones
patent: 2791433 (1957-05-01), Dodd
patent: 2974965 (1961-03-01), Welles, Jr.
patent: 3142077 (1964-07-01), Nickell
patent: 3162283 (1964-12-01), Saul et al.
patent: 3299697 (1967-01-01), Sparling
patent: 3466681 (1969-09-01), Benjamin et al.
patent: 4081873 (1978-04-01), Lemanski
patent: 4115025 (1978-09-01), Petroff
patent: 4174918 (1979-11-01), Tanaka
patent: 4304511 (1981-12-01), Machida
patent: 4364694 (1982-12-01), Miles
patent: 4386689 (1983-06-01), Kato
patent: 4507025 (1985-03-01), Fedor
patent: 4547105 (1985-10-01), Hofle et al.
patent: 4664571 (1987-05-01), Takada et al.
patent: 4692072 (1987-09-01), Pfister et al.
patent: 4694686 (1987-09-01), Fildes et al.
patent: 4944643 (1990-07-01), Lehmkuhl
patent: 5096343 (1992-03-01), Luu
patent: 5131794 (1992-07-01), Johnson
patent: 5155473 (1992-10-01), Oketani et al.
patent: 5248229 (1993-09-01), Bilz
patent: 5351039 (1994-09-01), Oketani et al.
patent: 5643089 (1997-07-01), Hummel
Bishop Steven C.
Thomson Richard K.
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