Cutting by use of rotating axially moving tool – Tool or tool-support with torque-applying clutch
Patent
1991-06-27
1992-07-21
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool or tool-support with torque-applying clutch
192 21, 192 51, 408132, 470181, B23B 4714
Patent
active
051317940
ABSTRACT:
A self-reversing tapping attachment employing dog drive includes driver means with at least one drive element for driving engagement with at least one dogging element on drive transmitting means, the dogging element and drive element being such that engagement between them is over an area greater than a point and further includes a drive spindle member for carrying a tap having at least one drive component for engagement with a dogging element on the drive transmitting means, the driver elements and dogging elements providing minimum interference between forward and reverse drive.
REFERENCES:
patent: 2493059 (1950-01-01), Crafts
patent: 3041893 (1962-07-01), Johnson
patent: 3717892 (1973-02-01), Johnson
patent: 3946844 (1976-03-01), Johnson
patent: 3998565 (1976-12-01), Tanaka
patent: 4277209 (1981-07-01), Benjamin et al.
Evanns Joseph R.
Howell Daniel W.
Tapmatic Corporation
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