Tapping attachment for radial tapping

Details Tapping attachment for radial tapping Tapping attachment for radial tapping

1993-04-02

1994-10-25

Bishop, Steven C.

Cutting by use of rotating axially moving tool

Tool or tool-support with torque-applying clutch

192 21, 192 51, 470181, B23G 302, B23G 514

Patent

active

053583620

ABSTRACT:
A tapping attachment for use in connection with radial tapping comprises a tap spindle member rotatable in a tapping direction, a driven part engageable with a driving part from a power source in a different direction from the tapping direction, a forward drive member engageable with the tap spindle member to drive the tap spindle member in the tapping direction, a reverse drive member engageable with the tap spindle to drive it in a direction opposite to the tapping direction, means for transmitting drive to the forward drive member and the reverse drive member and engageable with the driven part for receiving drive and with the tap spindle member. The forward drive member and the reverse drive member are moveable axially along the tapping direction relative to the tap spindle member and upon relative axial movement in a direction opposite to the tapping direction, the forward drive member disengages from the tap spindle member and the reverse drive member engages in driving engagement with the tap spindle member to impart reverse rotation to the tap spindle member.

REFERENCES:
patent: 3999642 (1976-12-01), Johnson
patent: 4014421 (1977-03-01), Johnson
patent: 4705437 (1987-11-01), Johnson
patent: 5025548 (1991-06-01), Justesen
patent: 5209616 (1993-05-01), Johnson

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