Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Patent
1984-05-04
1986-05-06
Briggs, William R.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Having tool-opposing, work-engaging surface
408712, B23B 4514
Patent
active
045868565
ABSTRACT:
A wheeled carriage has an upright column with a laterally projecting and vertically adjustable arm thereon. The projecting end of the arm has a dove-tail connector thereon rotatably adjustable in a horizontal plane; a tubular feed screw support has a mating dove-tail part on its bottom side engageable with the connector. The end of the feed screw support has a second dove-tail connector thereon and rotatably adjustable in a vertical plane. A bracket attachable to the motor of an electric drill has a second mating dove-tail part engageable with the second connector with the shaft of the drill chuck aligned with the axis of the tubular support. Two spaced tubular chucks are mounted on opposite sides of the tubular support to receive and releasably lock anchor cables parallel to the drill.
A modification interposes a horizontally rotatable connector bar with a mating dove-tail part on its side, and a dove-tail connector on one end, between the arm on the upright and bracket supporting the drill motor.
Manual and power driven feed screw supports are disclosed.
REFERENCES:
patent: 391391 (1888-10-01), Sangster
patent: 2362929 (1944-11-01), Richards
patent: 3357445 (1967-12-01), Daugherty
patent: 3417949 (1968-12-01), Waber
patent: 3711214 (1973-01-01), Cloutier
patent: 3834828 (1974-09-01), Kikuchi
patent: 3967687 (1976-07-01), Fowler
patent: 4461594 (1984-07-01), Waber
Briggs William R.
Webb Austin A.
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