Cutting by use of rotating axially moving tool – Tool-support with means to move tool relative to tool-support – To move radially
Patent
1996-12-31
1998-11-24
Pitts, Andrea L.
Cutting by use of rotating axially moving tool
Tool-support with means to move tool relative to tool-support
To move radially
408187, 408236, 408 73, B23B 5100
Patent
active
058398600
ABSTRACT:
A cylindrical tool holder has at one end a shank section disposed to be chucked in the drive spindle of a drill press or the like, and has in its opposite end a recess in which a tool bit pivots between an operative position in which it projects radially outwardly from the recess, and in inoperative position within the recess. The bit is connected to one end of an operating rod which is pivotal in a slot in the holder, so that when the rod is swung to one limit position the tool bit is swung to its operative position, and vice versa. An actuating disc which is mounted on the holder for limited rotation relative thereto, is frictionally coupled adjacent its outer periphery with a flywheel which is rotatably mounted on the tool holder, whereby rotation may be transmitted by the holder through the flywheel and friction coupling to the actuating disc. The actuating disc has thereon two spaced pins. One pin engages a lateral projection on the operating rod to pivot the rod to its tool bit actuating position, when the actuating disc is rotated in one direction by the flywheel, and the other pin engages the projection to swing the rod to its tool bit retracting position, when the flywheel rotates the disc in the opposite direction.
REFERENCES:
patent: 3814535 (1974-06-01), Steiner
patent: 5507606 (1996-04-01), Steiner
Pitts Andrea L.
R. Steiner Technolgoies, Inc.
Tsai Henry W. H.
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