Gear cutting – milling – or planing – Milling – Templet – tracer – or cutter
Patent
1991-10-29
1992-07-07
Howell, Daniel W.
Gear cutting, milling, or planing
Milling
Templet, tracer, or cutter
82 12, 408 88, 408236, 409143, B23C 300
Patent
active
051277778
ABSTRACT:
The device for making a drilled hole with an undercut consists of a drilling machine and connected rotatable drilling tool, a supporting stand for the drilling machine having a holding device with a bearing bush secured in it, and a sleeve fixedly joined to the drilling machine. The sleeve is rotatably mounted in the bearing bush. A lever (35) is attached to the drilling machine (12), a cam plate (39,49) having a circumferential surface (40,60) is attached to the supporting stand (3) and a crank are provided for the lever. An end of the lever (35) remote from the drilling machine (12) is connected with the crank so that the lever can be pivoted and the drilling machine with the drilling tool swung out. The crank has at least one peg engagable on the circumferential face of the cam plate, the circumferentil face acting as a stop for the lever so that the lever can be rotated when the peg engages on the circumferential surface so that the end of the lever remote from the drilling machine describes a circle about a center line of the lever in a neutral position of the lever.
REFERENCES:
patent: 2823591 (1958-02-01), Craddock et al.
patent: 2969000 (1961-01-01), Groebecker
Fischer Artur
Haug Willi
Artur Fischer GmbH & Co. KG.
Howell Daniel W.
Striker Michael J.
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