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
1996-07-02
1998-07-28
Howell, Daniel W.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Having tool-opposing, work-engaging surface
408136, 408236, 408712, B23B 4500
Patent
active
057854670
ABSTRACT:
A multi-method capable portable machining apparatus including a lever bar and fulcrum that allows user to place multiplied pressure on the rotating cutting tool while at the same time controlling the torque and other reactional forces introduced by the operation. Provision is also made, in the work anchored fulcrum embodiment, so the operator can safely control break thru of the cutting tool by utilizing the compressive capability of the fulcrum in combination with a safety stop on the fulcrum. The design includes provision to apply multiplied pressure to the cutting tool using a fulcrum in either compression or tension mode. The device is light, compact, easily adjustable and multi-versatile to allow user ingenuity in method of application of the device to the situation at hand. One embodiment includes provision that allows safe, controlled operation without physically attaching fulcrum to the work.
REFERENCES:
patent: 595896 (1897-12-01), Dusen et al.
patent: 1869514 (1932-08-01), Seitz
patent: 2472270 (1949-06-01), Stinchcomb
patent: 2625063 (1953-01-01), Hanson
patent: 2709380 (1955-05-01), Reynolds
patent: 3286553 (1966-11-01), Spencer et al.
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