Boring tool

Details Boring tool Boring tool

1979-09-28

1981-01-13

Hinson, Harrison L.

Cutting by use of rotating axially moving tool

Tool or tool with support

With work-engaging structure detachable from cutting edge

408213, 408214, 408225, 408226, B23B 5100

Patent

active

042446678

ABSTRACT:
A boring tool of the self-feeding type is disclosed which includes a plurality of cutting members secured to a body and a self-feeding member operative to draw the boring tool into the workpiece. The cutting elements are positioned on the body in such a manner as to provide a depth of cut correlated to the rate of advancement effected by the feed member thereby insuring smooth even efficient cutting action of the boring tool. Additionally, the body is provided with a work engaging surface portion operative to further insure controlled even advancement of the boring tool through the workpiece. A retaining member is also provided in the body member which is operative to retain a one piece feed membershank within the body and to maintain the self-feeding member in close proximity to an adjacent cutting member so as to prevent wrapping of wood fibers or the like about the self-feeding member.

REFERENCES:
patent: 450908 (1891-04-01), Brede
patent: 1140988 (1915-05-01), Kunitz
patent: 2643692 (1953-06-01), O'Brien
patent: 3165131 (1965-01-01), Mackey
patent: 3945753 (1976-03-01), Byers
patent: 4090807 (1978-05-01), Stewart
patent: 4108567 (1978-08-01), Faber
patent: 4134706 (1979-01-01), Stewart

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