Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support
Patent
1979-01-11
1981-10-13
Briggs, William R.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
408 72B, 408115R, B23B 4728
Patent
active
042945674
ABSTRACT:
This invention relates to a tool to be used in connection with doweling jig(s) of my U.S. Pat. application Ser. No. 850,582 filed Nov. 11, 1977 now U.S. Pat. No. 4,145,160, to expand their utility. This tool provides support to hold the jig above and parallel to a flat surface such as a piece of lumber, plywood, particle board or the like for direct drilling of precisely positioned perpendicular dowel pin holes to mate with identically positioned holes drilled or to be drilled in an edge or end of another workpiece; said pieces forming a right angle when joined together with dowels. Another application of this tool, unrelated to doweling, is for drilling equally spaced aligned holes in a flat surface.
REFERENCES:
patent: 1269811 (1918-06-01), Heritage
patent: 2029650 (1936-02-01), Betz
patent: 2367582 (1945-01-01), Honyoust
patent: 2864268 (1958-12-01), Anderson
patent: 2884820 (1959-05-01), Pearce
patent: 3204493 (1965-09-01), Severdia
patent: 4145160 (1979-03-01), Wiggins
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