Metal working – Upholstered article making – Tufting
Patent
1975-11-14
1976-09-21
Hinson, Harrison L.
Metal working
Upholstered article making
Tufting
29 95R, B26D 112, B26D 100
Patent
active
039810577
ABSTRACT:
A cutting tool comprises a tool bit having the configuration of a hollow pyramid which includes an open base and three side walls, each having an outer face. The adjoining outer faces define three cutting edges coverging in the apex of the pyramid. The cutting tool further has a base block with a recess for receiving the tool bit and a clamping device for tightening the tool bit, positioned in said recess, to the base block.
REFERENCES:
patent: 1585000 (1926-05-01), Thompson
patent: 2870523 (1959-01-01), Richard
patent: 3121939 (1964-02-01), Williams
patent: 3172190 (1965-03-01), Beach
patent: 3178801 (1965-04-01), Krueger
patent: 3188717 (1965-06-01), Heinlein
Fried. Krupp Gesellschaft mit beschrankter Haftung
Hinson Harrison L.
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