Metal treatment – Compositions – Heat treating
Patent
1980-09-23
1982-03-16
Stallard, W.
Metal treatment
Compositions
Heat treating
266 58, 266 64, 266 70, 266 77, B23K 710
Patent
active
043199330
ABSTRACT:
An accessory for facilitating the accurate cutting of holes with a cutting torch. A die is attached to the workpiece by legs and presents a die opening which controls the size and shape of the hole. A bridge piece fits against the die and maintains the cutting torch tip perpendicular to the surface of the workpiece as the torch is guided around the edge of the die opening to form the hole.
REFERENCES:
patent: 1922529 (1933-08-01), Day
patent: 2036733 (1936-04-01), Kehl
patent: 2036734 (1936-04-01), Kehl
patent: 2514741 (1950-07-01), Bullman
patent: 2740621 (1956-04-01), Way, Jr.
patent: 3614078 (1971-10-01), Hepler
patent: 3944194 (1976-03-01), Robinson
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