Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1986-05-12
1987-11-24
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29557, 29DIG24, 83DIG2, 148 9R, 266 48, B23P 1700, B23K 700
Patent
active
047078987
ABSTRACT:
A semi-automated beam cutting machine simultaneously cuts with two torches the flanges of the beam in a presettable plane in each of two axis. The web of the beam is cut with a further torch in response to a template, to obtain two rat holes and the inset web edge. Independent angular reorientation in a third plane of each of the flange cutting torches accommodates for lack of perpendicularity between each flange and the web to obtain a true edge and a constant width angle cut. The ends of two beams formed from a single beam can be cut in a single operation with appropriate adjustments to the machine. A method for performing various end cuts of a beam is disclosed.
REFERENCES:
patent: 3190628 (1965-06-01), Litzka
patent: 4129460 (1978-12-01), Brolund et al.
patent: 4457197 (1984-07-01), Wepner et al.
IK-60M:Compact, Manual H-Beam Cutting Machine, Cat. No. 30A11-2; Koike America, Inc.
IK-60A: Compact, Automatic H-Beam Cutting Machine, Cat. no. 30A10-2; Koike America, Inc.
Mini-Mantis II: Portable H-Shape Steel Gas Cutting Machine, Cat. No. 76051, K. N. Aronson, Inc.
Vernon, pub. no. BPM-83-5M, Vernon Tool Company, Oceanside, Calif. (Oct. 1983).
Goldberg Howard N.
Wallace Ronald S.
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