Wireworking – Joining wire – Electric welding
Patent
1979-02-26
1981-09-29
Larson, Lowell A.
Wireworking
Joining wire
Electric welding
140105, B21F 104
Patent
active
042917328
ABSTRACT:
A plurality of wire trusses is employed in a three-dimensional wire matrix having a foam core to provide a light-weight structural building panel. Each truss, comprised of a sinuously bent strut wire having its apices welded to lateral runner wires, is formed by a continuous bending and wire processing apparatus which simultaneously withdraws three wires from wire supplies, sinuously bends the strut wire, assembles the bent strut wire with the runner wires, welds the joints therebetween, and severs desired lengths of completed truss sections. Several wires are fed to the bending station at different speeds and intermittently via three individually automatically controlled wire storage loops. The arrangement is such that even with the several different wire feed rates, all three wires are pulled from wire supply rolls by a single motor and all three are driven to the truss fabrication station by a single motor.
REFERENCES:
patent: 2642098 (1953-06-01), Stoeckel
patent: 2722242 (1955-11-01), Talbot
patent: 3225989 (1965-12-01), Stine
patent: 3612369 (1971-10-01), Grebe et al.
patent: 3626567 (1971-12-01), Michelson et al.
patent: 3820367 (1974-06-01), Kline
patent: 4043494 (1977-08-01), Bickford et al.
Covington Brothers, Inc.
Larson Lowell A.
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