Electric heating – Metal heating – By arc
Patent
1978-09-13
1980-11-04
Envall, Jr., Roy N.
Electric heating
Metal heating
By arc
219 72, 21912432, B23K 932, B23K 912, B23K 928
Patent
active
042322090
ABSTRACT:
Apparatus for welding a stiffening member or the like to a plate in which a box is provided having an opening in one wall thereof through which the stiffening plate enters the box. A plurality of guides are mounted to the box for holding welding rods in proximity to the place where the stiffener is to be welded to the plate. A suction source is attached to the box for removing gases, fumes and other like materials produced during the welding operation and the box is positioned relative to the plate and the stiffener.
REFERENCES:
patent: 2336283 (1943-12-01), Neill
patent: 2470178 (1949-05-01), Madsen
patent: 3849626 (1974-11-01), Linam et al.
patent: 4045647 (1977-08-01), Thome
The Welding Distributor; Jan./Feb. 1971, pp. 23-26 "Minimizing The Welding Fume Danger" by Ted B. Jefferson.
Envall Jr. Roy N.
George Keith E.
Pedersen Einar
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