Electric heating – Metal heating – Of cylinders
Patent
1972-12-11
1976-03-16
Albritton, C. L.
Electric heating
Metal heating
Of cylinders
219 59, B23K 3106
Patent
active
039447758
ABSTRACT:
An internal spreader bar provides control of the convergence point and convergence angle of opposite electrically heated edges of a skelp during a tube seam welding operation and other controls are practiced to increase weld pressure at the faying surfaces.
REFERENCES:
patent: 611222 (1898-09-01), Ries
patent: 2774857 (1956-12-01), Rudd et al.
patent: 3414697 (1968-12-01), Rudd
patent: 3648008 (1972-03-01), Kawato et al.
Albritton C. L.
Tenneco Inc.
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