Electric heating – Metal heating – Of cylinders
Patent
1977-07-22
1983-02-08
Kucia, Richard R.
Electric heating
Metal heating
Of cylinders
219 60R, 219 61, 21912511, B23K 3702
Patent
active
043731252
ABSTRACT:
A welding apparatus for pipes which provides for a guide means which is to be fixedly secured to the pipe adjacent the welding area, a first carriage and a second carriage is movably supported upon the guide means with each of the carriages supporting a pair of spaced apart welding heads. Attached to the guide means is a driving chain. Mounted on each of the carriages are motor means which, in turn, operate through the driving chain to move the carriages in a prescribed manner with respect to the guide means. The welding heads of each of the carriages move within the same plane but each are movable in a separate one hundred and eighty degree arc thereby forming a continuous circle. Associated with each welding head is a weld groove tracking system which automatically maintains each welding head correctly aligned within the welding groove. The entire apparatus of this invention, when combined with appropriate electronic computer equipment, automatically welds an adjoined pair of piping sections.
REFERENCES:
patent: 3188445 (1965-06-01), Rieppel
patent: 3193656 (1965-07-01), Bell
patent: 3207881 (1965-09-01), Pagan
patent: 3268708 (1966-08-01), Thomas
patent: 3753525 (1973-08-01), Homes
patent: 3783223 (1974-01-01), Gwin
patent: 3974356 (1976-08-01), Nelson
patent: 4015086 (1977-03-01), Thatcher
patent: 4019016 (1977-04-01), Friedman
Astro-Arc Company
Geauque Robert E.
Kucia Richard R.
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