Machine and a method for fabricating a helicoidal tube

Details Machine and a method for fabricating a helicoidal tube Machine and a method for fabricating a helicoidal tube

1975-11-05

1976-07-20

Smith, Al Lawrence

Metal fusion bonding

With means to deform work, filler, or flux portion before...

Comprising means forming one-piece blank into a tubular shape

228146, 72137, 72140, 72 52, 291606, A44C 2700, B21C 108, B21D 510

Patent

active

039702332

ABSTRACT:
A machine for fabricating a helicoidal tube from a longitudinal flat and bendable strip includes a frame, and tube-forming means disposed on the frame for receiving the longitudinal flat strip. The strip is then formed into a tube which has a seam. Helicoid-forming means are disposed on the frame for receiving the tube and for the forming thereof into a helicoid.

REFERENCES:
patent: 456059 (1891-07-01), Prentice
patent: 921722 (1909-05-01), Meyer
patent: 1488585 (1924-04-01), Bundy
patent: 1892607 (1932-12-01), Bundy
patent: 2229149 (1941-01-01), Wacker
patent: 2229462 (1941-01-01), Kurtz

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