Method and apparatus for producing helically-wound lock-seam tub

Details Method and apparatus for producing helically-wound lock-seam tub Method and apparatus for producing helically-wound lock-seam tub

1995-06-30

1997-03-04

Larson, Lowell A.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

72 49, 72 43, B21B 4502, B21C 3712

Patent

active

056068840

ABSTRACT:
In a method and an apparatus for producing helically-wound lock-seem tubing from a metal strip having longitudinal edge portions, the strip is fed to a forming head and formed into helical shape. A lubricant is locally supplied on that side of the strip which forms the outside of the tube, said lubricant being supplied over only a limited portion of the width of the strip.

REFERENCES:
patent: 2136943 (1938-11-01), Freeze
patent: 3750439 (1973-08-01), Pratt
patent: 4597276 (1986-07-01), Legallais et al.
patent: 4706481 (1987-11-01), Castricum
patent: 4895011 (1990-01-01), Varga
patent: 5079939 (1992-01-01), Shook

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