Metal deforming – By tool-couple pressing together adjacent surface portions... – To form helically-seamed tube
Patent
1986-01-23
1986-11-18
Combs, E. Michael
Metal deforming
By tool-couple pressing together adjacent surface portions...
To form helically-seamed tube
72 50, 72135, B21C 3712
Patent
active
046228381
ABSTRACT:
Apparatus for helically curling longitudinally corrugated thin strip material into a flexible corrugated tube has a curling unit with driven input rollers forming a nip that matches the strip, and a cassette for a reel of the material which is connected to said unit and has strip guide rollers immediately adjacent the input rollers. The curling unit has driven output rollers on an upright support to drive the strip, and a spider which is vertically adjustable on the support and carries strip guide rollers which are on spindles equidistant from the longitudinal axis of the forming tube, and radially adjustable, so that adjustment of the spider on the support and the spindles on the spider permits the unit to form tubes of different diameters. A locking mechanism intermittently crimps overlapping parts of the forming tube. A bending device aids in forming relatively stiff strip stock, and also aids in forming softer stock into very small diameter tubes.
REFERENCES:
patent: 3472463 (1969-10-01), Fedor et al.
patent: 3538728 (1970-11-01), Trihey
patent: 3815639 (1974-06-01), Westerbarkey
patent: 3865146 (1975-02-01), Messerole
patent: 4058997 (1977-11-01), Siegwart
patent: 4114432 (1978-09-01), Miura et al.
patent: 4141385 (1979-02-01), Siegwart
patent: 4337564 (1982-07-01), Menzel et al.
patent: 4337864 (1982-07-01), McLean
patent: 4353232 (1982-10-01), Viesters et al.
Gohl advertising piece.
Combs E. Michael
Security Lumber & Supply Co.
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