Metal deforming – Process – Tube making or reshaping
Patent
1975-01-08
1976-06-08
Lanham, C. W.
Metal deforming
Process
Tube making or reshaping
29191, 29194, 29423, 72393, B21B 1702
Patent
active
039615162
ABSTRACT:
An apparatus and method for re-forming and maintaining the circular shape of a deformed roll of material includes a forming means having a rigid arcuate pressure pad adapted to press against and shape an inner surface portion of a coiled roll of material, such as steel, aluminum, or other material adapted to be mounted for rotation in a sheeting operation wherein a web of the material is withdrawn from the roll and cut into predetermined lengths. Hydraulic jacking means carried by a rigid plate disposed as a geometric chord between the ends of the arcuate pressure pad serves to force deformed portions of the center opening of the coil outwardly as the jacking means is operated. A pair of such pads is disposed in opposed relation within the center opening of the coil and an expansible sleeve or liner disposed about the two pads. The liner includes a band of semi-rigid material wrapped cylindrically to dispose the end edges of the band in closely spaced confronting relation separated by a gap therebetween. Arcuate extension plate means extends across the gap and overlays the end margins of the band so as to protect and support the ends of the band during expansion and contraction of the liner. Upon fully expanding the liner, an elongate spacer plate dimensioned and adapted to be interposed between the end edges of the liner retains the edges in predetermined spaced relation for establishing the outer diameter of the liner to correspond to the diameter of the center opening of the coil so as to maintain the cylindrical nature of the coil.
REFERENCES:
patent: 972667 (1910-10-01), Wheeler
patent: 1623405 (1927-04-01), Gocke et al.
patent: 1922716 (1933-08-01), Robinett
patent: 3292903 (1966-12-01), Meyer et al.
patent: 3625046 (1971-12-01), Van Gompel
patent: 3677058 (1972-07-01), Van Gompel
Duzan James R.
Lanham C. W.
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