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US 3,961,516 AGranted
Apparatus and method for re-forming and maintaining the circular shape of a deformed roll of material
OwnerJack E. Priesterinventor
Life of this patent
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OwnerJack E. Priesterinventor
Estimating the term…
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aluminum, or other material adapted to be mounted for rotation in a sheeting operation wherein a web of the material is withdrawn from the roll and cut into predetermined lengths.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.
A method for re-forming a deformed annular coil of material of a type to be unwound from the coil and cut into predetermined lengths thereof and for preserving the re-formed shape of said coil comprising the steps of inserting into the center opening of said coil a radially expansible annular coil liner formed of a band of material wrapped cylindrically to dispose the end edges of said band in closely spaced confronting relation separated by a gap therebetween, radially urging said liner from within said center opening with sufficient force to round out and re-form the center opening and coil while spacing the confronting ends of said liner, inserting a spacer element between the spaced apart ends of said liner to retain said liner in its expanded condition upon release of the radial urging, and thereafter removing means for radially expanding said liner from said center opening.
Apparatus for re-forming a deformed annular coil of material comprising forming means adapted to be inserted into the open center of the coil, said forming means having a pair of rigid arcuate pressure pads each adapted to press against and conform to an associated inner surface portion of the coil, hydraulic jacking means extensible between retracted and advanced positions, rigid plate means disposed as a chord between the ends of each said arcuate pressure pads, means rigidly supporting each said plate means from an associated one of said pressure pads, each said plate means being disposed and adapted to support said hydraulic jacking means thereon when said forming means has been disposed within said deformed coil to permit the jacking means to extend and conjointly urge said pressure pads toward said inner surface portions to round out said coil in the region of said inner surface portions, and a radially expansible coil liner formed of a band of material wrapped cylindrically to dispose the end edges of said band in closely spaced confronting relation separated by a gap therebetween so as to permit said liner to be radially enlarged, said liner being disposed about and carried by said pair of pressure pads for expansion therewith under action of said jacking means, and first and second arcuate extension plates secured respectively to the outer surface of opposite end margins of said liner, each said first and second plates bridging said gap sufficiently to overlay an end margin of said liner on the opposite side of said gap, whereby upon expansion of said liner said first and second plates serve to support the end margins of said liner.
In combination a coil of material of a type to be unwound and cut into predetermined lengths comprising a radially expansible annular core liner within said coil, said liner being formed of a band of material wrapped cylindrically to dispose the end edges of said band in spaced confronting relation separated by a gap therebetween, arcuate extension plate means carried by said liner and extending across said gap in supporting relation to the end margins of said liner, and an elongate spacer plate interposed between said end edges to retain said edges in predetermined spaced relation for maintaining the outer diameter of said liner at an expanded condition thereof to correspond to the diameter of the center opening of the coil.
A radially expansible annular coil liner adapted to retain the center opening of a coil of material, said liner comprising a band of material wrapped cylindrically to dispose the end edges of said band in closely spaced confronting relation separated by a gap therebetween, first and second arcuate extension plates secured respectively to the opposite end margins of said band, each said first and second arcuate plate extending across said gap in overlapping radially supporting relation to an end margin of said liner, and an elongate spacer plate dimensioned and adapted to be interposed between said end edges to retain said edges in predetermined spaced relation for establishing the outer diameter of said liner to correspond to the diameter of the center opening of the coil.
A radially expansible annular coil liner adapted to retain the center opening of a coil of material, said liner comprising a band of material wrapped cylindrically to dispose the end edges of said band in closely spaced confronting relation separated by a gap therebetween, arcuate extension plate means disposed to extend across said gap in radially supporting relation to the opposite end margins of said band during expansion and contraction of said band liner.
Dependencies are inferred from the claim text.