Rolling apparatus

Claim 1

An apparatus for simultaneously rolling and securing, in a longitudinal direction, the transversely extending edges of an elongate sheet material along and around the underlying outer edges of opposed parallel frame members, said apparatus including first and second transversely and rigidly interconnected allochiral tool assemblies, wherein each of said assemblies comprises: a. a carriage assembly movable along the surface of said sheet material at the outer edge of one of said frame members; b. longitudinally spaced and vertically disposed first and second upper guide rolls, carried by said carriage assembly, for rotatably contacting a first surface of said sheet material; c. a vertically disposed first lower guide roll carried by said carriage assembly and vertically aligned with said first upper guide roll, for rotatably contacting a lower surface of said frame member outer edge; d. a vertically disposed second lower guide roll, carried by said carriage assembly and vertically aligned with said second upper guide roll, for rotatably contacting a second surface of said sheet material; e. a plurality of form rolls carried by said carriage assembly, longitudinally in tandem, between said first and second upper and lower guide rolls, respectively, for progressively bending the transversely extending edge of said elongate sheet material along and substantially complete around the underlying outer edge of said one frame member; and f. a horizontally disposed edge roller, carried by said carriage assembly between, but transversely spaced from, said vertically disposed second upper and lower guide rolls, said edge roller contacting the generally vertically outer edge of said sheet material after it is bent around said frame outer edge by said form rolls, said edge roller coacting with said second upper and lower guide rolls to complete an about 180* bend of said sheet material, said edge roller also minimizing any undesired skewing movement of said tool assembly about an axis perpendicular to the surface of said sheet material.

Claim 2

An apparatus for simultaneously rolling and securing, in a longitudinal direction, the transversely extending edges of an elongate sheet material along and around the underlying outer edges of opposed parallel frame members, said apparatus including first and second transversely and rigidly interconnected allochiral tool assemblies, wherein each of said assemblies comprises: a. a carriage assembly movable along the surface of said sheet material at the outer edge of one of said frame members; b. longitudinally spaced and vertically disposed first and second upper guide rolls, carried by said carriage assembly, for rotatably contacting a first surface of said sheet material; c. a vertically disposed first lower guide roll carried by said carriage assembly and vertically aligned with said first upper guide roll, for rotatably contacting a lower surface of said frame member outer edge; d. a vertically disposed second lower guide roll, carried by said carriage assembly and vertically aligned with said second upper guide roll, for rotatably contacting a second surface of said sheet material; e. a plurality of form rolls carried by said carriage assembly, longitudinally in tandem, between said first and second upper and lower guide rolls, respectively, for progressively bending the transversely extending edge of said elongate sheet material along and substantially complete around the underlying outer edge of said one frame member; and f. a horizontally disposed edge roller, carried by said carriage assembly between, but transversely spaced from, said vertically disposed second upper and lower guide rolls, said edge roller contacting the generally vertically outer edge of said sheet material after it is bent around said frame outer edge by said form rolls, said edge roller coacting with said second upper and lower guide rolls to complete an about 180* bend of said sheet material, said edge roller also minimizing any undesired skewing movement of said tool assembly about an axis perpendicular to the surface of said sheet material.