Abstract: A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and a trailing edge (52) respective to rotation of the first roll unit (32), a second die support (46) carried by the second roll unit (34), having a leading edge (51) and a trailing edge (52) respective to rotation of the second roll unit (34), the first and second roll units (32, 34) receiving a web workpiece (12) in a forming plane between the first and second roll units (32, 34), and in which each die support (46) includes a first part (46a) carried by the respective roll unit and including the leading and trailing edge and a second part (46b) having a platen surface for mounting a die, the second part (46b) being mounted on the first part (46a) for reciprocal motion transverse to the leading and trailing edges (51, 52).

Abstract: A roller die apparatus for supporting pairs of roller dies in predetermined clearances for processing a web workpiece, and for varying the clearances between the dies to accommodate variations in the thickness of a web workpiece and having first and second roller dies rotatably mounted on respective roller die bearings, one of the first and second roller dies being moveable both upwardly and downwardly transversely to its axis of rotation, and being moveable axially along its axis of rotation, thereby achieving adjusting of the die clearance between the first and second roller dies in two planes. The two adjustments take place simultaneously so as to cause an adjustment movement in a diagonal direction, as between one die and the other in each pair.

Abstract: A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and a trailing edge (52) respective to rotation of the first roll unit (32), a second die support (46) carried by the second roll unit (34), having a leading edge (51) and a trailing edge (52) respective to rotation of the second roll unit (34), the first and second roll units (32, 34) receiving a web workpiece (12) in a forming plane between the first and second roll units (32, 34), and in which each die support (46) includes a first part (46a) carried by the respective roll unit and including the leading and trailing edge and a second part (46b) having a platen surface for mounting a die, the second part (46b) being mounted on the first part (46a) for reciprocal motion transverse to the leading and trailing edges (51, 52).

Abstract: A construction panel for use in the erection of buildings comprising a panel of castable construction material of predetermined thickness, and having first and second sides; a plurality of structural members, reinforcing the panel on one side, at least some of the structural members comprising a generally linear edge, and a generally zig-zag edge, and a web extending between the linear edge and the zig-zag edge, the zig-zag edges defining apexes, and root portions; the apexes, being embedded in one side of the panel thereby securing at least some of the structural members to the panel; recesses formed in the web extending substantially from the apexes to the root portions; and, generally triangular indentations formed in the web throat portions adjacent to but spaced from the recesses. Also disclosed is a method of constructing a level portion of a building.

Abstract: A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and a trailing edge (52) respective to rotation of the first roll unit (32), a second die support (46) carried by the second roll unit (34), having a leading edge (51) and a trailing edge (52) respective to rotation of the second roll unit (34), the first and second roll units (32, 34) receiving a web workpiece (12) in a forming plane between the first and second roll units (32, 34), and in which each die support (46) includes a first part (46a) carried by the respective roll unit and including the leading and trailing edge and a second part (46b) having a platen surface for mounting a die, the second part (46b) being mounted on the first part (46a) for reciprocal motion transverse to the leading and trailing edges (51, 52).

Abstract: A two stage die set for sequentially blanking an opening in a work piece, and thereafter forming edges of the work piece around the opening and having a male die assembly, having a male blanking die, a male forming die spaced from the male blanking die, and a recess therebetween, a female die assembly having a generally hollow female die sleeve, the die sleeves being shaped and dimensioned to correspond to the shape of the male blanking die and to receive it in telescopic relation, a moveable support plate located around the female die sleeve the moveable plate being biassed so as to urge it into a first extended position, and the moveable plate yielding to the male forming die of the male die assembly, when the male and female dies are closed together, so that the male blanking die, in co-operation with the female die sleeve blanks out a portion of a work piece and forms an opening, and upon further relative movement between the male and female dies towards one another, the male forming die co-operates with

Abstract: A sheet metal structural member for use in the formation of a cast construction panel which member, in turn, comprises a sheet metal web defining a linear edge along one side, and a zig-zag edge along the other side, the zig-zag edge defining wider regions, and narrower regions between the wider regions, and the web extending in a generally triangular fashion from one narrower region through a wider region to the next narrower region, edge formations formed around the zig-zag edge portions of the web and, recesses formed in the wider portions of the web. The apex of each of the wider portions of the web, which may be secured to a construction material to form a panel.

Abstract: This specification discloses strip sheet metal panels formed with transverse indentations and longitudinal formations formed therein, with end portions at each end of said panels being free of said transverse indentations.

Abstract: A rotary embosser for embossing strip sheet metal and having a male embossing roll having a series of upstanding die formations thereon around which the sheet metal runs. One or more indentation rolls having a resilient roll surface are arranged to run in pressurized contact with said embossing roll, said resilient surface being sufficiently resilient to permit indentation of said resilient surface by said male die formations. One indentation roll may be arranged to run in contact with the embossing roll at a point around the circumference thereof spaced down stream from the contact between said embossing roll and the other indentation roll thereby applying tension and pressure to the strip thereby holding the strip in position as it passes around the embossing roll. Tension roll means is arranged upstream around which said sheet metal strip runs, whereby said sheet metal strip is maintained in tension as it passes around both the indentation roll and said embossing roll.

Abstract: An anti-backlash gear system for use between a drive shaft and a driven shaft and wherein one said shaft is provided with a gear having helical teeth thereon, said anti-backlash system comprising a gear portion fixed to the other said shaft, and meshing with said helical gear, said gear portion having a width less than the width of said helical gear, a movable gear portion, slidably mounted on said shaft, and being slidable therealong towards and away from said fixed gear portion, said movable gear portion having a width less than that of said helical gear, and having helical teeth meshing therewith, spring means engaging said movable gear portion, and urging the same normally away from said fixed gear portion, and adjustable means for moving said movable gear portion towards said fixed gear portion, against the pressure of said spring.

Abstract: This specification discloses strip sheet metal panels formed with transverse indentations and longitudinal formations formed therein, with end portions at each end of said panels being free of said transverse indentations;And a method of cold rolling strip sheet metal to form both transverse and longitudinal indentations and formations therein, and discontinuing formation of said transverse indentations at predetermined spaced intervals along such sheet metal, and shearing the sheet metal in measured relation to such spaced intervals;And further dicloses apparatus for embossing sheet metal, in a sheet metal forming line adapted to form both transverse and longitudinal indentations in said sheet metal, and in which said forming line includes sheet metal delivery means, and a plurality of sheet metal roller stands for forming said longitudinal indentations and in which said embossing apparatus incorporates tension roll means located and adapted to receive said sheet metal from said sheet metal delivery means, e

Abstract: A rotary chopper having upper and lower chopper rolls, in which the rolls run in contact with one another, with the chopper blades being formed flush with the surface of the rolls, the surface of the rolls between the chopper blades being formed of a relatively hard stiff resilient material, of such a nature, that at least adjacent to the location of the chopper blades themselves, it may be deflected inwardly to accomodate the overlap of the chopper blades, and then will spring outwardly again so as to constitute the smooth cylindrical surface of the roll. In this way, the scrap edge portion of the strip is permanently gripped between the nip of the rolls at all times, and at the same time the fan-like action of the blades is eliminated, since they are flush with the surface of the rolls.