Abstract: A drum assembly includes a support bar, expandable spokes extending away from the support bar, drum segments mounted to the expandable spokes, support brackets disposed on the support bar, a primary mechanical actuator extending between the support brackets, and secondary mechanical actuators extending from the support brackets.

Abstract: A system includes a collapsible trailer frame and a lifting mechanism coupled to the collapsible trailer frame. The lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe. The system also includes a braking mechanism.

Abstract: A drum assembly having a post, and first and second spoke frames. Each of the first and second spoke frames includes expandable spokes and immovable spokes, extending away from the post. Each expandable spoke includes a distal end movable between a retracted position and an extended position. A plurality of first drum segments each are mounted to the distal end of one of the expandable spokes of the first spoke frame and to the distal end of one of the expandable spokes of the second spoke frame. A plurality of second drum segments each mounted to an end of one of the immovable spokes of the first spoke frame and to an end of one of the immovable spokes of the second spoke frame. Mechanical actuators, extending between the post and either the expandable spokes or the first drum segments, move the expandable spokes between the retracted and extended positions.

Abstract: A sheet rolling device includes a mandrel that selectively retains the sheet stock between a sidewall of the mandrel and a gripper blade of the mandrel. The sheet rolling device also includes a sensor that detects a presence and an absence of the sheet stock near the mandrel, a controller operably associated with the mandrel so as to cause a motor to rotate the mandrel to wind the sheet stock around the mandrel, and an expansion leaf operably associated with the controller and situated along at least a portion of an exterior of the sidewall of the mandrel. Extension of the expansion leaf away from the sidewall increases an effective perimeter of the mandrel about which the sheet stock may be wound and retraction of the expansion leaf toward the sidewall decreases the effective perimeter of the mandrel about which the sheet stock may be wound.

Abstract: A winding reel for a band-shaped material that makes it possible to remove the wound band-shaped material by a simple operation, without adjusting the winding speed of the band-shaped material. A winding reel for a band-shaped material is configured by attaching an outer circumferential member to a member with a reducing outer diameter of an inner circumferential member. The outer diameter of the member with a reducing outer diameter and the inner diameter of mating members that constitute the outer circumferential member decrease from the base end side toward the distal end side. In the outer circumferential member attached to the member with a reducing outer diameter, the inner surfaces of the mating members are brought into contact with the outer surface of the member with a reducing outer diameter and supported by the outer surface of the member with a reducing outer diameter.

Abstract: A core assembly for a continuous sheet includes a core of a cylindrical form. A side channel is formed in the core to extend fully in an axial direction thereof. A shaft hub is disposed through the core movably in the axial direction. A changing unit or adjuster displaces the core in response to moving of the shaft hub between first and second positions, and enlarges an outer diameter of the core when the shaft hub is in the second position than when the shaft hub is in the first position. Preferably, the changing unit includes a cam roller, disposed on the shaft hub, for projecting in a radial direction. A cam ramp surface is formed with an inner surface of the core, has a height increasing toward the second position, is pressed by the cam roller.

Abstract: A recoiler/uncoiler for use in a line processing sheet material includes a segmented drum that is expandable from a contracted position to an expanded position. To enable the drum to accommodate coils of sheet material having different internal diameters, a sleeve consisting of sleeve segments which match the segments of the drum is installed on the drum and is expandable and contractible therewith. A cradle moved by a coil cart is transportable to a position circumscribing the sleeve. The cradle includes magnets which hold the sleeve in the expanded position after the sleeve is disengaged from the drum, to thereby permit removal of the sleeve. When the sleeve is reinstalled on the drum, the cradle transports the sleeve to its position circumscribing the drum, the drum is then expanded, and the sleeve is secured to the drum, whereupon the cradle is transported away from the drum and sleeve.

Abstract: A rotary chuck for winding magnetic tape aligns the winding hub in both the axial and radial directions relative to the axis of winding rotation. This allows higher winding speeds to be used and produces finished rolls of improved quality. Alignment occurs upon application of air pressure to the rotary chuck. The rotary chucks can be placed side-by-side on a single mandrel for winding multiple strands simultaneously. Winding hubs can be easily slipped on and off the rotary chucks to improve winding productivity.