Abstract: A system for assembling roofing at ground level has an adjustable-length center frame separating a first assembly side from a second assembly side; a first cantilevered gantry on the first assembly side and a second cantilevered gantry on a second side, each cantilevered gantry moveable along the length of the center frame; a plurality of outrigger beams coupled to opposing ends of the center beam, each outrigger beam having a catwalk thereon; a first joist railing and a second joist railing on each assembly side, each joist railing configured to receive an end of an open web joist; and a base frame comprising a plurality of wheels. Once the roofing section has been assembled, hoisting the assembled roofing section to the top of a structure.

Abstract: A system for assembling roofing at ground level has an adjustable-length center frame separating a first assembly side from a second assembly side; a first cantilevered gantry on the first assembly side and a second cantilevered gantry on a second side, each cantilevered gantry moveable along the length of the center frame; a plurality of outrigger beams coupled to opposing ends of the center beam, each outrigger beam having a catwalk thereon; a first joist railing and a second joist railing on each assembly side, each joist railing configured to receive an end of an open web joist; and a base frame comprising a plurality of wheels. Once the roofing section has been assembled, hoisting the assembled roofing section to the top of a structure.

Abstract: A method of orienting a selected item from a stack of similar items, the method comprising the steps of separating, engaging and orienting. The separating step separates the selected item from the stack using a first attraction force of a transport apparatus. The engaging step engages the selected item with a second attraction force from the transport apparatus. The second attraction force being greater than the first attraction force. The orienting step orients the selected item relative to the transport apparatus as the transport apparatus is en route to a destination location.

Abstract: An object of the invention is to provide a food and drink conveying device that can allow a travel body to travel stably over a travel path. A food and drink conveying device (1) can allow a travel body (7) to travel over a travel path (1a) using a magnetic force between a first magnetic body (18) and a second magnetic body (19) by driving a conveyor driving body (15) and is provided with a lift preventing means (34) in close proximity to the second magnetic body (19), where the lift preventing means (34) makes contact with the travel path (1a) so as to prevent the second magnetic body (19) from lifting due to the magnetic force between the first magnetic body and the second magnetic body (19) and moves together with the conveyor driving body (15).

Abstract: A stack of magnetized casing tubulars includes a plurality of magnetized wellbore tubulars each of which includes a plurality of north and south magnetic poles imparted to a corresponding plurality of longitudinal positions along the tubulars. The plurality of wellbore tubulars are arranged into a stack having at least two rows and at least two columns, the wellbore tubulars are stacked side by side and atop one another such that the magnetic poles on one tubular are radially aligned with magnetic poles of an opposite polarity on adjacent tubulars. Such a configuration advantageously substantially eliminates weakening of the imparted magnetic field due to interaction of the magnetic poles on adjacent tubulars.

Abstract: A parts holding device that includes a holder with a row of spaced-apart cavities, within which parts may be disposed. A bar containing a plurality of spaced-apart permanent magnets is movably mounted to the holder and is disposed parallel to the row of the cavities. The bar is movable in the direction of the row of the cavities between first and second positions. When the bar is in the first position, the magnets are aligned with the cavities and the magnetic attraction forces generated by the magnets hold the parts in the cavities, and when the bar is in the second position, the magnets are not aligned with the cavities and the magnetic attraction forces generated by the magnets do not hold the parts in the cavities. The parts holding device is connected to a movable mounting structure for movement therewith. The bar is biased to the first position and is moved to the second position by movement of the bar against a cam surface.

Abstract: Device for separating, lifting and transporting sheets of aluminium or other non-ferromagnetic material consisting of a spider attraction assembly provided with a series of blocks of magnets and with contact electrodes, which by way of the effects produced by Lorentz forces, together with the action of a series of vacuum pads, is provided with the capacity to attract sheets of aluminium.

Abstract: A system for transferring a steel slab from a first roller table to a second roller table by lifting the top slab from a stack of slabs on the first table, and then transferring and lowering the slab onto the second table. Specifically, a gantry-type bridge trolley mechanism having suspended electromagnets is provided that is motor driven on a cantilevered runway over the slab unpiler table and the furnace table. A stabilizer system minimizes sway of the electromagnets and the slabs.

Abstract: An automated container management system including at least one robotic device, a container inverting apparatus, a conveyor system, a container stack, and a storage and retrieval system transfer vehicle. The first and second robotic devices each having a container cooperation head. The container cooperation head has pneumatically driven magnetic lift assemblies for stacking and unstacking multiple containers as a single unit between the conveyor system and the container stack. The container storage and retrieval system transfer vehicle services the container stack. An inverting apparatus inverts the multiple containers before stacking and after unstacking to facilitate storage of the multiple containers in an inverted position.

Abstract: Wafers are separated individually from a stack by directing multiple jets of fluid between an outermost wafer in the stack and an adjacent wafer. The jets have sufficient pressure and are sufficiently spaced apart around the wafer stack to cause the outermost wafer to separate longitudinally from the adjacent wafer without lateral movement there between. In the illustrated embodiment, a chuck is attached to a planar surface of the outermost wafer. The attached wafer and wafer stack, once separated by the jet of fluid, are moved relatively apart, such as by movement of the chuck. The wafers in the stack are thereby separated without contact between a wafer edge and a solid object (such as a container wall or hand), minimizing the risk of wafer breakage.

Abstract: It is known to utilize magnets to assist in separating individual blanks from a stack of blanks. The invention utilizes a pressurized fluid, for example pressurized air, to separate one blank from another. The pressurized air system is utilized in a combination with a pick up device which can pick up individual blanks which are separated from a stack with the assistance of the pressurized air system. Suction cup assemblies located, and providing lift, at the edges or corners of the blank can operate to assist in peeling upwards the edges or corners of the top blank on the stack. These edge or corner mounted suction cup assemblies may be actuated by reciprocadg air cylinders, and may work in conjunction with the pressurized air system.

Abstract: A transportation mechanism of magnetic handling for accessing Compact Disks. The transportation mechanism includes a reciprocating device having a base, an electromagnetic head provided on the base, a control unit controlling the reciprocating device such that the base is reciprocated between different processing positions, and a magnetic spacer. The Compact Disk, sandwiched by the electromagnetic head and the magnetic spacer as the magnetic spacer is attracted by the electromagnetic head, is further transported by the transportation mechanism whereby the damage due to bad suction for CDs is minimized. Comparing with the conventional suction means by vacuum, the transportation mechanism of the invention is also advantaged for the simple structure, easy maintenance, and low cost, thereby raising the production yield.

Abstract: A transfer apparatus for articles is provided comprising: