Abstract: A pallet cover has a top panel and side panels hinged to the top panel for swinging movements from a substantially vertical position depending from the top panel through an arc sufficient to enable each side panel to overlie the top panel. The pallet is provided with supports which enable it to be stacked with one or more other pallets and the cover is notched to accommodate the stacking supports and provide an interlock therewith to ensure retention of the cover on the associated pallet.

Abstract: Workpiece transfer support apparatus has a housing having a chamber therein for the removable accommodation of a support body which may be equipped with a workpiece engaging and supporting member. That portion of the support body which is accommodated in the chamber is engaged by and urged into a seating position with seating surfaces within the chamber. A locking bolt is movable into and out of engagement with the support member when the latter is within the chamber and acts on such support member to maintain it in snug engagement with the seating surfaces. A safety latch is provided to avoid inadvertent removal of the support body from the chamber of the housing.

Abstract: A pallet cover has a top panel and side panels hinged to the top panel for swinging movements from a substantially vertical position depending from the top panel through an arc sufficient to enable each side panel to overlie the top panel. The pallet is provided with supports which enable it to be stacked with one or more other pallets and the cover is notched to accommodate the stacking supports and provide an interlock therewith to ensure retention of the cover on the associated pallet.

Abstract: A magnetic fanner for providing a gap between stacked, magnetically permeable sheets has a housing formed of non-magnetically permeable material defining a sealed chamber within which a piston is reciprocable between a first position in which magnets carried by the piston are adjacent the stacked sheets to another position in which the magnets are remote from the stacked sheets. The piston is movable in response to the presence of unequal fluid pressures in the housing on opposite sides of the piston and pressurized fluid may be delivered to a selected side of the piston in controlled relation to the exhaust of pressure fluid from the opposite side of the piston. Pressure fluid delivery and exhaust is obtained via passages in rods which span the housing chamber and guide the piston during its movements.

Abstract: Articulating workpiece transfer apparatus comprises a pair of identical housings each of which has a circular flange projecting from one side of the housing and abutting one another. Each flange has adjacent its periphery a beveled edge. A circular clamp has a concave groove in which the peripheral edges of the flanges are accommodated, and such clamp is operable to apply a clamping force on each flange urging the latter into face-to-face engagement with one another. Each housing has a cylindrical opening for the accommodation of an elongate transfer arm which is linearly slideable and rotatable about the axis of the arm. Each housing includes a clamp which enables and disables relative movement between the associated arm and the housing. The housings are rotatable relative to each other about an axis which passes through both flanges and which is normal to the axis of rotation of the respective transfer arms.

Abstract: An accumulating conveyor assembly has an endless, continuously moving conveyor member defining a closed path having inside and outside edges. A plurality of workpiece supports are coupled to the conveyor member for movement with and relative to the latter. The supports are substantially vertical and are at the outer edge of the path so that a workpiece supported on the support is accessible at any position along the path. Arresters are movable into and out of the path of movement of the supports so as respectively to disable and enable conjoint movement of the supports and the conveyor member.

Abstract: A magnetic separator for separating magnetically permeable, stacked sheets has permanent magnets mounted on a movable support for movements toward and away from the stack of sheets. The magnets normally occupy a position closely adjacent the stack of sheets but are movable away from such position in response to inflation of inflatable and deflatable air bag activators. Deflation of the air bag actuators enables biasing springs to return the magnets to the normal position. The rate of inflation and deflation of the actuators is controllable so as to regulate the rate of movement of the magnets.

Abstract: Die presses containing removable dies and arranged in a row for operating successively on a workpiece which traverses such row utilize movable die carts which not only are capable of substituting one set of dies for the dies in the presses, but which also effect transfer of workpieces between successive presses.

Abstract: A workpiece transfer arm for supporting and moving a workpiece from one position to another has a telescopic arm one end of which is secured to a mounting bracket and the opposite end of which carries a workpiece support for engagement by the workpiece. The telescopic arm has a rod accommodated in a sleeve. The rod has a plurality of annular grooves occupied by a thermoplastic adhesive which, when at ambient temperature, is solid and fixes the rod in the sleeve. At elevated temperatures, however, the adhesive liquefies and enables relative movement between the sleeve and the rod to enable the position of the workpiece support to be adjusted.

Abstract: A circuit for protecting electronic equipment such as computers, laser printers, fax machines, and the like from damage due to electrical transients associated with a temporary power interruption is connectable between a source of A.C. power and the electronic equipment. The circuit disconnects the equipment from the power source during a temporary power outage and maintains the equipment disconnected from the A.C. power until transients in the line voltage have abated. The circuit reconnects the equipment to the A.C. power source after a preselected time delay from the initial power interruption. The circuit keeps track of time during a power interruption without the use of batteries.

Abstract: A set-screw bushing including integral electrical clamp for connection to the end of a threaded pipe, although in some instances the invention is usable with an unthreaded pipe, the bushing of this invention including clamping means for securing an electrical conductor to the bushing. The bushing and the clamping means are preferably cast as an integral unit of metal. The clamping means include a c-shaped member defining an open mouth with a lip to receive various sized electrical conductors. An adjustable lug screw extends into the mouth to secure a conductor to the lip when the screw is tightened.The bushing preferably has a plain or unthreaded inner wall with the bushing being secured over the pipe by means of an adjustable set-screw extending through the bushing wall. A tab extends from the bushing wall to limit the amount of engagement between the bushing and the pipe.