Abstract: A system for supporting loads includes a track having uniformly spaced apertures separated by necks. A bracket is mounted on the track and has two groups of studs which are positioned in the necks and prevent the bracket from pulling away from the track. Neighboring studs in both groups have identical center-to-center spacings. Two plugs pass through holes in the bracket and into respective ones of the apertures. The plugs fix the bracket against movement relative to the track longitudinally and transversely of the latter. The distance between a plug hole and any stud equals one-half the center-to-center spacing of neighboring studs of a group or an integral multiple of one-half such spacing. A locking member passes through an additional hole in the bracket and frictionally engages the track to prevent the plugs from pulling out of the respective apertures during an impact.

Abstract: A system for supporting loads includes a track having uniformly spaced apertures separated by necks. A bracket is mounted on the track and has two groups of studs which are positioned in the necks and prevent the bracket from pulling away from the track. Neighboring studs in both groups have identical center-to-center spacings. Two plugs pass through holes in the bracket and into respective ones of the apertures. The plugs fix the bracket against movement relative to the track longitudinally and transversely of the latter. The distance between a plug hole and any stud equals one-half the center-to-center spacing of neighboring studs of a group or an integral multiple of one-half such spacing. A locking member passes through an additional hole in the bracket and frictionally engages the track to prevent the plugs from pulling out of the respective apertures during an impact.

Abstract: A mobile lifting device includes a car having a gate and a docking plate mechanically interconnected at one end of the car. A low voltage DC control system includes an “up” circuit, a “down” circuit connected in parallel with the up circuit, and a sensor circuit in series with the up circuit and down circuit. The sensor circuit includes a plurality of series connected switches for automatically preventing operation of the lifting device if predetermined conditions are not met. The “up” circuit includes a switch positioned on a stage and connected to the control circuit by a coiled cable. A wand on the switch engages a knob on the side of the car when the car reaches the level of the stage, actuating the switch to stop the car. In the event of a power failure, a battery supplies power for opening a solenoid valve to lower the car. Three control panels are provided, one at each end of the car and one in the middle of the car.

Abstract: An article for securing a load on a pallet includes two reusable straps. A hook is mounted at one end of each strap and is designed to be hooked around the runner of a pallet. The article further includes a quick-release mechanism for connecting the straps to one another. The mechanism comprises a buckle, and a yoke pivotally mounted at one end of the buckle. One of the straps is anchored to the yoke at the end of the strap remote from the respective hook. This strap may be anchored to the yoke permanently or by way of a quick-disconnect device. The buckle and the yoke have a relative position in which the second strap can be threaded into the buckle and then pulled to tighten the straps around a load. Relative pivotal movement of the buckle and the yoke to a second relative position locks the second strap to maintain tension in the straps.