Abstract: A storage rack comprising a series of columns for supporting shelves with each column having slots at vertically spaced intervals corresponding to locations for supporting shelves, the slots on one column being horizontally aligned with the slots on the column adjacent thereto, shelf supports each supported by at least the slots on the associated column with each of the supports extending horizontally across the columns both forwardly and rearwardly of the columns thereby supporting shelves on opposite sides of the columns, fastener means fixedly locking the shelf supports in a fixed position relative to the columns, shelves mounted at opposite ends of the shelf supports on opposite sides of the columns with the columns being positioned centrally of the shelves as opposed to an outside location insuring maximum available shelf space with unimpaired access to the shelves, and shelf fastener means securing the shelves in fixed unitary assembly relative to the shelf supports.

Abstract: A portable cart mounted on wheels and having a frame with spaced upright walls mounted thereon. Portable trays are mounted between the spaced upright walls. Means secures the trays in detachable assembly with the spaced upright walls. An improved series of toolholders is mounted in assembly on the portable trays. Each of the toolholders has a central tubular section for receiving an elongated tool in supported assembly therewith. The toolholder has one of its sides provided with a recessed area. A clamp block is mounted in the recessed area between the toolholder and the tray. The clamp block and the recessed area have upright matching engaged surfaces slidable relative to one another. A thumb screw is mounted on the toolholder and extended through and engaged in threaded assembly with the wedge block.

Abstract: A crossover or bridge for shipment as a compact unit for assembly at an installation site comprising a bridge section and a pair of stairways for connection with opposite ends of the bridge section. The bridge section is disposed in an elevated position relative to bottom ends of the stairways when assembled therewith for spanning an object. The bridge section comprises a pair of transversely spaced crossover panels with a grating or decking carried thereon. Readily assembled joint means are provided between the stairways and the bridge section at its opposite ends.

Abstract: A storage rack is provided with posts and shelving for supporting goods. The posts are of the type having keyhole slots. Several types of post protectors are disclosed. Both of the post protectors have fasteners engageable with the keyhole slots to provide means to secure them to a storage rack to minimize damage to the storage rack posts in the event that the posts are accidentally struck by various types of vehicles such as fork lift trucks and the like. The one post protector is provided for mounting on the front face of the post and extends vertically a number of feet to protect the storage rack post from ground level upwards to a desired point. A second corner post protector is provided for mounting at right angles to the other first described post protector and provides means to shield the post from blows which might be directed or received at generally right angles to those receivable against the other first described post protector.

Abstract: The present invention is concerned with a new type of pallet rack having decking panel retainers for positively securing the pallet rack structure to the pallet rack in unitary assembly so that the pallet rack structure cannot become accidentally disengaged from the supporting beams.

Abstract: A rotatable gate floor entrance has one or two gates which are pivotably attached at a lower corner to a post structure connected to a floor. The gate or gates rotate in a vertical plane from an open to a closed position. When a single gate is used, a gate lock connects the gate to a second vertical post. When two gates are used, the first gate is rotatably connected at a lower corner to a first post support and the second gate is attached in similar fashion to a second vertical post. Both the first and second gates rotate in a vertical plane and, when placed in a closed position, have side edges which abut one another. The two gates are locked in this position by upper and lower channel members mounted to the gates.