A load-supporting and handling device which comprises a permanent base so constructed as to permit it to be lifted by a fork-lift truck and a separable, disposable load or pallet board adapted to support a load and to be lifted by a fork-lift truck independently of the base.

A demountable structure, for example for forming scaffolding, shelf assemblies or frame assemblies comprises a pair of co-axial spaced connection and support members with a connection element or bracket interposed between the ends of the members. The engaging surfaces of the support members and brackets form frustum cone surfaces and are drawn together and stiffened by a threaded stem passing therethrough.

A sliding door comprising a first door, a second door mounted for sliding movement relative to the first door, and a lock assembly mounted on the second door. The lock assembly comprises a housing having an inner wall and an outer wall and side walls. The housing is mounted on the second door with the one side wall engaging the frame of the second door, the inner wall has an opening therein and a plunger is movable through the opening. The first door has at least one opening therein engageable b...

A knock-down pallet is constructed of a plurality of releasably interlocking aluminum members of one of two types. A unique fastening device is used to achieve, in simple manner without special tools or skill, the interlocking of a plurality of spaced-parallel deck-forming members to two, three or more spaced and parallel stringer members of rectangular cross-section to provide a one-or two-deck two-way or four-way pallet construction. A stop means prevents longitudinal movement of the deck memb...

A snowmobile windshield comprises a moulded sheet of transparent polycarbonate material having a series of mounting tabs spaced along its lower edge. The mounting tabs are of resilient form, being integral with the windshield and generally flat, but having laterally extending parts which can be compressed together to allow the tab to pass into engagement with a narrow mounting slot in the cab of the snowmobile. The windshield can be installed without requiring access to the underside of the snow...

In a shelving system having both vertical and oblique supports for removable shelves, identical shelves are interchangeably usable on either support by reason of the fact that mounting slots on the oblique support are farther apart than the mounting slots on the vertical support. The tabs on the shelves cooperate with these slots in two different ways, depending on the slot spacing, thereby automatically insuring the proper shelf orientation, irrespective of the support.

An adjustable seat having air spring support and providing for pitch compensation and limitation, automatic maintenance of height adjustment, and rapid and economical back inclination adjustment.

A reclining chair has a frame and a seat fixedly and immovably secured to the frame. A back is pivotally mounted to the rear of the frame and extends downwardly beneath the seat. A leg rest is pivotally mounted to the front of the frame and includes an inwardly curved portion at the top thereof which extends beneath the seat. The lower part of the back is connected to the curved portion of the leg rest through a link member such that movement of either the back or the leg rest imparts movement t...

An improved column mounted tool holder for mounting on typical basement or factory support columns of varying sizes. The tool holder includes a pair of complementay structural members that are bolted to each other about a support column to define a work surface on all sides of the column, and each structural member mounts an associated clamp member with a V-shaped clamping surface for adjusting movement to allow the clamping of different size columns. The structural members preferably are of elo...

A collapsible volume frame, when erected, presents in each of two opposite side elevations a side space frame defined by four points which if joined would form a quadrilateral; and presents further space frames in the four other aspects. The side space frames are braced by at least one frame element disposed transversely and articulated to them in a triangulated manner. Releasable means resist collapse of the volume frame. These side and further space frames are foldable so that the volume frame...