This invention relates generally to cardboard structures, and particularly those for use in industrial pallets. The cardboard structure comprises layers of corrugated cardboard with corrugations running in different directions. This allows the resultant structure to take significant amount of stress in different directions. A pallet structure utilizing this cardboard also has feet formed from a single sheet of thin plastic material. It is free from sharp corners and stress risers and has ribs an...

A structure comprises uprights and connecting beams as well as wall panels and vertically spaced apart horizontal partitions inserted between said uprights and beams. To permit the structure to be assembled and disassembled without a need for tools, the wall panels are provided with vertical edge flanges, which extend into grooves formed in the uprights, the uprights are interlocked with the connecting beams, and the wall panels and horizontal partitions are held between upper and lower connecti...

A method for fabricating a space frame structure, such as a dome, for covering an open space, with the space frame structure being assembled from beam members, which intersect at rigid mode joints. The beam members and other structural components used in the skeleton of the space frame are made from pre-cast concrete, which has not been subjected to pre-tensioning and the rigid node joints are formed in situ, for example, by casting concrete joints incorporating the ends of the beam members. The...

A supporting structure comprises a shell and a plurality of support members which are independent of each other, inserted in the shell and arranged so that the flexural rigidity is smaller in the water flow than in a perpendecular to the water flow. The supporting structure supports one place of an axial-flow bulb turbine which is to be supported at two places spaced in the water flow direction from each other. The support structure is more flexible in the water flow direction than in the perpen...

A structure comprising silicon-containing ceramic body and an active metal-containing metal layer as a brazing layer or a metallization layer bonded to and disposed on the surface of the ceramic body. A reaction layer of a compound containing constituent elements of the ceramic body and the active metal is formed in the interface between the ceramic body and the metal layer. The reaction layer is present ahead the outer circular edge of the metal layer. In particular, when the ceramic body is si...

A mattress structure wherein a frame includes an activatable air blower which is to be used to inflate a mattress which is to be stored in a collapsed position within a storage compartment of the frame. Upon activation of the blower, the mattress is to automatically extend from the frame and will normally be located upon a floor forward of the frame in an inflated condition. During extension of the mattress, the mattress storage compartment is automatically closed.

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 mem...

A magnetic structure for the propagation of magnetic bubbles at elevated velocity. A magnetic bubble layer is grown on a [110] face of a substrate, the lattice misfit being between -6.times.10.sup.-3 and -2.times.10.sup.-3, and the magnetic layer having a composition on the basis of europium-iron garnet and a damping parameter .ltoreq.3.times.10.sup.-7 Oe.sup.2 sec/rad.

A security panel arrangement for use with an intrusion alarm system designed to monitor the continuity of a normally continuous signal conductive path and to produce a warning signal when the signal conductive path is broken, which arrangement includes a cellular panel forming a series of parallel elongated passages through which extends at least one means for conducting a signal. The cellular panel is attached to a surface portion of a structure to be secured, and the means for conducting a sig...

In a case structure comprising a base member and a detachable cover having a pair of side walls adapted to be hingedly and interlockingly connected to the base member, the provision of a combined hinge and locking device comprising an elongated connecting member including an inwardly extending hook-shaped projection and an elongated, flexible and bendable, lengthwise extending hinge member intermediate the side walls and the connecting member. The base member includes a pair of lengthwise extend...