Abstract: Described is a method for manufacturing a coal tar enamel-coated steel pipe, in which a primer coat of epoxy resin is applied to a preheated steel pipe, and coal tar enamel is applied to the primer coat prior to full curing of the latter. The resulting coated steel pipes, which also are described, exhibit excellent resistance to cathodic disbondment, heat and water. In some embodiments the primer includes a silane coupling agent.

Abstract: A flexible decorative sheet for use in surfacing an automobile body panel includes a first polyester carrier sheet having a high gloss surface, a clear coat of a weatherable optically-clear polymer containing fluorocarbon resin and an acrylic resin coated on the surface of the first carrier sheet, a tie coat on the clear coat, and a color coat containing a chlorinated polymer with dispersed pigments cast on the tie coat and dried. A pressure-sensitive adhesive layer is formed on a second polyester carrier sheet and then laminated to the exposed face of the color coat to form a pressure-sensitive, adhesive-backed composite paint coat between the outer carrier sheets which form protective removable backing sheets for the resulting laminate. The decorative sheet is applied to a substrate panel by pressure-sensitive adhesive bonding techniques, with the clear coat serving as a glossy, weatherable protective outer layer for the underlying color coat.

Abstract: Described are novel triethylenediamine adducts of certain 4-hydroxy-substituted, 3,5-hydroxy-substituted and 2,3,4-hydroxy-substituted benzoic acid derivatives, and novel boron trifluoride complexes with cyclic amidines, which are useful for the conversion of thermosettable compositions. Also described are novel thermosettable compositions incorporating the adducts and complexes.

Abstract: The spinal rod system and perpendicular rod connector of the invention provides for a first rod to be connected by two pedicle screws transverse to the spine across a vertebra. The perpendicular connector is then connected to the first rod anywhere along the rod. The longitudinal spinal rod is then connected to the perpendicular rod connector using common connectors. The perpendicular connector is slidable along the first rod. By using the perpendicular rod connector, the amount of bending and the tolerances required is reduced as the connector may be slid along the transverse rod to accommodate the longitudinal rod. Known pedicle screws may be used with a slight bend placed in the transverse rod to accommodate the spinal column. Alternatively, the pedicle screws may be bent slightly such that a straight transverse rod may be used.

Abstract: Described are several preferred acid salts and complexes of N,N-dimethylpyridine (DMAP) and 4-(4-methyl-1-piperidinyl)pyridine (MPP) which are useful as curing agents or as accelerators in preferred epoxy resin curing processes. Also described are particularly preferred processes for forming cured epoxy resin materials which are advantageously employed in large production line scale operations, and curable coating compositions.

Abstract: A device and method for protecting D.C. powered electronic equipment to be isolated from a D.C. marine power source for minimizing the interference of extraneous signals on the power signals along with a back-up D.C. power source for powering the electronic equipment in the event of the loss of operative power signals from the D.C. source. The device may include a remote indicator for signalling the marine vessel operator that the electronic equipment is being powered from the back-up power source and not the main power source.

Abstract: It has now been found that a mixture of methyl acetate, methyl ethyl ketone nd mineral spirits along with a surfactant effectively dissolves fats and greases, and is especially useful for unclogging sewer lines.

Abstract: A cascadable seventeen-bit self-testing comparator (20) is produced on a twenty-four pin GAL.RTM. 39V18 generic array logic chip by so interconnecting the data pins (1-17) with the logic macro cells (24a-h, 26a-i), and configuring the macro cells, that any data applied to the pins is registered in the macro cells (24a-h, 26a-i) upon pulsing the clock (35), and any exact coincidence of subsequent data with the registered data causes one of the macro cells (26j) to generate a match-indicating output (61).

Abstract: A prefabricated modular unit construction bridging system in which all components are identical and interchangeable to meet any variation of span, width of roadway, number of lanes of traffic, and live load specification for any temporary, semi-permanent, or permanent bridge. The bridge is capable of being dismantled and the individual modular components used elsewhere to form a new bridge. The panels, when connected end-to-end to form the main load-bearing trusses of the bridge side girders, are of such a shape that they can be pinned together at their bottom chord level to support the standard cross-beams and modular deck units/bracing throughout the bridge and provide gaps between adjacent panels at their top chord level into which can be pinned other standard chord units of such a length calculated to eliminate entirely both the natural pin-hole deflection inherent in 2-pinned modular truss structures and the elastic deflection under dead load.

Abstract: The reversible reaction M+x/2 H.sub.2 .rarw..fwdarw.MH.sub.x, wherein M is a reversible metal hydride former that forms a hydride MH.sub.x in the presence of H.sub.2, generally used to store and recall H.sub.2, is found to proceed under an inert liquid, thereby reducing contamination, providing better temperature control, providing in situ mobility of the reactants, and increasing flexibility in process design. Thus, a slurry of particles of a metal hydride former with an inert solvent is subjected to a temperature and pressure controlled atmosphere containing H.sub.2, to store hydrogen and to release previously stored hydrogen. The direction of the flow of the H.sub.2 through the liquid is dependent upon the H.sub.2 pressure in the gas phase at a given temperature. When the actual H.sub.2 pressure is above the equilibrium absorption pressure of the respective hydride the reaction proceeds to the right, i.e., the metal hydride is formed and hydrogen is stored in the solid particles.

Abstract: A blade for a cutting tool is provided having plane parallel faces with V-shaped upper and lower jaws, the jaws being separated at one plane parallel face by a web, the upper and lower jaws being shaped to receive and prevent lateral movement of an insert when retained by the jaws. The insert is shaped to cooperate with the blade. The insert has a cutting edge mounted on a cutting portion separated from the seat portion by a rebate.

Abstract: A drawer handle can be removably mounted over a drawer front without fasteners or the like. The drawer front has a recessed region to facilitate opening the drawer, and the drawer handle can be snap-locked onto the drawer front to cover the recess and provide an optional means of opening the drawer. The drawer handle is of inverted U-shaped channel configuration including elongated front and rear flanges extending along a narrow base of the channel. The front and rear flanges can be spread apart to facilitate slipping the channel over the drawer front so the base of the channel rests on the upper edges of the drawer front, and the front and rear flanges overlie front and rear faces of the drawer front. The rear flange covers the recess in the drawer front, while the front flange is foreshortened relative to the rear flange and extends across the mid-point of the recess to provide a means for opening the drawer.

Abstract: A pre-fabricated bridge panel having a projecting "male eye" member in the form of an elongate block for connection to an adjacent panel. The upper surface of the inner end portion of the member slopes downwardly towards the inner end, this end portion being welded to a chord of the panel. The projecting end of the member has a hole formed therethrough transverse to the length of the block.

Abstract: A mobile pump for pumping moist compressible materials such as plaster, concrete, mortar and the like constructed integrally with a motor vehicle to be powered and transported thereby. The pump is provided with integral conveying apparatus redefining the material loading positions to lower elevations than possible with present day mobile pumps without modifying the conventional frame work or vehicle beds. The conveying apparatus may be a power driven auger rotatably secured to the pump proper for defining convenient loading positions for present day concrete trucks or the like.

Abstract: A pot for plants primarily used for a hanging pot including at least two interlocking, stacked sections, the lower of which has a plurality of spaced, upwardly open, downwardly extending slots or notches defined in its upper edge of size so that plant stems and branches in the lower section can be laid through the openings with the upper section of the pot removed. Then the upper section can be placed on the lower section to hold the stems in position extending through the slots in the side wall of the finished pot.

Abstract: The system described herein constitutes an apparatus and method for internally treating glass containers as they are moving from the forming machine on the single-line conveyor to the entrance to the annealing lehr. A preferably refrigerated enclosure or housing positioned beside the path of travel of the containers is provided with a supply of sulfur pellets, with the pellets being delivered to a gating device, which also constitutes a propulsion device, for feeding or ejecting a pair of pellets from the gating device through an elongated tube whose outlet is positioned above and in alignment with the line of movement of the necks of the containers to be treated. The gating device is activated or triggered by a sensing device mounted to the conveyor in position to view the containers as they are moved by the conveyor.

Abstract: A safety helmet for vehicular use constructed of two superimposed shells to take advantage of the physical properties of each of the materials for the shells and cancel out any disadvantages. The shells preferably are constructed of different plastic materials such as a fiberglass reinforced plastic and a tough plastic such as a polycarbonate.