Abstract: Equipment for exhausting gases from a collecting device including an outer collection duct having longitudinal openings covered by a flexible belt. The collecting device is shifted along said duct while lifting the belt off the collection duct. Located within the outer collection duct is a longitudinally extending arcuate member defining on its side opposite to said belt an inner collection channel for directing exhaust gases out through the collection channel while preventing contact of said exhaust gases with the belt to prevent deterioration thereof.

Abstract: An electrical coil having a bobbin including a central core and a pair of spaced parallel flanges extending from the core with a coil of fine wire wound upon the central core is disclosed herein. One of the flanges has a terminal block which supports connections between the respective ends of the fine wire and terminal leads that extend away from the coil. Each connection consists of a tubular member that has an enlarged head engaging one surface of the terminal block with the terminal block having an enlarged opening surrounding the tubular member and the free end of the fine wire is connected to the enlarged head. The terminal lead wire can be connected directly into the tubular member or be connected through a sleeve that can be telescoped over the tubular member. The tubular member may also be used as a plug-in arrangement.

Abstract: A mounting arrangement for mounting a dozer blade on a vehicle so that it is capable of being tilted, angled, and raised and lowered is disclosed herein. The mounting structure includes a member that is adapted to be attached to the vehicle and defines a vertical pivot axis which supports a bracket that is pivoted through a fluid ram attached to the bracket and the vehicle. The bracket supports a pair of arms that are connected thereto through universal connections which are located on a common horizontal axis and the blade is attached to the opposite ends of the arms through further universal connections so that the blade can be raised and lowered by a lift fluid ram interposed between the bracket and the blade. A rigid link is connected to one of the arms and to the blade above the connection for the arm while the second arm has a single tilt fluid ram connected thereto and to the blade so that extension and retraction of the tilt fluid ram will tilt the lower edge of the blade.

Abstract: A glandless permanent magnetic centrifugal pump designed for a power input of about 10kW or more and a delivery head of between 2 and 10 bars having a pump casing containing an impeller assembly connected to an inner rotor journalled in the pump casing and carrying permanent bar magnets disposed parallel to the rotor axis via which it is driven magnetically by an outer motor-driven rotor generating a rotating magnetic field passing through an air gap which circumferentially surrounds the inner rotor and in which a gap tube extends around the inner rotor and is fixed to the pump housing to glandlessly close the interior thereof in a fluid-tight manner.

Abstract: A straddle carrier having a generally U-shaped frame with a spreader supported in the opening of the U-shaped frame is disclosed herein. The spreader is raised and lowered by two fluid rams which respectively cooperate with opposite ends thereof and hydraulic fluid is supplied to the fluid rams by a hydraulic circuit that includes an electrical circuit which automatically prevents the spreader from tilting beyond a maximum angular attitude with respect to a horizontal reference plane.

Abstract: A straddle carrier including a spreader in a bay that is raised and lowered by two fluid rams cooperating with opposite ends of the spreader is disclosed herein. The hydraulic circuit supplying fluid to the fluid rams includes a valve that prevents flow of hydralic fluid from the rams when the conduits leading to the rams are not pressurized but also includes an electrically actuated valve that allows the spreader to be lowered without hydraulic power.

Abstract: An article detection system utilizing optical transducers in a transducer housing designed to minimize detection errors and including additional circuitry for minimizing errors in the processing of the signal. The system produces an output for each article detected which is utilized in control circuitry for controlling external machine operations in response to various detected conditions.

Abstract: A joint having improved snag resistance and peel strength is formed between overlapping end portions of a thermoplastic strap by the method and apparatus of the present invention. The thermoplastic strap is formed into a loop having overlapping inner and outer end portions which are joined to one another by a resolidified thin layer of formerly melted material from each of the overlapping strap end portions. Resolidified material extends completely to an inwardly tapered end of the outer strap end portion to provide the improved joint. A resolidified mass of formerly molten material also is present in front of the tapered end to further protect it against snagging.

Abstract: A straddle carrier consisting of an inverted U-shaped frame, having a pair of vertically extending legs that define an elongated container carrying bay with each leg supported by a plurality of wheels is disclosed herein. First and second engines are respectively supported on the legs and each engine drives a plurality of pumps which supply pressurized fluid for driving and steering the vehicle, as well as pumps for supplying fluid to a plurality of other functions. The hydraulic circuit for performing the plurality of other functions as well as the steering function is designed so that all of the functions may be operated from the pumps driven by one of the engines in case of power failure in the other engine.

Abstract: Ethylene and vinyl acetate are copolymerized in aqueous emulsion using redox catalysts by copolymerizing vinyl acetate and ethylene monomers in an emulsion containing at least 10% by weight of emulsified particles of a copolymer of ethylene and vinyl acetate, with the unreacted vinyl acetate and ethylene providing a concentration of at least 10% by weight of unreacted monomers in the emulsion together with redox catalysts to cause a vigorous exothermic reaction. The copolymer exhibits substantially increased insolubility in organic solvents and aqueous caustic.

Abstract: A shopping cart having a novel locking arrangement for the gate of the upper basket and featuring a baby basket that seats a child below the level of the upper basket for enhanced stability of the cart and economy of storage in the upper basket, as well as to position and face the child towards the mother who is pushing the cart so that the child cannot reach or kick the gate or the groceries in the upper basket. The novel locking arrangement for the gate includes a latch plate having an end restraining shield that provides an abutment stop for limiting the forward movement of the gate unless the gate is manually lifted and opened. The gate has ears which prevent the gate from falling into the interior of the basket, and has at least one pin that engages the end restraining shield.

Abstract: Aqueous emulsion coating compositions which can be cured with ultraviolet light or by addition polymerization are formed by emulsifying viscous droplets containing ethylenically unsaturated tertiary amine into water with the aid of a solubilizing acid.

Abstract: Low temperature curing aqueous coatings are provided in which the resin solids are constituted by an epoxy ester of a resinous polyepoxide with at least about 0.2 mole of monocarboxylic acid containing conjugated unsaturation per epoxy equivalent in the polyepoxide and at least about 0.5 mole of monocarboxylic acid containing nonterminal nonconjugated unsaturation per epoxy equivalent in the polyepoxide. This epoxy ester is substantially free of epoxy groups and is copolymerized in solvent solution with monoethylenic monomers containing terminal unsaturation, including carboxyl-functional monomers and preferably also monomer providing a primary hydroxy group, and then precondensed with a phenolic resin to provide a non-gelled, solvent-soluble copolymer-phenolic condensate having carboxyl-functionality and residual ethylenic unsaturation.

Abstract: Aqueous adhesive emulsions based on aqueous emulsion copolymers of vinyl esters such as vinyl acetate, especially with ethylene, are provided with improved solvent insolubility and adhesion characteristics in the presence of hydroxy functional protective colloid which is present during the copolymerization, by the inclusion in the copolymer of a monoethylenic carbamate, especially allyl carbamate.

Abstract: A tennis racket assembly comprising a long structural member, a short structural member and two yoke pieces at the junction of said members. The long member extends from the grip end of the handle, up one side the handle, around the major portion of the ellipsoid head and down the other side of the handle to the grip end. The short member extends across the throat of the racket and completes the ellipsoid shape of the head, joining the long member at two junctions.Each yoke piece has the external shape of the letter "Y" and has at least two branch portions and a trunk portion. The trunk portion of each yoke piece is wrapped around a portion of the long member between the junction and the head of the racket, one branch portion of each yoke piece overlies a surface at one end of the short member, and the other end of each yoke piece overlies an opposite surface at said end of said short member.

Abstract: A high solids rapid-curing thermosetting solution coating composition containing less than about 30% of volatile organic solvent is provided by a mixture of: (1) an hydroxy functional polyester resin of: (A) 2,2-dimethyl-3-hydroxypropyl-2,2-dimethyl-3-hydroxypropionate; (B) isophthalic acid; and (C) a polyhydric alcohol containing at least three hydroxy groups per molecule and providing from 5 to 25% of the total hydroxy functionality in the polyester; said polyester having an equivalent ratio of hydroxyl to carboxyl functionalities of from 1.35:1 to 2.0:1; (2) liquid low volatile polyhydric alcohol containing from 2-4 hydroxy groups, and (3) liquid hexafunctional melamine resin. In this mixture, the polyester constitutes from about 30 to 70%, the liquid polyhydric alcohol constitutes from 10 to 50%, and the liquid melamine resin constitutes from 15 to 50%.

Abstract: A simplified method for the cathodic electrodeposition of polyamine resin from a dispersion thereof in an aqueous electrocoating bath is provided in which the polyamine is selected to be stably dispersible in water in the form of a salt with a solubilizing acid at a pH of from 6.0-7.5, and this polyamine resin is substantially completely neutralized with carbonic acid and dispersed in water in the form of an amine carbonate or bicarbonate. A unidirectional electrical current is passed through an aqueous electrocoating bath containing the amine carbonate or bicarbonate to deposit the polyamine resin at the cathode and cause the release of carbon dioxide. In preferred practice, a proportion of the amine groups in the polyamine resin within the bath, low enough to maintain the pH of the bath at a pH of about 6.

Abstract: A sealing system for roadway expansion joint gaps and the like. A continuous seal is provided comprising an elongated central arched segment, a pair of longitudinally extending legs, and a protrusion extending upwardly from each of the legs. The seal embeds at least one fabric reinforcement layer to stiffen, rigidify and strengthen the seal means and the protrusions. The seal is secured to each roadway slab between a horizontal surface and a retainer which defines an elongated recess for sealingly receiving, engaging and compressing a protrusion. A limiter is provided for limiting the compression of the protrusions, and a retainer lip is provided for visually indicating that sealing of a protrusion has been effected.

Abstract: A storage file and retrieval system for readily locating and retrieving file folders and the like. The storage file and retrieval system includes a cabinet with one or more slidable drawers into which a plurality of index folder assemblies are stored. Each index folder assembly includes a file folder with an upwardly extending tab having a striker face. The striker faces of the various index folder assemblies are sequentially spaced from each other so as to be located in different striking positions. A reset bar is mounted to the interior of the cabinet to tilt the index folder assemblies forwardly toward the front wall of the drawer when the drawer is closed.

Abstract: The packing of the present invention is a continuous coil which has at least three turns, and preferably about six turns. Each turn has at least three sides which preferably are generally curved and has a generally rounded vertex between each pair of adjacent sides. Each turn of the packing is rotatably offset at least about 15.degree., and preferably between about 15.degree. and 20.degree., relative to each adjacent turn of the packing. The coil packing preferably is generally cylindrical in cross-section, and defines a generally cylindrical passage which extends axially through the coil packing. The coil packing is suitable for use in columns or towers for absorption, adsorption or rectification.