Abstract: Apparatus for developing and handling an abrasive-laden gas stream for abrasive jet machining, employing equipment for storage, feeding, and control of abrasive powder in a carrier jet delivered through an upright feed tube at relatively high pressure and velocity.

Abstract: A vehicle truck embodying articulated subtrucks or steering arms having a plurality of wheelsets, with steering arm interconnections establishing coordinated steering motions of the wheelsets, the truck also having elastic restraining devices for stabilizing steering and other motions of the wheelsets and still further having linkage interrelating relative lateral motions of the truck and body of the vehicle. A method and structure is provided for adapting or "retrofitting" existing truck structures in a manner to embody the steering and stabilizing characteristics.

Abstract: Reed valve mechanism for use in the fuel/air supply system of an internal combustion engine, the mechanism including passages, ports and reed valves, all of which are arranged to minimize unnecessary fluctuations of the flow velocity of the fuel/air being delivered to and into the cylinder of an engine and also minimize localized turbulence in the flow path and thereby increase the power output of the engine.

Abstract: A chair, particularly adapted for use by infants, is disclosed, including a chair body having a generally upright part with a forwardly inclined supporting surface and an interconnected rearwardly extending lower part adapted to form a seat for the infant when the infant is positioned on the chair with the front of the torso presented toward the upright end forwardly inclined chair body, the chair further including adjustable infant supporting means mounted on the chair body and having upper and lower portions presented at an upwardly and rearwardly inclined angle, thereby providing for gravitational support of upper and lower portions of an infant occupant in a forwardly inclined position.

Abstract: A casket having a shell formed of sheet material and having a frame surrounding a lower portion of the shell, the frame having casket-handling components and being separably interconnected with the shell.

Abstract: The process according to the invention consists of superposing a plurality of panels of compressible materials (1), of providing the pile thus produced with at least one enclosure (2) of shrinkable plastic material, of subjecting the pile to a first compression normally on its wide surface, of causing the shrinking of the enclosure (2) on the compressed pile to provide a package, of superposing in order of thickness a plurality of identical packages of compressed panels, of applying a flat rigid element (12) against each of the terminal surfaces of the pile of packages thus produced, of subjecting the said pile to a second compression, perpendicular to the flat elements (12) and of joining the pile of packages (5) thus compressed with the aid of assembly means.

Abstract: The process according to the invention consists of superposing a plurality of panels (1), of providing the pile thus produced with at least one enclosure (2) of shrinkable plastic material, of subjecting the pile to a first compression in a direction normal to its wide surface, of causing the shrinking of the enclosure (2) on the compressed pile to provide a package, of superposing in order of thickness a plurality of identical packages of compressed panels, of applying a flat rigid element (12) against each of the terminal surfaces of the pile of packages thus produced, of subjecting the said pile to a second compression, perpendicular to the flat elements (12) and of joining the pile of packages (5) thus compressed with the aid of assembly means.The invention is applied to the packaging of panels of compressible materials.

Abstract: Modular system for making containers, including reuseable panels for the side walls of the containers, the side wall panels having fastening devices adjacent the upright corners of the containers, with the end portions of the panels overlapping each other in a series in one direction around the perimeter of the containers, and with fastening devices including fastening plates in a series overlapping each other in the opposite direction around the perimeter of the containers.

Abstract: Spindle jig mechanism for use in drilling spindle apertures in stair rails, the mechanism including a mounting block adapted to extend along the underside of a stair rail and having a transversely extending cylindrical cavity for receiving a cylindrical support for a tubular guide for a drill to be employed with the jig mechanism. Provision is made for multiple jig mechanisms having a plurality of mounting blocks, each adapted to position different tubular drill guides adapted to cooperate with drills of different sizes.

Abstract: A vehicle truck embodying articulated subtrucks or steering arms having a plurality of wheelsets, with steering arm interconnections establishing coordinated steering motions of the wheelsets, the truck also having elastic restraining devices for stabilizing steering and other motions of the wheelsets and still further having linkage interrelating relative lateral motions of the truck and body of the vehicle. A method and structure is provided for adapting or "retrofitting" existing truck structures in a manner to embody the steering and stabilizing characteristics.

Abstract: A casket lid and method of manufacture is disclosed. The lid is formed by cutting corrugated fiberboard to form a blank having a central section and end sections, the central section being scored on parallel lines extended longitudinally of the lid, and the central section is flexed on the score lines to provide a domed configuration.

Abstract: A fire door comprising a core and edge banding, the principal ingredients of the core being expanded perlite, gypsum and cement, the edge banding comprising a strip of natural wood, a strip of a cast mixture of which the principal ingredient is gypsum and an intervening strip of plastic laminate.

Abstract: Fiber mats formed by attenuating molten streams of attenuable mineral material by subjecting the streams to the action of a hot attenuating gas blast. The gas blast induces gas from the surrounding atmosphere, and the combined blast and induced gas forming a fiber-carrying current. The current is directed toward a preforated fiber-collecting conveyor on which the fibers are deposited in the form of a mat and the gas of the current passes through the conveyor. Provision is made for withdrawing a peripheral portion of the fiber-carrying current at a point intermediate the zone of attenuation and the perforated fiber-collecting conveyor.

Abstract: Apparatus for abrasive jet machining, including equipment for storage, feeding, and control of abrasive powder in a carrier jet delivered through an upright feed tube at relatively high pressure and relatively high velocity.

Abstract: A casket and method for manufacture are disclosed according to which a shell or base, having outwardly flared walls, is constructed of corrugated fiberboard by a technique in which a planar sheet of corrugated fiberboard is cut to form a blank having interconnected portions corresponding to the areas of the flared side and end walls. A domed lid is also provided, being formed of corrugated fiberboard with a reinforcing marginal frame, provision being made for utilization of the lid either as a single unitary piece or as a split lid having two halves.

Abstract: A powered locomotive truck is disclosed, the truck having two wheelsets, each with an axle having a driving motor mounted thereon, the wheelsets being mounted in a rigid main truck frame, with freedom for relative yaw motion of the wheelsets, and each wheelset further having a steering arm or yoke movable with its wheelset during relative yaw motion of the wheelsets with respect to each other, the steering arms having an interconnection in a region between the wheelsets providing for interchange of yawing steering forces between the wheelsets.

Abstract: Method and equipment are disclosed for production of nitrogen and carbon dioxide by a dual phase combustion of a hydrocarbon fuel and air, the exhaust products of the second phase of combustion being treated in a monoethanolamine absorber by which the carbon monoxide is absorbed and the nitrogen and carbon dioxide separated. The first stage of the dual phase combustion is effected in one or more combustion prime movers or engines and the second phase of combustion is effected by the addition of fuel to the exhaust products of the engine or engines; and a compressor is driven by each engine and the separated gases are separately passed through engine-driven compressors.

Abstract: Apparatus for feeding powder particles into a pressurized gaseous stream comprising a feed chamber having a helical particle feed channel, a reserve powder supply chamber above the feed chamber and a feed tube extended from the reserve powder supply chamber and arranged to deliver powder from the reserve supply to the bottom of the feed chamber and form a powder deposit in the central region of the bottom wall and lying within the angle of repose of the powder, a delivery duct communicating with the helical particle feed channel, and means for controlling the feed rate comprising means for controlling the vibration of the feed chamber.

Abstract: A self-steering railway truck having interconnected steering arms associated with the axled wheelsets and having mechanism for yieldingly resisting yawing motion of the wheelsets including at least two devices, at least one of which provides a relatively high rate of increase of resistance per unit of deflection in the initial portion of the yaw motion and at least another of which provides a relatively low rate of increase of resistance per unit of deflection in a portion of the motion beyond the initial portion.

Abstract: Reed valves for internal combustion engines are disclosed, the reed valves having protective coating of synthetic rubber.