Abstract: A sample splitter is formed by a chute that is sloped towards its discharge end and is oscillated back and forth on a horizontal path that is substantially perpendicular to the axial center line of the chute. The chute itself is substantially symmetrical on opposite sides of the axial center line and the walls are sloped upward so that the material forming the sample to be split moves along the chute with a sliding or rolling action back and forth across the axial center line of the chute without significant bouncing of the discrete pieces of the material. An elongated V-shaped plow is positioned at the discharge end of the chute with the apex of the plow forming a substantially straight line that is in axial alignment with the center line of the chute at the mid-point of the oscillation of the chute. The oscillation motion of the chute causes the material of the sample to slide down the chute and to be projected off the discharge end on one side or the other of the apex of the plow.

Abstract: The grain loading apparatus 2 comprises the housing 4 which is attached to the end of the grain discharge chute. The housing 4 includes a shutoff valve 12 located proximately to a material outlet opening 9. The shutoff valve 12 exerts an adjustable closure force on the material flow through the outlet opening 9 to build up a first column of material thereabove. In addition, a grain retarding cone and cylinder 92 is arranged inside the housing 4 above the shutoff valve 12. This grain retarding cone and cylinder 92 decreases the kinetic energy of the material flow and builds up a second column of material thereabove to significantly lessen release of dust into the air upon discharge of the grain strain.

Abstract: A silo system for flowing loose materials, particularly cement with at least two storage silos each with a conical cover raised over their base and on whose lower edge are provided discharge openings connected to a central storage tank, the storage silos being interconnected by a transverse conveying arrangement.

Abstract: A spray gun is provided for hydraulically atomizing and spraying liquids such as paint. The spray gun comprises a body portion having a fluid passageway extending therethrough communicating with a source of pressurized fluid and a spray head portion connected to the body portion. The spray head portion is provided with a spray opening, communicating with the fluid passageway in the body portion, and with a retractable valve stem substantially transverse to and forming a part of the spray opening. A triggering mechanism operates to retract the valve stem to thereby open the spray opening.

Abstract: A salt and/or gravel spreader comprising a mobile container or hopper constructed to have two bottom walls, transverse to the direction of travel, inclined downwards towards an oblong slot at which is mounted a mechanism for the discharge of salt and/or gravel. The lower part of one of the inclined bottom walls has at least one pivotally mounted slat protruding beneath the other inclined bottom wall. Below one or all the pivotal slats is situated a rotatable shaft having a cam for each slat, whereby the slat(s) at the free end through the rotation by the shaft of the cam(s) will swing towards or away from the edge of the other inclined bottom wall. The spreader cannot be blocked by the spreading material and easy adjustment of the dosing can be performed during operation.

Abstract: A sleeve for frictionally coupling a ceramic disk to a cylindrical shaft. The sleeve is constructed of a rigid plastic, preferably ABS with a void content to permit compression when mounting between the shaft and disk. The void content is between 25% and 50%, preferably between 40% and 50%.

Abstract: A valving arrangement for use in the production of an aerated product such as chocolate, in which the product is pressurized with a gas, preferably a soluble gas such as carbon dioxide, wherein the valving arrangement includes a first valve plate (22) having a tapered orifice (22A) therein, a second valve plate (25) which is adjustable relative to the first plate in a plane transverse to the axis of the tapered orifice, and having a corresponding tapered orifice (25A) therein, the axis of which is parallel to the first axis, whereby the flow passage through these orifices can be preadjusted. Means are provided to close off the flow passage through the orifices abruptly without altering the preadjustment of the flow passage. This can be achieved by inserting a rod (16, 30) into the upstream orifice or by moving the valve plate a greater distance than the diameters of the orifices.

Abstract: A high flow rate electromagnetic injector valve with a rapid response time is disclosed for utilization in a single point fuel injection system. Centrally bored end caps are fixed at the front and rear ends of a tubular injector body and a coil wound on a bobbin is disposed inside the body chamber between the end caps. The front end cap receives within its bore a valve assembly including a valve housing and a needle valve with attached armature reciprocally movable against a valve seat to obturate a metering orifice in the valve housing. The valve housing contains fuel inlets for the pressurized entry of fuel into the injector and the needle valve is ported to provide fluid communication to the armature to relieve pressure build-up. The rear end cap mounts within its bore a core member acting as a stator which extends through a central bobbin bore to form a controllable air gap adjacent the armature. The core member further contains internally an adjustment screw and ball member.

Abstract: The invention contemplates improved nozzle structure removably securable to a gas-distributor body for delivering and discharging independent flows of combustible-gas mixture and of powder material to be flame-sprayed by a gas torch to which the nozzle is fitted. The combustible-gas mixture is successively accommodated in annular manifold regions of relatively large sectional area, respectively upstream and downstream from an intermediate annular manifold region of relatively restricted sectional area, for inhibiting flash-back to the gas distributor and for effectively limiting any flash-back effects to the manifold region downstream of the annular restriction.

Abstract: The invention relates to a process and apparatus for the electrostatic spraying of electrically conductive paint. Paint free of electric charge is intermittently fed from a main supply system to a buffer supply vessel, from which the paint is intermittently fed to a spray paint supply vessel which contains electrically charged paint.The paint in the buffer supply vessel is already electrically charged prior to the replenishing of the spray paint supply vessel from the buffer supply vessel.The paint in the buffer supply vessel is intermittently electrically charged and discharged.

Abstract: Torch apparatus for cutting, heating or welding that includes torch head having a torch bore; a torch tip assembly having a tip member that includes a stem portion extending between the head bore with its cutting oxygen passageway opening to the head cutting oxygen passageway and a front member portion joined to the stem portion to extend away from the head, and a barrel retained on the stem portion by a nut in abutting relationship with the front member portion, said barrel having preheat oxygen and fuel gas bores opening into barrel grooves which in cooperation with the stem portion provide passages to mix the preheat oxygen and fuel gas and conduct the mixture to an annular clearance space that in turn opens to the front member mixed gas passageways; a collar on the tip member and a nut threaded on the head to abut against the collar and thereby hold the tip assembly in an assembled relationship to the torch head.

Abstract: The present invention provides a novel apparatus and process for generating a vapor spray from a volatile fluid. In the invention, the volatile fluid is heated to a temperature just below its boiling point prior to being discharged from heat exchanger (18, 46). In one embodiment of the apparatus, heat exchanger (46) contains a diffusion plate (48) to ensure that the volatile fluid is at the selected temperature when discharged from the heat exchanger. In this embodiment, the apparatus further includes a pressure-responsive valve (40) and a bypass line (42) so that a selected pressure is maintained downstream from pump (34).The novel process of the present invention includes the step of heating the volatile fluid within heat exchanger (18, 46) to a selected temperature just below its boiling point prior to discharge from the heat exchanger.

Abstract: A fuel injection nozzle for air-compressing internal combustion engines, especially a throttle-pin nozzle wherein a nozzle needle, urged against a conical valve seat by a compressing spring, is lifted with respect to the compression spring by a feed pressure in the fuel. A device is provided for rotating the nozzle needle about its longitudinal axis. The device for effecting rotation is arranged between the nozzle needle and a spring disk and is fashioned in such a way and controlled by a stroke motion of the nozzle needle in such a manner that the nozzle needle, during each closing stroke, is further rotated stepwise in one direction by a specific peripheral angle.

Abstract: A board support is described that can be mounted to support a board for free multidirectional movement in relation to a woodworking machine or tool such as a saw. The support includes a plurality of spherical rollers cradled by narrow, upright ribs on a base. The base, ribs and portions of the rollers are enclosed within a removable cover. The rollers project through holes in the cover that are positioned so their circular peripheries will not touch the rollers.

Abstract: A slurry recovery sump apparatus is formed from a substantially vertical sidewall and a substantially circular horizontal cross-section and includes a bottom. A support extends diametrically across the sump and above the sump, a material input is mounted between the sidewall and the vertical axis of the sump and is attached to the support, a slurry removal apparatus is mounted to the support between the sidewall and the sump vertical axis on the opposite side from the material input. Apparatus is provided for rotating the sump support around the vertical axis and additional apparatus is provided for moving the sump removal apparatus in a prescribed manner to empty the material being deposited into the sump by the material input.

Abstract: An air atomizing nozzle assembly for spray coating systems such as an electrostatic spray gun is disclosed. The nozzle assembly includes an air cap having a central bore which surrounds a fluid tip nozzle. The bore has a plurality of uniformly dimensioned axially aligned gas flow passages evenly spaced about its circumference and a plurality of radially inwardly extending ribs therebetween. The ribs engage the outside surface of the fluid tip nozzle to positively align its center axis on the axis of the central bore. The air cap and nozzle tip thus cooperate to form a plurality of uniform gas flow passages around the nozzle thereby producing a finely atomized uniform spray pattern of coating material emitted from the fluid tip. In a preferred embodiment of the invention, the gas flow passages and ribs are formed in a metal element inserted in a center bore in the air cap. The metal element is so dimensioned that the ribs make a press fit with the fluid tip to positively align it.

Abstract: A liquid atomizing method and apparatus in which atomization is achieved through acceleration of a primary air flow injected through an upstream throat (58t) into a diverging passage (61) between the upstream throat (58t) and a downstream throat (68) to create shock waves in the air flow which impact a wall surface adjacent and generally opposed to a confined liquid column to create sonic and/or ultrasonic vibrations which are directed into the confined liquid column to cause the column to fracture into tiny droplets of a narrow size range below 50 microns in diameter. One or more auxiliary air flows may be injected through other upstream throats (60t) into the diverging passage (61) in the flow direction of the primary air flow downstream of the first throat to supply energy to the boundary layer and to enhance acceleration of the primary jet through entrainment. The effective cross-sectional flow area of the downstream throat (68) is between 1.25 and 1.

Abstract: A method and apparatus for fluidizing materials wherein a gas such as air is fed into conduits through which the materials to be fluidized flow under pressure, said air being fed into the material conducting conduits at angles in the range of 60.degree. to 120.degree. relative to the direction of material flow, the material conducting conduits being coupled with a third conduit for mixing the fluidized materials. The material conducting conduits are flushed by insertion in a container having means for effecting the flow of a solvent and a gas such as air therethrough.

Abstract: Apparatus for dispensing a mixture of mutually reactive liquids, such as a hardenable plastic foam, comprises a metal housing with a plastic mixing chamber disposed in the housing and having a bore therethrough in which a purging rod reciprocates to clean reactive mixture from the bore. The reactive liquids are separately introduced into the bore through the mixing chamber via valve assemblies whose metal housings extend through the plastic mixing chamber and terminate at the bore. The purging rod retracts rearwardly into a scraper that is immediately behind the inlet openings for the liquids, the scraper being disposed in a recess in the rear of the plastic mixing chamber. The plastic mixing chamber is compressed rearwardly, so that it seals against the valve housings and the scraper. Also, the valve housings have a crush fit with the plastic of the mixing chamber, to augment the seal.

Abstract: Apparatus for dispensing material in metered amounts and without clogging includes a body having a material discharge orifice and a discharge valve seat, a hollow valve spindle engageable with the seat for shutting off the flow of material through the orifice, the spindle being retractable against the force of the return spring for opening the orifice to permit flow of material therethrough. A jet of air is discharged through the hollow valve spindle, when the flow of material through the discharge orifice is shut off for removing any material remaining at the discharge orifice. The spindle may project through the orifice, when the flow of material therethrough is shut off, for removing any residual material from the wall of the discharge orifice.