Abstract: A hopper which contains loose material, and a door and frame assembly for attachment to the bottom of the hopper, for controlling the flow of the loose material therefrom. The assembly includes a door frame formed of spaced side and end walls, and a cross-piece which, with the side walls and one of the end walls, defines a hopper outlet opening. A door is slidably mounted to the frame so as to be across the outlet opening when in a closed position and to be clear of the opening when in an open position. A door moving device is provided for sliding the door, with respect to the opening, between the closed position and the open position. The frame particularly includes structure for attaching a plurality of different types of door moving devices, including air or hydraulic cylinder arrangements, or rack-and-pinion arrangements operated by an electric motor, or by hand or by means of a chain or cable.

Abstract: A lid which is provided with a variable-flow pouring spout and with an improved vent device, particularly for cans of base color for automobile coachwork. The lid includes a vent opening which is provided on an inner face thereof with a channel which leads out at a point close to the edge of the lid, substantially diametrically opposite the pouring spout.

Abstract: The discharge rate of a solid particulate material from a storage hopper is increased beyond the rate attainable by gravity flow along through the introduction of a pressurized gas into a plenum that lies over the discharge hopper. In one embodiment, a first pipe extends vertically downward from a storage hopper, and a second pipe of larger diameter is fitted over the lower end of the first pipe so that an annular plenum is formed between the pipes. A pressurized gas is injected into this plenum and results in an increase in the discharge rate. The discharge rate can be controlled by altering the pressure of the injected gas, and the flow can be rendered intermittent by opening and closing a gate valve at the outlet of the discharge hopper.

Abstract: A dispenser closure for a container includes a body having a generally planar top portion and a peripheral skirt portion depending therefrom to form a cap-like formation, and the top portion is provided with at least one sifter opening, a larger opening for spooning or pouring and a pair of vertically projecting slide guides located thereon in diametrically opposed relation to each other. A substantially planar solid slide plate is also provided and is adapted to slidingly engage the slide guides and to selectively expose either the sifter opening, the larger opening or to cover both the shifter and larger openings.

Abstract: A dispenser for granulated materials and powdered materials is disclosed having a hopper contained within a base mounting which dispenses material to a receiving cup. A manually operated sliding plate valve starts and stops the flow of material into the cup. Overflow is prevented by maintaining the receiving cup within close proximity to the mounting via runners extending from the top of the cup. Both the cup runners and sliding plate are slidably held adjacent the mounting via interior and exterior channels attached thereto.

Abstract: To provide flow of grain controlled in amount and direction, an end gate for a truck comprises an end gate body adapted to be fastened to the end panel of a truck having three vertically slidable door panels in it and a single lever operated drive plate. Each of the door panels includes a separate latch by which it is connected to the drive plate. The door panels are mounted in parallel track members with cut-away portions and a member extending upwardly from the bottom edge of the door panel when the door panel is in its uppermost position to hold the lower portion of the door panels. The latches include hinges movable from a location over an L-shaped flange on the longitudinally extending drive plate and away from said longitudinally extending plate and the latch cam may be moved to engage the hinge and press it against said longitudinally extending plate for connecting said drive means to said door panel.

Abstract: A sluice type apparatus for discharging batches of material from a pressurized enclosure has a container with an upper inlet and a lower outlet each closable by a slide gate. Preferably, each slide gate has two slide gate members driven by respective piston cylinder devices so that one gate is closed while the other gate is open and vice versa. At least the slide gate members for opening and closing the inlet are withdrawn from their inlet closing position into a respective outwardly closed or sealed chamber for making it easier to keep the container pressurized. The seals between the chamber entrance slots and the respective slide gate member are not required to be precision seals because any material that may pass into these outwardly closed or sealed chambers is easily removed again.

Abstract: A bag-like container which comprises first and second flexible wall members. Edge portions of the flexible wall members are attached together, and a spout having an annular body and an outstanding annular flange at an end of the body is attached to one of the wall members. Slots in the annular body parallel to the annular flange and spaced therefrom support a slideably mounted closure plate member. A tongue is mounted on the closure plate member. The tongue moves in openings in opposed sides of the spout body between a closed position in which the tongue closes the spout body and an open position.

Abstract: A lid with an adjustable "quillotine" type pouring arrangement, adapted to be mounted, in particular, on the primary color or paint containers for car bodywork and employed in paint stirring machines. The lid includes at least one component for fixing the lid on a color container; a pouring spout on the lid with an opening portion of this pouring spout being substantially planar; an operating lever which has a lower end pivotably hinged to an upper wall of the lid, and which lever is movable between a resting position and a depressed working position; and a sliding element which is also substantially planar and which is slidable in surface contact with the planar pouring spout opening portion so as to sealingly close the latter.

Abstract: A slide gate assembly for closure of a discharge opening in a container for bulk material which includes a continuous flexible seal residing in an inverted U-shaped chamber around the perimeter of the discharge opening. This flexible seal has a generally rectangular cross-section with a protruding lip or flap extending inward and downward from the lower inside corner of the seal cross-section. In addition, the seal has compressible ribs in the bottom side for engagement with the upper side of the slide gate. The seal lip or flap provides a squeegee action on the upper side of the slide gate during insertion and removal of the slide gate which insures that the upper surface of the slide gate outside of the seal lip is free of material so that a positive seal between the discharge opening and the slide gate is effected when the upper surface of the slide gate is pressed against the protruding ribs on the bottom side of the seal.

Abstract: The telescopic capsule for a tube or flask comprises a telescopic tube obturated by a top forming plate provided with a lateral aperture for passage, in an open position, of a product contained in the tube or flask. The telescopic tube slides in a ring or envelope of the tube or flask and the telescopic tube is rigidly connected to an operating push-piece movable in a guide and is provided with at least one stop protrusion for preventing an ejection of the telescopic tube.

Abstract: A toothpaste discharger comprises a container having a projected mouth at the lower portion and a socket behind the mouth, the socket being bored two holes at two side walls of the socket and an aperture at the top wall thereof, a washer inserted within the container, the washer being provided with an aperture approximately at the center thereof, and a driving means comprising a driving arm, a toothbrush receiving portion integrally under the driving arm, a pin at the top of the driving arm the pin extending with two flanges thereof within two holes of the socket, an elastic connecting portion in front of the pin, a driving rod connected onto the elastic connecting portion by means of a plug to extend into the container, a resilient element behind the pin to bias against the back portion of the socket, and a tongue portion pivoted on the driving arm to close the projected mouth in normal position.

Abstract: A railway hopper car has a pneumatic discharge structure having a throat leading to a control tube from which lading is pneumatically withdrawn. The throat is opened and closed by valve plates supported on the ends of rods extending through bearings supported in the wall of the control tube. The rods have rack structures mounted thereon operatively engaged with pinion portions of operating shafts extending parallel to the control tube. Rotation of the operating shafts causes movement of the rods and valve plates. Retainer brackets are mounted on the rack structures and include retaining portions spaced and parallel to the rack structures. The pinion portions are supported between the rack structures and the retaining portions to maintain intermeshed engagement of the pinion portions with the rack structures. Stop portions are provided on the bracket which prevent movement of the valve plates beyond the fully open and fully closed positions.

Abstract: A metering slide for fine-grained solids for gastight closing and cross-section-variable opening of vessels and piping in pneumatic conveying systems. A sliding plate provided with a metering opening is moved between two slide rings by a drive in a compression-proof slide casing. The intake side slide ring opening has a predetermined nominal width between 1/10 and 1/3 of the outside diameter of the slide ring. The discharge side slide ring has an inside diameter corresponding to 3 times to 10 times the nominal width of the intake. The slide casing is filled with a lubricant which is under a pressure equal to or higher than the operating pressure of the penumatic conveying system.

Abstract: A lid with an adjustable "guillotine"-type pouring arrangement, which is especially adapted for mounting on the primary color or paint containers intended for car bodywork and which are employed in stirring machines. In this lid, a flat spring which is fastened with a rearward portion to the lid, in front of a stirring shaft of the stirring machine includes at its front side, a flange pressing against a sliding element and, at a distance from the fastening location, two vertically flanges arranged on either side of and proximate each of the longitudinal edges of the sliding element. Two helical coil springs are each connected, at the one end, to each of the flanges on the flat spring and, at the other end, to the rearward portion of the sliding element.

Abstract: A reclosable container is provided and consists of a push-in tab interconnected to a slide panel within a track formed in the metal top of the container. The push-in tab operates to tear a scored portion down into the top for exposing an opening whereby the slide panel can be moved over the opening to protect unused contents within the container.

Abstract: A device for dispensing plastic material from a bag-like container. A case surrounds the bag-like container. An opening in a wall of the case receives the spout of the bag-like container. A panel of the case is releasable and can be urged along the case while bearing on the bag-like container to cause discharge of contents of the bag-like container through the spout.

Abstract: An apparatus for manufacturing a laminated unit of ceramic green sheets comprises an endless belt, and an applying apparatus provided at a predetermined position on the running path of the endless belt. The applying apparatus includes a reservoir for storing a ceramic slurry and a moveable blade. When the belt runs with the blade spaced a predetermined distance from the top surface of the endless belt, the ceramic slurry flows out through a gap between the blade and the belt and, thus, is applied on the belt to a predetermined thickness. The applied ceramic slurry is dried by a drier so as to form a ceramic green sheet. A conductive paste is printed on the top surface of the ceramic green sheet by a printing apparatus. The printed conductive paste is dried by a drier.

Abstract: A dispensing apparatus comprising a container defining a chamber adapted to contain a substance to be dispensed into the atmosphere, the container including a first surface having therein a first opening communicating with the chamber, a plate member including a second surface and being secured to the container with the second surface facing and spaced from the first surface, and a valve plate including a second opening and being trapped between the first and second surfaces in sliding relation thereto for movement between a first position wherein the valve plate closes the first opening and a second position wherein the second opening is aligned with the first opening to permit the chamber to communicate with the atmosphere.

Abstract: An improved valve well-suited for controlling the flow of particulate solids comprises a valve body having a flow passageway comprising inlet and outlet passages extending transversely to a slide chamber. A plug member having a flow orifice, which is preferably of extended length extending transversely through it is mounted for sliding movement within the slide chamber to seal the flow passageway when the flow orifice is out of register therewith and to connect the inlet and outlet passages in flow communication when registered therewith. The flow orifice is preferably of ovoid cross-section and provides, at all operating positions of the valve, a cross-sectional flow area from the flow orifice to the outlet passage which is at least as great as the smallest cross-sectional flow area of the flow orifice. The flow orifice in its wide open position does not restrict the cross-sectional area available for flow between the inlet and outlet passages of the valve body.

Abstract: A jug for pouring liquids such as milk packaged in flexible rectangular pouches has a cross section and height such as to enclose the bag for its full height, the base of the jug being inclined so as to tilt the bag against a flattened front wall of the jug with a top corner projecting through a spout opening where it can be cut to form a pouring spout. The jug has a removable lid which is arched and has inturned side flanges which are pressed apart by out-turned side flanges at the top edges of the sides of the jug as the lid is pushed forward onto the jug so that the lid frictionally grips the jug. Rearward and downward pressure on the arch of the lid tends to force the inturned flanges apart and release the lid.

Abstract: A multiway gravity box and door assembly is capable of selectively storing, transporting and/or dispensing different particulate solid materials. The gravity box has a partition wall to separate the box into two separate compartments each of which communicates with a separate discharge opening from the gravity box. First and second doors are slidably movable in the respective openings and a third outer door overlies the first and second doors and is also slidably movable. Pins are selectively positionable to engage the outer door and either one or both of the first and second doors to selectively open or close the first and second doors when the outer door is opened or closed.

Abstract: A sliding closure unit includes at least one stationary plate having therethrough a discharge opening, and a movable plate mounted in sliding contact with the stationary plate, the movable plate having therethrough first and second discharge openings and including a closing area. Guides define alternative first and second paths of movement of the movable plate in directions along respective first and second tracks extending between the closing area and the first and second discharge openings of the movable plate. A single drive is connected to the movable plate for moving the movable plate along a selected such path between a closed position whereat the closing area is aligned with the discharge opening of the stationary plate and a selected open position wherein one of the discharge openings of the movable plate is aligned with the discharge opening of the stationary plate.

Abstract: The invention relates to an arrangement for actuating a slide-gate nozzle which is installed on the bottom of a casting ladle. This arrangement comprises a cylinder/piston unit which is operated by means of a pressure medium. Elements of a coupling are, in each case, assigned to the cylinder and to the stationary portion of the slide-gate, on the one hand, and to the piston rod and to the movable portion of the slide-gate of the slide-gate nozzle, on the other hand, these elements being in engagement when in the operating position. The invention embodies the combination of the following features, namely that the elements of the first coupling comprise a quarter-turn fastener, this coupling being assigned to the stationary portion of the slide-gate, and to the cylinder, and that the elements of the second coupling comprise a latching mechanism of the snap-in type, this coupling being assigned to the movable portion of the slide-gate, and to the piston rod.

Abstract: A toner vessel for use in a copying machine includes a square dish-shaped vessel body which is opened at the upper part, is provided with an outwardly projecting flange at the peripheral edge of said opening and receives the toner therein. The opening of the vessel body is covered with a lower part of a twice-folded cover sheet and its periphery is fitted on said flange. A cover plate, covering the lower part of this cover sheet, is mounted on the vessel body movably in the horizontal direction. A slit is provided in a place on the portion of this cover plate near the folded portion of the cover sheet, and simultaneously a projection for removing the toner is provided on the inside in the neighborhood of this slit on the side opposite to the folded portion. A folded upper portion of the cover sheet is designed to pass through the slit and then extend through the head of the projection for removing the toner along the back of the cover plate.

Abstract: Improved control over the distribution pattern and the amount of fertilizer, grass seed or the like dispensed by a broadcast spreader is accomplished by mounting a variable rate control device in a material directing chute secured below a basin wall of a hopper. A web or ramp portion of the chute is spaced below a discharge port in the hopper, and the rate control device is rotatably mounted in a housing formed in the rear of the chute to engage a shutter that is slidably mounted under the discharge port.

Abstract: A two piece safety or child resistant closure for a container in which one piece is a cylindrical cap which is attached to the container by threads or by a flange to snap onto the container. The cap has a dispensing orifice which may be located on the end of a spout through which the contents of the container are dispensed. The second piece of the closure is a cover which is rotatably connected to the cap. When the cover is rotated to its closed position, the dispensing orifice is covered and sealed and the cover is locked against rotation. A rocker arm occupying a portion of the cover is connected to the cover by a torsion hinge and contains the locking mechanism. In order to put the closure into its dispensing position, the rocker arm must be depressed at the same time that the cover is rotated. Rotation of the cover to the dispensing position uncovers the dispensing orifice.

Abstract: An improved roller mill construction. Material to be milled or ground is fed through a discharge opening in a hopper to a pair of cooperating rolls that are mounted within a housing. The discharge opening is enclosed by a sliding gate which is biased to the closed position and can be opened by manual operation of a pull rod. An adjustable setting mechanism is incorporated with the pull rod and enables the gate to be held at an infinite number of open positions.

Abstract: A leakproof disposable container lid is made out of the same plastic material that an ordinary container lid is made of. The present invention adds a simple slot to the lip of the lid. A portion of the outer edge is raised forming a slot. A hole is made in this raised portion. A curved piece of lid material with a matching hole slides through the slot. This inexpensive lid prevents spilling while in transit, especially in moving vehicles. The improvement can increase the popularity of take-out beverage items at fast food restaurants reducing spills inside vehicles and at home.

Abstract: A toner vessel for use in a copying machine includes a square dish-shaped vessel body which is open at the upper part, is provided with an outwardly projecting flange at the peripheral edge of said opening and receives the toner therein. A cover sheet is folded on itself to define an upper part and a lower part. The opening of the vessel body is covered with the lower part of the folded cover sheet and the latter's periphery is fitted on said flange. The surface of the upper part, in the vicinity of the fore end of the upper part, is adhered to the back surface of a cover plate arranged movably in the horizontal direction on the surface of the cover sheet upper part.

Abstract: A container for powdery, granular and pellet-like materials comprises a receptacle with an open front, a cover which overlies that open front, and a retaining member that overlies the cover and holds it in place. For slidable securement to the receptacle, the retaining member has rearwardly projecting channel portions along its opposite side edges, defining laterally inwardly opening grooves that receive laterally outwardly projecting flanges on the receptacle side walls, at their front edges. The retaining member is made of an elastomeric plastic impregnated with magnetized material and has a flat front face for magnetic adherence to an upright wall of a refrigerator or range. A hole in the retaining member registers with an aperture in the cover to provide a dispensing outlet that is normally open but is sealed by magnetic attachment to a supporting surface.

Abstract: A large volume silo has in the center of the base a conical dome which, together with the cylindrical outer silo wall, defines an annular base. Open air conveyor chutes pass from the base area through discharge openings to flow regulators in the inner area beneath the conical dome. Closed air conveyor chutes follow on from the flow regulators and lead to a common storage tank in the inner area beneath the conical dome. The open air conveyor chutes can be separated from the bulk material in the silo area by cover slides moveable from the inner area of the conical dome over the open air conveyor chute. This repairs to the conveyor chutes without interrupting silo operation. The cover slides are operated from the interior of the conical dome.

Abstract: Replaceable collector nozzle for a sliding gate. A pressure plate is provided with a collar or ring or other engaging element with interior securing connectors, and positioned beneath the sliding plate. The collector nozzle at its upper portion is provided with threads or other engaging connectors to engage the pressure plate connectors. Alternatively an interlock comprising cammed members interior of the ring or collar mate with corresponding members at the upper end of the replaceable collector nozzle when it rotatably engages the interior of the collar or ring. The collector nozzle can then be replaced during temporary shut off by twisting with a typical chain wrench and a new collector nozzle inserted without disturbing the mounted relationship of the remainder of the sliding gate and the top plate interiorly of the valve. In a further embodiment the coupling of the collector nozzle is a thrust-type which does not require rotation.

Abstract: Refractory plate valves are shown for controlling flow of molten material with structure providing a uniform controllable variable sealing pressure over the entire area of the sliding plate surface which surrounds the depending nozzle sufficient to deflect the refractory plates into a sealing relationship to prevent the intrusion of the molten material between the plates. The uniform pressure is applied to the sliding plate by pressurizing a fluid within a chamber in the sliding gate carrier that is immediately below a flexible diaphragm supporting the sliding plate. This pressure is applied from an external or internal source and may be controlled during the tapping and teeming phases of the use cycle and additionally may be completely relieved for ease of opening and closing of the device during the service phase of the cycle.

Abstract: A tundish for use in casting a ribbon of crystalline or coarse grain polycrystalline material, having a support for a hopper containing molten material, the hopper having a bottom plate and three side wall plates and a top plate, each made of a material which will not interact with the molten material contained within the space defined by the bottom plate, side wall plates and top plate, to impart any significant impurity into the molten material, and wherein the top plate slants downwardly towards the bottom plate to form an elongated orifice through which molten material is extruded onto a cool surface where crystallization of a ribbon of material occurs. As disclosed, the top plate is movable with respect to the bottom plate to change the thickness of the orifice. Also as disclosed, the top plate slides in a slot in each of two opposed side walls and is of a length such that it forms with the third side wall an opening into which molten material is added to the tundish.

Abstract: A heat exchanger consisting of a housing (1) with integrated caloric surfaces (3) for cooling bulk materials (8)--in particular hot foundry molding sands--comprises a retarder system in the form of a sand cascade which consists of an upper perforated plate (9) with many small individual holes (11), of a lower perforated plate (12) with few individual holes (12), said perforated plates being spaced apart by perforated plates (4,15), the sand flow through the slide system (5,6,14) being controllable and sealable.The passage holes may assume the shapes of triangular, longitudinal or T slots in order to operate such a retarder cooler over a large range of regulation.The perforated spacer plates (4) moreover form a support plate with high static load capacities to absorb the substantial weights of the bulk materials.

Abstract: A sliding gate valve of the type in which refractory gates are sequentially disposed in operative position beneath the pour opening from a teeming vessel, such as a tundish, is effective to controllably throttle the metal flow stream from the vessel. Operator means for positioning the gates in order to control the degree of throttling of the flow stream are independent from the operator means for disposing the gates in their working position within the valve mechanism whereby the flow stream can be terminated without adjusting the throttling configuration of the valve. Means are provided, when the valve employs a pour tube attachment, for selectively changing gates and pour tubes in unison, or independently from one another. The valve mechanism and its replaceable refractory components are designed for the supply of fluids for cooling these members and for the injection of fluid reactants into the metal pouring process.

Abstract: A sealing top for containers for powdered or granular materials which permits controlled discharge of the container contents without clogging and which is provided with a valved opening by which the sealing top may be opened and closed.

Abstract: Conventional dispensers are often crude containers with wheels which dispense asphalt by tipping the container and then spreading same manually or by chains or utilizing a relatively inaccurate feed mechanism within the container. The present device is a wheel mounted container insulated to retain heat and thus maintaining the asphalt or similar material in a fluid condition. Adjustable metering valves control the flow and hence the volume of the material dispensed either in a mopping or glazing mode or in a ribbon mode which is also adjustable for width. The machine can be placed in a filling and transport position supported on two main wheels or can be rotated to a dispensing position supported upon the same two main wheels and a third support wheel which also controls the clearance of the dispensing valves from the floor.

Abstract: The invention relates to a slidable closure element for slide closures of metallurgical vessels, composed of a one-piece plate of heat resistant material which is engaged at its two opposite narrow edges by frame members that are drawn together by screws serving to tension them and hold them in contact with the edges of the plate.

Abstract: A broadcasting apparatus for pulverant or granular material including a frame supported by wheels, an axle extending between the wheels and connected in driving relationship with at least one of the wheels, a material hopper mounted on the frame and having an opening in its bottom wall, a valve adjustable across the hopper opening to control the flow of material therefrom, a guide for the valve to retain the valve in selected position adjacent the hopper opening, a dial having a cam surface, a member connected to the valve and bearing on the dial cam surface, a mount for the dial connected to the bottom wall of the hopper and guiding the connecting member, a broadcasting plate disposed beneath the valve and connected to the axle to rotate upon movement of the wheels, and an agitator within the hopper connected to rotate with the shaft and broadcasting plate.

Abstract: Access to a cement metering wheel for purposes of cleaning, without spilling cement from a storage tank disposed above the metering wheel, is provided by pivoting the wheel assembly downward and away from the bottom of the tank. A gate slot in the bottom of the tank is adapted to receive one or more blocking plates, prior to pivoting the wheel assembly, so as to block the gravity-feed outflow opening from the tank. Selectively removable slot covers are provided to prevent cement spillage from the open side of the slot during normal cement metering operation.

Abstract: A hopper discharge device including a hopper with discharge opening, a pair of door support guides, a door slidingly engaging the guides for opening and closing the hopper discharge opening and a rotatable shaft with one or more sprocket wheels adapted to engage the door in rack and pinion manner for opening and closing the door. The door is provided on its undersurface with one or more longitudinally extending channel members, each channel member containing a section of roller chain therein. The sprocket wheels mesh with the rollers of the flexible roller chain to prevent build-up of ice, dirt, grain particles, and other debris in the sprocket wheel's contact with the chain. A wear strip of anti-friction material on the door facilitates the opening and closing of the door.

Abstract: A process and a mixing head for the production of a reaction mixture comprising at least two reaction components, with a high degree of mixing. By this process, reaction components are introduced, at a high pressure into one end of the mixing chamber of the mixing head, these components being deflected by the front of the discharge piston which forms the opposite end of the chamber, a counterflow forming intensive turbulences on the wall of the mixing chamber and on the boundary surface with the incoming flow before this counterflow exits the mixing chamber at the same end through which it entered the chamber, substantially as a radially-directed, laminar flow.

Abstract: A bulk material container having a pair of slings connected to the sidewall thereof for supporting and transporting the container is provided with an opening in its bottom wall for dispensing bulk material therethrough. The opening is opened and closed by a slide valve gate having handles at opposed ends and an off-center opening adapted to be placed into full or partial registration with the opening in the bottom wall of the container to control the flow of bulk material from the container.

Abstract: The invention relates to a cooler for granular products, essentially consisting of a cooling reservoir, a product inlet at the top, and two grids for the discharge of granules, which grids are movable relatively to each other. In the cooling reservoir a current of air is generated by means of a blower, the cooling air being drawn in through the granule discharge grid and being passed through the cooling reservoir countercurrently relatively to the product to be cooled. The air inlet for the blower is disposed in the top part of the cooling reservoir adjacent to the granule inlet lock. Any fines present in the granular product are exhaused direct by the blower. For this purpose a controllable opening is provided in the suction tube of the blower for drawing in secondary air. The product discharge grid is of such construction that in the closed condition it is permeable to air without permitting the product to be cooled to flow out of the cooling reservoir.

Abstract: In a discharge gate arrangement for cargo hoppers for bulk cargo, a cover is guided for sliding in its own plane between a closed and an open position. The cover is also mounted for movement towards and away from the plane of the discharge opening at the end of the closing movement and the beginning of the opening movement, respectively. In the closed position the cover presses against a gasket laid around the opening, providing a gas- and liquid-tight seal.

Abstract: An assembly of a nondetachable closure and a metal neck of a container in which the neck closure is contoured with sealingly interfitting parts and the closure also provides a protective guard for the thin, distortable neck.

Abstract: An enclosed railroad car has hoppers at its underside for unloading a solid commodity. A pneumatic outlet trough is opened and closed by a slide valve or gate that is attached to operating rods supported in slide bearings. The gate can be safely removed from outside of the car by disengaging a pin that locks the gate to the operating rods.

Abstract: A box-like container having a bottom support and a tubular body features a slide gate on the tubular body to facilitate the selective removal of bulk pack materials such as metal powders and the like.