Abstract: A power actuated closure assembly for controlling the discharge of materials from an opening in the bottom of a hopper, the assembly including a frame having a sliding door support portion with a power actuator support portion extending longitudinally therefrom and supporting a cylinder whose piston rod is coupled to the door by a longitudinal bar which is guided by a fixed guide, the piston rod being connected with the door moving bar by a lost-motion coupling, the guide through which the bar passes having a latch for locking the door and bar in one of several selected positions and the guide also having a longitudinal slot capable of receiving a pin carried by the bar, the pin and slot limiting the movement of the door to a small increment suitable for spreading material over a large area such as a roadway.

Abstract: A dispensing valve comprising a gate slideable transversely over the outer end of a passage from which is to be dispensed various viscous substances. The gate is slideable substantially at a right angle to the axis of the passage and the gate slide and guide are curved transversely relative to the direction of sliding movement so that the gate will be pulled axially into sealing engagement with the outer end of the passage as it moves thereover. Reciprocation of the gate can be accomplished with the fingers of one hand due to the provision of the cooperating lug arrangement on the slide gate and guide.

Abstract: A measuring and dispensing cap for a container internally divided into two compartments, one compartment being a tubular section in direct communication with the container and its contents and an offset extension from said tubular section; a wall partially dividing said tubular section from said offset extension to compartmentalize the cap; an aperture in the wall of said extension for the emission of flowable materials contained therein and a slide movably covering said aperture whereby when said container is tilted from an upright position flowable material therein passes through said passage section and a predetermined amount passes into said measuring section and is maintained therein when said container is returned to said upright position for emission through said outlet means.

Abstract: An improved caulking gun has a usual semicylindrical frame with a disc-shaped rear wall and a split front wall. A handle and trigger mechanism is mounted on the rear of the frame for advancing a plunger forwardly within the tube to discharge caulking material from the tube through the spout. A guide channel is mounted on and extends along the bottom of the frame and curves upwardly along and is spaced from the split front end. A flat strip of flexible metal is slidably mounted in the channel and has a front cutting edge which cuts partially through the plastic spout when a new tube is placed in the frame. The outer end of the metal strip blocks the flow of caulking material from the spout. A lever is pivotally mounted on the guide channel and is engaged with the metal strip for moving the strip between a flow-blocking position and an open material-discharge position.

Abstract: An integral double-wall container, made of a synthetic plastic, for handling bulk materials such as liquids and powder, and adapted to be lifted and moved by means of a forklift truck. An integral one-piece double-wall hopper bin for dispensing liquid and powder. A method of making integral double-wall containers and hopper bins by rotational molding.

Abstract: A very large hopper capable of discharging concrete of varying consistency onto a moving belt conveyor in a smooth continuous ribbon. The hopper will handle concrete which is predominately mortar, up to concrete having aggregate comprising 4 to 6 inch mean diameter rocks. In a preferred embodiment the hopper has a flat inclined wall containing a discharge opening closed by a sliding primary gate with a "W" shaped leading edge; the primary gate also having a discharge opening closed by a sliding secondary gate.

Abstract: The present invention relates to a device for extracting and proportioning pulverulent products comprising a hopper and coaxial screws with threads of opposite directions, driven in rotation in a cylindrical conduit, which screws are separated from each other by the wall of a tube coaxial to the screws and to the conduit, the screw of smaller diameter rotating inside the tube to convey the product therein in one direction and the screw of larger diameter rotating outside said tube to convey the product in the opposite direction, in the space defined between the tube and the conduit, said latter comprising on its periphery at least one orifice for the flow of the product, wherein said screws are composed of wires helically wound in the manner of a spring, and the tube in which the so-called extraction screw, of smaller diameter, is mounted, comprises on its periphery and on the hopper side an opening for the inlet of the product, in front of which said screws extend at least partially, which product, after hav

Abstract: A reclosable sack having a cross-bottom formed by folded-over side flaps has the confronting edges of the flaps spaced apart to define a slideway for a closure strip which is provided with a hole and is retained in the slideway by a cover sheet. When the closure strip is slid to a position where the hole is out of registry with emptying holes pierced in the material overlying and underlying the strip, the sack is substantially sealed.

Abstract: The specification of the present invention discloses an automatic bottle cap that may be applied to an opened receptacle. The valve used in this cap automatically opens when the receptacle is tipped for pouring and closes when the receptacle returns to the upright position. The device uses two permanent magnets positioned such that a net unbalanced force exists between them which is used to open or close the valve. The movement of one magnet within the structure causes the direction of the net unbalanced force to be reversed causing the second magnet and associated valve stem to move and open or close the valve.

Abstract: An improved child resistant sifter fitment and closure for containers of harmful products includes an inverted cup-shaped body member formed of resilient plastic material and an integrally molded locking flap connected by an integral hinge to the periphery of the panel portion of the body member. The locking flap folds into a conforming recess in the top surface of the panel, and, in its folded position, all edges of the locking flap are flush with the adjacent top surfaces of the panel. Co-operating locking surfaces are provided on the flap and the body portion to retain the locking flap in its folded position, and to permit limited longitudinal movement of the locking flap relative to the panel. Dispensing openings are provided in the panel underlying the locking flap and an equal number of apertures are provided in the locking flap which are alignable with the dispensing openings by a longitudinal movement of the locking flap relative to the panel.

Abstract: A three-plate slide valve closure includes an upper stationary plate fixed beneath an outlet in a liquid melt container, a lower stationary plate positioned at a location spaced from the upper stationary plate, and a slide plate mounted between the upper and lower stationary plates for sliding movement between open and closed positions. The upper stationary plate, the slide plate and the lower stationary plate have extending therethrough first, second and third flow-through openings, respectively, which are aligned when the slide plate is in the open position. At least the upper inlet portion of the third flow-through opening, adjacent the slide plate, has a dimension in the direction of movement of the slide plate which is at least twice as great as the dimension of the second flow-through opening in such direction of movement.

Abstract: A method and apparatus for discharging freshly reduced material from a shaft furnace and controlling release of spent reducing gases so that they are not a hazard. The apparatus includes a pair of surge bins and means for directing material selectively to either bin. Gas-seal valves having purge means are located above the respective bins. Gas-seal flapper valves are located below and are movable to positions wholly out of the path of material discharging from the bins.

Abstract: A combined closure and dispensing control top for closing containers and for controlling the rate of dispensing of the contents of the containers when inverted. The top has a housing defining a body member with fore and ejection chambers interconnected by a passageway. A closure member has a piston portion positioned for sliding movement within the ejection chamber for controlling the effective size of the passageway. The piston portion is movable between a blocking position closing the passageway and a dispensing control position which determines the effective size of the passageway. The ejection chamber has front and rear openings, with the front opening being closable by an intermediate portion projecting forwardly from the piston portion. Prior to initial dispensing from the container, the closure and dispensing control member has an enlarged portion positioned outside of the housing and connected to the intermediate portion.

Abstract: An asphalt mix storage bin outlet is surrounded by a rim member having a flat bottom surface in which there is an annular groove that extends around the outlet. An outlet closure comprises a plate-like edgewise slidable gate member mounted on rollers that ride on parallel rails at opposite sides of the outlet. The rails have long, straight portions along which the gate member rides to and from its open position with its top surface spaced below the bottom surface of the rim member, but as the gate member nears its closed position it rides up onto wedge-like portions of the rails that cam it towards snug engagement of its top surface with the bottom surface of the rim member. For an airtight seal with the gate member closed, grease is forced into the groove in the rim member, to be distributed around the outlet by the groove and thence forced into any space between the opposing surfaces of the rim member and gate member.

Abstract: An apparatus for measuring and dispensing a predetermined quantity of particulate material from a container. The apparatus includes a measuring and dispensing assembly permanently secured at least in part within a container, particularly a disposable container such as a box of dry laundry detergent. The measuring and dispensing assembly defines a chamber within the container which may be opened to permit a predetermined measured quantity of the contents of the container to enter thereinto, and then closed to separate the measured quantity from the remaining contents of the container. To permit dispensing of the measured quantity of particulate material from the closed chamber, the assembly further includes a movable member which may be moved to expose a discharge opening in the container which is adjacent the chamber.

Abstract: Method of casting an integral slide gate and nozzle assembly wherein a casing (11) conforming to the exterior sides and bottom of the valve is placed upside down on a flat smooth plate (12), a tube (14) is placed within the mold so formed to produce a channel in the cast valve, a first castable refractory exhibiting good resistance to molten metal is cast in the bottom of the mold, a tube (19) is placed about the passage-forming tube (14), the same first refractory castable is cast between the two tubes, and a refractory of lesser resistance to molten metal is cast within the remainder of the mold, the second tube (19) being removed after the casting is complete. Preferably casting is carried out while vibration is applied to the mold, the vibration continuing until after removal of the second tube (19). The second refractory can be an insulating material. Preferably the first castable is a high alumina material, for example one containing over 70%, most preferably over 90%, Al.sub.2 O.sub.3.

Abstract: A dispensing carton made from a single blank which is capable of being formed, filled and sealed on automatic equipment. The dispensing carton is made tamperproof by providing for a cover tab, which must be removed from the carton before a slidable closure section can be displaced to open the carton. The removal of the cover tab permanently alters the appearance of the carton which acts as a deterrent to tampering. The dispensing carton further provides a slidable closure section rupturably connected to the carton, which requires no hinge connection to the carton after its initial use. The slidable closure section is further provided with a locking flange which cooperates with a cut line in the carton to control the longitudinal displacement of the closure section.

Abstract: A gating mechanism for selectively opening and closing the bottom outlet of a container such as a tank, bunker or silo, serving for the storage of bulk material, comprises a metallic slider shiftable along the underside of a metallic sealing frame surrounding the outlet, the slider being urged upwardly against that frame by strong compression springs or fluidic jacks counteracting the internal pressure of the goods. The slider, which has a cutout registering with the outlet aperture upon being aligned with the sealing frame, is displaceable between this alignment position and a closure position by a rack on its underside engaged by a driving pinion. A base supporting the slider and forming a channel for the discharged bulk material carries a funnel of rectangular cross-section which defines the outlet and has a flange vertically separated from a discharge port in the container bottom by an interposed spacer frame which can be replaced by a shutter plate of like thickness, e.g.

Abstract: A bin with a hopper bottom is provided for storing and dispensing dog food, including a sliding gate located at the bottom of the hopper for regulating flow of dog food from the bin. The gate includes a solid center section which prohibits flow of dog food from the bin when positioned across the outlet hole at the bottom of the hopper, an opening which allows dog food to flow from the bin when positioned in alignment with the outlet hole, and handle means on its forward end projecting out the front of the dog food dispenser for convenient manual operation. The sliding gate also includes unique forms of agitators connected thereto and protruding upwardly through the outlet hole and into the bin in such a way as to agitate the dog food in the vicinity of the outlet hole as the gate is slidably moved thereby breaking down bridging of the dog food particles and encouraging smooth flow of the dog food from the bin.

Abstract: An end gate cleanout apparatus which includes a plurality of slidable trays that can be connected end to end and moved into the bottom of a grain dryer or other apparatus and including driving means for removing or inserting such removable troughs so as to allow material to fall from the dryer.

Abstract: A dispenser carton capable of being formed from a single-piece paperboard blank is disclosed. The blank is suitable for erection into a rigid, rectangular container having a measuring chamber therein which is provided with a "locked-in", slide-valve discharge opening at the dispensing end of the chamber which is reclosable.

Abstract: A graduated measuring cup having a sloped transverse wall surface for directing liquid contents toward a centrally located outlet orifice for gravity flow discharge. A sluice valve assembly is attachable to the cup in registration with the outlet orifice for selectively regulating the rate of discharge flow. The sluice valve assembly is detachable from the cup for cleaning or replacement. A strainer basket having an apertured disc inset is positionable over the mouth of the cup for filtering incoming liquids.

Abstract: In a refuse compaction/ejection system, an improved ejection door having a lower hinged member which reduces the degree of door extension required to obtain an effective open discharge path and a catch-lock means for guiding and retaining the hinged member into closed configuration when the door is in the unextended position. The lower door member is hinged to an upper member which travels a fixed upward path during ejection operations. As the hinged member is carried upward by the upper member, the lower lip of the lower member is withdrawn from the catch-lock means, permitting rotation in an axial rearward direction about the hinge due to the force of discharging refuse. With the refuse ejected, the hinged member returns to its nonrotated natural position, causing the lip of the lower hinged member to catch in rearwardly extending catch-lock means upon the retraction cycle.

Abstract: A teeming valve for use on a molten metal vessel in which yieldable support is provided over the operative surface of a block having a teeming opening which is reciprocated in and out of register with a teeming opening in the vessel. The block is a two piece refractory and the yieldable means are air cooled spring and pressure pads. The method contemplates deflecting relatively movable refractory surfaces to conform the surface of one to the other.

Abstract: The invention discloses a seed holding hopper or the like, which is mounted in vertical position on a planter vehicle. The hopper is cylindrical, closed at the top by a lid or cover, and closed at the bottom by a bottom member which has the usual seed exit opening through it. A clean-out opening is provided in the cylindrical wall of the hopper close to the bottom and a closure member is mounted on the inside of the hopper, conforming in shape to the cylinder portion of the hopper with guides holding the closure member close to the adjacent wall of the hopper and slidable vertically downward to close the clean-out opening and upwardly to clear the opening so that one may clean out any seed left in the hopper. The closure member, in open position, extends out through the top of the hopper and must be safely in the closed position for the lid or cover of the hopper to be placed in its usual position closing the hopper.

Abstract: Apparatus is provided for use in filling charcoal adsorber air filter cells by dispersing the particulate charcoal into the filter while the apparatus is disposed vertically above the filter. The apparatus is particularly adapted to produce an even packing density of particulate charcoal in the filled air filter without the necessity of vibrating the air filter once the charcoal has been allowed to fill the filter to the top. A method is provided for semi-automatically, pneumatically filling the apparatus and the charcoal adsorber air filter. Some embodiments of the apparatus are adapted for filling two or more charcoal adsorber air filters simultaneously.

Abstract: An ear mold injection dispenser for dispensing impression material into an ear canal and a cavity of the ear. The dispenser includes a tubular body having a valve. The impression material is mixed inside the tubular body. A plunger is inserted into the tubular body and the valve is open. The plunger pushes the material through the valve into a funnel which is inserted into the ear. The funnel is detachable from the tubular body so that the correct size of funnel can be selected for inserting inside the ear canal.

Abstract: A resilient seal that may be removably mounted on the downwardly and inwardly tapering bottom portion of a hopper that defines a discharge opening, to cooperate with a gate in the form of a slide plate that normally closes the discharge opening to prevent moisture or water entering the interior of the hopper through the discharge opening when the gate is in a closed position. When the hopper has a water-tight cover mounted thereon, the resilient seal cooperates with the hopper to define a confined space within the interior thereof that is substantially moisture-proof, and one in which granular material, such as rice that is adversely affected by moisture, may be transported or stored.

Abstract: A sliding gate valve for pouring molten metals has a slide carriage bearing a slide plate and a separate pouring bushing, the latter being mounted in a flanged collar and the carriage having spring loaded bolts, (i) to press the flange of the bushing collar against the slide plate and (ii) to press the slide plate against a head plate of the valve, to seal bushing to slide plate and slide plate to head plate, and the slide and head plates being identical and having identical sealing means.

Abstract: A method of regulating the flow of molten metal through the pour opening of a vessel is disclosed which is characterized by a combination of a pair of load detecting elements and a contactor which is disposed between the load detecting elements such that there is effected control of a hydraulic cylinder for actuating a sliding control nozzle which is capable of moving bit-by-bit resulting in the fine regulation of the sliding control nozzle.

Abstract: A hopper for disposing of machining refuse which comprises a hopper body having an inlet zone at one end and an outlet zone at the other end thereof, said outlet end being angled from said inlet end, said hopper body being provided with side walls which extend outwardly towards said outlet end, so that the diameter of the outlet end is larger than the diameter of the inlet end, gate means operatively associated with said outlet end for opening and closing said outlet end and a screw conveyor means rotatably disposed in the lower portion of the hopper, said screw conveyor means being directed toward the outlet of the hopper.

Abstract: Improved easy opening means for containers. Especially adapted to those used for liquids, including carbonated beverages, and permitting drinking from the container or pouring out contents. An important feature is attachment of closure to container after opening to avoid litter. One closure design has lift tab attached to the closure for easy opening, and with closure sealed by either a frangible adhesive sealant or by membrane sealing means. Lift tab initiates rupture of sealant, and then both lift tab and closure are pushed below container top with means to hold tab below opening so there is no interference when drinking from the can. Another closure has a small end for initial pressure release and starting rupture of sealing means, and then whole closure hinges inwardly. Still another means comprises a slide gate with frangible membrane for sealing and for very easy opening. Slide gate is non-detachable and has sharp points for easier rupture of membrane during opening.

Abstract: A closure apparatus is provided for optionally closing and opening a storage hopper portion of an adsorber filter fill system used for filling adsorber filter cells in a gas adsorber filter system. The closure apparatus is particularly adapted to have a portion thereof move with respect to a metering means of storage hopper of an adsorber filter fill system between first or open and second or closed positions, so as to optionally, selectably permit the opening and closing of the storage hopper. The closure apparatus provides a substantially air-tight seal at holes in the metering means of the adsorber filter fill system when the closure apparatus is at the closed position. The closure apparatus is designed so that its sliding operation and maintenance of substantially air-tight seals is not adversely affected by the presence of any granules of adsorbent which remain in the holes in the metering means or in the vicinity of the holes in the metering means once filling of the adsorber filter system is completed.

Abstract: A door construction utilized to control the discharge of material, especially particulate material such as feed and grain, from the outlet of a receiver in which the material is being processed or stored. The structure employs a door member in the outlet which slides in a self-cleaning, inclined track formed by a pair of rails at each side margin of the member. The outer rail of each pair is in surface contact with the respective margin, whereas the inner rail is essentially in line contact with the margin and is part of a transversely U-shaped component that provides a passage along the margin which receives material that may enter the track. Such material is conveyed by gravity flow through the track passages and returned to the receiver, thereby providing the self-cleaning action to prevent the door member from freezing in the track and also preventing leakage of material when the door member is shut.

Abstract: A vacuum sealing for the discharge nozzle of a casting ladle as for liquid steel is disclosed. The vacuum sealing, which prevents the penetration of atmospheric gases through the porous refractory discharge nozzle, is arranged in a vacuum-tight manner below the discharge nozzle. The vacuum sealing consists of clingy plastic films or thin metal sheets.

Abstract: Disclosed is a slidable gate for controlling flow of liquid metal from a bottom pour vessel. The gate is springpressed against a top plate. The springs engage bolts, the heads of which have a large number of small projections contacting the underside of the gate, whereby less heat is transmitted from the gate to the bolts and springs, and their useful life is prolonged.

Abstract: A slidable gate mechanism for controlling flow of material from an outlet in the bottom wall of a vessel. The gate is mounted in a carrier which is supported for sliding movement under the bottom wall. Springs mounted on a side wall of the vessel act on the carrier to urge the gate upwardly toward the bottom wall. The springs are remote from the outlet and do not require air-cooling.

Abstract: A slide gate nozzle for the spout of metallurgical vessels includes a pair of plates, arranged on the opening of a pouring channel. The plates include a fixed bottom plate and a displaceable sliding plate. A metal part is provided in the pouring channel of the spout of the vessel. This part closes the cross section of the channel and is constructed in such a manner as to be cooled and/or give off heat on the side thereof which is turned away from the interior of the vessel.