Abstract: A centrifugal compressor includes: an impeller provided in a housing; a throttling portion provided in front of the impeller in the housing; an actuator rod connected to an actuator and including a plate portion including a plane at its end; and a connecting portion connected to the throttling portion and including a pair of projections facing each other across the plate portion in an axial direction of the actuator rod.

Abstract: In a wastegate valve which is provided in the bypass path bypassing the turbine of the turbocharger in the exhaust gas path and which opens and closes the bypass path, the wastegate valve is provided with a valve seat which is formed in a plane perpendicular to or tilted with an inclination angle with respect to an axial direction of the bypass path, and a valving element which is pivotable around a pivot point which has a relationship of 0°<?<90° with respect to the plane including the valve seat where ? is an inclination angle, the valving element being moved away from or closer to the valve seat by pivotation of the valving element to open or close the valve.

Abstract: In a gate valve including a valve plate connected to a valve plate mounting portion of at a tip end of a valve rod with a connecting plate and configured to open and close a communicating hole of a valve box with the valve plate, the valve plate includes a mounting hole, a joint flat surfaces coming into press-contact with each other, the valve rod includes a depressed-shaped joint shoulder portion, the joint shoulder portion is formed with an inclined surface configured to guide the valve plate in the direction in which the joint flat surfaces are brought into press-contact with each other, and the coupling plate couples the valve plate and the valve rod with each other.

Abstract: A gate valve for a vacuum chamber comprises two carriers (5a) each connected to a frame structure providing an essentially plane front by two parallel links (6) and to an actuating rod (12a) by parallel levers (14). Upward motion of the actuating rods (12a) by a piston (17) causes, via the levers (14), upward motion of the carriers (5a) which is transformed into a circular motion by the links (6) where the carriers (5a) at the same time approach the front while remaining parallel to it, moving sealing plates (9) which are fixed to the carriers (5a) to an active position where they press against the front and seal openings (3) therein. Retraction of the piston (17) effects an inverse motion, whereby the sealing plates (9) are completely removed from the openings (3) and the latter made easily accessible.

Abstract: There is disclosed a control valve suitable for particulate flow and/or for a liquid stream, comprising a spherical surface with cut-off top and bottom areas, a cylindrical extension depending from the cut-off top area of said spherical surface, a collar further extending from the cylindrical extension, a common internal diameter passage through said spherical surface, cylindrical extension and collar, and said valve further comprising opposing arcuate lids, having an interior spherical concave surface, hinged to the spherical surface to provide a close tolerance relationship with the spherical surface, and an overlapping band on one of the lids to create an arcuate, spherical, concave, recessed area for reception of the leading surface of the other lid, which lids open and close at fast rates by outside means to provide an intermittent seal to the flow of the particulate or of the liquid during the operation of the control valve.

Abstract: The present invention relates to a valve. The valve includes a valve element having a metering opening, a valve gate which is movable in translation for the opening and closing of the metering opening, an actuating actuator configured for the execution of a tilting movement, and a lever arm which is coupled to the actuating actuator and which converts the tilting movement of the actuating actuator for the opening and closing of the metering opening into a translatory stroke movement of the valve gate.

Abstract: A cooking appliance equipped with at least one regulating valve having a rotary regulator organ. The rotary regulator organ has an actuating shaft a plurality of peripheral openings adapted for regulating a flow of gas through the regulating valve. In a first angular position the rotary regulator organ is adapted to supply a constant flow Qmin of a first type of fuel through a first peripheral opening. In a second angular position, successive to the first angular position, the rotary regulator organ is adapted to supply a constant flow Qmin of a second type of fuel through a second peripheral opening. In one implementation a feature that rotates with the actuating shaft is adapted to engage a feature on the cooking appliance to limit the rotation of the rotary regulator organ to the first angular position.

Abstract: A gate valve for a system controlling cooling in a turbomachine is disclosed. The gate valve includes a gate mounted so that it can pivot about an axis between a position in which it shuts off an air passage orifice and a position in which it opens the orifice, and a rotating device for rotating the gate about the axis. The rotating device includes two superposed coaxial rotary members collaborating with one another via cam surfaces designed such that rotating the first rotary member from the shut-off position causes a translational movement of the second rotary member and of the gate along the axis of rotation followed by a rotation of this member and of the gate about this axis.

Abstract: Gate for throttle valves composed of a central supporting portion constituted by a thermoplastic material and an edge portion constituted by a thermoplastic elastomeric material belonging to the same chemical family as the thermoplastic material; the gate is produced by means of a coinjection process of the thermoplastic material and the thermoplastic elastomeric material.

Abstract: An apparatus for controlling a fluid discharge through an opening in a conduit includes a conduit section, conduit inlet, conduit interior, conduit exterior, and a conduit outlet or opening having a continuously curved perimeter surface with oppositely disposed concave sections and convex sections that are continuous. Also, first and second curved gate members are rotatably mounted and are axially slidably lockably engaged to the conduit exterior including structure to move the gate members symmetrically from a closed position to an open position remaining adjacent to the outlet, the gate members in the closed position are adjacent to the outlet and are adjacent to each other. In addition, fluid sealing between the outlet and the gate members, between the gate members, and between the gate members and the outlet, when the gate members are in the closed position. The gate members are operational to control the fluid discharge through the outlet.

Abstract: An apparatus for performing high-speed interruption of high-speed fluid jets (30) of the type used to cut food, plastics, wood, metal, and other products. The water jet (30) is interrupted by a blocking bar (22) mounted on a housing (12). The blocking bar (22) is pivoted by actuators so that the bar is disposed away from the high-speed fluid jet (30) in the open position and blockingly intersects the high-speed fluid jet (30) when in the blocking position. At least one of the actuators is an electromagnet assembly (20) and (21) having a selectively energizable coil (78) such that energizing the coil (78) will induce a magnetic field. The blocking bar (22) has an area of high magnetic permeability (114), wherein the bar (22) may be pivoted by application of the magnetic field generated by the coil (78) upon the area of high magnetic permeability (114).

Abstract: A storm sewer overflow control device for controlling runoff surge flows from a generally vertically oriented storm drain into a generally horizontally oriented storm sewer pipe includes an engagement portion configured for insertion into the storm sewer pipe, a flow control portion attachable to the engagement portion and configured for receiving runoff surge flow flowing down the storm drain and slowing the flow for entry into the storm sewer through the engagement portion. The engagement portion is radially expandable to tightly and frictionally engage an interior surface of the storm sewer pipe, and preferably is configured to expand radially as it is shortened axially.

Abstract: A swing gate valve for closing a lateral discharge opening in an elongated conduit includes a swing gate shaped to fit around the exterior of the conduit in an open position adjacent the lateral opening. A pair of pivotable swing arms are connected to the swing gate on opposite sides of the conduit, and are operated by an air ram to swing the gate to move it to a closed position over the discharge opening to an open position.

Abstract: A dump valve apparatus is disclosed for dumping water from a firetruck. The apparatus includes a flange sealingly secured to the firetruck, the flange defining an opening for the flow therethrough of the water. A faceplate has an inner and an outer face which define an aperture, the faceplate cooperating with the flange. A seal is disposed between the flange and the inner face of the faceplate such that when the faceplate is urged towards the flange, the flange and the inner face are sealed relative to each other. A dump valve chute is rigidly secured to the faceplate and extends through the aperture of the faceplate, the dump chute defining a valve seat. A hinge has a proximal and a distal end, the proximal end being pivotally connected to the inner face of the faceplate. The hinge freely pivots within the opening of the flange. A valve door has an inner and an outer surface, the valve door being pivotally secured to the hinge between the proximal and distal ends thereof.

Abstract: A valve system for a bag and box combination employs a fitment having an inner mounting flange secured to the inner surface of a bag and with a projecting portion projecting out through a hole in the bag and into a passageway in the outer container. A valve plate is positioned within the bag and mounted to rotate with a shaft between an open position wherein the valve plate does not obstruct the flow passage through the fitment and is axial space from its cooperating seat form by the inner surface of the mounting flange and a closed position where the valve plate is pressed towards and cooperates with the inner face of the mounting flange in surrounding relationship to the flow passage to seal the flow passage.

Abstract: A device is provided for controlling a discharge of a heavy material from a container such as a bucket, hopper or bin. The device generally includes a combination of gears and levers to couple rotation of a hand wheel or other bar to motion of the release door of a container such that the gears provide a force to the release door which is much greater than that applied to the hand wheel or bar. More specifically, the device may consist of a hand-driven shaft capable of being rotated by a hand wheel or other device. The rotation of this shaft may be coupled by interlocking gears to the rotation of a drive shaft, which is attached to the release door of the container by a lever, such that rotation of the drive shaft causes the release door to open or close, regulating the discharge of concrete or other heavy material from the container.

Abstract: A plastic throttle body valve including a valve body having an interior passage way connecting an inlet and an outlet of the valve body. The valve body includes an arcuate surface through which the inlet is provided, and a closure member pivotally attached to the valve body for selectively opening and closing the inlet. The valve has the advantage that there is no obstruction in the air stream when the valve is wide open.

Abstract: A plastic throttle body valve including a valve body having an interior passage way connecting an inlet and an outlet of the valve body. The valve body includes an arcuate surface through which the inlet is provided, and a closure member pivotally attached to the valve body for selectively opening and closing the inlet. The valve has the advantage that there is no obstruction in the air stream when the valve is wide open.

Abstract: A pivoting gate valve assembly includes a seat plate with an orifice therethrough, a stop plate and a gate. The stop plate is mounted on the seat plate and borders a portion of the orifice. The gate is pivotably mounted to the seat plate and pivots to a closed position against the stop plate and covering the orifice. The gate and the stop plate form a substantially flush contiguous surface when in the closed position.

Abstract: A vortex valve (40) includes a housing defining a votex chamber(44), the housing having an inlet (46) through which liquid may enter the vortex chamber (44)in a manner to promote swirl within the vortex chamber (44) and an outlet (30) at one axial end of the vortex chamber (44). A wall of the housing is provided with an opening which is normally closed by a closure, this closure (6) being operable between the closed position and an open position in which livid may enter the vortex chamber (44) by-passing the inlet (46). The vortex valve is free from a spring device capable of urging the closure (6) from the open position to the close position. The vortex valve (40) may be provided at the outlet of a gully and is useful in enabling a blockage, which may occur at the inlet (46) of the vortex valve (40), to be by-passed, thereby draining any accumulated liquid in the gully. The blockage may then be removed when the gully is relatively dry.

Abstract: A improved silo is provided having a pair of pivoting receiver gates overlying a pair of receiver openings and a pair of pivoting discharge gates overlying a pair of discharge openings. A deformable seal is secured to the silo between the receiver openings and the receiver gates and between the discharge openings and the discharge gates. The gates are vertically adjusted by an eccentric assembly to compress the respective deformable seal for forming an air tight barrier between the respective openings and the gate.

Abstract: There is provided a vortex-valve which comprises a housing defining a vortex chamber, a housing having an inlet through which liquid may enter the vortex chamber in manner to promote swirl within the vortex chamber and an outlet at one axial end of the vortex chamber. A wall of the housing is provided with an opening which is normally closed by a closure, this closure being operable between the closed position and an open position in which liquid may enter the vortex chamber by-passing the inlet. The vortex-valve may be provided at the outlet of a gully and is useful in enabling a blockage, which may occur at the inlet of the vortex-valve, to be by-passed, thereby draining any accumulated liquid in the gully. The blockage may then be removed when the gully is relatively dry.

Abstract: A shutter mechanism which includes simultaneous translation of a shutter in two planes of motion prolongs the life of the sealing material of the shutter as well as ensures that, when open, an optical beam passes through a sample compartment without interference or disruption. A further advantage of such a mechanism lies in the positive sealing of a port with sufficient pressure applied via the shutter plate to prevent vapor or fluid communication across the port.

Abstract: A double valve assembly for regulating the feed of particulate material to or from a pressure vessel comprises a valve casing containing a flow-regulating valve and pressure sealing valve in series. Particulate material is fed to the valve assembly through a feed tube located at the top of the casing. The flow-regulating valve comprises a dish-shaped valve member swingable from a first position wherein it confronts the bottom of the feed tube and blocks flow of material therethrough to a second position at one side of the feed tube. The bottom of the feed tube is constructed and arranged to guide the particulate material away from the second valve position and thereby facilitate swinging movement of the swingable member from its first to its second position.

Abstract: A turbocharger having a by-pass system for selectively by-passing exhaust gases from the turbine rotor. The by-pass arrangement includes a housing portion having a by-pass passage which preferably extends from the exhaust inlet to the exhaust outlet. There is a port from the exhaust inlet into the by-pass passage which is selectively controlled by a pivoted valve. The turbocharger with the by-pass arrangement may be utilized with a conventional vehicle exhaust system of the type having a catalytic convertor and if so desired, a major portion of the by-pass gases may also by-pass the catalytic convertor. A control device disposed remote from the turbocharger permits the use of relatively inexpensive control elements.

Abstract: An apparatus for automatically pretreating and paraffining biological specimens in a single vessel for the preparation of specimen blocks to be microtomed into thin slices for microscopical study. A rotary selector valve assembly with a built-in gate valve placed a plurality of reagent vessels, containing various reagents including molten paraffin, in and out of communication with the processing vessel in a prescribed sequence. An air pump coacts with directional control valves to evacuate the processing vessel for drawing the successive reagents into same via the rotary selector valve assembly and to deliver gas under pressure into the vessel for the discharge of the reagents therefrom back into the respective reagent vessels. For automating the apparatus a level sensor is provided to the processing vessel in order to close the gate valve and to set the pump out of operation whenever a reagent is drawn into the processing vessel to a predetermined level.

Abstract: A pivotal valve (10) for use in removal of catalysts (40) from reactors (30) having outer and inner flange plates (110, 120) with a plurality of spacers (130, 132, 134) firmly attached therebetween to form open regions (300, 302) between the spacers and the flange plates to allow free passage of the catalyst material (40) upon closure of the valve (10) to prevent jamming of the valve (10), a gate (140) pivotally attached between the plates (110, 120) for selectively opening and closing the nozzle hole (25) on the reactor nozzle (20) and an arcuate steel plate (190) on the pivotal gate (140) for selectively engaging the inner flange plate (120) next to the nozzle (20) to provide a complete circular seal around the nozzle hole (25) when the circular gate (140) is in the closed position.

Abstract: A furnace valve suitable for use in an electric furnace in the manufacture of mineral fibre comprising a water cooled sleeve provided with a carbonaceous member which is formed with a flow passage extending therethrough and a shutter plate movable across the face of the carbonaceous member to control the effective discharge area of the flow passage.

Abstract: An improved fluid control gate for selective insertion through a wall such as a flexible irrigation tube to a pressurized fluid medium such as water under gravity feed. The fluid control gate having a hollow extender mounted through and to the wall for the fluid to flow therethrough, a mating nut for engaging the area of the wall around the extender to the circumference of the extender in order to form a fluid seal therebetween, a formed passageway through the mating nut, and a triangular shaped pivotal plate for selectively reducing the flow of the fluid through the hollow passageway.

Abstract: An apparatus for opening and closing a downcomer conduit through which crude blast furnace gas is delivered to a dust catcher. A frame is provided which is completely integrated with the upper part of the dust catcher enclosure and which is a prolongation of the walls of the enclosure. The frame provides a fluid-tight compartment which allows for hermetic sealing of the valve from the environment external to the conduit.

Abstract: A valve consisting of a rotating flapper type valve which covers an inlet d outlet opening in a missile base and being held open by the insertion of an inlet fitting of a supply duct into the valve for supplying conditioned air into a missile and the valve having spring means biasing it in the closed direction against the action of the supply duct and latch means which latches the flapper type valve in the closed position when said supply duct has been removed from the air inlet opening of the valve.

Abstract: A bin for pneumatically collecting paper chips comprises a chamber for receiving a stream of air containing paper chips and for collecting the paper chips. The chamber has inlet and exit ports so positioned as to cause a downward current of air to thereby compact the paper chips collected therein and means in the interior of the chamber for separating substantially all of the paper chips from the air stream and for collecting the separated paper chips in a lower portion of the chamber. The bin may also include means for opening a portion of the chamber to allow the collected chips to be removed from the chamber.

Abstract: A canister type vacuum cleaner having mechanism for controlling the negative pressure in the filter bag compartment by bleeding ambient air into the compartment. The mechanism includes a pivotable valve plate for overlaying an aperture in the filter bag compartment and an operator laterally slidable across the front of the cleaner and operatively connected by cam means to the valve. The valve plate is pivoted to selectively block the aperture by an amount determined by the position of the operator and the degree of negative pressure is indicated by the lateral position of the operator.

Abstract: An inlet plenum extends into a control box and opens into the interior of the control box. Conditioned air is introduced into the box through the inlet plenum and flows from the box, to an area being serviced, through an outlet spaced from the plenum opening in the box. A damper is positioned at the plenum opening and it and the plenum at the opening having conforming shapes, i.e., segments of a circle. The damper closes over the discharge opening and, to vary the volume of air flowing through the box, pivots away from the opening about an axis offset from the center of the arc of the damper and the plenum opening. When the damper is closed on the plenum opening, the centers of the arcuate plenum opening and the damper are coincident and, relative to a central plane parallel to air flow through the plenum, are offset from that plane so that the damper is moved away from the plenum opening by air flow.

Abstract: An apparatus for controlling fluid discharge through an outlet of a conduit comprises a clamshell-type gate including first and second opposed gate members pivotally mounted to the exterior of the conduit. The gate members are oppositely rotatable through an arc of approximately 90.degree. between an open position and a closed position just downstream of the outlet. In the closed position, the gate members are closed together along a lip seal at the center of the conduit. A collar seal, mounted to the conduit, is urged against the gate members to block peripheral fluid discharge from the outlet. When the gate is fully or partially open, a portion of the outlet extends downstream of the lip seal to minimize "fan out" of the discharge. In the fully open position, the gate members are open symmetrically beyond the diameter of the outlet for unrestricted fluid discharge through the outlet. The gate members are pivotally attached to trunnion members at each side of the conduit through support arm plates.

Abstract: Gate valve having a closure member mounted on a swinging arm pivotally mounted for movement transversely of the axis of the valve openings. A wedge member carried by the arm drives the closure member in a direction parallel to the axis of the openings when moved longitudinally of the arm. An actuator pivots a cam which bears against the wedge member to swing the arm to a predetermined position in which the closure member is aligned with the openings and thereafter to move the cam to drive the closure member axially and seal one of the openings. Resilient members urge the closure member toward its retracted position and prevent the wedge member from moving forward until the arm reaches the predetermined position.