Abstract: A valve structure is provided which can be opened and closed under operating conditions without any adjustment in conditions existing in the system in which the valve is an element. The valve element can be turned with respect to the seat to provide for proper relation between the valve element and the valve seat to grind one with respect to the other during the operating cycle. The valve also includes a clutch having a radial acting trip overload that prevents the valve seat from being damaged during grinding which is effected by turning the valve through the clutch while moving the valve toward the seat during the closing cycle and produces a controlled grinding operation independent of pressure within the valve.When the valve is operated in the opposite direction, the clutch disengages and the actuator mechanism encounters only the thrust forces during the opening cycle. This allows the valve to be easily opened without overloading the system.

Abstract: This valve actuator is primarily intended for use with rotary cut-off valves. It includes a housing which is attached to the valve body for receiving the valve stem and a longitudinal passage slidably mounting opposed piston elements. The piston elements include spaced shoulders which engage the remote end of a radial arm mounted within the housing and attached to the stem for rotating said stem. The radial arm includes a cam at the remote end having opposed cam faces alternately engaged by the piston elements and configurated to provide a minimum gap between the cam and the piston shoulders during the rotation of the valve between open and closed positions.

Abstract: An actuator mechanism for lift-turn type valves such as tapered plug valves and cam energized plug and slip assemblies includes an actuator housing structure that is adapted to be connected to a valve body. An actuator element that is adapted for interconnection with the operating stem of a valve element includes a cam energized mechanism which is capable of imparting both linear and rotary movement to the valve stem for sequentially unseating the valve element, rotating it 90.degree. to a selected position and moving it linearly in the opposite direction for reseating. During unseating and reseating linear movement, interengaging guide structure prevents undesired rotation of the actuator element and valve stem. An adjustment mechanism is provided to ensure optimum positioning of the actuator element relative to the valve stem. Energy transfer means is provided to ensure adequate transmission of forces during seating and unseating movement.

Abstract: An actuator for a plug valve of the type having a body with a central chamber having diametrically opposed inlet and outlet ports and a plug within the chamber having a transverse passage therethrough and an upstanding stem. The plug has a first, upper, valve-open position with its transverse passage in alignment with the inlet and outlet ports of the chamber, and a second, lower valve-closed position wherein its transverse passage is oriented at 90.degree. to the chamber inlet and outlet ports and seal means on the plug are in sealing engagement with the chamber walls about the inlet and outlet ports. The top of the chamber is closed by a bonnet having a packing gland through which the plug stem extends. The actuator comprises a hollow cylindrical yoke, the lower end of which is affixed to the bonnet with the plug stem extending into the yoke. The upper end of the yoke is provided with a bearing cap.

Abstract: A cam actuated valve (10) is disclosed having a butterfly-type valve member (52) rotatably mounted to a crank member (40) extending into a fluid passageway (23) defined by the valve housing. A rectangular bracket (12) attached to one side of the valve housing has parallel edges (66, 68) forming guide surfaces which are slidably received in parallel grooves (62, 64) molded into an actuator member (14). The outer end of the crank member extends through an elongated slot formed in the actuator member thereby defining a cam-cam follower arrangement which transfers the linear movement of the actuator member to rotation of the crank member. The configuration of the cam slot and its position relative to crank member follower end provides a mechanical advantage enabling a relatively low input force exerted on the actuator member to operate the valve.

Abstract: A fail-safe-open actuator for actuating valves and the like which comprises a pair of opposed cylinders joined to define piston chambers, the axes of which are generally perpendicular to a valve stem. Pistons in the cylinders are connected to the valve stem by toggle links, the pistons being resiliently urged toward the ends of the assembly which corresponds to an open-valve position. To close the valve, a pressurized fluid, such as air, is introduced into the piston chambers and to the pistons at sufficient pressure to counter the resilient means so as to move the pistons away from their rest, valve-open positions, and thus move the valve stem perpendicularly to the axis of the piston chamber. A handwheel is provided to manually close the valve by moving the pistons from their rest positions.A solenoid controlled pneumatic valve may be used to control the supply of pressurized fluid, such as air, to the actuator.

Abstract: A disc-type valve is disclosed which provides a design by which the valve disc can be positively and uniformly lifted laterally off the valve seat so as to prevent abrasion of the sealing surface and/or the valve seat which might otherwise be caused by transverse movement of the valve disc in relation to the valve seat. The opening and closing movement of the valve seat is controlled by and operable in direct relation to a pivotable operating member extending through the valve body.

Abstract: PCT No. PCT/US79/00845 Sec. 371 Date Oct. 15, 1979 Sec. 102(e) Date Oct. 15, 1979 PCT Filed Oct. 15, 1979A fire extinguishing system including a vessel (10) for receipt of a fire extinguishing material and having an outlet (12) closed by a flow control mechanism (14). A linkage (20,30) provides for suitable operation or actuation of the flow control mechanism (14). A double rod ended cylinder 36 is employed for operating the linkage in response to a remotely generated pressure signal or in response to manual actuation by a manual actuator (66) coupled to one of the rod ends (38).

Abstract: A valve adapted for installation at the lower end of a drilling kelly for closing the bore of the kelly when adding a section of drill pipe so that the mud content of the kelly is not discharged onto the derrick floor; the valve also being adapted with minimum change in parts, to be inverted and installed at the upper end of the kelly to serve as a safety valve, providing blow out protection.

Abstract: A power-driven quarter-turn valve actuator includes a reciprocating drive member in the form of a rod mounted perpendicularly to and spaced a preselected distance from a valve stem. A crank arm is coupled to the valve stem so that the axis of the crank arm makes an angle of between approximately 60.degree. and 100.degree. with a line intersecting the stem axis and perpendicular to the rod axis when the valve is shut and makes an angle of between minus 30.degree. and plus 10.degree. with said line when the valve is fully open. A link member connects the outer end of the crank arm to a point on the reciprocating rod. The preselected distance between actuator rod and valve stem, and the lengths of the crank arm and link, are chosen to produce a variable actuator torque output curve that closely matches the operating torque requirements of the valve.

Abstract: A valve actuator has at least one piston in a cylindrical chamber that has a segmental skirt provided with transverse teeth on its chordal face meshing with lengthwise teeth on the hub of a rotor extending diametrically through the chamber with one rotor end exposed and provided with a portion for mating engagement with a valve stem portion when the valve is clamped to the actuator. Air is delivered into the chamber on opposite sides of the piston and the skirt is provided with anti-friction elements. Single and dual piston embodiments are disclosed as well as the use of springs by which the valve is operated in a wanted manner in the event of loss of piston operating pressures.

Abstract: A three-bale load is accumulated on the trailer as bales issue from the rear of the baler, whereupon the accumulated bales may be dumped all at the same location or singly as may be desired. Successive bales issuing from the baler arrive at a central platform from which they are alternately distributed to laterally disposed side platforms in an automated procedure. Once a side platform receives its bale, lockout mechanism prevents the transfer device from presenting the side platform with another bale until such time as the previous bale has been dumped. Once a bale has been dumped from a platform, the transfer device is automatically actuated, if indeed the next bale is ready to be transferred, for loading of the next bale onto the awaiting side platform.

Abstract: A butterfly valve made of a synthetic resin comprising; a valve casing, a valve plate, a valve shaft connected to said valve plate, pivoted turnably to said valve casing and having one end thereof protruding into an axial cylinder formed to protrude from said valve casing, and a rotary moving member engaged with the outer circumference of said valve shaft turnably and slidably in the axial direction, retarding the rotation of an operation handle shaft and transmitting it to said valve shaft.

Abstract: A driving device for opening and closing a valve comprises a cylindrical body, an actuating cylinder, a spindle, a piston member, a transparent plate and a stop means for controlling the rotation of the spindle. Said stop means comprises a ring gear, a spring and a stop bar having a wedge-shaped head, said wedge head having a pair of surfaces forming an included angle which is bisected by the axis of the stop bar such that rotation of the spindle by fluid pressure on the valve is prevented but manual rotation of the spindle in either direction is permitted.

Abstract: A lift-turn valve and actuator mechanism incorporating a valve plug and slip assembly that is movable with both axial and rotatable components of movement during opening and closing. Rotational movement is accomplished during lifting by cooperative relationship between opposed cam grooves defined in valve stem means and a pair of opposed rotatable cam follower elements that are supported by an actuator housing. The actuator housing is a fabricated structure incorporating threaded structure for receiving replaceable cam follower bearing mechanisms. The cam follower elements cooperate with the opposed cam grooves to provide efficient balanced force transfer through the valve actuator mechanism.

Abstract: An actuator is provided for converting linear to rotary motion to manipulate a valve. Preferably, the actuator has a rotor which is rotatable about an axis and is operably associatable with the valve member. A pair of motors, preferably actuated by pressure fluid, each includes a reciprocal push rod assembly. Flexible means are coupled between the push rod assemblies of the motors and spaced apart points on the rotor such that when one of the motors is actuated, the respective one of the push rod assemblies is moved linearly in a direction to transmit torque to the rotor, thus causing the rotor to rotate about its axis in one direction and manipulate the valve member to one of open and closed positions, and when the other of the motors is actuated, the other of the push rod assemblies is moved linearly in an opposing direction to transmit torque to the rotor whereby the rotor is rotated about its axis in an opposite direction to manipulate the valve to the other of open and closed positions.

Abstract: An actuator for actuating valves and the like which comprises a pair of opposed cylinders, the axes of which are generally perpendicular to a valve stem. Pistons in the cylinders are connected to the valve stem by toggle links, the pistons being resiliently urged toward the center of the assembly which corresponds to a closed valve position. To open the valve, a fluid, such as air, is introduced between the pistons, so as to move them away from their rest (valve closed) positions. A handwheel is provided to manually open the valve by moving the pistons from their rest positions.A solenoid controlled pneumatic valve may be used to control the supply of air to the actuator. Either a failure in air pressure or an electrical failure will result in the pistons being urged to the rest positions and also result in closing the connected valve, i.e., the failure mode.

Abstract: A valve actuating device for causing both rotation and linear movement of a valve.

Abstract: A mechanical movement is provided for converting between linear and rotational movement and includes a frame adapted to move only along a linear path of travel. A first rotatable member is adapted to bear against the frame in such a manner that the first rotatable member is free to rotate with respect to the frame. A second rotatable member is adapted to bear against the first rotatable member in such a manner that the second rotatable member is free to rotate with respect to the first rotatable member in an eccentric fashion. A third rotatable member is affixed to the second rotatable member and is adapted to rotate therewith about a fixed axis. Means are provided for minimizing the sideward thrust on the first and second rotatable members so that linear movement of the frame will be converted to rotational movement of the third rotatable member and so that rotational movement of the third rotatable member will be converted to linear movement of the frame.

Abstract: A control valve assembly for vehicle dual hydraulic braking systems is operated by a lever mechanism. The lever mechanism comprises first and second levers which are pivotally connected to each other by a first pivot. One lever acts on a valve mechanism for controlling pressurization of a distributor chamber, and the other lever is pivotally connected to a housing through a second pivot. Each lever acts on a respective one of a pair of brake-applying valves for controlling the supply of pressure fluid in the chamber to an outlet in the housing for connection to a wheel brake.

Abstract: A valve actuator is provided for use in conjunction with a valve having a rotatable member the rotation of which actuates the valve in dependence on the direction of rotation. The valve actuator comprises a housing and a coupling member rotatably carried by the housing and coaxially attached to the valve rotatable member. An elongated threaded shaft is rotatably mounted within the housing so that the axis of the shaft is perpendicular to and spaced from the axis of the coupling member. A nut member threadably engages the threaded shaft and a link is pivotally secured at one end to the nut member and at its other end to a radially extending portion of the coupling member. The link prevents rotation of the nut member on the threaded shaft so that rotation of the shaft axially drives the nut member along the shaft. An axial displacement of the nut member along the shaft in turn rotates the valve rotatable member via the link and the coupling member.

Abstract: A separator for immiscible, emotionless-forming liquids having different specific gravities which comprises a container and a valve arrangement provided in the lower end of the vessel for movement between open and closed conditions whereby through disposition in the container, the heavier liquid may be discharged from the separator, the lighter liquid being retained therein. The valve configuration is such as to greatly facilitate its disassembly in cleaning as well as economic manufacture.

Abstract: Hydraulic control valve with compact radial and axial dimensions for power steering gear in which a hydraulically balanced and centralized valve element is linearly shifted by internal crank elements in response to rotation of an input shaft for controlling actuation of a power cylinder to effect powered left and right steering turns. A valve and seal ring is interposed between two face seals carried by the valve element so that operating fluid is selectively supplied to and exhausted from left and right turn steering lines.

Abstract: This invention is concerned with a stop valve of the type mounted along a fluid carrying pipe, which comprises a closing valve plate hinged about one fixed pin mounted on one internal side of a pipe and operating means for opening and closing the valve plate in the pipe. In accordance with the invention, the operating means consist in at least two articulated links forming an angle lower than 180.degree. therebetween, one of the extremities of said two links being mounted on the valve plate, the other extremity being mounted on the internal side of the pipe opposite to the side where is mounted the hinging pin of the closing valve, and control means extending from said internal side opposite to the side where the hinging pin is mounted to the articulation of the two links, for moving the latter and thus opening or closing the angle formed between the two links.

Abstract: Valve actuator for causing both rotation of a valve member and linear movement of said valve member.

Abstract: A position indicator is used to indicate the opened and closed positions of a rising stem valve. A sleeve is provided which is adapted to be attached to a handwheel and turns with the handwheel. A tubular shell is provided which is adapted to be attached to the valve stem and to be disposed within the sleeve so that it raises, lowers and rotates with the stem. At least one magnet is supported within the sleeve to rotate therewith. First and second reed switches with associated wiring are supported by the shell to be raised and lowered relative to the magnet for closing of the switches at the opened and closed valve positions.

Abstract: A valve actuator is provided for use in conjunction with a valve having a rotatable member wherein rotation of the rotatable member selectively actuates the valve in accordance with the direction of rotation of the rotatable member. The valve may be of the rising-stem valve type in which the rotatable member threadably engages the valve stem to axially shift the valve stem to thereby actuate the valve. The valve actuator comprises a nut adapter secured to the rotatable member in combination with actuating means contained within a housing. The actuator means further comprises a drive tube which lockingly engages the nut adapter by means of inwardly projecting indentations formed axially along the drive tube and which are received in axial grooves formed along the periphery of the nut adapter. In addition, the drive tube is coaxial with the valve stem so as to permit the valve stem to be received axially through the drive tube upon valve actuation.

Abstract: A flow line valve containing an articulated disc, operated by means of a lever actuating mechanism and articulated by the combination of a guide with a rack and pinion gearing system, is disclosed. A valve disc is mounted in a valve body and is operated by rotary motion applied to a crankshaft, through a crank lever and a linking means, which in turn exerts a linear force on the valve disc. The valve disc is initially moved in relation to the seat in a longitudinal direction, directed by a guide means, which is then translated into a pivotation of the disc controlled by a rack and pinion system, such that the valve disc is first longitudinally retracted from the valve seat and then pivoted, clear of the valve seat, 90.degree. to an open position, concurrent with further retraction of the valve seat. Closure is effected by reversing the sequence of articulation.

Abstract: An improved scotch yoke has a means for absorbing sideward thrust. It includes a rod extending in a first direction through a hole in the yoke housing. A yoke arm in the housing is pivotable about an axis and extends in a second direction that intersects the first direction. Projection means, preferably on a member of the rod, extend through a slot in the yoke arm to link the rod with a means for absorbing sideward thrust to minimize bowing and twisting in the yoke arm and the rod. Movement of the rod slides the member in the first direction and pivots the yoke arm about the axis.

Abstract: An actuator for reciprocating stem control valves having a linkage system affording variable force, reversible action, and adaptability to different valve strokes.

Abstract: A valve means comprising a valve lever pivotably supported by a valve guide and having a valve disk at one end thereof, a flexible seal covering the supporting portion of the valve guide and supporting the valve lever, and a cam mechanism, said valve means being arranged to open and close the valve instantaneously by an extremely weak force by operating the valve lever by means of the cam mechanism.

Abstract: An automatic drain valve device alternatively adaptable for use in compressor systems using either electrical or pneumatic controls for cutting out and cutting in the compressor, and being operable to provide a drain operation twice during each cycle of compressor operation, that is, once when the compressor is cut out and again when the compressor is cut in. A manually operable lever on the valve devices provides for manual operation of the drain valve device at will and independently of the pneumatic and electrical controls.

Abstract: A device for opening and closing a rotary valve by remote control comprising a cylinder having a main bore in which a movable unit is slidably mounted in fluid tight manner and which can be displaced in opposite directions by a pressurized fluid supplied by either of two pressurized fluid sources which can be remotely actuated in independent fashion. A sequencing mechanism is mounted in the cylinder for simultaneously applying the pressurized fluid from an activated source to a corresponding end face of the movable unit while connecting the other end face with the atmosphere. The movement of the slidable unit is transmitted to the rotary valve through a rack and pinion arrangement and a linkage composed of cranks and a connecting rod so arranged that when the valve is in either of its end positions it cannot produce movement of the linkage due to alignment of the axis of rotation of the pinion and the connection points of the rod to the cranks.

Abstract: A valve arrangement for aggressive fluids which includes plastic components with a closing member being mounted within the valve body for movement toward and away from a valve seat to control the flow of the fluid. A pivotally mounted two-armed lever is provided with one arm projecting through a movable seal and having at least a portion thereof accommodated within the closing member. The other arm of the lever is selectively acted upon by an actuating element so that the closing member is selectively displaced toward and away from the valve seat.

Abstract: A butterfly valve apparatus comprising a rotating shaft, a valve stem movable by the rotating shaft through a coupling member and a valve plate fixed within a valve housing to the valve stem.

Abstract: A butterfly valve apparatus comprising a rotating shaft, a valve stem movable by the rotating shaft through a coupling member and a valve plate fixed within a valve housing to the valve stem.