Abstract: In an installation for treating workpieces by a glow discharge in a mixture of gases, the gas pressure is detected and valves for the various gases are cyclically and symmetrically opened and closed by amounts relative to the volumetric ratio of the gases.

Abstract: A water feed valve or faucet which is adapted to remove soiling or filth adhering to the surface of its handle portion by a shower or water streams automatically formed whenever the feed valve is used. The feed valve is so arranged that a water passage is formed in a valve operating shaft of the feed valve, while a water sprinkling member is provided at the top portion of the handle so as to cause part of the discharged water to flow out through the top portion of the handle when the feed valve is opened.

Abstract: A flow-control valve exhibits a flow-drooping characteristic such that the liquid supply into an oil pressure mechanism is decreased in response to an increase of the amount of liquid discharge from a pump. The pump outlet passage forms branches into a fluid supply passage communicating with an oil pressure mechanism and a recirculating passage back to an oil tank. A control valve located in the recirculating passage is opened in response to the fluid increase from the pump to recirculate a part of the fluid into the tank. An orifice not receiving large influences of the pressure variation is disposed either at the pump outlet passage or the recirculating passage and a variable orifice valve is disposed in the fluid supply passage. The variable orifice is controlled by the pressure differential existing between the upstream and downstream portions of the orifice at either location.

Abstract: A ball valve assembly includes a ball valve housing formed of a single body having a passage extending therethrough with a first portion of the passage having a smaller diameter than a second portion of the passage. The second portion of the passage has an insert therein with its passage being the same diameter as the first portion of the passage. A ball valve is disposed within the housing to control flow through the passage extending through the ball valve housing. The ball valve has a spherical segment at each end of a substantially cylindrical connecting portion with each spherical segment engaging a removable seat in the passage in the valve housing. The connecting portion has a passage of the same diameter as the first portion of the passage in the valve housing with the connecting portion cut away at each end of the passage so that the periphery of the connecting portion is no greater than the inner periphery of each of the spherical segments.

Abstract: A New Three Stage 15,000 p.s.i. Balanced Valve, controlling fluid flows and pressures equally well in either direction, giving dependable leak proof operation with a very low control force.The first stage acts to gradually cut off the flow as a metering pin enters the orifice, the second stage seat is a standard 45 degree poppet valve closing directly after the metering pin cuts off the flow, the third stage positive shut off is made by teflon under extreme pressure forming a cut off point between the metering pin and the inside walls of the orifice, just below the 45 degree poppet valve.This needed high contact pressure is created by a unique pressure multiplier, a system in which the metering pin causes the self lubricated teflon to be telescoped smoothly without obstruction into a slightly smaller confinement while the valve is being fully closed. A coil compression spring is used to restore the teflon back into the low pressure confinement.

Abstract: An intravenous tubing clamping device is provided for controlling fluid flow through compressible tubing. The device includes an elongated member having a proximal end and a distal end which is adapted to receive the tubing. The body member has a generally V-shaped longitudinally extending bottom wall having an angle of about 60.degree. to 165.degree. defining two supporting surfaces for the tubing. In one embodiment, the bottoms of the side walls of the body member define ledges on opposite sides of the V-shaped bottom wall. In another embodiment, the body member defines two grooves on opposite sides of the V-shaped bottom wall. A roller is mounted on the body member for movement longitudinally of the body member. The roller has a generally V-shaped circumference having an apex angle centrally located on the roller having a value of about 60.degree. to 180.degree.. The roller also has circumferentially extending grooves extending around both opposite sides of the outer periphery of the roller.

Abstract: A well blowout preventer packer that is assembled by means of modularly constructed and defined elements. The modular elements are assembled and interlocked individually without resorting to cementing them together whereby individual elements may be replaced when they deteriorate. The modular packer elements can be molded individually so that the elastomeric materials can be better controlled.

Abstract: A flow regulator assembly for controlling fluid flow in flexible tubes which can be attached at a point intermediate the ends of the tube and which has a regulating member rotatable to a selected position to move into engagement and deflect the tube to decrease fluid passage therein in proportion to the amount of rotation of the regulating member. Means are provided to resist rotation of the regulating member from its selected position and provision is made for an indicator which makes it possible to select the rate of flow visually or through a sense of feel. One embodiment provides for selection of the rate of flow by listening to sounds made during rotation of the regulating member.

Abstract: A bearing block for a ball valve or the like which is held in place by clamping it between the valve body end closures. A pair of slots are disposed through the bearing block intermediate the bearing bore and its opposite, ends, and the dimensions of the bearing block outward of the slots are somewhat greater so that compressive forces are lighter in those areas within the ends projections of the bore. In one embodiment, the slots extend through to the ends of the bearing block and in another embodiment they terminate at both ends in drilled holes.

Abstract: For work vehicles, for example, cold weather can be a problem. Disengaging the vehicle clutch (26) aids starting by reducing engine loads during starting. Where the clutch (26) is hydraulically actuated, it can be disengaged by keeping fluid pressures below required engagement pressure when supplying other elements common to the clutch hydraulic circuit. Apparatus is provided which during starting directs fluid to, for example, pump drive bearings (20) at less than clutch engagement pressure. An input signal to the apparatus from the vehicle operator after engine start-up then builds pressure to activate the clutch (26) while continuing to supply the pump drive bearings (20) for lubrication. Upon a preselected fluid flow to the apparatus, such as at engine shutdown, the apparatus automatically returns to the condition at which available pressure levels are less than required for clutch engagement.

Abstract: A system is disclosed for controlling the flow of fluid from a pair of pumps (15,15') to a steering system (11) and a pair of auxiliary load circuits (13,13'). The steering system includes valving (43) defining a variable flow control orifice (45), and the steering system normally operates with a pressure differential X across the variable orifice, and provides load pressure signals (47,49,49',53,53') representative of demand for fluid by the steering system. Fluid flow from the pumps is controlled by a pair of priority flow control valves (21,21') including a pair of valve members (27,27') each of which is biased by a spring (29,29') toward a position permitting flow to the steering system. The spring (29) exerts a biasing force equivalent to the pressure differential X while the spring (29') exerts a biasing force equivalent to a pressure differential Y, which is less than X.

Abstract: A ball valve is disclosed comprising a single piece body with a ball-shaped, two-part valve member therein operable by a rotatable stem formed separately from the valve member, this stem being so formed that it cannot be blown out from the valve by internal pressure in the valve during servicing.The stem extends from the interior to the exterior of the valve through a stem passage providing, adjacent the chamber which houses the valve member, a first plain bearing supporting a portion of the stem for rotation about the stem axis. The stem has an enlarged portion within the valve chamber which is too large to pass the first plain bearing, the enlarged portion having a shoulder adapted for sealing engagement with a seat formed within the valve body around the stem passage.

Abstract: An improved clamp for regulating the flow of fluid through a length of flexible tubing comprising a clamp body for supporting the tubing, having opposing walls extending from the surface of the clamp body so as to present a passage for the flexible tubing. A platen is mounted between the walls for contacting the tubing. Guide surfaces are arranged in the walls with a roller positioned within the guide surfaces. The platen is movably positioned between the roller and the flexible tubing so as to present a compression surface against the tubing along the path of travel of the roller. The combination of the platen and the roller exerts a compressive force against the tubing and distributes the force over a wide area of the tubing so as to prevent permanent deformation of the tubing. This compressive force constricts the tubing and thereby regulates flow of liquid therethrough.

Abstract: Disclosed is apparatus for dispersing water within a flowing stream of fuel oil, to produce an oil and water emulsion which improves combustion efficiency by as much as 15 percent. The apparatus includes a pressurized supply of water, a differential pressure regulator, a proportioning or tracking valve, and an emulsifying mixer. The differential pressure regulator provides water to the tracking valve at a pressure which is a constant amount above that of the oil just upstream of the mixing point. The tracking valve has two chambers. A first chamber receives oil and contains a float which moves in response to oil flow therethrough; a float extension penetrates from the first chamber into the second chamber which receives the water, and causes movement of a needle shaped element therein, to vary the water flow path area. The operative valve elements are coaligned and configured especially for responsiveness and accuracy in proportioning.

Abstract: A double piping type hydraulic pressure control device in which hydraulic pressure control of a hydraulic pressure channel A is transmitted to another channel B in such a manner that the hydraulic pressure to be exerted on a balance piston for hydraulic pressure control is obtained solely from the hydraulic pressures of the two output chambers while two input hydraulic pressures are arranged to have nothing to do with the control action.

Abstract: An aircraft engine starter including a pneumatic motor driven by pressurized gas upon opening of an upstream control valve. A fusible plug valve automatically closes the control valve and shuts down the pneumatic motor whenever temperature of the lubricating oil of the motor exceeds a preselected level.

Abstract: A plug valve is provided with primary, secondary and tertiary seals. The primary seal includes an apertured sleeve which envelopes a plug portion of a valving member. The secondary and tertiary seals are provided by a delta ring and a lip of a diaphragm respectfully. The diaphragm is formed with a hollow annular groove proximal to the stem portion of the valving member. The delta ring is placed in this hollow annular groove with an interference fit to form a secondary seal between itself and the valving member and to augment the tertiary seal formed between a lip of the diaphragm and the valving member.

Abstract: A blowout preventer is disclosed as including a ram-type seal element which can be compressed and deformed to seal around a variety of pipe sizes. The seal element is molded from a resilient rubber material and includes a generally semicircular section to sealingly engage pipes. A plurality of metallic support elements are embedded in the seal to support the rubber material for deformation essentially only in a radial inward direction to conform to the drill string pipe size, when force is applied to the seal by the ram hydraulic system.

Abstract: A tractor hydraulic power lift mechanism has a known manually adjustable flow control valve for regulating the rate of lowering an implement. However, when the valve is so adjusted that a heavy ground-working implement is lowered to ground level at a rate slow enough not to cause damage, the implement is then very slow to penetrate the ground to the desired working depth. A manually operable overriding mechanism preferably actuated by the main hand lever of the power lift mechanism is therefore provided to enable the valve to be moved temporarily into its fully open position and allowed to return to its adjusted position. The overriding mechanism is operated as the implement reaches ground level and released when it reaches its working depth.

Abstract: A metal diaphragm valve including a multiple ply metal diaphragm structure comprised of a plurality of thin circular metal elements each having a planar annular rim surrounding a dome-shaped interior portion superimposed one on top of another with their annular rims fixed together to seal the hollow interior portion of a valve bonnet. A diaphragm contacting surface including at least two areas of different degrees of curvature, one of which is cruciform in shape, is mounted for axial movement in the valve bonnet. A method of making the metal diaphragm structure and a hermetically sealed valve assembly are also disclosed.