Abstract: An oil filtering machine for filtering the hot cooking oil in the cooking vessel of a deep fryer unit when the deep fryer unit is in normal use. The machine includes an oil filtering unit, a motor driven pump and a liquid circulating system in which the pump is connected and which is connected with the deep fryer unit and the oil filter unit. The liquid circulating system includes a pair of suction lines extending from the pump to the deep fryer and oil filtering units and a pair of liquid return lines extending from the pump to the deep fryer and oil filtering units and valve means controlling the flow of oil through the suction lines to the pump and from the pump through the return lines.

Abstract: An assembly is provided for simultaneously operating a plurality of valves. The assembly includes valve stem levers mounted to the valve stems of each of the valves and adapted to rotate with the corresponding valve stems. The valve stem levers are joined to one another by connecting bar assemblies which transmit rotational movement originating in one valve stem lever to the other valve stem levers connected thereto.

Abstract: An arrangement for a rotary cylindrical piston-type slide valve for pneumatic jigging machines includes a housing of symmetrical design including a double rotary piston slide valve portion and a rotary slide valve single portion mounted in a symmetrical arrangement provided for each of the washing compartments.

Abstract: Apparatus for supplying gas under pressure and distributing it between a plurality, n, of outlets (15) comprises a piston (1) slidably mounted in a cylinder (2), with the piston (1) being fixed to a rod (6) which serves to position the piston in the cylinder, and with the cylinder including a base (3) provided with a gas inlet (16) and a side wall (5) having n openings, each of which is connected to a corresponding gas outlet; said piston, when in a base end postion, serving to block communication between the inlet and the outlets; the improvement wherein the openings in the side wall are constituted by grooves (13) which extend over a shorter length than the axial extent of the piston, and whose depth in the thickness of the wall increases with distance from said base, the furthest end of each groove from said base being connected to an associated gas outlet, and each groove constituting together with the piston a convergent-divergent nozzle.

Abstract: Fluid under pressure, such as compressed air, is applied to one end of an elongate, thin, tubular plenum, the opposite end of which exhausts to the atmosphere. The plenum has intermediate its ends a plurality of axially spaced exhaust ports, which are connected to a valve mechanism having a rotary or reciprocable valve stem, which can be adjusted selectively to connect any one of the plenum exhaust ports through a single output port to a pneumatically operated device. The pressure of the air traveling through the plenum drops at a substantially linear rate, so that the pressures at the spaced exhaust ports can be plotted against the respective distances of these ports from the inlet end of the tubular plenum, thereby to provide a curve which can be used for predicting the pressure at any given point along the length of the plenum.

Abstract: This invention relates to a divert valve comprising a pair of disc valves operated by a common actuator wherein the tolerance in the mating between the valve seat and the disc in one disc valve disposed in the first bifurcating pipe is controlled independent of the other disc valve disposed in the second bifurcating pipe branching out from the first bifurcating pipe.

Abstract: A dispensing device for mixing and dispensing multi-component liquid mixtures is described. The dispensing device comprises valve assemblies including a tapered valve plug and a correspondingly tapered valve seat and, downstream from the valve assemblies, respective orifices which provide access to a mixing and dispensing nozzle. The cross-sectional area of the orifices is about 1.7.times.10.sup.-4 to 2.0.times.10.sup.-3 sq. in. and the ratio of the cross-sectional area of the valve opening at any level of operation to the cross-sectional area of its respective downstream orifice is less than about 3.0. The device generally is configured as a dispensing "gun" and provides a capability for controlled variation in the flow rate of the liquid components and mixing of the components at a consistent volume ratio.

Abstract: An isolation steam valve arrangement for use on the exhaust side of a steam urbine for directing exhaust steam therefrom to steam operated auxiliary equipment and for relieving or venting steam to the atmosphere. The valve arrangement includes a casing, or body provided with a single inlet and plural outlets. A main valve between the inlet and one of the outlets is selectively positionable from fully open to fully closed for controlling steam flow through one outlet for operating auxiliary equipment. A normally closed vent valve between the inlet and other outlet is adapted to open upon closure of the main valve to establish open communication between the inlet and other outlet in order to continuously vent to the atmosphere a low volume of steam from upstream of the main valve. A normally closed pressure operable relief valve is adapted to relieve to the atmosphere a high volume of pressurized steam from upstream of the main valve.

Abstract: A three-passage valve comprising (1) a body with a main passage (10) and two secondary passages (12,13), each of the secondary passages being fitted with a respective closure member (2,3) and the valve as a whole being provided with a single, common actuator unit (6) to operate the closure members in such a manner that the valve can occupy any one of three positions: a first position in which the main passage is in communication with a first one of the secondary passages while the other secondary passage is closed; a second, or intermediate, position in which both of the secondary passages are closed; and a third position in which said first passage is closed while the main passage is in communication with said other secondary passage.

Abstract: A valve construction having a housing provided with a chamber and ports leading to the chamber and having an axially movable piston unit disposed in the chamber to interconnect certain of the ports together in relation to the axial position of the piston unit that is caused by a condition responsive device and a spring operatively associated with the piston unit, the piston unit comprising a plurality of pistons disposed in spaced substantially parallel relation and being secured together to be axially moved in unison in the chamber under the influence of the condition responsive device. The spring comprises a single coiled compression spring telescopically receiving the pistons therein, the pistons being of different lengths.

Abstract: A blowout preventer having a mechanical linkage to a valve connected to a pressure relief line in the casing beneath the blowout preventer whereby the valve on the pressure relief line is opened when the blowout preventer is actuated is disclosed. The blowout preventer includes an upright tubular body having an annular packing therein which can be constructed about a drill pipe or other pipe in the well, a head connected to the top of the upright tubular body for containing the annular packing in the body, a piston slidably received in the body and adapted to selectively constrict the packing about the well pipe, a casing pipe connected to the lower end of the body for containing the well pipe, a pressure relief line connected to the casing having a valve therein, and a rod connected to the piston and the valve to open the valve when the piston slides within the tubular body to constrict the packing about the well pipe.

Abstract: A valve for automatically dumping a load of solids entrained within a fluid transport medium in response to flow interruption is disclosed. The automatic dump valve is particularly well-suited for use in combination with a nodule transport riser in deep ocean mining operations. The automatic dump valve system is combined with a tubular conduit defining a longitudinally extending flow passage having a sidewall opening defining a dump port. The automatic dump valve assembly includes a movable dump port cover plate and a hydraulic actuator coupled to the cover plate. The hydraulic actuator is operably responsive to pressure changes within the flow passage relative to the pressure exerted by a surrounding body of water to open and close the dump port.

Abstract: A selectively energizable flow meter system comprising a valve having at least one fluid inlet port for receiving fluid under pressure and a plurality of fluid distribution ports and including a valve element selectively movable to direct liquid to predetermined fluid distribution ports, a metering device, and valve element positioning mechanism connected to the valve element. The valve element positioning mechanism is operable upon energization of the system to establish fluid flow communication between the metering device and at least one valve fluid distribution port and responsive to de-energization of the system to direct pressurized fluid entering the valve fluid inlet port to a valve fluid distribution port bypassing the metering device.

Abstract: A distribution device in the passenger space of a motor vehicle for the air arriving from an inlet opening of a chamber towards two ducts extending from said chamber and reaching air outlet nozzles, usually upper and lower, which comprises a flap rotatably mounted, for the distribution, about an axis at a distance from the air inlet opening. The flap has two branches forming a V with an obtuse apex angle and controlling the respective inlets of the ducts and the edges of which, which are remote for the pivoting axis, are constantly in the respective outlet ducts.

Abstract: A brake valve is disclosed, which is provided with an enlarged chamber, at one end of which is slidably disposed an annular piston. A reaction piston is carried on a valve rod; the reaction piston radially extends so as to cover the annular piston. When the reaction piston moves toward the annular piston, flow of fluid through the valve is restricted and then halted. Mating beveled conical surfaces are provided on the annular piston and the reaction piston to provide a mutual centering and seating action as the reaction piston is moved toward the annular piston. Belleville washer elements are stacked in opposed array on the valve rod for resiliently urging the reaction piston into engagement with the annular piston, and for inhibiting mechanical shocks from being transmitted from the valve rod to the reaction piston, and vice versa. Conical fluid flow stop members regulate the flow of fluid from the valve chamber to downstream brake elements.

Abstract: The disclosed system controls, through novel pressure and valving adjustment mechanisms, the application of dampening fluid to the ink roll or offset plate on the plate cylinder of an offset printing press. The dampening fluid passes through a pressure compensator which adjusts the fluid pressure in response to changes in the speed of the press. The fluid at the adjusted pressure is then directed to a spray bar, where it is discharged through a plurality of nozzles. The fluid is directed to the spray bar by a multiple valve, page control assembly. In the page control assembly fluid from a common manifold is discharged through a plurality of dual control valves to respective nozzles. Closure elements for the respective valves are operated by air pistons. A plurality of needle elements for the respective valves are axially adjusted by a common manual control so that adjusting the manual control adjusts the amount of fluid from one segment of the spray bar, preferably corresponding to a full page.

Abstract: A valve for diverting flow from the center of two concentric tubes to the annulus between the tubes or, operating in the reverse direction, for mixing fluids from concentric tubes into a common tube and for controlling the volume ratio of said flow consists of a toroidal baffle disposed in sliding engagement with the interior of the inner tube downstream of a plurality of ports in the inner tube, a plurality of gates in sliding engagement with the interior of the inner tube attached to the baffle for movement therewith, a servomotor having a bullet-shaped plug on the downstream end thereof, and drive rods connecting the servomotor to the toroidal baffle, the servomotor thereby being adapted to move the baffle into mating engagement with the bullet-shaped plug and simultaneously move the gates away from the ports in the inner tube and to move the baffle away from the bullet-shaped plug and simultaneously move the gates to cover the ports in the inner tube.

Abstract: A control valve for connecting a plurality of fluid demand locations with a common source while assuring a constant distribution regardless of differences in absolute magnitudes and counter pressures. The control valve comprises a main regulating valve for the total flow, coupled to a second valve comprising parallel valves corresponding to the respective demand locations.

Abstract: A pneumatic valve apparatus comprises a cylindrical structure having opposite, outwardly facing faces. A plurality of two-position valves are located in the structure at regular angular intervals at positions about the axis of the cylindrical structure. The valves are subject to mechanical actuation by axial displacement. A spindle co-axial with the axis has a passageway for the flow of air toward each axial end of the spindle. A pair of pawls are carried by the spindle, one on each side of the faces, for limited axial displacement and rotatable with respect to the cylindrical structure about the axis. The pawls are angularly displaced from each other so that when one pawl is aligned with a valve, the other pawl is angularly and axially misaligned. Resilient means (spring 6) urge the pawls axially away from the faces.

Abstract: A vacuum flush water closet having a bowl and rim which are made from steel stampings covered with chemical resistant porcelain. The water closet has a self-contained flushing water and sewage valve discharge control system which is operatively mounted around the bowl and enclosed by an outer shroud made of a molded high impact plastic material. The water closet is shock proof and is mounted on a base plate that may be fixedly secured to a mounting surface, such as a floor or ship's deck. The bowl is mounted on a sewage discharge valve which is spring closed and vacuum opened. Flushing water is supplied through a spray ring mounted around the upper end of the bowl. The flushing water is controlled by a vacuum operated valve. The operation of the flushing water valve and the sewage discharge valve is controlled by a vacuum-gravity timer which is activated by a push button switch mounted at the rear of the bowl rim.

Abstract: A switching connector for pipes and the like includes a support component and a carrier component mounted on the support component for turning about an axis. The carrier component has a passage which extends between two axial ends of the carrier component, and the support component has ports which communicate with a main pipe and with branch pipes, respectively. The passage has connecting ports at respective longitudinally spaced ends thereof which can be brought into and out of registry at least with the branch ports of the support components. A sealing arrangement is provided about the registering ports of the components, including at least one sealing ring about a port of one of the components and a disc-shaped contact member about at least one port of the other component and having a contact surface with which the sealing ring is in sealing contact when the ports communicate with one another.

Abstract: A valve for controlling the fluid flow between two generally coannular ducts. The valve is provided with a pair of back-to-back, mutually facing flow mixers of the daisy variety, each associated with a section of the coannular ducts. Each mixer transists the two coannular duct passages into a plurality of circumferentially separated chute passages communicating alternatively with the inner and outer ducts, the mixers being indexed with respect to each other by half a chute width. A stage of radially extending, pivotable vanes cooperates with the chutes of both mixers and allows both the inner and outer upstream duct flows to be directed to either the inner or outer downstream duct, depending upon the orientation of the vanes. Alternatively, either or both of the fluid streams can be blocked off entirely. Complete flexibility for flow inversion is obtained without turning or indexing the flow through the vanes by more than half a chute width, thereby maintaining high efficiency.

Abstract: A variable ratio bypass turbojet engine comprising a front fan core engine and a forward fan connected thereto by an inverter valve arrangement which comprises a fixed forward duct system and a fixed after duct system selectively shaped and joined by flapper valve mechanism. The flapper valve mechanism may be actuated so that the bypass ratio of the engine can be varied to produce a low bypass ratio engine during cruise operation mode wherein the front fan air is conducted to the core engine fan and the auxiliary inlet air is discharged overboard, or to a high bypass ratio engine for take-off condition mode wherein the front fan air is discharged to atmosphere through a thrust nozzle and the auxiliary inlet air is directed to the core engine fan.