Abstract: A linearly movable irrigation system, according to the present invention, may include a plurality of interconnected power driven irrigation sections supporting a water supply conduit which sections are capable of moving over a land area and depositing a controlled amount of water thereon. At one extremity of the irrigation system may be provided a mobile power and control unit that accepts water from a water supply system and conducts it to the overhead irrigation pipe under sufficient pressure to cause proper distribution of water through sprinkler devices located along the length of the irrigation conduit. A power driven pump may be supported by the power and control unit in order to pressurize or provide boosting pressure for the water received from the water supply. The power and control unit is adapted to move in proximity to an elongated reference which may be straight or curved as desired.

Abstract: A distributor board or panel for compressed air monitoring systems including an integral die-cast distributor housing and a plurality of flow detectors. The housing has a longitudinal opening and surrounding structure to which the flow detectors are mounted for registry with a longitudinally extending common compressed air line through respective air supply lines which extend at right angles from the common compressed air line, and to respective air outlet lines which have cable connections associated therewith. The individual air supply lines and air outlet lines are also formed in the distributor housing. In each air supply line there is mounted an automatic closing stop valve which can be opened by a control pin mounted within the respective flow detector.

Abstract: A device for monitoring and adjusting the temperature of multiple cooling circuits in which a monitoring unit with a float-type flow gauge, a temperature gauge and a throttle valve is associated with each cooling circuit, and several units are assembled in a monitoring bank. A main liquid supply pipe and main liquid outlet pipe support the bank adjustably on the machine for supervision by an operator.

Abstract: An apparatus and method for gaining access to the contents of pressurized vessels and systems and for discharging the contents safely under controlled conditions. The apparatus, comprised essentially of a ball valve and pressure tube assembly having a coaxial conduit in which is mounted for longitudinal movement a rotatable shaft and drill bit, is connected to the pressurized vessel. The rotatable shaft in the preferred embodiment is provided with fluid conducting means so that when communication with the contents of the vessel is made, pressure on both ends of the shaft is equalized. At this point, the ball valve is shut off, the pressure tube assembly, shaft and drill bit are removed, and a hose or other take-off device is connected to the ball valve for safe disposal of the contents of the pressurized vessel.

Abstract: A high volume, fluid pressure relief valve for the top of a vent opening in a fluid storage tank. The valve includes a valve member which is reciprocal to and from a valve seat disposed in alignment with the vent opening. Constant force spring means coact with the valve member for normally retaining the valve member in closed condition, whereby the fluid pressure force required to move the valve member remains substantially constant throughout the travel of the valve member. A large venting capacity is provided in a single compact valve device and the valve is so constructed and arranged that pilferage from the storage tank is prevented. Also the valve may include an arrangement allowing "in-breathing" of the storage tank.

Abstract: There is disclosed a slider fitting and end stop applying machine wherein a combination unit includes an end stop anvil mounted on an arm and a slider jig supported by a support member. The arm and the support member are mounted for pivotal movement about respective axes which are spaced apart laterally from one another. The arm and the support member are operatively interlocked in crossing relation, so that the anvil and the jig move automatically toward and away from each other during the travel between the slider fitting station and the end stop applying station. The jig is provided with means for automatically releasing the slider from the jig when the combination unit reaches the end stop applying station.

Abstract: A fluid flow diverter or reverser comprises a housing having a transverse separator wall dividing it into first and second axially adjacent chambers. The first chamber has a diametrally extending separator wall dividing it into subchambers. Each subchamber has an inlet or outlet, respectively, to which a conduit, that may serve as the feed or return of a process loop circuit or the feed or return of a fluid supply circuit, is connected. The transverse wall has a pair of openings which communicate the respective subchambers with the second chamber. The second chamber has inlet and outlet openings, respectively, which can connect to a fluid supply and return circuit or a process loop circuit. A diverter blade in the second chamber is reversibly rotatable for changing direction of fluid flow between the inlets and outlets and, hence, in the loop circuit.

Abstract: A check valve assembly for use in a flow conductor. A tubular valve body with a central flow passage is mounted in the assembly. A spring urges the body toward closed position in which a rigid sleeve encircles and covers outlet ports in the downstream end of the body. A resilient skirt of rubber extending from the end of the sleeve engages the outer surface of the body to form a seal which prevents reverse fluid flow through the valve. The rigid sleeve isolates the ports from high reverse pressure differentials. Forward flow, or a sufficiently great forward pressure differential, overcomes the spring bias and pushes the downstream end of the tubular body through the bottom of the sleeve and skirt to a position in which the outlet ports are uncovered for normal flowing operation. The spring returns the valve body to closed position when the flow reverses or the forward pressure differential falls below a prescribed value.

Abstract: A subsurface safety valve which is used to control the flow of well fluids through well tubings combines (1) the velocity valve principle of differential pressure and (2) a change in well tubing pressure to produce a closing force for the valve. A valve housing is connected into a well production tubing. A movable valve element is connected to the valve housing. In one position of the valve element flow of fluids through the valve housing is permitted and in another position thereof flow of fluids through the valve housing is prevented. The movable valve element forms with the valve housing a pressure chamber and larger and smaller differential areas. An inwardly protruding surface or flow bean is formed on the valve element. Fluids flowing through the valve housing cause a pressure differential across the flow bean. The flow bean is located between the larger and smaller differential pressure areas, the larger being above and the smaller below the flow bean.

Abstract: A pilot operated fluid pressure relief valve has a main valve operable by opposed piston areas, both normally exposed to inlet pressure whenever that is below the maximum pressure setting of the valve. A pressure responsive pilot valve is exposed to inlet pressure through a restricted path and when open, exhausts fluid from the piston area which holds the main valve closed. The restricted pathway contains two laminar flow orifices one of which is between the inlet and the valve closing piston area and the other is between the valve closing piston area and the outlet through the pilot valve. This arrangement provides good damping of oscillations, while minimizing any changes in effective opening pressure which are otherwise caused by the use of a single laminar flow orifice for damping purposes.

Abstract: A control console having multiple levers rotating on a common axis with each of the levers including an arcuate segment alternately positioned between the spacers on an axial supporting structure aligned within the console housing. A lever handle extends from the arcuate segment of each lever for operating the lever with connecting means from operating a controlled mechanism. Stops and detents are provided by the arcuate segment.

Abstract: A shutoff and exhaust valve for tractor-trailer air brake systems operates to open or close communication between the tractor and trailer service lines in accordance with the pressure in the tractor emergency line and the trailer service line is exhausted to atmosphere through the same valve.

Abstract: A sillcock intended to be mounted in a wall between a warm space and a cold space to provide a water flow passage through the wall comprises a water flow pipe extending between the warm side and the cold side of the wall, a shut-off valve including a valve seat and an associated valve body, a valve control member disposed on the cold side of the wall and a valve control rod disposed within the water flow pipe and connecting the valve control member with the valve. The valve seat of the shut-off valve is located within the water flow pipe at a point along the pipe, which has a lowest temperature exceeding 0.degree.C, when the sillcock is mounted in a wall, and preferably at a point located between the warm side of the wall and the location of the zero isotherm within the wall.

Abstract: A float controlled valve assembly in which the valve is located in spaced relationship to the float with vent means being provided in between and above the level of a liquid receiving tank to provide an anti-siphoning arrangement. The valve is operated by an actuator which is suspended independently of the float but is movable in response thereto. The actuator is supported and guided for both axial and rotational movement which maintains friction between the actuator and the float at a minimum and also minimizes and maintains uniform and minimum wear between the co-acting valve parts.

Abstract: A vacuum valve comprises a housing having an inlet passage and a discharge passage with a valve seat defined within the housing between the inlet and discharge passages. A valve disc is engageable on the seat to close off the communication between the valve inlet passage and the discharge passage. An extension is formed on the top face of the valve disc adjacent each side edge and a lever member has an arm portion at each side which engages through the extension and which is receivable in a groove defined in the housing above the valve seat. A valve drive member is connected to move the valve disc toward and away from its seat and during the closing movement it acts on the lever member centrally to cause the outer arm portions to move outwardly and engage into the receiving groove and to both hold the valve against withdrawal from the valve seat and to aid in its pressing down against the seat in tight sealing engagement therewith.

Abstract: A method of and apparatus for measuring or measuring-out a predetermined volume of a liquid flowing through a conduit or line, comprising a first conduit section containing a measurement path and at one end connected with the outlet conduit of a connection element which interconnects a first inlet conduit and a second inlet conduit. The first conduit section is operatively connected at its other end through the agency of a first valve with the low pressure side of a pump device. The first inlet conduit is continuously connected with a liquid container via a second conduit section which causes a dynamic pressure drop in the flowing liquid. Additionally, the second inlet conduit is continuously connected with a fluid container and the fluid container is connected via a second valve with a compartment, whereas the liquid container is continuously connected with the compartment and the high pressure side of the pump device opens into said compartment.

Abstract: An irrigation machine having traction wheels which run along the top of a pipe having self-closing hydrants spaced apart in the length of the pipe. The machine is guided to follow the course of the pipe. When the machine reaches a hydrant, the machine stops and a vertically-movable riser pipe in the form of a probe and connected to a water gun or other water distribution device automatically descends to open the hydrant valve and thus admit water to the riser pipe and to the water gun. The machine is fitted with a device which shifts the machine longitudinally of the hydrant as the riser pipe is lowered towards the hydrant so that when the probe end of the riser pipe enters the hydrant, the probe end will be in precise vertical alignment with the hydrant. After a predetermined time the riser pipe is raised, the hydrant valve closes and the machine travels along the pipe to the next hydrant.

Abstract: A wheeled power carriage supports an engine driving a pipeline rotatably supported by the carriage. The pipeline is also supported by wheels keyed thereto. The carriage is selectively driven by sprockets mounted rotatably on the pipeline and selectively clutched to the pipeline for rotation therewith.

Abstract: A combination faucet and antisyphon break or air gap for dispensing purified water produced by a membrane type purification unit, has a body having a valve-controlled passage with a spout for dispensing purified water; and a pair of additional vertical passages, one for connection to the brine output of the purification unit and the other for connection to the sewer. The passage connected to the brine output of the purification unit comprises a plastic tube which terminates at its top in a gooseneck, which acts as a channel to direct the brine overflow from this passage past an antisyphon break into the passage connected to the sewer. This passage also comprises a plastic tube.

Abstract: The specification describes a flow regulator for ducts in the case of which the free cross-section of the duct is arranged to be varied by a flap which can be turned against spring force by the flow in the closing direction. The flap is angled adjacent to the shaft and its one limb in the open position is directed substantially parallel to the axis of the duct to the rear and its other limb is directed in the closed position substantially perpendicularly to the duct axis. The spring force is adapted to act from the direction of the wall of the duct on a lever arm attached to the shaft in such a manner that the point of action of the force on rotation of the flap out of the open position into the closed position describes a circular arc, which are at the beginning is more oblique to the direction of the spring force than at the end.