Abstract: The disclosed invention provides a novel method of perforating a main pipeline while in service, and split joints suited to this method, in order to connect a branch pipeline thereto. According to this method, perforating work is carried out from an opposite side across the main pipeline to where the branch pipeline is connected, as distinct from known methods in which perforating work is carried out on the side of the main pipeline to which a branch pipeline is connected.

Abstract: A fusible thermally responsive device (20) for mounting in a bore (12) provided for it in a wheel (10) to vent an overpressure condition caused by heat generated in an aircraft wheel and brake assembly comprises a rod-shaped length of a thermally activated virgin eutectic alloy (34) exhibiting a tolerance within .+-.1.degree. F. of a specific melt temperature established for the alloy, which rod-shaped eutectic alloy in its virgin solid form has one end (34b) machined to a self-holding taper such as to be press-fit into a mating bore (28,48) having the same self-holding taper (28b,48b) in a cylindrical carrier member (22,42). The carrier is mounted in the wheel bore, either from the inside (22) or the outside (42) of the wheel, and a pair of O-ring type seals (32,52,62) provide a positive sealing relationship between the virgin eutectic (34) and the carrier (22,42) and between the carrier (22,42) and the wheel (10).

Abstract: The impedance of a zone above bulk material in a bin is measured as a probe is reciprocated toward and away from the material in this zone. The direction-change location of the probe which corresponds to the measured impedance reaching a set point value, is detected and utilized to provide the control signal for automatically replenishing the material in the bin.

Abstract: Apparatus for monitoring and controlling the level of fluid in a reservoir. The apparatus utilizes a fluid sensing probe to monitor the level of fluid in a reservoir and can generally be installed in an existing fluid reservoir without requiring structural modification of the reservoir. The apparatus, in determining the level of fluid in a reservoir, compensates for swells and other surface undulations which mask the true fluid level in the reservoir.

Abstract: A reciprocating type gas compressor comprises a hollow frame or housing having spaced apart end walls, a motor-driven crankshaft disposed within the housing and rotatably mounted on bearing assemblies on the end walls and connecting rods connected to crank pins on the crankshaft for driving pistons located within the housing. The crankshaft comprises a drive shaft at one end and a pump shaft the other end, both extending along a common axis of rotation. The crankshaft also comprises a pair of axially spaced apart counterweights located between the two shafts and a crank arm or link located between the counterweights. A crank pin extends from each counterweight to the link along a pin axis which is parallel to and spaced apart from the common axis of rotation. Each bearing assembly has a hollow cylindrical inner race which is friction-fitted on a shaft at an end of the crankshaft and abutts the side of one counterweight.

Abstract: A pressure modulator valve device having adjacent modulator valves, each including a sleeve, a plunger slidably fitted in the sleeve and a cam, the cams being connected to each other by a connecting member, a single supporting member for operatively supporting each of the cams and which is in contact with each sleeve so as to cover a front surface of each modulator valve, and a spring for biasing each sleeve in the direction of the single supporting member.

Abstract: A ballistic tolerant linear actuator incorporates a piston (16, 46, 76) and piston rod (38, 42 or 48, 50 or 90, 92) within a cylindrical housing (58, 60 or 81, 88) connected at each end (14, 22 or 42, 54 or 74, 82) to a source of fluid. A sleeve (18, 62 or 88) of a metal matrix or composite material which will break or puncture but which will not bend or petal on impact is incorporated as part of the barrel within which the piston is translated. The piston rod which extends through at least one end of the cylindrical housing is formed with an external sleeve of the metal matrix or composite material (38, 50 or 92) spaced from an internal load carrying metal rod (42, 48 or 96).

Abstract: The valve has flexible resilient tubes which respectively communicate with the fluid supply conduits and which are pinched by control members to control fluid flow. Each tube has a reduced-diameter center or neck portion intermediate its ends which is engaged by the control member. The internal cross section of the neck portion is circular when relaxed and when pinched closed does not require any greater cross-sectional space than do the tube ends. Single-control and dual-control embodiments are disclosed. In the dual-control embodiment the two tubes are carried in a single cartridge assembly which is removable as a unit.

Abstract: A device for automatically controlling the water level in a basin, such as a bathtub. Air pressure in a tube is used to halt water flow into the basin when a desired water level is reached. Various water levels can be selected by opening pressure relief openings in the tube.

Abstract: A rotating gate valve for access to vacuum chambers, and the like, employs a rotating gate member which is alternatively aligned to cover or to uncover a slot in a concentric valve body, the ends of which are sealed and serve as supports for a shaft. Eccentric lobes on the shaft engage corresponding cam surfaces on a gate member causing it to be urged into high force contact with the body when sealing of the chamber is desired.

Abstract: A check valve is provided having a valve casing, at least one pivotable closure element and at least one movable control element connected with an operating rod which cooperates with said closure element. The operating rod extends transversely to the longitudinal axis of the valve casing and motion-translating coupling means are arranged between the operating rod and the closure element.

Abstract: This invention comprises an assembly (10) for controlling the level (64) of fluid, such as water (14), in a container (11), which invention includes a source of supply (29) for discharging the water (14) into the container (11), a valve (21) connected to the water source (29), a float (23) pivotally connected to the valve (21) for holding said valve (23) open or closed, depending upon the level of fluid in the container (11); the assembly (10) comprising a bracket (31) pivotally mounted within the container (11) and fastened to the valve (21) and float (23) as a unit, and a shaft (57) and screw (49) combination seated in a wall (33) of the container (11), with one end of the screw (49) non-rotatably mounted in the bracket (31), the shaft (57) manually rotatable from external the container (11) which rotation results in longitudinal movement of the screw (49) relative to the shaft (57), thereby pivoting the bracket (31) upwardly or downwardly in the container (11), resulting in varying very slightly--or more a

Abstract: Improved faucet valve bonnet locking arrangement locks the valve control assembly to the valve body and utilizes a bonnet locking ring to lock the valve control assembly to the bonnet and consequently bonnet rotational movement relative to the valve body is prevented. In addition, the bonnet locking ring interengages the valve control assembly and the bonnet in a manner such that locking of the bonnet relative to the valve body may be accomplished regardless of the assembled rotational position of the bonnet relative to the valve body.

Abstract: A ball valve assembly comprising: a body providing a socket and flow ports communicating therewith; and a core unit comprising a core assembly adapted to be releasably inserted into said socket, the core assembly having a through passage arranged to communicate with said flow ports, and a rotatable ball member within the core assembly, said member having a through passage such that rotation moves it into and out of communication with the passage in the core assembly.

Abstract: This buoyant blood stop valve is in the blood line to the patient to stop flow to prevent air embolism when the blood is exhausted from the oxygenator reservoir. The stop valve comprises a downwardly directed hemispherical cup next to the downwardly directed tubular inlet. The top of the cup is open to the inlet to permit free passage of air in and out of the top of the cup. The cup and inlet are formed in the upper valve body, and the lower valve body is secured thereto and faces the upper valve body. The bottom of the lower body has an outlet, and above the outlet is a circular valve seat, such as an O-ring in a recess. Above the O-ring the lower body has a curved bottom, but vanes are formed in the lower body and inwardly directed toward the outlet valve seat at the O-ring. Upper vanes adjacent the inlet are sloped toward the hemispherical cup.

Abstract: A liquid level control device for monitoring the level of water in a steam generating tank between predetermined upper, intermediate, and lower levels, with the tank equipped with a valve for introducing water into the tank and heat energy valve means to generate steam to the water, comprising: a glass gauge tube adapted to be vertically mounted exteriorally of the tank; a top and bottom cover covering the ends of the glass gauge tube, with a bottom cover including an opening for communicating with a liquid in the tank and the top cover including an opening for communicating with steam generated in the tank; upper and lower magnetic float means mounted co-axially within the glass gauge tubes; the upper magnetic float means including means to activate the valve when the water is the region of the predetermined intermediate level so as to introduce water into the tank until the water is in the region of the predetermined upper level, and to deactivate the valve and stop the introduction of water when the water

Abstract: A damper controls fluid flow and includes a frame with an opening through which the fluid is intended to flow when the damper is open, and a closure cap movable between a first position in which it blocks the opening and a second position in which the opening is unblocked. In the second position, the closure cap is rotated with respect to its first position, so as to minimize interference with fluid flow through the opening. A mechanism controls the movement of the closure cap, and includes a first and second bracket fixed with respect to the frame and the closure cap, respectively. An elongate guideway is defined in one bracket and a pin on the other bracket is captive within the elongate guideway.

Abstract: A double seat valve includes a valve housing and two valve closure members movable in the housing co-axially and relative to each other between an open and closed position. A leakage space defined between the closure members by a drain outlet. One of the closure members is a slide piston having an end portion sealingly received in a recess provided in the other closure member. The wall of the recess has an annular groove which permits a seal cleaning flow of liquid between the surfaces of the seal provided on one of the closure members and the annular groove into the leakage space.

Abstract: Disclosed are a method of and a device for repairing a damaged upright spindle which is vertically movable, in a tubular attachment secured to a flange of a valve housing interconnecting two pipe sections, for raising and lowering a slider to block and unblock a flow through these sections. The attachment is removed and the damaged part of the spindle is cut off, preferably just above the housing flange, by a tool temporarily supported on that flange while the slider is left in the housing in one of its two limiting positions. Next, with the aid of a sleeve partly surrounding the remaining spindle stump, a replacement for the cut-off spindle part but of greater length is fitted onto the stump and is rigidly connected therewith. The attachment is then reconnected with the flange and is supplemented by an extension of a height exceeding that of the sleeve, the height of the extension substantially equaling the difference in length between the cut-off spindle part and its replacement.

Abstract: The invention relates to a device in a vacuum transportation system for liquids, preferably a vacuum sewage system, comprising a transportation conduit (12) which is under vacuum and via a normally closed valve (13) and a suction pipe (14) connected to a liquid collecting container (10). The closing movement for the valve (13) is activated by the change in pressure which occurs when air entering after the liquid flows into the system.