Abstract: A coupling to connect plastic pipe ends comprises:(a) a tubular coupling member consisting of plastic, and having a bore at its mid-portion, two counterbores respectively intersecting opposite ends of the member, and two annular step shoulders respectively between the counterbores and said bore,(b) plastic pipe ends inserted into the counterbores to extend proximate the step shoulders, the pipe ends adhesively joined to the counterbores,(c) threaded fasteners extending generally radially through the coupling member to intersect the counterbores, the fasteners having tapered threads and tips that penetrate radially into the pipe ends,(d) the fasteners having heads and there being seal means sealing off between the fasteners and the coupling member and pressurized therebetween.

Abstract: The present invention relates to a method and apparatus for retrieving wear bushings of various diameters and configurations with a single retrieving tool. The apparatus comprises an elongated member having first and second ends and having a generally cylindrical outer peripheral portion arranged parallel with a longitudinal axis of the elongated member. A plurality of adjustable members are adapted for engagement with a wear bushing. The plurality of adjustable members is selectively variable in quantity dependent upon the configuration of the wear bushing. Each of the adjustable members is arranged at the cylindrical outer peripheral portion of the elongated member and extends outwardly an adjustable distance along an extension of a radius of the cylindrical portion. In a preferred embodiment, the adjustable members comprise bolts which are adjustably secured in tapped holes arranged in the cylindrical portion of the elongated member.

Abstract: A pipe coupling is disclosed for connecting two pipelines of different materials together in a high temperature, corrosive environment which, at the same time, prevents deterioration of the pipelines due to galvanic action. The coupling achieves its purpose by using a relatively rigid insulating material to prevent contact between the pipelines. It also achieves high pullout resistance while maintaining minimum outer dimensions to facilitate its use in all types of wells, such as oil, gas, sulfur, etc.

Abstract: A connector fitting, for use in the installation of underground plastic pipes, for threaded engagement into a generally standard fitting conventionally used to install underground metal pipes in circumstances where it is desirable to permit soil to flow into the interior chamber of the pipe as said pipe is being pulled into its underground installed position. A main sleeve portion of the plastic pipe connector is exteriorly screwthreaded along a front end portion for threaded engagement within an annular tube portion of the metal pipe connector, and a pair of relatively short sleeves of predetermined differing diameters are fixed as by welding relative to respective inner and outer rear end surfaces of the main sleeve portion. Rearwardly extended portions of the short sleeves define an annular pocket sized to receive a leading end of the plastic pipe.

Abstract: A fitting for connection to a metal plain end pipe includes a generally cylindrical sleeve section sized to receive and cradle a pipe end portion, an annular seal in the sleeve section for forming a liquid tight connection between the pipe end portion and the fitting, and a screw cutter member extensible into the sleeve section for locking the pipe end portion to the fitting. An end surface of the cutter member has an annular ring of projecting cutting elements having intersecting faces forming metal cutting edges, each cutting element being respectively spaced from another cutting element by transverse recesses for relief of chips cut from the pipe. The cutting edges each have a rake angle configuration relative to the pipe end portion such that a limited cutting penetration is achieved under a predetermined pressure range and travel speed along a pipe end surface.

Abstract: A fitting for connection to a metal plain end pipe includes a generally cylindrical sleeve section sized to receive and cradle a pipe end portion, an annular seal in the sleeve section for forming a fluid-tight connection between the pipe end portion and the fitting and a locking rod extensible into the sleeve section. The locking rod is received into a bore extending substantially tangentially through a wall of the sleeve section and communicating with a sleeve section interior surface over less than a cross-sectional circular periphery of the bore whereupon a segment of the wall of the bore forms an intersection with the interior surface along the length of the bore. The locking rod has a metal cutting tip for tangentially cutting a groove along the intersection in a pipe end portion received in the sleeve section. The locking rod is securely retained in the groove as a key for firmly locking the pipe into the fitting.

Abstract: Modular fire fighting apparatus includes a power module having a turbine driven by fluid, such as water, introduced at a supply inlet to a housing for the module, a drive shaft driven by the turbine and extending from a coupling face of the housing and a fluid outlet disposed at the coupling face of the housing, and various penetrating and extinguishing tool modules each having a housing within which are disposed a fluid receiving inlet and a driven member. The penetrating and extinguishing tool modules are each adapted to be mounted on the power module such that the driven member is releasably engaged with the drive shaft and fluid supplied to the power module housing is delivered to the penetrating and extinguishing tool module housing via the fluid outlet of the power module housing and the fluid receiving inlet of the penetrating and extinguishing tool module housing.

Abstract: A junction for tubular elements comprising tapered and coacting male and female elements. The male element expands more than the female element which expands under conditions of use involving exposure to steam and heat to form a steam-tight joint.

Abstract: A quick connect coupler for fluid transfer is disclosed in which one or both of the mating coupler members is provided with a sleeve which encloses at least a portion of said coupler member adjacent to its coupling end. The sleeve has an inlet for admission of air through its outer wall, a narrow concentric gap between its inner wall and the enclosed coupler member at said coupling end, and a passageway leading from said air inlet to said concentric gap for passage of air over said coupling end. The coupler is adapted for repeated connecting and disconnecting by cooperating releasable coupling means without loss of sterility by virtue of an air shield which is produced over said coupling end by passage of sterile air through the concentric gap.

Abstract: An arrangement of pipes, as in a riser line for use as in the art of shelf drilling, is shown as having a plurality of pipes connected in end-to-end fashion with a joint operatively interconnecting a pair of adjacent pipes and allowing relative pivotal movement of one of such pair of pipes with respect to the next adjacent of such pair of pipes about an axis extending transversely of that pair of pipes, the axis of pivotal movement of each joint being substantially at right angles to the axis of pivotal movement of each adjacent or succeeding spaced joint.

Abstract: A break-away tank tee fitting for connecting a well water storage tank to the supply or service line. The tank tee fitting has a unique disconnect arrangement for connecting the service line to either a bottom or side inlet tank. This arrangement allows the tank to be removed and replaced without cutting any pipes or wires. The tank tee fitting also provides a unique arrangement designed to easily accommodate in less space the pump switch and pressure gauge normally found in systems where the fitting is used.

Abstract: A mechanism for releasably holding down a tubing hanger received within a hanger bowl of a wellhead. Pins mounted for axial sliding movement in horizontal passages of the hanger bowl are forced inwardly by screws which are threaded into passages of the wellhead and against heads formed on the outer ends of the pins. The pins have tapered inner ends which are forced into a groove of the tubing hanger and against a camming surface of the groove in order to press the tubing hanger downwardly within the hanger bowl. Each screw has a blade on its inner end which enters a slot in the head of the corresponding pin to rotate the pin as it is pushed against the camming surface of the groove. Springs urge the pins outwardly to facilitate entry of the blades into the slots, and retainer rings maintain the pins in their passages in the hanger bowl.

Abstract: A set-screw bushing including integral electrical clamp for connection to the end of a threaded pipe, although in some instances the invention is usable with an unthreaded pipe, the bushing of this invention including clamping means for securing an electrical conductor to the bushing. The bushing and the clamping means are preferably cast as an integral unit of metal. The clamping means include a c-shaped member defining an open mouth with a lip to receive various sized electrical conductors. An adjustable lug screw extends into the mouth to secure a conductor to the lip when the screw is tightened.The bushing preferably has a plain or unthreaded inner wall with the bushing being secured over the pipe by means of an adjustable set-screw extending through the bushing wall. A tab extends from the bushing wall to limit the amount of engagement between the bushing and the pipe.

Abstract: A snorkel camera system having an Amici roof prism in the snorkel tube to bend the optical path 90.degree. and to erect and reverse the image transmitted to the prism by the shooting lens, whereby the image of the object as viewed through the eyepiece of a camera body attached to the snorkel tube is erect and non-reversed.

Abstract: The open end inner periphery of a socket is provided with an annular groove, and at a suitable sufficient distance from the annular groove axially toward the innermost side of the socket a seal member stopping projection extends from the inner surface of the socket toward the outer peripheral surface of a spigot. A split lock ring is fitted in the annular groove. The outer peripheral surface of the spigot is provided with a projection which is disposed between the split lock ring and the stop projection and which is axially movable therebetween along with the spigot and adapted to engage with them at the ends of its travel. A seal member is disposed between a seal member supporting surface disposed inwardly of the stop projection and the outer peripheral surface of the spigot. This seal member is urged toward the stop projection by an urging device.

Abstract: A perforating gun barrel for carrying a plurality of explosive charges in a spaced apart relationship comprises a plurality of tubular sections positioned with the ends of adjacent tubular sections end-to-end, with the end of one section overlapping the end of an adjacent section. A coupling member is disposed entirely internally of said tubular sections at each coupling location. A plurality of bolts extend through the overlapping ends of the adjacent tubular sections and are secured in the coupling member to prevent separation of the adjacent tubular sections at the coupling locations. Wiring for detonating the charge carried in each tubular section is routed through a passageway provided in the coupling member.

Abstract: A down spout adaptor assembly includes a down spout adaptor and a storm sewer entry adaptor, the down spout including a tapered asymmetric tube having an arcuate bead projecting outwardly around the lower end thereof, the storm sewer entry adaptor including a cylindrical structure having an arcuate bead around the upper portion thereof, the arcuate bead on the down spout adaptor being insertable into the arcuate bead on the entry adaptor.

Abstract: The invention provides a coupling for releasably securing one end of a rod-like member. To this end a body is dimensioned to receive the rod end and support a locking element. The locking element is displaceable with respect to the body to engage the rod end and is associated with rotatable camming means. Partial rotation of the camming means imparts a camming action to force the locking element into locking engagement with the rod end and further rotation of the camming means withdraws the element to unlock the rod end. The locking partial rotation of the camming means is through an arc of substantially 90.degree. and the unlocking further rotation is through a similar arc in the same or the opposite direction.

Abstract: Coupling for replacement or repairs in pipelines of all categories and of specific utility in vertical submarine pipeline risers so designed for rapidity and simplicity of installation in restricted areas because of its reduced size in addition to its effective sealing characteristics. A coupling that can be readily and simply disconnected and reinstalled without special tools or procedures.

Abstract: A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines. Lock means hold the connector against axial separation to maintain the pin under axial compression and maintain the box under axial tension, including circumferentially spaced locking elements projecting radially from one of said pin and box into a locking recess of the other of said pin and box.

Abstract: A quick operating connector for pipe or the like including a pair of coupling members, each adapted to be connected at one end thereof to one of said pipes. The first coupling member has an annular radially outward extending flange having a forward side and a rearward side with a radially inner portion and a radially outer portion. Both of the portions define the shape of a frustrum having a forwardly facing base, and the slope of the radially inner portion relative to the central axis of first coupling member is greater than that of the radially outer portion. The second coupling member has a housing for receiving the flange in mating engagement therewith. Disposed circumferentially about the housing is a plurality of self-locking cams which are radially inwardly and outwardly movable between a retracted position in which flange is receivable within the housing and an extended position in which the self-locking cams engage the radially inner portion of the flange in self-locking fashion.

Abstract: A device for fixing a fluid carrying hose to the drain of a sink receptacle. Principally applied to attaching a household washing machine waste water escape hose directly to the drain of a typical sink, thus preventing a fluid surge from dislodging the hose from the sink and causing subsequent damage. The device comprises a cuplike frame having a central pipe portion; means for attaching a fluid carrying hose to the central pipe portion; and means for removably attaching the frame to the walls of a sink drain.

Abstract: A swivel connector comprises three hollow members with the first and second members rotatably connected to each other for rotation about a first axis and the second and third members rotatably connected to each other for rotation about a second axis at an angle to the first axis. The first member has adjustable members for connection to the gasoline supply and vapor return passages of a gasoline dispensing nozzle body. The third member has the gasoline supply and vapor return hoses, which are connected to the pump pedestal, connected thereto. A hollow tubular member is supported in the first and third members and extends through the second member to provide the passage for the gasoline supply within the swivel connector while the space between the inner walls of the first, second, and third members and the outer surface of the hollow tubular member provides the vapor return passage within the swivel connector.

Abstract: A roof drilling system which includes a drill bit with a hollow driven shank and coolant holes in the bit flutes connected to the inside of the hollow shank, a single driver unit connectible to the drill bit and also to extension driver elements which interfit with both the bit and the driver, all of the elements being hollow and connected by retainers which secure the parts during the drilling and aid in the withdrawal from the drilled hole.

Abstract: A sleeve having first and second interior surface portions. The first surface portion is threaded and communicates with one open end of the sleeve, and the second surface portion is smooth and communicates with the opposite open end of the sleeve. A bore is formed through the sleeve and the second surface portion thereof, and a set screw is threaded into the bore. The sleeve is first slipped, and then threaded, onto a first conduit, the conduit being first received by the smooth interior surface and then by the threaded interior surface. The end of a second conduit is then disposed adjacent the sleeve, and the sleeve is screwed back off the first conduit onto the second conduit until the first conduit is received by the smooth interior surface and the second conduit by the threaded interior surface. The set screw is threaded against the first conduit.

Abstract: A rotary drill bit having a plurality of journal-mounted rotating cutters and jet passageways through which drilling fluid is discharged between the cutters is provided with removable nozzles for air or other drilling fluid. The nozzles are provided with a peripheral groove and secured in place in said passageways by the divided ends of a bifurcated retaining pin.

Abstract: An adjustable manhole frame assembly for underground conduits, catch basins, or the like, in which telescoped upper and lower frames include screw fasteners engaging in vertically-angulated slots for adjusting the frames axially and angularly to orient the top frame and its cover in relation to an upper surface such as the running surface of a street, or the like.

Abstract: A high reliability universal electrical swivel fabricated of insulative material virtually impervious to moisture or corrosive acid or alkaline vapors and having substantial flexural elasticity provides a conduit for an electrical conductor rotatable and tiltable about orthogonal axes. The swivel is adapted to retain its fixed position notwithstanding severe vibration and shock. Novel design minimizes stress on the internal conductor and its insulation thus minimizing the possibility of internal short circuits. The swivel components are especially adapted for economical mass manufacture and assembly.

Abstract: A tubular device containing a flexible sealing means for temporarily or permanently sealing a severed or broken pipe which contains fluids under extremely high pressure. The tubular device is first attached around and the flexible sealing means is tightened by threads upon two halves of the tubular device and is held in place temporarily by set screws. If it is to form a permanent repair, the device may be held in place by welding the device to the pipe.

Abstract: A rain gutter has a bottom wall prepared for connection of a downspout thereto and comprising a downspout opening in the bottom wall having a continuous downturned lip flange around the edge of the opening derived from material displaced from the area of the opening, and extension means on the lip flange, whereby the extension means and the lip flange can engage within the upper end of a downspout to maintain the downspout in alignment with the opening. The lip flange provides a funnel-like closure for the joint between the gutter bottom wall and the upper end of a downspout coupled to the gutter by means of the extension means.

Abstract: A set screw type conduit fitting is provided with a rubber or plastic boot having a radically inwardly directed circumferential flange engaging a complementary conduit to render the combination water resistant and at least partially airtight.

Abstract: A sealed, vibration resistant, non-separating joint construction connects the plug end of one pipe to the socket end of another pipe. A split lock ring, recessed in an internal groove in the the plug end before insertion of the plug into the socket, is then contracted and extended from the groove into engagement with the outer surface of the plug by set screws on the socket spaced circumferentially around the groove. The contracted lock ring centers the plug in the socket and axially overlaps a radially projecting shoulder or step surface on the plug to prevent axial separation. A sealing member is pressed axially into the annular space between the inner surface of the socket, the outer surface of the plug, and the outer lateral surface of a back-up ring covering the outer lateral surface of the lock ring.

Abstract: The machine dispenses a ready-made milk shake. A freezing chamber has a dispensing valve having porting and a valve element so arranged that flow of the semi-frozen comestible and the flavoring material occurs simultaneously. A beater mixes the two during dispensing. A conduit for the flavoring material has a unique coupling to the valve block and a quick-release coupling intermediate its ends. Upon release of the latter, a manually operable sampling valve may be connected to the conduit to selectively draw a sample of the flavoring. A pump is provided for sucking in a liquid comestible and gas in a preselected proportion and delivering them to the bottom of the freezing chamber. A vent is located in the valve block to vent air from the freezing chamber upon start-up of the machine. The vent has an inlet located at a level so that the liquid and gas volumes in the chamber are about equal to the respective proportions pumped.

Abstract: A sealing means for attaching a conventional garden hose to a 55 gallon drum, or similar container, having a plurality of nestingly interrelated parts to ensure easy and rapid sealing connection of the hose to the drum. A flared sleeve is positioned through an aperture in a wall of the drum, annular means are provided on both sides of the drum wall adjacent the aperture, and a plurality of Allen screws secure the various parts in sealing relationship. Conventional garden hose clamp means are used to clamp a garden hose to the exteriorly protruding portions of the sealing means.