Abstract: A weatherproof terminal or junction box structure for a luminaire adapted for connection by a mast to a building or pole. The structure enables access to the terminal or junction box area for wiring and inspection without disassembly of the mounting of the luminaire to the mast and without the necessity of disassembling the luminaire itself. The mast telescopes within a channel receiver of the luminaire housing for mounting purposes. The mast is slotted at its entry end, the slot being encompassed within an access opening which may be covered by a wire way cover. Removal of the cover exposes the wiring for connection and inspection. With the cover in place, recessed within the receiver, the connection of mast to luminaire produces a weatherproof mounting. A second embodiment omits the need for the cover by normally setting the entry end slot rotated out of registration with the channel opening. Access to the slot may be had by rotating the luminaire about the axis of the channel receiver.

Abstract: A method of repairing an under water pipeline from which a defective or damaged length of pipe has been cut away to form longitudinally spaced-apart, exposed, pipe ends which method includes the steps of:(a) butt-welding to each exposed pipe end a tubular end portion of a hollow, open-ended member having an inner or outer part-spherical mating surface;(b) butt-welding a sleeve to one end of a length of replacement pipe;(c) mounting on the sleeve a tubular end portion of a hollow open-ended member which has a part-spherical mating surface complementary to that of one of the open-ended members butt-welded to the exposed pipe ends and which is adapted to form therewith a ball-and-socket coupling;(d) welding to the other end of the replacement pipe a tubular end portion of a hollow open-ended member which has a part-spherical mating surface complementary to that of the other of the members butt-welded to the exposed pipe ends and which is adapted to form therewith a ball-and-socket coupling;(e) positioning the re

Abstract: Apparatus and method for connecting by welding two axially spaced apart pipes which may be misaligned relative to each other, including butt welding between the pipe ends a pair of coupling members, each coupling member having a tubular portion and an end portion having a face which lies on a plane which intersects the axis of the tubular portion at a nonperpendicular angle and which describes the circle upon the plane. The faces of the end portions may be abutted, rotated, and welded together such that the axes of the tubular portions thereof intersect at various angles. In one embodiment of the invention, the coupling members are mounted in combination with a pair of tubes, each of the tubes has a radially enlarged ring near one end thereof, which end is butt welded to one of the pipe ends.

Abstract: A pipe coupling for joining the ends of two pipes together while permitting a certain angle to exist between the pipe axes, the coupling including a housing member associated with one pipe end, a plug-in member associated with the other pipe end and arranged to be inserted into the housing member to form a sealing connection therewith; two ring elements located within one of the members and together defining an inwardly directed bearing surface having the form of a spherical segment, the bearing surface portions defined by the two elements being axially spaced apart, and the pipe end associated with the one member presenting an outwardly directed bearing surface having the form of a spherical segment conforming to, and fitting closely with, the inwardly directed bearing surface.

Abstract: A coupling sleeve for joining the ends of two conduits. One end is threaded, the other is unthreaded. The coupling sleeve has a female thread which engages the threaded end. The unthreaded end has a terminal portion of reduced external diameter running to an inwardly displaced groove in which a locking ring is disposed. The end of the coupling sleeve which engages the unthreaded conduit end has a recess in which the locking ring is axially slidable and a flange that engages a full diameter external section of the unthreaded end. The recess is long enough to permit the coupling sleeve to be fully received on the unthreaded conduit end when the female thread is disengaged from the threaded end of the conduit.

Abstract: A preassembled pressure relief apparatus adapted to be clamped between a pair of conventional pipe flanges. The apparatus is comprised of a pressure rupturable member supported between a pair of complementary supporting members which include seating surfaces to coact with the annular seating surfaces of the pipe flanges. The supporting members are of a size and shape such that portions thereof extend radially outwardly beyond the boundaries of the annular seating surfaces, of the pipe flanges and means for clamping the supporting members and the pressure rupturable member together in preassembly are attached to such portions of the supporting members.

Abstract: A replacement oil drain tube for interconnecting the head and crankcase on a Porsche automobile engine permits the repair of such engines through a replacement of standard, single piece oil drain tubes with a telescoping oil drain tube assembly, eliminating the requirement that the cylinder head be removed from the engine for such repair.

Abstract: This invention relates to a union for assembling a smooth pipe end to a bush, composed of two half-unions fitted in each other and assembled by a nut fast with a toothed ring. Each half union comprises a jaw which cooperates with a sliding ring, which ring is displaced by means of a nut fast with a toothed gear. Said jaws comprise on their inner periphery truncated surfaces which cooperate with truncated surfaces carried by said sliding rings to disconnect the half-unions by manoeuvring said lock nuts.

Abstract: A coupling for unthreaded pipes of a sprinkler system, which permits the replacement of a small damaged pipe section without bending the pipes already emplaced in the ground. One coupling includes an end cap that can be installed on the end of a first pipe to be joined, and a sleeve which can slide over the second pipe and over the end cap for adhesive mounting thereto. A flexible wedge ring is sandwiched between the sleeve and cap.

Abstract: A core element preferably of plastic material is provided wherein one embodiment of the core element comprises (1) a tubular body member and (2) a tubular coupling member of water-degradable material disposed within one end of the tubular body member and extending axially outwardly therefrom, and (3) a tubular coupling member of water-degradable material disposed within the other end of the tubular body member and also extending axially outwardly therefrom, including also diametrically opposed lug members extending radially outwardly from the tubular coupling member that engage a slot disposed in the wall of the tubular body member whereby the tubular coupling member may be moved into and out from the tubular body member as in a telescoping manner.

Abstract: A pipe fitting of polyethylene is provided wherein the pipe fitting is of integral construction and includes (1) a tubular body member that is fusion bonded at each end to (2) a coupling member, and (3) a movable tubular member that engages one coupling member for axial movement in relation thereto, i.e., telescoping action. The pipe fitting is useful for repairing a damaged pipe in that the one coupling member thereof may be bonded to one exposed end of the damaged pipe while the telescoped tubular member may be moved into engagement with and bonded to the other exposed end of the damaged pipe.

Abstract: A repair or coupling kit for repairing previously installed plastic pipe without need for disturbing the installed condition of the pipe. The kit includes a minimum of two and a maximum of three tubular parts designed for telescopic assembly to the adjacent ends of the broken pipe. One of the parts is a coupling sleeve spanning the break and with its end portions adhesively bondable to the exterior of the parts bridged. All bonded surfaces preferably have an interference telescopic fit when assembled.

Abstract: Each section of a conduit has a male pipe thread formed on its outer wall surface at one end. The other end of each conduit section has a short length of decreased outside diameter extending axially inwardly with a decreased axial passageway through the reduced diameter length. A sloping annulus is formed between the length of decreased outside diameter and the remainder at the conduit section. The other end is flared and has a flat end face substantially perpendicular to the longitudinal axis of the conduit section. A coupling sleeve has an annular flange at its axially inward end which defines a central opening such that the coupling sleeve may slide freely to a limited extent over the length of decreased diameter of the other end of the conduit section. The axially outward end of the coupling sleeve has female machine threads formed thereon. Intermediate the inner surface of the flange and the threaded portion is a sloped shoulder.

Abstract: Each section of an intermediate metal conduit with a constant diameter axial passageway has male pipe threads formed on its outer wall surface at one end. The other end of each conduit section has a short length of decreased outside diameter extending axially inwardly from the flat end face of the section, to form an external annular stop shoulder. A coupling sleeve has a pair of annular flanges which define central openings in mutual axial alignment but of different diameters such that the coupling sleeve may slide freely to a limited extent over the full external diameter of said other end of the conduit section. The coupling sleeve is retained captively on this other end by a resilent constrictable lock ring positioned in an annular lock ring groove disposed axially inwardly of the stop shoulder. When the coupling ring is unstressed, it protrudes, in part, radially outwardly of the groove and is in the path of movement of one of the flanges. The coupling sleeve can be retracted, i.e.

Abstract: A coupling for unthreaded pipes of a sprinkler system, which permits the replacement of a small damaged pipe section without bending the pipes already emplaced in the ground. One coupling includes a short pipe section having an enlaged tubular portion fixed at one end thereof adapted to be fitted over and adhered to a first open end of the pipe in the ground. A slidable sleeve on a second end of the pipe section has an enlarged tubular portion adapted to be fitted over and adhered to a second open end of the pipe in the ground.