Abstract: An angularly adjustable angularly adjustable electrical conduit fitting includes an articulate metal conduit bendable at least 90 degrees about an arc having an inside radius of curvature not exceeding 12 inches, the conduit in its preferred from being between 19 3/4 and 20 3/4 inches long in a contracted state and being extendable by between 21% and 23% of its contracted length and having at one end a conduit coupling and at its opposite end a conduit or wall opening connector.

Abstract: A conduit coupling device includes a tubular casing with front and rear sections of reduced and enlarged diameters. A pair of relatively diametrically movable arcuate clamp members of channel shape with cross webs and flanges is provided, one of the webs having peripherally extending tongues slidably engaging the other clamp member channel. A radial screw engages a tapped bore in the casing rear section and bears on and is clinched to one of the clamp member webs the other clamp member being fixed to the casing. A pair of the casings may be integrally coaxially formed and house similar clamp assemblies or the casing may terminate in an externally threaded coupling tube projecting coaxially forward from the casing front section.

Abstract: A strain relief electrical cable fitting includes an externally threaded metal tubular body member divided by an inside inclined shoulder and outside flange into an upper compression chamber and a lower coupling section, a gland cap with a central top opening engaging the body member top thread.

Abstract: A strain relief electrical cable fitting includes an externally threaded tubular body member divided by an inside inclined shoulder and outside flange into an upper compression chamber and a lower coupling section, a gland cap with a central top opening engaging the body member top thread. Housed in the compression chamber is an assembly of a rubber packing member and a nylon grip member, the packing member including an upper axially bored cylindrical section and peripherally spaced longitudinal fingers and the grip member including an upper ring encircling the packing fingers and abutting the cylindrical section underface and longitudinal fingers interdigitating the packing fingers and terminating in follower sections engaging the shoulder so that tightening of the cap compresses the packing member by way of a washer to advance and contract the grip fingers to clamp a fitting engaged cable and to contract the packing section bore and effect a hermetic seal of the cable.

Abstract: A coupling sleeve for joining the ends of two conduits. One end is threaded, the other is unthreaded. The conduit 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 pivot joint having a housing member with a pair of opposing coaxially aligned bores in communication with an elongated channel transverse to the bores. A cylindrical member extends across the channel and rotates within the bores. The cylindrical member is longitudinally split to form a pair of clamping sections having a double-D configuration. A passageway is formed through the cylindrical member transverse to its axis and spanning across the split to define opposing concave bearing surfaces for receiving an axially adjustable rod therethrough. A locking clamp extends into the housing for locking the clamp sections together in a desired rotational orientation within the bores, thereby securely clamping the rod in a desired angular orientation as well as in a desired axial extension.

Abstract: A coupling sleeve surrounds two adjacent pipe ends to be coupled together. A continuously-converging, spiral-shaped channel is provided at opposite end regions of the sleeve. A continuously-converging spiral-shaped split constrictable member is located in and angularly movable through each channel. Actuating members in force-transmitting relationship with each trailing end region of a respective constrictable member are operative for angularly moving the latter through each channel, and for radially constricting each constrictable member about and in sealing engagement with the entire periphery of each respective pipe end. In the fully clamped position, each leading end region is overlapped by each respective trailing end region. The spiral-shaped channel is formed in one embodiment by spiral-shaped walls of the sleeve itself, or in another embodiment by a spiral-shaped insert which is received in a circular groove formed by circular-shaped walls of the sleeve.

Abstract: A lamp harp includes a stiff bracket and a resilient bail. The bracket has a base and diametrically opposed bracket arms extending upwardly from the base. Each arm has a hollow interior and includes a channel portion which is formed by a pair of opposed parallel side walls and a base wall. At the point of transition from the channel portion to a U-shaped portion which joins the channel to the base is retaining means in the form of tabs which may be integrally formed with the side walls of the U-shaped portions to enclose the hollow interiors of the arms. Lateral slots are provided in the side walls of the channels immediately above the tabs to form abutment surfaces. The bail includes two downwardly extending free end portions which terminate in end faces and which have spaced above the end faces flats having a substantially rectangular transverse cross-sectional configuration.

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: Each section of a conduit with a constant diameter axial passageway has male pipe threads formed on its outer wall surface at one end. A coupling sleeve is retained captively on the other end of the conduit section by a resilient lock ring means positioned partially in an annular lock ring groove disposed on the outer surface of the conduit section axially inwardly of the end face of the conduit section, i.e. -- in a direction along the conduit section away from this end face, and partially in an annular lock ring groove disposed on the inner surface of the coupling sleeve. The lock ring means spans the two annular lock ring grooves to prevent the coupling sleeve from being pulled axially outwardly off the conduit section.

Abstract: A light walled circular metallic conduit including a first conduit member and a second conduit member. An expanded section is at one end of the first conduit member and an end of said second conduit member is snugly telescoped within said expanded section of said first conduit member. The expanded section has external threads thereon and a nut is provided which is internally threaded. Inside the nut is a split ring. The nut encircles a seal. Upon tightening the nut the split ring bites into the second conduit member. A skirt is affixed to the nut and includes a finger which extends into a gap between the nut and the second conduit member so as to prevent water from leaking into said gap and into the interior of said first and second conduit members.

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.