Abstract: A spinal fixation system for use in securing a spinal rod to a vertebra using a lockable bone screw connector. The connector is configured to be movably connected to the head of a bone screw, and a spinal rod can then be used to physically connect a first vertebra to a second vertebra. The spinal fixation system includes a tool grasping the connector by a locking and/or unlocking instrument that can allow the connector to lock to the bone screw by moving a collet, while the connector can still move along the spinal rod until locked into place by a set screw. The connector can be selectively unlocked from the bone screw for adjustment or removal.

Abstract: A storage device attachable to a metal surface on an appliance such as a washing machine or clothes dryer, the storage device comprising an elongated support rod with a top end and a bottom end, the top end transitioning into a top arm, the top arm being perpendicular to the support rod; and at least one magnet assembly attached to the support rod, with the magnet assembly comprising at least one magnet and engages the support rod by magnetic attraction.

Abstract: A single-piece construction coupler for securing reinforcing bars in a parallel relationship includes a sleeve having a center portion, a first end portion extending from one end of the center portion, a second end portion extending from the opposing end of the center portion, and a channel. The center portion includes opposing sidewalls connected by an upper wall, and each of the end portions comprise opposing sidewalls connected by lower walls. Securing tabs extend into the channel from the bottom of the upper wall. Ridges extend into the channel from each of the lower walls and the upper wall. The center portion and the end portions each include fillets connecting the sidewalls and the ridges to upper and lower walls to form rounded surfaces for receiving the reinforcing bars. The sleeve also includes grip protrusions on its outer surfaces.

Abstract: A down rod installation structure for a ceiling fan has a coupling seat, a down rod, and an elastic member. The down rod is threadedly connected to the coupling seat. The elastic member has a fixed end that is fixed to the coupling seat. The elastic member further has an abutment portion to be engaged in a perforation of the coupling seat and an aperture of the down rod, so that the down rod installation structure invention has the advantages of quick installation and increasing the stability of the ceiling fan.

Abstract: A rear wall/panel connector includes a stud, which has a receiving groove and two walls projecting vertically from the stud on both sides of the receiving groove. The two walls each have an opening configured for screwing in a screw. One of the two walls forms an arm of a rocker which is mounted on the stud wherein it is pivotable between a starting position and an end position about an axis which is parallel or almost parallel to the longitudinal direction of the receiving groove. The inside of the second wall is positioned obliquely outwards with respect to the longitudinal center plane of the receiving groove in the starting position and extends parallel to the longitudinal center plane in the end position. The other rocker arm projects outwards over the stud, at least in the end position.

Abstract: A positioning clamp of the present invention includes a tightening body and a fastening assembly. The tightening body includes an insertion hole. Two ends of the tightening body are spacedly arranged. The fastening assembly is disposed on the tightening body and is movable between a fastening position and a release position.

Abstract: An anti-theft tile system includes a first tile having a female interlock mechanism, a second tile having a male interlock mechanism; and an anti-theft apparatus. The female interlock mechanism engages with the male interlock mechanism to form a point of connection to temporarily secure the first tile to the second tile. The anti-theft apparatus engages with the male and female interlock mechanisms at the point of connection to prevent separation of the first and second tiles.

Abstract: Various embodiments of a non-metal retractor device for retracting an incision and retaining a shunt are described herein.

Abstract: A pet chew dispensing device simultaneously secures and dispenses a pet chew. In some examples, the device may comprise a body of chew resistant material and a window formed through the body and adapted to receive the pet chew therein. When disposed inside the window, the pet chew remains partially exposed while the pet chew is simultaneously protected by the body of chew resistant material. The device adaptively pressures the pet chew, such that pet chews which change size over time (or having a range of different initial sizes) may nonetheless remain secured.

Abstract: A pet chew dispensing device simultaneously secures and dispenses a pet chew. In some examples, the device may comprise a body of chew resistant material and a window formed through the body and adapted to receive the pet chew therein. When disposed inside the window, the pet chew remains partially exposed while the pet chew is simultaneously protected by the body of chew resistant material. The device adaptively pressures the pet chew, such that pet chews which change size over time (or having a range of different initial sizes) may nonetheless remain secured.

Abstract: A handlebar structure of bicycle suited for being assembled to a stem of a bicycle is provided. The handlebar structure includes a body and a reinforcement member. The body has a first segment fixed to the stem, a second segment, and a third segment held by a rider, wherein the second segment is connected between the first and the third segments. One portion of the reinforcement member is fixed to the stem, and another portion of the reinforcement member is disposed on the second segment. A two-dimensional Cartesian system x-y based on an orthogonal cross-section of the second segment is constructed, and a scope of the second segment being covered by the reinforcement member contains at least a second quadrant of the two-dimensional Cartesian system x-y, wherein the bicycle moves in a positive x-axis direction of the two-dimensional Cartesian system x-y.

Abstract: Various embodiments of a modular food shield system are disclosed and described within the context of exemplary food shield configurations. Certain embodiments may include cut-to-length support posts. Further, certain embodiments may include versatile brackets that can be positioned, and repositioned, along the length of support post without requiring that the support post be slotted, tapped, drilled or otherwise customized to secure the bracket in position. Brackets used in certain embodiments may further be configured to make use of one or more “double duty” set screws that can simultaneously secure the bracket to a support post while providing a structure for mating with one or more ancillary components in the food shield system such as, but not limited to, an internally threaded barrel spacer, a cut-to-length support post, a main viewing panel or side panel, a finishing cap component, a viewing panel adjustment mechanism, etc.

Abstract: Provided are a set screw, a fixing structure, a fixing method and a sealing structure that can reduce an exposed amount of a set screw and prevent the set screw from coming off a female thread. A fixing structure for fixing a first member 20 in which a female thread 21 is formed and a second member 30 which is provided to be slidable with respect to the first member 20, and in which a through-hole 31 is formed that has a diameter smaller than an inner diameter of the female thread 21, wherein the second member 30 is positioned with respect to the first member 20 in a state in which center axes of the female thread 21 and the through-hole 31 coincide with each other, the set screw 10 is engaged in the female thread 21, and the small diameter portion 13 is inserted into the through-hole 31, whereby the first member 20 and the second member 30 are fixed to each other.

Abstract: A semi-left-hand-thread-removal screw including a screw end head and a bolt, wherein a sink hole is provided on the screw end head, a lower portion of the sink hole is an inscribed polygon structure or an I-shaped structure, a thread which is opposite to the bolt is provided on an upper portion of the sink hole, the inscribed polygon structure is an inscribed hexagon. A screw according to aspects of the disclosure may be screwed in with a common inscribed hexagon screwdriver and an inscribed hexagon structure thereof which are embedded into each other; the screw can be unscrewed with a left-hand-thread screwdriver which is matched with a left-hand-thread structure thereof and screwed in the left-hand-thread structure thereof, after the left-hand-thread screwdriver is screwed in tightly, the screwdriver is continuously co-rotated and then the screw may be unscrewed.

Abstract: A valve having a valve closure member in a valve housing is provided. The valve closure member has a shaft received within an aperture of the closure member and extending out of the housing. One or more locking apertures are formed between an inner surface of the aperture of the valve closure member and an outer surface of the shaft, the locking apertures being angled outward from an axis of the shaft and toward the interior end of the shaft. One or more locking members are inserted into and engage each of the locking apertures, the locking members securing the position of the shaft relative to the valve closure member such that rotation of the shaft rotates the valve closure member between an open position and a closed position and such that internal pressure from within the valve housing increases the engagement between the locking members and the locking apertures.

Abstract: The present application discloses an articulating support arm with improved friction joint designs that are facilitated by the use of a non-annular bushing. In particular, the bushing is designed to interact with another portion of the friction joint to prevent rotational movement of the bushing, thereby minimizing the risk of joint malfunction. A bushing that interacts with a larger percentage of the width of a friction cylinder as compared to prior art devices, thereby improving the performance of the joint, is also disclosed. The improved friction joint according to the present invention may comprise an arm joint and/or tilter joint.

Abstract: The various embodiments disclosed herein relate to an adaptable hub motor having two or more adaptor sleeves that allow for the hub motor to be attached to or incorporated into various different types of pallet jacks. Other implementations relate to a kit having a hub motor and two or more adaptor sleeves for such use.

Abstract: Vertical elongate support (2) for supporting a parked vehicle trailer (1), consisting of a top prop tube (21), an inner prop member (22) which can telescopically slide into the prop tube (21), and a threaded spindle (3) for moving the inner prop member (22) in relation to the prop tube (21), whereby the threaded spindle (3) meshes with a threaded bearing (31) that is secured to the upper end of the inner prop member (22). The upper end of the threaded spindle (3) is connected to a crown wheel (32), the upward-facing surface of which is part of a thrust bearing (33) or is designed to accommodate a thrust bearing (33). The thrust bearing (33) supports the vehicle trailer (1), either directly or via a cover (23) that is connected to the prop tube (21).

Abstract: The present application discloses an articulating support arm with improved friction joint designs that are facilitated by the use of a non-annular bushing. In particular, the bushing is designed to interact with another portion of the friction joint to prevent rotational movement of the bushing, thereby minimizing the risk of joint malfunction. A bushing that interacts with a larger percentage of the width of a friction cylinder as compared to prior art devices, thereby improving the performance of the joint, is also disclosed. The improved friction joint according to the present invention may comprise an arm joint and/or tilter joint.

Abstract: A polyaxial bone anchoring device includes a receiving part to receive a rod for coupling the rod to a bone anchoring element, the receiving part having a top end and a bottom end, a first passage at the bottom end with a first longitudinal axis, and a second passage at the top end with a second longitudinal axis that intersects the first longitudinal axis, and a compression element, wherein at least one of the receiving part or the compression element has a seat with an opening facing the bottom end, and wherein the compression element is movable relative to the receiving part along the first longitudinal axis between a first position wherein the seat is expandable and configured for insertion of a head of a bone anchoring element and pivoting of the head, and a second position wherein the seat is compressed to lock an inserted head therein.

Abstract: A pole securement sleeve is disclosed herein. The pole securement sleeve includes a tubular housing member having a sidewall defining an internal passageway configured to receive a pole therein; a clamping member, a portion of the clamping member disposed in the internal passageway of the tubular housing member, the clamping member configured to apply a compressive force about a portion of an outer periphery of the pole; and a clamping member adjustment means operatively coupled to the clamping member, the clamping member adjustment means together with the clamping member circumscribing an area configured to be intersected by the pole. When a moment or torque is applied to the clamping member adjustment means, a size of the area circumscribed by the clamping member adjustment means and the clamping member is adjusted. A pole securement system and an umbrella base assembly, each including the pole securement sleeve, are also disclosed herein.

Abstract: A bearing assembly for rotatably supporting a shaft member. The bearing assembly has an inner ring having an inner surface sized to receive the shaft member therein. A first fastener threadedly engages a first fastener aperture formed in the inner ring such that a distal end of the first fastener engages the shaft member to selectively retain the inner ring to the shaft member for rotation therewith. A first groove extends along the inner surface of the inner ring and is aligned with the first fastener aperture formed in the inner ring. The first groove is sized to permit clearance between a burr or other obstruction formed on an exterior surface of the shaft member.

Abstract: A connector assembly to fasten two members including an elongate fastener with a transverse aperture where the transverse aperture has a countersunk surface and a screw threaded nipple positionable in the transverse aperture so that when the nipple is placed into the transverse aperture it moves down the countersunk surface and forces the fastener to move and bring the two fastened members closer together. The connector assembly can also include a housing to assist with the positioning of the nipple. The connector assembly has relatively few parts and provides a tight and aesthetically pleasing connection finish.

Abstract: A non-rotation lock screw for a wellhead assembly is provided that includes a rotating portion and a non-rotating portion. The non-rotating portion includes a distal end configured to engage a component of the wellhead assembly, and may include one or more seals. The rotating portion may be rotating into a component of wellhead assembly such that the non-rotating portion translates in a radial direction. The rotating portion and non-rotating portion may be coupled together via a bearing to enable free rotation of the rotating portion. Systems and methods of operation that include the non-rotation lock screw are also provided.

Abstract: A vehicle body frame includes an upper frame, lower frame and a fastening member. The fastening member includes first and second bolts. The first bolt is provided to obliquely cross an axial line of a lower frame end connected to an upper frame end and to fasten the lower frame end to the upper frame end. The second bolt is provided to orthogonally cross the axial line of the lower frame end and fasten the lower frame end to the upper frame end.

Abstract: A connection for transmitting rotating torque has a first component having a shaft with male spline teeth on an outer peripheral surface of the shaft. The male spline teeth extend to an inner end, and there is a blocking portion of the shaft extending in an inner direction from the inner end of the male spline teeth. A second component has a hollow portion with female spline teeth on an inner periphery of a bore. The female spline teeth extend to an outer end. Bolt holes are formed in both the hollow portion and the shaft. The bolt hole in the shaft is formed in a portion of the shaft receiving the male spline teeth. A bolt extends through the bolt holes, and the shaft is secured within the hollow portion. A distance from an inner end of the blocking portion to the inner end of the male spline teeth is greater than a distance between an outer surface on the bolt to the outer end of the female spline teeth on the hollow portion.

Abstract: Metal profile (230,280) as well as with the metal profile cooperating fastening device (800,830,860), wherein the two-dimensional cross-section of the metal profile, perpendicularly to the length of the profile, includes a screw pocket (233). The screw pocket includes a hole (234), arranged to accommodate a screw which is inserted perpendicularly to the cross-section, as well as an opening (235) out from the hole, which opening is narrower than the cross-sectional dimension of the hole perpendicularly to the main direction of extension (M) of the opening, and in that the screw pocket is arranged to accommodate, and therefore to engage with, the fastening device, which fastening device can be inserted into the screw pocket perpendicularly to the cross-section and thereafter be slid in the screw pocket along the metal profile.

Abstract: A pinless device for orienting a motorcycle stabilizer wiper, such device having a platform adapted for stable attachment to a motorcycle; projections extending, preferably upward, from the platform in order to create a channel; an arm having a first end adapted for attachment to a shaft from a wiper of a motorcycle stabilizer and also having a second end of such dimensions that the second end can fit in the channel between the projections; and a means, such as a set screw, for releasably and securely fastening the second end of the arm in the channel between the projections.

Abstract: A modular shaft comprising at least two tubular segments, which can be connected to each other along the same axis of the shaft. The first segment comprises, at one end, a first connecting portion forming a tapered shank, whilst a second segment comprises, at one end, a second connecting portion forming a tapered receiving surface set up for receiving the tapered shank. The shaft also comprises at least one locking screw located at the connecting portions and acting on the connecting portions to stably lock the segments together. In particular, the locking screw is positioned and operates along a screwing axis incident on the axis of the shaft and with said axis of the shaft forming an acute fixing angle.

Abstract: The mounting structure provided with pluralities of guide ribs having a fixed part and a moving part at both sides of a mounting region of an optical disk unit in an electronic apparatus, the fixed part projects out from a bottom surface of the mounting region along a direction of insertion of the optical disk unit into the mounting region and the moving part which swingably extends from the downstream side of the fixed part, the vicinity of a front end part of the moving part of at least one of the plurality of guide ribs which are provided at one side of the mounting region being provided with a projection which engages with a screw hole which is provided in advance in the optical disk unit, so that the optical disk unit is locked by the projection when the optical disk unit is completely housed in the mounting region.

Abstract: A sway brace attachment for firmly connecting to a beam and other flanged structures, and a method for manufacturing the sway brace attachment. The sway brace attachment includes a main body and an insert that is captured within the main body by a pair of set screws which also engage the flange. Preferably, a third set screw is supported by the main body and engages the opposite side of the flange from the pair of set screws. The main body can be generally rectangular in shape, with a top wall, a pair of side walls extending from the top wall and a pair of bottom walls, which extend inwardly from respective side walls in an overlapping relationship. The sway brace attachment can be used for bracing pipes and other loads, suspended below ceilings and floors, against sway and seismic disturbances.

Abstract: A cam lock clamp comprises a stud having a substantially cylindrical body with a first end including a head area and a second end arranged to support one or more disc springs concentrically about the stud. A socket is arranged to mechanically couple concentrically around the stud with the head area of the stud being exposed above an uppermost portion of the socket. The socket is configured to be firmly attached to a consumable material. A camshaft has a substantially cylindrical body and is configured to mount within a bore of a backing plate. The camshaft further comprises an eccentric cutout area located in a central portion of the camshaft body. The camshaft is configured to engage and lock the head area of the stud when the consumable material and the backing plate are proximate to one another.

Abstract: A connector comprising a container-like fastener holder (4) of finite depth with a front (6) and a rear plate and side walls (8) wherein the rear wall and substantially the whole depth of the holder can be cast into a concrete structure to form a space within the concrete structure, fastening means (12) which can assume a range of positions within the holder (4) and a move able connection part (16) or device which can be fastened to the front plate (6) by the fastening means (12).

Abstract: A light steel keel connecting structure, comprising at least two light steel keels, each of which has a connecting surface connecting with the other light steel keel, and connecting pieces for connecting the light steel keels, characterized in that concaves are provided on each of the connecting surfaces respectively which are depressed toward inside of the light steel keels, and the concaves of two connecting surfaces which are connected vertically are disposed by way of embedding, and at least two connecting holes are provided at corresponding positions of two concaves that are embedded, respectively, and the connecting pieces are provided within the connecting holes in a state of connection. The terminals of the connecting pieces at one end where depression sides of the concaves are located do not go beyond outer edges of the openings of the concaves on the same side as the terminals of the connecting pieces.

Abstract: Cabinets adapted for non-level garage floors and out-of-plumb garage walls with leveling controls operated from inside each cabinet. The cabinets have in common that they are attachable to a garage wall and each has at least one adjustment panel forming a part of the back of the cabinet. Each adjustment panel has a hand screw for extending behind the cabinet to engage the wall to provide back-to-front leveling and to prevent installation of fasteners, such as screws, from pulling the cabinet closer to the wall during installation. Each adjustment panel also has horizontal slots in a staggered arrangement in two horizontal rows for receiving fasteners. Floor-standing cabinets have feet that are adjustable from inside the cabinet. Wall-hanging cabinets have a top bracket that provides side-to-side leveling form inside. Floor-standing cabinets are modular and stackable, using an included adapter and door-handle coupler to enable stacked cabinet doors to open as one.

Abstract: A latching device for insertion into a tube provides two large flat buttons one on each side to lock the tube relative to an outer tube or to two parallel plates. A tubular housing with open ends slides into the tube between the side walls of the tube with the ends of the housing substantially butting inside surfaces of the side walls. The buttons are mounted on respective slide members mounted in the housing spring biased apart so that the buttons can be depressed. One or two set screws acting as stop members can be inserted after the housing is moved to the required location in the tube to prevent depression of the buttons to a position inward of the inner surface of the tube so that the housing is held in place.

Abstract: An expandable clamp having a first jaw and a second jaw each having a rear end pivotally linking together, and an elastic member urging the first and the second jaws in a closing position in which the first and the second jaws touch each other. The fist jaw further has a first shoulder inclining inward, on which two first jaw necks are formed, leaving a space therebetween. A first jaw head being formed on each first jaw neck extending outward. The second jaw has a second shoulder inclining inward, on which one second jaw neck is formed. A second jaw head is formed on the second jaw neck extending outward. In the closing position, the first jaw necks and jaw heads are interlacing with respect to the second jaw neck and jaw head.

Abstract: A pivoting ball mount provides four essentially equal and (generally) evenly spaced constraints on the ball, creating a ball and socket joint in which the “socket” is composed of four small constraining pads of equal size and equally spaced around the surface of the ball or sphere. If a sphere is constrained by four equidistant points, each point will exert the same amount of force on the sphere. If additional pressure is applied to one point, the pressure exerted by the other points will rise to match this increased pressure. The effect of constraining a smooth ball by four equidistant points is to create the equivalent of a ball and socket joint in which the force required to rotate the ball at a particular rate is about the same in any direction. The ball is constrained by four equidistant points such that the relative movement between the ball and housing is smooth and predictable in any direction.

Abstract: The interchangeable-core adjuster assembly for optical mounts comprises a carrier bushing and an internally-threaded core bushing that fits snuggly inside the carrier bushing. The carrier bushing is fixedly fitted into the hole the stage plate of the optical mount, and the core bushing slides inside it. The core bushing is irrotatably locked into position within the carrier bushing by conjugate key-keyway structures on carrier and core bushings. While the carrier bushing remains in the stage plate of the optical mount, the core bushing can be removed and replaced with another core bushing having a different pitch. In this way, the same mount may be used with either fine adjuster screw or ultra-fine adjuster screws by simply interchanging core bushings having the corresponding pitches.

Abstract: An electrode assembly for a plasma reaction chamber used in semiconductor substrate processing. The assembly includes an upper showerhead electrode which is mechanically attached to a backing plate by a series of spaced apart cam locks. A guard ring surrounds the backing plate and is movable to positions at which openings in the guard ring align with openings in the backing plate so that the cam locks can be rotated with a tool to release locking pins extending from the upper face of the electrode.

Abstract: A channeled track connector having a base and a slider. The slider slides into an key opening in the base. The base includes a first foot for engaging the channeled track. The slider includes a second foot for engaging the channeled track. Each piece standing alone is not engagable to the channeled track. However, when slid together, the base and slider as a whole stands together as one-piece, remains fixed to the channeled track, and serves as a mount for a predefined object.

Abstract: An assembly for a bolt catch on a firearm having a bolt that slides between a latched position and an unlatched position, the bolt held in the latched position by a bolt catch mechanism that includes a catch-release actuator pivotally mounted on the rifle to provide for latching and unlatching of the bolt by a user, the assembly including a lever having an L-shaped body that comprises a first leg and a second leg that is formed at substantially a right angle to the first leg, the first leg having a free end on which is formed a mounting member; and a clamp member structured to attach to the mounting member on the lever to enable clamping of the lever to the catch-release actuator in a manner that does not require disassembly of the firearm or disassembly or removal of the catch-release actuator from the firearm.

Abstract: An adjustable arm supports a device housing with respect to a base and allows the position of the device housing to be adjusted as desired. The adjustable arm has segments joined by pivot joints, with passages therethrough to allow wires to be strung through the arm segments and joints so as to be shielded by the arm. The joints can be either dual-pivot joints or single pivot joints, and for both types of joints, the frictional resistance of the joints can be adjusted. In some embodiments, the elements of the arm can be strung onto the wiring prior to assembly.

Abstract: In order to increase the clamping effect in an electrical screw connector used in industrial applications to fix or hold an electrical conductor, the support and contact surfaces for the electrical conductor are textured. According to the invention, the texturing of the support and contact surfaces for the electrical conductor is carried out by various production methods using embossing or stamping tools.

Abstract: A pinless device for orienting a motorcycle stabilizer wiper, such device having a platform adapted for stable attachment to a motorcycle; projections extending, preferably upward, from the platform in order to create a channel; an arm having a first end adapted for attachment to a shaft from a wiper of a motorcycle stabilizer and also having a second end of such dimensions that the second end can fit in the channel between the projections; and a means, such as a set screw, for releasably and securely fastening the second end of the arm in the channel between the projections.

Abstract: The invention relates to lifting gear having a drive unit (2), a drive shaft (3), which has a drive flange (4) fixable thereon and can be driven by the drive unit (2), and a cable drum (5) that can be connected to the drive flange by means of a coupling, said coupling comprising at least one coupling element (10) engaging in a recess (11) in the drive flange (4) and in a hole (12) in the cable drum (5) to transmit torque. In order to equip a lifting gear having a drive unit comprising a motor and a gearbox with a coupling, which ensures simple assembly with a simple and space-saving design, according to the invention the coupling element (10) is movable and fixable radially from an assembly position into an operating position, in which the coupling element (10) connects the drive flange (4) to the cable drum (5) in a driveable manner.

Abstract: A flagpole having a plurality of linear tubular members with ends of adjacent tubular members connected with coupling members including arcuate segments retained in tight surface engagement with inside surfaces of the tubular members with fasteners and a coupling assembly having a cone-shaped body and a sleeve connecting tubular members.

Abstract: There is described a device (10) for fixing accessories in a motorcycle, in particular for a windshield (14), comprising at least one shaft (12) insertable in a sleeve element (18) constrainable to a fixed component (16) of the motorcycle. A portion of shaft (12) comprises at least one elastic spacer element (20) insertable into the sleeve element (18) and actuable by reversible junction means (30) between an expanded position, in engagement within the sleeve element (18), and a rest position, extractable from the sleeve element (18).

Abstract: A connection mechanism is provided with a shaft member formed with an outer-screw portion which is formed with an outer screw, a plate member formed with a connection hole in which the shaft member is fitted, a nut member formed with an inner-screw to engage with the outer-screw of the shaft member, the nut member engaged with the shaft member being urged toward the plate member fitted on the shaft member to fixedly secure the plate member onto the shaft member, and a fixing mechanism that fixes the plate member and the nut member with each other to retain a status where the plate member and the nut member are urged oppositely in a rotational direction about a central axis of the shaft member.

Abstract: A flagpole having a plurality of linear tubular members with ends of adjacent tubular members connected with coupling members including arcuate segments retained in tight surface engagement with inside surfaces of the tubular members with fasteners.