Abstract: A tailboard system for horse stalls. A tailboard system for a horse stall includes a plurality of tailboard sections, each tailboard section including a first arched portion between a first pair of integral flanges including an upper flange and a lower flange, the arched portion including a pair of straight, angled sides connected by a rounded tip, and a first tapered end adjacent to a second tapered end of an adjacent section of the plurality of tailboard sections to form a triangular gap therebetween, and a joint strap covering the triangular gap, the joint strap including a second pair of flanges between a second arched portion, and wherein the plurality of tailboard sections are adapted to be mounted by the pair of flanges in a row around at least a portion of an inside perimeter of the horse stall to form the tailboard system.

Abstract: Provided are a brush head assembly and an electric toothbrush. The brush head assembly comprises a brush head body, a linking component and a locking cylinder; wherein a component assembly cavity is arranged at the tail end of the brush head body, the linking component is installed in the component assembly cavity, and a deformable locking cylinder including a fulcrum force-receiving part and a force applying part with elastic forces at both ends is embedded; the locking cylinder makes most of the strokes of the drive shaft in the insertion process smooth and convenient, only until the two force applying parts are both in contact with the drive shaft, will force be generated to lock the drive shaft, and the locking effect achieved by this elastic force can be maintained for a long time. Thus ensuring the capabilities of torque transmission and axial retention.

Abstract: An anchor bolt fastener assembly with specialized connection capabilities and features for attaching building components to concrete slabs, walls, ceilings, and/or structural surfaces. Compression force can be established and maintained over time using a compression washer in combination with a specialized fastener stud that is designed to exploit the compression washer benefits. Methods of using exemplary embodiments include installing the anchor bolt fastener assembly relatively flush with the surface of the concrete slurry by direct insertion in the slurry using a specialized threaded anchor bolt float. Once the slurry hardens, the anchor bolt and anchor bolt float embedded in the concrete slurry cooperate with the specialized fastener stud to secure the building component to the concrete.

Abstract: The present disclosure discloses a threaded nut. The threaded nut comprises a body, a plurality of threaded blocks, and a pushing cover. The body comprises a first through hole and a mounting cavity connected to the first through hole. The plurality of threaded blocks is configured to move in the mounting cavity in a radial direction. An inner wall of each of the plurality of threaded blocks is disposed with an internal thread, and an outer wall of each of the plurality of threaded blocks is disposed with a first inclined surface and a first straight surface. The pushing cover is disposed with a second through hole, at least one second straight surface, and at least one second inclined surface.

Abstract: The cover for a drug product bottle with transfer tubes extending therefrom. The cover is made with two parts that close on each other over a screw cap on a drug product bottle. The parts each have a ledge that fits under the screw cap, an intermediately disposed flange that rests on the screw cap and a semi-circular lid spaced from the flange. The flanges and lids define an encapsulated space when the parts are in a closed position to encapsulate the transfer tubes extending from the bottle.

Abstract: A coupling including a body member including a fitting hole into which an end of a spline shaft is fitted, and a connecting portion, the shaft including spline grooves linearly extending in an axial direction in a circumferential direction; a positioning mechanism positioning the body member in the circumferential direction with respect to the shaft fitted into the fitting hole; and a fixing portion fixing, to the shaft, the body member being positioned. The positioning mechanism includes a screw hole provided in the body member so as to penetrate from an outer surface of the body member to an inner surface of the fitting hole, a screw member fastened into the screw hole, and a pressing part having a circular cross section, provided in a tip of the screw member, and pressed against the spline groove by fastening of the screw member into the screw hole.

Abstract: A method of mechanically connecting two or more components together comprises the steps of: i. mounting an elongate keyway connector (10) comprising regularly spaced keyways (13) to a first component wherein the keyways (13) provide a longitudinal keyway passage (16); ii. mounting at least one elongate key connector (11) comprising regularly spaced keys (14) to a second component; and iii. extending the keys (14) longitudinally within the keyway passage (16) and engaging the keyways (13) with the keys (14) to connect the first and second components together.

Abstract: A compression coupler contains a robust and simple mechanism to couple threadless tubes in bicycles and/or scooters. Particulrly, the handlebar/stem tube-to-fork joint is coupled with a compression sleeve. The coupler provides more surface area for binding and is tightened along a slot on the length of the coupler. The coupler can include a headtube bearing preloading mechanism, a keyway for aligning the handlebar/stem tube to the fork, and shims to accommodate different sized tubing.

Abstract: A swiveling locking mechanism of a telescopic rod of a mop, including: an internal clamping sleeve, an external clamping cylinder, and a U-shaped locking arm. The external clamping cylinder is mounted on the internal clamping sleeve and the lower portion of the external clamping cylinder is constructed as a trumpet-shaped opening mounted from top to bottom on the conic body. The U-shaped locking arm includes an eccentric cam is provided with a mounting hole corresponding to the axle hole of the internal clamping sleeve. Thus, when moving downward the U-shaped locking arm, the external clamping cylinder rises, and the trumpet-shaped opening of the external clamping cylinder is brought in a loosened position. As a result, the indentation is loosened and the internal rod and the external rod are brought into the unlocked and telescopic state and vice versa.

Abstract: A continuous composite fiberglass sucker rod for connection between a pump and a pump drive has a rectangular cross section. End fittings having a rod receiving cavity are connected to the rod ends using a curable adhesive. The rod fitting is maintained in a vertical position with the cavity facing upwardly. The rod end portion is positioned in the cavity with the end at the bottom of the cavity. Curable adhesive is introduced into the cavity. A centralizer bushing is used to maintain alignment of the rod relative to the cavity. A portable heating device receives the fitting and rod end portion and enhances the curing process.

Abstract: A composite structural member is provided. The structural member includes a tubular shaft having a mating region of stiffness, and possibly thickness, greater than another region of said shaft. The shaft defines a lumen, and a fitting is disposed in the lumen. The fitting has a coupling region that defines at least one recessed portion bounded by one or more non-recessed portions, and the mating region mates with the coupling region of said fitting. As such, the shaft and fitting are mechanically restrained from at least some relative movement due to interference of the shaft and the fitting. A sleeve may be coupled to said shaft, for example, by including a tubular inner surface that proximately surrounds at least part of said shaft and mating region, for discouraging expansion of the mating region of said shaft.

Abstract: A swivel assembly for a tire comprises a clamp assembly adapted to be secured to a header tube, a swivel first member suspended from the clamp to pivot either parallel to or perpendicular to a longitudinal axis of the header tube, a swivel second member which is suspended from the swivel first member to pivot 90° relative to the pivotal motion of the swivel first member, and a swivel third member which can rotate about the swivel second member. The swivel first member is pivotally mounted to the clamp via an upper pivot pin and the second swivel member is pivotally mounted to the swivel first member by a second lower pivot pin. Lastly, the swivel assembly can include a tether which extends over the header tube to which the clamp assembly is secured which has opposite ends secured to opposite sides of the lower pivot pin.

Abstract: A sanitary clamp for connection to a pair of barb connectors each having one end terminating at a funnel shaped portion is described herein. The sanitary clamp includes a first member having a first semi-circular center portion disposed between a first end and a second end. A second member has a second semi-circular center portion disposed between a first end and a second end. Said first ends of the first and second members are configured to pivotally connect to each other, and said second ends of the first and second members include a locking mechanism for selectively locking the second ends of the first and second members in engagement.

Abstract: A sanitary clamp made of high molecular weight thermoplastic polymer for connection to a barb connector having one end with a funnel formation. The sanitary clamp includes a pair of essentially semi-circular members having a pivotal connection at one of the ends of each member and a locking connection at the other ends of each member. The semi-circular portions of the members are configured to sealing and secure a pair of funneled ends of a pair of barb connectors with an O-ring disposed therebetween. The locking ends of the sanitary clamp includes a ratchet portion on one member and a housing member configured to lockingly receive the ratchet portion on the other member.

Abstract: An adapter is provided for coupling an output shaft of a servo to an auxiliary shaft. The adapter includes an adapter body having a longitudinal axis extending from a first end to a second end. The adapter body includes a first bore centered on the longitudinal axis and extending into the first end a first distance. The first bore is configured to accept a portion of the auxiliary shaft. The adapter body also includes a second bore centered on the longitudinal axis and extending into the second end a second distance. The adapter also includes an engagement member positioned within the second bore. The engagement member is configured to accept and engage a portion of the output shaft of the servo.

Abstract: A system for providing a mechanical and electrical connection between the ends of two essentially-coaxial shafts (1 and 2), whereby each shaft end includes a groove (11, 12) close to an axial end extension (17 and 8; 18 and 9). Moreover, the aforementioned ends are connected inside a sleeve (10) including the following: a first annular shoulder (13) having a shape that is complementary to that of the groove of the first shaft, such that there is no clearance therebetween; a second annular shoulder (14) having a shape that is complementary to that of the groove (12) of the second shaft, but with a clearance therebetween; and a cavity (16) which is intended to receive the shaft ends, said cavity having an axial height which is greater than the sum of the axial heights of the axial end extensions (17 and 8; 18 and 9). Further, the axial end extensions (17 and 8; 18 and 9) of the two shafts are in permanent mechanical and electrical contact.

Abstract: An exemplary, non-limiting swivel fitting attachment apparatus includes a ball fitting and a swivel fitting. The ball fitting includes a base having an attachment portion, such as a flange, arranged for attachment to a structure and a ball attachable to the base. The ball may be removably attachable or fixedly attached to the base. The swivel fitting has a first end having a socket portion that is arranged to receive the ball therein and a second end having an attachment portion that is arranged for attachment to an object. The socket portion of the swivel fitting may be expandable and closeable over the ball, and may include first and second socket portion members that are urgeable toward and away from each other. The second end of the swivel fitting may be couplable to a clevis fitting.

Abstract: A building member including a male portion and a female portion that are releasably connected together. The male portion includes a first beam having a first pair of wings joined together by a first crosspiece. A first bracket has first opposed ends each of which is affixed to a respective one of the first pair of wings so as to define a first slot between the first crosspiece and the first bracket. A tongue has an inner end that is affixed to the first crosspiece and an outer end, remote from the inner end, which extends through the first slot and outwardly from the first beam. The outer end of the tongue is provided with a first hole. The female portion, however, has a second beam that is adapted for end-to-end abutment with the first beam. The second beam has a second pair of wings that are joined together by a second crosspiece.

Abstract: The invention relates to a compact eccentric screw pump including a sliding articulation. The long-lasting operation of the pump is ensured by a plurality of functions. According to the invention, both the reaction pressure resulting from the transport pressure and the concomitant phenomena emerging from the eccentrically rotating rotor and acting on the articulation and the drive are approximately equalized.

Abstract: In a fastening tool in which fastening members may be inclined as they are threadedly inserted together whereby almost no displacement load is applied to the members, a member having a bolt through hole with a tapered seat surface, and a fastening bolt that includes a bolt body provided about its outer periphery with a male thread, and a head provided on an end of the bolt body that has a diameter greater than that of the bolt body, in which the head has a lower outwardly curved tapered surface whose diameter is reduced toward the bolt body so that the lower surface abuts against the tapered seat surface when the fastening tool is used.

Abstract: A closure for cable connection capable of being readily assembled with fastening force of a sufficient level, rapidly accomplishing leading-out of a cable from a cable connection section and storage of the cable, and exhibiting enhanced airtightness while exhibiting increased reliability. The closure includes sleeve members and end plates. The end plates are each provided with slits which extend from cable guide holes to an outer surface of the end plate. Each cable guide hole is provided thereon with a thin-wall cap and the slit is detachably fitted therein with a rigidity holding member. An adhesive tape-like gasket is interposed between an outer periphery of the end plate and an inner surface of a sleeve so as to cover an outer end portion of the slit.

Abstract: A hanger mounted within a bore of a tubular string component has a split ring, a tapered key and a passageway formed in the hanger. The split ring has interfacial surfaces cooperating with interfacial surfaces of the tapered key. The bore may be located within a tubular string component selected from pipe, drill pipe, doubled shouldered pipe, single shouldered pipe, drill collars, reamers, production pipe, composite pipe, well casing, risers, underground utility lines, rotors, positive displacement rotors, jars, shock absorbers, heavy weight drill pipe, hammers, and turbines. A conduit or electronic equipment may be disposed within the passageway. The passageway may be formed in the tapered key or in the split ring. A transmission element may also be disposed within a groove formed in the hanger.

Abstract: In a shaft coupling having a pair of complementally shaped, detachably joinable coupling sleeve halves (11, 12) which can be clamped together by means of clamping elements to form a split coupling sleeve provided with at least one seat (14) for a first shaft member (A1) which is to be non-rotatably connected with a second shaft member (A2, A2?) so that the first and second shaft members are aligned.

Abstract: An anchoring rod for rock anchoring (self-drilling injection bolts), includes an outer thread for connecting the anchoring rod to a drilling tool via a coupling sleeve. The end of the anchoring rod, which is screwed into the coupling sleeve, comprises a section which has a reduced diameter in comparison with the outer diameter of the anchoring rod. The free end of the section of the anchoring rod with the reduced diameter comprises a bevel. An open space is thus formed between the inner surface of the coupling sleeve and the reduced diameter end of the anchoring rod. The space stops the anchoring rod from becoming stuck in the coupling sleeve, even when the end of the rod is plastically deformed during the drilling process, so that the anchoring rod can be unscrewed from the coupling sleeve without applying significant force.

Abstract: An improved dowel fastener for compressive insertion within a recess, bore or aperture in each of two joint members of wood, metal, plastic or combinations thereof to frictionally retain one joint member to the other. The dowel fastener includes a flexible, resilient, tubular body having a preferably spiral slot extending from end to end and at least one and preferably two spaced tabs at positions along the slot. The tabs each extend from one slot edge across the slot toward the opposing slot edge and engage the inside surface of the tubular body adjacent the opposing slot edge. The body provides a cylindrical exterior gripping surface for engagement with the sides of the joint apertures and is sufficiently flexible for compression from its normal, uncompressed diameter for insertion in a smaller fastening aperture.

Abstract: A connector for connecting elongate members, such as pile sections, in an end-to-end relationship. A housing is fitted to each end of a reinforcing bar in the elongate member. The housing has a first attachment socket at one end, the first attachment socket having an internal thread for accommodating helical protrusions formed on an outer surface of a standard reinforcing bar. A second attachment socket having a circular cross section is provided at the other end of the housing. Protrusions having a saw tooth cross section project inwardly from the second socket walls. The connector also includes an initially separate joining member which comprises a hollow cylinder having a short central portion with no protrusions therefrom and serrated sections extending from each end thereof, each having protrusions of a configuration corresponding to the configuration of the protrusions from the second attachment socket.

Abstract: A rotating attachment device for attaching the upper end of a swing to a support bar generally comprises and inner bearing and an outer bearing. The inner bearing comprises at least two inner bearing arc segment members for direct placement on the cross bar, each including an outer side including a raceway including a radial bearing surface. The outer bearing includes a first and second semi-cylindrical outer bearing members including an inner side having a bearing surface, pivotly connected first ends such that the outer bearing is pivotable between an open position for fitting over the first bearing and a closed position bearing on the inner bearing such that the outer bearing is rotatable 360 degrees about the swing support bar, and second ends including a latch for latching the outer bearing around the inner bearing in the closed position.

Abstract: A rod clip for connecting a rod to a lever comprises a first portion and a second portion hinged to the first portion. The first portion has a top surface having a recess for receiving a rod, such that folding the second portion over the first portion forms a channel for retaining the rod. There are rod retaining tabs disposed above the channel for retaining the rod in the channel until the second portion can be snapped over the first portion. There is a lock for locking the first portion to the second portion after the second portion is folded over the first portion. There is a lever retaining device disposed on one of the two portions. The hinge is formed by apertures on sides of one of the portions and corresponding protrusions on the other. The protrusions extend into the apertures to allow pivoting of the first and second portions with respect to each other.

Abstract: A fastener mechanism operable between an unlocked position and a locked position to securely fasten items of various sizes and shapes includes a first member and a second member each having a sidewall, a front wall, a rear wall and a receiving chamber disposed adjacent the front wall of each member. The second member contains a hollow interior and is slightly larger than the first member so that the first member can be inserted inside the hollow interior. The receiving chambers extend axially along each member and contain an opening and angularly disposed sidewalls forming an apex. To securely fasten the item, the first member is co-axially aligned with the second member so that the receiving chamber openings are oriented to form an aperture to receive the item. The first member is then slideably inserted into the second member hollow interior. As the first member is inserted inside the second member, the aperture reduces in size to grip and securely fasten the item.

Abstract: The clamp has two semi-circular sections that are adapted to be placed around an exterior surface of a gas cylinder and/or an associated shaft. Each section has a set of mirror imaged apertures adapted to receive securing elements to hold the clamp in a set position. In addition, a fastening element is provided to control delivery of tension to the cylinder, which controls extension of the shaft in communication with the cylinder.

Abstract: A fixture for connecting two or more elongate bars in end to end relationship. The bars are provided with ribs on an external surface thereof. The fixture comprises a set of inner segments with formations to engage with the ribs on the bars. A set of intermediate segments and/or an outer sleeve is then positionable around the inner segments to maintain the same in position. The outer sleeve passes over the intermediate segments and mechanically engages the segments and members in the end to end relationship.

Abstract: In a shaft coupling comprising a pair of complementally shaped, detachably joinable coupling sleeve halves (11, 12) which can be clamped together by means of clamping elements form a split coupling sleeve provided with at least one seat (14) for a first shaft member (A1) which is to be non-rotatably connected with a second shaft member (A2, A2′) so that the first and sec-ond shaft members are aligned. In a retaining device including retaining elements for positively locking the first shaft member (A1) against rota-tional movement relative to the coupling sleeve, the retaining elements in-clude a plurality of elongate force transmitting elements (16D) in the seat (14, 15). These elements extend along a line including an angle with a plane (L) perpendicular to the axis (C3) of the coupling sleeve and are shaped so as to be in interlocking engagement with complemental force transmitting elements (A3D) on the first shaft member (A1).

Abstract: The invention is directed to a brush section (2) for an electric toothbrush (1), having a carrier tube (4) to which is fitted a bristle carrier (5) comprising a plurality of bristles (6). The carrier tube (4) is adapted to plug onto a mount (7) of a hand piece (3) of the electric toothbrush (1). Provision is made for spring elements (14) arranged between the carrier tube (4) and the mount (7). Noises and vibrations are thereby reduced when the electric toothbrush (1) is in the activated condition.

Abstract: A high tensile rod connector is provided that includes a first section having an internally threaded surface and a second section having an internally threaded surface. The threads of the first section mate with the threads of the second section. A pair of first flanges is rigidly coupled to the first section and extends outwardly therefrom. Similarly, a pair of second flanges is rigidly coupled to the second section. A series of bolts extends from the first flanges to the second flanges. The bolts are adapted to removably couple the first section to the second section. The first and second sections may be located on a damaged tie rod and secured thereto, thereby repairing the damaged tie rod without removing tension therefrom.

Abstract: A fixture for connecting two or more elongate bars in end to end relationship. The bars are provided with ribs on an external surface thereof. The fixture comprises a set of inner segments with formations to engage with the ribs on the bars. A set of intermediate segments and/or an outer sleeve is then positionable around the inner segments to maintain the same in position. The outer sleeve passes over the intermediate segments and mechanically engages the segments and members in the end to end relationship.

Abstract: The present invention relates to a clamping joint for joining a ramification line (15) to an anchoring wire (13), comprising a clamping mechanism comprising two halves (18) split in the longitudinal direction of the wire, which clamping mechanism clamps around the wire via one in each half provided wire channel half (20), whereby the wire channel (20) formed by the two halves is such dimensioned that it is in a position mounted around the wire (13) provides an interspace which is filled by a deformable insert (21) provided in said interspace for locking the clamping mechanism with regard to rotation around the wire, and that the clamping mechanism is provided with a sliding surface for a shackle (24) being arranged around the clamping mechanism which shackle forms a fastening point for a ramification line (15).

Abstract: A foldable member in the shape of a tube with at least one predetermined hinge area along the length of the tube, and a plurality of opposing elongated slots in the tube at the hinge area thereof forming separated longitudinal strips of tube material between the slots which fold when subjected to localized buckling forces. A collapsible structure constructed of such foldable members.

Abstract: The invention is directed to a brush section (2) for an electric toothbrush (1), having a carrier tube (4) to which is fitted a bristle carrier (5) comprising a plurality of bristles (6). The carrier tube (4) is adapted to plug onto a mount (7) of a hand piece (3) of the electric toothbrush (1). Provision is made for spring elements (14) arranged between the carrier tube (4) and the mount (7). Noises and vibrations are thereby reduced when the electric toothbrush (1) is in the activated condition.

Abstract: A closure system includes two longitudinally-extending shell members, each having flanges. Each of the flanges have inner and outer surfaces such that in a closed state the inner surfaces of each of the flanges contact one another to form at least one longitudinal seam. Several longitudinally extending ramp pairs are disposed on the outer surfaces of the flanges One ramp of each ramp pair is disposed on the outer surface of one flange and another ramp of each ramp pair is disposed on the outer surface of the other flange. The ramp pairs are inclined away from the longitudinal seam when viewed along a first direction. A clamping rail has an inner surface that includes a guide channel interlocking with the ramp pairs so that the first and second flanges compress the seam. Additional longitudinally extending ramp pairs can be disposed on the outer surfaces of the flanges, in which case a second clamping rail having an inner surface that includes a second guide channel interlocks with the additional ramp pairs.

Abstract: A hanger apparatus assembled by joining connectors to elongate rods, which connectors define an open side running the entire length of the channel with a rib opposite of the opening for strength and rigidity of the connector. Four openings define oblique angle edges, preferably with a 45 degree angle, for clearance open to four slots that are in line with another forming two opposing groups which allow a flattened end of a rod to be inserted, lowered, and snapped in place. Inserting a rod into both groups creates a simple, economical, and reusable connection of the two rods. Four tabs protrude into the channel with a center line just above the top of the rod to be inserted allowing the rod to be held firmly in the connector and creating a barrier that restricts the rod from starting to moving to a position perpendicular to the connector which is how the rod is inserted and taken out.

Abstract: The invention provides a locking device for locking two matching lens cell halves of a lens cell. In particular, the invention resides in clips which are located at the joint where the two cell halves mate. The clips, which are molded as part of each cell half, are each comprised of a male member which is inserted into a female member. The male member includes a flexible tab which is deflected when inserted into the female member. After insertion, it is maintained in a deformed state, that is the tab is maintained by the female member so that it is bent from its original position. As a result, a bending moment is induced and maintained in the tab and that moment pushes the tab against an outer wall of the female member. Consequently, forces are established which lock the male member in place. Additionally, the wall of the female member exerts a force on the tab and that force, which is inwardly directed, serves to lock together the two halves and ensures retention of the lens units within the lens cell.

Abstract: A connector and method for connecting two drywall corner finishing devices. The connector connects and/or aligns the two drywall corner finishing devices positioned end to end by being inserted into corresponding openings located in the profile of the drywall corner finishing devices. The side members of the connector are pinched in, reducing the size and shape of the cross-section of the connector so as to fit within the corresponding openings. When released the side members deflect back pressing out against the sidewall of the openings.

Abstract: A cylindrical shape with a open channel running the entire length (7). Opposite of the channel is a rib (5) added for strength and rigidity of the connector. Four openings (1) with a 45 degree angle (2) used for clearance open to four slots (3). Each slot is in line with another forming two groups which allow a flattened end of a rod to be inserted, lowered, and snapped in place. Inserting a rod into both groups creates a simple, economical, and reusable connection. Four tabs (4) protrude into the channel with a center line just above the top of the rod to be inserted allowing the rod to be held firmly in the connector and creating a barrier that doesn't permit the rod to start moving perpendicular to the connector which is how the rod is inserted and taken out. The length and width (6) of the material can vary depending on the weight requirements. A coated or inherently corrosion resistant alloy or a plastic that can resist the eliminates of the outdoors is appropriate.

Abstract: A coupling device joins and axially aligns segments of a driveshaft or other shaft to form one, continuous length, shaft for use in a machine press.

Abstract: A splice for concrete reinforcement bars includes two diametrically opposed half-shells spanning the aligned ends of the rebars. The half-shells interlock with upset bar ends to hold the bars together. An internally tapered sleeve is forced axially over the tapered exterior of the half-shells in a taper lock to secure the splice joint.

Abstract: A quick connect splice for concrete reinforcement bars includes two diametrically opposed half-shells spanning the aligned ends of the rebars. The half-shells interlock with raised ridges on the bar surfaces to hold the bar ends together. Two sleeve elements slipped over the bars are screwed to each other over the shell sections to secure the splice joint.

Abstract: A coupling member for interconnecting a hydraulic ejector cylinder, of injection molding equipment, with a mold ejector system to insure that the mold ejector system of the mold is properly activated and returned to its fully retracted position prior to commencing a further injection molding cycle. The coupling member comprises a first elongate stud which is releasably couplable to a second elongate stud to form the coupling member. The first elongate stud has a head, at one end thereof, and the second elongate stud has a stud recessed portion, at a mating end thereof, for at least partially receiving the head. A locking mechanism, carried by the second elongate stud, allows engagement and disengagement of the head from the stud recessed portion, when in a first position, and secures the head at least partially within the stud recessed portion, when in a second position.

Abstract: There is disclosed an assembly of board for floor boarding and means for fixing the same to adjacent boards, said board comprising a frame, of generally rectangular shape, suitable for accommodating therein a flooring surface, such frame comprising a first pair of opposite beams and a second pair of opposite beams connecting the first pair of beams. The beams of said first pair are provided, at least at their ends, with recesses suitable for housing clamps for coupling the board with adjacent boards. The recesses are associated to releasable snap engagement means that engage in respective seats provided for on the clamps to prevent the clamps from slipping out of said recesses.

Abstract: An apparatus for adjusting the grip of a tubular chuck upon work, the chuck receivable in a bore formed by a holder, and comprising a rotatable connector member having first and second thread connections for exerting force transmitted to the chuck; the head connections characterized as differential, whereby as the member is rotated, the chuck closes toward the work, with high mechanical advantage; the chuck defining a first axis; the connector member defining a second axis generally transverse to the first axis, the axes being non-interconnecting.

Abstract: A vehicle wheel rim has a rim base (1) carrying a pair of bead-retaining flanges (2, 4), one of which is on a bead seat ring (5) releasably retained, in use, on the rim base (1) by a locking ring (6) engaging in a groove (7) formed in a gutter section (3) of the rim base. The locking ring is shaped so as to cooperate with formations (5A, 9), respectively in the bead ring (5) and rim base (1) to provide a positive lock limiting relative rotation between the bead seat ring and rim base.