Abstract: A locking mechanism for a clamping assembly includes a roller locking mechanism, at least one clamping member and a shaft member for coupling the roller locking mechanism with the first clamping member. The roller mechanism includes a roller rotatably connected to a handle which contacts a bearing surface to place a compressive force on the first clamping member when the handle is actuated. Another locking mechanism includes a camming member having cam face with a sliding cam surface and a frictional cam surface adjacent to the sliding cam surface. The camming member produces a compressive force on the clamping member as the sliding cam surface contacts a bearing surface and increased static friction when the frictional cam surface contacts the bearing surface to help maintain the camming member in a locked position.

Abstract: The erectable shelter includes an awning assembly for a shelter that is removably mounted to two or more adjacent legs of the shelter. The awning assembly is mounted so that it can be moved between a downwardly directed vertical position and an upwardly directed vertical position, and to an intermediate horizontal position between the downwardly directed vertical position and an upwardly directed vertical position, allowing the awning to provide shade and to serve as a holder for signage.

Abstract: An extension handle apparatus is provided for a wheeled chair which includes handle support tubes for supporting one or more wheeled-chair handles. The extension handle apparatus includes an extension support portion and an extension handle portion connected to the extension support portion. A pair of clamping plates are provided, wherein each clamping plate includes an extension-support reception region and a wheeled-chair-handle-support-tube reception region. Clamping fasteners are connected between the clamping plates, and a retention assembly is connected between the clamping plates for retaining the clamping plates in opposite positions with respect to each other. The wheeled-chair handles are a fixed distance from the wheeled chair. By using retrofitted extension handle apparatuses of the invention attached to the handle support tubes on the wheeled chair, the effective distance of extension handle portions from the wheeled chair can be adjusted as desired.

Abstract: A one-piece clamping element has two opposing clamping jaws forming a laterally open cavity to receive a rod-shaped element. A hinge is located between the jaws, arranged opposite the cavity, and connecting the clamping jaws with one another and thus allowing them to be movable with respect to one another. Each clamping jaw has one bore, aligned flush with one another. One clamping jaw has a receptacle for an anti-rotation device. The receptacle makes it preferable—with the exception of an immediate tightening of the screw in this or another place of an external fixator clamping element used for the same patient—to use the clamping element only once and discarding it after use. Two identical clamping elements, with the possible exception of the size of the rod receptacle, can be placed on top of one another to form an articulation element.

Abstract: The present invention provides a support clamp device for a safety rail or similar device adapted for mounting on a pump jack pole comprising: a first pole clamp, circumscribing a generally rectangular perimeter, the first pole clamp comprising a generally U-shaped bar having a first side; a second side and a third side, wherein the first and third sides are approximately parallel to each other and the second side is approximately perpendicular to the first and third sides and wherein the second side further comprises an aperture; and a fourth side removably attached to the first and third sides opposite and approximately parallel the second side; and a second pole clamp, circumscribing a generally rectangular perimeter, the second pole clamp comprising a generally U-shaped bar having a first side; a second side and a third side, and a pole clamp connecting fastening means, the first pole clamp and the second pole clamp are able to pivotably rotate about the axis formed by the pole clamp connecting fastener.

Abstract: A clamp for connecting together a set of structural bars having a body defining at least one pair of prismatic guides for positioning one of the bars within the clamp and a locking mechanism for securing the bars inside the guides. The body is defined by four sheet metal plates arranged parallel and facing each other in pairs of two, each pair of two arranged perpendicular to the other such that each pair is connected to the other collectively along four parallel edges of the body. The prismatic guides are each defined by a pair of aligned seats formed along respective sides of each pair of facing plates.

Abstract: A massage system providing a bracket for rigidly holding an electric or percussion massager, for example, a handheld massager, and a bracket height adjustment such that the massager may be utilized by a user at a specific height. The massage system provides rigid support for the massager to enable a person to back into the massager thereby more easily controlling the massage by him or herself without requiring use of the hands. The unit is wall mounted or door hung using a vertical bar and clamping holder. A programmable, motor operated unit is also disclosed.

Abstract: A connecting part for attachment on a mounting rail has a fastening part with an at least approximately rectangular cross-section. The fastening part has legs and surrounds when mounted a mounting rail on all sides by having a matching cross-section formed by the legs. The fastening part has clamping devices for effecting a clamping fixation of the connecting part on the mounting rail. A cross-sectional plane of the fastening part has two diagonally opposed corners and the clamping devices are arranged on the two diagonally opposed corners, respectively.

Abstract: A hanging device for a suitcase includes a main body, a clamping plate pivotally mounted on the main body, a receiving chamber formed between the main body and the clamping plate, and a press plate pivotally mounted on the main body and locked on the clamping plate to fix the clamping plate on the main body. Thus, the hanging device is mounted on the retractable handle of the suitcase to hang a bag (briefcase or portfolio) that is placed on the top of the suitcase and is supported by the protruding flange of the main body, thereby facilitating a user carrying the bag and the suitcase simultaneously.

Abstract: A device for attaching a handle or handlebar to a portable tool to be adjustable about two parallel axes in order to increase the range for the adjustments of position of the handle or handlebar relative to the tool. The device can also be used with existing tools.

Abstract: A hinge (11) comprising a bobbin (12) and an arm (13), the bobbin having a peripheral flange (14) at each end of a cylindrical portion (15) and being formed with two parts (12A, 12B) split longitudinally with internal surfaces (16) enabling the bobbin to be assembled non-rotatably around a rectangular-section frame member (17), there being holes (18) in the bobbin parts for securing them to the rectangular-section frame member, and the arm (13) having a first bore (19) rotatable around the cylindrical portion (15) of the bobbin and a second bore (20) parallel to the first bore and in which a round-section frame member (21) can rotate, the arm being split between the two bores and beyond at least one of the bores in a plane containing the axes of the bores enabling the arm (13) to be assembled around the bobbin (12) and the round-section frame member (21), there being holes (22) in the arm (13) intermediate the bores (19, 20) and perpendicular to the plane for securing the arm on the bobbin and the round-secti

Abstract: Surgical retractor apparatus is shown having at least two independently operable clamping locations for receiving pivot balls therein. These two clamping locations lock and unlock their respective pivot balls independent of locking of the other pivot ball. Furthermore, the locking mechanisms utilized to lock the pivot balls also utilize the lock the angular position of the extension rod relative to the clamp. An adjuster intermediate the clamping positions allows for the movement of the clamping location relative to each other.

Abstract: A connecting device for tubular frame members, first (2a) and second (2b), particularly for stretcher (3) having two half-stretchers (3a, 3b), comprises: connecting means, first (10) and second (20), respectively fixed to the tubular frame members, first (2a) and second (2b), and complementarily connectable in correspondence of a coupling condition (A) of the tubular frame members (2a, 2b); support means, first (30) and second (40), respectively joined with the connecting means, first (10) and second (20); booking means, first (50) and second (60), respectively joined to the connecting means, first (10) and second (20), and fit to engage with the support means, respectively second (40) and first (30), in correspondence of the coupling condition (A) and detachable from the support means (30, 40) in correspondence of an uncoupling condition (D) of the tubular frame members (2a, 2b), in consequence of the disengagement of the hooking means (50, 60) from the support means (30, 40) and of the consequent mutual dis

Abstract: The scaffold clamp of the present invention comprises a body portion, two pivotting latches attached on opposite sides of said body, two recessed sockets with each socket having a slot opening therein, and two fasteners with each fastener associated with one of said slots and passing therethrough. Each fastener includes a shank which slides through said recess with the shank having a captured wedge member on one side of the associated slot and a bolt head oversized relative to the slot and on an opposite side thereof. The fastener is captured on the body portion with the bolt head on one side of said slot and said wedge on the opposite side of said slot. The body portion includes on opposite sides thereof support recesses which cooperate with the associated latch to form a generally circular scaffold support engaging recess. The latch and wedge cooperate with the body portion to adjust the size of said circular engaging recess by movement of the wedge relative to the body portion.

Abstract: Surgical retractor apparatus is shown having at least two independently operable clamping locations for receiving pivot balls therein. These two clamping locations lock and unlock their respective pivot balls independent of locking of the other pivot ball. Furthermore, the locking mechanisms utilized to lock the pivot balls also utilize the lock the angular position of the extension rod relative to the clamp. An adjuster intermediate the clamping positions allows for the movement of the clamping location relative to each other.

Abstract: A universal accessory adapter, which is adapted for attaching to a collapsible outdoor furniture, includes a supporting device for rigidly supporting an accessory item, at least a connector for detachably attaching the supporting device to a frame leg of the collapsible outdoor furniture, and a foldable frame arranged for selectively folding the supporting device from a folded position to an unfolded position. In which, in the folded position, the supporting device is moved to a position close to the frame leg of the collapsible outdoor furniture, and in the unfolded position, the supporting device is moved away from the frame leg of the collapsible outdoor furniture, so as to spacedly mount the supporting device with respect to the frame leg of the collapsible outdoor furniture. Therefore, the universal accessory is substantially supported by the collapsible outdoor furniture, so as to rigidly support the accessory item on the universal accessory adapter.

Abstract: A coupling apparatus is comprised of three couplers for interconnecting three scaffolding members. The locking devices for the couplers may be of a bolt-and-nut configuration or, advantageously, of a wedge and arm, tapered circular wedge and arm or over-centre hand-lever.

Abstract: A truss union connector for releasably coupling the ends of two axially aligned pipes, where the connector has simple construction and is operable easily and quickly by actuating a simple knob. This truss union connector is optionally combined with a truss mount where one of the coupled pipes is mounted to a truss. The connector includes a set of split cylindrical shell segments that engage outer surfaces of the ends of the coupled pipes by dimples extending radially inward from the split shell segments into holes in the walls of the pipe surfaces, resulting in a secure but rapid coupling and de-coupling assembly.

Abstract: A fastener clip assembly for forming a substantially concealed joint between panels of furniture, a shelf assembly or the like includes a pair of clips telescopingly assembled with one another to form a joint which prevents rotation between the clips and joint members. The clips are secured to respective joint members and assembled with a portion of the second clip received through the slot of the first clip such that offset engagement sections overlap one another while a resilient, flexible inclined section on at least one, but preferably both, of the engagement sections draws the clips and joint members together. An engaging member which resists disassembly of the clips may be included.

Abstract: A dock support bracket has a central clamp of general C shape having an internal channel and opposing first and second side arms. The bracket has a clamping screw and a first beam mounting base on the first side arm and has an abutment and a second beam mounting base on the second side arm. The second beam mounting base is angular to the second side arm and to the first beam mounting base. Dock section beams can be mounted on the respective mounting bases of the bracket to form a dock. A dock support post can be received within the channel of the clamp, and pressed by the clamping screw of the first side arm against slippage on the post. Docks formed using the bracket have minimal or no side projecting hardware.

Abstract: A structural system of connected toroidal elements for all types of structures of all sizes, wherein such toroidal elements may be connected in level layers which may in turn be connected in stacks to form towers, domical and spherical structures, and connected in the forms of regular polyhedra to form domical and spherical structures. Structures may be constructed of frameworks formed by connected toroidal elements of various sizes and shapes.

Abstract: A hand-held laser detector clamp apparatus is provided for use in attachment against virtually all available sizes and shapes of members found on construction sites and in surveying applications. A reversible jaw adapter that contains both a “flat” face and a “ramped” face is attached to a travelling clamp jaw with a clamp lead screw. The reversible jaw adapter can be used with either its flat face out or its ramped face out. A detector bracket and detector screw are also provided as part of the clamp apparatus to hold a hand-held laser detector in place. If the flat face of the reversible jaw adapter is oriented so as to be “out,” then the clamp apparatus will generally be most useable in attaching to flat surfaces, such as rectangular rods or boards.

Abstract: A clamp for cylindrical objects uses a plurality of split-rings, each of which has a first half-ring and a second half-ring. Each first half-ring is hingedly coupled to a corresponding second half-ring at a hinge point. Means, coupled to each first half-ring at a distance from the hinge point, are coupled to a control assembly. The control assembly is operated to apply one of a pulling force to each first half-ring to simultaneously open each of the split-rings, or a pushing force to each first half-ring to simultaneously close each of the split-rings.

Abstract: A method and apparatus are disclosed for use in conjunction with concrete construction that incorporates steel reinforcing bar formwork. In particular, the invention relates to a clamp that includes a plate having a plurality of gripping positions for clamping a first reinforcing bar against the plate and a recessed channel positioned on the plate between the gripping positions so that when a second reinforcing bar is aligned in the channel and the first reinforcing bar is clamped at the gripping position, the gripping positions will hold the first reinforcing bar and will also hold the first reinforcing bar in an overlying fashion against the second reinforcing bar in the channel.

Abstract: A twisted bicycle stem includes first and second substantially identical helically twisted clamping members fastened together using four threaded fasteners received in four corresponding threaded apertures. The assembled twisted stem defines a vertical cylindrical receiving aperture and an opposing substantially horizontal cylindrical receiving aperture having a central axis offset by 90° with respect to the central axis of vertical receiving aperture. The two helically twisted clamping members each comprise one-half of the finished stem structure for receiving the substantially horizontal handlebar and the substantially vertical steerer tube. First and second helically twisted clamping members are preferably manufactured of an engineering plastic, preferably reinforced with a 50% glass fiber fill or carbon fiber fill using high tensile strength filaments.

Abstract: An anchorage kit 100 includes components which may be assembled in various ways to provide anchorages 101-107 suitable for connection in series between a safety line and any of various structural members. The kit 100 includes opposing brackets 120, 140 which are interconnected by bolts 170 extending therebetween, and which may be supplemented by one or more braces 160 secured to the intermediate portion of one or more of the bolts 170.

Abstract: A mounting bracket useful for securing a base, such as an antenna to a pole, a tube or a post, or a similar anchor support, and including a first clamp part, being a base clamp, to be secured to the base (the antenna) adapted to be locked against the pole, and a second clamp part, being tightening clamp, adapted to partly embrace the pole and to be tightened to the base clamp with the pole clamped therebetween, preferably by a screw-nut connection on each side of the pole. The tightening clamp, is formed with two elongated slots extending in the longitudinal direction of the clamp, a first slot of which may be closed and the second slot of which is open at the end of the clamp.

Abstract: A retractor support apparatus of the present invention includes a first support arm, a second support arm, and a first clamping member. The first and second support arms each have a pivot ball attached thereto. The first clamping member has a clamping bore that is adapted to receive and engage the pivot balls. The first clamping member retains the first and second support arms in a selected position when the clamp is in an open position. The first clamping member secures the first and second support arms in the selected position when the clamp is in clamping position.

Abstract: A device for connecting together a first tube and a second tube placed at a 90° angle with respect to one another. The device includes a flat base placed between the two tubes, and pierced with at least two holes, yokes for joining together the first tube with the base and for partially surrounding at least a portion of the first tube, and collars for joining the second tube and the base, the collars partially surrounding at least a portion of the second tube and interacting with the holes and with the yokes. The device may be used for connecting together pipes, especially in a gallery or a cell in the nuclear industry.

Abstract: A right-angle scaffold coupler comprises two jaw assemblies (10A, 10B) each with jaws formed by a closure-plate (12) hinged to a common chassis (11), and having a hand lever (14) hinged (at 21) to the plate (12) with a spirally-coiled spring (25 FIG. 4) as hinge-pin within interleaved finger-lugs (26, 27). A hook-member (15) hinged to the lever (14) engages a lip (19) of the chassis (11) so that depression of the lever (14) pulls the plate (12) towards the chassis (11) in closing the jaws onto a scaffolding tube (13) and clamping to it by over-center action. The spring (25) coils up more tightly during the over-center action allowing resilient displacement between the lugs (26, 27) of hinge (21) to accommodate variations in tube circumference. The jaw surface (17) of the chassis (11) subtends more than 180 degrees to snap fit with the tube (13).

Abstract: A clamp assembly for adjustably attaching a bicycle or exercise device seat having seat support rails to a seat support post includes two spaced pairs of inner and outer cheekpieces which have parallel abutting surfaces inclined at an angle to the vertical, each of the cheekpiece pairs defining a seat rail receiving groove therebetween. Threaded fasteners attach the cheekpieces to each other and to a clamp support structure such that the cheekpieces slide relative to each other along a plane between the parallel abutting surfaces to open or close the grooves. The cheekpieces may also be pivotally mounted on the clamp support structure for simultaneous adjustment of the angle of inclination of the grooves and seat rails clamped therein merely by adjustment of the same threaded fasteners.

Abstract: A container coupling tool having a handle for disengaging top and bottom cones which is less likely to be turned in the wrong way. The coupling tool has a tool body having a first protrusion and a second protrusion and is formed with a bore extending therethrough from the top face of the first protrusion to the bottom face of the second protrusion. A rotary shaft is inserted in the bore. The tool body is further formed with a handle inserting hole in which is inserted a handle shaft having a lever at its outer end. A motion converter is provided between the handle shaft and the rotary shaft. By pushing up the lever, the top cone can be disengaged, and by pulling down the lever, the bottom cone can be disengaged. Thus, the lever cannot be turned in the wrong way by mistake. A stopper is inserted in a stopper inserting hole formed in a flange of the tool body.

Abstract: A slitter-and-hole-punch and quick change adapter combination fits a bag machine or the like for punching holes and slits in a web of film material. A hole punch and a slitter blade are unitarily formed on a base member. Left and right resilient arms extend from distal to proximal, and have free ends that project proximally of the base member. The quick adapter can be an extruded block with a T-channel formed on a lower side with a passage or gap to accommodate the hole punch and the slitter blade. The T-channel has inwardly directed flanges that create side recesses to accommodate the resilient arms of the slitter-and-hole-punch. The side recesses have cooperating hollows to receive detents of the associated resilient arm. The slitter-and-hole-punch can be slid in and out of the T-slot, and when slid in, the detents on the resilient arms keep it in position. The slitter-and-hole-punch can be changed out in a few seconds by hand. The slitter-and-hole-punch units can be color coded, e.g., for gap size.

Abstract: A clamp for securing apparatus such as end-of-train equipment to a railroad coupler head includes a first finger member that is mounted to pivot about a pivot pin in scissors-like manner between a fixed second and third finger member affixed to a housing, a threaded rod and cooperating piston for pivoting the first finger member away from the fixed second and third finger members, a rail member for abutting against an outside surface of the coupler head, and a crank and handle for tightening the grip of the first, second and third fingers on the inner surfaces of the core hole when the crank is rotated.

Abstract: A power machine comprises an output manipulation system for controlling an output of a power source given to a working member and a brake manipulation system for stopping the movement of the working member. A pair of output manipulation restriction portions is disposed between the output manipulation system and the brake manipulation system. The output manipulation restriction portions abut to each other so as to restrict output manipulation to the working member by an output manipulation member when the working member is in the braked state. Furthermore, a pair of brake manipulation restriction portions is disposed between the output manipulation system and the brake manipulation system. The pair of brake manipulation restriction portions abut to each other so as to restrict brake manipulation of the working member by a brake manipulation member during the power source gives the output to the working member.

Abstract: A clamp 100A for connecting formwork panels 50, 50 together at a right angle has a symmetrical shape and comprises a generally triangular central section 1, one intermediate lever 3 connected pivotally to each of opposed sides of the central section 1, and an L-shaped holding arm 2 connected to the intermediate lever 3 by means of a link 4 that is pivotally joined with both the intermediate lever 3 and the holding arm 2. The central section 1 has two equal sides a, a which extend perpendicular to each other and at which the central section 1 engages with joint members 52, 52 of formwork panels 50, 50. Notches 1c are formed on each side a, and are adapted to bite into one joint member 52. Each side a of the central section 1 is thus capable of engaging very closely with the joint member 52. The holding arm 2 is also provided with notches 2c, so that the holding arm 2 also can engage very closely with the joint member 52.

Abstract: A structural member connection and method is disclosed for quickly securing/unsecuring pipe connections wherein the respective pipes are typically in orthogonal relationship with each other. The pipes to be connected may be of different diameter and/or cross-sectional shape. The connection includes at least one preferably fitted pipe strap member for each pipe and at least four fasteners with one fastener being located in each quadrant formed by the orthogonal intersection of two pipes. The pipe strap member is selected to mate to the diameter pipe used. In the alternative, U-bolt members selected to mate to the respective pipes may be used in place of one set of pipe straps. Tubular standoffs may be used in conjunction with the fasteners to provide adjustable clamping strength.

Abstract: A retractor support apparatus of the present invention includes a first support arm, a second support arm, and a first clamping member. The first and second support arms are each attached to a pivot ball. The first clamping member has a clamping bore that is adapted to receive and engage the pivot balls. The first clamping member retains the first and second support arms in a selected position when the clamp is in an open position. The first clamping member secures the first and second support arms in the selected position when the clamp is in clamping position.

Abstract: A concrete reinforcing bar connector is described in which first and second elongated resilient clip members are formed in a substantially semi-circular "C" shaped cross-sectional configuration. The first and second clip members include opposed open ends spaced apart along their respective center axes. Each of the first and second elongated resilient clip members includes a pair of longitudinal edges that are substantially parallel to their associated center axis and are spaced apart from one another to form a reinforcing bar receiving side opening. The longitudinal edges terminate in substantially radially inward projecting flanges. Inwardly projecting yieldable tabs are formed at each end of the first and second clip members. The tabs are angularly inclined toward the respective center axes of the clip members. The tabs are substantially diametrically opposed to the associated reinforcing bar receiving side openings.

Abstract: The invention is directed to a robot arm assembly including a plurality of elongated elements for attachment with a tool carried by the robot arm assembly. The robot arm assembly includes a robot arm, an arm clamp assembly clamped around the robot arm, and at least one elongated element clamp. The elongated element clamp is connected to a mounting pad on the arm clamp and carries the elongated elements.

Abstract: Clamping device for clamping a shaft to a base member including a base member, at least one clamping element spaced from the base member, a shaft having a longitudinal axis and extending along the base member between the base member and clamping element, connecting links connecting the clamping element to the base member, and a bolt for moving the clamping element into locking engagement with the shaft exerting a clamping action on the shaft which is parallel to the shaft.

Abstract: A clamping apparatus adaptable to connect together multiple members which may be variously arranged. The clamping apparatus includes a clamping plate having a first pair and a second pair of arcuate slots. Fasteners extend in a first direction through the first pair of arcuate slots and in a second direction through the second pair of arcuate slots, and the fasteners are slidable along the length of the slots. Clamping links are attachable to the fasteners to secure the multiple members to the clamping plate.

Abstract: A semi automatic twistlock for engagement with corner castings of ISO containers is operated by a cable. The cable extends around a shaft journalled in a housing, to rotate the cones that arc fixed to opposite ends of the shaft. The cable is extended or retracted though an operating channel and is biased to the retracted position by a spring coupled to the cable on an opposite end of the cable. The cable has a collar which can engage with a first or second stop formed in the operating channel or can remain disengaged in the fully retracted position to thereby permit selective positioning of the cones relative to the shaft.

Abstract: A tube clamp assembly is provided having a one-piece clamp or casting with four clamping and aligning lugs projecting from each side of the casting. The four lugs on the first side of the casting are symmetrically arranged at the corner of an imaginary square and have two sets of clamping and aligning surfaces that lie in planes perpendicular to each other. The surfaces are spaced apart a distance equal to the distance between the faces of a first tube so that the casting can embrace the tube sides in either a first position or a second position rotated 90 degrees from the first position. On the second side of the casting, four lugs similar to the lugs on the first side project the opposite direction and also define two sets of clamping and aligning surfaces.

Abstract: A clamp having an attachment mechanism for holding and positioning a second object attached to the clamp relative to a first object secured by the clamp. The clamp includes a clamping member for securing the first object and an attachment mechanism for holding the clamp to the second object. The clamping member includes a scrape preventive mechanism. The attachment mechanism includes a positioning member for positioning the second object relative to the first object without detaching the second object from the clamping member. The attachment member is hand operable.

Abstract: A coupler made from cylindrical tubing has elastically deformable ends. Each end has a bifurcation. The bifrcations are mutually perpendicular. One of the bifurcations has a walker coupling location with an orthogonal projection that includes an arc of a circle that has a diameter substantially equal to the diameter of a cylindrical horizontal member of a walker. The other of the bifurcations has an IV stand coupler location with an orthogonal projection that includes an arc of a circle that has a diameter substantially equal to the diameter of a cylindrical member of an IV stand.

Abstract: Protective member for metal knots or joints of scaffolds having horizontal and vertical tubular elements connected by a clamp at each knot, said protective member being made up of two parts (C1) and (C2) each of which consists of a hollow body (1) including a first pair of aligned coaxial semicircular seats (2) and two further semicircular aligned and coaxial seats (3, 4) whose axis is orthogonal to that of the first seats (2) and suitably spaced therefrom, the first seats (2) being intended to fit, with light elastic forcible engagement, the horizontal tube (5) of the scaffold knot, the other two seats (3, 4) being intended to fit the corresponding vertical tube (6) of the knot, or vice versa, and the two parts (C1, C2) of the protective member being mutually orthogonal, that is, rotated through 90.degree. with respect to each other, and located on opposite sides of the knot.

Abstract: A universal post connector is disclosed for interconnecting fence posts and braces either of which may be a pipe post or tee post at any horizontal or vertical angle and at any position along the length of each. The universal connector is also adaptable to tee posts and pipe posts of all standard cross-sectional sizes. The preferred embodiment includes a pair of sleeves and a pair of collars to interconnect two tee posts. At least one sleeve is slipped onto each tee post and fastened thereto at any position along the length of the tee post using a fastening device. A collar encircles each sleeve and is clamped at any position along the length of the sleeve. A coupler pivotally interconnects the collars and locks the collars at variable angles with respect to each other. In the case where a pipe post is used in place of a tee post, the collar can be directly clamped to the pipe post without using a sleeve.

Abstract: A rake head mounting structure for fastening a rake head to a rake handle, including a top retaining strip attached to the top side of the rake head and having a series of through holes, a bottom retaining strip attached to the bottom side of the rake head and having a series of studs respectively fitted into the through holes on the top retaining strip and secured in place by screws, a locating device fastened to the rake head by a clamping plate and having a T-screw secured to a through hole on the rake handle by a wing nut for permitting the front end of the rake handle to be secured to one stud on the bottom retaining strip by a screw.

Abstract: A clamp device 10 including both fixed 10" and moveable versions 10' attached to a portion of a ladder adjustment apparatus 110 for engaging the rungs 101 of a ladder 100. The device 10 comprises a lower generally C-shaped jaw member 20 having a recess 26 to receive an adapter member 50 to grasp the rung of the ladder 100. The lower jaw member 20 is pivotally connected to a portion of the ladder adjustment apparatus 110 to accommodate the angular orientation of the adjustment apparatus 110 relative to the rungs 101 of the ladder 110.