Abstract: In order to increase the value of a key, in particular a flat key, e.g. a car key, the head of the key is manufactured of noble metal and releasably connected to the shaft 1 of the key. For connecting the shaft 1 to the head 2 a snap-locking mechanism is employed, which is brought about by pins 8 adapted to be inserted through holes of the head 2 and the shaft 1 and a clamping plate 6 which is insertable into the head 2. The technical effect of the key, which is adapted to be assembled, resides in the fact that when the vehicle is changed the head may be interchanged for a key of a different vehicle type or a different lock. It is also possible for the noble metal to be reused for other purposes.

Abstract: A consolidation rod and plural members, such as pedicular screws and vertebral claws, have threaded sections extending from a head and fitted with a nut. A rigid fast connection between the rod and a member providing high adhesion is ensured by a fastener for clamping the rod owing to the screwing of the nut. The fastener comprises a first bore sliding on the rod, a slit opening into the first bore and narrowed by nut screwing, and a second bore passing through the slit and passed through by the threaded section. An indented plate, or a bar with threaded ends fitted with hooks transversely stabilizes two consolidation rods. A connector longitudinally stabilizes two consolidation rods.

Abstract: A technique is provided for joining wood members. A plurality of slits are formed on the end portions of wood pieces desired to be joined, and the end portions are abutted with corresponding slits in alignment to form a common surface. Each of the abutted wood end portions is fixed by temporary fixing means to a desired joining state. Thereafter, an adhesive agent is applied into the interior surfaces of the slits. Connecting plates, e.g., made of a reinforced plastic material coated with the adhesive agent, are inserted into the aligned slits. The adhesive agent is then hardened.

Abstract: A tambour door for a cabinet having a series of hinged, vertical panel members which are precluded from moving vertically one with respect to the other by a plug which coacts with slots defined in the hinge elements connecting the adjacent tambour elongated panel members.

Abstract: An interlockable connection system is disclosed herein for releasably joining a selected number of tiles together wherein each tile includes a plurality of receptacles adapted to snap-lock with a retaining element used in common with other tiles so as to provide a composite object composed of multiple tiles of various polygonal shapes. The retaining elements may be of many shapes and tiles may be of a variety of geometric configurations. The connection system provides convenient repeatable joining and unjoining of the retaining elements with the tiles and permits rotation of the joint through a large angle about the axis of the joined tile edges.

Abstract: A piston connecting rod assembly has a floating piston pin that is retained in centered assembly by a retainer clip having hooked fingers that lock into grooves in one end of the piston bore and hooked stringers that lock the piston pin in position after installation. The clip is formed of any suitable resilient material such as glass filled thermoplastic.

Abstract: Office furniture units, particularly desks, are fabricated panel members cut from standard pre-finished flat wood panels, their precise final configuration, by an NC controlled automatic router, including all holes, recesses and the like required in each panel member. The panel members have configurations which constitute the intelligence to assure their precise alignment as they are subassembled into furniture panel components by securing the appropriate panel members together in multiple layers, and for reception of two-part mechanical fasteners in appropriate positions to insure proper positioning of the panel components with respect to one another in the final assembly of the panel components into a functional office furniture unit.

Abstract: A slip joint connector for joining first and second structural elements together. The connector has a first body member attachable to the first structural element and a second body member attachable to the second structural element. The first body member has a male protuberance including a conical portion and the second body member has a conical receptacle for cooperatively receiving the conical portion of the protuberance. The protuberance includes a bridging portion for spacing the conical portion from the remainder of the first body member and the second body member has a well communicating with the conical receptacle for receiving the bridging portion. The conical male portion internally carries a nut while the second body member may receive a bolt through the receptacle to be threadedly received by the nut to secure the first and second body members tightly together.

Abstract: A mechanical rotary coupler for first and second coral shafts having slotted ends proximate one another, the coupler being formed of an elongated blade of resilient material longitudinally slit and folded on itself transverse to the slit to provide first and second resilient V-shaped strips connected by bridging portions at the ends of the blade, the strips respectively being adapted to engage the slots in the ends of the first and second shafts at regions on the strips spaced from the bridging portions.

Abstract: A divided sealing ring is provided for cable sleeves and the like is a hose-shaped sealing ring with cut ends joined by a connector element which bridges the contacting plane of the divided ring. Individual coupling elements are firmly mounted in the inside of the sealing ring and are mutually couplable to one another in an engaging fashion. As a result, optimum sealing conditions are created which are preserved even under mechanical or thermal stresses in the region of the seal.

Abstract: The multiple picture-holder described has square mounts (K1) of different sizes. Each mount comprises a transparent faceplate (1) and a backplate (2) fastened against it. The faceplate (1) has, printed on it, a mask (3) surrounding a rectangular window (1a). The rear side of the backplate (2) is divided into squares (2c), the outer of which are designed as click-in attachment fixtures (2c') for connecting clips (6). The connecting clips (6) have matching fixtures (6b) which engage in the attachment fixtures (2c') so that they are held in place. Both the distance between the centre-lines (M) of two adjacent attachment fixtures (2c') and the distance between the mount sides and the adjacent centrelines (M) have the same value (X). It has been found that suitable distances (X) are those which permit combinations of mounts (K1) designed for different standard photo sizes, such as 9.times.13, 10.times.15, 13.times.18 and 18.times.25 cm or 4.times.6, 5.times.8 and 8.times.

Abstract: A connection system in the form of an assembly of components which can be connected to one another relatively quickly. The connection system comprises first and second members and a connecting element for interconnecting the first and second members. The first and second members each having a face with a connecting aperture therein opening into an internal space within the member. The connection element comprises a bridge portion and a pair of spigot portions one at each end of the bridge portion and extending transversely of the bridge portion. In connecting the first and second members together, the spigot portions of the connecting element are inserted into the openings in the respective members and displaced with respect to the members such that each spigot portion is received and retained in portion of the internal space of the respective member.

Abstract: The subject invention provides a rock catchment barrier comprising a plurality of modules. Each module comprises a concrete base having a top surface, a post, a concrete barrier, an aperture for connecting the post to the top surface of the concrete base, a connector for connecting the concrete barrier to either side of the concrete base, and a fence panel for catching rocks, the fence panel being attachable to the post, wherein when the concrete base is connected to the concrete barrier, and the post is connected to the concrete base and the fence panel for catching rocks, a resulting module is formed. The rock catchment barrier provides protection for use in a rock excavation or scaling site where there is a need to stop rocks which are projected away from the site, such as when the rock excavation or scaling site is adjacent to a flow to traffic.

Abstract: The invention relates to a corner joint for building units of stone, especially of soapstone, for furnaces or the like to join two units (1, 2) cornerwise to each other by using a binding hook (3) extending from one stone unit (1) to another (2), which binding hook is arranged to sink into a groove (4) cut in an edge (14) of the stone units for this purpose, while joint pins (5) of the hook sink into borings (7) provided for them, the joint comprising a corner piece (8) separate from the units (1, 2) and having two joint surfaces (9, 10) forming an angle with respect ot each other, against which surfaces joint surfaces (11) of the units (1, 2) are arranged. To carry out the installation of the corner joint reliably and effectively, at least one end face (12) of the corner piece (8) is provided with a groove (13), into which a web portion (6) combining the joint pins (5) of the binding hook (3) is arranged to sink in order to lock the units (1, 2) and the corner piece (8) together.

Abstract: A device is disclosed for assembling frames and moulding frames, comprising a monolithic assembly piece (31) forming a double tenon and having the form of two identical circular truncated cones of a height substantially equal to the thickness of the workpieces (32, 33) to be assembled. Said assembly piece is fitted into blind bores (34, 35) of corresponding shape having on the edge junction surfaces of the workpieces to be assembled. It is intended to assembling, with or without bonding, joinery pieces of wood or other materials, such as mitered moulding frames. The mitering machine for implementing the assembly device (31) comprises a sealed casing (1) equipped with two circular saw blades (4, 5) perpendicular to each other and driven with a single electric motor. The casing is mobile vertically with respect to a working surface (3) equipped with fixing means (15, 16) for the workpiece to be cut.

Abstract: A plurality of frame members adapted to be joined one to another in a picture frame configuration. End portions of the frame members have "T" shaped slots, with adjacent slots comprising a combined "H" shaped recess. There are matching "H" shaped connectors which fit into pairs of adjacent slots to form the picture frame. The relative dimensions of the connector and the recesses are arranged so that limited rotational movement between adjacent end portions of the frame members are permitted so as to accommodate irregularities or skewing in the frame members.

Abstract: A decorative panel is for a cabinet, cupboard or the like which includes a plurality of edge frames having mitered ends. A central panel element has a plurality of edges and each of the edge frames has an internal groove for respectively receiving one of the edges therein. Each of the edge frames has a laminated surface material secured to an outer surface thereof. The laminated surface material on each of the edge frames has a terminal portion which is located within the internal edge groove. The edge frames surround the center panel element as the edges are respectively located within the internal edge grooves of the edge frames. Each of the edges of the center panel element secures the terminal portions of the laminated surface material within the internal edge groove. The mitered ends of adjacent edge frames have aligned slots in aligned areas of the outer surfaces thereof which include the laminated surface material.

Abstract: An endless belt formed by a connector and a finite length of hollow tubing or solid tubing with recesses at each end. The connector is characterized by a biting edge that has a larger diameter than the inside diameter of the tubing. It is readily flexible away from the direction of insertion of the edge of the tube. The biting edge is formed as a feathered or an erose outlying portion of the base at each of two gripping heads. Once the gripping heads are inserted tension on the tubing causes the feathered edges and adjacent portions of the gripping head to bite into the internal wall of the tubing and form an improved grip therewith.

Abstract: An interconnection system incorporating a sliding locking member facilitating secured interengagement between a purlin and rafter. The sliding locking member is constructed for slip fit engagement within an extruded section of the purlin and for flanged interlocking with a rafter disposed orthogonally thereto. The purlin further includes an overhanging lip for engaging a web region or vent leg or vent wall of a gutter of the rafter and preventing lateral movement in a first direction. The sliding member prevents movement between the purlin and rafter in second and third orthogonal directions to thereby provide a triaxial securement system that is effected by a single sliding member that is easily moved or slid into position.

Abstract: The disclosure relates to a furniture assembly having first and second components joined at right angles. The interior face of one of the components defines a groove which extends parallel to the line of intersection of the components. The groove serves as a "pilot hole" for fasteners which secure one or more brackets to each component. In one embodiment, the bracket includes perpendicular legs. An outwardly extending tongue is defined by one of the legs and is received in the groove. Gussets extend between the legs on opposite sides of the bracket.

Abstract: A decorative panel is for a cabinet, cupboard or the like which includes a plurality of edge frames having mitered ends. A central panel element has a plurality of edges and each of the edge frames has an internal groove for respectively receiving one of the edges therein. Each of the edge frames has a laminated surface material secured to an outer surface thereof. The laminated surface material on each of the edge frames has a terminal portion which is located within the internal edge groove. The edge frames surround the center panel element as the edges are respectively located within the internal edge grooves of the edge frames. Each of the edges of the center panel element secures the terminal portions of the laminated surface material within the internal edge groove. The mitered ends of adjacent edge frames have aligned slots in aligned areas of the outer surfaces thereof which include the laminated surface material.

Abstract: A chain link fence lower edging strip which comprises an extruded flat strip of plastic having a pair of centrally molded parallel groove that form precreased hinges allowing the extruded strip to be placed under a lower edge of a chain link fence and then folded upwardly into a U-shaped configuration. The outer top edges of the folded plastic strip are continuous molded fasteners that lockingly engage to a plurality of connectors passing through the openings in wire mesh of the chain link fence. Such a lower fence liner is useful in allowing grass to grow up to the wire mesh yet be readily trimmed by a twirling line trimmer without deleterious breakage of the twirling line.

Abstract: A mitered joint assembly having first and second furniture components joined by a bracket is disclosed. The components define interior surfaces. The interior surfaces have longitudinally extending pilot grooves. The pilot grooves engage one another. A bracket having legs is mounted adjacent the interior surfaces of the furniture components. The legs of the bracket each include at least one opening for receiving fasteners which extend through the openings. The fasteners are received in the grooves which act as pilot holes and as alignment means. The bracket has an inner surface and an outer surface. The inner surface includes tongue means consisting of projections which are received in the pilot grooves for aligning the components.

Abstract: A splicing device for concrete structural members includes two mating connectors positioned in axial alignment adjacent to each other that are interlocked by a key inserted through a keyway provided in the sidewalls of the connectors. Prestressing strands in the structural members to be spliced are fastened to the connectors by inserting them into axial holes located in the ends opposite the mating ends of the connectors, and thereafter wedging the strands within frustum-shaped cavities forming part of the holes, by means of frustum-shaped segments, or feathers, forced against the elements within the cavities. Apparatus and a method for installing the splicing device is also described.

Abstract: A coupler to connect spaced apart ends of a pair of aligned shafts in an odometer assembly, for example, the shaft supporting a permanent or total mileage counting device and another shaft supporting a trip counting device. The coupler has a central body with a thin guide portion extending therefrom for insertion between the shaft ends. Each end of the coupler has a pair of spaced legs defining an open ended slot adapted to receive a shaft end. One leg on either end has a resilient catch-tab for holding the coupler in position on the shaft.

Abstract: A shaft coupler particularly adapted for automated assembly to axially spaced ends of two axially aligned shafts such as are commonly found in an odometer assembly. The coupler has a main body portion with a guide portion adapted for insertion between the shaft ends and spaced legs at either end adapted for sliding insertion over flats formed on the shaft ends. The main body has a projection therefrom adapted to be gripplingly engaged by an installation tool. Also, the projection and tool define mutual nonsymmetrical portions for orienting the tool and coupler relative to the shaft so that the coupler may be installed thereto in a simple radially directed movement.

Abstract: Means for joining concrete piles (10) comprising a fixed end shoe (11) on each of the adjacent pile ends, and elements for joining the piles at the end shoes. Said elements include a number of guides (12) opening at the outside of the pile close to the adjacent pile ends, guides in one pile being located opposite to guides in the pile, and locking members (18), spanning the joint between the piles, which are driven from the outside into guides located opposite to each other in the pile ends to press said ends together by wedge action between guides and locking members. The guides (12) are dimensioned in relation to the locking members (18) so as to effect plastic stretching of the locking members after an initial displacement when the locking members are driven into the guides.

Abstract: A device and method for metal stitching of castings and similar structures utilizing a lock insert for strengthening and stabilizing the repaired location and sealing pins for completing the sealing repair of the casting. The lock insert comprises at least one center lobe which is coupled to a plurality of radially smaller locking lobes and a plurality of connecting lobes which are radially smaller than the locking lobes. Each lobe has a cylindrical body and is connected to adjacent lobes to form a locking groove, the composite structure being adapted for insertion into a slot within the repair site which conforms in cross section to the cross section of the insert lock. Insert lock geometry provides full sealing contact around the total body of the lock insert. A sealing pin is provided which includes a head and a threaded shank. The shank is comprised of sectional components including a program shear plane, an upper wedge member and a threaded shank section extending downward therefrom.

Abstract: The connecting arrangement is applied to each of two panels to be joined and has a lateral upright comprising at least one hollow support which extends over the entire length of the upright. Each support defines a substantially cylindrical seat and a passage which extends to the outside, which are respectively capable of accommodating a cylindrical portion and a web of a shaped connecting member. The member can be removably slid in with the portions thereof in the seats of two hollow supports of two contiguous panels. The connecting member is made in one piece from plastics material and the web may be flat or curved at variable angles. This permits the arrangement of contiguous panels in a coplanar configuration, at 90.degree. to each other or at 120.degree. to each other. The connecting member may be fixed in place after it has been slid in by members blocking the ends of the sets.

Abstract: A bed frame ideally suited for supporting a water mattress or the like comprises first and second frame members including vertically disposed and horizontally spaced pedestals having a pan portion at the upper end thereof. The first and second frame members are secured together to form the frame and are preferably comprised of a molded plastic material. Upstanding side walls are provided at the periphery of the pan portion to form an enclosure for the foam cushions, bolsters or mattress. The mating surfaces of the first and second frame members are provided with a seal so that the frame defines a water-tight enclosure for the water mattress or the like.

Abstract: There is provided a shelving system for use in storage compartments, which shelving system utilizes slidable horizontally extending bracing members which by creating a static frictional force between the shelf and the compartment walls holds the shelf in place and for heavy loads, the same shelving system which utilizes slidable horizontally extending bracing members engaging with vertical columnar members whereby free access is provided to the shelves with elimination of any outboard columnar members or legs.

Abstract: A wall structure having vertical end members and a vertical intermediate member. A set of horizontal members are located between the vertical members and are interconnected by horizontal splines. A vertical spline engages the ends of the horizontal members and the vertical members. A top spline engages the top horizontal member and the top ends of the vertical members. A top cap spanning across the vertical intermediate member engages the top spline. A spline tab engages slots in adjacent horizontal members and the vertical slot of the vertical member adjacent to the horizontal members.

Abstract: The clip fastener comprises two mutually substantially perpendicular walls forming a corner and two ribs protruding perpendicularly with respect to the walls. The ribs are arcuate, and each have an intermediate portion which is located at a greater distance from the corner than end portions thereof.

Abstract: An invisible connection for faced parts, in particular for furniture. The adhesive for the connection is hermetically enclosed in a sheath consisting of flexible or easily breakable material. The sheath of adhesive is introduced as an independent component into the borehole of the connection, the sheath being destructible on driving-in or pressing-in the connecting member.

Abstract: A joint structure for channels used in agriculture, industry etc. which is constructed for connecting a number of concrete units to each other. The joint structure strengthens the resistance of channel both to sinking and upheaval.Neighboring concrete units are interconnected by connector plates and two fasteners passing through fastener holes formed on each end of the connector plate. An eccentric washer plate fitted on the fastener is urged against both a stop flange disposed between the fastener holes and another stop flange disposed at the lateral outside of the fastener hole of the slot type.

Abstract: A solder-free circuit base plate made by changing the two integrated halves of conventional circuit base plate to two separate pieces side-exchangeably and removably joined by means of butterfly tenons and mortises made in the edges of different width so that different spaces and distances between the inserting holes can be arranged for making full use of the inserting holes and for inserting of different sizes of electronic parts in addition to the round hole design which smooths the insertion, prevents the hole from deforming and enhances the efficiency.

Abstract: The specification discloses a pool wall assembly including first and second pool wall panels and a brace supporting the panels. Structure is included for securing the brace to only the first panel so that the first panel and brace may be aligned together prior to the securement of the second panel. Structure is also included for securing the second panel to at least one of the first panel and the brace. An anchor assembly secures the brace in position. The anchor assembly includes a stake which extends through and slidingly engages the brace and a wedge, telescopically received in the stake, which can be moved with respect to the stake into forcible engagement with the brace to maintain the brace in position. Each panel includes an integral bead extending from the lower portion of its face to define the line to which the pool side wall overlap extends. Also disclosed is a method of erecting a pool wall using the structure disclosed.

Abstract: A valve for directing corrosive fluids or the like from port to port without contamination includes beam members adapted to interconnect a plurality of valve bodies in stacked and interlocked relation, a control mechanism for moving the spool of a spool valve to a centered or off position, and a spool that makes possible an arrangement whereby a spool valve can be used as an aspirator that may be connected in a discharge conduit of a system from which caustic, abrasive or otherwise harmful fluid must be discharged.

Abstract: An improved floor board construction for a truck or trailer has a floor boards which are each formed with a groove extending longitudinally of and opening laterally from each side edge thereof. The grooves of the butting side edges are aligned with one another to form a passage extending longitudinally of the floor boards. An elongated strap mounted in said passage and extends longitudinally thereof. The strap projects laterally into each oppositely disposed groove. A plurality of mounting passages open through the floor boards, strap and underlying cross members. A mounting screw is threaded into each mounting passage of said strap and its associated mounting passage of said cross member to secure said floor boards and mounting strap with respect to said cross members.

Abstract: This invention relates to the formation of a resilient retention rod or pin that inserts intermediate a pair of liner segments of a tumbling or casting shake-out unit, and which rod is formed having a series of inherent angular bends provided along its length, and being constructed of resilient material, so that as the rod is forcefully inserted in place for retaining a pair of adjacent liner segments together, the tendency of the resilient rod to achieve its steady state angularly bent condition has a tendency to continuously force a pressure against adjacent segments to assure their tightness in interfitting together for forming the liner or cylinder for a casting shake-out unit or the like.

Abstract: A two-piece cutting edge construction wherein a plurality of adapters are mounted on the mold board each having releasably locked thereto a cutting edge; the sidewalls of the adapters and cutting edges being recessed for the receipt of longitudinally (forwardly/rearwardly) stabilizing pins; the lock for releasably coupling the cutting edge to the adapter including two legs resiliently inner connected by a compression spring with the lock being insertable and removable by forces extending transversely of the forward/rearward mounting and unmounting direction of the cutting edge.

Abstract: Connection means for connecting two components such as conveyor channel sections or guide sections includes an elongate connector. The connector is insertible into laterally-open recesses formed in coupling elements attached to the two components. The laterally-open recesses define an elongate aperture which is slightly longer than the connector so that the connector is received within the aperture with a predetermined amount of axial play. A retaining device prevents axial movement of the connector within the aperture by filling up the space available for said predetermined amount of axial play. The retaining device comprises a C-shaped resilient member and a wedge-shaped member. The resilient member is made of corrosion-resistant, resiliently-deformable plastics material, and the wedge-shaped member is made of metal. The wedge-shaped member can be driven into the resilient member to expand the resilient member against the walls of said space, thereby fixing the retaining device in position.

Abstract: Hollow wind turbine blades and the like comprising abutting blade sections, with nose forming strips and converging walls forming a tail section connecting with the ends of the nose forming strips, and a method of fabricating them comprising machining the facial end walls of the abutting blade sections to provide a precise alignment thereof providing a flush joint when the sections are butted together, adhesively bonding the blade sections in abutting relation and permitting the bond to cure, cutting communicating splice receiving slots in the abutting nose forming strips, and inserting adhesively bonding splice inserts which fit the slots in place in the slots.

Abstract: A modular room divider system has plural upright juxtaposed panels having cylindrical anchor receiving apertures disposed about upright axes in the panels top and bottom surfaces. A coupling assembly has a pair of spaced apart anchors mating with the anchor apertures. Threaded portions having opposingly directed right and left hand threads extend inwardly from the anchors and are centrally engaged by an internally threaded sleeve having adjacent right and left hand threaded portions. The sleeve has a square prismoidal exterior surface and is traverseable by a notched wheel having a mating central aperture. A channel extends from the anchor apertures to the edge of each channel.In use, two panels are assembled by placing them in juxtaposition. The coupling assembly is placed in alignment over the panels, the anchors being lowered into the anchor apertures and the threaded portions over corresponding channels.

Abstract: The invention provides a reliable connection between chutes of a heavy-duty chain-and-flight conveyor with considerable side loading.The connecting member is a shaped link, the shouldered end portions of which are coupled with the walls of the chutes to be connected with suitable yokes is characterized in that the inner flanged walls 13 and 14 of the catch 8 and securing end portion 9 of the connecting member 1, as well as the walls 15 and 16 of the yokes 2 and 3 co-operating with the latter are inclined relative to the plane 17 of the partition of the chutes 6 and 7 and convergent toward this partition plane. The catch 8 is mounted in a through hole 10 of the catch yoke 2, the strongly inclined wall 11 of the said hole 10 being so situated that it enables the catch to be introduced only in a case when the connecting member 1 has been inclined relative to the conveyor axis.

Abstract: A variable rack stair rail assembly includes a hand rail and a shoe rail. A plurality of elongated balusters extends intermediate the shoe rail and the hand rail. Means are provided for joining each of the balusters to the hand rail and the shoe rail. The hand rail and shoe rail may be channel-shaped. The means for joining comprises an elongated first member and a generally sleeve shaped second member. The first and second members are dimensioned and configured for engagement. One of the members is disposed in cooperating relationship with one of the rails and the other of the members is disposed in cooperating relationship with one axial extremity of a baluster. Each baluster may be joined at each axial extremity in substantially the same manner. One axial extremity of each sleeve shaped member may have the contour of a section of a cone.

Abstract: An articulable training device, particularly adapted for continuously reinforcing proper stroking or serving techniques necessary to successfully play various racquet sports such as tennis, is disclosed herein and comprises a tennis racquet having an elongated handle member and a member which includes a ball rebounding surface or net face at one end thereof. The device for connecting said handle and said member having a ball rebounding surface for free relative pivotal movement about an axis transverse to the longitudinal dimension of said handle and generally parallel with said ball rebounding surface. Further included are means for limiting the range of relative pivotal movement of said members to thereby minimize the likelihood of accidental injury to the player using the racquet.

Abstract: A table that may be readily assembled or disassembled is formed by a plurality of pairs of legs which are joined to each other by elongated locking strips received in longitudinally extending channels formed in the legs and opening at throat portions into mutually engaging mitered surface portions of the legs. The throat portions of the channels are of a reduced dimension, and the locking strips are provided with resilient deformable tabs received in the channels to prevent separation of the legs of each pair. The leg pairs are interconnected by horizontally extending struts which are fixed to two legs of each adjacent pair of legs. The table top rests on the legs and has recessed depending portions received within the space enclosed by the legs and struts to prevent transverse movement of the table top while at the same time preventing the legs of each pair from moving about their locking strips.

Abstract: A repair coupling for flexible electrical conduit comprised of helically wrapped loosely interlocked metallic strip, said coupling being characterized by its initially enlarged arcuate cross section adapted to be constricted into tube form, the interrupted perimeter of the initial cross section providing an opening longitudinally coextensive with the coupling body for the lateral reception of wires, the body being reformed to have a continuous circumference of predetermined diameter for threaded engagement into the conduit sections joined thereby.

Abstract: A mitre joint for picture frames and the like, wherein abutting portions of two members have pockets milled therein that are spaced a predetermined distance inwardly from their abutting surfaces. In addition, channels connect the pockets with the abutting surfaces. A foreshortenable fastener comprising a four sided hollow body, having front, back, top and bottom sides, is positioned in the adjacent channels, with the front and back sides positioned in the pockets. The front and back sides are wider than the top and bottom sides, which extend through the channels, and a screw extends through a hole in the top side into threaded engagement with the bottom side to bow the bottom side inwardly when the screw is tightened. This foreshortens the fastener and pulls the mitre joint together.