Abstract: A panel connecting device consists of a first member having a base, at least two successive extending elements extending from the base, each of the elements having a thinner portion near the base and a thicker portion at the end of the element. In between the thinner portion and the thicker portion may be an flange portion which gradually widens in the direction of the thicker portion. Thus, a cavity is formed between adjacent extending elements. The cavity is dimensioned to receive an element the size of the extending elements. The panel connecting device also consists of a second member that is substantially similar to the first member.

Abstract: A coupling for transferring power from a drive shaft to a driven shaft includes a first coupling member, having a substantially cylindrical body, with a cylindrical bore at a first end, longitudinal key arrangement within the bore for being rotatably driven by a keyed motor drive shaft, and a solid cylindrical portion at a second end having a distal face with an alternating plurality of longitudinally projecting drive lugs and longitudinally recessed pockets; and a second coupling member for installation on a driven shaft having a substantially cylindrical body with a first proximal face, providing a non-cylindrical socket means for receiving and for drivably engaging the driven shaft, and a second distal face with an alternating plurality of longitudinally recessed pockets and longitudinally projecting drive lugs, the longitudinally projecting drive lugs of the first coupling member fitting into the longitudinally recessed pockets of the second coupling member, and vice versa, to complete the coupling.

Abstract: The invention comprises an end joiner for continuous belts for conveyors comprising a hinge of a plastic material joined to a supporting fabric fused into the continuous belt by vulcanizing. The hinge is formed by two equal hinge halves, each made up of members that can be linked in rows. Each linkable member consists of at least one ring fitted with a male coupler and a female coupler, the two couplers lying opposite and coaxial to each other. When joined together, the couplers form a rod. In the assembled hinge, the rings of the half-hinges are interleaved together with their openings substantially aligned, with a pin passing through all of them. The supporting fabric is fitted with a band with no warp threads, situated at different distances from the edges of the supporting fabric.

Abstract: A modular cable protection system which is intended to protect electrical cables, fluid hoses and data cables from externally caused physical or mechanical damage. The modular protective components may be detachably interlocked with other structural components so as to form a suitably sized cable protection system. The components may be constituted of molded plastic material of high rigidity and strength, and are adapted to be selectively joined to other components as required to provide the necessary protective array in a simply assembled and decorative manner which not only fulfills the desired protective tasks but which is also authentically pleasing in appearance.

Abstract: A flange driver for a cardan joint with a spider comprised of two pins mutually offset by 90.degree. and two essentially same-design yoke halves. Each yoke half includes a base and a bearing part with a bore contained in it. Both yoke halves abutt along an interface which is essentially perpendicular to the axis of a first spider pin supported by the yoke. Both yoke halves feature a system for torque transmission from the shaft adjoining the joint to the flange driver and to the spider or in reverse order. Both yoke halves of the flange driver are joined to each other positively. Each yoke half features on its interface a toothing directed toward the respective complementary interface. The flank lines of the toothing or a plurality of tangents to the flank lines, projected in a common plane with the yoke axis, extend at an angle greater than 0.degree. to smaller than 180.degree. relative to the yoke axis.

Abstract: A connector assembly for connecting components of knockdown furniture includes two connector blocks which are rigidly mountable on the furniture components, and a tapered pin which interconnects the two connector blocks. Each connector block includes parallel tongues which are rigidly supported on a base plate in spaced apart relation. The tongues of each connector block are positioned in the spaces between the tongues of the other connector block. Each tongue has a tapered pin-receiving opening which is aligned with the openings of the other tongues. The transverse dimensions of these openings decrease progressively from one tongue to another. The tapered pin extends through the pin-receiving openings and it frictionally engages the tongues with sufficient friction to prevent movement of the tapered pin relative to both connector blocks.

Abstract: A snap tab fastener connects first and second ventilation system housing members together. The fastener includes a tongue and groove assembly and a tab and loop assembly. The tongue and groove have a bit of flexibility so that an air tight connection is maintained during minor separation of the two. The tab engages the loop to lock the two components together.

Abstract: A device, such as a combination stool and storage/tool box adapted for use while placed on a floor. The device features a number of rubber stoppers to prevent inadvertent sliding of the device across the floor. To hold the stoppers in place, the device includes openings in the lower portion of its legs. Each of the openings accommodates one of the stoppers and is defined by a number of semi-rigid retaining members which extend inwardly toward the center of the opening. The opening and the retaining members are dimensioned so that when the stem of the stopper is forced through the opening the retaining members exert forces on the stopper tending to retain the stopper in place substantially rigidly connected to the device.

Abstract: The fastening of two parts (1 and 3) to one another, e.g. of a tool or workpiece, on a holder provides that the two parts (1 and 3) to be fastened together have adjoining fitting areas (4 and 5) when in use and are braced against one another by fastening means, e.g. a single fixing screw (2), extending diagonally or at right angles to the contact plane of these fitting areas (4 and 5). In this case, in addition to the fitting areas (4 and 5) fixing the reciprocal axial position in Z direction, fitting projections (9) are provided on the one part and fitting recesses (10) on the other part which prevent the parts (1 and 3) connected and braced with one another from shifting diagonally to the fastening means within the contact plane of fitting areas (4 and 5) and which center the two parts (1 and 3) diagonally to this contact plane in X and Y direction so as to fit accurately.

Abstract: A ratchet link having a cylindrically-shaped tongue at one end, and an offset C-shaped socket at the other end defined by a pair of opposing, spaced-apart, resilient arcuate prongs which extend outward from the device away from the tongue end. Spaced-apart teeth are provided along the inside surface of the socket and along the outside surface of the tongue. When the tongue of one link is placed into the socket of another link, the teeth intermesh wherein the teeth in the tongue fit into the interdental notches between the teeth in the socket, and the teeth in the socket fit into the interdental notches between the teeth in the tongue. The tongue and socket pivot in discrete positions, while lateral movement is prevented by the engagement of a ring on the tongue that mates with a slot on the socket.

Abstract: A support arm for attaching a basketball backboard to a pole is disclosed. The support arm includes two support members configured with flanges extending generally along a longitudinal axis of the support arm. The flanges have a toothed configuration in the shape of a square wave which includes a plurality of tabs and recesses. The support members are capable of mating engagement with each other wherein the tabs along each of the flanges of the first support member engage the corresponding recesses of the respective flanges of the second support member, thereby disposing engaged flanges at an angle with respect to each other. The support members are configured with a substantially C-shaped cross section. The support members are attached to each other with bolts, thereby eliminating the need for welding. Means are also provided attaching one end of the support arm to the basketball backboard and the other end to a pole.

Abstract: A connection assembly includes at least two components each formed with a body extending along a respective axis and a respective plurality of angularly equispaced alternating tongues projecting radially from the body and grooves for meshing with the tongues and grooves of the other component upon relative angular displacement of the components, so that the components are not able to be separated in a direction transverse to the axis upon the relative angular displacement.

Abstract: A ratchet link having a cylindrically-shaped tongue at one end and a C-shaped socket at the other end for use in an articulating coupling system. The socket is defined by a pair of opposing, spaced-apart, resilient arcuate prongs which extend outward from the device away from the tongue end. The inside radius of the socket is substantially the same as the outside radius of the tongue, so that the tongue can be inserted into the socket of another link. The socket includes a narrow centrally positioned slot along its circumference, and the tongue includes a narrow centrally positioned ring extending outward along its circumference which is received by the slot when the tongue is inserted into the socket. A plurality of spaced apart teeth are provided along the inside surface of the socket and extend between the faces of the device in a substantially perpendicular orientation to the plane of the faces. Similar teeth are located along the outside surface of the tongue.

Abstract: A leaching chamber for burial in the ground includes non-symmetrical corrugations extending laterally across the leaching chamber. Each corrugation has a ridge and a shoulder with the ridge being higher than the shoulder and sloping down from the ridge to the shoulder. Additionally, the ridge of each corrugation is also wider than the shoulder. The corrugations are oriented relative to each other such that the ridge of each corrugation is adjacent to the shoulder of an adjoining corrugation. Identical chambers are joined by mating flanges, each flange including a series of flange members alternating about a common reference curve, which defines a matable surface of each flange member.

Abstract: A torque transmitting, bicycle frame coupling which connects to the frame tubes, replacing a portion of those tubes and having teeth on their engaging faces. Proper installation of two such couplings allows up to a 25 inch men's style bicycle with up to 700C (26 inch rim diameter) wheels to be cut in two pieces so that it fits in a suitcase with a combined height, width and girth measurement no larger than 62 linear inches and then be put back together with no loss of original frame geometry or stiffness. Each coupling is actuated, pulling the bicycle pieces together and joining them through use of specialized teeth under compression by a threaded lug, a removable-shoulder lug with a removable shoulder and a threaded coupling nut. The removable shoulder makes the nut and shoulder replaceable, and makes possible an additional shoulder on the tube connecting end of the removable-shoulder lug to keep the nut from slipping onto the frame and scratching the paint.

Abstract: A method and apparatus for transferring a functional package from a jack-up rig to a fixed platform is provided. A functional package comprising a drilling package, a construction crane, a rocket launch module, or other heavy apparatus may be directly placed upon a fixed platform without exceeding the load bearing limits of a fixed platform. This placement occurs using a cantilever beam that is spliced so that it may be separated into a shuttle portion and a base portion to reduce the weight effect of the cantilever beam upon the fixed platform. The cantilever beam may be provided with a new and unique splice section that permits detachment of the distal shuttle portion upon which rests a functional package. The distal shuttle may be deposited onto a fixed platform. The distal shuttle may be reattached after operations are completed for transfer of the functional package to another location.

Abstract: At an outlet of a heating, ventilating or air conditioning system air passes from the ducting through a plenum chamber, a damper provided with a set of blades which are movable between open and closed positions and a diffuser which directs the air in a desired direction. The plenum chamber is provided with internal vanes which act to guide a flow of air through the chamber between its inlet and outlet. The damper defines a plurality of predetermined blade positions between the open and closed positions and a resilient finger and teeth for retaining the blades in a selected one of said predetermined positions. The damper has a frame comprising a plurality of discrete frame elements interconnected at each corner joint of the frame by a friction fit pin passing through interdigitated projections on the frame elements.

Abstract: The connection for releasably joining two drum components of a hydraulically-actuated double friction disc clutch includes first and second drum components having circular cylindrical surface directed substantially axially, one overlapping the other. The inner component is formed with a catch groove or two catch recesses and the outer drum component includes catch projections, offset mutually 180.degree. and adapted to become locked within the catch groove. The outer drum includes tabs at an axial end adapted to fit within recesses formed on the periphery of the inner drum between catch projections. The drums are driveably connected by applying oppositely directed axial force sufficient to snap the catch projections into the catch groove. The drums are disassembled by elastically deforming the outer drum until the catch projections clear the catch groove and then applying an axial force that separates the drums.

Abstract: A working cylinder which operates without a piston rod, comprising a cylinder tube, a piston which is displaceable therein and is provided with a pulling means, and a force transmission element which is connected with the pulling means and guided in axial displacement on the cylinder tube. In order to minimize the mounting work for the external attachment of the pulling means and at the same time increase the dependability of operation, the pulling means (1) is provided on the ends thereof connected to the force transmission element (2) with clamping pieces (3) which are provided with a toothed surface (5) on at least one outer side (4) and the force transmission element (2) is provided with a correspondingly toothed surface (6) against which the side (4) of the corresponding clamping piece (3) having the toothed surface (5) can be pressed via a pressing element (7). The corresponding toothed surface of the force transmission element (2) is longer than the clamping pieces (3) to allow for adjustment.

Abstract: A dado joint is provided between first and second members and includes at least one elongated groove formed in the first member of a constant width and constantly varying depth in the likeness of a shallow, smoothly curving sine wave. The second member includes a marginal edge tongue of constant thickness for mating with and snug reception within the groove, the tongue including a sine wave likeness longitudinal contour corresponding to the aforementioned sine wave and being seated and secured in the groove.

Abstract: A multi-piece gasket utilizes pieces of elongated gasket material that have ends terminating in a number of longitudinally extending fingers with grooves disposed therebetween. The mating of the fingers and grooves defines a gasket joint and a seam line having a length greater than twice the width of the joined gasket pieces.

Abstract: A rotation transmitting mechanism for a steering wheel for use in an automobile. A rotational member of a coupling device has projections extending radially inwardly, while a cancel cam has corresponding U-shaped cutouts to receive the projections, respectively. Each projection has a tapered section tapering off to a bottom end thereof. A peripheral face forming each U-shaped cutout is rounded so that an outer surface of the cylindrical cancel cam is connected with an inner surface by a rounded perhipheral face forming the cutout.

Abstract: The present invention provides solid wood paneling formed of beveled, solid wood planks having a uniform, standardized length. At least some of these planks are made up of shorter, random length boards that have been joined into longer, uniform length planks. All four edges of each of these individual boards are beveled so that when they are assembled into a plank, the plank will include a bevel which accentuates the location of the joint between the individual boards of a plank. Such a solid wood paneling is less expensive and easier to install than standard solid wood paneling, yet achieves the same distinctive look of standard paneling with a plurality of random length individual boards which are individually applied.

Abstract: A system for mounting various pieces of equipment at selected locations along the length of a support member. A clamping unit, releasably mounted on the support member for adjustable positioning of the clamping unit, is fixed in place by the action of locking means which draw a protrusion on a clamping piece into intimate contact with opposed contact surfaces in a groove running along the length of the support member. The opposed contact surfaces of the groove form an acute angle transverse to the length of the support member. With the support member formed as an open channel, cables from the equipment being mounted can be positioned within the channel and clips snap-fitted into the opening in the channel close off the opening in the channel at selected locations and form smaller openings through which the cables pass.

Abstract: A marine propulsion lower unit including spaced first and second sides, first and second water inlet openings respectively located in the first and second sides, a water passage including a laterally extending branch extending between the first and second water inlet openings, and first and second water inlet screen members including respective water inlet screen portions extending across the first and second water inlet openings, and respective first and second portions extending integrally from the water inlet screen portions and having releasable inter-engaging mechanisms for retaining the water inlet screen portions in the water inlet openings.

Abstract: A fitting for the connection of construction elements, such as wooden construction elements. The fitting is made of two identical fish-belly shaped fitting components which insert into corresponding grooves in the construction elements. Each fitting element has harpoon-like webs to engage the construction elements. Opposite to the fish-belly portion of the fitting element is a blade and upon the blade is at least two hook heads spaced apart by at least the width of one hook head. In the connected position, the fitting components face each other and the two complementary fitting components grip one behind the other at the hook heads.

Abstract: A geared motor comprising a rotating axle rotating in accordance with the rotation of a rotor, a gear rotating axle for outputting from the rotating axle speed reduced rotation, and a flexible coupling consisting of a first coupling disposed on the rotating axle of the rotor and rotating together with the rotating axle and the rotor, a second coupling disposed on the gear rotating axle, and rotating together with the gear rotating axle, a rubber damper disposed between the first coupling and the second coupling for transmitting the rotation of the first coupling to the second coupling, a thrust-force bracing member disposed between the rotating axle of the rotor and the gear rotating axle and in contact with the rotating axle and the gear rotating axle, for transmitting thrust force from one of the rotating axle of the rotor and the gear rotating axle to the other of the two arranged so that even if thrust force acts on the rotating axle of the rotor or on the gear rotating axle, the thrust force does not act

Abstract: The invention discloses a liner hanger assembly which is mechanically attached to the component to which the liner is secured, thereby allowing hanger materials to be selected based on other than weldability considerations, and allowing the hanger to be removed and repaired when worn or damaged.

Abstract: Two free-standing tubular columns (1, 2) having slots (3), parallel to the longitudinal axis of the tube, for locating extension arms or supporting arrangements are connected to one another according to the modular construction principle by means of a cross connection (4). The cross connection (4) of two connecting tubes (5, 6) contain, at their ends, one attachment housing (8) each, in which, on the one hand, these two connecting tubes (5, 6) are held and, on the other hand, a clamping bracket (13) having catch projections (16) is accommodated. The catch projections (16) are intended for engaging into the slots (3) of the tubular columns (1, 2). Each attachment housing (8) is provided at the front face with a surface contour complementary to the outer contour of the colunm, and a clamping screw (17) preloading the clamping bracket (13) against the attachment housing brings about an applied-pressure connection between the attachment housings (8) and the tubular columns (1, 2).

Abstract: Joints are provided between the members of a pair of elements, such as a pair of concrete tunnel lining segments which are secured together in compression by a fastening arrangement with a gasket between the end faces of the segments. The gasket has a multiplicity of spaced recesses or apertures to prevent the gasket from creating a surface tension in the end faces when the joint is subjected to compression.

Abstract: A golf club comprises a golf club head including a plug member containing a threaded axial bore. An elongated golf club shaft, containing an axially extending bore, has a connector portion at one axial end, and a gripper portion at the other axial end. A threaded rod is retained on the connector portion of the shaft, and is threaded into the axial bore of the plug member of the head for operatively connecting the shaft to the head.

Abstract: A wing skin is usually mounted to a support structure by using metal fasteners which cause high stress points and potential leakage points. The invention utilizes projections formed in a wing skin to mate with recesses formed in a support substructure which, when positioned together, form interdigitations which prevent sliding displacement of the wing skin. A plurality of sliding bars transversely pass through the interdigitating sections to maintain an interlocking relation. The transversely oriented bars enable the use of the invention with contoured wing skin structures.

Abstract: Improper assembly and/or dissociation due to improper handling of a tank 10 to header plate 14 joint in a heat exchanger is avoided through the use of a retaining strip 50 having fingers 54 receivable in slots 36 in an upstanding flange 26 surrounding a sealing surface 28 on the header plate 14. The fingers 54 are provided with hook-like formations 60, 62, 64 which lodge behind a surface 44 of the flange 26.

Abstract: Modular seating comprises flat side frame members including chair frames and bench and table frames, with each frame including means to bolt seats and tables to the sides thereof, the units being constructable as free-standing components or as interconnected seats, tables, and benches. The frames are formed of laminations having overlapping laminated joints wherein laminations of intersecting members extend all the way through the joints. The back rest has a frame without a rigid frame member at the top of the back rest.

Abstract: In a collapsable elongated article such as a sailboard, the several sections are joined together at respective double chevron surfaces and maintained together by a suitable clamping device. The double chevron surface is used to prevent relative movement in two axes, and the clamping device is used to retain the sections together and thereby prevent relative movement in the third axis.

Abstract: A double isolated electrically shielded screen room in which all side, ceiling and floor panels thereof are provided with peripheral grooves. A tongue strip matingly engages the grooves in adjacent panels and clamping is completed with bolts. This construction minimizes the number of individual elements required for the screen room and facilitates assembly and disassembly. To reduce the possibility of the wood frame members being split, they may be partially cut through at the base of each groove. Alternatively, the frame members could be fully cut through, resulting in two individual pieces, permitting more freedom in putting the shielding on each panel.

Abstract: An adjusting device permitting the operator of a planter to easily and accurately adjust the depth of planting by vertically adjusting the height of the planter frame through use of an adjustable spacer device in the support for the gauge wheels. The adjustable spacer has two main parts, one of which has a multiple series of axially spaced steps affording selective adjustment of the planter frame relative to the ground.

Abstract: An oscillator for imparting oscillation at a high frequency to respiratory gas in a pneumatic circuit of a high frequency oscillatory ventilation apparatus for artificial respiration includes a cylinder unit mounted on a base plate and including a cylinder, a piston rod slidably extending through the cylinder along an axis thereof, and a piston fixedly mounted on the piston rod and received in the cylinder for sliding movement therealong for applying oscillation to the pneumatic circuit. A first engaging member, mounted on a reciprocable output shaft of a motor mounted on the base plate, engages a second engaging member mounted on the piston rod to connect the output shaft to the piston rod to reciprocally move the piston, the engagement being made in a manner to allow the second engaging member to move out of engagement with the first engaging member in a direction perpendicular to an axis of the piston rod.

Abstract: Improved lock assemblies for locking two construction components together. A pair of tandem male lock assemblies each includes a rigid pin which is reciprocable with respect to a surrounding male socket between an advanced position and a retracted position. Each male lock assembly includes a transversely reciprocable lock adapted to lock the pin in at least one of, and preferably both of, its two positions. All parts of each lock assembly are retained against separation. The locks of the tandem male lock assemblies are connected for joint movement and are adapted so that, when moved from release positions to pin-locking positions, one lock engages its respective pin before the other lock engages its pin. A cooperative pair of tandem female lock assemblies may have identical jointly movable locks.

Abstract: A bearing carrier for a pull-type clutch, and which forms part of the clutch mechanism assembly, has a crenellated rim provided with longitudinally projecting tooth-like portions, cut-out portions being provided between consecutive projecting portions. A separate tubular member, forming part of the clutch control mechanism, has a correspondingly crenellated rim provided with longitudinally projecting portions and cut-out portions between consecutive projecting portions. One of the crenellated rims has a peripheral groove in which is disposed an expandable resilient ring, and the other crenellated rim has a corresponding peripheral groove and is provided at the leading edge of its projecting portion with a ramp for expanding the ring when the one of the crenellated rims is pushed into the other crenellated rim for coupling the bearing carrier with the tubular member during assembly of the bearing carrier with the tubular member.

Abstract: A corner joint between mitered jambs of a door frame, with claws provided in the miter region of the jamb ends. The claws are designed as tongues cut out of the jambs. The tongues are provided with abutment elements which engage behind the respective adjacent jambs. Further, the tongues and their abutment elements are offset relative to each other and so dimensioned that in assembled state, they engage and snugly fit between the tongues of the other jamb. The manufacture and assemblage of the frame jambs is thereby considerably simplified.

Abstract: A retainer for releasable attachment of an insertable bar, strip, or the like to a support comprises a supporting channel mountable on the support, engageable in the supporting channel a retaining rail, in which the insertable bar, strip, or the like is detachably secured, and a first means for releasable attachment of the retaining rail to the supporting channel provided in the supporting channel. The retaining rail has two longitudinal flanges whose free edges have directed inwardly a plurality of protruding members with which the insertable bar, strip, or the like is held in the retaining rail.

Abstract: A driver bar assembly for coupling together a shaker head 12 and a slip plate 34 carrying a test piece 60 to be vibration tested, the assembly comprising a driver bar 14 having a laterally extended locus of intersection (L-L, P-P) with the slip plate in the slip plate plane of test movement, and fastener means comprising a rigid pin 50 extending laterally within the locus of intersection in slip plate and bar interconnecting relation for transmission of shaker head vibration to the slip plate through the pin.

Abstract: An improved continuous pavement process for a bridge surface comprises the steps of arraying a plurality of bridging metals in a hollow space provided between adjacent floor slabs of a bridge. Each of the plurality of bridging metals comprises a generally U-shaped member, which extends in the direction of a longitudinal bridge axis with its tip end opened and includes pieces being bent 180.degree. and extending outside from the upper edges of the base portions of the respective side pieces thereof so as to form an inverse U-shaped cross-section jointly with the corresponding side piece, in such manner that a side piece of the generally U-shaped member of one of adjacent bridging metals may loosely and movably fit in the inverse U-shaped cross-section of the other bridging metal.

Abstract: Coupling assembly joining two profiled rails, more particularly for use with a shower partition, the first profiled rail having an opening extending over its entire length and an inner space. A clamping element is mounted in this inner space and has a threaded hole in which a screw threads, the second profiled rail being secured to the first profiled rail by tightening of the said screw. In order to facilitate assembly and make it possible to carry out subsequent mutual alignment of the profiled rails with little effort, there is provided that the clamping element be insertable from the side and at right angles to the longitudinal direction of the first profiled rail through the above-mentioned opening and into the inner space, one leg of the second profiled rail passing through the opening into the inner space. This leg is clamped in a gap which is formed between a bearing surface of the clamping element and a web of the first profiled rail and/or a support element.

Abstract: A three axis flexure joint is provided which is very stiff against translational forces along its long axis but is operable with three degrees of freedom over small angles with no lost motion. The flexure comprises two spaced metal connectors, which are connected to each other by a wire which runs through the metal connectors along an axis and is integrally joined to each connector, and at least one snubber pin. The snubber pin snugly fits into a bore of one connector of the flexure, the bore being arranged to accept the pin and to be parallel to the wire axis, while in the second connector, the pin has a loose fit in a corresponding hole similarly located. In this manner, the integrity of the connecting wire is maintained as the pins act as stops to rotation if rotation of either connector around any of its axes exceeds a predetermined limit. The flexure is also preferably configured with each connector being a bolt or screw so as to permit easy connection of the flexure to rods and master and slave devices.

Abstract: A wand for adjusting window blinds comprises at least two wand sections. The first wand section is an elongated rod having a hook at one end for attachment to a mechanism for adjusting a window blind. A connection means comprising four longitudinally extending lobes is arranged at the other end of the first wand section. A second wand section comprises also an elongated rod having four fingers at one end thereof designed such that the fingers interengage between the four lobes of the first wand section to releasably and non-pivotably interconnect the two wand sections. Small teeth located on the sides of the fingers engage in notches formed in the lobes to maintain the two wand sections in engagement. Additional wand sections, similar to the second wand section, can be added to the second wand section to further lengthen the blind adjusting wand.

Abstract: A coupling for electric motors, with each motor comprising a rotor (62, 63) and a stator (60, 61) mounted in a tubular shell (4, 5). The coupling includes the ends (8, 8a) of the tubular shells to be assembled, shaped for end-to-end inter-fitting in a manner which determines a relative angular position of the shells, the shape being identical on both shells; the coupling further including an internal coupling module (12) constituting a subassembly which is independent of the motors per se. The module comprises a coupling sleeve (15) for coupling the rotor shafts (16, 17), electrical connection means (29) for interconnecting the stators (60, 61), and support means acting both as radial bearings (19, 20) and as axial stops (21, 22) for the motors.

Abstract: A connector of structural parts such as beams with a through-going wooden pillar is disclosed. The connection consists of a first plate having a hook and being fastened to the beam in a torsion free manner. This hook has an essentially horizontal supporting area at the lower end and at least one vertical contact area. A second cross-shaped support plate is disposed in a pillar and its vertical plate portions are in one plane with the first plate. The second plate includes fitting areas which mate with the supporting area and the vertical contact area of the hook. The pillar is connected by means of a wedge-shaped tenon joint below the supporting area of the support plate.

Abstract: The construction element comprises a body which has resiliently openable jaws at least at one end thereof which are locatable between similar jaws of a further construction element with the jaws of the respective elements in mutually transverse planes. The jaws have an open front defined between free ends thereof whereby said jaws locate each other with the free ends of the jaws of each element resiliently engaging retention means on the other element.