Abstract: A structure for connecting a branch pipe in a high-pressure fuel manifold employs a nut to fasten the branch pipe to a main pipe, the nut having threaded surfaces which are simultaneously brought into thread engagement with a collar member fitted on the branch pipe at the neck portion contiguous with the top joint portion thereof which is brought into contact with the main pipe and with a coupling member which is secured to the main pipe in such a manner as to surround the peripheral wall thereof. Therefore, it becomes unnecessary to conduct a welding operation which has heretofore been needed to connect the joint portion of the branch pipe to the main pipe. The connecting structure satisfactorily endures ultra-high fluid pressure even under vibrations. In addition, there is no fear of fuel leaking out through the joint nor risk of the branch pipe coming off.

Abstract: A vertical leg (14) is received through a ring (16). An over-center latch mechanism is mounted inside a cavity (6) in a side rail (2). The end surface (2a) of the rail (2) has a recess (4). A shaft (24) has one end (26) secured to the ring (16) and extends from the ring (16) through an opening (8) in the rail (2) which communicates the recess (4) and the cavity (6). The inner end (28) of the shaft (24) is engaged by a lever (32) of the latch mechanism. Pivoting of the lever (32) pulls the ring (16) into the recess (4) and the leg (14) into contact with the end surface (2a) of the rail (2) above and below the recess (4). There is no contact between the ring (16) and any portion of the rail (2) to allow automatic adjustment for surface irregularities of the rail (2) and leg (14) and ensure firm contact between the leg (14) and rail (2). Preferably, the end (26) of the shaft (24) is pivotable relative to the ring (16).

Abstract: This invention concerns an improved socket for a control panel of the type having four angled corner pieces, at least two transverse recess members and at least two longitudinal recess members forming a frame. Dimensional stability and torsional rigidity of the socket are greatly increased due to the fact that vertical connecting flanges are bent at right angles along the free edges of the panel-mounting flanges at least in the area of the vertical mounting flanges for mounting of the transverse recess member, and such connecting flanges are connected to the recess-member mounting flanges when the transverse recess members are installed.

Abstract: An exercise device which may be attached to the side of a pool of water which enables an individual to do chin up type exercises while suspended in water by pulling down on a grasping bar which is attached to a lever arm by cables which are adjustable. The amount of pressure needed to pull down the grasping bar is regulated by varying the amount of weight placed on a bar attached to the resistance end of the lever arm. As the grasping bar is pulled upon, the lever arm rotates on an axle bar which is supported by two uprights. Running through the uprights below the axle bar is a safety bar which prevents the lever arm from making a full rotation on the axle bar and striking the user. The uprights which support the axle bar and safety bar are connected to horizontal bases which extend away from the pool. The vertical uprights and horizontal bases are connected together by corner plates and braces. The device is held in place by fasteners placed through the bases into the pool deck.

Abstract: A connector assembly for joining a horizontal member and a vertical member without the formation of substantial exposed gaps. The assembly includes a base with a saddle surface at one end and an abutment flange at the other end. The base has an aperture between the ends and a slot communicating with the aperture. A locking collar has a bore receiving the base and an inwardly directed annular lip at a first end of the collar. The collar also includes an internal screw thread and an abutment for engaging the flange of the base. Also the assembly includes a locking insert with a body for reception in the base. The insert has extending arms at one end terminating in screw threads and at the other end a holding flange for retaining the horizontal member. A method of using the connector assembly is also disclosed.

Abstract: A pipe fitting of expandable material for joining plastic pipes as used in the manufacture of PVC furniture with fittings and the fastening device being molded together as one unit.

Abstract: A chain guard fastener for secure fitting of the down tube and the seat tube of a bicycle comprises a fastening means and bolt having a key projecting in front thereof to permit engagement with a counterpart keyway provided on the chain guard. The fastening means is made of molded plastic, and includes a median split and a cylindrical form projecting out of a pair of symmetrically disposed faces, two suitably formed bolting ports traversing the pair of faces on either side thereof so as to permit passage of a bolt therethrough. One end of the bolt is stopped, while the other end of the bolt goes to a continuously toothed groove, in close proximity of the teeth.

Abstract: A pipe fitting of expandable plastic material for joining plastic pipes as used in the manufacture of P.V.C. furniture with fittings and the fastening device being molded together as one unit.

Abstract: A shifter boss mounting assembly includes a member threaded at each end and extending diametrically at least partway through a bicycle frame downtube formed with openings therein, a pair of shifter boss bases with inward surfaces conforming to the downtube outer surface, and a pair of shifter studs that extend through the base and a respective opening in the downtube and thread onto the corresponding threaded ends of the member. A projection on each base cooperates with an opening or indentation in the downtube to restrain the base from rotational movement. A lock washer or a plate keyed to cooperate with the base and the stud restrain the stud against unthreading when the shift levers are pivoted. Once mounted, the boss assembly is standardized in its external configuration to bosses adapted to receive standard commercial shift lever assemblies.

Abstract: A traffic marker support comprises a base (10) formed from polyvinyl chloride with a first angle iron section (16) and a second angle iron section (18) molded integral therewith. The lateral sides of the angle iron sections (16) and (18) form a channel (24) in the base (10). An upright marker (12) is disposed within the channel (24) and a bolt (30) used to secure the devices together. The lower surface (20) of the angle iron (18) and the lower surface (22) of the angle iron (16) are imbedded within the base (10) proximate the lower surface thereof with the channel (24) extending below the surface of the base (10) but not exposing the apexes of the angle iron sections (16) and (18). The reinforcement structure prevents rotational movement of the upright marker (12) with respect to the base (10) such that breakage at the uppermost portions of the angle iron sections (16) and ( 18) is prevented.

Abstract: Hollow structural sections of a circular or polygonal cross section are fixed to assembly elements having a circular or polygonal cross section by means of an end piece fitted into the end of a structural section, a holding cable surrounding an assembly element and a device for tensioning the cable which may be a winding shaft to which one end of the cable is fixed and which may move in a cavity of the end piece between a cable winding position and a position in which the shaft is locked in the cavity. In another embodiment, it is the head of the end piece which is movable with respect to the body of the end piece and which tensions a cable loop of fixed length.

Abstract: A clamping mechanism for mounting a tool holder or receiving sleeve having a cylindrical outer contour to a machine tool having a bed, the clamping mechanism comprising a slide mounted for sliding movement on the bed and having a concave surface for supporting the cylindrical outer contour of the tool holder sleeve, an apparatus for securing the slide on the bed, and a clamp assembly including a clamping bracket circumferentiallyspanning the tool holder sleeve, an arrangement for detachably securing the clamping bracket to the slide, and a threaded structure for tightening the clamping bracket around the tool holder sleeve.

Abstract: A bonnet is locked to the body of a valve into which the bonnet screws by a sheet metal bonnet lock which includes a portion that will mate with facets on the bonnet or with the sides of the valve body. Another portion of the bonnet lock is then deformed to mate with the other of the bonnet facets or valve body sides. The portion of the bonnet lock that mates with the facets on the bonnet circumscribes the bonnet such that one portion of the bonnet lock is fixed to the bonnet and the other portion is fixed to the valve body following deformation of the bonnet lock to prevent the bonnet from turning relative to the valve body.

Abstract: An assembly of slat members for insertion in a chain link fence includes a plurality of elongate, first slat members having opposed, substantially planar faces predimensioned to be interwoven between vertically consecutive links of the fence, each first slat member having one end formed with edges and a pair of resilient, spaced-apart flange members. The assembly also includes a second slat member having opposed, substantially planar faces predimensioned to be interwoven between horizontally consecutive, lower links of the fence for presenting an edge facing upwardly. The first slat members are downwardly positionable through the vertically consecutive links to a position whereby the bottom edge of each first slat member abuts or seats upon the upwardly facing edge of the second slat member, with the flange members overlapping opposite faces of the second slat member.

Abstract: An orthopedic traction frame for an adjustable hospital bed having relatively movable head and foot portions to adjustably position the mattress of the bed, the frame comprising of a pair of upright elongate support members for attachment to the headboard and footboard portions of the bed respectively, and a horizontal elongate support member interconnecting the upper ends of the same. The lower end of the upright member at the foot of the bed is pivotally attached to the footboard of the bed for movement about an axis perpendicular to the longitudinal axis of the bed, and adjustable clamping device is provided for attaching the upper end of the upright member at the foot of the bed to the end of the horizontal support member for pivotal movement of the upper end about an axis perpendicular to the longitudinal axis of the bed, whereby the foot of the bed may be retractably positioned and the traction frame adjusted for optimum load support at all positions of adjustment of the bed and mattress.

Abstract: An adjustable motorcycle passenger floorboard is attached at either side of a motorcycle frame below the rear seat. The device has a cylindrical rail having a brace at either end. The braces have slotted bolt holes for allowing the device to be bolted to the frame. A split clamp is attached around the cylindrical rail. The clamp, when loosened, can be slid between the braces of the cylindrical rail for allowing a continuous adjustment of the floorboard. The floorboard is attached to the clamp by a bar which can be rotated about its axis in a notched recess in the clamp for adjusting the attitude of the floorboard relative to the motorcycle. There are two adjustments in the device; one for adjusting the floorboard in a fore and aft position relative to the frame, and the other for adjusting the attitude or rake of the floorboard relative to the frame.

Abstract: A mount for a tubular supporting rail of a marine vessel for securing an antenna to the mount by means of an antenna ferrule. The mount includes clamping elements adapted to be secured to the supporting rail and carrying a threaded securing post, one clamping element has a cylindrical end to rotatably mount an L-shaped hollow rotary member that is mounted to the cylindrical end of the one clamping element and is rotatably positioned thereto. The L-shaped member includes an outwardly extending mounting post for securing objects thereto and thereby the supporting rail.

Abstract: A bracket, particularly for interconnecting a shelf and a gable comprises a transverse channel for the shelf and a through aperture, which opens into said channel, for a screw by means of which the shelf is intended to be connected to the gable. To reduce the strain on the transverse end edges of the shelf when it is subjected to forces in its longitudinal direction the extension of the bracket, when measured perpendicularly to the shelf, is at least two and preferably more than three times as great as the thickness of the shelf. On that side of the bracket which in the operative position of the bracket is turned away from the shelf and faces the gable, the bracket has a preferably central recess for restricting the engagement between the bracket and the gable to those marginal portions of the bracket which are located farthest away from the shelf.

Abstract: A fitting having a body provided with a pair of generally parallel, spaced arms extending therefrom, each having one of a pair of confronting camming surfaces thereon, a locking element located between the arms and mounted for pivotal motion about an axis perpendicular to the arms, and means accessible exteriorly of the fitting body for selectively pivoting the locking element to a position between the arms for engagement with the confronting camming surfaces thereof to urge the arms outwardly for interiorly gripping a hollow pipe into which the arms have been inserted.

Abstract: For joining a wishbone boom to the mast of a sailboard there is provided a connector having a body to which is pivotally joined a pair of sockets for receiving the mast ends of the wishbone, the sockets straddling a pair of complemental semi-cylindrical jaws pivotally mounted on said body and arranged to embrace a mast. When the sockets are positioned generally normal to the longitudinal elements of the jaws the latter are urged together by the sockets to clamp on the mast. Moving the sockets as a unit through an arc relative to the body and jaws releases the jaws so that they can separate and release the mast.

Abstract: A bicycle chainguard having a housing shaped to enclose a bicycle chain and sized to extend about the front sprocket and pass rearwardly to the rear sprocket of a bicycle, at least one lug extending sidewardly from the housing having a shank and a head of larger cross-sectional area than the shank, a clamp having a flexible body sized to wrap around a portion of the bicycle frame adjacent the front sprocket and having opposing ends forming recesses so that the ends may be jointed to form a socket to receive the lug therein, and a clip to mount the housing to the upper rear of the frame. The socket preferably is sized to provide sufficient clearance with said lug to permit relative rotational movement therebetween so that the chainguard may be adjusted to be mounted to a variety of bicycle frames. The ends of the clamp may be secured by a screw and nut.

Abstract: Support tube for a tubular assembly, particularly a vertical post for a railing, step of a ladder etc. at least one end of which is provided with an arcuate space into which a crossing tube can be fitted. At the arcuate edge of said arcuate space the wall of said support tube is bent into a protruding support extension (2). The support extension has been produced so that, prior to cutting the support tube to a desired length, a hole is drilled through its wall at the cutting line and the hole edges have been pulled out to form a collar protruding from the tube, whereafter the support tube is cut so that said collar is divided into extended support arches (2) which remain at the ends of separate support tubes.

Abstract: A furrower having shares that are displaceable on a support pipe which is connected to a tool attachment socket by a swivel joint, that can be fastened in any position. The fastening place is effected by a clamping device which can be released against spring action by a manual knob or button. A clamping member within the head of the share is pressed by means of its clamping section against the support pipe. This clamping section can be released by pushing the manual knob inwards. Preferred places of attachment to the support pipe are defined by notches. Each notch can accommodate one share, the share being engaged with the notch by means of a notch pin.

Abstract: A storage rack with spaced tolerance control tabs which effectively minimize down-aisle space buildup. The control tabs are positioned along the length of the storage rack and extend from the angles of the beam assemblies. The control tabs of adjacent angles are positioned adjacent each other at generally the same vertical level, and may be in contact with each other, near the outer surface of the post. In the preferred form, each control tab is located generally midway along the upright edge of the angle from which it extends, is generally rectangular in shape, and has a length about 1/10 the length of the upright edge of the angle.

Abstract: For use in adjustable storage rack systems comprising individual load beams or skeleton shelves having brackets connecting with upright support columns, a locking means is provided for securing the bracket to the column against accidental disconnection. More specifically, where the connection between the bracket and the support column comprises a pin on the bracket which is engaged in a slot on the support column, the locking means is engaged on the pin and prevents removal of the pin from the slot, thereby preventing disconnection of the bracket from the support column.

Abstract: A holder for a string-type or similar mop head. The holder is preferably made entirely of plastic and comprises a yoke, a mop head support member connecting the free ends of the arms of the yoke, and a mop head clamping assembly reciprocally mounted inside the yoke for clamping a mop head against the support member. The mop holder is opened for insertion or removal of a mop head by shifting the support member longitudinally to unlatch it and then rotating the support member out of the plane defined by the arms of the yoke.

Abstract: An adjustable clamp (26) for selectively varying the hinging action of a flexible, inflatable fluid-stripping bag (12) including an elongated bag inlet (14) having a predetermined cross-sectional area and a nozzle (16) at one end thereof and wherein the bag inlet (14) is mounted about an opening (24) of a plenum (20) for supplying air to the bag (12). The clamp comprises an adjustable frame (26) adapted to be disposed about the bag inlet (14) and spaced therefrom to adjustably limit the extent to which the bag inlet (14) opens to determine the cross-sectional area and a band member and fastening device for securing the frame (26) about the bag inlet (14) whereby a change in the cross-sectional area produced by the frame (26) changes the resistance of the hinging action of the bag (12).

Abstract: A tee joint in a tubing structure including a running tubing member and an abutting tubing member forming a tee joint, a transitional connector having a saddle shape to receive therein the running tubing member on one side thereof and a recess on the other side thereof to receive the end of the abutting tubing member, a tapered plug threadedly connected into the end of the abutting tubing member with a nut encapsulated in the plug, and a bolt passing through and joining the running tubing member to the nut.

Abstract: A pickup truck bed sidewall adaptor for a stake-frame assembly comprised of a pickup truck sidewall coupling member and a telescoping member. The coupling member has a top wall portion that in its operational position matingly rests on the horizontal top wall portion of the pickup truck bed sidewall. The top wall portion has a downwardly extending inside wall portion that matingly contacts the inside surface of the upper region of the pickup truck bed sidewall. The top wall portion also has a downwardly extending flange portion that matingly contacts the outside surface of a flange extending downwardly from the outer edge of the horizontal top wall portion of the pickup truck bed sidewall. The downwardly extending flange portion has an inwardly extending lip portion connected at its lower end that functions to grip the bottom edge of the downwardly extending outside flange of the pickup truck bed sidewall.

Abstract: The disclosure relates to an improved rattan joint in a knockdown form employing a tonque and groove connection with the tongue extending diametrically to cover the outermost layer of the rattan and said joint being rigidified and securely fixed together by unique fastening means.

Abstract: A pipe connection, and method for forming said connection, wherein one pipe is connected at an angle to the side of a second pipe, said connection forming a structural joint and not a flow passage; a first pipe has a cylindrical opening formed in its side while a second pipe has one end contoured to fit against the side of said first pipe over said opening; said second pipe has a locking member fixed to the interior thereof with a projection which fits into the opening in said first pipe with said projection having a stem extending therefrom having an enlarged head which projects into the interior of said first pipe; a holding clip is positioned between the underside of said enlarged head and the inner surface of said first pipe forcing the contoured end of said second pipe against the side of said first pipe.

Abstract: A group use toy structural construction set comprising various lengths of a straight resilient plastic tubes with slotted ends, large size tubular member resilient plastic hoops, three basic types of tubular member connectors, and an optional wheel hub. The three basic types of connectors are used for releasable interengagement of: (a) tubular member body-to-tube end; (b) tubular member body-to-tubular member body; and (c) tube end-to-tube end. Connectors use identical clutching elements and identical frictional fitted plugs, with clutching elements designed to grasp and frictionally hold tubular member bodies, and plugs designed to be fitted into slotted tube ends and frictionally hold therein. Tubes and hoops have same outside diameter for tubular bodies. Hoops have overall diameters ranging up to those of a "hula" hoop, or about 36 in. (90 cms). Some connectors are fixed type, and some pivotal type, with latter having angular latitude advantage over former.

Abstract: A horizontal, support rack for use in supporting pallets on vertical H-beams includes an elongate support bar having beam engaging clamps at opposite ends thereof. The clamps include J-shaped plates welded to the ends of the support bar, each J-shaped plate cooperating with a clamping element to adjustably secure an end of the horizontal support bar to the adjacent vertical beam. Conventional pallets are supported on adjacent pairs of horizontal support racks or bars.

Abstract: The invention relates to anti-theft devices for automobile vehicles in which such devices are fixed on the steering column of the vehicle and the aim of the invention is to provide anti-theft steering device which can be adapted to steering column of differing diameters while retaining the necessary security of the fixing. The device comprises a casing containing a locking bolt operated by a security lock and a base to which the casing is secured by means of screws with breakaway heads. The base has a half bore corresponding to the steering column to be equipped with the device and is secured by a flexible member whose first end is selectively fixed by a pin at one of several discrete locations and whose other end is secured to the base in an adjustable manner.

Abstract: In a collapsible kite structure, a snap lock connecting assembly comprising at least two suitably rigid sticks or struts and at least one detachable bracing stick or strut, in combination with a snap lock connecting unit. The snap lock includes a fastening body portion attached to a stiffening stick, such as a wing stick of said kite, and a resilient, flexible, hollow retainer body portion configured to securely receive and resiliently hold an end part of a bracing strut. The retainer body portion of the snap lock has a longitudinal slot through the side thereof for forced passage therethrough of an end part of the bracing stick whereby the end of the bracing strut may be detachably retained in a secure position within said hollow retainer body. In a preferred embodiment the retainer body portion of the snap lock has a bead or other interengaging structure to enhance the secure retention of the end of the detachable bracing stick within the retainer body.

Abstract: An auxiliary handle for a power tool having an elongated housing of the type which is clampingly attachable to the housing of the tool near the forward end thereof. The handle includes a pair of clamping jaws which cooperate with a hand grasp to generate a clamping force which is transmitted to a split collar retained between the jaws which in turn is adapted to receive and clampingly engage a cylindrical barrel portion of the housing. The collar has a convex outer surface which defines a spherical zone, enabling the collar to be retained in a complimentary shaped annular concave recess defined by the jaws, while allowing the jaws and the hand grasp to be moved in any direction along the spherical zone to thereby position the hand grasp angularly in three dimensions relative to the housing.

Abstract: The joint is formed between two mutually perpendicular tubes by seating a washer in one tube, a nut within the other tube and by passing a bolt through the washer into threaded engagement with the nut. The resulting joint is hidden from view. A spreader bar is formed by joining the ends of two tubular sections within each other after each section is joined to a tube.

Abstract: A frame structure and method of making same which includes a pair of similarly constructed end supports which can be readily bent to define an inverted U-shaped member, each having a specified notch configuration formed at the corner portions of the respective U-shaped members for receiving and securing the end portions of opposed side rails for maintaining the end supports in a stable predetermined spaced relationship, and cross rails detachably interconnected between the opposed leg portions of the respective end supports. The method of forming such frame structure includes the steps of forming a notch at spaced intervals along a readily bendable length of a stock material whereby the length of stock material can be readily bent into an inverted U-shaped end support in a manner whereby a side rail is gripped and secured at the bent corners of the end supports, and securing a cross rail between the opposed leg portions of the bent end supports.

Abstract: This invention relates to improvements in or relating to outdoor spiral stairs comprising a column of galvanized pipe, a plurality of footstep means fixed with the column to a spiral direction and supporting means having a U-shaped bolt and nuts. Unlike the conventional welding and drilling method, a plurality of footstep means are firmly fixed with the column by clamping the supporting means by the U-shaped bolt and nuts.

Abstract: The present invention relates to a stanchion connector assembly adapted to provide an anchor for the terminal end of a ramp rail whereby the same may be secured to a stanchion at any of a series of relative angles with respect thereto.

Abstract: A shelf and corner post combination wherein the shelf is adjustable into any of a variety of selected elevations. Each of the posts is preferably cylindrical and is provided with a series of vertically-spaced indentations along at least one side thereof. The shelf includes a perimetric frame having adjacent side frame members which merge to define a corner section having an inside contour corresponding with that of the post. Each corner section has at least one inwardly-projecting horizontal rib adapted to seat in any selected indentation of the post. Different means are disclosed for drawing the rib into a selected indentation and for locking the parts in interfitting relationship.

Abstract: An improved fully mechanized sawmill is provided which is composed of structurally independent modules which are removably mounted on a platform composed of a plurality of side-by-side longerons supported horizontally on files of spaced-apart vertical piers and columns. The longerons provide horizontal stress support for the platform along the files of piers and columns perpendicularly to the cutting axis of the sawmill, and the modules mounted thereon provide horizontal stress support for the platform along the ranks of the piers and columns parallel to the cutting axis. In addition, improved mechanisms and techniques are provided for handling and selecting the sawlogs to be cut, for selecting and distributing the pieces cut therefrom according to shape and utility, and for stacking and handling the distributed pieces at preselected locations according to shape and utility.

Abstract: The base end of the needle is draw-bolted tightly against a transverse supporting shaft for movement of the needle with the shaft during swinging of the latter, but enlarged openings through which the draw bolt extends permit the needle to be adjustably shifted about the periphery of the shaft without first loosening the draw bolt when setscrews on opposite sides of the latter are turned to effect such adjustment.

Abstract: A display rack has a tubular extension arm with a plurality of hangers extending transversely from it. A holder and a support bracket are secured by a flexible bands to an upright pole member. One end of the extension arm is seated in the holder and a support chain is attached to the outer end of the arm. The other end of the support chain is connected to the support chain bracket. Closure bars fit over the respective hangers to secure goods suspended therefrom.

Abstract: A handle post for attachment to a skateboard, the post having a socket in the lower end thereof, an anchor piece in the socket and a tension bar extending between the anchor piece and the top of the post. Stirrups having portions engageable with the underside of the skateboard are adjustably attached along opposite sides of the handle post, to the anchor piece to accomodate skateboards of different thicknesses and widths.

Abstract: A hanging file support frame has a pair of file folder support rails and a pair of transverse members. Four corner fittings supported in an elevated position each have a substantially vertical slot receiving one end of a rail and a substantially horizontal slot receiving one end of a transverse member. Each transverse member overlies both rails to prevent the upward movement of the rails.

Abstract: A gas tank-carrying trailer consisting of a wheeled U-shaped main frame with hitch means and a supporting dolly at its bight portion. The rear portion of the main frame carries an arched tank-lifting frame structure provided with winch means for lifting a tank above the level of the main frame. The arms of the main frame have spaced pairs of positioning lugs, and load bunks are provided with spaced right-angled plate-like vertical end portions supportable on the arms between the positioning lugs. The positioning lugs act to positively hold the bunks in transverse supporting positions when the tank is lowered onto the bunks. The tank is held down on the bunks by straps or chains whose ends are hooked to cross rods connecting the plate-like end portions of the bunks.

Abstract: An auxiliary implement adapted for use in combination with different makes and models of first implements includes an adjustable mounting for securing the auxiliary implement to different sizes and shapes of frame members in the first implements. The mounting comprises a bracket secured to a support in the auxiliary implement and the bracket includes a forwardly projecting portion engageable with the upper side of the frame member to which the auxiliary implement is to be connected. A side portion of the bracket extends laterally beyond the side of the support and includes a vertically extending hole formed therethrough. Mounted on the bracket forwardly of the hole is a rearwardly extending tongue having a free end portion located adjacent the hole. The forward end portion of a line in the form of a roller chain is connected to the tongue by being telescoped over the tongue and between the links of the chain.

Abstract: The invention provides a seat comprised of spaced rectangular frame members formed of tubular plastic, the frame members being held together by at least three tubular cross members which join to the frame members by means of mechanical pressure fitting. Around the cross member is provided a webbing in a triangular-fashion. The seat has two positions, or seating modes, effected by a rotation of 90.degree..The mechanical pressure fittings comprise an expansible shaft having an outside diameter substantially the same as a tube into which it resides. The shaft is expanded by rotating a bolt which associates the shaft with an expansion wedge. The fitting further connects to a second tube transverse to the first, through the means of the same bolt and while avoiding compression of the second tube by way of an internal spacer element.