Abstract: A rustication for preparing reveal bands in a precast panel surface. The rustication is made from a one piece elongate body of extruded foam and comprises an upper surface, a lower surface and laterally-spaced sidewall surfaces that extend between the upper and lower surfaces. The lower surface defines a base plane. One or more downward-extending edges that project below the lower surface base plane are included such that they can bend under the application of a load, such as when concrete is poured around it to form the precast panel. Under such a load, the edge scrapes along the top of a panel-forming surface so that an enhanced sealing engagement between the panel-forming surface and the rustication is effected. The rustication can further include a plurality of longitudinally-spaced apertures that extend from the upper surface to the lower surface to facilitate the securing of the rustication to the panel-forming surface, thereby precluding rustication shift once the concrete is poured.

Abstract: A process for producing a honeycomb structure, which comprises adding, to a particulate ceramic raw material, a fatty acid salt-containing dispersing agent and at least water, kneading the mixture to obtain a puddle, and extruding the puddle, wherein the fatty acid salt constituting the dispersing agent comprises:

Abstract: The synthetic threads are produced from a polymer mixture consisting of polyamide as base polymer and at least one additive polymer, the polymer mixture being pressed through nozzle openings as polymer melt with extrusion speeds (s) in the range from 18 to 160 m/min. The filaments thus formed are cooled, combined to threads, drawn off and spooled by forming at least one thread spool. The content of additive polymer in the polymer mixture is not less than M wt-% and not more than 2.5 wt-%, where M is derived from 0.0001·v−0.4, where v is the draw-off speed of the thread, and v lies in the range from 4500 to 8000 m/min. The additive polymer is amorphous and virtually insoluble in the polymer melt. In the spooled thread, the additive polymer is present in the base polymer in a fibril structure, the ratio s:v lies in the range from 1:50 to 1:250. Upon spooling, the thread spool preferably has a weight of the spooled thread of at least 4 kg.

Abstract: The present invention provides a door panel having a decorative insert integrally attached to the door panel. In one embodiment, the method of forming the door panel comprises forming the decorative insert by preheating a substrate and placing a coverskin on top of the substrate. The substrate and the, coverskin are subject to a compression molding process to form the decorative insert. The decorative insert is then disposed inside a second molding tool and a plastic material is injected into the cavity of the second molding tool. The plastic material then forms the door panel.

Abstract: A process and a device produces an assembly linkage on a hollow profile which is shaped for the installation of the assembly part by internal high-pressure remodeling. In order to achieve the shaping of an assembly linkage in a component space-saving, for a subsequent assembly correctly positioned, and with regard to its contour exactly fitted to the assembly part, in simple manner and even with high degrees of remodeling in a secure process, the hollow profile, under internal pressure, which is smaller than the remodeling pressure, is indented at the place of the to-be-produced assembly linkage by a die and by forming a rough contour. Afterward, while the die remains in this indenting position, a fluid high pressure is created in the hollow profile. Thereby, the hollow profile sides surrounding the die are molded to the external contour of the die, and that after releasing the fluid high pressure and the subsequent removal of the die, the finished trough-shaped assembly linkage is released.

Abstract: An imprint process comprises the step of aligning a substrate, supported on a first support member, with a template, supported on a second support member. The substrate has at least one essentially plane surface provided with a moldable film. The template has at least one essentially plane surface provided with a relief pattern. The relief pattern is adapted to interact with the moldable film. The process further comprises the step of arranging a sealing gasket between the template and the second support member, such that a pressure cavity is defined by the second support member, the template and the sealing gasket. The process also comprises the step of applying a static gas pressure to the pressure cavity, in order to provide a pressure between the template and the substrate. The pressure is sufficient to form a pattern in the moldable film. An imprint device is also disclosed.

Abstract: The invention generally discloses an apparatus and method for removing threaded, molded articles from an injection mold. A cam system and linear drive/following gear mechanism engages a finely resolved retraction of a threaded mold core, under substantially full mold clamp pressure, prior to rotational disengagement of the core from the molded article. The invention also describes a system for the reduction of galling that may otherwise occur when mold components experience relative rotation with respect to each other. Moreover, the invention describes an apparatus and method for substantially reducing periodic maintenance checks and interruptions in production.

Abstract: A method for making an enhanced intrinsic polarizer from a polymeric sheet having an original length and comprising a hydroxylated linear high polymer includes stretching the polymeric sheet to a stretched length of from greater than 5.0 times to about 7.0 times the original length, introducing a suitable dehydration catalyst to the polymeric sheet, and heating the polymeric sheet and the catalyst to effect partial dehydration of the polymeric sheet wherein light absorbing, vinylene block segments are formed.

Abstract: The present invention provides a dual-purpose installation for continuous annealing and hot dip plating to produce a continuously annealed steel sheet and a hot dip plated steel sheet by switching process routes in the single installation, and according to the present invention, by installing a bypass facility which leads a steel sheet from a continuous annealing furnace to a water quenching facility without it traveling through a plating pot and a plating facility in the a dual-purpose installation for continuous annealing and hot dip plating, it becomes possible to prevent the steel sheet coming out from the annealing furnace from being exposed to the outside atmosphere and being oxidized during the production of a continuously annealed product and to realize a less expensive dual-purpose installation for continuous annealing and hot dip plating.

Abstract: A pressure cylinder for a hydraulic actuation device in motor vehicles includes a housing (1) with an internal cylinder (2,3). A piston (6) is displaceable in the internal cylinder for forming a pressure space (12) for a hydraulic fluid. The piston includes a hemispherical socket (10) in an indentation (9). A spring (18) is arranged in the pressure space (12), and a tappet (7) is connected by a transmission part with a hemispherical cap (8). The tappet (7) is in a frictional and swivelable engagement in the socket (10) in an indentation (9) by the force of the spring (18). The piston is a deep-drawn, cup-shaped part and includes a filling piece (13) in the interior of the piston (6). An annular space (15) is disposed at a piston surface (14) facing toward the pressure space (12). The annular space (15) is for receiving the spring (18) in a compressed state when the piston (6) is in a top dead center position.

Abstract: The present invention provides a strut mount comprising an inner member 12 to which an upper extremity of a rod of a buffer is fixed, an outer member 14 attached to a vehicle while surrounding an outer circumference of the inner member, and an elastomer 16 interposed between both members to dampen vibration, wherein an attachment piece 28 of an outer fitting 14 and an attachment plate 2 of the vehicle body are curved in the form of a sphere to raise rigidity and improve vehicle running stability. Besides, a non-fastening surface portion 36 is provided by being lowered via a different level portion 34 around a bolt fastening surface portion 30 of the attachment piece 28, preventing rubber burr from being produced on the fastening surface. Furthermore, by the use of a caulking nut 52 stuck to the underside of the attachment piece 28, the weight of the products can be reduced, and cost reduction is accomplished by laborsaving during operations.

Abstract: A housing (3) has an upper end wall (3a) and a lower end wall (3b) which support an upper slide portion (11) and a lower slide portion (12) of a clamp rod (5) vertically movably, respectively. The rod (5) is moved downwards for clamping through a clamp spring (20). The lower slide portion (12) has an outer periphery provided with guide grooves (26), each of which comprises a helical rotary groove (27) and a straight groove (28), peripherally in plural number. Engaging balls (29) which are fitted into the respective guide grooves (26) are rotatably supported by through holes (31) provided in an upper portion of the lower end wall (3b). A sleeve (35) is externally fitted over the engaging balls (29) rotatably around an axis.

Abstract: The universal document processor provides for an economical document processing solution. Thus the capital investment in equipment could be maximized by the use of a single system to perform a wide variety of tasks by a single system. Presently, no system combines all these described functions in a single system, instead requiring a plurality of input and output devices, frequently certain of them requiring installation and setup to the exclusion of others, greatly decreasing efficiency in operation. With use on an inserter system one would have a universal document processing solution system processing both cut sheet and continuous in one front end.

Abstract: The present invention provides an apparatus and method for removing a slip sheet from the top of a stack of printing plates. The apparatus includes a wing for covering an end section of the slip sheet, an air manifold coupled to an end of the wing, the air manifold including a plurality of orifices for directing streams of air along an underside of the wing to lift the end portion of the slip sheet off of the printing plate and toward the underside of the wing, a plurality of idler rollers rotatably mounted about the air manifold, and a clamping bar mounted to the wing for selectively pinching the lifted end section of the slip sheet against the underside of the wing, thereby capturing the slip sheet.

Abstract: A sheet feeding apparatus according to the present invention includes: a feed rotary member rotationally driven in a sheet feeding direction; a retard rotary member in contact with the feed rotary member under a predetermined pressure and rotationally driven in a direction opposite to the sheet feeding direction with a predetermined torque; and a pressure fluctuation restraining device for diminishing a change in a contact pressure of the retard rotary member for the feed rotary member generated at the time of drive transmission to the retard rotary member.

Abstract: The present invention provides a method and apparatus for stacking mailpieces received from a mail-processing machine in consecutive order. There is a receiving conveying section positioned at a greater height than the following stacking conveying section. A stacking ramp extends from the downstream portion of the stacking conveying section. The receiving conveying section has a single continuous belt extending along the receiving conveying section in a first direction and positioned centrally along a second direction of the conveying section. The continuous belts of the stacking conveying section are positioned substantially at equal intervals extending along the first direction of the stacking conveying section and have top surfaces which extend above the stacking conveying section and which contact the mailpieces received from the mail processing machine.

Abstract: The present invention relates to a device for stacking of sheets. A high-speed printer is provided for printing the sheets or at least one continuous web which is cut to sheets (2). The stacking device is provided to receive sheets in at least one flow (AS1 and/or AS2) thereof to said stacking device and to transfer said sheets (2)in the flow (AS1 and/or AS2) thereof to at least one first stacking table (11b) in order to form thereon at least one stack (2A and/or 2B) of sheets (2).

Abstract: An image recorder is provided. For mounting two plates on a drum, two side-to-side adjustment sections are used. Each of the side-to-side adjustment sections includes an outer nut portion and an inner nut portion movable by respective ball screws in a first direction perpendicular to a second direction in which the plates are fed. When a plate is fed with reference to the center of the drum as seen in the first direction, the inner nut portion is pivoted about the corresponding ball screw aside to a location such as not to hinder the movement of the plate. Thus, when a plurality of side-to-side adjustment sections are provided for side-to-side adjustment of plates, at least one of the side-to-side adjustment sections which is not in use is prevented from interfering with the plates.

Abstract: A sheet guide apparatus comprises gripper devices for holding and transporting a printed sheet, an impression cylinder and a transfer cylinder for holding and transporting the printed sheet received from the gripper device, and a first guide device for guiding the printed sheet being transported. A front end portion of the first guide device is located upstream, in the flow direction of the printed sheet, from a transfer position, where the printed sheet is transferred from the gripper device to the impression cylinder, and the front end portion of the first guide device is also located near the transfer position. Suction holes opening in a front end portion of a plate-shaped guide of the first guide device are provided for sucking air. The sheet guide apparatus suppresses fluttering or instability of the sheet.

Abstract: When a sheet member or printing plate is closely held on a peripheral surface of a drum, no scratch is made on the peripheral surface, edges of the sheet member are held with certainty, and the sheet member is prevented from being partially lifted from the peripheral surface, thereby preventing deterioration of image quality. Since clamp portions are rotated in a direction in which they tension the sheet member due to a centrifugal force acting thereon, the sheet member is held in close contact with the peripheral surface. Further, since the clamp portions are disposed at one end portion in a width direction of the plate, gripper margins of the sheet member is reduced and an image-recordable area thereof can be increased.

Abstract: A device for characterizing a cell or particle includes a channel having an inlet and an outlet, the channel containing a moving fluid therein for carrying the cell or particle from the inlet to the outlet. The device includes a detector for detecting the presence of a cell or particle along portion of the channel, the detector including a first detecting position, a second detecting position, and a third detecting position. The device further includes a light source providing an optical gradient disposed within the channel and between the second and third detecting positions. A control system is coupled to the detector to receive and process detected signals from the detector. During operation, the amount of time that a cell or particle takes to flow through a first distance (i.e., its time-off-flight) is measured. The cell or particle is then flowed past a second, downstream distance in the presence of an optical gradient and its time-of-flight is measured.

Abstract: The Jake and the Pancake game is an original creation inspired by a book I authored.

Abstract: One or more additional “bonus hand” cards that have no playing value are added to the deck of playing cards that is used in a video poker. When a “bonus hand” card appears in the player's initially dealt hand of cards, the player receives a second bonus hand of the initially dealt hand of cards. Alternatively, if the bonus hand card appears as one of the replacement cards during the draw step of video poker, the player is provided with another poker hand. In general, any type of triggering event is provided which awards the player another hand of video poker for no additional charge if the triggering event occurs during the player of the video poker hand.

Abstract: A conventional game of Blackjack modified so that the play of the game remains the same, but the house advantage is increased in a manner which does not affect the player's desire to play the game. The Blackjack game is played with a single deck of 52 cards. A player places a wager to be entitled to play, and cards are dealt to the player and dealer/house. Play continues in the conventional manner with, if desired or applicable, insurance bets, double-down, splits, surrender, and/or player and/or house standing or receiving one or more additional cards. The player's hand is compared to the dealer's hand in accordance with conventional Blackjack rules to determine if the player's hand is a winning hand. If the player's hand is a winning Blackjack (i.e. two card 21) then the player is paid a winning in the amount of 6:5 times their original wager.

Abstract: A split seal component includes two seal face segments in two holder halves and a method of assembly and installation. Each seal face segment has a primary sealing surface and a section extending axially from each primary sealing surface The holder halves are adapted to be joined together to rigidly hold the circular seal face. The holder being constructed and arranged to mount to a shaft.

Abstract: A sealing ring for a shaft (3), characterised by a sealing lip (1) made of an elastomer material is flexionally dimensioned with a flexional elasticity which is sufficient for pressing a sealing section (10) of the sealing lip (1) against the surface of the shaft (3). The sealing section (11) of the scaling lip (1) is disposed with a cylindrical part of a given length (L) on the periphery of the shaft (3). The sealing lip (1) is provided with a thread (5) at least along the above-mentioned length on the shaft side, whereby a discharged medium is transported back to the sealing area (M) when the shaft (3) is rotated. By dimensioning accordingly, it is possible to dispense with an additional spring for pressing a sealing lip (1) against the shaft (3). The thread (5) is also sealed off from the surrounding area (U) in order to prevent the medium to be sealed from flowing out when the shaft (3) is not in operation.

Abstract: A primary objective of the present invention is to decrease the friction coefficient of the sliding face of a sliding element and to improve its seal performance. The sliding element disposes a plurality of elongate dimples in its first sliding face in which forward edges of the dimples relative to a rotational direction are inclined with respect to a tangential direction of a rotational circumference. The sliding element also disposes a second sliding face which has either a plane surface or second dimples and is located in the opposite side of the first sliding face relative to the process fluid.

Abstract: A seal ring seals operating oil hermetically and is attached to an annular seal ring groove provided on an outer circumference of a shaft member. The seal ring comprises fluororesin, metal powder having a hardness equal to or more than that of any of a side surface of the seal ring groove serving as a sliding partner and an inner circumferential surface of a housing engaged relatively rotatable with the outer circumference of the shaft member, and modified fluororesin formed by irradiating an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less.

Abstract: A sealing device for a movable shaft arranged between a high-pressure space and a low-pressure area of a pressure-resistant housing bounding the high pressure space. The sealing device includes a deformable pressure ring and a sealing ring that surrounds the shaft and is partially deformed by the deformable pressure ring. The pressure ring is supported under pressure at an outer circumference of the sealing ring, with the sealing ring resting either against or almost against the shaft.

Abstract: A sealing device has a protection ring having a first step and a second step formed with the first step. A sleeve ring is received in the protection ring in a water proof manner. The sleeve ring has a first metal ring, a first rubber ring securely bonded to a side of the first metal ring and having a dust proof lip extending out of the first rubber ring to engage with a face of the protection ring to define therebetween a first gap. A sealing ring is received in the protection ring and engaged with the sleeve ring. The sealing ring has a second dust proof lip extending out of the second rubber ring to engage with a face of the second metal ring of the sleeve ring.

Abstract: A combination seal attached to a bearing comprising a fixed element and a rotating element, which rotate relative to each other, so as to seal the inner side and the outer side of said bearing. The combination seal is comprised of a seal ring and a slinger. Said seal ring is comprised of a reinforcing ring and an elastic seal supported by the reinforcing ring. The leading end side of said elastic seal, supported by the reinforcing ring extending toward the slinger, is brought into contact with the surface of the slinger, which is opposite to the seal ring, when the combination seal is attached to the bearing. During the combining work process, when combining the seal ring and the slinger to form a combination seal, the seal lip does not turn over and the seal lip can be held toward a predetermined direction without using a specific jig during the combining work process and without being particularly careful during combining work.

Abstract: A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon insertion of an elongated tool shaft having a polygonal cross section into the bore so that a groove in the tool shaft is aligned with the first detent, the first detent engages the groove and axially retains the tool shaft. Upon movement of the jaws so that the jaw faces engage flat sides of the tool shaft, the jaws rotationally retain the tool shaft.

Abstract: A vehicle roll control system uses two accelerometers (38, 40) on the vehicle to detect body roll and then filters out higher frequency roll movements as indicative of a rough road surface. The system also monitors vehicle speed, and increases roll stiffness in response to measured increase in vehicle speed, but decreases roll stiffness in response to detected rough road surfaces.

Abstract: A braking system preferably for an in-line skate includes a brake pad mounted to a forward end of a skate frame and an elevated front wheel attached to the skate frame by two pivot arms. The pivot arms are biased forward which is in a clockwise direction with respect to their pivot point. When skating normally, the pivot arms bias the wheel against the brake pad, but the wheel is elevated from the skating surface and thus the brake is not engaged. When skating in a rearward direction, or desiring a push start, the skater rotates the toe portion of the skate downward and raises the heel. The front wheel will engage the skating surface and the reaction force on the wheel due to friction between it and the skating surface will urge the wheel forward and increase the contact pressure between it and the brake pad.

Abstract: A snowmobile ski includes an elongate ski element. The elongate ski element has a tip and a tail defining a length therebetween, top and bottom surfaces, first and second lateral edges extending longitudinally between the tip and the tail defining a width therebetween, and an attachment flange extending upwardly from the top surface. At least one lateral extension element is detachably secured to one of the lateral edges to thereby increase the lateral width of the snowmobile ski.

Abstract: A platform attachment for a dolly for stabilizing and carrying heavy and large loads. The platform attachment for a dolly includes a board member being adapted to mount upon a dolly, and being generally rectangular-shaped, and having a selected thickness, and also having first and second end edges and longitudinal edges, and further having an elongate slot being disposed therethrough near the second end edge thereof and being adapted to receive a blade-like carry member of the dolly therethrough.

Abstract: A full-function modularized assembly structure of a wheelchair includes two upper transverse tubes and two lower transverse tubes mounted between two sided front module connecting members and two sided rear module connecting members, thereby forming the main frame of the wheelchair. The front wheel and the rear wheel may be respectively mounted on the upper transverse tube and the lower transverse tube at different horizontal positions and different vertical heights, so that the distance between the front wheel and the rear wheel may be adjusted arbitrarily.

Abstract: A fluid automatic transmission for bicycles and other human powered vehicles that dynamically regulates torque thus changing mechanical advantage for the rider or engine. Similar in principle to using an automotive torque-converter that is never locked-out, the design is unique in applying that concept to the bicycle drive train.

Abstract: A wheelchair includes a seat frame having two transverse support rods, a foldable sunk-type seat module mounted on the seat frame and located between the two transverse support rods, a backrest frame having two upright support rods, and a foldable sunk-type backrest module mounted on the backrest frame and located between the two upright support rods. Thus, the backrest module may be mounted on and detached from the upright support rods of the backrest frame easily, rapidly and conveniently, and the seat module may be mounted on and detached from the horizontal support rods of the seat frame easily, rapidly and conveniently.

Abstract: A headset for use in the frame body of a bicycle or tricycle is constructed to include a ball bearing, an annular cap covered on the ball bearing, and an annular packing member mounted in between the cap and the ball bearing. The packing member has a top coupling flange forced into engagement with an inside mounting groove of the cap and a bottom hooked retaining portion hooked on a bottom edge of the ball bearing, keeping the ball bearing and the cap and the packing member secured together for easy installation.

Abstract: A bicycle frame comprised of a lightweight composite panel all of common thickness for simplicity of shaping desired by the user. Attached to the panel is a steering column, which is formed to receive a head set, a front fork, a handlebar and wheel. Also attached to said panel, is a chain stay member that has two supporting brackets, and a seat support assembly that can adjustably support a seat tube with an attached seat.

Abstract: A valve assembly for controlling the flow of fluid through a tube by pinching the tube to prevent fluid flow. The valve assembly includes a valve that receives the tube in a passage between a plunger and a bar. A spring urges the plunger toward the bar to pinch the tube closed. The bar focuses the pinching force of the plunger to reduce the pinching force required to prevent fluid flow. The valve assembly also includes a caliper for opening, locking open and closing the valve and that is attached to the valve with a cable. To open and close the valve, a main lever and lock lever, respectively are rotated in the same direction.

Abstract: An automatically engageable and releasable brake apparatus for a wheelchair, including a connection mechanism adapted to be attached to a portion of the frame of the wheelchair proximate a rear wheel of the wheelchair, a seat actuation member extending from a portion of the connection mechanism and adapted to be positioned substantially beneath the seat of the wheelchair, a shaft member positioned to extend substantially downwardly from a portion of the connection mechanism and a friction member positioned proximate the other end of the shaft member and adapted to contact the ground. Occupational ingress activates the seat actuation member to move from a first position to a second position, which causes the shaft member to rotate in concert therewith such that the friction member also moves from a first position in substantial contact with the ground to a second position spaced a distance above the ground.

Abstract: A wheel chair includes two side assemblies each include a back post with a hand grip, a seat bar connected to a lower end of the back post, an arm rest movably connected to the back post, a hanger bracket connected to a front end of the seat bar, a caster rotatably connected to a front end of the seat bar, and a rear wheel connected to a side of the side assembly. A connection device connects the back post and the arm rest, or the front end of the seat bar and the hanger bracket. The connection device has a C-shaped member fastened on the back post or the front end of the seat bar extends. A sleeve is connected to an outside of the C-shaped member and a first end of a connection tube is movably and rotatably received in the sleeve. A locking bolt extends through a close end of the sleeve and is threadedly connected to the first end of the connection tube. The arm rest or the hanger bracket is fixedly connected to a second end of the connection tube.

Abstract: This invention contemplates a novel dual platform for a boat trailer which features an extremely simple construction of great strength including a pivotal feature fro each of the two platform members allowing greater versatility for the towing vehicle in moving, parking and turning.

Abstract: For use with a towing vehicle having a hitching device (38) on a rearwardly extending bar support (32). A medial panel (20) and a base (14) are joined by a pivoting device (15) allowing the medial panel (20) movement from a horizontal position to a vertical position. The medial panel (20) is equipped at opposite edges with pivoting devices (12) and (13) allowing the attachment of the side plates (8) and (10). By use of the pivoting devices (15), (12), and (13) the invention can be positioned in a “closed” state providing a protective box like structure surrounding the hitching apparatus (38). The anterior surfaces of the side plates (8) and (10) are covered with a resilient material to lessen injury if contact is made. The invention may also be positioned in a “open” or bumper guard position by use of the pivoting devices (15), (12), and (13).

Abstract: An improved snowboard is provided in accordance with the present invention. The board comprises a soft edge for improved sliding over hard surfaces. The board does not have metallic edges. A method of riding an improved freestyle snowboard is also provided.

Abstract: A binding assembly is provided for an elongate ski. The binding assembly receives a boot having a toe portion and a heel portion. The assembly comprises a toe piece mountable to the ski for receiving at least a portion of the toe portion of the boot. A heel piece is spaced from the toe piece with the heel piece for receiving at least a portion of the heel portion of the boot. A spring mechanism connects the heel piece to the toe piece. A cam member is rotatably mounted to the heel piece and contactable with the heel portion of the boot with the cam member releasably retaining the boot within the heel piece wherein upon the heel portion contacting and rotating the cam member, the spring mechanism releasably secures the heel portion within the heel piece.

Abstract: A method and system for mounting a binding to a gliding board. In one embodiment, a single row of attachment features, e.g., threaded inserts, may be used to mount a foot binding to the gliding board. The attachment features may be equally spaced along the row, e.g., at 25 mm increments. In one embodiment, a binding includes a hold down plate that may be attached to the gliding board using only two fasteners, e.g., each fastener engaging with an attachment feature on the board, or using only fasteners that lie along a longitudinal line on the gliding board.

Abstract: A wheel chair assembly includes two identical side assemblies each of which has a front part and a rear part and a top link and a low link are respectively inserted in the horizontal fittings on the front part and the rear part. A pivotable device is pivotally connected between the top links and the low links of the two side assemblies. A hanger bracket and a caster are respectively connected to each of the front part. The rear parts each have a plurality of holes so that the shaft of the rear wheel is inserted in one of the holes.