Abstract: A coupling device joins and axially aligns segments of a driveshaft or other shaft to form one, continuous length, shaft for use in a machine press.

Abstract: The conical clamping set (100) serves, for example, to connect a shaft (1) with a hub (3) and is arranged in the radial clearance (5) between the cylindrical outer-circumference surface (2) of the shaft (1) and the cylindrical inner-circumference surface (4) of the hub (3). It includes inner conical rings (11, 12) with a cylindrical inner-circumference surface and a conical outer-circumference surface (8', 8"), as well as a thin-walled external conical ring (10, 18', 18") with conical, inner-circumference surfaces (7', 7") fitting onto the outer-circumference surfaces (8', 8") of the inner conical ring (11, 2) and a cylindrical outer-circumference surface (6) intended for application on the inner-circumference surface (4) of the hub (3). Axial clamping screws (19) are distributed over the circumference; the conical rings (11, 12) can be axially pulled against each other by tightening the clamping screws.

Abstract: A axially split casing with flange connection of two casing halves, wherein the casing upper part (1) is bolted to the casing lower part (2) with split line bolts (5) on the circumference of the axial split line flange (3). An axially divided casing extension (9), which is surrounded by a coaxially arranged axially unsplit ring (11) on the outer circumference, is arranged at one or both end faces (4) of the casing upper part (1) and the casing lower part (2) in the area of the casing axis (8). Wedge-shaped tensioning elements (14), which are tensioned by means of tension bolts (15) between surfaces (13) arranged in the ring (11) and countersurfaces (12) of the collar (10) of the casing extension (9), may be additionally arranged between surfaces (12, 13) arranged in the ring (11) and the collar (10) of the casing extension (9).

Abstract: The present invention relates to engagemnent devices and coupling members for forming a structural frame work for hollow tubes. One form of engagement device comprises a hollow sleeve (1) through which a tube (31) may be passed. The hollow sleeve has a deformable flared portion (2). A further hollow sleeve member (12) is immovable on the outside of the first sleeve and has a surface (13) arranged to co-operate the flared portion to cause it to deform to grip the tube (31). A further engagement device comprises a hollow sleeve portion (100) which is distendable to grip a tube mounted on its surface. A trustoconical wedge (101) is movable within the hollow sleeve potion (100) to cause to distend. A number of engagement devices may be connected together to form coupling members for connecting tubes to form a structural frame work.

Abstract: A quick connect splice for concrete reinforcement bars includes two diametrically opposed half-shells spanning the aligned ends of the rebars. The half-shells interlock with raised ridges on the bar surfaces to hold the bar ends together. Two sleeve elements slipped over the bars are screwed to each other over the shell sections to secure the splice joint.

Abstract: A cone drive apparatus includes a conical drive assembly which aligns and drivingly engages between an engine and a transmission. The conical drive assembly is fastened to a flex plate which is connected to an output member of an engine. The conical drive assembly aligns with a conical recess in an adapter plate fastened to an input member of a transmission. Once the engine and transmission are aligned and suitably fastened together, the conical drive assembly drivingly engages the output member of the engine to the input member of the transmission.

Abstract: A hidden screw-pressing structure for a pipe connector being comprised of a plurality of "C" shaped engaging members, springs and rotation covers on a plurality of opened ends of the pipe connector; wherein, the opened ends each is formed to have a diameter-reducing wall, the external wall of each engaging member is formed to have the same tapering surface as that of the diameter-reducing wall, an inner screw-pressing wall of the engaging member is formed a straight pipe wall, one of the springs abuts on the top of the engaging member and is subjected to compression of one of the rotation covers, screwing in of the rotation cover compresses the spring to push the engaging member inwardly, the inner screw-pressing wall of the engaging member thereby is given with a function for reducing diameter, in this way the walls of the pipes to be connected are bound by the inner screw-pressing walls, therefore, the pipes to be connected are bound in a hidden mode in the pipe connector without damaging the pipes themselv

Abstract: A first shaft provided with a flange having a through bore is coupled to a second shaft provided with a flange having a blind bore aligned with the through bore in the flange of the first shaft using a coupling device including an adapting bolt having an external tapered surface and an axial hole open at the narrower end of the adapting bolt and a cylindrical sleeve element having an internal tapered surface corresponding to the external tapered surface of the adapting bolt, the adapting bolt being within the sleeve element. The coupling device is fitted in the aligned bores so that the narrower end of the adapting bolt is toward the flange of the first shaft and an end surface of the sleeve element is exposed. A tool is fitted in the axial hole in the adapting bolt and a force is applied to the tool tending to displace the adapting bolt relative to the sleeve element in the direction from the wider end of the adapting bolt toward the narrower end thereof.

Abstract: An assembly of two sets of universal mounts for interlocking with stock handlebar clamps to secure a larger diameter handlebar to a motorcycle or comparable vehicles. The two sets of universal mounts are used for mounting larger diameter handlebars to motorcycles or comparable vehicles. The two sets of the universal mounts are interlocked with the stock handlebar clamps. Each set of the universal mount has an upper mount and a lower mount. Each mount has a semi-cylindrical groove, where the larger diameter handlebar is fitted between the semi-cylindrical grooves of the upper and lower mounts respectively. Each lower mount has a protruding arch which is respectively positioned within the respective stock handlebar clamp, and thereby interlocks with the respective stock handlebar clamp.

Abstract: A clamp having a U-shaped clamp body which engages a profile such as a rectangular pipe on three sides, while a fourth side of the profile is engaged by a bolt which is secured by a nut and extends through conical holes in the free legs of the clamp body. Conical washers on the bolt engage the conical holes on the far side from the pipe, meaning that the bolt is located eccentrically in the holes. Tightening the bolt the nut makes the clamp body squeeze the top side and the bottom side of the pipe. The conical washers in the conical holes make the bolt squeeze the pipe in the direction of the back side of the pipe. The pipe is thus squeezed from all sides.

Abstract: For mounting a machine element having a bore coaxially on a shaft for rotation with the shaft, there are provided a first member having internal threads, and a split sleeve having external threads adapted to be mounted around the shaft and inside the bore. The threads of the split sleeve have apexes at a uniform diameter when unstressed. The first member is threaded on the external threads of the split sleeve. Also, a second member is spaced from the first member by an amount sufficient to allow the first and second members to embrace opposite sides of the machine element. The threads of the first member and the split sleeve are shaped to cause contraction of the sleeve into fast, gripping engagement with the shaft, as the first and second members frictionally clamp the machine element between these first and second members.

Abstract: A rotary body fixing device capable of mounting and removing a rotary body on a shaft easily and rapidly. The device has inner and outer elastically deformable rings and a pair of oppositely tapered rings for wedging between the inner and outer rings in a clamping position. Extraction bolt holes 4F for threaded engagement with extraction bolts 7 are formed axially through one tapered ring 4. The extraction bolts 7 come into abutment at their tip ends against an end face of the other tapered ring 5 to move both tapered rings away from each other. In an axially medial part of the outer peripheral surface of the inner ring 2 and of the inner peripheral surface of the outer ring 3, annular grooves respectively form stepped portions on both sides of the annular groove.

Abstract: Disclosed is a mechanism for the detachable attachment of a bladed wheel to a shaft of a turbomachine. The bladed wheel has a sleeve-like extension that faces the shaft. A fastening unit is arranged in the sleeve-like extension, the latter being circumscribed by a thicker wall bushing of a cylindrical recess of the shaft. A screw element is used as a locking element.

Abstract: A coupling/mounting system for securing a shaft to a sleeve or hub includes an inner insert or bushing and an outer insert or bushing. The inner bushing has a slot permitting its radial compression during insertion into the hub. One or more radially extending projections are provided about the cylindrical outer periphery of the inner bushing. The projections enter into engagement in a corresponding recess within the bore. The inner bushing has a tapered inner surface that contacts a corresponding tapered outer surface of the outer bushing. The outer bushing has a elongated slot that permits its radial compression about the shaft when the system is assembled. The outer bushing includes mechanical features which permit it to be drawn into engagement between the inner bushing and the shaft, and thereby to exert radial forces for securing the shaft to the bore.

Abstract: A post tip is provided for a mortuary cot. The post tip comprises a cup-shaped member including a bottom portion and a cylindrical wall surface extending upwardly therefrom. An elongated bolt extends upwardly through the lower end of the cup-shaped member and extends through a deformable cylindrical plug. The upper end of the bolt is threadably received by a plug compression member. When the tip is installed on the cot post, the cylindrical wall surface of the cup-shaped member embraces the lower end of the cot post and the cylindrical plug is received in the interior of the cot post. Threadable rotation of the bolt causes the plug to be deformed and expanded outwardly into engagement with the interior wall surface of the cot post. The Delrin construction of the cup-shaped member ensures that the lower end of the cot post will not cut or wear therethrough.

Abstract: A hollow bicycle crankshaft includes a hollow shaft assembly having a first shaft member fastened to a second shaft member, a hollow left crank arm, a hollow right crank arm, a tubular housing member, a first shaft bearing, a second shaft bearing, and a sprocket bracket. The first shaft member matingly engages the second shaft member. Non-mating ends of the shaft assembly are attached to respective hollow crank arms, where the shaft extends through an aperture in each arm. The union of the first and second shaft members is proximate the midsection of the constructed shaft assembly. The shaft assembly is housed within the tubular housing member. The first and second shaft bearings, disposed at each end of the housing member, secure the tubular housing member about the shaft assembly in coaxial and concentric alignment.

Abstract: A bearing assembly adapted to be mounted on a shaft, the assembly including a sleeve having a frustoconical outer surface and a bore adapted to be placed on the shaft; and an inner ring defining a second bore, the second bore having a first portion which is engageable with the outer surface of the sleeve and the second bore having a second portion adjacent the first portion and extending at an angle radially outwardly from the first portion.

Abstract: A tensioning assembly for connecting an outer component to a shaft. The tension assembly includes a double conical ring with a cylindrical circumferential surface and two oppositely inclined conical surfaces, and also includes two further conical clamping rings with each conical clamping ring having a conical circumferential surface which interacts with one of the conical surfaces of the double conical ring. Axial tensioning screws and axial forcing screws are uniformly distributed over the circumference of a pitch circle, such that the forcing screws are located at the same spacings and instead of the tensioning screws. At one location, a tensioning screw is provided outside the uniform spacings in order to ensure the correct alignment of the conical rings on the double conical ring in the circumferential direction.

Abstract: A bicycle front fork packing structure including a tapered ball bearing mounted around the top coupling tube of the front fork and connected between the vertical tube of the handlebar stem and the head tube and having a tapered center through hole, a tapered screw cap threaded onto the externally threaded bottom end of the vertical tube of the handlebar stem and covering the tapered ball bearing and having an inside annular groove, a split packing ring mounted within the tapered screw cap and the ball bearing and forced into engagement between the head tube and the top coupling tube of the front fork and having an outside annular flange forced into engagement with the inside annular groove of the tapered screw cap.

Abstract: A chair base connection assembly for connecting a pipestand to a chair base includes an outer sleeve having opposing flared ends, an inner sleeve having a tapered inner diameter for engaging the pipestand and an outer surface having a taper at an upper end for engaging an inner flared surface at the upper end of the outer sleeve and external threads at the lower end for engaging a tapered intermediate nut having an outer flared surface which engages an inner flared surface on the lower end of the outer sleeve. The chair base connection assembly of this invention provides a stable, strong, wobble-free connection between the base and the pipestand, while allowing greater dimensional variability of the components comprising the chair base connection assembly, thereby reducing the manufacturing costs.

Abstract: The component assembly (100) serves in a free from play connection of two components (1, 2) by a radially-expandable, conical clamping system (10) arranged in aligned bores (5, 6) of the first component (1) and the second component (2). The clamping arrangement (100) is intended to be clamped and released if inserted into a blind bore (5) of the first component (1). For this purpose, the outer sleeve (14) of the conical clamping system (10) has at one end a radial circumferential projection (17) that rests axially against the outside of the second component (2), while the other end of the outer sleeve (14) is cylindrical throughout and has a diameter that corresponds to the diameter of the bore configured as a blind bore (5) in the first component (1), and a coaxial threaded bore (7) is provided in the bottom (8) of the bore (5), the threaded bore having a smaller diameter than a through bore (12) that is present as a through bore (12) in the conical clamping system (10) and receives the clamping bolt (22).

Abstract: A modular support rail assembly that includes a rail having an open end with an internal wall surface and an elbow with facility at one end for mounting to a support, such as a building wall, and an opposing end with an internally threaded opening. An insert construction is disposed within the open end of the rail, and a fastener extends through the insert into the internally threaded opening in the elbow. An expansible ring is carried by the insert structure within the open end of the rail, and is responsive to compression of the insert structure upon tightening of the fastener to expand radially outwardly against and frictionally engage the internal wall surface of the rail. The rail is thereby firmly fastened to the elbow.

Abstract: A system for automatically centering and rigidly retaining a mixer shaft in a mixer drive. A hollow quill in a mixer drive is provided with an axial bore having a first diameter along a central portion thereof and tapering linearly and axially in opposite directions away from the central portion with increasing diameter to define a pair of opposed conical portions of the axial bore on either side of the central bore. A smooth-surface cylindrical mixer shaft inserted into the bore is retained by the tightening of upper and lower tapered cylindrical locks which are slidable along the mixer shaft and have conical outer surfaces which are matable with the upper and lower conical portions of the quill bore. The locks, when urged into wedged relationship between the shaft and the quill bore, automatically center the shaft in the quill in rigid retention. The upper end of the shaft is provided with a thrust plate secured by throughbolts into the quill to press the upper lock into locking relationship.

Abstract: A bicycle upright tube fastening assembly comprises a handlebar upright tube, a bolt, a tightening head,. an arresting tube, a torsion spring, a nut, a head tube, a from fork tube column, and a bearing set which is composed of a mounting seat, a ball bowl, a rolling ball slot seat and a ball nest. The mounting seat is provided therein with an upper tapered portion and a lower tapered portion. An upper fitting ring is received in the upper tapered portion while a lower fitting ring is received in the lower tapered portion. The ball bowl is provided with a straight center hole having at one end thereof a tapered protuberance which is engaged with the lower tapered portion of the mounting seat such that one end of the tapered protuberance urges the lower fitting ring of the mounting seat. The rolling ball slot seat is urged by the head tube when a pressure exerting on the mounting seat is transmitted to the ball bowl and the ball nest which is located between the ball bowl and the rolling ball slot seat.

Abstract: First and second construction elements, such as claws of a timber grab, are mounted for relative rotational movement with respect to each other by an axis joint. The axis joint includes a bearing bushing an a bearing shaft. The bearing shaft has inner conical surfaces which cooperate with outer conical surfaces of conical washers which are held in place by a screw and nut. Under the influence of the screw and nut the components of the axis joint are held together so that there is a butt connection. The bearing bushing contains a slide bearing surface with internal resilient sealing lips, and annular openings are provided so that the sealing lips can expand freely upon insertion of the bearing shaft into the sleeve and resiliently abut the bearing shaft. When inoperative the sealing lips have an inner diameter less than the outer diameter of the bearing shaft by about 0.1-1.0 mm.

Abstract: A bearing assembly including an improved clamping arrangement for effecting securement to a rotating shaft. The bearing assembly includes a bearing inner ring member and a bearing outer ring member having a plurality of bearing elements located therebetween. A second extension portion extends from the greater diameter end of a tapered inner surface defined in the inner ring member, the second extension portion defining a circumferential receiving groove. A tapered adapter having a tapered outer surface, generally complementary to the tapered inner surface, is received in the inner ring member. The tapered adapter includes a first extension portion extending from the greater diameter end of the tapered outer surface and defining outer threads thereabout. A nut is provided having a first axial portion defining inner threads for engaging the outer threads of the first extension portion.

Abstract: An elevationally adjustable folding stage has a frame which folds from a storage position to use position. Stage panels form a stage surface and are reversibly and interchangeably mounted. Connectors insert into passages from the stage frame through the stage panels and provide quick connection without additional connector elements. The connectors rotate within the channel and compress an annular sleeve member axially, forcing the sleeve outward to engage the sides of the passage and secure the stage panel to the stage. The connectors are at or below the upper stage surface and are accessible axially from above by an actuator tool.

Abstract: A novel quick release fastener system for efficient and reliable attachment, disengagement and reattachment of one or more work pieces secured by the fastener system. The fastener system includes a bolt and a nut. The bolt includes a shank with a head on one end with a leading end on the shank opposite the head. The nut has a wall which generally defines a bore having opposed edges which define a slot at least partially extending through the wall. Displacement structures are provided on the nut which provide a mechanical advantage in translating rotary and axial forces into circumferential and radial forces. Threads are provided on at least the nut for promoting axial displacement for engaging and disengaging the displacement structures. Threaded engagement and disengagement of the displacement structures deform or release the wall of the nut resulting in displacement of the opposed edges of the wall. In one embodiment the nut includes a constricting gripper which is threadedly engaged with a driving body.

Abstract: A handle mounting structure in a fishing reel, which spreads open and deforms a collar by means of the taper action of a tapered engaging surface formed in the end portion of a handle shaft to thereby be sure to prevent the handle shaft from being loosened and clattered in the rotational direction thereof. The handle mounting structure includes: a drive shaft having a drive gear and a through-hole; a handle shaft to which a handle is fixed and which is non-rotatably fitted into the through-hole of the drive shaft; a tapered engaging surface formed on an end portion of the handle shaft; a collar deformable radially outwardly and fitted into the through-hole of the drive shaft so that one end of the collar is confronted with the tapered engaging surface; and a threaded member engageable with the handle shaft.

Abstract: A bearing assembly includes an improved clamping arrangement for securement to a shaft. The inner ring of the bearing assembly includes a tapered inner surface generally complementary to a tapered outer surface of a tapered adapter. Each of the tapered adapter and the inner ring member include an axial extension portion which are situated to be proximate one another during use. A nut is provided interconnecting the extension portions such that relative axial movement may be effected between the inner ring member and the tapered adapter. As a result, the bearing assembly may be secured to or removed from the shaft.

Abstract: An improved assembled structure of a handlebar stem assembly and a fork of a bicycle wherein a handlebar stem assembly is inserted into a steer tube; the handlebar stem of the handlebar stem assembly is provided with a step which abuts against a pressure adjuster on a top end of the steer tube such that the pressure adjuster exerts a downward force to secure the upper bearing assembly in place; by relative movement between the cooperative tapered contact surfaces of the handlebar stem and tongue-shaped tube placed below the handlebar stem, the outer sides of the handlebar stem and the tongue-shaped tube abut against the inner wall of said steer tube in order to secure said handlebar stem to steer tube and obtain axial and radial positioning of the handlebar stem. The handlebar stem can be provided with external threads rather than a step for being engaged with a locking nut which acts as a step for abutting against the pressure adjuster.

Abstract: A concentric coupling and method for making the same are taught which include a cylindrical block which is concentrically bored and cut into an annular L-shaped segment having an L-shaped notch and a semi-cylindrical mating segment which is received into the notch. The coupling concentrically joins a pair of shafts together.

Abstract: A clamping mechanism (12) connects a tubular shaft (4) to a journal (11). In its bore, the tubular shaft (4) has a profile which is engaged by the journal (11) by a corresponding counter-profile on its outer face along a length of overlap. The profile and counter-profile are tensioned relative to one another by the clamping mechanism (12). The clamping effect is achieved by taking advantage of the possibility of deforming the cross-section of the tube.

Abstract: A collet assembly for telescoping pole structures and the like including inner and outer collet members. The inner collet member is mounted upon a first pole and includes a plurality of integral flexible fingers. The inner collet member is staked to the pole by deforming small sections thereof into spaces between the flexible fingers. The outer collet member has a tapped interior threadedly engaging a tapped exterior portion of the inner collet member, which threaded portion is spaced inward from the free ends of the flexible fingers. An interior peripheral portion of the outer collet member is tapered to urge the fingers radially inwardly when the outer collet member is threaded onto the inner collet member. A collet ring is positioned within an annular recess collectively formed by recesses provided along the interior periphery of each of the fingers and is pressed against a second tube telescoped into the collet assembly when the outer collet member is tightened onto the inner collet member.

Abstract: A fastening device is capable of holding securely the head tube and the handlebar sleeve in the front fork of a bicycle. The front fork is provided respectively at both upper end thereof and lower end thereof with a restraining ring which is of an arcuate construction and is capable of bringing about an automatic calibration so as to ensure that the bearing sets of the front fork cooperate properly and rotate smoothly.

Abstract: The frictional type connector 10 includes an inner ring 20, an outer ring 30, and bolts 40. The outer surface of the inner ring 20 is formed into a tapered surface 23 which decreases the diameter from a flange portion 21 toward the other end of the inner ring. The outer ring 30 has an inner tapered surface 31, so that the tapered surface can face the outer tapered surface 23 of the inner ring 20. The taper angle .theta.i of the tapered surface of the inner ring 20 is larger than the taper angle .theta.o of the tapered surface of the outer ring 30.

Abstract: A clamping arrangement designed to join an outer component having a cylindrical recess to an inner component having a cylindrical outer peripheral surface which is concentrically arranged in the cylindrical recess. The clamping arrangement includes an inner cone element, an outer cone element and a center cone ring which cooperates with one another to clamp the inner component in the cylindrical recess.

Abstract: A composite guide rail for bellows type cameras is disclosed in which the composite rail is comprised of two rail pieces. A multi-fingered connecting insert has a base secured to the end of the first rail while the fingers conform to an inner cavity in one end of the second rail and can be slidably inserted-therein. A wedge having a threaded central bore is movably disposed between the plurality of fingers and is connected to a thumb screw by a threaded connecting rod, the thumb screw located at the opposite end of the first rail from the connecting insert. When the fingers are inserted into the cavity of the second rail and the thumbscrew turned in one direction, the fingers are expanded by the wedge being drawn therebetween such that the fingers come into pressing engagement with the walls defining the inner cavity of the second rail. When assembled, the first and second rails take on the aspect of a single rail.

Abstract: The invention includes a light-weight, high pressure cylinder, and a method of producing such a cylinder. The pressure cylinder uses a composite pressure barrel for maintaining and distributing fluid pressure therein. The composite barrel has tapered ends for retaining a pair of end caps. A split tapered collar having a taper matching that of the tapered end of the pressure barrel is provided to lock the end caps to the pressure barrel. The tapered collar has a threaded outer diameter for receiving the threaded end cap. The combination of the tapered collar and the tapered end of the pressure barrel provide a wedge when the end cap is threadedly engaged to the collar. By applying torque to the end cap, the two tapered surfaces are forced together and the end cap is locked to the composite barrel to maintain internal fluid pressure.

Abstract: An internal conical connecting device for connecting machine components comprising an inner bushing with a first set of parallel conical grooves, and an outer bushing with a corresponding second set of parallel conical grooves. The first and second sets of parallel conical grooves are engageable for wedging a hub into locking connection with a shaft upon axial movement of the outer bushing relative to the inner bushing. The first and second sets of parallel conical grooves have symmetrical segments removed to facilitate assembly and disassembly of the connecting device. A flat ring or integral flange is fixed to the inner bushing, and threaded members extend between the flat ring and the outer bushing. The flat ring and the threaded members are used to axially displace the inner and outer bushings relative to each other and generate a strong normal force for clamping and supporting the connected hub on the shaft.

Abstract: An anti-deforming device for a steerer tube includes a tubular element, a first element, a second element, a driving element and a cap, the tubular element having two ends each of which has a tapered periphery for respectively engagement with a corresponding tapered skirt of the first element and the second element, the tubular element having a plurality of slits defined therein and having a plurality of protrusions and flanges extending outwardly from a periphery thereof, the driving element having a threaded rod passing through a plane hole defined in the second element and threadedly engaged to a threaded hole defined in the first element to force the protrusions and flanges to contact against an inner periphery of the steerer tube and the cap mounted to a top of the steerer tube by passing a bolt through a hole defined in the cap and threadedly engaged to the threaded hole of the first element.

Abstract: Device for connecting a machine element to a structural member, which is movable about a longitudinal axis thereof, so that the machine element and the structural member are secured against relative rotation, includes a tension band firmly connected to a machine element and embracing more than 180.degree. of a circumference of the structural member, and a thrust piece having an inner side matching the circumference of the structural member, the thrust piece extending across a part of the circumference of the structural member other than a part thereof embraced by the tension band, and at least one clamping device to which the tension band is fixed for radially clamping the thrust piece against the structural member.

Abstract: A graft fixation device and methods for using them. The device comprises a collar disposed about a central axis and having a threaded interior surface, an optionally threaded exterior surface, first and second annular drive elements disposed concentrically within the collar and externally threaded for engagement with the collar, and a graft securing element disposed concentrically between the drive elements. The collar and first drive element include driver elements at their respective, first ends for receiving a rotatable driver. The first drive element is rotatable relative to the collar for axial advancement toward the second drive element such that the graft securing element is sandwiched between the drive elements to form a unitary structure. The collar is rotatable relative to the unitary structure of the drive elements and graft securing element for moving the graft axially to apply a desired axial tension thereto.

Abstract: The present invention teaches a simple and convenient hose end expansion device which slides within the hose end and is then quickly expanded by means of mechanical or hydraulic pressure, thereby stretching the hose end to a larger diameter. The device is then quickly collapsed and removed from the hose end, and a barbed coupling is inserted within the hose before it has sufficient time to return to its original diameter. As the hose returns to its original diameter, the hose coupling becomes secured within the hose end. External hose clamps may be added for increased security and safety.

Abstract: A flanged linear ball bearing is provided with a linearly translocatable flange which can be secured to a flange support. A gap is formed between the flange and the ball bearing proper and an intermediate member is adapted to fit in the gap so as to secure the flange to the outside of the bearing proper. The flange is adapted to be secured to a flange support which extends around the bearing proper.

Abstract: A chucking device for the torque-transferring fixation of a hollow shaft to a shaft by a cone chucking device is provided. The cone chucking device clamps the hollow shaft and the shaft together in a frictionallly connected manner can be operated by axial clamping screws. An element of the cone chucking device extends in front of a face of the shaft extending transversely to the axis of the shaft and is interlockingly fixed on the shaft to secure against relative rotation.

Abstract: The invention is a connector for square tubing used in a system of construction and includes many designs but all having a plurality of orthogonal arms connected at a common point and including a wedge block at the end distal from the common point. The arm and wedge block have complementary sloping surfaces that expand the wedge block as it is moved up the slope by a draw bolt which enters the side wall of the arm, crosses the primary longitudinal axis of the arm and exits proximate the opposed wall where it engages the wedge block. The expanded wedge block secures tubing in place over the arm to the arm. The hex head draw bolt is recessed in the arm of the connector.

Abstract: In a handle stem fixing device in a bicycle wherein a fork stem 10 is rotatably inserted into a head pipe 20 of a frame 2, the upper portion of the fork stem 10 projects out from the upper end of the head pipe 20 and a stem-binding cylinder 30 is fixed on the upper portion of the fork stem 10 so as not to rotate. Many small protrusions are formed on the outer surface of the fork stem 10 where is pressed by the stem-binding cylinder 30. The coefficient of friction between contact surfaces of the fork stem 10 and the stem-binding cylinder 30 increases because of the protrusions. The coupling power acting between the fork stem 10 and the stem-binding cylinder 30 can thus be improved.

Abstract: A bicycle steering assembly is disclosed. The assembly has a threadless steerer tube passing through a head tube. Bearing assemblies are mounted at either end of the steerer tube. A stem assembly is fastened to the upper end of the steerer tube with an expansion bolt, which is preferably a wedge clamp, inside the bore of the steerer tube. The stem has an integral sleeve which extends over the upper end of the exterior surface of the steerer tube. The sleeve reinforces the steerer tube. The lower end of the sleeve is threaded to accept a threaded locking collar. Pre-load on the bearings can be adjusted by turning the locking collar. The stem assembly has few parts, fastens securely to the steerer tube, is robust and does not have projecting bolts which could harm a rider.

Abstract: A locking member being provided with a parallel to a side face running primary recess within an internal or external rim surface. This primary recess is dividing the member into a solid supporting portion and a first portion having a side face provided with a locking member, the depth of the recess being such that the member formes one integrated single piece. The side face of the first portion is divided by secondary cuts carried through a central point of symmetry forming a number of sectors corresponding to the number of desired locking members, the secondary cuts at the same time constituting gripping surfaces for tools for the manipulation and use of the member. The locking member also provides internal or external locking to an internal or external threaded but also non-threaded surfaces.