Abstract: A coupling fixture provided with an outer ring having first and second tapered surfaces, an inner ring having third and fourth tapered surfaces, a wedge-like ring nut interposed between the outer and inner rings and axially inwardly thereof and having tapered surfaces engageable with the first and third tapered surfaces. A wedge-like ring washer is interposed between the second and fourth tapered surfaces and axially outwardly thereof and having tapered surfaces engageable with the second and fourth tapered surfaces. Screw bolts are screwable into the ring nut to expand the outer ring in diameter and contract the inner ring in diameter, each cone angle of the tapered surfaces of the washer and of the tapered surfaces engageable therewith is made larger than that of the cone angle of the tapered surfaces of the ring nut and the first and third tapered surfaces engageable therewith and makes the washer more readily removable from the outer and inner rings when the screw bolts are loosened after being tightened.

Abstract: A machine for mounting electronic components on a printed circuit board has a turret assembly which carries a plurality of tool assemblies. An encoder is directly connected to the turret shaft of the assembly by screwing the end of the encoder drive shaft into an expandable hub shaft locking device.

Abstract: An internal combustion engine comprising an engine block, a crankshaft rotatably supported by the block and including an axis, a first portion which is cylindrical in shape, which is concentric with the axis, and which has a uniform radius, and a second portion extending from the first portion in concentric relation thereto and having a radius less than the radius of the first portion to define a radially extending shoulder on the first portion, a flywheel including a surface engaging the shoulder, and a central aperture receiving the second portion of the crankshaft and having a radius less then the radius of the first portion, and bolts extending through the flywheel and into the first portion of the crankshaft for securing the flywheel to the crankshaft.

Abstract: An apparatus including a plurality of jack bolts which are threadedly engaged with openings in a flange on a fastener to stress a shank part of the fastener. The flange can be a collar retained on a shaft by a retainer, a nut on a threaded end of a bolt, or the head portion of a bolt. The jack bolts can be arranged in a flange on an end of a tension rod to stress arbors against opposite sides of a roll sleeve to form a roll assembly for use in a rolling mill. The apparatus includes structure for preventing escape of the jack bolts from the flange which is particularly advantageous when the apparatus is secured to moving machinery where the presence of escaped jack bolts could cause damage to the machinery.

Abstract: A clamping set is provided wherein elastic deformation of the peripheral collars is no longer necessary to produce engagement of the same. The screw ring can be pushed across the cylindrical outer peripheral surface of the outer taper ring until its inwardly projecting peripheral collar bears against the outwardly projecting peripheral collar of the outer taper ring. These can then be pushed together across the inner taper ring from its thin-walled end until the inner thread of the screw ring comes into contact with the external thread of the inner taper ring and fastening begins. All interacting parts can, thus, be designed to be substantially stronger, since they no longer need to be deformed to produce engagement. Accordingly, the forces which can be applied are also greater.

Abstract: A mounting device can mount a machine element having a bore coaxially on a shaft. The mounting device has a first member having internal threads. Also, included is 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. The mounting device also has a second member spaced from the first member by an amount sufficient to allow the first and second members to embrance the machine element. The threads of the first member and split sleeve are shaped to cause compression of the sleeve as the first and second members embrace the machine element.

Abstract: An apparatus for rapid interchange of drive head units on a power tool motor unit is provided by forming a flared lip on the first of the two housings to be connected; capturing a coupling nut behind the flare with a split clamp ring; forming a bore on the second housing into which the flared lip and clamp ring of the first housing will fit; forming a positioning stop, within the bore, against which the flared lip of the first housing will be clamped; and providing a coupling device on the second housing to which the coupling nut of the first housing will be coupled to join the two housings.

Abstract: A threaded bush assembly for receiving and coupling a shaft to a rotatable hub includes a tubular sleeve member which is located within the rotatable hub and a tubular bush member adapted to be received in either end of the sleeve member. The bush member has a central bore in which the shaft is received and is axially moveable relative to the sleeve member by means of screw threaded members. The inner circumferential surface of the sleeve member and the outer circumferential surface of the bush member each have a helical thread formed thereon. The cross-section of both threads is defined by a pair of mutually opposed tapered surfaces. The two threads are screw threadedly engageable with one another, yet define a gap therebetween which enables relative axial movement of the two threads with respect to one another such that upon axial movement of the bush member relative to the sleeve member, one tapered surface of one thread wedges against the facing tapered surface of the other thread.

Abstract: In the clamping assembly of this invention, whereby a rotary cutting tool is concentrically clamped to an untapered shaft that carries and drives it, a sleeve-like radially elastic collet, received in a bore through a hub-like tool body part, has a threaded end portion which projects axially beyond the bore and on which a nut is rotatable. The collet has an untapered radially inner surface and a tapered radially outer surface that progressively increases in diameter from the thread to its opposite end. The bore, all along its length, defines a matingly tapering inner wedging surface in the body part. The collet is confined to axial shifting relative to the body part. The nut is confined to rotation by a radially outwardly projecting circumferential flange on it, overlain by an annular captivating plate secured to the body part.

Abstract: An adjustable base for use with a rail post or section provides an upwardly facing socket portion and an adjustable wedge element associated with the socket portion. A screw associated with the wedge element and the base serves to adjust the position of the wedge relative to the base and to project the wedge into engagement with a post received in the socket portion.

Abstract: A faucet handle assembly is described for replacing a handle on a faucet valve stem, which can mount on a wide variety of types of stems. The assembly includes a pair of jaws (30, 32, FIG. 1) having inner surfaces for engaging opposite sides of the periphery (22) of the valve stem and having outer camming surfaces (42, 43) that can be pushed together. The assembly also includes a faucet handle (12) with a hole in the top for passing a screw (28) that screws into a threaded hole of the valve stem, and having a cavity (44) for receiving the jaws. The cavity has camming surfaces (54, 56) that engage the jaw camming surfaces, so as the screw is tightened the jaws are pressed tightly against the valve stem peripheral surface.

Abstract: The pump comprises a stator constituted by an alternating sucession of stator plates (22) and stator rings (21) defining a sequence of compression chambers (20), and a rotor assembly comprising two shafts (24, 25) each having a compression lobe (28) in each of the compression chambers (20), with the compression lobes being placed on and fixed to their shafts during assembly of the pump, thereby enabling the axial clearance between each lobe and the adjacent stator plate to be individually adjusted, with each lobe being constituted by a body (29) and a clamping plate (30) which is fixed to the body by screws (34) which compress a set of two conical rings (32, 33), one of which (33) penetrates into the other while being compressed radially, thereby fixing the lobe in place. The assembly melthod consists in using a assembly plate (23) having a portion of extra thickness j penetrating into the stator ring over a distance corresponding to the desired clearance between the lobes and the stator plate (22).

Abstract: A clamping arrangement includes taper sleeves which are movable axially towards each other and upon movement in a specific direction open outward radially, so that an outer component can be clamped on a shaft. The axial displacement of the taper sleeves towards each other takes place by means of a screw sleeve with threads of differing pitch, engaging in corresponding threads on the ends of the taper sleeves lying outside a clamping region. The clamping can be produced or released by turning the screw sleeve in one direction or the other.

Abstract: The invention relates to a device for affixing cutter drums on an apparatus designed to cut trenches in the ground.The driver includes a revolving plate 4 disposed perpendicular to its axis and to the end of the latter, the plate having on its periphery a convex polygonal shape 9. A cutter drum 8 is provided with a portion 8a including a central hollow of concave polygonal shape 10 corresponding to the convex polygonal shape 9 of the plate 4 and of slightly greater dimensions. Bolts 11 unite the cutter drum 8 to the said plate 4 such that the rotational driving of the cutter drum 8 by the plate is performed through the medium of the aforesaid polygonal surfaces 9, 10 which come into engagement with one another.

Abstract: An bushing for securing machine elements. the two-piece bushing includes a body member having a central bore for receiving a shaft or the like and a flange which is rotatable with respect to the bore. The flange includes a plurality of bores for receiving securing means for securing the bushing to a hub or the like and a ridge portion for engaging at least a portion of the body member such that, when the securing means are tightened, the bushing and hub are drawn together. In the preferred embodiment, the outer surface of the end of the body member and the inner surface of the flange have complementary grooves therein for receiving a plurality of steel balls. When the balls are inserted within the groove, a ridge is formed which locks the flange and body member together in the axial direction. In addition, the bushing may include a ridge portion between the body member and the flange for preventing axial movement in at least one direction.

Abstract: A flexible hub apparatus for securing a power takeoff element to a shaft includes a hub formed of resilient material and having a first end and a second end and a hub spacing unit for selectively moving the hub between a shaft removal position and a shaft clamping position. The hub defines an inner circumference for receiving the shaft therein for clamping engagement by the hub. The first and second hub ends are movable relative to one another between the shaft clamping position in which the effective inner circumferential extent of the hub is such that the hub clamps the shaft and the shaft removal position in which the effective inner circumferential extent of the hub is such that the shaft is freely removable from the hub. The hub spacing unit includes a movable member disposed between the first and second hub ends for selective surface-to-surface engagement therewith and at least one of the engagement surfaces is tapered.

Abstract: A device for securing a first machine part to a second machine part having a first contact surface and a second contact surface. The first contact surface has at least one external sleeve portion. A threaded locking member cooperatively engaging the sleeve portion is actuatable relative to the sleeve portion to frictonally engage the first and second contact surfaces.

Abstract: An apparatus having two slide supports, adjustable with respect to one another, which have attachment surfaces for attaching two holding devices. The balance of the holding devices attached to the attachment surfaces of the slide supports are compensated by having the slide supports each divided into a slide support base plate and an attachment plate with the attachment surface. The attachment plates are connected in a limited adjustable manner with the slide support base plates under spring tension using spring-stressed bolts oriented perpendicular relative to the attachment surfaces. The attachment plate of the first slide support is adjustable in a limited manner through use of an adjustment bolt oriented perpendicular relative to the direction of adjustment of the slide supports on the coordinated slide support base plate.

Abstract: The tool for permitting a wrench to turn a harmonic balancer and crank shaft connected to the same. The tool employs a base which may be fixed to the harmonic balancer. The base includes an opening bored through the base to form a cavity. The cavity includes wall portions having a faceted surface and a threaded surface spaced from one another. The threaded member engages the threaded surface of the cavity and extends through the opening into engagement with the crank shaft.

Abstract: A linear actuator comprising a stepping motor having a hollow motor shaft prevented from moving in a thrust direction and a flange on either shaft end, a screw extending through the hollow shaft, a nut connected to the motor shaft with a coupling and rotated to linearly move the screw. A plate member is mounted upon screw and a bar so as to connect them to each other, said screw and said bar passing through and being supported by a motor flange, said bar moving through a bearing of a holder mounted to the plate member such that the holder is in parallel to the screw.

Abstract: A clamping ring for clamping a member such as a rotor on a shaft comprises a ring member formed by a plurality of ring segment portions which are displaceable relative to each other in the peripheral direction of the ring member, and spring elements disposed in the respective gaps between adjacent ring segment portions, thereby connecting the ring segment portions together. The clamping ring is fitted into an opening in the member such as a rotor, and the clamping action is produced by a variation in the inside and/or outside diameter of the ring member, by virtue of the ring segment portions being displaced relative to each other in the peripheral direction only in the plane of the ring member.

Abstract: An eccentric assembly has a one-piece mainshaft with a groove extending part way around its periphery. An eccentric ring has an off-center opening which receives the mainshaft, with part of the ring received by the groove. An arcuate-shaped insert with a tapered hub is received by the ring opening between the shaft opposite the groove and a frustoconical portion or the ring opening so as to claim the ring, shaft and insert together.

Abstract: A device for the production of a locking or braking effect between two elements, such as a shaft (20) and a hub (21), which display two concentric, cylindrical surfaces, which device includes a sleeve, made in one piece, for axial insertion between the surfaces. The sleeve is circumferentially divided into sleeve sections, which are separated by, at least partially, axially directed rows of holes in the body wall of the sleeve, and which are connected to each other by bridges, formed of the remaining wall material between the holes in the said rows. The body wall is provided with weak zones, designed to, through compression, project radially inwards and outwards into engagement with the said surfaces in order to achieve the locking and braking effect.

Abstract: A flat member (22) is attached to a lower end of a support leg (14) so that it extends horizontally from the support leg (14). An expansion clamp assembly (24) is carried by the member (22). This assembly (24) is plugged into the tubular lower end portion (26) of the support leg (14). Wing portions (58) of a nut wing washer (50) are deflected by the insertion of the assembly (24) into the tubular portion (26), and the wings (58) are biased into a tight gripping contact with the inner tubular portion (26). This secures the nut wing washer (50) and a nut (46) against rotation. Then, the member (22) is rotated, relative to the support leg (14), causing a relative endwise movement of a stud (28) carried by the member (22) into the nut (46).

Abstract: A generally cylindrical shaft has a longitudinally extending flat area along its end section. A plastic member mounted on the shaft has a longitudinal bore complimentary in shape to and fitting around the shaft end section. The bore includes a longitudinally extending recess projecting radially outward from the flat area of the shaft. A locking sleeve fits within the bore and around the shaft and includes a generally U-shaped portion received in the recess. The U-shaped portion is discontinuous intermediate its ends, providing first and second longitudinal portions adjacent its ends. A screw passes through the first longitudinal portion and threadedly engages the second longitudinal portion for drawing the portions together.

Abstract: A structural mounting assembly for mounting a power transmission member, such as the disk portion of a gear, to a shaft wherein the disk portion has an open-ended quill extending therethrough sized to snugly receive a bushing that has one end adapted to snugly receive the extremity of the shaft and the other end arranged to be connected to an adapter mountable at the other open end of the quill.

Abstract: A marine drive (1) for a boat (3) includes a longitudinally extending propeller shaft (18, 20) which concentrically carries the hub (21, 22) of a propeller (10, 11) at the aft end of the shaft, with the shaft serving to rotatably drive the hub. The shaft is provided with a threaded outer peripheral portion (48, 36) at its end. The hub is provided with a rearwardly disposed annular flange (44, 32) and an annular rearwardly facing recess (45, 33) having a threaded outer periphery (47, 35). A dual-threaded nut (49, 37) is removably disposed within the hub recess. The outer nut threads engage the hub threads, while the inner nut threads engage the threads of the propeller shaft. A device (56, 43) is provided for securing the nut against threadable rotation in its mounting. The inventive concepts may be utilized with a single or dual propeller system or any other hub and shaft connection.

Abstract: A detachable leg assembly for an object includes a substantially cylindrical leg having a recess adjacent a first end thereof and a tapered leg-receiving chamber, larger than the cross-sectional area of the leg, having a locking projection on one wall thereof adapted to engage the recess when the leg is positioned in the chamber; a wedge-shaped holding member adapted, when positioned within the chamber, to substantially fill the space between the leg and the wall of the chamber; and means for anchoring the holding member in position.

Abstract: The connecting device for a wheel includes an outer ring having axial slits, an inner tapered surface, an inner threaded surface formed adjacent the maximum inside diameter end of the tapered surface, and an outer peripheral surface. A split inner ring having a tapered surface complementary to said tapered surface of the outer ring placed on the shaft and includes an annular groove formed at the maximum outside diameter end side of the inner ring tapered surface. A nut, having a threaded surface, is threadably engaged with the threaded surface of the outer ring. The nut includes annular projection fitting into the annular groove in the inner ring and has a seating surface perpendicular to the shaft.

Abstract: A device for securing a first machine element to a second machine element comprising a clamping sleeve disposed between said machine elements having first and second opposed clamping surfaces forming opposing angles .alpha. and .beta. with the axis of said sleeve, one of the machine elements having complementary clamping surfaces confronting and engaging said first and second clamping surfaces, the angles (.alpha., .beta.) formed between the sleeve axis and said opposed clamping surfaces being smaller than the friction angle in each associated clamping contact whereby relative rotation of said sleeve and one of the machine elements produces a clamping action over substantially the entire length of said sleeve.

Abstract: A device for anchoring one end of at least one tensioned cable or bar, in particular for a prestressed concrete structure, comprises an anchoring head having at least one conical bore through which the cable or bar is passed, and a set of conical keys located within the bore for clamping the cable or bar therein. A sleeve is attached to the cable or bar at a distance from the largest end face of the conical keys, preferably by drawing. A spacer tube is placed around the cable or bar between the conical keys and the sleeve. The spacer tube cooperates with the sleeve in order to maintain the keys within the conical bore and in order to prevent any relative displacement between the cable or bar and the conical keys in the direction of slackening of these latter.

Abstract: For the purpose of fixing a capstan fashioned in light weight structure as a hollow cylinder having a perforated generated surface on the shaft stub of a drive motor for a magnetic tape recorder means, the shaft stub being composed of a ceramic material, the capstan has a bearing sleeve. At its end at the motor side, this bearing sleeve forms a guide ring which is narrowly toleranced with respect to the outside diameter of the shaft stub; at its opposite, outer end, it includes a threaded bore for the acceptance of a tensioning nut having an outside thread; and, in the transition region from the guide ring to the threaded bore, it has a tensing or clamping lip which wedges against the shaft stub in rotational-symmetrical fashion when the capstan is mounted on the shaft stub, deforming under the pressure of the tensioning nut.

Abstract: A steel cap for steel sets in mining support structures is made of a hollow sectional profile having a certain length. A tip is arranged as an insert at one end of the sectional profile. A fork is arranged as an insert at the other end of the sectional profile. Each insert is formed as a plug-in connection. The plug-in connection is provided with a hold free of play in a correct position. For this purpose each insert has at its end facing the sectional profile, a plug with a cross-section corresponding to that of the sectional profile, and at least one surface inclined relative to the longitudinal axis of the steel cap. At least one movable wedge element is arranged for cooperation with each inclined surface. A wedge drive permits driving the wedge element or elements into or out of a locking position relative to the respective inclined surface.

Abstract: A rod-piston connection uses a split ring, having two or more segments, provided with a plurality of shallow internal grooves which are adapted to mate with a corresponding plurality of shallow grooves on the piston rod, the outer periphery of the split ring having a tapered surface extending over the entire width of th split ring and adapted to mate with a corresponding wide tapered surface defined in a bore of a compression bushing which has a peripheral surface provided with threads which engage with an internal threaded surface in a cavity in the pistion. By applying a threading torque to the compression sleeve, a force is generated by the two tapered surfaces to force the compression sleeve into better contact with the pistion and to force the split ring into a better contact with the piston rod.

Abstract: An eccentric drive mechanism includes two shafts that are coupled to a wheel-like drive member such as a pulley, with one of the shafts being in offset relation to the other shaft and the central axis of the drive member. Each shaft represents inclined, flat wall portions in mutual inter-engagement, and the wall sections are releasably brought into a position of wedging contact with each other and to the drive member in order that the rotative position of one of the shafts is retained in a certain, predefined orientation relative to the rotative position of the other shaft and to the drive member. The drive member is supported on both sides to avoid imposition of cantilever-type loadings, and the mechanism can be readily disassembled and re-assembled when desired to realign and reposition the rotative orientation of the two shafts relative to the drive member. The eccentric shaft is coupled to a sway bar of the header for oscillation of the sickle.

Abstract: A lid for closing an automobile body recess, particularly a filler inlet compartment lid for a motor vehicle, is pivotally connected by means of a hinge, a hinge arm being fastened at the body recess. In order to, on the one hand, achieve a surface transition from the lid to the adjacent outer wall of the body that is flush with the shell of the body and, on the other hand, ensure a surrounding, constant gap between the lid and the body opening, the hinge arm that faces the body recess is held in position at the body recess, by an adjusting device.

Abstract: A sucker rod string using composite rods is provided with socket units. The socket units are all box end units and are connected together with couplers having pin ends. Each of the socket units has a small angle tapered bore. Wedges between the rods and the tapered bore of the socket unit are prestressed by a threaded plug within the box end to a load equal to or greater than the design working load of the string.

Abstract: A shaft coupling comprising a joint element and two rings. The joint element has internal cylindrical parts, an external cylindrical part and a base connecting portion. The base connecting portion connects the base ends of both internal cylindrical parts and the external cylindrical parts. The rings are inserted into annular cavities enclosed by the internal cylindrical parts, external cylindrical parts and the base connecting portion. The internal cylindrical parts have tapered outer surfaces. The rings have tapered inner surfaces. The two rings are axially connected by set bolts. When the rings are tightened, the inner surfaces of the rings press the internal cylindrical parts and the outer surfaces of the rings press the external cylindrical parts.

Abstract: Centrifuges are known which have a working head placed on a shaft driven by a motor, and in which a longitudinally slotted sleeve is disposed between the shaft and a central bore in the working head. This sleeve is expanded against the bore by a conical spreader driven by a threaded element screwed onto the end of the drive shaft. To create a tight and wobble-free coupling between the working head and the drive shaft of the centrifuge which will be secure even after long use and frequently changing torque, but which will assure easy release, the shaft has a tapered end and on this end, which reaches into the central bore of the working head, is seated the spreader, which is in the form of a bushing with a tapering bore, and the threaded element has on its outer circumference projections which engage indentations in the spreader.

Abstract: A coupling device for two flanged shaft ends is disclosed. A tapered pin bolt having a conical shank is employed within a complementary, internally tapered expansion sleeve having longitudinal slit. The pin bolt and sleeve extend through aligned bores provided in the flanges. The pin bolt is externally threaded on its opposite ends extending from the conical shank. A nut having an internal, axially extending and pin arrangement is mounted over each respective end of the pin bolt.

Abstract: A fastening device for adjustably mounting a drawer front plate, a includes a suppporting part arranged at each side of the drawer and having a fastening flange aligned vertically to the front plate and a holding flange aligned parallel to the front plate. The holding flanges extend at angles with respect to the fastening flanges. Holding parts are fastened to the front plate by means of screws. The holding parts include hooks that are engageable into the holding flanges. A tightening member is held at each supporting part. The tightening members are pressable against the holding parts and thus provide a bracing engagement between the holding parts and the supporting parts.

Abstract: An annular clamping member adapted, for example, to clamp a gear or a pulley to a plain shaft has a ring of alternately arranged primary and secondary sections (1 and 2) mutually interconnected by means of inclined ring portions (12) which, by a forced mutual displacement of the primary and secondary sections, are caused to change their inclination whereby an increase or decrease of the diameters of the clamping member is obtained.Such a clamping member may be used for clamping a transmission element exactly coaxially to a shaft or may be formed as a hub of such a transmission element.

Abstract: A pair of relatively telescoped inner and outer sleeves are provided and the inner sleeve includes first and second end portions. The second end portion of the inner sleeve includes at least one generally radial slot formed therethrough and defines a step recess opening radially outwardly of the inner sleeve and longitudinally therealong outwardly of the first end of the inner sleeve. The outer sleeve defines a radially inwardly opening recess which also opens axially in a direction in which the second end of the inner sleeve faces and the step recesses are registered with each other and together define a circumferential cavity between relatively telescoped portions of the inner and outer sleeves.

Abstract: A shaft sealing device has a body containing a spherical portion of a sealing element which also has a tubular portion extending outside the body. The shaft extends through both portions of the sealing element. A pair of annular wiper seals is located within the body and bear against the spherical portion of the sealing element. The wiper seals are separated by a cylindrical spacer. A thrust washer urges the wiper seals into contact with the spherical portion of the sealing element. A further sealing element surrounds the shaft outside the body and is partly engaged in a recess in the tubular portion of the sealing element. The sealing element has a curved outer surface and is urged into sealing contact with the recess in the tubular portion of the sealing element by means of a clamp nut screwed onto the outside of the tubular portion of the sealing element.

Abstract: This invention relates to a spool comprising a central portion (2) and two flanges (3) which can be attached to each other by means of fastening means (7), whereby both flanges (3) are provided with fastening means (7) which are located at the innerside (6) of these flanges (3) and which are attachable to the innerside (5) of the central portion (2).

Abstract: An apparatus adapted to rotatably support a propeller in a vibrating media, the propeller including a tubular hub having an annular end surface, the apparatus comprising a mounting bracket, a hub member rotatably mounted on the mounting bracket for rotation relative to the mounting bracket about an axis and including an annular surface perpendicular to and centered on the hub member axis, and a clamping device releasably and fixedly connecting the propeller hub to the hub member with the annular end surface of the propeller hub engaging the annular surface of the hub member for enabling rotation of the propeller with the hub member relative to the mounting bracket.

Abstract: The clamp apparatus transmits torque forces between a shaft and a hub. The clamp apparatus comprises conical rings, each having a conical surface together with a cylindrical inner or outer circumferential surface. The conical rings are drawn together by axial straining screws, thereby radially expending the clamp apparatus. Surface channels are provided on at least one of the conical surfaces into which a flowable lubricant may be forced under high pressure.

Abstract: A conical stressing device for connecting a hub to a shaft, the device including a double conical stressing assembly adapted to be mounted on the outer periphery of the hub, so that the hub may be radially compressed to attach it rigidly to the shaft by frictional forces, the double conical stressing assembly including: (1) a double conical ring which has two coaxial peripheral surfaces axially spaced apart and tapering in opposite directions, whereby the greatest wall thickness of the double conical ring is in the central region of its axial length, (2) two conical rings, each of which possesses a conical peripheral surface that acts in conjunction with a respective conical surface of the double conical ring, and (3) axial tensioning bolts which are distributed around the perimeter and are inserted in holes drilled axially in the conical rings, the axial tensioning bolts placing the conical rings under axial tension to force them to slide along the conical surfaces, wherein one of the conical rings tensions

Abstract: The present invention includes a tubular body member with a central bore which has two spiralling or threaded interior surfaces, each interior surface having a leading edge at nearly right angles to the longitudinal axis of the body and a sloped or tapered trailing edge along the bore from an end portion toward the central portion of the bore. The upper portion of the body has a left-hand spiralling or threaded surface. The lower portion of the body has a right-hand spiralling or threaded surface. Inserted into the central portion of the body member from each end is a slip segment or member. The outer surface of the upper slip segment has a left-hand spiralling or threaded surface, whereas the outer surface of the lower slip segment has a right-hand spiralling or threaded surface. Each such spiralling or threaded surface conforms to the spiralling or threaded surface of the corresponding interior surface of the stabilizer body.

Abstract: A clamping device for the fastening of a hub on a shaft, with a tapered flange ring having a cylindrical circumferential surface, with a conical circumferential surface radially opposing the surface and with a radial flange and with two taper parts capable of being tightened by means of axial clamping screws, with conical surfaces intended for cooperation with the tapered surface of the tapered flange ring. Control of the stress distribution along the shaft and security against overloads without slipping on the shaft are also obtained.