Abstract: A pivot/rotational device comprises a pivot pin having a head and a tubular, cylindrical shank of reduced diameter projecting from the head. A two-part bushing assembly comprises a ring and a sleeve. The ring encircles the shank. The sleeve is formed of anti-friction material and is disposed concentrically between and in surface-to-surface contact with the ring and the shank. The sleeve has a radially outwardly extending collar at one end disposed between and in surface-to-surface contact with the head and one end of the ring. The tubular shank has an open end opposite the head provided with a radially outwardly extending flange which overlies the other end of the ring. The ring is restrained from axial movement between the collar and the flange. The sleeve may also have a second collar between the flange and the ring.

Abstract: Device for removing a bearing assembly from a shaft including a tapered adapter for securing a bearing assembly to a shaft that includes a radial opening therethrough extending along the length thereof and further defines a groove extending about at least a portion of the circumference of the adapter and being located proximate the large end of the adapter. The device also includes a removal ring with a holding lip for mating with the groove extending about the circumference of the tapered adapter and is provided so as to apply a separating force between the bearing assembly and the removal ring for releasing a bearing assembly from a shaft.

Abstract: This invention relates to the bearing mount of the steering column tube (1) of a telescoping steering column in which the steering column tube (1) is supported in a housing (2) on the body with axial mobility. To produce a bearing mount without play, the steering column tube (1) is mounted to move axially in the housing (2) in a bearing bushing (3) slotted in the longitudinal direction and made of a nonmetallic material, with this bearing bushing (3) being supported on an outer contour (5) conical in cross section with frictional adhesion against an inner cone (6) of the housing (2) under axial spring load.

Abstract: A preload-clamp nut device is provided which securely mounts to a shaft having a plurality of shaft-mounted tools and provides a preload against the tools. A preferred embodiment of the device comprises a sleeve with a threaded bore and a slitted, tapered surface and a flange having a plurality of threaded holes, a clamp ring having a tapered bore and a plurality of openings that can be aligned with the plurality of threaded holes in the flange, and a plurality of bolts each having a set nut and a lock nut. When the bolts are inserted through the openings in the clamp ring into the threaded holes in the flange the set nuts and bolts can be tightened to clamp onto the shaft and preload the shaft-mounted tools. An alternative embodiment of the present invention provides a flange having a two-portion bore with a tapered portion and a constant diameter portion and a plurality of threaded holes, and a multipiece lockring having beveled edges that fit into the flange's tapered bore portion.

Abstract: A broadhead for an arrow having a locking mechanism which insures true alignment of the longitudinal axis of the broadhead with the longitudinal axis of the shaft of the arrow. A securing member has longitudinal slots extending from opposite ends thereof. Each slot extends more than half the length of the securing member. The securing member is positioned over and screwed to an inner member, which is one of the arrow shaft and broadhead, and fitted within an outer member, which is the other of the arrow shaft and broadhead. When the inner member is screwed to the securing member the latter expands radially pressing it firmly against the inside of the outer member to secure the broadhead to the shaft. Because the securing member has longitudinally overlapping slots extending from opposite ends the radial expansion is uniform over the length of the securing member.

Abstract: This key comprises a pair of elongated blocks each having a tapered recess; a tapered pin adapted to be inserted in a tubular tapered portion which is formed by bringing the pair of blocks together in such a manner that the tapered recesses confront, and mutually displaceable in the axial direction; and a clamping member adapted to be screwed into a threaded portion provided on one end of the tapered pin or the tubular tapered portion. The key obtained by assembling these parts can be fitted into a key groove provided between a driving member and a driven member. The clamping member is rotated to mutually displace the tapered pin with respect to the tubular tapered portion in the axial direction, thereby separating the blocks from each other, thus pressing the outer walls of the blocks against the inner wall of the key groove. As a result, the key is firmly fitted into the key groove, and the drive member and the driven member can be securely coupled together with a higher reliability.

Abstract: An axial retention system for an interstage seal located in a gas turbine engine of a type having a turbine section including a first stage disk and a second stage disk. The interstage seal includes a web portion having an aft arm extending from said web, the aft arm having a peripheral rim adjacent the second stage disk. The axial retention system comprising a split ring having two overlapping ends and a plurality of radially outwardly extending tabs for engaging a plurality of inwardly extending tabs located on the second stage disk adjacent the peripheral rim, in a bayonet connection. The retaining ring is located within a slot formed in the peripheral rim and the outwardly extending tabs are positioned in a passageway formed by the disk tabs.

Abstract: An apparatus is described for use in dampening impact loading transmitted between a cycle frame and a cycle seat. The cycle seat support apparatus has: an elongated sleeve attachable at one end to the cycle frame and having an opening extending into the sleeve at the opposite end; an elongated post attachable to the cycle seat at one end and the opposite end being slidably positioned in the opening of the sleeve; and structure for biasing the post to urge the post toward an at rest position when the post is moved relative to the sleeve. The opening in the sleeve has an inner surface and the post has an outer surface which are in sliding engagement during relative sliding movement of the post and the sleeve. The outer surface of the post and the inner surface of the sleeve being made of compatible plastics exhibiting sufficient lubricity to permit sliding movement of the post relative to the sleeve thereby minimizing wear of the inner surface of the sleeve and the outer surface of the post.

Abstract: A timing sprocket is secured to a camshaft by a locking coupling so that before the coupling is tightened the sprocket will free wheel on the shaft for adjustment purposes and yet be firmly supported against tipping under load, and when tightened the sprocket is locked to the camshaft. The sprocket has a bore fitting on the shaft and a counterbore accommodating a longitudinally split locking ring. A taper between the bore and the counterbore matches a taper on the end of the locking ring. A bolt axially threaded into the camshaft end moves the locking ring from the loose condition where the sprocket can rotate on the shaft to a tight condition where the tapers compress the ring against the shaft and clamp the sprocket for rotation with the camshaft.

Abstract: A spinal fixation system is provided for installing spinal instrumentation (18) posterior to a patient's spine to fuse selected vertebrae. The spinal fixation system (10) includes a plurality of connectors (12) and associated bushings (16). The connectors (12) comprise a first portion (20) canted at an angle of 7.5.degree. relative to a second portion (22). The connectors (12) secure the spinal instrumentation (18) to the pedicle screws (14). Each bushing (16) contains an angled borehole (28). The combination of the angles produced by the connectors (12) and the borehole (28) of each of the bushings (16) allows the installation of pedicle screws (14) at various angles relative to the patient's spine.

Abstract: A secondary securing member is provided (19,28,29,30) for securing a first component (11) to a second component (13) when primary securing member (17) is inadvertently removed. The first component (11) includes an outwardly extending spigot (12) slidably engaging the secondary securing member (19, 28,29,30). The second component (13) is assembled and secured by a primary securing member means (17). Thus if in use, the primary securing member (17) is inadvertently removed, the secondary securing member (19, 28, 29, 30) insures limited axial displacement but no separation of the second component (13) from the first component (11).

Abstract: In a master cylinder (20), a cap (30) for guiding a primary piston (50) is located within an end opening (24) of a body (22) of the master cylinder (20). The end cap (30) retains a sleeve (40) and other components within a bore (12) of the master cylinder (20), and is attached to the body (22) of the master cylinder (20) by way of a biasing retention mechanism (45; 145, 150; 260). The mechanism (45; 145, 150; 260) may bias the end cap (30) axially inwardly of the bore (12), bias a gripping ring member (145) radially outwardly into engagement with the body (22) of the master cylinder (20), and retain a first end (32) of the end cap (30) within the bore (12) in accordance with the extent to which the first end (32) is inserted axially into the bore (12).

Abstract: A connecting element for joining a structural part with an adjacent structural part has several sleeves (71, 72) provided with respectively one cutout (77) and one extension (74) wherein in each case the extension (74) of one sleeve (71, 72) engages into the cutout (77) of the other sleeve (71, 72). The sleeves (71, 72) are in contact with fitting clearance with an inner wall of a pipe (14) to be attached to a connector (13). A clamping screw (7) is threaded into a thread (9) of the connector (13) and thereby clamps the sleeves (71, 72) mutually in place, the extensions (74, 87) entering more deeply into the cutouts (77, 92) and thereby expanding the circumference of the sleeves (71, 72) until a fixed clamping of the sleeves (71, 72) against the inner wall is achieved. The sleeves (71, 72) are held in flush mutual contact by a serration. The unwound of the sleeves (71, 72) are punched out from steel strip and subsequently formed into cylindrical sleeves (71, 72).

Abstract: A shock absorbing bicycle seat mounting post assembly is mounted in a hollow tubular socket member, by means of a binder clamp, in the frame of a bicycle. The shock absorber includes a compression spring which will effectively absorb shocks which are carried through the frame when the wheels encounter obstacles and holes when traveling along the ground. The bicycle seat mounting post assembly includes a number of shims which will adapt the post assembly to varying sizes of bicycle frames. A bellows is provided to keep dirt and dust out of the spring area and protect skin and fingers from being pinched. Stabilization is enhanced by the provision of a piston at the lower end of the movable shaft upon which the seat is attached. A variable volume reducing device may be positioned below the seat mounting post to adjust the volume of air trapped below the piston.

Abstract: Speed reducer, such as a screw conveyor drive, adapted to receive a shaft within a tapered sleeve. The shaft includes a tapered portion adapted for engagement with the corresponding tapered portion of the sleeve on one side of the housing when the shaft is inserted into the bore. On the other side of the housing, a split bushing is provided for receipt within the sleeve, the split bushing including a tapered surface for mating engagement with the tapered surface on the sleeve. A retainer plate is provided that is adapted to be placed on the end of the shaft extending through the bore. The retainer plate has a center hole for receipt of a capscrew through the retainer plate and into the shaft to securely maintain the shaft in place. The retainer plate further has a plurality of holes dimensioned so that the head and shank of screws may extend therethrough and a plurality of holes dimensioned so that only the shank of the screws can extend therethrough.

Abstract: A coupling fixture provided with an outer ring and an inner ring each ring having a radially extending cut in one circumferential direction, the inner periphery of the outer ring and the outer ring of the inner periphery being tapered, a wedge-like-shaped ring nut interposed between the inner periphery and the outer periphery, and screw bolts screwably engageable with the ring nut to expand the outer ring in diameter and contract the inner ring in diameter, the ring nut being provided with a cut for making the ring nut radially displaceable.

Abstract: Apparatus for mechanical coupling such as an actuator to a valve includes an elongated drive member having an axial extremity having a drive surface and an elongated driven member having an axial extremity having a drive surface. One of the drive surfaces is an internal surface which has a polygon shaped cross section and one of the drive surfaces is an external drive surface which has a polygon shaped cross section. In some embodiments first and second sleeves including a plurality of wedge surfaces having generally planar faces are inserted between the drive and driven surfaces. In other forms of the invention the internal drive surface has four wedge shaped faces and a single sleeve having wedge shaped faces is inserted between the drive and driven member. The drive and driven members are disposed with the drive surfaces disposed in nested axially overlapping relationship with the wedge shaped surfaces disposed radially intermediate the respective drive surfaces.

Abstract: An apparatus for fastening a wheel, having a boss hole therein, to a shaft. The fastening apparatus includes an axially slit outer ring having a cylindrical outer peripheral surface fitted into the boss hole, a tapered inner peripheral surface, a support flange formed at one end of the ring adjacent the small diameter end of the tapered surface for direct engagement with the shaft, a cylindrical inner peripheral surface formed at the large diameter end of the tapered surface, and an enlarged annular end flange formed at the other end of the ring.

Abstract: A piston rod, having a threaded end, is threadedly received in a split collar which is (a) internally threaded and (b) externally tapered. The collar is received in a tapered bore formed in a cross-head. The crosshead has a plurality of threaded holes formed therein to receive studs which penetrate a pressure plate. Nuts secured to ends of the studs draw the plate against the collar to cause its threads to fully engage the threads of the rod end, and secure the collar in place. The rod, of course, can be turned in the collar, threadedly to adjust its axial positioning in the collar.

Abstract: A blind anchor capable of anchoring a smooth rod in a hole drilled in an existing structure. The blind anchor consists of a cylindrical expansion sleeve having a cylindrically tapered aperture and a jaw cluster that fits within the expansion sleeve. The expansion sleeve may be slotted to facilitate expansion and may include external ribs to firmly grip the interior of the hole. The jaw cluster is fashioned from a plurality of jaw members that are expandably retained together in a notched retaining ring. The connections between the blind anchor, the smooth rod, and the hole are beneficially reinforced when the rod experiences a pulling force away from the hole.

Abstract: A fastener for securing a wheel to a shaft comprises a first ring having a cylindrical central opening. The first ring includes a radially extending portion having for engaging one side of the wheel. A boss having a tapered outer surface extends axially from the radially extending portion, and the central opening extends through the radially extending portion and through the boss. The fastener also includes a second ring for engaging the opposite side of the wheel, and a third ring having an inner surface engageable with the tapered outer surface of the boss of the first ring. Bolts connectable to the second and third rings urge the second and third rings axially toward each other whereby the second ring is urged against said opposite side of the wheel so that the wheel is axially pressed between the first and second rings, and the inner cylindrical surface of the boss is radially pressed against the shaft.

Abstract: The locking device comprises a support plate (3) perforated by at least one flared opening (4), into which there penetrates a wedge (5) of complementary shape which is crossed axially by the reinforcement (2) with which it comes to engage by an internal toothing (12). The wedge (5) is intended to be driven by force into the opening (4) by an initial pressure and then by the tension of the reinforcement (2), and comprises on at least a part of its external surface an anti-return toothing (13) which is intended to come to engage with the wall (7) of the opening (4) of the support plate (3) when this wedge (5) has been driven into said opening (4). This toothing (13) has, in the direction of the length of the wedge (5), toothed zones (13a) alternated with recessed untoothed zones (13b). Used in particular for locking an elongated reinforcement under tension, such as a tension rod, strand, cable or similar, in particular in a work made of prestressed concrete.

Abstract: An ultra high pressure fluid end for a reciprocating pump. The pump fluid end has a built-in accumulator characterized by an annular volume chamber defined in a body of the pump end. There may be a plurality of such chambers which are interconnected by a discharge manifold which is also in communication with an outlet of the body. The pump fluid end also uses frictional clamping to connect the pump plunger to the drive end of the pump. The frictional clamping includes a collet assembly comprising a split collet positioned around an end of the plunger, a collet hub disposed around the collet, and an adapter adjacent to the collet hub. Fasteners are used for clamping the collet hub to the adapter and thereby causing the collet to clampingly or grippingly engage the plunger. Coaxial inlet and outlet valves are provided in the body. A pressure retainer is disposed in the body around the plunger, and packing is used to seal between the plunger and the pressure retainer.

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: In an apparatus for fixing a roll ring 4 on a roll shaft 2 mounted in two parallel roll stands 1a, 1b on both sides of the roll ring, by means of a tensioning means 18 and an axially tensionable conical sleeve 8 a radial tension is generated in the roll ring 4. In addition, the conical sleeve 8 carries the roll shaft bearing 3a.To enable the axial and radial tensioning of the roll ring 4 to be adjusted simply and accurately in spite of the additional roll shaft bearing 3a, the tensioning means 18 acts on the one hand on the conical sleeve 8 via a first thrust transmitting means passing through the roll stand 1a and on the other hand on the roll ring 4 clamped between two thrust rings 22, 23 via a second thrust transmitting means passing through the roll stand, one of the two thrust transmitting means also receiving the roll shaft bearing 3a.

Abstract: An apparatus and method for connecting a rotatable hub to a drive shaft is disclosed in which the rotatable hub has an axial opening and a radial through opening between an outer surface of the hub and the axial opening of the hub. A rotatable shaft having an axial slot is positioned in the axial opening of the hub with the slot facing the radial through opening of the hub. One or more pins are inserted through the through opening in the hub into the slot in the shaft to insure rotation of the shaft and the hub together. The radial through opening may be covered at the outer surface of the hub to hold the pin in the through opening and in the slot.

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: The invention relates to an apparatus for coupling a shaft or a hub by means of a radially resilient bush, which can be radially clamped to the shaft or hub by axially tightenable clamping elements by exposing the clamping elements to a radially operative spring assembly; the release of the coupling is effected by means of a hydraulically- or pneumatically-actuated cylinder and piston arrangement. The nucleus of the invention is that the spring assembly is accommodated in the cylinder chamber acted upon by the pressure fluid.

Abstract: A microphone stand coupler that facilitates microphone stand assembly and disassembly by enabling users to quickly and easily snap a microphone pole into a microphone stand base. In the preferred embodiment of the present invention, the microphone stand coupler is manufactured with hollow piping that is tapered and closed at one end. The interior of the piping is preferably threaded to accommodate the microphone pole. At the closed and tapered end of the coupler, a threaded hole is provided to accommodate a base attachment merchanism. The coupler is inserted through an opening in the microphone stand base, and the coupler is secured to the base by a over-center cam lever that is part of the base attachment mechanism. A microphone pole may then be threaded into the open end of the microphone stand coupler. The coupler and attached microphone pole may be detached from the base by disengaging the base attachment lever.

Abstract: A device which is externally fitted to a rod-like object has an inner tubular member and an external, rigid tubular member. Each tubular member has a longitudinally extending opening through which the rod-like object can be inserted. The internal tubular member has a conically narrowing outer peripheral surface and an inner surface whose shape approximately corresponds to the peripheral surface of the rod-like object. The external tubular member has a conically shaped inner surface corresponding to the outer surface of the internal tubular member. By axially displacing the inner and outer tubular members, the device will be firmly clamped onto the rod-like object. The device can be used to clamp cloth or fabric to a tubular stand or frame structure. Also suspension devices and connecting devices such as hooks and legs can be attached on the device.

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: 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: A coupling device for a torque transmitting, longitudinally displaceable coupling of two shaft parts formed by toothed profiles is arranged to ensure backlash free meshing of the toothed profiles in the direction of rotation. An intermediate bush is provided between both shaft parts, which intermediate bush meshes with their toothed profiles and is slit like a collet at both bush end areas. A clamping and expanding members are respectively allocated on the shaft side to the slit bush end areas, which clamping and expanding members come into mesh with the shaft parts during coupling of the latter and, under the action of an axially directed contact force, avoid, by compression and expansion respectively of the slit bush end areas, flank clearance between the toothed profiles coming into mesh 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 tolerance ring is provided with radial projections to achieve unidirectional or bidirectional axial retention, or angular retention relative to at least one abutting cylindrical surface. Spaced tabs, dimples or a continuous flange formed at one or both axial ends of the ring provide the axial retention function by engaging with one or two shoulders on the abutting cylindrical surfaces, and a radially projecting tab at a lateral end of the split ring provide the angular retention function by engaging in a groove in the abutting cylindrical surface. The axial and angular retention projections can project radially inwardly or outwardly depending on the particular application, and the axial and angular retention projections can be used individually or in combination as desired.

Abstract: "A tilt telescope steering column assembly comprises a housing supported for tilting movement, a tubular member supported for axial movement in the housing, and a steering shaft supported for rotation in the tubular member. Axially spaced bearings engage the housing and the tubular memeber to take up clearance therebetween".

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: A rivet for holding together first and second members utilizing a shaft having first and second end portions. The first and second end portions of the shaft at least partially occupy the openings through the first and second members respectively. A cap having an internal bore grips the first end of the shaft which is extended through the first member. The cap has an enlargement including an exterior surface for frictionally engaging the opening through the first member. The shaft also includes an enlargement on the second end portion which is capable of frictionally engaging the second member.

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: An attachment device is provided by joining a first structural member to the threaded stud of a second structural member by an attaching means which includes a flanged main body that has a tapered portion. A nut tightens the attachment device into an aperture of the first structural member and a removal tool is used to remove the attachment device when desired.

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 structure 10 is resiliently clamped and supported on stud 12. A cylindrical core 38 of the spring sleeve is compressed by nut 34 against a stop 32. The supported structure is biased against the stop 32 by a plurality of spring fingers 40 located at the lower end of the core.

Abstract: Quick action fasteners, nuts, and end-to-end couplers, which eliminate the need for time-consuming and labor-intensive threading of nuts, couplers, and the like to helically threaded reinforcing rod and sections thereof and to other types of textured surface reinforcing rod, particularly in environments in which the fastener will be subjected to high loads and/or torques. Fasteners according to the invention include a housing, a plurality of nut segments, and an end cap for retaining the nut segments in a specially shaped bore defined in the housing. The bore includes a tapered section and an expansion section; the nut segments are formed, along interior segment surfaces, to be closely engageable to a corresponding section of the reinforcing rod. The nut segments are also shaped, along their exterior surfaces, to be congruent with tapered section of the bore.

Abstract: A clamp for a cylindrical workpiece, such as a shaft, pipe, cable or the like. The clamp includes a threaded sleeve for circumferentially engaging the workpiece and at least one correspondingly threaded nut in threaded engagement on the sleeve for engaging either another nut on the sleeve or a stationary workpiece integrally formed with the sleeve. The sleeve is provided with a shallow thread configuration having a flank angle which produces a radial force component that exceeds the axial force component when the nut is tightened, thereby imparting a uniform radial clamping force along the entire extent of the threaded engagement.

Abstract: To prepare a split frustoconic jaw intended for the anchoring of a cable, a part is first taken bounded externally by a frustoconic surface and hollowed by a cylindrical axial channel whose inner surface is advantageously striated. This part is sawed into by substantially axial and radial slashes leaving bridges to subsist of small thickness at the bottom of these slashes throughout the central channel. An assembly ring is mounted in an outer annular groove and the whole is subjected to cementation treatment so as to surface harden the jaw while making the bridges fragile.

Abstract: Improvements to tolerance rings are provided permitting them to be utilized in holding cylindrical members within sheet panels and providing positive axial retention of the ring in the sheet panel; permitting them to be used in centered and half-centered mounting arrangements without requiring the formation of shoulders on the engaged members, but rather through the use of an annular split ring shim; and permitting them to be used to restore the effective diameter of worn parts by providing the ring with a bowed shape.

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: A method of retaining a splined male member and a splined female member against relative axial motion therebetween when the splines of the members are in engagement with one another and a unitary axial retaining member for use in the practice of the method. The method includes the steps of mounting a hollow, thermoplastic axial retaining member to the interior surface of the female member and positively interconnecting the other end of the axial retaining member with the male member. The axial retaining member has an inwardly oriented flange for interconnecting one end of the retaining member to the male member and an outwardly oriented radial flange for interconnecting the opposite end of the retaining member to the female member. A plurality of longitudinal slots are optionally formed in one end of the retaining member to separate it into a plurality of flexible fingers to facilitate interconnection of that end of the retaining member with its associated male or female member.

Abstract: A method of using a tolerance ring in conjunction with a relatively soft material while preventing deformation of the soft material is provided through the use of a split cylinder shim between the tolerance ring and the soft material. This arrangement can be used whether the soft material is surrounded by the tolerance ring, surrounds the tolerance ring or both.