Abstract: A tractor-loader-backhoe is disclosed wherein the loader mechanism is mounted on the frame of the prime mover by a tapered pivot pin or sleeve having a fastener extending entirely through the axis of the pivot pin or sleeve to effect a clamping load operable to seat the tapered pivot pin or sleeve in the conical hub affixed to the frame of the prime mover to assure a firm fastening of the loader mechanism on the prime mover. The backhoe mechanism is provided with a transport lock remotely actuatable from the operator's cab mounted on the prime mover and incorporating a locking pin having a concentric spring mounted thereon to urge the pin out of engagement with the frame whenever the transport lock is disengaged to permit operation of the backhoe mechanism. The boom and dipper members of the backhoe mechanism are constructed from a pair of opposing C-shaped channels having inwardly directed legs centrally located within the boom and dipper members.

Abstract: A pivot joint for a rotary lever has a spacer extending axially from a foundation such as an engine motor component. The spacer includes a cylindrical ferrule. A rotary lever and a belleville spring, both having a bore of a size to fit over the outside of the ferrule in a sliding fit, are slid over the ferrule. The belleville spring has an uncompressed cone height to thickness ratio of 1.4 to 1.8 and is compressed by at least 50% of the uncompressed cone height. The joint also includes a means for fastening the spacer to the foundation and a means for securing the lever and belleville spring onto the ferrule. The securing means bears against the free end of the ferrule to compress the spring to provide a substantially uniform operating torque from one assembly to another.

Abstract: A sealed and lubricated pivot pin assembly and method for joining linkage components in earth-moving machinery. The pivot pin assembly includes a pivot pin subassembly, a pair of spacer rings, a pair of track chain type annular seals, an end cap subassembly, and a releasable fastener. The spacer rings simplify joint assembly by setting up and controlling the proper squeeze on the annular seals, preventing crushing of the annular seals during torquing of the releasable fastener, and controlling the set-up length of the assembled joint so that no shimming is required. Each of the pivot pin and end cap subassemblies include an end sleeve which extends beyond the joint clevis or brackets a sufficient distance to allow the pivot pin assembly to float axially and, thereby, compensate for minor deflections in the joint members. The pivot pin assembly is symmetrical in that the pivot pin and end cap subassemblies have common dimensions which permit the pivot pin assembly to be installed from either side of a joint.

Abstract: A pivoting link subassembly of a linkage support system includes a first link having a circular bore hole therein, a second link having a non-circular bore hole therein, a washer positioned between the links so as to be aligned with an axis extending through the aligned bore holes, and a rivet which extends through the bore holes to maintain the links together and provide a pivot, the rivet including a shank portion which fills the non-circular bore hole in the second link to assure rotational connection thereto.

Abstract: The mailbox support-mounting disclosed has a pivoting arm. If the mounting receives a blow, e.g. from a snow-plow blade or from a vandal, the arm swings aside. After swinging aside, the arm resets itself to a central equilibrium position. The restoring force to reset the arm is provided by gravity, in that the pivot axis is set at an angle, and slopes forwards towards the road. The pivot bearing is sturdy and well-located, yet the bearing is inexpensive and not prone to seizure.

Abstract: A device for changing the axle orientation in a balance beam suspension operates by introducing a variable axial eccentricity between an axle carrier and the beam hanger to vary the amount of yaw on the axle to enable the wheels on the axle to be oriented in alignment with the vehicle axis.

Abstract: An articulation joint is disclosed for use for example on back hoe boom assemblies wherein an articulated tool arm (2) is hinged-jointed to a boom fork (1) on the boom assembly in such a manner that shocks, knocks and vibrations to which said tool arm (2) is subjected cannot to a damaging extent propagate from said tool arm (2) to said boom fork (1). To this end the bearings of the articulation joint, comprising roller bearing (5) with ball bearing (7) at either end, are via their outer bearing race (6) and possibly a circumscribed metal ring (9) held in a circumscribed elastic shock ring (8) which is suitably formed as to permit installation within the eye of said tool arm (2).

Abstract: A window operator and assembly method therefor wherein a stacked pull arm and gear are rotatably mounted on a bushing carried by a mounting base and the gear and pull arm are assembled to the mounting base with a controlled clearance independent of the tolerance of these components by use of a hardened metal bushing. The hardened metal bushing is forced into the deformable metal of the mounting base whatever distance is necessary to locate an exposed end of the bushing a fixed distance beyond the uppermost of said gear and pull arm and provide a surface against which a washer may be mounted and which overlies the pull arm and gear to hold the components in assembled relation with the controlled clearance.

Abstract: Pistons are described comprising a crown portion and a skirt portion, the crown portion having depending from the underside thereof a boss, the boss having secured thereto at least two bearing members in fixed relationship to the piston body and which bearing members co-operate with an associated connecting rod. The bearing members may be located in rebates in the boss such that piston firing loads are born substantially in compression. The bearing members are in one embodiment secured to the boss by a bolt and nut. The bearing members may comprise ferrous, copper-based or aluminium based alloys depending upon the application environment.

Abstract: A knuckle joint in which a first piece with an eye enters a jaw between two corresponding projections of a second piece having a first and a second eye respectively formed therein, and is retained by a pin member, wherein the pin member comprises a pin having a first end with a button fixed thereat and a second end. The pin passes through the eye of the first piece, which then retractably protrudes the button out from the first eye of the second piece and extends the second end to a position near the second eye of the second piece. A stopper has a protrusion which is passed through the second eye of the second piece, extending into the eye of the first piece, and joined with the second end of the pin. A slide block is passed through by the pin and inserted within the eye of the first piece, retractably protruding into the first eye of the second piece.

Abstract: An improved reclining chair particularly for dental and medical patients utilizes structure and mechanism of a prior conversion unit for mounting such a chair on a pedestal base. Novel features that improve stability of the chair during use are provided. The conversion unit includes an elongate chassis frame having respective chair back and chair seat frame sections that are pivotally interconnected end-to-end and provided with a mounting plate adpated to fasten the unit to a pedestal base and on which the chassis frame is cradled for back or forth rocking movement under the control of the dentist, doctor, or other operator.

Abstract: Knee joint prosthesis of the type including a first and second element (1, 2) capable of being secured rigidly to the bones connected by the joint. The first element (1) carries a clevis (3) through which the axis XX' of a bending pivot (4) passes. The second element (2) carries an eye (5) introduced between the legs of the clevis (3). The pivot (4) includes a pin (41) carrying on the outside a bearing ring (43) fitted in the eye (5) of the joint and lateral stops (44, 44') with a diameter corresponding to that of the ring (43), respectively fitted in the clevis (3).

Abstract: A kingpin assembly for an axle of a motor vehicle comprising a front axle beam and a steering knuckle pivotally mounted thereon, the kingpin assembly comprising a kingpin fixedly secured in an aperture in the front axle beam and passing through an aperture in the steering knuckle; a bearing positioned around the kingpin within the aperture in the steering knuckle to allow relative rotation between the steering knuckle and the kingpin, and a predetermined number of annular spacers positioned around the kingpin and between the front axle beam and the bearing for providing a predetermined spacer height and for providing a required pre-load for the assembly kingpin assembly, the annular spacers having a predetermined thickness (preferably in excess of 1.0 mm) and being selected from a range of annular spacers comprising annular spacers having one of a selected number of small variations in thickness, and which when assembled can provide a variation in excess of the possible range of spacer height.

Abstract: A support structure of a rotatable lever comprises a cylindrical shaft portion integrally formed with a support body; a base member connected to the support body and having a shaft hole; an auxiliary shaft member having a shaft main body supported by the cylindrical shaft portion and a projecting shaft inserted into the shaft hole of the base member and supported by the base member; a device for inserting the shaft main body into the cylindrical shaft portion; and an elastic device disposed between the base member and the shaft main body of the auxiliary shaft member and biasing, towards the cylindrical shaft portion, the rotatable lever which is disposed between the cylindrical shaft portion and the elastic device.

Abstract: A bushing assembly for use in a hinge for an automotive vehicle seat assembly comprises a pair of identical interlocking sleeves, each having a pair of opposing tangs extending in an axial direction from an annular portion. Each of the tang portions has a shoulder which is radially outwardly directed and is deflectable. The shoulders on the tang portions engage corresponding recessed ledges on the interior wall of the annular portion of the opposite sleeve so as to snap fit together to form an integral bushing assembly through which a hinge pin is passed. The bushing assembly is positioned around the hinge pin and between the hinge pin and the frame members of the vehicle seat assembly to allow rotation of the upright back of the seat. The sleeves may also be stacked together such that each of the tang portions snap into engagement with the annular portions of the adjacent sleeve to form a flexible bushing assembly of variable length.

Abstract: A joint device comprising a housing having a bearing for a headed stud, a concave element engaged on the stud head in close fitted position with the internal surface of the housing, and a spun over lip of the housing deforming the concave element on the stud head to exert a desired preload on that stud head while forming its own stop groove in the housing internal surface to prevent lock-up of the headed stud in the housing.

Abstract: A window operator and assembly method therefor wherein a stacked pull arm and gear are rotatably mounted on a bushing carried by a mounting base and the gear and pull arm are assembled to the mounting base with a controlled clearance independent of the tolerance of these components by use of a hardened metal bushing. The hardened metal bushing is forced into the deformable metal of the mounting base whatever distance is necessary to locate an exposed end of the bushing a fixed distance beyond the uppermost of said gear and pull arm and provide a surface against which a washer may be mounted and which overlies the pull arm and gear to hold the components in assembled relation with the controlled clearance.

Abstract: A window operator and assembly method therefor wherein a stacked pull arm and gear are rotatably mounted on a bushing carried by a mounting base and the gear and pull arm are assembled to the mounting base with a controlled clearance independent of the tolerance of these components by use of a hardened metal bushing. The hardened metal bushing is forced into the deformable metal of the mounting base whatever distance is necessary to locate an exposed end of the bushing a fixed distance beyond the uppermost of said gear and pull arm and provide a surface against which a washer may be mounted and which overlies the pull arm and gear to hold the components in assembled relation with the controlled clearance.

Abstract: A pivot joint mechanism for connecting together two relatively movable members which includes a stepped opening through one of such members in the form of an inwardly extending flange at one end of such opening, an intermediate section, and a threaded section at the opposite end of said opening. A retainer ring threaded into said threads captures a bearing mechanism between said retainer ring and said flange.

Abstract: A method and an apparatus for storing/taking-out a rod-like stored article enables the article such as a printing-plate cylinder, which must be kept out of contact with other thing in its barrel surface in storing, to keep out of contact with other thing in storing/taking-out operation thereof, which apparatus use a foldable ladder-like, or a like chain-like holder unit for holding a plurality of the rod-like articles in parallel to each other at certain intervals so that the thus held articles can be transferred between its storing area and its taking-out area for use, while its storing space is remarkably reduced without fear of contact with each other.

Abstract: A pivot assembly provides limited pivotal motion between a relatively stationary member and a relatively moveable member which is supported on the stationary member. The stationary member is secured to a vehicle frame and the moveable member forms a portion of an endless track supporting frame. The pivot assembly includes a plurality of elastomeric bearings between the stationary and moveable members and a loading member to compress and preload the bearings. Conventional pivot assemblies utilize metal sleeve, roller or ball bearings to provide relative pivotal motion between stationary and cooperative moveable members. Such metal bearings require constant lubrication, and seals to contain the lubrication, and produce objectionable noise and vibration. The subject pivot assembly requires no lubrication or seals and generates low levels of noise and vibration by isolating the stationary and moveable members with the elastomeric bearings.

Abstract: The present invention relates to an apparatus for mounting auxiliary components such as a seat, a camera platform or the like at or near the bearings which support the dolly or carriage wheels or articulated legs. The present includes at least one cap member and a receiving tube. Each cap member is arranged so as to transfer any force placed on the receiving tube directly onto the vehicle frame rather than the bearings associated with the leg king pin system. The cap members also serve to exclude contaminants from the bearing means of the leg king pin system. Rotation of the leg king pin driveshaft is not impeded by the receiving tube. One embodiment of the present invention also includes a groove in one of the cap members to permit the locking of the leg locking pin in the disengaged position.

Abstract: A lever arrangement comprises a bearing pin and a supply space arranged next to the bearing opening of at least one of the levers and which contains a high-viscosity lubricant. In the operation of the lever arrangement with alternating tilting direction, the lubricant arrives, due to its inertia, in the respectively unstressed part of the bearing gap between the levers. The arrangement is suited particularly for highly stressed parts in the mechanism of circuit breakers which must be designed for space saving due to the small space available. The service life of such lever arrangements is increased substantially by arranging the lubricant in the supply space. The supply space can be part of a sleeve braced on the bearing pin.

Abstract: A pin retention mechanism for a pivot joint which connects together two structural members of a machine for pivotal movement relative to each other. The pivot pin has a dynamic connection with one of the structural members and there is an annular spacer on the pivot pin adjacent the dynamic connection. The other structural member has a tapered opening through it with the taper either on the structural member itself or on a bushing within an opening in the other structural member. A collet in the tapered opening has an external surface mating with the tapered internal surface. A cylindrical sleeve is located between the collet and the pivot pin and in contact with the spacer.

Abstract: A seat swivel apparatus includes a first mounting plate rotatively mounted to a second mounting plate. Each of the first and second mounting plates has a circular recess formed therein to define a pair of bearing races which hold bearing means such as a plurality ball bearings. The first and second mounting plates are held together utilizing fastening means that include a Belleville spring to provide a continuous and substantially constant biasing force on the plates to maintain them in proper rolling contact with the ball bearings. Each of the races include two arcuate sidewall portions and a connecting portion between the sidewall portions, the connecting portions being substantially flat to help prevent the bearings from tightening within the races.

Abstract: A joint for connecting together two frame members of a machine for relative movement wherein one of the frame members has flexible portions which during assembly of the joint are flexed to enable the joint to be assembled without shims and without exceeding predetermined maximum stresses on the parts of the joint.

Abstract: A bush assembly for a vehicle suspension system has an inner sleeve which locates within aligned apertures in spaced support members. The inner sleeve is located by opposed hollow plug members, each having a flange which engages the outer face of respective support members and a boss which extends through the respective support members into the interior of the inner sleeve. The inner sleeve may be continuous or comprised of two tubular portions. The assembly is locked together by a bolt extending through the hollow plugs and inner sleeve(s).

Abstract: A pivot bearing between first and second components (10,11) each of which is formed from a metal material. The pivot bearing comprises a hollow annular boss (14) which is formed as an integral part of the first component (10) by being drawn from the base material from which the first component is formed. An opening (12) is provided in the second component (11) and the annular boss (14) is pivotally located within the opening. The free end portion (18) of the boss (14) is pressed over such that the cross-sectional area of the free end is greater than the opening (12) thereby pivotally retaining the second component (11) on the annular boss (14). A wear-resistant plastics bushing comprising a sleeve (15) and a flange (16) can be positioned within the bearing and placed under pressure by the coupling of the components to create a required level of friction within the bearing.

Abstract: Replaceable support assemblies for cooking trays for rotating oven reels that include a replaceable bearing structure that permit free movement between the cooking trays and the rotating oven reel while supporting thereon articles to be cooked during the rotation of the reel.

Abstract: An adjustable mounting assembly has a slot through the control arm of a steerable wheel suspension system in which a threaded stud of a ball joint extends. Nuts threadably engage the stud and clamp the control arm in place to fix the spindle in an adjusted position. The nuts are longitudinally adjusted along the stud to preload the ball joint to a desired amount.

Abstract: A pivot joint mechanism for connecting together two relatively movable members which includes a pair of cone-type locks at the respective ends of a pivot pin which can be readily assembled and tightened to hold all of the internal parts locked in place by means of a single nut on a bolt extending through the pin, and which can be readily disassembled by inserting jack screws in the ends of the mechanism and backing the female locking members out again.

Abstract: A pivot pin assembly is disclosed which eliminates the need for a high pre-load torque to be applied in order to fix a friction-reducing element relative to the pivot pin. The pivot pin assembly includes a pivot pin having a shoulder formed on a central cylindrical portion thereof which is received in the bores of a forked member and in the bore of an intermediate member located therebetween. The pivot pin, has a conical surface at one end and is held fast in the bore of the other forked member by a collet which also has a tapered surface. The tapered surfaces of both the pin and the collet are mateable with the surfaces of the bores in the forked members as the collet is physically bolted to the pivot pin.

Abstract: An article of furniture includes frame members, a seat member supported on the frame member, a concealed joint for pivotally coupling two frame members to each other, and an attachment for coupling the seat to the frame members. The two frame members include truncated bores for concealing the joint. The pivotal joint includes a pair of connecting members which are received in the truncated bores in fixed relationship to the frame members. Each connecting member has an opening for receiving a bearing member. A retainer is inserted through the bearing member and engages both connecting members to prevent lateral separation of the frame members. Each connecting member is independently rotatable on the bearing member.

Abstract: This invention pertains to an improvement in box joint tools and particularly for reducing play resulting from wear of the members forming the box joint. The box joint is formed in the usual manner. This improved joint is used when or where wear develops or may be utilized with new tools at the time of assembly. A first portion outer member of the box joint is machined to provide a counterbore and an enlarged bore in this member portion. A counterbore is also formed in the second outer member portion and extends to about one thirty second of an inch from a central jaw tongue portion. This counterbore provides a flexure portion with a smaller bore axially coincidental with the axis of the central portion. A pivot pin bushing has a threaded bore and is sized to be a press fit in the formed counterbore and enlarged bore of the first outer member. This bushing is mounted in the first outer member and the shank portion extends into the tongue portion of the central jaw.

Abstract: A damping spacer for overhead conductors comprises at least two rigid spacing arms, with each arm having means for clamping the same to a respective conductor. Each arm is provided with an integral hub structure for holding a composite elastomer damping element, the hub structures and damping element being mechanically held together by a pin means extending through the hub structures and damping element. The damping element is comprised of an inner structure made of a relatively soft elastomer material and an outer structure made of a relatively hard elastomer material. The soft elastomer is effective to dampen low amplitude, high frequency aeolian vibration, while the relatively hard elastomer is effective to dampen high energy, wake-induced oscillations in a conductor bundle. The hard material also serves as a stop mechanism to limit relative motion of the arms and hub structures. This provides protection for the soft elastomer and prevents clashing of the metal parts of the spacer.

Abstract: In a mining machine or the like which incorporates cutting bits having conically shaped heads and located in sockets of bit holders having respective wear sleeves located on the shanks of the bits with the bit free to rotate with the sleeve interposed between the socket preventing wear mount; a retainer is provided maintained by the mount and engageable with a receptacle on the sleeve to insure against undesired ejection of the bit.

Abstract: A method of fabricating a hand calculator utilizing die press punching to form its three parts. A circular stationary base plate is punched with a central, circular, raised, beveled portion which is then rigidly fixed to a circular stationary top plate by means of flared eyelets. Between these two parts a circular movable scale plate is movably inserted. The scale is etched with scales, and punched with a plurality of holes about its periphery to allow for pencil point movement.

Abstract: A friction pivot joint where a headed fastening couples two components by passing through aligned openings in the components and having structure for preventing axial movement of the tail of the fastening. The joint is characterized by the shank of the fastening extending through a bushing of wear resistant plastics material located in the opening in one component. The bushing has integrally formed therewith a peripheral flange and the flange is sandwiched between the two components thereby preventing contact between the components. Friction in the joint is created from the plastics bushing and integral peripheral flange being placed under pressure by the fastening. The bushing has a length which is greater than the length of the opening in which it is located with the result that during assembly of the joint pressure created by the fastening causes the free end of the bushing to flow under the head of the fastening to be retained thereunder by retaining structure.

Abstract: A bushing formed of an outer body and an inner sleeve member adapted to rotate within the outer body, the outer body having a bore adapted to rotatably receive the inner sleeve member such bore being eccentric, i.e. offset and/or skewed, relative to the axis around which the outer surface of the outer body is generated, and the inner end member having a usually tapered bore similarly eccentric to the axis of the outer surface of the inner sleeve member such that the inner member may be rotated relative to the outer body with the eccentricity of the bore of the outer body and the bore of the inner member either being additive or cancelling such that the effective eccentricity of the inner bore may be adjusted to the outer surface of the outer body to provide, for instance, caster and camber compensating bushings for vehicles, and other similar eccentric bushing uses.

Abstract: A pivot pin assembly for a bucket loader wherein a pivot pin having an enlarged tapered head passes through bushings in the loader boom arm to a distal end whereat an externally tapered thrust collar is slideably mounted thereon. An adjustment plug is threaded in the thrust collar and regulates the spacing between the collar and the pin end thereby setting the side clearance for the bushings. A pair of split wedge collars respectively lock the tapered pin head and the thrust collar in the bushing bracket apertures, the split collars being wedgingly locked by end plates bolted to the respective ends of the pin. Lip seals are provided between the boom arm and the pin head and the thrust collar and the boom arm and the pin is provided with an internal lubricant reservoir communicating with the boom arm bushings which may be easily refilled as necessary.

Abstract: An adjustable basketball goal is mounted on a parallelogram supporting structure that permits the goal to be adjusted to different heights from 6 to 10 feet. The goal is raised and lowered by threaded members between portions of the supporting structure that provide sufficient mechanical advantage so that the adjustment can be easily made. The supporting structure also is designed to permit the goal to be secured directly to the supporting structure rather than just the backboard thereby minimizing the breaking off of the goals by a player hanging onto the rim. An adjustable length tension member extends between front and rear vertical supports of the supporting structure to take up slack in the structure as its pivotal connections wear with age.

Abstract: A pivot joint between a crop cutting sickle (13) and an offset drive arm (12) includes a pivot pin (37) which is connected to the sickle by antifriction bearings (23) and to the sickle drive arm (12) by a tapered wedging sleeve (43). Both ends of the pin (37) are threaded to receive nuts (57,58) which, when tightened, insure a tight joint which does not become loose when subjected to the reversing shock loads encountered in a crop cutting operation.

Abstract: The specification discloses a constant torque pivot assembly for connecting a pivot arm supporting a mirror or the like to a support bracket coupled to the side of a vehicle. A pivot axle extends through apertures in the pivot arm and the support bracket and has heads at the extremities to compress therebetween noncorrosive washers and a spring so that relative rotational movement between the pivot arm and the support bracket is resisted by a constant torque.

Abstract: This specification discloses a pivot support bracket for mounting a pivotable member supporting a mirror or the like. The bracket includes a base having an integral flange for strengthening and rigidifying the base and partially covering a coupling including a pivot axle between the base and the pivotable member. Further, the pivot axle serves both as the axis of rotation of the pivotable member and, together with a spring, as a structure for applying a constant, preset, externally nonadjustable biasing force against detent means which rotationally stabilize and resist rotation of the pivotable member with respect to the base. Applying a pivoting force above a certain magnitude to the pivotable member overcomes the biasing force and permits rotation of the pivotable member with respect to the base.

Abstract: A device for use in fitting ophthalmic lenses to spectacles frames. Horizontal and vertical measurements from optical centers of the lenses to their extreme lateral nasal and inferior edges are obtained by attaching the device to the edge of rimless lenses of a properly patient fitted sample rimless spectacles or rims of a similarly fitted rimmed spectacles frame intended to receive the lenses. The sample rimless spectacles or rimmed frame is then placed in the normal position of use upon the patient and a wand component of the fitting device is used to indicate the proper lens optical center location relative to the patient's pupils. Extreme lateral and inferior lens edge measurements are taken from the wand and forwarded to the lens finishing shop for edging of the lenses to final size and shape.

Abstract: An inverted U-shaped bracket is designed to flexibly mount transverse harrow tine supporting bars for independent movement of each other upon longitudinally extending implement carrier arms to permit drag angle adjustment and ability to back up without digging in.

Abstract: A device for spacing overhead, parallel subconductors of a conductor bundle and for damping vibrations of the subconductors. The device comprises rigid, elongated arms pivotally connected together at one end of each arm and having a clamp at the other end of each arm for attaching the arms to respective subconductors. A resilient, viscoelastic pad or disc is disposed between the arms in opposed recesses provided in the arms at the location at which the arms are pivotally connected together, the pad or disc providing the primary damping mechanism for the device.

Abstract: A device for spacing overhead, parallel subconductors of a conductor bundle and for damping vibrations of the subconductors. The device comprises rigid, elongated arms pivotally connected to each other by a rigid means at one end of each arm, with the other end of each arm being radially spaced from the rigid means and provided with a clamp for attaching the arm to a subconductor. Resilient damping devices, such as close coil springs, are secured in the arms at a location adjacent the rigid means pivotally connecting the arms to each other.

Abstract: An industrial fastener, which may be secured or released by a one-quarter turn, includes a rotatable bolt. The bolt has a cam face on the underside of its head, a shank having opposite flats and a screw threaded end portion. A turning means, such as a handle member, slides on the bolt and has matching opposite flats to turn the bolt. The fastener also includes a spring which detents the handle member and an adjustable nut.