Abstract: A fastening system is configured to secure a first panel to a second panel while isolating the first panel from the second panel. The fastening system may include a first retainer, a sleeve, and a fastener. The first retainer may include a planar sheet and a central opening. The sleeve includes a plurality of inwardly-canted tabs, wherein a central channel is formed through the sleeve. The sleeve is secured within the central opening of the planar sheet. The fastener is positioned within the central channel of the sleeve and the inwardly-canted tabs securely engage the fastener to prevent the fastener from retreating within the sleeve. The fastening system may also include a second retainer, wherein a portion of the sleeve snapably secures to a portion of the second retainer.

Abstract: Disclosed is a mounting unit including a bushing having a main part having a penetration hole extending in a lengthwise direction thereof and a flange portion expanding from an upper end of the main part, a stripper bolt having a head portion, a body portion having an insert portion to be inserted into or received in the penetration hole, and a male screw-threaded portion at a leading end of the insert portion Also disclosed is a brake unit assembled using the mounting unit that has good thermal and mechanical stability at a coupling portion between a disk rotor and a rotor hat.

Abstract: The present invention provides a vehicle including a frame, a rear wheel, a swingarm coupling the rear wheel to the frame, and a pivot shaft assembly rotatably coupling the swingarm to the frame. The pivot shaft assembly includes a first shaft having a non-circular outer surface engageable with a corresponding non-circular aperture in the frame. The pivot shaft assembly also includes a second shaft threaded to one end of the first shaft. The second shaft pivotably supports one side of the swingarm with respect to the frame. The pivot shaft assembly further includes a third shaft threaded to the other end of the first shaft. The third shaft pivotably supports the other side of the swingarm with respect to the frame.

Abstract: A mounting device for a motor used in a household appliance for treating laundry items, which can be a washer and a dryer, the mounting device including at least two connecting members operatively associated with the motor; at least two holding members operatively associated with the household appliance wherein each connecting member is configured for mechanically connecting to a respective holding member; and a latching element for operational association with a connecting member and the respective holding member to maintain at least one mechanical connection between the connecting member and the respective holding member.

Abstract: A fastener assembly includes a bolt having first and second ends and comprising a bolt head at the first end and a shank, at least a part of which is screw threaded, a nut for screw threaded engagement with the shank of the bolt, and a template alignment pin, wherein the bolt head is provided with a coupling formation for detachably coupling to a corresponding formation on the template alignment pin.

Abstract: A ballistic resistant bolt to be used in securing straps on a military combat helmet. The bolt includes a single slot within a round bolt head for adjustment in the field if desired. The bolt also has a shaft bearing internal threads for strength. Thus provided, the bolt is resistant to damage from ballistic projectiles. The unique combination of design elements provides the strength and deflective properties required for ballistic resistance in a bolt this size. The bolt is constructed of stainless steel, but other suitable, ballistic resistant material can also be used.

Abstract: A join structure comprises a box section column and spit T-section joined by a high strength bolt and a method secures a nut to an inside of the box section column. A Torque-Shear type high strength bolt is tightly tightened by a controlled tension and a joining method of a steel member uses that bolt. The join structure is comprised of a box section column, a split T-section attached to its outer surface, and a high strength bolt inserted from the outside of the split T-section and fastened with the nut. The nut is secured to the box section column by joining a sleeve secured to a washer formed integrally with the nut and a sleeve of a nut holding part from the outside of the column. The Torque-Shear type high strength bolt has a pintail for controlling the torque at its top.

Abstract: An assembly of a threaded fastener and a stemmed washer is provided, such as for applications in which a standoff is desired between a washer and a mating threaded fastener. The stemmed washer includes a washer portion and a standoff portion extending from the washer portion. The threaded fastener has a retaining structure extending about the washer portion and capturing the washer structure in an assembly with the threaded fastener. For example, the retaining structure may have a washer receptacle for the washer portion. The washer portion is captured in the washer receptacle by a deformed catch section below the washer portion.

Abstract: A fastener assembly for making it easier to tighten and loosen the fastener in confined work spaces.

Abstract: An assembly and method for mounting tow or more panels where a first member is mounted to, into or from a support, a second member is threaded to the mounted first member, and a third member is threaded to the second member when it is already threadingly engaged to the mounted first member, wherein the second member has a portion extending through a hole in a first panel and into the first member so as to retain between the first and second member the first panel, and wherein the third member has a portion extending through a hole in a first panel and into the second member so as to retain between the first and second member the second panel.

Abstract: The invention provides a rivet and method of installing the rivet to attach honeycomb material to other materials. The rivet is installed by drilling a hole through the materials. A back side sleeve of the rivet is inserted through one end of the hole while a front side sleeve with a stem member inserted therethrough is inserted through the other end of the hole such that the head of the stem member and the sleeve portion of the front sleeve are positioned within the sleeve portion of the back sleeve. The shank portion of the stem member is then pulled such that the head of the stem member expands the sleeve portions of the front and back sleeves into the materials to attach the rivet to the materials. A locking collar is also provided to lock the stem member to the front sleeve upon continued pulling of the stem member.

Abstract: An assembly of an internally threaded fastener and a stemmed washer is provided, such as for applications in which a standoff is desired between a washer and a mating externally threaded fastener. The stemmed washer includes a washer portion, a retaining portion and a standoff portion. The retaining portion interfaces with the internally threaded fastener to retain the fastener in the assembly. The stemmed washer may include a skirt which is plastically deformed to capture the fastener. The fastener may include a skirt which similarly plastically to mate with a retaining lip on the stemmed washer. The fastener and washer may be secured in the assembly to permit relative rotation of the fastener with respect to the washer.

Abstract: A fastening clip has an annular portion and two legs extending therefrom, each leg having a locking element. Two identical clips can be fastened together with the locking elements securing against separation. The clips can be used to fasten a panel to opposite walls of an accommodating member by inserting the clips from opposite sides in aligned through bores formed in the panel and the opposite walls, and pushing the clips toward each other until the locking elements engage. The annular portions of the clips have shoulders engaging the panel, while the legs have resilient projections engaging a surface of the through bore of the panel. The legs of each clip are barb-shaped and have distal ends snuggly fitted in spaces formed in the annular portion between the legs of the other clip.

Abstract: A connector comprising an adapter having a threaded bore and a bushing having an external thread and an internal thread. The adapter has a stop on an outer surface to prevent rotation. The bushing is threaded into the adapter bore. A bolt is threaded into a bushing bore using the internal threads. As the bolt is turned the internal threads cause an interference fit between the bolt shank and the threads, temporarily preventing further insertion of the bolt. The bolt is then turned further causing the bushing to unscrew from the adapter toward the mounting surface until the bushing bears upon the mounting surface. The adapter engages with part thereby completely compensating for a gap between the part and a mounting surface. The adapter does not turn through engagement of the stop with an immoveable part. As the bolt is turned further, the sacrificial internal threads are stripped to allow the bolt to be fully torqued into a mounting surface hole.

Abstract: A flanged cylinder assembly includes a cylindrical housing having an axis and defining a bore along the axis. A spirally threaded groove is defined within the bore. The groove is spirally situated about the bore. The groove is arranged to engage a threaded land on a shaft of a fastener to secure the fastener in the bore. A flange is fixedly attached to the cylindrical housing perpendicular to the axis.

Abstract: A fastener structure for fastening a first member and a second member using a taper implant having a threaded hole therein. The taper implant has a frusto-conical outer surface, a projecting portion connected to a larger diameter end and a threaded hole passing therethrough. The first member has a wall portion with a tapered hole extending therethrough and a counterbored portion adjacent a larger diameter end to receive the projection portion of the taper implant. The taper implant is inserted into the hole of the first member and held therein by frictional contact. The second member has a wall portion with a hole therethrough. The second member is positioned in contact with the first member and the two members are fastened together by inserting a male screw through the hole of the second member and threading the male screw into engagement with the threaded hole of the taper implant.

Abstract: A bone member fastener for closing a craniotomy includes a cap and a base interconnected by a narrow cylindrical collar. The cap has an externally threaded stud that screws into an internally threaded bore of the collar, thereby allowing the cap and base to be brought into clamping engagement against the internal and external faces of a bone plate and surrounding bone. In a particularly disclosed embodiment, the base of the fastener is placed below a craniotomy hole with the collar projecting into the hole, and the stud of the cap is screwed into the bore of the base from above the hole to clamp a bone flap against the surrounding cranium. This device provides a method of quickly and securely replacing a bone cover into a craniotomy. The distance between the cap and base can be selected by how far the threaded stud of the cap is advanced into the internally threaded collar. The fastener is therefore adaptable for use in several regions of the skull having various thicknesses.

Abstract: An isolated mechanical fastening system, which includes an exterior first section having a first transverse bore. The system also includes an exterior second section having a second transverse bore, wherein the second transverse bore is aligned with the first transverse bore. There is also an interior third section having a third transverse aperture. This third section is interposed between the first section and the second section and the third transverse bore is aligned with the first and second transverse bores. A fastener is positioned in the first, second and third transverse bore and is fixed to the first section. A polymeric material is positioned in the third section between the fastener and the peripheral wall of the third section.

Abstract: A holding clip for mounting on a longitudinally ribbed bolt having an indicator for providing an audible signal when the bolt is fully inserted. The holding clip has a flexible rod having a free end which extends transversely across a receptacle chamber. The receptacle has a transverse wall situated slightly above the rod. When the bolt is inserted, the free end of the rod is pressed upwardly to audibly impact the transverse wall. The rod may be provided with a tab which protrudes through the transverse wall so that the tab end may be tactilely sensed or visually seen.

Abstract: An isolated mechanical fastening system, which includes an exterior first section having a first transverse bore. The system also includes an exterior second section having a second transverse bore, wherein said second transverse bore is aligned with said first transverse bore. There is also an interior third section having a third transverse aperture. This third section is interposed between said first section and said second section and said third transverse bore is aligned with said first and second transverse bores. A fastener is positioned in the first, second and third transverse bore and is fixed to the first section. A polymeric material is positioned in the third section between the fastener and the peripheral wall of the third section.

Abstract: The present invention provides a join structure comprised of a box section column and split T-section joined by a high strength bolt and a method of securing a nut to an inside of the box section column. The present invention further provides a Torque-Shear type high strength bolt tightly tightened by a controlled tension and a joining method of a steel member using that bolt. The join structure is comprised of a box section column, a split T-section attached to its outer surface, and a high strength bolt inserted from the outside of the split T-section and fastened with the nut. The nut is secured to the box section column by joining a sleeve secured to a washer formed integrally with the nut and a sleeve of a nut holding part from the outside of the column.

Abstract: A fastener has male and female sections, each section having an elongate portion and a head with an outer diameter larger than that of the elongate portion. The elongate portion of the male section has external threads, and the elongate portion of the female section has internal threads for engaging the threads of the male section. The outer end of the male section is castellated and has a threaded cavity. The head of each of the sections receives a tool for tightening the sections together. The female section has a hole through the center of its head that aligns with the cavity in the castellated portion. A tapered, threaded lock screw is inserted into the hole and rotated to cause the threads to engage the cavity, the segments of the castellated portion deforming radially outward and causing a large normal force between the threads on the segments and the threads of the female section.

Abstract: A taper nut retention device mechanically fastens a plurality of pressure reduction disks. A cage end member at one end of the stacked disks has a series of counterbores, each aligned with respective mounting holes in each disk. A second cage end member at the other end of the stack has a series of inwardly converging, tapered bores with shallow taper angles, each aligned with respective mounting holes and a counterbore. A taper nut with a threaded interior and an outer tapered surface with a shallow taper angle matching the tapered bore is inserted into and engageably contacts the tapered bore. A threaded bolt is inserted into the counterbore and through the disk mounting holes to threadably engage the taper nut. Tightening of the bolt and nut mechanically secures the stacked disk assembly. A process for making the stacked disk assembly wherein each disk and the cage end members are plated with nickel and the components are fused together in a brazing oven.

Abstract: A rivet tie for coupling together two or more objects. In one embodiment, the tie includes a cable tie shank and a pawl nut which are integrally connected together by a break-away attachment member of reduced strength. The cable tie shank includes a tail having a first end, a second end, a top surface, a plurality of ratchet teeth formed on the top surface and an enlarged button end integrally formed onto the second end. The pawl nut can be separated from the cable tie shank and includes a top surface, a bottom surface, an elongated central opening and a flexible pawl disposed to project into the elongated central opening. In use, two or more objects are disposed on the tail of the cable tie shank. The pawl nut is then slidably mounted onto the tail so as to effectively sandwich the objects between the enlarged button end and the pawl nut, the pawl sequentially engaging the plurality of ratchet teeth on the strap to secure the coupling of the objects together.

Abstract: A taper nut retention device mechanically fastens a plurality of pressure reduction disks. A cage end member at one end of the stacked disks has a series of counterbores, each aligned with respective mounting holes in each disk. A second cage end member at the other end of the stack has a series of inwardly converging, tapered bores with shallow taper angles, each aligned with respective mounting holes and a counterbore. A taper nut with a threaded interior and an outer tapered surface with a shallow taper angle matching the tapered bore is inserted into and engageably contacts the tapered bore. A threaded bolt is inserted into the counterbore and through the disk mounting holes to threadably engage the taper nut. Tightening of the bolt and nut mechanically secures the stacked disk assembly. A process for making the stacked disk assembly wherein each disk and the cage end members are plated with nickel and the components are fused together in a brazing oven.

Abstract: A high strength fastener for bone fractures. This fastener consists of two members, a male and female. The male member has external machine screw threads that screw into matching internal threads in the female member at a predictable torque so that the force of fixation exerted upon the bone can be approximated by the installer. Because of the effective length of the threads, this fastener is easily adjusted to the proper length without cutting. Both members have a smooth shoulder region proximal to the heads and this shoulder region presents a low-stress bearing surface to each cortical wall. Each member has a head that fits rigidly into an installation tool providing for ease of insertion and fastening in the patient with minimal invasion and little periosteal stripping. Each head has a semi-spherical face that articulates with matching washers and plates, thus allowing the washer to assume the plane of the surrounding bone therefore distributing the load over a greater area.

Abstract: Fasteners for decorative attachments to railings, gratings and the like, such as, in particular, finials attached to the tops of standards of railings, and friezes attached to and/or wrapped-around the sides of standards or posts of railings and to the standards or posts that are the cross-members of gratings, according to the present invention, are constituted of annular bodies made from a material having elastic properties. The annular fastener bodies are fabricated as parts having either an integral, single-piece construction or as sectional, multi-piece parts.

Abstract: A clasp mechanism connector for quickly connecting a computer cable to a receiving member includes a body, a port connector and a biasing member. The biasing member maintains ratchet like teeth particularly useful in grasping internal threading such as that found in computer port housing. The connection apparatus securingly connects the cable connector to a traditional jack screw-type receiving member via actuation of the biasing member. The biasing member may preferably be a resilient member such as a spring or spring-like mechanism.

Abstract: A reach truck with two horizontal support legs supporting the reach truck by load wheels and the end of the legs. Simple means are provided to manufacture such trucks with varying spaces between the support legs.

Abstract: A motor vehicle steering column including a steering shaft, a steering hand wheel, and an attachment between the steering shaft and the steering hand wheel. The attachment includes a cone-shaped outside shoulder on the steering shaft, a cone-shaped inside shoulder in a bore in a hub of the steering hand wheel, a retaining nut on on the steering shaft, and a plurality of outside spline teeth on the steering shaft in mesh with a plurality of inside spline teeth in the bore in the hub of the steering hand wheel. Two of the inside spline teeth are merged to define a double-wide blocked tooth. One of the outside spline teeth is eliminated to define a substantially double-wide longitudinal blocked tooth groove. The blocked tooth has a lip extending beyond the ends of the inside spline teeth which seats on and slides over the ends of the outside spline teeth until the blocked tooth registers with the blocked tooth groove.

Abstract: A fitting for holding and connecting steel pipes comprising: a holder and a coupler which are axially supported with each other at one end with a pin, a bolt which is inserted into a through hole provided at the other end of the coupler, and a cap nut which is provided inside the other end of the holder and into which the bolt is tightened, thereby holding a steel pipe. It is desirable for the cap nut to be fixed to the holder or for the through hole to be an unloaded hole. By so arranging, the steel pipe does not slide off from the tightening fitting, and in case of damage to the bolt, only the damaged bolt may be simply replaced with a new one, thereby making it possible to use the device for a long period of time. Moreover, since the screw portion of the bolt does not protrude, the clothes or body of the worker or passing person are not caught by a projecting end of the device so as to cause the clothes to be ripped or the body to be hurt.

Abstract: A trailer door fastener includes a T-nut and a bolt. The T-nut includes a large washer face with a hollow cylinder extending coaxially from and perpendicular to the washer face. The hollow cylinder contains internal threads running the entire length of the hollow cylinder. The bolt includes a large head with a shank extending coaxially from and perpendicular to the head. On the shank adjacent the head is a knurled portion with grooves running parallel to the axis of the shank. The remainder of the shank has external threads running from the end of the knurled portion opposite the head to the end of the shank opposite the head. The bolt is inserted through aligned holes in the hinge plate and the door panel from the outside of the trailer such that the knurled portion traverses the interface between the hinge plate and door panel. This provides a greater surface area on the bolt to withstand shear forces at the interface.

Abstract: A penetration seal (12) is provided including a flexible patch (14) having adhesive (20) applied to one of the patch's first and second face surfaces (16), (18). An opening (22) is formed in the patch (14) of a size predetermined to fit a particular penetration (24). The opening (22) is slightly smaller than the cross-sectional shape of the penetration (24). In addition, a method of sealing the space (28) between an aircraft penetration (24) and surrounding insulation material (26) is provided. The method includes providing a seal (12) having a patch (14) with first and second face surfaces (16), (18), an opening (22) in the patch (14), and adhesive (20) applied to the first face surface (16). The method further includes applying the patch (14) to the penetration and insulation material by passing the penetration (24) through the opening (22) at the first face and pressing the first face surface (16) to the insulation material (26).

Abstract: An eyelet reinforcement for application to an eyelet of a thin polymer sheet, for the repairing and strengthening of that sheet and eyelet, comprising a first disc of plastic having a first generally hemispherically shaped side and a second planar side, a centrally disposed bore extending through the first disc, from its first side to its second side, and a hollow standoff extending off of the second side of the first disc, in coaxial alignment with the bore in the first disc. A second disc of plastic is arrangable matingly opposed to the first disc, having a first generally hemispherically shaped side and a second planar side, a centrally disposed bore extending through the second disc from its first side to its second side, and an annular surface surrounds each of the bores on the planar sides of the first and second discs.

Abstract: A bone plate fastener for closing a craniotomy includes a cap and a base interconnected by a narrow cylindrical collar. The cap has an externally threaded stud that screws into an internally threaded bore of the collar, thereby allowing the cap and base to be brought into clamping engagement against the internal and external faces of a bone plate and surrounding bone. In a particularly disclosed embodiment, the base of the fastener is placed below a craniotomy hole with the collar projecting into the hole, and the stud of the cap is screwed into the bore of the base from above the hole to clamp a bone flap against the surrounding cranium. This device provides a method of quickly and securely replacing a bone cover into a craniotomy. The distance between the cap and base can be selected by how far the threaded stud of the cap is advanced into the internally threaded collar. The fastener is therefore adaptable for use in several regions of the skull having various thicknesses.

Abstract: A plastic retainer assembly for joining components to the end of a cylindrical post comprises a retainer having a body with a shell extending therefrom. The shell has an axially extending center opening adapted to be closely received on the post. Gripping teeth are carried by the shell and are mounted for radial movement between a radial inner position for gripping the post and a radial outer non-gripping position. A lock ring is engaged about the shell and is slidable axially thereof from a first to a second position. The lock ring includes camming surfaces for driving the gripping teeth to their radial inner position as the lock ring moves from its first to its second position. A latch subassembly is provided for preventing movement of the lock ring from the second to the first position.

Abstract: A fixing device for securing a sheet member to a substrate, having a stud projecting upwardly therefrom, comprises a cap member which is disposed over the stud and has inwardly projecting detents for engaging threaded portions of the stud. The sheet member has an aperture defined therethrough and within which the stud and cap member assembly project. A first clip member has a first flange portion for engaging one surface of the sheet member, and a body portion extending within the aperture of the sheet member so as to surround the cap member. A second clip member has a second flange portion for engaging a second surface of the sheet member, and a body portion which is also inserted within the aperture of the sheet member so as to be interposed between the cap member and the body portion of the first clip member.

Abstract: A craniotomy pin is used to hold a flap of skull in place with respect to the surrounding skull after brain surgery. The pin is preferably an integral piece of biocompatible sterilizable material such as titanium or carbon fiber reinforced plastic. The head of the pin preferably comprises a first spherical segment having side reverse cut edges, and devoid of openings which can collect bacteria. The pin also includes a spherical segment locking portion, and a shaft connecting the head and locking portions. The shaft has a length less than the thickness of a human skull (e.g. about 3.5 mm or less). The locking portion preferably has sharp side edges and corners, and a sphere diameter and spherical extent less than that of the first spherical segment. The reverse cuts allow the head to be grasped with a tool and twisted when the shaft is in an elongated opening formed in the skull during brain surgery, so that the locking portion cuts into the skull and holds the skull flap to the surrounding skull.

Abstract: A vehicle includes a composite panel 10 with nonparallel face sheets 12,14, and a reinforcing core 16, preferably honeycomb, lying therebetween. A fastener 30 lies in an aperture 22 of the panel, and includes a socket 32 with a flange 40 bearing against first face sheet 12, and a body 46 defining a through aperture 54 and a spherical cavity 50. Fastener 30 also includes a swivel 34, with a ball-shaped knob 62 rigidly coupled to a post 64. Knob 62 fits into cavity 50 and can swivel. Post 64 is internally and externally threaded. An internally threaded spacer 36 is screwed onto the exterior threads 65 of post 64, to adjust the length of the fastener to the thickness of panel 10. Either post 64 or spacer 36 includes an additional fastening arrangement. In a particular embodiment of the invention, the additional fastening means of the spacer is a flange, and in another embodiment, it is a threaded portion of the bore of the post or of the spacer.

Abstract: A flexible coupling device including a flexible metal rod or wire within a flexible tube which can be removably secured through the aligned bores of the pieces. The pieces are held in a fixed longitudinal relationship using the axial tension created by the flexible coupling device while still permitting relative rotation between each of the pieces. The flexible metal rod or wire is secured through various mechanism which include radial angular ridges in the interior of the flexible tube and a retaining post having radial angular ridges that interlock with the ridges in the flexible tube such that, as the post is inserted into the flexible tube, the post ridges and the tube ridges interlock to secure the flexible tube. In addition, radial angular ridges on the exterior of the flexible rod interlock with a retaining post having an interior bore with corresponding radial angular ridges as the flexible rod is inserted into the retaining post.

Abstract: A fastener for fastening together a plurality of members, such as the plurality of members comprising a tube plug, and a method for plugging an opening in a solid member, which may be a tube, for preventing the flow of fluid through the opening in a solid member or through the tube, such as a nuclear steam generator tube, comprises a first member, such as a shell, a second member, such as a bolt, and locking structure. A deformable tab portion of the locking structure may have an undercut positioned so that when the second member is installed within the first member, a first surface of the undercut is bent toward a second surface of the undercut thereby plastically deforming the tab portion into a recess in at least one of the first and the second members for automatically securing together the plurality of members.

Abstract: A two-part fastener for use in septoplasty procedures includes a fastener portion having a base with shaft extending perpendicularly therefrom and a retainer having an aperture for engagement with the shaft. The fastener may include indexing means for positioning the retainer in engagement with the fastener portion at discrete spaced apart locations along the shaft. In another embodiment the shaft is slightly larger in diameter than the aperture in the retainer to effect a frictional engagement. Applicator instruments are also provided. In one embodiment the applicator includes two elongated members pivotally connected in the middle. In another embodiment the applicator includes an elongated body which holds a plurality of septoplasty fasteners. A pivotally connected lower jaw holds a supply of retainers. A pusher member drives the fastener through a curved firing chamber, through body tissue, and into engagement with the retainer.

Abstract: An expandable framework structure can be folded for storage and expanded for use, especially as a canopy when a covering is placed on top of the framework. The framework includes a plurality of upright supports and a plurality of edge scissor assemblies that interconnect adjacent ones of the upright supports. Mounts are disposed on the upright supports to fasten outer, rectangular end portions of the edge scissor assemblies. The mounts have sockets which have facing, parallel sidewall portions to receive the rectangular end portions in close-fitted engagement along planar contact surfaces to resist lateral and torsional deflections of the edge scissor assemblies. A non-compressive fastening pin pivotally secures the outer end of each edge scissor assemblies in its respective socket. The mounts on each upright support are relatively movable to allow expansion and contraction of the framework; one mount is preferably a stationary mount and the other a slide mount.

Abstract: A bolt binder, particularly for a file or holder, comprises in combination a bolt, a round head, a press piece, a cap, a washer and, optionally, a connector. In use, the cap is received within the proximate end of the bolt, and the press piece fitted on the bolt can be desirably moved up and down to press against the papers bound thereunder. When the file is going to be closed, the round head and, optionally, the press piece may be removed, and thus the cap can be instead engaged on distal end of the bolt.

Abstract: A fastener assembly to be used in the construction of semi-trailers consisting of a first fastener having a head and a shank, a mating second fastener, and a plurality of radially spaced projecting barbs formed on the shank. The barbs, which may also be spaced axially on the shank, engage in a hole for receiving the first fastener to prevent rotation and removal of the first fastener. The first fastener may also be provided with an encapsulating cover with two sealing points on its underside to seal the fastener to a surface through which the fastener is inserted.

Abstract: A wind instrument is equipped with rotary valve units or keys for changing the length of vibrative air column, and a link mechanism transmits a lever action to the rotary valve unit or the key, wherein a joint incorporated in the link mechanism comprises a shaft member having an external thread and coupled with the manipulating lever, an adjustable screw member with an internal thread, a tubular member actuating the rotary valve unit or the key and retained by the adjustable screw meshed with the external thread, and an elastic member inserted between a bottom surface of the tublar member and a leading end of the external thread portion so that gaps on both sides of the tubular member are adjustable, thereby allowing the tubular member to smoothly rotate.

Abstract: An apparatus for securing a component to a panel to provide variable positioning of the component with respect to three mutually perpendicular axes is disclosed, having an elongate threaded stud, a generally planar member with a cylindrical elongate collar projecting therefrom, the collar being threadably engaged with the stud threads and including threads of an opposite direction on an outer surface thereof. The apparatus also comprises an internally threaded fastener for threadedly engaging the external threads of the collar. The internally threaded fastener and the planar member clampingly engage respective opposite sides of the panel upon tightening of the nut and permit variable positioning of the component with respect to the panel along three mutually perpendicular axes without moving the component.

Abstract: An improved pivot pin which allows individual pin connection of each hammer in the rotor of a shredder is disclosed. The pivot pin includes male and female pin members which interengage in a tight fit so as to function as a single pin when fitted together. A bore extends through both of the male and female pin members, with the bore through the female pin member being threaded. A securing device such as a socket head capscrew passes through the male pin member from the outer to the inner end portion thereof and is threadedly received in the female pin member.

Abstract: A washer insert is made preferably of plastic for use with a bearing plate and a mine roof bolt. The bearing plate includes an upper surface, lower surface and a hole passing therethrough. The roof bolt includes a shaft having a head attached to the shaft. The outer diameter of the head is greater than the outer diameter of the shaft. The washer insert includes a hollow first section having a first end and an inner diameter equal to or greater than the outer diameter of the roof bolt shaft and less than the outer diameter of the roof bolt head. A flange attaches to the first end of the first section extending outwardly from the first section and coaxial with the first section.

Abstract: A device for screwing to the floor from below, a mechanical part which has previously been placed against the underside of the floor of a motor vehicle body, provides for the mechanical part which is to be connected to be arranged so that at least one reference pin projects upwardly to engage a corresponding reference hole in a wall of the body floor from below. The reference pin has a through-hole. A sleeve with an upper end portion of smaller diameter is fixed to the upper side of the wall of the body floor, coaxially with the reference hole, and defines a threaded hole for engagement by a screw which can be inserted through the hole in the reference pin from beneath. The sleeve also includes a base portion of larger diameter for receiving the outer surface of the part of the reference pin which projects above the wall of the floor through the reference hole so as to allow the centering of the threaded hole which is to be engaged by the screw with the hole in the reference pin.