Abstract: An anchor rod for use as a composite anchor is secured in a receiving borehole by one of a hardenable or curable organic and inorganic mortar mass. The anchor rod has a means (3) at a trailing end region (2) for engaging a load. The anchor rod has an anchoring region (4) insertable into the receiving borehole and has a thread-like profiling (5) for interaction with the mortar mass injected into the receiving borehole. The thread-like profiling is a coarse screw thread (5) and has a thread pitch (s) which reduces in the axial direction from the leading end toward the trailing end of the anchor rod (1).

Abstract: An adhesive insert anchor including an anchor body and a screw member for insertion into a drilled hole in a substrate containing an adhesive. The anchor body further including an integral friction segment and an adhesion segment. The friction segment includes an internally threaded cavity in which to receive the screw member and a knurled portion. The adhesion segment includes a cylindrical section and a plurality of saucer-shaped buttons positioned along its length ending with a terminal button. The buttons on the adhesion segment provide greater surface area for contact between the adhesive and the anchor. The friction segment has an external diameter substantially the same as the diameter of the hole drilled in the substrate, thereby providing a friction fit between the anchor body and the walls of the substrate hole.

Abstract: An anchor bolt for anchoring with a compound mass in a hole drilled in a building component comprises a bolt element having a leading end and a rear end, elements for fixing an article at the rear end, and a mixing attachment arranged at the leading end of the bolt element and having a point. The mixing attachment has an outer surface provided with a plurality of radially projecting lugs which are arranged circumferentially and axially spaced from one another.

Abstract: I claim a self fusing fastener device with radially expansible wings that permanently lock into place through an adhesive means which causes the fastener to act as a single rigid attaching element that resists pull out as a result of the interference fit produced by the radially expansible folding and flaring elements.

Abstract: The storable glass tube sealed on both sides contains the two components of a two-component adhesive and fibers or chips incorporated therein in separate sections which are in immediate contact, being located in said glass tube such that there are portions of both components present at as many as possible intersecting planes perpendicular to the longitudinal axis of said glass tube.

Abstract: An adhesive bonded nutplate assembly is provided for mounting onto a substrate, particularly such as a composite substrate having an opening therein for passage of a fastener such as a bolt or screw. The nutplate assembly includes an integral liner sleeve to project through the substrate opening when the nutplate assembly is mounted thereon. An installation tool includes a tapered nose in combination with a pulling mandrel to pull and separate a fixture pin from the nutplate assembly while flaring a leading edge of the liner sleeve to lock the nutplate assembly in place.

Abstract: A method and apparatus are disclosed for joining a plastic insert or component to a plastic base having a recess therein. The component is provided with integral projections thereon that are separated from one another by spaces. The component is inserted into the recess with the projections force-fitted against the plastic base. The plastic of projections is caused to flow into the spaces, and the plastic of the base is caused to flow into the spaces where the plastics are intermixed. Then, the flowed, intermixed plastics are brought back into a solid condition with spaces now filled with solid, intermixed plastics that interlock the components to the base against rotation relative to one another and to prevent them from being pulled apart. The preferred projections are spaced in rows and have inclined sidewalls extending outwardly to small, cross-sectional, free ends for rapidly melting and flowing into the spaces.

Abstract: A bolt and nut formed from a plastic material are provided with the bolt having proximate and distal ends and the nut having an interior surface defining a bore. Raised projection members are formed integrally extending from the nut interior surface into the bore and together define a diameter slightly smaller than the shank diameter. In this manner, an interference fit is provided between the shank and projection members. With the bolt shank inserted through aligned holes in parts to be fastened, the nut can be mounted on the distal end of the bolt shank, as by a force fit, and slid thereon by exerting an axial force on the nut until the parts are clamped between the bolt head and nut.

Abstract: A member (1) for insertion into a borehole (9) in a receiving material (10) has an axially extending generally cylindrical hollow body (2) closed at its leading end (4) and open at its trailing end (5) and into which a mortar mass and anchor member can be inserted. The hollow body (2) has a sieve-like mesh wall. At least one circumferentially extending strip (8) of a compressible elastic open pore material is secured on the outside surface of the hollow body (2) for cleaning the surface of the borehole while the member is inserted into the borehole.

Abstract: A method forming a pressure-free expansion anchor in a cylindrical borehole (2) with an undercut (3) in a receiving material forming an anchorage, with an undercut expansion dowel (5) inserted into the borehole. The dowel (5) has an axially-extending threaded rod (9) extending through a sleeve (6) with outwardly displaceable segments (7) on the sleeve for effecting a positive lock in the region of the undercut. The method involves introducing a curable mortar (M) into the region of the undercut, where the mortar forms a bond with the region of the undercut and the displaced elements (7) of the sleeve (6).

Abstract: A system for fastening a dowel to a wooden element includes a drilling assembly for forming a blind hole in the wooden element which includes a first portion which is cylindrical and a second portion which tapers outwardly in frusto conical shape from the lower end of the first portion. A dowel having initially a cylindrical shape is inserted into the blind hole and then expanded outwardly into the frusto conical portion. The expansion can be carried out by a tapered plug which is forced into the end of the dowel, by a wedge member which is forced into slits in the end of the dowel or by expansion of the dowel itself from an initial compressed position by absorption of moisture from an adhesive.

Abstract: A construction anchor for mounting an object on a structure of masonry, concrete, wood, metal or the like includes an anchoring portion and a cap. The anchor is adapted to be inserted, anchoring portion first into a pre-drilled adhesive-filled hole. The anchoring portion has a threaded bore, which includes an unthreaded close-fit-counterbore portion outward of a threaded portion. The cap prevents dust, dirt and adhesive from entering the threaded bore, and has an upper surface with a removable central area. When the adhesive has set, holding the construction anchor within the hole, the central area is removed, and a screw or bolt is inserted through the hole left by the removal and engaged with the threaded portion of the threaded bore. The unthreaded close-fit-counterbore portion of the threaded bore provides a stretch zone for the screw or bolt.

Abstract: A method of manufacturing a composite article having a front face containing a visible icon, which front face may be planer or arcuate. The method includes the steps of forming a core having perforate and imperforate portions in the core thereby creating a stencil defining the icon; forming an anvil having supporting surfaces in the shape of the icon and seated in supporting contact with the stencil; and forming the front layer of the article by injection molding an opaque plastic covering the front face of the core except for the imperforate portions of the stencil defining the icon. The composite article includes a core having a front face and a rear face with perforate and imperforate portions of the core forming a stencil defining the icon. An opaque plastic layer is formed on the front face of the core and covers the stencil except for the icon portion thereof.

Abstract: A fastener assembly for mounting to a panel to allow connection of associated structures thereto comprises a fastener receiving and retaining member formed of plastic and including an elongated sleeve-like body having a head end and a terminal end with a central aperture extending axially therebetween. A flange extends radially from the head end and a fastener receiving bore is carried at the terminal end in alignment with the central aperture. Radially extending retaining elements are carried on the sleeve-like body. A first set of openings is formed through the flange and a second set of openings is formed through the sleeve-like body at a location closely adjacent the flange. A sheet of temperature expandable sealer material is carried on the sleeve-like body adjacent the flange such that when the said member is mounted to a panel by extending the sleeve-like body through an opening in the panel the sheet of expandable sealer material is compressed between the flange and the panel.

Abstract: An anchor bolt has locking elements arranged over a part of the outer surface and formed as radially projecting lugs which are spaced circumferentially and axially from one another. Therefore a good mixing of a compound mass and reduction of the driving-in resistance is obtained. Therefore the outer diameter measured over the lugs of the anchor bolt can be matched approximately to the diameter of the drilled hole. Simple and inexpensive manufacture of the anchor bolt can be provided by powdered metal injection molding method using a system of binders with subsequent removal of the binders and sintering.

Abstract: A fastener element (2) has first and second body portions (4, 6) that are mechanically interlocked. The first body portion (4) has an integral outer end disk (20) with a flat outer radial surface (26). The second body portion (6) has circumferentially spaced legs (48) that extend along chordal surfaces (28) on the first body portion (4) and terminate axially inwardly of the disk (20). The legs (48) interlock with projections (30) on the surfaces (28). The legs are tapered to direct binding material from a fill opening into flow passageways and then toward a vent opening during a molding-in procedure to install the element (2) in a structure.

Abstract: This invention is related to a convenient and multi-purpose rack structure, especially it is related to a rack structure whose materials can be plastic metal or porcelain, all materials typically used in towel racks, tooth brush holders, sinks, electric appliances, chandeliers and decorations. This invention discloses a rack structure comprising a fixing part (3) which has both ends bent and screw holes (41), screws (4) inserted through an installing part (2) which has an opening (2A) to receive the fixing part (3), a strengthen holder (5), and a hole to insert a bolt (4) to sustain the installing part (2) on the wall. The strengthen holder (5) forms steps to adapt the holder on the bottom of the opening (2A) of the installing part (2).

Abstract: An adhesively secured fastener for use with a wide variety of substrates which provides a safer and more effective method of storing, transporting, delivering and using a quick setting adhesive while protecting against contact of the adhesive contained therein with the user of the fastener, and having a pressure sensitive adhesive for holding the fastener in place while the quick setting adhesive cures.

Abstract: A fixture (structural element) is readily mounted to a surface of a substrate (such as concrete) by embedding and adhering an internally-threaded anchoring element (sleeve) in a hole in the substrate. Preferably, the anchoring element is recessed below the surface of the substrate ("embedded"). To aid in inserting the anchoring element into the hole, an insertion tool may be employed. The system is re-usable, in the sense that the fixture can be removed and replaced, or the fixture can be removed and the hole in the substrate covered. In the latter case, a gauge element may be inserted into the anchoring element prior to sealing over the hole. A template is provided to ascertain the depth that the anchoring element is embedded within the substrate, as determined by the cross-sectional dimension of the gauge element at the surface of the substrate. A wedge-element is also described for fitting to the end of a threaded rod, for forming an anchor stud.

Abstract: An attachment anchor assembly for securing a component (15) to a base material (U) includes an axially extending anchor rod (11) having an axially extending anchoring region and a centering sleeve (18) laterally enclosing the anchor rod in a sealing manner and spaced from the anchoring region. A sealing element (19) is located between the centering sleeve (18) and the anchoring region and laterally encloses the anchor rod (11) in a sealing manner. The sealing element (19) has a transverse sealing surface facing towards the anchoring region and the sealing surface can be displaced axially towards the centering sleeve.

Abstract: An anchor sleeve and bolt assembly adapted to chemically fasten a fixture or other object having a mounting hole to a masonry body. The assembly compresses a bolt provided with a head engageable by a torque tool and a shank extending from the head, an anchor sleeve threadably received on the shank and extending therefrom to define a void between the end of the shank and the end of the sleeve, and a deformable collar interposed between the head of the bolt and the sleeve. To install the assembly, it is inserted through the fixture mounting hole into a hole drilled in the masonry body whose depth is such that the bolt head then lies adjacent the fixture. Deposited in the drilled hole is a charge of an uncured flowable bonding agent which when the assembly is inserted therein, then spreads into the space between the sleeve and the bank of the drilled hole whereby when the agent is cured and hardened, the sleeve is then chemically anchored in the hole.

Abstract: Cable bolt structure, related components and method related to the support, in active and passive modes, of mine roof strata for achieving desired ground control.

Abstract: A mechanical expansion anchor and radially expansible shell for use therein having particular application in combination with resin grouting materials. The anchor includes a conventional, tapered camming plug moveable axially upon a mine roof bolt to move the shell leaves outwardly into gripping engagement with the drill hole wall. The shell is distinguished by the provision of grooves in the outer surfaces of the shell leaves, extending between the upper and lower ends of the leaves. Components of a resin mix inserted into the drill hole in advance of the expansion anchor, carried on the end of the bolt, flow through the grooves in the outer leaf surfaces to the area below the anchor.

Abstract: A very simple and economic method and closure for quickly repairing a puncture in a vehicle tire utilizes a screw having a concave slot beneath its head. A sealing material such as an adhesive rubber is placed in the slot and is used to seal the hole when the sealing screw is threaded into the hole. The design provides easy, quick, efficient and very low cost repair for a puncture in a tire, not only for temporary repair but for long term repairs. The design is simple and includes only two parts: a screw having a spiral convex, or thread which affixes the screw in the tire and which further includes a concave slot under the screw head, and a sealing material such as adhesive or sticky rubber which is secured in the slot. The screw body is fixed in the tire hole and the head presses the sealing material onto the hole.

Abstract: An anchor assembly for use in adhesively bonding an anchor consisting of a threaded anchor member having an adhesive release coating its threaded portions and having a hollow end dimensioned to receive the threaded portion connected to the end of the threaded portion and extending from it to provide a space within the adhesive in which the threaded portion of the assembly can be contained.

Abstract: A construction fastener assembly to be secured with an adhesive within an aperture of a structure such as masonry, concrete, metal or the like where the fastener assembly includes an elongate fastener member having a first end for insertion within the aperture and a second opposite end accessible from the exterior of the aperture. An adhesive retaining member is secured to the first end of the fastener member for accepting adhesive therein, for flexibly collapsing upon insertion of the retaining member and the fastener member within the aperture and for ejecting the adhesive from the retaining member into the aperture to secure the fastener member therein.

Abstract: The process for anchoring securing elements in drill holes, particularly screws, nails, anchors, clamp irons, and bolts, by using two-component adhesives and metal additives, is such thata) the drill holes optionally rebored, cleaned and degreased in advance are filled up to from half to three quarters with a compressible mixture of highly wear-resistant fibers or chips made of metals, polymers and/or ceramics with an average length smaller than half the drill hole diameter, subsequently, a blocker is optionally added, then both adhesive components are introduced successively or simultaneously, and then the residual portion of the required amount of fibers or chips is filled in, orb) a kneadable mixture is prepared from a compressible mixture of highly wear-resistant fibers or chips with an average length smaller than half the drill hole diameter and both adhesive components, and the mass is forced into the drill holes,and subsequently, the securing elements are inserted and optionally secured.

Abstract: A tapered split nut with depressed by coil spring downward in a central hole of a outer cylinder body is installed so as it can move upward. A hanging bolt is inserted from the bottom while it is pushing said split nut up. Owing to the upward movement of the hanging bolt, the split nut moves downward due to a pushing movement with pressure by the coil spring, and the split nut engages with and bit the thread portion of the hanging bolt.

Abstract: A fastening system includes a fastener having a threaded shank and a head, the head having upper and lower surfaces and depending integrally from the lower surface of the head, the lower surface including a channel concentric relative to the shank. The shank of the fastener includes its first channel extending along a length and a second channel also extending along a length of the shank. Within the first shank channel is provided a bonding base material, and within the second shank channel is provided a bonding activator material. Rotation of the fastener within a medium to be fastened will cause an extrusion of the bonding base and activator materials into the annular channel in which a curing reaction therebetween will occur, effectively bonding the lower surface of the fastener head to an exterior surface of the medium to be fastened.

Abstract: A rock bolt shell and cone. An expansible shell having a cylindrical outer surface and raised ridges in relief on the exterior of the shell. One or more ridges are located along a curve non-congruent with a circumferential circle of the cylinder. In a disclosed embodiment, each ridge lies along a helix of the cylinder and ridges are paired such that the helix of a first extends in one rotational direction while the curve of a second of the pair extends in the other rotational direction. Each helix forms an angle of forty-five degrees with a center line of the cylinder. Ridges intersect such that "V"-shaped projections extend along the outside of the shell. The vertices of certain of the projections project a radially maximum amount while each of the legs of the "V" taper radially inwardly toward the cylindrical surface as the leg extends away from the vertex. The cone, threaded for installation on a bolt rod has one or more axial indentations to improve grout flow about an installed bolt.

Abstract: An adhesive system capable of use to secure two substrates to one another. The adhesive system uses a resin and a hardener which are encased in a polymerized, integral film.

Abstract: There is disclosed an aerospace fastener system in which a threaded bolt fastener is secured with a free spinning threaded nut or collar and in which the engagement of the threaded members is fixedly secured by an adhesive. In this invention, the length of the bolt fastener is preselected such that when the fastener is applied in a maximum grip condition, the end of the bolt fastener does not project beyond the top surface of the nut or collar. In this invention, the bolt fastener can even be slightly shorter than the length necessary to reach the top surface of the nut or collar when the fastener still meets the tensile load requirement of the specific application. Preferably the adhesive also includes an ultra-violet light fluorescent pigment so that upon ultra-violet illumination, the correct application of the fastener can be easily observed.

Abstract: A multiple cable rock anchor comprising an assembly of a plurality of individual elongated cables having an attachment for joining a first end of each cable in association for common movement, or wrapped to loosely hold them together without restricting relative sliding movement in bending. The assembly of multiple cable rock anchor being manipulated by bending for installation in a borehole formed in a geologic structure where there is a drift dimension less than the desired length dimension of the elongated cables, thereby forcing the cables to be bent upon being inserted in the borehole. Further, the assembly of cables have different strengths, dimensions and lengths.

Abstract: A heat insulating support tool is provided for a concrete wall structure. The support tool may include a pedestal member having a through-hole extending axially through the pedestal member, a fixing rod-like member extending through the through-hole of the predestal member, and a spacing holding rod-like member embedded in the concrete wall. The fixing rod-like member may include a rotating member at a front end thereof and an enlarged head member at a rear end thereof. In addition, a connecting device may be provided for connecting one end of the spacing holding rod-like member to the fixing rod-like member so that the connection of the spacing holding rod-like member and the fixing rod-like member can be released by rotating the rotating member.

Abstract: A system for inserting and retaining a fastener between two generally parallel spaced apart webs formed on a first workpiece. The fastener is inserted using ultrasonic energy to deform the material of the webs to engage an axial force resisting portion and a torsional force resisting portion of the fastener with the material of the webs. The present invention includes the fastener which is constructed for use in the system, as well as an article employing the fastener for attaching the first workpiece, to which the fastener is attached, to a second workpiece.

Abstract: An anchor bolt sleeve for sliding over an anchor bolt to create a void therearound when concrete is being poured to secure the anchor bolt in the concrete. The sleeve has a one piece hollow body with a generally cylindrical sidewall joined at each end by a respective endwall. An annular boss extends outwardly from each endwall and has a reduced diameter from that of the body sidewall. A second boss extends outwardly from the center of the first boss and has a smaller diameter than the diameter of the first boss. An inner diameter of each of the bosses is sized to correspond to a predetermined outer diameter of a usual anchor bolt. An alternative embodiment provides a hollow sleeve body having rigid end portions joined by an intermediate section with a collapsible corrugated sidewall. The collapsible sidewall defined by a plurality of corrugations which extend horizontally around the section, enables the axial length of the sleeve to be easily adjusted in the field after being mounted on an anchor bolt.

Abstract: There is disclosed an aerospace fastener system in which a threaded bolt fastener is secured with a free spinning threaded nut or collar and in which the engagement of the threaded members is fixedly secured by an adhesive. The length of the bolt fastener is preselected such that when the fastener is applied in a maximum grip condition, the end of the bolt fastener does not project beyond the top surface of the nut or collar, or is even slightly shorter than the length necessary to reach the top surface of the nut or collar. There is also disclosed a blind fastener system in which the adhesive is applied to the threads of the core screw of the blind fastener which are engaged upon installation of the fastener.

Abstract: Disclosed is an insert comprising a tubular plastic body having a hollow, axially extending threaded interior, and a plurality of interlocking portions preferably in the form of integrally formed plastic protrusions extending outward from the plastic body. The insert is maintained by force-fit engagement within a corresponding recess in a plastic base. Thereafter, the plastics of the body, protrusions and base are brought to a flowable condition at their interface to integrally bond the insert to the base and/or to interlock portions of the base and insert. The threaded interior of the insert remains intact during this insert bonding procedure to then accept and threadably engage with a threaded member, which may be metal or any other material. The metal threaded fastener may be already threaded into the insert at the time of bonding together of the plastics of the insert and base so that a driving of the metal fastener into the base is eliminated.

Abstract: A method of installing a metallic threaded insert in a composite/rubber pl consists of threading a first insert section into a pre-formed hole in a fiberglass composite panel, and bonding a rubber panel over the fiberglass composite panel. The rubber panel includes an opening which is positioned over the first insert section. A second insert section is threaded onto an elongated positioning panel bolt and then the positioning bolt ms threaded into the first insert section. The second insert section is threaded downwardly on the positioning so as to be in adjacent relation to the first insert section, and the opening in the rubber panel is filled with a rubber compound. The rubber compound is cured, preferably at room temperature, to set the second insert section in position and the positioning bolt is threaded out of the first and second insert sections.

Abstract: A fastener element (2) has first and second body portions (10, 34) that are mechanically interlocked. The portions (10, 34) define an axial opening (12, 14) that opens onto a radial end surface (25) of the body (10, 34). One portion (10) has a radial shoulder (32) facing away from the end surface (25) and defining an increased width inner portion (14) of the axial opening. A floating member (56) positioned in the axial opening (12, 14) has an outer end (66) adjacent to the end surface (25) and an opposite inner end with a head (60) that is received in the inner portion (14) and abuts the shoulder (32) to transmit axial loads created by engagement of the member (56) by a fastener. Flow passageways (18) are formed around the element (2), which is molded in a core cavity (88) in a honeycomb panel (80) using potting material (96) .

Abstract: A blind rivet, especially for the production of rivet connections between load carrying components in aircraft construction, has a rivet shaft or mandrel with a thickened end and a pulling end. The shaft has a conical section tapering from the thickened end to the pulling end. Grooves run around at least the conical section. The rivet mandrel or shaft is axially received in a rivet sleeve with a set head. Adhesive is provided in the grooves, especially along the conical section of the blind rivet. The adhesive hardens in the seam or gap formed between the rivet sleeve and rivet shaft when the blind rivet has been set. This two-component blind rivet has a structural strength equivalent to that of a solid rivet so that it can also meet higher structural strength requirements. Additionally, the adhesive prevents cold welding between the shaft and the sleeve and seals the gap.

Abstract: An assembly for inserting an attachment coil in concrete with a screw having a releasable spacer and an expandable coil mounted thereon. The spacer initially positions the screw in a hole for location of the coil and has a slot to permit the spacer to pop off the screw as the screw is screwed into the coil in the hole. The spacer may have longitudinal ribs to bridge any lateral space between the screw and the hole. The coil has an exterior diameter less than the interior diameter of the hole for free movement of unexpanded loops without creating cross threading during insertion. A second coil can be inserted closer to the surface by assembling two spacers on a screw for location of the second coil, with both spacers popping off the screw as the screw advances into both coils. The use of two coils in a hole allows positioning of coils in both compression and tension zones on opposite sides of a neutral axis of the structure.

Abstract: An elongate fastener having an engaging surface engageable with an engaging surface of a fastener's mate includes a hole extending through a portion of the fastener and having a top opening and a bottom floor, a locking pellet disposed near the bottom floor, a discharge channel communicating between the pellet and through the engaging surface of the fastener and opening out toward the engaging surface of the fastener's mate, and an impact pin in the hole having a top portion protruding through the top opening and a bottom portion near the locking pellet, whereby the pin drives the locking pellet through the discharge channel against the engaging surfaces of the fastener and the fastener's mate whereby to lock the fastener against the fastener's mate.

Abstract: The present invention is directed to an anchor assembly for installing a threaded mine-roof bolt under tension in a bore hole formed in underground passageways, mines, and the like. The anchor assembly includes a two compartment resin cartridge and a mechanical expansion unit. A support collar is threaded on the bolt to restrict axial movement of the mechanical expansion unit. The mechanical expansion unit includes a camming plug and an expansion shell. The expansion shell has a plurality of fingers extending upwardly from an annular collar. Spaces or slots are formed between adjacent fingers. Each of the plurality of fingers include a vertically extending rib for forming channels between the external surfaces of the fingers and the side walls of the bore hole to permit the free flow of resin. The side surfaces of the fingers adjacent the uppermost portion thereof are tapered so that substantially V-shaped notches are formed between adjacent fingers.

Abstract: The anchor for anchoring in a drilled hole in concrete via a joining composition, includes a threaded bolt consisting of a straight shank portion having an expander cone at one end thereof to be inserted in the drilled hole and a threaded portion at the other end, the expander cone having an outer surface and an end face and widening toward the end face; an expandable sleeve arranged on the threaded bolt enclosing the expander cone and structured to be expanded by the expander cone and a plastic covering on the end face and the outer surface of the expander cone and an adjoining part of the straight shank portion. The complete plastic covering over the expander cone and the adjoining part of the straight shank portion ensures that the joining composition does not bond the expandable sleeve to the threaded bolt, thus hindering subsequent expansion of the expandable sleeve by the expander cone due to crack formation at the drilled hole.

Abstract: A device for reinforcing a rear surface of a wall includes a receiving bag (4) attached to one end of an axial extending filling stub (1). Webs (3) are attached to the receiving bag (4) and the filling stub (1) so that the webs and receiving bag can be folded from a radially outwardly extending position toward the axis of the filling stub whereby the receiving bag and the webs can be folded into a position so that the combination of the webs (3), the receiving bag (4) and the one end of the stub (1) can be inserted through an opening (6a) in the wall (6). In the inserted position, the webs (3) return to the radially outwardly extending position along with the receiving bag (4) and the bag is filled with a hardenable mass (7) through the filling stub (1). A fixing element (5) is inserted between radially and circumferentially extending ribs (2) on the filling stub (1) located on the opposite side of the wall from the receiving bag (4).

Abstract: A spacing bolt assembly for securing to a surface includes a cylindrical inner bolt portion having a first end with external threads in a first direction and a second end with a head structure, an outer bolt portion having an axial bore for receiving the inner bolt portion and having a first end with external threads in a second direction and having a second end, and an aperture in the surface containing a central bore segment sized and threaded in the first direction to receive the first end of the inner bolt portion and a counterbore segment sized and threaded in the second direction to receive the first end of the outer bolt portion, so that the outer bolt portion can be screwed into the counterbore segment to a depth leaving a desired exposed length of the outer bolt portion protruding, and the inner bolt portion can be inserted through the axial bore and screwed into the central bore segment until the inner bolt portion head structure abuts and engages with friction the second end of the outer bolt porti

Abstract: An anchoring means for anchoring by a bonding mass in a drilled hole in a concrete part or the like has a threaded bolt with a reduced portion and an expansion cone followed by a head part, forming at the same time a stop shoulder. Over the reduced portion and expansion cone is slipped an anchoring sleeve which is provided on its outer surface with a plurality of longitudinal grooves. By the longitudinal grooves and the elasticity of the anchoring sleeve consisting of plastics material, the possibility is obtained of compensating for the enlargement of the drilled hole when a crack forms, thus making it possible for the anchoring means to be used in the zone subject to tensile forces.

Abstract: An apparatus and method for fastening together spacecraft panels includes the use of fastener pairs, one of which has preformed therein an aperture which is larger in diameter than the body of a tolerance takeup piece which is to pass therethrough. A washer which takes up the clearance is adhesively fastened to one of the fastener halves, and allowed to cure while the panels are in their desired position. Thus, a high-tolerance mating pair can be finalized in position at a late state in fabrication, without undesirable drilling or reaming. In a first particular embodiment, a flat washer, having an inside diameter which closely fits the corresponding bolt, is adhesively fastened over the preformed oversize aperture of a fitting.

Abstract: A construction anchor for mounting an object on a structure of masonry, concrete, metal or the like includes a metal anchoring portion and a plastic cap. The anchor is adapted to be inserted, metal end first, into a pre-drilled adhesive-filled hole. The cap has a flange that is larger than the hole diameter, so that the anchor may be inserted and seated in the hole at a consistent depth. When the adhesive has set, a screw or bolt is inserted through the plastic cap to engage the threads in an internal bore in the anchoring portion. The plastic cap serves not only to determine the depth of the anchor in the hole, but also to prevent adhesive and other material from entering the threaded interior of the anchor prior to use.