Abstract: An expansible plug for anchoring in a drilled hole having an undercut, comprises a threaded bolt having a leading end with an expander cone at the leading end, an expansible sleeve having a leading end and a rear end and provided with a plurality of longitudinal slits starting from the leading end of the expansible sleeve and extending for a part of a length of the expansible sleeve. The expansible sleeve has a cylindrical portion arranged at the leading end of the expansible sleeve, and also an annular groove adjoining the cylindrical portion and tapering toward the rear end of the expansible sleeve. The groove is bounded in a region of the slits by a rounded portion. The expansible sleeve is composed of a fiber-reinforced, high-strength plastic material.

Abstract: A nail comprises a shank having an expansion portion with two curved expansion limbs defining a free space therebetween, a first straight shank portion and a second straight shank portion located correspondingly before and after the expansion region, the free space being formed as a longitudinal notch starting from the first straight shank portion and extending to the forward end, the notch having a notch base rising in direction toward the forward nail end, and a wedge arranged in the longitudinal notch and bearing against the notch base, the wedge having an upper edge slightly projecting beyond the shank and being displaceable in direction toward and along the rising notch base.

Abstract: An expansible fixing plug, comprising a body part composed of a plastic material and having a leading end and a rear end, the body part having a longitudinal channel extending from the rear end for insertion of a fixing screw and the like. The longitudinal channel has a cylindrical portion approximately corresponding to an external diameter of the screw. A narrowing portion adjoins the cylindrical portion. The body part also has a slot extending from the leading end over a part of a length of the body part. The narrowing portion of the longitudinal channel has a cross-section starting from the cylindrical portion and having a lozenge shape. The narrowing portion of the longitudinal channel in a plane of the slot has a corner to corner width which remains the same for an entire length of the narrowing portion and substantially corresponds to a diameter of the cylindrical portion.

Abstract: A device for holding two drink containers which can be arranged in the compartment of a central console of a motor vehicle has a holding ring for lateral fixing of the one drink container and a holding frame for the second drink container which are moved out of a position in which they are recessed in the compartment. The folded-together holding ring, together with the holding frame, assume a position projecting from the compartment. From that position, the folded-together holding ring moves into its opened-out holding position beside and above the holding frame. Movement from the recessed position can be effected automatically.

Abstract: The holder for a sound recording medium housing includes a base plate (1); a slider (2) mounted on the base plate (1) so as to be displaceable between a storage position and a removal position; a releasable locking device (17) for releasably locking the slider (2) in the storage position; a spring (8) for urging the slider (2) from the storage position to the removal position; and a clamping device for securing the sound recording medium housing on the slider (1) and preventing rattling noise due to motions including vibration.

Abstract: A prestress-monitoring element for screw-type anchors is arranged to be inserted like a washer between a nut and an article to be fixed and includes a pressure ring and an expansion ring. If the nut provided for fixing is tightened, then the resultant axial prestress causes the pressure ring to expand the expansion ring until the nut lies against the expansion ring. In this end position, a prestress required by the construction of the prestress-monitoring element is achieved. The position of the nut on the pressure ring can be monitored visually, as a result of which the prestress can be indirectly monitored.

Abstract: The mortar composition for fixing an anchoring element in a drilled hole in a substrate consists of a water component and a mineral mortar paste held separately from the water component in a crushable container. The mineral mortar paste includes a mixture of mineral mortar and a liquid solvent chemically inert towards the mineral mortar and the mineral mortar paste is hardenable with the water component to form a hardened mortar compound. The water component consists of water and a thixotropic agent so that the water component acts like a paste when not subject to shear forces but flows when subject to shear forces such as those created by the anchoring element advancing in the drilled hole. The thixotropic agent is advantageously amorphous pyrogenic silicic acid.

Abstract: The expansible metal anchor (1) for anchoring in a hole drilled in a component includes a shank part (2) and an expander cone (4) having a polygonal cross-section defining several faces (13) at its front end. On each face (13) of the expander cone (4) an expansible segment (5) is arranged spaced from that face by a gap (7) corresponding approximately to the distance (8) by which the expansible segments (5) project radially from the shank part (2). Each expansible segment (5) is joined to the shank part (2) at its end face directed towards the shank part (2) by web members (6, 6') constituting predetermined break points. As the expansible anchor is driven into the hole drilled in the component, the web members (6,6') break off, so that the expansible segments (5) are displaceable on the faces (13) of the expander cone.

Abstract: The anchoring cartridge for anchoring a fastening element in a drilled hole has two chambers. One chamber contains from 1.0 to 10% of a hardener component dissolved in a mixture of styrene and an unaccelerated radical-curing resin and the other chamber contains an accelerator mixed with another mixture of styrene and unaccelerated radical-curing resin. By including unaccererated radical-curing resin in both chambers a homogeneous curing of the components is ensured.

Abstract: The composite anchoring device consists of an anchoring rod (7) and a cartridge (3) capable of being crushed by the anchoring rod (7). The inner container (5) extends over the length (1) of the cartridge (3) and advantageously includes a central section (8), end sections (10) at each end of the inner container and conical sections (9) connecting each end section (10) with the central section (8). The inner container sections are crushable in succession as the anchoring rod is driven in. The individual container sections (10,9,8) have different volumes and are designed with first breakpoints (11) and second breakpoints (9') of graded resistance so that they are crushed in succession from the ends of the inner container towards the middle starting with the first breakpoints (11) in the end sections (10), and release water held in the respective inner container sections to the surrounding hardenable bonding agent to provide a stronger fixing.

Abstract: The drilling apparatus for making a drilled hole with an undercut includes a drive device for rotating a hollow drilling shaft (3); a drill bit holder (23,38) held in the hollow drilling shaft (3); a drill bit (4,26) having a drilling head provided with laterally projecting cutting edges (25) projecting from the drill bit holder (23,38); a device for swivelling out the drill bit holder (23, 38) with the drill bit from a drilling center line (5) including at least one control element of the drill bit holder, a sliding sleeve (11) surrounding the drilling shaft (3) and a swivelling-out element (21,39) connected to the movable sliding sleeve and engaging the control element to swivel out the drill bit holder (23, 38); and a device for raising and lowering the drive device (2) together with the drill bit holder (23,38) and the drill bit (4,26). In one embodiment the swivelling-out element is a sliding block and the control element is a cam surface in a slot provided in the drill bit holder.

Abstract: The drilling device has a radially resilient shaft (3) which allows radial displacement of the drill bit (4) and the drill head (5). The radial displacement can be caused by a vibration device (8), but a self-excited oscillation of the resilient shaft (3) can also provide the desired radial displacement of the drill bit and the drill head. The drill shank (2) has a sleeve-shaped shank extension (17) provided with a damping chamber (18) filled with a damping agent (19) and the resilient shaft (3) is in the damping chamber (18) which is sealed by a radially resilient seal (21) surrounding the resilient shaft (3).

Abstract: An expansible anchor of metal for anchoring in a hole drilled in masonry has a bolt with several connected expander cones forming a thread and an expansible sleeve provided with an internal thread matching the expanding cones. To achieve high holding fores and low draw-in force, expansible portions are formed at uniform intervals along the internal thread of the expansible sleeve by U-shaped channels. The expansible sleeve is manufactured from powdered metal in an injection molding method using a system of binders combined with subsequent removal of binders and sintering, and an injection-molding tool having a removable thread core for the internal thread of the expansible sleeve.

Abstract: The double connector for connecting two bodies, especially for connecting two slabs of stone, marble or the like, consists of two anchoring elements (4,5), one in each body being connected, and a sleeve-like connecting piece (1) including two stud parts on opposite ends. The connecting piece (1) is connectable with the stud parts on the anchoring elements located in drilled holes provided in the bodies. So that the double connector, in addition to having a simple assembly, can absorb comparatively large tensile and compressive forces, at least one anchoring element (4,5) consists of an expansion element (7) received in one (13) of the drilled holes and a anchor core (6) consisting of a cone (8) and a bolt part (6') extending from the cone (8) and provided with a bolt collar (9) spaced from the cone (8). The bolt collar (9) of the bolt part (6') engages or locks in a suitable undercut (15) provided in one of the stud parts.

Abstract: A spectacle holder, in particular for installation in motor vehicles, comprises a carrier having a bottom wall and a rear wall with spectacle rests, and arranged on the carrier a spectacle support which can be quickly and easily adapted by the user to the size of different types of spectacles by means of an adjusting device.The spectacles can be removed from and inserted into the spectacle holder and the spectacle side pieces can be opened out and folded up in the spectacles using one hand.The spectacle holder is in the form of a standardized assembly and can be built into a wide variety of protective housings; it can be moved by means of an extension mechanism from an inner rest position, in which the spectacle holder is enclosed substantially in the protective housing, into an outer rest position, in which the spectacles can be easily removed from the spectacle holder or inserted therein.

Abstract: The fixing system for facing panels (1) consists of a substructure fixed to a wall. The substructure has supporting elements (6) on which profiled panel supports (2) connected to the rear side of the facing panels can be hung. The supporting elements (6) include, for each facing panel element (5), one locating supporting element (7) and at least three non-locating supporting elements (8). The locating supporting element (7) is preferably arranged in an upper corner region of a facing panel element (5) and is fixedly connected to the corresponding profiled panel support (2) of the facing panel element (5). Furthermore, the locating supporting element (7) has an adjusting means allowing horizontal and vertical adjustment. The non-locating supporting element (8), preferably at the other top corner region of the facing panel element (5), is likewise provided with an adjusting means for vertical adjustment.

Abstract: A device for holding a drink container comprises a collapsible supporting ring having a first ring half and a second ring half, horizontally arranged hinges which couples the ring halves with one another so that the ring halves are movable from a vertical collapsed position to a horizontal supporting position in which the supporting ring is completed, pivot guides arranged on both sides of the supporting ring to secure the first ring half during a swivelling movement from the vertical to the horizontal position and vice versa, and guide rails arranged horizontally on both sides of the supporting ring so that the second ring half is mounted in the guide rails and guided while being folded out and up.

Abstract: A method is provided for manufacturing interlocking parts, in which at least one part is manufactured by powder injection molding. To compensate for the amount of contraction of one of the parts manufactured by powder injection molding and, if desired, to produce an additional clearance, a separation layer of plastic material is applied between the interlocking parts. After the injection process to form the separation layer, the separation layer and the binder are removed by a binder-removing and sintering process step. The method is also applicable to powdered metal extrusion for manufacture of double-layered metal parts.

Abstract: The cassette holder for magnetic tape cassettes includes locking devices (14,15) for locking the reel hubs of a magnetic tape cassette mounted on a transversely displaceable sliding element (3). Control wedges (9,10) are formed on both sides of the sliding element (3) which, as a magnetic tape cassette is inserted, come into contact with an enlargement (24,25) formed on the flat faces of the magnetic tape cassette (23) so as to displace the sliding element (3) laterally. The sliding element (3) with its locking devices (14) is thus aligned exactly with the position of the reel hubs (26) for engagement of the locking devices (14,15) with the reel hubs (26).

Abstract: A container for installing in a vehicle has a housing having an open front side, a cover pivotally mounted on the housing at the open front side, a storage receptacle formed as a storage tray and connected to the cover so that when the cover is opened the storage tray is displaced out of the housing into a removal position, a slide guidable and lockable in the housing, the storage tray being hingedly mounted on the slide, a drive member moving the slide toward the open front side of the housing, and a coupling link which connects the storage tray to the cover and having a control pin connected to the storage tray and displacing the storage tray outside the housing into the removal position in which the storage tray is partially uprightly oriented.