Abstract: The disclosure relates to an expansion pin consisting of a shank which at one end is provided with means for securing articles and at the other end is provided with a point. In order to obtain an anchoring having further expansion effect, the shank has an aperture in the form of a slot in which there is inserted a plastically and/or resiliently deformable insert which thickens the shank of the expansion pin in the region of the slot.

Abstract: A device for injecting a fixing agent for anchoring a fastening element in a drilled hole comprises a vessel which includes a housing, which contains one component of the fixing agent and can be sealed, an injection nozzle and a plunger. The plunger is movable into the vessel housing. An injection nozzle is arranged on the plunger. The overall length of the plunger and the injection nozzle matches the height of the interior of the vessel housing. Thus, all of the fixing agent can be injected as a result of pressure applied to the base of the vessel housing.

Abstract: An expansible wall plug consisting of a slotted metal sleeve which engages a portion of its length into the article to be fastened, and an expansible portion which may be expanded by driving in a fastening screw. The expansible wall plug may be expanded using a fastening screw having a wood screw thread, because the expansible body consists of a plastic material and is provided with a tapered cavity and is slotted over a portion of its length. At least a portion of the length of the expansible body is inserted into the expansible portion of the metal sleeve, and is locked in a position in which the slot plane of the expansible body is aligned with the slot plane of the metal sleeve by way of projections on the periphery of the expansible body engaging recesses on the periphery of the metal sleeve.

Abstract: The anchoring device for anchoring in a hole formed in a porous structural material includes an expansible sleeve-shaped member formed with elongated slots, an expandable conical member and an intermediate expandable element which is slotted and positioned between the sleeve-shaped member and the expandable member. Upon inserting and rotating an actuation screw into the sleeve-shaped member, intermediate element and expandable conical member they are expanded and anchored in the hole of the porous material.

Abstract: A high-pressure packing device for injecting hardenable synthetic resin into cracks in concrete includes a sleeve of plastics to be wedged into a hole drilled in concrete in the region of the crack and an injection needle attached to the sleeve. The outer surface of the sleeve is formed with grooves starting from the front end face of the sleeve and extended axially of the sleeve to permit the synthetic resin injected into the base of the hole through the sleeve to rise along the grooves towards the crack in concrete to seal the crack.

Abstract: A method of securing a double-wall panel having a plurality of hollow chambers to a substructure of a greenhouse or the like, which has a number of crossing rods. A number of clamping devices spaced from each other are mounted on the transversal rods of the substructure. Each clamping device includes a hooked anchor inserted into the wall of the panel and a U-shaped clamp connected to the anchor and placed over the transversal rod. One clamping device is positioned on the rod in the center of the lower wall of the panel and is secured to that wall to produce a central anchorage, which is immovable in all directions. Two lateral clamping devices are positioned on the same rod at each side from the central clamping device. The U-shaped clamps of the lateral clamping devices are placed over the rod with play.

Abstract: An expansible fastener for anchoring in a hole provided in a support structure. The fastener includes an expansible cylindrical anchor formed with an expansible slotted portion and having a central bore started in the cylindrical portion of the anchor and projecting through the slotted portion up to the leading end of the anchor, and an expander pin having a cylindrical shank and an expander cone. The bore is filled with a bonding agent. The expander pin resting against the base of the enlarged portion provided in the hole of the support structure if driven into the central bore of the expansible anchor so that the aforementioned shank is received in the bore and the expander pin is connected to the anchor by the bonding agent.

Abstract: A hinge joint for joining hollow panels utilized for covering swimming pools includes two leaf-like connecting parts with overlapped portions each having an axial bore to receive a hinge pin. Each connecting part has a supporting bar hooked into a bore provided in the outside face of the cover panel and extended into the cavity formed in the hollow panel.

Abstract: A mounting element for mounting an object on a support structure has an elongated expansion sleeve member insertable into a mounting hole of the support structure and having a longitudinal opening, and an elongated expander member insertable into the longitudinal opening so as to expand the expansion sleeve member and having a round thread and a pointed profile thread arranged on the peaks and/or valleys of the round thread and having a pitch corresponding to the pitch of the latter.

Abstract: The fastening device of the present invention is designed as a dowel which can be anchored in brickwork by a screw, a nail or similar anchoring means. The dowel has a tubular body extending from the brickwork at one end and is provided with a holding device at the other end. The holding device then supports a wire grating at a fixed distance from the brickwork surface. The wire grating acting as a means for support for the plaster applied to it.

Abstract: Disclosed is a fixing device for connecting objects to a hollow board having a plurality of spaced cells defined by transversely spaced first and second panels which are joined to one another through a plurality of spaced webs therein between. The fixing device comprises a connecting member for fastening objects thereto and at least one elongated support member for disposing within the boards. The support member is provided with first and second opposed ends and the connecting member is arranged substantially perpendicular to one of the opposed ends, whereby a pull-out force acting on the connecting member due to the objects supported thereby is substantially received by the supporting member when the device is disposed in the board.

Abstract: A box-shaped container for use as a cold frame is composed of a number of side wall panels and a cover. The side wall panels and the cover are formed of hollow transparent panels of plastics. The side walls are connected to each other by connecting angle-shaped elements forming stop faces abutting against respective end surfaces of the adjacent walls to be connected. The connecting elements are formed with holes receiving stud pins extended through respective bores in side wall panels and locked thereon by locking members.

Abstract: A mounting arrangement for mounting a sanitary object with wider and narrower adjoining cutouts and an opening with the axis extending substantially normal to the axes of the cutouts, has a bolt member anchorable in the wall on which the sanitary object is to be mounted, a nut member having a wider portion substantially corresponding to the wider cutout of the sanitary object and a narrower portion substantially corresponding to the narrower cutout of the object, and being screwable onto the bolt member so as to fix the object between the nut member and the wall, and an actuating member arranged to extend through the opening of the sanitary object and to engage the nut member and to be supported by the latter so as to screw the nut member onto the bolt member and to thereby fix the object.

Abstract: A guiding element for a toy vehicle has an elongated body portion with at least one longitudinal groove, a retaining member received in the groove of the body portion and bendable together with the latter so that it is fixed in each of a plurality of different positions and retains the body portion so that the latter can assume one of a plurality of curved shapes, and a plurality of slots extending from at least one side of the body portion and opening into the longitudinal groove so as to render the body portion bendable in one plane.

Abstract: A pin-shaped connecting element for connecting toy structural elements each having at least two openings, has an elongated body part which can be received in one opening of the structural elements and has an elongated slot and a plurality of transverse slots subdividing the body part into a plurality of independently resiliently yieldable sections, and an arresting member insertable in an intersecting opening of the structural elements and engageable into a respective one of the transverse slots so as to arrest the elongated body part in the structural elements. The arresting member may have one or two projections engaging in one or two transverse slots in the region of the transverse opening.

Abstract: An arrangement for mounting a flexible film or the like on a substrate has an inner clamping member connected with a substrate and having an undercut portion adjacent to the latter, an outer clamping member surrounding the film in the region of the undercut portion of the inner clamping member so that the film is clamped between the inner and outer clamping members, and a disc-shaped carrying member associated with the outer clamping member so as to be pressed by the latter against the film and carrying a locking element arranged to lock the outer clamping member in clamping condition.

Abstract: A tool for drilling a cylindrical hole with an enlarged end undercut portion comprises a shank with cutting edges and a drill collet screwed to the shank by a knuckle thread. The collet is provided with a stop collar having a semispherically-shaped face supported in a matingly configurated recess provided in a stop plate so as to form a swivel bearing. A portion of the collet is closed by a bell connected to the stop plate and formed with a central hole to receive the shank of the tool.

Abstract: A mounting element for supporting an object to a support structure consists of an anchoring part, an intermediate part and an extension part which is in engagement with the object to be fixed. The anchoring part is surrounded by a sheathing in which binding material is injected so as to fill out a hollow space in order to anchor the mounting element. The intermediate part is provided with an internal portion having a sealed bore hole in which a screw is penetrating after the binding material is hardened and the feed device is withdrawn. Through inserting a sleeve into the extension part which achieves a bracing of the object.

Abstract: A sliding contact for a toy rail vehicle has a body part having a convex slide face and a depression which is provided in the convex slide face and arranged so as to form on the latter an edge by which said slide face linearly contacts with a current-conductive rail and which removes extraneous particles from the current-conductive rail during sliding over the latter. The depression may have a circular cross-section so that the edge formed by the depression is annular. The depression may have a diameter which exceeds the width of the rail so that two curved edges are formed one of which is a leading edge, whereas the other of which is a trailing edge.

Abstract: A contact block has a plurality of contact units each formed by two U-shaped strips inserted one inside the other. The strips have base portions connected with one another and with a support member by rivets. Each strip has two lateral portions each provided with a slot extending over a part of the length thereof so as to form two resilient tongues in each lateral portion. Thereby, each contact unit has eight tongues forming four contacts. The contacts are separated from one another by a grid of insulating material.