Abstract: A chain has chain links (110) having basically spherical geometry (116) and four flattened surfaces (118) equally distributed in the circumferential direction. A chamber (120) is formed in the chain links (110) in which a connecting member (112) is retained. A back side of the chain links (110) is furnished with a spherical joint surface (124). The connecting member (112) has on its side remote from the said joint surface (124) a head (150) which is furnished with a concave joint surface (162) which runs spaced apart from the outer surface of the chain link (110) and interacts with a complementarily convex joint surface (143) which is carried by the adjacent chain link (110) in the interior of the chamber (120).

Abstract: The invention relates to a unit (10) for the production of track elements (32), comprising a number of retaining devices (14), arranged serially in the longitudinal direction of the unit. Said units each comprise a base element (20), which can be moved on wheels (34) and at least one support device (28), connected at least indirectly thereto. The above is arranged, such that a section (30, 172) of a pre-assembled track element (32) may be placed thereon, in the alignment which essentially corresponds to that of the most recent fitting position. Furthermore, the above may be positionally adjusted relative to the base element (20).

Abstract: According to the invention, a unit (10) is proposed for the production of track elements (25), which comprises a plurality of clamping devices (14) arranged one after another in the longitudinal direction of the unit. Provided in the clamping devices (14), there is in each case a pedestal element (16), which is fixed to the floor, and a clamping table (24) which is connected at least indirectly to the pedestal element (16). A portion of a track element (25) may be placed on each clamping table (24). In order to enable the prefabrication of track elements (25) whereof the curvature, longitudinal profile and camber are individually different, the clamping tables (24) are positionally adjustable with respect to the particular pedestal element (16).

Abstract: A chain has chain links (110) having basically spherical geometry (116) and four flattened surfaces (118) equally distributed in the circumferential direction. A chamber (120) is formed in the chain links (110) in which a connecting member (112) is retained. A back side of the chain links (110) is furnished with a spherical joint surface (124).

Abstract: In a dock unit for maintenance of aircraft there is provided, in addition to an outer support which supportingly engages against a frame disposed parallel to the longitudinal axis of the aircraft in the vicinity of the end of said frame and is adjustable, a further support which is located further in and is likewise adjustable. The distance between the two supports is greater than the largest dimension of the wings of the aircraft to be maintained, measured in the longitudinal direction of the fuselage. One of the supports can therefore be temporarily retracted in order to move a wing past and below this support.

Abstract: An apparatus for scanning a rail segment (10) for the track layout of a magnetic levitation system comprises marks (162), which are carried by an inspection unit (36) and the position of which is scanned using an electronic camera (164), which is disposed on the end of the rail segment (10). The inspection unit (36) movable along the rail segment (10) comprises a position sensor, which measures the position of the inspection unit (36) relative to one of the ends of the rail segment (10). The position of the inspection unit (10) is communicated wirelessly to an evaluating unit (168), which is further connected to the output of the electronic camera (164).

Abstract: An apparatus for producing a succession of regularly spaced recesses in an elongate workpiece, in particular in a rail segment for a magnetic levitation system, having a machining head, which comprises at least one tool for the cutting of material, and having a device for producing a relative movement between machining head and workpiece. The machining head is disposed on an undercarriage comprising two sets of guide means, which cooperate with differently inclined boundary surfaces of the workpiece. The undercarriage additionally comprises at least one positioning means, which is capable of cooperating with recesses disposed in the workpiece, in particular being displaceable between an idle position raised off the workpiece and an operating position cooperating in a force-type locking manner with the workpiece.

Abstract: In a dock unit for maintenance of aircraft there is provided, in addition to an outer support which supportingly engages against a frame disposed parallel to the longitudinal axis of the aircraft in the vicinity of the end of said frame and is adjustable, a further support which is located further in and is likewise adjustable. The distance between the two supports is greater than the largest dimension of the wings of the aircraft to be maintained, measured in the longitudinal direction of the fuselage. One of the supports can therefore be temporarily retracted in order to move a wing past and below this support.

Abstract: The invention relates to an adjustable casting mold with a plurality of axially displaceable molding pins. Each molding pin has a self-locking threaded mechanism by way of which the molding pin is supported on a carrier plate. The carrier plates on which in each case a plurality of adjustable molding pins are mounted are, in turn, connected to a molding-box housing member to be adjustable in a different manner perpendicular to the mold parting surface.

Abstract: A reusable carrier for yogurt pots or the like has pot receptacles that transmit vertical forces in a stack of carriers and that surround the yogurt pots. The lower ends of the pot receptacles of each carrier co-operate with positioning ribs of the top surface of an underlying carrier, so that layers of stacked carriers can not be horizontally moved in relation to each other. The carrier as a whole is a stackable single piece made of a deep-drawn foil that is cheap to produce and easy to clean before being reused.

Abstract: A stackable packaging unit (10) has a lower supporting pallet (12), a marginal wall arrangement (14) made of corrugated cardboard and a covering pallet (16) having the same geometry as the supporting pallet. Both pallets are moulded parts with feet (28 to 32) and have receptions (34 to 38) for the feet on their upper surface. The feet and the feet receptions are asymmetrical, so that the feet of an upper pallet engage the underlying feet receptions (34 to 38) over a short distance (Z1) in a first relative position of two adjacent pallets (12, 16) but engage them over a longer distance in a second relative position. The pallets (12, 16) may thus be closely stacked after use of the packaging unit and transported back to their point of origin.

Abstract: The alleyway-monitoring device disclosed has, mounted at different heights, two light barriers (16 to 26, 28 to 30), the higher of which is at a height at which the light beam can be broken only by fork-lift trucks. The light barriers produce output signals which enable the direction of motion of the objects which break the beam to be determined, the output signals being passed to associated up/down counters (50, 52) which are in turn connected to the inputs of a monitoring circuit (54). The monitoring circuit triggers an acoustic alarm (56) if non-permitted counter-reading combinations occur.

Abstract: A dock for carrying out work on an aircraft has a plurality of support frameworks disposed on either side of the aircraft fuselage. The dock also includes a plurality of support work platforms supported to the frameworks. The support frameworks are movable sideways to allow the aircraft to be docked and undocked therebetween. The frameworks include longitudinal beams which are disposable so that a wing of the aircraft may extend freely between other adjacently placed port framework elements. Support frameworks have horizontal guide means for guiding vertical guide frames along which movable support slides may be disposed and each carry a work platform. In this manner, workers have free access to the exterior skin portion of the aircraft with great facility.

Abstract: In a dock for carrying out work on an aircraft (18), support slides (34) which are carried by support frameworks (20-24, 28) are provided and are adjustable in a horizontal and a vertical direction. The support slides (34) each have guide rails (36, 38), running in which is a bottom section (40) to which a work platform (30) is fastened via two scissor-type linkages. The support slides (34) may be moved into an aligned position so that a work platform support section (40) is movable from one support slide to the other.

Abstract: In order to be able to move pellets (10) in different sections of a conveying path at different speeds on chain conveyors (14, 16), without having to use step-by-step transmissions, it is proposed to place the pellets on at least two chain conveyors (14, 16), which travel at different speeds. By controlling the frictional resistance between the contact members (22 to 28) of the pellets (10) and the endless conveyors (14 and 16), it is possible to determine by which of the chain conveyors the pellet is respectively moved in synchronism, whereas a substantially power-free relative movement is possible between the pellet (10) and the other chain conveyor. The last-mentioned chain conveyor then serves momentarily solely for the vertical support of one side of the pallet.

Abstract: A conveying unit for a pallet conveyor has a link chain (24), on whose pins (40) there has been placed a respective carrying cap (26). The carrying caps (26) have a U-shaped transversal section and sit with their legs (44) on the chain pins (40). The carrying element (26) end surfaces (52, 54) which are to the front and rear as viewed in the transport direction are shaped so as to be convexly cylindrical and concavely cylindrical respectively, the axes of the cylindrical surfaces coinciding with a respective pin axis.

Abstract: A supporting device for a data display unit (32) consists of a base plate (26) which can be swivelled about a vertical axis (24) and on which a supporting plate (30), on which the data display unit (32) stands, is longitudinally displaceable. A slide, which supports the bearing specifying the swivel axis of the base plate (26), is additionally linearly displaceable (38).