Abstract: A self-propelled machine for continuously laying an overhead line extending above a track and attached to pylons spaced alongside the track, which comprises machine frame movable along the track in an operating direction, a power-driven, vertically and laterally adjustable work platform mounted on the machine frame for an operator assigned to attaching the overhead line to the pylons, a storage drum mounted on the machine frame, a length of the catenary and/or the contact wire of the overhead line being reeled on the storage drum and the drum being rotatable at a pay-out speed for unreeling the catenary and/or the contact wire, and a drive control for adjusting the moving speed of the machine frame in response to the pay-out speed of the catenary and/or the contact wire.

Abstract: A piston for an internal combustion engine with a separate head and skirt which are joined by a piston pin. The ring belt extends downward from head and terminates above the pin. The space between the lower edge of the ring belt and a section of the head defines a cooling oil ring space. A depression is formed in the head and is partly defined by the section. The second land has the largest diameter and exclusively guides the piston. The height of the second land is in the range of three to seven percent of the piston diameter. The diametrical second land clearance is 1.5% to 2.5%. The diametrical third land clearance is one percent of the piston diameter. The diametrical top land clearance is in the range of 1.5 mm to 2.0 mm.

Abstract: A releasable fastening element for tying, bundling and fastening articles having at least one head element, including a longitudinally extending shaft with a leg extending from one end thereof to form a hook for engaging the material to be bound. The fastening element includes an elastic strap which is connected to the other end of the shaft. The elastic strap has locking elements placed at predetermined points along its length for individually and removably connecting the strap to a locking member. The locking member, which is located on the shaft, is formed by two oppositely aligned insertion grooves which are arranged parallel and adjacent to the shaft. The locking elements, which are wider than the grooves, are restricted from passing through the locking device, thus forming a loop in the strap for engaging the material to be bound. The locking member can also be formed as a sleeve with open ends mounted on the shaft parallel to the longitudinal direction thereof.

Abstract: It is desired to use different needle pitches in the operation of an apparatus for needling a web without a need for replacing the needle board, the stripper and the optionally perforate backing. This is accomplished in that the holes provided in the needle board and serving to receive the needles, the holes of the perforate stripping plate and the holes in an optional perforate backing plate are arranged in at least two groups of holes and the holes in each row of each group are uniformly distributed over the working width of the apparatus.

Abstract: A continuously advancing track working machine for compacting ballast comprises a self-propelled machine frame supported by undercarriages on the track for mobility in an operating direction and a track stabilization assembly vertically adjustably mounted on the machine frame between the undercarriages. The track stabilization assembly comprises drives for vertically adjusting the assembly, oscillatory rolling tools arranged for engaging the rails, vibrators for oscillating the rolling tools, and spreading drives for pressing the rolling tools against the gage sides of the rails.

Abstract: Electrical coupling device with a measuring contact bank fixedly mounted on an appliance frame and a bush contact bank arranged inside a housing, where one of the front ends of the housing can be fixed on the appliance frame while its other front end can be fastened by means of a hook provided on the housing and a corresponding nose on the apparatus frame. In said electrical device, the housing (5) is provided with a frame (9) and modular bush contacts (11) are arranged in the inner part (9') of the housing.

Abstract: An apparatus for placing a carriage linked to a frame of a track working machine on a track comprises a rail sensing element mounted on the carriage for sensing a respective track rail, the rail sensing element being positioned in the radial plane of the flanged wheel when the carriage is placed on the track and emitting a control signal in this position. A hydraulic drive for displacing the carriage transversely with respect to the track links the carriage to the track working machine frame. In response to the control signal, the operation of the hydraulic drive and the transverse displacement of the carriage is interrupted.

Abstract: Semiconductor wafers, in particular, silicon wafers, with differently poled front and rear sides and high geometrical quality can be fabricated by double-sided polishing if the wafer surfaces are differently polarized during the polishing process. This can be achieved in a simple fashion, in that during polishing, an electric field is set up between the upper and lower polishing plates. This can be accomplished by providing the upper polishing plate between the plate surface and the polishing cloth with a thin conductive layer insulated with respect thereto, on which a voltage can be impressed, while both polishing plates are grounded to the frame.

Abstract: A reusable wreath which allows easy attachment and detachment of accessories. A strip of VELCRO.RTM. is wound around the wreath base to permit easy arrangement and adjustment of accessories.

Abstract: A seal for a container, in particular, a refrigerated container having a door or two wings of the door, and having a door jamb having a corner zone comprising:(a) a strand shaped outer sealing profile made of elastomeric material;(b) the door having an outer side, the door having an inner side; and the door having a face side; and the outer profile being fastened on the face side of the container door or wing of the door;(c) the outer profile having two bow-shaped sealing lips, one of which is an outer lip for sealing the gap between the container door and the door jamb, and, respectively, the gap between the two wings of the door, with the outer lip embracing the corner zone of the door jamb and wing of the door, respectively;(d) a strand-shaped inner sealing profile serving as an inner seal being an elastomer arranged on the face side of the container door or wing of the door;(e) a first C-shaped rail for anchoring the inner sealing profile and a second C-shaped rail for anchoring the outer sealing profile,

Abstract: Apparatus for producing metal alloys in semi-liquid or paste-like state, constituted by a plurality of modular elements (1a--1b--1c, and so forth), each of which is formed by an elongated hollow body with two mutually opposite open faces, transversely to which through-tubes 8--8a--8b are inserted, which tubes can be connected with an external source of controlled-circulation coolant liquid, such as a diathermic liquid, or air mixed with atomized water.

Abstract: Sintered microcrystalline ceramic material based on .alpha.-Al.sub.2 O.sub.3 with an addition of 0.01 to 2.0 weight percent of a cerium compound, consisting of a microcrystalline matrix and 0.1 to 30 volume percent whisker-like needles, whereby said cerium compound is mainly present in the needles. The whisker-like needles give this material a special tenacity combined with good abrasive results.

Abstract: To make a friction ring which is intended to be used in clutches or brakes and has a sinter-bonded friction facing, an annular blank is blanked from flat sheet metal and is provided with a sinter-bonded friction facing. Thereafter the blank provided with the sintered friction facing is shaped to form a conical or cylindrical friction ring and grooves distributed around the periphery of the friction facing are embossed into the friction facing at the same time. In order to ensure that that shaping operation will result in an adequate dimensional accuracy, the operation to emboss the grooves into the friction facing is carried out in such a manner that the backing ring is similarly embossed.

Abstract: A magnesium oxide in fine powder form, which can be used to manufacture high-density ceramics, has an MgO content greater than 95 wt. %, preferably greater than 98 wt. %, a particle size less than 15 .mu.m, and a BET specific surface area less than 20 m.sup.2 /g. The statistical mean of the particle shape factor of the primary particles lies between 1 and 1.5. The particles are coated with a hydrophobic, surface-active substance.

Abstract: A barrier is comprised of a plurality of hollow shaped bodies of plastic material and each shaped body comprises a wide base portion having a bearing face supporting the shaped body on a surface and a narrower upper portion, the wide base and narrower upper portions having two side walls, the portions of the side walls of the upper portion merging into the portions of the side walls of the base portion. Respective partially cylindrical end faces extend between the side walls, the end face at one end of the shaped body being convex and the end face at an opposite end being correspondingly concave whereby adjacent end faces of successive ones of the shaped bodies in the barrier mate with each other.

Abstract: The present invention consists of a single-dose espresso maker for preparing infusions in general, to be disposed of after being used. It consists of two glass-shaped containers, one of which contains water to be heated and the other of which, equipped with a filtering bottom wall, contains the infusion product; the mutually opposite mouths of both said containers are coupled with each other by grafting, with the interposition of a water-sealing disk-shaped element of pre-established strength, which can be broken by the pressure developed by heating water; and of at least one perforated disk-shaped element. After heating the water containing element, the pressure of generated water vapor causes the breakage of said sealing disk, enabling water to flow through the filter-container containing the infusion product and hence the desired infusion to be produced and fed to a container associated with the espresso maker.

Abstract: An installation for processing or assembling components, which comprises a succession of transport and work stations. Each station comprises a housing member including a lower base frame and an upper base frame, at least one of the housing members supporting a straight conveying track for a workpiece carrier carrying the components and at least one of the housing members supporting intersecting conveying tracks for the workpiece carrier, the conveying tracks including vertical and lateral guides for the workpiece carrier.

Abstract: A threadless coupling for pipes has a cylindrical coupling body having longitudinally-extending slots or sections along the entire length thereof, a pair of grip sections forming grooves facing oppositely from each other on the outside of the edges of both ends of the opening section of the coupling body, and a grip case which is slidable fitted for coupling on the pair of grip sections. The grip case is tapped with a hammer of the like to slide onto the pair of grip sections, thereby compressing the coupling body around the conduits to be coupled by decreasing the gap between the pair of grip sections and accordingly reducing the diameter of the coupling body.

Abstract: There is provided a method of metering monocalcium saccharate into a sugared juice. The process includes taking a sample of the juice to be analyzed, diluting the sample with alcohol in order to form a precipitate, separating the precipitate by filtration, dissolving the precipitate in deionized water, acidifying the solution obtained by the addition of phosphoric acid and metering the saccharose into the said solution. The method is usable, in particular, in sugar refining in the production of sugared juices by the alkaline diffusion process.

Abstract: In a process for intermittently spraying a setting pasty composition mixed with a tempering liquid, in particular for building up refractory linings of metallurgical vessels, the composition is conveyed from a preparing station (6) at which it is prepared, to a delivery nozzle (11). In order to prevent the composition from thickening or hardening in the duct (15) leading to the delivery nozzle (11) when delivery is interrupted, it is conveyed during delivery stops in a circuit that includes the delivery nozzle (11).