Abstract: There is provided a molded connection piece and a method of making the same, in particular a boring saddle made of thermoplastic material and having a heating wire capable of conducting an electric current for producing a welded joint between the molded connection piece and an object to be joined with the molded connection piece. The heating wire is embedded in both surfaces of a disk-shaped core, in each case following the course of a spiral-shaped groove, and the core having the heating wire is joined with the molded connection piece. The disk-shaped core is formed of a material which, on melting, combines itself with the material of the molded connection piece.

Abstract: A mobile ballast regulator comprises an elongated machine frame supported by undercarriages on the track, a ballast plow connected to the machine frame, a ballast storage container mounted on the machine frame, and a carrier frame which has a front end linked to the machine frame rear end for pivoting about axes extending vertically and transversely to the longitudinal direction of the elongated machine frame. A further undercarriage supports the carrier frame rear end for mobility on the track. A ballast sweeping and receiving arrangement comprises a ballast broom connected to the carrier frame for sweeping ballast off the track and a conveyor band having an input end arranged to receive the ballast swept by the broom.

Abstract: A structure comprises uprights and connecting beams as well as wall panels and vertically spaced apart horizontal partitions inserted between said uprights and beams. To permit the structure to be assembled and disassembled without a need for tools, the wall panels are provided with vertical edge flanges, which extend into grooves formed in the uprights, the uprights are interlocked with the connecting beams, and the wall panels and horizontal partitions are held between upper and lower connecting beams against a vertical displacement.

Abstract: A ballast tamping machine comprises a tamping head comprising pairs of vibratory tamping tools immersible in the ballast and reciprocable in the operating direction and opposite thereto for tamping ballast under the ties, a track lifting and lining unit preceding the tamping head in the operating direction, and a device for substantially uniformly distributing ballast. The device has an outlet associated with each tamping tool for discharging ballast at the associated tamping tool.

Abstract: The invention relates to a process for the preparation of pyridine-2,3-dicarboxylic acid esters using novel maleic acid esters as starting materials. In the process, in a first process step, 2,3-dihalomaleic acid esters are reacted with ammonia, or ammonium salts, with the exclusion of water at a temperature of at least 50.degree.0 C. to form novel 2-amino-3-halomaleic acid esters, and these are subsequently reacted further in a second process step with .alpha.,.beta.-unsaturated aldehydes, or ketones, in the presence of an acidic catalyst and acid-binding agents at a temperature of at least 50.degree. C. with heat being supplied until the pyridine-2,3-dicarboxylic acid esters have been formed. Pyridine-2,3-dicarboxylic acid esters of this type can be used for example, as intermediates for synthesis of herbicides based on imidazoline. The present invention also relates to novel 2-amino-3-halomaleic acid esters, which are useful for producing the final product pyyridine-2,3-dicarboxylic acid esters.

Abstract: The incremental system for measuring lengths comprises a scale member that is provided with a measuring scale and is accommodated in a tubular projective housing, on which the scale member is held at one side edge of the scale member. A scanning unit is guided on the scale member to be movable parallel to the longitudinal direction of the scale member and comprises a light source for illuminating photoelectric receivers with light which is transmitted by a condenser, scanning gratings, the measuring scale and the scale member. A compact structure is obtained in that the scale member extends with an inclination of 45.degree. in the cavity of the carrying housing. The photoelectric receivers are provided on that side of the scale member which is opposite to a slot formed in the housing. The cone of light emitted by the light source is deflected by a reflector disposed between the light source and the condenser.

Abstract: Process for fitting partititon walls or ceilings to openings in building shells, forming fireproof sections, using fireproofing cushions (12), removable from the openings. Said process is characterized by the fact that square or cuboid fireproofing cushions (12) are used, and are fitted into the relavent opening (11) in the wall or ceiling of the building shell during construction.

Abstract: Apparatus and method for comparing a test handwriting signature with a reference signature where each of the test and reference signatures have been acquired by generating three electrical digital position signals characterizing a trajectory of a handwriting signature. The apparatus comprises a device for calculating variations of simple dynamic parameters of the test signature with respect to the simple dynamic parameters of the reference signature, by calculating a first evaluating function C1; a device for comparing C1 with a first threshold value, and rejecting said test signature if C1 passes the first threshold value; a device for calculating local intrinsic correlations of V.sub..sigma. and V.sub..theta.

Abstract: A mobile electric flash-butt welding unit for welding together adjacent ends of track rail sections comprises a pair of welding heads displaceable in a longitudinal direction towards each other, each welding head comprising two tong-like parts pivotal towards each other and carrying clamping electrodes for engaging the sides of a respective one of the rail section ends. Actuating cylinders extend in the longitudinal direction and are connected to each welding head for pressing the welding heads in the longitudinal direction towards each other, and clamps are connected to each welding head and are spaced in the longitudinal direction from the actuating cylinders connected thereto, each clamp comprising jaws for gripping the sides of the respective rail section end therebetween.

Abstract: A tear tape opening system is provided for establishing an opening in a package or carton formed of corrugated board wherein the corrugated board consists of an outside liner, an inside liner and a corrugating medium thereinbetween, wherein the outside liner has outside and inside surfaces and the inside liner has outside and inside surfaces, and the inside surfaces of the outside and inside liners face the corrugating medium. The tear tape opening system according to the present invention includes a hot melt coated tear tape adhered to the outside surface of the inside liner along the desired line of opening and a hot melt coated tear guide tape, at least as wide as the tear tape, adhered to the inside surface of the outside liner along the desired line of opening so as to guide the tear formed by the tear tape and reinforce and stabilize at least one edge of the tear along the outside surface of the outside liner.

Abstract: A mobile ballast plow comprises a machine frame and a ballast planing plow vertically adjustably mounted on the machine frame and extending from shoulder to shoulder. The ballast planing plow includes central plow elements extending over the center track portion, and a ballast conveying device associated with the central plow elements and arranged in the center track portion. The ballast conveying device consists of at least one vertically adjustable broom rotatable about an axis extending in the direction of the track, the broom having radially extending flexible ballast sweeping elements, and respective drives for vertically adjusting and rotating the broom.

Abstract: There is provided a self-propelled conveyor for use in mining operations having an endless revolving conveyor strand driven in its longitudinal direction by intermediate drives and guided on a conveyor frame which consists of segments multi-directionally pivotally connected to one another along the central longitudinal axis of the conveyor. The conveyor frame has downwardly extendible support elements which, for the conveying operation, lift the conveyor strand reversing in the lower stringer from the ground when the support elements are extended. For the transporting operation, the support elements are retracted so as to permit the strand to lie on the ground. Between the segments of the conveyor frame disposed in the front region of the conveyor there are steering cylinders by means of which the angle between these segments can be adjusted so as to direct the longitudinal direction of the conveyor.

Abstract: A system for mounting a series of decorative panels onto the outer surface of a building includes four basic elements, a baseplate, a cover plate and two panel edge brackets. The baseplate has a generally centrally-disposed wall portion securable to the outer surface of a building and the cover plate is mountable on the baseplate to cover the centrally-disposed portion. The cover plate has an outer surface which defines a base wall of a caulkless joint. Each of the panel edge brackets has a panel wall securable to an edge of a decorative panel. Male-female locking elements are associated with the base and cover plates for clamping the panel edge brackets to either the baseplate or the cover plate so that the panel walls of the panel edge brackets are generally normally disposed to, and abut, the outer surface of the cover plate. As a result, the panel walls define the joint sidewalls of the caulkless joint.

Abstract: A mobile ballast receiving and distributing machine comprises a machine frame supported on a railroad track by undercarriages for mobility in an operating direction, a ballast conveying device arranged on the machine frame to receive ballast and to convey the received ballast to a discharge end of the device, and a power-driven ballast storage silo arranged on the machine frame to receive the conveyed ballast from the discharge end of the ballast conveying device. The silo has a ballast discharge opening and a ballast conveyor band extending in the direction of the longitudinal extension of the machine frame and forming a bottom support for the ballast received from the ballast conveying device discharge end, the ballast conveyor band having an end discharging the ballast into the ballast discharge opening.

Abstract: A slicing machine for slicing pieces of meat or fish, especially sides of lox, which has a cutting station and a transport device which guides the material to be cut through the cutting station. The transport device includes movable track segments and fixed track segments. The movable track segments are formed as carriers for the material to be cut, which can be moved in increments, relative to the fixed track segments, by means of a drive device. The drive device includes vertical drive elements and horizontal drive elements. Each track segment is a strip that extends across the length of the track element.

Abstract: A longitudinally-extending constant speed decline belt conveyor for conveying a load along a downwardly sloped planar surface thereon. An endless traction belt rotatable about terminal rollers at the ends thereof, has an upper run extending in the longitudinal direction along the entire length of the conveyor. At least one of the terminal rollers of the endless traction belt is a speed control or braking roller for applying a braking force to the traction belt. The braking roller retards the rotation of the endless belt thereby retarding the movement of the load along the conveyor. A traction belt is utilized for braking so that the loads on the belt may have a uniform braking action applied thereto continuously as the loads move downwardly along the conveyor.

Abstract: A ceramic material made of a skeleton reaction-bonded silicon powder is distinguished by an open-cell pore structure produced by using a matrix of an appropriately shaped polyurethane foam structure. For the preparation, a foam matrix is coated with a suspension of silicon powder, synthetic resin and solvent and is subjected to a heat treatment, during which the foam matrix is expelled and the silicon is stabilized. The thermally and chemically stable product can be used, for example, as a filter medium for metal melts, as a catalyst carrier, or as a boundary medium between the flame zone and unignited combustible mixtures in burners.

Abstract: A wall or window element and/or wall element beneath the window is provided having an insulation layer disposed between two panels. The insulation layer is formed of a material which reduces convective heat transfer and thermal radiation. The insulation layer and the panels are permeable by the solar radiation spectrum, and the external panel which bounds the insulation layer on the side of the solar radiation is an absorptive pane which has a maximally high absorptivity for the non-visible portion of the solar radiation spectrum.