Abstract: A cylinder head and combustion chamber sealing arrangement that is subdivided into a sealing element in the cylinder liner region (especially for sealing gas) and a sealing element in the cylinder block region. Both sealing elements are made of solid metal. The sealing element for gas sealing, which is disposed in the liner-collar recess, is stressed in a certain range beyond the yield limit of the material by tightening the cylinder head screws. To improve the gas sealing, on the one hand a circumferential groove is provided in the cylinder head opposite the recess in the cylinder liner collar, and on the other hand the recess itself is provided with either a circumferential groove or a circumferential rib. By this means, the liner sealing element is stressed beyond the material yield level in the specific region of its outer and inner perimeters.

Abstract: A fan assembly that includes an impeller driven by an electric motor. The housing for the impeller has an air intake opening and a pressure-side connection for the discharge of air, with the pressure-side connection being provided with an air inlet opening that communicates with an air conduit that in turn leads to the electric motor housing. Air that flows through the air conduit is supplied at least to the region of the commutator of the electric motor. The electric motor housing is provided with an air outlet opening for receiving air that has been supplied to the electric motor housing via the air conduit, with this air outlet opening being in flow communication with an underpressure region of the impeller remote from the pressure-side connection of the impeller housing.

Abstract: An eyeglass frame, especially for sport glasses, including a central portion for accommodating the lenses, as well as temple pieces that can be detached from the central portion. Each temple piece can be inserted through a hole or slot that is provided in each side region of the central portion. One end of each temple piece is provided with a widened portion that is adapted to come to rest against the central portion in the vicinity of a given hole or slot thereof. The entire length of each temple piece is adapted to be guided through a given hole or slot.

Abstract: An apparatus for vulcanizing pneumatic vehicle tires where the tire beads, in the mounted state, are disposed on the radially inner periphery of a rim next to the essentially radially inwardly extending rim flanges. In order to obtain tires having a long service life and tire beads with a good sealing quality, it is proposed that the tire be vulcanized in essentially the proper contour for operation. Two, respectively radially segmented, bead-forming rings that have a variable diameter and can be displaced axially are provided. For the purpose of vulcanizing the sealing surfaces disposed in the interior of the tire so that these surfaces will rest on the rim in an airtight manner, the bead-forming rings are introduced, in a radially retracted state, into the interior of the tire blank, whereby at least one of the tire beads is ovally deformed.

Abstract: A container for confining hydrocarbon spills and the like is comprised of a plurality of portable concrete wall panels which can be hingedly connected to one another by connector members.

Abstract: A numerically controlled machine for processing printed circuit boards, including a workpiece holder and at least one operating unit that includes a motor arbor with an exchangeable tool, and a feed mechanism with a drive motor, a control mechanism, and a first movement-measuring system. For each operating unit, there is provided a respective second movement-measuring system that is disposed thereon, and a respective reference measuring point on the workpiece holder, with the aid of which there can be measured a distance between a tip of the tool and an abutment surface of the operating unit that rests upon a workpiece during a processing operation. Prescribed drilling depths are correctable in the control mechanism of the feed mechanism via the measured distance value. This compensation of respective tolerance values is effected independently for each operating unit.

Abstract: A narrow vent for aerating windshields of tractors, work machines, etc. The vent has a plurality of fins that spread the air stream that is directed onto a window in a fan-like manner. A portion of the fins, as side fins, are directed onto a region adjacent the vent, and the other portion of the fins, as main fins, are directed onto a region just ahead of the vent, with the angle provided by the fins corresponding approximately to a quarter circle. The air-exit plane provided by the vent extends at most insignificantly beyond the vehicle body part in which the vent is installed. All of the fins are partially recessed in the vent. The side fins are longer, and the outermost side fin is considerably longer, than the main fins.

Abstract: A transfer bridge that is pivotably mounted on a dock. The free end of the bridge plate is provided with an extension that can be retracted and extended. One or more tongues are displaceably supported by the extension. A pressure member provides a frictional force that holds the tongues against the extension and that must be overcome when the tongues are pushed in and when the tongues encounter a stop member of the bridge plate.

Abstract: An apparatus, for a motor vehicle having a liquid-cooled engine, for heating windshield washer liquid or the like. The apparatus includes a cylindrical heat-exchanger housing that, via hose connectors that are disposed at both ends of the housing, can be disposed directly in the coolant line between the engine and a radiator, with the interior of the housing, through which the coolant flows, containing a tube coil that is helically wound in the longitudinal direction of the housing. Liquid that is to be heated flows through the tube coil, and the ends of the latter are conveyed out of the housing in a radial direction. The housing is divided, in an axial direction, into two semicylindrical shells which have abutting longitudinal edges that can be sealingly interconnected.

Abstract: A triangular piston is journalled rotating in a planetary manner upon an eccentric of an eccentric shaft journalled in a housing of a rotary piston internal combustion engine of trochoidal type of construction with a fluid cooled system in the housing with a multi-arcuate casing runway surfacing of which the side walls have the eccentric shaft passing therethrough. An eccentric bearing is cooled directly by a cooling medium conveyed via a bypass of the cooling system of the housing branched off from the cooling system and the cooling medium is conveyed via hollow spaces in the eccentric shaft into a location at the eccentric journalling the triangular piston. The cooling medium is supplied and carried away via lines opening into an annular groove extending around the eccentric in a location below and radially inwardly of the eccentric bearing.

Abstract: A vehicle wheel for pneumatic tires. The rim of the wheel has radially inwardly extending rim flanges, and adjacent thereto, along the inner periphery, has seats inclined in cross section for a belted tire, and adjacent thereto, has recessed portions. The recessed portions adjoining the seats extend at least partially inclined in cross section. The angle of inclination of the recessed portions with respect to the axial direction is equal to or greater than the corresponding inclination angle of the seats. The recessed portions, in the axial direction, have a dimension which is equal to or greater than that of the axial segments of the seats.

Abstract: A method and apparatus for producing a coal/water mixture for combustion in a fluidized bed unit. To produce a hydraulically transportable coal/water mixture, crushed raw coal is preliminarily mixed with water in a first stage. This mixture is final mixed in a second mixing stage. The fine grain-size fraction required for the hydraulic transport is generated in the first mixing stage. The viscosity of the mixture present in the second mixing stage is determined, and as a function thereof additional water is added to the mixture in the second mixing stage, and/or the mixing process in the first mixing stage is altered in order to alter the fine grain-size fraction.

Abstract: A device for the application of dynamic forces on, and/or for simulation of movements by, a training person that is using the device. Disposed on a base plate are at least three spaced-apart deflecting elements that accommodate and guide an elastic band.

Abstract: An adapter element that allows machine elements to be accommodated in a centered manner with zero play, with these machine elements having different thermal expansions over broad temperature ranges. The adapter element has a sleeve-like portion that has tongue-like regions defined therefrom. Flattened or planar regions are provided on the inner and/or outer surface of the sleeve-like portion, with these planar regions at least partially overlapping the tongue-like regions.

Abstract: A device for aerating water, and including a rigid, essentially planar support member, and thereupon a plate of elastomeric material that is provided with fine slits for the release of air. The underside of the support member is provided with one or more connectors for supplying air between the support member and the plate. The rim of the plate is pressed in an airtight manner from above against the support member by a profiled annular frame that is secured by screws to the support member. The frame has a flat portion via which it rests against the plate, and also has an annular reinforcing rib that is directed upwardly away from the plate, so that the frame has an L-shaped or T-shaped cross-sectional shape. The frame also has an outer peripheral portion for receiving fastening screws.

Abstract: A method and apparatus for continuously forming a uniform layer of material that is being dispersed. This material, in the form of a stream of material, is deposited on an intermediate conveyer belt, as strips, transverse to the direction in which the material is fed to a dispersal mechanism. In the direction of travel of this intermediate conveyer belt, the strips abut one another in such a way that no gaps exist between them.

Abstract: A gap seal formed between surfaces cooperating with each other such that operation free of engagement between the cooperating rotor and housing parts with respect to each other at relative speeds occurs subject to a roughened light-metal surface of one part cooperating with a covering of foamed synthetic material on the other part so as to assure gap seal therebetween rather than having any metal-to-metal and/or foamed-material to foamed-material interengagement. The foamed synthetic material covering of a surface preferably is made of polyurethane and the light-metal surface is made of aluminum roughened by sandblasting or etching. The lightweight metal part can have cavities and recess spaces therein to be filled with foamed material as well as other fins, ribs, and anchoring provision for holding the foamed synthetic material bodies in place.

Abstract: A method and apparatus for receiving a tire, especially for checking the concentricity of a pneumatic vehicle tire that during operation has its bead portions mounted on the radially inner periphery of a wheel rim. A test rim is provided that comprises two axially movable rim ring sections that in turn are provided with pivotable rim flange segments toward which cooperating parts are axially movable from beyond the tire. The bead zones of the trapezoidally mounted tire are engaged by the cooperating parts and are brought into the rim-setting position. The pivotable rim flange segments are swung radially inwardly, so that the bead portions are held between the cooperating parts and the rim ring sections. The bead seat is sealed by sealing lips.

Abstract: A curling stone that includes a handle that is interchangeably connected to a carrying disk that is inserted in a stone body. Two or more securing elements are mounted on the handle to effect detachable connection of the latter to the carrying disk. The securing elements are positively radially pivotably mounted on the handle, with each securing element having a portion that faces the carrying disk and that can be secured in a recessed area of the latter.