Abstract: A displacement and/or actuating force drive device for an injection molding machine, for example, for actuation of the push-type screw of a plasticizing extruder or the closing unit of an injection mold, comprises generally a hydraulic stroke drive, in tandem in rows or in series with a mechanical stroke spindle system driven by a brushless three-phase servomotor type electromotor. The motor is associated with a positioning regulation device dependent upon the closing and opening position of the injection mold. The hydraulic stroke drive can be actuated from a pressure regulation circuit by a servo valve. The circuit depends upon the closing force between the two mold halves of the injection mold.

Abstract: An apparatus for manufacturing a tube-like preform having a longitudinal wall with a variable cross-section for blow molding of a hollow body from a thermoplastic material, includes a tubular die having a variable exit opening, and a collar die having a recess and movable into engagement with and away from the tubular die, the preform being produced by ejecting of the thermoplastic material from the exit opening of the tubular die into the recess of the collar die while moving tubular die, with controlling a speed of movement of the collar die and a cross-section of the exit opening of the tubular die in such a manner that larger and smaller cross-section of the exit opening correspond to speed rate of the collar die, so that a thickness of the wall of the producible preform changes from peaks to valleys in a wave-like manner to form the variable cross-section of the wall.

Abstract: Multilayer adhesive label which is shrinkable on a circumferential surface of a body, particularly of a dry-cell battery, including a carrier layer for an outwardly visible imprint which is covered with a transparent protective layer, whose outermost layer is formed by means of an at least axially stretched, transparent laminated foil of shrinkable plastics material. The carrier layer may have at least one cut in the vicinity of its edge extending along the generating line of the circumferential surface of the body.

Abstract: An item of furniture is described wherein, in order to economize on space, rotating and/or sliding doors are used for closing items of furniture, particularly cabinets. The cabinets comprise a shaft opposite the opening side of the body, which shaft is supported vertically relative to the sliding direction and is provided with at least two toothed pinions which are arranged at a distance from one another and engage in corresponding toothed racks which are securely connected with the door. These toothed racks are supported at the shaft so as to be displaceable transversely relative to its longitudinal axis. To obtain an especially advantageous guidance for the door, the rails, provided with the rows of teeth, are constructed, at least at their opposite longitudinal edges, as guide rails for rollers of running carriages which are fixedly connected with the shaft.

Abstract: A implant is disclosed particularly for jawbone, comprising a diaphragm and a carrier having an elongated column-like central portion and a frame supporting the central portion, as well as spikes for anchoring the carrier into the jawbone. An intermediate piece for fastening the diaphragm at the end of the central portion are also disclosed. The implant facilitates favorable conditions for growth of the bone tissue so that bone material grows into a space covered by the diaphragm due to the solid anchoring of the implant into the jawbone.

Abstract: In the heat treatment in the field of a thermite weld between rail ends, the rail ends and the weld are enclosed within a containment filled with an aluminothermic material mixture. The mixture is ignited and the rail ends and the thermite weld are heat-treated for a given period. After the given period, the aluminothermic reaction products and the containment are removed, and an air quench unit is placed about the weld and rail ends and compressed air is directed at the weld and rail ends for a given time period. After the removal of the air quench unit, the weld is allowed to cool to ambient temperature.

Abstract: An arrangement for transferring castable material without pipes or conduits from a feeding point to a destination, particularly in underground mining. The arrangement includes a driven centrifugal wheel with blades. The centrifugal wheel is radially open and is surrounded in the manner of a jacket by an endless housing belt which is guided on guide rollers. The portion of the centrifugal wheel which is radially open is bordered by the guide roller which causes the housing belt to contact the centrifugal wheel and by the guide roller which raises the housing belt from the centrifugal wheel. The material is radially discharged in a concentrated manner through this radially open portion. The material is supplied axially to the centrifugal wheel through a feed tube and enters through a discharge opening of the feed tube on the vertical level of the blades into the centrifugal wheel.

Abstract: A link chain, in particular a flyer chain, comprising plate-like chain links joined together by means of link pins has protective surfaces of non-metallic covers extending over the width of the outer surface of the chain links.

Abstract: In a treatment or processing or sewage sludge in the sense of recycling, where the sewage sludge is to begin with dried (T), subsequently converted (K) under anaerobic conditions at approximately 250.degree. to 350.degree. C. and finally is sintered at at least 1250.degree. C. in successive steps, it is proposed to perform all process steps including the conveyance of the commodity to be processed between the individual processing steps successively in continuous passage in a closed system. Only the vapors are removed in this system in the drying stage (T) and the conversion gases in the conversion stage (K) and they are condensed; the heat quantity contained in the flue gas generated during the sintering process (S) is utilized for heating to begin with the conversion stage (K) and after that the drying stage (T).

Abstract: An apparatus for end face welding of plastic parts that includes two spaces clamping devices for retaining the plastic parts, a heating device movable into an operative position between the clamping devices, and a stop element for retaining the heating device in its operating position, and in which the stop element is automatically disengaged from the heating device upon a return movement of a carriage supporting one of the clamping devices after heating of the ends of the parts to enable automatic return of the heating device to its initial position.

Abstract: A method for the production of electrically conductive tin-IV-oxide of fine particle size is disclosed. Pursuant to the method, tin oxide and/or tin oxide hydrate is precipitated on a dihydroxy-tin-dichloride solution containing fluoride ions as doping agents. The precipitation is accomplished by adding alkali metal hydroxide, ammonium hydroxide, alkali metal carbonate or ammonium carbonate and the tin oxide and/or tin oxide hydrate is separated from the aqueous medium. The separated product is then calcined. The invention also discloses the use of the fluoride-doped tin-IV-oxide by adding it to the various vehicles.

Abstract: A syringe-type injection device for dispensing a preset dose of a liquid drug includes two sleeve-like components releasably connected with each other so as to be aligned in axial direction. One of the sleeve-like components is a holder for a dispensing mechanism and the other of the sleeve-like components is adapted to accommodate an ampoule and a cannula. The dispensing mechanism includes an axially movable piston rod for actuating a plug of the ampoule. The piston rod has a radially projecting cam follower and the holder defines at least one axially extending slot having a predetermined length, wherein the cam follower is received by the at least one slot, such that only a single dose can be dispensed from an ampoule by an axial movement of the piston rod.

Abstract: In order to change defective buoys on the net line of a fishing net and to change the spacing between the buoys threaded onto the net line, it has hitherto been necessary to release the net line from the net and to re-secure it to the net after re-arranging the buoys, thus to re-tie it. This is a very time-consuming task, which can now be avoided by use of the novel buoy. This novel buoy consists of two identical portions, thus of two halves, which engage against the net line and which can be assembled together effortlessly at the desired location for the complete buoy. To connect the halves, a clamping member disposed to surround the barrel-shaped buoy in a groove can be used.

Abstract: A recording and/or reproducing apparatus arranged to detect whether a second information is recording or not, by using a first detection signal indicating a result of detection concerning whether no signal is recorded or any signal is recorded, and the second detection signal indicating the result of detection concerning whether the first information signal is recorded or not, in a case where the first or second information is recorded on the recording medium where no signal is recorded thereon, and where it cannot be detected whether the second information signal is recorded or not.

Abstract: A ram boring machine having a striking piston that is axially displaceable in a housing, of which the forward and backward movement is controlled by a control sleeve connected to a supply hose and which engages in a cylinder chamber of the striking piston, and by one or more corresponding control openings in the striking piston, wherein the control sleeve is loaded both axially and torsionally, has axial and rotational stops and is rotatable and axially displaceable in a guide sleeve arranged at the rear end of the housing.

Abstract: A double floor for removing air from rooms, particularly clean rooms, which are connected to the air supply system of a ventilating and/or air-conditioning unit. The double floor has an upper floor plane formed by perforated plates. The perforated plates are supported by support members. On the underside of the perforated plates is provided a stiffening system composed of stiffening members. Cover members are provided on portions of the stiffening system facing away from the perforated plates. The cover members form at least in the regions of the edges of the stiffening members nozzle openings which project beyond the lower plane of the stiffening system. All the nozzle openings open in the same direction.

Abstract: The invention discloses a fuselage which is subdivided into a fuselage lower part (1) and a shell-shaped upper fuselage portion (3) where the upper fuselage portion (3) is provided with windows arranged in rows (12, 13), the windows being formed by inserted pieces (8) with the fuselage moulded around them, the windows being formed on an integral insert part (7). It is desirable that, on the one hand, the upper fuselage portion including the injection-moulded window pieces be of simpler construction and, on the other hand, should have a continuous external fuselage surface extending continuously without any conspicuous joint line down to the joint with the fuselage lower part.

Abstract: A mixture of three kinds of bacteria is disclosed which is useful for humans and animals. The symbiotic mixture contains as effective ingredients lactic acid producing bacteria, saccarificating bacteria, and butyric acid producing bacteria which are useful for human and animals. A method is disclosed for effectively cultivating a symbiotic mixture of these three kinds of bacteria by a cooperative action.

Abstract: In a process for cold forming unalloyed titanium high strength and ductility, in particular high bendability, are obtained if the material is subjected to intermediate annealing at a temperature of up to 500.degree. C.

Abstract: An appratus for treating medium consistency pulp in connection with different treatment apparatuses, such as washers. According to the prior art the treatment of pulp, for example, the washing process, starts at a low consistency, approximately 1-3% so that it is necessary always to dilute pulp before washing, whereby the water consumption of the plant increases and the need of power in, for example, pumping and in the treatment generally increases. The present invention makes it possible to treat medium consistency pulp, because the feeding means is able to spread the pulp as an even layer on the perforated surface of the treating apparatus.