Abstract: A tubular heat exchanger for operation at high gas temperatures and high jacket pressures include tube sheets which are exposed to high loads so that both sheets are kept thin and tie rods bracing the tube sheets are arranged on at least every other graduated circle of a plurality of graduated circles or tubes and tie rods. The heat exchanger tubes arranged between the tube sheets have a helical shape in an intermediate or central region. The heat exchanger design can be used, for example, as a cracked gas cooler.

Abstract: A shock absorber adapted to be mounted between a body and a wheel shaft in a vehicle such as a car or a motorcycle for reducing shocks and vibrations derived from a road. The shock absorber includes a sub-cylinder mounted in a cylinder at one end thereof, a rebound cushion mounted in the sub-cylinder at one end thereof, and an oil-lock piston mounted on a piston rod of the cylinder in confronting relation to the interior of the sub-cylinder. As the piston approaches the end of the expanding stroke, the oil-lock piston is fitted in the sub-cylinder, at which time oil in the sub-cylinder is compressed and then flows into an oil chamber below the oil-lock piston via an annular gap around a periphery of the oil-lock piston and a small-diameter hole in the oil-lock piston. Due to the flow resistance of the small-diameter hole, an oil-lock load can be obtained.

Abstract: A process for producing a filter with multiple folds from an aqueous fiber mixture that is applied to a porous form, in which a paper-like filter mat is produced on the form under the action of pressure, and it is carried out without mechanical deformation of the rough casting. This is achieved pursuant to the invention by the fact that the aqueous fiber mixture is deposited on the porous form having the contour of the filter, from loading chambers separate from one another, and the filter is built up of adjacent fold sections in layers on the form by separate introduction of the fiber mixture to the fold sections connected to one another.

Abstract: A miniature motor having a motor case comprising a motor housing, fitted with a permanent magnet field and having an opening at one end thereof; an insulating brush base, made of a synthetic resin, fitted to the opening of the motor housing for holding brushgear; and a cover plate, made of a metallic member, covering the surface of the insulating brush base; the motor housing having a plurality of crimping pieces formed by notching the edge of the motor housing opening; the cover plate being fitted to the motor housing by engaging the cover plate with the motor housing opening, and bending and crimping the crimping pieces, characterized in that the cover plate has along the outer periphery thereof a plurality of recesses, which are concave toward the motor shaft, and the recesses are crimped by means of the crimping pieces so as to fixedly fit the cover plate to the motor housing.

Abstract: Part of the synthesis gas produced by coal gasification in an allothermically heated fluidized bed reactor is burned after removal of dust and sulfur and serves as a source of energy to heat the reactor by indirect heat exchange and to produce the steam required for the gasification process. The flue gas exiting from the heat exchanger of the reactor can be used to perform work in expansion turbines. The rest of the synthesis gas is available for use in downstream processes, such as iron ore reduction, or can be burned and used to perform work in turbines to produce electric current. The result is a process that is environmentally safer and operates with a better yield than direct coal burning or autothermal coal gasification, but requires no outside source of energy, such as nuclear power, as prior art allothermal coal gasification processes do.

Abstract: An atmospheric gas boiler has two vertically arranged end pieces and at least one middle piece arranged between them, as well as burner lances disposed in the lower part of the gas boiler. The pieces of the boiler through which hot water flows define a furnace, with secondary heating surfaces adjoining thereto. In order to lower the quantity of NOX arising during the combustion, the middle piece has a tongue through which hot water flows, extending into the furnace. The tongue possesses cooling ribs on the outside, which extend into the adjoining furnace spaces.

Abstract: Windshields are automatically mounted on automobiles on the assembly-line by advancing a gripping device carrying the windshield and associated position sensors relatively towards the automobile, moving the sensors over a windshield opening in the automobile body shell and across edges of the shell defining such opening to provide signals indicating the position of such edges. Such measurements take place firstly on a gross scale and subsequently on a fine scale along at least four axes during the mounting process. The gross position of the windshield opening is first detected using the gross sensors. Starting from a reference point determined in the course of the gross measurement, a gripping device is then moved towards the upper edge of the windshield opening until a first of two fine sensors moves across such upper edge when the gripping device is pivoted around the detected point until the second fine sensor also moves across the upper edge.

Abstract: The invention relates to a distribution bank for communication cables in particular a house incoming distribution bank. The distribution bank includes several plug accommodation sections formed each by four conductor plug sockets, one earth plug socket, connecting elements and plug sockets and being provided with test portions for test plugs. In order to obtain a simple electrical connection between the plug accommodation sections, the connecting elements and the test positions, the plug accommodation sections, the plug sockets and the connecting elements are arranged in parallel rows. A row of the plug accommodation sections is arranged centrally, and one row each of test plug sockets and connecting elements are arranged on both sides of the central row of plug accommodation sections. Connecting plates extend to the parallel rows and are plugged into the distribution bank.

Abstract: Thermochromic particle-containing linear material product produced by the process characterized by dipping a core in the form of a monofilament or multifilament into a vinyl chloride resin sol composition having a thermochromic particulate material incorporated therein, the thermochromic particulate material being prepared by enclosing with a high polymer compound an electron-donating chromogenic substance, an electron-accepting substance for the chromogenic substance and a solvent having a boiling point of at least 150.degree. C. and selected from the group consisting of alcohols, amides, esters and azomethines and further covering the resulting product with a different high polymer compound; withdrawing the core from the sol composition; and heating the core to gel the sol composition and cover the core with the gelled composition.

Abstract: A brushless generator having a rotor for generating a magnetic field, a stator having magnetic poles facing the rotor a main generating winding; and a voltage is induced as the magnetic field generated in the rotor intersects the main generating winding, in which slots are provided at the locations of the stator magnetic poles facing the rotor, exciting windings are wound on the slots to generate in the exciting windings voltages having different phases with respect to that of the voltage generated in the main generating winding, and brushes are eliminated by using the voltages generated in the exciting windings.

Abstract: The invention relates to a hypodermic syringe in which a hollow needle is surrounded by a protective sheathing in such a way that after the injection has been performed the protective sheathing encloses the tip of the hollow needle to provide protection.

Abstract: A wearable, air-sampling device includes a head frame comparable to an eyeglass head frame which has a forehead engaging cross piece and an ear-engaging piece on each side extending rearwardly from the forehead engaging portion which are adapted to engage over respective ears of the wearer and which includes a detachable gas-tester holder mounted on the frame at some visible location, for example, between the eye portions of the forehead piece or over each eye of even on a temple piece.

Abstract: This reinforcement is formed by a basic pattern constituted by fifteen woof threads R in a staggered arrangement forming six vertical columns 1 to 6 of alternately two and three threads and at least five horizontal lines 1 to 5 each of three threads, and by six imbricated layers C1 to C6 of at least two parallel threads, namely at least twelve threads a, b, c . . . 1, each connecting every third woof thread of the same column in two adjacent lines and the warp threads of the consecutive layers connecting the woof threads in alternating columns.

Abstract: A sewing machine is provided with a upper and a lower feed device with which a workpiece consisting of several plies can, when making arched and/or corner type seams, be transported in always constant position of orientation without mutual displacement of the plies. For this purpose the feed direction of both feed devices can be varied either by changing their direction of action or by geometric addition of at least two motion components.

Abstract: The invention relates to a connecting piece for connecting tubular members such as hoses, pipes, or other structural parts, carrying fluids with each other. A clamping part is available which has two half shell-shaped clamping halves with one clamping surface curved in accordance with the outer circumference of the end of the tubular member to be inserted. In their plug-in position the clamping halves are arranged at a distance to each other which permits insertion of the plug-in end of a tubular member. In their clamping position they enclose non-displaceably the plug-in end of the pipe, the hose or similar and they are simultaneously fixed on a contact part of the connecting piece.

Abstract: An internal combustion engine includes a fuel activation chamber disposed near a main combustion chamber and a valve disposed between the fuel activation chamber and the main combustion chamber to open and close therebetween. The valve is opened by movement of a valve body thereof to the fuel activation chamber side.

Abstract: In a method for the production and packaging of a continuous strip of small bags each formed with two longitudinal folds and with transverse welds and transverse pre-incisions, the continuous manufacture is longitudinally folded after the formation of the welds and the pre-incisions defining adjacent single small bags, is die-cut to form the handles and then is wound up as a reel.

Abstract: The invention relates to a terminal strip or blocks in telecommunications, comprising a support plate with terminal elements for conductors to be plugged thereon and of a strip-like upper part to be snapped onto the support plate to create a relatively long terminal block without risk of addition of tolerance errors. The upper part is formed by several partial blocks, and the support plate has several receiving chambers arranged one behind the other for the partial blocks.

Abstract: There is involved a method for monitoring and possibly repair leakages in dumps with at least one lower seal inclined toward a control gallery, the lower seal being divided into leakage troughs and the leakage troughs being connected to control openings leading into the control galleries. If seepage water emerges from at least one control opening, an inspection pipe integrated in profiles or webs of a profile foil forming the leakage troughs is probed to locate the leak. Below the lower seal a control pipe is driven into the localized leakage area, so that also the tightness of the lower seal can be examined, and, depending on the testing of the seepage water, repair of the upper seal is either carried out immediately or is postponed. Immediate repair is necessary if the leak is already in the lower seal.

Abstract: An apparatus for enriching respiratory gas with oxygen, wherein the entire enriched respiratory gas can be taken from an absorber bed and the enrichment concentration is adjustable by action on the total flow through the adsorber and the portion of the total flow in excess of the consumer flow is removable via an outflow, is improved so that adjustment of enrichment concentration and consumer flow independently of each other is possible and the enrichment concentration is maintained also at fluctuating consumer flow. To this end a control circuit for the stabilization of the set enrichment concentration is provided, to which is connected a control section for the adjustment of the consumer flow, and an outflow being is arranged at the junction between the control circuit and the control section.