baber/WOPTO huggingface dataset:
Patent DE-3005889-A1 (DE)
Title: Emulsion polymerisation with prepolymer contg. azo gps. - as catalyst and emulsifier, giving stable emulsion in water or organic solvent
Inventor: HEITZ WALTER DIPL CHEM DR
IPC: C08F4/04
Filed: 1980-02-16
Abstract: In emulsion polymerisation of ethylenically unsatd. monomers, 0.1-50 pts. wt., w.r.t. 100 pts. wt. of monomer, of a polymer of formula (I) (P(C(CH3)2COO-R-OCO-C(CH3)2-N:N)n)m (I) (where n = 1-100; m = 1-10000; R is not more than 36C (cyclo)-aliphatic or aromatic residue, opt. contg. hetero- atoms such as O, or is a polyether; and P' is a polymer block from an ethylenically unsatd. monomer) is used as both catalyst and emulsifier. Unsatd. monomers which can be (co)polymerised in emulsion by means of (I) include vinyl acetate, acrylonitrile, styrene, methyl methacrylate, ethyl acrylate, acrylamide, N-vinyl- pyrrolidone and butadiene. P' must be sol. in the emulsifying liq. If polymerisation is in water, claimed P' are polyacrylamide, poly(meth)acrylic acid and polyvinylpyrrolidine. For polymerisation in an alcohol, P' may be poly-N-vinylpyrrolidone.
Patent DE-3010340-A1 (DE)
Title: Vacuum deposition system for thin film transistors - uses flash vaporisation by discharging tablets of coating material into heated cylinder
Inventor: FISCHER ALBRECHT G PROF DR
IPC: H01L21/34
Filed: 1980-03-18
Abstract: The vacuum deposition system for coating thin film transistors, uses a flash evaporation method. A reservoir formed by a rotating disc with pockets, dispenses small tablets of the coating material. Each travels in turn down a sloping chute to fall into a heated cylindrical tile, to be converted instantly into a vapour. This is discharged upwards inside the vacuum chamber for deposition on the substrate above, which carries a perforated mask. The inside surface of the vaporising tile can be of sintered corundum or of borium nitride. The tablets can be made of two different materials, delivered alternatively. The two materials are of respectively SiO2 rich and SiO2 poor mixtures of Al2O3 and SiO2.
Patent DE-3011202-A1 (DE)
Title: IC engine with exhaust gas recirculation - has recirculation restricted to full load operation, reaching max. 10 percent of exhaust gas
Inventor: GRUDEN DUSAN DIPL ING
IPC: F02B19/10
Filed: 1980-03-22
Abstract: An internal combustion engine operating with stratified charge has exhaust gas recirculated to reduce exhaust gas emission, as well as fuel consumption. A weak mixture is maintained in the main combustion chamber. Fuel injection gives a rich mixture in a connecting side combustion chamber. Under some operating condition current control methods result in emission and fuel consumption higher than values achieved without exhaust gas recirculation. The exhaust gas is recirculated only during full load operation, with a maximum exhaust gas recirculation of 10%.
Patent DE-3012372-A1 (DE)
Inventor: DIETZSCH HANS-JOACHIM
IPC: F24J2/04
Filed: 1980-03-29
Abstract: The invention relates to a non-focussing solar radiation collector with high efficiency at a high end temperature, which has at least one diaphragm (9) which consists of a rowed arrangement of elements, in particular lamellar pieces, and which is flowed through by a liquid (22) in a large number of individual flow regions. <IMAGE>
Patent DE-3014334-A1 (DE)
Title: Drilling machine with retractable bits allowing continuous operation - has stepping motor in compensating unit with conversion of motion
Inventor: HORSCH WILFRIED
IPC: B23B29/034
Filed: 1980-04-15
Abstract: A drilling machine has a control system allowing continuous operation. It consists of a drilling bit, which can be radially displaced on a drill rod. The latter is mounted in an eccentric hole in the driven spindle. The bit is adjusted radially by a compensating device. The drill rods (6) contain several drilling bits (9) with the same radial setting. They are displaced along the circumference. The deflection motion of the bits in the eccentric hole (5) can place them into the drilling position. The bits are operated sequentially and shifted into a starting position after each process. The compensating unit contains a step motor. The rotary motion is first converted into a linear motion and then back into a rotary motion.
Patent DE-3019328-A1 (DE)
Title: Coated double fabric for heat-exchanger elements - has coated spacer yarns for improved resistance to hydrolysis
Inventor: THIMM JUERGEN DR
IPC: D06N7/00
Filed: 1980-05-21
Abstract: In a multi-layer coating fabric, partic. for use in the mfr. of heat-exchanger elements, in which the layers are held together at a fixed separation by woven-in spacer yarns, the spacer yarns themselves, and possibly the yarns forming the fabric layers are covered with the impervious coating material, before the gas and liquid-tight coating is applied to the outer surfaces of the multiple fabric. The yarns are coated by immersion of the fabric in a bath of liq. coating material, removal of excess material and curing the retained material. The internal yarns are thereby fully protected against the fluids passing through the cavity between the fabric layers, the adhesion of the outer coating is improved and its resistance to the internal pressure is increased.
Patent DE-3022347-A1 (DE)
Title: Laminated miniature inductance on chip - has conductive path printed on ferrite layer substrate, whose surface protrudes on chip surface
Inventor: HOPPERT HANS DIPL-CHEM DR
IPC: H01F17/00
Filed: 1980-06-14
Abstract: Printed ferritic layers and conductive paths are alternately laminated in the miniature inductance such that the conductive paths form a spiral, whose turns are mutually insulated by the ferritic layers. Both ends of the spiral are conductively connected at two front sides of the chip to metallise coating sections. The conductive paths (4-7) are S-shaped and form the spiral in such manner, as to be projected onto the chip main surface as two adjacent closed loops. The first conductive path (2) printed on a base-forming ferrite layer (1), has a metal surface (21) as a protrusion on the front surface (8) of the chip. This conductive path is covered by a ferrite layer (3) with the exception of a window (31), in which is exposed the end section (22) of the conductive path (1). On the covering ferrite layer is printed an S-shaped conductive path (4), whose starting segment (42) covers precisely the end section of the path below.
Patent DE-3024791-A1 (DE)
Title: Poor subsoil treating appts. - has blender agitating shafts attached to cylinders equipped with setting agent feeding devices
Inventor: IKEDA KATSUZO
IPC: E02D3/12
Filed: 1980-06-30
Abstract: In an appts. for treating poor subsoil, a setting agent is stored in a working vessel (1) and a scaffold (3) is carried on the working vessel so that a blender (4) is suspended in a vertically movable manner. The blender has its agitating shafts (10) attached to supporting cylinders (9) and equipped at their lower portions with setting agent feeding devices for injecting the setting agent so that the poor subsoil and the setting agent may be blended. It is also subjected to the setting treatment by the actions of the blades which are attached to the agitating shafts. There are further carried on the working vessel a positioning surveying device, a scavenger of the poor soil in the supporting cylinders, and a circulating circuit of a setting agent feeding hose.
Patent DE-3027886-A1 (DE)
Title: IC engine exhaust afterburner air induction system - has ported-sphere rotary valve distributing exhaust gas to branches feeding inductors
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N3/26
Filed: 1980-07-23
Abstract: The IC engine exhaust afterburner air induction arrangement has the furthest downstream of several jet pipes fed from a header nearer the engine than that feeding the rest. A control device distributes the gas between the pipes. The control device comprises an outer hollow sphere (1) with at least one inlet (11) and two outlet (12,13) connections, housing a close-fitting inner (2) on a spindle (3) rotatable from outside. Openings in the inner sphere are so arranged that gas can enter it and, by rotating it, be directed into one or more outlets.
Patent DE-3035746-A1 (DE)
Title: Frost sheathed mine shaft sinking machine - is tracked mineral extracting loader with distant drive and remote control positions
IPC: E21D1/03
Filed: 1980-09-22
Abstract: In coal and potassium salt mining, a shaft to be sunk is surrounded by a cylindrical sheath of frozen ground. Sinking is carried out by means of a remote-controlled mineral-extracting and loading machine (3), with the drive position (7) and remote-control elements (6) separated from it. The machine can have an endless-track chassis (4), with one or two booms (11), on a rotatable tower (10), raised and lowered by piston-and-cylinder units (14). They have end swivelling shovels (15) with bottom striker appliances (16), while the tracked chassis has leads (5) connecting it to the drive position and control elements.
Patent DE-3037866-A1 (DE)
Title: Double jaw hydraulic grab - has jaw sidewalls joined by tube with slots for bearing arms
Inventor: KINSHOFER ALFRED ING GRAD
IPC: B66C3/02
Filed: 1980-10-07
Abstract: The double-jaw grab has a stirrup-shaped support with arms joined by a central cross-member, the jaws hinging on axes parallel to the latter. A hydraulic ram acts between the arms fixed to the jaws. The sidewalls (3,3') of the jaws are joined by a tube (8) near the top edge (4), and which has near its ends slot-shaped radial openings (10,10') extending part-way round the periphery. The ends of the T-section arms of the support, and which contain bearing bores, extend through these openings, and there are bores (14) in the sidewalls in line with these bores and with that of the tube, in which a bearing bolt for the jaw fits.
Patent DE-3040985-A1 (DE)
Title: Extruder for thermosets - has screw and extended by triangular section small radius ribs close to barrel wall
Inventor: BICHLER MARTIN
IPC: B29C45/60
Filed: 1980-10-31
Abstract: The end of an extruder screw for thermosetting plastics, between the nozzle end and the end of the thread, has at least one projecting section extending round at least part of its circumference; the polymer material passes through the gap between the equator of the projection(s) and the barrel wall. Produces highly consistent shots and therefore perfect mouldings but without modifying injection temp. or extending moulding cycles.
Patent DE-3043461-A1 (DE)
Title: Distance measuring system between train and station - uses phase shift between transmitted and response data telegrams
Inventor: LA FUENTE PEDRO DE DR ING
IPC: B61L3/12
Filed: 1980-11-18
Abstract: The system uses regularly spaced data telegrams. The train determines the clock time of the received data telegram and uses this to transmit a response telegram which is received by the station. The clock time of the response telegram is determined at the station to allow the phase shift relative to the transmission clock of the transmitted data telegrams to be measured. Pref. this phase shift is determined over several clock steps. The data telegram may incorporate one or more characters as the time markings.
Patent DE-3043600-A1 (DE)
Title: Two-level shopping trolley - has lower tray inclined upwards at rear and support bar across basket support legs to form shelf for bottle case
Inventor: EBERLEIN HERBERT ING GRAD
IPC: B62B3/18
Filed: 1980-11-19
Abstract: The supermarket trolley has a normal frame (2) carried on wheels (3) and is narrowed towards the front. On the frame base (4) is a carrier tray (18) on a hinge (20) at the front. The rear end (13) of the horizontal carrier tray is sloped upwards forming a rest for bottle cases. Fitted to the support legs is a rest bar across the frame on which the bottle case can rest. The rest bar can alternatively be fitted on supports on the carrier tray (18). The bottle cases can be carried and unloaded from the rear of the trolley without the user trapping the fingers between the case and the basket.
Patent DE-3101438-A1 (DE)
Title: Lifting and lowering device
Inventor: MENKENS HEIKO
IPC: B66F7/20
Filed: 1981-01-17
Abstract: Lifting and lowering device (1) with a control system (20) acting on actuators (2, 3). This control system (20), starting from level switches (17, 18) in end containers (7, 8) of a "tube balance" known per se, can be operated according to direction and actuating-force initiation in such a way that a desired position with horizontal connections of the reference points can be re-established automatically as soon as and as long as a change in the height difference (A/2) of the actuator points of application (5, 6) is effected from a normal position (S). The advantages lie primarily in a high accuracy even at large distances as well as in robust, rapidly responding and low-maintenance type of construction, which is simple to mount in a variety of ways and is suitable for underwater use and can be operated by remote control, if need be also as a synchronisation control means with vertically variable actuator systems.
Patent DE-3101748-A1 (DE)
Title: Process for the preparation of polyurethane systems
Inventor: SCHUSTER PETER DIPL CHEM
IPC: C08J9/00
Filed: 1981-01-21
Abstract: The invention relates to a process for the preparation of polyurethane systems, in particular homogeneous 2- or multicomponent systems with a long shelf life which cure rapidly, for the production of, in particular, rigid polyurethane foams of greatly reduced combustibility, which are suitable for the manufacture of lightweight multilayer elements. The object comprises the preparation of the suitable 2- or multicomponent system. The essence of the invention consists in that the polyol mixture has a hydroxyl content of at least 22 % and a nitrogen content of from 1.2 to 3.0 %, without including the flameproofing agent. The content of heteroatoms in the polymer structure of the rigid polyurethane foam must satisfy the relationship % of phosphorus and % of bromine/3 and % of chlorine/12 = 1.7, where the % of phosphorus is not zero.
Patent DE-3103296-A1 (DE)
Title: Circuit arrangement for stabilising the operating voltage for the keypad of a telephone terminal
Inventor: DROSSEL MICHAEL ING GRAD
IPC: H04M19/08
Filed: 1981-01-31
Abstract: To stabilise the operating voltage obtained from the subscriber connection line for the keypad of a telephone terminal, the feed voltage of the capacitor which extracts for the keypad is switched to either high or low impedance depending on the line condition. The control of this circuit is taken over by the electronic pulse contact which through-connects the controlled electrode path of a transistor which lies in the charging circuit of the capacitor in the closed condition, whereas this path is switched to high impedance while the pulse contact is open.
Patent DE-3109427-A1 (DE)
Title: Feed mechanism for curve-cutting machines
Inventor: STEGHERR LUDOLF
IPC: B23Q5/38
Filed: 1981-03-12
Abstract: In a feed mechanism for curve-cutting machines, preferably for the profile milling, profile grinding or the like of any curved workpieces in bar form, the driver device consists of transport and guide devices, which are at least partly coupled to one another in an articulated manner and are driven, as well as of a stop device arranged on the opposite side of the workpiece. The transport and guide devices on one side of the workpiece and the stop device on the opposite side of the workpiece are connected to one another in such a way that, during a deflection of one or more of the transport and guide devices, the distance between the transport and guide devices and the allocated stop device remains constant. <IMAGE>
Patent DE-3112887-A1 (DE)
Inventor: HOHENADL HEINZ
IPC: G02B6/28
Filed: 1981-03-31
Abstract: 1. A method of manufacturing a coupling element for on- and/or off-light coupling using glass fibres, the axes of which run in a plane, as light waveguides, in which two groups of in each case two glass fibres which run with their free ends parallel to one another and their end faces lying in a plane, have their end faces arranged opposite one another while at the same time their axes are offset, and on both sides of the coupling zone so formed, the glass fibres are guided in grooves in a substrate in such a way that the glass fibre end sections, which rest against the substrate in an unguided manner in the region of the coupling zone, are pressed against one another by an elastic bending of the fibres within each group, characterised by the following method steps- (a) in the surface (3) of an integral plate-shaped substrate (1), a strip-shaped zone (5) having a level which is lowered compared with the surface (3) of the substrate (1), is formed transversely to the intended course of the glass fibres (4) as a glass fibre supporting platform, (b) glass fibre guide grooves (7) are formed in the substrate surface (3) having an approximately X-shaped pattern, with a zone in the region of the crossing of the X, the supporting platform extending symmetrically to the crossing of the X, (c) two glass fibre light waveguides (4) are so inserted into the guide grooves (7) that they respectively extend from a branch of the X across the supporting platform into another branch of the X without intersecting one another, (d) the substrate (1) having the glass fibre light wave guides (4) fixed thereon is divided into two parts (11, 12) transversely to the course of the two light waveguides (4) along a line of symmetry (6) of the arrangement, and the two parts (11, 12) after displacement thereof relative to one another, are fixed in order to achieve the required axial offset.
Patent DE-3131193-A1 (DE)
Inventor: STEEGER GERHARD HEINRICH DR IN
IPC: H04R25/00
Filed: 1981-08-06
Abstract: An exemplary embodiment includes a plurality of parallel signal channels coupled with a signal input transducer, such as a microphone or induction coil. Each of the signal channels includes a respective bandpass filter for selection of a different frequency band, a controlled-gain amplifier, controlled by a volume control potentiometer, circuits for non-linear signal processing, and a bandpass filter for the reduction of distortion components caused by the non-linear processing circuits. A summing amplifier combines the signal components from all channels and is connected via an amplifier to an output signal transducer. Space requirements and power consumption are reduced in such a multi-channel processing arrangement by implementing all of the filters as sampled-data analog circuits. As a result hearing aids are provided which can be worn on the head, e.g. behind the ear.
Patent DE-3131450-A1 (DE)
Title: Liquid-crystal composition
Inventor: KITAMURA TERUO
IPC: G02F1/137
Filed: 1981-08-07
Abstract: The liquid-crystal composition according to the invention contains, as principal components, at least a) 4-n-alkoxyphenyl-4'-alkylcyclohexane and b) 4-n-alkoxy-2,3-dicyanophenyl 4'-alkylcyclohexylcarboxylate. a) is a liquid-crystal compound which reduces the viscosity of the liquid-crystal composition and b) is a liquid-crystal compound of high negative dielectric anisotropy. In the liquid-crystal composition according to the invention obtained by mixing the two components a) and b), these two components have no mutual adverse effect on their characterising properties. In addition, the liquid-crystal composition is suitable for use as a liquid-crystal material for positive colour liquid-crystal display elements of excellent sensitivity. Furthermore, the low refraction anisotropy of the liquid-crystal composition according to the invention allows a display element of excellent contrast to be achieved.
Patent DE-3131641-A1 (DE)
Inventor: KOPP OSWALD
IPC: B24D3/10
Filed: 1981-08-11
Abstract: 1. Method for studding the free ends of the bristles of metallic brush tools with particles of grinding material, with which the tool is provided with a covering whilst these portions which shall studded with the grinding material particles, are left free, and subsequently the partially covered tool is dipped into a galavanic bath, into which the grinding material particles have been introduced, and further subsequently a layer of preferably hard metallic carrier material is deposited, whilst at least a plurality of grinding material particles is partially embedded onto said portions of tool, which had been left free, by electrolytic or currentless galvanic metal deposition, and in which further subsequently the cover from the corresponding portion of the tool is moved, wherein at least the bristle carrying brush tool portion is filled with non-conducting material by dipping it into a non-conducting material, which solidifies within a certain ambient temperature range and which at a higher temperature is liquid, preferably viscous, and that thereafter the cover is again removed from said ends of the bristles, which shall be studded with grinding material particles.
Patent DE-3132408-A1 (DE)
Title: Gas pipe connection element equipped with a fire safety device
Inventor: JESCHKE IMMANUEL
IPC: A62C3/04
Filed: 1981-08-17
Abstract: The invention relates to a pipe connection element, in particular a flange mounted on a piece of pipe or a bolted joint which includes a bush-like piece of pipe. The object of the invention is to accommodate the fire safety device in such a way that no additional installation space is required and that installation and removal is simple and does not require any modifications to an existing pipe network. The invention consists in that the cylindrical housing of a fire safety valve is installed inside the piece of pipe and sealed off by means of a ring seal and that a recess for a fastening element for the cylindrical housing of the fire safety valve is arranged in the piece of pipe.
Patent DE-3135337-A1 (DE)
Title: Open-end spinning apparatus
Inventor: KAMP HEINZ
IPC: D01H4/06
Filed: 1981-09-07
Abstract: In an open-end spinning apparatus (23) with a stationary extended fibre-collecting gutter (60), with a fibre-guide channel (51) which opens out in front of the fibre-collecting gutter (60) and which is connected to a fibre-opening device (24), with a thread draw-off device (25) arranged in front of one end of the fibre-collecting gutter (60), and with a thread-twist transmitter (281) arranged between the fibre-collecting gutter (60) and the thread draw-off device (25), according to Patent ... (Patent Application P 3117443.4), the thread-twist transmitter (281) has a false-twist element, for the purpose of increasing the production speed and improving the spinning result. <IMAGE>
Patent DE-3139183-A1 (DE)
Title: Process and device for utilising waste heat from baking ovens
Inventor: SCHEURER JOHANNES
IPC: A21B3/00
Filed: 1981-10-02
Abstract: A process and a device for utilising waste heat from baking ovens is indicated, by means of which the waste heat recovered by a heat exchanger can be supplied alternatively to both a domestic water circuit and a heating water circuit.
Patent DE-3142718-A1 (DE)
Title: Wheel bolt as an anti-theft device for motor vehicle wheel rims
Inventor: RISSMANN HORST GUENTER
IPC: F16B37/14
Filed: 1981-10-28
Abstract: The invention relates to a wheel bolt as an anti-theft device for motor vehicle wheel rims. The wheel bolt contains a longitudinal bore with a multi-cornered cross-section into which a plug-in interlock with a round cross-section can be inserted, which interlock engages with a locking nose into a groove (8) in the longitudinal bore of the wheel bolt. A disc-shaped flange on the outer edge of the plug-in interlock prevents, in conjunction with a corresponding extension of the longitudinal bore, the ingress of dust into the longitudinal bore and reduces the possibility of the plug-in interlock being forced out or bored into. In addition, a further groove is provided in which an O-ring is located which centres the plug-in interlock in the longitudinal bore. A cap which can be plugged onto the bolt head prevents the plug-in interlock becoming dirty or corroding.