baber/WOPTO huggingface dataset:
Patent DE-2945956-A1 (DE)
Title: Gas and fluid sealed rotary pump and motor - contained in housing with gas-tight connection feedthrough(s)
Inventor: PHILIPPS CLAUS-H ING GRAD
IPC: F04C29/00
Filed: 1979-11-14
Abstract: A gas-tight rotary pump driven by an electric motor via a rotating shaft is esp. for use in gas sampling for immission and emission measurements working environment air quality testing etc. The complete sealing of conventional rotary pumps is achieved simply and cheaply without redesigning or rebuilding them. The rotary pump and electric motor are both placed in a fluid and gas tight container with fluid and gas tight wall feedthroughs for the pump suction and outlet pipes and the motor electric cables. The housing may be made with one open end. The pump is placed at this end with its connections projecting outwards. The top of the housing is then closed off by a sealing material.
Patent DE-3000649-A1 (DE)
Title: Material for base of flexible road construction - uses well graded burnt slag waste aggregate from bottom two layers of road
Inventor: BILDSTEIN JOACHIM
IPC: E01C7/08
Filed: 1980-01-10
Abstract: The road construction is divided into a superstructure, an infrastructure and a foundation. The superstructure has a wearing course, a base course and two layers of base material. Both base layers use the slag aggregate but the top layer has a bituminous binder, either tar or bitumen, while the bottom layer is a waterbound material. The construction is cheap because it uses waste materials.
Patent DE-3003178-A1 (DE)
Title: Electrostatic electroacoustic transducer for headphones - has two coplanar concentric membranes serving different frequency ranges
Inventor: GRIESE HANS-JOACHIM DR ING
IPC: H04R19/02
Filed: 1980-01-30
Abstract: The transducer has an inner circular membrane encircled by an outer toroidal membrane. The two membranes radiate different parts of the sound spectrum. The higher-frequency membrane adjoins a flat air cushion on the rear. The acoustic rigidity of this cushion is used to tune to the upper end of the frequency range. The two membranes are concentric and coplanar. The inner membrane acts as the higher-frequency membrane. The membranes consist of electret foils between two electrodes. The foils have a permanent monopolar charge w.r.t. the electrodes. The inner membrane can be tuned to a very high resonant frequency without significantly increasing the mechanical tension in the membrane.
Patent DE-3004250-A1 (DE)
Title: Optical proximity sensor for artillery shell detonation - uses light beam reflected by target and focussed onto position-sensitive detector
Inventor: SEPP GUNTHER DIPL PHYS DR
IPC: G01S17/46
Filed: 1980-02-06
Abstract: The sensor comprises an optical transmitter (10) and detector (13) spaced by a given distance and at a given angle to each other. The target (11) is illuminated by the transmitted beam, with reflected light focussed onto the position-sensitive detector (13) as a light spot. The detector output is fed to a control and evaluation circuit (15) for automatically determining and optimum detonation point relative to the target (11) in dependent on the distance of the shell from the latter and approach velocity. Pref. a one-dimensional continuous position-sensitive detector is used, its linear extent lying in the plane defined by the transmitted beam and the line between the transmitter (10) and the detector (13), the optional detonation point defined by the focussed light spot reaching a given position on the detector (13).
Patent DE-3005252-A1 (DE)
Inventor: STAENDEKE HORST DIPL CHEM DR
IPC: C08K9/10
Filed: 1980-02-13
Abstract: The invention relates to a particulate agent based on a free-flowing pulverulent ammonium polyphosphate for impeding the combustibility of combustible substances, the agent containing (a) about 75 to 99.9 weight % of ammonium polyphosphate and (b) about 0.1 to 25 weight % of a hardened, water-insoluble phenol resin (phenol/formaldehyde-resin) enveloping the individual ammonium polyphosphate particles.
Patent DE-3005964-A1 (DE)
Title: Multiple copper pipes in protective hose - have stainless steel plug in connector sleeves accommodated in hose end-fittings
Inventor: NEITEMANN BERNHARD
IPC: F16L39/02
Filed: 1980-02-16
Abstract: The compound pipeline (1) is designed for high pressure applications. It includes several individual copper pipes (4). The pipes (4) are enclosed by a common protective sleeve (2) and the ends of the pipes are located by a screw type coupling flange (12). The individual pipe ends are provided with stainless steel nipples (5). They are soldered to the copper pipes and form the location for the plug-in coupling system. They have radial flanges (6) and fit into a centering disc (8) lying adjacent to a holding disc (9).
Patent DE-3007863-A1 (DE)
Title: Partially concealed support roller for suitcases - has space-saving casing housing swivel guide pulley for easy movement
Inventor: VOLZ RICHARD
IPC: A45C5/14
Filed: 1980-03-01
Abstract: The support roller for the suitcase is designed as a guide pulley (18) rotatably mounted on a bearing block (17) by means of a rotary bearing (32). This block (17) is swivel mounted in the depression (20) inside the bearing housing (16) by means of a swivel bearing (27) whose axis runs at a distance to the axis of the rotary bearing (32) whilst aligned at right angles to the axis of the rotary bearing (32) and at least approx. normal to the plane of the fastening flange (19) for the housing (16). The depression (20) of the housing (16) has side walls (22,23) set symmetrical to the centre position of the roller (18) at an internal spacing which restricts the swivel angle of the roller (18) to a swivel area of 90 degrees max., pref. no more than 60 degrees.
Patent DE-3011645-A1 (DE)
Inventor: HOEFER RAINER DIPL CHEM DR
IPC: C08F14/06
Filed: 1980-03-26
Abstract: 1. The use of mixed esters of (A) hydroxycarboxylic acids containing up to 6 C-atoms and a) partial esters of (B) saturated or olefinically unsaturated C10 -C24  monocarboxylic acids, which may even be subsituted by a hydroxyl group, and (C) polyols containing from 3 to 6 C-atoms and at least 3 OH-groups or b) esters of (B) saturated or olefinically unsaturated C10 -C24  monocarboxylic acids, which may even be substituted by a hydroxyl group, with (A) hydroxycarboxylic acids containing up to 6 C-atoms and where these mixed esters contain free carboxyl groups, optionally water-soluble salts thereof as dispersion aids for the polymerization of vinyl chloride.
Patent DE-3013449-A1 (DE)
Title: Abrasion end section for concrete pump - has abrasion ring, turnable and lockable on hingeable pipe slide
Inventor: RIKER RUDOLF ING GRAD
IPC: F04B7/00
Filed: 1980-04-05
Abstract: The end section is for a movable hingeable pipe control slide, and the contacting wear resistant gland of a multi- cylinder concrete pump. A wear ring (1) is located on the end face of the control slide opposite to the hingeable pipe (9). The ring is turnable about the central axis, and may be locked. The gland has a higher wear resistant value in the main zone of abrasion. The wear ring is pushed onto or let into the hingeable pipe, and is locked against rotation by a combination of groove/nose; groove/screw; groove/pin. The gland has cast-in areas of graduated abrasion wear resistance.
Patent DE-3019508-A1 (DE)
Title: Monitor for correct keyboard actuation - has common key holder and control electronic circuit receiving data signals from key switches on correct actuation
Inventor: BLASS ROLF-DIETER ING GRAD
IPC: B41J7/96
Filed: 1980-05-22
Abstract: The monitor is intended for reporting the correct actuation of keys, e.g. in keyboards of office and similar machines, by point pressure simulation. The keys (13) are mounted on a holder (2), common to all keys, which is mounted in a slightly shiftable manner. The key switches (18) generate data signals, which are supplied, via a control electronic circuit (16), both to the holder shifting device and to the keyboard output (17). Preferably the holder shifting device is in the form of an electromagnet excitable by a signal control pulse. Alternatively, it may be in the form of an oscillator, which may generate rapidly applicable and slowly fading oscillations within the range from 4 to 8 milliseconds. The data signal may be modulated by a rapidly rising and then fading oscillation, of possibly variable amplitude. The oscillation may consist of a number of time variable pulses.
Patent DE-3020221-A1 (DE)
Title: High power amplifier with inductive load for e.g. voltage transformer - receives square wave input and consists of Darlington cascade with third transistor to tap on prim. winding
Inventor: OHE WILFRIED V D
IPC: H03K17/64
Filed: 1980-05-28
Abstract: The amplifier, e.g. a 12 volt D.C. to 220 volt A.C. converter consists of three transistors, two diodes and the primary winding of a transformer which serves as an inductive load. An input square wave is fed to the base of the first transistor (3) which is also connected to a first side of the primary via a first diode (12). The first two transistors (3,4) are connected in a Darlington arrangement and the Darlington pair collector output is connected to a tap on the primary minding. The emitter is connected to the base of a third transistor (1). The emitter of the latter is connected to ground while its collector is connected to the first end of the primary. As second diode (11) is also connected between the first end of the primary and ground, in opposition to the third transistor. Pref. a dual symmetrical arrangement is used which receives antiphase signal inputs to either side and has a common connection of the second ends of the primaries.
Patent DE-3023118-A1 (DE)
Inventor: UHLEMAYR ALBERT
IPC: C09D11/10
Filed: 1980-06-20
Abstract: A paper printing ink is disclosed composed of a pigment, an alkyd resin binder modified with a long-chain fatty acid and which optionally contains conventional components, such as, lubricants, solvents, and viscosity modifiers, wherein the alkyd resin is a non-drying resin modified with oils, fatty acids, or fatty alcohols having an iodine number less than about 20. The inks of the present invention possess good printability properties and pigment wetting capability. This results in high gloss abrasion-resistant printing films which are free from contact yellowing and odor formation. Moreover, the inks of the present invention can be readily removed from the paper, thereby facilitating recycling of the paper. Methods for utilizing the inks as well as products printed with the inks are disclosed.
Patent DE-3030633-A1 (DE)
Title: Contactless DC indicator for communication cable - has wiegand wire with asymmetrical control giving large amplitude
Inventor: KLOR WALTER DIPL ING
IPC: G01R19/15
Filed: 1980-08-13
Abstract: The galvanically decoupled direct current indicator is used for monitoring subscriber cables in communication systems. It is more efficient and more conveniently assembled than conventional arrangements. The indication point consists of a module contg. a ferromagnetic wire (1) shaped into an approximately rectangular magnetising loop. The loop is directly enclosed by one winding (2) and is placed in the magnetic field of a coil with two windings (3,4) so that the magnetic flux of the winding adjacent to the module opposes that of the outer winding. The wire forming the rectangular loop has a weakly mangetic core and an outer region of magnetically harder material, e.g. it is a Wiegand wire. The induction coil produces a higher magnitude signal using asymmetrical control than could be achieved using symmetrical control.
Patent DE-3030775-A1 (DE)
Title: Paper cutter unit producing signatures with two cross folds - has folding cylinder with cutting blades to remove serrated and pierced edges
Inventor: FISCHER RUDOLF
IPC: B65H45/16
Filed: 1980-08-14
Abstract: The mechanism is intended for cutting (4,5) sheets off a continuously moving paper web (1), and producing at least two cross-folds (9,10; 12,16) with edge cuts parallel to them. It comprises two successive cylinders (11,17) with folding pockets (10,16) working in conjunction with folding blades (9,12) on corresponding cylinders (3,11). The first folding cylinder (11) has fold pockets (10) producing the first fold and folding blades (12) producing the second fold in the pockets (16) of the second cylinder (17). The first folding cylinder is further provided with an edge cutting blade (13) which works in conjunction with a corresponding blade (14) on a cutting cylinder (15). The edges are cut to remove serration and perforation by locating needles (8) produced during the initial cut (4,5).
Patent DE-3034514-A1 (DE)
Title: Supporting structure bearing assembly - has cylindrical rollers flattened in two parallel planes equidistant from axis
IPC: E01D19/04
Filed: 1980-09-12
Abstract: The bearing incorporates several cylindrical rollers. It is esp. used for supporting structure etc. the rollers being accommodated with parallel axes between a fixed and a moving plate. The rollers (4) are flattened along two parallel planes equidistant from their axis. The distance between these planes can be equal to the roller divided by any number between 1 and 10, thus determining the density of packing of the rollers and their load capacity. The rollers can be coupled together by ribs with bosses engaging in drillings in the roller ends.
Patent DE-3038320-A1 (DE)
Title: Insulated plaster board panel floor - has underside roughened light intermediate panels on base of cork scrap
Inventor: OBERG HERMANN ING GRAD
IPC: E04F15/18
Filed: 1980-10-10
Abstract: The layer of loose bulk material, and dry-coated covering of panels, pref. with plaster content, make up a floor. Bulk material in the form of cork pieces (2) is applied to the underfloor. A lightweight panel (3), with pronounced roughening on the surface facing this, is laid on it, with this panel's outward-facing side connected to a plaster fibre panel (4). The light panel can be of wood wool bonded with cement or magnesite. A layer of plaster can the two panels together. This is well insulated for heat, noise and tread resonance, and heavily loadable while comparatively thin, and is easily laid without skilled labour.
Patent DE-3040391-A1 (DE)
Title: Fibre bale dyer - has a box-shaped vessel with dyestuff flowing into the centre for recirculation
Inventor: BRUN JENS
IPC: D06B5/14
Filed: 1980-10-25
Abstract: A box-shaped vessel is used to contain the compressed bales of fibrous cable material, with perforations in two opposing walls for the dyestuff to flow through. Thereis also a dyestuff feed into the centre section of the unit, supported from one of the sides, connected to a dyestuff recirculation system. The dyestuff path, therefore, is to pass into the centre of the vessel, to flow out through the perforated walls. The system effectively reduces the layer thickness of the material, without dismantling and repacking the bales from their normal structure on delivery.
Patent DE-3044890-A1 (DE)
Title: Fuel-saving vehicle engine arrangement - has engine divided into two halves, with flywheel and clutch to allow parts to run separately
Inventor: WILLMANN MICHAEL ING GRAD
IPC: B60K17/00
Filed: 1980-11-28
Abstract: The vehicle engine (1) has its cylinder block divided into two separate parts (2,3) and has a drive gearbox (4) fitted between to drive the main gearbox (5). The drive gear consists of a flywheel (10) connected by clutch mechanisms (9,11) to the engine crank shafts (6,12). The flywheel carries teeth (15) which mesh with a drive gear (16) to drive the main gearbox (5) through the main drive clutch (17). This method allows the vehicle to be powered by either half the engine or both halves. When the second half is brought in, it is synchronised by the flywheel, when greater power is required.
Patent DE-3100657-A1 (DE)
Title: Changeover device for a tapcock
Inventor: HARTMANN SIEGFRIED
IPC: F16K5/16
Filed: 1981-01-12
Abstract: In a tapcock in pipelines or the like, a conical plug is raised off its seat in the cock housing before rotation. This takes place by means of a hydraulic lifting cylinder (46). The changeover of the tapcock takes place by means of a hydraulic pivoting drive (48). A hydraulic follow-up control ensures that the rotation of the plug (18) by means of the pivoting drive (48) cannot take place before the plug (18) has been raised off its seat. <IMAGE>
Patent DE-3111982-A1 (DE)
Title: Play area with at least one child's plaything
Inventor: BECKER KARL NIKOLAUS JOSEF
IPC: A63C19/00
Filed: 1981-03-26
Abstract: Play area with at least one child's plaything, a self-supporting and transportable base slab bearing the at least one child's plaything and forming the play area with its upper side, with the result that the unit, comprising the base slab and the child's plaything, forms a mobile play area or a mobile play unit which permits rapid erection of a playground and the erection of playgrounds for a limited period of time.
Patent DE-3114958-A1 (DE)
Title: Appliance and method for igniting hydrocarbons
Inventor: LOEFFLER OTTO ING GRAD
IPC: F23Q3/00
Filed: 1981-04-13
Abstract: In an ignition appliance for hydrocarbons with a device for converting hydrocarbons fed in in liquid form into a state of spatially fine dispersion, and with an electrical ignition device for igniting the finely dispersed hydrocarbon in the mix with air it is provided, in order to achieve reliable and rapid ignition under the most varied conditions in terms of the type of hydrocarbon and of the hydrocarbon-air ratio, that the device for converting the liquid hydrocarbon into the state of fine dispersion comprises an electrically heated evaporator chamber (1) into which the hydrocarbon is introduced in liquid form and from which it emerges in gaseous form, and that the electrical ignition device provided takes the form of a spark ignition element (12) which, between electrodes, produces an ignition spark whose energy is concentrated essentially in the breakdown phase of the initial phase of the ignition spark. According to the method, hydrocarbon fed in in liquid form is therefore evaporated by electric heating, and the evaporated hydrocarbon is ignited by means of an ignition spark which is generated between ignition electrodes and whose energy is essentially concentrated in the breakdown phase of the initial phase of the ignition spark. <IMAGE>
Patent DE-3115913-A1 (DE)
Title: Scaffolding with bar-shaped structural elements
Inventor: KOETTER KURT
IPC: F16B7/04
Filed: 1981-04-22
Abstract: The invention relates to scaffolding with bar-shaped structural elements which can be fastened on one another, on the head side, by a connecting cube, into the threaded bores of which there are screwed projecting connecting parts which lie, on the head side in each case, in a longitudinal cavity of the structural element and, there, hold the structural element on the connecting part by means of a fastening part plugged transversely into the structural element and the connecting part. The fastening part is a rotary bolt with eccentric, which is plugged in its entirety through the structural element and the connecting part. It is rotatably mounted in two mutually opposite walls of the structural element and can be clamped on the cube by the structural element.
Patent DE-3125768-A1 (DE)
Title: Protection sleeve, which is flameproof and resistant to coal dust, for explosive materials
Inventor: FOJT LAJOS DIPL PHYS
IPC: F42B3/28
Filed: 1981-06-30
Abstract: The invention relates to a protective sleeve, which is flameproof and resistant to coal dust, for explosive materials, especially for use in underground mining. The protective sleeve contains a hydrogel. According to the invention, the characteristic feature of the protective sleeve is that the hydrogel contains magnesium hydroxide as an additive. In the case of a preferred embodiment of the protective sleeve according to the invention, the hydrogel contains pearlite. The protective sleeve according to the invention, which contains hydrogel, is more plastic, more chemically stable and less susceptible to damage than the known protective sleeve. In addition, the protective sleeve according to the invention improves the detonation properties of the explosive materials protected by it, in a surprising manner. The respectively desired consistency of the protective sleeve can always be adjusted by changing the quantity of pearlite incorporated in the hydrogel, which has no influence on the advantageous properties.
Patent DE-3126222-A1 (DE)
Title: Method for testing filled glass containers
Inventor: KLINKSIEK BERND
IPC: G01N29/11
Filed: 1981-07-03
Abstract: The test method is based on the fact that defective (faulty) glass containers are destroyed by the effect of ultrasound, while mechanically perfect containers remain undamaged. The containers are guided successively in a liquid bath past an ultrasonic horn. In this process, the ultrasonic power and the distance of the containers from the ultrasonic horn are dimensioned such that the containers floating freely in the region of the ultrasonic horn are sucked in by the underpressure (subatmospheric pressure) which prevails in the liquid bath below the ultrasonic horn. <IMAGE>
Patent DE-3129400-A1 (DE)
Inventor: SIMON MANFRED DIPL CHEM DR
IPC: B42D15/02
Filed: 1981-07-25
Abstract: A forgery-proof flat article, for example, for the production of banking cards, credit cards, and the like, is provided with a security feature analogous to a watermark and is made of thermoplastic and elastomeric synthetic resins based on transparent, translucent, or colored sheets made by extrusion, calendering, blow-molding, or spread coating, or composite sheets therefrom, with an application of a colorant, capable of migrating, to the surface in the presence of a crosslinkable component in the flat article and/or in the colorant application. The colorant application, upon reaching the desired migration depth of the applied colorant, is fixed in the flat article by a crosslinking reaction. This flat article, by the use of two differently quickly migrating colorants, has a coloring showing on both sides of the flat article the security feature in congruence, this security feature appearing on the topside in the color of the more rapidly migrating colorant and, when the article is viewed while held up to the light, appearing in the form of the mixed color. Special effects are obtained in one embodiment of a composite flat article wherein one sheet side, treated with two different colorants, is bonded by laminating to a further sheet. After penetration of the colorants and fixation, the security feature is visible on both sides of the sheet and recognizable in the mixed color when the article is held up to the light and viewed in this way.
Patent DE-3131257-A1 (DE)
Inventor: WAL WILLEM JOHAN JACOB VAN DER
IPC: C01B3/56
Filed: 1981-08-07
Abstract: Process for removal of sulfur compounds from gases by passing the gases over an absorption mass which, on an inert support having a specific surface area of more than 10 m2 per g, contains metal oxides which react with hydrogen sulfide to give metal-sulfur compounds and at least 20% by weight of which metal oxides are present in finely divided form with a particle size of less than 40 nm. The gases are passed at a temperature of 5 DEG  to 800 DEG  C. over the support loaded with metal oxide, and the resultant support loaded with metal-sulfur compounds is regenerated by passing gases containing oxidizing agents over it.
Patent DE-3131491-A1 (DE)
Title: Method (I) of parting solid articles of brittle material, such as for example glass
Inventor: STAHN DIETER DIPL PHYS
IPC: C03B33/095
Filed: 1981-08-08
Abstract: The invention relates to a method of parting solid articles of brittle material, for example glass. Until now, only methods which part glass blocks along one symmetrical plane with the aid of thermally initiated stresses have been known. Details of the method allowing parting along a plurality of parting planes at the same time are given.