baber/WOPTO huggingface dataset:
Patent DE-2950459-A1 (DE)
Title: Lawn-mower with wheels mounted on independent shafts - has concentric pulleys on opposite wheel shafts with groove seating drive belt from engine
Inventor: DOI HACHIRO
IPC: A01D34/69
Filed: 1979-12-14
Abstract: The lawnmower has wheels each with a separate rotary shaft supporting its body, in which it turns. Pulleys (7a, 7b) are fixed to the left and right-hand shafts (6a, 6b) and are concentric, leaving between them a space forming a V-shaped groove for a belt (9) from the driving engine. The pulleys can have conical faces towards each other, and one of them at least can be slid along its shaft, so as to form part of a steplessly-adjustable transmission mechanism.
Patent DE-2951548-A1 (DE)
Title: 2-per:halo-vinyl-cyclopropane-carboxylic acid derivs. - prepd. by reaction of per:halo-cyclopropene with acrylic acid or acrylonitrile derivs.; pesticide intermediate
Inventor: MEIJERE ARMIN DE PROF DIPL CHE
IPC: C07C61/40
Filed: 1979-12-21
Abstract: New 2-(perhalovinyl)-cyclopropanecarboxylic acid derivs. are of formula (I): R1 is CN, CONH2, CO-Hal (where Hal is halogen, pref. Cl or Br), COOH or COO(1-4C alkyl); R2, R3 and R4 are H, phenyl (opt. substd. by halogen or methoxy) or 1-4C alkyl, or R3 and R4 can be linked to form a spiro cyclopentyl or cyclohexyl ring or R2 and R3 can be linked to form a 5- to 7- membered ring; and X1, X2, X3 and X4 are halogen (pref. F, Cl or Br). (I) are useful as intermediates for pesticides, Thus, the halogen atom X1 in (I) can be replaced by H to give cpds. which are known pesticide intermediates (cf.2805274).
Patent DE-3001024-A1 (DE)
Title: Window or door fitting closing pin - has counter-thread screwed into rivet lug, and threaded hole for screw
IPC: E05C9/18
Filed: 1980-01-12
Abstract: A rivet lug fixable to the bolt rod end passing through the inverted rail, and a pin unit located above the rail, are incorporated in a closing pin for fittings on windows and doors. On the part (3d) protruding from the rail (1), at least the rivet lug (3) has a thread, with the pin unit (4) screwed onto it with a counter thread. The pin unit has a threaded hole (4a) passing through it, for screwing in a tightening screw until it fits against the end face of the rivet lug. The screw may have an internal hexagon shape. The pin can be adjusted, regardless of its cross positioning, to regulate pressure, making it usable on widely differing frame profiles.
Patent DE-3001550-A1 (DE)
Title: Solar collector heat source control - has changeover valve with actuating command derived from temp. difference between collector and consumer and time source
Inventor: LEHNERT MANFRED
IPC: F24D19/10
Filed: 1980-01-17
Abstract: The solar energy collector is intended to supply heat energy to a consumer appliance in a system of several such appliances operated at different temperatures. It uses a change-over valve between the collector and appliance. The change-over command for the system control is derived from the temperature difference magnitude between the collector and appliance, preferably as a time-temperature integral. The control device uses temperature sensors both in the solar collector and the two storage vessels, coupled by separate lines to measured value converters, behind which are connected integration. The latter outputs are supplied to comparators, where the integrals are processed. Behind the comparators may be connected evaluation switches. A clock pulse generator may be coupled to the measured value converters and to a change-over switch.
Patent DE-3002072-A1 (DE)
Title: Pressurised gas generator esp. for rockets or flares - has detonator capsule and wires seated in recesses of split plug
Inventor: SOBBE FRIEDRICH WILHELM DIPL K
IPC: F42C19/08
Filed: 1980-01-21
Abstract: Pressurised gas generator comprises an electrical detonator mounted just beneath the cylindrical end plug or cap. This cap (6) is of split construction and has a seating (20) for the base portion of the detonator, grooves (18,19) for the detonator wires leading to the outside of the cap, and an attached small-dia. tube (15) extending down from the base (16) of the cap to house the detonator capsule itself. This tube (15) pref. projects beyond the detonator capsule by at least twice the length of the capsule, more specifically into the filling of the cartridge. The tube may be either cylindrical (as shown) or flared conically outwards towards the charge. Used in partic. for rocket charges, flares and tracers. Simplified construction and more reliable installation of the capsule and wires is achieved.
Patent DE-3003367-A1 (DE)
Inventor: WINN KLAUS
IPC: A47F3/00
Filed: 1980-01-31
Abstract: A construction set for the manufacture of frames for furniture, such as display cabinets, showcases and the like, having base profiles and enlargement profiles, wherein the base profiles have on their front viewing side a closed viewing surface and on their back side a profiled connecting edge. The enlargement profiles also have a profile connecting edge which can be connected to the connecting edge of the base profile. The enlargement profiles have, on both oppositely positioned longitudinal edges, respective connecting edges which are constructed mirror-inverted to one another and are also constructed the same as the connecting edges on the base profiles. The construction set also includes connecting profiles insertable between two closely opposed connecting edges such that the inserted connecting profile clamps together the adjacent base and/or enlargement profiles whose connecting edges oppose one another.
Patent DE-3004058-A1 (DE)
Inventor: HEPP HELMUT DIPL CHEM DR
IPC: C02F1/28
Filed: 1980-02-05
Abstract: The process serves for purifying industrial effluents, which arise in the manufacture of crude aluminium metal by electrolysis, with respect to fluorine. The waters formed by wet purification of the fluorine-containing waste gases are   a) brought by recirculation to contents of from 500 to 6,000 mg of fluorine/litre, b) a first part stream (40) thereof is passed through a number of fixed-bed reactors filled with activated alumina, and c) a second part stream (60) of the first part stream (40) is passed through a further fixed-bed reactor filled with alumina.   The residual water of the first part stream (40) is recycled to the scrubbing-water circulation, and the activated alumina loaded with fluorine is, after processing, recycled to the electrolysis. <IMAGE>
Patent DE-3013152-A1 (DE)
Title: Anti-caking treatment of granulates esp. fertilisers - by spraying with an ammonium, sodium or potassium liquid soap
Inventor: GRUNERT HANS-GERHARD
IPC: C05G3/30
Filed: 1980-04-03
Abstract: In the prodn. of non-caking granules of granulates of hydrophilic and hygroscopic materials, at least one liquid ammonia soap, sodium soap or potasium soap of a >8C carboxylic acid or of a mixture of 2 or more >8C carboxylic acids is applied to the granules. The anticaking effect is due to reaction between the liquid soap and metals contained in the granulate to form a molecular surface layer consisting of e.g. a magnesium, zinc, cobalt, potassium, manganese, copper or iron soap. Since a molecular layer imparts the necessary anticaking effect, only 0.005-0.1 wt.% of liquid soap is needed for the surface treatment. Used in anticaking treatment of hydrophilic and hygroscopic materials, esp. fertilisers.
Patent DE-3019533-A1 (DE)
Title: Ground water supply for heat pumps - recycles oxygen enriched side stream to prevent incrustation
Inventor: WATERKOTTE KLEMENS
IPC: C02F1/64
Filed: 1980-05-22
Abstract: A water supply system, esp. to provide ground water for heat pumps, uses a submersed pump to raise ground water from the perforated section of a 'positive' well to the heat pump on the surface. The colder water is returned to the soil through a 'negative' well. During the standstill periods of the heat pump, oxygen-enriched water which has been produced by spray atomisation and stored, is returned to the positive well to form a catalyst bed. The catalyst bed pptes. the iron and manganese cpds. in the ground water and prevents premature clogging of pipes and heat exchanger.
Patent DE-3021693-A1 (DE)
Title: Protecting trees and plants from animal damage - by treating with emulsion of rubber latex, gelatin soln. and sand
IPC: A01N25/24
Filed: 1980-06-10
Abstract: Trees and plants are protected from damage by animals (e.g. deer) by applying an emulsion comprising 20-30% rubber latex, 35-60% of a 4-6% gelation soln. and 20-35% very fine quartz sand to the endangered parts of the trees or plants.The gelatin is pref. hardened with an aldehyde (esp. HCHO). The quartz sand pref. has a particle size of 0.1-0.3 mm.S The emulsion is easily applied, had good adhesion and weather resistance, and provides year-long protection.
Patent DE-3028389-A1 (DE)
Title: Oligo-deoxyribonucleoside phosphate(s) of specific sequence - contg. one or two types of base, useful for genetic engineering
Inventor: SCHOTT HERBERT PROF DIPL CHEM
IPC: C07H21/00
Filed: 1980-07-26
Abstract: Oligodeoxyribonucleoside phosphates of formula (I) are new ((dCp)a(dTp)b(dGp)c(dAp)d)(dC)n(dG)o(dA)q (I). In (I) (dC,dT,dG and dA are cytidine, thymidine, guanosine and adenosine, respectively. p is 3'-phosphate residue. a, b, c and d are 0-9, and total 5-9 esp. 5. One of m, n, o and q is 1, the others are zeo. (I) does not contain more than two different deoxyribonucleosides). (I) are are prepd. from DNA by partial hydrolysis with selective destruction of 2 or 3 deoxyribonucleoside deoxyribonucleosides, sepn., enzymatic dephosphorylation, then opt. chromatographic sepn. of individual species. (I) are useful as 'building blocks' e.g. codons, for genetic engineering. They can be prepd. relatively simply from natural material, thus avoiding the extreme complexities of chemical synthesis. About 60 cpds. are specifically claimed e.g. ((dTp)(dCp)2(dTp)2)(dC); ((dCp)5(dTp)2)(dC); ((dCp)3(dTp)(dCp)3) (dT); ((dCp)6(dTp)2)(dT) or ((dGp)2(dAp)(dGp)2)(dG).
Patent DE-3030351-A1 (DE)
Title: Mechanical eraser - has motor driven rubber erasing wheel in hand held housing
Inventor: SPRENGEL DIETRICH DIPL PHYS DR
IPC: B43L19/00
Filed: 1980-08-11
Abstract: The hand-held mechanical erasing device consists of a housing (1) with on/off switch (2), containing a battery (3), motor (4) and erasing wheel (5), the motor (4), having a rotating armature, and the erasing wheel (5) formed as a flat disc. This disc (5) can be exchanged, when worn, through an aperture in the housing (6), and is fixed to a bevel wheel (7), which together with a second bevel wheel (8), fixed to the armature shaft (9), forms the driving gear train (7,8). A variation in the erasing head can be made by replacing the rubber disc (5) with a glass fibre brush, which when connected directly to the armature, makes the bevel drive unnecessary. This hand-held eraser, allows more pressure rubbing out to be effected, as its erasing tip can be guided over the image to be removed, with great precision.
Patent DE-3031305-A1 (DE)
Inventor: ROSSBACH HORST ING GRAD
IPC: G03B21/50
Filed: 1980-08-19
Abstract: A motion picture apparatus is provided which comprises a rotary disc shutter having a shutter sector and actuated by an electric drive device. A claw mechanism is controlled by the electric drive device and provides for transport of a film. An electromagnetic solenoid provides for stopping the film in position. A plunger for the solenoid is provided for disengaging the claw transport mechanism after a frame transport phase upon generation of an appropriate signal. A position signal generator provides a shutter position signal depending on the position of the shutter sector and a marking signal generator provides a signal depending on the detection of a marking placed on the film. The position signal generator is connected to a first input of an AND gate and the marking signal generator is connected to a second input of the AND gate. The output of the AND gate is connected to the solenoid. The apparatus and a corresponding method provide for stopping a film without interference in proper position.
Patent DE-3031693-A1 (DE)
Title: Water-to-water heat pump evaporator - incorporates additional heat exchanger for cooling condensate before spraying into evaporator under cooling
Inventor: STEINFORTH ALFRED
IPC: F25B39/00
Filed: 1980-08-22
Abstract: The evaporator is for use in a water-to-water heat pump, in order to improve its efficiency. It incorporates an additional heat exchange surface guiding the warm and liquid cooling medium condensate, so as to cool the latter further and supplement the heat source. The undercooled coolant is only sprayed into the evaporator after passing through the incorporated heat-exchanger. The design allows better use to be made of the condensate enthalpy.
Patent DE-3037623-A1 (DE)
Title: Hermetic door locking mechanism - has outside handle connected to inside handle provided with locking release-fitted closure tightening element
IPC: E05B65/00
Filed: 1980-10-04
Abstract: The outside handle (10), the axial tube and the closure-tightening element (12) form a swingable external handle assembly mutually connected. When the locking cylinder (18) is in locked position, the outside handle (10) cannot be rotated, due to the mechanical action of a locking assembly (20). At the same time the inside handle (14) can be rotated to a limited extent, causing a release of the outside handle blocking as well as that of the closure tightening element, so that the door (1) can be opened from the inside. The inside handle, together with an inner bush (45) inside the axial tube, forms an inside handle unit which can be simultaneously rotated.
Patent DE-3038417-A1 (DE)
Title: Heating foil for heating buildings - has heating conductor paths of lead-tin alloy, and at least one alloy safety path of tin, lead and antimony or lead and bismuth
Inventor: BLANCK GERHARD DIPL ING
IPC: H05B3/36
Filed: 1980-10-10
Abstract: The heating foil comprises a current path-like heating conductor, having defined specific resistivity per length, sandwiched between two polyethylene and polyester foils. The heating conductor comprises a narrow layer of hard lead core alloyed with 0.5-6 (2)%Sb having an Sn coating on both sides; and at least one conductor path formed as a sandwich of a narrow layer of alloy contg. 55.5-78.5 (61.5)% Sn, 20.7-43.7 (37.7)% Pb and 0.3-2.0 (0.8)% Sb, and another narrow layer formed of hard lead core alloyed with 0.5-6 (2)% Sb, having Sn coating on the free sides of the layers. The layers comprise 10-100% of the total thickness of the conductor and the Sn coatings comprise 0.5-3.5 (1)% w.r.t. hard lead core. Alternatively, the first narrow layer of the conductor path consists of a low m.pt. alloy contg. 27-47 (37)% Bi and 53-73 (63)% Pb. The heating foil is used for heating buildings, partic. wooden buildings. The foil has the required electrical resistance and thermal conductivity and minimum Sn content, to reduce costs. The safety conductor path, which stops power supply by melting if excessive temps. occur, has reduced width.
Patent DE-3039747-A1 (DE)
Title: Speed control regulation for magnetic tape recorder - has regulator circuit that compares pulse frequency with video signal frequency value and feeds control data to tape drive motors
Inventor: MANGOLD HANS DIPL ING
IPC: G11B15/52
Filed: 1980-10-22
Abstract: A precision control system is used for accurate speed control of magnetic tape feed in a tape recorder. The regulator circuit (10) requires an accurate input of the actual speed of the tape. In one method, a frequency proportional to speed may be generated based upon known spool diameter and tape thickness together with counting of spool revolutions (13).S Alternatively a tachometer (19) may be used to generate a pulse sequence that can be converted into a frequency using a spool winding diameter measurement. A further method adopts a frequency divider controlled by the diameter measurement (15,16). A braking system (21) is used to maintain correct tension.
Patent DE-3040169-A1 (DE)
Title: Sliding door or window wing carriage running rail - has guide tracks at different vertical distances from carriage support plane
Inventor: LAHMANN ERNST
IPC: E05D15/10
Filed: 1980-10-24
Abstract: The carriage, providing support for the sliding wing of a window or door, has running rollers on two guide tracks of a running rail. They are spaced parallel to each other at right angles to the plane of the outer frame. These two tracks (135,136) are at different vertical intervals (160,161) from the plane of support (169) of the carriage (111). The bounding surface of the rail (110), incorporating the tracks, may slope gently downwards from the fixture point (168) to the open edge (163). This part (167) of the rail may have a tapering wedge shaped cross-section. The rail load-bearing area is strong, and the carriage can have large, strong, securely mounted rollers.
Patent DE-3045205-A1 (DE)
Title: Oil cooled transformer arc protection circuit - uses frame or rod aerial connected to wide band amplifier to measure magnetic field components
Inventor: HEROLD THOMAS DIPL ING
IPC: H02H7/04
Filed: 1980-12-01
Abstract: The arcing protection system for a liquid cooled transformer uses a measuring aerial for measuring the magnetic field components. The aerial is connected to a broad band amplifier with its output connected by a rectifier to an analog integrator which receives clock pulses and input signals from an AND gate. The output is passed to a Schmitt trigger and another AND gate to an output amplifier and a switching device. The aerial can be a frame aerial. It can alternatively be a rod aerial, and can be connected to a selective amplifier.
Patent DE-3045903-A1 (DE)
Title: Herbicidal 2'-phenyl-hydrazino- 2-cyanoacrylic acid ester derivs. - prepd. by reacting a substd. phenyl-hydrazine with substd. 2-prepd. by reacting a substd. phenyl-hydrazine with substd. 2-cyano acrylate
Inventor: EICKEN KARL DIPL CHEM DR
IPC: A01N41/10
Filed: 1980-12-05
Abstract: 2-cyanoacrylic acid esters of formula (I) are new (where R1 is Me, CF3, Cl or Br; R2 is Cl,Br,I or methylsulphonyl; R3 is H,Cl or Br, or R3 is 5-MeO, in which case R1 and R2 are Cl and R2 is H if R3 is 3-Cl; R4 is 1-3C alkyl, allyl or propargyl). (I) are strong and selective herbicides. Specifically claimed cpds. (I) are 2'-(2,4,6-trichlorophenyl)-hydrazino -2-cyanoacrylic acid methyl ester (Ia) and 2'-(2,4-dichlorophenyl) hydrazino-2-cyano-acrylic acid methyl ester.
Patent DE-3047240-A1 (DE)
Title: Increasing the calorific value of throat gas - which is fed with air or oxygen through dry cooler for coke, so rich gas is obtd. which is used to heat coke oven
Inventor: MECKEL JOSEF
IPC: C10B39/02
Filed: 1980-12-16
Abstract: A throat gas is fed through a dry cooling chamber (a) for coke; and chamber (a) is also fed with oxygen. The gases leaving chamber (a) are then used as a fuel gas in the lower combustion chamber of a coke oven. The heat in the gases leaving chamber (a) are pref. used in another part of the coke oven battery, esp. to preheat coal, before being burnt in the lower combustion chamber of the coke oven. The lower limit of the calorific value of the throat gas is pref. adjusted by saturating the gas with steam. Esp. the exploitation of throat gas with a low calorific value and obtd. from a blast furnace.
Patent DE-3102497-A1 (DE)
Title: Jerk-free cam mechanism
Inventor: HAUSCH KARL-JUERGEN DIPL ING
IPC: F01L1/08
Filed: 1981-01-27
Abstract: The invention relates to a jerk-free cam mechanism for the oscillatory driving of a machine component, for example a valve of an internal combustion engine. To achieve an optimum design of the cam shape as regards dynamic behaviour, lubrication coefficient variation and curvature ratios, the elevation curve of the machine component or the cam, as specified by just a few, not necessarily equidistant, interpolation points, is taken as a basis: the interpolation points are interpolated in steps by means of splines of at least the fourth degree. <IMAGE>
Patent DE-3103478-A1 (DE)
Title: Melting-fuse cartridge
Inventor: THIENEL BERNHARD
IPC: H01H85/32
Filed: 1981-02-03
Abstract: In the case of a melting-fuse cartridge, which has a porcelain body (10) in which a melting wire (12) which is embedded in sand (11) is located, a glow lamp (15) is connected in parallel via a high-impedance resistor (16), which glow lamp (15) is inserted in the upper contact head (14) of the fuse cartridge at the location of the identification indicating device. <IMAGE>
Patent DE-3105040-A1 (DE)
Title: Unit for heat conversion
Inventor: VIESSMANN HANS
IPC: F24S10/75
Filed: 1981-02-12
Abstract: A unit for heat conversion, in particular in conjunction with a heat pump, comprising absorber elements which are arranged, in the free atmosphere, on a carrier is designed according to the invention such that strip-shaped lamellae (3) containing at least one heat-transfer-medium throughflow channel (2) in each case are arranged, radially and at a distance from one another, on the perpendicular carrier (4), and the throughflow channels (2) of the individual lamellae (3) are connected to common supply and return lines (4, 5). <IMAGE>
Patent DE-3108443-A1 (DE)
Title: Pulverulent product for binding dust in coal mining
Inventor: SCHRAMM EWALD
IPC: E21F5/16
Filed: 1981-03-06
Abstract: Pulverulent product for binding dust in coal mining, based on calcium chloride or magnesium chloride, has, owing to the addition of alkali metal salts or alkaline earth metal salts, an improved adhesion capacity to the surfaces of the support and of the rock, and an enhanced dust-binding capacity.
Patent DE-3112511-A1 (DE)
Title: Explosionproof circuit housing
Inventor: HUEBNER HANS-GEORG ING GRAD
IPC: H02B1/28
Filed: 1981-03-30
Abstract: An explosionproof and flameproof housing is described for an electrical circuit in communications and warning systems based on wire links, the circuit having one or more boards, switches, connecting terminals or similar electrical or electronic components which are electrically connected to one another and are mounted on a chassis. In order to create a plastic housing which can be used for a voice station (extension) of a wire-based communications and warning installation and which can be operated in regions where there is an explosion risk, it is provided that the chassis is formed from one or more pressure-resistant chambers which are composed of plastic, each chamber enclosing a part of the circuit and having in its base one or more explosionproof bushings for connecting pins which are connected inside the chamber to the enclosed circuit part.
Patent DE-3114108-A1 (DE)
Inventor: REDLICH HORST
IPC: G11B3/00
Filed: 1981-04-08
Abstract: Apparatus for recording an information signal on a metallic record carrier. The information is impressed on the carrier by cutting a groove therein by means of a stylus, the groove being characterized at each point by a slope or modulation pitch angle. The stylus has a longitudinal axis, a leading edge substantially parallel to this axis and a trailing edge. The angle between the longitudinal axis of the stylus and a normal to the surface of the record carrier is greater than 10 DEG  and not more than a value which would make the angle between the trailing edge of the stylus and the surface of the record carrier less than the maximum modulation pitch angle. The stylus is movably attached to a fixed structure by a mounting member and is electromagnetically excited by a driving member to shape the grooves in the record carrier in accordance with the information signal. The record carrier, stylus, mounting and driving members are dimensioned to generate an oscillation at a frequency which is higher than that of the information signal and superimpose this oscillation on the information signal.