baber/WOPTO huggingface dataset:
Patent DE-2753142-A1 (DE)
Title: Fertiliser prodn. from sulphur oxide(s) in waste gas - by treatment with water and phosphate rock, etc.
Inventor: PIRCON LADISLAV JOSEPH
IPC: C05B1/04
Filed: 1977-11-29
Abstract: Fertiliser is produced by passing gas contg. S oxides through water at pH 3-8 in a multiple stage reactor to form an acid soln. This soln. is maintained at pH 3-8 by addn. of a basic Ca, NH4 and/or K cpd., a Ca cpd., esp. being a P- or N-contg. salt. The basic cpd. is made soluble by reaction with the acid when it is at pH 2.5-4. Stack gas, e.g. obtd. in chemical processes or by burning S-contg. natural fuels esp. cheap, high sulphur coal, can be used. Low-grade phosphate rock may be used as basic cpd., and the prod. may be ammoniated. Economic process for prepn. of fertilisers in solid, liq. or suspension form is obtd.
Patent DE-2756464-A1 (DE)
Title: Double skinned noise absorbing door - has rubber springs and insulation between panels and sealing units in gap between door and frame
Inventor: KURT DEMEL
IPC: E06B7/20
Filed: 1977-12-17
Abstract: The noise-absorbing, double-skinned door is esp. suitable for sound-proofed studios. The two skins of the door leaf are joined together by rubber springs (5). Glass wool or foamed material is fitted between them. One or more rows of unfolding sealing units (4), and esp. of stationary sealing units (8, 9) are mounted in the gap (1) between leaf and frame (3). The unfolding units can be automatically brought together by adjusting devices (6), such as pneumatic cylinders, when the door is closed. There may be two rows of unfolding sealing units in the gap at the bottom, on the underside of the leaf.
Patent DE-2756952-A1 (DE)
Title: Control circuit for self-commutating static converter - produces odd number of current blocks of different length at AC outputs
Inventor: MOLL KLAUS DIPL ING
IPC: H02M7/00
Filed: 1977-12-21
Abstract: The control circuit for a self-commutating static converter allows the current blocks (120 deg. apart) appearing with alternate polarity at the converter's a.c. outputs to be divided into a given odd number of current blocks of different length. A unit comprising several analog comparators is connected in series with a counter and a ROM. The unit's output is coupled to a digital comparator connected to the ROM. Logic gates are coupled to the comparator and ROM and feed the triggering stages.
Patent DE-2801707-A1 (DE)
Title: Text processing machine for automatic typewriters - has two position switch which controls electronic circuit for rapid text recall
Inventor: DETHLOFF JUERGEN
IPC: G06F17/24
Filed: 1978-01-16
Abstract: The text processing machine has a data memory designed to record data sequences (data blocks) which can be rearranged into texts on call by means of a call circuit. The machine has an electronic control unit (2) constructed so that when an output load switch (5) is switched to the load position it affects a partial zone in the memory. This zone contains a certain memory capacity for each call element which is then actuated. The memory capacity corresponds to at least the data quantity. The data input elements of an input until (4) which are also actuated, during the duration of the operating state of the call elements, are also affected. When the switch (5) is moved to the output position the data and blocks of data, which are affected by the data input elements, can be transferred into partial zones of the data memory. These zones being affected by the call elements which are then actuated towards an output (6) in the order of operation of the call elements and input data.
Patent DE-2808114-A1 (DE)
Title: Hydraulic mineral extraction for mine - has slurry disposed through adjacent parallel driven sectors with through cuts
Inventor: ODINOKOV BORIS P
IPC: E21C25/60
Filed: 1978-02-24
Abstract: In extraction from mineral deposits by an hydraulic process, the deposit is divided into columns, each in turn being divided into steps, forming short sectors. Cutting of the extracted strip in two adjacent steps is then effected by a single hydromonitor, in the direction of slurry outflow. Sectors(13) are driven forward parallel to the extracting cuts(11) and connected with them by penetrating blows(16), subsequently extended to the seam floor. When strips in the two adjacent steps are extracted, in the line of slope of these and neighbouring sectors, the main slurry flow is led away through these sectors.
Patent DE-2810759-A1 (DE)
Title: Plastics roof ridge coping - has inverted channel cross=section overlapping nearest roofing tiles, and upside-down U=shaped reinforcing rib
Inventor: FLECK OSKAR
IPC: E04D1/30
Filed: 1978-03-13
Abstract: Plastics roof ridge element for placing upon the ridge slat of a roof, which covers a section of the ridge, instead of individual roofing tiles, is claimed. The roof ridge element comprises an integral-foam body consisting of a hard-foam core between 2 outer plies. It has a cross-section such that it serves a coping whose lower edges overlap the upper edges of adjacent roofing tiles. The lower edges of the coping are lined with soft-foam strips. At its apex, it has a crosssectionally inverted U-shaped longitudinal rib, with the spread of the "U" being wider than the width of the top ridge slat.
Patent DE-2811322-A1 (DE)
Title: Composite plastic tube mfr. - by pouring granules into heated gap around compact plastic tube
Inventor: PETERS HEINRICH DIPL CHEM DR
IPC: B29C48/151
Filed: 1978-03-16
Abstract: A composite tube with an inner tube made of a compact plastic and an outer tube made of a porous plastic is produced by moving the compact plastic tube coaxially downward through a short metal tube with a funnel at the top, leaving an annular gap of 0.2 mm. Free running fusible thermoplastic granules are poured into the gap and through a heated zone, surrounded at both ends by a cooled zone. The tubes, produced continuously are ideal for irrigation and drainage projects. The clogging of the slots, provided in the compact tube for these purposes, is reliably prevented.
Patent DE-2815006-A1 (DE)
Inventor: ANDERNACH ERNST
IPC: F21V21/03
Filed: 1978-04-07
Abstract: The luminaire support element (7) is suspended by means of suspension elements (5). The ends of each suspension element (5) are fastened, on the one hand, to an arm (4) of an eccentric (3) which can be rotated about a fastening element (1) inserted into a ceiling (2) and, on the other hand, to an arm (9) of an eccentric (6) which can be rotated about a screw (8) held in the luminaire support element (7). By rotating the eccentric (3, 6), the alignment of the luminaire support element (7) can be corrected if the ceiling bar holes which accommodate the fastening elements (1) are not in precise alignment. <IMAGE>
Patent DE-2820810-A1 (DE)
Title: Blade for metal shaving machine tool - has inclined contour formed in two stages to reduce risk of fracture
Inventor: BERTENBURG JOACHIM
IPC: B23B27/14
Filed: 1978-05-12
Abstract: The metal shaving machine tool with a rotating head has a double sided blade (1) which cuts a thin shaving from the shaft (2). Each side of the blade has a secondary cutting edge (3, 4) and a main cutting edge (6-9) so that each side of the blade is of identical contour. The cutting edge (6) is inclined at an angle of 5 deg. to 17 deg. w.r.t. the edges (3) whist the edge (7) is inclined at an angle of 18 deg. to 45 deg. w.r.t. the edge. The contour of the cutting edges is less susceptible to fracture when being used.
Patent DE-2822271-A1 (DE)
Title: Sodium fire prevention in nuclear power stations - by fine mesh grids painted with pigments expanding when heated
Inventor: RAPPINI RUGGERO DR ING
IPC: A62C3/06
Filed: 1978-05-22
Abstract: A device for extinguishing a fire in an enclosed chamber having at least one opening connecting it to the atmosphere, consists of at least one rigid fitted in the opening. The elements framing the holes in the grid are painted with at least one layer of a pigment which swells when htd. The layer or layers is (are) sufficiently thick relatively to the size of the holes, to ensure that when the swelling under the action of heat is completed, the holes are blocked. Arrangement is applicable particular to rooms in a nuclear power plant which are exposed to the risk of fire, esp. boiler houses, and must be provided with ventilation openings. The invention provides a security which is lacking with existing fire alarms and equipment for fighting sodium fires.
Patent DE-2823310-A1 (DE)
Title: Biological process control in food industry - by treating food continuously with air ions of specified concentration
Inventor: BUT ANATOLIJ ILLARIONOVITSCH
IPC: A23B7/144
Filed: 1978-05-29
Abstract: The rate of biological processes can be controlled by the action of an ion stream in an electrical field on the food. A stream of air ions with a concentration of >=5 x 105 ions/cm3 and of atomic oxygen with a concn. of >=10 mg/cm3, which much exceed the natural concns., is produced artificially. It is allowed to act for a time which is adequate for the destruction of the microflora and to sustain the nutritive value during storage. Used for long-term storage of fresh fruit and vegetables; in mfr. of alcohol, malt, yeast; improved yield of biogenic matter, horticultural plant control, faster rooting of seedlings, rail and se transport of perishable food, transport and storage of animal fodder. This increases the rate of prodn., improves the quality and lowers the cost for the prodn., processing, transport and storage of human and animal food.
Patent DE-2826670-A1 (DE)
Title: Telephone circuit with main instrument and single extension - has sound generator in each instrument connected to line by switch in other instrument
Inventor: WIEDMANN HEINZ DIPL ING
IPC: H04M1/715
Filed: 1978-06-19
Abstract: Both instruments can be connected to the subscriber line through the same socket. They have moving coil transducers and electronic speech circuits. Microphone (M, M') and receiver (H, H' in main instrument (HA) and extension (NA) are connected by a switch (I, I') directly from the speech circuit (SS, SS') to an internal connecting circuit (IV). Both instruments have a sound calling unit which is used as the only calling element, connected to the line (La, Lb) through the cradle switch (GU, GU') or the switch (I, I'). It has a rectifier (G, G') followed by a sound generator (TG, TG') whose input is connected to the line (La, Lb) by a switch (R, R') in the other instrument.
Patent DE-2834062-A1 (DE)
Title: Insulated two winged double composite window - has two sealing profiles between extra blind frame and second wing frame
Inventor: KNIELING HEINZ
IPC: E06B3/26
Filed: 1978-08-03
Abstract: Two interconnected wing frames, with at least one pane of glass in each, are included in the double window, in composite window form. One wing frame (1) is inserted so as to swivel in a blind frame, with soft elastic sealing profiles interposed in two parallel planes, the second wing frame being supported so as to swivel on the first. An additional blind frame (4) is provided for this second wing frame (2), and there are two sealing profiles (17, 18) in parallel sealing planes between this and the wing frame. A soft elastic sealing profile (13) may also be inserted between the two wing frames, and between the first (3) and second blind frame. This provides four sealing planes altogether, with significantly improved sound and heat insulation.
Patent DE-2848079-A1 (DE)
Title: Prefabricated reinforced concrete cellars stairs components - have recesses under step shank ends matching slopes between support beam saw teeth
Inventor: HEIBGES BRUNO
IPC: E04F11/025
Filed: 1978-11-06
Abstract: The set of structural components is for a staircase, esp. in a cellar, assembled from prefabricated units made of reinforced concrete, with sawtooth support beams on top, and fitting angular steps together with intervening connecting members securing them against relative movement. The support beams (1) have sloping areas (2), parallel to their underside, on top between their saw teeth. On the underside of the open ends of their horizontal shanks the steps (5) have recesses (7) corresponding to the slope, so that the non-recessed areas of the steps laterally overlap the beam's sloped sections. This permits simple but secure lateral fixture of beams and steps, without screws or dowel plugs, and without loss of load-bearing capacity.
Patent DE-2851950-A1 (DE)
Title: Flat battery using alkaline electrolyte - where negative electrode is zinc sheet surrounding manganese di:oxide positive electrode in plastic case
Inventor: CHOBANOV TSVETKO DIPL CHEM
IPC: H01M4/06
Filed: 1978-12-01
Abstract: The battery has a positive, MnO2 plate electrode, and a negative electrode consisting of a sheet of zinc, in a rectangular plastic casing. Electrode is pref. surrounded on both sides by the Zn sheet, esp. where electrode is enveloped in a separator foil made of regenerated cellulose. Three of the flat batteries are pref. located in a rectangular battery housing possessing the dimensions of a conventional battery contg. three round cells. The new battery is used e.g. to drive miniature electric motors in toys, model aircraft, electric razors, and all types of hand held appts. where high power is required. Used, e.g. when using a terminal discharge voltage of 0.8 V, a conventional round battery of wt. 64 g has a vol. of 33.8 cm3 and produces 36 Wh/kg and 68 Wh/litre. But the invention results in a battery with wt. 64 g, vol. 25 cm3 producing 54 Wh/kg and 137 Wh/1.
Patent DE-2857553-A1 (DE)
Title: Thread locking system with elastically deformable sleeve - which has circumferential slots to increase axial elasticity
Inventor: HARTIG ALFRED
IPC: B23B31/40
Filed: 1978-11-30
Abstract: The thread locking system has a sleeve (1) with the screw thread (17) cut in two separate sections. The section between the threaded parts has a number of deep circumferential slots which confer a high degree of axial elasticity on the sleeve which is fitted with a device (13) which enables an axial force to be applied causing the middle section to deform and so lock the thread (17). The principle can be adapted so that the slots are formed in the nut which is then axially deformed by a number of externally fitted bolts. The slots can replace conventional spring elements used for appropriate clamping.
Patent DE-2900323-A1 (DE)
Title: Platinum resistance thermometer with non-linearity compensation - has operational amplifiers in bridge diagonals with differential amplification factor
Inventor: SZEPAN REINER
IPC: G01K7/21
Filed: 1979-01-05
Abstract: The platinum resistance thermometer has a compensating circuit which linearises the temp.-resistance characteristics of the output voltage. The voltages associated with a temperature are then digitalised. It consists of an operational amplifier (1) operating only in an inverting mode with an auxiliary voltage (5). The platinum resistor (2) is connected to the output of the amplifier and one end of a voltage divider formed by two resistors (3, 4) linking one input of the amplifier. The voltage across one of these resistors is fed to a second operational amplifier (6) with a gain of two. The total voltage across the platinum resistor and a reference resistor (3) is reduced by the same amplification factor. This produces an output voltage (7) across a resistor (8) which linearises the current through the platinum resistors.
Patent DE-2905202-A1 (DE)
Title: Viewing box for X=ray slides with rear illumination - has strips coupled to servomotor with transistor switch controlling darkening of mounting plate
Inventor: SEIFERT GERD DIPL ING DR ING
IPC: G02B27/02
Filed: 1979-02-12
Abstract: An illuminated viewing box for transparent X-ray slides is such that the transparent plate for mounting the slides is illuminated from the back. The lighting of the surface is adapted to the formate of the slide. The mounting plate can be darkened by a number of parallel covering strips which can be adjusted in the longitudinal direction by a motor drive. Each strip can be coupled to the servo motor (8c). The control for each strip is via a transistorised switch. The strip is returned to the edge of the viewing box when the slide is released. The number of images clamped to the plate is converted into the operating period of the servo motor. This determine the number of strips automatically.
Patent DE-2909561-A1 (DE)
Title: Rotary-piston IC engine with toroidal cylinder - has two radial sliders, seal fixed on piston for inside connecting rod slot and operates on four stroke cycle
Inventor: ENTSCHEW ALEXANDER
IPC: F01C1/356
Filed: 1979-03-12
Abstract: The rotary-piston engine comprises a circular-section toroidal cylinder inside which a piston (A) rotates. The slot for the connecting rod (K) to the output shaft (L) is closed by a seal rotating with the piston. Radial shutters (E, F) which are withdrawn for passage of the piston, divide the cylinder into two unequal compartments. One compartment has, near one shutter (E), a valve (C) inlet for vaporised fuel and air alternately during successive rotations of the piston, a sparkplug (G) and a valved (D) outlet for a transfer duct from near the other shutter (F). The other portion has a gas outlet (H) at the end nearest the inlet etc.
Patent DE-2922190-A1 (DE)
Title: Flushing arrangement for washing machine additives - has injection nozzles mixing fluids and solids into liquor
Inventor: BARTH ERICH
IPC: D06F39/02
Filed: 1979-05-31
Abstract: In dish washers and linen washing machines fitted with three or more chambers from which the washing powder and conditions are flushed out by injection nozzles, there being pipes connecting to normal multi-way valves, between the spray nozzle and the injection nozzles, there are lateral connecting pipes, these pipes being connected in turn to suction pipes joining the container for liquid washing or conditioning agents. With three or four chamber flushing at least one nozzle is an injector and with five chamber flushing via three-way valve, only the two outer nozzles which are not connected to each other directly, are injection nozzles. Increased numbers of magnetic valves or mechanically operated flushing devices are dispensed with, and the solid and fluid additives are flushed out automatically to be thoroughly mixed with the liquor in the simplest manner.
Patent DE-2926549-A1 (DE)
Title: Explosion-proof housing for solenoid actuator - has space between circuit components filled with casting resin to eliminate air
Inventor: FEND ERICH ING GRAD
IPC: H01F7/06
Filed: 1979-06-30
Abstract: The space for circuit components, e.g. diodes and voltage limiters, is formed from part of the tube used for the housing of the complete assembly. A plate separates the solenoid coil from the component mounting space. It has openings for connections. After assembly of the circuit components all the free space between them, including the free space around the coil, is filled with a casting resin. This serves to exclude air or other gases and practically eliminates the danger of an explosion following a circuit fault. The chamber above the component space contains the necessary terminals for incoming wiring. The proposed construction permits a reduction in the bulk of the solenoid.
Patent DE-2928870-A1 (DE)
Inventor: VURAL GUELERTAN
IPC: E02D3/046
Filed: 1979-07-17
Abstract: In a mass compensated impacting apparatus composed of at least one pair of impacting tools and a common tool carrier supporting the tools, there is provided a two-mass vibration excitation system associated with each tool and including vibrating masses which are positively linearly guided in an essentially non-resilient manner, and a unit driving the vibratory masses with phase relationships such that the resulting average of all mass forces becomes at least approximately zero.
Patent DE-2930911-A1 (DE)
Title: Removing deposits from uranium hexa:fluoride appts. - including oxygenate deposits, by treatment with bromine cpd. and fluorinating agent
Inventor: JACOB EBERHARD DIPL CHEM DR
IPC: C23G5/00
Filed: 1979-07-30
Abstract: Adherent or dusty deposits are removed from appts. in which UF6 is handled, by the action, at room temp. or above, of prods. obtd. by reacting (a) a cpd. yielding Br; with (b) an excess of >=1 fluorinating agent. Process is rapid and simple, avoids corrosion, the risk of explosion and the use of ClF3, and removes hydrolysis prods. of UF6 and other U cpds. contg. O. Dismantling of the appts. is not necessary. Prods. are gaseous. Loss of nuclear fission material is min. Process can be used to remove U from shut-down machines in a nuclear fission cycle.
Patent DE-2934854-A1 (DE)
Inventor: HERTEL OTTO DIPL CHEM DR
IPC: D21H17/55
Filed: 1979-08-29
Abstract: Process for the production of water-soluble auxiliaries for the papermaking industry by reacting (a) 1 part by weight of a polyamidoamine obtained by condensing 1 mole of a dicarboxylic acid having from 4 to 10 carbon atoms with from 0.8 to 1.4 moles of a polyalkylene polyamine having from 3 to 10 alkyleneamine units and containing up to 8 ethyleneimine units per basic nitrogen atom with (b) 0.1 to 4 parts by weight of an  alpha , omega -dichloro polyalkylene oxide obtained by reacting a polyalkylene oxide having from 8 to 100 alkylene oxide units with a compound selected from the group consisting of a thionyl chloride and phosgene and then cleaving the reaction products by heating them to a temperature of from 70 DEG to 150 DEG  C. in the presence of a tertiary amine as catalyst, as crosslinking agent, at a temperature above 20 DEG  C. in aqueous solution or in a water-soluble organic solvent, the reaction being carried out to a point at which the viscosity of an aqueous solution containing 20% by weight of auxiliary is from 300 to 2,500 mPas.
Patent DE-2936923-A1 (DE)
Title: Barrier grating for cattle stalls - includes fixed and movable barrier rod for each stall to contain animal
Inventor: GRAESSINGER HELMUT
IPC: A01K1/06
Filed: 1979-09-12
Abstract: The barrier grating (1) is for cattle stalls, esp. used for milking. There is a fixed and movable barrier rod for each stall ,to bound a barrier opening and fix the animal in the barrier position. The movable barrier rod is moved by the animal into the barrier position and locked. The movable rods are so connected by a linkage that on closing one stall, the adjacent one is opened. The connecting linkage (11) is formed by a pivotable barrier link (21) and a control link (31) which acts on it. The control link is hinged to the movable cut-off rod (4) of one stall (2). There is a control face (36) to lock the movable rod (4') of the stall (5') adjacent to the entry.
Patent DE-2941561-A1 (DE)
Title: Fire-retardant cable duct for buildings - has sections joined by flexible joints allowing deformation
Inventor: LUECHTRATH BERN
IPC: H02G3/04
Filed: 1979-10-13
Abstract: The duct is made of one or more layers of cardboard or cardboard-like flat material. One or more sides has grooves to lend flexibility and to allow the duct to be fitted to the geometry of its environment. The grooves form folds in the sides of the duct making it concertina-like. The folds comprise noncombustible flexible fibres, threads, tapes or thin wires lying across the fold and fixed to the flat material and crosslinked with one another.. The duct is for the cables of heating and air conditioning installations and can also be used for the air ducts themselves. Simple assembly of duct sections at place of installation. Occupies relatively little space during transportation.