baber/WOPTO huggingface dataset:
Patent DE-2263236-A1 (DE)
Title: Electrical insulation has silicone-modified lacquer film - on glass fabric and mica bonded with liq synthetic rubber, butanolised phenolic resin and oil for elasticity and strength
Inventor: PONOMAREW LEONTIJ TERENTEWITSC
IPC: H01B3/50
Filed: 1972-12-23
Abstract: The material, based on glass "eskapon" lacquered fabric and mica, bonded with a binder, has the lacquer film modified with =30 wt.% organo-Si cpd. (w.r.t. the substrate), whilst the binder for bonding and impregnating the mica consists of a mixt. of liquid synthetic rubber, butanolysed phenol/HCHO resin and mineral and/or vegetable oil, in an amt. of 5-30 wt.% (w.r.t. the substrate). Suitable for insulating bus bars, windings, armature segments, coils etc. It has good insulating props., improved thermal conductivity and can be exposed to temps. 150 degrees C for long periods.
Patent DE-2305850-A1 (DE)
Title: Horn or shell combination blocks or plates - by welding combined pieces by subjecting to heat and pressure in moist medium
Inventor: POTTGIESSER CLAUS
IPC: B29D12/02
Filed: 1973-02-07
Abstract: Raw material in the form of plates, blocks etc. esp. for the prodn. of spectacle frames, are produced from natural horn (e.g. buffalo horn, or tortoise-shell) by combining pieces of horn or shell, and welding the combination by subjecting to heat and press. in a moist medium (e.g. contg. water). Dense, homogeneous raw material in the form of plates or blocks of the correct dimensions are obtd. for further processing in an economical manner.
Patent DE-2334165-A1 (DE)
Title: Fast response overload protection relay - uses logic circuits which discriminate between faults and switching surges
Inventor: ROELLECKE HUBERT
IPC: H02H1/04
Filed: 1973-07-05
Abstract: The circuit is for use in power system protection, and relies on the fact that switching surges decay very rapidly although their peak value may be the same as that for a fault. Protection current transformers are loaded onto a resistor which is followed by an integrator to eliminate any d.c. component. The integrator output is fed to logic gates and a trigger circuit is used to control a flip-flop element. Alternate positive half cycles of the measured current are applied to the logic gates and their analog stores, and the stored values are measured in a comparator. If the second positive half wave is less than the first there is no fault and therefore no output. If equal or greater a fault is indicated and the remaining logic elements and amplifiers respond to trip the circuit breaker.
Patent DE-2336954-A1 (DE)
Title: Flyweight coupling for washing machine speed change - with central control disc between control wts. and flyweights
Inventor: LOOK GUENTER DIPL-ING
IPC: F16D43/18
Filed: 1973-07-20
Abstract: Flyweight coupling for washing machine changeover gear, has pivotable flyweights with friction surfaces, and control wts. for the pivoting out of the flyweights above the changeover rotation speed. A common, centrally mounted control disc, to transmit the control movement, is between the control and fly-weights. Each control wt. is pref. mounted with a respective flyweight on a driven pivot pin; the control disc planar and, seen axially, is between the control and fly weights. The pivot pins pass through the control disc in corresp. openings. For washing machines with pole-switching motors, the flyweight changeover permits several rotary speeds to be obtd., for washing or centrifuging, by means of different motor speeds.
Patent DE-2343442-A1 (DE)
Title: Inverter with push-pull amplifier and output transformer - has tapped secondary winding switched by triacs to hold efficiency constant
Inventor: KLEIN GUSTAV
IPC: H02M5/27
Filed: 1973-08-29
Abstract: The transistor inverter has the output transformer primary coupled to the output of its push-pull amplifier. The transformer secondary has several tappings and each tapping is connected over a triac or thyristor to the same output terminal, i.e. to the same end of the load. The triacs or thyristors are controlled by a control unit which monitors the supply voltage and regulates the triacs or thyristors in a way which keeps the inverter, overall efficiency constant by switching in the appropriate secondary subwinding, and therefore independent of supply fluctuations. Between the control unit logic and switching amplifier may be incorporated electronic zero voltage switches.
Patent DE-2344531-A1 (DE)
Title: Efficient luminescent diode with touching alternate-polarity zones - are diffused into s-c substrate giving conc. gradient in migration direction
Inventor: KRAUSE GERHARD
IPC: H01L33/00
Filed: 1973-09-04
Abstract: The efficient luminescent diode has more than 30 zones of alternate polarity diffused into the surface of a semiconductor substrate of resistivity greater than 100 ohm. The doping concentration of the zones is chosen high enough to allow a current to flow through the pn-junction by tunnelling or as a result of the Zener effect. The doping concentration parallel to the surface of the substrate has a gradient in the direction of the pn-junction electron flow. The alternate-polarity zones touch one another or are grouped into spacially separate pairs whose opposing two zones touch one another. The zones may be on both sides of the substrate.
Patent DE-2344908-A1 (DE)
Title: Automatic fire alarm system - with control by flame alarm interrogated after two smoke and/or one heat alarm signals
Inventor: TIEDTKE KARL
IPC: A62C35/60
Filed: 1973-09-06
Abstract: Automatic fire alarms control a local fire extinguishing system has a flame alarm which is interrogated after smoke alarms of an alarm line have given at least two closely successive alarms, or at least one heat alarm has responded once; the flame alarm starts and operates the system, and is again interrogated after a first extinguishant outflow rate for a given time. If it responds further, the system is switched to a second extinguishant delivery rate, and so on. Preferably infra-red flame alarms are used, and are immediately reset after response until two smoke warnings or a heat warning have again been given.
Patent DE-2347998-A1 (DE)
Title: 2-chloroalkanoic acids purifn - by azeotropic distillation
Inventor: HORSLEY LEE HERBERT
IPC: C07C51/46
Filed: 1973-09-24
Abstract: A 2-3C2-chloroalkanoic acid (I) is separated from its mixture with the corresp. 2,2-dichloroalkanoic acid by adding to the mixture an azeotrope-forming agent (II) and distilling (I). (II) has a b.p. at 1 atm. pressure of 145-240 degrees C and is selected from a 'halo)hydrocarbon, a dialkyl ether and/or an alkylenyl hydrocarbon ether. The process is esp. useful in separating chloroacetic acid and 2-chloropropionic acid from their mixtures with the corresp. dichlorinated acids e.g. 2,2-dichloropropionic acid, useful as an effective grass killer.
Patent DE-2358006-A1 (DE)
Title: Styrocet, mat. for making waterproof road base - consists of plastics waste dissolved in trichloroethylene with addn. of dry cement powder
Inventor: HANKE GUSTAV
IPC: E01C3/04
Filed: 1973-11-21
Abstract: In making a waterproof base for a road, plastic waste is dissolved in trichloroethylene in a wt. ratio of 15:100. To 6.5 parts of the soln. formed 3.5 parts of dry cement are added and the mixture is well mixed. It is sprayed onto a prepared surface at a density of 1 kg/m2 and is then rolled. The bitumen surface is applied directly to this.
Patent DE-2359450-A1 (DE)
Title: Press for compressing metal swarf - consists of press chamber closed off by a pack compressed in the previous stroke
Inventor: SYKORA MIROSLAV DIPL ING
IPC: B30B9/30
Filed: 1973-11-29
Abstract: Metal swarf is fed into a press chamber, the opening in which is provided at its lower edge with a cutter blade. A second cutter blade is mounted on the press die, so that the swaf which extends into the chamber is sheared off when the die descends. The die is operated by a hydraulic cylinder. One side of the press chamber is curved so that it converges towards the chamber outlet opening. The press die has a hinging section which hinges into the die when it enters the converging part of the press chamber, so that the area of the die reduces. The swarf is compressed into a block inside the conical outlet of the chamber out of which it is pressed when the next lot of swarf is compressed.
Patent DE-2360142-A1 (DE)
Title: Multi-layer cross bottom valve sack - has inner lining with transverse straight closure edges, protruding over valve end
Inventor: GROENER ALOIS
IPC: B65D30/08
Filed: 1973-12-03
Abstract: The multi-layer valved sack of cross bottom or folded bottom design has an outer wall formed on a sleeve drawing machine prior to bottom formation at one sack end. A tubular inner lining is provided in an offset manner in relation to the outer wall. The inner lining has connecting edges extending orthogonally to the long axis of the outer wall and protrudes at least at the valve end of the outer wall over the closing edges in axial direction. This protrusion may be provided at both ends. Preferably the inner lining is formed in one piece. If the inner lining is formed from two tubular parts, an axial offsetting provides overlapping regions, but the protrusions are provided at each end by a different part of the inner lining.
Patent DE-2361407-A1 (DE)
Title: Railway rolling-stock brake truss bar - with brake-block pivots and draw-loop on rear of U-sectioned triangular carrier
Inventor: KIANK HORST
IPC: B61H13/36
Filed: 1973-12-10
Abstract: The assembly comprises an essentially triangular base unit with draw loop and two brake-block pivots at the apexes. The base unit is a solid-sided carrier of U-shaped cross-section, with rear pointing upwards when installed, and it is here that the draw loop and brake-block pivots, of various types, are mounted. At the draw loop the U-shaped cross-section of the base units may be reinforced by a rib, and its flanges may be wider here than in the area of the brake-block pivots. Brake triangles with varying attachment dimensions can be economically manufactured on the principle, combining light weight with high loading capacity.
Patent DE-2400998-A1 (DE)
Title: Antiskid spike for motor vehicle tyres - has truncated conical shape with head and a carbide core
Inventor: BEEK JOSEF GERHARD VAN
IPC: B60C11/16
Filed: 1974-01-10
Abstract: The spikes have a truncated conical body and a flanged head at the thicker end. The narrower end of the truncated cone points out of the tyre. The spike has a central bore into which is fitted a carbide inset which comes into direct contact with the road surface. The spike truncated conical body is steel, and the conical body has circumferential grooves to ensure good embedment. A carbide insert fills only the lower part of the spike body bore and the upper part is filled with the bedding rubber. Diametral grooves can be provided at the top of the flange. This spike is moved relatively little when the vehicle travels and the spike unit is firmly embedded in the rubber.
Patent DE-2403113-A1 (DE)
Title: Turbine compressor swirl vane adjustment - has double annular ring gear turning pinion for each vane of two rows
Inventor: KOTZUR JOACHIM
IPC: F04D29/46
Filed: 1974-01-23
Abstract: The two successive rows of swirl vanes of a turbo-compressor are differentially adjusted relative each other by means of cogs mounted on the swirl vane shaft through a commonly adjustable toothed wheel rim. The differential coupling is effected in that the diameters of the cogs are different. Pref. th two rows of vanes are regulated by one toothed wheel rim, each independently operated of the other. The inner vane rows has each vane inclined at a steeper angle to the wheel radius than the outer row. The vanes and pinions are spaced either side of a separating wall adjacent the ring gear.
Patent DE-2406712-A1 (DE)
Title: Listening device for multichannel stereophonic sound - enables listening without headphones or any other accessories in contact with head
Inventor: FUSBAN ULRICH DIPL ING
IPC: H04S1/00
Filed: 1974-02-13
Abstract: The apparatus corrects the headphones signals at each position of the listeners head to provide audio signals which are correct in time and phase. Distance measurements are made between the head of the listener and the loudspeakers at its sides, which reproduce the headphones signals and a control signal is derived from the difference between the distances which delays the signal which would arrive too early, owing to a shorter distance; this delay is achieved by the use of an endless recording medium. The signal delay for one channel is constant, but is varied for the other by means of a movable reading head.
Patent DE-2407150-A1 (DE)
Title: Enclosed return runway for toy cars - discs with projecting spokes push cars forwards to be returned
Inventor: KOJIMA SHIZUKA
IPC: A63H18/14
Filed: 1974-02-15
Abstract: An enclosed runway for toy cars is presented. There is a straight central runway and turning sections at each end. They rise above the level of the central section, turn in upon themselves to end still just above the height of the central section. The sections carry tracks for the toy cars to form a continuous runway. One end constitutes the drive section and is provided with discs having projecting spokes to catch the cars and impart a forward motion to them. The other end also turns the cars round 180 deg. for a return run and registers each completed course on a counter.
Patent DE-2408176-A1 (DE)
Title: n-Type gallium antimonide mfr - contg sulphur and excess gallium, and exhibiting relaxation of conductivity
Inventor: GOLUBEW LEW WASILJEWITSCH
IPC: C30B15/00
Filed: 1974-02-20
Abstract: n-Type gallium antimonide is produced by seed-crystallisation from a melt of GaSb using the Czochralski method to obtain a single crystal of GaSb contg. alloy additions. Seed crystallisation is undertaken from a melt of GaSb with a Ga addn. of 0.04-0.k wt.% in excess of the stoichiometric amt. of Ga in the GaSb, and with the addn. of 0.001-0.01 wt.% of sulphur. The object is to obtain n-type GaSb (S) which exhibits relaxation of conductivity. Esp. used for the mfr. of tunnel diodes, and other electronic devices. When GaSb is cooled, e.g. to 90 degrees K, its specific electric resistance alters immediately to the equilibrium value at that temp. By using the invention, this alteration is delayed.
Patent DE-2411516-A1 (DE)
Title: Toothed coupling for change speed gear - provides synchromesh change without close tolerances by floating baulk ring
Inventor: DROESCHEL HELMUT
IPC: F16D23/06
Filed: 1974-03-11
Abstract: The gear box output shaft carries the first gear and second gear mounted on needle roller bearings. The synchromesh baulk rings are fitted on either side of the compensating ring which can slide axially on the shaft in the grooves which are close fit in the vertical direction but allow limited lateral play in the horizontal direction. The periphery of the compensating ring has two diametrically opposite projections which engage in grooves in the gear change muff with a radial clearance in the vertical direction. This allows the compensating ring to "float" avoiding the need for close tolerances.
Patent DE-2420193-A1 (DE)
Title: Teaching aids sorting and filing system - has collection and storage containers forming part of larger mobile storage
Inventor: KRUEGER HEINRICH
IPC: B42F7/14
Filed: 1974-04-26
Abstract: The installation is designed to facilitate the collection, sorting and filing operations for correspondence and teaching aids using a collection container and a mobile storage system located in the office or class room. The collection container consists of a cover surface, a base and two parallel sidewalls, a rear wall and an open front fitted with service and indicator marks and with a closure cap. The storage container may consist of a standard frame to carry the collection container with a base, cover surface, two side surfaces and foldable edges or may be in the form of a rod type frame to support or suspend the collecting containers by inward sliding.
Patent DE-2420883-A1 (DE)
Title: Electro-medical irradiation system - employs radiation of decimeter wavelength to coagulate plasma of cancerous cells
Inventor: GUETTNER WOLFGANG JOACHIM
IPC: A61N5/02
Filed: 1974-04-30
Abstract: The apparatus for electro-medical irradiation employs irradiation with waves of decimeter length of a pure H type or predominantly so, and utilises a frequency band in which the cancerous cells display a sharp high frequency resonance. At the same time there is a sufficient margin of safety with respect to those wave lengths which would have the same resonance effect on normal healthy cells. The density of the energy field is sufficiently high to bring about the coagulation of the plasma of cancerous cells. The apparatus uses a number of sources of irradiation arranged around the patient to irradiate the affected part from as many directions as possible.
Patent DE-2424407-A1 (DE)
Title: Electrolytic condeners sealed with rubber stoppers - contg. polyisoprene and ethylene-propylene terpolymer mixt. as main components
Inventor: NISHIZUKA IWAO
IPC: H01G9/10
Filed: 1974-05-20
Abstract: Rubber stoppers for electrolytic condensers contain, by wt., 10-50% polyisoprene, (I), and 90-50% ethylene-propylene terpolymer, (II) as main constituents, an organic peroxide as cross-linking agent and other S-free components. Used for closing one end of metal casing opening. Stoppers are electrochemically and mechanically stable towards electrolytes contg. acid amides as solvents, and temp. characteristics of condensers are improved; (ii) leakage current characteristics are improved and corrosion of anode Pb pole is inhibited.
Patent DE-2425015-A1 (DE)
Title: Electric heater for liquids - having PTFE-insulated zigzag-shaped heating wire wound about the liquid-contg. vessel
Inventor: HILLINGER ERICH
IPC: H05B3/58
Filed: 1974-05-24
Abstract: An electric heater for liq. media comprises a container or tube about which an insulated heating element is wound. The heating element is pre-shaped in zigzag or other configuration. The arrangement is used for mfr. of e.g. domestic water heaters and coffee-making machines; it is safe in operation and has long service life.
Patent DE-2432266-A1 (DE)
Title: Two naturally occuring hypotensive agents - extd. from Cadia ellisiana after removal of fats and septd. by chromatography
IPC: A61K36/48
Filed: 1974-07-05
Abstract: The cpds. have the following props: (I) C20HimN3O3; m.pt. 178 degrees C mol. wt. (mass spectrometry and osmometry in MeOH) 357; UV spectra, max at 268 mph, log E 4924 (MeOH); alpha 20 degrees D = 80 degrees (CHCl3) and (II) C15H24N2O2; m.pt. 170 degrees C mol. wt. (mass spectrometry and osmometry in acetone) 264; UV spectra max at 270 m mu, log E 3.61 (MeOH): alpha 20 degrees D = +68 degrees (water).
Patent DE-2439062-A1 (DE)
Title: Multi-roll rolling mill stand - which is made rigid by arrangement of work and support rolls in bearers
Inventor: POLJAKOW MICHAIL G
IPC: B21B13/12
Filed: 1974-08-14
Abstract: Rolling mill stand for precision rolling of bars and profiles comprises a frame on which are mounted an inlet and outlet roll bearer with the work rolls, whose axes are situated in parallel planes perpendicular to the rolling axis, and offset to each other around the rolling axis by 1/2 the angular pitch of the rolls. Support rolls are arranged in a single plane perpendicular to the rolling axis between the parallel planes of the work rolls, and each work roll of the inlet roll bearer rests on 1 support roll while each work roll of the outlet roll bearer rests on 2 successive support rolls.
Patent DE-2439278-A1 (DE)
Title: 1,3,5-Trialkyl-hexahydro triazine prepn. - from formaldehyde and primary aliphatic amines mixed with cooling and reacted with separation of water
Inventor: FUERST ERNST DR
IPC: C07D251/04
Filed: 1974-08-16
Abstract: having general formula (I), (where each R is opt. inert gp.-substd. 1-20C alkyl or cycloalkyl) are prepd. by reacting equimolar quantities of HCHO and a prim. aliphatic amine RNH2 in aq. or alcoholic soln. and sepn. of solvent, by process in which (a) the reactants are mixed with cooling at 40 degrees C and (b) water is sepd. from reaction mixt. in a thin layer evapg. at 100-110 degrees C with a period of dwell 120 secs. (I) can be prepd. continuously in almost quantitative yields, e.g. >96%, and high purity, e.g. >99%, in 1 step, without additional purificn.; (ii) (I) obtd. are transparent and water-white. 20-50% aq. HCHO solns. are prefd.
Patent DE-2440762-A1 (DE)
Title: Rectangular bottle or can carrier box - has lid formed by flaps attached to two sidewalls with tongues engaging in others
Inventor: KNOEFERL FRED
IPC: B65D5/10
Filed: 1974-08-26
Abstract: The lid is formed by two flaps and closed without the aid of glueing. These flaps (8) are attached to the sidewalls (3) without handholes, and are preferably of the same dimensions each comprising two portions (6, 7) joined along a fold line. The two inner portions (6) form the lid and the outer ones (7) lugs, each with hook-shaped locking tongues (8) at the sides. Each of the sidewalls (1) with a handhole (2) has attached to it a flap (9), preferably via a fold line, and the outer edge of this flap has a recess formed in it so as to fit part of the way wound the handhole, being glued to the inside of the sidewall near the hole. This portion of the flap (9c) forms a support for the lid when shut, and has a slot (12) in which the locking tongue engages.
Patent DE-2449349-A1 (DE)
Title: Side member for spectacle frame - has metal insert embedded in plastic plate forming part of swivel for side piece
Inventor: WINKLER EMIL
IPC: G02C5/12
Filed: 1974-10-17
Abstract: The movable side member for spectacle frames is designed for speedy assembly and to meet more stringent demands than conventional constructions using screw fastenings. The flange plate (1) of plastic material has embedded in it a metal insert (2), which is in cross-section a U-shaped stamping with projecting axle journals (2 1V). The latter have discontinuous surfaces which fit into bearing apertures of the member framework. Pref., the U-shaped stamping narrows at the junction with the piece having projecting axle-journals, so that a springing action is obtainable during assembly.
Patent DE-2451193-A1 (DE)
Title: Agitation of electrolytic baths - esp for treatment of strip, e.g. aluminium foil for condensers
Inventor: LOCHMANN GUENTER DR
IPC: B01F11/00
Filed: 1974-10-28
Abstract: In a process for agitation of electrolyte baths for treatment of thin materials in strip form compressed air is introduced into a pipe in the bath and displaces the electrolyte in the pipe downwards into a second pipe connected to the first pipe and also immersed in the bath. The electrolyte is expelled from the second pipe through orifices in it below the liq. level in the bath. The air supply is cut off before the air reaches the lowest of the orifices in the second pipe and the air in the pipes is displaced by liq. as the press. is equalised to atmospheric. When the liq. in the first pipe reaches the same level as that in the bath the process is repeated. The process results in efficient agitation. The appts. is compact.
Patent DE-2502079-A1 (DE)
Title: Removal of sulphur dioxide from waste gases - by treatment with chalk slurry and giving gypsum as by prod.
Inventor: KONDO YOSHINOBU
IPC: B01D53/50
Filed: 1975-01-20
Abstract: Prior art removal of SO2 from off-gases by passing mixt. into an absorbent slurry contg. alkali earth cpd. is now modified by using a slurry contg. additionally an alkali metal sulphate. Alkali earth cpd. is CaCO3, Ca(OH)2, MgCO3, Mg(OH)2 or dolomite, and sulphate is Na2SO4, NaHSO4, K2SO4, or KHSO4 which can be prepd. in situ by adding NaOH or KOH to the absorbing slurry. Opt. additives are MnCl2 MnSO4, Mn(NO3)2, FeCl3, Fe2(SO4)2, Fe(NO3)3 and process can be multistage with stage 1 having pH is not >4.5 and oxidizing and stage 2 with pH >4.5. Efficiency of SO2 removal is increased by alkali metal sulphate and a lower conc. of alkali earth cpd. can be used. Effective oxidn. of SO2 to S(VI) in presence of Fe(III) or Mn(II) salts gives a gypsum byprod. of high purity.