baber/WOPTO huggingface dataset:
Patent WO-03060300-A1 (WO)
Title: Verfahren zur drehrichtungsumkehr bei zweitaktmotoren
Inventor: BEIL REINHARD
IPC: F02D41/04
Filed: 2003-01-08
Abstract: Das Verfahren dient zur Drehrichtungsumkehr eines Zweitaktmotors durch gezieltes Setzen einer Frühzündung beim Auslaufen. Um die Drehrichtung des Motors mit nur einem Sensor bestimmen zu können, wird vorgeschlagen, mit Hilfe eines Inkrementalgebers zyklische Schwankungen der Winkelgeschwindigkeit des Kurbeltriebes beim Auslaufen zu ermitteln und durch Zuordnung von Gebersegmenten eine Information über die Winkelstellung des Kurbeltriebes zu erlangen, die in Verbindung mit einer weiteren Stellungsinformation durch eine Lücke des Inkrementalgebers zur Bestimmung der Drehrichtung herangezogen wird. Ein hierzu geeigneter Sensor kann bei Kolbenmotoren auch unabhängig von dem Verfahren zur Bestimmung der Winkelstellung des Kurbeltriebes verwendet werden.
Patent DE-1808026-A1 (DE)
Title: Electro-welding burner
Inventor: KELLER DIPL-ING HORST
IPC: H01B9/00
Filed: 1968-11-09
Abstract: Shockproof connections for electric welding machines where connections for the supply of electric current, of a coolant and of a protective gas to a welding torch are combined, safety gainst electric shock can be ensured by mounting all connections on an insulating disc which is surrounded by an insulating cylindrical sleeve with a cut-out to give access to the nuts for the connections.
Patent DE-1808320-A1 (DE)
Title: Mixing apparatus
Inventor: STEFFNER HORST
IPC: B01F15/00
Filed: 1968-11-12
Abstract: Mixing tank particularly for effluents arriving at a sewage or effluent treatment plant, is subdivided in known manner into a series of annular zones by means of concentric partition walls, each zone being further divided into feed and discharge regions by a radial partition wall directly connected respectively to the feed and discharge pipes.
Patent DE-1918922-A1 (DE)
Title: Reduction of brittleness in steel at low - temperatures
Inventor: HORST BEHRENBECK DIPL-ING HANS
IPC: C21D9/50
Filed: 1969-04-15
Abstract: The steel is heated above AC3 to at least 130 degrees C and held there, and then cooled at a cooling speed of 0.5-2 degrees C/min. and mm thickness to a temp. of at least 20 degrees C above AC3. This temp. is held for at least 20 sec./mm thickness, and the steel then cooled quickly or in static air. Process relates to rolled steel slightly alloyed with nickel, molybdenum, vanadium and chromium.
Patent DE-1922845-A1 (DE)
Title: Isomerisation of alpha isopropylnaphthalene - to the beta isomer
Inventor: JONATHAN SCHARF EDWARD
IPC: C07C5/27
Filed: 1969-05-05
Abstract: The ratio of beta -isomer to alpha -isomer in a mixture of alpha -to beta -isopropylnaphthalene is increased by treating the mixture with at least 1% of a solid phosphoric acid catalyst, referred to wt. of the mixture, at is approx. 200-400 degrees C. Process may be performed batchwise at 350 degrees-400 degrees C, or continuously at 200 degrees-350 degrees C.
Patent DE-1925876-A1 (DE)
Title: Sintering finely particulate iron ores
Inventor: WERNER WENZEL DR-ING
IPC: C22B1/20
Filed: 1969-05-21
Abstract: Sintering process is a modification of the process described in DT P 19 20 219. The ore sludge is dried on a filtering appliance and converted in small crumb-like pieces into a good gas-permeable sintering mixture. The iron ore pellets are further treated, pref. by firing them on a sintering screen by sucking through hot gases. The size of the iron ore particles is pref. 10 - 20 mm.
Patent DE-1940479-A1 (DE)
Title: Pressure-sensitive adhesive
Inventor: BERGMEISTER EDUARD DR-ING
IPC: C09J131/02
Filed: 1969-08-08
Abstract: A pressure-sensitive adhesive in the form of a melt which can be applied to substrates contains as essential constituents copolymers of 35-65% by wt. vinyl acetate and 65-35% by wt. vinyl laurate with a K-value of 35-65 measured in acetone at 20 degrees C, and 2-10% by wt. referred towt. of copolymer of vinyl acetae and vinyl laurate, of waxes. Compsns. may also contain a polymeric plasticiser.
Patent DE-1949631-A1 (DE)
Title: Decorative plastic coating
Inventor: GEORG STOEGER DR
IPC: D21H17/49
Filed: 1969-10-01
Abstract: Coating composition containing synthetic resin-bound cellulose fibres with resin:fibre content at least 1:2 is obtained by impregnating carriers, such as paper with aminoplast pre-condensate solutions containing at least 50% organic, water-miscible solvent such as ethanol, propanol, acetone, dioxane and 20-50%. water. Referred to solvent total. Preferred material is solution of melamine- or urea resin in 60-80% ethylalcohol solution. Pre-condensates are hardened under pressure and heat.
Patent DE-2025733-A1 (DE)
Title: Polymern of polylactams - using monomer additive to prevent deposition on reactor walls
IPC: B29C48/05
Filed: 1970-05-20
Abstract: Polyamide (e.g. polycaprolactam) extrudates, are obtained by polymerisation of a molten mixture of the lactam with a polymerisation catalyst, esp. an alkaline catalyst, and an activator. The mixture of both melts is charged to a reactor and passed through while monomer is introduced through the porous walls of the reactor, in a minor amount sufficient to act as lubricant. The process prevents polymer formed from adhering to the reactor walls.
Patent DE-2027269-A1 (DE)
Title: Controlling molten glass flow rate - flowing from a single crucible
IPC: C03B7/08
Filed: 1970-06-03
Abstract: The loss of hydrostatic pressure in the crucible caused by the fall in the level of molten glass is compensated by introducing a control rod into the discharge pipe in the crucible floor. Spec. the glass stream is cut with shearing blades at the lower end of the discharge tube.
Patent DE-2028597-A1 (DE)
Title: Insecticidally-active dithiolan phosphates
IPC: C07F9/6553
Filed: 1970-06-10
Abstract: Insecticidally-active dithiolan phosphates. Cpds. have formula: (in which R is an alkyl gp. (C1-C4), an aryl gp. (subst. or unsubst.) and R1 and R2 either form a carbocyclic ring (C4-C6) or may be H atoms, alkyl gps. (C1-C4), subst. alkyl gps., cycloalkyl gps., alkenyl gps. (C2-C4) or aryl gps. (subst. or unsubst.)). They are prepd. from a 4-halogenomethyl 1-3 dithiolan (subst. in posn. 2 as in gen. formula for dithiolan-phosphates) by interaction with the ammonium salt of an O-O dialkyl (C1-C4) or O-O diaryl dithiophosphoric acid. These cpds. are insecticides and at pref. concn. of 500 ppm. very effective in destruction of house flies, aphids, bean flies, mites, red spider etc.
Patent DE-2044770-A1 (DE)
Title: Cutting foamed objects - esp to curved profiles using endless band machine with three pivot axes
IPC: B23D53/04
Filed: 1970-09-10
Abstract: Cutting machine for foamed objects, esp. for producing a curved profile cut, comprises a base frame supporting a sub-frame with an endless band cutter, pivoting about the cutting line; the object is held clamped in a second sub-frame pivoting about a vertical axis parallel to the first; the clamps on ends of pivoting arms are also rotatable about a third vertical axis parallel to the other two.
Patent DE-2055514-A1 (DE)
Title: Garment interfacing - with varying elasticity and coarseness in the shoulder, chest and hip regions
IPC: A41D27/06
Filed: 1970-11-11
Abstract: A single length of interfacing material is divided into areas of varying reinforcing quality by equipping the material with areas of varying fixing coats, differing in the method of application, different composition, consistency, and/or thickness of the coat applied.
Patent DE-2056992-A1 (DE)
Title: Loom - in which a pick is carried out pneumatically
IPC: D03D47/30
Filed: 1970-11-20
Abstract: The reed is carried on a pivotal support which also carries a number of parallel straight fingers. The fingers each pivotally support an inverted L-shaped arm which in the picking position are pushed by a stop to contact the fingers and form a closed channel and which in a beating position are spring biassed away from the fingers to open the channel. The weft is picked by air nozzles on the fingers to that it is enclosed within the channel, and as the pivotal support moves to beat the weft, the channel is opened allowing the weft to pass freely into the shed ready for beating. Sufficient compressed air can be supplied to correctly pick the weft without risk of the weft escaping from the shed.
Patent DE-2060223-A1 (DE)
Title: Concrete surface glazing - with flame gun applied glaze
IPC: C04B41/65
Filed: 1970-12-08
Abstract: The surface of concrete blocks is improved by the flame spray application of a silicate melt layer which forms a glaze on the relevant surface. In the prefd. method the surface is preheated by playing a gun flame over the surface to be sprayed. The process is cheap and simple and permits the coating of types of concrete which would not otherwise be coated, since they do not stand up to furnace heating.
Patent DE-2105137-A1 (DE)
Title: Carpet mfr - by a thermoplastic welding method
IPC: D04H1/548
Filed: 1971-02-04
Abstract: Strengthened carpet coverings for floors are produced from synthetic or natural material by subjecting the reverse side to heat treatment to weld the separate carpet yarn fibres together. The textile material may consist of a thermoplastic such as polyester, polyamide, polyurethane, polyalkylene, polyacrylate or polyacrylonitrile material. The method is suitable for floor coverings having a carrier for the textile fibres proper, as well as for those consisting of a flet layer without a carrier.
Patent DE-2122868-A1 (DE)
Title: Yarn crimping device - for crimping and setting yarns on heated perforated drum provided with peripherally spaced axial bars
IPC: D04H11/04
Filed: 1971-05-08
Abstract: Yarn crimping device forming part of carpet mfg. appts in which the crimped yarns are bonded to a backing is provided with a heated, perforated drum whose interior is connected to a suction source and whose exterior is provided with a peripheral array of axially extending bars which crimp and set the yarns.
Patent DE-2128223-A1 (DE)
Title: Conical yarn bobbin - with perforated and helically grooved winding surface providing good grip and preventing snagging
IPC: B65H75/26
Filed: 1971-06-07
Abstract: Conical yarn bobbin used in dyeing yarns has its yarn holding surface provided with an array of closely spaced staggered radial apertures and closely spaced fine, rounded helical or circular grooves.
Patent DE-2157623-A1 (DE)
Title: Foamed barium aluminate as catalyst carrier - with large pore vol and high strength
Inventor: VOGT WILHELM DIPL CHEM DR
IPC: C01F7/168
Filed: 1971-11-20
Abstract: Barium aluminate with composition n(BaO)mAl2O3 where n = 1-3, m = 1-6 and having a pore volume of 0.2-1.5 cm3./g. is made by kneading barium aluminate with 15-200 wt.% water or aq. soln. of Si or Ti cpds. and heating at 600-1500 degrees C. for up to 24 hrs. Compsn. esp. useful for absorbing radioactive and/or X-rays.
Patent DE-2207633-A1 (DE)
Title: Reagent tablets - with adhesive reagents as middle layer of 3-layer tablets
Inventor: HEINEMANN HELMUT DR RER NAT
IPC: A61K9/24
Filed: 1972-02-18
Abstract: Reagent tablets consisting of adhesive reaents and readily tablettable materials have adhesive reagents forming the middle layer and readily tablettable materials (e.g. NaCl, KCl, sodium benzoate or urea) forming the upper and lower layer of a three-layer tablet. The tablets are produced by compressing the adhesive reagents, opt. with the addn. of further adjuvants, between two layers of readily tablettable substances, pref. on a rotary tabletting machine with three filling and compressing stations. The middle reagent layer of the tablets is stabilised and protected against mechanical damage by the outer layers.
Patent DE-2225486-A1 (DE)
Title: Polystyrene sulphonate ion-exchangers - regenerated with sodium hydroxide and sodium chloride soln
Inventor: MONDINO ANGELO
IPC: B01J49/00
Filed: 1972-05-25
Abstract: Regeneration of polystyrene sulphonate ion-exchange resins, used for deacidification of protein hydrolysates, contg. aminoacids and histamine, is effected by (a) treatment with aq. basic soln contg. 0.5-2.5 (2) vol.% NaOH and 5-15 (8-12) vol.% NaCl; (b) conversion of resin to acid form by treatment with aq. HCl. Basic soln. is applied on resin by dropping at 0.6-1 l/hr. and 1 resin, using total of 1-1.5 l. soln./l. resin. A water-wash step may be introduced between (a) and (b). Pref. resin is treated with a 2 vol.% NaOH soln. and a 10 vol.% NaCl soln., using 1.3 l/l resin; then with 1.2 l/l resin of deionised water and finally with 1.3 l/l resin of 8 vol.% aq. HCl soln., at 0.6 l/hr. and 1 resin flow rate each time. Regenerated resins can be used for preparing injection solns. from liver and fish meal hydrolysates.
Patent DE-2231187-A1 (DE)
Title: Epoxy resin coat - as corrosion guard for heavy duty anchor and conveyor chains
Inventor: CLARUS CARL
IPC: B05D1/06
Filed: 1972-06-26
Abstract: The coating is esp. for round link chains exposed to high alternating loads and corrosive conditions, in which a synthetic resin coating is electrostatically applied as a dry powder onto the chain links then fused on at a high temp. Pref. the material is an 80-100 mu m thick layer of epoxy resin.
Patent DE-2318233-A1 (DE)
Title: Refrigerating circuit expansion valve - providing constant pressure drop independently of inlet pressure
Inventor: POLAK VILEM
IPC: F25B41/06
Filed: 1973-04-11
Abstract: In an appts. for maintaining constant pressure difference between the upstream and downstream sides of the expansion valve of a refrigeration unit, the expansion valve has a flow cross-section corresp. to the minimum pressure difference, while incorporated in the circuit downstream of this valve is a differential valve which comprises a pressure member, esp. a piston, and a spring supporting this pressure member; the pressure in a branch chamber acts on the pressure member or piston, the branch chamber being connected by a pipe to the feed line on the upstream side of the expansion valve. As the pressure on the upstream side increases, it acts upon the spring-loaded piston causing a throttling action in the differential valve on the downstream side of the expansion valve.
Patent DE-2332312-A1 (DE)
Title: Press bale strap with slit ends - ends form stays and locking steps between top and bottom mating ends
Inventor: HILL GUENTER
IPC: B65D63/04
Filed: 1973-06-26
Abstract: Press-bale strap has end incisions to form stays which are bent opposite ways and lie in sequence along the strap and can be joined as between top and bottom strap ends so as to form a closure for tightening the strap round the bale as the stays overlap and lock together at the corners. Each incision has a sector running along the strap to go over into a sector at an angle to the strap and so into a further sector once again running along the strap. This forms a locking step together with the relatively longer locking step in the lower end of the strap. The stays in the upper strap end are arched more steeply out of the strap plane than those in the underneath end to allow the two sets of stays to lock firmly together in closure and prevent unwanted release of the bale contents.
Patent DE-2338438-A1 (DE)
Inventor: HAWKES GEORGE LESLIE DR
IPC: C01B21/46
Filed: 1973-07-28
Abstract: High-strength nitric acid contaminated by nitration products is introduced into from 80 to 100 per cent by weight strength sulphuric acid having a temperature of 200 to 300 DEG C. At the same time, the sulphuric acid is admixed with sulphuric acid containing nitrogen oxides or a nitrosyl compound. The organic components contained in the nitric acid are oxidised into water, carbon dioxide and/or carbon monoxide. The distillate obtained is a nitric acid which is free of organic components and which can again be processed to give high-strength nitric acid.
Patent DE-2339172-A1 (DE)
Title: Coin appts. with one or more working ccts. - for control of consumers in connected vending machine
IPC: G07F5/24
Filed: 1973-08-02
Abstract: Each working circuit is switched by its own output stage controlled by a counting unit in the coin apparatus and contained in the latter. A flow monitor is connected in series to each lead between the output stage in the coin apparatus and the consumer in the vending machine. In the event of excitation by the current flow, the monitor notifies this fact to the control circuit to the coin apparatus. The monitor consists of a realy which pulls up on the closure of the working circuit at the same time as the consumer in the vending machine and which notifies by means of its contacts the current flow to the control circuit.
Patent DE-2340955-A1 (DE)
Title: Key operated mouth organ - is actuated by freely visible voice box through levers and valves
Inventor: VOSS HANS
IPC: G10D7/12
Filed: 1973-08-13
Abstract: A mouth organ actuated by keys can be produced more cheaply because the sound box is mounted freely visible within a bracket so that the cavity is saved. It can readily be exchanged by a conventional mouth organ. A rubber membrane closes the blowing space. The key valves are leather-coated and can be operated by key levers with a pivot in a bridge. The instrument can be played in a two-handed fashion.
Patent DE-2342798-A1 (DE)
Title: Boring tool of tapered anchoring holes - in which the larger diameter is at the bottom
Inventor: SCHAEFERS HEINRICH
IPC: B23B51/00
Filed: 1973-08-24
Abstract: The boring tool consists of a mandrel which has a hollow split end. The end of the split mandrel forms a boring tool. A tapered shaft with boring edges at the end is mounted in the end of the hollow mandrel and secured in position by a screw. The depth of the tapered hole to be drilled can be adjusted by adjusting the amount the screw is screwed into the mandrel. During drilling, the cutter on the tapered part enters the material first. The split mandrel with cutting edges then slides over the tapered shaft and drills a hole of increasing diameter.
Patent DE-2343230-A1 (DE)
Title: Automatic bottle crate cleaning machine - has intermittent crate conveyor and sectioned rotating wash drums
Inventor: SCHOLZ HERBERT
IPC: B08B9/08
Filed: 1973-08-28
Abstract: The design is intended to reduce overall space requirements while providing a high volume of throughput with efficient cleansing. The creates which can be arranged in groups are moved intermittently along a slide by an overhead endless conveyor with downward projecting arms. The crates are moved into a drum consisting of several separate sections. The sections are mounted on a common axis lying in the transport direction and rotating in a transverse direction. The sections have an inner structure consisting of three convex crate supports which together have a trochoidal cross section about the axis. The outer drum wall is formed by panels with slots to allow the passage of the conveyor arms. Partitions are fitted between the drum sections to separate the cleaning stages consisting of baths and/or cleansing sprays.
Patent DE-2346089-A1 (DE)
Title: Lead coating metal tube and wire - by passing the tube through a lead press contg. an extrusion die
Inventor: REINERT MAX
IPC: B21C23/26
Filed: 1973-09-13
Abstract: A lead jacket is put onto metal shapes which are harder than Pb, esp. tubes and wires. The metal-coated shape is wetted with a flux which leaves no residue on evapn. and then heated to 120-240 degrees C after which the Pb jacket is pressed round the profile at 180-280 degrees C (pref. 200-240 degrees C). The metal substrate is pref. heated in a protective atmos. in which it remains until being coated with Pb, and the substrate can be pre-coated with Sn or Pb prior to being given a Pb-jacket. The pref. equipment for the process consists of a press with an extrusion die for the Pb and a pre-heating chamber for the tube or wire using inert gas, plus a flux bath and felt disc for applying the flux. Provides a corrosion-resistant Pb coating suitable e.g. in atmos. contg. H2SO4, with a metallic bond being formed between the Pb and the metal substrate.
Patent DE-2349300-A1 (DE)
Title: Conveying furniture-hinges to assembly-machines - using a moulding with holes for receiving hinge-projections
Inventor: LAUTENSCHLAEGER JUN KARL
IPC: B27M3/00
Filed: 1973-10-01
Abstract: The device is a moulding, pref. mfd. from Styropor, with holes arranged in longitudinal direction. The holes are of such shape and size that the other projections of the hinges can be inserted into them for temporary support and be freely withdrawn. The device offers a simplification of the filling of the magazine rails.
Patent DE-2355179-A1 (DE)
Title: Thermoformable textile product - with thermoformable, thermoplastic resin layer, and elastic layer of thermostable resin
Inventor: WITTE JOSEPH ALBERT GEORGES DE
IPC: D04B1/14
Filed: 1973-11-05
Abstract: Thermomouldable textile pdt. esp. for seating e.g. in automobiles, has two layers, layer I being a thermoformable layer of a thermoplastic resin forming one face, and layer II being an elastic layer produced from a thread of non-thermoplastic resin forming the other face and elastically following the deformations of layer I without altering the characteristics of the thread. Article can be permanently thermomoulded to a desired shape, while maintaining the desirable textile props. and strength of the exterior textile layer.
Patent DE-2363985-A1 (DE)
Title: Joining optical waveguides, e.g. glass fibres - using liquid filled capillary tube, which aligns fibres due to its viscosity
Inventor: POHL KURT
IPC: G02B6/38
Filed: 1973-12-21
Abstract: Optical waveguides, e.g. glass fibres, are joined to each other or to appts. such as transmitters, amplifiers, receivers, etc., using a splicing bush or tube made of metal, plastic or glass, the bore of the tube having a larger dia. than the outer diameters of the fibres being joined together. The bore of the splicing tube is filled with an immersion liq. having a viscosity such that when the fibres are inserted in the tube they are centered w.r.t. each other, i.e. the two fibres are on a common axis so that the cores of both are properly aligned.
Patent DE-2411664-A1 (DE)
Title: Multi-purpose hot air food processing appliance - has electric controls at top supplying hot air to food below
Inventor: VOGT HANS DR
IPC: A47J39/00
Filed: 1974-03-12
Abstract: The hot air food processing apparatus comprises an insulated preserving chamber which is accessible from the side and the requisite electrical control mechanism etc. which are attached to the lid of the chamber. A pan for the food which is to be processed is provided at the bottom of the chamber so that the hot air can flow down from above onto the food and the fat and juices from the food can drip down into a collecting tray without contacting the electrical mechanisms etc. A rotating wire basket for items such as chips, toast etc. can be mounted between the controls at the top of the chamber and the base pan at the bottom, the latter being designed to be removed from the front of the chamber.
Patent DE-2414285-A1 (DE)
Title: Phase detector for digital signals - reference and feedback frequency signals are summed in flip-flop
Inventor: WENTZEL PETER DIPL ING
IPC: H03D13/00
Filed: 1974-03-25
Abstract: A phase detector circuit operates to close the loop around a voltage controlled oscillator so that the operating frequency is maintained constant and in agreement with a reference frequency signal. A main control stage consists of a flip-flop conditioned by a reference input frequency of square wave form and a feedback frequency from the oscillator output. The duty cycle of the flip-flop outputs is dependent upon the phase difference. The outputs are fed to power stages that operate gates coupled to and output line that contains an integrating circuit. The variable pulse width output is integrated to provide an output proportional to phase difference over a range of (+-) 180 deg. A second control circuit flip-flop provides compensation in the event that a reference pulse is dropped.