baber/WOPTO huggingface dataset:
Patent DE-2013042-A1 (DE)
Title: Felt and shrink proofing wool and wool blend - contg polyurethanes and
IPC: D06M15/564
Filed: 1970-03-19
Abstract: Felt- and shrink-proofing wool and wool blends with isocyanate-contg. polyurethanes and water. Before, during or after treatment in organic solvents with isocyanate group-contg. reaction products, prepd. from cpds. of 500-6000 mol. wt. contg. at least 2 OH gps. and polyisocyanates, water as steam or mist is applied to wool or wool blends in 1-20% amounts based on weight of goods under normal air-conditioning. Materials may be steamed in a tumbler before treatment with isocyanate group-contg. products (A); or wetted through in a solvent drum machine by spraying in steam or mist; or water is applied before or together with (A) as finely divided water-in-solvent dispersion in presence of emulsifiers; or water is applied together with (A) soln. in presence of emulsifiers. Pref. emulsifiers are usual strengtheners for cleaning, and pref. 2-10% water is applied to goods.
Patent DE-2031905-A1 (DE)
Title: Leakage prevention from grounded oil tank- - ers
IPC: B63B43/00
Filed: 1970-06-27
Abstract: Vacuum is maintained in the oil tanks so that the pressure in one oil tank and the column of oil above the water line together correspond to, at most, atmospheric pressure. Apparatus is described.
Patent DE-2112127-A1 (DE)
Title: Iodine recovery from gas mixtures - by reduction of elemental iodine to ammonium iodide and quenching with water
Inventor: PLATZ ROLF DR
IPC: C01C1/16
Filed: 1971-03-13
Abstract: Gas mixture, pref. resulting from the burning of alkyl iodides in an oxide hydrogenation process and contg. iodine vapour and a 10-20 fold molar excess of NH3 as a reducing agent (and opt. a 10-20 fold molar excess of O2 w.r.t. iodine) is heated at 300-1000 degrees C. and then quenched with water at >70 degrees C.
Patent DE-2124218-A1 (DE)
Title: Amino-/phenolic resin double impregnated paper - with intermediate compatible polymer layer, for high gloss finish
IPC: D06N7/06
Filed: 1971-05-15
Abstract: Carrier sheets impregnated with curable amino- or pheno-plastics resins for improving the surface of wooden materials are produced by the double impregnation process, a coating of 3-20, pref. 5-10 g/m2 macromolecular substance, which is compatible with the cured resin, being applied after the first impregnation. This gives improved economy, since a high gloss surface can be produced without recooling under pressure when the sheet is bonded to the wood. The macromolecular substance has gps. which react with the resin, pref. amino or OH gps., suitable materials being polysaccharides, e.g. (carboxy)methylcellulose polyamides and albumins, e.g. casein, polyoxyethylene and PVA.
Patent DE-2200604-A1 (DE)
Title: Paper treatment pencil - applied after ink removal with dithionite contains citric and/or tartaric acid in wax binder
Inventor: EICKENBERG HANS
IPC: C09D10/00
Filed: 1972-01-07
Abstract: The pencil contains (1) 50-85 wt.% wax binder of m.pt. 50-85 degrees C and comprising paraffin, ceresin, stearin, natural waxes or mixts. of these and (2) 15-50 wt.% finely divided citric and/or tartaric acid embedded in (1). The treated paper can be written on again with the same ink without decolourisation. The pencil is non-toxic and can be combined with a dithionite applicator.
Patent DE-2225424-A1 (DE)
Title: Multilayer gallium arsenide semiconductor - for laser diode
Inventor: RIEMANN VOLKER DIPL PHYS
IPC: C30B19/04
Filed: 1972-05-25
Abstract: Prodn. of a semiconductor diode contg. a series of epitaxially formed layers of n-GaAs - n - GaHAs - GaAs - p - GaHAs - p - GaAs is improved by forming a supernumerary layer, pref. GaAlAs, and finally etching it away, pref. with hydrochloric acid. By this method, the formation of the p - GaAs layer which must be very thin (0.005 mm) is facilitated, compared with the conventional method of allowing it to grow thicker and then grinding to the required thickness.
Patent DE-2310623-A1 (DE)
Title: Phosphoramidic dihalides prepn. - by two-stage reaction of amines and phosphorus oxyhalides
Inventor: BRANDEIS JOHANN DR
IPC: C07F9/6533
Filed: 1973-03-02
Abstract: Cpds. of formula (I): R1R2NPO(X)2 (where R1 and R2 are (cyclo)aliphatic, araliphatic or aromatic gps., or R2 is H, or NR1R2 is a heterocycle; X is halogen) are prepd. by reacting R1R2NH (II) with PO(X)3 in the presence of =5 wt.% inert org. solvent, based on (II), in a 1st stage at 70 degrees C and in a 2nd stage at >70 degrees C. High yields (e.g. 70-90%) are obtd. (I) are inters for yes, plant-protection agents and flameproofing agents.
Patent DE-2313902-A1 (DE)
Title: Continuous belt press for woods - with adjustable tensioners for the opposing chain belts
Inventor: TROUTNER ARTHUR L
IPC: B27N3/24
Filed: 1973-03-20
Abstract: Designed as a continuous press for applying heat and pressure charges of layers of wood coated with adhesive, for the manufacture of plywood or chipboard, tensioners are located along the pressing zone with two cross tensioning units for each tensioner station, and an adjustment screw to determine the gap between the opposing belts at each tensioning point, while a heater controls the operating temp. for activating the adhesive while under pressure. The press is lightweight and can be used for a variety of woods and adhesives, in a trouble-free and maintenance free unit.
Patent DE-2327867-A1 (DE)
Title: Mono- and dihalo-1-methyl-3-phenylindanes - by reacting mixture of styrene and halostyrene in presence of concentrated phosphoric acid
Inventor: SCHECKER HANS-GEORG DR
IPC: C07C17/281
Filed: 1973-06-01
Abstract: 1-Methyl-3-halophenylindanes of formula (I) useful as intermediates for the prepn. of dyes and parasiticides, and dihalo-1-methyl-3-phenylindanes of formula (II), are prepd. by reacting a mixt. of a styrene of formula (II), are prepd. halostyrene of formula (IV) in the presence of phosphoric acid having a concn. of >=75% and opt. of org. cpds. absorbing light between 2000 and 8000 A, or by a similar reaction using halostyrenes of formula (IV) as starting materials. (where R1, R2 and R3 are each H, or alkyl, and R4 is halogen) (I) and (II) are given in good yields and method is commercially possible.
Patent DE-2343688-A1 (DE)
Title: Load, mix and discharge assembly for a malting vessel - rotating, radially-displaceable mixing worms lift clear during drying
Inventor: KOENIG GERD DIPL-ING
IPC: C12C1/15
Filed: 1973-08-30
Abstract: A loading, turning and discharging assembly for a cylindrical malting vessel includes vertical mixing worms carried by a horizontal beam rotating round the central shaft of the vessel, together with a horizontal spreader worm. The mixing worms are smaller in dia. than the radius of the vessel, are spaced out at a pitch equal to their dias., are displaceable to and fro radially and parallel to the central shaft, and can also be moved vertically clear of the malt for drying. Centrally to the kiln bottom a tube can also be raised and lowered. Its inlet forming the discharge hopper, is covered in the uppermost position by a container from which water is sprinkled on the malting via a manifold. The assembly ensures careful treatment of the goods and a uniform quality in the product. Plant is simple to maintain and economical in energy.
Patent DE-2346014-A1 (DE)
Title: Combined bath, bed and nappy-changing unit for babies - is made from flat, flexible material with fold-up sides to support removable bath
IPC: A47D11/00
Filed: 1973-09-12
Abstract: The nappy-changing base, which is made from two layers of thermoplastics high-frequency welded foils, can be converted into a cot by folding up the sides which are designed to fit into each other, and in this position a bath made from a flexible thermoplastics foil can be suspended from the sides by battens incorporated in the sides of the bath to rest on the top of the cot. The double-layered 'mattress' can be filled with air or other suitable padding whilst ventilation openings are provided to ensure the safety of the sleeping child, whilst also serving for the attachment of safety belts.
Patent DE-2348744-A1 (DE)
Title: Water-to-cement ratio detector for fresh concrete - uses centrifugal ejection process with addition of rinsing water
Inventor: RUNKEL ADOLF
IPC: G01N33/38
Filed: 1973-09-28
Abstract: The mixture consisting of water and cement is ejected from a sample of fresh concrete mortar by means of a centrifuge. During the centrifugal process, a specific quantity of rinsing water is added to the fresh concrete mortar. The additional quantity of rinsing water is then deducted from the ejected mixture of water and cement. Using fractionated centrifugal process, the mixture of water and cement is decomposed into its parts of water and cement. During the preparation of concrete mortar, reliable information on the strength of the concrete is obtained quickly and relatively simply. Any defects in the concrete are immediately detected.
Patent DE-2351213-A1 (DE)
Title: Sealing-lining of bitumen-impregnated plastics mat - for water and oil stor-age and circulation works, is thin, soft, seamless, non shrink, crack free and insen-sitive to temp
Inventor: LASSALLE JACQUES
IPC: E02B3/12
Filed: 1973-10-12
Abstract: The linng consists of a non-woven plastics material (I), such as felt, in mat form impregnated with a binder (II) contg. hydrocarbon. This does not need a bed of sand and is resistant to tensile stress and all influences to which it is subject during construction and use, e.g., in reservoirs, dams, canals, dikes etc. (I) pref. consists of a rot proof polyester or polypropylene felt with a wt. of 100-600 g/m2, which is resistant to chemicals, whilst (II) is a blown, oxidised or directly distilled bitumen, coal distn. prod., pure tar, mixt. of wood tar and oils or mixt. of these with natural or synthetic resins or elastomers.
Patent DE-2351314-A1 (DE)
Title: Interlocking plastic hulled pontoons - with upper and lower pontoons joined by interlocking profiles between conical float projections
Inventor: PROEDEL ULRICH
IPC: B63B35/38
Filed: 1973-10-12
Abstract: Upper and lower pontoon sections are made from plastic hulled structures with the lower sections having conical extensions on the upper surface which locate in conical holes in the lower surface of the upper sections. The pontoons are then assembled by using the lower sections to bridge the gaps between the upper sections. The tops of the cones, and the tops of the holes are threaded to take securing bolts to provide a rigid structure. The sections are made in modular form to assemble into any selected structure with mooring points and landing ramps etc. The cones provide a self centering design and the bolt holes can be used to partially water ballast each section to trim the structure.
Patent DE-2407693-A1 (DE)
Title: Thin film resistors of titanium-nickel alloys - made by vacuum deposition and with adjustable temp coefft of resistance
Inventor: HIEBER KONRAD DR RER NAT
IPC: H01L21/70
Filed: 1974-02-18
Abstract: In the mfr. of thin film networks which includes electrical circuits contg. resistors, the resistors are obtd. by the vapour deposition of a Ti-Ni alloy. The pref. alloy contains25-85 atom % of Ti, vapour-deposited at a rate of 1-2 nm/sec. in a vacuum of 10-5 torr, pref. using the flash process(use of a high current to evaporate the material being deposited). The thin film circuit thus produced is pref. tempered for one hour at 200 degrees C in a vacuum of 10-5 torr. Resistors with a temp. coefft. of resistance of 0 to -500 ppm/ degrees K. are mfd. Method avoids the need to use sputtered tantalum nitride which is expensive; the appts. used for mfg. Ni-Cr resistors can be used for this process and the alloys contg. >60 atom.% Ni can be soldered.
Patent DE-2415121-A1 (DE)
Title: Forming tool, esp. for squeezing hollow rivets - using balls or rolls to deform outside dia. of rivet or other part
Inventor: FULIER JOZEF
IPC: B23P11/00
Filed: 1974-03-28
Abstract: A device for shaping the walls of hollow metal parts has >=2 roll components symmetrically located in holes in a carrier bush; the outer surface of the roll components being in contact with a pressure element. The roll components may be spheres or cylindrical rollers, whereas the pressure element is pref. a bush with a spring working in opposition to its forward motion; alternatively, the pressure element may consist of rotating rollers.
Patent DE-2415197-A1 (DE)
Title: Recovery of para amino benzoic acid from synthesis solns - obtd by catalytic hydrogenation of para nitro benzoic acid by pptn with cold water
Inventor: BILOW ALBRECHT DIPL CHEM DR
Filed: 1974-03-29
Abstract: p-Aminobenzoic acid (I) is recovered from solns. contg. (I) obtd. by catalytic hydrogenation of p-nitrobenzoic acid, by running the soln. into water to cause cold pptn. of (I) which is then recovered from the liq. phase. Aq. mother liquor can be recovered and re-used as pptn. agent for the next charge; the amt. effluent water contg. org. solvent produced is small; and the process uses only small amts. of decolourising agents such as active charcoal.
Patent DE-2440634-A1 (DE)
Title: 2-Oxo-1-pyrrolidineacetamide - prepd. by reducing 2-oxo-1-pyrrolidineacetohydrazide cpds
Inventor: LANGE FRITZ-WALTER
IPC: C07D207/26
Filed: 1974-08-24
Abstract: 2-Oxo-1-pyrrolidineacetamide (piracetam) (I) is prepd. by reducing a hydrazide of formula (II) (where R1 is H or 2-oxo-1-pyrrolidineacetyl) or a mixt. of these hydrazides. (I) is a known agent against travel sickness, for the treatment of senile involution and for promoting learning capacity. Simple process giving better yields than reaction of ethyl 2-oxo-1-pyrrolidineacetate with ammonia. Solvent amts. required are small, and (I) is obtd. in highly pure form.
Patent DE-2440947-A1 (DE)
Title: Temperature variations regulated reference element - zener diode transistor, resistances network temperature compensated
Inventor: SCHWARZ GUENTHER
IPC: G05F1/567
Filed: 1974-08-27
Abstract: Regulator control reference elements in the form of a zener diode usually required for temperature variation compensation a costly, time consuming, setting up of an oppositely affected semiconductor. A transistorised resistance network is proposed for this compensation, enabling temperature effects of other circuit components also to be dealt with. The diode is in the emitter-collector path of a transistor. The transistor base connects with the junction point of a resistance voltages divider. The resistances voltage divider has a series resistance and two resistances in parallel, and of the latter one is much larger than the other.
Patent DE-2442128-A1 (DE)
Title: Component leads cutting and bending device - has tongs operated by handle or foot, pneumatically or by electromagnet
Inventor: KAGER ALFRED
IPC: H05K13/02
Filed: 1974-09-03
Abstract: A new arrangement for the cutting and bending of component leads for mounting on circuit boards. Tongs can be operated by handle, a foot press using air pressure up to ten bar, or as mains operated electro-magnet. The tongs are fixed or portable, and bending or cutting inserts can be attached to their working ends for cutting the component leads to a standard length. They are placed on the circuit board soldering side. The jaws are screwed to the tongs ends. Their heads can be exchanged for other attachment. A stationary unit can be converted into a portable unit by an additional piston.
Patent DE-2443556-A1 (DE)
Title: Bending apparatus for elongate glass bodies - heated glass bent by rotating shaft with cam adjustment
IPC: C03B23/06
Filed: 1974-09-11
Abstract: The glass (tube or rod) is advanced past a heater and engaged by a clamp connected to a shaft mounted in a carriage which is displaceable towards and away from the heater. the shaft is rotated on an axis normal to this displacement and to the axis of the glass. When the glass is locally softened by the heater the clamp is rotated by the shaft and the glass is advanced and bent continuously in an arc the radius of which is varied by displacement of the carriage and shaft by a cam and cam follower one of which is rotatable by the shaft. Glass tube or rod is bent into a coil of predetermined confign. without using a former or mandrel in a simple machine.
Patent DE-2444198-A1 (DE)
Title: Pressure vessel cold stretching - at slightly above calculated stretching pressure and reducing to latter for desired creep rate
Inventor: JOHANSSON INGVAR
IPC: B21D1/08
Filed: 1974-09-16
Abstract: A pressure vessel made of austenitic stainless steel is cold stretched by effecting, at a temp. below that of recrystallisation of the material, a permanent elongation through applying an internal hydraulic pressure. This pressure first exceeds the calculated cold stretching pressure by a few per cent. The pressure is reduced to the calculated figure, and the creep rate is measured and checked for reduction to the prescribed figure. The time required to reduce the creep rate to a desired 0.1% per hour, for example, would be reduced from an otherwise necessary 15-20 hrs. for a large cellulose digester to an acceptable figure of 2-3 hrs.
Patent DE-2446981-A1 (DE)
Title: Bidirectional transport mechanism for business documents - with separate document transporting rollers for the two directions
Inventor: KRULL JOACHIM ING GRAD
IPC: G06K13/05
Filed: 1974-10-02
Abstract: The mechanism has a drive roller (2) fixed to the machine frame and two transporting rollers (6, 7) mounted on opposite ends of a pivoted arm (4). The three rollers are linked by a driving member, e.g. a flexible belt or spring (3) so that when the drive roller to rotates in one direction one of the transporting rollers is displaced towards a pressure roller (6a) on the other side of the document being transported. When the drive roller rotates in the other direction the other transporting roller is displaced towards a second pressure roller (7a). The centrally pivoted arm retains its last position when the drive roller stops rotating.
Patent DE-2456812-A1 (DE)
Title: Measurement system for instantaneous values of periodic waveforms - includes synchronised digital control
Inventor: SANNER LOTHAR
IPC: G01R29/00
Filed: 1974-11-30
Abstract: The instantaneous value of a periodic waveform can be indicate}d on a digital voltmeter and a graphical representation of signal and control pulses shown on a double-beam oscilloscope. A synchronisation pulse derived either from the input waveform or a separate reference oscillator passes to two NAND gates and a differentiating capacitor. This operates a monostable circuit whose toggle frequency is adjustable. The monostable's output is processed by two NANd gates and a timing network and the resulting pulse triggers a switching circuit. A field effect transistor has its gate connected to this switching circuit and its drain electrode connected to the waveform under investigation. Its output drives a digital voltmeter which, during the presence of a synchronisation pulse, shows the instantaneous value of the input waveform.
Patent DE-2459149-A1 (DE)
Title: Resorcinol prepn. by hydrolysis of m-phenylenediamine - using excess of ammonium bisulphate, giving high prod. yield
Inventor: GRECO NICHOLAS PAUL
IPC: C07C39/08
Filed: 1974-12-14
Abstract: Resorcinol (I) is prepd. by (a) contacting m-phenylenediamine (II) with NH4HSO4 in an aq. soln. contg. 4-12 moles NH4HSO4 per mole (II) and 40-120 moles water per mole (II) at 200-300 degrees C for 1/2 to 8 hr. to hydrolyse (II); (b) cooling the mixt; and (c) extracting (I) from the soln. with a water-immiscible org. solvent. The process results in high yields, and with little or no resinficiation of the prod.
Patent DE-2500244-A1 (DE)
Title: Wire components chain driven bending press - has flanged bearing sleeve for cam shaft location
Inventor: KATZ WOLFGANG
IPC: B21D22/00
Filed: 1975-01-04
Abstract: A bending press has a cam shaft (5) driven by a chain drive (3, 4). The shaft is located inside a flanged sleeve (2). The cylindrical outside end of sleeve (2) is located in a bore in the press frame (8). The flanged sleeve end carries the mounting plate (1) to which it is secured by fixing screws. At the inner cam shaft end, the chain wheel is attached whilst the cam (6) is located on its outer end. The press head (7) is operated via a roller follower running against the cam (6) surface. The drive is separate from the press frame so that vibrations are not transmitted either way.
Patent DE-2501986-A1 (DE)
Title: Temperature control unit - for injection moulding machine
Inventor: KOCH WERNER
IPC: B29C45/17
Filed: 1975-01-18
Abstract: A temp. control unit for an injection moulding machine with a chassis for pulp storage vessel and heat controller, of the storage vessel (also bolted to the chassis base) and a side wall of the chassis and is connected with both by screw couplings, while the elbow fittings of the outflow, in-flow and return flow pass through the cover of the storage vessel and together with a front plate screwed to a chassis wall and carrying the electrical circuit components, are arranged with an angle and hood. Provides a temp. control assembly with easily mounted pump, storage vessels and circuit components e.g. cooling and/or heating coils.
Patent DE-2502885-A1 (DE)
Title: Aluminium pistons for internal combustion engines - with thermal insulation on head to improve exhaust gas compsn on starting
Inventor: ECKERT ROLF DIPL ING
IPC: B22C3/00
Filed: 1975-01-24
Abstract: A light alloy piston for an internal combustion engine, where the surface of the piston facing the combustion chamber is provided with a layer of thermal insulation, the novelty being that prior to mfr. a layer contg. silicon is applied to the surface of the mould or die used for casting or pressing the piston. The silicon is pref. mixed with the coating which is applied to the wall of the mould or die to prevent the cast or pressed component from adhering to that wall. The prodn. of an exhaust gas compsn. which is less noxious due to the lower amt. of hydrocarbons. Hypereutectic silicon-aluminium alloys have a lower thermal conductivity than eutectic alloys so that during a cold start and warming up the surface coated with Si heats rapidly and better combustion conditions are more quickly established.
Patent DE-2507302-A1 (DE)
Title: Open hearth for grilling etc with hollow upright stand - has suitably perforated ash box allowing passage of air and complete ash collection
Inventor: BECKER HORST
IPC: A47J37/07
Filed: 1975-02-20
Abstract: The open hearth designed for roasting or grilling etc., comprises a hollow tubular stand (2) which supports a table-top (16) and a removable fuel grid (11) mounted above the ash box (12). The hollow cavity of the stand (2) is designed as an upright air supply duct (6) and connects the fresh air supply pipe (7) to the hearth area to ensure an adequate air supply to prevent smoke being formed. The ash box (12) mounted in the air supply duct (6) is provided in the upper part of its side walls with air orifices (15) to allow the air to pass through to the fuel grid above. The ash formed from the burning fuel falls into the lower part of the ash box (12) which does not contain the air orifices, and not into the air supply duct. The grill rack (17) is placed above the fuel rack (11) and on removing these two racks the ash box can be lifted out for emptying.
Patent DE-2507483-A1 (DE)
Title: Saddle supporting collapsible hinged horizontal arm - has bent section for retaining saddle and diagonal stiffening arm
Inventor: BACH ARMIN
IPC: B68C1/00
Filed: 1975-02-21
Abstract: The saddle support has a horizontal arm for supporting a saddle as well as straps and bridles. This saddle support is collapsed on the stable wall, when not in use, in order to save space. The horizontal arm (1) can be folded downwards into a vertical position. This arm is hinged on the top end of a vertical arm and the diagonal stiffener (3), hinged on the vertical arm, engages with a bent section (1b) on a horizontal member forming a pocket for the stiffener and a step preventing sliding.