baber/WOPTO huggingface dataset:
Patent DE-2144419-A1 (DE)
Title: Electrolytic phthalide prodn - by cathodic redn of aq ammonium phthalamate
Inventor: BECK FRITZ DR
IPC: C25B3/25
Filed: 1971-09-04
Abstract: Phthalide (I) is prepd. by the cathodic redn. of an aq. soln of NH4 phthalamate (II), pref. contg. 1-35 wt % (II) and 10-50 wt.% of a water-soluble org. solvent at =65, pref. 30-50 degrees C, on a metal with a hydrogen overvoltage greater than that of Cu, pref. high purity, (>99.9%) Pb. Conversions of 80-98% can be achieved. (I) is an inter. for anthraquinone dyes, plant protection agents and phthalimidine, is a plasticiser for guncotton and is a vermifuge.
Patent DE-2213935-A1 (DE)
Title: Thermally conductive catalysts - on metal carriers for improved temp control and yield
IPC: B01J37/00
Filed: 1972-03-22
Abstract: The active catalysts forms an integral part of a thermally conductive catalysts structure, or is in thermally conductive combination with it. The active catalyst is pref. a Pt gp. metal or one of their alloys, Au or any alloy, Ni or a Ni-Cr alloy and the carrier is pref. a base metal e.g., steel, Cu etc. The carrier may form part of a heat exchanger system through which heat can be conveyed to or removed from the catalyst. The catalysts are suitable for use in e.g., the highly exothermic oxidn. of methanol of HCHO using Ag powder catalyst, exothermic oxidn. of NH2 to NO for HNO3 mfr. using pt deposited on a heat exchanger supplied with coolant, and catalytic oxidn. of exhaust gases. Catalyst temps. can be more closely controlled and yield improved, and a more robust catalyst with increased resistance to vibration, etc., is obtained.
Patent DE-2233932-A1 (DE)
Title: Shock absorber - for welded strip rolling mill with gas cushion and sliding disc
Inventor: BOESE MANFRED
IPC: B21B37/00
Filed: 1972-07-11
Abstract: A shock absorber for the screwdown device of a rolling mill stand for steel strip comes into action when welded joints pass through the roll gap. A gas cushion is provided inside the hollow screwdown piston; it is sepd. from the hydraulic fluid under this piston by a sliding disc. This moves upwards when a welded seam approaches and allows the hydraulic fluid to be displaced through a large aperture into the hollow piston.
Patent DE-2250493-A1 (DE)
Title: 1,2,3,4,10 10a-hexahydropyrazino (1,2-a) indole-2-carboxamidines - - hypotensives
Inventor: JONAS ROCHUS
Filed: 1972-10-14
Abstract: Title compds. are of formula (I) where R = H or MeO and X = H or -C(=NH)NH2 and salts of I. I(X=H) are prepd. e.g. by reducing more unsatd. analogues, and are inters. for the hypotensive I(X=C(NH)NH2). The latter are prepd. (a) by chemical redn. of more unsatd. analogues or (b) by condensing I(X=H) with NR1=CR2NH2 where R1 = H and R2 = Oalkyl S-alkyl. 3,5-dialkyl, 1-pyrazolyl, or NC-NH- or R1+R2 = a C-N bond.
Patent DE-2255029-A1 (DE)
Title: Sulphur dioxide removal from tail gas in contact process - for sulphuric acid mfr. by scrubbing with dil sulphuric acid in venturi and packed tower, for simplicity and economy
Inventor: DOERR KARL HEINZ DIPL ING
IPC: C01B17/76
Filed: 1972-11-10
Abstract: The tail gas is scrubbed with 70-80 wt.% H2SO4 in vertical venturi in parallel flow and passed through a vertical packed tower, with a horizontal venturi-type connector above the sump of the venturi, in which it is scrubbed in countercurrent with 70-80% H2SO4, then the scrubbing acid is heated in a heat exchanger and stripped with air, the stripping air being recycled to the contact plant and the stripped acid to the scrubber. The SO2 content can be reduced from 2000 pm to 1000 ppm simply and economically, whilst predried air contg. SO2 is obtd., which can be dried to the optimum extent at low cost.
Patent DE-2310759-A1 (DE)
Title: Synthetic leather mfr. from random webs - by one-bath pigment-dyeing and impregnation with electrolyte soln.
Inventor: FREYBERG PETER DIPL-CHEM DR
IPC: D04H1/64
Filed: 1973-03-03
Abstract: Bath contains pigments, electrolytes, non-ionic tensides and, as pigment-binder, >=1 copolymer contg. interpolymerised hydrophilic gp.-contg. monomers. Binder may contain 0.1-10 (2-6) wt.% monomers with hydrophilic gps., e.g. COOH, carbonamide, OH, alkoxy-methyl carbonamide, hydroxyalkyl ester, dissociated sulphonic acid, -CN, -CO, tert. amine or ammonium, or a dissociated phosphonic acid gp. Ratio binder: pigment - electrolyte : tenside may be (10-50) : (1-10) : (2-30) : (0.5-7) esp. (20-30) : (2-6) : (5-20) : (0.5-3).
Patent DE-2331942-A1 (DE)
Title: Adjustable armrest for dentist's chair - axle mounting for rod arm with longitudinal guideway
Inventor: WEILAND ROLF-JUERGEN
IPC: A61G15/10
Filed: 1973-06-22
Abstract: Armrest has two jointed-together arm rods containing an arm support and each connected by a horizontal axle mounting at their free ends to the chair, with the pivot axis transverse to the chair long axis. The axle mounting with the guide is one of the 3 axle mountings for the rod arms, and a corresponding counter-mounting part is mounted displaceably in the guideway for folding down of the arm support. The axle mounting has unit(s) to arrest the armrest in the position of use. The patient does not have to sit awkwardly, and the armrest can easily be swung away for the patient to get into the chair.
Patent DE-2343644-A1 (DE)
Title: Texturing yarn - improved uniformity of texturing
Inventor: SPURGEON RICHARD C
IPC: D02G1/08
Filed: 1973-08-30
Abstract: Continuous multifilament yarn is textured by passing it through a heater to be plasticized, applying a primary twist e.g. by a friction wheel, applying a secondary twist in the same direction e.g. by a second friction wheel as it leaves the first twisting device so that there is a region between the two twisting devices where the yarn is relieved of twist, stopping twist by a device to prevent it running back into the heating zone and providing a tension leveller to hold the tenion of the yarn in the apparatus constant. The length of the twisted yarn is maintained precisely constant and there is no tendency for the untwisting to run back into this zone. Thus the uniformity in the finished yarn is improved and it does not have bristle-like formations. A fabric having a suede-like band can be produced from the yarn.
Patent DE-2351083-A1 (DE)
Title: Gear wheel finishing - unhardened gear wheels are lapped against roughened hardened gear shaped lapp
Inventor: JOST HERMANN
IPC: B23F19/02
Filed: 1973-10-11
Abstract: A spiral or hypoid gear wheel e.g. a pinion, it its unhardened condition, is lapped against a meshing hardened lapp in the form of the mating gear wheel. The lapp has a surface roughness of 0.05 to 0.15 mm. and is chosen to suit the pinion by a preliminary meshing operation which overmeshes the gears so that full face markings are achieved on the gear teeth. The lapping machine is then set in motion and the to and fro lapping movement of the gears is characterised by a two to five times greater braking force on the movement of the gears than is customary. Process produces a better finished gear that is readily meshed and produced in a shorter time.
Patent DE-2351776-A1 (DE)
Title: Lorry-mounted jib crane - has duplex telescopic jib halves supported in separate brackets with derricking rams below
IPC: B66C23/36
Filed: 1973-10-16
Abstract: A duplex telescopic jib is derricked by a ram about a horizontal axis on the slewing crane superstructure, and the equal telescoping sections are joined by cross-members at the outer ends, the outermost ones accommodating a fly jib between them. Each of the parallel halves of the duplex jib is supported at the base in a bearing bracket with individual bearings. The derricking rams, are mounted below the jib foot pins. The lower links of the rams can be designed also to accommodate a single lattice jib in place of the duplex one, working in conjunction with a derricking gantry pivoting between the bearing bracket, instead of with the fly jib.
Patent DE-2359267-A1 (DE)
Title: Auxiliary carrier on endless conveyor chains - is used to haul load over driveless transition track between two chain conveyors
Inventor: WETJEN ALBERT
IPC: B61B10/02
Filed: 1973-11-28
Abstract: The auxiliary carrier for endless hauling conveyor, using load carriers, is intended to haul these load carriers over driveless transfer path between independent endless conveyor chains by utilising the drive force of the conveyor chain. On the latter components are provided several prestressed and adjustable auxiliary carriers held by their prestressing force over the stops of the load carriers. They can be brought into engagement with these stops by an adjustment rail, the stops being so designed as not to come into direct contact with the conveyor chain carrier. The adjustment rail may be provided on one or both sides in the conveyor chain region, its mounting not being rigid but affording adjustment into the effective region by external forces.
Patent DE-2364556-A1 (DE)
Title: Metal cutting burner nozzle - has external crown of bores for heating oxygen, with some, equispaced bores of enlarged cross section
Inventor: KIMM DIETER
IPC: F23D14/54
Filed: 1973-12-24
Abstract: Burning cutter nozzle has a central channel for cutting O2, and a first, inner crown of bores concentrically surrounding the channel, for combustion gas, and a second, outer, concentric crown of bores for heating O2. A few of the bores of the heating O2 crown have a greater cross section than the other bores of this crown; these larger bores are always equispaced. Preferably at least every other, but at most every third, bore has a larger cross sectional surface. The surface of an enlarged bore is 200-400, pref. 300%, larger than the other smaller bores. Workpieces can be cut with increased cutting yield, and the cut has optional appearance in the bottom cut region of especially thick workpieces.
Patent DE-2401259-A1 (DE)
Title: Liqueur-type bon-bon or praline - having nougat outside the sugar crust containing the liqueur
Inventor: GIEBELEN KARL
IPC: A23G3/00
Filed: 1974-01-11
Abstract: Fabrication of bon-bons or pralines contg. a liq. based on spirits e. g. liquers whisky, rum etc., enclosed in a sugar crust, by coating this with a layer of chocolate acting as an intermediate support for a mass of nougat. Enables nougat to be used as an outer layer of a liqueur bon-bon; this would not be possible if the nougat were applied directly to the sugar crust enclosing the liqueur of spirit.
Patent DE-2405677-A1 (DE)
Title: Cement clinker preheater - comprises independently fired booster chamber also using kiln flue gases
Inventor: KUCERIK OLDRICH
IPC: F27B7/20
Filed: 1974-02-06
Abstract: Granular bulk material is preheated and partially fired prior to being charged into a rotary shaft kiln by subdivision of the material flow into two streams, which are passed counter currentwise through hot gases from a central combustion chamber. The hot gases are pref. made up by the hot flue gases from the kiln and the hot gases from a booster combustion chamber which is independently fired. The system allows preheating of the feed to cement clinker firing kilns to a degree which is not possible in conventional vertical shaft pre heaters. It is used for cement mfr.
Patent DE-2407621-A1 (DE)
Title: Geometrically contoured building block - has parallel end faces and progressively varied sides providing interlock between blocks
Inventor: BURR KARL
IPC: E04B2/22
Filed: 1974-02-18
Abstract: The block has parallel upper and lower surfaces at least one of which is non-circular. The body of the block is shaped for the cross-section to vary between the end faces to define a generally gradual transition between the end faces. The blocks are arranged alternate ways so that large end faces lie adjacent small ones. A very large number of variations are shown. In one example the end faces are bound by circumferentially alternate convex and concave edges. On of the faces is smaller than but geometrically similar to the other one and the concave portions of the one end fit the convex portions of the other.
Patent DE-2407890-A1 (DE)
Title: 3(5)-Aminopyrazoles prepn - from hydrazines and dihalopropionitriles
Inventor: EGE GUENTE PROF DR
IPC: C07D231/38
Filed: 1974-02-19
Abstract: of formula (Ia) or (Ib) (where R is opt. substd. alkyl, cycloalkyl, aralkyl or phenyl; R1 is alkyl, cycloalkyl, aralkyl or opt. substd. phenyl) are obtained, according to the parent patent, by reacting cpds. of formula (II): R1-CH=C(X)CN (II) (where X is Cl or Br) in alkaline medium, with hydrazines of formula (III): R-NH-NH2 (III). In the present method, cpds. of formula (IV): R1-CHX-CHX-cn (IV) are reacted with (III) to form (I). Specifically claimed is the reaction of 2,3-dichloropropionitrile with hydrazine.
Patent DE-2409900-A1 (DE)
Title: Mono- and dicalciumphosphates for animal feedstuffs - produced from phosphoric acid and natural phosphate in two stages, including neutralisation with calciumcarbonate in economical process
Inventor: POSIN MAX CHAIMOWITSCH
IPC: A23K20/26
Filed: 1974-03-01
Abstract: H3PO4 with a P2O5-content of 40-55% and an F-content of max. 0.3% is neutralised to the first H-ion with natural phosphate of 10-40% at 90-130 degrees C. The slurry produced is reacted with CaCO3, CaO or Ca(OH)2 or mixts. at 50-100 degrees C until the pH of its 0.01M aq. soln. is 3-6. The resulting solid is then dried at 80-150 degrees C sieved, milled and packed. The mono- and dicalcium phosphates produced are used as animal feedstuffs. The process may also be carried out to produce dehydrated Ca phosphates. (a) Compared with processes reacting H3PO4 with CaO, CaCO3 or Ca(OH)2 expensive H3PO4 is reduced by 4-15% and calcium reagents by 10-40%. CaSO4 is removed in bulk in the solid first phase preventing settling on walls and stirrers. Development of gas is reduced by 10-40% and foaming is reduced.
Patent DE-2411905-A1 (DE)
Title: Weavers loom shuttle measurements - by measuring heads along path and control heads on loom spindle feeding programmed control unit
Inventor: HAENEL THOMAS DIPL ING
IPC: D03D51/00
Filed: 1974-03-13
Abstract: Dynamic measurement of the shuttle motion and by the control times of weaver's looms are carried out by fitting along the path of a shuttle a large number of measuring heads and of control heads which operate in synchronism with the loom motion. The individual readings during the continuous run are taken at fixed consecutive pick of weft entries so that the measurements are stretched over a longer period of time. Little instrumentation is required and readings can be used t optimize loom productivity.
Patent DE-2418753-A1 (DE)
Title: Time sequence control of regulated output voltages - for power supply unit, esp operating voltages of travelling wave tube
Inventor: MIETH GUENTHER
IPC: G05F1/56
Filed: 1974-04-18
Abstract: A transistor is connected in the connecting line of that output voltage, which is regulated in dependence on a first output voltage. The control electrode of the transistor is connected to the output of a voltage regulator which features an input for the nominal value and the actual value. A potentiometer is located between the terminals of the regulated voltage and a further output voltage, and the tapped voltage is fed to the voltage regulator. The reference voltage is passed to a Zener diode for comparison. An operational amplifier with nominal value input and actual value input drives the transistor.
Patent DE-2418791-A1 (DE)
Title: Plastics facing sheets applied to both sides of panel - with fast panel feed to rolls and close spacing between panels
IPC: B29C63/00
Filed: 1974-04-19
Abstract: An appts. for continuously applying facing sheet to both sides of panels comprises one upper and two lower rolls for applying the adhesive ahead of the sheet, a pair of introducing rolls, and a thruster for pushing the individual panels into the opening between the introduction rolls; the thruster initially pushes each panel from the stack towards the rolls at a faster speed than the acceptance speed of these rolls; just before the panel reaches the rolls a sensor detects the leading edge of the panel and provides a signal causing the speed to be slowed down to the acceptance speed of the introduction rolls. A guide mechanism is used for bringing the lower facing sheet into contact with the lowest of the two lower adhesive-applying rolls. The detector is esp. a photoelectric cell. The guide device for the lower sheet is pref. a guide roll parallel to the lower adhesive-applying roll. In addn., the lowest pressing roll may be used as a guide roll and may be pivotally mounted for this purpose. Panels can be coated on both sides and faced with sheets in a closer succession than previously, i.e., with smaller gaps between them. In addn., the facing sheets are fully coated with adhesive so that outstanding portions at the edge can be sealed without a further coating operation.
Patent DE-2419082-A1 (DE)
Title: Kitchen waste-disposal unit with shock-absorbing means - has resilient buffers and different connecting points preventing direct transfer of vibrations
Inventor: MORDSTEIN JOHANN
IPC: A47B77/08
Filed: 1974-04-20
Abstract: The waste-disposal unit is provided with sound and shock-absorbing means to prevent the transfer of vibrations to the adjoining kitchen units and for this purpose elastic buffers are fastened to the sides of the frame of the apparatus so that they project into peg holes provided in the lining walls of the apparatus. These lining walls are fixedly connected at another point to the abutting side wall of the adjacent cupboard, so that there is no direct link by which the vibrations could pass straight to the adjoining units. The lining walls of the apparatus are fastened to the adjoining cupboard from the side of the latter so that even if the apparatus becomes jammed from the front it can still be dismantled with ease from the side.
Patent DE-2419642-A1 (DE)
Title: Analogue-digital converter with two quantising devices - uses first quantising device for coarse range, and second for fine range
Inventor: FLETCHER RUSSEL EDWARD
IPC: H03M1/00
Filed: 1974-04-24
Abstract: The first quantising device compares the analogue input signal with a number of coarse amplitude ranges, and delivers a digital output signal describing the coarse range into which the input signal falls. There is a subtractor which determines the difference between the analogue input signal and the coarse step to which the above range corresponds and the second quantising device delivers an output signal describing the above difference; a device signals when the subtractor signal exceeds a range limited by the coarse range, and generates a corresponding correction or error signal. The signalling device input is connected to the second quantising device.
Patent DE-2433325-A1 (DE)
Title: Hard paper and cardboard mfr - from waste paper and using process with recycling water
Inventor: VARKA JOSEF
IPC: D21C5/02
Filed: 1974-07-11
Abstract: Hard paper and cardboard are produced in a process in which the water is recycled, and by using as addn. mediums in the initial stages of the process, those which are obtd. by mixing alkali silicates and alkalifluoro silicates in the presence of alkali carbonates, or -bicarbonates and/or alkalifluorides or alkali salts with a strong polar anion and/or org. polyhydroxy cpds. These addns. contain 0-1.0% alkali salts with strong polar anion, and a high stoichiometric excess of alkalifluorosilicate against alkalisilicate. In the later stages of the process the excess acidity of the water is neutralised by the addn. of alkali silicates, and the amt. of sulphate and/or chloride ions is reduced by adding Pb cpds. and/or by using Pb- or Pb-Pb dioxide electrodes.
Patent DE-2434573-A1 (DE)
Title: Machine for simultaneous winding of several coils - performs programmed winding, wire cutting and fastens ends of wires together
Inventor: LANGER KURT
IPC: H01F41/076
Filed: 1974-07-18
Abstract: For simultaneous winding the bobbins are supplied to the winding machine on a work piece carrier. The wire runs off supply rolls of which one is provided for each bobbin on the work piece and the wires are fed through guide channels in a plane which are movable around the bobbins. The wire is cut between the completed bobbin and the supply roll. Holding means on the work piece carrier secure the free wire ends of the bobbin which through a clamping arrangement and the wire guides are brought into a defined rest position. The supply-roll ends after cutting are held by another clamping arrangement and are brought back into the original rest position. The wire guides converge towards the bobbin to direct the wire onto a defined point on the bobbin.
Patent DE-2435888-A1 (DE)
Title: Benzylidene and cinnamylidene dyes contg. a sulphoalkyl gp - as yellow-purple-red dyes in photographic materials
Inventor: KOBAYASHI TERUO
IPC: C09B23/00
Filed: 1974-07-25
Abstract: New benzylidene and cinnamylidene dyes have the formula (I): (where R is alkyl, aryl, carboxyl, alkoxycarbonyl, aryloxy carbonyl, carbamoyl, arylaminocarbonyl, OH, alkoxy, aryloxy, amino, alkylthio, mercapto, sulphamoyl, arylaminosulphonyl, ureylene or thioureylene; Ar is arylene; R1 is sulpho, carboxyl, OH, alkoxy or amino; L1-L3 are the same or different methine gps; L is alkylene; M is H or salt forming cation; n is 1 or 2). (I) are used as yellow, orange and purple-red dyes in light-sensitive photographic materials, e.g. in the anti-halation or filter layers. Compared with similar known dyes contg. a water-sol. phenyl gp. in the 1-pos. of the pyrazolone ring, (I) can be quickly and easily washed out during developing and compared with known dyes contg. a sulphophenyl gp. (I) are easily sol. in MeOH.
Patent DE-2437063-A1 (DE)
Title: Magazine attachment for nailing machine - forked front end fits over nose and rear end is height adjustable
IPC: B25C1/00
Filed: 1974-08-01
Abstract: The nailing machine designed so that the nail magazine can be detached to assist interchangeability and repair, has the magazine (4) extending between the impact mechanism (3) and the handle (5) at the rear. The front end of the magazine casing is forked, with its jaws (6) enclosing the housing (12) of the nose of the impact member, secured by a screw (7) each side. The rear end of the magazine is secured to the handle by a screw (10) passing through a slot (9) in the handle so that the slope of the magazine can be adjusted, by tilting about the screws at the front end.
Patent DE-2440248-A1 (DE)
Inventor: MAEDA KATSUTOSHI
IPC: G04B3/04
Filed: 1974-08-22
Abstract: A winding mechanism for watches particularly back winding watches in which a winding stem has a winding gear rotational thereon provided with ratchet teeth. The winding gear meshes with a ratchet gear at all times. A clutch gear is mounted for rotation with the winding stem and is axially slidable thereon. It is biased by a spring toward engagement with the ratchet teeth of the winding gear by means of a spring. The clutch gear is declutched when the winding stem is pulled out for a hand-setting operation. The clutch gear is engaged by an enlarged diameter portion of the winding stem lifting it so that it disengages from the ratchet teeth of the winding gear against the action of its biasing spring.
Patent DE-2441917-A1 (DE)
Title: Ball joint for steering linkage of vehicle - with stop acting perpendicularly to longitudinal axis of joint pin
Inventor: SCHMID LEOPOLD F
IPC: F16C11/08
Filed: 1974-09-02
Abstract: A ball joint for the steering linkage of a vehicle comprises a joint housing which is closed by a cover (1) and in which is cardanically mounted a bearing element (17) with a convex surface of elastically and plastically deformable material. Rotatably mounted in the bearing element is a flanged joint pin (19) of which the flange (10) is biased axially towards the bearing element by a spring abutting against the cover. The flange is disposed in a bore (4) in the bearing element of dia. greater than the outer dia. (3) of the flange to provide a radial clearance (5). The bearing element includes in the region of the bore slots (14) forming spring elements (15), the convex surface being biased towards the concave surface (2) of the cover. MATERIALS The bearing elements (17) is pref. of polyurethane.