baber/WOPTO huggingface dataset:
Patent DE-2000494-A1 (DE)
Title: Elastase enzyme prodn by bacterial fermen - tation
Inventor: ALEXEEWITSCH RASSULIN JURIJ
IPC: C12N9/52
Filed: 1970-01-07
Abstract: Elastase used in (1) food industry, for tenderising meat, (2) for tanning hides, (3) in medicine for removing necrotic skin surfaces in burns, scars or lungs, sclerotic platelets in some types of atherosclerosis, and for cleaning pus deposits, is prepared by culture of microorganism Actinomyces rimosus (A) on nutrient medium containing process for C, N and inorganic salts, sorbing the enzyme, after producer cell preparation, from soln. in presence of salicylic acid and phenol-based ion exchange resins at =10 degrees C, extracting product with a salt soln. of >=1 molar concn. and pH 9-9.4, precipitating product from eluate with an organic solvent, separating and drying. Ion exchange resins contain salicylic acid and phenol in 1:0.2 mole ratio, and have 9-11 swelling power in Na+-form. Pref. sorption and product separation take place at 2-4 degrees C, and pref. salt extractant soln. contains 1 mole NaCl, 0.3 moles NH4Cl and NH4OH to pH 9-9.4. (A) is producer for oxytetracycline as well, and prodn. of elastase can be combined with that of oxytetracycline.
Patent DE-2006080-A1 (DE)
Title: Thiazolidine-4-carboxylic acids
IPC: A61K31/425
Filed: 1970-02-11
Abstract: Thiazolidine-4-carboxylic acids New cpds. of general formulae (I) and (II): (where R1 = H or opt. substd. pref. lower alkyl; R2 = carboxamido opt. substd. with aliphatic-, araliphatic or aromatic residues, carbalkoxy or cyano; R'1 = H or aliphatic residue; R'2 = carboxyl, carbalkoxy, carboxylamido or nitrile; R3 = a residue derived from a biologically-active cpd.), may be used in prepns. which are active in prophylaxis and treatment of virus diseases such as infectious hepatitis, enterovirus etc.
Patent DE-2007587-A1 (DE)
Title: Continuous casting plant plate cooling system
IPC: B22D11/124
Filed: 1970-02-19
Abstract: Cooling of the outer surface of a continuously produced casting directly after leaving the casting machine mould is effected by a cooling plate zone, where one or more pairs of plates are in direct contact with the casting surface. The plates participate in the forward motion of the casting staying in contact with it. Pref., the plates are U shaped and have on the surface in contact with the casting, grooves with drilled holes through which coolant sprayed against the back face of the plate is passed to the front face. This method of support accompanied by cooling is more effective than present methods and prevents breakout of liquid metal from the interior of the casting, its surface being fully supported.
Patent DE-2016177-A1 (DE)
Title: Material slip control during wet treatment
IPC: D06B3/34
Filed: 1970-04-04
Abstract: The operating speeds of the squeeze rollers and the safety roller in the transport of woven or yarn goods to a wet treatment plant are compared. The result is converted into analogue or digital form to compare with pre-set limits, and if slip has developed beyond accepted tolerances, the drive is stopped to the wet treatment plant, and the upper roller of the squeeze rollers accelerated to take up the material slip.
Patent DE-2019463-A1 (DE)
Title: Fermentation of starch - cong material mash-saccharified by alpha amylase and amyloglucosidase and added to yeast
Inventor: MATZIK BERNHARD DR
IPC: C12P7/06
Filed: 1970-04-22
Abstract: Grain-contg. mashes digested by usual methods and saccharified with alpha-amylase- and amyloglucosidase prepns. are fed at an amt. of yeast corresponding to a final concn of 5 X 107 cells/ml. amxk and fermentation is completed while stirring mixture continuously or periodically and maintaining usual temp. Process is used for ethanol prodn. by fermentation of grains-contg. mashes from starch-contg. raw materials.
Patent DE-2022019-A1 (DE)
Title: Tiered baking oven
Inventor: LINDER ALOIS
IPC: A21B1/26
Filed: 1970-05-05
Abstract: Forced variable direction circuit provided by transverse blowers working on to a combustion chamber arranged between them and ringed by a heat exchanger is fitted with atmosphere outlet and hand operated valve at a point where overpressure conditions are static throughout the baking run, regardless of flow direction. This allows moist atmosphere to be used at start of the run to crust the dough and improve its final appearance.
Patent DE-2029286-A1 (DE)
Title: Crop drying - by acid to prevent mould in feedcake with nutrient and de-tensioners
IPC: A23K30/10
Filed: 1970-06-13
Abstract: Stalk or leaf crops are treated with propionic acid prior to compaction into briquette or feedcake. They can be treated with nutrients such as urea and oils for reducing the surface tension. Prior to application, by spray, sprinkler or dusting, the crop should be prepared by rolls, or torches as this improves permeation. The addition prevent mould formation in the compacted feed cakes and thus prolong silo life, at the same time speeding up the drying process.
Patent DE-2031506-A1 (DE)
Title: Swivel device - for placing clay cakes into the lower mould of an automatic rotary drum roof tile press
IPC: B28B5/12
Filed: 1970-06-25
Abstract: The device comprises a swivel lever onto which the cake si manually or mechanically placed, when it is in the horizontal rest position. The lever is fitted with a clamping device linked to a micro switch which activates the swivel cylinder when a cake is in position so that the cake is transferred on to the mould, whence it is released by the action of another microswitch, which activates the return motion for the lever. The device provides a link for the automatic running of a roof tile manufacturing plant.
Patent DE-2036271-A1 (DE)
Title: Constant hot water supply - for central heating plant using low tariff power supply
IPC: F24H7/04
Filed: 1970-07-22
Abstract: Water heater/storage tank has electrical heating element in core of 40 pts. Na2SO4 and 60 pts. C-free crude-Fe in powder form, heated to 400 degrees C, which gives up heat to water around it to 95 degrees C. There is also return tank, with water, at 55-58 degrees C water from the 2 tanks being mixed to keep temp. of circulating water at 65 degrees C. This can be used for operating central heating plants for closed and open systems and single pipe pumping system giving constant hot water supply in conjunction with use of low tariff power supply. Other possible core packing materials are magnesite, salt alone or Fe alone. core has steel sheath protected against corrosion.
Patent DE-2037703-A1 (DE)
Title: Allylalcohol-water azeotrope for glyci- - dol preparation
IPC: C07D301/19
Filed: 1970-07-29
Abstract: In the preparation of glycidol from allylalcohol and organic hydroperoxide on a metal epoxidation catalyst, in a liquid medium, the allyl alcohol is used in the form of its azeotrope with water. The liquid medium may contain an organic solvent, in which case the water content is kept above 7 wt. % or particularly if glycerol is formed too and has to be recovered, the water content of the liquid may be up to 90 wt.%. The azeotrope is much cheaper than purer allylalcohol, yields up to well over 90% on reacted hydroperoxide can be achieved.
Patent DE-2038862-A1 (DE)
Title: Control of chemical and/or technological - processes
Inventor: GUENTHER EGGERT DIPL-ING
IPC: F15B20/00
Filed: 1970-08-05
Abstract: In electro-pneumatic or electro-hydraulic control apparatus a certain predetermined pressure must be adhered to. Pressure changes are used to activate a control or switching mechanism functioning at the same pressure as the system. Preferably, a wire-compensator with safety catch is used.
Patent DE-2050909-A1 (DE)
Title: Double insulated wire - with polyimide outer sheath and inner sheath prodn
IPC: H01B13/06
Filed: 1970-10-16
Abstract: The PTFE insulated wire is drawn upwards through a polyimide bath and through a float with a central hub in which a nipple, esp. of silicone, whose dia. is slightly larger than that of the PTFE coated wire is fitted so ensuring that the thickness of the polyimide sheath is constant, since the float allows minor lateral movements of the wire to be taken up. Product is both heat-resistant and tough.
Patent DE-2108314-A1 (DE)
Title: Rapid cooling rolled rod - of structural steel by a controlled - water quench method
IPC: C21D9/52
Filed: 1971-02-22
Abstract: Accelerated cooling of hot rolled rod of carbon steel made on alloy steel rolling streets comprises a first cooling stage immediately after leaving the last roll in an enclosed compartmented water cooling installation in which the material is cooled down to 150 degrees C, following which it is allowed in still air when the temp. between out- and inside evens out again and the required structure is allowed to develop, this being succeeded by a final cooling in which the steel is fully submerged in the cooling bed. Plants laid out for this yield reduced scale on final product have improved flexibility of operation, and permit faster throughput.
Patent DE-2109251-A1 (DE)
Title: Sensitisation of electrophotographic material - contg flexibiliser adhesion promoter with halogen
IPC: G03G5/082
Filed: 1971-02-26
Abstract: Electrophotograpic recording material, consisting of a photoconducting amorphous material, which is applied to a conductive support and contains an additive to reduce its brittleness and improve its adhesion to the support, also contains additive(s) to increase the photoelectric sensitivity. This material has improved flexibility and adhesion without detriment to the photoelectric properties. Pref. compsn. is Se with 0.5-40 wt.% S, sensitised with 5-5000, pref. 10-500 ppm halogen(s) or halides.
Patent DE-2109954-A1 (DE)
IPC: G05B19/21
Filed: 1971-03-03
Abstract: This invention relates to an extremely accurate measuring system comprising a single laser interferometer and associated single counting apparatus responsive to a multiple axis laser beam reflectively connected to measure one of a plurality of different movements in a multiple axis machine tool. Preferably, the measuring apparatus is incorporated in a machine tool having a frame provided with a worktable movable along an X axis relative to an upright column mounted on the frame for transverse movement along a Z axis. The upright is disposed to carry a spindle head for movement along a vertical or Y axis to effect selective movement of a cutter relative to an associated workpiece mounted on the worktable in the usual manner.
Patent DE-2123228-A1 (DE)
Title: Polymer - insulated high voltage cable - with liquid dielectric material between two insulation layers
IPC: H01B7/02
Filed: 1971-05-11
Abstract: Insulation e.g. polyethylene, is extruded onto a further insulation layer and between the two is a film or layer of a liquid dielectric, pref. hydrocarbon based, contg. a silicone oil, and/or an insulating oil, which may also contain voltage-stabilising additions.
Patent DE-2129610-A1 (DE)
Title: Methine dyes - as spectral sensitisers for photoconducting - compsns eg zinc oxide
Inventor: DEPOORTER HENRI DR
IPC: G03G5/06
Filed: 1971-06-15
Abstract: The dyes have the formula I or II: (where Q is O or NR; R is an aliphatic or aromatic; Z1 and Z2 are the atoms required for a naphthalene ring; L1, L2 and L3 are each opt. substd. methine gps.; R1 is a substituent of the type present in cyanine N atom; n is 1 or 2; m is 1, 2 or 3; Z3 is the atoms required for a heterocyclic N-contg. ring; and M+ is a cation).
Patent DE-2133329-A1 (DE)
Title: 3,4,5-trisubstd-2,6-diamino-thiaphosphorin-4-thiones - - with miobicidal and fungicidal activity
Inventor: SCHINDLER NORBERT DIPL-CHEM DR
IPC: C07F9/53
Filed: 1971-07-05
Abstract: Cpds. of formula (I):- (where R1 is 1-12C hydrocarbyl, a heterocyclic gp., alkylthio, or arylthio; R2 is 1-12C hydrocarbyl; R3 and R4 are 1-4C hydrocarbyl, or NR3R4 is a heterocyclic ring opt. contng. other heteratom(s)) are prepd. by reacting (R1PS2)2 with R2C=CNR3R4, pref. in a molar ratio of 1:4. The prefd. cpds. are (I) where R1 = Me, methoxyphenyl, thiofuryl or phenylthio; R2 = Me or Ph, R3 and R4 = Me or Et.
Patent DE-2135583-A1 (DE)
Title: Semiconductor cathode for battery - prodn by coating metal halide or oxide particles with sulphide
Inventor: BRAUN LEON
IPC: H01M4/36
Filed: 1971-07-16
Abstract: Semiconductor cathode consists of particles of a halide or oxide of Cu, Ni, Fe.Ag or Pb coated with a sulphide with the same cation as the halide or oxide. This cathode has relatively high conductivity, having a high proportion of energy-producing materials and a low proportion of non-energy-producing materials compared with cathodes using the conventional depolarisers.
Patent DE-2144272-A1 (DE)
Title: Nitro-benzodiazepines - prepn from 2-(2,3-diketopiperazino) nitrobenzophenones
IPC: C07D243/16
Filed: 1971-09-03
Abstract: Benzodiazepines of formula (II): (where R' = H, hal, 1-4C alkyl or CF3) are prepd. by heating diketopiperazines of formula (I) with a hydrolytic reagents.
Patent DE-2157402-A1 (DE)
Title: Acrolein/acrylic acid prepn - with catalyst consisting of oxides of potassium, silver, iron, bismuth, molybdenum and phosphorus
Inventor: ERPENBACH HEINZ DIPL CHEM DR
IPC: C07C51/25
Filed: 1971-11-19
Abstract: Catalyst for oxidn. in the gas phase of propylene to acrolein and/or acrylic acid consists of the metal oxide compsn. of formula (Ia) pref. (Ib) on a silica support. K0.05-2.0Ag0-1.0Fe0.1-12Bi0.1-12P0-5.0M12O30-110 (Ia) K0.05-2.0Ag0.05-1.0Fe0.1-12Bi0.1-12P0.05-5.0M12O30-110 (Ib) The catalyst is pref. produced by (a) impregnating silica with a soln. of cpds. of the active elements, (b) evaporating the solvent, (c) drying at 100-300 degrees C., and (d) heating at 450-900 degrees C. to give a pdt. with a BET surface of 3-40 m.2/g. The oxidn. capacity of the catalyst is considerably increased as a result of the presence of a small amount of potassium.
Patent DE-2203302-A1 (DE)
Title: Bleach/fixing developed colour material - with aqs bath contg edta iron complex and sodium or ammonium thiosulphate
Inventor: SCHRANZ KARL-WILHELM DR
IPC: G03C7/42
Filed: 1972-01-25
Abstract: Bleach fixing of colour developed residues of colour developer contg. material for colour photography is effected by spraying the material with a bath contg. the iron complex of EDTA as bleaching agent, and sodium or ammonium thiosulphate as fixing agent, at pH 6-8 and a redox potential which is 100m V, and is more positive than the potential of a mixt. of equal pts. of the divalent and trivalent iron complexes of EDTA. Pref. the redox potential of the bath is adjusted by the addn. of an alkali metal dithionite, alkali metal or zinc formaldehyde-sulphoxylate, hydrazine or hydroxylamine and the bath opt also contains an optical bleaching agent. The redox potential is adjusted continuously and automatically with a redox measuring circuit, and the required amount of the reducing agent is automatically defined and added. Bleaching of the image silver, and oxidn. of the leuco cpd. of the blue-green dye are effected efficiently and rapidly without formation of dye fog.
Patent DE-2207219-A1 (DE)
Title: Thermoplastic sausage skin storage - on reels with interleaved strips of crepe paper
Inventor: KALUZA LUDWIG DIPL ING
IPC: A22C13/00
Filed: 1972-02-16
Abstract: Shrinkable sausage skins, consisting of thermoplastic foil hose, can retain their flat surface after storing on a reel and prior to filling with meat. This can be achieved by interleaving the foil turns on the reel with strips of soft material such as crepe paper which can absorb the radial components of any shrinkage forces.
Patent DE-2209684-A1 (DE)
Title: Heat exchanger - with individual nozzle feed along axis of each tube
Inventor: PFISTERER ROLF
IPC: F28F9/00
Filed: 1972-03-01
Abstract: Heat exchanger, pref. with multiple finned tubes, comprises an inlet header fitted with a number of nozzles, each discharging approximately concentrically into the associated tube. In a prefd. arrangement, the feed header forms a ring supplying an annular array of tubes mounted on the rotor of a blower.
Patent DE-2214043-A1 (DE)
Title: Effect yarn production - components are folded under alternating extensions so as to give colouring like space dyed yarn
Inventor: HAASTERT GERHARD
IPC: D02G3/28
Filed: 1972-03-23
Abstract: Pref. high extension e.g. false twist yarns are used as the components of a yarn for multicolour solid areas e.g. carpets. Four yarns may have different colours each being fed under different, alternating tensions to the twisting point so that at least one yarn will be stretched, another will be relaxed. Thus in the folded yarn, there can be a short length of one colour next to a longer length of another.
Patent DE-2216303-A1 (DE)
Title: Vibrating dryer - with converging walls in the drying chamber to maintain uniform material depth
Inventor: BONGERT WILHELM
IPC: F26B17/26
Filed: 1972-04-05
Abstract: Particulate or granular material passes over the perforated base of the vibrating drying chamber and hot drying gas or vapour flows up through this base. The walls of this chamber converge in the direction of material movement to maintain the depth of the bed of material.
Patent DE-2231029-A1 (DE)
Title: Hydrogen chloride removal - from refuse incinerator flue gases by crushed slag as sorbing agent
Inventor: BROCKE WERNER DIPL ING
IPC: B01D53/68
Filed: 1972-06-24
Abstract: The hydrogen chloride contained in the flue gases of refuse incinerator plants is removed by using slag and precipitated flue dust from the process by themselves or with the addition of alkalis or alkaline earth metals as sorbing agents. The slag is crushed to a suitable particle size, screened and introduced into the path of the flue gases where a gas-solids reaction takes place with the Hcl at 500-700 degrees C. (600 degrees C).
Patent DE-2234915-A1 (DE)
Title: Heavy duty conveyor belt esp. for mines - has polyester warp threads for strength polyamide weft for flexibility
Inventor: LOOSE GERH
IPC: B65G15/34
Filed: 1972-07-15
Abstract: A conveyor belt, esp. comprising two fabric inlays constituted of fully synthetic fibres is made up of belt lengths joined together with connecting hooks; the fabric inlays comprise warp filaments of polyester, and weft filaments of polyamide. Pref. each inlay is a multilayer, esp. a two-layer inlay. The warp threads are endlessly spun threads, whereas the weft threads may be either endlessly spun or staple fibres. The proportion of weft is 3.5-6%. Esp. for long conveyor belts for use in mining and quarrying, where it is inevitable that the belt will be made up on the site from a number of lengths hooked together. The use of polyester warp longitudinal fibres give reduced elastic elongation under load, combined with high strength, while the use of polyamide weft or transverse fibres provides the necessary resilience for the hook loads by distributing the point forces through the fabric. Also, the necessary flexibility for transverse curvature is obtd.
Patent DE-2249754-A1 (DE)
Title: Scrubbing gases evolved during hot-dip zinc-plating - using circulated liquid from flux bath
Inventor: HOELTER HEINZ
IPC: B01D53/68
Filed: 1972-10-11
Abstract: Gases contg. Cl and NH4 ions and opt. particles of ZnCl2 and ZnO carried away from the flux bath into the molten zinc pool are scrubbed with circulated liquid from the flux bath thus valuable components of the flux bath are recovered, and there is no pollution of effluents.
Patent DE-2256228-A1 (DE)
Title: Vibration protected insulated cable - having corrugated centre conductor embedded in resilient insulation
Inventor: BREITENBACH OTTO
IPC: H01B11/18
Filed: 1972-11-16
Abstract: In a cable esp. for use in high vibration level environments for the carriage of radio frequency signals and to prevent microphone and increase life, the outer flexible tubing of thermoplastic or elastomeric material which carries the outer conductor and its insulation sheath, is completely filled with plastic material esp. polyisobutylene in which the axially corrugated inner conductor is embedded.
Patent DE-2312356-A1 (DE)
Inventor: NEMETH AUGUSTIN
IPC: G10L25/90
Filed: 1973-03-13
Abstract: 1383621 Excitation frequency detector INTERNATIONAL BUSINESS MACHINES CORP 6 March 1973 [28 March 1972] 10914/73 Heading H4R Fundamental frequency of a speech signal is determined by sampling the speech signal and generating digital values representative of each sample, determining the absolute value of the difference between each successive pair of sample values, continuously summing the absolute differences to obtain for each sample "i" a function "S(i)" and detecting variations in the slope of that function to indicate the time at which the mouth cavities are excited, i.e. the time at which differences between successive sample values start to increase after a period in which they have been decreasing. As described speech is sampled at 100 Ásec intervals and digitally coded in pcm coder 1. Differences between successive samples are provided by subtractor 7 fed directly from coder 2 on one input and via a one sample period delay 4 on the other input. The absolute value of the difference is provided by unit 10. Adder 11 and register 13 enable a running total to be provided for the absolute differences, while shift registers 17 and 19, both of which provide twenty sample periods delay, allow the comparison, in subtractors 20 and 21, of the running totals at three sampling points spaced twenty sampling periods apart, to give an indication of the slopes before and after the middle sampling point. The slopes are compared in subtractor 23 to provide on line 26 the magnitude of the difference in slopes, and on line 27 the sign of the difference in slopes. When line 27 is positive, corresponding to an increase in slope of the sum of the difference signals which occurs at the commencement of the excitation period, AND gate 28 is enabled passing the signal on line 26 to line 29. The slope difference signal is filtered in digital filter 30, to remove small high frequency variations, and applied to comparator 44 and register 42, via AND gate 43 which is enabled only when the comparator 44, which compares current slope and the slope stored in register 42, provides an output indicating that the current slope is larger than the stored slope. When the opposite condition occurs the value then stored in register 42 is held and the comparator 44 output signal is fed through inverter 47, and gate 48 to bi-stable circuits 52, 53, to produce a short pulse on the output of AND gate 57 indicating the start of the excitation period. When the sign of the slope difference signal on line 49 first goes positive, prior to the commencement of an excitation period, the register 42 and bi-stable 52, 53, are reset ready to detect the following maximum slope difference indicating start of the excitation period. The units shown dotted are provided to give a variable threshold to the maximum slope difference value detector by enabling and gate 48 only when the maximum detected by the comparator 44 bears a predetermined relation, e.g. more than half, the previous maximum detected.
Patent DE-2317884-A1 (DE)
Title: Wood board mfr using formaldehyde - releasing glues - FORMALDEHYDE ESCAPE BEING PREVENTED BY CHEMICALLY BONDING IN BOARD COMPSN.
Inventor: SCHNITZLER ERWIN DR ING
IPC: B27N1/00
Filed: 1973-04-10
Abstract: Wood material board prepn. from a mixt. of wood pts. and thermosetting resin binders (I) releasing HCHO under heat and press. is effected by chemically bonding released HCHO within the wood-board. This is achieved by adding suitable chemical materials (A) to mixt. pref. to wood or (I), and/or by working with wood pts. contg. (A). Pref. (A) are tanning materials and tannins, their derivs. and decompsn. products, catechol phenol-ketones, and polyhydric phenols, and/or their derivs.