baber/WOPTO huggingface dataset:
Patent GB-568098-A (GB)
Title: Improvements in the production of organic esters of cellulose
IPC: C08B3/22
Filed: 1943-06-08
Abstract: An organic ester of cellulose is obtained by esterifying cellulose in the presence of an inorganic acid esterification catalyst and a solvent for the cellulose ester, and after partially neutralizing the inorganic acid catalyst in the primary esterification solution to 0.1-1 per cent of the weight of the original cellulose, the cellulose ester is ripened at a temperature above room temperature in two or more stages, before each of which water is added to the solution. The cellulose ester obtained is of high stability and it is unnecessary to submit it to a separate stabilizing treatment.  The total amount of water added for ripening may be 60-240 per cent of the weight of the cellulose.  The water may be added by itself or preferably in the form of a solution of the acid used as solvent for the cellulose ester.  The neutralizing agent may be added as a powder, or as a solution in acetic acid, or it may be added with the water for ripening.  The neutralizing agent may be a compound which reacts with the catalyst without setting free another strong acid, and it is preferably a compound which forms with the catalyst a salt which is insoluble in the cellulose ester solution.  It may be an oxide, hydroxide, carbonate, acetate, or other organic salt of zinc, aluminium, lithium, calcium, strontium, barium, or magnesium. Ripening may be carried out at 60-90 DEG  C.  The inorganic acid esterification catalyst may be sulphuric acid, phosphoric acid, or a mixture of these acids.  The process is applicable to the production of cellulose acetate, propionate, butyrate, or other ester.  In an example, cotton is acetylated with acetic anhydride, acetic acid, and sulphuric acid.  Water is added to destroy unreacted anhydride and then a mixture of magnesium and calcium acetates is added in amount sufficient to neutralize most of the sulphuric acid, leaving only 1 per cent of the weight of the original cotton.  Water is added and the solution is heated to 75 DEG  C. with steam.  Ripening is continued for several hours until a sample of the cellulose acetate is soluble in hot chloroform, but not in cold.  A further amount of water is added and ripening is continued for several hours.  The product is obtained by precipitation with water.  It has an acetyl value of 55 per cent calculated as acetic acid.  Specification 538,913 is referred to.
Patent GB-1158725-A (GB)
Title: Production of N-Carboxy Anhydrides of Amino Acids
Inventor: CONN JOHN BYRON
IPC: C07D233/64
Filed: 1966-06-22
Abstract: 1,158,725. Process for N-carboxyanhydrides of amino acids. MERCK & CO. Inc. 22 June, 1966 [24 Oct., 1965], No. 9279/69. Divided out of 1,158,721. Heading C2C. Hydroxylated N-carboxy amino acid anhydrides are prepared by reacting a metallic chelate of a hydroxylated α-amino acid with a transition metal with COCl 2 . Suitable amino acids are tyrosine, threonine, serine and hydroxyproline, and suitable metals are selected from Groups IB, IIB, IIIB and VIII of the Periodic Table. The process may be combined with one wherein the chelate is formed by reaction of a salt or base of the metal with the amino acid.
Patent GB-1261736-A (GB)
Title: Improved industrial drier
Inventor: QUESNEL GUY
IPC: F26B11/02
Filed: 1969-02-20
Abstract: 1,261,736. Drying pulverulent material. STEIN INDUSTRIE. 20 Feb., 1969 [22 Feb., 1968], No. 9327/69. Heading F4G.  A drier and cooler includes a rotary drier drum 1 provided with a rolling track 5 of larger diameter whereby it is supported on and rotated by pneumatic tyres 2b and a heating hearth comprising drum 9 supported on carriage 11 and movable along the axis of drum 1 on rails 13. The heating hearth has oil or gas burners 14 providing hot gases for drying and also carries hopper 15 for feeding particulate material to drier 1. The cooler comprises a cylindrical extension 21 welded on to drum 1 and supported on and driven by pneumatic tyres 22 through rolling track 23. Bent steel plates 8, 26 rotate the material to be dried and cooled while vanes (not shown) advance it. Filter screens 16 remove dust from the drying and cooling gases prior to their ejection through chimney 20. The dried product overflows into helical hooded ducts 30 thence into the cooler where it contacts air introduced at 27. Then it falls into well 31. Lateral play of the drum may be taken up by friction rollers (6) (Fig. 2, not shown) mounted on vertical axes and bearing against the lateral surface 5a of the rolling track. These may also be pneumatic tyres.
Patent GB-635006-A (GB)
Title: Control means for variable speed gearing
IPC: F16H9/12
Filed: 1947-04-08
Abstract: 635,006. Lathe details. WALLACE, S. April 8, 1947, No. 9348. Convention date, June 17, 1946. [Class 83 (iii)] [Also in Group XXIV] The speed of a lathe chuck 87 is controlled automatically in accordance with the radial position of a tool 88 by the lateral movement of the cross slide 83 acting through a lever 89 on the control member 86 of an expanding- pulley gearing (see Group XXIV) mounted in the lathe drive. The pivot point 90 of the lever 89 is adjustable on the lathe frame. A manual control handle 85 for the gearing is provided.
Patent GB-1404927-A (GB)
Title: Photosensitive polymers
IPC: C08F8/14
Filed: 1974-03-01
Abstract: 1404927 Photosensitive polymers MITSUBISHI CHEMICAL INDUSTRIES Ltd 1 March 1974 [3 March 1973] 9362/74 Heading C3R Photosensitive polymers are obtained by reacting a polymer having active halogen atoms with an α,#-unsaturated carboxylic acid where X and Y are hydrogen, halogen, cyano or nitro, Ar is an aryl group and n is 1 or 2, so that at least some of the halogen atoms are replaced by radicals of the unsaturated carboxylic acid, the reaction being carried out in a polar aprotic solvent and in the presence of a bicyclic amidine of formula where R<SP>1</SP> is an alkylene group which may be substituted by an unreactive group and R<SP>2</SP> is a propylene group which may be substituted by an unreactive group. In examples polyepichlorhydrins are reacted with cinnamic acid in the presence of 1,8-diazabicyclo (5,4,0)undecane-7 and 1,5-diazabicyclo (4,3,0) nonene-5.
Patent GB-856234-A (GB)
Title: Quick-closing valve
IPC: F16K1/20
Filed: 1959-03-18
Abstract: 856,234. Valves. SVENSKA FLAKFABRIKEN A.B. March 18, 1959 [March 20, 1958], No. 9371/59. Class 135. A quick-closing valve, e.g. for ventilating ducts, comprises a valve closure member 4 pivoted centrally thereof on a stem 7 which is springily carried on a rotatable arm 6 rotated by a lever 11 through a pair of toggle links 13, these links being operated by a member connected to the knuckle 12 thereof-e.g. the ram of a compressed-air actuating cylinder 15-and being arranged to swing slightly past their deadcentre position to lock the valve closed. Stem 7 extends loosely through the arm 6 and carries an interposed pack of dished spring washers 10. The closure member is biased against the arm by a spring 16. An annular raised portion 17 of the valve seat is contacted by a resilient gasket 18 on the closure member. It is stated that the compressed-air cylinder 15 may be replaced by means utilizing the force of gravity for the closing of the valve.
Patent GB-1163204-A (GB)
Title: Improvements in or relating to Composite Structures
IPC: C08J9/00
Filed: 1967-02-28
Abstract: 1,163,204. Laminates. PIRELLI S.p.A. 28 Feb., 1967 [16 March, 1966], No. 9403/67. Heading B5N. A method of manufacturing a composite structure for use as a seat covering, covered upholstery, or other outer covering, and comprising a covering layer consisting of or containing a polyvinyl chloride resin and a layer of flexible expanded polyurethane resin material, comprises the steps of mixing a filler consisting of at least one polymer or copolymer of a vinyl compound in the form of a plastisol or a plasticized powder, with the polyether or polyester component of the polyurethane resin material, reacting the mixture with an isocyanic compound in the presence of a catalyst, a stabilizer for the expanded resin material and a blowing agent, allowing the polyurethane resin material so formed to expand to form a layer, covering the expanded layer so formed with the covering layer, and joining the layers by high-frequency welding. As described, the covering layer is of P.V.C. sheet or a fabric coated with P.V.C. resin, and the polyurethane material contains 5-70% preferably 50-70% by weight of the filler. A fabric, which may be vinyl resin coated, or a polyethylene sheet, may be adhered by the high-frequency welding to the opposite face of the polyurethane material to the covering layer. Of the materials used in the polyurethane foam mixture the polyester may be a condensation product of an aliphatic or aromatic acid with a glycol or polyol, the polyether may be a polyhydroxyl compound, e.g. a polyethylene-polypropylene glycol or polypropylene glycol type condensation product, or a condensation product of a triol, e.g. glycerol or trimethylolpropane with propylene glycol, or a condensation product of an amino derivative, e.g. ethylene-diamine, with propylene oxide; the isocyanic compound may be a mixture of 2,4- and 2,6-tolylene diisocyanate; the catalyst may be a tertiary amine, or a tin compound, e.g. the ethyl hexoate; the stabilizer may be a silicone compound, and the blowing agent may be water containing if desired methylene chloride. The filler may be P.V.C., vinyl acetate-vinyl chloride copolymer, vinyl chloride-vinylidene chloride copolymer, or an acrylonitrile polymer or copolymer, and may be obtained by emulsion or suspension polymerization.
Patent GB-831219-A (GB)
Title: Universal joint and process for making same
IPC: B29C45/14
Filed: 1957-03-22
Abstract: 831,219. Making ball joints. DURKOPPWERKE A.G. March 22, 1957 [March 31, 1956], No. 9445/57. Class 83 (2). [Also in Group XXV] A spherically convex swivel member 1 is held concentrically in a slightly larger spherically concave socket member 3, the space between them is filled by moulding a layer 2 of plastic bearing material therein, and after the material has set the cavity it encloses is enlarged by displacing the swivel member relative to the combination of layer and socket member to provide play therebetween. The annular socket has flared ends 3<SP>1</SP> which just clear the swivel when it is inserted axially, and the bearing material, which may be a polyamide or polyurethane, is injected through radial bores 4 in the socket. The assembly of socket, swivel and hardened bearing layer is then placed in a fixture 5 having an annular cavity with a diameter corresponding to the ultimate outer diameter of the socket, and the swivel is worked alternately in both axial directions by means of a ram 6 until the required expansion of the layer and socket, which is of the order of several hundredths of a millimetre, is obtained. Specification 730,329 is referred to.
Patent GB-189397-A (GB)
Title: Improvements in or relating to the driving mechanism of motor vehicles
IPC: B60K17/36
Filed: 1922-04-01
Abstract: 189,397. Deakin, C. E. April 1, 1922. Motor-cars.-A motor vehicle with six or more wheels has the four rear wheels 3, 4 driven by .means of gearing 6 situated between the rear axles, and longitudinal shafts 13, 15 extending fore and aft to their respective axles. The propeller shaft 5 passes above the shaft 13 and drives the shafts 13, 15 by means of the bevel gearing shown in Fig. 3, or differential gearing may be provided between these shafts in the gear-box 6. Differential gearing 14, 16 is preferably provided on the driving axles, but one or both of the axles may be driven without differential gearing.
Patent GB-399220-A (GB)
Title: An automatic remote controller for starting and stopping internal combustion engines
IPC: F01L13/00
Filed: 1932-04-02
Abstract: 399,220. Starting prime movers. LISTER & CO., Ltd., R. A. and HARRISON, W. M., Victoria Works, Dursley, Gloucestershire. April 2, 1932, No. 9477. [Class 38 (iv).] In an electric starting system for an internal-combustion engine of the compression - ignition type, closure of a switch M energizes windings G, 56 and 53, over a thermostatic latch switch H, the circuits of relays 56 and 53 also including a series cut-out D and a series thermostatic cut-out K energized by the voltage of the generator C, the winding G operating to permit opening and control of the throttle or fuel pump manually or from the engine governor, winding 56 closing the circuit of a winding N which operates a valve to reduce the compression space in the cylinder and winding 53 closing the circuit of the starting motor A. When the engine fires and comes up to speed the voltage of the generator C breaks the circuit of the windings 53, 56 and of the thermostatic latch 47 at 42 and also opens the thermal switch K at 44. Should the engine fail to start within a predetermined time the latch 47 is lifted and de-energizes all the circuits at 46. Restarting can then only be effected after manual closure of the latch switch 46. If the engine stalls during normal running, the switch 42 closes, but the time-lag in the closure of the switch 44 due to cooling thereof is such that the coil 49 is allowed to heat up and open the switch 46 before the switch 44 so that the starting circuits are de-energized and the fuel supply cut off. Specifications 352,591 and 384,360 are referred to.
Patent GB-548030-A (GB)
Title: Improvements in and relating to electric circuit interrupting devices
IPC: H01H85/38
Filed: 1941-07-30
Abstract: 548,030. Fusible cut-outs. BRITISH THOMSONHOUSTON CO., Ltd. July 30, 1941, No. 9711. Convention date, Aug. 2, 1940. [Class 38 (i)] In order to prevent a too rapid current decay giving rise to a voltage surge when the main fuse element 33 fuses, an auxiliary element 35 is provided in parallel with the main element but having an insulating link 36 to prevent current flowing therein until the rising voltage breaks down the gap and the secondary element fuses after a short delay. The two elements are wound on a core 24 of X-shaped section enclosed in non-gas-producing granular material 27 in a tube 20. The main element has beads 34 enclosing short sections to retain the heat and promote fusion. Each element may consist of several wires to increase current capacity. The auxiliary element is of high resistance and high temperature coefficient so as to maintain a resistance in the circuit and lessen the second voltage surge when the auxiliary element fuses. The auxiliary element may be made up of wires of different diameter or resistance in series so that it fuses in two stages.
Patent GB-838571-A (GB)
Title: Process of purifying exhaust gases formed in the production of artificial fibres by the viscose process
IPC: B01D53/52
Filed: 1958-03-26
Abstract: Exhaust gases formed in the viscose process are contacted with an alkaline ferric hydroxide suspension in a purifying tower; the gases are withdrawn from the tower, after a contact time of less than 30 seconds and an uptake at the most 20 grammes H2S per 100 grammes of ferric hydroxide, through a pipe in which atmospheric oxygen is blown or sucked; the suspension is then conveyed to a storage tank with further introduction of air, during which the regeneration of the suspension takes place with formation of sulphur; the suspension, after separation of the sulphur and, if required after addition of ferric hydroxide, is returned to the purifying tower.  Examples of the reaction, which may take place in co- or counter-current, contain details of concentration of ferric hydroxide suspensions, pH control, rate of gas flow, amount of the air injected, and treatment times. The ferric hydroxide suspension generally contains only particles substantially under 40 microns.ALSO:Exhaust gases formed in the viscose process are contacted with an alkaline ferric hydroxide suspension in a purifying tower; the gases are withdrawn from the tower, after a contact time of less than 30 seconds and an uptake at the most 20 grammes H2S per 100 grammes of ferric hydroxide, through a pipe in which atmospheric oxygen is blown or sucked; the suspension is then conveyed to a storage tank with further introduction of air, during which the regeneration of the suspension takes place with formation of sulphur; the suspension, after separation of the sulphur, and, if required, after addition of ferric hydroxide, is returned to the purifying tower.  Examples of the reaction, which may take place in co- or counter-current, contain details of concentration of ferric hydroxide suspensions, pH control, rate of gas flow, amount of the air injected, and treatment times.
Patent HU-T50342-A (HU)
Title: Process for producing n-/5,6,7,8-tetrahydropyrido(3,3-d) pyrimidin-6-yl-alkanoyl/-glutamic acid derivatives and pharmaceutical compositions comprising same
Inventor: SHIH CHUAN
IPC: A61K31/505
Filed: 1989-05-25
Abstract: A compound selected from the group consisting of a glutamic acid derivative of the formula: <CHEM>  in which:  R<1> is -OH or -NH2;  R<2> is hydrogen or a carboxy protecting group; R<3> is a carbon-carbon bond, alkylene of 1 to 4 carbon atoms, cyclohexylene, or <CHEM>  R<4> is hydrogen or an amino protecting group;  Q is -S- or -O-;  R<5> is hydrogen, chloro or fluoro; and  the configuration about the carbon atom designated * is S; and the pharmaceutically acceptable salts thereof. Also disclosed is a method of combatting neoplastic growth in a mammal and a pharmaceutical composition for combatting neoplastic growth in a mammal making use of the above compound.
Patent HU-T44520-A (HU)
Title: Process for producing pyrimidine derivatives
Inventor: VEDRES ANDRAS
IPC: C07D239/50
Filed: 1986-07-10
Abstract: A pyrimidine derivative of the formulae (Ia), (Ib) and (Ic), <IMAGE>  (Ia)   <IMAGE> (Ib)   <IMAGE> (Ic)  wherein R stands for an alkyl group group with 1 to 6 carbon atoms or an aryl group optionally substituted by halogen atom; and X stands for chlorine or bromine atom or an arylsulfonyloxy group optionally substituted by 1 to 3 lower alkyl groups. The subject pyrimidine derivatives are intermediates for preparing 6-amino-1,2-dihydro-1-hydroxy-2-imino-4-piperidinopyrimidine.
Patent HU-T60168-A (HU)
Title: Applying apparatus
Inventor: ZIMMER JOHANNES
IPC: D21H23/00
Filed: 1988-05-18
Abstract: The doctor device has a profile member pivotally mounted to a retaining member that is carried on a mount. Vertical movement of the mount causes angular displacement of the profile member thereby changing the material applicaton area disposed adjacent and upstream of the doctor. The doctor is either a doctor blade or roll doctor. In the case of a roll doctor, a receptacle is formed in the profile member and the roll doctor is magnetically retained with the receptacle. During application of a material to an application surface with the roll doctor, the roll doctor is magnetically attracted to the application surface by a second magnetic device located beneath the application surface or work surface.
Patent HU-T42948-A (HU)
Title: Process for production of medical compositions suitable for transdermal treatment containing as active substance derivatives of 2-amin-3-aroil-benzol-acetic acid
Inventor: POSER RICHARD GEORGE
IPC: A61K9/06
Filed: 1986-10-27
Abstract: Pain and or inflammation is treated by transdermal administration of 2-amino-3-benzoyl-benzeneacetic acids, salts and esters having the formula 
<CHEM>
 wherein R<1> is hydrogen, loweralkyl or a pharmaceutically acceptable cation; R<2> is hydrogen, halogen, loweralkyl or loweralkoxy; R<3>, R<4> and R<5> are hydrogen or loweralkyl; X is hydrogen, halogen, loweralkyl, hydroxy, loweralkoxy, nitro, trifluoromethyl or loweralkylthio; Y is hydrogen, loweralkyl, loweralkoxy, nitro or trifluoromethyl and hydrates and alcoholates thereof.
Patent HU-T43547-A (HU)
Title: Process for purifying sewages
Inventor: DRACHIKOVA EVGENIA S
IPC: C02F11/02
Filed: 1984-12-13
Abstract: Sludges resulting from biological purificn. of waste waters which comprise activated sludges or mixed sludges contg. activated sludges and sludges from the preclarification stage are treated. The treatment also includes aerobic stabilisation, compacting and dewatering of the sludge. Aerobic stabilisation takes place in the stabiliser. The level of the sludge is conserved- according to equation (I); hi is the sludge level at time i; Qi is the vol. of sludge to be stabilised at a given time i; in m3/day. P is the nominal time of aerobic stabilisation (day); Fi is the effective area in m2 of the stabiliser at time i; k is dimensionless constant of value 1.05-1.08; Tp is nominal temp. (deg.C) of the sludge in the stabiliser; Ti is sludge temp. (deg.C) at time i.
Patent ID-21923-A (ID)
Inventor: MEWES FRANK
IPC: G05D7/06
Filed: 1997-11-13
Abstract: A flow regulation control valve for regulating volume flows in pipelines including valve housing with a flow chamber, a control or shut-off member arranged in the flow chamber for setting a desired flow state through the valve, at least one sensor arranged in the vicinity of the flow chamber of the valve housing for sensing a characteristic value of the flow through the flow chamber, an electronic data store or memory for storing specific characteristic values of the housing of the flow regulation control valve, and an evaluation unit which is connected to the sensor and determines the volume flow from the values measured by the sensor with reference to the characteristic values of the valve stored in the data store.
Patent JP-H10200515-A (JP)
Title: Clock synchronization system
Inventor: SHINODA MASAHIRO
IPC: G06F1/12
Filed: 1997-01-08
Abstract: PROBLEM TO BE SOLVED: To establish clock synchronization between mutual circuit components, consisting of a high speed digital circuit system by correcting automatically a delay time due to a clock signal line. SOLUTION: An output clock of a PLL circuit of a master 2 is made an input to a PLL circuit 31 of a slave 3 via switches 25, 25, a clock signal line 101 and a switch 32. When the PLL 31 is synchronized, the switch 32 is switched to return an oscillated clock from the PLL circuit 31 to the master 2 via the clock signal line 101. In the master 2, the switches 25, 26 are switched, and a phase compactor 27 compares a phase of the returned clock with a phase of an oscillated clock of a PLL circuit 24 and by using a phase comparison signal the phase control of the PLL circuit of the slave 3, is conducted. Thus, a delay time of the clock signal line 101 is automatically adjusted, and both the PLL circuits 24, 31 are operated in phase synchronization.
Patent JP-S6071917-A (JP)
Title: Article supply device
Inventor: FURANKU EDOUIN PURINGURU
IPC: B65G65/48
Filed: 1984-01-06
Abstract: PURPOSE:To prevent overflow of articles to be weighed by crushing articles to be weighed if an apparent specific gravity, which is calculated by dividing the weighed signal of a weighing machine by a prescribed capacity, is larger than a reference specific gravity. CONSTITUTION:In a subtractor 78, a standard weight is subtracted from the sum of weighed signals of weighing machines 6a and 6b to calculate a deviation DELTA. If the apparent specific gravity is small, that is, there are many large pieces of articles in weighing machines 6a and 6b and the sum of weighed signals of weighing machines 6a and 6b is considerably lighter than the standard weight, this deviation DELTA is considerably large. An allowable deviation A set in an allowable deviation setter 80 is subtracted from the deviation delta by a subtractor 82 to calculate a secondary deviation delta. Articles supplied to a tank 24 are crushed finely by a crusher 76 if the secondary deviation is large but articles are crushed roughly by the crusher 76 if the secondary deviation delta is small.