baber/WOPTO huggingface dataset:
Patent GB-1212136-A (GB)
Title: Enzyme production and purification
Inventor: WAGNER OTTO
IPC: C12N9/82
Filed: 1968-12-24
Abstract: 1,212,136. L-asparaginase. FARBENFABRIKEN BAYER A.G. 24 Dec., 1968 [27 Dec., 1967; 6 April, 1968 (2); 6 May, 1968; 16 May, 1968], No. 61394/68. Heading C3H. A process for the purification of L-asparaginase comprises mixing an impure aqueous solution of L-asparaginase with a polyalkylene glycol to form a precipitate containing L- asparaginase, separating the precipitate from its supernatant liquid and separating the L- asparaginase from the precipitate. The glycol may be polyethylene or polypropylene glycol. The precipitation may be in the presence of an amide or salt thereof, e.g. urea, guanidine, guanidine hydrochloride, formamide or acetamide. The asparaginase may be separated from the glycol by solution in water and reprecipitation with acetone, di-isopropyl ether or an alcohol, or by dialysis, or by drying the precipitate and extracting the glycol with acetone. The L-asparaginase may thereby be obtained in crystalline form. The asparaginase may be that obtained by culture of Escherichia coli.
Patent GB-1340690-A (GB)
Title: Method of and apparatus for hydraualically conveying solid  particulate material
IPC: E02F7/10
Filed: 1970-12-29
Abstract: 1340690 Conveying solids in liquids W A SCHOLTENS CHEMISCHE FABRIEKEN N V KONINK LUKE MAATSCHAPPIJ TOT HET UITVOEREN VAN OPENBARE WERKEN ADRIAAN VOLKER N V and COOPERATIEVE VERKOOP-EN PRODUKTIEVERENIGING VAN AARDAPPELMEEL EN DERIVATEN AVEBE G A 29 Dec 1970 [30 Dec 1969] 61612/70 Heading F1R The settling rate of dredged material carried in water through a pipeline is reduced by adding polymeric bio-colloids to the solid/ liquid suspension. These bio-colloids may consist of gums or enzyme preparations formed by microorganizms which are obtained from solutions of glucose, saccharose or starch, or comprise xanthomonasgum, phosphomannan or scleroglucan. The water 3 together with xanthomonasgum from a valve controlled supply 9, is added to a tank 1 containing dredged material 2 and the resultant mixture is pumped through a pipeline 6 to a destination 7, separated water being recycled through a pipe 8.
Patent GB-1213900-A (GB)
Title: Method of treating the internal surface of glass capillaries
IPC: C03C15/00
Filed: 1968-12-31
Abstract: 1,213,900. Etching. CESKOSLOVENSKA AKADEMIE VED. 31 Dec., 1968 [15 March; 1968], No. 61810/68. Heading B6J. [Also in Division C1] Glass capillaries for gas chromatography have their inner surfaces etched by gas or vapour, the gas a vapour, at a temperature at which it is unreactive, being introduced into the capillary and heated to a temperature and for a time sufficient to cause the etching. Preferably nitrogen, saturated with the gas, is introduced into the capillary, the capillary sealed at both ends and then heated to a temperature greater than 100‹ C., for example 450‹ C., for at least 30 minutes. After cooling, the capillary is flushed with an inert gas such as nitrogen while heated above 100‹ C. Etching gases suggested are gaseous hydrogen chloride, dichloromethane vapour, trifluoroethyl methyl ether vapour or an organic halogen derivative when on heating gives off gaseous hydrogen chloride or hydrogen fluoride.
Patent GB-641568-A (GB)
Abstract: 641,568. Compound sheet materials. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 3, 1947, No..31892. [Class 140] A solidified or extruded molten film of a polythylene composition having a viscosity of more than 700 poises at a temperature of 190‹ C. is brought into contact with a coated surface of a sheet material bearing either a solidified or a molten coating of a polyethylene composition having a viscosity at 190‹ C. of less than 700 poises, and bonded thereto by the application of heat and pressure. The material may be paper, wood veneer and woven or knitted fabric sheet formed from fibres of cellulose, cellulose derivatives, synthetic resins, asbestos, and glass, wire gauze, regenerated cellulose, metal foil, tin plate. The pressureapplying surface may be embossed or engraved to produce an embossed pattern on the compound material ; it may be treated with the sodium salt of sulphated sperm oil alcohols, silicone grease, or polytetrafluoroethylene, or a layer of regenerated cellulose or metal foil is interposed between it and the film, to prevent them sticking together. Transparent windows may be produced in the compound material by cutting away window areas from the sheet before it is bonded to the film. The compound material may be employed in the manufacture of tank-linings, bottle cap seals, leathercloth, food-packages, kegs, lamp-shades, liquid containers, book-covers, and glass substitute. As shown, sheet material which may be a printed fabric 1 is coated with polythene 2 by means of a doctor knife 3 and roller 4 and is tensioned by rollers 5 as it passes around a warm roller 6 so that a molten film 7 of polythene issuing from an extrusion orifice 8 is bonded to the fabric.
Patent GB-654167-A (GB)
IPC: G07B11/00
Abstract: 654,167. Ticket-issuing machines; totalizators. UNION TOTALISATOR CO., Ltd., and HANDLEY, J. Nov. 14, 1947, No. 30250. [Classes 106 (i) and 106 (iii)] A ticket printing and issuing machine for use with totalizators has a Total counter, a Win counter, a Place counter and a Forecast counter, two driving means for the Total counter to permit twice the number of units to be registered on the Total counter for a " Win and Place " bet, and ticket printing mechanism for printing the stake, the class and the competitor number or symbol simultaneously on a single ticket. The ticket - issuing machine of Specifications 591,223, 591,260 and 610,333 is modified so that an " each way " bet (Win and Place) can be made on one ticket. An additional key marked " W & P " is inserted in the middle row of the keyboard and the corresponding type wheel carries an additional similarly marked type face. Depression of a stake key in row "1,"  the W & P key in row " 2 " and a competitor key in row " 3 " effects registration of the amount in the Win total, Place total, Competitor win total and Competitor place total aggregators in the control room. The ticket-issuing machine has four counters 26, 25, 24 and 23, Fig. 4, for forecast, place win and total respectively and during an " each way " transaction the total counterdriven wheel 40 is driven at double speed so that this counter registers double the value of the depressed stake key and the place and win counters 24 25 register the value of the depressed stake key. For this purpose the drive to the Total counter 23 includes a gear 40 carried by a frame 39 the position of which is determined by the position of a pin 37, Fig. 2, in a cam slot 27<SP>1</SP> in plate 27 carried by the slide bar 9 positioned by the second row of keys of the keyboard. The gear 40 is normally driven by a gear 41, but upon depression of the " W & P " key the slide bar 9 is moved to effect through a rocker 38 movement of the frame 39 and the gear 40 is disengaged from the gear 41 and brought into mesh with the gear 42 and is driven thereby at twice its normal speed.
Patent GB-681841-A (GB)
IPC: F16C33/14
Abstract: 681,841. Coating with metals; aluminium alloys. GLACIER METAL CO.. Ltd. April 13, 1951 [June 6, 1950], No. 14098/50. Classes 82(i) and 82(ii) [Also in Group XXII] In a method of making bearings or bearing liners comprising a soft aluminium alloy bonded to a backing of a hard aluminium alloy or vice versa, the backing member is heated to a temperature below its melting point and a layer of molten lining alloy spread on so that a strong bond is obtained by a limited diffusion of one alloy into the other. In one example a strip “-inch thick of hard aluminium alloy containing 4.4 per cent copper, 1.5 per cent magnesium and 0.6 per cent manganese is immersed into molten tin at 350‹C and the oxide surface broken up by means of a rotary steel wire brush to ensure thorough tinning. The tinned strip is heated to 450‹C and a soft aluminium alloy containing 20 per cent tin and heated to between 750‹-800‹C is spread on by a nozzle to a depth of about #-inch. The composite strip may be cooled by water sprays and is cut into blanks and allowed to age for four days. Alternatively the strip may be heat-treated at about 465‹C for four hours before quenching. The bearings or liners produced may be temper-hardened by heating to about 135‹C for 15 hours. In a modification a blank of hard aluminium alloy containing 5 per cent zinc, 2¢ per cent copper, 2¢ per cent magnesium, 1 per cent nickel, 0.3 per cent titanium is tinned as above described, placed in a die and the molten soft alloy cast thereon. The properties of the composite strip may be improved by mechanical working, for example by rolling to obtain a 20 per cent reduction in thickness.
Patent GB-692117-A (GB)
IPC: H04M1/65
Abstract: 692,117. Recording telephone messages. GASSMANN, V. O. Feb. 9, 1951 [Feb. 10, 1950; Jan. 16, 1951], No. 3233/51. Drawings to Specification. Class 40 (iv). [Also in Group XL (c)] A radio telephony receiver comprises tuned relays selectively responsive to detected lowfrequency calling signals acting during a call to operate a contactor switch putting a power amplifier and recorder in circuit so that a telephone message is recorded, e.g. magnetically on wire by the selected receiver. The relays may be vibrating reeds which on predetermined call frequencies being successively demodulated operate slow release holding relays which when in pulled up position together energize the operating solenoid of a pawl and ratchet operating by one step a rotary contactor switch. Signals of same frequency at the end of a message further rotate the latter so switching off the amplifier and recorder, and so on alternately. An indicator lamp lights up when the first message is being recorded and is maintained lit by a polarized relay after the first message until subsequently the contactor is moved to play back position manually; also a bell may be rung. Disc or optical recorders may alternatively be employed. The message may be transmitted backwards or at an excessive speed for secrecy.
Patent GB-709068-A (GB)
IPC: F16L27/12
Abstract: 709,068. Pipe joints. FOSTER BROS., Ltd. July 11, 1952 [July 12, 1951], No. 16508/51. Class 99 (1). An expansion joint for pipes comprises telescoping tubular members 1, 4 of which the outer member 1 is provided with an extension 14 of larger diameter than the inner member 4 and with a gland 9, and the inner member is provided with a ringed piston 8 to engage the member 1 and be engaged by the gland, and at its outer end a flange 13 working piston-like within the extension 14. Openings 16 for access to the gland and a stop flange 15 are provided.
Patent GB-2003565-A (GB)
Title: Hydraulic brake system for a motor vehicle
IPC: F16D65/22
Filed: 1978-09-01
Abstract: An hydraulic brake system for a motor vehicle has means (7, 10, 11, 12, 17, 18) for reducing or limiting the force acting on at least a respective brake or brakes (13) of the system. These means (7, 10, 11, 12, 17, 18) are contained within the piston/cylinder actuator unit of the respective brake(s) such that the piston (2) of the unit is embraced by a piston braking device (10) which obstructs or prevents axial displacement of the piston (2) in the cylinder when a predetermined pressure therein is exceeded. <IMAGE>
Patent GB-2004848-A (GB)
Title: Tamper-indicating closures
IPC: B65D55/08
Filed: 1978-09-18
Abstract: Portable container for beer under pressure has its top opening closed by a screwed-in valved spear 18, 19. The container opening is provided with a frangible tamper-proof end ring 35 having a skirt 36 secured by crimping to the container. The spear cannot be removed without breaking away an inner rim portion 33 frangibly connected to the end ring 35 and thereby providing visual evidence of tampering. <IMAGE>
Patent GB-2007863-A (GB)
Title: Process for developing two- component diazotype materials
IPC: G03C5/18
Filed: 1978-11-03
Abstract: To develop, after image-wise exposure, a two-component diazotype material in which the light sensitive layer is on a base material which is pervious to ammonia or to volatile amines, without the production of excess ammonia resulting in prints which are liable to have an objectionable odour, the developing process comprises applying an aqueous solution of an ammonium salt, or a salt of a volatile amine with an acid, having a dissociation constant in the range 10<-3> to 10<-7> to the surface of the base material remote from the light-sensitive layer, and subjecting the then moist material to heat to generate sufficient ammonia or amine to effect development.
Patent GB-2011173-A (GB)
Title: Semiconductor device and method of producing the same
IPC: H01L21/285
Filed: 1978-12-08
Abstract: In a semiconductor device, comprising an insulation layer 20 covering at least a base region 12 formed in a semiconductor substrate 10, base electrodes comprising polycrystalline Si layers 36a, 36b and metal layers 52a, 52b are formed in openings in layer 20, and an emitter region 16 is contacted by a polycrystalline silicon layer 34 and a metal layer 50 formed in another opening in layer 20. The emitter region 16 may be formed by diffusing an impurity through the undoped poly-Si layer 34 before applying layer 50. <IMAGE>
Patent GB-2012971-A (GB)
Title: Apparatus and method for testing gas-tightness of hollow bodies
IPC: G01M3/22
Filed: 1979-01-19
Abstract: A hollow body 5 to be tested is mounted on a carrier 4 and the carrier is moved along a conveyor 6 onto supports 7 on a base plate 3. A hood 2 is then lowered onto the base plate 3 forming a sealed test chamber 1 enclosing the body 5 on the carrier 4. An external connection is made at 17 to the interior of the body 5, and a differential pressure is established across the wall of the body e.g. by evacuating the chamber 1 surrounding the body 5. A test gas is introduced into the region at higher pressure e.g. the interior of the body 5. A detector specific to the test used is connected to the other region e.g. the chamber at 20. At the conclusion of the test, the hood 2 is raised and the carrier 4 with body 5 still mounted thereon is withdrawn along a conveyor 8. <IMAGE>
Patent GB-2013878-A (GB)
Title: Method and apparatus for classification of cells
IPC: G01N33/49
Filed: 1979-02-02
Abstract: In a method and apparatus for measuring characteristics of cells, e.g. red blood cells to define a patient's blood, parameters of cell characteristics may be analysed for resemblance to predetermined reference characteristic values for a blood cell pathological condition such as a specific anemia, or for a normal blood. A report may be generated showing such resemblance to an anemia or to a normal blood, or showing parameters of a multivariate dispersion of distribution for a sub- population of biconcave cells, an indication of skewness of the distribution of shape variations in central pallor size; the proportion of abnormal kinds of cells found, and closeness of blood to several specific anemias. To expedite the system, a plurality of microprocessors 22, 28 may be employed, one, 28, controlling the imaging means 14, 24, 30 and the summing of measured characteristics while one or more others 22 are measuring characteristics and analyzing the digitized image signals. An improved method of measuring central pallor size is provided. <IMAGE>
Patent GB-2014185-A (GB)
Title: Catalytic hydrorefining of biologically treated mineral oil
IPC: C10G32/00
Filed: 1979-02-05
Abstract: Biologically treated mineral hydrocarbon oil distillate (B) (e.g. a biologically treated petroleum, diesel oil or gas oil) is blended with a straight run fraction (C) having a boiling range which is substantially the same as that of the distillate (B) and the blend (A) is hydrorefined using a catalyst containing a cobalt and/or molybdenum and/or nickel; the blend (A) having an interfacial tension with respect to distilled water of more than 10 dynes/cm. The blend (A) suitably contains 10-80% by weight of the fraction (C).
Patent GB-2013757-A (GB)
Title: Improvements relating to tunnelling
IPC: E21D11/15
Filed: 1979-02-21
Abstract: A lined tunnel 1 is provided with a deformable intermediate layer 7 of a compressible material between the tunnel lining 3 and the surrounding ground 2. In hard grounds, the ground movements necessary to permit redistribution of stress in the ground around the tunnel (whereby the ground becomes virtually self-supporting) are absorbed by the compressible intermediate layer, thereby preventing the generation of excessive localised or general loading on the lining. The compressible material may be injected into the clearance formed between the erected lining 3 and the surrounding wall of the tunnel 1, or may be formed simultaneously with the erection of the lining by constructing the lining from arcuate segments 5 which fit together in the circumferential or axial directions and each of which has attached to its outer face a layer 6 of the compressible material. <IMAGE>
Patent GB-2017087-A (GB)
Title: Process for the preparation of xanthone derivatives
IPC: C07D311/86
Filed: 1979-03-02
Abstract: A process for the preparation of compounds of general formula   <IMAGE> (wherein R represents a hydrogen atom or an alkyl radical containing from 1 to 9 carbon atoms and R1 represents an alkyl radical containing from 1 to 5 carbon atoms) which comprises cyclising a compound of formula II,   <IMAGE> (wherein R and R1 are defined above and R2 and R3, which may be the same or different, each represents an esterifying group) followed, if required, by hydrolysis to the free acid.
Patent GB-2016477-A (GB)
Title: HGI-glycoprotein and isolation thereof
IPC: C07K14/52
Filed: 1979-03-19
Abstract: A"colony-stimulating factor", which is capable of stimulating activity of human bone marrow cells to proliferate and differentiate, thereby forming granulocytes, and is a glycoprotein isolated from human urine which glycoprotein has a molecular weight of from 75,000 to 90,000 dalton inclusive as determined by gel filtration. The isolation from human urine includes concentrating the urine with respect to proteins contained therein, removing impurity by adsorption on a cation exchanger, and further purifying by ion exchanging chromatography on anion exchanger, and gel filtrating chromatography with a highly cross-linked polymer gel. The glycoprotein is stable in the presence of a stabilizer such as albumin or urinary proteins, against heat-treatment for virus-inactivation and can be used as a leukopenia curative without fear of viral infection therefrom.
Patent GB-2022297-A (GB)
Title: Improvements in or relating to electronic timepieces
IPC: G06Q50/22
Filed: 1979-05-23
Abstract: An electronic timepiece comprises means for displaying time and calendar data digitally and means for displaying biorhythm cycles. In Figure 3, 36 is a calendar counter, 38 is a day of birth counter, 41 is a second calendar counter while 51 indicates biorhythm cycle counters. A biorhythm cycle display 63 is given by activation of liquid crystal elements along a sine wave curve, in dependence upon the state of a biorhythm cycle counter. Each biorhythm counter merely counts days in correspondence with the calendar counter 41, there being a 23 day cycle counter for 'physical' biorhythm, a 28 day cycle 'sensibility' counter and a 33 day cycle 'intelligence' counter. These counters are selectively coupled to the display, one of display elements P, S or indicating the biorhythm counter selected. The zero crossing points on the sine curve indicate days when special care is needed and outputs from the selected counter on that day cause an audible alarm and the flashing of element P, S or I. Present, past and future biorhythm cycles can be displayed. <IMAGE>
Patent GB-2055886-A (GB)
Title: Overbased magnesium phenates
IPC: C10M149/02
Filed: 1979-07-27
Abstract: Highly basic magnesium phenates are prepared by a process in which a magnesium alkoxy-alkoxide mixed with alkoxy-alcohol and a non- volatile oil is hydrolysed in the presence of a hydrocarbyl-substituted phenol or metal phenate which may be sulphurised and the mixture then carbonated in which the quantity of water added for the hydrolysis is at least one mole for each gram atom of magnesium present in excess of that required to neutralize the phenol and the total amount of water in all the steps is from 2.5 to 4 moles for every gram atom of excess magnesium. Sulphonates also may be present. The product has an improved viscosity.
Patent GB-2027709-A (GB)
Title: Perfluorallyl Fluorosulfate and its Sultone and Processes for their Preparation
IPC: B01J27/12
Filed: 1979-08-07
Abstract: Perfluoroallyl fluorosulfate and its sultone are prepared by reacting hexafluoropropene with sulfur trioxide in the presence of a trivalent boron compound. The perfluoroallyl fluorosulfate product can be homopolymerized or copolymerized with various fluoroethylenes to form resins useful as ion exchange resins or acid catalysts.
Patent GB-2034216-A (GB)
Title: Mouldless Casting
IPC: B22D27/02
Filed: 1979-08-10
Abstract: Molten metal is poured from a spout (16) into a starter block (22) and is contained by electromagnetic pressure induced by an inductor (11). The electrical resistivity of the bottom block at ambient temperature is closely matched to that of the metal at a temperature within the range 0 DEG  to 100 DEG F below the solidus temperature of the metal, the two resistivities preferably being in a ratio of less than 1:2. The bottom block has a deeply hollowed out central section to improve start up conditions. The metal is cooled by water fed to its surface from a manifold 12. <IMAGE>
Patent GB-2065289-A (GB)
Title: Hanging arrangement for plate heat exchanger
IPC: F28F3/08
Filed: 1979-12-13
Abstract: In order to simplify handling in certain cases and also to minimise damage to plates during tightening, a top bar (4) for supporting plates (1) of a plate heat exchanger is provided with hanging strips (8) cooperating with hanging eyes (9) on the plates (1). Strips (8) are movably mounted in slots in the top bar and may be retracted to a position wherein the plates are no longer suspended. <IMAGE>
Patent GB-2017895-A (GB)
Title: Tube-coil heat exchanger
IPC: F28F9/013
Filed: 1978-12-08
Abstract: The heat exchanger comprises a tube length arranged as one or more planar tube coils 19 carrying a fluid heat exchange medium and mounted in a framework (e.g. of rectangular construction with sides 1 and 2, top 4 and lateral strips 5-10). The tubing is secured to the framework by supports 23. The end of the or each tube coil is connected to respective inlet and outlet couplings (e.g. manifolds 17 and 18) disposed along one side of the frame. The tubing supports 23 may be provided with recesses (e.g. 24, Fig. 4) into which the turns of each coil are received. The construction is preferably of a non-corrodable material with the coil being PTFE or other fluorinated polymers. The heat exchanger is intended for mounting in a tank. <IMAGE>
Patent GB-2039278-A (GB)
Title: Method of removing impurities from aromatic acids or their salts
IPC: C07C67/00
Filed: 1980-01-07
Abstract: A method of removing impurities from aromatic sulfonic acids or carboxylic acids, or their salts comprises treating a solution of the acids or salts in water with a basic nitrogen- containing polymer compound, separating the flocs from the treated solution, and isolating the pure product.