baber/WOPTO huggingface dataset:
Patent GB-873219-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J5/00
Filed: 1958-11-25
Abstract: The invention comprises 1-dehydro-6-fluoro-9a -halo-21-desoxyhydrocortisone and 1 - dehydro-6-fluoro-9a  - halo - 21 - desoxycortisone, wherein the 9a -halogen atom is chlorine, bromine, fluorine or iodine, and compounds of the formulae: <FORM:0873219/IV (b)/1> wherein R is a hydrocarbon radical containing 1-10 carbon atoms, R1 is hydroxy or keto and X is fluorine chlorine or bromine, and the process of treating 6-fluoro-9a -halo-11b , 17a ,21-trihydroxy-1,4-pregnadiene - 3,20 - dione with an alkyl or aryl sulphonyl halide to obtain the corresponding 21-alkyl or aryl sulphonate of 6-fluoro-9a -halo-11b ,17a 21-trihydroxy-1,4-pregnadiene-3, 20-dione treating the thus produced 21-ester with an alkali metal iodide to obtain 6-fluoro-9a -halo-21-iodo-11b ,17a -dihydroxy-1,4-pregnadiene-3, 20-dione which is reduced, e.g. with zinc dust, sodium thiosulphate, sodium bisulphite, and potassium bisulphite to obtain 6-fluoro-9a -halo-11b ,17a -dihydroxy-1,4-pregnadiene-3,20-dione. If desired the 11-hydroxy group may be oxidised to obtain 6-fluoro-9a -halo-17a -hydroxy-1,4-pregnadiene-3,11,20-trione. Alternatively the removal of the 21-hydroxyl group may precede the introduction of the 9-halo group.  The process is applicable to both the 6a  and 6b -epimers, the 6b  compound being epimerised to the 6a -compound by means of a mineral acid, e.g. hydrochloric acid.  Illustrative products of the invention are 1-dehydro-6a ,9a -difluoro-21-desoxyhydrocortisone, 1-dehydro-6a -fluoro-9a  - chloro - 21 - desoxyhydrocortisone, 1 - dehydro-6a -fluoro-9a -bromo-21-desoxyhydrocortisone, 1 - dehydro - 6a ,9a  - difluoro-21-desoxycortisone, 1-dehydro-6a -fluoro-9a -chloro-21-desoxycortisone, 1 - dehydro-6a -fluoro-9a -bromo-21-desoxycortisone, 6a ,9a -difluoro-11b ,17a ,21-trihydroxy-1,4 - pregnadiene3,20-dione 21-methanesulphonate and 6a ,9a -difluoro - 11b ,17a  - dihydroxy - 21 - iodo - 1,4-pregnadiene-3,20-dione. Specifications 749,201 and 850,833 are referred to.ALSO:Pharmaceutical compositions comprise 1-dehydro - 6 - fluoro - 9a  - halo - 21 - desoxyhydrocortisone, or 1-dehydro-6-fluoro-21-desoxycortisone and a pharmaceutical diluent. They may be employed orally as pills, tablets, capsules, syrups or elixirs, in liquid forms for injectable products and topically as ointments, creams or lotions, with or without coacting antibiotics or germicides.  Specifications 749,201 and 850,833 are referred to.
Patent GB-1213271-A (GB)
Title: Cutting, creasing and scoring of sheet materials
Inventor: FRYER WILLIAM FREDERICK
IPC: B26D9/00
Filed: 1966-08-24
Abstract: 1,213,271. Cutting-out presses. WEBSTER FORDHAM Ltd. 24 Nov., 1967 [24 Aug., 1966], No. 37927/66. Heading B4B. A paper working machine is adapted to cut completely through a sheet of paper from one face thereof and concurrently to score or crease the sheet from the other face. The machine comprises a member holding a cutter, in the form of a knife 10, Fig. 7, having a cutting edge defining a closed curve and holding an anvil 16 with its striking face below the cutting edge, and a platen movable relating to the cutter to bring a sheet of paper mounted on the platen into cutting engagement with the knife, the platen carrying a T-shaped cutting rule 20, Figs. 9, 11, corresponding to the position of the anvil. The rule 20 is preferably fixed to the platen by adhesive and may be interrupted at intervals along its length. Sponge rubber ejectors 14 are provided. The platen may be hinged for angular movement relative to the cutter or may be movable longitudinally relative to the cutter, or may be rotary in which case the cutter is mounted on a reciprocating support. The depth of cut made by the rule may be less or greater than half the thickness of the paper sheet and the cut from the back face of the sheet may be completely therethrough. The rule may have a non-cutting ridge in which case the sheet would be creased. More than one rule and anvil may be provided.
Patent GB-1194537-A (GB)
Title: Improvements in or relating to the Printing of Fabrics
Inventor: FARRER WILLAM GREENHALGH
IPC: D06B11/00
Filed: 1966-08-24
Abstract: 1,194,537. Web-printing apparatus. STALWART DYEING CO. Ltd. 3 Aug., 1967 [24 Aug., 1966], No. 37982/66. Addition to 827,432. Heading B6C. Apparatus for printing fabrics in wet form comprises at least two printing couples of the type described in Specification 827,432, for successive printing on the same side of the web, each pressure roller being driven at the same speed, and means being provided for rotating the pressure rollers independently and hence registering the patterns on the printing rollers which are geared to the pressure rollers. Illustrated is a three-colour press in which printing rollers F 1 , F 2  and F 3  are geared to pressure rollers G 1 , G 2 , G 3  by means of gears H, I. Chain drive J connects sprockets K 1 , K 2  while drive J 2  connects sprockets K 2 , K 3  carried on the respective pressure rollers, the main press drive being to roller G 2  only. On turning hand wheel A, a plate D is moved along a line normal to the web, which causes disc E mounted on pivot M to rotate; pinions C, also carried on disc F, rotate with it, and maintain constant tension in drive J, the torque being applied by torsion spring D. The movement of the pinions C also causes the chain J to move and rotate sprocket K, thus revolving rollers G and F, while the central rollers G 2 , F 2  remain stationary because of the torque applied by spring O 2  of the second assembly. Similarly roller F 3  can be rotated by hand wheel A 2 , and therefore the patterns can be aligned as desired before printing.
Patent GB-344825-A (GB)
Title: Improvements in electric signalling cables
IPC: H01B11/00
Filed: 1929-12-11
Abstract: The armouring wires of a submarine cable are formed of a non-magnetic alloy containing 72,88 per cent of iron, 0,59 per cent of carbon, 3,95 per cent of manganese, 6,07 per cent of chromium, 9,10 per cent of tungsten, and 7,41 per cent of nickel.  Other suitable alloys comprise 85 per cent of iron, 14 per cent of manganese, and 1 per cent of carbon; or iron with 17 to 20 per cent of chromium, 7 to 10 per cent of nickel, and 0,2 per cent of carbon.  A further alloy, which is first prepared in rod form and drawn partly down to the required diameter, annealed for 15 minutes at 1000 DEG  C., and finally drawn, comprises 81,5 per cent of iron, 12 per cent of manganese, 6 per cent of nickel, and 0,5 per cent of carbon.
Patent GB-1397784-A (GB)
Title: Black lead and production thereof
IPC: C09D13/00
Filed: 1972-08-16
Abstract: 1397784 Extruded carbon composition of controlled porosity; pencil leads PILOT KIKO KK 16 Aug 1972 [19 Aug 1971 25 Aug 1971 3 June 1972] 38128/72 Heading C1A [Also in Division B6] In producing black leads for pencils, including mechanical pencils, a colouring material, preferably graphite, is kneaded with a binder which may include a diluent liquid, and with at least one pore-forming material, the mixture is extruded, at an extrusion speed of at least 4 m./sec., into a rod of appropriate diameter, and then the rod is baked at a temperature of at least 700 C. in a non-oxidizing atmosphere, the temperature during the baking rising from 150 to 300 C. at a rate of 5 C. or less per hour the lead being subjected during and/or after such baking to a treatment to remove at least one pore forming material to produce a desirable uniform distribution of pores within the lead. This lead may have a total pore volume of 20 to 40% of the bulk volume of the lead, and may be impregnated with an oil, fat, or wax to produce a lead of improved properties, e.g. bending strength and blackness. The pore forming material is defined as being (a) an inorganic substance which is soluble in aqueous acid or alkaline solution or water, or is a substance which evaporates or sublimes during the baking step; (b) an organic compound which sublimes at the baking temperature to leave almost no carbon residue, (c) a high polymer which decomposes at the baking temperature to a monomer or oligomer which evaporates leaving substantially no carbon residue, (d) a rosin or rosin derivative which evaporates at the baking temp. to leave substantially no residual carbon. The materials may be added as powders, emulsions, dispersions or solutions to the mixture at the time of kneading. The pore forming material is removed either by evaporating at the baking temperature employed, or by a leaching step on the coded partially baked or completely baked lead. Carbon black, molybdenum disulphide, tungsten disulphide and mica in finely divided form are suggested as black colouring materials. Many examples of suitable pore forming materials are given in the Specification, e.g. metallic zinc, zinc oxide, magnesium carbonate and lead chromate.
Patent GB-1134362-A (GB)
Title: Improvements relating to curable chlorinated polyethylene compositions and their use
IPC: C08L27/00
Filed: 1967-08-18
Abstract: 1,134,362. Resinous laminates. ALLIED CHEMICAL CORP. 18 Aug., 1967 [7 Sept., 1966; 3 May, 1967], No. 38238/67. Heading B5N. [Also in Division C3] Laminates are prepared from sheets of thermoplastic or elastomeric materials, at least one of which is a composition comprising (a) chlorinated polyethylene or copolymer of ethylene with up to 15 weight per cent of propylene or butene and (b) at least 0À5 weight per cent based on the chlorinated polyethylene of a compound containing at least two groups where R is hydrogen or alkyl, and (c) a free radical initiator, by placing the sheets together and curing under heat and pressure. The sheets may be made of polyolefins, polymers of vinyl and vinylidene chlorides, polyacrylates, polyamides, polyesters, polychloroprene, butyl rubber or natural rubber. The unsaturated compound may be an allyl ester of a polybasic acid, acrylic or methacrylic ester of a polyhydric alcohol or divinylbenzene; and the compositions may also comprise radical polymerization initiators, e.g. peroxides and azo compounds, and plasticizers, extenders, stabilizers and antioxidants many of which are specified. In examples sheets of compositions comprising chlorinated polyethylene, diallyl phthalate, epoxy tallate, hydrated alumina, vinyl silane, polymerized trimethyldihydroquinoline and dicumyl peroxide are laminated to (8) a peroxide cured polyethylene sheet, (9) an uncured polyethylene sheet, (10) a nylon sheet and (11) an ethylene/propylene/diene terpolymer rubber sheet under heat and pressure.
Patent GB-818601-A (GB)
Title: Circuit arrangement for synchronising a generator
IPC: H04N5/12
Filed: 1956-12-14
Abstract: 818,601. Reactance valve circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 14, 1956 [Dec. 15, 1955], No. 38285/56. Class 40 (5). An oscillator is synchronized relative to a signal by applying its oscillations and the signal each separately to one or other of the cathode and grid of a combined reactance tube and phase detector connected across the tuned circuit of the oscillator to produce a variable bias on the reactance tube, produced by grid current, stabilizing the frequency and phase of the oscillator. As shown, the oscillations are applied across the cathode resistor R K  of the reactance tube V 1  and the sync. signal to the grid through a coupling capacitor C 1  on which variable bias develops, but the oscillations and sync. pulse may be applied respectively to the grid and cathode. In a modification, the oscillations are applied to a tap on a resistor connected by capacitors between the anode and cathode of the reactance tube, to compensate the direct effect of the sync. pulse on the oscillator circuit.
Patent GB-863338-A (GB)
Title: New or improved means for producing helical gears
Inventor: SYKES ARTHUR
IPC: B23F1/02
Filed: 1958-11-27
Abstract: 863,338. Grinding gears. BROWN INDUSTRIES Ltd., D. Nov. 27, 1959 [Nov. 27, 1958], No. 38304/58. Class 60. [Also in Group XXII] A machine for producing helical gears comprises a differential gear 25 in a drive for rotating a work-table 15, and means 32 for retarding or advancing the movement of one member 26 of the gear to vary the rotational speed of the table as a grinding, milling or planing tool 10 is reciprocated by an adjustable crank 20 so that the tool follows a substantially true helical path. The rack 32 is moved by a crank 33 rotating at twice the speed of the crank 20. The rack and crank are connected by a rod 37, a block 38 adjustable on a swinging arm 39, and a pivoted bracket 40. A roller 41 on the arm 39 engages a cam 42 reciprocated by a crank disc 34 rotating at the same speed as the crank 20. The effect of the cam 42 is varied by adjusting the block 38. The resulting non-uniform motion of the worktable compensates for the harmonic variations in the tool speed. Over-compensation may be provided to produce a modified helical tooth and to make allowances for known errors in the machine transmission.
Patent GB-1472647-A (GB)
Title: Finishing treatments for footwear
IPC: A43D95/10
Filed: 1975-10-30
Abstract: 1472647 Heat treating footwear SALIENT ENG Ltd 30 Oct 1975 [3 Sept 1974] 38340/74 Heading A3B Apparatus for heat treating footwear comprises an oven and a conveyor belt 2 (which moves in a direction perpendicular to the plane of the drawing) for carrying footwear through the oven, the oven being equipped with at least one catalytic gas heater panel 3 arranged for directing heat downwardly onto footwear carried by the conveyor belt, a thermostatically controlled gas inlet control valve 6 and a blower 7.  Air leaving the blower 7 passes over the panel 3 and is directed towards the footwear on the conveyor belt. It then passes through ports 10 into ducting 8 whereby it is returned to the blower 7 where it is mixed with fresh air and then recycled. After leaving the oven the footwear may be cooled by an air curtain provided by an array of overhead orifices supplied with cooled air from either the blower 7 or an independent fan.
Patent GB-1117774-A (GB)
Title: Process for the production of azo compounds
Inventor: ISCHER HANS
IPC: C09B41/00
Filed: 1965-09-09
Abstract: Dis and polyazo dyestuffs are prepared by coupling in the presence of one or more compounds of the formula <FORM:1117774/C4-C5/1> wherein A is SO2, C = NH, CO-NH-C = NH or C = N-Aryl; R1 is OH when A is SO2, or N(R4)R5 when A is other than SO2; R2, R3 and R4 are H or aryl, R5 is H or aryl or when R2, R3 and R4 are H, may be NH2 <FORM:1117774/C4-C5/2> or <FORM:1117774/C4-C5/3> or their salts, the compounds being used in amounts of 1 to 30 moles per diazonium group. Coupling may take place in acid, neutral or alkaline medium at 0 DEG to 85 DEG  C. optionally in presence of organic water soluble solvents and a stabilizer for the diazo compound.  Compounds present in the coupling reaction include amine sulphuric acid, guanidine, guanyl-urea, mono-, di- or tri-phenyl-guanidines, mono-, di- or tritolyl-guanidines, diphenyl-diguanidines, biguanide, mono-, or di-phenyl biguanidines, diphenyl-dibiguanide which may be phenylated, amino-guanidine and their inorganic or organic salts.
Patent GB-1510019-A (GB)
Title: Turboelectric apparatus
IPC: F04D25/06
Filed: 1975-09-19
Abstract: 1510019 Centrifugal compressors; gas turbine plant HITACHI Ltd 19 Sept 1975 [20 Sept 1974 6 Jan 1975 24 June 1975] 38639/75 Headings F1C and FIG [Also in Division F4] A turbo-machine having at least two fluid-flow rotors and a rotary electrical machine which drives or is driven by at least one of the rotors and housed within, and fixed with respect to the inner wall of, an annular space which houses a heat exchanger, at least one of the rotors being so arranged that fluid flowing from it passes through the heat exchanger. Fig. 15 shows a three-stage compressor comprising impellers 64, 71, 87 mounted on a common shaft 47 which is driven through a reverted step-up gearing 48 by the hollow shaft 41 of an electric motor 37. The compressor and motor are housed within the inner cylindrical wall 28 of a heat exchanger arrangement comprising heat exchanger pipes 32 housed within the annular space between the inner wall 28 and an outer cylindrical wall 29. The annular space is subdivided by six radial partitions, Fig.8, into six segmental spaces, three alternate spaces and the pipes 32 contained therein forming an intercooler 26 between the first and second stages, and the remainder forming an intercooler 76 between the second and third stages. A lubricant pump 55 is driven through gearing from the motor shaft 41. Coolant, e.g., water, is circulated through heat exchangers 58 to cool the lubricant sump and the motor 37. The compressor may have two stages instead of three, in which case the cooler 76 may be used as an aftercooler or may be omitted, the intercooler 26 then occupying all the space between the inner and outer walls 28, 29. The compressor may have four stages, with three intercoolers and an aftercooler. The radial partitions separating the coolers 26, 27 may be replaced by a single cylindrical partition so that the coolers are concentric with one another. Each cooler may then comprise a single pipe arranged in the form of a coil. Direct drive may be used instead of step-up gearing. In embodiments acting as refrigerators, Figs.21 and 22 (not shown), and comprising two rotors, gas is compressed in the first rotor, cooled in the annular heat exchanger and then expanded to a low temperature in the second rotor which acts as an expansion turbine. In further embodiments, Figs. 23 and 24 (not shown), the electric motor is replaced by an electric generator, the gas being compressed in a first rotor and then heated in the annular heat exchanger, after which it is passed through a second rotor which acts as a turbine to drive the compressor rotor directly and drive the generator through step-down gearing. The heating fluid used in the heat exchanger may be a high-temperature gas from an atomic reactor or a chemical plant.
Patent GB-342084-A (GB)
Title: Improvements in circuit arrangements for neutralising extraneous signals in electrical communicating and signalling systems
IPC: H04B1/10
Filed: 1929-12-17
Abstract: 342,084. Preventing inductive disturbance. JORGENSEN, K. V., Asylvej, Kaerby, Aalborg, Denmark. Dec. 17, 1929, No. 38648. [Class 40 (iv).] Local interference with electric signalling systems, such as wireless receiving, telephone and telegraph circuits, is neutralized by conducting the disturbing currents induced in the signal conductor to a point on a variable impedance connected to the interfering source in such a way that the interference conveyed directly to the impedance is more powerful than that induced in the signal conductor. Fig. 7 shows the application of the invention to a telephone system, a subscriber's station 20 being connected to the exchange 19 by a single line with earth return. The system is connected to the conductors 6 .. 9 from an interfering power line through condensers 4 and a non-inductive resistance 3, arranged as a potentiometer, the other terminal being connected to the earth lead 2. The potential at 11 will be greater than that caused by interference at the point 12, the contact 14 being adjusted so that the value and phase of the interfering signals from 11 are equal to those in the telephone system.
Patent GB-1353675-A (GB)
Title: Electrophoretic coating
IPC: C25D13/22
Filed: 1971-08-18
Abstract: 1353675 Selective electro-phoretic coating INTERNATIONAL BUSINESS MACHINES CORP 18 Aug 1971 [19 Aug 1970] 38662/71 Heading C7B A polymeric coating is selectively electrophoretically deposited on to a surface comprising at least two areas of individual metals having different oxidation potentials and connected together as anodes to a potential lying between the oxidation potentials of the metal(s) to be coated and the metal(s) not to be coated so that the polymeric coating is deposited only on the area of the former metal(s) having the lower oxidation potential(s). Preferably the potential applied to the anodes is at least 0À1 volt above the oxidation potential of any metal to be coated and below the oxidation potential of any metal not to be coated, e.g. 1À7 to 2À3 volts for 95 to 145 seconds. The polymeric material may comprise 40 to 60 parts by weight each of epoxy ester and polyvinylidene chloride resins, the aqueous coating bath comprising by weight 25 to 70 per cent of the polymeric material with 0À1 to 0À5% of benzotriazole (as corrosion inhibitor) and organic solvents. After deposition the surface may be baked e.g. at 80C. The coating may be selectively deposited on the Be/Cu alloy and Sn/Pb solder only of micro-electronic spring contact clips, each comprising a Ni-Be/Cu alloy-Ni laminate having a Au contact bottom, soldered to a Cu land on an epoxy-glass laminate card, for using with printed circuits.
Patent GB-386911-A (GB)
Abstract: 386,911. Lubricating hydraulic pumps or motors. THOMA, H., 9, Bachstrasse, Karlsruhe, Germany. Aug. 26, 1931, No. 23475/32. Divided on 380,578, [Group XXIX]. [Class 12 (ii).] In a hydraulic pump or motor wherein connecting-rods 2 have ball ends seated in sockets in pistons 6 and in a circular flange 3 which is part of a shaft connected by a double universal joint to a cylinder block rotating about an inclined axis, oil under pressure passes from an annular chamber 7 in the flange 3 to the flange sockets through ducts 8, which may be provided with non-return valves. Each rod 2 has an axial bore 9, which may contain a non-return valve, whereby oil passes to the piston sockets. The ball ends have transverse passages 11, 12 communicating with annular grooves 13 in the sockets. Where the working fluid is oil, the piston may have a duct furnished with a non-return valve 10 leading from the working chamber to the piston socket. Specification 169,015, [Class 12 (ii), Lubricating passages &c.], is referred to.
Patent GB-1113785-A (GB)
Title: Improvements in and relating to the finishing of cellulosic articles
Inventor: MAHOMED RAMON SIDICK
IPC: C08K5/20
Filed: 1964-09-23
Abstract: A resin suitable as a finish for cellulosic articles comprises a curable aminoplast precondensate containing 3,4,41 - trichlorocarbanilide; the latter may be covalently bonded to the precondensate or merely dispersed therein.  The resin may be in the form of an aqueous solution containing 0.5 to 1.5% by weight of 3,4,41-trichlorocarbanilide which may contain an acid or latent acid curing catalyst for the resin.  The resin may be cured by heating to at least 100 DEG  C. (e.g. 140-160 DEG  C.) for at least 2 minutes.ALSO:Natural and regenerated cellulose articles are rendered crease-resistant by treatment with an aqueous solution of an aminoplast precondensate containing 3,4,4\sv-trichlorocarbanilide followed by curing at at least 100 DEG C (e.g. 140-160 DEG C for 2 mins.). The amount of retained resin may be from 5 to 15% by wt. of the cellulosic article.  The solution may be padded or sprayed onto the articles.  The examples relate to treatment of fabrics with urea/formaldehyde and melamine/formaldehyde precondensates containing 3,4,4\sv-trichlorocarbanilide.ALSO:Natural and regenerated cellulose materials are rendered resistant to bacterial attack by treatment with an aqueous solution of an aminoplast (e.g. urea/formaldehyde, melamime/formaldehyde) precondensate containing 3, 4, 4\sv-trichlorcarbanilide followed by curing at at least 100 DEG C for at least 2 minutes.