baber/WOPTO huggingface dataset:
Patent GB-1284116-A (GB)
Title: Process for the preparation of fibre- or film-forming aromatic polyesters of low free carboxyl group contents
IPC: C08L67/02
Filed: 1969-09-08
Abstract: 1284116 Polyesters of low free carboxyl group content TEIJIN Ltd 8 Sept 1969 [9 Sept 1968 12 April 1969] 44379/69 Heading C3R Fibre-forming polyesters having low free carboxyl group content are prepared by adding to the melt of an aromatic polyester when it has reached an intrinsic viscosity of at least 0À3, a diol ester or polyester of oxalic acid or an optionally substituted malonic acid and then continuing the polycondensation. The esters have the formula in which A and B are either the same or different organic radicals and m is 0 or 1, l being 1 or 0 when m is 1 and when m = 1 and l = 1, R 1  and R 2  are hydrogen, or the same or different monovalent hydrocarbon residues of 1-12 carbons, which may be halogenated and when m = 1 and l=0, R 1  is a divalent hydrocarbon residue of 1-12 carbons which may be halogenated; or where R 3  and R 4  are hydrogen, the same or different monovalent (optionally halogen substituted) hydrocarbon residues of 1-20 carbons; or where A, R 1 , R 2 , m and l have the same definitions as above and which polyester may also contain amounts of other acids, preferably those of the basic polyester. In the examples, various additives were mixed with polyethylene terephthalate, polyethylene 2,6-naphthalene dicarboxylate and methyl betahydroxyethoxybenzoate.
Patent GB-1386335-A (GB)
Title: Rotary fluid moving propellor
IPC: B64C27/20
Filed: 1972-09-26
Abstract: 1386335 Rotary-wing aircraft A KLING 26 Sept 1972 [29 Sept 1971] 44427/72 Headings B7G and B7W [Also in Division F1] A rotary propeller A comprises radially outer and inner walls 2, 3, defining an annular, axially converging-diverging duct, and a plurality of blades 1 mounted between the walls, the walls and the blades forming an integral unit connected by stays 4 to a hub 5, and the blades being so arranged as to impart an axial thrust to a fluid upon rotation of the unit. The propeller is intended as a rotor for an aircraft but may be used in water or as an impeller in a blower or fan. The stays 4 may be flexible, and may be of greater length than the distance from the hub to the unit, so that the unit becomes axially displaced upon rotation. A helicopter may have a rotor of this kind, Fig. 2 (not shown), or may have two contra-rotating coaxial rotors (50), (51), Fig. 12 (not shown). The rotor may be used on an aircraft of the kind described in Specification 1,277,042, where it acts as the rotor of a Foucault gyroscope, the aircraft comprising a cabin 20 supported in a shell 10 on successively pivotally mounted rings 25, 27, the shell 10 being connected by struts 7<SP>1</SP> to a rotor 21 of the present invention, there being a similar rotor 60 outboard of and coplanar with the rotor 21. An engine 28 is mounted on the shell 28 and its shaft is connected to the rotor 60 through stays 11, so that when the engine is operated the rotors rotate in opposite senses with equal torques. The blades 21<SP>1</SP>, 60<SP>1</SP> of the rotors may have pivoted trailing edge flaps (41), Fig. 9 (not shown), or leading edge passages closed by flaps (41<SP>1</SP>), Fig. 10 (not shown), which are adjusted during rotation so that the rotational axis B of the rotor is caused to precess, to control the craft. The orientation of the cabin 20 about the axis B is controlled by a magnetic clutch 32 including a plate (61), Fig. 11 (not shown), connected to the ring 27 and able to be caused to rotate with either the shell 10 or with plate 37 connnected to the rotor 60 by stays 12. The craft may be an unmanned radio-controlled drone, Fig. 13 (not shown), and control of the blade flaps may be transmitted from the cabin to the rotors photo-electrically. Landing gear (112), Figs. 15 and 16 (not shown), may be connected to the craft by a ball-and-socket joint (110).
Patent GB-1078649-A (GB)
Title: Extraction apparatus
Inventor: HARTLEY GILBERT SPENCER
IPC: G01N1/34
Filed: 1963-11-12
Abstract: 1,078,649. Liquid-liquid extraction. FISONS PEST CONTROL Ltd. Jan. 8, 1965 [Nov. 12, 1963], No. 44529/63. Heading B1F. Solutes dissolved in a common liquid are separated by contacting with a non-miscible solvent of different density in a flexible tube formed into a helix about a horizontal axis, through which at least one liquid is continously passed, the other liquid occupying a minor volume of each turn of the helix, and the liquids being agitated in the zones of contact. As shown in Fig. 1, the helix is wound upon a solid or hollow cylinder 2 supported by struts 3, 3A upon discs 4, 4A mounted on axles in bearings in supports 6, 6A. The helix is connected by means of frustoconical joints the parts of which are separated by polytetrafluoroethylene sleeves 16, 16A (which permits the helix to rotate), to separating traps 14, 15 in which lighter and heavier liquids entering and emerging from the helix settle and are separately supplied and withdrawn. The helix may be rotated, whereby the second liquid is transported through the helix, usually countercurrently, by gearing 8, 10 meshing with teeth on disc 4. The helix may be made of polytetrafluoroethylene or a perfluoroethylene/perfluoropropylene copolymer. Fig. 6 (not shown) illustrates an agitating device consisting of rollers (23) having axes parallel to helix (1) mounted in groups of four on eccentric axes (26) which by rotation bring the rollers in succession into contact with the helix to effect repeated hammer-like deformation thereof. Otherwise operated rollers and spring-operated hammers are also referred to.
Patent GB-1170827-A (GB)
Title: Fluid Pump
IPC: F04B43/00
Filed: 1967-10-02
Abstract: 1,170, 827. Flexible chamber pumps. INTERNATIONAL BUSINESS MACHINES CORP. Oct.2, 1967 [Nov.7, 1966], No.44719/67. Heading F1A. A hydraulically-actuated flexible chamber pump, e.g. for blood, comprises a collapsible tubular member 10 mounted in a chamber of actuating liquid cyclically pressurized by a crank-driven piston 22, and connected to an inlet 14 and a check valve-controlled outlet 16, the resistance of the walls of member 10 to collapsing under pressure increasing from the inlet end to the outlet end. When the actuating liquid pressure is increased by piston 22, the inlet end of member 10 collapses first and closes off the inlet. The rest of the member then progressively collapses towards the outlet to discharge its contents via check valve 18. When the actuating liquid pressure is reduced by piston 22, valve 18 closes, and member 10 remains collapsed until the pressure is low enough for the inlet end to open to admit a fresh charge, thereby producing a self-cleaning action. The increasing collapsing resistance may be obtained by tapering the exterior, as shown, or interior of member 10. Alternatively, member 10 may be formed by concentric tubes of different lengths cemented or moulded together, Fig. 2 (not shown), or by an elastic member the modulus of elasticity of which increases from its inlet end to its outlet end, Fig. 3 (not shown). The variation of the modulus of elasticity may be obtained by immersing a member of uniform elasticity in a solvent which will leach out the plasticizer, and then withdrawing the member so that it is subjected to different amounts of leaching along its length. In the embodiment of Figs. 4 to 6 (not shown), the tubular member is subjected to initial deformation by rigid tapered saddles, the degree of deformation decreasing from the inlet end to the outlet end, to provide the required variation of resistance to collapsing. A number of pumping members of different capacities may be mounted in a common actuating chamber.
Patent GB-1300292-A (GB)
Title: A connector device for connecting to a circuit board
Inventor: SCHULLSTROM STEN GUNDE
IPC: H05K7/10
Filed: 1970-09-21
Abstract: 1300292 Electric couplings SAAB-SCANIA AB 21 Sept 1970 [25 Sept 1969] 44777/70 Heading H2E A device for making connection to a micromodule having a body 1 and terminals 2 comprises an insulating plate 3 having a plurality of elements 5 mounted in holes 4 therein. One end of each element 5 forms a bifurcated contact 11 for providing connection to one of the terminals 2 of the micromodule after which the contacts 11 and terminals 2 are soldered together by direct immersion at points 12 sufficiently far away from the micromodule body to prevent damage of the body due to the heat of the soldering. The device is mounted on a metal circuit-board 7, the other ends of the elements 5 passing through holes 8 in the board 7 and being insulated from the board 7 by insulating grommets 10 formed on an insulating plate 9.
Patent GB-1224160-A (GB)
Title: Process for the removal of acid constituents from gas mixtures
Inventor: WEHNER KLAUS
IPC: C10K1/16
Filed: 1969-09-11
Abstract: 1,224,160. Purifying combustible gas. LEUNA-WERKE " WALTER ULBRICHT " VEB. 11 Sept., 1969, No. 44864/69. Heading C5E. In a process for removing acid constituents from natural gas, town gas or synthesis gas with one or more solvents, the solvent includes an N-substituted #-caprolactam. An alkanolamine and water may be included, and the process may be carried out at raised pressure, e.g. in specific examples the pressure is 25 atmos. and the temperature 25‹ C.
Patent GB-1335235-A (GB)
Title: Bead storage device
IPC: B29D30/38
Filed: 1971-01-19
Abstract: 1335235 Bead storage device for use in tyre building FIRESTONE TIRE & RUBBER CO 19 Jan 1971 [11 Feb 1970] 44987/71 Divided out of 1335231 Heading B7C A portable bead storage device for use with a tyre building machine comprises a platform 1240 mounted on castors 1241 and adapted to vertically support four magazines 1248 of beads spaced about the centre of the platform, each magazine consisting of a vertical drive screw 1250 about which are mounted frames 1253 each supporting a link chain 1254. The chain has plastics clips 1262 located thereon which support the beads in spaced relationship. On rotation of the screw 1250 the beads are raised to the top of the magazine one at a time for pick-up therefrom to a bead setter. Sensors 1270, 1271 indicate a bead in the pick-up position.
Patent GB-1078937-A (GB)
Title: Production of embossed plastic sheet material
Inventor: FROWDE STANLEY CHARLES
IPC: B29C59/02
Filed: 1964-11-05
Abstract: 1,078,937. Embossing. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 14, 1965 [Nov. 5, 1964], No. 45117/64. Headings B6C and B6J. A sheet of flexible plastic material comprising a layer of blown thermoplastic material having a thermoplastic skin and a fabric or paper backing is embossed by superimposing the skin, after heating until plastic, against a porous embossing surface through which suction is applied and having a design on the surface. The embossing member may be a plate, band or cylindrical sleeve, and comprise a layer of woven glass cloth between a perforated metal plate and a perforated silicon elastomer sheet, the last being in contact with the skin.
Patent GB-1447405-A (GB)
Title: Transfers for decorating articles
IPC: B41M3/12
Filed: 1973-09-26
Abstract: 1447405 Decalcomanias J ALBRECHT GmbH & CO KG and F XAVER LEIPOLD KG 26 Sept 1973 45133/73 Heading B6C A method of producing a transfer for a decorative image comprises applying to a carrier material over an image thereon a fluid material capable of chemically setting to form a masking film, said fluid material comprising a polymerizable acrylate or methacrylate. In an example a design layer printed on a release layer on a temporary backing is coated on the design side with a thin layer of film comprising a, or a mixture of, monomer acrylates. The backing may be paper and the release layer a water soluble substance. The acrylates may be monobutyl, monoisobutyl and/or monomethyl methacrylates. After coating polymerization may be effected by electron or UV radiation.
Patent GB-1061285-A (GB)
Title: Apparatus for use in testing textile materials
Inventor: ATTACHED LUDWIK ROMUALD GAN DR
IPC: G01N33/36
Filed: 1963-11-15
Abstract: 1,061,285. Testing fabrics. PRECISION PROCESSES (TEXTILES) Ltd. Nov. 13, 1964 [Nov. 15, 1963], No.45161/63. Heading G1S. A device for testing fabrics for shrinkage comprises a frame 7 having bearings 2, 3 mounting a cubical container 6 along its diagonal axis. Windows 8, a water-tight door 10 and drainage valve 9 are provided in the container. The container is rotated by a motor 13 through transmission means 12, 14, 15, 16, 18. An electrically controlled timing device 15 is provided to reverse the direction of rotation of the shaft 16. To determine the shrinkage of a fabric under test its dimensions are measured before and after a timed test.
Patent GB-1173939-A (GB)
Title: Preparation of Semiconductor Compounds by Fused Salt Electrolysis
IPC: C01G11/00
Filed: 1967-10-05
Abstract: 1,173,939. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 5 Oct., 1967 [13 Jan., 1967], No. 45427/67. Heading H1K. [Also in Division C7] A II-V, III-V and II-VI semi-conductor compound formed by a metal selected from Zn, Cd, Hg, Al, Ga, In and an element selected from P, As, Sb, S, Se, Te are prepared by cathodic deposition from a fused salt solution including ions of the chosen metal and element, the applied potential being sufficient to cause simultaneous deposition of the metal and element to form the desired compound. Preferably the constituent which is deposited in excess of its stoichiometric ratio in the compound is volatile at the temperature of the fused salt bath and is one of the Group V or Group VI elements. Typically the semi-conductor compound has the zinc blende structure and if desired it may be epitaxially deposited on a cathode formed by a single crystal of silicon. As described the fused bath includes alkali metal halides as diluent. The cell may comprise a tantalum crucible or quartz coated with graphite and serves also as anode while a graphite rod may serve as cathode. Germanium may also be used as a cathode. An inert cell atmosphere-argon, helium or nitrogen-is provided. The bath may also include compounds of dopants for the semiconductor which are codeposited with it. Examples are given of depositing crystals of GaP from baths containing Ga 2 O 3  and NaPO 3 ; A1P from baths containing Al 2 O 3  and NaPO 3 ; 8. of growing epitaxially on a Si crystal ZnSe from a bath containing ZnCl 2  and SeCl 4 . GaP doped with Zn is produced from a bath consisting of NaF, NaPO 3 , Ga 2 O 3  and ZnO and is deposited on a crystal of Si. Similarly by including also Na 2 SeO 4  in the bath, a photoluminescent GaP doped with both Zn and Se is obtained. By depositing first P-type GaP doped with Zn and then coating this with N-type GaP doped with Se, a PN junction is formed suitable for an electroluminescent diode which emits red light on the passage of current.
Patent GB-1515328-A (GB)
Title: Marine jack-up apparatus having telescopic legs
IPC: E02B17/02
Filed: 1975-10-31
Abstract: 1515328 Jack-up platforms BETHLEHEM STEEL CORP 31 Oct 1975 [14 Nov 1974] 45502/75 Heading B7A A jack-up platform comprises a working platform 10 and a plurality of telescopic support legs 11 which are braced by a frame 16 and carry a base 17. The jacking mechanisms for each leg being mounted solely on the platform to prevent contact with seawater and the outermost sections of the legs being interconnected at their lower ends. As described each telescopic leg 11 comprises a tubular outer and inner section 13, 14. The outer section 13 has vertically spaced rows of apertures 31 and elongate slots 32 which co-operate with a jacking mechanism and, at three levels, openings 47 which receive locking pins 45 of a leg locking mechanism 44 to lock the inner and outer sections 14, 13'together. The locking pins 45 are arranged radially within the inner section 14 and are actuated by two hydraulic rams 59 via a crosshead (64) and a rotary spoke 55. The jacking mechanism for each leg 11 comprises pins 86 which are carried by an annular yoke 83 surrounding the leg. The yoke 83 is displaced vertically by a pair of hydraulic jacks 79. The inner leg section 14 is moved vertically relative to the outer section 13 by three of the pins 86 sliding in the elongate slots 32 of the outer section 13 and engaging in apertures 34, with the leg locking mechanism 44 released. Relative vertical displacement between the outer section 13 and the platform 10 is achieved by the pins 85 engaging the apertures 31 in the outer section. Locking pins 90 hold one or other of the leg sections 13, 14 during the "stepping cycle" whilst the pins 86 are withdrawn and the jacks 79 are being either extended or retracted before re-engagement of the pins 86 into the sequentially following row of apertures 31 or 34. The base 17, frame member 16 and the lower ends of the inner leg sections 14 have internal buoyancy tanks. Wedges 25 and 26 normally hold the outer leg sections 13 to the platform 10. In a modification each leg may comprise a plurality of inner sections.
Patent GB-1463567-A (GB)
Title: Process for producing flavouring and fragrance compositions
IPC: A23L27/20
Filed: 1974-10-22
Abstract: 1463567 Methylpentenoic and methylpentynoic acids INTERNATIONAL FLAVORS & FRAGRANCES Inc 22 Oct 1974 [23 Oct 1973 22 July 1974] 45613/74 Heading C2C [Also in Divisions A2 and A5] 4-Chloro-2-pentene is prepared by reacting piperylene with hydrogen chloride at 10-15‹ C. 2 - methyl - 3 - pentenoic acid isomer mixture is made by reacting the Grignard compound of 4-chloro-2-pentene in tetrahydrofuran with dry ice. The product is isolated in toluene solution with addition of HCl. 3-Pentyn-2-ol is prepared by reacting methyl magnesium chloride in tetrahydrofuran with Mapp gas (methyl acetylene/allene mixture) followed by addition of acetaldehyde. 4-Chloro-2-pentyne is prepared by reacting 3-pentyn-2-ol with PCl 3 . 2-Methyl-3-pentynoic acid. The Grignard reagent of 4-chloro-2-pentyne is prepared in tetrahydrofuran and poured on to dry ice. The product, obtained by acidification with HCl extraction with toluene is a 3 : 1 mixture of 2-methyl-3-pentynoic acid and 2-methyl-2,3- pentadienoic acid. Cis-2-methyl-3-pentenoic acid and 2-methyl-2- pentenoic acid are obtained by hydrogenating the above mixture of acids in methanol using a Pd/CaSO 4  catalyst.
Patent GB-1461860-A (GB)
Title: Semi-synthetic penicillin
IPC: C07D499/68
Filed: 1974-10-22
Abstract: 1461860 Penicillins SOC PRODOTTI ANTIBIOTICI SpA 8 Oct 1975 [22 Oct 1974] 45632/74 Heading C2C Novel N,N<SP>1</SP> - terephthalylidene - bis - 6 - [D(-) - α - aminophenylacetamido] - penicillamic acid (I) is made by interacting terephthalic aldehyde and ampicillin; salts of (I), e.g. the sodium salt, are also described. Pharmaceutical preparations active against gram-positive and gram-negative bacteria contain (I) and/or salts thereof as active ingredient. Administration is orally or parenterally.
Patent GB-994350-A (GB)
Title: Improvements in or relating to pteridine compounds and processes for their preparation
IPC: C07D475/08
Filed: 1962-12-04
Abstract: The invention comprises substituted pteridines of the general formula <FORM:0994350/C2/1> wherein R represents a phenyl or thienyl radical, and R1 represents an amino, phenyl or thienyl radical, and pharmaceutically acceptable non-toxic acid addition salts thereof, and the preparation thereof by treating in an aqueous media a 2-R1-4,5,6-triaminopyrimidine, wherein R1 has the above significance, with an a -substituted acetamide of the general formula <FORM:0994350/C2/2> wherein R has the above significance and X represents <FORM:0994350/C2/3> and treating the resulting 4-aminopteridine-6-carboxamide of the general formula <FORM:0994350/C2/4> wherein R and R1 have the above significance, with an aqueous source of hypobromite ions such as aqueous potassium or sodium hypobromite solution.  In the above processes the a -substituted acetamide may be a -bromobenzoylacetamide and is prepared by treating benzoylacetamide with bromine, or may be a triketone of the formula <FORM:0994350/C2/5> wherein R represents phenyl and is prepared by treating benzoylacetamide with nitrous acid and treating the resulting a -isonitrosobenzoylacetamide with nitrous acid.  Pteridines of the first general formula above wherein R1 represents a phenyl or thienyl radical are prepared by treating a 4,6-diamino-5-nitroso-2-R1-pyrimidine with benzoylacetamide or thienylcarboxyacetamide in the presence of an alkali metal acetate to form a pteridine carboxamide of the formula <FORM:0994350/C2/6> wherein R has the above significance or the corresponding 2-thienyl compound.  Pharmaceutical compositions useful as diuretic and hypotensive agents and which may be administered internally in the form of capsules, tablets, suspensions and solutions contain as the active ingredients pteridines of the first general formula above. 4,6 - Diamino - 5 - nitroso - 2 - (3 - thienyl)-pyrimidine is prepared by treating 3-thiophenecarbonitrile with dry hydrogen chloride in ethanol then with dry ammonia and finally with hydrogen chloride and reacting the resulting 3 - thiophenecarboxamidine with the silver salt of isonitrosomalononitrile.  4,5,6 - Triamino - 2 - (3 - thienyl) - pyrimidine is prepared by reducing the corresponding 5-nitroso compound with sodium hydrosulphate.  3 - Oxo - 3 - (2 - thienyl) - propionamide is prepared by treating 3-oxo-3-(2-thienyl)-propionic acid with thionyl chloride and treating the resulting corresponding acid chloride with ammonia.