baber/WOPTO huggingface dataset:
Patent GB-1128927-A (GB)
Title: Improvements in or relating to heat exchangers for steam generation particularly for use in nuclear power plants
Inventor: KRIZEK VLADIMIR
IPC: F22B1/16
Filed: 1965-11-02
Abstract: 1,128,927. Steam generators. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. 2 Nov., 1965, No. 46042/65. Heading F4A. A steam generator heated by hot fluid from a nuclear reactor, comprises a series of vertical parallel tubular wall elements 5, 15 symmetrically disposed about steam and water drums 1, 2, 3. Hot fluid from inlet 8 flows in parallel downwardly through the elements 5, 15 on the left-hand side of the structure, then passes through the sinuous pipe 10 mounted on resilient support 7, to flow upwardly in parallel through the elements 15, 5 on the right-hand side of the structure and out through outlet 9. The water flows through helical tube banks within the vertical parallel tubular walls elements 5 to and from the drums to be preheated, evaporated and superheated as required. The drums 1, 2, 3 are supported on supports 13 of the structure which has a surrounding shell 11. The drums 1, 2, and 3 operate at different pressures.
Patent GB-1247908-A (GB)
Title: Copperplating process and agents for use in this process
IPC: H05K3/42
Filed: 1968-09-27
Abstract: 1,247,908. Making printed circuits. PERNIX ENTHONE. 27 Sept., 1968 [28 Sept., 1967], No. 46045/68. Heading H1R. [Also in Division C7] A copper clad polymer insulating board having through holes is coated with copper on the walls of the holes by electroless followed by electrolyte plating, and to prevent the copper plating from adhering to the copper cladding, the board is contacted with an acid solution of a lower alkyl thiourea before plating.
Patent GB-937273-A (GB)
Title: Improvements in method for dyeing textile materials with vat dyes
Filed: 1961-12-28
Abstract: Textile materials are dyed by impregnating them with a mixture of a vat dyestuff and an alkali metal bisulphite and thereafter treating the material with an aqueous solution of an alkali metal or quaternary ammonium borohydride and an alkali metal hydroxide having a pH between 9,5 and 13.  The dye and bisulphite may be applied by padding as an aqueous dispersion and the material may be dried at 110 DEG C. for 1-2 hours prior to reduction.  The reducing bath may also contain sodium chloride and is advantageously used at 80 DEG C. for a contact time of 5 seconds. Specified borohydrides are tetramethyl-, trimethylethyl-, dimethyldiethyl-, tricaprylmethyl- and cetyltrimethyl-ammonium borohydride and especially sodium borohydride. Examples of dyeing cotton with a number of well known vat dyestuffs are given. Specification 872,998 is referred to.
Patent GB-1277837-A (GB)
Title: A process for producing 1,4-diacetoxy-2-butene from butadiene
IPC: C07C69/16
Filed: 1970-09-30
Abstract: 1277837 1,4-diacetoxy-2-butene TOYO SODA MFG CO Ltd 30 Sept 1970 [2 Oct 1969] 46565/70 Heading C2C 1,4-diacetoxy-2-butene is produced by reacting a gaseous mixture of oxygen, a chemically inert gas, and 5-70% by volume of butadiene, with liquid acetic acid containing palladium acetate, cupric acetate and at least one acetate of a heavy metal other than palladium and copper (e.g. Mn, Ni, Co, Fe, Pb or Cr) of an alkali metal or of an alkaline earth metal, and carrying out the reaction at a temperature in the range 100-140 C.
Patent GB-1072374-A (GB)
Title: Preparation of 6-aminopencillanic acid
Inventor: PLATT THOMAS BOYNE
IPC: C07D499/42
Filed: 1963-11-26
Abstract: 6-Amino-penicillanic acid is produced by subjecting a penicillin to the action of enzymes present in or obtained from Streptomyces griseus, S. azureus, S. fradiae, S. olivaceus or Bacterium cyclo-oxydans.  The penicillin may be penicillin G, penicillin V or a -phenoxyethyl penicillin.  According to the example, a five day culture of the cells in a conventional medium is separated from the broth, resuspended in N/5 borate buffer at pH 8.5 and centrifuged. The cells are incubated with the penicillin in N/5 borate buffer at pH 8.5 and 45 DEG  C. The 6-aminopenicillanic acid formed is recovered in the coventional manner.
Patent GB-1061019-A (GB)
Title: Divinyl ethylene oxide
Inventor: STOGRYN EUGENE LEO
IPC: C07D313/04
Filed: 1963-11-26
Abstract: The invention comprises a composition containing the trans- and cis-isomers of 1,2-divinylethylene oxide and also a composition containing principally the trans-isomer of 1,2-divinylethylene oxide. 1,2-Divinylethylene oxide is made by reacting 3,4-dihydroxy-1,5-hexadiene with calcium chloride and acetyl chloride to give the chloroester 3-chloro-4-acetoxy-1,5-hexadiene which is subsequently treated with alkali hydroxide to yield the epoxide.  If the alkali hydroxide treatment is carried out at about 40-50 DEG  C. the reaction product is a mixture of the cis and trans isomers in the ratio of about 1: 7 respectively.  If this reaction product is heated to 80-120 DEG  C. or the alkali hydroxide treatment effected at 80-200 DEG  C., a mixture of trans 1,2-divinylethylene oxide and 4,5-dihydrooxepine is obtained, the cis isomer being rearranged to the 7-membered heterocycle which can be separated from the trans isomer by gas chromatography or distillation. The compounds of the invention can be polymerized to give unsaturated polyethers which contain two or more of the recurring unit <FORM:1061019/C2/1> (see Division C3).ALSO:The invention comprises polymers of 1,2-divinyl-ethylene oxide containing the recurring unit. <FORM:1061019/C3/1> Polymerization is effected in the presence of known epoxide polymerization catalysts and at temperatures in the range 0-150 DEG  C.  Specified catalysts are phosphorus pentafluoride, phosphorus pentafluoride-tetrahydrofuran complex, triisobutyl aluminium-water catalyst and sodium methylate.  Amounts of catalyst may vary from, e.g., 0.1 to 10% by weight of monomer. The polymers possess appreciable hydroxyl functionality which can be increased by carrying out the polymerization in the presence of modifiers such as water, ethylene glycol, trimethylolpropane, glycerol and pentaerythritol.  Examples 3-5 describe the preparation of mono-polymers using different catalysts.  In Example (6) a 9:1 molar mixture of divinylethylene oxide and water is polymerized.
Patent GB-1378773-A (GB)
Title: Manufacture of anthraquinone compounds
IPC: C09B1/503
Filed: 1972-09-11
Abstract: 1378773 Preparation of anthraquinone compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Sept 1972 [11 Oct 1971] 47192/71 Heading C4P Anthraquinone compounds of the formula where X is OH or NH 2 , and R<SP>1</SP> and R<SP>2</SP> are H, Cl, Br, C 1 -C 4  alkyl or alkoxy, are prepared by subjecting a di-(boro-C 1 -C 4  alkyl carbonyloxy) complex of a compound of formula to the action of Cl 2  in oleum at -10-100‹ C. and thereafter hydrolysing off the boro-C 1 -C 4  alkylcarbonyloxy groups. The process may be carried out by passing Cl 2  through a solution of the said complex in oleum while stirring, and pouring the reaction mixture on to a mixture of ice and water to effect hydrolysis. A chlorination catalyst, such as iodine, may be present in the reaction medium. The compounds may be used as disperse dyes or as intermediates. The di-(boroalkylcarbonyloxy) complexes may be obtained by adding boric acid to the appropriate acid anhydride at 120‹ C., cooling and adding the anthraquinone compound, heating to 100‹ C. and cooling to 0‹ C. to isolate the complex. When chlorination takes place at below 30‹ C. then hydrolysis of the di-(boro-C 1 -C 4  alkylcarbonyloxy)-complexes gives compounds of the general formula
Patent GB-1249341-A (GB)
Title: Improvements in or relating to x-ray tubes
Inventor: SHIMULA YOSHIHIRO
IPC: H01J35/12
Filed: 1968-10-08
Abstract: 1,249,341. X-ray tubes. RIGAKU DENKI CO. Ltd. 8 Oct., 1968, No. 47672/68. Heading H1D. An X-ray tube target is arranged across the end of a conical aperture in a block of heatconductive material provided with cooling channels. In Fig. 2, a target foil 7 of copper, aluminium or gold is arranged between heatconductive discs 5 and 6 which are provided with channels 10 and 11 for the passage of cooling water. The assembly is arranged at one end of a tube 1 which may be surrounded by a focusing coil (Fig. 1, not shown); the other end of the tube is connected to a chamber enclosing a cathode (3) and a control electrode (2). In a modification, Figs. 4 and 5 (not shown), the internal disc 6 is omitted, and a beryllium window (13) is provided in the side of the tube 1; the electron beam is of rectangular crosssection and the window may be adjacent either the broad or the narrow face of the beam. In a further modification, Figs. 7 and 8 (not shown), the tube 1 is closed by a cylindrical member (105) provided with a conical aperture (106) closed by the target foil which is adjacent a cooling channel (111) in an external block (110); a diametral channel (107) adjacent the target foil allows X-rays to pass from the foil to beryllium windows in the sides of the tube 1.
Patent GB-1272650-A (GB)
Title: 2,2'-methylenebis(trans-3,5-dihydroxy-and dimethoxystilbene) and use as biocide
Inventor: ARLT HERBERT GEORGE JR
IPC: C07C37/055
Filed: 1969-09-30
Abstract: 1,272,650. 2,2<SP>1</SP> - Methylenebis - (trans - 3,5- dihydroxy and dimethoxy stilbene) and use as a biocide. ARIZONA CHEMICAL CO. 30 Sept., 1969 [28 Oct., 1968]. No. 48045/69. Heading C2C. The invention comprises a trans stilbene derivative of formula wherein all the R groups are either methoxy groups or hydroxy groups. The 2,21-methylenebis - (trans - 3,5 - dimethoxystilbene) is obtained by treating trans-3,5-dimethoxystilbene (found in tall oil fractions) with paraformaldehyde in the presence of an acid catalyst. The hydroxy derivative of this invention may be obtained by demethylation of the afore-mentioned compound. The invention also comprises a biocidal composition containing a compound of the invention in admixture with an inert solid or liquid diluent.
Patent GB-1110500-A (GB)
Title: Oxadiazoline compounds and herbicidal compositions containing them
IPC: C07D271/113
Filed: 1966-10-27
Abstract: 1,110,500. Herbicidal compositions. RHONE-POULENC S.A. 27 Oct., 1966 [29 Oct., 1965; 14 Jan., 1966], No. 48260/66. Addition to 1,063,799. Heading A5E. [Also in Division C2] Herbicidal compositions comprise as active ingredient, at least one oxadiazolone compound of the formula:- wherein R<SP>1</SP> represents a C 1  to C 4  alkoxy group, in association with one or more diluents compatible therewith and suitable for use in herbicidal compositions. Conventional solid diluents are specified. The composition may .be in the form of a suspension, emulsion or solution in organic or aqueous-organic media and may contain wetting, dispersing or emulsifying agents of the ionic or non-ionic type.
Patent GB-1254627-A (GB)
Title: Improvements in cycle brakes
Inventor: TOPLIS JOHN GEOFFREY
IPC: B62L3/02
Filed: 1969-10-02
Abstract: 1,254,627. Cycle brake adjustment arrangement. RALEIGH INDUSTRIES Ltd. 19 Aug., 1970 [2 Oct., 1969], No. 48379/69. Heading B7E. An adjustment arrangement for a cycle brake consists of an operating lever 11 pivoted at 13 to a bracket 10 and provided with a tooth 18 which during normal brake operation abuts a spring 22 to move it into close contact with a toothed wheel 24, but when a slack condition of the sheathed cable 30, 31 exists it causes the end 23 of the spring to engage the wheel and turn it such that a screw 25 connected therewith causes a nut 26 supporting the cable sheath to move outwardly of the bracket and hence take up the cable slack. The nut is provided with flats so that it is non-rotatably but slidably mounted in a shroud 16 connected to the bracket 10 by a releasable clip 17. The inner cable 31 passes through the nut, screw and wheel, and is connected with the lever 11 by a nipple 35.
Patent GB-1059960-A (GB)
Title: The production of semi-conductor rods
IPC: C30B15/02
Filed: 1963-12-11
Abstract: A monocrystalline silicon rod 6 (Figs. not shown) having a diameter greater than 35 mm. is pulled through an induction coil 5 from a melt 3 contained in a silicon block 2, the melt being replenished by simultaneously lowering a silicon rod 7 through an induction coil 4. The rod may be pulled at 2-4 mm/min. and may be rotated during pulling at 10-150 rpm.  The block may be formed from matching prisms held together in a crucible of graphite or quartz and may be heated externally to 1,200 DEG C.
Patent GB-1060502-A (GB)
Title: Improvements in or relating to photographic materials
IPC: G03C1/12
Filed: 1963-12-11
Abstract: A photographic material comprising a substrate and a binder free layer of vapour deposited silver halide microcrystals preferably 0.1 - 0.5 microns thick, is treated with a photo-sensitizing material selected from sensitizing dyestuffs e.g. cyanine dyes or pinacyanol, ethoxylated amides, nonyl phenol ethylene oxide condensate, ammonium alkyl phenoxy polyoxyethylene sulphates, alkoxy polyoxyethylene ethanols, polyglycols, triethanolamine, triethanolamine alkaryl sulphonates, triethanolamine lauryl sulphate, ethylene diamine tetraacetic acid and soluble salts thereof, dimethylamine borane, methylamine borane, pyridine borane, alkali borohydrides, copper halide, ammonium halides, ammonium acetates, hydroxides and sulphoxides of the general formula <FORM:1060502/C6-C7/1> wherein R and R1 are each an alkyl, aryl, alkylene or aralkyl radical.  The sensitizer is applied to the silver halide either by a vapour deposition process or by precipitation from a solution or by coating with a liquid.  The substrate may be glass, paper, photographic quality polymeric film or a subbing layer of gelatine, lacquer or a tacky adhesive on polyethylene terephthalate.  The sensitizer concentration is a maximum of 1014 atoms per sq. cm. of surface for negative image bearing media and 1014 - 1015 atoms sq. cm. for positive type media. Following vapour deposition the sensitizer may be moistene with water.  A mask may be used in the vapour deposition process.
Patent GB-1104970-A (GB)
Title: New hair dye and methods of making it
Inventor: KALOPISSIS GREGOIRE
IPC: C09B51/00
Filed: 1965-11-19
Abstract: The invention comprises 1-(2-hydroxyethyl)-amino - 2 - nitro - 4 - (2 - hydroxyethyl) - methyl-amino - benzene and 1 - amino - 2 - nitro - 4(2-hydroxyethyl) methylamino benzene.  The compounds are prepared by refluxing 1-amino-2-nitro - 4 - methylamino - benzene with an ethylene halohydrin.  The dihydroxy compound may also be prepared by refluxing 1-amino-2-nitro - 4 - methylacetylamino - benzene with 2-chloroethyl chloroformate, deacetylating with conc. HCL, and then refluxing the product, with or without a prior treatment with potash to cause hydroxyethylation in position 1, with an ethylene halohydrin.  Ethylene bromohydrin is the preferred halohydrin.ALSO:The invention comprises 1-(2-hydroxyethyl) amino - 2 - nitro - 4 - (2 - hydroxyethyl)-methylamino-benzene and 1 - amino - 2 - nitro-4 - (2 - hydroxyethyl) methylamino - benzene. The compounds are prepared by refluxing 1-amino - 2 - nitro - 4 - methylamino - benzene with an ethylene halohydrin.  The dihydroxyethyl compound may also be prepared by refluxing 1 - amino - 2 - nitro - 4 - methylacetylamino-benzene with 2-chloroethyl formate to give the 2-chloroethyl ester of (2-nitro-4-methylacetylamino) - phenylcarbamic acid, deacetylating with concHCl, and then refluxing the product, with or without a prior treatment with potash to cause hydroxyethylation in position 1, with an ethylene halohydrin. Ethylene bromohydrin is the preferred halohydrin.ALSO:Compositions containing 1-(2-hydroxyethyl) amino-2-nitro -4-(2-hydroxyethyl)-methylamino benzene are used to dye hair.  The composition may also include other nitro, azo or anthraquinone dyes. The dyes are preferably used at alkaline pH.  Other additives that may be present include organic solvents, detergents and lacquers. The dyes do not require the presence of an oxidising agent.
Patent GB-1063119-A (GB)
Title: Heat sealing apparatus for thermoplastic films
IPC: B29C65/22
Filed: 1964-12-04
Abstract: 1,063,119. Seaming non-metallic sheet material. WELDOTRON CORPORATION. Dec. 4, 1964 [Dec. 17, 1963], No. 49507/64. Heading B5K. [Also in Divisions B8 and H5] Apparatus for heat sealing superimposed plies 29, 29a of thermoplastic film to each other comprises two members 24, 26 for clamping the plies 29, 29a together, the member 24 having an elongated heating element 76 or 78 supported in a groove 74, Fig. 4 (not shown), in electrically insulating means 64, the outer surface of the element 76 or 78 being spaced from the confronting sides of the groove and substantially flush with the clamping surface of the member 24, which surface is defined by the insulating means 64. A longitudinally folded strip of thermoplastic film 22, e.g. transparent polyvinyl chloride or polyethylene, forming superposed layers 29, 29a between which articles are to be packaged is manually drawn from a roll 20 to a position over a tray 36 which is adjustable in height to accommodate articles of different heights. A pivoted head 28 carrying pressure members 26 is lowered to clamp the film against sealing and severing members 44, 50, Fig. 2 (not shown), and to operate a switch 101 to supply a heating pulse to the resistance elements 76, 78, e.g. of a nickel-chromium alloy steel wire, carried by the members 44, 50. The elements 76, 78 are mounted under tension from springs 87 in the grooves 74 in the insulators 64 comprising a series of ceramic blocks, e.g. of alumina, which are arranged end-to-end in grooves 60 in metal bars 56, e.g. of aluminium, so as to allow longitudinal expansion and contraction of the elements 76, 78 during and between heating pulses (see Division H5). The members 26 comprise aluminium bars 100 covered with a layer 102 of soft silicone rubber with a thin outer cover 104 of polytetrafluoroethylene. In an alternative embodiment (not shown), the elements 76, 78 are mounted in the pivoted head 28 and the counter-pressure bars 100 are mounted on a stationary frame.
Patent GB-1329099-A (GB)
Title: Electrographic copying machine
IPC: G03G21/00
Filed: 1970-10-19
Abstract: 1329099 Electro-photographic copiers MINNESOTA MINING & MFG CO 19 Oct 1970 [20 Oct 1969] 49587/70 Heading G2H A cartridge 31 containing a photo-conductive web 21 is removably mounted in a carriage 32 of a copier 10. A portion 22 of web 21 extends between supply and take-up rollers 63, 64 in cartridge 31 and rests on rollers 97, 98 and a conductive platen 33 of carriage 32. Portion 22 is imagewise exposed via an optical system 24 to 27 and the carriage 32 travels on rails 30 (and 29) to move portion 22 past a developer station 34 where it is contacted with conductive toner while a field is applied between station 34 and platen 33. The carriage continues to the left hand end of copier 10, reverses, passes an image transfer station 35 and returns to its original position when portion 22 is exhausted rollers 64 and 98 are rotated by a drive system (101-113), Figs.4, 7, (not shown) to expose a fresh portion of web 21. When the whole web is exhausted, a gate 77 of carriage 32 is opened to permit removal and replacement of the cartridge. Carriage 32 is reciprocated in copier 10 by a chain (117), Fig.4 (not shown) driven by a motor (132). As the carriage nears its home position motor (132) is de-energized and a slow drive motor (140) accurately returns the carriage.
Patent GB-1477330-A (GB)
Title: Synchronization of disc drive assemblies
IPC: G11B27/10
Filed: 1974-11-15
Abstract: 1477330 Automatic control of speed INFORMATION STORAGE SYSTEMS Inc 15 Nov 1974 [19 Dec 1973] 49607/74 Heading G3R Two magnetic data storage discs are synchronized using index marks on the discs, which marks are sensed and the drive to at least one of the discs controlled accordingly so as to maintain the synchronization. In the embodiment, magnetic recording disc packs 12, 14 are driven in synchronism by master, slave motors 18, 19. The passing of index marks 31, 32 on the discs are detected optically or, as shown, magnetically by detectors 27, 28 whose outputs are fed to flip-flop circuits 34S and 34M. According to which index mark is detected first, one or the other of these flip-flops provides a digital output of duration dependent upon the time difference between the detection of the index marks. This output is integrated to form a ramp signal of slope proportional to this time difference and of a sign dependent upon which index mark is detected first. The integrator output is amplified and used by slave motor control 39 to maintain synchronism between the discs. The index marks may be magnetic inserts, or pre-recorded signals, on the discs, which use concentric data tracks.
Patent GB-1134651-A (GB)
Title: Fluoropyridines
Inventor: CHAMBERS RICHARD DICKINSON
IPC: C07D213/61
Filed: 1964-12-07
Abstract: 1,134,651. Polyfluoropyridine carboxylic acids; polyfluoropyridines and lithium derivatives thereof. NATIONAL RESEARCH DEVELOPMENT CORP. 18 Nov., 1965 [7 Dec., 1964; 26 May, 1965], Nos. 49716/64 and 22396/65. Headings C2C and C2J. Compounds of the general formula wherein one of the symbols R 1 , R 2  and R 3  is -COOH whilst the other two are F, and R is F or, when R 2  is -COOH, R 4  is H, F or -COOH, are prepared by converting 2,4,6- trifluoropyridine or a tetrafluoropyridine into the corresponding lithium derivative at a low temperature, reacting this with CO 2 , and hydrolysing the resulting product. The tri- and tetrafluoropyridine starting materials are obtained by hydrogenolysis of pentafluoropyridine, 3 - chlorotetrafluoro - pyridine or 3,5 - dichlorotrifluoropyridine. 2,5,6 - Trifluoropyridine is also obtained by this method from 3-chlorotetrafluoropyridine.
Patent GB-1127787-A (GB)
Title: Damped bearings
Inventor: BLIGARD ERLING JACOB
IPC: F16C25/08
Filed: 1965-11-23
Abstract: 1,127,787. Bearings. LITTON INDUSTRIES Inc. 23 Nov., 1965 [11 Dec., 1964], No. 49763/65. Heading F2A. A bearing assembly comprises a rolling bearing 20 with its inner race frictionally supported by a deformable element 34, frustoconical ends of element 34 engaging similar ends. on further elements 26, 54, one element being axially biased by a spring 62. The axial force on element 54 is translated into a radial force which deforms the element to centre the bearing. Friction between element 34 and the inner race damps axial vibrations. A damping fluid may be provided between element 34 and the inner race. Element 34 is of copper or other metal,' felt, plastics, asbestos, fibreboard or rubber:
Patent GB-1169010-A (GB)
Title: Sausage Casing Carton
IPC: B65D5/42
Filed: 1966-11-07
Abstract: 1,169,010. Cartons. UNION CARBIDE CORP. 7 Nov., 1966 [9 Nov., 1965], No. 49816/66. Heading B8P. A carton forming a sausage casing caddy comprises a tray 10 with apertured end walls 14 integral with a rectangular base and with extensions 13 on the side walls 17 doubled over to enclose extensions (26), (Fig. 2, not shown) on the ends of the end walls 14, overlying which are flaps 40 of a lid 30, which is secured to the tray 10 by side tabs 36 engaging in slots 25. Tabs (19) on the side wall extensions 13 are projected through slots (21) in the rectangular base. The sausage casings are wrapped in a rectangular plastics sheet 20 and during the humidification process, the flaps 40 of the lid 30 are folded back to expose the apertures 16 to the moist air. When the lid 30 is removed, the walls of the tray 10 are flexed outwardly facilitating removal of the casings.