baber/WOPTO huggingface dataset:
Patent GB-1194931-A (GB)
Title: Method of Manufacturing Radiation Indicator of Plastics Material
Inventor: MATSUMOTO SHOICHI
IPC: G01T1/04
Filed: 1967-09-06
Abstract: 1,194,931. Radiation dosimeter. TOKYO SHIBAURA ELECTRIC CO. Ltd., and TOYO CHEMICAL CO. Ltd. 6 Sept., 1967, No. 40651/67. Heading H5R. [Also in Division C3] In manufacturing a radiation indicator for ionizing radiation, the whole of a fresh batch of a chlorine containing polymer and not more than 3% by weight of the polymer of an acid-sensitive dye is hot roll milled ensuring that the whole of the batch undergoes substantially the same thermal treatment, and shaping the whole of the resulting mixture into the desired form ensuring that all of the batch is submitted to substantially the same thermal conditions. The chlorine containing polymer may be a homopolymer or a copolymer derived from monomers selected from vinyl chloride, vinylidene chloride, vinyl acetate and styryl chloride or the chlorine containing polymer may be a post-chlorinated hydrocarbon polymer. The acid sensitive dye may be dimethyl-amino-azobenzene, p-diethylamino - azobenzene, 4<SP>1 </SP>- dimethylamino - azobenzene - 2 - carboxylic acid, phenyl azo - diphenylamine, diphenyl - diazo - bis - 1 - naphthylamine - 4 - sodium sulphonate, thymol sulphophthalein, 3,3<SP>1</SP>,5,5<SP>1</SP> - tetrabromo - mcresol-sulphophthalein, a mixture of aniline blue and p-dimethylamino-azobenzene or a mixture of p dimethylamino - azobenzene - 4 - sodium sulphonate and a sulphonated triphenylmethane derivative. The mixture may also contain one or more salts of lead, tin, zinc or cadmium, or alternatively additives selected from alkylamines aromatic amines, quaternary ammonium salts, alkali salts of phenol, chlorides and oxides of metals and hydroxides of alkaline earth metals, the first set of additives acting to retard the action of the dosimeter so its use can be extended to higher dosages and the second set of additive acting to sensitize the dosimeter so it responds more readily to low dosages. The roll milled mixture may be formed into films by calendering and the amount of roll-milled mixture used is preferably less than the maximum batch size for the calender used.
Patent GB-1132179-A (GB)
Title: Improvements in or relating to liquid flow indicating devices
Inventor: PERKINS JOHN DAVID
IPC: G01P13/00
Filed: 1967-09-06
Abstract: 1,132,179. Measuring fluid-flow. ROLLSROYCE Ltd. Sept.6, 1967, No.40658/67. Heading G1R. In a liquid flow indicating device liquid leaks through a pipe 14 into a transparent container 12 until a predetermined quantity is reached and then overflows through a pipe 16.
Patent GB-1243334-A (GB)
Title: Improvements relating to weigh beams
Inventor: FORMAN ARTHUR WALTER
IPC: G01G23/32
Filed: 1967-09-06
Abstract: 1, 243, 334. Weighing apparatus. DRIVER SOUTHALL Ltd. Dec. 5, 1968 [Sept. 6, 1967], No. 40707/ 67. Heading G1W. In a weighing device comprising a pair of beam members each having a load or resistant carrying portion 50, 58, the portions 50, 58 extend on the same side of fixed supporting fulcra 52, 59 of the beam members and are so inter-connected that deflection in one direction of one portion 50 causes deflection of the other portion 58 in the opposite direction. As shown, the portions 50, 58 form parts of two bell-crank levers each of which form part of a parallelogram linkage comprising a leg member 53 or 60 and a stay 55 or 62, the leg members 53, 60 being arranged to support load and weight pans 70, 71, respectively. The bell-crank levers may be inter-connected by a member 69 which is maintained in tension or, alternatively, a member (76) Fig. 6 (not shown), maintained in compression. Knife-edge bearings may be provided or, alternatively, in a further embodiment Figs. 3 and 4, (not shown) flexure strips may interconnect members of parallelogram linkages. Relative movement of the parallelogram linkages when the weighing device is subjected to a load may be damped by a dashpot (48) and detected by an optical arrangement comprising a mirror (49a) tiltably movable by flexure strips (38b, 43b) Fig. 7 (not shown), connected to the mirror and to the linkages or by a transformer having its windings attached to one linkage and its core attached to the other linkage or by photo-electric cells, reed switches, or capacitance or induction devices. The weighing resistant may be provided wholly by weights or at least partly by an adjustable tension spring arranged between the two linkages. At least one of the parallelogram linkages may be replaced by a simple beam.
Patent GB-904118-A (GB)
Title: Parametric amplifier
IPC: H03F7/02
Filed: 1960-11-30
Abstract: 904,118. Parametric amplifiers. HUGHES AIRCRAFT CO. Nov. 30, 1960 [Dec. 9, 1959], No. 41220/60. Class 40 (9). A parametric amplifier comprises a cavity dimensioned to support resonances at the signal frequency fs and at a pump frequency fp lower than the signal frequency and containing a gyro-resonant body capable of producing from said pump frequency, energy of twice said pump frequency which in turn reacts with the signal frequency in the gyro-resonant body to produce an idler frequency fi = 2fp-fs. Resonances at the double-pump and idler frequencies may be supported either both by the gyroresonant body, or both by the cavity, or one by each. As described, a cylindrical cavity is used. In a first embodiment, Figs. 1, 2, the gyromagnetic body, a ferrite, is placed on the cylinder axis at “ of the distance from one end of the cylinder. The signal fs injected at 12, excites a TM120 mode whose magnetic field is shown by the full line 26. The pump frequency injected at 21 which is 135 degrees displaced from 12 excites a TM110 mode shown by dotted lines 27. A steady magnetic field H DC  inclined at 90 degrees to the signal input is applied to the ferrite. As shown in Fig. 3, the pump field hp has a component along the-Z axis (parallel to H DC ) and a component along the Y axis. These components interacting in the ferrite produce a double pump frequency field he along the X axis. This is supported as a TE 012  mode as shown at 36 in Fig. 2. The double pump frequency field interacting with the signal frequency field fs produces an idler frequency which is supported by the ferrite resonance which is established at this frequency by suitably choosing H DC . In these conditions energy is transferred from the pump wave to the signal wave and the output signal is abstracted at point 17 diametrically opposite to 12. Alternatively the terminal 12 could be used for both input and output by suitable use of a circulator. In a second embodiment, Figs. 4, 5 (not shown), the signal, pump and idler frequencies are supported by cavity resonances and the double pump frequency by ferrite resonance. In a third embodiment, Figs. 6, 7 (not shown), the pump and signal energies are supported by cavity resonances and the idler and double pump frequencies by ferrite resonancies. In a fourth embodiment, Figs. 8, 9 (not shown), all four frequencies are supported by cavity resonances.
Patent GB-1202932-A (GB)
Title: Sliding clasp fastener stringer and method for making the same
Inventor: ALBERTS HERBERT
IPC: A44B19/06
Filed: 1967-09-11
Abstract: 1,202,932. Moulding sliding clasp fasteners. H. ALBERTS. 11 Sept., 1967 [12 Sept., 1966], No. 41361/67. Heading B5A. [Also in Divisions E1-E2] A method of injection moulding fastener elements on to a stringer tape 24 to produce a sliding clasp fastener stringer, said tape having holes 25 at intervals corresponding to fastener element forming cavities 26 of a mould 20 (half of which is shown) so that the elements are moulded each with a part passing through the tape, comprises inserting the tape 24 into the mould with a filament 21 which is at least partially destructible, extending longitudinally of the mould and either parallel to or in contact with the tape, injecting molten plastics material into the cavities and allowing the material to solidify, removing the tape from the mould with the cast fastener elements and the filament and at least partially destroying the filament thereby providing an aperture in each of the elements for engagement by corresponding projections on fastener elements of an opposed stringer: The filament can be dissolved or powdered out; when polyamide is used for the fastener elements the filament is made of wood flour with sugar as a binder and after the moulding operation the filament is dissolved out by using hot water. Other suitable materials for the filament are wax, gelatine, a gelatine-starchgum arabic mixture and shellac. The filament can have a core of cotton thread in which case only the outer shell is soluble or otherwise removable. The tape can have a bead 14 if desired, the holes in the tape being behind the bead so that each element surrounds the bead, but a construction is described in which the bead is not used. The filament can either be spaced from the edge of the tape in which case the coupling hole of each element is separate from the hole receiving the tape edge or bead or alternatively the filament contacts the tape' edge so that only one hole is formed, the hole being partly filled by the bead or tape edge. The filament can be fastened to the tape by woven threads extending round the filament.
Patent GB-1327476-A (GB)
Title: Electrophotographic copying materials
IPC: G03G5/05
Filed: 1970-08-28
Abstract: 1327476 Electrophotographic element RICOH KK 28 Aug 1970 [28 Aug 1969] 41593/70 Heading H1K In a method of preparing an electrophotographic element by polymerizing at least one vinyl monomer using an initiator in a solvent or non-solvent for the monomer, dispersing the resultant reaction mixture in water together with a photoconductor and a sensitizer, and coating the dispersion on a support on which it is dried, discoloration or decomposition of the sensitizer by residual initiator is prevented by the action of a volatile free base which is included among the constituents of the dispersion before the inclusion of the sensitizer. The initiator is hydrogen peroxide, a persulphate, perborate or an organic peroxide. The dispersion may be mixed with the volatile base to bring the pH to 8À5 to 10, allowed to stand for 24 h. and then mixed with the photoconductor, water and the sensitizing dye. The vinyl monomers are preferably vinyl acetate, styrene, acrylic acid or esters thereof, hydroxyethyl or glycidal methacrylate or divinyl benzene. The volatile base may be ammonia, diethylamine, dimethylamine, triethylamine, or aniline but other bases are specified. Other additives to the dispersion may be palmitic acid, sodium lauryl sulphate, sodium dodecylbenzene sulphonate, dodecyl mercaptan, polyoxyethylene nonyl phenyl ether.
Patent GB-1492732-A (GB)
Title: Slag formation in the production of ferrochromium
IPC: F27D15/00
Filed: 1976-10-07
Abstract: 1492732 Ferrochromium slag HUTA SIECHNIEE 7 Oct 1976 [7 Oct 1975] 41633/76 Heading C7D To prevent the disintegration of the cooled and solidifed slag formed during the production of ferrochromium by the reduction of chromium ore with lime and ferrosilicon, B203 is added to the charge, resulting in a weather resistant slag which is useful as a building material. The B203 may result from the residues obtained in the production of boric acid and/or borax which contain 2-7% B 2 O 3 , or from boron ore, which contains more than 30% B 2 O 3 . If the residues are used, the lime used to produce the ferrochromium may be reduced by the same amount as the lime contained in the boric acid/borax residues, thus giving a further saving in costs.
Patent GB-1532378-A (GB)
Title: Magnetic game apparatus
IPC: A63F9/00
Filed: 1977-10-06
Abstract: 1532378 Ski game PLAST & FORM AS 6 Oct 1977 [7 Oct 1976] 41678/77 Heading A6H Game apparatus comprises a Figure 6 on an inclined course and a magnet 7 operated by gravity (a sliding weight 9) and situated beneath the course for attracting the figure and carrying it down the incline. A timer measures the time for a downhill run. Wires 11a, 11b attached to a pivoted lever 8 on the weight 9 pass through a handle (12) as the figure moves downhill. By braking one of the wires with a thumb, an operator can cause the figure to zig-zag around obstacles. The wires can also pull a figure back to retrace part of the course. Braking can also be achieved by suspending the weight from a wire by two aligned rings.
Patent GB-1497345-A (GB)
Title: Rho-xylylenediphosphonic acid dyes
IPC: C07F9/12
Filed: 1975-02-10
Abstract: 1497345 Dyestuffs containing phosphonic acid groups BURLINGTON INDUSTRIES Inc 10 Feb 1975 [11 Feb 1974 18 Dec 1974] 42092/76 Divided out of 1497344 Heading C4P [Also in Division D1] Novel reactive dyestuffs have the formula  (wherein Dye is a chromophore) or are amine or ammonium salts of these acids. Preferably the chromophore is azoic but it may also for example be an anthraquinone chromophore. In examples illustrating the preparation of representative dyestuffs, o-amino-p-xylylene-diphosphonic acid is diazotized and coupled variously with N-benzoyl J-acid, N-methyl J-acid, #-naphthol, F-acid and 3 - methyl - 1 - (p - sulphophenyl) - 5 - hydroxypyrazole and is also condensed, without diazotization with bromaminic acid. The dyestuffs are used to dye polymeric substrates containing active hydrogen atoms including cotton, wool, silk, synthetic polyamides and viscose, as described in Parent Specification.
Patent GB-1332394-A (GB)
Title: Valve for use as a pressure equalizer in pneumatic systems
Inventor: DALL H
IPC: F16K3/24
Filed: 1971-09-09
Abstract: 1332394 Valves FISKER & NEILSEN AS 9 Sept 1971 [11 Sept 1970] 42118/71 Heading F2V A fluid flow control valve comprises a housing 1 having two bores 5, 6 leading to its interior, and a rotatable valve member 2 having an elliptical rib 9 so that in one position (shown in bold lines) the bores are isolated and in a second position (shown in chain dotted lines) the bores are connected. The valve member may be provided with several axially spaced ribs and the housing with additional bores, for example at 16. The valve housing is made of relatively rigid plastics material either thermoplastic or thermosetting and the valve member of a less rigid plastics material.
Patent GB-915696-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J75/00
Filed: 1960-12-08
Abstract: The invention comprises compounds having the formulae: <FORM:0915696/IV (b)/1> <FORM:0915696/IV (b)/2> <FORM:0915696/IV (b)/3> wherein Y is hydroxy-methylene, lower hydrocarbonacyloxymethylene, or carbonyl, X is a -bromo, a -iodo or b -fluoro, and R is a lower alkylene radical containing from 2-3 carbon atoms in the oxygen to oxygen chain and processes for the preparation thereof by brominating a compound having the formula <FORM:0915696/IV (b)/4> wherein Z is carbonyl or hydrocarbonacyloxy-methylene e.g. with an N-bromoamide or N-bromoimide, and reacting the so obtained 16b -bromo compound or the corresponding 16b -iodo compound with a heavy metal fluoride e.g. silver bifluoride to produce the corresponding 16b -fluoro compound.  Subsequently a 3-ester group if present may be hydrolysed to form a 3-hydroxy group, which may be oxidised to form a 3-keto group and this in turn ketalised with a lower alkyl glycol.  Further, reduction of an 11-keto group to form an 11b -hydroxy group may be effected for example with lithium aluminium hydride and in addition esterification of the 21-hydroxyl group may be carried out.  Anti-inflammatory compositions containing compounds of the first formula are administered as tablets, elixirs, solutions, suspensions, creams and ointments.  Specifications 749,198 and 915,697 are referred to.
Patent GB-1514496-A (GB)
Title: Analogue to digital to analogue storage and retrieval for a plurality of photometric blanking values
IPC: G01N21/25
Filed: 1975-10-15
Abstract: 1514496 Photometric analysis apparatus COULTER ELECTRONICS Inc 15 Oct 1975 [17 Oct 1974] 42346/75 Heading G1A In apparatus for photometric analysis an arrangement for storing and retrieving signals from a plurality of colorimeters at a test station 38 comprises a transmission to absorbance converter 106, an A/D converter 108 and a memory 110 which are enabled to produce and store a digital absorbance value only when aliquots of a reference serum are within the test station, means for addressing the signals according to the colorimeter providing the signal and a D/A converter to retrieve corresponding analog signals when test sample aliquots are within the test station. Tubes 14 on an outer conveyer line 10 containing a reference serum are distinguished from test samples by a collar 104 which operates a selected one of a number of switches 42 to 50 according to the number of aliquots, e.g. 2 to 6, of the serum to be tested. By the time the selected switch is operated, aliquots of the reference serum on the inner conveyer 20 have had reagents added at station 36 and are within the test station 38. The switch enables T/A modules in converter 106 to feed absorbance analog signals from each colorimeter to a multiplexer 108, enables an A/D converter 108 to convert the analog value to a 12-bit digital one and enables memory 110 to store said digital value, the value stored being addressed by a 6-bit address output from a programmable socket, Fig. 4A (not shown) in the converter 106. A "blank pulse" signal when test sample aliquots are subsequently in the test station 38 enables read-out from the memory to the D/A converter 110 and the retrieved reference analog value is stored in a capacitor in the appropriate T/A module in converter 106. The capacitor is discharged until the stored value equals the test aliquot value and the discharge time converted into a transmission value output at "count window".
Patent GB-908077-A (GB)
Title: Improvements in or relating to the recovery of olefins from acid extracts
IPC: C07C7/171
Filed: 1960-12-09
Abstract: In the separation of an olefin from a hydrocarbon mixture by extraction with sulfuric acid, the olefin is recovered by treating the acid extract with a hydrocarbon or halogenated hydrocarbon having a boiling point substantially different from the olefin. The extraction with acid is effected conventionally at 0-210 DEG F. using 50-100% acid, specific concentrations and temperatures being given for the separations of isobutene from n-butenes, propene from propane, ethylene from ethane, n-butenes from butane and isopentenes from n-pentenes.  Prior to re-extraction of the olefin the acid extract may be purified.  Purification may be effected by washing with a C4-C12 hydrocarbon, preferably the one to be used in the re-extraction; this washing is effected at 20-130 DEG F. with an acid extract-hydrocarbon ratio of 4-50:1 using an extraction column or mixing and settling vessels. Alternatively the acid extract is subjected to vacuum stripping at 1-29 inches of mercury and not more than 80 DEG F.  In the re-extraction, suitable solvents are C3-C15 hydrocarbons and C1-C15 halogenated hydrocarbons, e.g. propane, n-butane, pentanes, hexanes, octane, toluene, a polymer of isobutene, pentenes or hexenes or methyl chloride.  The ratio of solvent to acid extract may be 0.1-20:1 at 90-250 DEG F. and 0-250 p.s.i.g.  In a preferred embodiment the hydrocarbon solvent p  is mixed at a temperature at least about its boiling point for 0.1-600 seconds with the acid extract so that the olefin is predominantly in the vapour phase and then the mixture is distilled; if desired the hydrocarbon may be superheated before mixing with the extract.
Patent GB-981212-A (GB)
Title: Portable rock drill
IPC: E21B7/02
Filed: 1963-10-29
Abstract: 981,212. Boring earth &c. J. K. SMIT & SONS INTERNATIONAL Ltd. Oct. 29, 1963 [Nov. 6, 1962], No. 42620/63. Heading E1F. [Also in Division B3] A portable rock drill 15 comprises a drive motor 50 having a drive shaft 66, a driven shaft 69 having pinions 78, 79, a coupling 67 connecting the shafts, a hollow drill spindle 82, gears 80, 81 axially slidable on the spindle, means 120 for moving the gears on the spindle, and means 95 for supplying cooling fluid to the bore of the spindle. The coupling is a centrifugal clutch, and the gearing may be set in neutral, and for slow and high speed rotation. Water supplied by the passage 95 is prevented from reaching the gearing by a seal device 97 and a bearing seal 108, and should the device fail water leaks through a port 107. The drill is raised and lowered on posts 11, 11a by chains 31, 31a the posts being adjustable for inclination to base 13. The motor is electric pneumatic hydraulic or an I.C. engine. The spindle is connected to a string of drill rods or a core barrel. The drill may be used without the posts and base, a circular grip 135 facilitating handling.
Patent GB-1439669-A (GB)
Title: Hair fixatives based on polystyrene sulphonates
IPC: A61Q5/06
Filed: 1973-09-11
Abstract: 1439669 Sulphonated polymers in hair treating compositions NATIONAL STARCH & CHEMICAL CORP 11 Sept 1973 [13 Sept 1972] 42644/73 Heading C3P [Also in Divisions C4 and A5] A hair-setting composition is packaged in an aerosol container and comprises an aqueous or aqueous/alcoholic solution of a sulphonated polymer selected from sulphonated polystyrene, sulphonated styrene copolymers and soluble salts of said polymers, and a pressuring amount of an aerosol propellant; the polymer having an average molecular weight of 6000-7,000,000, and being present in an amount of 0À1 to 10À0 wt. per cent of the total solution. The aqueous alcoholic solvent, when used, usually comprises a mixture of water and ethanol, and optionally, 2-amino-2-methyl-1,3-propane diol. Propellants used are isobutane/propane mixture and isobutane. Some examples describe non-aerosol compositions, although these are not claimed, but their use is.
Patent GB-1141405-A (GB)
Title: Insulating method for electrical machinery and apparatus
IPC: H01F27/02
Filed: 1966-09-23
Abstract: 1,141,405. Electric insulation; transformers. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 23 Sept., 1966 [27 Sept., 1965; 19 Jan., 1966 ; 12 May, 1966], No. 42654/66. Headings H1A and H1T. An electromagnetic core or coil is insulated by coating it with porous insulating material comprising an inorganic powder mixed with a synthetic resin, and impregnating said coating with a liquid insulating material. In one form an annular core is bound with fibrous insulation tape which may be reinforced with cotton or nylon, and dipped into a solvent (acetone or methanol) which has semi-cured phenol resin dissolved in it and contains calcium carbonate in suspension. To improve the surface corona resistance powdered alumina may be included in which case an epoxy resin is used. The porous coating is dried then impregnated (e.g. by vacuum impregnation) with a thermoplastic resin (polyethylene or polypropylene), a microcrystalline wax, a thermosetting resin, polybutane oil, a mineral oil or an epoxy resin with an acid anhydride as a curing agent. A transformer (Fig. 2) comprises three such coils, the low voltage coil 10 being separated from the high voltage coils 9 by a shunt core 11. The connections to the cores pass through porcelain insulators 15, 16 grouted with resin 20 and having rubber packing discs 21, 22 which together with a rubber packing disc 28 and a resin seal 29 prevent invasion by moisture. The casing is filled with micro-crystalline wax, pitch or asphalt insulation 25 and a liquid insulator 26 is included between the insulation 25 and the coils.