baber/WOPTO huggingface dataset:
Patent GB-1042970-A (GB)
Title: High velocity burner
IPC: C21D9/70
Filed: 1963-12-09
Abstract: 1,042,970. Controlling soaking pit furnaces; gas burners. LOFTUS ENGINEERING CORPORATION. Dec. 9, 1963 [March 28, 1963], No. 48546/63. Headings F4B and F4T. A high velocity gas burner 4 for heating a soaking pit 2 comprises a gas duct 15, two annular concentric air chambers 10, 11 discharging air through orifices 12, 13 in a refractory baffle 6, and a flap valve 40 controlling the flow of air from a duct 7 into the air chambers 10, 11. In one position of the flap valve 40 the chamber 10 only is supplied with air, in another position the other chamber 11 only is supplied and in a third position both chambers are supplied. The orifices 12, 13 are arranged in two circles concentric with the gas duct 15 but in a modification, Figs. 4, 5 (not shown), the orifices are arranged in a single circle, there being two orifices 12a between each two orifices 13a. The air is supplied by a blower 20 and is heated by a recuperator comprising two sets of steel tubes 18 positioned in a flue 19 of the soaking pit. The gas is supplied by a line 14 and is controlled by a valve 30 actuated by a motor 26 operated by an amplifier and temperature indicator 25 responsive to a thermocouple 24 disposed in the soaking pit. The air flow is automatically controlled in accordance with the gas flow by a butterfly valve 36 actuated by a motor 39 connected pneumatically or hydraulically to a gas-air ratio controller 35 responsive to the pressures on the upstream and downstream sides of orifice plates 31, 32 in the gas and air supply lines. The flap valve 40 controlling the flow of air into the air chambers 10, 11 of the burner is actuated by a motor 45 electrically energized by a gas flow recorder 47 receiving through tubes 33, 48 the differential pressure at the orifice plate 31 in the gas line. At the start of an ingot-soaking process the air and gas are delivered at maximum capacity and the flap valve 40 directs the air into both chambers 10, 11. At a preset temperature of the indicator 25 the gas valve 30 gradually closes and the temperature of the pit decreases so that consequently the gas valve again opens. This cycle is repeated. When the gas flow is less than two-thirds of the maximum rate the recorder 47 operates the flap valve to stop the flow to the inner chamber 11. When the ingots reach the desired temperature the flap valve 40 is thrown through 180 degrees to open the flow of air to the inner chamber 11 and stop the flow to the outer chamber 10.
Patent GB-1157139-A (GB)
Title: Improvements in a Method and Device for the Continuous Analysis of the Composition of a Gas
IPC: G01N21/27
Filed: 1967-10-25
Abstract: 1,157,139. Infrared gas analysers. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. Oct. 25, 1967 [Oct.25, 1966], No. 48575/67. Headings G1A and G1N. An electric gas analyser is provided with calibration facilities associated with two standard gases whereby the output characteristic of the measuring equipment, nominally linear, is automatically corrected to give the known correct voltage signals for the two standard gases, by means of a calibration unit (Fig. 2) which is energized when required to selectively operate switches 1-11 as follows. a) With the first standard gas in the analyser, the test signal voltage U is compared at A2 with the known correct signal e 10  on potentiometer P5, and any difference is eliminated by motor M2 adjusting potentiometer P2. b) With the second standard gas in the analyser, the gain of amplifier A1 in the measuring equipment is adjusted at P1 by motor M1 until the difference between the present test signal and the previous test signal is equal to the known difference e 20 -e 10  on potentiometer P6 between the signals for the two standard gases. c) With a test gas in the analyser, the signal e 10  of the first standard gas is added to the test signal U and motor M3 adjusts potentiometer P3 to measure the output signal voltage, and also drives the potentiometer P4 of a recorder.
Patent GB-1304868-A (GB)
IPC: G21K1/06
Filed: 1970-10-13
Abstract: 1304868 Working crystals; X-ray apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 Oct 1970 [16 Oct 1969] 48587/70 Heading B5E [Also in Division H5] A method of manufacturing a crystal for the monochromatization of X-rays comprises securing a wafer-shaped crystal 1 to a flexible support 4 and then shaping the crystal into a form appropriate for focusing X-rays emanating from the crystal. A wafer 50 x 20 x 2 mm. is secured by adhesive 3 or molecular contact to the support which is of spring steel 0À1 mm. thick. The face 6 remote from the support is ground to a radius of curvature R 1  and transverse cuts 8 may be made in the face 6. The crystal may be mounted by the support 4 on a supporting block 11 having walls 12, 13 formed with curved surfaces 14, 15 for receiving the bent support 4 carrying the crystal. In another embodiment, the supporting block is formed with an aperture over which the support and crystal are mounted. The crystal mounted on the supporting block may be used in X-ray spectrometry or X-ray diffraction apparatus.
Patent GB-1023215-A (GB)
Title: Hardening mixtures based on poly-1,2-epoxides of oligomers of butadiene or copolymers of butadiene and alkenylaromatic compounds
Inventor: STEDEN FRANZ
IPC: C08G59/14
Filed: 1962-12-27
Abstract: A curable polyepoxide composition comprises a poly-1,2-epoxide of a linear oligomer of two to four butadiene units or a linear co-oligomer of one to four butadiene units and an alkenylaromatic compound having the general formula <FORM:1023215/C3/1> in which R1 denotes a hydrogen atom or -CH3, -C2H5, -C3H7 or -C4H9 and R2 denotes a radical R1, -CH=CH2 or Cl, and a curing agent.  The polyepoxide may be epoxidized 3 - methylhepta - 1,4,6 - triene; 3 - methylhepta - 1,3,5 - triene; 3 - methyl-hepta - 2,4,6 - triene; octa - 1,3,6 - triene; octa - 1,3,5 - triene; dodecatetraene; methylundecatetraene; dimethyldecatetraene; hexadecapentaene; methylpentadecapentaene; dimethyltetradecapentaene; trimethyltridecapentaene or mixtures thereof or 1-phenyldeca-1,4,8-triene. The curing agents may be polycarboxylic acids their anhydrides in the presence or absence of polyols or amines.ALSO:Linear oligomers of two to four butadiene units or linear co-oligomers of one to four butadiene units and an alkenylaromatic compound, such as 3 - methylhepta - 1,4,6 - triene; 3 - methylhepta - 1,3,5 - triene; 3 - methylhepta - 2,4,6 - triene; octa - 1,3,6 - triene; octa - 1,3,5 - triene; dodecatetraene; methylundecatetraene; dimethyldicatetraene; hexadecapentaene; methylpentadecapentaene; dimethyltetradecapentaene, are epoxidized by peroxy acids or b -hydroxyethylacetyl peroxide.  In examples, (1) 3 - methylheptatriene, (2) 1 - phenyldeca - 1,4,8 - triene, (9) mixed isomers of dodecatriene and (10) mixed oligomers containing 4 butadiene units are epoxidized using a methylene dichloride solution of peracetic acid in the presence of anhydrous sodium carbonate to give mixtures of the corresponding epoxides.  The mixtures of Examples (1) and (2) are fractionated to give (1) methylheptatriene monoxide and dioxide, and (2) 1-phenyldeca-1,4,8-triene dioxide and trioxide.
Patent GB-1470124-A (GB)
Title: Plastics compositions
IPC: C08K3/00
Filed: 1974-11-11
Abstract: The components shown below are mixed with one another: 3-99% by weight of crystalline polyolefin, for example isotactic polypropylene, 0.4-80% by weight of non-crystalline polyolefin, preferably polyisobutylene, 0.5-95% by weight of pigment and/or filler and optionally other polymers. It is important here that the mixing is carried out in the presence of at least 0.1% by weight, expediently 0.5-10% by weight, of a surfactant which is heat-resistant at least up to 110<o>C. This measure enables considerable amounts of filler to be incorporated into the plastic while retaining or even improving essential properties (for example tear strength, elongation at break, flexibility, orientability (stretchability), injection-mouldability, colourability (dyeability).
Patent GB-1200396-A (GB)
Title: Manufacture of starch-containing food products
IPC: A23L19/18
Filed: 1968-10-15
Abstract: 1,200,396. Snack foods. NATIONAL STARCH & CHEMICAL CORP. 15 Oct., 1968 [27 Oct., 1967], No. 48753/68. Heading A2B. A starch-containing fluffy, crisp, and light-textured ready to eat food product is obtained by moistening a gelatinised starch product derived from a starch base selected from root and root-like starches, the gelatinised starch product being characterized by its ability to swell in water at 25‹C. to such an extent that 1 gram of the starch will absorb at least 10 grams of water, shaping the moistened blend, for example by extruding, and cooking by means of a heating process, for example baking, which simultaneously effects a substantial increase in the volume of the product and a marked decrease in its moisture content. There may be incorporated with the starch product other components, such as potato products and vegetable oil, peanut butter, fried bacon bits and bacon drippings, cocoa with softened chocolate and synthetic sweeteners, or a blend of cheese, salt, monosodium glutamate, and mustard, onion, and garlic powders. Suitable starches include tapioca, waxy maize, and waxy milo. The starches may have been hydrolised, oxidised, esterified, etherified and also inhibited (i.e. cross-linked).
Patent GB-1526835-A (GB)
Title: Ergoline derivatives
IPC: C07D519/04
Filed: 1975-11-27
Abstract: 1526835 Ergoline derivatives ELI LILLY & CO 27 Nov 1975 [6 Dec 1974] 48901/75 Heading C2C Novel compounds II in which R is CH 2 SOCH 3 , NO 2  or NC, and non- toxic, pharmaceutically acceptable acid addition salts thereof, are prepared by (a) reacting a compound III in which Q is Cl, Br, I, methanesulphonyloxy or p-toluenesulphonyloxy, with dimethylsulphoxide in the presence of a strong base to form a compound II in which R is CH 2 SOCH 3 , or with sodium nitrite in the presence of an organic solvent to form a compound II in which R is NO 2 , or (b) reacting a compound IV  with methanesulphonyl chloride or chloral, and treating the resulting compound II in which R is NHSO 2 CH 3  or NHCHO with thionyl chloride, phosphorus oxychloride or phosgene in the presence of a base to give a compound II in which R is NC, and optionally reacting a compound II with an acid to form the corresponding acid addition salt.  Pharmaceutical compositions having prolactin inhibition activity, for oral or parenteral administration, comprise a compound of the invention together with a pharmaceutical carrier.
Patent GB-1245314-A (GB)
Title: Photographic silver halide developing solutions and processes
Inventor: KASMAN SIDNEY
IPC: G03C5/305
Filed: 1969-10-06
Abstract: 1,245,314. Photographic silver halide developing solution. POLAROID CORP. Oct. 6, 1969, No.48928/69. Heading G2C. A photographic silver halide developing solution comprises (a) an alkali, (b) a hydroxylamine silver halide developing agent of the formula: - wherein R<SP>1</SP> is alkyl, alkoxyalkyl or alkoxyalkoxyalkyl and R<SP>2</SP> is H, alkyl, alkoxyalkyl, alkoxyalkoxyalkyl or alkenyl, each of said alkyl, alkoxy and alkenyl groups containing from 1 to 3 carbons, and (c) a silver halide solvent the shelf life of which has been increased by the inclusion therein of 1 to 30g per litre of triethanolamine, morpholine, N-ethyl morpholine, ethanolamine, 3-diethylamino -1, 2-propanediol, N, N-diethylaminoethanol, tris-2-propanolamine, N, N-dihydroxyethyl glycine, ethylenediamine tetraethanol or cellulose diethylamino -#-ethyl ether. The solution preferably includes a polymeric film-forming, viscosityproviding agent which may be hydroxyethyl cellulose. The developing agent is preferably N, N-dimethoxyethylhydroxylamine or N, N-diethoxyethylhydroxylamine. This solution is used in the silver salt diffusion transfer process preferably with a regenerated cellulose silver receptive stratum. British Patent Specification 789, 837 is referred to.
Patent GB-1486637-A (GB)
Title: Coupling arrangements for optical waveguides
IPC: G02B6/38
Filed: 1974-11-12
Abstract: 1486637 Connecting light guides WESTERN ELECTRIC CO Inc 12 Nov 1974 [15 Nov 1973] 48983/74 Heading G2J To couple an optical wave between a thin-film waveguide 11 and a fibre waveguide 16, Fig. 1, the film 11 is gradually tapered between Xa and Xb so that at Xc the wave enters the substrate 12 which is provided with a cavity 15 for receiving the fibre 16 and disposed to intercept the path of the wave in the substrate 12. The end of the cavity 15 may contain a filler 18 of higher R.I. than the substrate to form a lens. In a modification for coupling to a cladded fibre Fig. 4, the cavity 45 is angled and tapered as shown and filled with filler 48. For coupling from an uncladded, larger fibre 16 to a cladded, smaller fibre 36 a "junction box" 31 may be used, Fig. 3B, which comprises two cylindrical cavities connected by a tapered cavity containing a filler 38 of slightly greater R.I. than the box 31. Materials Film 14, 41 may be a glow discharge polymer formed from vinyltrimethylsilane of R.I. 1À53 at 6328. Substrate 12, 42 may be poly(methyl methacrylate) of R.I. 1À49 at 6328. The film may have a thickness of 4000 before tapering. Fibre 16 may have a diameter of 0À5 mm and R.I. of 1À52. Filler 18, 38, 48 may be monomeric cyclohexyl methacrylate which is polymerized in situ. Junction box 31 may be poly(methyl methacrylate) machined to shape or monomeric methyl methacrylate which is polymerized around removable glass inserts.
Patent GB-1111385-A (GB)
Title: Monocrystals of silver chloride
Inventor: SKAYA MARIANNA PETROVNA SHACKO
IPC: C30B13/00
Filed: 1963-12-12
Abstract: A mono-crystal of silver chloride contains between 0.005 and 0.25% of mercuric chloride by weight.  The crystals can be prepared by mixing powdered silver chloride with powdered mercuric chloride and placing the mixture in an ampoule in a vertical tube furnace so that the lower part of the ampoule is heated.  The heated portion of the powdered mixture slowly melts. The ampoule is gradually lowered and passes through the highest temperature zone (about 470 DEG  C.), leaves the highest temperature zone and gradually crystallizes.  The crystal is then annealed at between 300 DEG  and 400 DEG  C.
Patent GB-1286951-A (GB)
Title: Improvements in and relating to paints
Inventor: SELLARS KEITH
IPC: C09D5/29
Filed: 1968-06-25
Abstract: 1286951 Multicoloured paints containing polyvinyl alcohol HARLOW CHEMICAL CO Ltd 23 Sept 1969 [25 June 1968 17 Oct 1968] 30272/68 and 49366/69 Heading C3P A multicoloured paint comprises a dispersion of differently coloured particles derived from two or more aqueous film-forming polymer emulsions each containing polyvinyl alcohol in an aqueous outer phase comprising a substance which insolubilizes polyvinyl alcohol, particularly borate or chromium ions. The pigmented or coloured aqueous emulsion may be prepared by dispersing titanium dioxide and a cationic surfactant in a plasticizer e.g. dibutyl phthalate, and then tinting the white titanium dioxide base to the required shade by addition of sufficient water-dispersible pigment. The aqueous emulsion may be comprised of homo- or copolymers of vinyl acetate or other ethylenically unsaturated compounds stabilized with polyvinyl alcohol e.g. acrylic esters. The aqueous solution containing borate ions is provided by an aqueous solution of borax containing methyl cellulose or hydroxyethyl cellulose as thickener, and a thixotropic agent e.g. triethanolamine titanate or a natural or synthetic clay. Coloured aqueous emulsion containing polyvinyl alcohol may be admixed with borate solution and (if necessary) the gel so formed comminuted to produce the dispersion. Alternatively boric acid may be added to the emulsion and the pH of the resulting mixture adjusted with alkali. A further filmforming polymer emulsion binder stabilized with a cellulose ether colloid may be incorporated into the outer phase in an amount of up to 20% based on total weight, to improve the properties of the coating obtained. The paints may contain extenders, surfactants and fungicides. Examples are directed to the preparation of (1) a red flecked white paint by sequential addition to aqueous borax solution of a red-pigmented emulsion followed by a "background" whitepigmented emulsion, (2) a three pigment paint by the sequential addition of small amounts of red, white and blue pigment emulsions in turn to aqueous borax solution, and (3) a blue flecked white paint by a method involving the independent addition of each pigmented emulsion to aqueous borax solution, followed by mixing of the two dispersions.
Patent GB-1276428-A (GB)
Title: A process for epoxidizing olefins with hydroperoxides
Inventor: WATTIMENA FREDDY
IPC: B01J21/00
Filed: 1970-10-20
Abstract: 1276428 Boron containing catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 20 Oct 1970 [22 Oct 1969] 49766/70 Heading B1E [Also in Division C2] Title compositions, used in the epoxidation of olefines, comprise boron, preferably trivalent B, in chemical combination with silica or silicates. Compositions contain at least 0.1%, preferably 0.2-25% B or B 2 O 3 , and the silica or silicates contain at least 50%, preferably at least 75%, Si as SiO 2  and have a specific surface area of at least 1 m<SP>2</SP>/g, preferably 25-800 m<SP>2</SP>/g. Suitable siliceous solids are synthetic, porous silica in a relatively dense, close packed form, consisting of particles of amorphous silica flocculated or linked together, including silica gel and precipitated silica, synthetic silica powders consisting of particles of amorphous silica flocculated in openpacked, readily disintegrated, loosely knit aggregates, especially fumed pyrogenic silica, crystalline alumino-silicates (molecular sieves); crystalline mineral silicates; clay minerals and micaceous materials. The composition may also contain promoters especially oxides of Mg.Ca, Sr and Ba or compounds easily converted into the oxides. Amounts up to 5% promoter are required. The catalyst is prepared by conventional means and may be subjected to pretreatment, e.g. heating in a non reducing gas at 350-800‹C for 1-18 hrs. The compositions may be employed as powders, flakes, spheres or pellets. In the use of the composition to catalyse the epoxidation reaction up to 10% oxides or hydroxides of Sn, Nb, Ta, Cr, Mo, W, Re, U, Bi and rare earth elements of atomic Nos. 57-71 inclusive, may be included.
Patent GB-1337451-A (GB)
Title: Apparatus for disintegrating calculi
IPC: A61B17/32
Filed: 1971-10-28
Abstract: 1337451 Apparatus for disintegrating calculi E KLOZ and H KLOZ 28 Oct 1971 [3 Nov 1970] 50041/71 Heading ASR  Apparatus for disintegrating calculi comprises a piezo-electric convertor having two ceramic plates 2, 2a clamped between a steel body 1 and an aluminium body 3, by means of a bolt 4 and a nut 4f, the bolt having a portion 4c of reduced cross-section within the aluminium body and adjacent to a vibration emitting end face of the aluminium body, and a vibration transmitting portion 4d which has a shoulder engaging the vibration transmitting face of the body 3, is tapered, and has a screw threaded socket (4e), Fig. 3 (not shown) into which is screwed a vibration probe 29. The vibration probe and the photoconductor Z 1  of a cystoscope Z extend through a tubular washing probe (23), Figs. 9, 9a (not shown). The vibration transmitting portion 4d is curved and tapers exponentially. A bracket 10, 11 or 5, 6 carries a coupling member 7 for supporting the washing probe and the cystoscope on the converter. Various forms of vibration probe are illustrated in Figs. 11-14 (not shown). The vibration probe may be used with a gripping device, Fig. 6 (not shown).
Patent GB-1149970-A (GB)
Title: Improvements relating to measurement
IPC: H03M1/00
Filed: 1966-11-10
Abstract: 1,149,970. Selective signalling. WIRTH GALLO & CO. 10 Nov., 1966 [24 Nov., 1966], No. 50401/66. Heading G4H. In a measuring system employing a measuring instrument or transducer of the type that provides output signals that require processing before they can be used to control an indicator, the output signals are processed twice, once to determine a measured value and once to determine a comparison value, this processing taking place in measuring and comparison periods respectively, which may overlap (but not coincide) in time, and at the end of both periods the two results obtained are compared, agreement or lack of agreement determining the subsequent operation of the system. As described, the output signals from a string balance are processed during two non-coinciding periods and if the measured and comparison values obtained agree with each other it is assumed that the balance has reached an equilibrium condition and that measured value is an accurate measure of the load on the balance, while if the two values disagree it is assumed that the balance has not reached an equilibrium condition and that neither value is accurate. In the former case for the comparison values are derived and compared with the measured value-continual agreement indicating that the load on the balance has not changed, and in the latter case the whole process is repeated to determine new measured and comparison values. The string balance employed in the system described is of the type that produces two electric signals, which, when the balance is in equilibrium (i.e. when it has come to rest after the load has been applied) have constant frequencies # 1  and # 2 , and the Specification shows that a measure of the load on the balance can be obtained by counting cycles of f 1  until a predetermined number n of cycles of f 2  has occurred. In a first embodiment, measurement and comparison value counts of f 1  are started simultaneously, the measurement count is continued until n cycles of f 2  have been counted and the comparison count until ¢n cycles of f 2  have been counted. At the end of the measurement count, the measurement count and twice the comparison count are compared and if they agree to within Œ1, it is assumed that the measurement count accurately measures the load on the balance. Further comparison value counts are then made and compared with the measurement value, which is assumed to remain correct until a disagreement is detected. When a disagreement is detected the measurement value is redetermined by making a further count. In a second embodiment the comparison count is made after the measurement count using the same equipment, the measurement count having been transferred to a store. In both embodiments, once the accuracy of the measurement value has been ascertained, multiplication by a key-set price per unit weight is effected and the result is visually displayed.
Patent GB-1474581-A (GB)
Title: Dual-temperature deuterium extraction process
IPC: B01D59/22
Filed: 1974-11-21
Abstract: 1474581 Deuterium extraction ATOMIC ENERGY OF CANADA Ltd 21 Nov 1974 [19 March 1974] 50502/74 Heading C1A A dual-temperature deuterium extraction process by exchange between a liquid and a gas e.g. H 2 S and H 2 O, uses a first stage comprising a hot and cold tower (10 and 11) with liquid and gas streams (solid line and broken line in Fig. 2, respectively) passing in countercurrent deuterium exchange relation, the gas being recycled from the top of the cold tower to the bottom of the hot tower via a humidifier sections 13a and 13b through which a liquid stream also passes, a dehumidifier 12 betweeen hot and cold towers (10 and 11) through which both gas and liquid streams pass, and means for heat exchange between humidifier and dehumidifier, wherein cold inlet feed liquid is heated in a heat exchanger 26 and fed to the process at the entry to the humidifier at a point between the liquid outlet of the hot tower and the liquid input to the humidifier and a portion of the liquid leaving the bottom of the hot tower is recycled to the top of the cold tower.