baber/WOPTO huggingface dataset:
Patent GB-837997-A (GB)
Title: Improvements in water-resistant polyurethane foams
IPC: C08J9/00
Filed: 1957-12-23
Abstract: A substantially open-cell polyurethane foam product of improved resistance to moisture is obtained by the reaction, in approximate parts by weight, of 100 parts of a polyester of a glycol and a dibasic acid which is a mixture of a major proportion of a dimerized 18-carbon unsaturated aliphatic acid with a minor proportion of a saturated dibasic acid, with about 15 to about 50 parts of a polyisocyanate in the presence of about 0.5 to about 5 parts of an amine selected from triethanolamine, tripropanolamine, diethanolamine and dipropanolamine, about 1 to about 5 parts of a tertiary functionally aliphatic amine free of hydroxyl, mercapto, amino and imino groups, and about 0.5 to about 6 parts of water, the polyester having a molecular weight between 700 and 5000. Optionally present in the reaction mixture are also an alkali carbonate (in solution in water) and a silicone oil.  In an example a polyester from adipic and dilinoleic acids, diethylene glycol and trimethylolethane is converted by reaction with toluene p  diisocyanate in a nitrogen atmosphere to a prepolymer which is then mixed with silicone oil, triethanolamine, dimethylcoca-amine and water to give a foam.  Adipic acid can be replaced by sebacic, isosebacic, succinic, glutaric or pimelic acid.  A mixture of the polyester of Example 2 of the parent Specification with one derived from adipic acid and diethylene glycol can also be used.ALSO:A substantially open-cell polyurethane foam product of improved resistance to moisture is obtained by the reaction, in approximate parts by weight, of 100 parts of a polyester of a glycol and a dibasic acid which is a mixture of a major proportion of a dimerised 18-carbon unsaturated aliphatic acid with a minor proportion of a saturated dibosic acid, with about 15 to about 50 parts of a polyisocyanate in the presence of about 0,5 to about 5 parts of an amine selected from triethanolamine, tripropanolamine, diethanolamine and dipropanolamine, about 1 to about 5 parts of a tertiary functionally aliphatic amine free of hydroxyl, mercapto and imino groups, and about 0,5 to about 6 parts of water, the polyester having a molecular weight between 700 and 5000.  Optionally present in the reaction mixture are also an alkali carbonate (in solution in water) and a silicone oil. In an example a polyester from adipic and dilinoleic acids, diethylene glycol and trimethylolethane is converted by reaction with toluene diisocyanate in a nitrogen atmosphere to a prepolymer which is then mixed with silicone oil, triethanolamine, dimethylcocaamine and water to give a foam.  Adipic acid can be replaced by sebacic, isosebacic, succinic, glutoric or prinelic acid.  A mixture of the polyester of example 2 of the parent Specification with one derived from adipic acid and diethylene glycol can also be used.
Patent GB-1292819-A (GB)
Title: Improvements in or relating to dielectrics
Inventor: HOWELL VERNON THOMAS SEYMOUR
IPC: H01G4/22
Filed: 1969-08-13
Abstract: 1292819 Capacitors HIVOTRONIC Ltd 5 Aug 1970 [13 Aug 1969] 40421/69 Heading H1M A capacitor dielectric comprises a layer of plastics material, e.g. polypropylene or polycarbonate, impregnated with a mixture of an oil, e.g. a silicone oil, and a thickener, e.g. a gelling silicone, the mixture thickening or solidifying after impregnation. Multiple layers of the plastics material, optionally interleaved with paper layers, may be used.
Patent GB-1158552-A (GB)
Title: Apparatus for Ion Pumping and Pressure Measurement
IPC: H01J41/04
Filed: 1966-09-09
Abstract: 1,158,552. lonization manometers and pumps. GRANVILLE-PHILIPS CO. 9 Sept., 1966 [5 July, 1966], No. 40496/66. Heading H1D. Vacuum pumping or measuring apparatus comprises a hollow substantially cylindrical outer electrode 202 and at least one hollow substantially cylindrical further electrode 204 which is disposed within said outer electrode and parallel to the axis thereof, and which has an open structure to permit the passage of ions therethrough, the or each further electrode enclosing a respective elongate inner electrode 203 disposed along the axis thereof, and means 215 for injecting charged particles which are electrically attracted to the inner electrode into the electrostatic field between said further and inner electrodes, said means being adapted to impart the charged particles with insufficient energy to reach the further electrode 204 and with sufficient angular momentum about the axis of the further electrode such that a majority thereof cannot reach the inner electrode 203. Alternative embodiments comprise a similar arrangement with an additional suppressor grid (Figs. 3 and 4, not shown), and an arrangement with a plurality of grid-anode assemblies mounted inside a cathode, with a conduction heated sublimation device mounted along the axis of the cathode (Fig. 2, not shown). The particle injecting means 215 may comprise an iridium ribbon 218, Fig. 5, coated on one side with insulating material, e.g. oxide of Al, Be or Th, folded to hairpin shape before firing the insulation and providing an emissive coating of low work function material, e.g. thorium oxide or lanthanum hexaboride. A preferred emitter (Fig. 6, not shown) comprises a U- shaped flat strip (224) eleotrochemically etched from a sheet of pure tungsten. Electron orbiting is analysed mathematically and curves are provided (Fig. 9, not shown) from which the optimum axial and radial positioning of the emitter 215 can be determined.
Patent GB-1162245-A (GB)
Title: Mass Spectrum Analyser
IPC: H01J49/42
Filed: 1966-09-12
Abstract: 1,162,245. Mass spectrometers. ELECTRONIC ASSOCIATES Inc. 12 Sept., 1966 [13 Sept., 1965], No. 40579/66. Heading H1D. In a mass spectrometer of the quadrupole type such as described in Specification 773,689 in which either the R.F. voltage or the frequency is varied to sweep the mass spectrum, the ions are injected into the analyzer section through a circular aperture of diameter equal to the least distance r 0  from the central axis of the analyzer to each electrode in order to improve sensitivity. The ratio of R.F. voltage to D.C. voltage may also be varied as in Application No. 40578/66. Preferably the aperture is a circular opening in a flat plate or it may be cylindrical and have a focusing action. The aperture 21b may include, as shown, an ion blocking grid 30 with its four arms aligned with the asymptotic planes of the quadrupole electrodes 11. The electrodes may be circular or hyperbolic in cross-section.
Patent GB-1277775-A (GB)
Title: Fuel injection pump
Inventor: GRAFFMAN JOHAN HOLGER
IPC: F15B21/12
Filed: 1969-08-15
Abstract: 1277775 Fuel injection pumps; spray carburetters J H GRAFFMAN 15 Aug 1969 [23 Aug 1968 6 Dec 1968] 40828/69 Headings F1A and F1B The pumping chamber 15 of a fuel (e. g. petrol) injection pump for feeding a spray carburetter receives fuel from an inlet 7 through an inlet valve 9 having a lost-motion or frictioned connected with a reciprocating pumping piston 3. In the embodiment shown, the valve 9 co-operates with an annular seat 12 on the piston 3 and is movable away from the seat by an amount determined by the clearance between a transverse pin 14 fixed to the piston 3 and a transverse hole 13 in the valve 9. Fuel which does not pass to the chamber 15 returns to a tank through a line 38. The piston is reciprocated electrically or by a motor driven eccentric 33 acting via a piston-rod 18, 19. The return stroke of the piston 3 is performed by a spring 35. To provide for automatic stroke adjustment the rod 18, 19 is variable in length due to the interposition of an adjustably pre-loaded spring 22. The mean position of reciprocation is adjustable. In a second embodiment Fig, 2 (not shown) the piston is sealed by a diaphragm (104) and the valve is disposed in the cylinder head facing and in frictional contact with the piston (103), whereby the valve tends to follow the piston reciprocations.
Patent GB-1391098-A (GB)
Title: Geared motor
IPC: F16H1/06
Filed: 1972-09-04
Abstract: 1391098 Electric motors SWF-SPEZIALFABBIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 4 Sept 1972 [26 Nov 1971] 40867/72 Heading H2A [Also in Division F2] A gear 17 is integral with a motor driving shaft 30 and meshes a driven gear 16 mounted on a hollow stub shaft 24 carried by a bearing plate 12, which also supports the shaft 30, and the bearing plate 12 and driven gear 16 are made of plastics having substantially the same coefficient of expansion. In a modification, an intermediate gear is also made of plastics having the same coefficient of expansion.
Patent GB-1412188-A (GB)
Title: Accumulator for web-like material
IPC: B21C49/00
Filed: 1973-08-31
Abstract: 1412188 Web accumulators WEAN UNITED Inc 31 Aug 1973 [8 Sept 1972] 41016/72 Heading B8R A web accumulator comprises a first set of roller pairs 24 defining a circular inner roller basket and a second set of roller pairs 38 defining a circular outer roller basket, the baskets defining between them a space for the accommodation of two web coils joined by a referse loop. Each roller pair of the inner basket is supported on carriage members 25 slidably mounted on radially extending guide rods 26 and connected to arms 31 which are driven by screw jacks 34. The roller pairs of the outer basket are supported on carriage members 39 slidable on guide rods 42 and connected to rods 47 which are driven by screw jacks 45. The baskets are upright, the rollers of the lowermost two pairs being positively driven to feed in the web 10 which leaves the accumulator via a central spool. The web may be metal strip fed from a welding station to a pickling line.
Patent GB-1500478-A (GB)
Title: Process for two-stage digestion of natural products containing xylan in order to obtain xylose
IPC: C07C29/141
Filed: 1976-10-04
Abstract: 1500478 Extracting xylose from nut-shells SUD-CHEMIE AG 4 Oct 1976 [8 Oct 1975] 41052/76 Heading C2S A process for the two-stage digestion of xylancontaining natural products to obtain xylose comprises (i) digesting stone nut shells with 1À5-6 molar alkali metal hydroxide solution to split off and neutralize the acetic acid bound in the stone nut shells with a 1À5-6 molar alkali hydroxide solution to separate off and neutralize the acetic acid linked in the shells at 10-50 C. and (ii) diluting the digestion solution to a molar concentration of less than 0À75 and completing the alkaline treatment at a temperature of above 60 C. The shells may be coconut, almond, palm nut, olive, date stones or babacu nuts. The shells are preferably pulverized and treated with 1À75-2À5 molar alkali at up to 200 C. for ¢-3 hours followed by treatment with diluted alkali at the b.p. of the solution.
Patent GB-1511110-A (GB)
Title: Process for making prepasted vinyl wall covering
IPC: D06M17/00
Filed: 1976-10-04
Abstract: 1511110 Prepasted vinyl wallcovering GENERAL TIRE & RUBBER CO 4 Oct 1976 [23 Feb 1976] 41143/76 Heading B2E A pre-pasted wall covering consisting of a flexible vinyl film having a fabric backing is prepared by a process comprising applying to the fabric backing a composition comprising 100 parts per water moistenable starch, 100-35 parts of an organic polymer which has a tangent modulus of elasticity in bending at 5% of from 10-3000 M Pa and 100-300 parts of an organic liquid having a boiling point of from 45‹C to 150‹C the liquid being a solvent for the organic polymer and a non- solvent for the starch. The vinyl film used in making the wall covering may be polyvinyl chloride and it may have a thickness of from 5-15 mils. The fabric backing can be a cotton scrim or a non-woven fabric made from long filaments. Preferably the filaments are of polyester. The starch preferably has a particle size of less than 250 microns and preferred starch is a pregelatinizet amioca starch. Chemical modified starches may also be applied. The polymer may be an acrylic polymer such as a copolymer of methyl acrylate and methyl methacrylate or a copolymer of methylmeth acrylate, ethyl acrylate and acrylic or methacrylic acid. Rubbery copolymers such are those of butadiene and styrene may also be used. The preferred solvents are methyl ethyl ketone or methyl isobutyl ketone. A slip agent may be present such as hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose and the methyl ether of cellulose may be present. 0.1-10 parts of a biocide may be present in the coating. The preferred coating rate is 5-40 times per square metre and the coating may be applied by a trihelical applicator roll working in conjunction with a doctor knife.
Patent GB-1276177-A (GB)
Title: Improvements in or relating to gear pumps or motors
Inventor: ECKERLE OTTO
IPC: F04C15/00
Filed: 1969-08-19
Abstract: 1276177 Rotary positive-displacement pumps and motors O ECKERLE 19 Aug 1969 [19 Aug 1968 41233/69 Addition to 1159315 Heading F1F The parent invention is improved or modified by the gear-pump, or motor, having walls, or "control pistons", 6, 7 abutting the teeth of gears 2, 3 and fixed to walls, or "lateral discs", 22, 23 by pins 20, 21, the shafts 4, 5 extending through bores in the discs with clearance permitting only slight displacement of the control pistons perpendicular to a plane containing the axes of the shafts and thereby preventing undue wear and excessive movement of the pistons away from the gears. Pistons 15, 16, 17 and the lateral discs are pressure-loaded by the working fluid. Alternative embodiments, Figs. 5 and 6 (not shown), differ chiefly in regard to the pressure-loading of the control pistons.
Patent GB-1288106-A (GB)
IPC: F24H1/18
Filed: 1970-08-28
Abstract: 1288106 Water heater APPLICATION DES GAZ 28 Aug 1970 [20 Oct 1969] 41420/70 Heading F4A In a water heater, Fig. 3, the bottom wall 1 of the water tank 5 is heated by a burner 16 operating as shown in Fig. 1. The slightly divergent jet of gas 3 from nozzle 2 is projected perpendicularly towards bottom wall 1, entraining air as indicated by the arrows in Fig. 1, and is deflected radially outwards against the wall from the centre point of impact A. The speed of the gas jet is high enough to ensure that when lit by pilot jet 20 the flame forms an annular sheet 4 and cannot propagate back to jet region 3. The controller 19 switches the gas supply completely on or off in response to a thermostat sensitive to the water temperature. Cold feedwater enters tank 5 at the bottom through pipe 15 and hot water is drawn off from the top through pipe 16. Tank 5 is connected to casing 6 and supporting straps 12 by rods (11). Casing 6 may be insulated on the inside by corrugated asbestos sheet (7) overlain by thin aluminium sheet 8.
Patent GB-1436844-A (GB)
Title: Purification of n-phosphonomethylglycine
IPC: C07F9/38
Filed: 1975-06-27
Abstract: 1436844 Purifying N-phosphonomethyl glycine IMPERIAL CHEMICAL INDUSTRIES Ltd 27 June 1973 [21 July 1972] 41448/75 Divided out of 1436843 Heading C2P N-phosphonomethyl glycine is purified by recrystallizing it from water to give N-phosphonomethyl glycine in crystalline form having a melting point of 314 C. with decomposition. The invention also includes the said crystalline form as a novel product. The N-phosphonomethyl glycine which is submitted to the recrystallization may be obtained by reacting an N-substituted glycine of the formula where R<SP>1</SP> is H or an ester-forming group, Ar is aryl and R<SP>2</SP> and R<SP>3</SP> are H or aryl with formaldehyde and phosphorous acid in a non- oxidizing acidic aqueous medium to give a derivative of the formula and then reacting the latter with HBr or HI as disclosed in Specification 1,436,843.
Patent GB-873276-A (GB)
Title: Liquid-level indicator
Inventor: NORDH CARL
IPC: G01F23/16
Filed: 1959-12-08
Abstract: 873,276. Indicating liquid levels. SCANIAUNION A. B. Dec. 8, 1959, No. 41673/59. Class 123(1) A liquid level indicator for measuring the level of liquid in a container and of the type comprising an air pump 9, 12 for forcing air into a chamber 3 and through a pipe 16 leading to the bottom of the container to balance the pressure of liquid therein, the pressure in the chamber 3 being transferred through a passage 4, 5 to the mercury in the wider arm 6 of a U-gauge 6, 7 having a narrower gauge arm 7 is characterised in that the U-gauge 6, 7, the passage 4, 5, the air chamber 3 and the pump 9,12 are accommodated, as a complete unit, in a common transparent block 2. The latter is made, e.g. of plastics material, and is mounted on a back plate 1 between which and the block 2 is interposed a graduated scale disc 23 viewable through the block 2. The pump 9, 12 is provided with a bicycle type of check valve 13, 14, a filter 17 being accommodated in the wider part 5 of the passage 4, 5. The top of the gauge arm 7 communicates with a wider boring 8 containing a filter 18 and a spring-biased valve 20 which can be opened by depressing a pin 21. The passages 4, 5 and those of the U-gauge can be drilled from the outside of the block, the passages being subsequently plugged.
Patent GB-886760-A (GB)
Title: Improvements in and relating to apparatus for detecting and recording flaws, irregularities and other defects in materials capable of conducting an electric current or magnetic flux
IPC: G01N27/90
Filed: 1959-12-08
Abstract: 886,760. Detecting flaws in metal articles. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec. 8, 1959 [Dec. 8, 1958], No. 41688/59. Class 37. Apparatus for detecting flaws, and variations in wall thickness of an object capable of conducting an electric current or magnetic flux comprises a probe unit having a primary coil supplied with an alternating current, and a secondary coil assembly having a voltage induced dependent on the wall thickness between the coils, the magnitude varying as a negative exponential of the average thickness, and the phase linearly. The secondary coil assembly comprises two coils of different coil factors disposed adjacent one another, spaced apart axially or radially and connected in series opposition. Secondary coils S 1 , S 2 , Fig. 1, are spaced axially from coil D, and the variation both in magnitude and phase of the resultant secondary voltage relative to the primary as the probe moves past a variation 115 in the wall thickness is described with reference to Figs. 1a, 2a, 3a (not shown). Two secondary coils 23, 24, Fig. 5, are spaced radially from one another, the inner being sensitive to variations in average wall thickness only and the outer being sensitive to small pits or flaws. The coils are balanced by providing more turns on the inner coil 24, and are mounted in a holder 22 fixed to the support 20 by webs 21. An arrangement in which the coils, which may be of the same or different diameters, are positioned at least one diameter of the tubular member from the primary coil, is described with reference to Figs. 6, 7 (not shown). The primary coil 12, Fig. 9, is energized by a source 33, and the signals induced in coils 23, 24 are compared, in phase in a comparator 32, the circuit including amplifiers 31 and preamplifier 30. A recorder 34 provides a continuous record of the comparator output. A modification described with reference to Fig. 10 (not shown), includes a carrier oscillator in the probe whereby the induced signals are conveyed back along the primary coil power supply cable. In a further modification, Fig. 11 (not shown), the coupling between the coils is arranged to determine the frequency of an oscillator, the frequency being applied to a discriminator to indicate the tested parameter.
Patent GB-942151-A (GB)
Title: New trisazo dyestuffs and method for their preparation
Inventor: JIROU MARCEL
IPC: C09B31/22
Filed: 1960-12-05
Abstract: The invention comprises dyes of formula <FORM:0942151/C3/1> where R is a phenyl radicle which may be substituted, and their copper derivatives.  The dyes are made by diazotizing an appropriate aminoazo dye and coupling with the o -methyl-sulphonic derivative of s-anisidine in a neutral medium to yield a disazo dye, from which the o -methylsulphonic group is removed with hot b -naphthalene sulphonic acid, and the product diazotized and coupled with an N-substituted-2 - amino - 8 - naphthol - 6 - sulphonic acid, advantageously in the presence of sodium bicarbonate and pyridine.  Coppering is effected by treatment with an ammoniacal solution of a divalent copper salt. Copper complexes may be obtained with one or more atoms of copper per mole of dye.  The copper complexes are especially suitable for dyeing vegetable fibres. In examples, illustrative of the preparation of the dyes, and the use of their coppered products in dyeing vegetable fibres in greenish grey shades, R is phenyl and 4-carboxy- and 3-sulphonamido-phenyl.
Patent GB-1177973-A (GB)
Title: Improvements in and relating to Ball and Socket Joints
Inventor: FARRANT DAVID JOHN ROWLAND
IPC: B62D7/16
Filed: 1967-09-13
Abstract: 1,177,973. Sockets for ball-joints. AUTOMOTIVE PRODUCTS CO. Ltd. 10 Sept., 1968 [13 Sept., 1967], No. 41738/68. Heading E2F. A socket for a ball and socket joint comprises two parts 16 and 17, one part 16 comprising a cup having a cylindrical portion 19 and a substantially conical closed end portion 21 and the other part 17 comprising a tubular ring. Each of the said parts 16, 17 have an external flange 22, 24 and are held in assembled relation by fixing means acting between the flanges. Bearing members 26, 27 are mounted within parts 16 and 17 respectively, the bearing member 27 being retained in position by deforming inwardly, the outer end of the ring 23. A spring washer 28 of the circumferentially undulating or wavy type is placed against the outer end surface of the bearing member 27, a substantially rigid washer 29 of triangular cross-section is placed over the washer 28 and the end of the ring 23 is then peened over or otherwise deformed radially inwardly over the washer 29.
Patent GB-1430776-A (GB)
Title: Process for separating the actinide elements
IPC: G21F9/12
Filed: 1973-09-07
Abstract: 1430776 Separating actinide elements BAYER AG 7 Sept 1973 [9 Sept 1972 13 Oct 1972] 42089/73 Heading C1A The actinide elements are separated from one another and/or other metals by extraction from an aqueous solution with a synthetic resin containing an extractant or extractants. The resin may be a vinyl resin and may be prepared by copolymerization of a poly-vinyl and a mono-vinyl compound in the presence of the extractant. The extractant may be a trialkyl phosphate (preferred for use with solutions containing CL- or NO 3 -) trialkyl phosphinoxide, triaryl phosphinoxide, aliphatic primary, secondary or tertiary amine or quaternary ammonium salt (preferred for use with solutions containing SO 4 -) dialkyl phosphate, alkane dialkyl phosphonate or dialkane alkyl phosphinate. Solutions of UO 2 (NO 3 ) 2 , U(NO 3 ) 4 , UO 2 SO 4  and Th(NO 3 ) 4  are exemplified. Other metals except Au may be present. Elution may be with dilute mineral acids, NaHCO 3  or ammonium carbonate solutions or water, after washing with HNO 3  (or H 2 SO 4  in the case of amine containing resins).
Patent GB-950130-A (GB)
Title: Relaxation testing
Inventor: CAUBO MARCEL
IPC: G01N3/18
Filed: 1961-11-27
Abstract: 950,130. High temperatures testing. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. Nov. 27, 1961 [Nov.25, 1960], No. 42363/61. Heading G1S. To determine relaxation at high temperatures a test piece 2, held under tension between members 11, 12, and an adjacent untensioned test piece 5 are heated. Differential expansion between the two test pieces 2, 5 is detected by a contact 6 on the test piece 5 engaging contacts 21, 22 and is compensated for by reducing the tension in test piece 2.