baber/WOPTO huggingface dataset:
Patent GB-1213813-A (GB)
Title: Improvements relating to the detection of leaky seals
Inventor: DAWSON ROGER NEIL
IPC: G01M3/20
Filed: 1967-02-10
Abstract: 1,213,813. Testing a seal. PLESSEY CO. Ltd. Feb.9, 1968 [Feb. 10, 1967; Sept. 8, 1967], Nos. 6608/67 and 41150/67. Heading G1A. A seal is tested by applying a radio-active fluid under pressure to one side of it and monitoring for radio-activity arising from a leak on the other. A gas such as Krypton 85 may be used and it may be mixed with carbon dioxide, a geiger counter or a photo-multiplier and scintillation counter being used for monitoring. In one arrangement gas from a chamber is admitted into a cylinder having the seal in its end wall by withdrawal of a piston and returned to the chamber by the return of the piston after a predetermined time. In an alternative arrangement the gas mixture is held solid by liquid nitrogen and is allowed to sublimate or vaporize by withdrawal of the nitrogen and a chamber on the other side of the seal is monitored for radioactivity by pumping its contents past a geiger counter.
Patent GB-1028159-A (GB)
Title: Improvements in or relating to a process for the preparation of curable amorphous linear terpolymers from ethylenepropylene and fulvene derivatives obtained thereby
IPC: C08F10/00
Filed: 1964-10-09
Abstract: A terpolymer comprising units of ethylene, propylene and a cyclic olefine of the formula <FORM:1028159/C3/1> where R1 and R2 are hydrogen or an alkyl radical containing 1 to 12 carbon atoms, is made by contacting the monomers with a binary catalytic system comprising (a) a compound of a transition, metal of Group IV(a), or V(a) of the Mendeleef's Periodic Table; (b) an aluminium hydride which is soluble in organic solvents and has the formula HAlXY, wherein X and Y are hydrogen, halogen, or a secondary amine group of the formula NR1R2, where R1 and R2\t are alkyl, aryl, aralkyl or a cycloalkyl group or such groups which together with nitrogen atom of the amine form a heterocyclic ring.  The aluminium hydride may be complexed with a Lewis' base.  The polymerization is preferably effected in the presence of a hydrocarbon, or halogen-substituted hydrocarbon solvent.  The cyclic compound may be methyl-ethyl-fulvene, dimethyl-or diethyl-fulvene, or methyl-phenyl-or diphenyl fulvene. Component (a) of the catalyst may be VCl4.  Component (b) may be AlHCl2.O(C2H5)2, AlHCl2.N(CH5)3, AlH3.N(CH3)3, H2Al-N(CH3)2, AlH2Br.N(CH3)3, HBrAl-N(C6H5)2, H2Al-N-(CH2)5, or HBrAl-N(CH3)2. The catalyst may be preformed or formed "in situ."  The terpolymers are cured in the examples using conventional sulphur-containing vulcanization mixes.
Patent GB-1279357-A (GB)
Title: Fire retardant sheath and core conjugate fibres
Inventor: YANAGI MASANA
IPC: D01F8/04
Filed: 1970-08-28
Abstract: 1279357 Fireproofed conjugate filaments TORAY INDUSTRIES Inc 28 Aug 1970 41425/70 Heading B5B A conjugate sheath and core fibre comprises a core polymer which contains more than 5% by weight and less than 50% of a halogenated fire retardant compound and more than 5% by weight of a phosphorus-containing fire-retardant compound. The core component contains those compounds in such quantities that the halogen in the core component provided by the halogenated fire-retarding compound is between 3 and 50 times the weight of the phosphoruscontaining fire-retardant compound present in the core. The sheath polymer may also contain these fire-retarding compounds but, when it does, the percentage by weight of both of them is less than that obtaining in the core polymer. In addition, the maximum quantity of the halogenated fire-retardant is that which gives a halogen content of 10% by weight of the sheath polymer. The fibres are produced conventionally by melt-spinning the polymeric materials, the fireretardant compounds being present in the melt. The invention is particularly suitable for use with polyamides such as Nylon 6, Nylon 6,6 and polyesters such as homo- or copolymers of polyethylene terephthalate. Preferred phosphorus-containing fire-retardants are trialkyl and triaryl phosphates and phosphites and preferred halogenated compounds have the general formula C 6 H 4 X m Y n  where X is chlorine or bromine, Y a plurailty of specified alkyl, aryl and alkylaryl radicals and m and n integers such that m is from 1 to 6 and n from 0 to 5. The fibres retain the fire-retardant compounds under normal conditions of use, and undergo little yellowing or exposure to U.V. light.
Patent GB-1063198-A (GB)
Title: Phosphates of carboxyalkyl derivatives of n-dodecyl propylene-diamine
IPC: A01N37/44
Filed: 1965-09-30
Abstract: A detergent composition comprises a compound of the formula (n-C12H25-NHCH2CH2CH2NH-R-COOH) x(H3PO4)y wherein R represents -CH2- or -CH(CH3)-, x is 2 or 3 and y is 1 or 2, in admixture with a carrier compatible with human skin, e.g. aqueous ethanol or isopropanol.ALSO:Novel compounds of the formula (n-C12H25-NHCH2CH2CH2NH-R-COOH)x (H3PO4)y wherein R represents-CH2-or-CH(CH3)-, x is 2 or 3 and y is 1 or 2, are prepared by adding to an aqueous solution of a compound of the formula n-C12H25-NHCH2CH2CH2NH-R-COOH 1 to 2 moles of phosphoric acid per 3 moles of said compound and separation of the precipitate thus formed.ALSO:A disinfectant composition comprises a compound of the formula:- <FORM:1063198/A5-A6/1> wherein R represents -CH2- or -CH(CH3)-x is 2 or 3 and y is 1 or 2, in admixture with a carrier compatible with human skin, e.g. aqueous ethanol or isopropanol.
Patent GB-1412402-A (GB)
Title: Method of and apparatus for determining the impurity profile  in a semiconductor surface layer
IPC: G01R31/26
Filed: 1971-09-07
Abstract: 1412402 Measuring impurity concentration in semi-conductor material MULLARD Ltd 4 Dec 1972 [7 Sept 1971] 41760/71 Heading G1U In a method of determining the impurity concentration in the region immediately beneath the insulated gate electrode of an FET, firstly a constant source-drain current is maintained through the FET by an operational amplifier 1, Fig. 4, which maintains the voltage across a resistor R equal to a voltage V Ref  set on a potential divider, (the circles in the figure denote voltmeters), secondly a potential V Sub  is applied between the FET source and substrate, thirdly the substrate potential is varied in small steps and for each of its values the corresponding value of the gatesource potential V GS  is noted, and fourthly from the set of pairs of values of substrate and gate-  source potentials, the impurity concentrations at different depths are calculated using known formulae given in the Specification.
Patent GB-1117975-A (GB)
Title: Organosilicon compositions
IPC: C08L83/04
Filed: 1966-09-19
Abstract: A composition curable to an elastomer consists essentially of a methylpolysiloxane and from 0.5 to 10% by wt. of the siloxane, of a rosin which is sufficiently incompatible with the siloxane that a film is formed on the surface of the resulting elastomer. The methylsiloxanes can contain other siloxane units containing vinyl, phenyl, trifluoropropyl or chlorophenyl radicals, may contain the usual fillers and additives, and can be cured by any conventional method.  The rosins used are unmodified or modified rosins or rosin derivatives. In a typical Example (1) an elastomer-forming composition composed of a liquid OH-terminated dimethylpolysiloxane, fume silica, a liquid OH-terminated methylphenylpolysiloxane, methyltriacetoxysilane, titania and dibutyltridiacetate, was mixed in the absence of moisture with a toluene solution of a commercial rosin; when exposed to moisture, the mixture cured to a paintable elastomer.
Patent GB-1163224-A (GB)
Title: Electrical connectors for sheets of glass having electrically conductive strips on one surface thereof
IPC: H01R4/06
Filed: 1967-09-13
Abstract: 1,163,224. Electric connector. COMPAGNIE DE SAINT-GOBAIN. 13 Sept., 1967 [13 Sept., 1966], No. 41809/67. Heading H2E. An electrical connector, Fig. 1, comprises a strip 6 of metal provided with a current pick-up 8 and joined at two spaced-apart places to a collector strip 3 which is sealed to the surface of a glass sheet 1 carrying electrically conductive strips 2. The portion of the connector between the two joins is resilient. The connector is preferably made of copper or brass of about 0À5 mm. thickness. In general the connector is E-shaped and the two outer arms 5, 6 are soldered to the collector strip 3 the current being picked up by the middle arm 7 which is bent to provide resilience. To provide further resilience the portion of the connector between the joins may be bowed away from the collector strip (Fig. 3, not shown). The length of each of the two outer arms 5, 6 is slightly less than the width of the collector strip 3 so that there is a minimum distance A of preferably 0À5 mm. to 1 mm. between their ends and the edge of the strip. In another embodiment (Fig. 4, not shown) the outer arms of the E-shaped connector face the edge of the glass and the longer central arm is bent downwardly at the edge of the glass and has a short part running parallel to the edge of the sheet to form a pick-up arm. In a further embodiment, Fig. 5, the connector comprises a long strip 20, bowed outwardly and lying along the edge of the glass sheet, with two transverse arms 21, 22 at its ends bent over the edge of the glass sheet and soldered to the collector strip 3. A pick-up having two blades 23 and 24 pointing in opposite directions is provided to receive socket contacts supported on the end of connecting leads. The connector may be accommodated in a recess in the edge of the glass.
Patent GB-1321413-A (GB)
Title: Electromagnetic acoustic generators
IPC: G10K1/064
Filed: 1971-09-08
Abstract: 1321413 Electric bells SIEMENS AG 8 Sept 1971 [25 Sept 1970] 41811/71 Heading G5S The armature of a polarized electromagnetic acoustic generator is stiffened against bending in the direction of movement to prevent it acting as a microphone when the generator is used in a telephone set. The armature may be stiffened by means of longitudinal ribs or creases which extend over most of the length of the armature. Alternatively one, or both of the sides of the armature may be bent up at right angles to produce the required stiffness. Part of the sides may remain in the plane of the armature for ease of location. An armature 6, Fig. 8, of rectangular tubular crosssection material may also be used and the central region can be removed so as to accommodate the coils in order to keep magnetic stray flux losses at a minimum.
Patent GB-905662-A (GB)
Title: Improvement in saw blades
IPC: B23D61/04
Filed: 1958-12-30
Abstract: 905,662. Sawing. PFEFFER, J. W. Dec. 30, 1958 [Jan. 6, 1958], No. 42059/58. Class 145. A saw-blade 10 of uniform thickness with integral teeth 12 has preformed plates 30 of hard material, such as sintered carbide, brazed to one side of the tips of alternate teeth, the plates being tapered inwardly and rearwardly to a feather edge to give cutting clearance and set to the teeth. Because of the thinness of the plates, the teeth can be sharpened without the necessity of a diamond grinding-wheel; during sharpening, clearances 24 and 26 are given to the teeth. The plates need not extend fully to the rear edge 20 of the teeth tips provided they present sufficient surface for adequate anchoring. In an embodiment applied to a chain saw, a preformed plate is applied by bonding to the side surface of the chisel tooth and is arranged to project from such surface and to taper from its cutting-edge downwardly to this surface. Such a plate is shown in Fig. 6 on the side surface 34 of a tooth 38 and as having a lateral extension which is also bonded to the back surface of the tooth and tapers from the cutting- edge 42 to such surfaces.
Patent GB-861948-A (GB)
Title: Polymeric material
IPC: C08F279/02
Filed: 1959-12-11
Abstract: An elastomeric graft copolymer comprising 8 to 70% by weight of units derived from 2,3-dichlorobutadiene-1,3, the remaining units being derived preponderately from chloroprene, is obtained by polymerizing the dichlorobutadiene in the presence of an aqueous latex of polychloroprene or a copolymer of chloroprene with a lesser amount of styrene, methyl methacrylate, acrylonitrile, or 2,3-dichlorobutadiene-1,3, the resulting graft copolymer being less than 50% soluble in boiling benzene and having, when cured, a brittle point below - 30 DEG  C.  The polymerization may be catalysed by means of organic peroxidic compounds, ammonium persulphate, diazo compounds, potassium ferricyanide or high-energy ionizing radiation, e.g. gamma rays.  The resulting copolymers may be cured by means of conventional vulcanizing-agents.  In an example: (9) a polychloroprene-dichlorobutadiene graft copolymer is blended with a chloroprene-dichlorobutadiene copolyner and a fluid polychloroprene, and the blend is compounded with magnesium oxide, stearic acid, phenyl beta-naphthylamine, carbon black, process oil, zinc oxide and ethylene thiourea, extruded, and then cured by heating.  The Specification describes also the preparation of chloroprene polymer latices.  In examples: (1) chloroprene is polymerized in an aqueous medium, containing a sodium resinate emulsifier, a persulphate catalyst and an aliphatic mercaptan, the reaction being short-stopped at 70% conversion by means of dibenzothiazole and tert.-butyl catechol; (8) chloroprene is copolymerized with dichlorbutadiene in the presence of small quantities of sulphur and iodoform in an aqueous medium containing the sodium salt of disproportionated rosin and potassium persulphate, polymerization being terminated at 70% conversion by the addition of dibenzothiazole and tert.-butyl catechol.  Specification 566,206 is referred to.
Patent GB-982363-A (GB)
Title: Cold rolling lubricant
Filed: 1963-10-25
Abstract: A lubricant composition useful in the cold rolling of metals comprises a major proportion of a mineral lubricating oil having a viscosity of 100 to 600 SUS. at 100 DEG  F., 2-4 wt per cent of an emulsifier which is the reaction product of 1-9 moles of C2 or C3 alkylene oxide with 1 mole of an unsubstituted C12- 18 aliphatic alcohol, and 20-30 wt. per cent of a lard oil having sufficient free fatty acids to give the composition a neutralization number of 5 to 10.  A particularly preferred emulsifier is the reaction product of 6 moles of ethylene oxide and 1 mole of tridecyl alcohol, although others are mentioned.
Patent GB-1286481-A (GB)
Title: A spiral reader device
Inventor: NORDLUND STEN
IPC: G06V10/10
Filed: 1969-08-25
Abstract: 1286481 Bearings SAAB-SCANIA AB 25 Aug 1969 [28 Aug 1968] 42246/69 Heading F2A [Also in Divisions G1-G2] A spiral reader has a rotatable mirror 30 arranged to describe a cone and a periscope 22 mounted within the mirror support 21 for rotation therewith and movable relative to the support along the support axis, the periscope mounting comprising pairs of first 44<SP>II</SP> and second 44<SP>I</SP> guide members. The first guide members are yieldably mounted with respect to the support 21 whereas the second guide members are rigidly mounted. The guide member 44<SP>II</SP>, 44<SP>I</SP> of a respective pair bear in opposed directions on respective axially extending guide surfaces 43<SP>II</SP>, 43<SP>I</SP> on the periscope, the line of action of each guide member being offset from the axis. The guide members of a respective pair oppositely face one another, and their respective guide surfaces are parallel. The guide members 44<SP>II</SP>, 44<SP>I</SP> comprise rollers 45 mounted on shafts lying in a plane perpendicular to the rotation axis. The members 44<SP>II</SP> have an upwardly extending tongue 47<SP>II</SP> attached to support 21 by bolts 51 and tightened to the periscope by screws 52. This allows for adjustment of the bearing load of the member on its respective guide surface. The members 44<SP>I</SP> have adjusting screws 49 which have a conical guide surface 53 engaging along a portion of the cylindrical surface of an aperture 54 to adjust the position of the member toward or away from its respective surface.
Patent GB-1434208-A (GB)
Title: Force or tension measuring means
IPC: G01L5/108
Filed: 1973-09-10
Abstract: 1434208 Measuring strip tension electrically ALLMANNA SVENSKA ELEKTRISKA AB 10 Sept 1973 [11 Sept 1972] 42460/73 Heading G1N The distribution of tension across a strip 31 Fig. 2 in a rolling mill is determined by a roll 30 over which the strip passes, which is divided into a plurality of axially displaced sections 1-25 each provided with two, diametrically opposite, magnetostrictive pressure transducers. The average tension and the variation in tension across the strip is determined as described in Specification 1156705. The present invention modifies the average tension calculation in accordance with the number of transducers 7-19 which are fully covered by the strip 31 and the end transducers 6, 20 which are only partly covered by the strip. A device 32 determines the coverage of each transducer and controls switching arrangements 33, 34 accordingly. Fully covered transducers are connected through switches 33 , and the partly covered transducers are connected through switches 34 to be modified at 37 in accordance with the extent of the coverage, calculated at 35, before the signals are added at 38 to determine the average tension and the deviation from average, indicated at 41.
Patent GB-974790-A (GB)
Title: An improved crate or tray
Inventor: DAVIES ALAN JAMES
IPC: B65D1/38
Filed: 1962-11-10
Abstract: 974,790. Crates. BOUCHER-GILES & CO. Ltd. Oct. 31, 1963 [Nov. 10, 1962], No. 42558/62. Heading B8P. A metal crate with vertically spaced horizontal frames 10, 11, 12 has cross-members 13, 14 forming the base and inverted U-shaped members 18 with parallel limbs 22 and an apex 19 welded internally to the frames forming the side and end walls. The apices 19 of the two inner members 18 on the end walls may be outwardly displaced to permit insertion of a hand between the said two inner members. Corner posts 15 are bent inwardly at the top to engage in U-shaped corners of the uppermost frame 12 to facilitate stacking.
Patent GB-893703-A (GB)
Title: Improvements relating to driving arrangements for textile spinning and twisting spindles
IPC: D01H7/22
Filed: 1959-12-15
Abstract: 893,703. Driving and stopping textile spindles. BARMER MASCHINENFABRIK A.G. Dec. 15, 1959 [Dec. 20, 1958], No. 42591/59. Class 120(2) In a driving arrangement for textile spinning and twisting spindles 1, the spindles are driven by a common endless belt 4 which has a portion running in a straight path in contact with the wharves 3 of the spindles and between a plurality of pairs of guides, one of which may be the spindle wharve 3 and the other the roller 5, the guides being rotatable about fixed parallel axes, on opposite sides of the belt, and a belt contacting control roller 7, associated with each pair of guides is displaceable to disengage the belt from one of the spindle wharves. In Fig. 1, the control roller 7 is mounted on a plate 6 rotatable about the spindle axis while a brake 8 is mounted on a plate 9 rotatable about the pin 10; the brake 8 is normally held clear of the spindle wharve 3 by a tension spring 12 connected at its other end to the control roller carrier 6, but a can-shaped member 15 (which may be automatically operated), see Fig. 3 and Fig. 4, not shown, urges carriers 6 and 9 apart to simultaneously brake the wharve and disengage the belt therefrom when it is necessary, e.g. in the event of a thread breakage, to bring the spindle to rest. Guide roller 5 may be adjustable towards and away from the spindle 1.
Patent GB-1392719-A (GB)
Title: Gas cleaning means
IPC: B01D47/00
Filed: 1971-09-14
Abstract: 1392719 Gas cleaner UNITED KINGDOM ATOMIC ENERGY AUTHORITY 15 Nov 1972 [14 Sept 1971] 42740/71 Heading C1A [Also in Division B1] A gas cleaning apparatus comprises a column of loosely packed fibrous material 1 in a vessel 2 having a gas inlet 3, gas outlet 4, an opening 7 closed by plug 8 through which more fibrous material may be added, lines 11 for injection of liquor for removing corrosion products and drain 12 with air sparge 13. Scrub liquor may be introduced via inlet 10. The apparatus is used for cleaning gases containing acid and alkaline droplets, nitrous vapour and organic solvent, the fibrous material being mild steel wire which is corroded and the products removed by injection of nitric acid at 11 and the scrub liquor being NaOH solution.
Patent GB-1011190-A (GB)
Title: An improved silencer for an internal combustion engine
Inventor: HULL CHARLES HARTLEY
IPC: F01N1/02
Filed: 1963-11-07
Abstract: 1,011,190. Exhaust silencers. DAVID BROWN TRACTORS Ltd. Oct. 21, 1964 [Nov. 7, 1963], No. 43914/63. Heading F1B. A silencer comprises a pipe 12 passing through a casing 10 divided by partitions 13 into annular chambers 14 connected to the pipe through perforated zones 15 in each of which the total area of the perforations is at least equal to the pipe cross-section, the perforated zones being preceded by unperforated zones 16. A baffle may be provided across the pipe 12 in the most upstream perforated zone 15.
Patent GB-1287602-A (GB)
Title: 4,6-DICHLORO-Delta<4.6>-OESTRADIENES
IPC: C07J17/00
Filed: 1969-09-05
Abstract: 1287602 Progestational medicines SCHERING AG 5 Sept 1969 [13 Sept 1968] 44022/69 Heading A5B [Also in Division C2] Pharmaceutical preparations comprise racemic or optically active steroids having progesterone activity of the formula: (wherein R is H, acyl, alkyl or tetrahydropyranyl) and suitable carriers. They may be used in combination with an estrogen such as ethynyl-estradiol. Contraceptive use is among those referred to.
Patent GB-1089050-A (GB)
Title: Method in connection with dairying and plant for carrying out the method
IPC: A01J11/00
Filed: 1966-10-03
Abstract: A method of producing a variety of different milk products comprises the steps of dividing up whole milk, which may have been pasteurised, into components of various compositions, keeping each component in one or more storage tanks, and, when producing a particular product, taking predetermined quantities of the components from the storage tanks, mixing them, possibly together with further additives, and transferring them to treatment equipment suited to the particular product.  The components may be pasteurised or sterilised either before being introduced into the storage tanks or after withdrawing therefrom.
Patent GB-1498098-A (GB)
Title: Disposal of waste flammable gases
IPC: F23G7/06
Filed: 1976-10-26
Abstract: 1498098 Mixing gases and liquid BRITISH CAST IRON RESEARCH ASSOCIATION 26 Oct 1976 [29 Oct 1975] 44555/75 Heading B1C A waste flammable gas is disposed of by dispersing it as bubbles in a non-flammable liquid, and dispersing air as bubbles in the liquid in a quantity at least sufficient to provide complete combustion; the gases will form mixed bubbles which are ignited on breaking surface. The waste gas may be introduced beneath a dispersing element such as a perforated plate, filter element or bed of gravel, and the air by a sparger, see Fig. 1 (not shown). In the apparatus of Fig. 3 the flammable gas is acetylene generated by the action of water on waste calcium carbide 13, which is placed in a basket 12 and lowered into a tank 22 together with a cowl 14, dispersion element 15 and air injection 16. The latter comprises a ring manifold 17 having a plurality of inwardly directed radial pipes 18 having downwardly facing orifices along their length; a foam forms in the tube 20 which is ignited by the pilot burner 21 and burns inside the windshield cowl 20. A tray 24 for debris may be provided.