baber/WOPTO huggingface dataset:
Patent GB-1035320-A (GB)
Title: Non-woven fabric
IPC: D04H1/64
Filed: 1962-12-05
Abstract: A synthetic latex, for use as a binder in a non-woven fabric (see Divisions D1-D2), is made by charging to a reaction vessel water, sodium alkyl-aryl-sulphonate as emulsifier, potassium persulphate as catalyst, ethylene-diamine-tetracetic acid, tert-dodecyl mercaptan in an amount of less than 0.3% by weight of the monomers as modifier, styrene, fumaric acid and butadiene. The vessel is then purged of air and sealed and the reaction conducted at 50 DEG  C. with agitation. Unreacted monomers and some of the water are removed by vacuum-stripping. The emulsion is neutralized with ammonia and stabilized by adding a potassium salt of a resin acid and polyalkyl polyphenol.  Reference has been directed by the Comptroller to Specification 935,420.ALSO:A non-woven fabric comprises a web of overlapping interacting fibres and a binder distributed through and unifying the web. This binder comprises a copolymer formed by emulsion polymerization, in the presence of a quantity of modifier, e.g. mercaptan, not exceeding 0.5% by weight, from a monomer mixture having not substantially less than 50% by weight of a conjugated diene.  The copolymer may be a tarpolymer of a conjugated diene (e.g. butadiene), and unsaturated carboxylic acid (e.g. acrylic, methacrylic, fumaric, maleic, itaconic or sorbia) and another monomer, which may be an alkenyl-aromatic compound (e.g. styrene), an aliphatic nitrile (e.g. acrylonitrile or a lower alkyl ester of an acrylic acid (e.g. methyl methacrylate).  The binder latex, as applied to the fibres may also contain a resin, e.g. a melamine-urea-, or phenolaldehyde resin.  The fibres may be of nylon, wool rayon or cotton, and may be formed into a web by air-deposition, carding or garnetting or on a Four-drinier machine.  The binder may be applied by immersion, spraying padding or spreading.  Reference has been directed by the Comptroller to Specification 935,420.
Patent GB-1329108-A (GB)
Title: Dispensing containers
IPC: B65D83/00
Filed: 1970-09-23
Abstract: 1329108 Piston extrusion apparatus SOC PRESS TUBE Sprl 28 Sept 1970 [2 Oct 1969] 46021/70 Heading F1R [Also in Division F2] A container 2 with a nozzle 3 closed by a cap 4, 5 has a piston 7 with three sealing rims 12, 13, 14 which is pushed into the container 2 with the aid of the inverted cap 4,5. The nozzle is detachable to provide a wide neck for filling purposes, and a slot 11 in the piston 7 prevents deformation of the part 9, 10 caused for example by filling the container with hot material from affecting the sealing rims 12, 13. The various parts of the container are made of plastics material.
Patent GB-1244492-A (GB)
Title: Apparatus for fixing fractures of the femur
Inventor: ORLICH JOSE LUIS
IPC: A61B17/74
Filed: 1968-09-30
Abstract: 1,244,492. Femoral fixation device. J. L. ORLICH. 30 Sept., 1968, No. 46300/68. Heading A5R. A femoral fixation device comprises a member 24 (50) Figures 5 and 8 not shown, for screwing to the shaft of the femur or for insertion into its intramedullary canal, said member having a channel member 26 (52) at one end for sliding engagement of a nail 12 which may be driven into the head of the femur, the cross sections of the nail and channel member being such that the nail cannot rotate in the channel member. A plate 24 for screwing to the shaft of the femur has a channel member 26 fixed to a supporting platform 32 formed at one end of the plate 24, so that it extends laterally outward beyond both sides of the plate, the latter being curved transversely to follow the contour of the femur shaft. The channel member 26 may have an open trefoil shaped cross section and receives a Smith- Petersen, Badgley or similar type of nail 12. The longitudinal axes of the channel member 26 and the plate 24 are at an obtuse angle. The plate 24 may be replaced by an elongated pin (50), one end of which is formed into a channel (52). The pin has an open trefoil-shaped cross-section defining a plurality of flanges (54, 56, 58) for preventing rotation about its longitudinal axis when it is inserted into the intramedullary canal of the femur. The pin has a slot (60) extending through one flange for receiving a screw (62, Fig. 8) fixed traversely to the femur shaft to prevent rotation of the pin in the intramedullary canal.
Patent GB-1031150-A (GB)
Title: A device for continuous centrifugal spinning
Inventor: PAVEK MILOSLAV
IPC: D01H4/40
Filed: 1964-11-19
Abstract: Apparatus for continuously spinning fibres comprises a rotating chamber 1, Fig. 1 not shown, into which fibres are fed through a guide 2, and an outlet tube 8 for the spun material; this tube is stationary and is funnel shaped at its end 11 within the chamber, the mouth of the funnel being coplanar with the widest part 13 of the chamber.  The guide 2 may be fast with the chamber and be mounted to rotate in bearings 4 while the upper part of the chamber provides a pulley for rotating the chamber.  The tube is mounted at 10 in the machine frame and is disposed within an open bottom 6 of the chamber. The medium in which the fibres are conveyed escapes at 7.  In other forms, (a) the body rotates in bearings carried by the outlet tube; a screen above the funnel prevents fibres falling directly into the funnel; and the inlet-guide is disposed in a wide aperture in the top of the chamber through which the conveying-medium escapes.  (b) Two inlet guides for the fibres are carried by the outlet tube and the chamber rotates in bearings by means of an upward extension.  (c) Passages supplied with compressed air and tangential to the internal passage in the outlet tube assist the production of twist.
Patent GB-1452122-A (GB)
Title: Electrical circuit arrangements for igniting gaseous fuels
IPC: F02P9/00
Filed: 1973-10-10
Abstract: 1452122 Ignition circuits BRITISH GAS CORP 1 Oct 1974 [10 Oct 1973] 47207/73 Heading F1B An electric spark ignition circuit arrangement for igniting combustible gaseous fuels includes a two electrode spark gap 8, means 24, 56, for generating a high voltage and means 3, 7 for generating a low voltage the components over which the high voltage and the low voltage outputs are developed being connected in series with the spark gap 8 and the arrangement being such that in use of the circuit arrangement following breakdown of the spark gap by the high voltage generator, the low voltage generator maintains an arc across the spark gap. The high voltage generating means is arranged to generate alternating current and the low voltage generating means is arranged to generate direct current or direct current combined with alternating current of frequency much lower than the frequency of the current generated by the high voltage generating means, the means for generating the high  voltage alternating current being adapted to permit the ready flow of direct current through its output impedance C, D and including a single step up transformer 6 whose secondary winding C, D provides the output impedance. The means for generating direct current or quasi direct current is adapted to permit the ready flow of alternating current through its output impedance by the use of frequency-selective components. In a modification (not shown), an additional spark gap is located in the lead connecting the spark gap 8 to the high voltage terminal C and a capacitor is connected in parallel with this additional gap. In another modification there are three ignition spark gaps and in a further modification there are four ignition spark gaps. The invention is described as applied to gas burners but is stated to be applicable to internal combustion engines. The device 4 may be an inert gas filled spark gap or a thyristor switch actuated by a neon-tube voltage sensitive circuit.
Patent GB-1104275-A (GB)
Title: Process for preparing cyclohexane
IPC: C07C5/10
Filed: 1965-11-10
Abstract: Cyclohexane is obtained from benzenecontaining organic sulphur compounds by passing gaseous benzene with hydrogen or a hydrogen-containing gas through a first hydrogenation zone containing a platinum group metal under conditions which hydrogenate only part of the benzene and convert sulphur compounds to hydrogen sulphide, removing hydrogen sulphide by absorption on a solid and passing the remaining reaction mixture through a second hyrogenation zone to complete the hydrogenation. Up to 90% of the benzene may be hydrogenated in the first zone which is preferably a water-cooled tubular reactor. Hydrogen sulphide is absorbed on zinc oxide, iron oxide or manganese oxide. The second reactor is preferably adiabatic and may use a sulphur-sensitive catalyst, e.g. nickel.  The same pressure is preferably used throughout.
Patent GB-1518039-A (GB)
Title: Poly(arylate-sulphones)
IPC: C08G63/688
Filed: 1976-11-17
Abstract: 1518039 'Poly(arylate-sulphones)' INST ELEMENTOORGANICHESKIKH SOEDINENY AKAD NAUK SSSR and VSES N I INST SINTETICHESKIKH SMOL 17 Nov 1976 [17 Nov 1975] 47949/76 Heading C3R A poly(arylate sulphone) comprising from 5 to 20 units of the formula:- wherein E represents F represents where R represents a 21-propylidene group, an alpha-methylbenzylidene group, X=O, -O-, or a single bond; G represents where R represents a 2-propylidene group, a hexafluoropropylidene group, an alpha-methylbenzylidene group, an alpha-phenylbenzylidene group, -O-, a 9-fluoroenylidene group or a group of the formula:- A represents an isophthaloyl and/or a terephthaloyl group or a biphenyl-4,41-dicarbonyl group; [n] and [m] are statistical values from 1 to 10 denoting the statistical distribution of the respective units over the macro-chain; x is a statistical value from 1 to 100; and y is an integer from 3 to 20, may be prepared by polycondensation in a chlorinated hydrocarbon solvent of isophthaloyl and/or terephthaloylchloride or biphenyl-4,41 dicarbonyl chloride and a mixture of a bisphenol of formula:- and an oligosulphone of formula:- wherein R and R<1> and y are as defined above, the mixture comprising 3-97% by weight of the oligosulphone. The polycondensation may be performed either in a chlorinated biphenyl solvent at 210-230 C. or in a chlorinated aliphatic hydrocarbon solvent, e.g. 1,2-dichloroethane or methylene chloride, in the presence of triethylamine such that the molar concentrations of triethylamine and of diacyl chloride are equal, and at a temperature between 15 and 25 C. Suitable bisphenols are phenolaphthalein; 4,41-dihydroxydiphenyl-2,2- propane; 4,4<1> dihydroxydiphenyl ether; 9,9- bis-(4-hydroxyphenyl) fluorene; 4,4<1> dihydroxydiphenyldiphenyl methane; 4,4<1> dihydroxydiphenyl-2,2-hexafluorpropane and 1,1-bis-(4- hydroxyphenyl)-1-phenyl ethane. The oligosulphones, whose Mol.Wt. may be from 1,650 to 9,000, may be prepared by reacting 4,4<1>- dichlorodiphenyl sulphone in a dimethylsulphoxide/benzene solution in the presence of sodiumhydroxide with for example 4,4<1>-dihydroxydiphenyl-2,2-propane; 4,4<1>-dihydroxydiphenyl ketone; 4,41-dihydroxydiphenyl ether and 4,41-dihydroxydiphenyl. Examples are given of the preparation of both the oligosulphones and the aryl sulphone polymer. The polymers have a high heat stability as shown by the temperature (200-280 C.) at which 10% of the mass of a polymer sample is lost when heated in an inert atmosphere, e.g. argon and have low melt viscosities, e.g. 10<3À8> to 10<5À0> poises at 330 C. and under a stress of 10<6> dynes/cm<2>, which facilitates their processing by injection moulding or extrusion using conventional equipment.
Patent GB-1151760-A (GB)
Title: Infrared-Transmitting Glass.
Inventor: DAVY JOHN RUPERT
IPC: C03C3/32
Filed: 1966-10-26
Abstract: 1,151,760. I.R. transmitting semi-conductor glass. BARR & STROUD Ltd. 30 Aug., 1967 [26 Oct., 1966], No. 48013/66. Heading C1M. [Also in Division C7] Semi-conductor glass is made by heating in H 2  under pressure a glass-forming mixture containing C. The glass contains As, Se, Ge, Te, or other semi-conducting material, and has improved I.R. transmittance. The H 2  may be formed by including a hydrogen-rich substance, e.g. paraffin wax, polyethylene, coronene, benzanthrone, hexaethylbenzene, ethyltrimethylsilane, or LiAlH 4 , in the mixture, evacuating the container, and sealing; the source of C may be this substance or, e.g. graphite. The pressure, e.g. 5 atmos. of the H 2  may be developed by introducing H 2  into a vessel partly filled with the mixture and then heating. The mixture may be, in atoms per cent: As, 30; Ge, 30; Se, 40. The quantity of C may be, e.g., 1% wt.
Patent GB-1435480-A (GB)
Title: Conversion of polyurethane foam
IPC: B29C59/00
Filed: 1974-11-06
Abstract: 1435480 Compressing polyurethane foam FORD MOTOR CO Ltd 6 Nov 1974 [6 Nov 1973] 48065/74 Heading C3R Polyurethane foam is converted into a non- cellular sheet material by contacting it with a 15 to 40% by weight aqueous solution of acetic acid and compressing the resultant wet foam at a temperature of 200‹ to 450‹ F. and at a pressure of at least 400 p.s.i.a. The foam is preferably shredded before compression. Preferably the foam is boiled in the aqueous acetic acid solution, compressed to drain off excessive absorbed solution and then converted into the non-cellular sheet material by hot rolling.
Patent GB-1152129-A (GB)
Title: Process for Producing alpha,beta-Olefinic Esters and Acids
IPC: C07C51/377
Filed: 1967-10-23
Abstract: 1,152,129. Production of α,#-olefinic esters and acids. MELLE-BEZONS. 23 Oct., 1967 [8 Dec., 1966], No. 48159/67. Heading C2C. α,#-Olefinic esters and/or the corresponding acid are produced directly from, a #-alkoxy alkanoic acid, using as a catalyst a cation exchange resin bearing sulphonic acid groups. The cation exchange resin may be partially saturated with cupric ions to decrease ether production from the alcohol and to avoid polymerization of the ester. Examples describe the use of a continuous process for producing methyl acrylate and ethyl crotonate using an apparatus comprising a cylindrical reactor and a distillation column.
Patent GB-1350392-A (GB)
Title: Extraction of metals from iron oxide materials
IPC: C22B23/00
Filed: 1970-10-09
Abstract: 1350392 Recovering Ni, Co and Cu from oxidic Fe materials H J ROORDA P E QUENEALI and S C TOWNSHEND 17 May 1971 [9 Oct 1970 19 Feb 1971] 48169/70 and 5054/71 Heading C1A An oxide material containing Fe and lesser amounts of Ni, Co, and/or Cu, is selectively reduced so as to convert to metal all the Ni, Co and Cu but only a minor amount of the Fe, and Cl 2  is passed into an aqueous immersion of the reduced material so as to take into solution the metallic Ni, Co, Cu and Fe. The starting material may be an ore, concentrate or slag, e.g. nickeliferous limonite or a Ni, Mg silicate, or the calcine obtained by roasting ores containing S or As, e.g. pyrrhotites or pyrites. The material may also contain precious metals or Mn which are taken into solution, and Cr or Al which are removed by physical means or alkaline roasting and leaching. Reduction may be effected at 500-950 C. using oil, coke or gases, e.g. CO 2  + H 2  + N 2 , as reducing agents. The material may be cooled in N 2  rapidly, or slowly to convert FeO into Fe and Fe 3 O 4 . The Fe may be selectively reoxidized by treatment with CO 2  or water vapour, e.g. by rapid cooling with water. Part of the Ni may then be extracted by carboxylation or ammonia leaching. Chlorination may be effected at 65 C. to the b.pt., using water, sea water NaCl solution, or the solution from a previous chlorination. It may be continued until oxidation of dissolved iron to Fe<SP>3+</SP> begins (pH 2-3) or until it is complete (pH 1-2). Fe<SP>2+</SP> can be oxidized with O 2  before or after separation of solids. The solution containing FeCl 3  can be used to pre-leach the reduced material, or the Fe<SP>3+</SP> can be precipitated with alkali, e.g. CaO or CaCO 3 . The chlorination may be carried out in at least 2 stages in countercurrent, at least one being at superatmospheric pressure. The Cl 2  may be mixed with air, O 2 , or inert gas. Recovery of Ni, Co, Cu: the solution may be treated with an organic extractant before or after separation of solids, the extract stripped to form aqueous chlorides, and the chlorides hydrolysed or oxdized to oxides or reduced to metals. Alternatively the metals may be precipitated as sulphides, hydroxides or carbonates. NiS may be purified to remove Fe, Co and Cu by treatment with fused chloride salt and then oxygen blown to Ni. Cl 2  may be recovered and reused.
Patent GB-1474613-A (GB)
Title: Pneumatic power tool with a sound attenuating exhaust air flow arrangement
IPC: B25B23/145
Filed: 1974-05-03
Abstract: 1474613 Silencing exhaust air THOR POWER TOOL CO 3 May 1974 [14 May 1973] 48209/76 Divided out of 1474611 Heading F1B [Also in Division B3] In a pneumatically operated power tool, see Division B3, the air exhausting from the motor 35 passes through a sound-attenuating tortuous path through the body of the tool before being exhausted to the atmosphere at a ring of discharge ports 53 in a gear case member 52. The path extends from the chambers of motor 35 through a series of circumferentially extending axially spaced slots (not shown) in cylinder block 36, through a clearance space 45 between block 36 and sleeve 37 to annular clearance 46, thence through a plurality of circumferentially spaced, axially extending grooves 49, Figs. 2 and 10, in a gear case member 50, through clearances between the gear 72 of a second stage of a planetary reduction gear train to annular chamber 51 which leads to ports 53.
Patent GB-1208964-A (GB)
Title: Rotary plate extruders
Inventor: NEUVILLE BERNARD
IPC: B29C48/47
Filed: 1968-10-11
Abstract: 1,208,964. Centripetal extruders. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 11 Oct., 1968 [12 Oct., 1967], No. 48372/68. Heading B5A. The centripetal or rotary plate extruder described in Specification 1,107,487 is modified by a widening of the shear gap, defined between cavity 6 in stator 2 and the adjacent face of rotor 3, around and adjacent the extrusion orifice. Such widening facilitates the production of extrudate having a relatively large crosssection, and is formed by a concave hollowing 15 in rotor 3, which, as shown, accommodates blades 17, and a hollowing in stator 2 which accommodates blades 16. The rotor and stator may be provided with grooves as described in Specification 1,201,697.
Patent GB-1132607-A (GB)
Title: Improvements in cervical collars
IPC: A61F5/055
Filed: 1965-11-15
Abstract: 1,132,607. Cervical collars. T. A. WILLIAM SON. 15 Nov., 1965 [17 Nov., 1964], No. 48379/65. Heading A5R. A cervical collar, of divided form at the back (i.e. at the portion thereof which is situated at the back of the neck when the collar is operatively in position on a patient), includes means for securing together the ends of the collar and a front portion which is slotted or cut away to leave a space between an upper part and a lower part of the collar, which parts are connected by differential screw means so that the distance between these parts may be adjusted to vary the frontal height of the collar. The collar comprises a panel of flexible sheet material, for example plastics material, in which a slot or cutaway is arranged medially of the length of the panel to extend from the lower edge of the panel, the lower portion of the slot or cutaway being bridged by a mid-member at each end of which is pivoted one end of a link or bar the other end of which is slidably pivoted to the panel adjacent the edge of the slot or cutaway; the screw means includes right hand and left hand screw-threaded means secured respectively to the mid-member and to the panel adjacent the top edge of the slot or cutaway. As illustrated in Figures 1 and 3, the collar comprises a panel 5 which has . tapering rounded ends 6 and a medial cutaway 7 extending to a top edge portion 8. The cutaway is bridged by a curved mid-member 9 each end of which is pivotally connected by a rivet 10 to one end of a curved link 11 the other end of which is pivotally connected in slidable manner to the panel by a rivet 12 which extends through a hole 13 elongated lengthwise of the panel. The mid-member and links have rounded ends and may be formed of plastics material. Secured to the mid-member is the forked end 16 of a first rod 15 which is formed with an axial right hand screw-threaded orifice adapted to engage a complementary screwthreaded stem of a knurled headed adjusting screw member 17 which is formed with an axial left hand screw-threaded orifice adapted to engage a complementary screw-threaded stem 18 of a second rod 19 having a forked end 20 which is secured to the top edge portion of the panel. Each rod may be made of nylon. Air ventilation holes 21 may be provided in each end portion of the panel the edges of which preferably are provided with padding 22 and the ends of which may be overlapped and secured together by fastening means 23 of known adhesive hook-and-eye construction.
Patent GB-1019041-A (GB)
Title: Boron and fluorine-containing wood protection agents
IPC: B27K3/36
Filed: 1962-12-21
Abstract: Organic ammonium fluoroborates with an atomic ratio of boron to fluorine of about 1 : 1 are prepared by mixing 1 mol. of the appropriate ammonium bifluoride with 2 mols. of boric acid with the addition of water and optionally with the addition of an amount of the appropriate amine or quaternary ammonium base in excess of the amount necessary for neutralization of the reaction mixture.  In place of the bifluoride, the monofluoride or a mixture of hydrogen fluoride and the appropriate amine or quaternary ammonium hydroxide may be used.ALSO:Ammonium fluoroborates with an atomic ratio of boron to fluorine of about 1: 1 are prepared by mixing 1 mol. of ammonium bifluoride with 2 mols. of boric acid with the addition of water and optionally with the addition of an amount of ammonia in excess of the amount necessary for neutralization of the reaction mixture.  In place of the ammonium bifluoride, ammonium fluoride, or mixtures of ammonia and hydrogen fluoride may be used.ALSO:Wood and wood-containing materials are protected against fire by treatment with aqueous solutions of ammonium fluoroborates with an atomic ratio of boron to fluorine of about 1:1.  Urea and ammonium sulphate may also be present.ALSO:Fungicidal and insecticidal compositions for use on wood and wood-containing materials comprise aqueous solutions of ammonium fluoroborates with an atomic ratio of boron to fluorine of about 1 : 1, prepared by mixing 1 mol of ammonium bifluoride or 1 mol of the bifluoride of an appropriate organic amine or quaternary ammonium base with 2 mols of boric acid with the addition of water and optionally with the addition of an amount of ammonia and/or the appropriate amine or quaternary ammonium compound in excess of the amount necessary for neutralization of the reaction mixture, or in place of the bifluoride, there may be used the monofluoride or mixtures of hydrogen fluoride with ammonia or the appropriate amine or quaternary ammonium base.  The compositions may optionally contain urea and/or fireproofing agents, e.g. ammonium sulphate.
Patent GB-1445588-A (GB)
Title: Fluid-flow control valve
IPC: F16K1/02
Filed: 1973-10-23
Abstract: 1445588 Valves ENGLISH ELECTRIC CO Ltd 4 Oct 1974 [23 Oct 1973] 49215/73 Heading F2V A valve has a closure member 26 guided by a spider 28 and moved relative a seat 15 by a rotary axially-captive nut 33, 36 acting on a threaded shaft 34 which acts on the valve stem 20. In order to prevent excess pressure being exerted on the closure member on closure of the valve a pair of conical spring washers 42 is placed between the nut and an axial thrust bearing 40, 39, 41. Excess movement of the closure member is prevented by a stop 43 adjustably fixed to the end of shaft 34 by nut 44 bearing on the end of the nut part 33. A spider 30 fixed to shaft 34 and co-operating with pillars 19 prevents the shaft from rotating. In a modification the spring washers are placed between a plate held by a shoulder on the valve stem and the spider 30.