baber/WOPTO huggingface dataset:
Patent GB-1068784-A (GB)
Title: Process for preparing solutions of alpha-olefin copolymers
IPC: C08F8/20
Filed: 1965-03-26
Abstract: Solutions of copolymers containing alpha-olefine units and alpha, beta-ethylenically unsaturated carboxylic acid halide units having 3 to 8 carbon atoms, the latter being present to the extent of at least 0.1 mol. per cent based on the total mols. of units polymerized, are prepared by contacting the polymer with an organic solvent in the presence of an acidic compound which is an acid having a dissociation constant of at least 1 x 10-5 or a compound which is hydrolysed in the presence of moisture to form such an acid.  The acidic compound can be incorporated in the copolymer or its precursor (viz. alpha-olefine/unsaturated carboxylic acid copolymer which is subsequently halogenated) or can be added to the solvent used. Suitable acidic compounds include hydrochloric acid, HCl gas, PCl5, POCl3, PCl3, acetyl chloride, propionyl chloride, octanoyl chloride, SOCl2, p-toluenesulphonyl chloride, benzenesulphonyl chloride, methane sulphonic acid, ethanesulphonic acid, p-toluenesulphonic acid, H3PO4, HF, HBr, H2SO3, H3PO3, HClO4 and mixtures thereof. Suitable solvents include xylene, benzene, toluene, cyclohexane, hexane, chlorobenzene, tetrachloroethylene, carbon tetrachloride, trichloroethylene and mixtures thereof. The copolymers used can be obtained by copolymerizing an alpha-olefine with an appropriate ethylenically unsaturated carboxylic acid and halogenating the carboxyl groups of the polymer so obtained completely or partially; a suitable halogenation procedure is described in Specification 1,048,914. Olefines specified are ethylene, propylene, butene-1, pentene-1, hexene-1, heptene-1, 3-methyl-butene-1, 3-methylpentene-1 and 4-methylpentene-1; acid monomers specified are acrylic, methacrylic, ethacrylic, itaconic, maleic and fumaric acids, methyl hydrogen maleate, methyl hydrogen fumarate, ethyl hydrogen fumarate and maleic anhydride.  The acid component may be graft polymerized on to a preformed olefine polymer. The copolymers may also contain another component, e.g. ethyl acrylate, methyl methacrylate, acrylonitrile, vinyl acetate, vinyl alcohol, styrene, vinyl methyl ether, vinyl chloride or fluoride, vinylidene chloride or chlorotrifluoroethylene.  The examples illustrate the preparation of solutions of ethylene-methacrylic acid copolymers whose carboxyl groups have been completely or partially chlorinated.
Patent GB-596247-A (GB)
Title: Improvements in or relating to electric storage cells and batteries
IPC: H01M10/14
Filed: 1945-05-24
Abstract: 596,247. Casting. POLLOCK, S. A. May 24, 1945, No. 12974. [Class 83 (i)] [Also in Group XXXVI] Moulds for grids.-An electric battery storage unit is made by casting a number of parallel plates and their bus-bar in one piece. The elements may be formed by the Plante or the Faure process. The casting may be made as described in Specification 593,715. The grids may be filled with paste and reinforced with a fabric of fibrous, acid-resisting material, as described in Specification 593,719, [Group XXXVI]. A Plante-formed positive may be used with a negative formed by the Faure process.
Patent GB-125618-A (GB)
Title: Improvements in or relating to Submarine Mines.
IPC: A61K36/9066
Filed: 1916-09-13
Abstract: 125,618. Vickers, Ltd., Elia, G. E., and North, T. K. Sept. 13, 1916. Mines, marine. - Relates to submarine mines provided with extensible arms which, on impact with a ship, rotate relatively to the mine, causing the mine to be released and to rise by its buoyancy while the tension in the mooring-cable first cocks and then releases a spring striker, firing the mine. According to the invention, a " driving " member 1, Fig. 1, carrying the arm 10 is mounted in a bearing 2 m the bottom of the mine 4, and is attached at one end to the rod 6 of a spring striker 54, and at the other end to the @oring- cable by means of a shackle 8. The driving- member 1 is locked to a ring 22 against rotation by keys 23, and against longitudinal motion by radial bolts 11, Fig. 3, which are confined within the ring 22 by rollers 16 in the surrounding casing. The ring 22 is itself mounted without longitudinal freedom in the surrounding casing, and is locked against rotation by pins 26 in engagement with radial slots 25 in yokes 21, which are pressed by springs 28 against rollers 18: the yokes are indented to fit the surfaces of the rollers, forming a spring grip which yields only to a strong force. The casing surrounding these parts comprises an upper part 32 brazed to the mine and a cup-shaped lower part 33 secured to the upper part by bolts 35, a flanged steel ring 36<1> and a leather washer 36 being interposed to make the casing watertight. A disk 45 is secured to the top of the lower part by screws and is formed with a boss 47 which screws into the striker casing 50. The joint between the driving-member 1 and its bearing 2 on the lower part of the casing is made water-tight by an extensible corrugated lead tube 38, which is clamped to the bearing 2 and to a boss 37 on the driving-member by wires 39, Fig. 6, threaded through a block 41 and tightened by nuts 44. When the driving-member 1 is rotated relatively to the mine on impact of the mine with a ship, the bolts 11 are released from the rollers 16 and are wedged aside by the driving-member 1 as the mine rises by its buoyancy. The rising mine then compresses the striker spring until radial bolts 57 are wedged into a recess 58, releasing the striker 54 from the rod 6 and thus firing the mine. The arm 10 is passed transversely through the driving- member 1 and is then locked thereto by a pin 60. The outer part of the arm 10 is extended by a spring 65 when released from a gripping-device 62, 63, Fig. 5, by the dissolution of a plug 67. A screw 66 is screwed in the jaw 63 over the plug 67 to ensure that the jaw 63 shall grip the arm 10 tightly against the cradle 62 irrespective of the size of the plug 67.
Patent GB-936511-A (GB)
Title: Improvements in or relating to communication cables
IPC: H01B11/00
Filed: 1961-04-11
Abstract: 936,511. Cables. SIEMENS & HALSKE A.G. April 11, 1961 [April 11, 1960], No. 13013/61. Class 36. [Also in Group XXXIX] A communication cable with transposed pairs comprises a conductive screen and is connected so as to simulate a coaxial circuit. A cable comprises eight insulated wires 1-8 laid around a central core of expanded polythene 108 and transposed preferably in the way disclosed in Specification 878,062, the wires being surrounded by magnetic insulation 170, e.g. of ferrite powder in polythene, a conductive screen 171, and an outer sheath 172 of synthetic material. The cable may be further served and armoured as required. The balanced pairs are connected to form two phantom and one super-phantom circuits (shown schematically at 173) and the final centre-tap is employed as the inner conductor of a coaxial circuit of which the screen 171 forms the outer conductor. In other embodiments the central core may contain a further, central, wire and may be magnetic, and the outer insulating layer may be expanded polythene. By suitable employment of phantom circuits the simulated coaxial circuit may be obtained by using as the coaxial conductors the central conductor and the superphantom centre-tap; the central conductor and the screen; or the central conductor and centre-tap in parallel, and the screen. In the latter case the central conductor may be arranged to have a potential between that of the centre-tap and the screen (Fig. 6, not shown), to minimize loss. The two-wire circuits may be used for carrier frequencies up to 250 kc/s. and the coaxial circuit up to 300 kc/s. Where the central conductor and the centre-tap are employed as the coaxial conductor, these may be transposed at intervals. Multi-core cables may be formed from a plurality of individual screened cores described above and enclosed in a synthetic or metallic sheath. The space between cores may be filled with pairs or quads, with insulating cords, or with an insulating mass.
Patent GB-331962-A (GB)
Title: Improvements in and relating to carburettors
IPC: F02M1/00
Filed: 1929-04-27
Abstract: 331,962. Dobbie, E. D. April 27, 1929. Spray carburettors.-A floatactuated needle valve 4 is retained on its seating by a spring-loaded piston 3 when the engine is at rest, the piston being held clear during running by the engine suction. A non- return valve 8 is located in the suction conduit 2 whilst an anticushioning vent 9 is provided in the cylinder wall on the side of the piston remote from the valve.
Patent GB-238030-A (GB)
Title: Improvements in means for carrying and paying out electric cable for collectors engaging an overhead conductor
IPC: B60M1/02
Filed: 1924-05-30
Abstract: 238,030. Railless, Ltd., Short, A. E., Short, H. O., and Munro, E. M. May 30,1924. Controlling arrangements for collectors. - In means for conveying electric current from an overhead conductor to a rail-less vehicle, a cable 1, Fig. 1, is wound on a spring drum 2 and the inner ends 1<a> - - 1<c> of the conductors are attached to slip rings 11, 12, 13 from one of which current is conveyed through controlling-means to a motor and thence through another slip ring to the return lead, and an auxiliary switch on the vehicle controls a parallel circuit fed through the - third slip ring for operating points on the overhead track in advance of the collector.
Patent GB-756156-A (GB)
Title: Improvements in and relating to systems for separating liquids having different specific gravities
Inventor: BARTLEY RONALD NEWBY
IPC: F16K31/02
Filed: 1953-05-13
Abstract: 756,156. Gravity -- separation apparatus. WHITE'S MARINE ENGINEERING CO., Ltd. May 13, 1954 [May 13, 1953], No. 13341/53. Class 46. Valves controlling the draw-off of two liquids of different specific gravities occupying a single container and having a common interface are actuated under the direction of electronic means influenced by the dielectric properties of the liquids. When oil is .being discharged past a valve j the interface between the oil and water below it is rising. When this interface passes an electrode e connected to a thermionic valve oscillator the capacity between the electrode and the tank b changes on account of the different permittivity of the water. This change of capacity is applied to the control grid of the valve and the resulting change in anode current operates, through a low-current relay, reversing contactors which control a reversing torque motor f, whereby valve j is closed and water valve k is opened. The interface thereupon falls whilst water is discharged. When the interface passes an electrode q a thermionic valve oscillator connected to it operates a relay which serves to reverse the valves and k once more. The motor may be replaced by thrustor cylinders controlled by magnetically-operated fluid-control valves.
Patent GB-1466922-A (GB)
Title: Photographic processing
IPC: G03C7/42
Filed: 1974-03-26
Abstract: 1466922 Photographic bleach and bleach-fix compositions EASTMAN KODAK CO 26 March 1974 [26 March 1973] 13362/74 Heading G2C Photographic materials containing silver images, e.g. exposed and developed silver halide colour materials, are bleached to remove the silver image by treatment with an aqueous bleach solution containing a ferric aminocarboxylic acid bleaching agent in the presence of a bleach accelerator which is a monothioglycerol cystamine 2, 2'-dithio bis [ethylamine], or a thiol of the Formula:- in which R<SP>1</SP> and R<SP>2</SP> are each hydrogen, methyl or ethyl and n is an integer of from 1 to 3, or a salt thereof. The bleach-accelerator may be present in the bleach solution, which may also contain a fixer, or the material may be treated with a prebath containing the bleach accelerator before treatment with the bleach solution. Specified accelerators are 1-monothioglycerol, 2-monothioglycerol, cystamine dihydrochloride, 2-amino ethanethiol hydrochloride, 3-aminopropanethiol, dimethylaminoethane thiol, dimethylaminoaminopropane thiol hydrochloride, N-methyl-N- ethylaminoethane thiol and diethylaminoethane thiol hydrochloride. The accelerator may also be provided in the form of a precursor which splits to yield a thiol when dissolved in the processing bath.
Patent GB-1461208-A (GB)
Title: Apparatus comprising a synchronous motor
IPC: H02K7/118
Filed: 1975-04-02
Abstract: 1461208 Electric motors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 April 1975 [5 April 1974] 13428/75 Heading H2A To ensure starting of a single phase synchronous motor, the motor is provided with one or more pressure members resiliently urged into contact with a cam disc mounted on the motor rotor. This construction ensures that, on de-energization of the motor, the rotor comes to rest in a position favourable for restarting. The motor comprises a diametrically magnetized permanent magnet rotor 2 mounted between the free ends of the legs 3, 4 of a U-shaped stator core 5. A cam disc 10, as shown, has two cams 25, 26 which interact with pressure rollers 11, 12 mounted in slides 27, 28 engaged by springs 13, 14. In a modification, Fig. 4 (not shown) the rollers 11, 12 are lifted out of contact with the cam disc 10, during operation of the motor, by a spring-loaded manually operated lever system which also controls the supply of current to the stator coils 6, 7.
Patent GB-1354232-A (GB)
Title: Electrical contact insertion or extraction tool
IPC: H01R43/22
Filed: 1972-03-23
Abstract: 1354232 Extracting and inserting electrical contacts; gripping tools ITT INDUSTRIES Inc 23 March 1972 [31 March 1971] 13589/72 Headings B4C and B4W A tool 22 for extracting an electrical contact pin 162 from a bore 154 of an insulator 152 in which the pin is retained by spring fingers 158 of a clip 156, comprises two members 82, 84 secured together at their rear ends 86, 88, the forward ends of the members being operable, against the resilience of the members themselves or a spring placed therebetween, bypressure applied to pads 136 to permit semicylindrical portions 34 to envelope a conductor 174 when the pressure is released. The conductor passes between the portions 34 and over knurled portions 122, 124 on the members 82, 84 respectively. Sliding of the tool along the conductor and into the bore causes the fingers to be moved out of engagement with flange 168 of the pin. The pin can then be extracted. Each portion 34 is a part of a nose piece 38 secured as by welding to a carrier 26, and each carrier, which is secured to arm 112, or 114 by a screw 116, comprises a tongue 58 and a recess 64. When the forward ends of the members are closed the tongue of one carrier will engage in the recess of the other carrier. A resilient cap 142 secured to the members is provided for protecting the portions 34 when the tool is not in use. When it is desired to use the tool to insert the pin, the carriers 26 will be replaced by other carriers each provided with a nose piece having a semi-cylindrical portion of lesser external diameter than the flange 168.
Patent GB-580701-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H5/06
Filed: 1944-07-18
Abstract: 580,701. Snap-action switches. SHARP, W. July 18, 1944, No. 13687. [Class 38 (v)] When movement of a cam (not shown) allows an operating lever 2 to rise, the movable contact 13, which is carried by a link 5 pivoted to the lever 2 at 6, slides from the full to the dotted line position before leaving the fixed contact 14. The contact 13 is fixed to a block 7 having trunnions 8 whereby it pivots about the link 5. The block 7 carries a pin 10 surrounded by a spring urging it to the left. As the lever 2 rises, pivoting about an axis 3, the link 5 is bodily moved to the left causing the sliding of the contacts. Then the axis 6 passes the line of the spring 12 which then acts to open the contacts with a snap action.
Patent GB-495421-A (GB)
Title: Improvements in and relating to the surface treatment of metallic sheets
IPC: B44C1/24
Filed: 1937-05-14
Abstract: 495,421. Embossing sheet surfaces. BRITISH ALUMINIUM CO., Ltd., and DANIELS, J. F. May 14, 1937, No. 13727. [Class 83 (iv)] Rolling.-Metal sheet, e.g. aluminium or aluminium alloy, copper, brass, lead, zinc, steel, is given a desired surface finish and /or pattern by rolling it between plain rolls along with a superposed pattern-forming sheet, e.g. of perforated, woven, mesh like, or otherwise patterned, e.g. sandblasters or prepared metallic or textile material and then stripping the pattern sheet from the metal sheet. A pattern sheet may be sandwiched between two other sheets or vice versa, or a pack of sheets with intermediate pattern sheets may be similarly passed through the rolls and then separated. The pattern or surface so formed may be flattened or modified by passing the sheet alone through the rolls afterwards. The surface of the patterned sheet may be further treated, e.g. by etching anodic oxidation with or without dyeing or colouring.
Patent GB-528481-A (GB)
Title: Improvements in or relating to biasing circuits for electron discharge devices
IPC: H04B1/16
Filed: 1939-05-08
Abstract: 528,481. Contacting-solid d resistances; temperature variable resistances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 8, 1939, No. 13738. Convention date, May 7, 1938. [Class 37] [Also in Group XL] The biassing potentials for the amplifiers of a telegraph or telephone transmitter are derived from a potentiometer comprising a series of elements made of the material known under the Registered Trade Mark "Thyrite," the resistance of which varies inversely with the current. The output stage 1, 2 of the telegraph transmitter of Fig. 3 has a common cathode biassing resistance 7 of " Thyrite," and excitation is supplied to the grids from stage 8 which is in turn excited from a stage 28 and keyed in any suitable manner over lead 100. During " spacing " intervals a condition of equilibrium is reached with a low value of anode current, and during " marking " intervals the D.C. anode current rises but due to the characteristic of the " Thyrite the bias voltage does not greatly increase. Additional negative bias may be provided during marking " by the grid leaks 9. 10. Since " Thyrite " is substantially instantaneous in its resistance response to variations in applied voltage, it may also be employed to protect the tubes from excessive dissipation in a telephone transmitter.
Patent GB-952692-A (GB)
Title: Improvements in or relating to furnaces for melting glass
IPC: C03B5/04
Filed: 1962-04-10
Abstract: 952,692. Glass furnaces. G. NOVAKY. April 10, 1962 [April 10, 1961; Oct. 23, 1961], No. 13767/62. Heading F4B. In a glass melting furnace having an elongated refractory tank 2 containing the molten batch, fuel, which may be solid, liquid or gaseous, and combustion air are introduced into the furnace through separate ports 3, 4 on both sides of the furnace, the ports on either side being disposed in mutually offset relationship. Exhaust ports 5, 6, 7 in the crown of the furnace lead the hot waste gases to a flue 9 which may be connected to one or more heat-exchangers or radiation recuperators for the purpose of preheating the combustion air.
Patent GB-399254-A (GB)
Title: Improvements relating to the shives of barrels
IPC: B65D55/00
Filed: 1932-05-13
Abstract: 399,254. Barrel shives. PRESLAND, W. S., 1, Rushey Green, Catford, London. May 13, 1932, No. 13783. [Class 21.] A barrel shive consists of a conical block of wood a, bored through its centre b, and divided into two preferably equal portions, hinged together at c, thumb and finger indentations d being provided to facilitate opening.
Patent GB-405850-A (GB)
Title: Improvements in or relating to process and apparatus for applying edge sealing material to laminated glass
IPC: B32B17/10
Filed: 1933-05-12
Abstract: 405,850. Compound glass. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Duplate Corporation ; 2200, Grant Building, Pittsburg, U.S.A.). May 12, 1933, No. 13895. [Class 140.] The grooved edge of a plate 12 of laminated glass is sealed by contacting it with a rotating disc 2 of felt, wood, rubber, leather, &c., the periphery of which takes up sealing material from a mass 11 held in the recess between the disc 2 and a spring-pressed, flanged roller 6.
Patent GB-1172727-A (GB)
Title: Production of Organic Coatings on Electrically Non-Conducting Substrates by Electrochemical Deposition.
IPC: C09D131/00
Filed: 1967-03-28
Abstract: 1,172,727. Coating compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 28 March, 1967 [29 March, 1966], No. 13962/67. Heading C3P. [Also in Division C7] Aqueous compositions used for electrodeposition coating are prepared by bulk polymerizing (1) butanediol - 1 - acrylate - 4 - acetoacetate, dimethylaminoethyl acrylate and tbutyl acrylate or (2) ethanediol-1-methacrylate - 2 - cyanoacetate, N - vinylimidazole and t-butyl acrylate in the presence of t-dodecyl mercaptan and azodiisobutyronitrile, neutralizing with glacial acetic acid (to effect salt formation of the amino or imidazole groups), and dissolving the product in water. Coatings obtained with these solutions are cured by treating with aqueous formaldehyde (rendered weakly alkaline with triethylamine) and heating at 60‹ C.
Patent GB-225252-A (GB)
Title: Improvements in and relating to the manufacture of yeast
IPC: C12N1/18
Filed: 1923-05-28
Abstract: 225,252. Jensen, C. A., (Fleischmann Co.). May 28, 1923. Yeast.-To a yeast-nutrient solution containing sugar material and suitable inorganic salts are added vitamine-bearing substances such as rice polish, milk, green vegetable matter, extract of yeast &c. Solutions are described in which the vitamine-bearing substances are aqueous extracts of rice polish and milk solids respectively. The rice polish can be added to other cereals and saccharified in the usual way and the resulting product added to the solution. Spent liquors from yeast or other fermentation can also be used, after removing the alcohol.
Patent GB-1027569-A (GB)
Title: 11-oxo-18ª‡- and -18ª‰-a-neo-oleana-dien-30-oic acid derivatives
Inventor: ASKAM VERNON
IPC: C07C62/38
Filed: 1964-04-06
Abstract: The invention comprises compounds of the formula <FORM:1027569/C2/1> and <FORM:1027569/C2/2> in which X is a hydrogen atom or an alkyl radical, e.g. methyl 11-oxo-18b -A-neo-oleana-3, 12-diene-30-oate, and their preparation by reacting a glycyrrhetinic acid compound of the formula <FORM:1027569/C2/3> with phorphorus pentachloride in an inert organic solvent and treating the reaction mixture with an excess of aqueous alkali-metal carbonate or bicarbonate, or by reacting the glycyrrhetinic compound with a sulphonic acid chloride R.SO2Cl, wherein R is an alkyl, aryl or alkyl-substituted aryl radical and refluxing the resulting 3-R-sulphonate with an alkaline material such as calcium carbonate or a salt of a weak acid and a strong base such as sodium acetate, in an inert organic solvent.
Patent GB-484363-A (GB)
Title: Antiptosic belt
IPC: A61F5/03
Filed: 1937-05-20
Abstract: 484,363. Trusses; electric treatment apparatus. MADEUF, P. May 20, 1937, No. 14058. Convention date, May 22, 1936. [Class 81 (ii)] Antiptosic belts comprise ventral plates 5, which may carry pads, springs 10 being secured rigidly or slidably to the lower parts of the plates, to produce an upward thrust, and passing through holes 8 and stitched guides 9 in a belt of tubular elastic fabric or of two layers of elastic fabric stitched together, of strips of non-elastic fabric joined by elastic connections, or of elastic fabric with a lining. A single spring, which must be detachably secured to one of the plates 5, may replace the two springs 10. The plates 5 are carried separately in a sheath of skin or fabric stitched to the belt or may be connected by a rigid or flexible connection allowing limited separation between them. The pads on the ventral plates may constitute electrodes for use in electric treatment.