baber/WOPTO huggingface dataset:
Patent GB-571526-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/34
Filed: 1944-02-23
Abstract: 571,526. Windscreen cleaners. HOUDAILLE HYDRAULIC SUSPENSION CO.,'Ltd., and DEFRIES, C. Feb. 23, 1944, No. 3407. [Class 138 (i)] A windscreen cleaner of the kind in which the wiping-pad 18 is carried by an arm 16 oscillated by means of a tubular shaft 26, is pressed against the glass 12 by adjustable pressing means controllable by a slidable rod 48, Fig. 1,-or rotatable rod 48, Fig. 4, which passes through the gear-box of the oscillating mechanism and is operable by a knob 50 arranged inside the cockpit of an airplane, or near the driver's seat of a car to effect the adjustment. In either case, the arm 16 is pivoted to a housing 22 which oscillates with the shaft 26, and in Fig. 1 the rod 48 acts upon a lever 40 which controls the compression of a spring 38 adapted to act upon a nut 36 of an eye bolt 32 pivoted at 34 to one end of the arm 16. The pressure of the pad 18 on the glass is thus dependent upon the pressure of the spring 38 which is controlled by the position of rod 48. In Fig. 4, the housing 22 is secured to the shaft 53 of a worm-wheel 54 which is engaged by a worm 64 mounted on the rod 48 and mounted in a casing 56. Rotation of the worm 64 adjusts the angular position of the housing 22, and this controls the pressure of the pad on the glass 12. Other non- reversible gearing may replace the worm gearing.
Patent GB-1000957-A (GB)
Title: Process for reducing the concentration of mercury in hydrogen contaminated therewith
IPC: B01J27/04
Filed: 1964-01-27
Abstract: Hydrogen contaminated with mercury is purified by contact at a temperature below the boiling point of Hg with particulate Al2O3 having metallic Ag supported thereon.  The hydrogen, which may be obtained from electrolysis at a mercury cathode, may contain 20,000 -35,000 micrograms Hg per cubic litre and may contain water vapour. Process may take place at 0-50 DEG  C. and the space velocity of the gas may be 0.0016 to 16 per second. Metallic Ag may constitute 1-15 wt. per cent of combined Ag and Al2O3.  A continuous process may be arranged using two reactors in parallel. When the H2 from the first reactor is found to contain more than 25 m g.  Hg per c.l., the gas flow is transferred to the second reactor.  The first reactor is reactivated by heating 1-6 hrs. at 200-600 DEG  C. whilst passing a stream of dry nitrogen countercurrent to the direction of hydrogen flow.  The absorbent may be reactivated up to 7 times.
Patent GB-113842-A (GB)
Title: Improvements in Cinematograph Apparatus.
Inventor: DEHN FRANK BERNHARD
IPC: G03B1/56
Filed: 1917-03-08
Abstract: 113,842. Dehn, F. B., (Bell & Howell Co.). March 8, 1917. Kinematograph apparatus for projecting, taking, or printing is provided with means for exerting direct pneumatic pressure upon the two sides of the picture film during its passage through the gate whereby the film is held in suspension away from the walls of the gate and, in the event of the film being stopped, the continuous supply of air prevents its ignition. The invention is illustrated in vertical section in Fig. 2, in horizontal section in Fig. 3, and in plan in Fig. 11. Fig. 2 shows the lamp house 65 and shuttle-chamber 22, upon which a plate 23 is vertically adjustable bv a cam 27 so that an opening 25 therein may be brought into register with the picture on the film. A member 34 with an integral boss 35 is pivoted vertically to the frame so that a tube 36 which slides in the boss may be brought into line with the light opening 21 or may be swung back therefrom as shown in dotted lines in Fig. 11. One wall 38 of the film gate is secured to a member 37 depending from the inner end of the tube 36. The film may be viewed through a ruby-glass disk 40, and its passage through the gate is facilitated by rollers 95, 96, 97. The wall 38 is moved away from the film during its intermittent movement by means of a rod 49, Fig. 3, connected to a vertical lever 48, the top only of which is shown, oscillated by a cam disk. This movement is transferred through pin 50 and pivoted lever 47 to tube 36, the wall 38 being automatically returned to its contacting position by a spring-pressed plunger 43<a> which engages a projection 43 on the tube 36. The member 34 is locked in position by a latch preferably comprising a hook-shaped pawl 59, Fig. 11, provided with an arm 61 which engages a guide-pin 41, Figs. 2 and 11, so that, on releasing the pawl, the pin 41 and tube 36 may be moved. The air pressure is initially led into the airtight lamp house 65, Fig. 2, to cool the same; from this, a portion passes through passage 67 in boss 35 and tube 36, to passages 68, 69 and recesses 70, 71 in the face of the movable wall 38 of the film gate, through holes 74, 77 to grooves 72, 75 in the opposite face of this wall by which the air is brought in contact with one face of the film. The other wall 80 of the film gate and its backing- plate 88 are provided with vertical slots through which the shuttle teeth operate the film. Air passes from the lamp house through ports which lead to a shallow chamber 84 between plates 80 and 88, through ports 86, 87 to recess 91, 93 on the film side of the plate 80.
Patent GB-166608-A (GB)
Title: Improvements in and relating to steam generators of the water tube type
IPC: F22B21/14
Filed: 1920-02-04
Abstract: 166,608. Baillie, R. Feb. 4, 1920. Drawings to Specification. Cleaning internally, rotary appliances for.-The lower water drums of a boiler of the Yarrow or like type are exposed directly to the furnace and are fitted with internal rotary scrapers. The scrapers may consist of helical blades as described in Specification 166,925.
Patent GB-1177003-A (GB)
Title: Method of improving Operational Efficiency of White-Water-Recovery Systems
IPC: D21F1/70
Filed: 1967-01-24
Abstract: 1,177,003. Papermaking. NALCO CHEMICAL CO. 24 Jan., 1967 [9 March, 1966], No. 3538/67. Heading D2A. [Also in Division C1] Finely-divided solids are separated from paper-mill white water by adding a cationic polymer, introducing air bubbles into the white water to form a froth and adding an anionic polymer to the froth. Preferably air is dissolved in the white water under pressure, the cationic polymer added, the pressure released so that the air comes out of solution as bubbles and the anionic polymer added just below the surface. The cationic polymer may be: a condensation product of a polyamine and an epihalohydrin; a condensation product of an alkylene dihalide and an amine, such as ammonia, ethylene diamine, diethylene triamine, tetraethylene pentamine or triethylene pentamine; a cationic melamine-aldehyde or melamine-urea-aldehyde resin; a polyimine, polyvinylpyridine or polyvinylpyrrolidone; a polymer of a vinyl-benzylquaternary-ammonium salt or a copolymer of this with acrylamide or methacrylamide; a homopolymer of aminoethyl acrylate hydrochloride, amino-ethyl methacrylate hydrochloride, a substituted ammonium-alkyl acrylate or methacrylate or a copolymer of this with acrylamide, methacrylamide, acrylonitrile, a lower alkyl ester of acrylic or methacrylic acid or vinyl methyl ether; or a cationic starch or gum. The anionic polymer may be a copolymer of a carboxylic acid or its anhydride, e.g. maleic anhydride, acrylic acid, maleic acid, fumaric acid, itaconic acid, aconitic acid, or citraconic acid, with an amide or alkali-metal, alkaline-earth-metal or ammonium salt of one of these acids, their half-esters, the salts of their half-esters or their substituted amides, styrene, alphamethylstyrene, vinyltoluene, chlorostyrene, vinyl acetate, vinyl chloride, vinyl formate, a vinyl alkyl ether, an alkyl acrylate, an alkyl methacrylate, ethylene, propylene or isobutylene; the sodium salt of hydrolysed polyacrylonitrile, sodium carboxymethylcellulose, sodium salt of a starch ester, sodium salt of sulphonated polystyrene, a phosphorylated starch or an anionic polysaccharide; an after-sulphonated polymer of a vinyl-aromatic hydrocarbon; a copolymer of sodium acrylate and acrylamide; a polymer of acrylic acid, methacrylic acid, sulphoethyl acrylate or carboxyethyl acrylate, a salt thereof, or a copolymer thereof with acrylamide, methacrylamide, acrylonitrile, methacrylonitrile, an alkyl acrylate or a vinyl alkyl ether.
Patent GB-1350374-A (GB)
Title: Purification of isocyanates by reducing the hydrolyzable chlorine and acid content
IPC: C08G18/76
Filed: 1973-01-24
Abstract: 1350374 Purification of isocyanates OLIN CORP 24 Jan 1973 [12 May 1972] 3684/73 Heading C2C The hydrolysable chlorine and acidic content of an organic isocyanate is reduced by heating the isocyanate to above 100 C. but below its decomposition temperature in the presence of formic acid, formanilide, an N,N<SP>1</SP>-diformyltoluene diamine, N-methyl formanilide, an adduct of toluene diisocyanate and formic acid, or mixture thereof.
Patent GB-249280-A (GB)
Title: Wireless coilholders
IPC: H01F27/00
Filed: 1925-02-10
Abstract: 249,280. McClelland, T. Feb. 10, 1925. Couplings. - A plug connector for wireless inductance coils comprises a block of insulating material having a recess c in which is located a contact spring d, the arrangement permitting an inductance coil to be mounted on the pin b and swivelled into the socket spring d. In another construction, Fig. 2, the block is cut through and a spring g is provided, the swivelling connection being possible from either side. The block can be provided with another pin b to form an adapter. Reference has been directed by the Comptroller to Specification 248,850.
Patent GB-492095-A (GB)
Title: Improvements in or relating to insulin
IPC: A61K38/28
Filed: 1937-02-09
Abstract: Insulin, stated to be pure and to have a slower and more prolonged hypoglycemic effect than ordinary insulin, is obtained by adding to a solution of insulin a buffer, such as a salt of a strong base and a weak acid, in an amount of 1/5 to 1/40 molar, adding a water soluble salt of cadmium, nickel, calcium or cobalt with hydrochloric, acetic or tartaric acid, cooling the solution and recovering the precipitate.  After the addition of the cadmium, nickel, calcium or cobalt salt an organic solvent, e.g. acetone to the amount of 12 per cent, is added, the solution heated to between 20 and 65 DEG  C. cooled and separated from any flocculent precipitate, the pH is adjusted to between 5,6 and 6,4 and the solution is cooled to near freezing point, when a crystalline precipitate is formed which is the insulin product desired.  In the instance of nickel chloride as the precipitating agent one part thereof to 10,000 of the mixture may be added.  For use the insulin prepared as above is introduced into a buffer solution, e.g. of sodium phosphate, and brought to a pH approximately that of the body tissue.
Patent GB-544970-A (GB)
Title: Improvements in and relating to wearing apparel
IPC: A41D1/06
Filed: 1941-03-20
Abstract: 544,970. Trousers &c. DONNER, I. March 20, 1941, No. 3827. [Class 141] The turn-up 21 of a trouser leg 20 which, as is usual, is held in place by a binding tape 26 secured by a double line of stitching 27, is covered by an additional turn-up 22, the edges of which are covered by a binding 23 secured in place, together with the edges of the turn-up 22, by a seam 24 which can readily be ripped out. A loop 28 held in place by easily rupturable stitching 29 facilitates ripping out the binding 23 when desired. The invention is also applicable to collars and cuffs and other garments.
Patent GB-901118-A (GB)
Title: Improvements in or relating to rigid cellular materials based on polyvinyl chloride
IPC: C08J9/00
Filed: 1961-02-02
Abstract: Rigid cellular materials exhibiting closed cells and based on polyvinyl chloride are prepared by homogeneously mixing polyvinyl chloride, a heat-decomposable blowing agent, an organic polyisocyanate and a bituminous substance; heating the mixture in a mould to decompose the blowing agent, to expand and gel the polyvinyl chloride and to melt the bituminous substance; cooling the expanded material under pressure and removing it from the mould; and placing the expanded material in contact with hot water or water vapour to effect further expansion.  In an example, expanded material is prepared from a paste comprising polyvinyl chloride, asphalt, toluene diisocyanate and di-iso-azobutyronitrile.ALSO:Rigid cellular materials exhibiting closed cells and based on polyvinyl chloride are prepared by homogeneously mixing polyvinyl chloride, a heat-decomposable blowing agent, an organic polyisocyanate and a bituminous substance; heating the mixture under pressure in a mould to decompose the blowing agent, to expand and gel the polyvinyl chloride and to melt the bituminous substance; cooling the expanded material under pressure and removing it from the mould; and placing the expanded material in contact with hot water or water vapour to effect further expansion.  In an example, expanded material is prepared from a paste comprising polyvinyl chloride, asphalt, toluene diisocyanate and di-isoazobutyronitrile.
Patent GB-396310-A (GB)
Title: Improvements in and relating to thermal air and vapour cabinets
IPC: A61H33/06
Filed: 1933-02-09
Abstract: 396,310. Thermal air and vapour baths. HATTON, J. and JONES, A. E., Grand Pump Room, and BATH, MAYOR, ALDERMEN, & CITIZENS OF THE CITY OF, Guildhall, both in Bath. Feb. 9, 1933, No. 3978. [Class 26.] A cabinet for a thermal air- or vapour-bath, comprises a completely closable structure having a regulatable aperture in the top through which may project the head or upper portion of the patient's body, and an atomizer for atomizing mineral water or other liquid and forcing the vapour into the cabinet, the vapour being regulatable as to temperature or humidity, or both. The cabinet has inner and outer walls with insulating packing between them, doors 2, 2, and a hinged and counterweighted lid 3 ; the latter has a shutter 23 and an aperture closable by movable parallel bars 4, 4, which may be locked in position around the neck of the patient by levers 5, 5. Each atomizer consists of a chamber 17 supplied with water from a pipe 16 having a control valve 15 and an air nozzle 13 supplied from a pipe 12 having a control valve 16 ; the chambers may also be supplied with medicaments from containers 19. The vapour is blown into pipes 14 having electrical or other regulatable heating- means, thence to shafts 9 having trapped waste pipes 9b and hoods 9a from which the vapour passes to the cabinet.by way of an insulated chamber 8 and a grating 7. A small fan driven by a turbine 28 agitates the air in the region of wet- and dry-bulb thermometers 25, 26 and a small drainage aperture 17a in each chamber 17 ensures the supply of dry air when the liquid supply is cut off. Normally the patient sits upon a counterweighted chair 6 which is secured in the desired position in vertical guides 6c by means of a stop 6d and which is provided with a hinged foot-support 6b and a detachable leg-support 6a. An apertured extension chamber 20 is provided for treatment of the forearms, and apertures 21, 21 for the treatment of the hands and feet. A Leiter coil may be attached to a valve 24.
Patent GB-648466-A (GB)
Title: Filter packs and their manufacture
IPC: B31C3/00
Filed: 1948-02-11
Abstract: A hollow edge-filtration filter-unit comprising helically-wound slightly-rough ribbon material with shallow spaces between the convolutions is characterized by the facts that the ribbon material is porous and impregnated with an agent rendering it stable against the action of the fluid to be filtered, that the convolutions are adhered by the agent, and that the convolutions are disposed obliquely to the axis of the unit.  The ribbon material may be crepe paper with the rugosities extending cross-wise.  The obliquity is preferably about 45 degrees.  A plurality of ribbons of the material may be wound together in parallel relation to one another.  The stabilizing and adhering reagent may be a polymerizable phenolic resin, which is polymerized by passing the unit through an oven immediately after the winding process during manufacture (see Group XXVIII).
Patent GB-745058-A (GB)
Title: Improvements in the polymerisation of monomeric vinyl compounds to unitary uniform grains
IPC: C08F2/18
Filed: 1953-02-13
Abstract: Granular polymers of one or more monomers of the formula CH2=X1X2, in which X1 is hydrogen or chlorine and X2 may be chlorine, cyano, or acyl, are made by a two-stage process which consists in first polymerizing the monomeric material in a homogeneous phase comprising a water-soluble organic solvent with, if desired, water in an amount such that no demixing of the homogeneous phase takes place, until a conversion of at the most 25 per cent has taken place, and then completing the polymerization after the addition of such an amount of water as is necessary for the production of a three-phase system. The polymerization may be effected continuously or batchwise. Monomers mentioned are vinyl and vinylidene chlorides.  Organic solvents mentioned are vinyl and vinylidene chlorides.  Organic solvents mentioned are methanol, ethanol, ethylene glycol, ethylene glycol monoalkyl ethers, polyglycols, acetone, and acetic acid.  The catalyst may be an acyl peroxide or azo-di-isobutyrodinitrile.  The polymers are suitable for moulding.
Patent GB-1043871-A (GB)
Title: Method of preparing polyfluoroethylene yarn
IPC: D01F6/12
Filed: 1964-01-30
Abstract: 1,043,871. Heat treating polyfluoroethyleneregenerated cellulose fibres. TOYO RAYON KABUSHIKI KAISHA. Jan. 30, 1964 [Feb. 7, 1963; May 8, 1963]. No. 4074/64. Heading B5B." ' ..<SP>:</SP> In the known process of treating yarns consisting of a mixture of regenerated cellulose and fluoroethylene polymer by heating them to a temperature sufficiently high to cause the fluoro particles in the yarn to coalesce (the yarn having been produced by the known process of wet spinning a mixture of viscose and an aqueous emulsion of the fluoro polymer into an aqueous acid and salt coagulating bath) the yarn before heat treatment is first washed with water until the percentages of acid and salt remaining in the yarn (calculated on the dry yarn) are reduced to below 0.05% and 5% respectively, and then contacted with a dilute aqueous solution of an alkali in such a manner that the yarn takes up 0.001 to 2% by weight of the alkali (calculated on the dry yarn). The ammonium chloride number (Hottenroth-Zahl) of the viscose is preferably below 13, e.g. 2 to 6, and the mixture of viscose and polymer emulsion wet spun to produce the yarn may contain 60 to 96% of the fluoro polymer (based on polymer plus cellulose). The fluoro-ethylene polymer may be polytetrafluoro-ethylene. The heat treatment may be conducted at a temperature of about 300‹ to 400‹ C. and in any ease is sufficient to carbonize or burn off the cellulose component of the yarn. The alkali used in the treatment of the yarn may be a hydroxide, carbonate, bicarbonate or sulphide of an alkali metal, e.g. caustic soda or. caustic potash. The polymer emulsion may contain 20 to 75% of polytetrafluoroethylene and 3 to 10% (based on the polymer) of a non-ionic or anionic dispersing agent. In an example, a mixture of 250 grams of viscose containing 8% cellulose and having an H 2  value of 4.0 with 300 grams of a 60% polytetrafluoroethylene emulsion and 9 grams of glycerine is wet spun into an aqueous coagulating bath containing 10% of sulphuric acid and 22% of sodium sulphate and the filaments thus formed passed through five baths of water which reduced the sodium sulphate and sulphuric acid contents of the filaments to 0À061 and 0À01% respectively. The filaments are then passed through a 0À05% aqueous solution of caustic soda, squeezed to 135% water content and passed in a sinuous path over four heating, rolls maintained at 330‹ to 360‹ C. The thus-treated filaments could be satisfactorily drawn at a draw ratio of 8: 1 in a bath of a molten salt maintained at 340‹ C.
Patent GB-1446282-A (GB)
Title: Diviation correction in digital indicating electronic watches
IPC: G04G5/00
Filed: 1974-01-29
Abstract: 1446282 Electronic watches BERNARD GOLAY SA 29 Jan 1974 [1 Feb 1973] 04078/74 Heading G3T An electronic watch with digital time indication, is provided with a push-button switch 13, Fig. 2, for correction of minor error in time displayed and may be operated in combination with or apart from the normal time setting arrangements (not described) by resetting to zero the seconds counter 4 only and at least part of a frequency divider 3. As shown Fig. 3, the seconds counter 4 comprises a counter a having an output pulse every ten secs and counter sections b, c producing an output pulse every minute. The section b produces a pulse every thirty seconds while c is a binary counter producing the minute pulse each time its state changes from "1" to "0". If the reset switch is closed when binary counter c is in its "0" state, (i.e. when the seconds indication is between 00 and 29 secs) then the counter remains in that state and does not send a pulse to the mins counter. If the reset switch is closed when counter c is in its "1" state (i.e. when the secs indication is between 30 and 59 secs) then it is changed to its "0" state and sends a pulse to the mins counter which advances one unit. The watch may be synchronized with a radio broadcast time signal preferably at frequent intervals. For instance if the watch is slow and reads 12 hours 29 mins 45 secs at 12.30, then at the occurrance of a time signal the push switch is closed and the seconds will change to 00 and the minutes will increase to 30. Similarly if the watch is fast by under 30 secs, e.g. reads 12h.30m 29 secs at 12.30, closure of the reset switch will change the seconds indication to 00 and the mins indication will remain unchanged.
Patent GB-578562-A (GB)
Title: Improvements in or relating to rods of bonded fibrous material
Filed: 1944-03-06
Abstract: 578,562. Agglutinated fibrous materials. BAKELITE, Ltd., KNEWSTUBB, N. W., and' ROBB; C: A. March' 6, 1944, No. 4147. [Class 140] Rods are manufactured by impregnating or coating longitudinally arranged fibres or fibrous. elements with a thermosetting resinous bonding agent, applying positive twist and tension to a bundle of the treated fibres and heating to effect hardening of the resin and bonding of the fibres. The fibres may be organic or inorganic, natural or synthetic, and may be in the form of filaments, slivers, rovings, yarns, threads, cables, strings, ropes or string-like elements prepared by twisting, felted or woven fibrous materials; for convenience in handling they may be enclosed in a sheath or tube, e.g., of woven material, which thus becomes an integral part of the finished rod. The bonding agent may consist of condensation products of.'formaldehyde with a phenol; a urea or an aminotriazine, surplus agent may be eliminated by passing the impregnated fibres through a die or through squeeze rolls. Fibrous material in sheet or tape form and treated with bonding, agent may be wound round the twisted fibrous elements before, during or-after the heating process so that the fibrous elements form a core in the resultant rod. Twist and tension is applied simultaneously. Long lengths of rod may be produced. In an example, 2,500 ends of cotton yam are dipped into an aqueous phenol formaldehyde condensated product, squeezed to remove excess, dried for half an hour at 110‹C., suspended,in an oven and subjected to a tension of 561bs, by means of a weight attached, to the bottom of the tank; 60‹ of twist per inch of length is applied by rotating the weight and heating is maintained at 120‹C, for two hours, to harden the binder. The rod produced may be used in cured or semi-cured form or may be used as a core for production of larger rods. Specifications 222,586, [Class 89 (i)] 433,010, 470,331 and 548,794, [Group IV], are referred to.