baber/WOPTO huggingface dataset:
Patent GB-211378-A (GB)
Title: Improvements in or relating to chimney and ventilating shafts and shaft tops
IPC: F23L17/02
Filed: 1923-04-26
Abstract: 211,378. Parkes, W. H. April 26, 1923.. Ventilating - shafts. -A ventilating-shaft 1', Fig. 5, is provided with a number of draught - inducing units 2 each comprising an outwardlyprojecting tube 3 extending at rightangles to the axis of the shaft and having a conical deflector 4 arranged over its outer end. The deflector 4 may be supported by rods secured to the shaft or, as shown, by short arms 6<1> formed integral with the tube 3. Fig. 6 shows a modification in which an airsupply shaft 1<1> is fitted with the units 2 which project inwardly into the shaft to induce downdraught. In this case, the upper end of the shaft is provided with an inverted conical baffle 4<11> which is carried by and spaced from the lower end of a short tubular member 3<1> secured to the shaft by an annular flange 3<11>.
Patent GB-1451824-A (GB)
Title: Manufacture of semifinished products of fibre-reinforced thermo plastics material
IPC: B29C63/00
Filed: 1974-03-14
Abstract: 1451824 Laminates BASF AG 14 March 1974 [15 March 1973] 11377/74 Heading B5N [Also in Division D1] A method for the continuous manufacture of a semi-finished product of fibre-reinforced thermoplastic material wherein one or a plurality of textile web structures preheated to from 150 to 300 C. is/are brought into contact with a melt of a thermosplastic material and the components are then pressed together in a compression zone and simultaneously cooled or allowed to cool under pressure. The thermoplastic material which may be supplied from an extruder may be a polyolefine, e.g. polyethylene or polypropylene, a styrene polymer, e.g. polystyrene, a copolymer of styrene with up to 50% by weight of acrylonitrile, α-methylstyrene, maleic anhydride or methyl methacrylate or a butadiene rubber-modified styrene polymer, a chlorine-containing polymer, e.g. polyvinyl chloride, polyvinylidene chloride or a chlorinated polyolefine, a polyamide, polymethylmethacrylate, a polyester of terephthalic acid and a saturated diol, a polycarbonate or a mixture thereof and may contain fillers, pigments, dyes, antistatic agents, stabilizers, flameproofers or lubricants. The textile web structures may be woven or non-woven, e.g. felts or mats and may be made of glass, carbon, asbestos or plastics fibres preferably coated with a plastics binder.
Patent GB-1223756-A (GB)
Title: Improvements in ferroelectric whiskers
IPC: C03B37/10
Filed: 1968-03-08
Abstract: 1,223,756. Devitrified glass fibres; ferroelectric whiskers. GENERAL ELECTRIC CO. 8 March, 1968 [18 April, 1967], No. 11503/68. Headings C1A and C1M. A fibre, comprising a glass matrix with longitudinally oriented ferroelectric domains therein, is made by melting a glass, forming a fibre, rapidly cooling, heating to and maintaining at devitrification temperature until the desired degree of devitrification occurs, and cooling. "Rapidly cooling" means cooling to below the annealing temperature with the aid of, e.g. an air stream. The glass may be formed from (i) BaCO 3 /TiO 2 /Al 2 O 3 /SiO 2 , yielding BaAl 2  Si 2 O 8  matrix and BaTiO 4  domain; (ii) BaCO 3 / TiO 2 /B 2 O 3  or HBO 2  yielding BaO/B 2 O 3  matrix and BaTiO 4  domains; (iii) alkali metal carbonate/SiO 2 /Nb 2 O 5 , yielding alkali metal silicate matrix and alkali metal niobate domains; thus Na 2 CO 3 +K 2 CO 3  yield NaKO.3SiO 2  matrix and K 0À5 Na 0À5 NbO 3  domains. The fibres may be formed by drawing or extrusion, or by directing a jet of compressed air or steam on an unsupported stream of molten glass. The glass matrix may be dissolved to yield pure ferroelectric material whiskers, e.g. of diameter up to 0.001 inch and length 10-100 x diameter; these may be embedded in the aligned state in another matrix material.
Patent GB-887353-A (GB)
Title: Improvements in the production of hot-rolled thin sheets and films from polymers of vinyl chloride
Inventor: SIEBEL HANS PETER
IPC: B29C43/24
Filed: 1960-04-01
Abstract: Vinyl chloride polymer films and thin sheets are produced by hot-rolling a mixture of (1) 100 parts by weight of an unplasticized homopolymer of vinyl chloride, or an unplasticized copolymer of at least 70% by weight of vinyl chloride and up to 30% by weight of one or more other polymerizable monomeric compounds, and (2) 0,5-10 parts by weight of polyethylene oxide with a D.P. between 50 and 400, polypropylene oxide with a D.P. between 10 and 100, or a copolymer of ethylene oxide and propylene oxide with a D.P. between 10 and 400, at rolling temperatures between 120 DEG  and 200 DEG C.  The films produced may be heated for a short time at a temperature between 200 DEG  and 300 DEG C. without using pressure and subsequently stretched at below 200 DEG C.  The copolymers may contain a copolymerized acrylic acid ester, a vinyl ester or an ester of an alpha, beta-unsaturated dicarboxylic acid, such as maleic acid.  The polymers may contain as a stabilizer a small proportion of dibutyl-tin-bis-cyclohexyl thioglyoxalate, diphenyl-thiourea or monophenylurea.  The p  polyolefine oxide functions as a lubricant and the films produced are clear, smooth, and have a low water imbibition when stored in water.
Patent GB-1536946-A (GB)
Title: Microfilm jacket
IPC: G03B21/11
Filed: 1975-10-31
Abstract: 1536946 Microfilm jacket P A KIEJZIK 31 Oct 1975 [8 Sept 1975] 11581/76 Heading B8K  A microfilm jacket comprises upper and lower sheets welded together at their margins to define an elongate sheath, and an arcuate slot, e.g. 80, forming an insertion opening in the upper sheet, and which is convex towards the direction of insertion of microfilm and accessible by bending the part of the jacket on the convex side of the slot away from the slot. The jacket may comprise a plurality of parallel channels each having a plurality of insertion openings 80, 80<SP>1</SP>, 80<SP>11</SP>. One channel may be wider than the rest.
Patent GB-635012-A (GB)
Title: Improvements in and relating to false teeth
IPC: A61C13/00
Filed: 1947-04-30
Abstract: 635,012. Artificial teeth. KLEINER, W. April 30, 1947, No. 11600. Convention date, April 30, 1946. [Class 81 (ii)] An artificial tooth 1, preferably of synthetic resin and suitable for bridge work, is provided with a U-shaped pin 2 of non- corrosive metal the curved part of which is embedded in the tooth and is bent towards the neck 4 of the tooth and approximately along the direction of its longitudinal axis. The legs of the pin preferably extend at right angles to the rear face 3.
Patent GB-1222071-A (GB)
Title: Light-sensitive photographic material
Inventor: DELZENNE GERARD ALBERT
IPC: C08G63/685
Filed: 1967-03-13
Abstract: 1,222,071. Photo-hardenable polymer compositions. GEVAERT-AGFA N.V. 12 March, 1968 [13 March, 1967], No. 11703/67. Headings C3P and C3R. [Also in Divisions C4 and G2] A photo-hardenable composition comprises polyvinylcinnamate (obtained by esterifying partially hydrolysed polyvinyl acetate) and a photo-chromic spiropyran, which on imagewise exposure gives a hardened polymeric image and a coloured image which is more stable in the dark than the normally obtained photochromic image. Alternatively, a polyester made by condensing 2,2-bis-(4-hydroxyphenyl)- propane and 5-azidoisophthaloyl chloride (see Specification 1,082,195) may be used as the photo-hardenable polymer. Reference has been directed by the Comptroller to Specification 1,154,716.
Patent GB-656854-A (GB)
Title: Oleaginous compositions particularly suitable for use as hydraulic fluids and/or insulating oils
IPC: C10M169/04
Filed: 1948-04-29
Abstract: A substantially non-inflammable oleaginous composition, suitable for use as a hydraulic fluid or insulating oil, comprises a normally liquid completely halogenated carbon compound, together with a polymerized unsaturated ester, the latter being present in a proportion of 2-15 per cent based on the halogenated carbon compound. Suitable completely halogenated carbon compounds are hexachlorobutadiene, hexachloropropylene, hexabromopropylene and tetraiodoethylene, while preferred polymerized unsaturated esters are polymerized esters of methacrylic acid.  Optional ingredients which may be present in the oleaginous composition are mineral oil, oxidation inhibitors, corrosion inhibitors, viscosity index improvers, pour-point depressants, wax suppressors, extreme pressure agents and partially halogenated organic compounds.  Oxidation inhibitors mentioned are aromatic amines and substituted phenols, particularly dimethyl phenols, 2,6 - di - tert. - butyl phenols, 2,4 - dimethyl - 6 - octyl phenol, o- and p-aminophenol, phenylene diamines and naphthylamines.  Corrosion inhibitors specified are of the following six types: (1) halogenated epoxides such as epichlorohydrin; (2) epoxides containing at least one unsaturated hydrocarbon group such as butadiene monoxide or styrene oxide; (3) glycidyl cycloaliphatic ethers and their substitution derivatives, particularly glycidyl cyclohexyl ether and alkylated glycidyl cyclohexyl ethers; (4) glycidyl aromatic ethers and alkyl substitution derivatives thereof wherein the alkyl groups are in the glycidyl or the aromatic radical, particularly glycidyl phenyl ether; (5) aldehyde-phenol condensates such as formaldehyde-p-octyl phenol condensates; and (6) metallic salts of alkylated aromatic acids such as zinc or magnesium diisopropyl salicylate.  Extreme-pressure agents mentioned are sulphurized sperm oil and sulphurized castor oil, and organic phosphates, particularly trioctyl phosphate and tricresyl phosphate.  The partially halogenated organic compounds may be trichlorocumene, 3,5-dichloronaphthalene, 1,3 - dichlorobenzene or chlorinated diphenyl.  The Specification as open to inspection under Sect. 91 refers to the use of polymerized olefinic hydrocarbons or polymerized indene instead of polymerized unsaturated esters in the oleaginous compositions.  Polymerized olefinic hydrocarbons mentioned are polyisobutylene, polystyrene, polymerized 1,3-butadiene and polyisoprene.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1097338-A (GB)
Title: Penicillanyl aldehydes
Inventor: CHENEY LEE CANNON
IPC: C07D499/00
Filed: 1965-03-19
Abstract: Antibacterial 6-substituted penicillanyl aldehydes have the Formula I: <FORM:1097338/C2/1> wherein R1 is amino, acylamino, benzyloxycarbonylamino, phthalimido or tritylamino. The penicillin aldehydes are prepared by (A) oxidizing the corresponding penicillanyl alcohols by excess of a carbodiimide, e.g. dicyclohexylcarbodiimide or diisopropylcarbodiimide, in an inert solvent, e.g. dry dimethyl sulphoxide or tetramethylene sulphoxide, in the presence of a catalyst which is anhydrous H3PO4, phosphorus acid, cyanoacetic, acid, pyridinium phosphate, pyridinium trifluoroacetate, pyridinium hydrochloride or pyridinium sulphate; or (B) hydrogenolysis by Raney nickel of a thiopenicillin, or a salt or an ester thereof, in an inert solvent at 0 DEG  C. to 50 DEG  C.  In method (B), an anhydrous solvent and a catalytic amount of a weak anhydrous acid such as glacial acetic acid may be present.  It is preferred, in method (B), that the reaction be carried out in the presence of reagents capable of condensing with the aldehyde to prevent decomposition of the -CHO during hydrogenolysis, e.g. N,N1-disubstituted ethylene diamine or 1,3-disubstituted propylene diamine.  The aldehyde is regenerated by treatment with p-toluenesulphonic acid monohydrate in acetone ether. Penicillin aldehydes are prepared according to copending Specification 1,093,113.  Penicillin thioacids and 6-amino thiopenicillanic acid are the subject of copending Specifications 1,078,077, 1,078,078 and 1,079,741.  The 6-substituted penicillanyl aldehydes are illustrated with reference to a wide range of general structural formulae as well as specific examples thereof.  A pharmaceutical composition having anti-bacterial properties comprises a 6-substituted penicillanyl aldehyde of Formula I and a carrier.
Patent GB-423701-A (GB)
Title: Improvements in or relating to electrostatic condensers
IPC: H01G4/258
Filed: 1934-04-19
Abstract: 423,701. Condensers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. April 19, 1934, Nos. 11847 and 11848. Convention dates, April 21, 1933. [Class 38 (ii)] A condenser consists of a plurality of electrodes comprising metallic coatings or deposits M upon insulating carrier bodies S of ceramic material of low temperature coefficient of expansion. In the example shown the electrodes' are supported by a central rod A through or near their centres of gravity and distance pieces Z are provided of a material having substantially twice the coefficient of expansion under heat, to accommodate for lateral expansion of the electrodes. The electrodes may be supported by a yoke-like structure in place of the central rod, the pressure being applied substantially centrally. In modifications the plates may be flat, and supported on a central ceramic rod, or may be formed with integral bosses in lieu of distance pieces. Connection to the plates is made by soldering &c. to an edge.
Patent GB-571026-A (GB)
Title: Improvements in or relating to anti-vibration mounting devices
IPC: F16F15/00
Filed: 1943-07-22
Abstract: 571,026. Resilient mountings. BARBER, W. E., and COLE, J. O. July 22, 1943, No. 11927. [Class 108 (iii)] A resilient mounting comprises a base member and a supported member forming part of the body to be supported, or attached thereto, and a resilient portion secured between the members in the form of two co-axial opposed cones having their bases secured to an annular plate or the like which forms one of the members, the resilient. portion being in tension. As shown in Fig. 3, the mounting, supported by a pedestal 7, comprises two rubber cones 2 each bonded to an axial metal tube 3 and around a hole in a base-plate 1, the two baseplates being secured together so that the ends of the two tubes 3 abut to form a sleeve for a bolt 5 by means of which the body to be supported is attached to the mounting. For supporting a small instrument, e.g. a voltmeter, the tubes 3 may be of large diameter to receive the instrument casing. To prevent excessive movement of the mounting in the direction of the axis of the tubes 3, circular metal plates 4, which .alternatively may be cup-shaped, are secured on the tubes, while, for the prevention of lateral movement, a washer (not shown) may be provided on the tubes where they abut. Each rubber cone may be clamped to its baseplate by a ring and only one base-plate may be employed for a pair of cones. In another construction, Fig. 9, helical springs 13, 14 arranged in cone formation connect washers 10 on a tube 11 with a base-plate 12, the outer ends of the springs being anchored to a circular wire 15 secured to the base-plate by upwardly and downwardly-bent tongues 16, 17 while the inner ends are secured similarly to a wire 18 held by tongues 19 extending from each washer 10. Excessive movement is prevented by plates 20 having fingers 21 adapted to engage the baseplate 12, and resonant vibrations are damped by a pair of cylindrical or saucer-shaped metal members 30, having interlocking teeth 31, which are slidable on the tube 11 and are pressed by a spring 32 against the springs 13, 14. In addition to the conical arrangement of springs, a number of radial springs may be arranged in the plane of the base-plate and anchored between the base-plate and a collar on the central tube, through which collar the tube is slidable. In a modification, vibrations are damped by U-shaped spring clips pressing against the insides of the springs 13, 14. In a further construction of mounting, the springs 13, 14 form, in plan view, the outline of a four-point star. Fig. 16 shows another application of rubber springs in which the tube 50 is connected to the base-plate 51 by sheets or webs 52 of rubber.
Patent GB-111494-A (GB)
Title: Improvements in and relating to the Manufacture of Horse and like Shoes.
Inventor: TILLER ERNEST
IPC: B21K15/02
Filed: 1916-08-23
Abstract: 111,494. Tiller, E. Aug. 23, 1916. Horseshoes. - Horse and like shoes are heated to a white heat, particularly at their inner curve during shaping and piercing. A bent blank is placed about a die b, Figs. 2 and 3, having passages i, groove m, and holes n for the flame from burners g, and pressed by a handoperated hinged die c. The dies have holes p so that the heels and nail holes can be struck. In a modification, a straight length of metal is clamped by a lever c<5>, Fig. 5, to the die b, round which it is bent by a sweep arm c<1> having holes p through which the nail holes are struck. In this modification the flame passes directly through an annular opening b<1> in the die b.
Patent GB-950599-A (GB)
Title: Improvements in or relating to electric battery charging arrangements
IPC: H02J7/22
Filed: 1960-04-05
Abstract: 950,599. Battery charging systems. NOVI S.A. April 5, 1960 [Nov. 19, 1959], No. 11995/60. Heading H2H. A battery charging arrangement has an impedance means connected in circuit by the operation of a relay which incorporates a means dependent on the position of the relay armature to provide a magnetic force tending to increase the voltage differential. A relay has a rail 2 voltage operated from a battery 14 and a permanent magnet 7 which increases the differential between pull in and drop out voltages. The relay controls a second relay 27 which disconnects additional generator coils 23a, 23b. A further means, operated by battery gas pressure 18, 19 disconnects a further winding 23c through a relay 29, 30. A 3-phase arrangement is also described in the Specification, wherein an impedance is connected in series with one phase by the second relay, and one phase is disconnected by the further means. The permanent magnet 7 of the relay may be replaced by an additional winding fed from the battery.
Patent GB-1088305-A (GB)
Title: Method for the preparation of 2,5-dimethylhydroquinone
Inventor: HAFNER WALTER
IPC: C07C37/20
Filed: 1966-03-18
Abstract: 2,5-Dimethylhydroquinone is prepared by heating diacetyl with an aq. hydrogen sulphite solution to at least 100 DEG  C.
Patent GB-119845-A (GB)
Title: Improved Method of and Apparatus for Mixing Cotton.
IPC: D01G13/00
Filed: 1918-07-23
Abstract: 119,845. Kido, S., and Kanegafuchi Boseki Kabushiki Kwaisha. July 23, 1918. Fibres, mixing.-The cotton to be mixed is fed by a number of lattices through bale breakers, or bale breakers and openers, into a mixer H, comprising a hopper, a feed lattice 1, a spiked lattice 2, and cooperating toothed beater 3 and stripper 4. When the whole of the fibre has been fed in, the mixer is put into operation. The fibre discharged from the mixer is raised from the delivery lattice 6 by a pair of vertical lattices EL and past a rotating roller 7 to a return lattice RL. Thence it passes down a trough RT to the mixer again. The fibre is thus circulated through the mixer until the operation is complete, when the direction of rotation of the roller 7 is reversed, and any fibre delivered is passed to a delivery lattice DL, which passes it to a cotton bin or direct to the next machine.
Patent GB-567553-A (GB)
Title: Improvements in drill or chuck spindles or shanks and the like
IPC: B23B31/08
Filed: 1943-07-26
Abstract: 567,553. Sockets, drills, reamers, &c. BATES, E. B. July 26, 1943, No. 12099. [Class 83 (iii)] Drills, reamers, boring-bars, &c. are driven through a resilient rubber coupling which may connect parts of the tool shank or the driving spindle. End thrust is positively transmitted. The two parts 1a, 1b abut by means of a part-spherical end 2, if desired with a thrust block interposed, and are connected by a rubber sleeve 3 that is bonded to the two parts. In jig work, slight misalignment is thus provided for and slight bending at the coupling may occur. In a modification, the parts are loosely connected by a transverse pin that relieves the coupling of the torque.
Patent GB-109093-A (GB)
Title: Improvements in or relating to Blast Furnace Charging Plant.
Inventor: BLECKLEY HERBERT SANDERSON
IPC: C21B7/18
Filed: 1916-08-30
Abstract: 109,093. Bleckley, H. S., Atherton, T., and Massey, E. Aug. 30, 1916. Apparatus fitted to lifting and transporting apparatus. -In a blast furnace charging plant a skip 1 is brought into position on a truck 2 running on rails 3 in front of a range of storage bins 10, and is engaged by the hook 5 of a weighing machine situated within a cabin 7 suspended from a carriage 8, running on rails 8<1> on a traverser 9. The skip is lifted bodily from the truck and the traverser is operated until a hook 13 on the carriage 8 engages the end of a weighted rod 14 connected by a bellcrank lever 15 to the door 18 of the spool 19 of the first bin. A motor is then started to lift the hook 13 through the crank-disk 45, and the door 18 is operated to allow ore to pass from the bin into the skip. When the corresponding scale beam in the cabin 7 is tipped, the motor it reversed and the door 18 is closed by the weighted rod 16. The skip is then moved in front of the bins in turn, and, when the required quantities of the different ores have been delivered, the carriage 8 is moved on the rails 8<1> and the skip is lowered on to a. truck on the rails 4 'by which it is taken to the furnace elevator. The skipoperating means in connexion with the weighing- machine are shown in detail in Fig. 5, and comprise a motor 21 which drives through worm gearing a vertical shaft 23. Mounted on the shaft 23 are loose pinions 26, 27 engaging respectively with a pinion 25 on an internallyscrewed bearing 24, and a pinion 28 on a shaft 29 rotatably mounted in the hollow verticallymovable shaft 31. A clutch 23<1> can be thrown over by a hand lever 39<1> to bring into operation either of the pinions 26, 27, the former serving to raise and lower the skip and the latter to rotate it about a vertical axis. Overrunning of the raising and lowering mechanism is prevented by an automatic clutch-disengaging device comprising levers 34, 37, 38, 39, which are actuated by a pin 32 to raise the lever 39<1> when the shaft 29 is approaching the limit of its vertical movement in either direction. The raising and lowering mechanism is mounted on a platform 41 carried 'by levers 42 which are connected up in known manner with a series of balanced scale beams in the cabin. The hook 5 for the skip is connected by a link 52 and rod 52<1> with a collar 63 on the shaft 29, and is brought into engagement by its own weight when the treadle 51 is depressed.
Patent GB-772698-A (GB)
Title: Anastigmatic objective
IPC: G02B13/04
Filed: 1955-04-29
Abstract: 772,698. Optical objectives. ZEISSSTIFTUNG, C., [trading as ZEISS, C.]. April 29, 1955 [Feb. 25, 1955], No. 12384/55. Class 97(1) In an anastigmatic objective for photography or projection containing two dispersive meniscii enclosed by two collective meniscii all concave to a central airspace which is greater than 4/5 of the mean of the radii of curvature of the surfaces bounding it, on each side of the four meniscii at least one dispersive single lens is provided in which the surfaces adjacent the central airspace have the greater curvature and in that airspace is located a collective correction for improving astigmatic zonal errors having a power at the most of that of the complete objective. Data are given for two examples of the objective shown. Specifications 423,156 and 472,191 are referred to.
Patent GB-587926-A (GB)
Title: Improvements in packing devices
IPC: F16J15/32
Filed: 1941-09-24
Abstract: A composition comprising a plastic material such as natural or synthetic rubber such as neoprene, polymerized butadiene or polyvinyl polymerization products, and a lubricating fatty or waxy substance such as solid paraffin, paraffin oil or ozokerite, the mixture having the property of continuously exuding the fatty or waxy substance from its surface, is used for the manufacture of the fluid-tight piston packing device comprising portions having different mechanical properties which is described in Group XXVI.