baber/WOPTO huggingface dataset:
Patent GB-735679-A (GB)
Title: Improvements in or relating to twin-lens photographic cameras having a common lens support
IPC: G03B3/00
Filed: 1953-05-14
Abstract: 735,679. Twin-lens photographic cameras. HEIDECKE, R., and FRANKE, H., [trading as FRANKE & HEIDECKE FABRIK PHOTOGR. PRAZISIONS - APPARATE]. May 14, 1953 [May 19, 1952], No. 13520/53. Class 98 (1). In a twin lens camera having a common lens board which is movable axially for focusing, the lens board is guided by two slides supported in laterally spaced guideways in the camera body and also on two guide pins on the front wall of the camera body, preferably substantially between the two objective openings. As shown, the lens board 11 is attached at each lateral margin to inwardly-turned flanges 10 on slides 3 carried on guideways 2 and is also guided by pins 14 screwed through the front wall 13 of the body from the rear and passing through bushes 16 on the flanges and through the lens board, this being secured to the flanges 10 after it has been located on the guide pins. Alternatively one of the bushes may be pivoted on the lens board at a point above or below the centre of a horizontal slot in it so as to accommodate inaccuracies in the lateral spacing of the pins. Focusing is effected by two pairs of snail cams 7, one pair at each side of the camera, on a manually rotatable shaft 8, each pair engaging stops 5, 6 on the guide 3. German Specifications 614,847 and 614,848 are referred to.
Patent GB-1209244-A (GB)
Title: Glass composition
IPC: C03C13/00
Filed: 1968-03-20
Abstract: 1,209,244. Glass fibres. OWENS-CORNING FIBERGLAS CORP. 20 March, 1968 [5 April, 1967; 7 Feb., 1968], No. 13539/68. Heading C1M. Glass fibres comprise from 50-68% SiO 2 , 12-32% Al 2 O 3 , the remainder being calcia and/or magnesia, the total of SiO 2  and Al 2 O 3  being from 80-86%, all per cents being by weight. A number of examples are given. The compositions are fiberized by melting the batch ingredients, e.g. potter's flint, clay and dolomite in a furnace and flowing this melt through feeders in the form of multiple streams of glass that are attenuated into individual fibres; which are gathered together into a strand, which is wound upon a collet winder. The strands are combined into yarns by conventional twisting and plying techniques.
Patent GB-135534-A (GB)
IPC: H02K9/06
Abstract: 135,534. British Thomson - Houston Co., and Pollock, A. A. Sept. 3, 1918. Dynamos and motors, cooling.-The air in totallyenclosed dynamo - electric machines is cooled by being forced by a fan 9 through alternate passages in an annular series of passages surrounding the periphery of the fan, after which it returns to the interior of the machine casing, cold air being forced by the fan through the remaining passages to absorb heat from the hot air by conduction through the walls of the passages. The series of passages 6, 7 may be formed in a ring 5, Fig. 1, secured between the casing 2 and the end shield 4, the inlet ends of the passages being staggered to co-operate alternately with blades on opposite sides of a double-bladed fan 9. In the construction shown in Fig. 12, the passages 27, 30 are formed by inclined sheet-metal plates 26, and are closed at the bottom along one-half of their width, alternately at opposite sides. In the construction shown in Fig. 4, the passages are formed in the fan itself, one stream of air entering and leaving by apertures 14, 15, and the other stream by apertures 12, 13 respectively; the passages may be formed by parallel radial plates, or by a single plate bent in zigzag fashion. In the construction shown in Fig. 9, the fan comprises a number of spaced annular plates joined together in pairs at their edges to form annular chambers 20 alternating with open passages 23. The chambers 20 communicate with the interior of the machine casing by means of tubes 21, whereby the hot air is circulated through them, while cold. air passes through the passages 23.
Patent GB-135536-A (GB)
IPC: B63C7/16
Abstract: 135,536. Fulton, M., (Representative of Fulton, H. T.). Sept. 19, 1918. Ordnance for submarine discharge. - Lifting chains or ropes are attached to a sunken vessel by means of expanding anchors fired from a gun into the ship's plating. The gun A is carried by a loose ring O by means of which it is lowered to the wreck by a cable T and cables R. The gun is provided with telescopic tubes B which are connected to the surface vessel by a cable U. When the ring 0 is resting on the wreck, the cables T, U are paid out so that the ring remains in contact with the wreck notwithstanding motion of the surface vessel due to waves. An explosive charge, which is subsequently fired electrically, is placed in a chamber D of the gun and the breech-block C screwed into position before lowering. Apertures E in the lower part of the barrel allow the explosive force to exhaust laterally when the anchor has been driven to the end of the barrel. The gun is then raised to the surface by the cable U, the lifting ring O being held to the wreck by the anchor G. In a modified form of gun, described in the Provisional Specification, the breech-block E, Fig. 1 (Provisional), slides horizontally in guides, and is operated by a screw actuated by a hand wheel F. The projectile is discharged by a driving block G working in the barrel, and is held in place prior to discharge by catches H connected by rods to a cross-bar K supported by a volute spring I. The lifting ring is not employed, the lifting cable being connected directly to a pivoted link on the end of the projectile, and the gun barrel being slotted to allow the passage of the link.
Patent GB-533497-A (GB)
Title: Improvements in and relating to synthetic resins and to articles made therefrom
IPC: G02B1/04
Filed: 1939-05-08
Abstract: 533,497. Vinyl polymerization products. NORTON GRINDING WHEEL CO., Ltd. May 8, 1939, No. 13666. Convention date, Jan. 30. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 8, 1939.] [Class 2 (iii)] Synthetic resins suitable for optical purposes and abrasives, are prepared by polymerizing, by known methods, a mixture of methyl methacrylate with methacrylic and/or acrylic anhydrides. A copolymer of methyl methacrylate and 5 per cent. of methacrylic anhydride is infusible and insoluble; a resin produced with 10 per cent. of methacrylic anhydride is suitable for shaping by grinding and polishing operations to produce an optical element. An abrasive article, e.g. a grinding wheel, may be produced from a mixture of abrasive grains with methyl methacrylate and 20 per cent. of methacrylic anhydride polymerized by heat in a suitable mould. Optical properties of the resin, e.g. refractive index, may be modified by the addition of a further polymerizable substance to the monomeric mixture e.g. nitroethylene, triphenylmethyl acrylate or methacrylate, o, m, or p-nitro-styrene, vinyl chloride, vinyl acetate or furyl vinyl ketone, or of a non-polymerizable substance having a high index of refraction, e.g. triphenylbenzene.
Patent GB-962533-A (GB)
Title: Anthelmintic compositions
IPC: A61K33/00
Filed: 1963-04-05
Abstract: Anthelmintic compositions suitable for administration to domestic animals comprise, as active ingredients, phenothiazine and a compound of the formula <FORM:0962533/A5-A6/1> wherein the benz-ring may optionally be substituted by one or more halogen atoms or lower alkyl or alkoxy radicals of not more than 4 carbon atoms, R stands for a thiazolyl; thienyl; furyl; phenyl; o-substituted phenyl where the ortho substituent is a methyl, chloro or bromo group; p-amino-, alkylamino- or dialkylamino-phenyl; or pyridyl radical, and R1 stands for hydrogen or a b ,b ,b -trichloro-a -hydroxyethyl group, or a pharmaceutically acceptable acid addition salt thereof. Specified benzimidazole ingredients are 2-phenyl-, 2 - (o - chlorophenyl) -, 2 - (o - bromophenyl)-, 2-(o-tolyl)-, 5-chloro-2-phenyl-, 5-methoxy-2-phenyl -, 2 - (p - aminophenyl) -, 2 - (p - dimethylaminophenyl) -, 2 - (21 - furyl) -, 2 - (41-thiazolyl) -, 2 - (51 - thiazolyl) -, 2 - (41 - thiazolyl) - 5 - methyl -, 2 - (21 - thienyl) -, 2 - (31-pyridyl)-, 2-(41-pyridyl)- and 1-(a -hydroxy-b ,b ,b  - trichloroethyl) - 2 - phenyl - benzimidazole, and 2 - (21 - furyl) - benzimidazole hydrochloride.  The compositions may also contain other drugs and/or mineral salts, e.g. cyanacethydrazide, hexachloroethane, piperazine, 1 - diethylcarbamyl - 4 -, methylpiperazine, carbon tetrachloride, 3,31,5,51,6,61-hexachloro - 2,21 - dihydroxydiphenylmethane, tetrachloroethylene, oxgall, sodium bicarbonate, sodium chloride and magnesium sulphate.  Other optional ingredients include emulsifying, dispersing and disintegrating agents, baxteriostats, bactericidal agents, sporicidal agents, stabilizing agents, thickening agents, preservatives and colouring agents.  The compositions may take the form of tablets, slugs, pellets, capsules, dispersible powders and liquid dispersions, and may also be incorporated into foodstuffs.
Patent GB-899071-A (GB)
Title: Improvements in and relating to apparatus for use in photographic reproduction methods
IPC: G03G15/26
Filed: 1957-04-30
Abstract: 899,071. Electrophotographic apparatus. OZALID CO. Ltd., and ROBERTSON, A. L. July 30, 1958 [April 30, 1957; July 1, 1957], Nos. 13674/57 and 20651/57. Class 98(2). Electrophotographic apparatus comprises a single processing location for an electrophotographic plate or sheet and charging and fixing means each mount for movement between a non-operative position and an operative position for acting on a sheet positioned at the processing location. The apparatus may include an optical projection device and a developing unit, and may be constructed as a double-pedestal desk. As shown in Fig. 1, the photoconductive sheet is placed on the support 20 on the top of a pedestal desk, where it may be held by suction pads 25, and a unit 17 containing corona charging wires and an infra-red heating lamp is arranged to slide in guides 5, 6 across the sheet to effect charging or fixing. Exposure may be by a projector 29 or by placing the sheet in a contact printer (not shown) located in the pedestal 3. This comprises a translucent plate provided with a hinged cover in the surface of the desk and having a lamp beneath it. The pedestal 2 contains a developer unit comprising a hopper which is fed by a chain of buckets. The exposed sheet is inserted by hand into slot 21 for development and returned to the support 20 for fixing.
Patent GB-544443-A (GB)
Title: A four stroke cycle compound internal combustion engine
IPC: F02B41/06
Filed: 1940-09-09
Abstract: 544,443. Four stroke cycle compound engines. BUTLER, F. G. J., and KITE, E. A. Sept. 9, 1940, No. 14012. [Class 7 (ii)] Cylinders working in pairs exhaust alternately into a common crank chamber or into connected crank chambers. In the construction shown in Fig. 1, the two inner cylinders C<SP>2</SP>, C<SP>3</SP> exhaust into a common crank chamber G whereas the two outer cylinders exhaust into crank chambers K, L which are in open communication through a pipe, not shown. A rotary valve H opens the crank chambers to the atmosphere to exhaust the expanded products.
Patent GB-722130-A (GB)
Title: Process for the direct electrochemical conversion of the chemical energy of carbon or of combustible gases into electrical energy
IPC: H01M8/00
Filed: 1952-06-03
Abstract: A hollow cylinder closed at one end and consisting of the carbonate of an alkali metal or an alkaline earth metal is made by pouring the molten carbonate into a mould and inserting a cylindrical or slightly conical plunger which is withdrawn immediately after the melt solidifies on the wall of the plunger. The mould and plunger may be nickel plated or made of nickel to prevent adherence of the cast material.  In another method only the mould is nickel plated, the plunger being of iron or other material to which the melt will adhere.  The plunger is withdrawn when sufficient of the solidified melt has adhered to it to leave in the mould a cylinder having the required thickness of wall.  A small amount of aluminium oxide may be added to the melt to increase the rate of crystallization.
Patent GB-553030-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/04
Filed: 1941-10-31
Abstract: 553,030. Microphones. FOUNTAIN, Ltd., G. R., FOUNTAIN, G. R., SNELL, A. E. C., HOULGATE, H. J., GILBERT, E. P., and HAINES, W. J. Oct. 31, 1941, No. 14046. [Class 40 (iv)] In a differential carbon microphone having a member 5 with apertures therein to receive the carbon granules, the apertures are closed on one side by a metal disc 8 which is slightly dished so that on tightening the central fixing means 17 the disc 8 is flattened. The fixing means 17 is a double-ended screw carried by the member 5, the electrodes 7, 8 for closing the granule chambers being secured by nuts at opposite ends of the screw. The periphery of the diaphragm 13 is spaced from the apertured member 5 by spacing rings 23. The whole assembly is clamped together by rivets 24 extending from the member 5 to a metal ring 22 on the other side of the diaphragm. Specifications 507,183 and 537,524 are referred to.
Patent GB-281545-A (GB)
Title: Improvements in or relating to packing rings for use with pistons and similar moving parts
IPC: F16J9/20
Filed: 1927-05-25
Abstract: 2,81,545. Madsen, T. May 25, 1927. Pistons; packing. - Two split packing rings 3, 4, arranged to break joint, are interlocked by a circular rib 6 on one ring engaging a groove in the other ring. The ring 3 is bevelled to form an oil-scraping edge 16, which may be undercut at 15.
Patent GB-202413-A (GB)
Title: Improvements in or relating to tennis courts and the like
IPC: E01C13/04
Filed: 1922-05-19
Abstract: 202,413. Rutherford, J. F., and Davis, W. A. C. May 19, 1922. Continuous paving.-Tennis, bowling and like playing courts are formed with a base or foundation of wood, concrete or other material with flat or cambered surface which is covered by strips of partly or wholly vulcanized rubber, coloured as desired, and cemented to the base and to each other at their edges. The markings may be formed of strips of white rubber. The strips of rubber may be composed of a mixture of rubber and organic filling-material such as wood meal, leather waste, cork dust, or wool waste, which latter is said to impart a nap or pile to the finished material. Gutters are formed in the foundation and covered by gratings which themselves are covered by strips of rubber material. Specifications 129,826 and 176,073, [both in Class 70, Indiarubber &c.], and 182,640 are referred to.
Patent GB-611850-A (GB)
Title: Improvements in and relating to casings for electrical condensers and the like
IPC: H01G4/224
Filed: 1946-05-10
Abstract: 611,850. Electric resistances; condensers. JOHNSON, MATTHEY, & CO., Ltd., and WYETH, E. J. May 10, 1946, No. 14187. [Class 37] An electric condenser 8 or resistance is enclosed in a flattened tubular container 1 of ceramic material or glass having convex edge portions 4, the open ends of the container being hermetically sealed by metal end caps 11 soldered to metallised portions of the container. The caps 11 may have flanges 11b fitting over and soldered to metallised portions 5 and 10, or alternatively the caps themselves or flanges located inwardly of the periphery of the caps may fit inside and be soldered to the container. The leads 2 may pass through openings 11c in the caps to which they are soldered. According to the Provisional Specification, the ends may be sealed by thin metal strips, the end faces only of the container being metallised. The condenser may be a stacked foil and mica or a silvered mica condenser. Specification 566,718, [Group II], is referred to. Reference has been directed by the Comptroller to Specification 440,948, [Group XXXV].
Patent GB-679287-A (GB)
Title: Improvements in and relating to stapling machines
Inventor: VANDERVIEREN AIME ALBERT
IPC: B25C5/10
Filed: 1950-06-07
Abstract: 679,287. Hand stapling-machines. GOODMAN & V ANDERVIEREN, Ltd. May 11, 1951 [June 7, 1950] , No. 14243/50. Class 89 (iii). In a stapling device comprising a driver 4 mounted on a spring- raised plunger 5 carried by a pivoted arm 2, the staple being driven is guided by a rigid member 8 and by a flexible member 13 which can be moved to inoperative position by a manually adjustable cam 17. The legs of the staple move in grooves in the member 8 and the cross-bar is engaged by the flexible member 13. An inturned tongue 14 on the member 13 prevents premature inward movement of the staple legs.
Patent GB-1531328-A (GB)
Title: Cathode ray tube
IPC: H01J31/20
Filed: 1976-04-08
Abstract: 1531328 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 April 1976 [11 April 1975] 14333/76 Heading H1D A plural beam shadow mask type C.R.T. comprises a low conductivity electron absorbing layer 21 with apertures corresponding to the phosphor regions, local mislanding of the electron beams due to thermal distortion of the mask causing negative charging of layer 21 resulting in electron deflection to counter mislanding as discussed with respect to Figs. 2 and 3 (not shown). Layer 21 may be Al 2 O 3  at least 0À003 mm. thick (e.g. 0À01 mm.), and the thickness should preferably be at least the same order as the average depth of electron penetration and of secondary emission coefficient <1 for the electrode configuration and electron energy (25 keV.). Al layer 20 maintains screen potential and reflects phosphor emissions. Mask to screen potential may be 1 kV. Photographic formation of layer 21 is detailed, the process being repeated for a thicker layer.
Patent GB-654362-A (GB)
Title: Improvements in electrophoretic deposition
IPC: C25D13/02
Filed: 1947-05-30
Abstract: 654,362. Electrophoretic deposition. WESTERN ELECTRIC CO., Inc. May 30, 1947, No. 14414. Convention date, June 8, 1946. Drawings to Specification. [Class 41] [Also in Groups XXXVII and XL (a)] Finely-powdered solids are electrophoretically deposited at a potential not exceeding 20 volts on to a base-member from an electrolyte in which they are held in suspension comprising a polar solvent or mixture of polar solvents and an activator in the form of a hydrated metal oxide with respect to which the finely-powdered solid is inert and being such that its solubility and disassociation in water is negligible. If the base is a non-conductor it is rendered conductive, e.g. by applying a layer of graphite. The polar solvents may be, e.g. water, methyl alcohol, ethyl alcohol, isopropanol, dioxane and ethyl glycol, used separately or mixed, e.g. a mixture of water with more than 70 per cent of organic solvent. The hydrated metal oxides may be selected from the group consisting of Al, Cr, Fe, Ni, Mn, Co and Be. The finelydivided powdered solid may be, e.g. an inorganic insulating substance such as powdered glass or ceramic material, an insoluble organic material, e.g. to act as a binder, such as polyvinyl alcohol, urea, cellulose, natural and synthetic resins, pigments, glazes and viscous fluids such as lacquers or other finishes, if obtainable as stable emulsions. The invention may be employed (a) for depositing insulating coatings, electron-emissive coatings and coatings for inhibiting secondary emission of electrons (see Group XL (a)), (b) for the preparation of corrosion and wear resistant surfaces on metal by depositing thereon calorizing or carburizing compounds, (c) for the production of laminated articles such as electrical condensers by depositing alternate layers of metal and insulation on a base element, (d) for the production of strip films of predetermined' proportions of metallic or dielectric compounds, (e) for alloy coatings by controlling the proportions of materials in the electrolyte, the coating deposited being heated in hydrogen to obtain the final alloy product, (f) electroforming of metallic products by depositing metallic powders and hydrated metal oxides and finally sintering the deposited coating, (g) depositing nickel upon tungsten or molybdenum wire contacts to provide a wetting metallic contact-surface for mercury switches (see Group XXXVII).
Patent GB-184894-A (GB)
Title: Improvements in or connected with tractor ploughs, cultivators and the like
IPC: A01B63/24
Filed: 1921-05-24
Abstract: 184,894. Darby, S. C. May 24, 1921. Arrangements of tools on ploughs, cultivators, etc.; adjusting and lifting parts.-The wheels of a tractor plough, cultivator, or the like are arranged at a distance apart equal to the width of a standard stetch, the breasts of the plough being arranged so as to turn the soil on to the tracks of the tractor wheels and produce furrows along which the tractor wheels travel during the next traverse. Fig. 2 shows a plough connected to a tractor, the wheels of which are at a distance apart equal to the width of a stetch as described in Specification 167,042, [Class 79 (iv), Motor-vehicles, Frames &c. of]. A wide plough frame d, d<1> is connected by pivoted rods h to a transverse draw-bar c fastened to longitudinal draw-bars b. The frame carries two plough breasts e which are arranged to cover the tracks of the tractor wheels a. The frame d, d<1> is mounted on front wheels f and rear castor wheels g in alignment with the ploughs. Means are provided for swinging the rods h about their front pivots to move the implement frame laterally so that the wheels f, g run at one side of the wheels a or directly behind them. Fig. 4 shows an implement fitted with skimming-shares. In this, the position of the rods h is fixed by means of pivoted rods i, j movably connected together by transverse pieces k and adjusted relatively to one another by a lever k<2> and locking quadrant k'. Screws may replace the lever and quadrant. The implement frame may be raised by putting a rack f<3> into gear with a toothed wheel f<20> on each wheel f and thus rocking the cranked axles. The axles may also be rocked by means of screws l. The frame may be held in its raised position by the engagement of a notch with the edge of a slot. For ridging up potatoes &c., the breasts e may be fastened to the inner longitudinal members d<1> of the frame. A sub-soiling plough may be substituted for one of the breasts e. The frame d, d' may be dispensed with and the bars b extended to carry a wide draw-bar c to which two ordinary ploughs are attached, the bar c being provided with lifting-wheels or other lifting-mechanism carried by the tractor. According to the Provisional Specification, the implement frame may be raised by a pivoted and forwardly projecting sprag which is allowed to fall into contact with the ground, a hook being provided to hold the frame in its raised position, and a chain to move the hook to allow the frame to fall.