baber/WOPTO huggingface dataset:
Patent GB-1457427-A (GB)
Title: Tube tapering machines
IPC: B21C37/18
Filed: 1973-03-10
Abstract: 1457427 Rolling tapered tubes BROOKES (OLDBURY) Ltd 5 March 1974 [10 March 1973] 11688/73 Heading B3M A machine for rolling tapered tubes includes a pair of grooved pilger rolls 10, 11 and a rod 12 for progressively feeding a tube between the rolls, the rod being so controlled that the feed movement is reduced during rollings. During each working step of the rolls, they rotate in a sense to push a tube (and the rod 12) towards the right (Fig. 1). Between successive working steps, the rod is moved to the left by a ram 14 to feed the tube between the rolls. The amount of feed of the rod is determined by an adjustable stop 15c which is contacted by a plate 18 associated with the ram. The stop is moved to the left in progressively smaller steps during rolling. This may be effected either by controlling the flow of air out of a cylinder 15 whose piston carries the stop, or by a mechanical arrangement. The rod 12 may be intermittently rotatably indexed by a unit 20.
Patent GB-566917-A (GB)
Title: Improvements in or relating to internal combustion engines of the opposed piston type
IPC: F02B75/28
Filed: 1942-08-20
Abstract: 566,917. Cooling. SULZER FRERES SOC. ANON. Aug. 20, 1942, No. 11708. Convention date, Sept. 20, 1941. [Class 7 (ii)] In an engine of the opposed-piston type having a cylinder liner 1 in whose wall are passages 4 for cooling-medium in the neighbourhood of each hole 5 for a cylinder fitting such as a fuel-injection device, the passages 4 open into a deep annular groove 8 around the cylindrical wall 7 of the hole 5. Holes such as 5 may be provided for the exhaust valve or an indicator cock.
Patent GB-1466224-A (GB)
Title: Optical transmission fibres
IPC: C03C25/26
Filed: 1975-03-20
Abstract: 1466224 Coated optical glass fibres SUMITOMO ELECTRIC INDUSTRIES Ltd 20 March 1975 [20 March 1974 28 Feb 1975] 11783/75 Heading B2E [Also in Division G2] An optical transmission fibre comprises optical glass fibre having on its surface (a) one or more layers formed by coating and baking a liquid resin composition, or solution or dispersion prepared by dissolving or dispersing in a solvent a liquid or solid resin composition and (b) an outer coating of a thermoplastic resin composition formed on the or the outermost layer by melt-extrusion. The resin composition for the lower layer preferably contains polar or functional groups which may react with the surface of the glass. Suitable resins are polyesters, polyamides, polyacetals, polyvinylacetal, polysulphones, polyurethanes, polyethers, polyester imides, polyamideimides, polyamides, polyacrylates, polyvinyl acetate, ethylene-vinyl acetate copolymers, ethylene-acrylic acid copolymers, epoxy resins, epoxy resin derivatives, phenolic resins, resorcinol resins unsaturated polyester resins, urea resins, furan resins, silicone resins, alkyd resins, melamine resins and diallylphthalate resins. Preferably the coating is carried out immediately after the glass fibre has been drawn and before it has come into contact with any other solid object. The refractive index of the coated and baked resin composition and of the thermoplastic resin composition are preferably equal to or greater than the refractive index of the outer portion of the optical glass fibre. Many suitable thermoplastics resins for the melt-extrusion layer are specified.
Patent GB-118072-A (GB)
IPC: F16D41/00
Abstract: 118,072. Sykes Interlocking Signal Co., W. R., and Tarrant, R. W. April 23, 1918. Visual outdoor signals.-A mechanism, particularly for use in operating railway semaphore signals but not solely applicable thereto, comprises a relatively high-speed electro-motor, which moves the relatively slow-moving element against gravity from a normal position to which it is returnable independently of the motor, a worm or equivalent speed-reducing and loadsustaining mechanism interposed between the motor and driven element during the driving interval but cut out when the driven element is restored by gravity; and a ratchet mechanism interposed between the worm or equivalent and a crank or eccentric actuated by the motor and serving to operate the ratchet mechanism. Fig. 1 shows an eccentric sheave c on the motor shaft c, serving to reciprocate the crank-member j on the shaft d. The member j is rigidly connected to the outer toothed disk of a free-wheel device, the inner disk of which is fixed to the shaft d. Ball bearings are provided between the members of the free-wheel device.
Patent GB-591860-A (GB)
Title: Improvements in and relating to methods of preparing mixtures of chlorosilanes
IPC: C07F7/20
Filed: 1944-06-21
Abstract: Mixtures of silicon tetrachloride and trimethyl chlorosilane are separated by distillation in presence of acetonitrile or acrylonitrile as azeotropic agent the silicon tetrachloride-nitrile azeotrope distilling over at a lower temperature than the silicontetrachloride-trimethylchlorosilane azeotrope.  The nitrile-azeotropes may be used as such for hydrolysis and polymerization of the silanes or may be separated on condensation into two phases comprising an upper layer consisting of the nitrile saturated with the silane and a lower layer consisting of practically pure silane (about 2-3 per cent. nitrile).  The distillation may be carried out at pressures below or above normal and in two column systems.  Specification 591,857, [Group IV], is referred to.
Patent GB-527745-A (GB)
Title: Improvements in or relating to variable electric resistances or potentiometers
IPC: H01C10/38
Filed: 1939-04-19
Abstract: 527,745. Variable resistances. EDWARDS, B. J., JACKSON, D., and PYE, Ltd. April 19, 1939, No. 11855. [Class 37] One or more cylindrical resistance elements 1 mounted on a panel 2 are engaged by sliding contacts 5 formed by pressed-out portions of the limbs of a resilient U-shaped metal strip 4 secured by a rivet 11 to an insulating member 10 slidable within a slot in the panel and screwed at 6 into a finger 8. A resilient insulating strip 9 is disposed between the panel and member 4, so that when the nut 8 is turned to lock the sliding contact in its adjusted position, as shown to the right in the Figure, the strip 9 bows and forces the contacts 5 more firmly against the resistance. A cam and lever device may be used, alternatively, for the locking device and the member 4 may be formed partly of insulating material. Also, only the bridge portion of member 4 need be resilient.
Patent GB-377631-A (GB)
Title: Manufacture of alkali alcoholates
IPC: C07C29/70
Filed: 1932-04-25
Abstract: In the manufacture of alkali alcoholates by removal of water from a mixture of an alcohol and alcoholic alkali, the alcoholic alkali is caused to flow in countercurrent to the alcohol vapour. To facilitate the removal of water vapour, a suitable auxiliary liquid, such as benzine, benzene, or a non-hydrolyzable ether may be introduced into the still.  Examples are given of the preparation of sodium ethylate, and sodium and potassium butylates.
Patent GB-635287-A (GB)
Title: Improvements in electrical networks for echo correction in electrical signalling systems
IPC: H04B3/40
Filed: 1947-05-02
Abstract: 635,287. Waveform correcting networks. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. May 2, 1947, No. 11879. [Class 40 (viii)] A waveform correcting device to compensate for echoes comprises a transmission line terminated at one or both ends by impedances of such dimensions that a pulse applied to the input produces a series of equally spaced output pulses whose amplitudes form a geometric progression. As shown, a resistance R0 is connected in series with the terminating resistance R1 at the input end of a coaxial cable of characteristic impedance Z0 which is terminated at the other end by a resistance R2. The output appearing at the input terminals comprises an equally spaced series of pulses with amplitudes forming a geometric progression of amplitude ratio k when the following relations are satisfied : k = (R1 - Z0)(R2 - Z0)/(R1 + Z0)(R2 + Z0) R0=R1Z0/(R1-Z0) The end of the line remote from the input may be short- or open-circuited (R2=O or #). In a modification, Fig. 3 (not shown), the output is taken from the end of the line remote from the input. Either end of the line may be open-circuited, and the other end terminated by a resistance R such that R= Z0(1+k)/(1-k). Specification 630,200, [Group XI (c)], is referred to.
Patent GB-551799-A (GB)
Title: Production of coloured photographic images
IPC: G03C5/48
Filed: 1941-09-18
Abstract: 551,799. Coloured photographic images. TULL, A. G. Sept. 18, 1941, No. 11975. [Class 98 (ii)] A silver complex image having a chromate acid radical is produced by treating a silver salt image in an emulsion layer with a soluble chromate or bichromate in the presence of thiourea or thiosinamine. A single bath containing both the chromate or bichromate and the complexforming reagent, or separate baths, may be used. The silver salt image may be the residual silver halide in a developed but unfixed emulsion layer, or may be derived from the developed silver image by bleaching e.g. to silver halide or ferrocyanide ; and in the latter case the bleaching agent may be included in a single bath with the soluble chromate or bichromate and the complexforming reagent The silver chromate complex image so produced is of yellow to orange colour. It may be converted to the simple red silver chromate by bathing with silver nitrate. Its colour may also be changed by treatment with a metal salt as of lead, zinc, or barium to form a coloured metal chromate; or by making use of its mordanting action, or that of a metal chromate image derived from it, for basic dyestuffs, or the similar property of being able to precipitate dyestuffs in the form of their insoluble chromate salts. Farmer's Reducer may be used to remove unwanted silver or silver salts. Specifications 333,361, [Class 98 (ii)], 540,970 and 551,800 are referred to.
Patent GB-301697-A (GB)
Title: Improvements in or relating to book-form savings banks
IPC: A45C1/12
Filed: 1928-04-24
Abstract: 301,697. Tennant, W. J., (Automatic Recording Safe Co.). April 24, 1928. Money, boxes specially designed for.-The bookform savings bank described in Specification 301,593 is provided with means for interlocking the extremities of the arms of the U-shaped closure with an internal reinforcing member on the back of the bank. As shown, the extremities of the inturned flanges of the arms 8<a> of the U-shaped closure B are provided with slots 8<b> which engage forwardly-turned flanges 21<b> on the reinforcing member or plate 21 secured by rivets to the back 1 of the bank.
Patent GB-566264-A (GB)
Title: Combined garden plant protector and support
IPC: A01G9/12
Filed: 1943-07-24
Abstract: 566,264. Plant supports and protectors. PERRY, A. T July 24, 1943, No 12055. [Class 6 (ii): Wire mesh plant supports and pro tectors are of finer mesh below than above. Parallel frames are spanned low down by a transverse member B attached by pivoting rings C, The ends are closed by frames D.
Patent GB-1074193-A (GB)
Title: Improvements in or relating to aerial reflector surfaces
Inventor: WALES MICHAEL
IPC: H01Q15/16
Filed: 1964-03-23
Abstract: A microwave reflecting, refracting or guiding device comprises a reflective member which is formed of polyester resin containing small irregularly shaped metal particles which have been added before curing.  The particles may be of an element in the transitional range, for example, copper, zinc, nickel, silver or be of brass or chilled cast iron and of sizes up to about 0.04 in. but not able to pass a 250 mesh.  The metal-polyester resin mixture be between 70/30 and 85/15 parts by weight and there may be included up to 4% by volume of a curing accelerator and up to 5% by volume of a thixotropic medium.  As described, a radio reflector dish is made by taking a fibre-glass mould of the required profile and applying the metal/polyester resin mixture using a strickle which is given a rapid vertical vibration (the mould being horizontal) while it is slowly rotated to spread the mixture over the mould, following which curing is effected. Other devices which may comprise such reflective members are waveguides, radio horns and radio lenses.
Patent GB-528194-A (GB)
Title: Improvements in or relating to apparatus for use in separating solid particles centrifugally from gaseous fluids
IPC: B04C11/00
Filed: 1939-04-22
Abstract: 528,194. Centrifugal dust separators. HOWDEN & CO., Ltd., J., and NELSON, W. April 22, 1939, No. 12159. [Class 23] Solid particles are separated from gases in a separator having a casing 1 with an inlet 6 and a clean gas outlet 3. The inlet is divided by an annular partition 4 into a central passage 5 and an outer passage 6. Each passage has helical vanes 7 to cause the entering gas to whirl. and a baffle 9 deflects it to the casing. The apparatus may be used while dry or sprayers 10 may supply liquid which travels down the casing wall to carry the separated dust to the drain 11. The inlet passage 5 is controlled by an angularly moving damper 8 so that the volume of the entering gas may be controlled to maintain the efficiency of the apparatus under varying loads. Specification 482,594 is referred to.
Patent GB-400295-A (GB)
Title: Improvements relating to milking equipment
IPC: A01K1/12
Filed: 1932-04-28
Abstract: 400,295. Appliances for use in milking animals ; cattle stalls. GASCOIGNE, G. H., Queensmere, Wokingham, and KNOX, J. R., 7, Brunswick Hill, Reading, both in Berkshire. April 28, 1932, No. 12169. [Class 84.] A transportable outfit for milking cows comprises a plurality of easily erected sections, each comprising two or more stalls, formed of framing such as hurdles 1 braced together by longitudinal members 3, each section being provided with lengths of piping 4, 11<1>, adapted to be connected to the piping of adjacent sections, for respectively collecting the milk and transmitting the suction to the pulsators 11a, one of which is provided in each stall. The piping 4 is connected by flexible conduits 8 to milk receivers 9, and the piping 111 is connected by a conduit 11 to a transportable suctionproducing plant 12, the conduit 11 being also connected by flexible conduits 10 to the receivers 9. The stalls are each provided at one end with a door 2, formed with a manger 13 chargeable from the outside, and capable of being opened and closed from the other end by means of a bar 14 connected to an upright 15 on the door. The bar is formed with notches 16 adapted to engage the member 3. The stalls may be covered by a collapsible or roll-up hood or cover 17.
Patent GB-1418025-A (GB)
Title: Electrical contact materials
IPC: H01H1/0237
Filed: 1972-03-15
Abstract: 1418025 Silver-base electrical contact materials SQUARE D CO 9 March 1973 [15 March 1972] 12189/72 Headings C7A and C7D An electrical contact material consists by weight of:- 2.5 to 20% cadmium oxide not more than 3% caesuim and optionally up to 3% mercury the balance being silver. Caesuim-containing materials are produced by mixing cadmium oxide and silver powders; adding a solution of a caesium compound to form a slurry; air drying the slurry at e.g. 60 C; sieving the dried powder mixture; compacting and sintering. Preferred caesuim compounds are caesuim nitrate, caesuim carbonate caesuim iodide in propanol. Mercury and caesuim-containing materials are produced by mixing cadmium oxide, mercuric oxide and silver powders; reducing the mixture in, e.g. hydrogen at 200-700‹C to produce a silver-cadmium; mercury alloy; internally oxidizing the cadmium; sieving the resulting mixture; incorporating a caesuim-compound solution fo form a slurry; airdrying and sieving the powder again; compacting and then sintering in a pressurized enclosure to prevent undesirable loss of mercury.
Patent GB-718550-A (GB)
Title: Improvements relating to binocular optical instruments having twin image erecting systems
IPC: G02B27/22
Filed: 1952-05-15
Abstract: 718,550. Optical apparatus. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. May 15, 1952 [May 17, 1951], No. 12309152. Addition to 681,636. Class 97(1) A binocular optical instrument has twin image erecting systems each comprising four plane reflecting surfaces of which two are rotatable about mutually perpendicular axes each perpendicular to the plane of incidence, on the surface concerned, of an axial ray, corresponding surfaces in the two systems being coupled for concurrent rotation the members of one pair being mounted on a common axis. The stereoscopic viewer shown comprises a base 1 for supporting stereoscopic pictures 2, 2<SP>1</SP> and, on rods 4, a housing 3 for the optical systems. Each system comprises a cover glass 5, pivoted mirror 6, part objective 8, pivoted prism 9, fixed prism 11, part objective 12 fixed prism 13, rhomboidal prism 15 and eyepiece 14. The eyepieces and rhomboidal prisms are adjustable to vary the interocular distance. The mirrors 6 are mounted on a shaft 7 for simultaneous rotation by a knob 16 the prisms 9 are linked by a rod 17 for simultaneous actuation by a knob 18. Another described embodiment is a binocular periscope in which the first and third mirrors, reckoning from the light entry end of the instrument, are pivoted. The first mirrors are on a common shaft and are rotated to explore the field of view vertically. The third mirrors are coupled to explore horizontally. The objectives are mounted between the third and fourth mirrors.
Patent GB-140264-A (GB)
Title: Improvements in and relating to gas cookers
IPC: F24C13/00
Filed: 1919-05-16
Abstract: 140,264. Camp, R. M., Ling, S., and Woodhouse, T. May 16, 1919. Gas cooking-stoves convertible into washing- boilers.-A gas-cooker is made with a hot-plate c hinged at c' and an oven top d hinged at d' to enable a copper f to be inserted into the oven and heated by the burners i. The copper is supported by its flange f resting on a seating e beneath the top d, an exhaust pipe h being fitted above the seating. The boiling-rings &c. on the hot-plate c are preferably secured in their positions on it.
Patent GB-1383308-A (GB)
Title: Diesel engines
IPC: F02B47/02
Filed: 1972-04-13
Abstract: 1383308 Treating charge J A BUTLER 13 April 1972 12315/71 Addition to 1352148 Heading F1B The engine claimed in Specification 1352148 is modified by means whereby water can be admitted into the air-stream in measured quantities before the air is distributed to the engine cylinders at or approaching maximum load conditions. Water is drawn from a constant level sump 101, Fig. 2, through a valve 102 and restrictor 104 into induction pipe 111. Valve 102 may be connected directly through rod 107 to engine throttle rod 109 or indirectly through a pendulum 108 which can swing freely in a plane parallel to the vehicle's direction, When the pendulum is fitted, the valve and restrictor are set to provide maximum water addition only when pendulum is lagging to its maximum extent i.e. when accelerating or climbing a hill. Sump 101 may be mounted directly on an engine manifold. Isopropanal may also be added. A second passage may inter-connect the space above the liquid with the induction passage.
Patent GB-1217826-A (GB)
Title: Floating transfer apparatus for loading and unloading ships
IPC: B65G67/00
Filed: 1969-03-10
Abstract: 1,217,826. Pontoons for loading and unloading ships. INDUSTRIEELE HANDELSCOMBINATIE HOLLAND N.V. 10 March, 1969 [26 April, 1968], No. 12391/69. Heading B8E. Apparatus for unloading bulk cargo into lighters 28, 29, 30 is supported on a pontoon 1 which is divided into two halves 2, 3, so that several lighters can be brought into loading positions together, thus minimizing the time wasted waiting for full lighters to move away and empty lighters to come alongside. Cargo is unloaded by a bucket elevator 9, slewable about a horizontal axis 10, and transferred, via a shoot 12 and a conveyer 11, to a bunker 13. From the latter cargo passes up a conveyer 14 to a pair of longitudinal conveyers 17, 18. Each of the longitudinal conveyers has four telescopic discharge pipes 16 which pivot in horizontal and vertical planes.
Patent GB-694270-A (GB)
Title: Improvements in or relating to spoons
Inventor: ELLIOTT GORDON ARTHUR
IPC: A47G21/04
Filed: 1951-05-28
Abstract: 694,270. Spoons. B. E. F. TOOLS, Ltd. March 7, 1952 [May 28, 1951], No. 12453/51. Class 128 [Also in Group V] A spoon, moulded from polystyrene, cellulose acetate or like plastic, is formed with a suspension hook 4, 5 extending from the edge of an opening 6 in a, preferably widened, part of the shank 3, the limb 5 of the hook being equal in length to the opening. The hook may be strengthened by a web 8.
Patent GB-783311-A (GB)
Title: Improvements in or relating to brake fluid
IPC: B60T11/10
Filed: 1955-04-29
Abstract: 783,311. Hydraulic fluids. WAGNER ELECTRIC CORPORATION. April 29, 1955 [May 12, 1954], No. 12454/55. Addition to 744,385. Class 69 (2). An hydraulic brake fluid comprises per 100 parts by volume, 50 to 75 parts by volume of a diluent comprising an alcohol having the formula C6H13OH and methoxy-butanol or a C1-C4 monoalkyl ether of ethylene glycol or of diethylene glycol, from 5 to 20 parts by volume of a ricinoleate of an aliphatic glycol having up to 5 carbon atoms per molecule, from 5 to 20 parts by volume of a water-insoluble polypropylene glycol having an average molecular weight between 1000 and 3000, from 5 to 25 parts by volume of propylene glycol and/or hexylene glycol, and a minor proportion of a corrosion-inhibitor. The alcohol having the formula C6H13OH may be methyl isobutyl carbinol. The corrosion-inhibitor may be potassium ricinoleate or diamylamine. Examples of compositions are given containing methyl isobutyl carbinol, diethylene glycol mono-ethyl ether, a polypropylene glycol having a molecular weight of 2000, 2-methyl-2,4- pentanediol, propylene glycol, propylene glycol mono-ricinoleate, diphenylol propane, potasium ricinoleate and tricresyl phosphate.
Patent GB-1152641-A (GB)
Title: Pharmaceutical Compositions Containing Tetracycline and Oxytetracycline
Inventor: POMMIER RAOUL
IPC: A61K31/65
Filed: 1967-03-17
Abstract: 1,152,641. Tetracyclines. SOCIETE GENER ALE DE RECHERCHES ET D'APPLICATIONS SCIENTIFIQUES #SOGERAS". 12 March, 1968 [17. March, 1967], No. 12552/67. Heading A5B. A pharmaceutical composition for oral administration comprises a stable aqueous suspension of a finely divided tetracycline or oxytetracycline base and glycine, prepared by reacting an aqueous solution of a water-soluble salt of tetracycline or oxytetracycline, e.g. the hydrochloride, with an aqueous solution of glycine having a concentration of at least 1 % (weight/volume) and -dispersing the precipitate formed, the suspension having a pH. of from 4.0 to 5.0. The composition may also comprise sugar, gum tragacanth, saccharin, glycerine, perfumes and/or flavours.
Patent GB-514116-A (GB)
Title: Improvements in the manufacture of polymerisation products
IPC: C08F14/00
Filed: 1938-04-27
Abstract: 514,116. Polymerization products. WACKER GES. FUR ELEKTROCHEMISCHE INDUSTRIE GES., A. April 27, 1938, No. 12576. Convention date, April 28, 1937. Samples furnished. [Class 2 (iii)] High molecular weight polymers are prepared from monomeric vinyl compounds containing a vinyl group in which a doubly linked carbon atom carries only one halogen atom bya process wherein the vinyl compound is first treated with an alkali and subsequently polymerized at a temperature not exceeding 40‹C., the polymerization being interrupted when not more than 70 per cent. of the monomer has been polymerized. The treated vinyl compound may be polymerized in conjunction with other types of polymerizable compounds such as vinyl esters, vinyl ethers, acrylic, methacrylic and itaconic acids and their esters. In examples : (1) vinyl chloride, washed with caustic soda with or without the addition of vinyl acetate is polymerized in aqueous emulsion; (5) a mixture of chlorobutadiene and vinyl chloride is washed with aqueous caustic soda and polymerized; (6) chlorobutadiene, washed with caustic soda, is polymerized with or without the addition of vinyl acetate, in aqueous emulsion. Samples have been furnished under Sect. 2 (5) of polymerization products of vinyl chloride that has been treated with caustic soda, sodium carbonate or piperidine.