baber/WOPTO huggingface dataset:
Patent GB-173271-A (GB)
Title: Variable speed gear
IPC: F16H9/12
Filed: 1920-08-27
Abstract: 173,271. Tacchi, P. G. Aug. 27, 1920. Expanding-pulley gearing comprises a double intermediate pulley movable in the line of the driving and driven belts to vary the speed and movable laterally as a whole to keep the belts in the same planes, the middle double flange H being controlled or moved positively, that is independently of the action of the belts. The pulley as a whole is adapted to be turned about a pivot B by an operating-lever A. The lever A is guided in a fixed oblique quadrant Q so as to move laterally a sleeve E carrying the outer flanges F, which are secured one to the other. The pivot spindle B partakes of this lateral movement. A lever M turning about a fixed pivot o engages at its upper end with the spindle B and at its lower end is connected through a link L, disc K, and rods J to . the middle flange H, which is thus moved in, unison.
Patent GB-481734-A (GB)
Title: Improvements in or relating to roller skates
IPC: A63C17/22
Filed: 1936-09-11
Abstract: 481,734. Wheel tyres. SHAW, S. P. Sept. 11, 1936, No. 24867. Drawings to Specification. [Class 144 (ii)] [Also in Group XV] Tyres for a four-wheeled roller-skate may be made with tread areas of harder wear-resistant material (for example, vulcanized rubber, vulcanite, boxwood, compressed fibre, metal) alternating with areas of soft material such as soft rubber. A tyre may be built up of alternate discs of hard and soft material, or an inlaid construction may be adopted. The tyre may be moulded around a wheel rim provided with a central rib, or the flanges of the rim may be pressed-up to grip the tyre. Securing-bolts may pass through a hard rubber rib on the tyre and through metal rings. Reference has been directed by the Comptroller to Specifications 13493/96, [Class 132], 12134/10, [Class 132 (i)], and 359,287.
Patent GB-969599-A (GB)
Title: Cooling of high-power thermionic valves
IPC: H01J19/74
Filed: 1962-06-29
Abstract: 969,599. Cooling electric discharge tubes. SIEMENS & HALSKE A.G. June 29, 1962 [June 30, 1961], No. 25002/62. Heading H1D. A high-power thermionic valve includes a tubular anode electrode 1, the wall of which bounds at least part of an evacuated enclosure of the valve and has a plurality of axial bores 2 extending therethrough forming passages for cooling liquid capable of evaporation during operation of the valve, wherein to prevent distortion of the anode electrode by mechanical stresses that may arise in the wall as a result of temperature differences occurring between the inner and outer surfaces of the wall and/or between adjacent ones of the cooling bores, a plurality spaced circumferentially, Fig. 1, and/or axially, Fig. 5, extending radial slots 5 are formed in the wall and each open at its outer surface, and wherein any such circumferential slots are continuous whilst any such axial slots extend the axial length of the wall. The slot may open into the bores, the width of the slots with respect to the surface area dimensions of the bores being such that the slots are too narrow to reduce substantially the evaporative cooling effect that would occur in the absence of the slots. Alternatively, the slots may be disposed between each adjacent bore, Fig. 3 (not shown).
Patent GB-1074266-A (GB)
Title: Process for securing a metal collar or grummet in the orifice of a methal barrel
IPC: B65D39/08
Filed: 1965-06-14
Abstract: 1,074,266. Making hollow-ware; jointing by stamping. S.A.TRAVAIL, MECANIQUE DE LA TOLE. June 14, 1965 [June 22, 1964], No. 25054/65. Headings B3A and B3Q. [Also in Division B8] A method of securing a metal bunghole bush (4, Fig. 2), in the bunghole of a metal barrel comprises deforming a flange (3) on the barrel to form a circumferential neck (7) extending into a channel (5) in the bush where it compresses an elastic sealing ring (6). The flange may extend over the end of the bush (Figs. 5 and 6), and retain a further seal (12), or another seal (14, Fig. 8), may be located beneath the rim of a bung (15) engaging screwthreads in the bush. A cap (17) may enclose the bung and include a seal (16) between the neck (7) and a nesting neck formed in the cap.
Patent GB-843071-A (GB)
Title: Improvements in or relating to electric initiators
IPC: F42B3/12
Filed: 1958-08-05
Abstract: 843,071. Electric blasting detonators. DU PONT DE NEMOURS & CO., E. I. Aug. 5, 1958 (Sept. 9, 1957], No. 25116/58. Class 9(1) An electric detonator comprises an open-ended tube 1 surrounding a thickwalled rigid cylinder 2 having an axial bore filled with between 0.025 and 0.65 grains of lead azide with a distribution density of 2.5 to 60 grains per foot, the tube being closed at one end by the electric ignition assembly which on passage of a current fires the lead azide. The lead azide may be mixed with PETN or nitromannite. The cylinder is made of rigid material which does not react with the lead azide e.g. lead, aluminium or steel or polymerised materials, and preferably, the ratio of the outer to the inner diameter is two or more. The tube 1 may be made of metal or plastics. A thin metal capsule may be fitted over the outer end of the cylinder 2. The ignition assembly may comprise a bridgewire 4 connecting leads 5 extending through a resilient plug 6, the wire 4 being embedded in an ignition composition either in the form of a bead 8 or a loose charge such as a boron and red lead mixture. Alternatively a bridgewire may be used, which volatilizes on the passage of a large current with the ejection of particles of hot metal and so ignites the lead azide. Ignition may be also by a spark produced between the ends of the leads embedded in the ignition composition. The detonator is crimped over the free end of a detonating fuze cord 9. The ignition composition may be a mixture of silicon and red lead, manganese and bismuth trioxide, lead sulphocyanate with potassium chlorate and calcium silicide, bismuth with selenium and potassium chlorate, or diazodinitrophenol and potassium chlorate. A single compound such as lead styphnate, tetrazene or a loose charge of lead azide may also be used as the ignition charge. Specification 564,211 is referred to.
Patent GB-438543-A (GB)
Title: Improvements in or relating to tea bags
IPC: B65D85/808
Filed: 1934-08-31
Abstract: 438,543. Tea-infusers. HIGGINS, C., General Delivery, Jamaica, New York, U.S.A. Aug. 31, 1934, No. 25130. [Class 129] A bag 1 for holding tea leaves to facilitate infusion has extensions 2 at an angle to the main part to prevent the tea leaves from falling into a heap in the bottom of the bag. The bag is preferably T-shaped and has a cord 4 with a metal tag 6 for handling, which is also preferably T-shaped.
Patent GB-1473318-A (GB)
Title: Solution of 1,3-bis-2-carboxychromon-5-yloxy-propan-2-ol  or salts thereof
IPC: A61K9/00
Filed: 1973-05-25
Abstract: 1473318 Pharmaceutical compositions FISONS Ltd 15 May 1974 [25 May 1973 (2) 12 July 1973] 25237/73 25238/73 and 33325/73 Addition to 1399834 Heading A5B Pharmaceutical compositions comprise a substantially clear sterile aqueous solution containing, as active ingredient, a therapeutically useful proportion of 1, 3-bis (2-carboxychromon-5-yloxy)-propan-2-ol, or a pharmaceutically acceptable salt thereof, and comprising an additional compound which is therapeutically useful in the eye, or an additive to increase the viscosity or to prolong the action of the active ingredient, or wherein the concentration of "metal ions" is less than 20 ppm, or wherein the concentration of Mg<++> is less than 0.2 ppm, or comprising dextrose or mannitol, or comprising sodium citrate/citric acid, or boric acid/sodium borate, or containing a concentration of chelating or sequestering agent in the range of from 0.005 to 0.1 % w/v. The additional therapeutically useful compounds include anti-histamines e.g. antazoline or diphenhydramine hydrochloride; anti-inflammatory agents e.g. prednisolone; antibacterials e.g. sulphacetamide and propamidine isethionate; antibiotics e.g. tetracycline, chloramphenicol, neomycin and fromycetin; antimycotics e.g. nystatin and amphotericin B; decongestants e.g. phenylephrine; anti-viral agents e.g. idoxuridine and vasoconstrictors e.g. oxymetazoline. The viscosity increasing additive may be methyl cellulose, hydroxypropylmethyl cellulose hydroxy propyl ethyl cellulose, hydroxy ethyl cellulose, ethyl hydroxy ethyl cellulose, a polyvinyl alcohol, gelatin, polyvinyl pyrrolidone, a polyethylene glycol, a propylene glycol and/or glycerin. The compositions may be used in the treatment of allergic conditions of the eyes and nose. Reference has been directed by the comptroller to Specification 1144905.
Patent GB-364535-A (GB)
Title: Improvement in scraper mechanism for sedimentation tanks
IPC: B01D21/18
Filed: 1930-08-25
Abstract: 364,535. Gravity-separation apparatus. DORR CO., 247, Park Avenue, New York, U.S.A. Aug. 25, 1930, No. 25385. Convention date, Aug. 23, 1929. [Class 111.] Apparatus for removing solid matter from the settling chambers of sewage-treating plant comprises a pivoted scraper, suspended from a carrier which is reciprocated by a motor mounted thereon, along the top of the chamber, means being provided for raising the scraper from its operative position automatically as the carrier reaches the end of the scraping movement. With the apparatus shown the settled matter is pushed by a scraper 15 into a trough 14 at one end of the chamber, from which it is discharged by a conveyer 16. The scraper is supported by arms 18 connected to levers 48 with counterweights 50 on a shaft 46 supported by a carriage 17. The carriage is moved on rails over the tank by an electric motor receiving current from overhead wires 34. The inclination of the arms 18 is determined by springs 56 which allow the arms to lift when the scraper encounters exceptional obstruction. The switch of the motor is reversed automatically and the levers 48 turned to raise or lower the arms 18, when rollers 70 on arms fixed to the shaft 46 engage stops 68 at either end of the travel. The motion of the levers 48 is limited by dashpots 52 with plungers 53.
Patent GB-1152369-A (GB)
Title: Improvements relating to Pneumatically Delayed Electromagnetic Relays
IPC: H01H50/86
Filed: 1966-06-07
Abstract: 1,152,369. Electromagnetic relays. LA TELEMECCANICA ELETTRICA Ing. AMATI & GREGORINI S.p.A. 7 June, 1966 [7 June, 1965], No. 25398/66. Heading H1N. Each set of contacts of a relay is controlled by an individual pneumatic time delay. As shown, cranked levers 3, 4 are normally in engagement with spring biased armature 1b and with respective plungers 9, 10 of pneumatic time delay units 11. On energization armature 1b is raised moving plungers 9, 10 against springs 13, 14. Contact sets (18) are actuated by each plunger through respective pivoted members (15, 16) (Fig. 2, not shown). The actuation of the contact sets on de-energization is delayed by the pneumatic devices 11, which have separate adjusting screws 12.
Patent GB-534575-A (GB)
Title: Improvements in or relating to indirectly heated cathode structures for electron discharge devices
IPC: H01J1/22
Filed: 1939-09-08
Abstract: 534,575. Indirectly heated cathode structures. STANDARD TELEPHONES & CABLES, Ltd., and GOODCHILD, F. D. Sept. 8, 1939, No. 25426. [Class 39 (iii)] An indirectly heated cathode structure for an electron discharge device comprises two heater wires, A, B which are separately coated with refractory insulating material, and then twisted together and coated with a common outer refractory insulating coating C. The wires may be connected at D and the element folded into' two or more parts for insertion into a tubular cathode. Specification 453,154 is referred to.
Patent GB-443785-A (GB)
Title: Improvements relating to cooking devices
IPC: A47J36/38
Filed: 1934-09-04
Abstract: 443,785. Frying-ranges &c. withdrawing objectionable fames ; covers. ROSS, C. E., and PERKS, T. E., (trading as ROSS & PERKS), 166, Piccadilly, London. Sept. 4, 1934, Nos. 25474/34, 32284/34, 5482/35, and 8107/35. [Class 126] In a stove, e.g. for cooking fish and chipped potatoes, having a food container 12 surrounded by inner and outer casings 9, 7, with an inner heating chamber 15 between the food container and inner casing, and an outer chamber 16 between the two casings 7, 9, through which cooking fumes are withrawn from the top of the container downwardly to a suction chamber 1, the top edge of the outer casing 7 is located slightly above the top edge of the food container and is provided with a flange 14 extending inwardly somewhat over the top of the food container which is open to the atmosphere at the top at least adjacent to this flange, so that atmospheric air flows downwardly and radially outwardly over the whole top edge of the container 12 into the chamber 16. The inner casing rests on a support 8, which is provided with apertures for the flow of air from the chamber 16. The hot gases from a gas, coke or oil heater in the chamber 15 may be withdrawn through the apertures 17 to the suction box 1 with the fumes of cooking, or they may pass out through a separate flue. The suction is controlled by an apertured conical member 24 which may be raised or lowered by an arm 23 which co-operates with a ramp. To equalize the suction the inner casing may be arranged eccentrically so that the chamber 16 is more restricted on the side above the exhaust outlet from the box 1. A passage 19 from the inner chamber through the outer chamber may be provided. The parts of the stove fit one another so that they are automatically centred. when placed in position. The cover comprises a hopper 26<1> and a cone 28<1> carried respectively by arms 30, 31 pivoted at 32, 33. The arm 31 has a cam 34 which co-operates with an extension 35 on the arm 30 so that when the arm 31 is horizontal the arm 30 is horizontal also. In this position, air can be drawn between the hopper 26<1> and the flange 14. If the arm 31 and cone 28<1> are raised, the cam 34 allows the arm 30 to fall until the hopper 26<1> rests on the flange 14. If the arm 30 and hopper 26<1> are raised, the cone 28<1> and arm 30 are raised with them. A counterweight 36 facilitates this movement. In another form of cover, the hopper rests on the cone, which is supported by a counterweight. In this case, when it is desired partly to uncover the food container, the cone is lowered so that the hopper rests on the flange.
Patent GB-735273-A (GB)
Title: Improvements in or relating to horticultural hoes
IPC: A01B1/08
Filed: 1953-09-15
Abstract: 735,273. Garden hoes. LITTLER, S. Dec. 18, 1953 [Sept. 15, 1953], No. 25475/53. Class 6 (2). A garden hoe, of the kind having a blade 3 formed of a flat strip mounted to have a rocking movement relative to the handle, has the blade formed with upturned ends 4 pivoted in slots 5 in the arms of a carrier 2 secured to the handle, the ends of the slots serving as stops to limit the movement of the blade. The ends of the arms 2 are bent so that in normal position of use they lie substantially parallel to the ground. The holes for the pivot pins 6 are preferably made nearer to one edge of the blade than to the other in order that, by reversal of the blade, an alteration in the angular disposition of the blade during use can be obtained.
Patent GB-939121-A (GB)
Title: Hermetic rotatable and slidable remote handling device
IPC: B25J1/04
Filed: 1962-07-03
Abstract: 939,121. Handling radio-active material. EUROPEAN ATOMIC ENERGY COMMUNITY, EURATOM. July 3, 1962 [July 4, 1961; Oct. 24, 1961], No. 25528/62. Class 39 (4). A tool mounted on a wall by a universal joint 1 comprises an outer non-rotatable tube 4 slidable in a sheath 2 by a handle 7, a toolholder body part 16 being releasably secured to a bush 19 rigid with the tube, a bellows B being sealed between the body part 16 and the wall 15 of a hot cell. A tube 11 rotatable within the tube 4 by a handle 6 has a square section by which it is rotatably connected to a tubular extension 22 of a tool-holder body part 23, bearings 20, 21 in the part 16 supporting the tube 11 and extension 22. A tool holder 24 is releasably connected to the body part 23 by a spring-biased stud device 30. The tool, e.g. a gripper, is operated by a conical pusher 25 controlled by rods 12, 12a operated by a trigger 8 A bellows 29 seals the rod 12a to the part 23 and sealing-rings 28 are provided around the extension 22. Thus the tool may be moved linearly by sliding the tube 4, may be moved angularly by rotating the tube 11 and may be universally displaced by the joint 1. In order to remove the tubes 4, 11 and rod 12 the holder 24 is detached by pressing finger 31 and the part 16 is withdrawn by the handle 7 into a socket support 5 carried by the ball 1. The socket 5 causes pawls 17 carried by the part 16 to be released from the bush 19 so that after removal of the sheath 2 from the ball the tubes 4, 11 and rod 12 may be withdrawn.
Patent GB-635890-A (GB)
Title: Improvements in or relating to turbine and like rotors
IPC: F01D5/08
Filed: 1947-11-28
Abstract: 635,890. Turbine rotors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and GRANTHAM, C. Nov. 28, 1947, No: 25538/49. Divided out of 631,152. [Class 110(iii)] A turbine rotor is built up of disc laminae. The discs 2 are assembled on a sleeve 3 and clamped by a nut 28. The assembly is clamped between plates 6, 13 by bolts 7 having a tight fit in holes in the discs. Cooling air from a fan 22 passes through holes 21 to spaces 20 separated by radial ribs and thence to channels below the blade roots and the blade platforms. Specifications 628,036, 631,152 and 631,163 are referred to.
Patent GB-1219862-A (GB)
Title: Apparatus for doppler-inertial navigation systems
IPC: G01C19/02
Filed: 1968-05-29
Abstract: 1,219,862. Radar. SINGER-GENERAL PRECISION Inc. 29 May, 1968 [18 July, 1967], No.25810/68. Heading H4D. [Also in Division G1] In an airborne Doppler-inertial navigation system there is an alignment error between the Doppler radar aerial and the (separated) inertial platform produced by bending of the aircraft. A known directional gyroscope directly mounted on or near to the aerial and approximately aligned with true north measures the true heading of the aircraft, an orientation error and its own north-alignment error. An error signal is produced proportional to the cross-track velocity error between the gyroscope and the inertial platform and is fed back to precess the spin axis of the directional gyroscope. Since the latter axis is effectively rotated into alignment with the reference axis of the inertial platform, the north-alignment error in the output of the directional gyroscope is cancelled and it becomes slaved to true north; and the output of the directional gyroscope comprises only a measure of the true heading angle plus the orientation error, and can resolve the Doppler system's ground track velocity into true north and true east components. Transient errors in the Dopper velocity resolution are thereby avoided. A stellar tracker may be on the inertial platform.
Patent GB-1388298-A (GB)
Title: Device for amphibious use of wheeled land vehicles
IPC: B60F3/00
Filed: 1972-06-02
Abstract: 1388298 Amphibious vehicles W HOPFENSITZ 2 June 1972 25812/72 Headings B7A and B7V A buoyant frame 23, 24 is arranged to support a motor vehicle in such manner that its driving wheels are connected through gearing to four endless tracks 7 mounted at the free ends of parallelogram linkages 5. Steering movements of the vehicles wheels are transmitted through a linkage (not shown) to all four trucks 7. In use the vehicle is driven on to power take off rollers 2, the linkages 5 are then lowered to lift the frame off the ground, the tracks are then operated to propel the apparatus into the water, after which the linkages 5 are raised and the apparatus is propelled through the water by ribs on the tracks. In a modification (not shown) the chain transmission 8-12 is replaced by shafts and bevel gears.
Patent GB-387033-A (GB)
Title: Improvements in or relating to snap-action electric switches of the enclosed type
IPC: H01H21/38
Filed: 1931-09-15
Abstract: 387,033. Snap-action switches. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Sept. 15, 1931, No. 25819. [Class 38 (v).] In an ironclad switch the handle d is keyed to a sleeve e having a key feather e<1> which drives with lost motion a toggle rocker f<1> on which is mounted a pin f<4 >which has a lost-motion drive with a plate g fixed on the contact spindle c, Thus the contact spindle remains still while the dead-centre spring is being strained and over runs the handle when the spring has passed the dead centre. A weak coil spring h is connected between the pin f<4> and plate g to take up the lost motion when the switch is open. Specifications 321,416, 321,428, 327,632, [all in Class 38 (v), Electric switches &c.], 346,502, 368,338, and 370,945 are referred to.
Patent GB-1316879-A (GB)
Title: Overhead conveyors
IPC: B66C7/00
Filed: 1970-05-28
Abstract: 1316879 Toothed gearing VON ROLL AG 28 May 1970 [28 May 1969] 25849/70 Heading F2Q A curved gear rack for an overhead conveyer comprises a curved tooth support member 1 having spaced bores 2 which receive cylindrical pins 4 on which are secured, by press-fitting, welding or bonding, teeth 10 in the form of truncated cones 3. Alternatively, the cores 3 may be formed integrally with the support member 1. In a modification, teeth 11, Fig. 3, are tapered and of ellipse-like cross-section. In a further modification, the teeth consist of pins 17 of barrel-shaped or spherical configuration, Fig. 4.
Patent GB-459776-A (GB)
Title: Improvements in or relating to colour spraying heads
IPC: B05B7/08
Filed: 1936-09-23
Abstract: 459,776. Spray-producers. GELLNER, L., 67, Gneisenaustrasse, Berlin. Sept. 23, 1936, No. 25856. Convention date, Sept. 24 1935. [Class 69 (iii)] A paint sprayer of the kind in which a central paint nozzle a surrounded by an air nozzle b and provided with closable flattening nozzles c<1>, c<2> is surrounded with a ring of additional air nozzles d ... l so arranged that in forming a flat spray all the additional air jets enter the colour spray while in the formation of a round spray only certain of these air jets enter the spray without completely mixing with it. For this purpose the additional nozzles are formed of different sizes those d, h in the plane of the flattening nozzles being greater than the other, the smallest f k being at right angles to the flattening nozzle.
Patent GB-244691-A (GB)
Title: Improvements in or relating to optical pyrometers
IPC: G01J5/08
Filed: 1925-10-16
Abstract: 244,691. Siemens & Halske Akt.-Ges. May 29, 1925, [Convention date]. Pyrometers.-An optical pyrometer is provided with a tele-objective in order to increase the size of the image when making observations at a distance from the heated body. In the form shown the pyrometer 1 carrying the lamp 2 to be observed, together with the heated body, through an eyepiece 4, is provided with an ordinary objective 6 and with a removable extension carrying lenses 8, 9, which are such as to form, in combination with the objective 6, a tele-objective.