baber/WOPTO huggingface dataset:
Patent GB-546159-A (GB)
Title: Improvements in drawing pins or like pin units for insertion in or attachment to a board or other surface
IPC: B43M15/00
Filed: 1941-04-23
Abstract: 546,159. Drawing-pins; hooks. LEVIN, A. April 23, 1941, No. 5212. [Class 89 (ii)] A member such as hook with a pin shank or a drawing pin is formed from a length of wire with a bent or coiled head extension in a plane substantially perpendicular to the shank. The hook, Figs. 1 and 2, has two pointed shanks a bent at right angles to form parts a' leading to coiled parts a<2> connected by a hook a' for supporting a picture. In a modification the points a are more widely spaced and two hooks a<4> are connected by a central bar in the plane of the parts a', a<2>. In the modification Fig. 4, the part a' which may have one or. more complete turns forms the head of a drawing-pin. In a further modification the end of the part a<2>, Fig. 4, is extended back across the diameter of the head parallel to a<1> and is then formed into a hook, e.g. for supporting a ticket.
Patent GB-1435411-A (GB)
Title: Air-flow controller
IPC: F24F11/04
Filed: 1974-02-05
Abstract: 1435411 Valves DANFOSS AS 5 Feb 1974 [6 Feb 1973] 05276/74 Heading F2V A valve for an air duct comprises a closure member 13 pivotably mounted on a lever 12 together with a balancing weight 10 and a biasing weight 14, 15 which closure member is moved against the biasing weight by bellows fixed under a plate 7 also attached to the lever. The weights 14, 15 are movable along the arms 12 of the lever and are of different values to facilitate a coarse and fine adjustment. The weights may be locked in position and the arms are graduated to indicate the position of the weights.
Patent GB-562400-A (GB)
Title: A process for the production of industrial or power gases
IPC: C10J1/213
Filed: 1942-09-24
Abstract: 562,400. Carburetted water gas ; oil gas. STEINSCHLAEGER, M. Sept. 24, 1942, No. 5370/44. Divided out of 562,375. [Class 55 (ii)] In the production of heating or power gases, such as carburetted water gas and oil gas, a fuel bed is subjected to alternate blowing and gas-making periods, and the heat of the blow gases is used to heat a regenerator, whereafter, steam and/or carbon dioxide with or without a fluid fuel, or with or without a mixture of water gas, oil vapour, and cracking products is passed through the regenerator, and the sensible heat of the gases leaving the regenerator is utilized, with or without further heating and with or without the addition of other hot gases to effect evaporation or cracking of oil, tar or the like mixed with said gases for carburetting the same. The gas thus obtained may be used to drive an internal-combustion engine, and the sensible heat of the exhaust gases may be used to evaporate and crack oil or tar so as to carburet the exhaust gases.
Patent GB-326962-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L7/02
Filed: 1929-02-19
Abstract: 326,962. Milner, A., Brooks, K. D., and Milner, A. C. Feb. 19, 1929. Cylinders receiving liquid fuel.-The engine works on the following cycle:-(i) induction of charge, (ii) compression and ignition, (iii) power, (iv) compression of cylinder contents and injection and ignition of fresh fuel, (v) power, and (vi) finally exhaust. The first charge may be a weak combustible mixture of air and petrol, which is ignited by a sparking plug or it may be air supplied by a pump; liquid fuel is injected into this air and ignited by a hot bulb or by the heat of compression. The second ignition is due to the heat of compression. For a multi-cylinder engine one rotary valve 6 controls for all the cylinders the admission of air under pressure from the manifold 12 and the exhaust to the outlet 10. This exhaust flows over and heats the unjacketed parts 11 of the combustion chambers on to which fuel from the nozzles 40 in each cylinder is directed. The valve 6 is held in its seating and packed by spring collars 22. The valve 6 is given a step-by-step movement by a geneva stop gear and rotates once for each com. plete cycle. The liquid fuel and injection air are supplied through a distributing valve consisting of a hollow fixed spindle 25, a surrounding fixed sleeve 29 spaced from the spindle, a rotating ported sleeve 34, and ported collars 37. The fuel enters the space 33 between the spindle and sleeve 29 and air is supplied to the spindle interior; when the ports 26, 31, and 39 in the spindle, sleeve and collar register with one or other of the ports 38, 38<1> in the rotating sleeve a fuel injection takes place. The two ports correspond to the two fuel injections per cycle.
Patent GB-1122205-A (GB)
Title: Preparation of 1,5,9-cyclododecatriene
IPC: C08F4/70
Filed: 1966-02-08
Abstract: 1,5,9-Cyclododecatriene is prepared by trimerizing 1,3-butadiene in a solvent with the aid of a catalyst composition comprising the combination of TiCl4, AlCl3, and an alkyl aluminium compound, ferric chloride being added to the catalyst.  The alkyl aluminium compound is preferably either diisobutyl aluminium hydride or tri-isobutyl aluminium.
Patent GB-1098610-A (GB)
Title: Lighting systems for road vehicles
Inventor: HICKS HARRIS VERNON
IPC: F21V14/08
Filed: 1965-07-21
Abstract: 1,098,610. Photo-electric headlamp dipping system. JOSEPH LUCAS (INDUSTRIES) Ltd. July 21, 1965, No. 5569 / 67. Divided out of 1, 098, 608. Heading G1A. In a vehicle headlamp dipping arrangement controlled by a photo-cell in response to light from an oncoming vehicle, a filter removes from the headlamp beams a range of wavelengths, e.g. red or infrared, to which the photo-cell is exclusively sensitive. The description is similar to Specification 1, 098, 608.
Patent GB-494644-A (GB)
Title: Cathode ray tubes
IPC: H01J21/36
Filed: 1938-02-22
Abstract: 494,644. Cathode-ray tubes. LORENZ AKT.-GES., C. Feb. 22,1938, No. 5585. Convention date, Feb. 22, 1937. [Class 39 (i)] In order to secure the cathode in its correct position with respect to the control electrode and the remainder of the electrode system a closed tubular cathode with emissive substance on its end is rigidly secured in a cylindrical body which fits closely into a hollow cylinder and closes one end thereof, the other end being covered by a perforated diaphragm forming the control electrode ; the hollow cylinder is rigidly mounted in the electrode system. Fig. 1 shows a cathode 2 fitting into a flared opening into an insulating cylinder 1, which fits closely in a metal cylinder 12 mounted in discs 13 secured to the supporting rods 9 of the electrode system. The control electrode consists of a disc 6, formed with a flange fitting into a groove in the cylinder 1, and provided with a lug 8 welded to one of the discs 13 ; or the electrode may be fixed to the cylinder 12. Fig. 3 shows an arrangement in which the cylinder 1 is of metal of low heat conductivity and is seated by a flange 16 on a cylinder 18 welded to a disc 17 forming the control electrode, the cathode 2 being mounted on an insulated tube 15 secured to the cylinder 1.
Patent GB-614305-A (GB)
Title: Improvements in and relating to photo-flash flares
IPC: F42B12/42
Filed: 1944-03-25
Abstract: 614,305. Photo-flash flares; flash-light projectiles; fuzes. FINCH, G. I. March 25, 1944, No. 5585. [Classes 9 (i) and 9 (ii)] In a photo-flash flare of the kind in which a light-metal powder is ignited and dispersed by an explosive, the explosive is a high explosive and the powder comprises a proportion of between 15 and 100 per cent of particles passing a 120 British Standard screen. The weight of explosive is not less than one-tenth the weight of metal powder. Fig. 2 shows a flare for dropping from aircraft and comprising a lightmetal casing 2 with tail fins 1 filled with lightmetal powder 10 surrounding a core 8 of high explosive in a light casing 9 of paper or metal. The arrangement shown gives a horizontal sheet of light-emitting particles. The explosive is preferably of the aluminized type, e.g. Al: TNT 30: 70. The light-metal powder may be aluminium, magnesium, or mixtures or alloys of these, and is preferably in flake form, having a high specific surface. As shown, a charge 11 of carbonaceous or organic powder such as pitch or flour may be disposed above the metal powder and surrounding an extension of the explosive core. Ignition is initiated by a barometric fuze 3, detonator 5 and C.E. gaine 6. The explosion ignites all the metal powder substantially simultaneously by the rise in temperature due to the adiabatic compression of the air trapped between the particles which thus .all burn rapidly, whereas the powder 11 burns comparatively slowly and with a low intensity flame, thus screening the main light from the aircraft camera. In a modification, Fig. 3, a small pilot charge 18 with explosive core 23 may be located above the main charge 10 of metal powder, a metal plate 19 and steel washer 20 being interposed to protect the main charge from the explosion of the core 23. The pilot charge is ignited a short time before the main charge by a length of fuze 15 from the barometric fuze 3, the fuze 15 being shorter than that leading to the detonator 6 of the main charge. The pilot flash is utilised to open the camera shutter of the aircraft in known manner. A simple flare with a " safety " fuze instead of a barometric fuze for ground photography, similar to the aerial flares, is .described and an arrangement of string-like fuzes by means of which a number of such flares may be successively ignited at short intervals after an underwater explosion to photograph the results of this explosion. Specific examples of flares are described.
Patent GB-621448-A (GB)
Title: Improvements in contact lenses
IPC: G02C7/04
Filed: 1947-02-26
Abstract: 621,448. Contact lenses. WATSON, R. K. Feb. 26, 1947, No. 5606. [Class 97 (i)] In a contact lens, the scleral rim comprises a frustro-conical portion which merges into a portion, the cross-section of the inner surface of which is a hyperbolic curve. As shown, the contact lens comprises a de-centred corneal portion a adjoining which is the frustro-conical portion b, having an angle d. The latter portion merges into a portion c, the radius of curvature of the inner hyperbolic surface of which decreases towards the lens edge. The contact lens may be circular or oval when viewed in plan. Reference has been directed by the Comptroller to Specification 634,178.
Patent GB-692690-A (GB)
Title: Improvements in or relating to rotary elastic fluid operated motors
IPC: F01C1/344
Filed: 1952-03-04
Abstract: 692,690. Rotary engines. WILLIAMS, G. H. T. March 4, 1952. No. 5633/52. Addition to 673,051. Class 110(ii) The engine described in the parent Specification 673,051 is modified by having a throttling plug 27 inserted in the duct 24 which supplies compressed working fluid to the undersides of the vanes 6. The amount of fluid flowing inwards through a hole 28 is about sufficient to make up for losses past the vanes-in their slots 5.
Patent GB-397522-A (GB)
Title: Improvements in and connected with weighting machines
IPC: G01G1/26
Filed: 1932-02-25
Abstract: 397,522. Weighing-apparatus. COPE & COPE, Ltd., 100, King's Road, Reading, and HEMMING, G. H., Little Melton Vicarage, Norwich. Feb. 25, 1932, No. 5658. [Class 143.] A balance particularly adapted for the weighing of numerous small articles such as eggs, comprises a scale-beam b of light construction having a weigh-pan or the equivalent h at one end and an adjustable counterbalance weight d at the other end, and having connected with it a pointer l movable over a chart m, and a damping arm n carrying a paddle o movable in a bath p containing oil or other liquid. The liquid bath is adjustable vertically by the arrangement of its supporting bolts q within slots in the frame a<1>. Adjustment of the bath to definite damping positions is facilitated by providing the vane with a series of constrictions to indicate the extent of its submersion in the liquid.
Patent GB-284486-A (GB)
Title: Improvements in drinking appliances for animals
IPC: A01K7/04
Filed: 1927-03-02
Abstract: 284,486. Rae, G., and Ewing, T. March 2, 1927. Drinking - appliances for animals. - The drinking bowls 1, in a system for supplying water to animals in which several bowls are connected to a supply tank 11 having a float valve 12 or other means whereby a constant head of water is maintained, are formed quadrantal in horizontal cross section so as to fit in the angles of the walls of the stalls and the supply to each bowl is effected through a passage 8 in the bosom of the angular portion thereof. The rectangular sides 2, 3 of each bowl are formed with integral lugs 4, 5 by which the bowls are secured to the walls. A boss is formed on each rectangular side to engage the wall and to steady the bowl. A supply passage 8, provided at the top with a removable cap 16, passes up the angle of each bowl and communicates through an opening 13 with the interior. The opening 3 is provided with a non-return valve 19, Fig. 6. The bowls may be of enamelled iron, galvanized iron, or earthenware.
Patent GB-851707-A (GB)
Title: An electrical control device utilising current comparison
IPC: G05B1/02
Filed: 1956-02-24
Abstract: 851,707. Systems for supplying and controlling consuming devices. HACKBRIDGE & HEWITTIC ELECTRIC CO. Ltd., and SOMERVILLE, F. B. May 21, 1957 [Feb. 24, 1956], No. 5835/56. Class 38 (4). An electrical control circuit for diverting a supply current 1, 2, Fig. 1, from a load 9 until the Current exceeds a determined value comprises a rectifier 5 and a bias circuit 6, 7 connected across the load 9, the bias and supply currents are in opposition hence no current will flow through load 9 until the bias current is exceeded. To prevent leakage currents flowing through the load an additional rectifier 8, Fig. 4, may be connected in series. The same Figure shows rectifiers 18 arranged for connection to a 3-phase supply 15-17. Other circuits are described in which the current may originate from two or more sources. The circuit may be used for the control of a servo mechanism, a mercury arc rectifier, a generator, warning or relay device.
Patent GB-540103-A (GB)
Title: Improvements in and relating to electrically heated tank furnaces for glass
IPC: C03B5/03
Filed: 1940-04-02
Abstract: 540,103. Electric furnaces. PILKINGTON, BROS., Ltd. (Soc. Anon des Manufactures des Glaces et Produits Chimiques de St.-Gobain, Chauny & Cirey.). April 2, 1940, No. 5913. [Class 39 (iii)] In a tank furnace for glass, heated by electrodes 3, 4 below the glass surface, extending across the tank at an angle to the direction of flow of the glass along the length of the tank, the inclination of the electrodes is such that the length 5 of the current path at the centre is different from the length 6 near the walls. The heating effect near the walls is thereby increased, whereby the cooling effect of the walls is counteracted, and a more uniform temperature obtained. In an alternative, the length 5 may be less than the length 6 so that the glass temperature near the walls may be kept lower. In Fig. 3, two charging ends 7 lead to a single channel 8, and the electrodes 9, 10, 11 are connected to a 3-phase supply. The current paths 12 are approximately equal, so that the glass temperature at the junction is kept uniform. The two parts of each electrode may touch at the centre, or may be slightly separated.
Patent GB-267702-A (GB)
Title: Improvements in rotary internal combustion engines
IPC: F02B53/00
Filed: 1926-03-03
Abstract: 267,702. Timbrell, C. M. March 3, 1926. Fixed-abutment type; working-fluid supply; packing drums and vanes.- The rotor of a radially-sliding vane engine has formed therein enclosed transfer passages which extend between consecutive vanes and into which the charge is forced from the compression space 12 and there trapped before admission to the firing space 13. The vanes are packed laterally with spring-pressed T-pieces 14. End packing plates 18 for the rotor are formed with studs 19 extending into recesses 20 in the casing end covers, where they are acted on by adjustable springs 22 and with an annular flange 21 to carry a ring 17. The vane pockets have a vent passage 28 to admit the pressure behind the vanes.
Patent GB-586005-A (GB)
Title: Improvements in and relating to processes for proofing or rendering fibrous materials water repellent
IPC: D06M13/02
Filed: 1944-03-31
Abstract: 586,005. Waterproofing. BRITISH RUBBER PRODUCERS' RESEARCH ASSOCIATION, and ROBERTS; K. C. March 31, 1944, No. 5990. [Class 140] Fibrous materials, including paper, yarn in hanks and fabrics of cotton, wool, or of artificial materials are waterproofed by treatment with a solution, emulsion or dispersion which contains rubber or a specified rubber-like substance and a substantial proportion of a water soluble metallic salt of a higher unsaturated aliphatic acid as wetting agent; drying the material so treated, washing out the wetting agent and again drying, to leave a proofing deposit. The waterproofing agent may be natural rubber latex, vulcanized or unvulcanized, or an artificial aqueous dispersion of natural or synthetic rubber with which an aqueous solution of the wetting agent is mixed; or a solution in an organic solvent of rubber, synthetic rubber, resinified or cyclised rubber, with which the solution of wetting agent is emulsified. The wetting agent may be sodium oleate or linoleate. Materials to be proofed may be immersed in a bath containing not less than 4 per cent. of both proofing substance and wetting agent, excess of liquor removed by passage between rolls, and the material dried. It is then water washed to remove all wetting agent and again dried. Fabric so treated need not be separately shrunk. Dyes may be incorporated in the bath.
Patent GB-1520677-A (GB)
Title: Apparatus for stressing and relaxing of clamp tensioning members for stressed concrete
IPC: E04G21/12
Filed: 1976-02-16
Abstract: 1520677 Clamps DYCKERHOFF & WIDMANN AG 16 Feb 1976 [15 Feb 1975] 05992/76 Heading E2B [Also in Division F2] A group of prestressing tendons 6 are stressed by a jack via a device which includes a hollow support 7, which abuts an anchor plate I in which the tendons are wedged by multiple-part clamping collars 5, a backing plate 19 to which the collars are attached, and a holding plate 20 adjustably mounted with respect both to the backing plate and to the support 7. In initial tensioning the collar 5 are drawn out until they contact plate 20 (Fig. 3), and when the tension is released, they are carried back into plate 1. If a reduction in tension is required later, the stress is taken up by a jack again, plate 20 is moved out by rotating body 7 (to Fig. 1 position) and threaded rods 25 are employed to pull out plate 19, with collar 5, to the position shown in Fig. 4. The tension is then reduced, and plate 19 can be moved back.  The collar 5 may have three main parts held together by a spring, whilst the bush 16 forming the rear of the collar may be in two parts, similarly held together.
Patent GB-674442-A (GB)
Title: Improvements in magnesium-base alloys
IPC: C22C23/06
Filed: 1950-03-09
Abstract: A magnesium-base alloy has the following composition Pr 1-10 per cent, Mg, of at least 99.7 per cent purity, the remainder. The alloy may contain also La up to 40 per cent of the Pr content. In preparing the alloy Mg is preferably first melted in an open top crucible using a thickening foundry flux in amount between 1 and 3 per cent of the melt.  Before the crust forms over the melt the rare earth metal addition is made by holding it in a ladle and moving the ladle about in the melt to wash out the rare earth metal and disperse it in the melt.
Patent GB-1470915-A (GB)
Title: Forced draught ventilation assembly for sealed gas appliances
IPC: F23L17/00
Filed: 1975-02-12
Abstract: 1470915 Fans SAUNIER DUVAL 12 Feb 1975 [13 Feb 1974] 6017/75 Heading F1C An extractor fan and outlet pipe assembly 1 is supported on the hood 2 of a room sealed gas appliance by a plate 10 held by brackets 3 so that the assembly may be removed by sliding the plate in a direction parallel to the axis of the outlet pipe 17. Air enters the appliance via a pipe 4 which is coaxial with outlet pipe 17 to form a balanced flue. The fan is driven by a motor 16 secured to a plate 14 supported by a flexible suspension on the fan volute 11.
Patent GB-608557-A (GB)
Title: Improvements in or relating to the production of anodic films on metal surfaces
IPC: C25D17/00
Filed: 1946-02-26
Abstract: 608,557. Electrolysis. PERFECT, J. M., and UNITED ANODISING, Ltd. Feb. 26, 1946, No. 6043. [Class 41] In a process of producing anodic films on metals, metal articles are immersed in the electrolyte without being directly connected to a source of electrical supply and are located between an anode and a cathode so that the current enters each article from the electrolyte on one side and leaves it at the other side. Direct or alternating current may be used, alternating current producing a film on both sides of the article. Direct current and alternating current may be used concurrently. In the arrangement shown in Fig. 1, an aluminium sheet 15 is mounted to form a partition in a rubber-lined cell 11 which is provided with an anode 13 and a cathode 14 in sulphuric acid electrolyte. The bottom of the sheet dips into a thin layer 117 of non-conducting liquid such as carbon tetrachloride. The electrolyte is agitated by air through pipes 18, 19, and cooled by means of pipes 20, 21. A number of vertical aluminium sheets may be treated, the sheets being spaced from each other and located between the electrodes. In the arrangement shown in Fig. 3, a strip 40 to be coated is fed from a roll 41 into and through a cell 30, and between a grid-like anode 44 and a cathode 45. The strip is guided at the sides by endless bands 36 which pass around pulleys 32 ... 35 and are of U-section to embrace the edges of the strip. Further rubber flaps 48, 49 engage the lower and upper surfaces of the endless bands, whereby the electrolyte above the strip 40 is sealed from that below. A hollow vessel, for example a head-lamp reflector, can be coated in the apparatus shown in Fig. 6, in which the reflector 53 is mounted on a stand 52 in a cell 51 so as to hold electrolyte 54. The electrolyte is substantially at the same level as the electrolyte 55 surrounding the reflector. An anode 56 and a cathode 57 are provided inside and outside the reflector, respectively. To coat heads of rivets or like articles they are mounted in apertures in an insulating cylinder, which is located inside a cell, the anode being inside the cylinder and the cathode outside. In the arrangement shown in Fig. 8, the plate 80 to be anodised is placed between two jets of electrolyte, one connected positively and the other negatively to the source of electrical supply. The plate rests in a groove in a partition dividing the cell 70 into two parts from which the liquid is circulated through the jets by centrifugal pumps. Fig. 9 shows an arrangement for continuous coating of wire 88, which is passed through a cell 83 divided into two chambers by a rubber partition. The partition is in two sections 86, 87, forming a slot along which the wire is fed, the wire being also rotated about its axis. Electrides 91, 92 are situated one in each chamber. Specifications 433,484 and 558,925 are referred to.