baber/WOPTO huggingface dataset:
Patent GB-1179800-A (GB)
Title: Optical Filter
Inventor: HUDSON KENNETH CLIFFORD
IPC: G11B7/1381
Filed: 1968-06-11
Abstract: 1,179,800. Read-only stores. RCA CORP. 11 June, 1968 [11 Oct., 1967], No. 27649/68. Heading G4A. [Also in Division G2] In a system for storing electrical signals upon a recording medium, comprising means 400 for applying a modulated energy source having an intensity which varies from point to point over its cross-sectional area in accordance with a predetermined Gaussian function, means 420 for enlarging the cross-sectional area of said modulated energy source, means 430 for collimating a selected portion of said enlarged source, imaging means 440 disposed to receive said selected portion of said collimated source and focus same into a high-energy density spot, and means 450 for scanning the recording medium 460 with the focused spot, an optical filter 470 is disposed intermediate the collimating means 430 and the imaging means 440, the optical filter having a transmission characteristic which varies from point to point over its cross-sectional area as a function of the radial distance measured from its optical axis, the filter selectively absorbing portions of the enlarged modulated source to cause the enlarged source to emerge from the filter with an intensity which is uniform from point to point over its cross-sectional area. Thus the imaging lens 440 is uniformly irradiated and is capable of transforming the distribution of the beam 475 from the filter 470 into an Airy disc. The filter is made from an absorbing material and an index matching material either or both of which may be liquid or solid. It is desirable to choose an absorbing material with a relatively high attenuation coefficient because, the absorption of the index matching material can then be ignored. Suitable materials are barium titanate or neutral grey glasses. To reproduce the recorded signals, the recording medium 460 is developed (if it is a film) and transported past an unmodulated scanning spot of coherent light. The read-out spot energy is modulated by being passed through the film. When collected and detected by a photo-sensitive device, the energy is converted into an electrical signal which corresponds with the recorded signal.
Patent GB-341457-A (GB)
Title: Improvements in or relating to conduit fittings
IPC: F16L19/08
Filed: 1929-09-12
Abstract: 341,457. Conduit fittings. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(Erie Malleable Iron Co. ; 12th Street, Erie, Pennsylvania, U.S.A.) Sept. 12, 1929, No. 27767. [Class 99 (i).] A joint for electrical conduits comprises tapered slotted sleeves 1, an outer sleeve 9 which has internal wedging surfaces 11, the diameter of the sleeve openings being less than the diameter of the sleeve at its wedging surfaces, and nuts 8 which contract the sleeves 1 on to the conduits A. Guard rings 4 are provided on the inner ends of the sleeves. In joining a conduit to a box 11a, Fig. 9, one slotted sleeve 21 is used ; the outer sleeve 13 has a portion 14 of reduced diameter which is threaded to receive a nut 16 by which the sleeve is secured to the box.
Patent GB-279474-A (GB)
Title: Improvements in the process for the direct production of homogeneous rubber goods from rubber dispersions by electrical means
IPC: C25D1/18
Filed: 1927-03-21
Abstract: 279,474. Anode Rubber Co., Ltd. April 15, 1926, [Convention date]. Divided on 269,504. Latex, heating.-In the electrodeposition of rubber &c. from dispersions, water soluble substances are incorporated with porous moulds which augment the cohesion of the rubber particles. Calcium compounds or mixtures of calcium and magnesium compounds may be used. The addition of ammonia, or ammonium salts assists solution, and renders the solution alkaline. Carbonates produced in moulds thus treated are removed by treatment with an acid to render the moulds fit for subsequent use. Specification 223,189 is referred to. The Specification as open to inspection under Sect. 91 (3 (a) describes also the use of substances which yield under the conditions H ions or polyvalent cations such as compounds of barium, magnesium, zinc, iron, aluminium, or absorptive organic bases, or capillaractive material as esters or urethans. Also the ion-producing substance need not be dissolved in the electrolyte impregnating the moulds. This subjectmatter does not appear in the Specification as accepted.
Patent GB-204224-A (GB)
Title: Water tanks for concrete mixing machines
IPC: B28C7/12
Filed: 1922-10-16
Abstract: 204,224. Jaeger, G. Oct. 16, 1922. Moving-chamber apparatus.-A concrete mixing-machine is provided with means for delivering a predetermined quantity of water to the mixing- drum for each batch. A tank 7 is mounted on horizontal bearings and is filled from a flexible hose 12, a valve, controlled by a float, being provided to cut off the supply when the water reaches its normal level. The tank is swung to discharge the water into a shoot 17, leading to the drum 5, by a lever 13, which engages an adjustable stop 14a. The float is adjustable on its stem 10<a>, which can be engaged by a lever 15, on a backward swing of the tank, to unseat the valve in the event of the valve sticking.
Patent GB-244894-A (GB)
Title: Improvements in internal combustion engines
IPC: F01B9/04
Filed: 1924-11-24
Abstract: 244,894. Taylor, G. A. Nov. 24, 1924. Four-stroke-cycle engines; driving-gear; crank chambers; cylinders; cooling.-The cylinders of an engine are arranged with their axes parellel to the main shaft 18, which is driven through bevel gear 16, 29 from the crank shafts 13 of each cylinder. The small wheels 16 may be formed on the crank discs 12 or be driven therefrom by dogs 17. The large wheel may be formed on the flywheel 22 or on a separate crown wheel bolted to the main shaft. The gear wheels may be inside or outside the crank case S; when arranged as shown studs 41 are placed under the crown wheel to support it. When the gear wheels are outside the crank case a protective casing prevents dirt entering the teeth. The main shaft is supported by two bearings 20, 21. When the cylinders are air-cooled the main shaft is extended to the top of the engine and carries a horizontal flanged disc with two or more blades for forcing air over the cylinders.
Patent GB-319214-A (GB)
Title: Improvements in brakes for power-driven vehicles
IPC: B60T13/46
Filed: 1929-09-17
Abstract: 319,214. Daimler-Benz Akt.-Ges. Sept. 17, 1928, [Convention date]. Fluid-pressure.-In a power-driven vehicle propelled by a crude oil engine, more particularly one having a tractor with vacuum-applied brakes and a trailer with vacuum-released brakes, a vacuum is produced in one or more cylinders of the engine and the means to be actuated by the vacuum are connected or are adapted to be connected to these cylinders when the vehicle is stationary and the engine is running idly. A vacuum vessel may be provided in the brake pipe system. In a vehicle having a Diesel engine the vacuum is produced by one group of the engine cylinders to which the supply of air and fuel is discontinued, the other engine cylinders being fed with the idle running fuel. The brake lever o connected to the brake cylinder q has mounted on it a lever m which must first be depressed to close a throttle i in the part of the induction pipe connected to the engine cylinders providing the brake-operating vacuum. A fuel pump b having a number of cylinders corresponding to the number of engine cylinders is controlled by a rack c and rod d connected to the accelerator, release of which causes closure of the supply of fuel to the port g of the induction pipe and sets the fuel supply to the part h of the induction pipe supply. ing the other engine cylinders, to idle running. A spring-loaded rocking lever u is placed on the lever m or the accelerator mav also be connected to it, in order to keep the throttle i closed when the vehicle is stationary, and thus to maintain a vacuum and keep the trailer brakes released.
Patent GB-519137-A (GB)
Title: Improvements in or relating to electric fires
IPC: F24C7/06
Filed: 1938-09-29
Abstract: 519,137. Electric radiators. FERRANTI, Ltd., WATKISS, J. H., and FLETCHER, A. M. Sept. 29, 1938, No. 28274. [Class 39 (iii)] An electric fire, having a reflector 1 curved only in one direction, is provided with a heating element consisting of a rod 6 of refractory material, two or more short portions only of.. which such as 7, 8 are wound with resistance wire. Each portion is spatially separated from adjacent heating portions, but is electrically connected thereto, for example, by a portion 9 of increased pitch, or by a metal tube clamped over the rod between the coils. Fig. 4 shows two or more rods 11 spaced at intervals along the reflector, and held by brackets 13, the coils 12 being connected by low resistance wire 14.
Patent GB-1104568-A (GB)
Title: Improvements relating to primary cells
IPC: H01M6/30
Filed: 1966-06-24
Abstract: 1,104,568. Primary cells. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES. 24 June, 1966 [24 June, 1965], No. 28292/66. Heading H1B. A primary cell comprises a flexible synthetic plastic container in which is a coated metal inert electrode, a depolarizer layer in contact with the coated electrode and separating it from a surrounding liquid-absorbent layer, and an outer electronegative metal electrode surrounding the liquid-absorbent layer, each electrode being provided with a flexible strip-shaped connecting member bent over and extending outside the container, wherein the coating on the inert electrode is electron-conductive and consists of finely-divided carbon and a binder and extends over at least that part of the electrode which is in the container, and wherein the depolarizer layer consists of a mixture of finely-divided carbon and one or more of the finely-divided persulphates of sodium, potassium and ammonium. In the embodiment of Fig. 1 an inert electrode 1 which may be of aluminium or copper) with a bent connecting strip 2 and a coating 3 of carbon and binder, is placed between depolarizer layers 4 (which may be of paper in which the persulphate and carbon are incorporated), enclosed by an absorbent paper layer 5 and then by an electrode 6 (which may be of magnesium, zinc or aluminium) having a bent connecting strip 7, and the whole inserted in a flexible plastic container 8. Aqueous liquid, e.g. sodium chloride solution, is poured into the container 8 to moisten the layer 5, and the cell is clamped between metal plates which make contact with the strips 2 and 7 extending outside container 8. A number of such cells may be arranged in series and pressed together to form a battery. In the embodiment of Fig. 4 a metal strip 1 (e.g. of aluminium) which is the inert electrode, is coated as before, engaged on each side by depolarizer layers, surrounded by an absorbent layer 5, and by a helically wound metal strip 6 (e.g. of magnesium or zinc) which is the outer electrode, and is contained in the upper part of a plastic tube 50. The electrolyte 56, preferably gelatinous, is in the lower part of the tube and is separated by discs 57 and 58 between which is a grease which forms a seal 59. The cell is brought into action by pressing the lower part of the tube so that the discs are displaced allowing the electrolyte to reach the upper part.
Patent GB-691802-A (GB)
Title: Improved electric coupling devices
Inventor: MARSHMAN GEORGE EDWARD
IPC: H01R4/24
Filed: 1950-11-21
Abstract: 691,802. Cable and wire couplings. COMMUNICATIONS PATENTS, Ltd. Nov. 20, 1951 [Nov. 21, 1950], No. 28442/50. Class 38 (i). An interconnector for a main and a branch insulated cable comprises an insulating body 8 having coaxially-extending walls 9, 10 with diametrically-opposed slots 13, 14. Part of a main cable 6 lies between the wall 9 and a screw-cap 11, and part of a branch cable 7 lies between the wall 10 and a screw-cap 12, the inner ends of slots 13, 14 being grooved to receive the cables. Two metal plates 17, 18 are secured to the body by screws 19 with contact-points 20, two similar plates 21, 22 being secured by screws 23 with contact-points 24, two similar plates 21, 22 being secured by screws 23 with contact-points 24. A resistor 25 is connected between the plates 17, 22 and a resistor 26 between 18, 21. On screwing down the cap 11 the main cable 6 is pierced by points 20, the branch cable 7 being pierced by points 24 on screwing down the cap 12, one conductor of each cable now being connected together by the resistor 25, and the other two by resistor 26. The space round the contacts may be filled with a sealing compound, and securing lugs provided for the device. In other embodiments the resistors are replaced by inductors or capacitors which act as filters. When coaxial cables are used, the inner part of the contact-pins may be coated with a ceramic, and when the outer conductor is thick a hole may be drilled in it to enable the point to contact the inner conductor.
Patent GB-1031234-A (GB)
Title: Elastic collar
IPC: F02M35/10
Filed: 1964-07-10
Abstract: 1,031,234. Seals; pipe joints. A. KNECHT. July 10, 1964 [July 19, 1963], No. 28505/64. Headings F2B and F2G. [Also in Division F1] An elastic collar 1 fitted between an air filter pipe 5 and an intake pipe 15 of a carburetter 9 is formed at one end into an outwardly protruding annular flange 7 supported against an annular surface 8 on the carburetter and serving as a stop for a tightening strap 6, and at the other end into an inwardly protruding annular flange 10 supported against the edge 14 of the intake pipe 15 and having an inclined surface 12 extending in the direction of the air funnel 11 of the carburetter for guiding the air stream thereto. The collar may be made of plastics material and cemented into the slotted end of the pipe 5. A chamfer 16 is provided on the lower edge of the collar to facilitate mounting.
Patent GB-1080944-A (GB)
Title: Improved surgical dressings
IPC: A61F13/20
Filed: 1966-06-24
Abstract: An X-ray responsive filament, which comprises a non-extensible X-ray transparent core material covered with an extruded layer of thermoplastic resin containing an X-ray opaque material, is secured to and extends across one face of a gauze web, which web is folded to give a surgical dressing having a plurality of plies. The filament core material may be natural, artificial or synthetic material (or mixtures thereof), for example cotton, rayon, nylon or polyacrylonitrile, in filamentary form.  The thermoplastic resin comprises a polymer or copolymer base material in which fine particles of a radiopaque substance are uniformly dispersed. Suitable base materials include polystyrene, polyolefins such as polyethylene and polypropylene, polyamides such as polycaprolactan (nylon 6), vinyl polymers such as polyvinyl chloride and polyvinylidene chloride, acrylic polymers such as polyethylacrylate, and cellulose derivatives such as cellulose acetate and ethyl cellulose; polyvinyl chloride is preferred.  The radiopaque substance preferably is inorganic, for example barium sulphate, thorium dioxide or bismuth trioxide.  The filament, which may be made by drawing filamentary core material through orifices in an extrusion head containing molten thermoplastic material, preferably is secured to the web by the application of heat and pressure, for example by passing the unfolded gauze web and filament between complementary opposed heat shoes or rolls. The filament may be radiologically responsive in the form either of a single-line image or of a parallel double-line image; the latter image is given by reason of the tubular shape of the X-ray opaque layer and may be intensified by reason of the flattening of the filament which results from its attachment to the gauze web by hot pressing.
Patent GB-1118610-A (GB)
Title: Improved method and apparatus for determining density of a sample liquid
IPC: G01N9/28
Filed: 1967-06-21
Abstract: 1,118,610. Measuring density electrically. STANDARD OIL CO. June 21, 1967 [June 27, 1966], No.28608/67. Heading G1N. Apparatus for determining the density of a liquid comprises means for bubbling air through the liquid at two depths separated by a known height, and measuring the pressure difference in the feed pipes 10, 10a (Fig. 1) using an electrical transducer 14, this being indicative of the liquid density. The average temperature of the liquid is measured by a thermocouple 16 and the signal used to modify the pressure difference signal to obtain a density value related to a reference temperature. The circuitry Fig.2 (not shown) includes a multipole switch for checking the calibration of the equipment and switching to different ranges.
Patent GB-405933-A (GB)
Title: Improvements in and relating to arc extinguishing chambers for electric switches
IPC: H01H33/75
Filed: 1933-10-16
Abstract: 405,933. Oil-break switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Oct. 16, 1933, No. 28611. Convention date, Oct. 14, 1932. [Class 38 (v).] An arc-extinguishing chamber comprises a metal shell 1 having an insulating covering 2 consisting of layers of paper strip so arranged that adjacent strips overlap each other. The lower part of the shell 1 is tapered, and the upper part is screwthreaded for attachment to the stationary contact supporting device. The paper strips are wound continuously on the shell 1 parallel to its axis, and are pressed against the lower part of the shell by the engagement of a nut 4 with an insulating member 3 provided with a bore for the moving contact. The paper strips are held against the inside of the shell 1 by a hard paper cover 8, and may be secured on the outside by a metal ring 6, or by another hard paper cover 7. If the ring 6 is employed, the space between the ring and the part 4 is wound with wire or tape 5. The parts of the paper strip projecting above the upper edges of the cylinders 7 and 8 or the ring 6 are cut away in order to expose the screw thread on the shell 1. External paper cylinders 9, 10 may be carried by the nut 4 as shown.
Patent GB-282201-A (GB)
Title: Improvements in metal spars for use on aircraft
IPC: B64C1/06
Filed: 1926-11-13
Abstract: 282,201. Armstrong Whitworth Aircraft, Ltd., Sir W. G., and Wylie, H. N. Nov. 13, 1926. Framework. - In metal spars for use on aircraft of the kind in which the spar is formed of thin metal plate which has been bent about longitudinal axes of the spar the hollow spar is constituted by bending thin metal plate to provide in end section a series of flats 3 each inclined to the next and forming at each angle a ridge 4 which may project to the exterior or to the interior. As shown the spar is formed of three plates connected together. Specification 132,332 is referred to.
Patent GB-356504-A (GB)
Title: Improvements in cap closures for jars and like containers
IPC: B65D51/14
Filed: 1930-09-25
Abstract: 356,504. Closures for tumblers. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Phoenix-Hermetic Co. ; 2444, West 16th Street, Chicago, U.S.A.) Sept. 25, 1930, No. 28675. [Class 125 (iii).] A closure for tumblers &c. having outwardly projecting bead 12 comprises a sealing disc 14 and a fastening band 18 having a sealing lug tab 21 and an inwardly projecting sealing head 24 intermediate the edges of the band. The upper edge of the band secures the sealing disc and the lower edge 19 is beaded.
Patent GB-1184399-A (GB)
Title: Binary Radix Converter
IPC: H03M7/12
Filed: 1968-06-17
Abstract: 1,184,399. Binary radix converters. UNITED STATES ATOMIC ENERGY COMMISSION. 17 June, 1968 [20 June, 1967], No. 28688/68. Headings G4A and G4P. In an electrical or fluidic apparatus for binary to binary-coded decimal conversion a binary number is repeatedly divided by the shifted binary value of ten (101), each division being carried out on the quotient result of the previous division and each remainder representing successively higher decades, the first division being on the binary number itself and the divisions being terminated when the quotient is less than 101. Arrays of sublogic elements with binary input terminals ABCD and output terminals W, X, Y, Z representing respectively quotient (Z) and remainder (W, X, Y), are associated with each decade, each element comprising logical circuits containing only NAND and INVERT gates. A parallel representation of a binary number applied at terminals 16 is converted to a parallel binary-coded decimal representation at groups of output terminals 20-28 by the sublogic arrays in successive stages and the signals applied to each group of output terminals represent the remainder of a complete division. Logical functions indicated by Truth Table 1 (not shown) and more precisely defined in the Specification are said to be equivalent to the process of division and are carried out by each sublogic element (Fig. 3, not shown). It is indicated how the converter may be used for control of output from a linear particle accelerator.
Patent GB-891211-A (GB)
Title: Process for the production of mono-per-carboxylic acids from acid anhydrides and hydrogen peroxide
IPC: C07C409/24
Filed: 1960-08-18
Abstract: Mono-percarboxylic acids are prepared by reacting carboxylic acid anhydrides with hydrogen peroxide of at least 80% by weight concentration in the presence of an amine oxide.  A solvent may be used.  In examples mono-per-maleic and mono-per-phthalic acids are prepared.
Patent GB-262574-A (GB)
Title: Improvements in or relating to cushions, seats, beds, upholstery and the like
IPC: A47C27/10
Filed: 1925-11-16
Abstract: 262,574. Moseley & Sons, Ltd., D., and Bermingham, G. E. Nov. 16, 1925. Spring surfaces. - An air cushion is arranged above a bed of upholstery springs mounted on a base frame. In the preferred arrangement the springs 5 are in a box-like framework 4 covered by a flexible partition 6 on which an air container 7 is placed, the latter being enclosed in a casing 8. The air container is preferably of the form described in Specification 245,514.
Patent GB-751596-A (GB)
Title: Improvements relating to supports for drilling and the like machines
Inventor: IRVING JAMES
IPC: E21B19/08
Filed: 1953-10-20
Abstract: 751,596. Percussive drills. BAYLISS, JONES & BAYLISS, Ltd. Oct. 20, 1954 No. 28882/53. Class 124 A support for a drilling machine comprises a cylinder and a ram arranged so that the ram may be moved endwise to increase or decrease the length of the support, one end of the support carrying a drill and the other end a ground engaging spike, and a reservoir chamber communicating with the cylinder to form a closed self-contained hydraulic system, the chamber containing a piston movable by manual means in one direction to expel hydraulic fluid into the cylinder to extend the support and in the other to contract the support. As shown, a cylinder 11 has a spike 13 on one end and a guide 10 on the other through which passes a hollow ram 12 supporting a rock drill 18 on its outermost end. The inner end of the ram 12 has a cap which is an easy fit in the cylinder 11. A reservoir chamber 22 is secured to one side of the cylinder and is provided with a piston 28 which is movable by means of a handwheel 31 and screw 29, movement of the piston increasing the length of the support by hydraulic pressure or allowing the support to contract by the reduction of that pressure. The piston 28 may have a larger area than that of the ram and the velocity ratio between the piston and the ram may be 45: 1 to 20: 1. The reservoir chamber is secured to that part of the support which is normally stationary or it may be situated at a point remote from the support and connected thereto by a flexible pipe-line.