baber/WOPTO huggingface dataset:
Patent GB-694721-A (GB)
Title: An improved radio means for locating the direction and distance between two objects
IPC: G01S11/04
Filed: 1950-02-15
Abstract: 694,721. Radio navigation. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Feb. 15, 1950 [May 24, 1949], No. 3876/50. Class 40 (vii). A radio beacon from the signals of wavelength # of which an ordinary direction finding receiver can be used to determine the distance R from the beacon to the receiver comprises apparatus for transmitting in alternate time intervals a field rotating in one direction and a field rotating at the same angular velocity in the opposite direction. The direction finder is used to obtain an angle 81 representing half the difference between the apparent bearings of the beacon at the receiver and it is shown that where n is the number of poles of the transmitted rotating field. By increasing the number of poles the range at which reasonable values of #<SP>1</SP> are obtained is increased. A simple antenna system for the beacon rotating field may comprise two loops in mutually perpendicular planes fed by signals differing in phase by 90 degrees. Further loops equiangularly spaced may be added, alternate ones being fed in parallel or series and intervening ones being fed in the same way but with a phase shift of 90 degrees. The loops may be figure-of-eight shaped with the centre limbs of all of them enclosed in a common earthed tube, Figs. 2 and 3 (not shown). A development of an antenna system comprising 16 elements arranged round a cylindrical surface is shown in Fig. 4, alternate elements being connected to common connecting conductors at the top of the system and the lower ends of every fourth element being joined and connected as shown to the terminals of oscillator O1 and oscillator 02 of the same frequency as O1 but phase displaced 90 degrees relative to it. The craft using the beacon may carry an automatic direction finder arranged to indicate distance directly.
Patent GB-445637-A (GB)
Title: Improvements relating to door latch or latch and lock operating mechanism
IPC: E05B15/04
Filed: 1935-02-07
Abstract: 445,637. Fastenings. SHOWELL & SONS, Ltd., E., Stirchley Brass Foundry, and PEARCE, A. J., 15, Avebury Road, both in Stirchley, and BRADBURN, H. G., 73, Beaumont Road, Bournville, both in Birmingham. Feb. 7, 1935, No. 3913. [Class 44] A lock or latch mechanism with an actuating handle 9, or a knob, is provided with a supplementary spring 10 which is attached at one end to the square spindle 8, and anchored at the other end in a slot 11<d> in a cover 11<a>. The normal latch mechanism is contained within a casing 7. The spring 10 is placed in a box 11 which has ears 11<b> pierced by screws which hold it to the door 6 under a rose or fixing plate 9<a>. A projection 11<e> on the cover 11<a> contacts with one of the securing lugs 11<c> to limit the turning movement of the handle. The separate box 11 may be dispensed with and the spring 10 secured at one end to the fixing plate.
Patent GB-472296-A (GB)
Title: Improvements relating to the working of rontgen tubes under high voltages
IPC: H05G1/04
Filed: 1937-02-10
Abstract: 472,296. R÷ntgen -ray apparatus. SIEMENS-REINIGER-WERKE AKT.-GES. Feb. 10, 1937, No. 3980. Convention date, Feb. 18, 1936. [Class 39 (i)] [Also in Group XX] A R÷ntgen-ray tube operating under high voltage is connected directly to the source of A.C. voltage, is contained in a protective casing filled with an insulating medium, e.g. oil, one electrode being connected to the outer earthed side of the casing, and is surrounded throughout its length by annular metal bodies arranged so that due to their mutual capacities the potential distribution within the casing corresponds to the natural distribution of potential along the tube. Suitable tubes are those having double walls, thick walls, or electron hoods and the natural distribution of potential may be made linear by known means. The annular metal bodies 18 are preferably insulated, e.g. by paper wrappings, and may be thickened at the edges to avoid brush discharge. The metal bodies 18a, 18b at the ends of the tube may be connected to the anode and cathode respectively. If desired, stepped potentials may be applied to the intermediate metal bodies. A vessel of insulating material, e.g. porcelain or synthetic resin may separate the tube from the annular bodies.
Patent GB-676765-A (GB)
Title: Improvements in or relating to a coated article and coating composition
IPC: C08J7/046
Filed: 1948-02-11
Abstract: A polystyrene surface has integrally bonded thereto a coating applied from a solution in a solvent for the coating but not for polystyrene, which coating comprises an acrylate- or methacrylate-type resin or a mixture of such resin and a cellulose ester, the coating preferably comprising from 100 to 1 per cent of a thermoplastic-type acrylate or methacrylate resin and from 0 to 99 per cent of a cellulose ester, which may be cellulose acetate, butyrate, acetate butyrate or acetate propionate.  The solvent may be a composition comprising 3 to 25 per cent of a solvent selected from a group consisting of aliphatic ketones and esters, toluene and aliphatic substances other than nitromethane having a boiling range below 120 DEG  C.; 5 to 35 per cent of a solvent selected from the group consisting of nitromethane, aliphatic alcohols and lactates having less than 6 p  carbon atoms; and 20 to 40 per cent of a substance selected from the group consisting of diacetone alcohol, lactates having from 5 to 10 carbon atoms, glycol ethers and esters.  The coating composition may be prepared by refluxing an acrylate or methacrylate monomer with a polymerization catalyst, particularly benzoyl peroxide, in such a solvent composition.
Patent GB-438763-A (GB)
Title: Improvements in apparatus for precipitating metals from solutions
IPC: C22B11/08
Filed: 1935-02-07
Abstract: 438,763. Precipitating metals. MERRILL CO., 343, Sansome Street, San Francisco, California, U.S.A. Feb. 7, 1935, No. 4028. Convention date, Oct. 19, 1934. [Class 82 (i)] Apparatus for the precipitation of gold and like precious metals from cyanide solution comprises a clarifying filter 11, an evacuated deaerating receiver 16, and a pump 21 supplying the solution to a precipitating filter 26 to which solution a precipitant such as zinc dust is added. The pressure of the solution in the precipitating filter is automatically controlled either by an overflow pipe 44 from the supply pipe 27 or by arranging a supply tank 47, Fig. 2, for the solution, above the precipitating filter, so that a constant head of solution is maintained. The level of the clarified solution in the receiver 16 is controlled by a float-operated lever 18, and valve 19 in the supply pipe, and the vacuum is maintained by a pump 17. Another pump 21 supplies the de-aerated solution to the pipe 27 to which is also fed zinc dust and a reagent such as a lead acetate solution from a mixing cone 31 by a pump 36, and a constant trickle is maintained through pipe 44 back to the clarifying filter. In Fig. 2, the deaerated solution is fed to the overhead tank 47 by a valve-controlled pipe 48, and flows by a pipe 49 into the mixing cone 51 from which the solution and precipitant flow by gravity through a float-controlled valve 56 and pipe 52 to the bag filters 28. A bleedoff pipe 53 discharges into the cone 51.
Patent GB-764651-A (GB)
Title: Improvements in or relating to internal-combustion engines with fuel-injection and energy cell
IPC: F02B21/00
Filed: 1955-02-11
Abstract: 764,651. Fuel-injection engines. LANOVA AKT.-GES. Feb. 11, 1955 [June 12, 1954], No. 4113/55. Class 7 (3). An injection engine comprises a combustion chamber 2 off centre in relation to the longitudinal axis of the cylinder an injection nozzle 3 and an auxiliary combustion chamber 4 and the fuel is sprayed in a jet in the direction of the orifice 6 of the auxiliary combustion chamber and in at least a second jet directed towards the gap between the piston head and the cylinder head wall. The nozzle has a reduced discharge end and an axial bore and at least one more bore which opens in the region where the reduced discharge end of the nozzle begins.
Patent GB-668551-A (GB)
Title: Improvements in control apparatus for controlling a condition of liquids or vapours
IPC: G05D23/02
Filed: 1949-02-15
Abstract: 668,551. Valves. INGHAM, W. J. Jan. 27, 1950 [Feb. 15, 1949], No. 4145/49. Class 135. A control apparatus for controlling a condition of liquids or vapours in a vessel containing a liquid above which is a closed vapour space, comprising a tube passing through the liquid into the space, a valve rod movable axially in the tube to actuate valve means restricting the passage of vapour through the tube, and means responsive to the condition actuating through the rod a control means for influencing the condition. As shown, a vessel A is connected to the steam and water spaces respectively of a boiler by the connections V, Z and a float D moves between the high and low water levels XX and YY respectively about a tube B which passes through the water and opens into the steam space at the top of the vessel. When the float is at the high level it closes through a lever O<SP>1</SP> a water supply valve O. Should the float reach the low level it depresses a plate E<SP>1</SP> to close a gasburner supply valve P loosely connected at P<SP>2</SP> to a rod C passing freely through the tube B and connected to the plate E<SP>1</SP> by a pair of rods E. Should the steam pressure increase unduly, a spring- loaded piston valve M is raised and, through the link L and lever G weighted at K, moves the rod C to close the gas valve. Further increase in steam pressure moves the piston M against the springs M<SP>2</SP>, L<SP>1</SP> to relieve the pressure through the ports N<SP>1</SP>. In order to restrict the passage of steam through the tube B, the rod C carries two valves C<SP>1</SP>, C<SP>2</SP> seating on the upper and lower ends respectively of the tube when the rod moves to its lowest or highest position, the small amount of steam in the tube being vented through the port S'. The piston M may be loaded by a weight or a weight acting through a lever and may be assisted in closing on its seat N<SP>2</SP> by a tumbler weight. In another embodiment, the' rods E are connected to a ported sinker disc responsive to the pressure of water flowing into a geyser type of water heater.
Patent GB-538180-A (GB)
Title: Improvements in duplicating machines
IPC: B41L11/00
Filed: 1940-12-18
Abstract: 538,180. Copying documents. FORD, F. R. Dec. 18, 1940, No. 4268/41. Divided out of 538,163. [Class 100 (ii)] In mirror-script duplicating- machines of the kind shown in Specifications 483,287 and 512,249, a feed-tray for copy sheets is permanently mounted on the traversing carriage and is adjustable thereon in a direction parallel to the axis of the cylinder for feeding copy sheets to either or both of the moisteners. The carriage is traversed along rods 21, 23, the latter being engaged by adjustable rollers 38, and carries the feed-tray 26 which is adjustable along a rod 94 carried by the support frame 25 and is held by a spring-pressed pawl 97 engaging a rack 99 in the frame 25. Rod 94 is engaged by a sleeve 95 on the tray, the sleeve being under lateral spring pressure. The tray is of channel section and has at its delivery end a guard plate 105 to keep the leadirig edges of the copy sheets in contact with the tray. The tray has, an adjustable bar 92 co-operating with the rear edge of the copy sheet.
Patent GB-1200235-A (GB)
Title: A method of manufacturing a fabric-like material having a high degree of strength and softness, and a product manufactured according to the method
Inventor: PERSSON LEIF
IPC: D04H13/00
Filed: 1968-01-26
Abstract: 1,200,235. Fibrous laminates. BILLINGSFORS-LANGED A.B. 26 Jan., 1968 [16 Feb., 1967], No. 4283/68. Heading B5N. [Also in Division B2] A textile material is made by impregnatng fibrous material with an aqueous dispersion of polymeric material, removing part of the water to form an adhesive elastomeric surface and pressing thereon without heating a layer of tissue paper (or loose fibres, see Division B2). The base material may be a non-woven rayon, cotton or nylon web or tissue paper. The impregnant may be used in amount 15-20 gm./m.<SP>2</SP> and may be plasticized natural rubber latex, polyisobutylene, polyvinyl ester or polyacrylic ester, and the dispersion thereof may include petroleum resin and an antioxidant. The surface layer may comprise creped tissue paper. The impregnant may be applied by roller or by immersion, excess being removed by squeeze rollers or air blade. Water may be removed by evaporation in a drying cupboard. Tissue paper can be applied to both sides of the base, or tissue paper can be applied to one side and loose fibres to the other.
Patent GB-113029-A (GB)
Title: A Machine or Apparatus for Reclaiming Devastated Agricultural Land.
Inventor: MARSHALL THOMAS
IPC: E02F3/47
Filed: 1917-03-27
Abstract: 113,029. Marshall, T. March 27, 1917. Jib cranes.-A machine for levelling ground and for extracting steel and iron scrap therefrom comprises a motor driven endless-track carriage 1, provided with a platform 4 on which a jib crane 5 travels. The rail platform is centrally supported by a cup-and-ball pedestal and is adapted to be adjusted relatively to the carriage in order to be maintained horizontal, by screwed rods 8 secured at the ends of the platform to both platform and carriage by universal joints 8*. The crane which is kept in position by side frames 9, extending from the platform, is fitted with a grab 10 and a magnet 11, the magnet being adapted to be raised out of operative position by a cord 12. In operation, after the platform 4 has been levelled, the grab is filled and the magnet lowered so that as the grab is slowly opened its contents pass over the magnet which retains the iron and steel. A grab or magnet may be used on the crane separately.
Patent GB-540676-A (GB)
Title: An improved closure for drums or containers
IPC: B65D45/34
Filed: 1941-04-04
Abstract: 540,676. Clamping rings for the heads of metal drums &c. READS, Ltd., and BROWN, H. April 4, 1941, No. 4492. [Class 21] A channelled clamping ring 2 is contracted about the flange 22 of the cover 23 of a sheet metal drum &c. 25 and a beaded rim 24 of the body by engaging a hook 7b of a lever 5 with a pin 4 on a lever 1 which is then rotated till it engages a rest 11 where it is held by a sealing wire or a hook. A washer may be inserted between the flange and rim, and lever 5 may be permanently connected to lever 1. The meeting of the ends of the ring may be bridged by a hooked lug carried on lever 5. The lever 1 may be secured in the closed position by an aperture therein springing over a stud on the ring, or by a screw engaging the lever and ring, a positioning stud on the lever ensuring correct alignment.
Patent GB-222975-A (GB)
Title: Improvements in or relating to treating pea-nuts for food
IPC: B30B9/20
Filed: 1923-12-14
Abstract: 222,975. Townsend, C. S., and Lever Bros., Ltd. Dec. 14, 1923. Fatty oils, extracting by pressure.-In treating peanuts to form food products, a portion of the oil is expressed by passage. between corrugated rollers a, d arranged to form channels c, f, in which the nuts are crushed, and spaces g into which the oil can exude. Wires are held stationary so as to lie in the channels f and to drain off the oil. The rollers may be heated. The pressed nuts are removed by knives i. The nuts are first treated to remove the red skins, and after being immersed in hot water and shaken to split the kernels, are passed between the pressing rollers.
Patent GB-545827-A (GB)
Title: Improvements in and relating to amplifier coupling circuits
IPC: H03F1/50
Filed: 1941-04-04
Abstract: 545,827. Valve amplifying circuits impedance networks. BRITISH THOMSON-HOUSTON CO., Ltd. April 4, 1941, No. 4542. Convention date, April 5, 1940. [Classes 40 (iii) and 40 (v)] A coupling for a broad band of frequencies between two terminals comprises three resistances connecting the terminals to points of fixed potential a point between the second and third resistances being also connected to a point of fixed potential through a by-pass condenser and between the terminals large and small condensers connected in shunt, the stray capacity to earth of the larger condenser being prevented from attenuating the higher frequencies by providing a decoupling resistance between it and each of the terminals. Fig. 1 shows a coupling comprising anode resistance 19 with series inductance 18 and grid resistance 29 with condensers 27, 38 in parallel decoupling resistances 37, 39 which may be of equal values obviating the loss of high frequency which would otherwise occur due to the stray capacity to earth shown as capacity 40. Gas discharge voltage regulators 26, 36 are provided in the screen grid circuits in addition to the usual byepass condensers. To avoid phase shift and to maintain the gain constant throughout the frequency range the ratio of the resistance 29 to resistance 19 is made equal to the ratio of the capacity 22 to capacity 27 and also to the ratio of resistances 37, 39 to resistance 20. At the highest working frequency the magnitude of the resistance 19 is made equal to the impedance of the stray shunt capacity across resistance 19 while inductance 18 is given a value in Henrys of 1/4# f times the value of resistance 19 where f is the maximum frequency. The Specification gives response curves and numerical data of components for an amplifier operating from 20 cycles to 3 megacycles.
Patent GB-539462-A (GB)
Title: Improvements in and relating to wheeled jack
IPC: B62B1/08
Filed: 1940-03-11
Abstract: 539,462. Lifting-jacks. TRIGGS, W. W. (Yale & Towne Manufacturing Co.). March 11, 1940, No. 4544. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 28, 1940,] [Class 78 (iii)] [Also in Group XXXII] A wheeled jack, more especially for converting a two-wheeled hand truck temporarily into a four-wheeled truck, comprises a main frame member 18 supported on the axle 16 carrying the wheels 13. The crutch member 19, which is. formed with guides 20 V-shaped in plan leading to a recess 21 engaging the downwardly-projecting pin 22 on the truck, is pivotally supported on the frame 18 by two pairs of links 25, 27 forming a parallelogram. The handle socket 15 is pivoted at 23 on the crutch member 19, the shaft 23 also carrying a pawl 32 adapted to co-operate with a notch 35 on the frame. A holding hook 47 is pivoted on the main frame at 28 and is controlled normally by a dog 38 pivoted on main frame at 37 and controlled by a rod 47 placed under compression by a spring enclosed in the handle. In the position shown in Fig. 3, the compression of the spring holds the dog against the spur 48 of the holding hook and thus maintains the latter with its recess 49 in contact with a projection on the handle socket, and supports the handle in its raised position of rest. A downward pull applied to the handle first disengages the socket from the holding-hook and then causes projections 30 on the socket to contact the rear links 27 and swing them upwards, thus elevating the crutch. When the full lift has been effected, the pawl 32 arrives opposite the notch 35 and falls by gravity to engage it. The handle can then be released while the crutch is held in its elevated position by the.pawl. To lower the platform, the handle must be moved back to a position nearer the vertical than that shown in Fig. 3, so that a pin 55 on the socket engages the surface 56 on the holding-hook and swings the latter clockwise until the heel 48 becomes disengaged from the dog 38. The holding-hook then falls further by gravity until the projection 57 is arrested by the stop 32a on the pawl. In this position of the parts the handle can be used to haul the loaded platform from place to place. When the handle is swung downwards again beyond the point required for elevating the platform, the lifting-hook is re-engaged with the member 50 as shown in Fig. 6, the pawl 32 is raised from the notch 35 and is held in the raised position by the member 57. In consequence the pawl does not reengage the notch when the handle is manipulated to lower the crutch member.
Patent GB-473583-A (GB)
Title: Improvements in and relating to metal vapour discharge tubes
IPC: H01J61/28
Filed: 1937-02-15
Abstract: 473,583. Discharge apparatus. MEISEL, R. P. Feb. 15, 1937, No. 4561. [Class 39 (i)] In metal-vapour discharge tubes having solid preferably thermionic electrodes and an envelope 1, Fig. 1, of U- or V-shape, a reservoir 4 containing an excess of the vaporizable metal, e.g. mercury in solid or liquid form is connected with the envelope between its ends and is so arranged that the reservoir is heated by the heat of the tube either by radiation or conduction. As shown, the reservoir is connected by heat-transmitting means, such as aluminium plates 8, to the ends of the envelope. Preferably the connection between the reservoir and the interior of the envelope is a bent capillary 5 in which is dsposed a loose platinum wire so as to seal the reservoir until all the metal in the discharge space has been vaporized. The electrodes 2, 3 consist of dished members 10, 11, Fig. 3, between which is provided a mass of thermionic material such as barium or barium oxide. A point 12 is provided to take the discharge, and protect the lower parts of the electrodes.
Patent GB-1135611-A (GB)
Title: Electrical collector head
IPC: H01R39/64
Filed: 1966-02-02
Abstract: 1,135,611. Rotating couplings. BETHLEHEM STEEL CORP. 2 Feb., 1966 [9 Feb., 1965], No. 4575/66. Heading H2E. A rotating coupling comprises a contact drum 15 secured via plate 13 and member 12 to a rotating member 10, and a stationary housing 18 and 25 surrounding the drum, current being transferred from the housing to the drum by eight braid contacts 20 which lie in a spiral configuration around the periphery of the drum. Each braid contact is secured at one end to the housing 18 by a bolt 22 and at the other end to rings 23 and 24 which are rotatable around the axis of drum 15 under the action of springs 48 to tension the braid contacts. The tension of the springs 48 may be adjusted by a ring 43 which may be locked by nuts (56) (Fig. 3, not shown). Current is supplied to the housing 18 from heavy wire connections 47 clamped to plate 19 integral with housing 18. Water is used as a coolant and lubricant in the assembly and appropriate seals 37, 40, 40<SP>1</SP>, 41 and 42 are provided. The contact drum 15 is preferably made of aluminium bronze although either bronze or beryllium bronze may be used. The housing is preferably of brass and the braid contacts of copper which may be coated with silver.
Patent GB-266708-A (GB)
Title: Improvements in cigarette cartons
IPC: B65D85/10
Filed: 1927-02-18
Abstract: 266,708. Gilbert, E. M. Feb. 26, 1926, [Convention date]. Drawer - and - shell cartons; matches, specially designed for; fittings, internal.-In a drawer- and-shell carton having a strip of matches thereon, the wall of the carton carrying the matches is supported against crushing by a partitioning device 5 which is folded up from sheet material and preferably has flanges 6 engaging the side walls 2 of the drawer. The partitions 5 may be arranged to form rectangular compartments or may have the form shown in Fig. 5. The matches are so arranged on the strip as to leave a space between each of the match heads.