baber/WOPTO huggingface dataset:
Patent GB-1103632-A (GB)
Title: Improvements in radars and particularly in optical radars
IPC: G01C19/14
Filed: 1965-06-02
Abstract: 1,103,632. Photo-electric position and velocity determination. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 2 June, 1965 [2 June, 1964], No. 23571/65. Heading H4D. In an optical radar system utilizing the Doppler effect, a beam from a coherent source such as a laser 10 is projected via a scanning device 11 and an optical system 12. Reflected beams from targets are received by an optical system 13 and are taken to a light adder 14 which is also fed directly from the beam from the laser 10, and an output beam containing light from both beams passes through a device 15, for reducing background solar interference, to a photomultiplier 16. The electric signal output from the photo-multiplier 16 contains the Doppler frequencies due to the movements of the targets and is taken to a filter system 17 comprising three band-pass filters 30, 31, 32, Fig. 3 (not shown), which supply, respectively, the colour input terminals of a tri-chromatic cathode-ray tube contained in an oscilloscope 18. In this way, the representation of a target is seen in a colour corresponding to one of three distinct speed ranges. Finer resolution of speed is obtained by means of a device 110, comprising a plurality of band-pass filters 40, 41 . . . 4n, Fig. 4 (not shown), connected to gates 410, 411 . . . 41n which mark targets according to their speeds. The photomultiplier 16 also supplies a distance and angular position measuring system 19. The scanning device 11 may provide scanning in two dimensions by mechanical means or may operate electronically with " staircase " waveforms, the light beam being interrupted by a modulator during transitions. A scanning means using a vibrating quartz crystal to set up standing waves in a strip of transparent material whose refractive index varies with stress is described. The anti-interference device 15 and the photomultiplier 16 may be combined so that a casing has at one end a photocathode (20), Fig. 2 (not shown), from which electrons proceed to a screen (23) with an aperture (24). A deflection system (22) moves the electron beam in synchronism with the beam from the laser so that only electrons corresponding to the target pass through the aperture (24), and are received by a photomultiplier (21). Distance is determined from the time of transit of the leading edge of a light pulse to a target and back by reflection to the radar system. Angular position may be determined by moving an observation gate provided with rectangular co-ordinate counters to the image of the target, in a similar way to that described in French Specification 1,404,558.
Patent GB-517706-A (GB)
Title: Improvements relating to attaching trailers to tractors
IPC: B60D1/14
Filed: 1938-08-10
Abstract: 517,706. Vehicle couplings. CARTER, S., and CARTER, N. Aug. 10, 1938, No. 23576. [Class 103 (v)] A coupling between a two-wheeled tractor and a towed agricultural implement such as a lawn-mower comprises on the tractor a rearwardly-extending bar d to which is attached an arcuate guide formed of two horizontal plates e, f, and on the front of the trailed implement a bar c pivotally connected to the bar d so as to swivel in an horizontal plane and guided by the plates e, f so that all movement in a vertical plane is prevented. The connection between the parts c, d is preferably effected by means of a shackle-pin i inserted through eyes in a plate g attached to the bar d and through eyes in a pair of plates h attached to the bar c. Shafts b provide for the steering of the two-wheeled tractor.
Patent GB-240455-A (GB)
Title: High frequency thermionic valve
IPC: H01J21/20
Filed: 1925-09-22
Abstract: 240,455. Loewe, S. Sept. 23, 1924, [Convention date]. Thermoinic amplifiers.-In a multi-stage highfrequency amplifier having several sets of grids and anodes together with their coupling elements, such as resistances and condensers, mounted in a single bulb, high resistances of low capacity or screened grids are provided within the bulb for controlling the grid potential. The valve shown in Fig. 2 comprises a single filament 24, three grids 9, 13, 17, three anodes 10, 14, 30, resistances 11, 15 connected between the anodes 10, 14 respectively and a lead 26, resistances 18, 19 between the grids 13, 17 respectively, and a lead 25. a block condenser 12 between the anode 10 and grid 13, and a condenser 16 between the anode 14 and grid 17. The input circuit is connected to the terminals 27, 28 and the output circuit to the anode 30 and lead 26, which is also connected to the positive terminal of the hightension battery. The lead 25 is connected with the negative terminals of the filament and hightension batteries. In the arrangement shown in Fig. 3 the condensers and some of the resistances are omitted, and the grids 9, 13, 17 and anodes 10, 14, 30 are mounted alternately on opposite sides of the filament 24, with interposed mica shields 31 to prevent reception of electrons by the grids; or the grid may be coated with borax or porcelain enamel. The shields may be mounted on the grids or on brackets. Low-capacity resistances 11, 15 are connected between the anodes 10, 14 respectively and a lead 26.
Patent GB-777194-A (GB)
Title: Improvements in or relating to electromagnetic wave-guiding apparatus
IPC: H01P3/10
Filed: 1955-08-16
Abstract: 777,194. Waveguides. WESTERN ELECTRIC CO., Inc. Aug. 16, 1955 [Aug. 18, 1954], No. 23601/55. Class 40 (8). A surface-wave transmission medium for frequencies within the millimetric range comprises a strip of dielectric material 14 mechanically strengthened by means of a high-resistance metallic core 15 which also serves to prevent mode degeneracy. The dominant mode supported by such medium has a field pattern resembling that of the dominant TE waveguide mode. This mode is not attenuated by the metallic core 15 since the electric field has no component parallel to the axis of the core. Any tendency to degeneracy into a TM mode mode is prevented by the fact that all TM modes produce longitudinal currents in the resistive core and hence are rapidly attenuated. The dielectric strip may be made of an artificial plastic material and the core of the type of resistance wire used in the manufacture of resistance elements. Any metal or alloy having a resistivity greater than 15 X 10<SP>-6</SP> ohms per cm. cube at 20‹ C. may be used for the core. In order to maintain the polarization of the propagated wave the dielectric strip may have a cross-section of unequal orthogonal dimensions, e.g. rectangular or elliptical. The dielectric guide may be coupled to a hollow rectangular guide 16 by means of a rectangular horn 17. A portion of the dielectric guide extends for several wavelengths within the guide 16 and is tapered to improve the match between the guides. Specification 731,473 is referred to.
Patent GB-1155256-A (GB)
Title: Improvements in or relating to Plate Bending Machines.
Inventor: TRIBULA FRANTISEK
IPC: B21D5/04
Filed: 1967-05-22
Abstract: 1,155,256. Angular bending. SMERALOVY ZAVODY NARODNI PODNIK. 22 May, 1967 [3 June, 1966]. No. 23604/67. Heading B3E. A plate bending machine comprises a support beam 1, a clamping beam 3 for clamping a plate 2 to be bent to the beam 1 and a bending beam 6 mounted for pivotal movement relative to the support beam 1, yieldable means being provided which allow movement of the bending beam 6 away from pivot during bending. Plates of different thicknesses may thus be bent. The beam 6, which carries a tool 7, is slidably mounted in arms 5 pivotable in the direction S. The beam 6 is supported at each end, in the arms 5 by a spacer 8 on a piston-rod 9 of a piston 10 in an hydraulic cylinder 11 carried by the arm. The cylinders 11 communicate through pipes 12 with a relief valve, a pump or accumulator returning the piston to its initial position. A pneumatic or spring system may replace the hydraulic system.
Patent GB-705434-A (GB)
Title: Interpolymers
IPC: C08F212/14
Filed: 1951-10-11
Abstract: An interpolymer is made by reacting (1) 10-75 per cent. of one or more monoaryl-2-alkenes-1 and (2) 90-25 per cent. of an ester, having at least three acid radicals per molecule, derived from one or more olefinically unsaturated acids having 12-22 carbon atoms and a resinous glycidyl ether of a dihydric phenol.  Many monoaryl-2-alkene-1's are specified but the examples are limited to styrene and its mixtures with alpha-methyl styrene.  The unsaturated fatty acids are preferably dito penta-ene acids and are derived from natural drying oils (many specified).  Saturated acids and mono-olefinic acids may also be present.  Esterification is effected by heating the acid and glycidyl ether preferably in presence of sulphuric-, phosphoric- or toluene sulphonic-acid and a hydrocarbon azeotroping agent.  Interpolymerisation of the ester and the monoaryl-2-alkene-1 is effected by heating preferably in presence of an organic peroxide (many specified) or a Friedel-Craft catalyst and a hydrocarbon solvent.  The interpolymers dissolved in a hydrocarbon solvent with or without a cobalt naphthenate drier are coating compositions.  Specifications 675,165, 680,997 and 681,001 are referred to.
Patent GB-667220-A (GB)
Title: Improvements in or relating to the sealing of containers
Inventor: MAY VICTOR LEONARD
Filed: 1949-09-14
Abstract: 667,220. Capsules. MINISTER OF SUPPLY. Dec. 6, 1950 [Sept. 14, 1949], No. 23755/49. Classes 125(ii) and 125(iii) A container is sealed by sliding into the neck thereof a cup-shaped part 1 having a resilient packing-ring 3 disposed in an external groove 2 and then expanding the part 1 to press the ring against the container. Room is left for lateral expansion of the ring 2 and after sealing the top of the container and capsule can be coned over as shown and varnished. The part 1 is expanded by compressing a resilient ring 10 between a conical head 5a of a bolt 4 and a ring 11 by tightening a nut 9, a ball-race 12-15 being provided between the ring 11 and the nut. During expansion, the container neck may be supported by an external ring.
Patent GB-650151-A (GB)
Title: Improvements in or relating to hole-punching devices
Inventor: MAUNDER CLAUDE ALFRED
IPC: B26F1/02
Filed: 1948-09-09
Abstract: 650,151. Punching-machines. MASSON SEELEY & CO., Ltd. Sept. 9, 1948, No. 23756. [Class 31 (ii)] A punching device comprising a base suitable for positioning on the lower platen of a press, an upper member guided for reciprocation towards and away from said base, one or more punches carried by the upper member, one or more hollow dies located in said base and disposed for registration with said punches and means for resiliently retaining the upper member in a position in which the punches are spaced from the base by a distance sufficient to 'allow of the article to be punched being placed thereunder is characterized in that clearing means mounted for reciprocation below the outlet ends of the dies are provided for removing from the device waste parts punched from the article. As shown in Figs. 1 and 2 a base-plate 1 carrying die elements 12, 13 has secured thereto a bridge plate 3 having openings which register with the die elements, the work being inserted between the base and the bridge plate. A rear plate 5 and side plates 8, 9 adjustably secured by screws 7, 10, 11 act as guide faces for ensuring correct positioning of the work. A punch plate 18 movable vertically on pillars 19 carries punches 14, 15 and a contact strip 21 which engages the upper platen of the press (not shown). The under surface of the base plate is provided with slots extending beneath the dies, arms 23, 24 of a clearing device sliding in the slots to remove the punched-out material when pushed inward against the force of spring 26. The clearing device may be coupled to a moving part of the press so that waste removal is effected automatically at each operation. Springs 20 on the pillars 19 tend to keep the punch plate raised from the base and resilient buffers, e.g. of rubber, may assist the action of these springs. The punches and dies may be adjustably mounted.
Patent GB-1196631-A (GB)
Title: Electrolytic Diaphragm Cell
IPC: C25B3/29
Filed: 1967-05-23
Abstract: 1,196,631. Electrolytic diaphragm cell; production of adiponitrile. MONSANTO CO. May 23, 1967 [May 31, 1966], No.23969/67. Heading C7B. An electrolytic cell comprises parallel anode and cathode surfaces separated by a cation permeable membrane to form cathode and anode chambers; pump means for pumping catholyte through the cathode chamber parallel to the cathode surface and at a given inlet pressure, and pump means for pumping anolyte through the anode chamber parallel to the catholyte flow; and a plurality of elongate spacer members mounted between the cathode and the membrane to define a plurality of elongate catholyte flow passages along the cathode surface. In the form shown individual assemblies are slidably suspended from horizontal rails 52, 54; the assemblies being an anode structure 20 comprising an anode 22 mounted in an insulating block 56, e.g. of polypropylene; membrane structures 34 and 40, each comprising a membrane 38 and a mesh 72, e.g. of monfilament polypropylene cloth, the mesh preventing contact between anode and membrane; cathode structure 30, and a bipolar electrode structure 24; the cathodes having attached thereto a plurality of vertical memebrane spacer strips 94. Electrolyte is supplied to the various cell compartments via horizontal passages formed in the insulating blocks supporting the respective electrodes, from which the electrolyte flows to the cell compartments over the full width thereof. A small pressure differential between anolyte and catholyte may exist. The anodes used may be of lead - silver alloy containing about 1% silver, and the cathodes may be of lead. The apparatus may be used in the production of adiponitrile from acrylonitrile using an aqueous catholyte containing acrylonitrile, quaternary ammonium salt, adiponitrile and other organic reaction products, and an anolyte of dilute mineral acid, e.g. of sulphuric acid.
Patent GB-1452661-A (GB)
Title: Pattern recognition equipment
IPC: G06V10/98
Filed: 1974-05-31
Abstract: 1452661 Character recognition systems INTERNATIONAL BUSINESS MACHINES CORP 31 May 1974 [28 June 1973] 24154/74 Heading G4R The system employs two or more recognition units which receive the same signals from a scanner viewing the character but which operate in different manners. The outputs of the units, which are either character-identifying signals or signals indicating failure to identify the character, are compared with each other and with a reference failure signal. Logic means connected to the comparator outputs provide an output identical to the output of one or other unit or to the failure signal in dependence upon the comparator outputs and upon a mode selection signal which determines whether the logic means is to operate in a low rejection mode (LRM) or a low substitution mode (LSM). In both modes the logic means provides an output identical to the recognition units' outputs if these outputs are the same. In the LSM mode a failure signal is given if the outputs are not the same. In the LRM mode a character-identifying signal is given if only one of the outputs is a failure signal, whereas if the outputs differ but neither is a failure signal either a failure signal is given or a more rigorous form of identification may be applied. The system may be implemented by hardware or software. Reference has been directed by the Comptroller to Specification 1351214.
Patent GB-740614-A (GB)
Title: Improvements relating to electrode assemblies for electron discharge devices
Inventor: JENNINGS ALBERT EDWARD
IPC: H01J29/48
Filed: 1951-10-17
Abstract: 740,614. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 9, 1952 [Oct. 17, 1951], No. 24172/51. Class 39 (1). One electrode of an electron discharge tube is supported on another by embedding a portion of an arm extending from one electrode in insulating material held in an aperture of the other electrode while the material is plastic and maintaining the position of the electrodes until the material hardens. A triode electron gun for a cathode-ray tube consists of a cylindrical cathode sleeve 1 supported by three radially extending arms 2 from a cylindrical anode 5. The ends of the arms 2 project into apertures 9 in the anode and are embedded in insulating cement 16 of paste form prepared by mixing alumina and potassium silicate. The control electrode 17 has three radial arms 20 and is supported in a similar way from the disc 22 at the top of the anode cylinder 5. The cylinder 5 and disc 22 may constitute the control electrode; in this case the anode is constituted by an element similar to 17, but on the opposite side of the disc 22, or by a wall coating. Jigs for assembling the electrodes in correct alignment and with correct spacings are described. Suitable dimensions for the electrodes and various elements are given.
Patent GB-225654-A (GB)
Title: Improvements in or relating to the electrical heating of buildings and the like
IPC: F24D13/02
Filed: 1923-09-28
Abstract: 225,654. Musgrave, J. L., and Grierson, Ltd. Sept. 28, 1923. Electric radiators.-In arrangements for electrically heating buildings in which resistances interwoven with strands of asbestos are incorporated in the walls in lengths or sections, the resistance wires A, interwoven with strands B of asbestos are arranged spaced from the walls D of the structure end enclosed by material E from which the heat radiates. The spaces between the resistances and the structure and enclosing material may be filled in with insulation such as slag wool.
Patent GB-156326-A (GB)
Title: Improvements in cylindrical slide valves
IPC: F01L5/04
Filed: 1919-10-06
Abstract: 156,326. Reysz (nÚe Gianella), E. E., and Reysz, F. Oct. 6, 1919. Slide valves, cylindrical. - Cylindrical slide valves for internal-combustion and other engines are formed with narrow grooves 2 which, during the compression and firing strokes, effect communication between the cylinder and cavities 4, of the same area as the cylinder ports 3 and formed in the valve case, whereby lateral pressures on the valve are balanced. Additional equalizing-passages in the valve casing or through the valve. may be provided, and the cavities 4 may be in communication. Combustion gases are exhausted at the top of the valve, and fresh charges are admitted on the under side of the partition 7, the heating of which by the exhaust gases is regulated by a perforated metal cup 9. The valve is packed by segments 10. Rotation of the valve is prevented by a key held in position by a cap 21 on the guide 16, and engaging a flat on the spindle 15. The valve may be formed by stamping, the portion 7, Fig. 5, being secured by oxy-acetylene welding. The valve may be made partly of aluminium, and partly of malleable cast iron or steel. A device 30 is provided upon which the plate 17 rests, to facilitate the withdrawal of the valves. Oil passages 13, 14 are provided.
Patent GB-948155-A (GB)
Title: Improvements in and relating to apparatus for the injection moulding of articles from synthetic plastic and other mouldable materials
Inventor: HARDY HENRY
IPC: B29C45/04
Filed: 1960-07-13
Abstract: 948,155. Injection moulding footwear. FOSTER YATES & THOM Ltd., and INTERNATIONAL VULCANIZING CORPORATION. July 3, 1961 [July 13, 1960], No. 24374/60. Heading B5A. Apparatus for injection moulding e.g. synthetic plastic soles and heels for shoes has a conveying system, Fig. 1, on which a series of mould assemblies, Fig. 3, are conveyed towards an injection moulding station 6, where they are displaced by a double acting pusher device 19 towards an injection device 20, the mould filled, and the assembly subsequently displaced from the station by an incoming assembly. Pusher devices 15 . . . 18 advance the assemblies in the required direction. The mould assembly, Fig. 3, which slides on rollers 4, has two lasts 32, 33 (for holding the shoe uppers) arranged so that a piston 31 forces last 33 downwards to complete the mould; injection takes place to form the sole and/or heel, after which the last is retracted together with the moulded part and the pistons are revolved about trunnions 29 by a rack and pinion arrangement 35; the operation then proceeds for last 32 and piston 30. The mould sections 21, 22 (Fig. 2) are operated by pneumatic cylinders 23, 24 through toggle links 25, 26. In a modification (Fig. 8, not shown) an endless horizontal conveyer of the roller type is provided. Another modification, Fig. 9, has inclined roller conveyers 46, 46a, 47 (seen in plan in Fig. 11, not shown). Mould assemblies 50 ejected from a lift 48 (dotted) slide on to the injection table 51 via conveyer 46, injection takes place and the assembly continues down conveyer 46a to platform 49 where it is raised to conveyer 47 and returned to the lift 48 (in full line position). Specification 831,193 is referred to.
Patent GB-366991-A (GB)
Title: Improvements relating to knitting machines
IPC: D04B7/04
Filed: 1930-08-14
Abstract: 366,991. Knitting. SCHATTMANN, E. and GOLDSCHMIDT, W., (trading as KORNICKER, L.), 54, Zietenstrasse, Erfurt, Germany. Aug. 14, 1930, No. 24422. Convention date, Aug. 15, 1929. [Class 74 (ii).] Relates to the production of rib fabric with solid or intarsia patterns joined together as shown in Fig. 10. The yarn guides 7 of a parallel machine are mounted between and displaced by stops 8 on bars 4, 5 which are reciprocated through connections 9, 11, 12, 13 by a slide bar 10 driven by hand or power in unison with the cam carriage. The positions of the bars 4, 5 and stops 8 &c. can also be changed while the carriage is stationary by amounts equal to the pitch of the needles or multiples thereof by movement of rack bars 14, 15 to which the bar 10 is connected. Pawls 22, 23 pivoted to a rockable handle 19 co-operate with the opposed teeth of the racks 14, 15. At the points where one guide is exchanged for another, the one which has been stationary is moved so far past the one about to move that one needle at least at the point of exchange is supplied with two yarns. Bolts 27, 28 retain the racks in adjusted position. In another form, the movement of the rocking lever which drives the cam carriage reciprocates a slide 47, with dogs 48 vhich co-operate with an horizontal slide 50 carrying pawls 53, 54 either of which according to the position of an adjusting lever 58, drives a shaft 36 by one or other of ratchets 37, 38 thereon. Racks 32, the bars 33 on which they are mounted and the threadguide bars to which they are connected are thus shifted longitudinally as required.