baber/WOPTO huggingface dataset:
Patent GB-1378568-A (GB)
Title: Memory arrangements
IPC: G02F1/133
Filed: 1972-05-19
Abstract: 1378568 Capacitor stores MARCONI CO Ltd 28 Feb 1973 [19 May 1972] 23549/72 Heading G4C [Also in Division H1] A store comprises a capacitor with liquid crystal material between the electrodes. Means is provided to charge the capacitor according to a data input signal, to read out the charge, and to erase the charge. A capacitor comprising electrodes 2, 4, Fig. 2, is charged by data on terminal 15 when terminal 17 of a MOST gate 13 is made positive. The charge is read out to terminal 30 by applying a positive read pulse to dual gate MOST gate 24. Charge on the capacitor may be erased by applying a negative potential to electrode 2 on opening MOST gate 22 or by applying an alternating potential to terminal 35. The "store may comprise a plurality of such capacitors, one electrode being common to each capacitor. The common electrode is formed by evaporating tin-oxide on to a glass substrate, and the other electrodes by evaporating aluminium, magnesium or tantalum on to a glass substrate.
Patent GB-336696-A (GB)
Title: Mechanism for operating hydraulic brakes
IPC: B60T11/08
Filed: 1929-08-01
Abstract: 336,696. Coatalen, L. Aug. 1, 1929. No Patent granted (Sealing fee not paid). Fluid - pressure. - In hydraulic brake mechanism the actuating lever or pedal for operating a master piston has a fulcrum which is slidable along the lever to vary the effective leverage as the pressure in the system or the movement of the pedal varies. The pedal 7 is pivoted at 6 to an arm 3 fixed to a shaft 4 supported in fixed bearings and carrying at its other end an arm 2 engaging the master piston 5 in a cylinder connected by pipe lines to the brakes. Pivoted on the shaft 4 is a forked link 8 embracing the pedal 7 and carrying a roller 9 which forms a fulcrum for the pedal, the position of which is varied by the fluid-pressure in the system, the link 8 being connected by a rod 10 to a piston 11 in a cylinder 12 communicating by a pipe line 13 with the pressure system. As the pressure increases the fulcrum 9 will be shifted nearer the pivot 6 increasing the leverage of the pedal. In a modification, the side of the pedal is so shaped where it engages the roller that as the pedal is depressed the roller is caused to move downwardly agaipst a spring, varying the leverage according to the movement of the pedal.
Patent GB-729017-A (GB)
Title: Improvements in or relating to circuits for measuring radiation intensities
IPC: G01T1/18
Filed: 1953-08-27
Abstract: 729,017. Geiger counter circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 27, 1953 [Aug. 30, 1952], No. 23692/53. Class 40 (3). In a radiation measuring circuit of the type in which a Geiger - Muller counter tube 3 is connected in series with an extinction resistor 2, a condenser 5 and resistor 1 are provided, the arrangement being such that as the pulse rate increases the voltage across the Geiger tube is progressively reduced. This enables mean Geiger current as indicated on meter 4 to be logarithmically related to radiation intensity. The reduction of the voltage is due to the fact that as the Geiger pulse rate increases the voltage across the condenser approaches the extinction voltage of the Geiger tube. In a modification (Fig. 2, not shown), resistor 1, counter tube 3, resistor 2 and meter 4 are connected across the supply terminals in that order, condenser 5 being connected in parallel with resistor 2 and meter 4. In order to obtain a particular shape for the curve of average current against radiation intensity, a number of circuits of the type shown in Fig. 1 in which all the Geiger are of different sensitivity, may be combined using a common meter 4 to indicate the sum of all the Geiger currents. The Specification states that a halogen counter of which the plateau between 300 and 1000 volts has a slope of about 1 per cent per 100 volts is suitable.
Patent GB-517940-A (GB)
Title: Improvements relating to the controlling means of fuel injection pumps for internal combustion engines
IPC: F02D1/00
Filed: 1938-08-11
Abstract: 517,940. Controlling fuel-injection pumps. C. A. V, BOSCH, Ltd., and MILLAR, D. Aug. 11, 1938, No. 23696. [Class 102 (i)] A pair of fuel injection pump control rods a, b are connected by a lever c the pivot e of which is carried by a lever f so that it may be moved to either end of a slot d in the lever c. In the position shown, actuation of the rod a will actuate the rod b; when the pivot pin is moved to the other end actuation of the rod a leaves the rod b unaffected. Ends of the slot d are equidistant from the pivot of the lever f, so that in the dotted line position of maximum fuel supply movement of the lever f will bring the rod b into the stop position. In modifications, each rod a, b is connected to a lever and these levers are linked by a rod, while either this rod or a second rod is fixedly pivoted on one of the levers and carries a pin moving in a slot in the other lever. The control rods may be collinear.
Patent GB-1200664-A (GB)
Title: Improvements relating to die casting furnaces
Inventor: CHIDGEY VINCENT
IPC: B22D18/04
Filed: 1967-05-22
Abstract: 1,200,664. Crucible furnaces. WALES FLUID POWER Ltd. 26 July, 1968 [22 May, 1967], No. 23733/67. Heading F4B. [Also in Division F1] In a die-casting furnace which comprises within a refractory-lined metal casing 3 a non- metallic crucible 4, the furnace casing includes an aperture 11 adapted to receive the furnace burner or burners (12, Fig. 2), which burners are interconnected with a sealing cover 15, and a flue exit 18 adapted to be automatically sealed through the action of compressed air operating a piston and cylinder 20, the seal for the flue exit 18 being arranged to operate in conjunction with the burner or burners 12 so that when the burners 12 are withdrawn from the furnace, the flue 18 is automatically sealed. The furnace also includes a top-plate 22 through which extends an injection tube 23, a thermocouple 25, and an inlet 26 connected to the source of pressure application to the furnace. In operation, when the burners 12 are removed from the furnace, the burner aperture 11 and flue 18 sealed, air pressure is admitted to the furnace, causing metal in the crucible to feed up the injection tube 23 into a die or dies positioned over same.
Patent GB-237898-A (GB)
Abstract: 237,898. British Thomson-Houston Co., Ltd., (Assignees of Langmuir, I.). July 30, 1924, [Convention date]. Heating by chemical action and molecular combination.-Heating is effected by dissociating hydrogen to the atomic state and utilizing the heat of recombination. In an example, applied to a scrap-melting furnace shown in horizontal section in Fig. 2, two electric arcs are used, one projecting into the chamber 1 where molten metal collects, and the other into a horizontal passage 4 leading to a stack. The electrodes 5, 6 and 5<1>, 6<1> are provided with regulating devices 7, 8, and a stream of dry hydrogen is supplied through the tube 11, which is watercooled and preferably tipped with refractory metal. The arc assumes a concentrated form with hydrogen at atmospheric or higher pressures and the hydrogen is dissociated into the atomic state. The latent heat set free when recombination takes place is utilized in the furnace, and oxidation is prevented by the atmosphere of hydrogen. In a welding apparatus, Fig. 3, the electrodes are each connected to an iron core within a coil 17. When a current flows in the coil, the core is lifted and a spring 20 is compressed. The length of the arc is controlled by a screw 22. A metal plate 23 above the arc contains ducts 24 for supplying low-pressure hydrogen to prevent oxidation, and high-pressure hydrogen is supplied by a conduit 26. The electrodes are insulated from the plate 23 by bushes 28, and are mounted on refractory supports 29. The welding metal 34 may be an easily oxidizable metal such as chromium, zirconium or aluminium, oxidation being prevented by the hydrogen. Fig. 4 shows the application to a furnace 37 in which cylinders 39, 40 are brazed. Hydrogen is introduced through a pipe 38 to maintain a reducing atmosphere, and a number of arcs 43, 44, &c. are operated in the hydrogen. The high conductivity due to the. presence of the atomic hydrogen enables the brazing temperature to be more readily obtained. Specification 237,901 is referred to.
Patent GB-917178-A (GB)
Title: Improvements relating to padding machines for use in the leather industry
Inventor: GAYTHWAITE WILSON ROBINSON
IPC: C14C15/00
Filed: 1960-07-07
Abstract: 917,178. Padding leather. MARTIN & BOLTON LEATHERS Ltd. June 19, 1961 [July 7, 1960], No. 23805/60. Class 76. A padding machine comprises a hide conveyer in the form of an endless rubber belt 1 having a horizontal upper run on which hides to be sprayed with a liquid finishing material are arranged symmetrically about the centre line of the belt while mounted in a machine frame 5 above the hide conveyer 1 is a pad conveyer which includes a pair of endless chains 6 spaced one above the other and each passed round sprockets 7 mounted on two vertical shafts 8, one of which is arranged on each side of the hide conveyer. Cross-heads 9 extend vertically between the chains 6 and each supports a vertically slidable rod 10 which carries a replaceable pad 11 of plush-covered rubber at its lower end with rounded lower working surfaces or flat circular working surfaces. Two cam tracks 12 are so arranged that the pads are lowered on to the hides carried by the hide conveyer 1 as the pads approach the centre line of the hide conveyer and are lifted clear of the hides and of the hide conveyer as the pads arrive at the side edge of the hide conveyer. The pads 11 are pressed on the hides by their own weight and the weight of the slidable rods 9. The hides tend to hold their position on the conveyer because the pads are arranged close to each other and because the hides are always engaged by pads moving in opposite directions (shown by arrows 14 and 15 in Fig. 2), since the two runs of the pad conveyer traverse the hides in opposite directions. The machine frame 5 is conveniently supported on four levelling screws 20, only one of which is shown in the drawings.
Patent GB-156312-A (GB)
Title: An improved writing desk
IPC: A47B81/02
Filed: 1919-09-29
Abstract: 156,312. Gibbings, R. J. Sept. 29, 1919. Writing-desks.-A writing-desk, bureau, or the like, adapted to be fitted into the corner of a room, has a table portion carrying two vertical walls which lie adjacent the walls of the room, and inclined sides rising from the other edges of the table to meet the vertical walls, one or more of the inclined sides being hinged to the table to fold down and form a plane extension thereof. Figs. 1 and 2 show such a structure, the inclined flaps 4, 5 being supported by runners 16, 17 when folded down, while in the modification shown in Fig. 4, supplementary folding flaps 23, 24 are provided. A small horizontal platform 12, 32 may be provided, and drawers may be fitted in the upper part and in the supporting-pedestals. The invention is stated to be applicable to washstands.
Patent GB-1055346-A (GB)
Title: Catalyst and process for the selective hydrogenation of acetylenic and diolefinic hydrocarbons
IPC: C07C5/08
Filed: 1965-06-04
Abstract: Diolefins and/or acetylene hydrocarbons contained in a charge of olefin hydrocarbons are selectively hydrogenated in the presence of a catalyst containing nickel and chromium uniformly distributed on a refractory oxide such that the catalyst contains from 0.02 to 0.2 mgm./m2., and the other hydrogenation conditions being: Temperature 100 DEG  to 300 DEG  C. Pressure 50 to 70 atmospheres.  Space velocity 500 to 520 v./v./hr.ALSO:Chromium and nickel are deposited on a refractory oxide support such that the resulting catalyst contains 0.02 to 0.2ngm/sq. m.  Specified supports are a -Al203, SiO2 or SiO2-Al203.  Impregnation of the support is preferably offected by use of Ni Cr207 solution.  The catalyst may have a surface area of 343 sq. m/gm. and be shaped as desired.
Patent GB-1118524-A (GB)
Title: Improvements in or relating to the treatment of water
Inventor: JEAVONS WALTER JAMES
IPC: B01J39/00
Filed: 1966-05-27
Abstract: 1,118,524. Demineralising water. JOHN THOMPSON-KENNICOTT Ltd. 23 May, 1967 [27 May, 1966], No. 23975/66. Heading B1J. A trap ion-exchanger used, in a complete dimineralising process, to remove organic matter is prevented from overloading with bicarbonate or carbonate ions by adding to the raw water before the trap resin water containing free mineral acidity. In an example the acidity may be supplied from water which has been through the cation exchanger 15 and is supplied by pipe 23 and/or 24.
Patent GB-1099665-A (GB)
Title: A flexion-type symmetrical oscillator for a timepiece
IPC: G04B17/04
Filed: 1966-05-27
Abstract: 1,099,665. Clocks and watches. EBAUCHES S.A. May 27, 1966 [May 28, 1965] No.23982/66. Heading G3T. [Also in Division F2] An oscillator for an electric timepiece comprises a U-shaped part 1, la having two flexible arms 1 and two rigid arms 1c integrally attached to the flexible arms adjacent their free ends so that the centre of oscillation and the centre of gravity of each pair of arms 1, 1c are coincident, thereby ensuring that the frequency of the oscillator is independent of its position and orientation in the field of gravity. A lug 1b attaches the oscillator to its support (not shown) and weights 4 counterbalance the members 3 which form part of the device (not shown) for maintaining the vibrations of the oscillator. In modifications, the two rigid arms may be brazed or glued to the flexible arms, or the flexible and rigid arms respectively may be in parallel superimposed planes, or the flexible arms may be embedded in a support and the rigid arms riveted to the flexible arms, counterbalancing weights being formed integrally with the rigid arms.
Patent GB-1103454-A (GB)
Title: Traffic bollards
IPC: E01F9/615
Filed: 1965-06-04
Abstract: 1,103,454. Road signs. HALE & HALE ENGINEERS Ltd. 25, May, 1966 [4, June, 1965], No. 24008/65. Heading E1G. A traffic bollard has a lamp housing connected to a base such that a blow will sever the connection without damage to the base. A tubular sheet metal base has a spigot sleeve projecting from the upper end for the reception of the bollard lamp house, the sleeve and lamp house being held together by shear bolts. The electricity supply for a fluorescent lamp, attached to the top of the lamp house, has a plug connected which parts when the lamp house is parted from the base.
Patent GB-742756-A (GB)
Title: Improvements in panels bearing indicia
IPC: B64D47/00
Filed: 1953-08-31
Abstract: 742,756. Indicators for switches. NEUGASS, E. A. Aug. 31, 1953, No. 24032/53. Class 38(5) [Also in Groups XVIII and XIX] An instrument panel 10 comprises adjacent layers 11, 12, 13 of transparent, translucent and opaque material with means 18 for admitting light to the transparent layer 11 to transilluminate the translucent layer 12 at a plurality of openings 14...17 in the opaque layer 13 defining indicia and a light reflection coating 20 covering the portions of the rear surface of the transparent layer 11 registering with certain openings in the opaque layer so that the transillumination at all the openings is of uniform intensity. The transparent layer 11 is preferably of methyl methacrylate with a relatively thin layer, coating or film 12 of light coloured, preferably white, translucent material superimposed in front preferably of a polyvinyl or vinyl resin, a polymer or co-polymer thereof, e.g., polyvinyl chloride, vinyl chloride-acetate co-polymer, polyvinylidene chloride or vinyl chloride-vinylidene chloride co-polymers. The opaque layer 13 may be a vinyl resin, preferably with a matte finish and of a dark, preferably black, colour. Panel lights are inserted in suitable holes and are preferably-enclosed in a coloured niter 19, red for example. The coating 20 registering with the holes 15, 16, 17, furthest from the lamp 18 is preferably formed of translucent white vinyl resin and an opaque layer 21 superimposed thereon is preferably of a dark coloured plastic material. A rear shield 22, preferably of metal, has on the edge portions of its front face a coating 23 of dark material, e.g., a paint with a matte finish to prevent forward reflection from the edges of the panel which are also similarly coated. Specification 692,195 is referred to.
Patent GB-876491-A (GB)
Title: Improvements in or relating to filamentary material of high tenacity and initial modulus
IPC: D02J1/22
Filed: 1958-07-25
Abstract: Oriented filamentary materials of linear fully synthetic organic polymers having recurring units comprising cyclic groups connected by functional linkages, said polymers having a glass transition temperature of at least 180 DEG C. and an initial sonic modulus of at least 50 gms. per denier, as determined on the as-spun fibre, and said oriented materials having a tenacity at room temperature of at least 9 gms. per denier and an initial modulus of at least 180 gms. per denier, are made by extruding the organic polymer through at least one orifice and drawing the filamentary material so obtained while the polymer is in the substantially amorphous plastic state at a temperature above its glass transition temperature and below its melting temperature. The polymeric material may be a polyurea, especially a reaction product of 2, 5-dimethyl piperazine and a diisocyanate, e.g. biphenylene-4-41-diisocyanate and 3, 31-dimethyl-4-41-diisocyanate biphenylene, or a polyamide, e.g. the reaction product of 3, 31-dimethyl-4-41-diaminobiphenylene and isophthalic acid.  Other specified polymers include those made from m-phenylene diamine and isophthalic acid, 1, 4-cyclohexane dioxime and biphenylene-4-41-diisocyanate, tetramethyl piperazine and 3, 31-dimethyl-4-41-diisocyanatobiphenylene, 2, 5-dimethyl-N-N1-diamino piperazine and either isophthalic acid or bibenzoic acid, and from 2, 5-dimethyl piperazine and phenylene-1, 3-diisocyanate.  Polymers and copolymers may also be selected from polysulphonamides, polyesters, polyethers, polyurethanes, polyesteramides, and polycarbodiimides, the cyclic groups being carbocyclic or heterocyclic.  A plurality of filaments may be formed by extrusion through a spinneret, and may be drawn while passing through a heated zone having a curvilinear temperature profile, the peak temperature of the profile being above the glass transition temperature and below the melting temperature of the polymer.  Filaments so made have a tenacity and modulus comparable with glass fibres, but a lower density and higher flex-life.
Patent GB-204716-A (GB)
Title: Improvements in or relating to bodies for vehicles
IPC: B60P1/06
Filed: 1923-09-27
Abstract: 204,716. Soc. Anon. des Bennes Automatiques, (Assignees of Burtey, J.). Sept. 27, 1922, [Convention date]. Catches, automatic.-In a tipping cart, the tipping body is secured tc the shafts by means of bolts 32, Fig. 2, mounted on a spring controlled sliding bar 33 and engaging staples 30 fixed in the body. The fastening is released automatically on backing the cart against a fixed stop 56, Fig. 3, by means of a rod 50 sliding in guides and engaging the boltcarrying bar 33 by means of a bell-crank lever. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a hand-lever to release the fastening instead of the automatic means. This subject-matter does not appear in the Specification as accepted.
Patent GB-237135-A (GB)
Title: Improvements in umbrellas, parasols and the like
IPC: A45B25/18
Filed: 1924-10-13
Abstract: 237,135. Munn, D. S. Oct. 13, 1924. Covers.- The covers of umbrellas, parasols &c. are ornamented by attached trimmings of indiarubber. A frill a bunched on to an extensible band can be secured to the edge of the cover, and rosettes b or flat pieces of sheet india-rubber in the form of stars, flowers &c. can be secured to the surface of the cover.
Patent GB-1002743-A (GB)
Title: Improvements in change-speed transmission mechanism driven by fluid pressure driven motors
IPC: F16H63/34
Filed: 1964-06-11
Abstract: 1,002,743. Change-speed gears. GESELLSHAFT FUR LINDE'S EISMACHINEN A.G. June 11, 1964 [July 27, 1963], No. 24198/64. Heading F2D. Movement of a selector rod 17 of a twospeed sliding wheel gear 7 in series behind a hydrostatic transmission is prevented by a locking mechanism 21 when a by-pass valve 23 connects a motor 1 to a variable displacement pump. The locking mechanism comprises a dog 21 fast with the by-pass valve operating lever 22 which dog engages recesses 19, 20 in the selector rod 17. For ratio shift the lever 22 is moved clockwise to release the selector rod 17 and to operate the by-pass valve 23 which short circuits the motor 1 whereupon the selector rod is free to shift axially the gear pair 8, 9. A flexible coupling 5 is provided between the motor output shaft 4 and gear input shaft 6.
Patent GB-1145092-A (GB)
Title: Improvements in insulated gate field effect semiconductor devices
Inventor: LIGHT LEON HENRY
IPC: H01L29/78
Filed: 1965-06-09
Abstract: 1,145,092. Semi-conductor circuits. MULLARD Ltd. 18 May, 1966 [9 June, 1965], No. 24376/65. Heading H3T. [Also in Division H1] An oscillator-mixer circuit employs an I.G.F.E.T. comprising a substrate 45, source and drain regions 41, 44, and a pair of parallel gate electrodes 42, 43. A tuned circuit 49 is inductively coupled to a coil 50 connected between the substrate and earth, and an I.F. tuned circuit 48 is connected to the drain region 44 in series with a coil 51 which supplies a feedback voltage to the circuit 49. A tuned circuit 46 supplies the input signal to the gate electrode 43 together with an AGC voltage derived from a source 47.
Patent GB-776540-A (GB)
Title: Improvements in lead coated copper rods and tubes
Inventor: BROOKER KENNETH RICHARD
IPC: B21C23/24
Filed: 1953-09-03
Abstract: 776,540. Making anodes for electrolysis; extruding. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Sept. 2, 1954 [Sept. 3, 1953], No. 24380/53. Classes 83 (2) and 83 (4). Anodes used in chromium plating processes are formed by extruding a tightly fitting lead tube over a copper rod or tube. First, the copper is coated with a low melting point alloy, e.g. soft solder " D," British standard 219, which softens below the extrusion temperature of the lead, by hand or dipping. Secondly, the copper is heated to a temperature which is above the softening temperature of the alloy and near the extrusion temperature of the lead by gas burners and which is measured by a padshaped pyrometer fitting the copper surface. A further coating of alloy is applied and the copper is urged into the extrusion press.