baber/WOPTO huggingface dataset:
Patent GB-172696-A (GB)
Title: Improvements in number plates for motor cycles and other motor vehicles
IPC: B60R13/10
Filed: 1920-09-03
Abstract: 172,696. Taylor, T. Sept. 3, 1920. Name and number plates.-A vehicle number plate is built up of a supporting plate a of steel or other strong metal and a plate e of aluminium riveted or otherwise secured thereto. Each plate may bear letters and numerals, each of which is preferably formed separately of aluminium and riveted to its respective plate. The aluminium plate e has a fillet on both sides along its top and side edges, the fillet on the side on which the steel plate lies being deeper. The plate e may also have a fillet cast along the bottom edge, and the plate a may have an aluminium fillet riveted to it in the corresponding position. The steel plate extends beyond the aluminium plate on any desired side for attachment to the vehicle.
Patent GB-481893-A (GB)
Title: Improvements in or relating to modulated carrier wave receiving installations
IPC: H04N5/60
Filed: 1936-09-18
Abstract: 481,893. Wireless receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and LINSELL, A. A. Sept. 18, 1936, No. 25480. [Class 40 (v)] In a receiver designed for the simultaneous reception of two short wave programmes, such as sound and television, alternatively with single programmes on a longer wave length, the local oscillation for long wave reception is obtained by beating two oscillations derived from the short wave channels. Either or both of these oscillations is adjustable by the main tuning control which preferably has a special position marked " Television'" in which the circuits are set to two predetermined frequencies. In one arrangement, Fig. 1 (not shown) the short wave local oscillators supply the long wave local oscillation. In a modification, Fig. 2, switches S1, S2 convert the short wave amplifiers HFS1, HFS2 to oscillators. In both cases the short wave oscillations are preferably fed to separate grids of a pentode mixing valve OA, though the mixer may be fed with a single frequency derived by beating the short wave oscillations in separate apparatus. In a further modification, not described in detail, one oscillation is provided by a short wave oscillator and the other by a converted short wave amplifier.
Patent GB-711378-A (GB)
Title: Improvements in or relating to very high frequency cavity resonators
Inventor: GOODENOUGH ERNEST FREDERICK
IPC: H01P7/06
Filed: 1951-11-01
Abstract: 711,378. Electrical cavity resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 31, 1952 [Nov. 1, 1951], No. 25598/51. Class 40 (8) A very high frequency cavity resonator system comprises two resonators 1 and 2, coupled together by the ring of eight holes 4, in the metallic diaphragm 3, the holes being so placed that the coupling is in the H 01  mode only. Resonator 1 is relatively small, having a relatively low Q value and operating in the H 01  mode only over the required frequency range. Resonator 2 is relatively large, having a relatively high Q value. The resonators are tuned independently by concentric screw-in probes 5, 6, the latter, for the high Q resonator, passing through a movable piston 7 which is screwed on to the body so that fine tuning is given by probe 6, and coarse tuning by piston 7. The response curve of this arrangement may be regarded as the superimposition of the sharp response of the high Q resonator on the flat response of the low Q resonator in opposition. A band-pass filter of similar construction, but having two high Q resonators and two low Q resonators is described with reference to Figs. 2 and 2a (not shown).
Patent GB-1293313-A (GB)
Title: A timebase mechanical vibrator
Inventor: HATSUSE TOSHIKAZU
IPC: G04C3/10
Filed: 1971-04-19
Abstract: 1293313 Clocks and watches CITIZEN WATCH Co Ltd 19 April 1971 [28 March 1970 31 March 1970 25 Dec 1970] 25662/71 Heading G3T A timebase mechanical vibrator has three parallel oscillatory arms 10b, 10b<SP>1</SP> and 10c, the ratio of the width of each of the outer arms to that of the central arm being n:2 where n is a positive integer larger than unity. The outer arms respectively carry the sensing magnet 17 and the drive magnet 18, associated with the coils 20,21 connected in the transistor circuit 23. The central arm 10c carries at its free end an indexing magnet 19 which co-operates with a magnetic wheel 22 having teeth 22a and apertures 22b, the wheel being the drive for the conventional time-piece gear train.
Patent GB-281436-A (GB)
Title: Improvements in and relating to steam generators and liquid containers under pressure
IPC: F22B37/54
Filed: 1926-10-15
Abstract: 281,436. Tranter, W. J. Oct. 15, 1926. Blow-down apparatus comprises a pipe or pipes which may be in two or more seetions a, b, having at intervals a number of downwardly directed bell mouths q disposed e.g. # to 3/16 of an inch from the boiler plates by supports d. The fore end of the pipe is connected to a bend e which leads to the blow-off valve f, a st.av g with a slidable cross member being provided between the boiler flues. Two further pipe sections o branch off from a bend m on each side of the gusset plate p. A scum collector funnel r facing the front of the boiler at the water lead is connected by a down pipe s with the system. The pipes may be attached by clips to the gusset plates or to cleats riveted to the shell or suspended by means such as turnbuckles between the heating tubes.
Patent GB-639065-A (GB)
Title: Wave-signal sampling arrangement
IPC: H04N5/16
Filed: 1947-09-22
Abstract: 639,065. Automatic frequency and phase control systems. HAZELTINE CORPORATION. Sept. 22, 1947, No. 25746. Convention date, Oct. 4, 1946. [Class 38 (iv)] [Also in Groups XXXVI and XL (c)] To derive a potential representative of the amplitude of a wave during a small sampling period, the wave is applied to the anode or cathode of a valve, and the valve is made conducting, e.g. by a pulse applied to its grid, the valve ceasing to conduct at the end of the period as a consequence of its becoming conductive, the current through the valve producing the representative potential. As shown in Fig. 1, the wave is applied from 10 to the cathode of gas-filled valve 11 whose anode is fed from a condenser 17 ; the valve is normally non-conducting, and when a pulse is applied to the grid 14 it conducts until condenser 17 is. discharged, the screen grid current charging condenser 23 to a potential related to the amplitude of the wave applied from 10 during the period of conduction. The condenser 17 may be connected to the cathode of valve 11 instead of to earth, Fig. 2 (not shown). A hard valve may be used in place of the gasfilled valve, the duration of the pulse applied to the grid being made longer than the period of conduction; the condenser 23 is then charged to a potential corresponding to the amplitude of the wave at the end of the period of conduction. Application to synchronizing. -In Fig. 3 it is desired to produce pulses at 33 in synchronism with a 60-cycle A.C. supply; a timing impulse generator 40 applies triggering pulses to gasfilled valve 30 whose anode is fed with the A.C. supply so that a potential is developed at 35 related to the phase between the A.C. supply and the pulses from 40; this potential is applied to a reactance valve 45 to vary the frequency of the generator at 40 until it is in phase with the A.C. supply, when the pulses developed at 32, 33 will be in phase with the A.C. supply. The combination 33, 34 renders the valve 30 non-conducting shortly after it has been made conducting. In Fig. 4 the circuit of Fig. 2 is applied to synchronizing the line-scanning generator with received television synchronizing signals. Sawtooth oscillations developed by valve 65 are applied to the cathode of valve 11 which is triggered by the synchronizing signals from 61 to develop a potential at 78 dependent on the phase relation of the synchronizing signals and the sawtooth oscillations; this potential is applied to the grid of valve 65 to modify the frequency of the sawtooth oscillations to maintain synchronism. Specification 650,102, [Group XL (b)], is referred to.
Patent GB-1263786-A (GB)
Title: Apparatus for connecting a marine conductor to a wellhead assembly
Inventor: PETERSEN WILLIAM HENRY
IPC: E21B41/10
Filed: 1969-05-21
Abstract: 1,263,786. Wells &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 21 May, 1969 [23 May, 1968], No. 25847/69. Heading E1F. A marine conductor 42 yieldably supportted by a vessel has a connector 43c for engagement with the entry mandrel 28 of an underwater wellhead 21, and a pull down device 60 having a latch 74 adapted to engage a post 30 fixed to the wellhead, the device pulling the connector onto the mandrel after the latch has engaged the post. The device comprises an hydraulic cylinder and piston, the cylinder 63 being fixed to the conductor, and the piston rod 70 carrying the latch which is hydraulically operated. The device is guided to the post along a line 31 extending from the post to the vessel, and the connector is aligned with the mandrel by a pin 82 on the connector engaging a cam 83 on the post. The line is part of the arrangement for guiding a marine conductor and described in co-pending Application 25846/69.
Patent GB-532635-A (GB)
Title: A multi-cylinder rotary pump
IPC: F04B1/20
Filed: 1939-09-15
Abstract: 532,635. Swash-plate pumps. ANSALDO SOC. ANON. Sept. 15, 1939, No. 25945. Convention date, Sept. 22, 1938. [Class 102 (i)] A rotor 16, formed with cylinder bores 17 parallel to the axis, turns on a fixed cylindrical pivot 5 having inlet and outlet passages 10, 11 leading to passages 6, 7 in the outer casing, and carries a pivot 19 driven through a clutch. The pistons are driven from a ring in a cup 22 adjustably inclinable by a handle 26 to vary the amount or reverse the direction of flow. The fluid thrust in the cylinders, which is transmitted to the bearing surfaces 27 is compensated by an equalizing chamber 30 at the base of the recess enclosing the pivot 5, to which chamber fluid under pressure is led through a passage controlled by a piston valve 32 moved by the delivery pressure.
Patent GB-1397444-A (GB)
Title: Corrugated pipes or tubes
IPC: F16L11/16
Filed: 1972-06-02
Abstract: 1397444 Seaming; making helically wound tubing L WESTERBARKEY 2 June 1972 [4 June 1971] 25963/72 Headings B3A and B3J [Also in Division F2] A flexible, helically corrugated pipe (Fig. 9), comprises two layers, each layer being made from a respective strip of sheet material by helical winding, wherein the edges of the strip forming the inner layer are folded together, and the edges of the strip forming the outer layer are situated between each pair of folds of the inner layer and are folded into a button or mushroom shaped fold which incorporates a corrugation of the inner pipe. As shown (Fig. 1a), a first strip 3 of corrugated material is fed on to a mandrel 1 which rotates in the direction of arrow A, and the overlapping edges are progressively deformed into a fold by rollers 2, 4, 5. The inner tube passes off the mandrel 1 and is surrounded by a helically wound corrugated strip 8 such that the overlap of the edges of strip 8 lies between the folded seams of the inner pipe. A pair of co-operating rollers 6, 7 fold the overlapped edges of strip 8 and the incorporated corrugation of the innertube to a mushroom or button shape (Fig. 8). The pipe may be of metal (e.g. high grade steel) or plastics material. It is stated that the pipe thus produced combines strength, flexibility, and fluid tightness.
Patent GB-1243042-A (GB)
Title: Anthraquinone compounds
Inventor: GREENHALGH COLIN WILLIAM
IPC: C09B5/60
Filed: 1968-05-30
Abstract: 1,243,042. Anthraquinine compounds. IMPERIAL CHEMICAL INDUSTRIESLtd. 29 April, 1969 [30 May, 1968], No. 25984/68. Heading C4P.  The invention comprises dyestuffs of the general formula.  wherein, R<SP>1</SP> and R<SP>2</SP> are H or an optionally substituted hydrocarbon or heterocyclic radical, or R<SP>1</SP> and R<SP>2</SP> may form with the carbon atom a 5- or 6-membered ring which may be heterocyclic and rings A and B, may be further substituted. Preferably the dyestuffs are free from acid water-solubilizing groups and are substituted para to the -NH- of the heterocyclic ring. They, are prepared by reacting, a 1-amino-2-methylol with an aldehyde or ketone R<SP>1</SP>(R<SP>2</SP>)C=O and when R<SP>1</SP> and R<SP>2</SP>, are,bdth H by reacting an optionally substituted l-aminoanthraquinone-2-sulphoniÞ acid with at least 2 'molecular , proportions of formaldehyde 'in presence of a reducing agent. and, an alkaline agent .and acidifying the 2-methylol compound formed to effect formation of the heterocyclic ring. 'The dyestuffs give greenish blue and red shades, on wool, silk, synthetic polyamides, polyacrylonitrile polyesters and cellulose acetates.
Patent GB-655598-A (GB)
Title: A timing device
IPC: G04F1/06
Filed: 1948-10-05
Abstract: 655,598. Timing devices. DUNNET, D. Oct. 5, 1948, No. 25991. [Class 139] A " liquid " hour-glass, Fig. 1, is formed by a tube 1 divided at its centre into two compartments by a block 2. The compartments are interconnected by two passages 3 and 4, one of which is at the periphery of the block, and contain a liquid and air respectively. In another example, Fig. 2, two non-miscible liquids are used and the tube 1 is supported by a band 6 so as to be rotatable about its larger axis and is tiltable about the axis 7. In this case the passage 3 is at the periphery of. the block 2.
Patent GB-1461296-A (GB)
Title: Fish boning tools
IPC: A22C25/16
Filed: 1974-06-12
Abstract: 1461296 Knives PRODUITS FINDUS SA 22 May 1975 [12 June 1974] 25992/74 Heading B4B A fish boning tool comprises a pair of slicing knives 11 interconnected by a secondary knife 13 having a cutting edge 14 extending transversely of the cutting edges 16 of the knives 11, the slicing knives and the secondary knife co-operating to provide a combined slicing and scraping action in use of the tool. The cutting edges 16 are of arcuate shape and blend into straight non-cutting or blunted portions 17; alternatively, the cutting edges 16 may be straight and may be inclined to the non-cutting portions 17. In a further modification, instead of the knives 11 being parallel as shown, they may be inclined to each other so that in combination with the knife 13, a V-shaped crosssectional strip is removed from the flesh of a fish during use.
Patent GB-1317852-A (GB)
Title: Photosensitive materials utilizing perazido compounds
IPC: G03C1/695
Filed: 1971-04-19
Abstract: 1317852 Photo-sensitive materials AMERICAN CYANAMID CO 19 April 1971 [17 April 1970 19 Oct 1970] 26130/71 Heading G2C A photo-sensitive material comprises a support coated with a layer containing a polymer in which is dispersed a volatile peri-azide compound which is 1, 8-diazidonaphthalene, 1-acetamide-8-azidonaphthalene, 1-azido-8-trifluoroacetamidenaphthalene, 1-amino-8-azidonaphthalene or 1- azido-8-hydroxy naphthalene. The material may contain a sensitizer. Specified binders are polyvinyl chloride, polyethylene, polymethylmethacrylate, cellulose acetate and copolyners of these polymers. Specified sensitizers are fluoranthene, thioxanthrone, fluorenone, penylene, benzanthrone, benzophenone, phenozine and thioacridone. The materials containing the peri-azido compound may be imagewise exposed to produce a greygreen or brown image which may be intensified to purple by heating to 100-150‹C. Further heating at 180‹-200‹C. or exposure to ultra-violet light changes the image to grey. The first heating step also fixes the images as the volatile ozide is removed from the unexposed areas.
Patent GB-144947-A (GB)
Title: Improved cradle or connector for the drawbars of railway vehicles and the like
IPC: B61G9/22
Filed: 1919-10-24
Abstract: 144,947. Willans, G. H., and Luard, E. S. Oct. 24, 1919. Draw-gear.-A draw-bar cradle is formed of side bars 1 the ends of which are formed as shown so as to engage on either side of an end plate 2, the parts being locked in the assembled position by a plate 3 riveted to the member 2 and provided with side lugs 7 which engage between the bars. The bars 1 are V-shaped and are riveted at the bend to a plate 10 which has lateral projections 11 to stiffen the bars and prevent them spreading. The bars may be shaped to engage plates 2 provided at each end of the cradle. Each side of the cradle may be formed of one bar only, the locking plate 3 being modified to hold the bars in position.
Patent GB-272748-A (GB)
Title: Process for the production of alumina
IPC: C01F7/20
Filed: 1926-10-20
Abstract: 272,748. Mond, A. L., (I. G. Farbenindustrie Akt.-Ges.). Oct. 20, 1926. Alumina is produced from clay &c. by dissolving the clay in acid, separating the insoluble silicic acid from the solution, evaporating said solution and heating the salts thus obtained to decompose them into oxides and acids, and heating the oxides thus obtained with a reducing agent such as carbon in a suitable, preferably electric, furnace until the mixture is decomposed into alumina and iron, and an easily separable metallic regulus is formed. Bauxite, leucite, phonolite and the like may be thus treated. In the treatment of bauxite dilute sulphuric acid is used for dissolving to ensure a complete separation of titanic acid.
Patent GB-518894-A (GB)
Title: A process for liberating plant fibrils
IPC: D01C1/02
Filed: 1938-09-07
Abstract: 518,894. Preparing fibres from cellulosic materials. JACKSON, L. MELLERSH-. (Allen, J. W., Kent, E. E., and Packer, H. W.). Sept. 7, 1938, No. 26172. [Class 2 (ii)] Decorticated fibres are subjected to treatment with a hot aqueous alkali solution in which the strength of alkali is equivalent to a concentration of one third to one half of one per cent of sodium carbonate, the solution containing also neutral soap in a concentration of one fifth of one per cent. to one per cent. of the weight of the solution. Preferably, the alkali used is sodium carbonate but an equivalent quantity of a mixture of sodium carbonate and sodium sulphite, or of caustic soda and'sodium sulphite may be used. Thus, there may be used a solution containing 0.1 - 0.3 per cent. of caustic soda and 0.2-1.0 per cent. of sodium sulphite, or 0.5-1.0 per cent. of crystallised sodium carbonate and 0.2-0.75 per cent. of sodium sulphite. The treatment is such that alkali-soluble cementitious matter is removed and the plant fibrils are liberated. The fibrils are protected from degeneration by the alkali by the presence of the soap dispersion. When the alkali is obtained by dissolving crystallised sodium carbonate there is used about 0.9-1.3 per cent. of this salt based on the weight of water. The treatment is preferably carried out at the boiling point of the solution and at atmospheric pressure, and the solution may be in a state of vigorous ebullition. To obtain an effective dispersion of the soap used, the soap may be added in finely divided form into boiling water. The soap may be mixed with the soda before being dissolved. The treatment is applicable to the treatment of bast or leaf fibres of hemp, jute, ramie, flax, manila, sisal, pita, bear grass, cabuya, and other plants. The process is carried out until the desired degree of separation of the fibrils has been attained. It may be carried out on fibres in loose state or after they have been woven into cloth as in the case of burlap. The treated fibres may be formed into felts, wadding, or fabrics.
Patent GB-208269-A (GB)
Title: Hydraulic turbine
IPC: F03B3/18
Filed: 1922-09-29
Abstract: 208,269. Schmidt, F. Sept. 29, 1922. Working-fluid supply ; combined-flow type; regulating.-In a hydraulic turbine wherein the fluid is delivered transversely of the turbine axis through fixed guide-vanes in the conduit and an inner ring of adjustable guide-vanes, one at least of the fixed guide-vanes is different in form or position from the other fixed-guide vanes. As shown in Fig. 1, the fixed guide-vanes 6 at the largest cross-section of the conduit 3 are set at a different angle, the difference being indicated by the dotted lines, which are at the same angle as the other fixed guide-vanes 4, 5, 7. The fixed guide-vanes also decrease in length towards the end of the supply conduit 3. Rings 11, 12 spaced by the fixed guide-vanes and secured to the concrete setting by angle and channel rings 30, 28 support the turbine structure, the upper and lower casings 20, 16 of which carry the adjustable guide-vanes 27. The turbine impeller 8 is formed with a rim 17 co-operating with the lower turbine casing 16 and a draft tube 10. A casting or sheetmetal casing may form the inlet conduit.
Patent GB-1151915-A (GB)
Title: Improvements relating to Fluid Logic Elements.
Inventor: RETALLICK DAVID ARTHUR
IPC: F15C3/00
Filed: 1966-06-14
Abstract: 1,151,915. One way valves. NATIONAL RESEARCH DEVELOPMENT CORP. 13 Sept., 1967 [14 June, 1966], No. 26504/66. Heading F2V. [Also in Division G4] A one-way valve comprises a foil 2, Fig. 1, in a circular or rectangular chamber 5, the chamber having an inlet port 4 and an outlet port 6, and a bleed passage 8 so that in the event of reverse flow the foil will not " stick " to the bottom surface 7 of the chamber. The device can be constructed either by etching photo-sensitive material or by injection moulding. The foil may be constructed of polythene.
Patent GB-601753-A (GB)
Title: Multiple helical finned tubing and method of manufacturing the same
IPC: F28F1/36
Filed: 1945-10-10
Abstract: 601,753. Rolling finned tubing. CALUMET & HECLA CONSOLIDATED COPPER CO. Oct. 10, 1945, No. 26516. Convention date, Jan. 17. [Classes 83 (ii) and 83 (iv)] Finned tubing is made by rolling simultaneously a plurality of interspersed helical fins from the tube wall. A double helical fin is made by rollers A, B, C, A<SP>1</SP>, B', C<SP>1</SP>, axially positioned by spacers G, H and arranged about the tube. Treble fins may be rolled and the fins may vary in depth.
Patent GB-439904-A (GB)
Title: High-tension-proof roentgen tube
IPC: H05G1/04
Filed: 1934-09-15
Abstract: 439,904. R÷ntgen-ray apparatus. RADIOLOGIE AKT.-GES., 146, K³rf³rstenstrasse, Berlin. Sept. 15, 1934, No. 26578. Convention date, Sept. 15, 1933. [Class 98 (i)] [See also Group XL] An earthed metal jacket surrounds the part of a R÷ntgen-ray tube where the rays are emitted and is spaced from the tube by a " condenser " consisting of layers of air or other insulation separated by a medium of great dielectric strength. The glass tube 1 is surrounded successively by a layer 4 of lead-rubber, shells 5, 6 of the insulating material sold under the Registered Trade Mark " Pertinax " and outer earthed shells 7, 8 respectively of lead and another metal. The shells 5, 7 are separated by layers of air, and windows W are provided for the rays. The ends of the tube are surrounded by grating- like hoods 10 earthed through the shell 8. A cooler 14 is separated from one hood 10 by an insulating envelope consisting of curved vanes 15 and of an apertured end disc 16 to prevent sparking between the cooler and hood whilst allowing air circulation. Bent tubes may pass through the disc 16 to conduct away at right angles air moving axially of the tube. The window for the rays may be at one end of the tube, the rest of the tube being surrounded by a single hood.