baber/WOPTO huggingface dataset:
Patent GB-1517814-A (GB)
Title: Device to emit shock waves with adjustable capacity
IPC: G01V1/116
Filed: 1976-06-15
Abstract: 1517814 Seismic generators SOC NATIONALE DES PETROLES D'AQUITAINE 15 June 1976 [20 June 1975] 24697/76 Heading G1G In an underwater seismic generator comprising a valve 25 axially displaceable in a barrel 1 to allow a combustion chamber 5 to communicate with the outside, the combustion chamber is provided with at least two (preferably four) removable plugs 5a evenly spaced around its circumference, each plug comprising a cavity in communication with the combustion chamber, whereby the volume of the chamber can be altered by fitting plugs with different size cavities. In use, compressed air is admitted via an electrovalve into chamber 35 forcing valve 25 downwards and piston 32 upwards to compress the combustion gas above its upper surface before it is injected into the plug cavities through nozzles 24 where it mixes with compressed air (or oxygen-enriched air) permanently injected at 6 and ignited by means (not shown) in bore 8. Then, in one mode of operation, the combustion products apply sufficient axial force to the tapered portion of the valve 25 to displace it upwardly, thereby releasing the seismic pulse; or, in another mode, the compressed air in chamber 35 is released to enable the combustion products to open the valve 25.
Patent GB-580638-A (GB)
Title: Improvements in or relating to braking systems for vehicles
IPC: B60T13/16
Filed: 1944-12-11
Abstract: 580,638. Fluid-pressure braking systems. AUTOMOTIVE PRODUCTS CO., Ltd., and PARNELL, F. G. Dec. 11, 1944, No. 24832. [Class 103 (i)] In a vehicle braking system of the type operated by closure of a valve in the normally free circuit of a pump to build up pressure to operate a hydraulic motor, two such pumps are used: one driven by the engine and one by a part of the transmission coupled to the road wheels. Pumps 41, 42, driven by the engine 46 and the transmission 49, respectively, are fed from a reservoir 32 by means of pipes 44, 45 and normally circulate liquid through pipe 39, normally open valve 34, 35 in the master cylinder 26, a bore 33 in the master cylinder piston 27 and an annular chamber 30 in permanent connection through a pipe 31 with the reservoir 32. Partial closure of the valve 34, 35 by means of pedal 37 causes pressure to build up in the working space 38 and to move the piston 27 to the right to apply the brakes 11, 15, 16 by means of pressure fluid in chamber 29 and conduits 23, 22. Alternatively, the outlet of the engine-driven pump 41 may be connected directly to the front wheel brakes and through a spring-loaded non-return valve to the master cylinder which then operates only the rear wheel brakes, so that the increase in pressure in conduit 39 consequent upon closure of the valve 34, 35 operates the piston 27 and also closes the spring-loaded valve and causes an increase in pressure in the outlet of pump 41 to operate the front wheel brakes. The master cylinder, valve device and servo cylinder unit 25 may be constructed as described in Specification 545,667.
Patent GB-1384510-A (GB)
Title: Magnetic type game
IPC: A63F7/26
Filed: 1973-05-24
Abstract: 1384510 Magnetic games M I GLASS [trading as MARVIN GLASS & ASSOCIATES] 24 May 1973 [23 June 1972] 24953/73 Heading A6H Magnetic game apparatus comprises a boxlike structure 10 including a playing surface spaced by side walls 14 from a transparent cover 16; playing pieces 26a having top magnetic portions, 26b having bottom magnetic portions, and 38 having both top and bottom magnetic portions; and magnetic finger rings 32 to be worn by the players of the game. The playing surface simulates an ice-hockey rink with goals 20, a puck 25, shields 96 for "linesmen" constituted by two playing pieces 38, penalty boxes and an associated timing mechanism 68, 72, and score indicators 86. In use, one player uses finger rings 32 to manipulate the playing pieces 26a from above the cover 16 whilst the other player manipulates his pieces 26b from below, the structure 10 having suports 18 which space it from a table or the like.
Patent GB-952345-A (GB)
Title: Improvements in and relating to thermo-electric cooling devices
Inventor: DUNKEL GUNTER
IPC: H01L35/30
Filed: 1960-07-18
Abstract: 952,345. Thermo-electric devices. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. July 18, 1960, No. 24995/60. Heading H1K. [Also in Division F4] An ice-making device comprises a water container 8, a heat dissipating base situated below the container and two limbs 1, one end of each limb joining a projection 2 at the underside of the container 8 and the other end of each limb joining parts 3 projecting from the base-plate, the limbs 1 being electrically related to the material of the parts forming junctions with them so that cold junctions exist at the points between the projection 2 and the limbs 1 when electric current traverses the container, limbs and base. The water container 8 and thermoelectric assembly are housed in a casing 6 so that the device is portable and may be placed in contact with any suitable cooling surface of a refrigerator to ensure rapid ice-making. The space between the casing 6 and the thermoelectric assembly is filled with heat insulating material 5 such as cellular foamed synthetic resin. Heat transfer fins 7 extending between the casing 6 and the base of the device can be provided outside and inside the casing. Such heat transfer fins can also extend between the members 3 and the casing. Partitions are arranged in the water container to form cups 4 for the ice cubes. A lid 10 fitted to the top of the container 6 has openings for the insertion of sticks 11 into the cups.
Patent GB-889358-A (GB)
Title: Charging alloy for thermostats
IPC: C22C7/00
Filed: 1959-07-21
Abstract: A charging alloy for a high temperature thermostat consists of Hg, In and Tl, the Hg forming 5-40% of the alloy and the Tl 0-60% of the remainder.  The alloy constituents are melted in a vessel having a closed valve in its bottom and forming part of the arrangement for filling the thermostat, Fig. 2 (not shown).  On opening the valve the alloy passes out and leaves oxides and other impurities adhering to the walls of the vessel and/or the valve.
Patent GB-1427814-A (GB)
Title: Tongs for use in a multi-stage forging press
IPC: B25J15/00
Filed: 1973-05-25
Abstract: 1427814 Lifting tongs HATEBUR UNFORMASCHINEN AG 25 May 1973 [27 May 1972] 25048/73 Heading B8H Tongs for engaging a forging with a collar comprises a lower pair of arms 4 fixed to a carriage (not shown) and an upper pair of arms resiliently mounted to said carriage. Each arm has a jaw in the form of a bell crank 8 pivotally mounted at 27 within a slot 6 on one side of an arm. The crank has two abutment surfaces 14, 15 angled with respect to each other to respectively engage the base 6a of the slot in the operative and inoperative positions of the jaw and is urged into the inoperative position by a spring 12. One arm 16 of the crank has angled surfaces 17, 18, parallel respectively with surfaces 14, 15 and has a displacement between the inoperative and operative position equal to the depth of the collar b whereby in the operative position both the collar and the shank of the forging are gripped. The crank is moved between the inoperative and operative positions, against the spring bias, by the collar on the forging as said forging is ejected from a forge.
Patent GB-683956-A (GB)
Title: Improvements in the manufacture of paper
IPC: D21H21/16
Filed: 1949-09-29
Abstract: 683,956. Paper containing resin and loading material. KNAGGS, J. Sept. 26, 1950. [Sept. 29, 1949] No. 25059/49. Class 96. High quality printing paper, bank-note paper &c. of high wet strength and opacity is made by adding to the beater a solution of melamine resin e.g. in hydrochloric or acetic acid, and colloidal loading material e.g. titanium dioxide, china clay, or barytes so that a high proportion thereof is retained in the paper, aluminium sulphate or chloride being added to bring the pH value to 4 to 4.2 after beating. The additives may be mixed in a colloid mill prior to use, and the paper formed on a cylinder mould.
Patent GB-245416-A (GB)
Title: Improvements in water tube boilers
IPC: F22G7/14
Filed: 1925-10-08
Abstract: 245,416. Krupp Germaniawerft Akt.- Ges., F. Jan. 2, 1925, [Convention date]. Water-tube boilers.-In a water tube boiler having upper and lower drums A, B connected by a bank of tubes C the tubes of the outer longitudinal row of which are placed closely together to form a wall, a superheater D is inserted between transverse tube rows through gaps in the tube wall formed by bending some of the tubes c<2> of the wall for a part of their length behind adjacent tubes c<1>. The superheating tubes may pass upwardly into the tube bank, and the gaps in the tube wall mav extend to the bottom drum.
Patent GB-1379870-A (GB)
Title: Process for the production of quinoxaline
IPC: C07D241/42
Filed: 1973-07-25
Abstract: 1379870 Quinoxaline CHEMICZNA SPOLDZIELNIA PRACY SYNTEZA 25 May 1973 [26 May 1972 8 June 1972] 25233/73 Heading C2C  Quinoxaline is produced by reacting at least 11 % by weight of orthophenylenediamine with at least 6% by weight of glyoxal in an aqueous solution in the presence of a salt of an alkali metal and a weak acid. The preferred salt is sodium carbonate. The glyoxal may be used in the form of a solution obtained by the oxidation of acetaldehyde or paraldehyde with nitric acid and which contains up to 30% of other compounds, in particular organic acids.
Patent GB-536329-A (GB)
Title: Improvements relating to colour photography
IPC: G03C7/388
Filed: 1939-09-07
Abstract: 536,329. Colour photography. ELLIOTT & SONS, Ltd., and HOWE, D. J. T. Sept. 7, 1939, No. 25237. [Class 98 (ii)] The action of a colour former is modified by means of an alkyd synthetic resin, not chemical- Iv combined with the colour former but in intimate physical association with it. The resins known under the registered Trade Marks "Glytpal" and "Paralac" may be employed. In examples ; (1) an alkyd resin and p-nitrobenzylcyanide are dissolved in a mixture of acetone and methylated spirit and added to a silver bromide emulsion ; and (2) α-napthol is used as the colour former, the procedure being otherwise as in (3). The mixed solution in a non- aqueous solvent may also be added to an aqueous solution of a colloid, such as gelatine, for subsequent addition to the emulsion. The emulsions may be colour sensitized, and the material may be of the wet or dry stripping type. Specification 505,834 is referred to.
Patent GB-1040952-A (GB)
Title: Improvements in or relating to a method of manufacturing cylinder blocks for the production of motor driven refrigerator compressors
IPC: F25B31/02
Filed: 1963-06-25
Abstract: 1,040,952. Compressors. DANFOSS A/S. June 25, 1963 [July 10, 1962], No. 25258/63. Heading FIN. A method of producing piston type compressors, Fig. 1 (not shown), having similarly dimensioned cylinders 2 and pistons 1 but differing work capacities, comprises forming one or more apertures 10 in the walls of the cylinders communicating with intake silencers 8, the capacity of the compressors depending on the position of these apertures from the upper dead centre position To. The cylinder 2 is covered by a valve disc 3 having an intake valve 5 and a pressure valve, and the silencer chambers 8 are connected by channels 9 to an intake valve chamber 6 and by access bores 11 to the media being compressed. The apertures 10 may be in the form of bores or axially extending slots, and the total cross-sectional area is equal to or greater than the effective cross-sectional area of the inlet valve 5.
Patent GB-322489-A (GB)
Title: An improved process for the recovery of valuable products from varieties of coal, tars, mineral oils and the like
IPC: C10G1/06
Filed: 1928-09-03
Abstract: 322,489. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 3, 1928. Hydrogenation, destructive. - In pre-heating carbonaceous materials from 300‹ C. to the temperature required for destructive hydrogenation, the heat is supplied to the said materials in admixture with a part, at least, of the hydrogenating gas. Brown coal is mixed with a high-boiling coal hydrogenation product and is pumped at a into a heating coil I of Siemens-Martin steel. The sludge leaves at b at 320‹ C. About 30 per cent of the hydrogenating gas entering through a heat-exchanger R is drawn off at hand mixed with the coal-sludge at c. The mixture is heated in a coil II, of slightly alloyed steel, to 430‹ C. and enters the reaction chamber A at e. The remainder of the hydrogenating gas is pre-heated to 430‹ C. in a heat-exchanger V and enters the reaction chamber through a porous plate at f. The! reaction products leave at g and pass through the heat-exchanger R.
Patent GB-814661-A (GB)
Title: Improvements in or relating to systems of and apparatus for the storage of digital information
Inventor: KILBURN TOM
IPC: G11C11/06
Filed: 1954-08-31
Abstract: 814,661. Electric digital-data-storage apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 24, 1955 [Aug. 31, 1954], No. 25304/54. Class 106 (1). [Also in Group XXXIX] Alternating current is used for interrogating a storage element in a magnetic matrix memory which may form part of a digital computor. The binary digit recorded in the element is indicated by the phase of a harmonic of the alternating current on the read out circuit. A matrix comprises ferrite cores a, b . . . i linked with conductors in rows n, o, p and in columns q, r, 8 controlled respectively by selector switches RS, CS. Binary information is stored in a core b by feeding a pulse of appropriate polarity from source WI to conductors n and r through switches WBS1, RS and WBS2, CS. To interrogate core b, frequency f1 is fed from source S to conductor n and the output induced in conductor r is applied through a filter F tuned to the second harmonic 2f1 to a phasesensitive rectifier PSR in which the phases of the second harmonic from core b and from a reference core y are compared. The reference core y may be replaced by a pulse generator SPG, Fig. 3, which controls gate GA to sample the second harmonic 2f1 substantially at the peaks of the frequency f1. The polarity of the output at 19 indicates the digit recorded. In a high-speed digital computer the contact K2 controlling the alternating current source S and the switches RS, CS, WRS1, WBS2 would all be gate circuits. The magnetic cores may be replaced by ferro-electric devices. Specification 797,941 is referred to.
Patent GB-1002904-A (GB)
Title: Coating composition
Inventor: BARBA ANDREW MICHAEL
IPC: C09D131/04
Filed: 1961-08-10
Abstract: A coating composition comprises a vinyl acetate-crotonic acid copolymer, urea formalderesin and a pigment comprising ground glass and optionally silica gel and titanium dioxide. Specifications 1,002,905 and 1,002,906 are referred to.ALSO:Paper, cloth or film is coated with a composition comprising a vinyl acetate-crotonic acid copolymer, urea-formaldehyde resin and a pigment comprising ground glass.  The pigment may comprise ground glass, silica gel, and titanium dioxide.  The cloth may be a polyester filled glass or cotton cloth, and the film may be of cellulose triacetate, acetate-propionate or acetate-butyrate, nylon, polyethylene terephthalate, polystyrene, or polycarbonate. Specifications 1,002,905 and 1,002,906 are referred to.
Patent GB-410518-A (GB)
Title: Improvements in projection screens
IPC: G03B21/60
Filed: 1932-11-18
Abstract: 410,518. Projection screens. ZAFIROPULO, J., 51, Rue de Passy, Paris. Nov. 18, 1932, No. 25375/33. Divided on 410,515. [Class 97 (i).] A screen for the projection in relief of pictures obtained in the manner described in Specifications 410,515 and 410,517 is made of a number of lens elements having an aperture ratio of at least f /4 and preferably f /2.5. The screen can be used with an objective A, Fig. 1, the effective aperture of which is increased by means of reflectors S, Z, so as to bear the above ratio to its distance from the screen Q, i.e. a /b = 2.5. The foci of the lens elements of the screen Q are in the rear surface of the screen. To avoid the necessity for increasing the diameter of the objective A, a filter consisting of three colour bands i, k, l, Fig. 3, may be placed in front of the objective and corresponding colour strips J<1>, K<1>, L<1> applied to the rear surface of each element of the screen. This surface is turned towards the projector and the pictures are seen by transmitted light. The screen shown in Fig. 4 has convex front elements g, and concave rear elements h, the curvatures being so related, having regard to the thickness of the screen, that parallel rays incident on the front refracting surface are, after refraction thereat incident normally on the rear surface to which a layer c of silver &c. is applied. This screen may be homogeneous as shown, or it may consist of two layers of acetyl cellulose &c. in which the lens elements are formed and an intermediate layer of glass to which the lenticular layers are cemented.
Patent GB-487926-A (GB)
Title: Improvements relating to automatic ring valves for compressors and the like
IPC: F16K15/10
Filed: 1937-09-20
Abstract: 487,926. Valves. HOERBIGER, J. R., and HOERBIGER, A. Sept. 20, 1937, No. 25513. Convention date, Sept. 24, 1936. [Class 135] An automatic ring valve for compressors or the like comprises a valve plate c controlling ports b, and guided by flexible arms g of a fixed plate i. A loose connection is provided between the guide arms and the valve plate in the form of pins n acted upon by springs p so that the ends of the guide arms are free to assume an inclined position with respect to the valve plate whilst positively guiding it. As shown on the right-hand side of the Figure, further springs u may be provided acting in opposition to the springs p, whilst the valve plate c is also provided with arms r formed out of the plate itself.
Patent GB-202190-A (GB)
Title: Improvements relating to mattresses
IPC: A47C23/30
Filed: 1922-09-21
Abstract: 202,190. Hoskins & Sewell, Ltd., and Benwell, W. H. Sept. 21, 1922. Mattresses. - An anti-sagging device for a woven wire mattress comprises a number of thin flexible metal bands b, obliquely or diagonally arranged beneath the mattress a, and attached by springs d to the cross-bars c only of the mattress frame, the bands being free to move relatively at their overlapping parts. In addition to the springs d a short length of chain e may also be provided. According to the Provisional Specification, the bands b may be disposed longitudinally and parallel with each other.
Patent GB-797549-A (GB)
Title: Improvements in or relating to cutting machines for mines
IPC: E21C27/24
Filed: 1955-09-08
Abstract: 797,549. Mineral - mining machines. GEB. EICKHOFF, MASCHINENFABRIK UND EISENGIESSEREI. Sept. 8, 1955 [Sept. 11, 1954], No. 25713/55. Class 68(1) The cutter means of a mineral-mining machine are mounted ahead of the machine on a support 4, 17 secured to and projecting forward from a structure 3 which houses a power unit for driving the cutter means and which is so pivotally mounted on a carriage 1 about an axis 2 extending transversely of the direction of advance of the machine that the structure may be swung by means, e.g. jacks 8, 9, acting between the structure and the carriage to cause the cutter means to excavate a space into which the machine may be advanced. A shaft driven from the power unit and disposed within the boom 4 drives through bevel gearing a shaft projecting from the boom and carrying sprockets 5, 6. The sprockets 5, 6 drive cutter chains that circulate about sprockets secured to an axle of a drum cutter 7, the axle being rotatably mounted in the spaced arms of the extension 7 secured to the boom 4. An extension cutter or cutters may be detachably secured to one or both ends of the axle.
Patent GB-690445-A (GB)
Title: Improvements in transmission couplings
IPC: F16D37/00
Filed: 1950-10-23
Abstract: 690,445. Friction clutches. DAVIES, H. V., and LEWIS, E. C. Dec. 18, 1950 [Oct. 23, 1950], No. 25721/50. Addition to 677,019. Class 80 (ii). To improve grip in a powder clutch wherein a hollow driven (or driving) rotor 10 is arranged inside a driving (or driven) casing 1, containing a drive-transmitting powdered iron-graphite mixture, the outer casing 1 has an apertured or recessed, continuous or segmental ring 15 projecting inwardly into a continuous peripheral aperture formed by the spaced outer edges 9 of the inner rotor 10.
Patent GB-689732-A (GB)
Title: Improvements in or relating to the closure of containers
Inventor: ETT ARTHUR STEPHEN DENNIS BARR
IPC: B65D81/32
Filed: 1948-10-04
Abstract: 689,732. Glass-metal seals. EDWARDS & CO. (LONDON), Ltd., W., and GREAVES, R. I. N. Oct. 4, 1949 [Oct. 4, 1948], No. 25747/48. Addition to 656,392, [Group VI]. Drawings to Specification. Class 36. [Also in Groups VI and XVII] A vitreous or ceramic container is provided with a metallized upper end and a metal cover is soldered thereto (see Group XVII). The metallizing may be carried out, for example, by platinizing and subsequent tinning, or by effecting the deposition in vacuo by vaporization or cathodic sputtering of a suitable metal such as tin or silver.
Patent GB-1102017-A (GB)
Title: Method and circuit arrangement to check faults in connecting lines
IPC: H04M3/28
Filed: 1965-06-18
Abstract: 1,102,017. Checking faults in multi-wire lines. INTERNATIONAL STANDARD ELECTRIC CORPORATION. June 18, 1965 [June 20, 1964], No. 25868/65. Heading G1U. [Also in Division H4] In a method of checking multi-wire connecting lines, such as used in an automatic telephone exchange, for earth faults, short circuits between wires of the line, or excessively low leakage resistances from wire to earth or between wires, the n different phases derived from a multi-phase alternating current generator G are applied to the n wires of a line 1 to be checked when the line is not in use, each phase being applied to a different wire, and the currents which flow in the wires and also in the neutral phase of the multi-phase A. C. are individually monitored. An indication of the nature of any fault which may be present is provided in accordance with the monitored currents. End to end conductance may also be checked. The phases from the generator G are connected to the telephone line 1 via the capacitors C and switches Vbl, the other ends of the line being connectable via the switches Vb2 and matching resistors R 1 -R n  to earth. The currents in the various phases are monitored via the transformers U 1 -U n , while the current in the neutral phase M p  is monitored by the transformer U o . The transformers are connected via amplifiers to an evaluating circuit A. To test for short circuits and leak currents either between a wire and ground or between wires, the switch Vb2 is left open. If current is detected in any one wire and in the neutral phase, a short circuit to ground is indicated, if it is detected in two wires, a shunt between these wires is indicated. To check the line for adequate conductance, the resistors H 1 -R n  are switched into circuit via Vb2. If all wires are of proper condition, the generator feeds a symmetrical load and no neutral or zero current flows. If one wire is interrupted, no output is derived from its transformer and a fault is indicated. Faults which occur symmetrically on all wires may be detected by providing the generator with excess phases which are loaded correctly.  Arrangements for testing three wire lines using fewer amplifiers than in the arrangement of Fig. 1 but involving more complicated transformers are discussed, Figs.2 and 3 (not shown).