baber/WOPTO huggingface dataset:
Patent GB-372039-A (GB)
Title: Method and apparatus for producing a composite reinforced sheet
IPC: D21F11/00
Filed: 1931-03-19
Abstract: 372,039. Compound sheet materials. ARNOLD, C., 11, Southampton Buildings, London.-(Dow Chemical Co. ; Midland, Michigan, U.S.A.) March 19, 1931, No. 8497. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 20, 1931.] [Classes 96 and 140.] In a method of and apparatus for applying reinforcing strands or yarns laid diagonally in two layers to sheet material such as paper, the strands are fed to the sheet material by guide eyelets mounted on a carriage having a reciprocatory movement transverse to the sheet as the latter is moved relatively to the path of the carriage. Preferably the sheet material is first coated with an adhesive, and the strands are pressed on to the sheet by rollers, after which a second sheet, which may also be coated with adhesive, may be applied over the strands. In the apparatus described the paper is drawn from a roll 2, Fig. 1, and passes between steam heated rolls 3, 4, the roll- 4 running in contact with a roll 5 which picks up adhesive from a heated tank 6. The paper then passes into a cooling chamber 7 supplied with cool air by a fan 8. The adhesive, for instance pitch, is thus cooled so as to be non-sticky. The sheet then passes under a roller 10, Fig. 3, and between a series of parallel rollers 11, 12 where the threads are applied. A second pitch coated sheet 13 is then applied. In the thread applying mechanism, yarn is supplied from spools 15, Fig. 1, passed through a comb 16 and over a roller 17, preferably driven at a speed in excess of the speed of the yarn, and then through guide eyelets 18, 19 mounted on a carriage 21, from which each separate strand passes under one of the rollers 12. The carriage 21 is mounted on guides 22, and is reciprocated across the machine by suitable mechanism at a rate so related to the speed of travel of the sheet that the threads are laid at an angle of 45‹ or other predetermined angle. The upper sheet .13 is drawn from a roll 29 and passes over a roll 30 where pitch is applied from a roll 31 running in contact with a roll 32 which takes up the pitch from a heated bath 33. The sheet 13 is then pressed on to the lower sheet by means of the roller 14, Fig. 3, and the compound sheet passes over a heater 40 where the cold pitch on the lower sheet is softened. The double sheet then passes between rollers 27, 28. The usual form in which the threads are laid is shown in Fig. 4, but the arrangement shown in Fig. 5 may be produced by adding an additional series of guide eyelets, the thread from each of the added series passing under the same roller 12 as that from the corresponding eyelet of the first series. Reinforced material of this form may be used-to form tubes, the less closely reinforced edges being overlapped and seamed. To facilitate the pressing of the composite material by the rolls 27, 28, the resiliency of the lower sheet is reduced by moistening it by applying moisture to the roll 28, Fig. 3, by a roll 35. In a modification, adhesive may be applied to one sheet only.
Patent GB-1217861-A (GB)
Title: Improvements in or relating to synthetic zeolitic compounds
Inventor: WHITTAM THOMAS VINCENT
IPC: B01J29/06
Filed: 1967-02-22
Abstract: 1,217,861. Synthetic zeolite complexes. PETER SPENCE & SONS Ltd. 14 Feb., 1968 [22 Feb., 1967], No. 8415/67. Addition to 1,171,464. Heading C1A. A crystalline synthetic zeolite, e.g. Zeolites A, B, L, X, Y, T, gmelinite, erionite, offretrite or faujasite comprising irreversibly fixed within the anionic framework an element of Groups IB, IIA (other than Mg), IIB, IIIA, IIIB (other than B or Al), VIII (other than Ru) rare earths, Th, V, Pb and Mn and " excess silica," i.e. the amount by which the total SiO 2  content in said zeolite exceeds the amount of SiO 2 , which would have been present if none of the above elements had been incorporated. A process for the preparation of said zeolites comprises the preparation of a reaction mixture of a siliceous material, an aluminium component, a Na and/or K component and a salt of one of the elements listed above in an aqueous medium. The siliceous component has an activity of 30 units as defined in Specifications 1,171,462 and 1,193,234. The reaction mixture is heated in the range 50-150‹ C. until a crystalline product is formed. The alkali metal may be replaced by ion exchange with a metal salt. The product may be used as a catalyst in cracking, reforming, hydro-cracking hydrodesulphurization, alkylation, dealkylation, disproportionation, isomerization, polymerization or oxidation processes.
Patent GB-139334-A (GB)
Title: Improvements relating to turnbuckles and the like
IPC: B21K1/64
Filed: 1919-04-03
Abstract: 139,334. Myatt, W. J., and Myatt & Co., W. J. April 3, 1919. Nuts.-A tubular body, such as a turnbuckle nut blank, has one or both ends thickened by reducing the diameter, by axial rolling in a machine in which preferably two sets of rollers c, carried by oppositely-revolving spindles k mounted in sliding headstocks j, operate simultaneously on the two ends of a tubular blank held by a central clamp.
Patent GB-792903-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/75
Filed: 1954-03-23
Abstract: 792,903. Luminescent materials. GENERAL ELECTRIC CO., Ltd., HUNT, B. E., and McKEAG, A. H. June 23, 1955 [March 23, 1954], No. 8491/54. Class 39(1). A phosphor excited to luminescence by U.V. radiation 2537Š comprises the complex pyrophosphate of calcium with either cadmium or magnesium and activated by antimony. Manganese may be an additional activator and P 2 O 5  may be 10 per cent in excess of the stoichiometric formula. The ratios CaO : CdO and CaO : MgO are in the range 1À75 : 0À25 to 0À25: 1À75. In one example, calcium hydrogen phosphate, cadmium carbonate diammonium hydrogen phosphate, antimony trioxide and sodium carbonate are mixed to a thin paste with water, dried, and heated in air at 900‹C. for one hour. The metal contents are varied in other examples given in the specification. Specifications 733,145 and 754,779 are referred to.
Patent GB-1433087-A (GB)
Title: Change speed gearing
IPC: F16H3/66
Filed: 1974-02-25
Abstract: 1433087 Variable-speed gear AISIN SEIKI KK 25 Feb 1974 [26 Feb 1973 22 March 1973] 8512/74 Heading F2D A transmission comprises an arrangement of at least three planetary trains controlled by two clutches and at least three brakes to provide four or more forward ratios and two or more reverse ratios. A first train has a sun wheel 41 on a shaft 122 which may be coupled by a clutch 21 with the input shaft 121, intermeshing planets 42, 43 on a carrier 45 which may be held by a brake 31 or coupled to the input shaft by a clutch 22, and a ring gear 44 which may be held by a brake 32. The carrier 45 is connected by a hollow shaft 123 with the sun 51 of a second train which has a ring gear 53 connected with the shaft 122 and planets 52 on a carrier 54 which is connected with a carrier 64 for planets 62 of a third train and with the output shaft 12. The sun 61 of the thrid train has a driving connection with the shaft 122, and the ring gear 63 has a brake 33. With the clutch 21 engaged, first, second and third forward ratios are established by respective application of the brakes 33, 32, 31, and fourth or direct drive is obtained with both clutches 21, 22 engaged. Two reverse ratios are established by engagement of the clutch 22 together with application of either of the brakes 33, 32. As shown, the input shaft 121 is driven by a three-element torque converter 110. Modifications are described in which a further planetary train is added between the third train and the output shaft to provide five or six forward and three or two reverse ratios.
Patent GB-146591-A (GB)
Title: Improvements in or relating to driving mechanism for the selectorarm of automatic selector-switches
IPC: H01H67/06
Filed: 1919-04-05
Abstract: 146,591. Murray, R. L. April 5, 1919. Intercommunication systems and apparatus.- In an automatic selector of the type in which the selector arm is moved to find the calling line when the hand-set at the called station is removed from its cradle, the driving spring H is a C-spring and operates the selector arm through a sliding rack G, which is in butting engagement both with the C-spring and with a member E<2> forming part of the cradle E, E' supporting the hand-set. The selector arm is fixed to the pinion F<1>, which engages the rack G and carries a ratchet-wheel F<2> connected by a pawl F<4> and free-wheel F<3> to an escapement F<7>, so that when the hand-set is placed on the cradle, the rack moves quickly to load the spring, whereas when the hand-set is removed the spring moves the selector arm uniformly over its contacts under control of the escapements.
Patent GB-541184-A (GB)
Title: Means for collecting and utilising unvaporised fuel in internal-combustion engines
IPC: F02M1/00
Filed: 1940-05-14
Abstract: 541,184. Utilizing unvaporized fuel. CANTRILL, H., and READ, J. R. May 14, 1940, No. 8667. [Classes 7 (ii) and 7 (iii)] In means for collecting and utilizing unvaporized fuel, particularly for use with a downdraught carburetter a and super-charger c, an elbow pipe d between these two parts is formed with a well e which is provided with a drain pipe h leading to the atmosphere, a further pipe i, from the induction manifold g entering the drain pipe by a nozzle j. When the engine is stationary, fuel collecting in the well is drained away by the pipe h. During slowrunning conditions, the vacuum in the elbow d draws in air through the drain pipe to vaporize the collected fuel. During high-speed flight at large throttle openings, the pressure in the manifold g is delivered by the pipe i to vaporize collected fuel. At part throttle openings the pressure in the elbow d is again below atmospheric, and air is drawn in through the drain pipe. A diffuser tube may be arranged above the nozzle j. Specification 347,785 is referred to.
Patent GB-1038458-A (GB)
Title: Improvements in or relating to hay making machines
IPC: A01D78/10
Filed: 1963-03-26
Abstract: 1,038,458. Haymaking machines. C. VAN DER LELY N.V. March 26, 1963 [April 4, 1962], No. 8746/66. Divided out of 1,038,457. Heading A1F. The subject matter of this Specification is substantially the same as that described in Specification 1,038,457 but the claims differ.
Patent GB-608743-A (GB)
Title: Improvements relating to contact arrangements for continuous carbon electrodes
IPC: H05B7/107
Filed: 1946-03-21
Abstract: 608,743. Mounting electrodes. NORSKE AKTIESELSKAB FOR ELEKTROKEMISK INDUSTRI. March 21, 1946, No. 8803. Convention date, April 22, 1944. [Class 39(iii)] [Also in Group XXXVI] A contact arrangement for continuous electrodes comprises contact members 2 pressed against the electrode 1 by means of insulated clamps 6 whose inclined surfaces engage a similarly inclined surface on an axially movable water-cooled pressure ring 7 that forms the end of a water-cooled casing 13 surrounding the contact arrangement. The pressure ring 7 is suspended by rods 8, each rod being carried by a piston 9 that rests on a spring 10 enclosed by a water-cooled housing 11. The pressure exerted by the contact member 6 is controlled by admitting compressed air to the pistons 9, the contact members bearing the major part of the weight of the electrode whilst the remainder is taken by a secondary suspension system. Dust is prevented from entering the water-cooled casing 13 by maintaining the interior of this casing at a slight pressure or by introducing cleaned furnace gas through a pipe 16. Current is supplied to the contact members by means of water-cooled copper pipes 5. U.S.A. Specification 1,972,849 is referred to.
Patent GB-906020-A (GB)
Title: Improved anion-exchange process for uranium recovery
Inventor: EVEREST DAVID ANTHONY
IPC: B01J41/04
Filed: 1958-03-19
Abstract: In the recovery of uranium from aqueous solutions, there is employed an anion exchange medium consisting of an inert polymeric material to whose surface are bonded particles of anionexchange resin which are between 0,3 and 2,0 mm. diameter.  The inert polymeric material may be thermoplastic, for example polyethylene, polyisobutylene, vulcanized natural or synthetic rubber, especially polystyrene and a copolymer of styrene and butadiene, and a copolymer of butadiene and acrylonitrile, vinyl chloride polymers and copolymers, for example polyvinyl chloride and the copolymers of vinyl chloride with the vinyl esters of lower aliphatic acids, for example vinyl acetate. The anion exchange medium may be formed by heating a mixture of the anion exchange particles with the polymeric material, dispersing the particles, and forming into for example a sheet.  In an example, an anion exchange resin, prepared by treating particles of chloromethylated polystyrene cross-linked with divinylbenzene with trimethylamine, was formed into a sheet with polyethylene, treated with sulphuric acid, and used to absorb uranium from a uranyl sulphate solution.  The process may be applied to recovery of uranium from aqueous pulps, wherein the anion exchange medium is immersed in the pulp so as to extend upwardly therein, and the solid particles present in the pulp are kept suspended by gas forced upwardly through the pulp.
Patent GB-177702-A (GB)
Title: Improvements in or relating to flying machines
IPC: B64C27/04
Filed: 1921-03-23
Abstract: 177,702. Peglar, R. A. March 23, 1921. Screw and like propellers.-A helicopter screw comprises a shaft having one blade fixed at an angle thereto and another blade normally set at a reverse angle but adapted to be adjusted until it is parallel to the fixed blade so as to act as a supporting-plane. Fig. 1 shows blades all, a<3> fixed, and plates a', a<4> pivoted to members g, g' on shafts f, f<1>, the pivoted blades being connected by links i, i' to sliding sleeves h, h<1> keyed to the shafts f, f<1> and connected by collars j, j' to vertically adjustable members k. The members k have vertical portions k<1> formed with screwthreads to engage nuts which are mounted on the machine frame and are provided with bevelwheels geared to bevel-wheels on a transverse shaft m<3> operated by the pilot. The lower ends of the shafts f, f<1> have blades similarly connected to the members k<1>.
Patent GB-445444-A (GB)
Title: Improvements in locks
IPC: E05B21/00
Filed: 1935-03-22
Abstract: 445,444. Lever locks. CHUBB & SON'S LOCK & SAFE CO., Ltd., 128, Queen Victoria Street, London, and START, P. W., Shirley, Stafford Road, Oxley, Wolverhampton. March 22, 1935, No. 9024. [Class 44] A lever look has one or more of the pivoted levers so formed that they present an abutment in the path of a key which has not effected the normal throw of the bolt and prevents withdrawal of the key to give warning that the lock is insecure. One or more of the levers has a tail piece e, Fig. 4, or an abutment m, Fig. 6, which obstructs the complete rotation of the key whenever the stump i on the bolt moves insufficiently far to allow the levers to move into their normal locking position.
Patent GB-595674-A (GB)
Title: Storage amplifier and magnetic detector circuit arrangements
IPC: G01V3/10
Filed: 1944-05-11
Abstract: 595,674. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. May 11, 1944, No. 9032. Convention date, May 11, 1943. [Class 40 (v)] [Also in Group XXXVI] " Ferromagnetic bodies, e.g. submarines, sea or land mines, or magnetic deposits, are detected or located by their reaction on slowly alternating magnetic fields produced by inductive loops, the "reaction " voltage being amplified in a thermionic storage amplifier as described in Specification 595,673 to actuate a suitable indicator. The amplifier consists of a series of directly coupled triodes 29, 39 connected in cascade, successive triodes being connected in opposite senses across the A.C. source 15. The operating point of the first tube 29 is set by means of potentiometer 31 which serves to bias all stages of the amplifier. During the half cycle that valve 29 conducts a condenser 35 in the storage circuit 33 charges, this charge determining the bias on the next valve 39 during the succeeding half-cycle, and so on through all stages of the amplifier to the final stage where a meter 47 is included in the anode circuit. The presence of a body 10, by varying the grid voltage of tube 29 will therefore be indicated by a variation in the meter reading and the proximity of the body 10 by the magnitude of the variation.
Patent GB-490776-A (GB)
Title: Improvements relating to grinding or abrading machines
IPC: B24B53/08
Filed: 1937-03-31
Abstract: 490,776. Trueing grinding wheels. CHURCHILL MACHINE TOOL CO., Ltd., and ASHBRIDGE, H. H. March 31, 1937, No. 9127. [Class 60] In a machine for grinding curved &c. surfaces, for example, the ball track in a bearing race c, the contoured grinding-wheel d is trued by a diamond tool k moved under control of a template o. The tool k is carried by a plunger m slidable in a slide and retracted by a spring n, the slide being adjustable, transversely of the machine on a slide g, which also is movable transversely, on a slide f, in one direction by a hydraulic plunger h and in the reverse direction by a spring i ; the slide f is adjustably secured to the work-table a which slides on the machine bed to carry the work-piece e up to the grinding- wheel d. On the slide is mounted, for movement parallel to that of the table a, a slide p, urged in one direction by a spring q and carrying the template o, which is engaged by the rear end m<1> of the plunger m. In operation, as the table a approaches the wheel trueing position, the slide g is moved forward by the plunger h to engage a micrometer stop u on the slide f, and the slide p engages a stop s on the grinding-head t. The continued movement of the table a then moves the part m<1> over the template, thus causing in-and-out movement of the diamond to shape the wheel d, until, when trueing is completed, the slide f is moved rearwards, thus also disengaging the slide p from the stop s. Specification 424,261 is referred to.
Patent GB-399535-A (GB)
Title: Improvements in thermionic valves
IPC: H01J19/30
Filed: 1932-03-30
Abstract: 399,535. Thermionic valves. M-O VALVE CO., Ltd., Marconi House, Strand, RANKIN, D. A., Osram Works, Hammersmith, both in London, and SMITHELLS, C. J., c/o General Electric Co., Wembley, Middlesex. March 30,1932, No..9193. [Class 39 (i).] Those parts of interior electrodes, other than cathodes, which, if they were made of nickel, could not be adequately heated by eddy currents from a coil outside the bulb without overheating other parts, are made of iron or mild steel and thus, due to their high permeability, are adequately heated to free them from gas during the eddy-current heating of the electrodes. In a screen-grid valve, flat plates outside and parallel to the cylindrical screen and forming the anode are made of iron. In a grid comprising fine wire wound on two parallel thick rods, these rods are of iron.
Patent GB-1083372-A (GB)
Title: Valve mechanism
Inventor: CORR LEONARD EDWARD BENJAMIN
IPC: F23D14/46
Filed: 1963-02-28
Abstract: 1,083,372. Valves. BRITISH OXYGEN CO. Ltd. March 4, 1964 [Feb. 28, 1963], No. 9209/64. Divided out of 1,083,371. Heading F2V.  A valve suitable for controlling the flow of cutting oxygen in a flame-cutting torch comprises a closure member 10 biased by spring 9 towards a seat 4 to close an orifice 5. A cylindrical extension 16 having a metering slot 17 extends from the closure into the orifice and abuts an extension 14 of a plunger 13 carried by operating rod 12. An 0-ring 11 is received in a groove on the end face of the closure member. During initial opening movement, gas flows from inlet 6 to outlet 7 through the annular gap between the extension 16 and the orifice. Further movement allows supplementary flow via the slot 17.
Patent GB-358014-A (GB)
Title: Apparatus for semi-automatic change of speed or reversal on motor cars
Filed: 1930-03-24
Abstract: 358,014. Controlling variable-speed gearing. LUC, (nee DEBARLE), Y. H., 13, Rue de Sully, Charenton, Seine, France. March 24, 1930, No. 9329. Convention date, March 27, 1929. Void [Published under Sect. 91 of the Acts]. [Class 80 (ii).] Gear changing is effected through levers 43, 44, 45 by the power of the engine according to the setting of a selector 69 when the depressed main clutch pedal is released. The actual shifting is effected by the spring 7 of a trip relay lever 6, which is loaded by a disc 4 constantly driven from the engine through a shaft 1. The trip lever 6 when loaded is held by a pawl 15, and the loading is effected by a pawl 9 carried by lever 6 being momentarily lowered into engagement with a notch in disc 4. Depression of the clutch pedal, through a linkage 22, 21, 23, 24, 25, 30, 13, 12, allows the pawl 9 to engage, so setting lever 6 with spring 7 stretched. The lever 6, when released, through a spring arm 17 and shaft 20 imparts a swing to a disc 34, and through reversing-gear 36, an opposite swing to a disc 35. These discs 34, 35 are ratchet discs adapted to be engaged singly by one of a number of selector pawls 46 .. 50. These pawls are carried on frames 37, 38, 39 connected to the striker levers 43, 44, 45 respectively. After the trip relay has been loaded, the selector 69 is turned over a dial, and this through gearing 67, 64, 65, 66 operates a group of cams 56 .. 59 &c. in unison, which has the effect of lowering one of the selector pawls 46 &c. so as to be engaged by disc 34 or disc 35 on release of the relay. The release of the trip relay 6 is effected by lifting pawl 15, and this is done by the act of releasing the pedal to let in the engine clutch.
Patent GB-1374358-A (GB)
Title: Method of purifying and fractioning particle suspensions and  an apparatus for carrying out the method
IPC: D21D5/02
Filed: 1972-02-29
Abstract: 1374358 Pulp screening machine; centrifugal separators SEE AHLFORS 29 Feb 1972 [1 March 1971] 9375/72 Headings B1D and B2P Wood pulp is screened by passing inwards through an outer, rotating coarsely perforated drum 2 and an inner, finely perforated drum 1 which may rotate (Fig. 1) or be fixed (Fig: 2, not shown), drum 2 having external and possibly internal formations 43 which agitate the pulp to break up fibre agglomerations and clean the drums. In Fig. I pulp enters the machine tangentially at A and is filtered through a very coarse screen 39 (aperture 20-25 mm dia.) before reaching the outer drum 2, whose rotation induces centrifugal separation of heavy particles. Blades 35 rotating with drum 2 constitute a mixer and centrifugal pump to force the pulp inwards through the drums. Fractions rejected by screen 39, drum 2 and drum 1 are respectively discharged through outlets C, G and L, and accepts is discharged at M. Vanes 38, inside rotating drum 1, are fixed to create pulsations in the pulp which clean the drum. In Fig. 2 wherein drum 1 is fixed vanes 38 (not shown) would rotate. At least one of vanes 38 could deliver flushing water to the surface of drum 1. Additional inlets F and H enable diluting water to be delivered to the space outside drum 2 and the space between the drums. The drums are rotated by separate electric motors and in opposite directions in Fig. 1. Surface formations 43 on the drums may be uniformly distributed or arranged in axial or circuferentially spaced zones. Drum 2 may have perforations of 4 to 8 mm. dia. and drum 1 may have perforations of 1 to 2.5 mm. dia. or slots 0.20 to 0.60mm. wide. The illustrated machines have vertical axes but they could be horizontal.