baber/WOPTO huggingface dataset:
Patent GB-493440-A (GB)
Title: Improvements in or relating to hydraulic valves
IPC: F16K11/07
Filed: 1937-03-04
Abstract: 493,440. Piston valves ; aircraft landing-wheel brakes. INDIA RUBBER, GUTTA PERCHA, & TELEGRAPH WORKS CO., Ltd., TARRIS. F. J., and WEBB, D. March 4, 1937, Nos. 6500/37; and 4782/38, (divided application). [Class 135] Also in Groups XXXIII and XXXIV] A hydraulically - operated brake mechanism comprising a closed hydraulic circuit through which liquid is circulated under pressure and particularly adapted for controlling the operation of wheel brakes in aircraft is provided with control valves comprising cylindrical valve members with chamfers at one or both ends adapted to co-operate with control edges in the casing. Fig. 2 shows a single way valve having an outlet above the valve and an inlet connection 13 coaxial with the valve member 38 which has a sealling surface 42 adapted to seat on a flange 41. The control edge adapted to co-operate with the chamfer 45 is formed by making the lower part of the bore of a slightly larger diameter than the part in which the valve slides. A port 30 leads to another outlet passage controlled by a push button valve 33. The valve casing is secured to one side of a socket 11 used for securing a circular hand grip 10 to a control rod 12. The valve is actuated by a bell-crank lever 20 pivotally mounted on a lug on the hand grip so that the shorter arm extends into a housing 25 into engagement with a spring loaded button on the end of the valve spindle. In a modification the inlet is arranged radially instead of axially. In the form shown in Fig. 6, fluid entering at 51 which may be controlled by a valve as shown in Fig. 2 is divided into two streams under the control of a valve 56 having chambers 57, 58 at opposite ends adapted to co-operate with control edges formed by annular recesses 59, 60 connected to outlet ports 64, 65. Specification 488,489 which describes further details of the hydraulic system, is referred to.
Patent GB-1095171-A (GB)
Title: Measurement of liquids
Inventor: BARKER ALFRED WALTER
IPC: G01F23/68
Filed: 1964-02-18
Abstract: 1,095,171. Liquid level indicators. SANDALL PRECISION CO. Ltd. Jan. 29, 1965 [Feb. 18, 1964], No.6820/64. Heading G1H. A liquid level indicator 3 for a bulk liquid tank comprises an open-ended tubular member 4 which is inserted through an aperture in the wall of the tank and extends at its outwardly flanged lower end below the surface of the liquid in the tank. An indicator tube 11 extends through the tubular member 4 and is flanged outwardly at 12 to be connected to a bellows 13 closed by a disc 14 floating on the surface of the liquid. The skirt 16 of the tubular member 4 is provided with apertures 17 to equalize the pressure on both sides of the bellows 13. A ball 30, floating on the indicator liquid 15 contained in the bellows 13 and tube 11, abuts a spring-loaded plunger 33 which actuates a switch, on movement of the liquid level, to move a further plunger 34 along a scale 24. A temperature calibration gauge is provided at 23. The tank is also equipped with a capacity adjusting means which comprises a plug which is screwed into a bush let into the side of the tank, to bring the level of the indicator liquid 15 to a calibrated index when a measured quantity of liquid from a master meter has been fed into the tank.
Patent GB-617773-A (GB)
Title: Improvements in or relating to methods of magnetically recording fluctuating electrical energy, and magnetic recorders for recording electrical energy vibrations
IPC: G11B5/03
Filed: 1944-04-13
Abstract: 617,773. Magnetic recording. ARMOUR RESEARCH FOUNDATION. April 13, 1944, No. 6847. Convention date, Dec. 22, 1941. [Class 40 (ii)] Electrical variations are recorded magnetically by subjecting a paramagnetic body such as a steel wire to highfrequency variations of constant amplitude, the average value of the field force being deter-. mined by the variations to be recorded. Fig. 2 shows the waveform of the electric currents by which the recording is effected. The residual magnetization obtained is found to be independent of the highfrequency current, the characteristic being of the form shown in Fig. 9, where H is the average value of the field in Oersteds and BR is the residual induction in Kilogauss. It will be observed that the characteristic includes a long straight portion passing through zero. Fig. 1 shows a suitable circuit arrangement. The recording head 10 is of the kind described in Specification 585,468, wherein the wire passes through polepieces to a recording gap 17 and is magnetized in a longitudinal field in the gap. The high-frequency currents, which may have a frequency of 16 kc., are fed to the recorder operating coils 18, 19 and 20 from a source 27 through a blocking condenser 31 and the low-frequency variations to be recorded, corresponding, for example, to sounds, are fed from a source 30 through a choke 32, source 30 being connected in parallel with source 27. Source 27 may also be employed to feed a wipe-out coil 33 for demagnetizing wire 35 before recording, but it is only necessary to use the wipe-out coil when the intensity of the high-frequency current is low. The records produced are said to be very stable and not to be subject to deterioration due to ageing or rough handling.
Patent GB-865677-A (GB)
Title: Purification of phenol
Inventor: KEEBLE JOHN ALFRED
IPC: C07C37/86
Filed: 1958-03-04
Abstract: A process for the purification of phenol derived from cumene and containing colour forming impurities including aliphatic a -hydroxy carbonyl compounds comprises subjecting the impure phenol at an elevated temperature to conditions which will cause the substantially complete condensation of the aliphatic a -hydroxy carbonyl compounds with phenol to form benzofurans and separating the phenol substantially completely from the benzofurans.  The condensation of the a -hydroxy carbonyl condensation of the a -hydroxy carbonyl compounds with phenol may be carried out by heating the phenol in liquid or vapour phase at atmospheric, reduced or elevated pressures and optionally in the presence condensation catalysts such as activated alumina, aluminium silicate e.g. acid-or alkali-treated pumice or porcelain, acidic or basic ion exchange resins, mineral acids e.g. sulphuric and phosphoric acid, especially in the presence of iron, strong organic acids, e.g. p-toluene sulphonic acid and surface active earths e.g. montmorillonites such as fuller's earth, bentonite and attapulgite which may be acid-activated or alkali or heattreated.  In the liquid phase treatment activated charcoal or metal halides of the Friedel-Crafts type and sulphates of the same metals e.g. aluminium ferric, nickel and zinc chlorides, aluminium, ferric and nickel sulphates or boron trifluoride maye be employed as catalyst.  The vapour phase treatment may be carried out by passing the vaporised phenol through a tube which may be packed with catalyst.  The liquid phase treatment may be carried out batchwise or continuously.  The separation of the phenol from the benzofurans and other impurities is carried out by neutralisation of the phenol with an alkali followed by extraction of the benzofurans with a solvent or by steam distillation or by extractive distillation in the presence of a suitable solvent and preferably by extractive distillation in the presence of water, benzofurans being removed overhead.  The aqueous phenol may be subjected to dehydration and fractional distillation.  The tendency for the phenol to form coloured products on sulphonation and chlorination is shown to be substantially reduced after purification.  Examples are furnished in which crude phenol obtained from cumene by oxidatation and an acid-cleavage of the hydroperoxides formed, is purified.
Patent GB-648547-A (GB)
Title: Improvements in or relating to resilient pivotal bearings or joints
IPC: F16F1/38
Filed: 1948-03-05
Abstract: 648,547. Resilient mountings. HARRIS PRODUCTS CO. March 5, 1948, No. 6907. Convention date, April 25, 1947. [Class 108(iii)] In a resilient pivotal bearing or joint of the kind comprising an outer member or socket, an inner member such as a sleeve or pin disposed concentrically therewith, with an annular bush or bushes of rubber or the like disposed between them but projecting from the ends thereof and caused to engage the inner surface of the outer member and the outer surface of the inner member by endwise pressure continuously applied thereto by compression members engaging the outer faces of the bush or bushes. the bush or each bush is provided with an outer end face which is of tapered or rounded form so that the transverse plane in which the maximum diameter of the end face lies, is displaced from the adjacent end of the bush, and the face of the compression member which engages the end face has a contour which conforms generally to the contour of the outer end face of the bush, the form of the engaging portions being such that all lines normal thereto project entirely within the confines of the adjacent socket bore. In the application to a shackle for a vehicle spring, Figs. 2 and 3, two rubber bushings 13 inserted between a socket 10a and a concentrically disposed sleeve 16 and each provided with an outer end portion 13b, Fig. 3, having a curved outer end face 13a, are axially compressed between a pair of side plates 11, 11. Each side plate 11 is provided with a substantially correspondingly curved surface 11a where it engages the end face 13d. Each end face 13d may include a flat portion 19. In an arrangement for supporting a torque tube 20, Fig. 6, convex outer end faces 23a of a pair of externally frusto-conical bushings 23 which are disposed within a socket 20a integral with the tube 20, engage with correspondingly shaped surfaces 24a of a pair of compression members 24 and bolt 21.
Patent GB-846129-A (GB)
Title: Improvements in or relating to clutches and brakes
IPC: F16D55/33
Filed: 1957-03-01
Abstract: 846,129. Friction clutches; variable-speed gear; gearing for stopping and starting machinery. TAYLOR, L. March 3, 1958 [March 1, 1957], No. 6982/57. Class 80 (2). [Also in Group XXXIV] A pneumatically - controlled friction disc clutch in the drive to a paper-making machine collecting drum or the like is allowed to slip continuously as the diameter of the wound paper increases, in order to maintain a constant tension in the paper, the clutch disc being formed with internal passages through which a cooling liquid circulates. As shown, a driving gear 14 is fast on the hub of a clutch drum 12 engaged on its opposite sides by friction linings 43, 44, carried by a driven drum 33 and an axially slidable presser plate 39 fast with a ring-shaped piston 37. The driven drum 33 is fast for rotation with a shaft 10 and contains a cylinder 29 within which slides the piston 37. Springs 41 adjustably compressed around studs 42 bias the presser plate 39 and the piston 37 away from the driving clutch drum 12. Compressed-air is admitted through a pressureregulating valve 49 and a cock 50 to a tank 48, the pressure in which is controlled by a bleed valve 52. Compressed-air is fed from the tank through a pipe 53 and a bore 45 in the driven shaft 10 to a bore 46 leading into the cylinder 29, where it acts upon the piston 37 against the bias of the springs 41 to move the presser plate 39 axially into engagement with the driving clutch drum 12. As the diameter of the wound paper on the paper collecting drum increases, the tension with which the paper is wound is kept constant by adjusting the bleed valve 52 to increase the pressure of the air in the reservoir 48 and increase the force biasing the clutch into engagement, so that although the clutch tends to slip more as the drum diameter increases, the clutch engaging force is simultaneously increased. To cool the clutch, liquid is fed in through pipes 25 and a gland 19 to pipes 16, in the hub of the driving clutch drum 12, leading to a space 15 at the centre of the drum, the cooling liquid leaving through similar pipes 16, the gland 19 and pipes 26. The gland 19 is prevented from rotating by a peg 22.
Patent GB-150985-A (GB)
Title: Improvements in connection with storage electric batteries
IPC: H01M10/04
Filed: 1920-03-08
Abstract: 150,985. Philadelphia Storage Battery Co., (Assignees of Holland, W. E., and Pearson, L. J.). Sept. 5, 1919, [Convention date]. Drawings to Specification. Storing accumulators; separators.-To prevent deterioration of accumulators they are stored without electrolyte but the negative electrodes and wooden separators are moistened with water, the positive electrodes being dry. The cells are sealed in this condition, electrolyte being introduced when they are required for use. The wood separators are provided with ribs which bear against the positive electrodes or against perforated rubber sheets adjacent the positive electrodes. The cover of the cell has a filling aperture closed by a plug a perforation in which is sealed during the storage of the cell.
Patent GB-217303-A (GB)
Title: An improved method of forming bonds for permanent way of electric rail or tramways
IPC: E01B11/52
Filed: 1923-03-12
Abstract: 217,303. Clark, E. March 12, 1923. Moulds; clamping and guiding moulds.- Bonds for electric rails are formed and repaired by. casting metal around the ends of the bond in a mould constructed so as to permit surplus metal 1 to be twisted off and leave the terminals in condition for attachment to the rail. The terminal end of a rod or strip is inserted into a mould formed in relatively movable halves b, c adapted to retain the bond end between mating grooves i. The mould comprises also a cap element a, with a pouring opening c, rotatably arranged upon the mould b, c so as to enable the surplus metal to be detached from the cast terminal by twisting the cap by handles k. The channel g leading to the mould proper is triangular, square or polygonal in section. The bottom of the mould is closed by a plug h secured to one of the mould sections. The member c is fixed and the member b is carried by a handle l movable in a fixed guide d.
Patent GB-1508694-A (GB)
Title: Air outlet
IPC: F24F13/072
Filed: 1976-02-24
Abstract: 1508694 Ventilators H KRANTZ 24 Feb 1976 [2 April 1975] 7149/76 Heading F4V An air outlet device comprises outlet passages 3 having individual outlet apertures arranged in a row to produce respective individual air jets alternately directed in the one and the other of two diverging directions 4, 5, wherein the passages 3 are defined by an elongate core 1 provided with recesses alternately in two opposed longitudinal sides in the longitudinal direction of the core 1 and by a hollow member 2 which closes the recesses and has a slot in register with the outlet apertures of the passages 3. The member 2 defines a plenum chamber 6 having its inlet covered by a perforate sheet 7. The device is made from plastics foam or cast metal.
Patent GB-1100832-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: HARRIS PETER JOHN
IPC: F28F9/013
Filed: 1965-02-19
Abstract: 1,100,832. Heat exchanger tube supports. BIRWELCO Ltd. 9 May, 1966 [19 Feb., 1965], No. 7160/65. Heading F4S. In a shell and tube heat exchanger, the tubes 17 are spaced from each other and are supported within the shell by supports 22 arranged at spaced locations therein, each support comprising a stack of thin plates 23 welded together and being arranged to support all of the tubes at each location and being apertured at 25 to permit shellside fluid flow. As shown, the plates 23 are circular to fit inside the shell, and have stamped-out circular apertures 24 for the tubes, and also apertures 26 through which support rods 27 are passed. The rods 27 prevent movement of the plates in their own plane and are fastened to the tube sheets (11, Fig. 1). The spacing of the supports is maintained by sleeves 30 located on the rods 27 between the supports 22.
Patent GB-1378683-A (GB)
Title: Spectacle temples
IPC: G02C5/20
Filed: 1972-02-16
Abstract: 1378683 Moulding spectacle frames H L BOUTON CO Ltd Inc 16 Feb 1972 7251/72 Heading B5A [Also in Division G2] A spectacle temple is moulded in two steps. In the first (Fig. 4), a material 12 which is pliable and manually deformable at room temperature, e.g. P.V.C., is moulded about a wire 10 which is substantially rigid but manually bendable. In the second (Fig. 5), a second material 11 is moulded about the wire and the end of the first material. The second material is substantially rigid and not manually deformable at room, temperature. The first material may be formed with an enlarged end as at 22 to provide an interlocking connection. The two sections may also be solvent welded or chemically bonded together.
Patent GB-194931-A (GB)
Title: Improvements in or relating to valve spring compressors for engines with overhead valves
IPC: B25B27/26
Filed: 1922-03-13
Abstract: 194,931. Hickman, H. G. March 13, 1922. Screwdrivers. - A tool for compressing the springs of engines with overhead valves is formed of a lever 9 with a ring-like enlargement 10 which is made to embrace the valve stem and compress the spring 11. The end 14 of the lever is formed as a screwdriver, this end being normally received in a tubular fulcrum piece 7 pivoted to the rod 4 of a valve holder.
Patent GB-650623-A (GB)
Title: A process for the production of lasts for boots and shoes
IPC: A43D3/02
Filed: 1948-03-10
Abstract: 650,623. Moulding shoe lasts. PELANT, V. March 10, 1948, No. 7357. Convention date, March 14, 1947. [Class 87 (ii)] [Also in Groups VII and XXII] A last 4 is made by casting a low-melting point substance, e.g. Wood's Metal, in a mould made to fit the foot. An extensible stocking 1 is drawn over the foot 2 and then stiffened, e.g. by a celluloid solution to form a mould which is removed from the foot by cutting along tapes 3. The parts are then rejoined and used as a mould to cast the last which may then be ground to shape as at a or have material added as at b. To give the desired arching to the mould the celluloid solution may be first applied to the sole only,of the stocking, which is then placed on a shaped block 5, while the whole stocking is stiffened. The part II of the stocking is less extensivle than the remainder to give a tighter fit in this part and the portion III may be cut off and replaced by a preformed stiffened tip 1a to give any desired toe shape.
Patent GB-720493-A (GB)
Title: Improvements in drill rig equipment
Inventor: CHAPLIN WILLIAM DAVID
IPC: E21B15/00
Filed: 1952-03-21
Abstract: 720,493. Cranes; jacks. CRANES (DEREHAM), Ltd. Nov. 27, 1952 [March 21, 1952], No. 7413/52. Classes 78 (3) and 78 (4). Means for transporting well-drilling rig comprises a number of wheeled bogies 4 each having a hydraulic ram 5 with a spherical upper socket co-operating with a ball on a bearer member 2. The two rear bogies are slidably connected by members 7 to members 8 on the rig. The front bogie is connected to a towing tractor. By operating the rams simultaneously the well drilling rig is raised from the ground and supported on the bogie for transport.
Patent GB-983579-A (GB)
Title: Improvements in or relating to filler materials for gas-shielded welding on weldableaustenitic nickel-chromium steels
IPC: B23K35/30
Filed: 1963-02-26
Abstract: A filler wire, for gas-shielded arc welding austenitic chromium-nickel steels, consists of: .C.0.05- 0.2%, .Si.0.7 - 1.0%, .Mn.1.5 - 2.5%, .Cr.24.0 -26.0%, .Ni.19.0 -21.0%, .Ti and/or Zr.0.2 - 1.0%, .Fe and impurities .balance A comparative filler wire consists of: .C.up to 0.12%, .Cr.25.0%, .Ni.20.0-25.0%, .Mo.1.0 - 2.5%, .Mn.up to 2.0%, .Fe and impurities .balance
Patent GB-935467-A (GB)
Title: Improvements in or relating to eye shields for welders
IPC: A61F9/06
Filed: 1962-02-27
Abstract: 935,467. Light polarizing eyeshields. E. KASEMANN. Feb. 27, 1962 [Feb. 27, 1961], No. 7629/62. Class 97 (1). An eye shield or a welder's helmet comprises two crossed polarizing filters and, mounted between them a rotatable double refracting disc which controls the amount of light passing through the combination. As shown, the double refracting disc 2 is mounted between crossed polarizers 1, 3. The rotation of the disc is controlled by an armature 4 and coil 6 which is part of a circuit containing a switch 8. The switch 8 is controlled by a relay 9 which is in a circuit completed only when the welding electrode 12 is moved near the workpiece 13. When the circuit of relay 9 is closed the relay opens or closes the switch 8 according to whether it is in the position 8<SP>1</SP> or 8, respectively. The disc 2 could be rotated by means of a rotating armature acting through a cable wire.
Patent GB-463591-A (GB)
Title: Improvements in electric cable systems
IPC: H02G15/20
Filed: 1936-03-13
Abstract: 463,591. Cable systems. OKONITECALLENDER CABLE CO., Inc. March 13, 1936, No. 7630. Convention date, March 16, 1935. [Class 36] A seated high-tension cable system comprises one or more conductors 2 having permeable insulation 3, but no lead sheath, a pipe line 1 in which the insulated conductor or conductors is or are loosely disposed, and a degasefied insulating oil 6 under a pressure of not substantially less than five atmospheres and containing loosely packed freely movable solid material 7, the space between the insulated conductor or conductors and the pipe line being partly fitted with insulating oil and partly with solid material. The insulation 3, which may be of impregnated paper, may be wrapped with copper tape ; surgical tape may also be employed to prevent mechanical injury. The material 7 may be sand. Specification 422,979 is referred to.
Patent GB-291907-A (GB)
Title: Improvements in and relating to electric vacuum tubes or lamps
IPC: H01J61/64
Filed: 1927-03-21
Abstract: 291,907. Ellis, E. March 21, 1927. No Patent granted (Sealing fee not paid). Vacuum tubes. - Glowdischarge tubes have two spaced electrodes, one or both being provided with graduations or like indications spaced at distances equivalent to the displacement of the glow along the electrodes for unit changes in the potential applied to the electrodes. Each electrode may comprise a grill or ladder 2 with indents or knobs 7 forming intermediate graduations. The electrodes may be in the form of spaced Archimedean spirals. The tube 1 may be filled with neon and may have a base with contacts 4. The tube may be used to measure inductances, resistances or capacities in radio and other circuits, the resistance of a circuit being determined by measuring the extent of the glow when the lamp is in circuit and a constant voltage is applied and capacities being measured by noting the time period of successive glowings. The Provisional Specification describes also electrodes in the form of long straight wires or parallel or inclined planes with spaced indents or other graduations.
Patent GB-116137-A (GB)
Title: Improvements in Means for Protecting Ships against Torpedo and like Attack.
Inventor: WADHAMS EDWARD GEORGE
IPC: B63G9/00
Filed: 1917-05-30
Abstract: 116,137. Wadhams, E. G. May 30, 1917. Torpedo screens.-To protect vessels from attack by torpedoes and like projectiles, a number of curved plates 1 are mounted around the hull so that the torpedo &c. will run up the curved plate and be thrown over backwards into the sea again. The plates 1 are attached directly and also through L-shaped members 10 to rectangular supporting-frames 2 having rollers 4, 5 running in slots in guides 30; they are also supported by members 20 and pivoted stays 5<1>. The frames are raised and lowered to adjust the position of the plate by ropes 12 passing over pulleys 25, 27. The curved plates 1 are hinged at 13 so that they can be folded.