baber/WOPTO huggingface dataset:
Patent GB-382529-A (GB)
Title: Improvements relating to domestic firegrates
IPC: F24B1/19
Filed: 1932-03-16
Abstract: 382,529. Domestic firegrates. OWEN, P. and CRITCHLOW, A., Sneyd Pottery, Albert Street, Burslem, Stoke-on-Trent. March 16, 1932, No. 7753. [Class 126.] A firebrick or like grate bottom, shown as applied to a fire at hearth level, is formed of a front member 12, and blocks 11 to the rear of it, air inlets 14 in the member 12 communicating with passages 19 in the blocks 11, from which outlets 20 deliver the air to the fuel. In the form shown, the member 12 is a block extending along the front of three rear blocks 11. A chamber 17 is formed at each end of it, to which air passes through apertures 14 in a grid at hearth level. From each chamber 17, the air passes to a passage 18, formed half in the rear face of the block 12 and half in the front faces of the blocks 11, the passage 18 leading to the passages 19. The passages 19 are formed in halves, one at the meeting faces of the central and outer blocks 11, and one at the meeting faces of the outer block 11 and the side 15 of the fire back, the latter communicating with a further passage 22 formed half in the rear faces of the blocks 11 and half in the back 16. The outlets 20, 23 leading from the outer passages 19 and the passage 22 are formed in part in the fire back. Ashes collect in spaces 24 formed under the air passages, and are collected by lifting out the blocks. Ribs 21 are formed on the blocks 11 between the air openings 20. In modifications, the grate bottom is above hearth level, and the front member is formed by a metal or faience fret.
Patent GB-797317-A (GB)
Title: Improvements in or relating to shaft seals
Inventor: FORD GEORGE WILLIAM KINVIG
IPC: F16J15/34
Filed: 1956-03-13
Abstract: 797,317. Stuffing-box substitutes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 7, 1957 [March 13, 1956], No. 7776/56. Class 122 (5). One element of a rubbing-collar shaft seal is made of high heat conductivity metal, e.g. copper, faced on its working face with chromium, and the other element is made of composite carbon material containing no graphite; the floatingly-mounted metal collar may rotate against a fixed carbon ring, the contacting faces being ground to the same limits of optical flatness.
Patent GB-748498-A (GB)
Title: A new or improved method of and apparatus for pouring molten metal
IPC: B22D39/06
Filed: 1953-03-23
Abstract: 748,498. Crucibles. BIRLEC, Ltd. March 23, 1953 [March 21, 1952], No. 7862/53. Class 82(1). [Also in Groups XII and XXII] Molten metal is poured from a heated gastight chamber 12 through an inclined discharge tube 28 extending from within the chamber below the metal surface 14 to outside the chamber above the surface by intermittently supplying gas under pressure to the chamber above the surface, the discharge tube having a restricted metal inlet orifice 48 or like flow-throttling constriction at its lower end. To obtain pourings of constant weight the metal level may be maintained steady by tilting the chamber or re-charging it or the time of pour which may be electronically controlled may be steadily increased, the surface not being allowed to fall more than four inches below the discharge level. Gas is supplied through a valve 25 for effecting the pouring, and the pressure then released to the atmosphere by valve 20, and an induction heater 16 maintains the metal molten. Instead of an axial hole in the closed lower end of the discharge tube the constriction may consist of a radial hole in its wall, or may be provided by a refractory brick spaced near to the end of an open discharge tube. Specification 611,549 [Group XI], is referred to.
Patent GB-899028-A (GB)
Title: Improvements in or relating to the electrolytic manufacture of iron
IPC: C25C1/06
Filed: 1961-03-03
Abstract: 899,028. Depositing iron electrolytically. MONTAN - UNION HANDELSGESELLSCHAFT. March 3, 1961 [March 3, 1960], No. 7942/61. Class 41. A continuous process for depositing iron from an electrolyte containing it, electrolytically, uses as cathode an endless moving strip upon which a firmly adherent thin layer of iron is deposited. The iron-poor electrolyte is withdrawn and replenished with Fe<11> ions, by adding FeSO4 from iron pickle solution or by dissolving iron scrap therein, preferably with addition of acid, and removing undesired metals before returning the re-charged electrolyte to the main cell. The re-charging is effected in a battery of vessels, to provide a continuous supply of new electrolyte. A matrix of copper strip 1, covered with a separating layer, e.g. of a heavy metal oxide or sulphide, passes through a preliminary electrolytic cell A in a vertical position where a thin coating of iron is deposited at low current density, and is smoothed by steatite elements 4 before entering the main electrolytic cell B. Anodes 3 are mounted close to the strip providing high current density at lower pH values. The coated matrix is then neutralized by washing with alkali in a spray bath 5 and is washed in a spray bath 6. At 7 the iron powder is removed from the strip by high-frequency vibration, hot inert gas, infra-red or electric induction heating of the strip, which is finally coated with a corrosion inhibitor, e.g. dicyclohexylamine nitrite, and re-coated in an inert atmosphere with the separating layer. The iron electrolyte is introduced into the cell B preferably vertically to flow across the face of the vertical strip, and the anodes of graphite or magnetite have convex faces to prevent heavier deposit of iron at the edges of the strip. Iron-depleted electrolyte is fed through a pipe 19 into one of the battery of dissolution vessels 9, where the electrolyte is circulated through a pipe from the bottom to the top of the vessel charged with scrap, and having a porous false bottom through which HCl or H2S is forced to form fine streams into the electrolyte. The vessel may be heated or cooled. The enriched electrolyte is led to a reactor 13 where nickel and copper are partly removed by precipitation on iron powder added in the reactor. The partially purified electrolyte then passes to an intermediate electrolytic cell 14 where traces of Ni and Cu are removed by deposition. Final treatment with reagents, e.g. sodium fluoride, in a vessel 15 removes Cr, Zn, Mn, Al and Sn and some ferric iron as an insoluble complex, which is separated in a filter 16 together with carbon, sulphur, and other solid impurities. Instead of iron scrap, pickle solution may be used after reducing ferric salts with H2S, and a solvent added whereby the ferrous sulphate is precipitated, which is separated and re-dissolved in water and admitted to the dissolution vessel 9.
Patent GB-1379705-A (GB)
Title: Method and device for autmatic voltage adjustment
IPC: G05F1/62
Filed: 1973-02-19
Abstract: 1379705 Automatic voltage adjustment BBC BROWN BOVERI & CO Ltd 19 Feb 1973 [21 Feb 1972] 8034/73 Heading G4H A D.C. voltage E out  is automatically set equal to a desired reference level E ref  by superimposing a varying correction voltage e s  on an input voltage E in  and holding the correction voltage when it obtains a value which balances comparator 2. As shown, the correction voltage is derived from a digital-to-analogue converter connected to a binary counter 8, which is stepped from zero by clock pulses from 9 when flip-flop 6 is set manually. When comparator 2 balances, the flip-flop 6 is reset so stopping counter 8 and holding e s  at its then value. If counter 8 fills before comparator 2 balances, flip-flop 6 is reset via line N and OR gate 5. 1 may be an operational amplifier with resistive feedback, Fig. 3 (not shown). The invention may be used in a B-H magnetization curve tracer.
Patent GB-740349-A (GB)
Title: Improvements in or relating to gyroscopic apparatus
Inventor: SEDGFIELD HUGH BROUGHAM
IPC: G01C19/38
Filed: 1949-03-24
Abstract: 740,349. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Ltd. Feb. 23, 1950 [March 24, 1949], No. 8071/49. Class 97 (3). In a gyroscope apparatus the rotor is completely enclosed in a casing which is immersed in mercury inside a closed follow-up frame and the casing is supported in the container so as to have angular freedom about two axes intersecting at the centre of buoyancy of the sensitive element. As shown, Fig. 2, the rotor 15 is completely enclosed in the casing 9, the hollow centre section 12, 13 of which forms a support for the rotor bearing. The casing is immersed in the mercury 23 carried in follow-up frame 2 and is located and pivoted to the frame by rod 25, one end of which is bolted to 2 and the other end of which carries a universal joint 40 so as to permit limited relative movement of 2 and 9 about two perpendicular axes. Relative displacement between 2 and 9 is detected by magnetic pickoffs, e.g. 6, which effect energization of servomotors 7 and 8 to restore normal alignment of 2 and 9. The electric torque motors 57, 58 are fitted to apply precessional torques to the case 9 about axis AB and the axis perpendicular to AB and the rotor spin axis. The temperature of the frame 2 is maintained constant automatically by coils 41, 42. Specification 740,350 is referred to.
Patent GB-833026-A (GB)
Title: Improvements in or relating to method of coating furnace surfaces and composition therefor
Inventor: MURPHY SAMUEL FILLMORE
IPC: C04B35/66
Filed: 1957-03-12
Abstract: A method of forming a coating on the refractory flame-exposed surfaces of a high temperature furnace includes the steps of mixing a finely powdered chrome ore composition comprising predominantly chromite which is insensitive to the operating temperature of the furnace and which determines the heat-resisting properties of the final furnace surfaces, and from 1 to 6% by weight of a suspension agent, said chrome ore composition containing more than enough iron oxide to form an iron chrome spinel, the free iron oxide amounting to between 4 and 6% by weight and serving as a fluxing agent, spraying the cement slurry under high pressure and in progressive fashion upon the flame-exposed surfaces of the furnace while the furnace is in operation to form a heat-resisting coating thereon, and utilizing the furnace heat, first, to activate the fluxing agent and produce a fusing bond between the chrome ore composition and the furnace surfaces as the coating is gradually built up by the spraying operation and, second, to set and harden the coating, after it has been bonded to the furnace surfaces and convert it into a solid integrated sheet mass.  The suspension agent may be colloidal clay or carboxy methyl cellulose.  The composition may also contain other oxides such as the magnesia-alumina spinel and ferric oxide, small amounts of sodium oxide and silica, a binding agent such as sodium silicate and a dispersing agent such as a sulphonated petroleum product.
Patent GB-957913-A (GB)
Title: An arrangement for transmitting control orders
IPC: B61L23/00
Filed: 1961-03-06
Abstract: 957,913. Magnetic signalling arrangement. SIEMENS-SCHUCKERTWERKE A.G. March 6, 1961 [March 5, 1960], No. 8176/61. Heading B7N. [Also in Division B8] A magnetic signalling arrangement for a tubular conveyer system in which signals are transmitted from a conveyed cylindrical container to a point on the conveyer path and in which the container is capable of a rotational rocking movement during transit along the path, comprises a transmitter on the container 1 formed by two magnets 2, 3 joined by a magnetic strip 4 and a receiver on the outside of the non-magnetic conveying tube 15 formed by a Hall voltage generator 10 with polepieces 11, 12 connected to magnetic baffles 13, 14. The container may rotate 45 degrees in either direction from the position shown without affecting the direction of magnetic flux flow in the receiver produced during passage of the transmitter. Fig. 5 (not shown) indicates an arrangement incorporating three magnetic signalling channels each comprising a single magnet transmitter and two Hall voltage receiving elements. The arrangement may also be used in a railway system when a transmitter is mounted on a sprung part of a vehicle.
Patent GB-577123-A (GB)
Title: Automatic change-speed gear for bicycles and the like
IPC: B62M9/10
Filed: 1944-05-02
Abstract: 577,123. Variable - speed geaxing. GATES, G.R.G. May 2, 1944, No. 8206. [Class 80 (ii)] In a change-speed gear for bicycles and the like in which a multiple sprocket 12, 13, 14 is shifted axially to engage selectively, a guided driving chain, the changes are effected automatically according to the driving torque. The sprockets 12, 13, 14 are secured to a member 16, which is rotatably mounted upon an axially movable sleeve 19 upon the inner hub portion 20 of the wheel. The member 16 carries two diametrically opposite rollers 39 which form a driving engagement with a cam member 30 secured to the outer hub portion 23 of the wheel. A spring 34 acting through a sleeve 35 and rods 36 onto the sleeve 19 tends' to keep the rollers 39 on the bottom of cam face 31, the position X in Fig. 3, which corresponds to the high gear position of the sprockets. On increase of driving torque the rollers 39 move up the cam slope 31 against the spring 34 to a position Y for a second speed and a position Z for low speed, the cam being formed with steep and gradual slopes so that a step-by-step action is obtained. On reduction of driving torque the rollers 39 move down the cam again to effect successive "up" changes. In Fig. 4 a centrifugal device is shown which holds the gear in the second or low position under certain circumstances, for example, on dismounting on a hill when the gear would normally go back to the high position. A pivoted weight 49 secured to spokes 26 near the rim 27 of the wheel acts against a spring 50 of a detent 42 engaging a notch 44 in the member 16 to hold the gear in the low or second position until the speed rises sufficiently to cause the weight 49 to release the detent 42. In another arrangement centrifugal weights act directly on the member 16 against a spring to move the rollers 39 over flat portions of the cam which are specially provided and which prevent the return movement of the rollers 39 under the action of spring 34 alone. All the sprockets may be provided with free-wheels or only the top gear sprocket since on easing the driving torque to freewheel the gear will always return to the top gear position.
Patent GB-747805-A (GB)
Title: Improvements in or relating to progressively adjustable friction gears
IPC: F16H15/14
Filed: 1954-03-22
Abstract: 747,805. Variable-speed friction gear. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK March 22, 1954 [March 27, 1953], No. 8334/54. Class 80(2) To equalise axial pressures on friction discs 7 splined on four or six countershafts 6, driven by a central input shaft 2 through toothed idlers 4 about the axes of which latter the countershafts 6 are simultaneously pivotally adjustable for variable radial interpenetration by their discs into discs 27 splined on a central output shaft 9, the countershafts are divided into groups of two or three, each of which has its own end pressure disc 21, 24 on the shaft 9, each subject to identical axial loading by separate springs 22, 25, which may be balanced. The coacting end countershaft discs 20 of one group are thicker than the others, and those 23 of the other group are of H-section to accommodate with clearance the end output-shaft disc 21 of the first group. The end discs 21, 24 are splined together. A similar arrangement of separate backing discs may be provided at the opposite end (Fig. 4, not shown), the outer end disc on the output shaft being spherically seated on the inner. Either the countershaft or the output shaft discs may carry the usual peripheral bead.
Patent GB-760616-A (GB)
Title: Improved method of and means for changing bobbins on creels
IPC: D02H1/00
Filed: 1954-03-23
Abstract: 760,616. Creels. DIETZ, W. March 23, 1954 [March 23, 1953], No. 8428/54. Classes 120 (2) and 142 (2). In a method of changing bobbins in creels having adjacently disposed bobbin skewers, the bobbins, before they are fully unwound, are transferred from their main position to a secondary position situated in the space 6 between four main positions 1, 2,À3 and 4 and a fresh bobbin is fitted in the main position thus made available the leading end of the thread of the latter bobbin being knotted to the thread reserve of the bobbin continuing to unwind in the secondary position. In creels for carrying the method into effect the holders 17 of the bobbin skewers may have two fitting parts 18 and 19 by which they are mounted at will on bars 16 of the creels, one part being angled in two planes with respect to the other part so that when the bobbin is in the main and the secondary position its axis points towards the usual thread guide eye. In other embodiments the holders are mounted in arcuate guides so that they can be slid from the main position to the secondary position or there may be a fixed bobbin skewer situated in each main and secondary position. An arrangement in which the bobbin supports are arranged on a plurality of separate displaceable frames is also described.
Patent GB-813078-A (GB)
Title: Improvements in or relating to releasable connections and articles using such connections
IPC: G03B17/02
Filed: 1957-03-15
Abstract: 813,078. Catch fastenings. LANGE, K. H. March 15, 1957 [April 18, 1956], No. 8608/57. Class 44 [Also in Group XX] A releasable connection between two members adapted for movement into edgewise engagement with each other comprises a press button 2 carried by one member which is urged into a locking position by a resilient element 1 and displaceable perpendicularly to the direction of engaging movement of the two members the press button having a transverse slot 6 inclined to the direction, the other member having a cut away part 8 for embracing the press button, the cut away part providing a tongue 7 adapted to engage the inclined slot and displace the press button as the members are moved into engagement and thereafter disengage the inclined slot so that the press button is released into the latching position. As shown the connection is applied to a camera body the member carrying the press button having two edges between which the edge of the member having the cut-away part 8 is received. To prevent accidental opening the lock can be provided with two press buttons 2 and cut-away parts 8.
Patent GB-234781-A (GB)
IPC: H03B19/03
Filed: 1925-03-31
Abstract: 234,781. Lorenz Akt.-Ges., C., (Assignees of Schmidt, K.). May 31, 1924, [Convention date]. Frequency, changing.-In devices for frequency multiplication comprising a high frequency generator G and a frequency transformer T, the generator is coupled to an oscillating circuit including a self induction Lp containing no iron or iron weakly saturated and a capacity Cp, this circuit being tuned to the fundamental frequency of the generator and coupled in any manner to the circuit of the transformer. The generator can be connected across a variable amount of the self-induction Lp and the primary circuit of the transformer can also be connected across a part or the whole of such self-induction. Specification 194,007 is referred to.
Patent GB-1407125-A (GB)
Title: Pressure responsive visual warning devices
IPC: G01L7/08
Filed: 1973-02-22
Abstract: 1407125 Pressure gauges GENERAL MOTORS Ltd 24 Jan 1974 [22 Feb 1973] 8694/73 Heading G1L In a pressure responsive visual warning device a plastic housing 1 has a front panel 4, provided with a window 5, snap fitted in a peripheral groove 3 and an indication disc 9 provided with a knurled adjusting portion 12 snap fitted into a groove 5 in a spindle 8 and the arrangement is such that a flexible diaphragm 18, when subjected to a vacuum moves a spindle 24 out of an aperture 25 in the disc 9 to allow the disc 9 to be moved by spring 26 to a position at the window 5 indication that a device, such as a filter connected to a hollow spigot 20, requires renewal.
Patent GB-1505012-A (GB)
Title: Consumable arc welding electrode
IPC: B23K35/30
Filed: 1976-03-04
Abstract: 1505012 Welding by fusion LA SOUDURE ELECTRIQUE AUTOGENE PROCEDES ARCOS SA 4 March 1976 [27 March 1975] 08768/76 Heading B3R [Also in Division C7] A consumable arc welding electrode having a flux coating, the electrode consisting of a core based on iron, or of mild or low alloy steel and the coating comprising dry powders having the following composition in per cent by weight of the dry powders: metallic powder (e.g. iron) or powders 45-75 deoxidizer(s) 8-15 MgCO 3  and/or MgO 10-20 TiO 2  and/or ZrO 2  8-15 iron oxides() and/or iron carbonates 2-8 the dry powder being mixed with a bonding agent of aqueous alkali metal silicate(s) in amounts of 15-30 parts of silicate(s) to 100 parts of the dry powders. The deoxidizer may be one or more of FeMn, FeSi, FeTi, FeSiTi, FeSiMnAl, and up to 5% of the metallic powders may be one or more of Ni, Mo, Cr. The flux coating may also contain up to 4% CaCO 3 , up to 3% organic material, up to 5% of crystite or one or more of Ca, Mg and Al fluoride and the ZrO 2  may be present as ZrSiO 4 .
Patent GB-403618-A (GB)
Title: Improvements in electromotor-driven lift operating mechanism
IPC: B66B1/32
Filed: 1932-03-24
Abstract: 403,618. Maintaining defined speeds of motors. GRAHAM BROS. AKTIEBOLAG, 34, Norr Malarstrand, Stockholm. March 24, 1932, No. 8899. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 17, 1932]. [Class 38 (iii).] A D.C. motor 4, Fig. 1, driving a lift is maintained at a constant slow speed, when the lift is approaching a landing at which it is to stop, by a brake 6 operated electromagnetically in accordance with the motor current. During normal running the brake is released by energization of a winding 13, 14. For slow speed operation the winding 13, 14 is de-energized, a winding 9, 10 is energized to assist a spring 15 to apply the brake and contacts 17 are opened so as to energize a winding 11, 12 with the motor current, the winding 11, 12 opposing winding 9, 10 and thus reducing the braking force upon increase of motor current. In one modification a three phase A.C. motor is used and the braking effect is reduced by a winding 31, 32, Fig. 2, connected in series with phase I. The supply to the windings may be rectified to reduce noise. In another modification an auxiliary motor is used either to produce or to reduce the braking pressure.