baber/WOPTO huggingface dataset:
Patent GB-1504757-A (GB)
Title: Assemblies of two members having a magnetic bearing therebetween
IPC: F16C32/04
Filed: 1975-04-29
Abstract: 1504757 Magnetic bearings PADANA AG 29 April 1975 [30 April 1974] 17674/75 Heading F2A A rotor 11 is supported relative to a stator 12 by magnetic bearings 17 each comprising two ferro-magnetic parts 14, 15 carried by the rotor 11 and defining two mutually facing shoulders 16, and magnets 18 so arranged on the stator 12 that the magnetic field has two flux paths 28, 27 which respectively enter or leave the ferromagnetic parts at the shoulders 16 and which pass respectively through the parts but in opposite directions therein to exert a stabilizing effect in a direction of one degree of freedom (in this embodiment the axial direction) which direction is parallel to said opposite flux path directions. Each bearing may be associated with a coil assembly 24 of an actively controlled electromagnet bearing arrangement of known type which stabilizes the rotor in a radial direction. A rotor having internal bearing units is described with reference to Fig. 2 (not shown). The rotor may consist of two ferromagnetic parts which define the shoulders and which are interconnected by a non- magnetic plug (35), Fig. 3 (not shown). An embodiment with one magnet is described, and other modifications are provided with electromagnetic axial control also (Figs. 5 to 7, not shown).
Patent GB-515859-A (GB)
Title: Improvements in or relating to electro-acoustic apparatus
IPC: H04R1/22
Filed: 1938-06-14
Abstract: 515,859. Diaphragms. SHELVIN, J. T. (Siemens & Halske Akt.-Ges.). June 14, 1938, No. 17714. [Class 40 (iv)] An electro-acoustic apparatus having a diaphragm 2 with the marginal portion of its vibrating operative part inclined to the adjacent central portion incorporates a stop 5 which is arranged to support the marginal portion and at least a part of the central portion of the diaphragm when the latter is overstressed and subjected to excessive deflection. As shown, the stop is in the form of a ring and is secured, together with the diaphragm and a cover member 4, to the casing 1. The stop 5 is formed with apertures 6 to produce resonance to predetermined frequencies and may be formed integrally with the casing.
Patent GB-624344-A (GB)
Title: Improvements in and relating to light-sensitive electric discharge devices
IPC: H01J40/00
Filed: 1947-07-04
Abstract: 624,344. Electron discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 4, 1947, No. 17720. Convention date, Sept. 24, 1942. [Class 39 (i)] A light-sensitive electric discharge device comprises an anode, a thermionic cathode, an electrostatic control member having a photosensitive surface facing the anode, and a heat shield for reducing the effect on the control member of the heat and light from the cathode. The heat shield comprises a metal wall member partially surrounding the cathode and a hollow tube-like member perpendicular to the wall member to provide a path for the discharge. Fig. 3 shows an exploded view of the heat shield 27 and control member 19. The cathode 8 may be supported at one end from a vitreous insulator 31 supported by the control member. The anode may be a nickel rod parallel to the cathode and the control member may comprise a nickel base with an oxide surface film on which is deposited antimony and caesium. The filling may be an inert gas such as argon or xenon at a pressure of 100-150 microns. A resistance 39 in series with the control member may be embedded in the filling compound fastening the base to the envelope.
Patent GB-687475-A (GB)
Title: Improvements in or relating to electric circuit components
Inventor: MAYER SIMON ERNST
IPC: H01B1/00
Filed: 1948-07-02
Abstract: An electric circuit component such as a heater, resistor or transformer comprises a non-metallic tube, other than a tube composed of a hydrocarbon polymer, coated internally with silver by the process of Specification 646,921, such coating having been adjusted to a predetermined resistance by drawing, twisting or otherwise distorting the tube.  Prior to such distortion, the coating may be cut into separate strips parallel to the axis of the tube.
Patent GB-134328-A (GB)
Title: Improvements in or relating to Spring Wheels.
Inventor: HUGHES JESSE KNIGHT
IPC: B60B9/26
Filed: 1918-10-31
Abstract: 134,328. Hughes, J. K., and Knight, N. B. Oct. 31, 1918. Spring wheels with continuous outer rigid ring and metal springs other than helical and volute springs.-Spring spokes 17 are formed by bending a flat strip of spring metal upon itself to form a loop, and securing the parallel ends 19 permanently to a block 20. The block is secured between the flanges 14 of the hub 10 bv transverse throughbolts 16, the spaces remaining between the flanges being filled by other blocks 24 similarly secured. The spring spokes are secured to a ring 30 within the felloe 11 by blocks 27 and bolts 25.
Patent GB-681167-A (GB)
Title: Improvements in the construction of power transmitting clutches
IPC: F16D13/28
Filed: 1949-07-07
Abstract: 681,167. Operating clutches. MIDLAND SEWING MACHINE CO., Ltd., and WALKDEN, G. B. Oct. 9, 1950 [July 7, 1949], No. 17932/49. Class 80 (ii). A power transmitting unit comprises a shaft rotatably mounted in spaced bearings carried by a frame, a driving member secured to the shaft, between the bearings, a driven member loosely mounted on the shaft and moved into frictional engagement with the driving member by a wedge. shaped member, disposed between a shoe and a thrush member connected to the driven member and moved by a connection with a hand or foot operated lever. In the arrangement shown, a driving member 1 is secured on a shaft 2 carried in bearings 3, 4 on a frame 7 and a cone pulley 8, freely mounted on the shaft, is normally held out of engagement with the member 1 by a spring 9. The pulley 8 is engaged with the member 1 by means of a slotted wedgeshaped member 10 which is adjustable on the shaft 2 by means of a shoe 11 embracing the shaft and abutting a bearing housing 6 and a thrust member 12 between the pulley 8 and the member 10. The member 10 is adjusted through a connection 14 to a hand or foot lever, not shown. The wedge face of the member 10 engages in a corresponding groove on the shoe 11 and the latter is adjustable angularly of the shaft 2 to facilitate connection of the member 10 to the hand or foot lever. A brake shoe 20 engages the pulley 8 in the clutch-disengaged position. The shaft 2 may be connected to an electric motor through a flexible coupling. End thrust on the shaft 2 when the clutch is engaged, is taken by a collar 15.
Patent GB-402011-A (GB)
Title: New or improved apparatus and process for detecting the presence of combustible gases or vapours
IPC: G01N25/46
Filed: 1933-06-23
Abstract: <PICT:0402011/III/1> A combustible gas detector comprises a conduit 1 containing a catalyst 11 and a differential thermometer 4 of which one bulb 7<1> is situated in the conduit in advance of the catalyst and the other bulb 8 is placed within the catalyst or in the conduit beyond it.  The bulbs 7<1>, 8 contain a multi-phase system capable of generating a considerable differential pressure in response to small variations in temperature due to the oxidation of combustible gases. The system may consist of (1) a volatile liquid e.g. ether and its vapour, (2) a liquid holding a gas in solution, or (3) a gas adsorbed in a substance such as active charcoal or silica gel.  The bend 7 of the U-tube contains a liquid such as mercury, the movement of which may complete an electric circuit and operate a signalling or like device.
Patent GB-152770-A (GB)
Title: Improvements in sliding sash windows
IPC: E06B3/50
Filed: 1919-07-21
Abstract: 152,770. Clement, J. July 21, 1919. Hinged sliding windows; sashes balanced one against another.-In a hinged sliding sash window having the sashes balanced one against the other with the addition of weights to the lighter if necessary, the sashes are made of unequal height so that by reversing their positions a ventilation opening 24 is left at the top of the frame. The lower part of the parting bead is hinged or otherwise removable, and the inside bead is hinged on the opening side of the sash. A metal or like tongue in the frame fits in a rabbet in the sash to exclude draught &c.
Patent GB-563683-A (GB)
Title: Method and means for operating vapour ionic valves for current conversion
IPC: H01J13/32
Filed: 1942-12-21
Abstract: 563,683. Electric discharge apparatus. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Dec. 21, 1942, No. 18102. Convention date, Jan. 9, 1942. [Class 39 (i)] In a discharge apparatus having internal anode sleeves 5 and a screen 4 inside the container 1 surrounding the lower ends of sleeves 5 and the cathode space 3, the interior of sleeves 5 are heated while the apparatus is idling by a source of heat applied locally adjacent the sleeves and an arc spot is maintained on the cathode, in order to maintain the discharge apparatus at a suitable temperature, for instance, a current of 1 ampere may be maintained between a grid 10 associated with each anode 6 and the cathode 2. This may be done by disconnecting the grids from their normal supply and connecting them to a separate source of suitable voltage. A separate exciting anode 11 may also assist in maintaining the preliminary heating discharge and the arc spot required. Alternatively, the anode sleeves may be heated by resistance elements and the anode 11 alone maintains the arc spot. Specification 412,773, [Group XXXV], is referred to.
Patent GB-298921-A (GB)
Title: Improvements in or relating to methods of reducing zinciferous materials
IPC: C22B19/04
Filed: 1927-07-08
Abstract: 298,921. Jackson, L. Mellersh-, (New Jersey Zinc Co.). July 8, 1927. Resistance furnaces.-A zine distillation retort 10 is mounted, in an electric furnace comprising a steel shell 12, a layer of heat insulating powder 13, layers of fire brick 14, and a lining 15 of refractory material. Three pairs of hollow graphite resistances having spiral slots are mounted in tubes 20 on shelves 21. The end of the retort, condenser 23, and hopper 31 are covered with coal dust 33. The spent agglomerates are removed by a pan conveyer 18.
Patent GB-457916-A (GB)
Title: Improvements in and relating to snap fastener studs
IPC: F16B5/06
Filed: 1936-07-01
Abstract: 457,916. Snap fasteners. UNITEDCARR FASTENER CORPORATION, 31, Ames Street, Cambridge, Massachusetts, U.S.A.-(Assignees of Pihl, S. E. ; 625, West Park Street, Dorchester, Massachusetts, U.S.A.) July 1, 1936, No. 18244. Convention date, Aug. 2, 1935. [Class 44] A snap fastener stud made from a ribbon of sheet metal has arms 1 extending from a loop 2 ; these arms first diverge to the points 3 and then converge to the points 6, after which they are flattened to form the base parts 4. The form shown is used for securing carpets and includes a U-shaped clip 7 with its yoke between the cap 5 and the base parts 4. Its ends are turned into the space between the convergent arms, as shown in Fig. 6, so that they do not catch on the carpet when the fastener is inserted. The shank is forced through apertures in the carpet 8 and padding 9, and the ends of the clip 7 are bent outwards, as shown in Fig. 2, to hold the fastener securely in place. The loop 2 and the arms 1 are then pressed into the aperture in the floor 10 until the fastener snaps into its final position. When the fastener is used to secure an upholstery panel the clip 7 is omitted.
Patent GB-1046027-A (GB)
Title: Improvements in immersion mixing apparatus
Inventor: ROTHMAN NATHAN
IPC: B01F7/00
Filed: 1962-05-11
Abstract: 1,046,027. Centrifugal pumps. SILVERSON MACHINES Ltd. April 29, 1963 [May 11, 1962], No. 18252/62. Heading F1C. [Also in Divisions Bl and B2] A pipeline pump for homogenizing solutions of liquid in liquid or for milling of mixtures comprising particulate solid material in liquid comprises a body 17 having a flanged inlet pipe 18 and a flanged outlet pipe 19. An annular plate 22 secured to a shoulder 21 has three concentric rings 24 of teeth which co-operate with three concentric rings 29 of teeth carried by the impeller 27. The impeller blades 28 are carried by a plate 26. The teeth are formed by slots which extend axially along each ring but, in plan view, have their outer ends angularly displaced relative to their inner ends, the displacement being in opposite senses for the rings 24 and 29 respectively. A cylindrical mesh screen may be provided outside the rings. The inlet pipe 18 is connected via a shut-off valve to the bottom of a pressure vessel containing material to be mixed, a return pipe 34 being connected via a shut-off valve to the top of the vessel. With these shut-off valves open and a shut-off valve at the outlet pipe 19 closed, the driving motor (mounted on a cover plate 32) is started. The impeller blades 28 draw the material from the vessel through pipe 18 and return it through pipe 34, the circulation being continued until the material has been sufficiently mixed and comminuted by the teeth on the rings 24, 29. The shut-off valve at the return pipe 34 is then closed and the shut-off valve at the outlet pipe 19 is opened so that the material flows through the outlet pipe to empty the vessel. In an alternative embodiment, the inlet and outlet pipes are coaxial and the return pipe is omitted, the re-circulation being effected instead by a pipe branching from the discharge pipeline. The rings of teeth are omitted, and the impeller operates within a cylindrical casing having peripheral ports through which the material is discharged into the outlet pipe. A cylindrical mesh screen may be interposed between the impeller and the casing to comminute the mixture or improve the mixing.
Patent GB-602179-A (GB)
Title: Improvements in liquid level measurement and control
IPC: G01F23/30
Filed: 1945-07-17
Abstract: 602,179. Automatic control systems. TEXACO DEVELOPMENT CORPORATION. July 17, 1945, No. 18262. Convention date, Aug. 26, 1944. [Class 38 (iv)] [Also in Group XXXVIII] Liquid level.-The level of a liquid or the boundary between two immiscible liquids is determined by detecting the position of a float containing radioactive material by means of a detector, the output of the detector being used to obtain an indication or control of the liquid level. Fig. 1 shows an arrangement in which a guided float 18 containing radio-active material, such as radium, causes a radiation detector 22 to give a signal which is a function of the level of liquid 12 which is applied to an indicating meter 27 and a relay 29 which causes valve 32 to be closed if the level exceeds a predetermined value. Fig. 4 shows an arrangement in which a manually movable detector amplifier 36 is moved to the position in which the amplifier output (an audio frequency) is a maximum in order to ascertain the position of a float which rests at the boundary of two immiscible liquids, such as that between liquid hydrocarbons undergoing isomerisation, and a catalyst. The detector of Fig. 4 may be used for the tank of Figure 1, and the control system of Fig. 1 can be used to control the inlet (44) or the outlet (52), or draw off (54) valves of Fig. 4. In a modification two fixed detectors may be placed at slightly separated heights and connected to the control system in such a manner that the liquid level is maintained at an intermediate height. Where several immiscible liquids are involved similar floats may be employed to determine each of the boundaries. The Specification as open to inspection under Sect. 91 describes also an arrangement for giving a rough indication of fluid density in which a number of floats having graded densities are provided, the approximate density being determined by the position of one or all of the floats. In another modification, the " float '' is fixed in the tank and the detector is also fixed at the same height on the outside of the opposite wall, the intervention of the liquid between the two or its absence causing the detector output to vary and operate a warning, recording or retro-active control system. These arrangements are not included in the Specification as accepted.
Patent GB-602812-A (GB)
Title: Improvements in solenoid devices and apparatus comprising such solenoid devices
IPC: H02K7/065
Filed: 1945-07-18
Abstract: 602,812. Releasing bombs from aircraft. LELAND, G. H. July 18, 1945, No. 18379. Convention date, June 26, 1944. [Class 9 (ii)] [Also in Groups XXXV and XXXVII] In an electromagnetic device there are two opposing members one secured to the electromagnet and the other to the armature with intervening members co-operating with both in such manner that movement of the members towards one another imparts rotary movement to the member secured to the armature. In the form shown in Fig. 3, a ball 34 is placed in each of 3 arcuate channels formed by grooves in the plate 29 secured to the armature 24 and grooves in the fixed core member 26, the depth of the grooves varying along their length as in Fig. 5 (not shown) whereby the movement of plate 29 towards member 26 due to the linear full on armature 24 causes rotary movement of the plate 29. When used as a bomb release, a projection 41 on plate 29 first engages a lever 39 controlling the release and subsequently actuates lever 40 controlling the arming of the bomb, but if it is desired to release a bomb unarmed, an auxiliary electromagnet is excited to arrest the forward motion of plate 29 before the lever 40 is reached. A similar main electromagnet may be given a current impulse each time a bomb is released whereby the armature moves a contact arm 67, Fig. 14, over fixed contacts 64 connected in the circuit of appropriate signal lamps, the movement of the armature being transmitted through a coupling 72, Fig. 11 (not shown) which gives the arm a progressive step by step movement.
Patent GB-710692-A (GB)
Title: Process for the manufacture of a stone and stone obtained by this process
IPC: C04B28/10
Filed: 1950-07-24
Abstract: 710,692. Building blocks. VANMUYSEN, L. July 24, 1950 [July 22, 1949; May 26, 1950], No. 18408/50. Class 87 (1) A building block comprises a composition facing tile or tiles backed by the same material rendered porous. The composition comprises at least one siliceous compound such as sand, schists, quartzites, mica, talc or glass, at least one hydroxide of an alkaline earth metal such as calcium, barium or strontium, and tempering water, cement being absent. The porosity may be produced by mechanical means or by the action of zinc, magnesium, aluminium or alloys or carbides, peroxides, persalts, carbonates or bicarbonates. The block may be provided with a metal reinforcement and the tiles may be given the appearance of hewn stone or may be formed with streaks produced by casting them in contact with sulphuretted or parchment paper. Specifications 654,367 and 646,820, [both in Group V], are referred to.
Patent GB-108425-A (GB)
Title: Improvements in the Construction of Tobacco Pipes and the like.
Inventor: HANFF EDWARD
IPC: A24F1/10
Filed: 1916-12-27
Abstract: 108,425. Hanff, E. Dec. 27, 1916 Tobacco pipes.-Moisture collects in a trap e in a plug f screwed into the base h of the bowl b, which may be screwed into the base. The overhanging part d of the trap may be formed in the base, Fig. 1, or be made separately of metal &c. as shown in Fig. 2.
Patent GB-443331-A (GB)
Title: A gas- or vapour-discharge converter having a metal container
IPC: H01J13/56
Filed: 1935-06-28
Abstract: 443,331. Discharge apparatus. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London. June 28, 1935, No. 18515. Convention date, June 28, 1934. [Class 39 (i)] A gas- or vapour-filled converter comprises a sealed metal bulb which consists of at least two walls of different metals, the inner wall 2, Fig. 1, forming a bulb which is complete with the exception of the insulators and consists of a metal such as iron, steel, chromium, tungsten, molybdenum, alloys thereof or an alloy of nickel and chromium, which does not react chemically with the filling, and the outer wall 3 consisting of metal such as copper, nickel or an alloy .consisting of equal parts of nickel and iron which is impervious to gases and is jointed to the insulators to form a complete bulb. The walls are preferably in contact and may be formed by spraying or electrically depositing one metal on the other or by dipping one metal into a molten bath of the other metal, preferably under a gas which prevents the formation of oxide films. The container should be heated before evacuation and may be provided with inspection windows. The cathode and anode containers 4, 7 are formed with similar double walls, the copper layers being jointed to the insulators 5, 8, 12. A sleeve 10 consisting of double walls, or of metal which is impervious to gases, may be interposed in the anode arm to support a grid 9. The condensation dome 13 may be provided with recesses or pockets to increase the cooling surface. In another form, the bulb consists of a thin internal layer of iron or steel, an intermediate layer of copper and a stout external iron or steel wall which may consist of a cast-iron basket or may be built up of iron rods. The joints may be formed by a sheet-metal member 19, Fig. 5, which is welded to the copper layer 15 and may be fused or soldered to a porcelain or glass insulator 21, or may pass down the side of the insulator 21, Fig. 6, and be fused or soldered into the cathode container 22. The member 19 may be housed within a groove in the external layer 16. Alternatively, the copper layer 15, Fig. 7, may be fused directly into a glass insulator 22 which is adapted to overlap the internal layer 14 to screen the copper layer 15 from the discharge. The Specification as open to inspection under Sect. 91 states also that the double walls may be formed of iron or steel plates the pores in which are closed by coating the heated plates with lead and hammering the coated surface. This subject-matter does not appear in the Specification as accepted.
Patent GB-864351-A (GB)
Title: Process for the production of carboxylic acids
IPC: C07C409/20
Filed: 1957-06-12
Abstract: Carboxylic acids are prepared by reacting a hydro peroxide obtainable by reacting hydrogen peroxide with a cycloalkanone or a hydroperoxy aliphatic, alicyclic or aryl-aliphatic hydrocarbon in which the hydroperoxy group is attached to a non-aromatic tertiary carbon atom the valencies of which are satisfied only by carbon and oxygen atoms, with carbon monoxide in the presence of a substance capable of promoting the free radical decomposition of the peroxy group and which is a reducing agent effective in a Redox system, such as a salt of a heavy metal of variable valency for example iron, cobalt or manganese in the lowest valency state. Reaction is preferably effected at -50 DEG  to +100 DEG C., under a carbon monoxide pressure of 1-500 atmospheres.  Solvents free from molecular oxygen such as water, methanol, urea and water, acetone or benzene may be present as well as emulsifying agents e.g. sulphonated alcohols or soaps.  The reducing agent may be used in stoichiometrical or lesser or greater amounts.  The preferred hydroperoxides are those obtained by reacting an alkyl-cyclopentanone or -cyclohexanone in dioxane with 30-40% hydrogen peroxide.  In Examples: (1) cyclohexanone hydroperoxide is reacted in methanol or aqueous urea with CO and ferrous sulphate in an autoclave, yielding pimelic acid; (4) cyclopentanol is oxidised with O2 at 45 DEG C. under ultra-violet light and the resulting cyclopentanone hydroperoxide is reacted as in (1) in methanol yielding adipic acid; (5) 2-methyl-cyclohexanone is peroxidised in dioxane with 30% H2O2 and the product treated in aqueous urea as in (1) yielding 2-methyl pimelic acid; (b) aqueous tert. butyl alcohol hydroperoxide (CH3)3 C-OOH is treated with ferrous sulphate under CO pressure yielding acetic and propionic acids, tert,-butanol and acetone; (7) cumene hydro peroxide is treated as in (6) yielding acetic and propionic acids, cumyl alcohol and acetophenone. Specification 697,506 is referred to.