baber/WOPTO huggingface dataset:
Patent GB-1412468-A (GB)
Title: Sealing packing or joint forming in particular a cylinder head  gasket for an internal-combustion reciprocating-piston engine
IPC: F16J15/08
Filed: 1972-11-04
Abstract: 1412468 Joint-making packing SOC D'ETUDES DE MACHINES THERMIQUES 4 Nov 1972 50940/72 Heading F2B A metal packing, e.g. for use as a cylinder head gasket includes a relatively wide portion 11 of a more easily deformable nature for location at the cylinder bore and an outer relatively narrower more rigid portion 10. The portions 10, 11 may be integrally formed, the portion 11 having grooves or flutes, e.g. 15, 15<SP>1</SP> on one or both sides, or portions 10, 11 of metals of different elasticity may be joined.
Patent GB-1080818-A (GB)
Title: Improvements in fuel injection pumps having a rotary distributing valve
IPC: F02M41/06
Filed: 1964-12-15
Abstract: 1,080,818. Fuel injection pumps. SOCIETE INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE. Dee. 15, 1964 [Dec. 19, 1963], No. 51058/64. Heading F1A. The pump described in Application 49233/64 is modified in that no lubricant pump is provided, lubrication being ensured by the fuel, which fills the pump casing, and a modified means is employed to rotate and axially displace the distributing valve 2, Fig. 1, with respect to the shaft 4. An extension 2a, of the distributing valve 2 carries three sleeves 40, 42 and 41 retained by a nut 47, sleeve 41 being secured, as by welding, to the valve. The adjoining faces of sleeves 40 and 42 and sleeves 42 and 41 are respectively prevented from relative rotation by first and second sets of interlocking teeth, the sets having different numbers of teeth, which numbers may be 24 and 25 respectively, so that on loosening the nut 47, the angular position of sleeve 40 with respect to the distributing valve 2 may be finely adjusted. Sleeve 40 is formed with two lugs 40a, Fig. 3, which engage in two helical slots 45 formed on the inner surface of a hollow cylindrical member 26, the outer periphery of which has two longitudinal ribs 26a slidable in two grooves provided in the shaft 4 parallel to the shaft axis. Outward movement of the weights 28 of a governor results in a push piece 32 moving the member 26 to the right against a spring 27 and thus rotating the valve 2 relative to the shaft 4. As in Specification 49233/64, axial movement of the valve is opposed by resilient means arranged to yield after the spring 27. Reference has been directed by the Comptrollerto Specification 947, 158.
Patent GB-1082637-A (GB)
Title: Improvements in and relating to sputter deposition methods
IPC: C30B23/06
Filed: 1964-12-21
Abstract: <PICT:1082637/C6-C7/1> In an atmosphere containing an electro-negative gas, a coating of a compound of the gas is deposited by sputtering, maintaining the substrate positive relative to an anode; the substrate is then maintained negative relative to the anode and another coating deposited.  The gas may react with the coating or the substrate to form the compound. Apparatus comprises a vacuum vessel formed by a bell jar 13 and a base 14 within which a substrate 10, an anode 11, a movable shutter 19 and a cathode 12 having an earthed shield 18 are disposed. Inert gas and the electro-negative reactive gas are introduced into the vessel through valved conduits 23, 24 and another valved conduit 20 is connected to a vacuum pump.  To deposit tantalum on a glass substrate, a tantalum oxide adhesive layer is formed by passing argon and 1/2 % oxygen into the vessel applying a positive bias to the substrate of 3-5 volts with respect to the anode to attract oxygen ions to the substrate, and initiating a glow discharge by applying a negative voltage of 3000 v to the cathode.  After 30-60 seconds the oxygen supply is stopped and a negative bias is applied to the substrate of 100-200 v to prevent the arrival of oxygen ions.  Sputtering continues and a Ta layer is deposited.  Si may be deposited and N2 or Cl2 may replace oxygen when the substrate contains nitrides or chlorides.
Patent GB-1270033-A (GB)
Title: Louspeaker
IPC: H04R7/02
Filed: 1969-05-09
Abstract: 1,270,033. Diaphragms; moving coil loudspeakers. NIPPON GAKKISEIZO K.K. 9 May, 1969, No. 52064/71. Divided out of 1,270,032. Heading H4S. A loud-speaker includes a rigid self-supporting diaphragm 21 (Fig. 3) of foamed plastics material secured at its periphery to a speaker frame 22 to generate sound by bending motion. Soft material 27 (e.g. foamed or unfoamed rubber or rubber-like material) having a specific gravity in the range 0À1 to 1À25 is applied to the diaphragm 21 at the periphery and has sufficient mass to prevent harmonics of the resonant frequency of the diaphragm from being developed in the frequency range of about 70 to 150 Hz. The material 27 may be attached around the whole or part of the periphery of the diaphragm. It may be on one or both faces of the diaphragm. There may be a small space between it and the loud-speaker frame (Fig. 6, not shown). It may be of uniform cross-section throughout the periphery or the cross-section may vary. The diaphragm is preferably of foamed polystyrene of specific gravity 0À02 to 0À20. The total weight of soft material 27 is 20 to 200% of the total weight of the diaphragm, e.g. 100%. A polyvinyl sheet may be applied to the front sheet of the diaphragm to improve its flexural rigidity and internal frictional loss. The diaphragm 21 may be attached to the frame 22 by a cushion of tape 26. The diaphragm is preferably of asymmetric shape, the soft material 27 having a larger width in the direction of the major axis than in the direction of the minor axis (Fig. 5, not shown). Additional foamed or unfoamed rubberlike elastomer 58 (Fig. 8) may be superimposed on the soft material 57. Soft material in the form of adhesive tape 67 (Fig. 9) may join the diaphragm 61 to the speaker frame 62. In a modification of the embodiment of Fig. 9 the outer edge of the diaphragm may be aligned with the inner edge of the frame (Fig. 12, not shown) so that the diaphragm cannot act as a piston. Alternatively, soft material 87 (Fig. 13) is secured to the speaker frame 82 and the edge 83 of the diaphragm 81 terminates midway of the attaching surface 85 of the speaker frame 82. An adhesive 86 of soft foamed plastics material, such as foamed polyurethane, is adhered to the diaphragm 81.
Patent GB-1364695-A (GB)
Title: Apparatus for testing circuit packages
IPC: G01R31/28
Filed: 1971-11-16
Abstract: 1364695 Shoots SIGNETICS CORP 16 Nov 1971 [27 Nov 1970] 53185/71 Heading B8S An apparatus for testing integrated circuit packages 20 by means of an electrical tester which operates a test sequence, comprises an inclined track 15 on a base 12, the packages gravitating in an aligned row from an upper region 20 to a lower region 24 through an intermediate test region 19, a holding means 21 arresting the packages one at a time and contact means 36 movable into engagement with the arrested package to electrically couple the package to the tester, whereafter the contact means and then the holding means are withdrawn to allow another package to move into the test region. The packages are supplied to and removed from the track through storage tubes 23, 25. The track 15 is formed by a groove 16 having guide rails partially thereover to restrain the packages 20 and the holding means comprises a pivotal rocking member 44 spring biased into the holding position and releasable by a pneumatic ram 14. A protrusion 21 at one end of the member 44 arrests the package to be tested and a protrusion 46 at the other end of the member prevents movement of the following packages 20 when the tested package is released. The contact means 36 comprise two sets of contact fingers 38 mounted on a holder 26 movable against spring bias by a pneumatic ram 13 into the package engaging position, the tester being energized via a switch once the holder 26 is moved by the ram. The rams 13 and 14 are coupled in a pneumatic circuit such that upon exhausting the ram 13 to disengage the contact fingers, the ram 14 is energized to release the tested package. In another embodiment Figs. 8, 9, 10 (not shown), protruding contacts on the packages are supported on one side by a guide movable into contact therewith as the contact fingers are brought into engagement with the other sides of the contacts.
Patent GB-1523929-A (GB)
Title: Catalytic composite and use thereof in hydrocarbon conversion
IPC: C10G35/09
Filed: 1975-12-31
Abstract: 1523929 Hydrocarbon conversion catalyst U O P INC 31 Dec 1975 [2 Jan 1975] 53280/75 Heading B1E [Also in Division C5] An acidic catalytic composite for hydrocarbon conversion comprises a porous carrier material containing, on an elemental basis, 0.01-2 wt.% platinum group metal, 0.5- 5 wt.% cobalt, 0.01-5 wt.% germanium and 0.1-3.5 wt.% halogen, wherein the metal components are uniformly dispersed throughout the porous carrier material, and where the platinum group metal is present in the elemental metallic state, the germanium is present in an oxidation state above that of the elemental metal, and the cobalt is present in the elemental metallic state or in a state which is reducible thereto under hydrocarbon conversion conditions. Platinum, with cobalt and germanium, supported as gamma alumina is exemplified.
Patent GB-1481719-A (GB)
Title: Liquid crystal cell
IPC: G02F1/1335
Filed: 1974-12-10
Abstract: 1481719 Controlling light THOMSON-CSF 10 Dec 1974 [12 Dec 1973] 53468/74 Heading G2F [Also in Division G5] In a display cell comprising a liquid crystal layer between transparent support plates, the internal surface of one plate is covered with a continuous transparent electrode and that of the other plate bears a shaped, segmented, transparent electrode and one or more continuous dielectric layers with refractive indices and thicknesses such that in cooperation with the refractive index and thickness of the shaped electrode and the refractive index of the liquid crystal and plate material they provide a coefficient of reflection which is greater in regions adjacent the shaped electrode than where the electrode is absent. The shaped electrode may overlie the dielectric layers, or be covered thereby and insulated from the liquid crystal layer. As described and shown the cell is viewed by light reflected from the side bearing the continuous electrode. In a first embodiment, three dielectric layers lie between the plate and the shaped electrode. In a second embodiment, a single quarter-wave layer, 0.09Á, yellow-green light, of crown glass is deposited on a flint glass plate and overlaid with a tenindium oxide shaped electrode and homotropically aligned MBBA, for reflectivities of 1% and 8% in the absence and presence of the electrode. A further cell with maximum contrast for illumination at 45 degrees with light of # = 5560Š is mentioned without precise details.
Patent GB-1137280-A (GB)
Title: Apparatus for quenching metal plates
IPC: C21D1/667
Filed: 1966-11-29
Abstract: 1,137,280. Quenching apparatus. DREVER CO. Nov.29, 1966 [Jan.13, 1966], No.53500/66. Heading C7N. [Also in Division B2] An apparatus for providing a continuous high intensity uniform quench to a hot flat metal plate 38 Fig.1 comprises feedrolls 10, 12, 14 and 16, disc rollers 44, 46, 52, 54, 60 and 62 for preventing distortion of the plate, rollers 44 and 46 being spaced as far as possible from rolls 12 and 16 consistent with maintaining flatness of the plate, parallel quenching tubes 18 and 20 having closely spaced longitudinally aligned holes therein through which the quenching liquid (e. g. water) escapes under pressure to be deflected in the direction of travel of the plate by curved deflectors 32 and 34, so set that the quench curtain strikes the plate at a minimum distance from entry rolls 12 and 16 and further quenching stations 66, 68, 70 and 72 for maintaining the original quench. The separate pairs of rollers are opposite each other perpendicularly across the plate as are the discs on the disc rollers. The discs are staggered across the line of travel of plate on the three sets of disc rollers. The quench spray curtain preferably strikes the plate at an angle of 10 degrees to 40 degrees.
Patent GB-1213816-A (GB)
Title: Trifluoroacryloyl fluoride
Inventor: HASZELDINE ROBERT NEVILLE
IPC: C07C57/76
Filed: 1967-11-24
Abstract: 1,213,816. Trifluoroacryloyl fluoride; tetrafluorosuccinic anhydride. PENNSALT CHEMICALS CORP. 20 Feb., 1969 [24 Nov., 1967], No. 53641/67. Heading C2C. Trifluoroacryloyl fluoride is produced by the pyrolysis of tetrafluorosuccinic anhydride or an alkali-metal or alkaline-earth-metal salt of tetrafluorosuccinic acid, under anhydrous conditions. The pyrolysis of the anhydride may be conducted in the presence of an alkali-metal or alkaline-earth-metal fluoride and the pyrolysis of salts of tetrafluorosuccinic acid may be accompanied by the production of tetrafluorosuccinic ahydride as a by-product.
Patent GB-1184209-A (GB)
Title: Improvements relating to Electrical Heaters
Inventor: ADDINGTON-SMITH THOMAS BASIL
IPC: H05B3/18
Filed: 1967-11-24
Abstract: 1,184,209. Electric resistance heater. KENDELLS STONE & PAVING CO. Ltd. 18 Nov., 1968 [24 Nov., 1967], No. 53691/67. Heading H5H. An electric heater comprises an electric heating element embedded in a body made of hydraulic cement and a non-combustible fibrous synthetic material. The cement may contain mats of chopped strand glass fibre and/or chopped glass strand or chopper glass fibre. The hydraulic cement may be a high-alumina or a gypsum cement. The heating element may be a flexible graphite impregnated glass cloth, a carbon coated glass cloth, a wire-wound ceramic former, a wire mesh element, a heating cable, a resistance element embedded in powdered insulation in a metal sheath, or a unidirectional radiant heating panel. The heater may be cast in a mould, or by spraying a layer of a mixture of glass fibre and hydraulic cement on to a mould, placing the heating element on the layer and spraying the heating element with another layer of cement and glass fibre. It is possible to produce the heater in a filter press. Sand is preferably added to the cement. The heater may be incorporated in walls, ceilings, floors or may be used for under road heating or as a railway points heater.
Patent GB-1188044-A (GB)
Title: An Apparatus for Climbing Pole-Like Objects.
Inventor: LOEOECK WILLI
IPC: A63B27/00
Filed: 1968-11-13
Abstract: 1,188,044. Platform elevators; constant tension winches. W. LÍÍCK. 13 Nov., 1968, No. 53757/68. Headings B8B and B8H. An apparatus for climbing a pole-like object 5 comprises a wheeled carriage 3 and wheeled holding device 4 engaging opposite sides of the pole 5 and being tensioned towards each other to grip the pole, by cables 35, 36 coupling the carriage 3 and device 4 and being maintained in constant tension by a winding arrangement on the carriage. The carriage 3 having an operator's platform includes a pair of wheels 7 on each of two axles 8 spaced along the pole, both axles being drivingly connected together by a chain 12 and the lower axle being coupled by a chain 16 to a reversible transmission 20 driven from the output shaft 21 of a motor 22. The said winding mechanism comprises a drum 41 on to which both cables 35, 36 are wound, the drum being rotatably mounted on the motor output shaft 21 and driven therefrom through friction plates 43 and 44 on the shaft and drum. The pressure between the plates and hence the drum torque and cable tension are variable by adjusting the pressure of a spring 45 forcing the plates 43, 44 into engagement.
Patent GB-1536659-A (GB)
Title: Sealing rings
IPC: F16J15/32
Filed: 1975-12-15
Abstract: 1536659 Shaft seals PIONEER WESTON Ltd 15 Dec 1975 [14 Dec 1974] 54129/74 Heading F2B A lip-type shaft seal comprises a rigid annular member 12 supporting a sealing member 11 which has on its low pressure side 16 and spaced from the lip 13c a continuous barrier 17 formed of a multiplicity of upstanding elements 17a, 17b extending radially inwards of the seal and arranged in end to end disposition in the peripheral direction of the seal. The barrier 17 may be in the form of a single zig-zag formation as in Fig. 2 (not shown), a double zig-zag formation of constant peripheral "frequency" as in Fig. 1 or of varying peripheral "frequency" as in Fig. 7 (not shown). The function of the barrier 17 may be to return leakage fluid to the lip, in which case it lies adjacent to the lip as in Fig. 2 (not shown); alternatively it may serve to prevent ingress of contaminants, in which case it is spaced from the lip as in Fig. 3 (not shown). The double zig-zag formation, e.g. Fig. 1, provides both functions. Preferred angular and linear dimensions are given, some with reference to Fig. 6 (not shown). Reference is made to Specifications 1,260,125 and 1,382,281.
Patent GB-1498196-A (GB)
Title: Manual dial assembly
IPC: A63B71/06
Filed: 1974-12-16
Abstract: 1498196 Scoring dial C CECCHETTI 16 Dec 1974 [14 Jan 1974] 54223/74 Heading A6D [Also in Division G5] In a scoring dial assembly, finger access through a housing to a dial wheel rotatably supported on a shaft fixed to the housing allows for depression of the dial against spring pressure whereby stop means located adjacent the area of attachment of the shaft and housing is released to allow for manual rotation of the dial and successive segregation of one of a set of spaced indicia; removal of the finger being effective in re-engaging said stop means to prevent inadvertent further rotation of the dial. As shown, part of injection moulded game housing 2 incorporates a fixed fin projection 12 which co-operates with star shaped depression 13 (Fig. 4) in a rotatable score dial 4 to effect multi positional stop means under the action of compression spring 9. Finger engagement of an exposed numbered portion of score dial 4 through aperture 3 allows for depression of the dial against the spring thereby effecting disengagement of the fin and depression stop elements to allow for manual rotation of the dial to expose a new score number. Alternatively, stop means may comprise a plurality of pins co-operating with corresponding wells; and the stop elements may be reversed thereby providing for a projection element on the dial to be received into a depression element in the housing. Further, the indicia may be incorporated on the housing; the rotating dial then being provided with an indicator e.g. a pointer. The housing itself may be open in the area adjacent the top of the dial wheel.
Patent GB-1504480-A (GB)
Title: Process for removing organic material from wet process phosphoric acid
IPC: C01B25/237
Filed: 1976-12-31
Abstract: 1504480 Purifying phosphoric acid TOYO SODA MFG CO Ltd 31 Dec 1976 [13 Feb 1976] 54483/76 Heading CIA Organic impurities are removed from phosphoric acid which has been prepared by extracting crude wet process phosphoric acid with an organic solvent and back extracting with water, by treating the phosphoric acid with a chlorate at a temperature of at least 100 C. while maintaining the concentration of the phosphoric acid at a value higher than 90 wt. per cent as H 3 PO 4 , and reducing any residual chlorate. Hydrochloric acid may be added to the extracted phosphoric acid to reduce residual unreacted chlorate. Any residual chlorate remaining after the treatment with the chlorate (or chlorate and HCl) may be removed by treatment with a reducing agent (active carbon and/or hydrogen sulphide specified). Any chlorine present in the treated phosphoric acid may be removed by treatment with air. The mineral acid used in the wet process may be H 2 SO 4 , HC1 or HNO 3 . The crude wet process phosphoric acid may be pretreated for the removal of mineral acid and/or fluorine impurities prior to the extraction step. In Example 6 the crude wet process acid is pre-treated with active carbon. The phosphoric acid may be concentrated before and/or after the extraction step. Solvents suitable for the extraction step include alcohols (e.g. n-butanol, isobutanol, isoamyl alcohol), ketones (e.g. methylisobutyl ketone), ethers (e.g. isopropyl ether), phosphoric acid esters (e.g. tributyl phosphate) and amines. Comparative examples disclose the use of H 2 O 2 , KMnO 4 , NaOCI, NaClO 4  and HNO 3  as oxidizing agents instead of NaClO 3  (see reference Examples 4-7 and 13-17). Other alternative reagents are ClO 2 <SP>-</SP> and perchromate.
Patent GB-1494507-A (GB)
Title: Apparatus for the control of the width of a web
IPC: B29C48/92
Filed: 1974-12-18
Abstract: 1494507 Automatic control of web width INSTITUTE FOR INDUSTRIAL RESEARCH & STANDARDS 18 Dec 1974 [28 Dec 1973] 54689/77 Heading B5B [Also in Division G3] In a controlled web-handling process, the width of a web is sensed by an array of photoelectric cells connected to a logic circuit. A control device responds to the output of the logic circuit by adjusting a parameter of the process so as to eliminate sensed variations in the width of the web. As shown, a double thickness web 12 of polyethylene film is formed from a blown tube 10 produced by an extruder. The web is fed between roller pairs 16, 17 past two multi-channel photoheads 13, 14 arranged symmetrically across each edge of the web 12. A digital logic circuit 18 receives inputs from the twelve photocells 15 which make up the heads 13, 14, and if more than six of the photo-cells are covered by the web 12, a signal is supplied through a timer 19 to an amplifier 25 which energizes an exhaust valve 27 connected to the extruder so as to decrease the width of the web 12. The timer 19 continues to produce an output as long as an overwidth signal is received from the circuit 18, until a limit time is reached, when its output is inhibited for a further preset time by a timer 20, so as to allow time for web of reduced width to reach the photo-heads 13, 14. A similar correction procedure is carried out by timers 21, 22, amplifier 24 and air pressure valve 26 in response to signals from the circuit 18 indicating that fewer than six of the photo-cells 15 are covered by the web, in order to increase the web width. An alarm device 23 is energized by the circuit 18 if either of the innermost photocells 15b is uncovered or if either of the outermost photo-cells 15a is covered by the web. Corrections may alternatively be effected by adjusting the web speed.
Patent GB-1162736-A (GB)
Title: Electrical Drilling Device
Inventor: ALESSANDRI MAURIZIO
IPC: B23B45/00
Filed: 1967-12-04
Abstract: 1,162,736. Drilling machine details. M. ALESSANDRI. 4 Dec., 1967, No. 55039/67. Heading B3C. A drilling machine comprises a drill-head 10, whose shaft 24 is driven by a flexible cable 16 leading from an electric motor, the head being connected to a handle 14 by an arm 12, and a cutter bit 30 driven by a flexible shaft 28, guided in a curved sheath 34. In operation, two parts X, Y are drilled, Fig. 7G, and the shaft 28, and drill bit 30, are removed from the sheath. The sheath is either left in the hole in the parts, and locked by end terminals, or a wire is passed through the sheath, which is then removed, and the ends of the wire are knotted to secure parts X, Y. A plurality of holes may be drilled, and the wires knotted to form a seam. A plurality of sheaths of different lengths and curvature may be provided.