baber/WOPTO huggingface dataset:
Patent GB-1017004-A (GB)
Title: Electron discharge devices
IPC: H01J1/22
Filed: 1963-09-26
Abstract: 1,017,004. Coated wire. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 26, 1963 [Oct. 2, 1962], No. 37877/63. Heading B2B. [Also in Division H5] A heater for an indirectly heated cathode comprises wire 40, e.g. of tungsten, coated with a plurality of insulating layers 41-47 of aluminium oxide, the outer layer also containing 40% powdered tungsten, to produce a dark surface. The layers are applied by passing the wire an appropriate number of times through a slurry comprising powdered aluminium oxide, aluminium nitrate and deionized water, with methanol as a wetting agent. Each pass is followed by heating at 700-800 C. to drive off the water and nitrate, to produce a layer about 0.5 mils thick. The final layer, containing the tungsten, is applied by coating from a suspension agitated by bubbling a gas through it and following the normal heating the coating is sintered in a hydrogen furnace at 800-1100 C. It is stated that more than one tungsten containing layer may be used. Reference has been directed by the Comptrotter to Specification 922,440.
Patent GB-1043279-A (GB)
Title: An improved reinforcement spacer
IPC: E04C5/20
Filed: 1963-09-26
Abstract: 1,043,279. Reinforcement spacers. RAPID METAL DEVELOPMENTS (AUSTRALIA) PTY Ltd. Sept. 26, 1963, No. 37896/63. Headmg E1V. A reinforcement spacer is made from two inter-engaging portions 1, 7, the head portion 1 carrying the reinforcing rod 4 and having opposed sets of different diameter holes 2, 3 and 15-17, and being formed from a more distortable material than the four-legged base portion 7. The socketed lower part of the head portion 1 has a rim 8 which engages with a groove 9 on the spigoted upper part of the base portion 7.
Patent GB-346658-A (GB)
Title: Improvements in and relating to the purification of methanol and other alcohols of boiling point below 100 c.
IPC: C07C31/04
Filed: 1929-12-13
Abstract: Impure methanol and other alcohols of boiling point below 100 DEG  C. are purified by treatment with a halogen, in amount not less than that required to satisfy the unsaturated value of the alcohol, the alcohols then being distilled, treated with alkali to remove halogen acid and then fractionated.  Either the distilled but still uncondensed halogenated alcohol vapour is passed through hot alkali and the scrubbed vapour fractionally condensed, or the distillate from the halogenated product is condensed, alkali is added and the mixture fractionated.  In examples: (1) crude methanol is treated with chlorine, distilled, and the vapours passed through caustic soda solution and thence to the fractionating column; (2) crude methanol is treated with bromine, fractionated, the condensed product treated with alkali and again fractionated.
Patent GB-920506-A (GB)
Title: Improvements in processes and apparatus for carrying out chemical reactions between gases and liquids
IPC: B01F25/64
Filed: 1959-11-13
Abstract: A chemical reaction between a gas and a liquid is carried out in a centrifugal pump of low pressure performance.  The pump of conventional design has a throttle at the inlet of the reaction zone. The performance can also be influenced by the shape and inclination of the vanes, the walls of the casing or a throttle for the exhaust. The catalytic hydrogenative purification of castor oil, vitamin A-enriched fish oil, stearin and squalene with Raney nickel is described.  The production of potassium bicarbonate from caustic potash and carbon dioxide is exemplified.ALSO:A chemical reaction is carried out by passing a gas and a liquid through a centrifugal pump of low pressure performance.  Exemplified are the hydrogenation of unsaturated impurities in lauryl alcohol; the purification of vitamin A rich fish oil with hydrogen; preparation of p-aminosalicylic acid from aminophenol, caustic potash and CO2; preparation of aspartic acid from maleic acid and ammonia; the preparation of succinic acid from maleic acid and hydrogen in the presence of a catalyst; the preparation of heptylamine from enanthal, ethanol, hydrogen and ammonia: hydrogenation of dextrose to produce sorbitol; and the conversion of 2-methyl-2-pentenal to 2-methyl pentanal.
Patent GB-1528458-A (GB)
Title: Method of manufacturing an electrophotographic member
IPC: G03G5/14
Filed: 1975-09-23
Abstract: 1528458 Electro-photographic members XEROX CORP 23 Sept 1975 38921/75 Heading G2X An electro-photographic member is made by (i) extruding a conductive material to form a support having a corrugated surface pattern of parallel lands and valleys and (ii) completely coating the pattern with a photo-conductive material to produce a member with a photo-conductive surface of lands and valleys. The valleys are preferably made conductive either by removal of photoconductive layer therefrom by cutting or by coating the valleys with conductive material. The member is preferably used in the process of Specification 1411237 where the valleys are filled with liquid developer, the member is uniformly charged and imagewise exposed and the latent electrostatic image on the lands is developed by the attraction of the developer from the valleys by the latent image. The member may be in the form of a cylinder or a flexible belt. Members which have flat conductive supports with photoconductive layers of parallel lands and valleys formed thereon by extrusion are disclosed in Specification.
Patent GB-1020011-A (GB)
Title: Treatment of electrophotographic prints
IPC: G03G5/00
Filed: 1962-10-16
Abstract: 1,020,011. Electrophotography. EASTMAN KODAK CO. Oct. 16, 1962 [Oct.18, 1961], No. 39209/62. Heading G2H. To improve the contrast in an electrophotographic print including as the image-bearing layer a photoconductive material dispersed in a hydrophobic insulating polymeric binder and sensitized with a coloured dye, the dye-bearing layer is bathed or swabbed with one or more organic solvents, at least one being a solvent for the binder, for a time sufficient to discharge the colour of the dye from the layer but insufficient to remove the binder, and thereafter drying the layer. Reference is made to rendering the dye colourless, desorbing the dye, or to a combination of these treatments, but as described the treatment always effects desorbtions optionally with decolorization as by including in the solvent or solvent mixture an organic acid or a compound such as 1: 3-dichloro- 5 : 5-dimethylhydantoin. The materials employed comprise conductive supports bearing ZnO-inresin layers sensitized with one of more of triphenylmethane or merocyanine dyes. Auramine B or Rhodamine B, and prints are made either by powder developing an electrostatic latent image or by electrolytically developing a latent conductivity image to provide a deposit comprising silver and a mixed manganese-iron hydroxide or hydrated oxide as in Specification 1, 006, 114
Patent GB-1214240-A (GB)
Title: Improvements in or relating to spark plugs
IPC: H01T13/39
Filed: 1969-08-06
Abstract: 1,214,240. Spark plugs. CHAMPION SPARK PLUG CO. Aug.6, 1969 [Sept.3, 1968], No.39308/69. Heading F1B. A spark plug has a central electrode comprising a metallic sheath 20 encompassing a heat conductive metal core 26 mounted adjacent the lower end of the insulator 11, the metallic sheath having a tubular side wall and an integral bottom wall 27 and a corrosion resistant metal firing tip 28. The firing tip has a fine wire shank portion and a headed end 29 and the headed end of the tip is attached to the bottom wall of the metallic sheath.
Patent GB-1081715-A (GB)
Title: Adjustable boom angle warning device
IPC: G08B21/18
Filed: 1964-09-28
Abstract: 1,081,715. Jib angle indicators for cranes. MARK VISCEGLIA Inc. Sept. 28, 1964 [Sept. 30, 1963], No. 39384/64. Heading B8B. Two mercury switches 35, Fig. 6, are pivotally mounted on the boom of a crane and are preset by rotating them about spindles 38 so that the contacts of one of them are closed when the jib is lowered to a predetermined angle with respect to the horizontal and the contacts of the other are closed when the jib is raised to a predetermined angle with respect to the vertical. This operates a warning light and buzzer in the operator's cab. A test switch in the cab enables the operation of the warning devices to be checked. The spindles 38 have knobs 48, Fig. 2, mounted on them and the latter have pointers which move over 90 degrees scales to indicate the angles of the boom at which the warning devices are set to operate. The switches Fig. 18, have semicircular contacts 94, 96 so that rotation of the switches about their longitudinal axes does not render them inoperative. The device may be adapted in a simple manner for mounting on either the right-hand or lefthand side of the boom depending on which side of the boom the operator's cab is located.
Patent GB-895196-A (GB)
Title: Apparatus for shaping tires
IPC: B29D30/36
Filed: 1960-11-17
Abstract: 895,196. Shaping tyre carcases. GOODYEAR TIRE & RUBBER CO. Nov. 17, 1960 [March 16, 1960], No. 39483/60. Class 144 (1). A flat band tyre carcase 15 is shaped by supporting the beads 21 of the carcase on the peripheries 18 of a pair of spaced co-axial discs 13, 14 which each carry an inflatable annulus 24 having an expansible wall 25 to engage, on inflation, the associated tyre bead toe 23 and seal the bead to the disc, the chamber 40 defined by the carcase 15 and the discs 13, 14 then being inflated through a passage 43 in disc 13, and the discs 13, 14 being moved together to effect shaping of the carcase to tyre form. Where necessary, any inextensible tread reinforcement, together with the tread, may be built on to the shaped carcase before its removal for curing. As shown, the discs 13 and 14 are supported on a pair of sleeves 11, 12 slidable along a rotary shaft 10 by means of a manually-rotatable screw 47 journalled in the shaft and engaging oppositely screw-threaded nuts 49 respectively pinned to the sleeves 11, 12. Each annulus 24 is circumferentially split with its edges spaced by a ring 28 and clamped to the associated disc radially inwardly of its periphery 18 by a further ring 29. The periphery of the ring 29 serves to support the uninflated annulus 24 and is arcuate in shape to guide the annulus on inflation so that it bulges around the bead toe 23 to effect the desired seal and to force the bead positively on to its seat 18. Each annulus 24 may be fabric reinforced to provide a desired uniform and limited stretchability.
Patent GB-1108057-A (GB)
Title: Pastes for ball-point pens
IPC: C09B47/32
Filed: 1965-09-16
Abstract: Ball-point pen pastes which may contain a phenol-modified cyclohexanone or methylcyclohexanone resin are characterized by a phthalocyanine dyestuff:-  <FORM:1108057/C3/1> wherein R1, R2 and R3 represent the same o different lower alkyl or hydroxyalkyl groups, X- is a hydroxyl ion or the anion of an inorganic or organic acid, particularly acetate, Pc is a phthalocyanine radical and n is 2-4. The dyestuff, with or without an auxiliary acid or basic dyestuff, may be dissolved in benzyl alcohol and/or at least one higher glycol selected from diethylene glycol, phenyl glycol (C6H5-CHOHCH2OH), propylene glycol, butyl diglycol (n-C4H9OCH2CH2OCH2CH2OH) or hexane triol, and mixed with the synthetic resin. The blue inks of Examples 1, 3, 4 and 5 based on a phenol-modified cyclohexanone resin and of Example 2 containing phthalic acid hexane triol ester also contain a triphenylmethane base or acetate thereof, or a dicyclohexylamine salt of an acid monoazo pyrazolone dyestuff, and, in Examples 1, 4 and 5, olein.ALSO:Ball-point pen pastes contain a phthalocyanine dyestuff of the general formula <FORM:1108057/C4-C5/1> wherein R1, R2 and R3 represent the same o different lower alkyl or hydroxyalkyl groups, X(-) is a hydroxyl anion or the anion of an inorganic or organic acid, Pc is a phthalocyanine radical, and n is 2-4.  The dyestuff with or without an auxiliary acid or basic dyestuff, may be dissolved in benzyl alcohol and/or at least one higher glycol selected from diethylene glycol, phenyl glycol, i.e. 1-phenyl-1,2-dihydroxy ethane (C6H5CHOHCH2OH), propylene glycol, butyl diglycol, i.e. diethylene glycol monobutyl ether (n-C4H9OCH2CH2OCH2CH2OH) or hexane triol, and a synthetic resin soluble therein added to the solution.  Specified resins are phenol-modified cyclohexanones or methylcyclohexanones. The blue ink of Example 2 consists of a phthalocyanine dyestuff, the acetate of a triphenylmethane base, phenyl glycol, 1,2-propylene glycol, butyl diglycol, hexane triol, and phthalic acid hexane triol ester.
Patent GB-1170550-A (GB)
Title: Method and Apparatus for Locating Ruptured Fuel Elements in a Nuclear Reactor
IPC: G21C17/04
Filed: 1967-08-31
Abstract: 1,170,550. Reactors. ATOMIC ENERGY OF CANADA Ltd. 31 Aug., 1967 [13 Oct., 1966], No. 39829/67 Heading G6C. In an apparatus for locating ruptured fuel elements in a nuclear reactor, a fracture 22a in a fuel element 22 releases fission products which disperse in the coolant flowing through channel 11 in which the rupture is located. The fission products, Mo 99 and Te 132, are deposited in the traps 40 as a result of flow 36. By comparing the gamma radiation from each deposition trap 40 with the average of all the traps, the position of the ruptured element is detected. The isotopes Mo 99 and Te 132 have long half-lines and slow scanning of the traps is permitted even during reactor shut-down.
Patent GB-966070-A (GB)
Title: Extrusion die for tubular films
IPC: B29C48/10
Filed: 1962-10-22
Abstract: 966,070. Extrusion dies for tubular films. E. I. DU PONT DE NEMOURS & CO. Oct. 22, 1962 [Oct. 23, 1961], No. 39851/62. Heading B5B. A circular die for tubular extrusion of plastic material comprises a relatively rigid annular die body 1, a mandrel 2 coaxial with the die body and fixedly spaced therefrom to provide between the inner boundary of the body and the periphery of the mandrel a coaxial annular passageway 4 for plastic material in communication with a feed port 5, a rigid mandrel extension 7 secured coaxially to the mandrel, the curved surface of the mandrel extension defining an inner lip of an annular die orifice in register with the passageway, the lip having a land section 9 in a plane which is at an angle within the range of from 15 degrees to 45 degrees (especially 20 degrees to 35 degrees) with respect to the axis of the die, an annular outer lip member having a rigid annular plate 10 secured to and concentric with said die body and said mandrel extension, and a concentric flexible annular plate 12 substantially parallel to, and spaced from, said rigid plate and integrally joined at one edge to the rigid plate through a relatively thin fulcrum section 13, the flexible plate having a land section 14 substantially spaced from said fulcrum section, land section 14 being proximately opposed to the inner lip land section 9 and in a plane substantially parallel to the plane of the inner lip land section, the land sections 9 and 10 together defining said annular die orifice, said flexible plate being engaged through a plurality of individually adjustable means operative to effect positive advance and retraction of pre-selected discrete portions of said flexible plate relative to the opposed face of said rigid plate. As shown, the adjustable means comprise a plurality of spaced bolts 15 mounted on said rigid plate at spaced intervals in a path adjacent the outer periphery of the rigid plate, and extending through holes in the flexible plate in register with the bolts, and lock nuts 16, 17 on the bolts and in engagement with the flexible plate to flex discrete areas of the flexible plate with respect to the rigid plate. By means of the bolts, local adjustments in the width of the orifice are thus effected, enhancing the uniformity in thickness of film so made. Examples describe the manufacture of polyethylene and polypropylene films. Specifications 471,590 and 858,616 are referred to.
Patent GB-1372693-A (GB)
Title: Device for detecting an abnormal pressure in one of a plurality  of pressurised systems
IPC: G01L13/02
Filed: 1971-11-19
Abstract: 1372693 Pressure indicating devices for pneumatic tyres A MIRSKY 19 Nbv 1971 [19 Aug 1970] 39950/70 Heading B7C [Also in Division G1] In a device for detecting an abnormal pressure in one of a plurality of measurement systems the fluid pressure, such as air in a multiple tyre vehicle, passes from one source through one set of connections 11, 12 and a bellows 13 and from another source through another set of connections 11, 12 and a bellows and any difference in the two pressures in the two bellows 13 displaces a brass strip 14 separating the bellows 13, to move an electrical contact 15 between indicator contacts 19 adjustably mounted on a bridge piece 18.
Patent GB-1370730-A (GB)
Title: Ball bearing asemblies
IPC: F16C29/06
Filed: 1972-08-30
Abstract: 1370730 Bearings HEIM UNIVERSAL CORP 30 Aug 1972 [18 Oct 1971] 40194/72 Heading F2A A recirculating ball bearing assembly for mounting a shaft 38 for rectilinear motion comprises concentric inner and outer sleeves 14, 12, the inner sleeve 14 having a number of tracks 32, 36, 34 for the recirculating balls, and having a polyhedral outer surface, and the inner surface of the outer sleeve 12 having a number of grooves 20 with which the intersections of the plane portions 30 defining the outer surface of the inner sleeve 14 register. The bearing portions of the tracks consist of slots 34 located in the centres of the plane portions 30, whereas the return portions consist of grooves 32 coinciding with the said intersections. The sleeves are held together by rings 16 engaging grooves 28 in the outer sleeve; alternatively, the inner sleeve may be provided with integral flanges. The sleeves may be of metal or plastics.
Patent GB-1194008-A (GB)
Title: Improvements in or relating to Magnetic Shift Arrangements for Electron Beams
IPC: H01J29/70
Filed: 1967-09-05
Abstract: 1,194,008. Colour television tubes. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 5 Sept., 1967 [13 Sept., 1966], No. 40417/67. Heading H1D. A magnetic shift arrangement for shifting the beam of a cathode-ray tube e.g. the " blue " beam of a colour T.V. receiver, comprises a cylindrical magnet 1 magnetized along a diameter and disposed between two semi-cylindrical shells 3 and 4 of magnetic material, the shell 3 being provided with a projection 5 carrying a polepiece 6 and the shell 4 being provided with projections 7 and 8 carrying polepieces 9 and 10 so that the magnitude and direction of the magnetic field between the polepieces may be varied by rotating the magnet 1. The polepieces are shaped to follow the curvature of the neck of a cathode-ray tube, and the polepieces 9 and 10 may be riveted to a ring (13, Fig. 3, not shown) of non-magnetic material adapted to encircle the neck of the tube. A coil (15) may be wound round the projection 5 and supplied with parabolic and/or sawtooth currents to provide dynamic convergence.
Patent GB-1421286-A (GB)
Title: Process for purifying a turpentine fraction
IPC: C09F1/02
Filed: 1973-08-29
Abstract: 1421286 Purifying turpentine SCM CORP 29 Aug 1973 40710/73 Heading C5C A turpentine hydrocarbon fraction containing not more than 500 p.p.m. sulphur and having not more than 15 wt. per cent of light ends having a boiling point below α-pinene is desulphurized by contacting with activated carbon in a first stage until the carbon is laden to a predetermined level with sulphur compounds, then regenerating the sulphur-laden carbon in a second stage by first heating it at a sufficient temperature and for a sufficient time to remove sorbed turpentine which is recycled to the first stage without substantially increasing the sulphur content of the turpentine hydrocarbon function, and then heating the carbon at a temperature higher than the first regeneration step to remove the sulphur compounds. The regeneration steps are carried out by injection of steam at differing temperatures.
Patent GB-980333-A (GB)
Title: Improvements in or relating to vibration reducing devices
IPC: F16D3/19
Filed: 1961-11-16
Abstract: 980,333. Vibration dampers. WILLIAM, DOXFORD & SONS (ENGINEERS) Ltd., J. F. BUTLER, and F. ORBECK. Nov. 13, 1962 [Nov. 16, 1961], No. 41055/61. Heading F2S. A vibration damper for a rotatable shaft 10 comprises a floating mass member 21, 22 rotatable about the shaft and a shaft member 14, which mass member and shaft member are connected by a resilient drive including at least one axially extending leaf spring 27. One face of the leaf spring co-operates with two abutments of one member, the opposite face cooperating with an abutment of the other member between the two aforementioned abutments. Relative rotation of the members in one sense effects flexing of the leaf, the faces of the two abutments in contact with the spring are convexly curved towards one another so that as the spring is flexed the points of engagement of the spring with these abutments move axially towards the third abutment. In the construction shown the abutments are formed as teeth about the circumference of three discs 16, 25, the two discs 25 being attached as by shrinking to the floating member and the other to the shaft member. When the teeth are of the same width as the spaces between the leaf springs then the leaf springs alternate with the teeth (Fig. 5, not shown) but when the teeth are of greater width alternate teeth are omitted and the leaf springs are initially preloaded (Fig. 6, not shown). The cavity 39 between the shaft member 14 and the floating member 21, 22 is filled with hydraulic fluid, spring loaded, bored piston members 33 acting in cylindrical cavities as absorbers of axially directed vibrations. The leaf springs may comprise a plurality of laminations.
Patent GB-1074915-A (GB)
Title: Thresher drum drive systems
Inventor: OLIVA KLAUS
IPC: A01F12/56
Filed: 1965-09-28
Abstract: 1,074,915. Combine harvesters. KOMBINAT FORTSCHRITT LANDMASCHINEN VEB. Sept. 28, 1965, No. 41265/65. Heading A1F. A variable speed drive for driving a thresher drum of a combine harvester comprises a variable diameter pulley (not shown) driving through a belt 18 a variable diameter pulley 19 having flanges urged together by a spring. As shown the pulley 19 is rotatable relative to a shaft 35 coupled to the thresher drum shaft 9, and drives the thresher drum through gear train 40, 41, 43 and 45 at a speed within a low ratio range. The gear 45 is slidable on a splined portion of the shaft 35, and when the gear train is interrupted by actuation of lever 49 lugs 47 on the gear will engage lugs 46 on the gear 40, which is integral with the pulley shaft 20, to drive the thresher drum at a speed within a higher ratio range. The shaft 35 may alternatively be a continuation of the shaft 9. In another embodiment (Figs. 1-4, not shown) the thresher drum is driven in the low ratio range by a belt and pulley system, and the variable diameter pulley may be mounted on a shaft which is releasably connected to the drum shaft, or alternatively may be mounted directly on the thresher drum shaft.