baber/WOPTO huggingface dataset:
Patent GB-1473801-A (GB)
Title: Well screen
IPC: E21B43/04
Filed: 1975-04-01
Abstract: 1473801 Well screen EXXON PRODUCTION RESEARCH CO 1 April 1975 [3 July 1974] 13326/75 Heading BID [Also in Divisions El and E2] A well screen 10 is provided with a protective coating 27, 28 of a material of low melting point to improve its shelf life and to temporarily seal the screen openings to prevent foreign material from plugging or entering the screen during transit, storage and handling. The material is chosen such that its melting point is lower than the ambient temperature at the setting depth of the screen. The preferred material is petroleum wax, but lowmelting-point alloys, e.g. bismuth alloys, or thermoplastic resins may alternatively be used. Solvents may be employed to aid in the removal of the material after setting. The material may have a corrosion inhibitor dispersed therein. The screen may take the form of a slotted tube (22), Fig. 2 (not shown), provided with a wrapping (24) of fine mesh wire.
Patent GB-679225-A (GB)
Title: Improvements in or relating to striking surfaces for safety matches, and materials therefor
IPC: C06F3/08
Filed: 1950-05-26
Abstract: 679,225. Striking surfaces. LEDAAL, T. B. May 26, 1950 [April 3, 1950], No. 13357/50. Class 50. Striking surfaces for matches are made resistant to water otherwise than by adding cement lacquers &c., by mixing substances which are insoluble in water with a binding agent comprising an emulsion of a plastic in water. A suitable mixture consists of red phosphorus and an equal dry weight emulsion of polyvinyl acetate, or copolymers of polyvinyl acetate and polyvinyl chloride. A filler, e.g. material such as powdered glass may be added, brownstone, insoluble in water, and a friction material such as powdered glass may be added.
Patent GB-133874-A (GB)
IPC: A47G1/06
Abstract: 133,874. Kaslam, T. H. Jan. 29, 1919. Picture and like frames.-A frame 1 for displaying post-cards, pictures, advertisements, &c. on both sides is provided with grooves 2 into which the pictures &c. are slid through a slot 3. The frame may be built up of layers of cardboard or of two bent U-shaped sheet-metal pieces. A pair of supporting legs 11 may be pivoted to the sides of the frame.
Patent GB-678718-A (GB)
Title: Improvements in or relating to ceramic electrical devices and the manufacture thereof
IPC: C04B33/02
Filed: 1949-05-19
Abstract: 678,718. Insulators; resistance coatings; condensers. CLARK, C. H. W., and STEATITE & PORCELAIN PRODUCTS, Ltd. Aug. 4, 1950 [May 19, 1949], No. 13425/49. Drawings to Specification. Classes 36 and 37. [Also in Group XXIII] A ceramic electrical device such as a H.T. insulator, capacitor, or resistor, is provided on at least part of its surface with a conducting or semi-conducting coating the effective conducting constituent of which comprises blue titania. Blue titania is formed by firing titania under reducing conditions or in the presence of certain oxides, but reverts to the non-conducting form due to oxidation during normal cooling. The TiO 2  is therefore applied in a slip and the base then coated with a glazing composition which matures to a substantially impermeable state above that at which the TiO 2  assumes its conducting form, and the double coating fired so that the TiO 2  becomes conducting and is prevented from re-oxidation by the cover glaze. Alternatively a coating of slip comprising TiO 2  and fluxing ingredients is applied and fired, when the TiO 2  is converted and protected by the matured coating. The conductivity may be controlled by the addition to the slip of up to 10 per cent of the TiO 2  content of one or more of the oxides of Be, Cr, Ca, Co, Ni, Mn, Mo, W, V or substances such as magnesium thorate or zirconate which can inhibit or promote the conversion of the TiO 2 . Other substances such as diluents, e.g. clay, MgO, Al 2 O 3 , CeO 2 , SiO 2 , or alkaline earth oxides in amounts up to 20 parts diluent to one part TiO 2  may also be added to control the conductivity. The diluent is normally chosen to give a coefficient of expansion similar to that of the ceramic base, e.g. by adding steatite to form a 93/7 porcelain/steatite mix of percentage composition, clay 35, SiO 2  36, Feldspar 23, soapstone 6. The firing conditions must be carefully controlled, but even so the control of the conductivity is not a close control, however unsuitable coatings may be subjected to reducing and oxidizing treatment at a temperature sufficient to render the glaze permeable. To join a conductor to the coating the overlying glaze is removed locally by sand-blasting &c. The temperature coefficient of the glaze is comparatively low. Tables and graphs are given showing the resistivities of various coatings.
Patent GB-1010860-A (GB)
Title: Hydrocarbon homopolymers
IPC: C08G61/08
Filed: 1964-04-01
Abstract: High molecular weight stereoregular polymers containing the repeating unit (-CH2-CH2-CH=CH-CH2-) are made by a process which comprises polymerizing cyclopentene in the presence of a catalyst obtained by mixing a transition metal salt of Groups IVb or VIb of the Periodic Table according to Mendel<\>aeeff with a metallorganic compound or metal hydride of Groups Ia, II or III.  In the examples polymers with the cis configuration are formed with aluminium compounds and either molybdenum or molybdenyl pentachloride or with tungsten hexachloride and beryllium diethyl.  Otherwise systems composed of an organo-aluminium compound and one of molybdenum dichloride triphenoxide, molybdenum pentafluoride monochloride, tungsten hexachloride, zirconium tetrachloride or titanium tetrachloride produce the trans form. In Examples (12) and (13), a catalyst system comprising aluminium triethyl and either titanium tetrachloride or a mixture of alumi nium trichloride and titanium trichloride produces a mixture of polyethylene and polycyclopentene. A catalyst of tungsten hexafluoride and lithium n-butyl gives a mixture of cis and trans forms.  The polymers are sulphur vulcanizable. Specification 995,186 is referred to.
Patent GB-134630-A (GB)
IPC: E04C3/40
Abstract: 134,630. Guest, W., and Lenox, H. Nov. 11, 1918. Columns; girders; roofs.-Iron and steelwork structures consist of one or two sets of bars, the bars in each set being of equal length. The bars a are of channel section with flat ends, the flanges of the bar extending some way along the flat ends into which they merge. In another form, the bars f, Fig. 6, are of angle section being bent along their central lines and having flat ends g which may be offset if desired. The bars are provided with bolt holes h. Fig. 4 shows a girder built up of two sets of bars, the shorter bars being bolted to the junctions of the longer bars. Columns, roofs, &c. may be constructed of these bars.
Patent GB-540873-A (GB)
Title: Improvements relating to loom pickers
IPC: C14C9/02
Filed: 1940-08-26
Abstract: 540,873. Loom pickers. SANDHOLME IRON CO., Ltd., and LORD, W. M. Aug. 26, 1940, No. 13476. [Class 142 (iii)] A finished loom picker or the hide therefor is impregnated with sulphated sperm oil, a sulphated higher fatty alcohol, e.g. sulphated oleyl alcohol, or a mixture of such alcohols having a melting temperature not exceeding 45‹C. The impregnation is preferably carried out after deliming in a bath of weak acid, neutralisation, and removal of excess water by drying or rolling.
Patent GB-321691-A (GB)
Title: Improvements in and relating to the manufacture of new saponaceous materials from organic isocolloids containing unsaturated high molecular acids
IPC: C11D13/02
Filed: 1928-05-08
Abstract: 321,691. Auer, L. May 8, 1928. Fatty oils, sulphuretted soaps, processes for making.-Fats and fatty acids are treated at elevated temperature and under reduced or atmospheric pressure, and in the absence of water, with alkali metals, their oxides or hydroxides, with or without an alkaline earth peroxide to yield saponaceous compounds to be used as such or in the form of an aqueous emulsion in the manufacture of soap, varnish, linoleum, or, after vulcanization, as a substitute for rubber. The reaction mass may be treated with radiations, e.g. X-rays, or with gases, e.g. nitrogen, carbon dioxide, oxygen, and may be vulcanized by alternate treatment with sulphur dioxide and sulphuretted hydrogen, or by a separate vulcanization treatment with or without accelerators, e.g. triphenyl guanidine, or activators, e.g. zinc oxide. The dissolution of the alkali or alkali metal may be promoted by addition of such metal-free organic materials as for example phenols, arylamines, hydrocarbons, ketones, or alcohols. Fillers and pigments may be added. In examples, linseed. fish, castor, rape, olive, or sunflower oil is heated in vacuo or at atmospheric pressure with sodium oxide, lithium hydroxide, sodium or potassium hydroxide, or metallic potassium, with added barium peroxide or p-cresol. The product on cooling is heated with sulphur, zinc oxide and triphenylguanidine. Specification 321,722 is referred to.
Patent GB-1357301-A (GB)
Title: Aryl formamidines processes for their preparation and herbicidal preparations containing them
IPC: C07D295/12
Filed: 1972-03-23
Abstract: 1357301 Herbicidal application of argl formamidines FARBWERKE HOECHST AG 23 March 1972 [23 March 1971] 13597/72 Heading A5E [Also in Division C2] Preparations for selectively controlling undesired plant growth comprise a compound of formula I in which R represents a C 1  to C 3  alkyl or C 2  alkenyl group which is substituted by F and/or Cl and contains at least one hydrogen atom; R 1  represents H, Cl, CH 3 , OCH 3 , or CF 3 ; R 2  and R 3  each represents a C 1-3  alkyl group or together represent a C 1 -C 6  alkylene or oxalkylene radical and X is oxygen or sulphur, or an inorganic acid addition salt thereof, together with a carrier and/or herbicide and/or soil insecticide. Many known herbicides are listed which can be used in combination with the compounds of the invention.
Patent GB-919115-A (GB)
Title: Improvements in or relating to helical gearing
Inventor: STUDER ROBERT MARTIN
IPC: F16H55/08
Filed: 1960-04-19
Abstract: 919,115. Toothed gearing. BRISTOL SIDDELEY ENGINES Ltd. April 17, 1961 [April 19, 1960], No. 13598/60. Class 80 (1). A pair of meshing helical gears having different helix angles, one gear having teeth of arcuate convex cross-section 3 and the other gear having teeth of arcuate concave crosssection 4, has the centres of curvature 6 of the teeth profiles when in mating engagement lying to one side of the line joining the axes of rotation 01, 02 of the two gears. The radii of curvature of the teeth profiles may be the same or may differ, and the teeth profiles may be circular or ellipitcal. The teeth form alloys the distance between the gear axes 01, 02 to be varied slightly, Fig. 3 (not shown). Fig. 1 (also not shown) illustrates a known type of similar gearing in which the centres of curvature of the teeth profiles when in meshing engagement lie on the line joining the gear axes.
Patent GB-131167-A (GB)
Title: Improvements in Rope Grips.
Inventor: HOYLE JOHN KELVIN
IPC: B61B12/12
Filed: 1918-08-22
Abstract: 131,167. Hoyle, J. K. Aug. 22, 1918. Rope grips.-A rope grip for use in overhead ropeway transporters comprises a spring clip a and a plate b which is mounted between the wings of the clip and is forced against the rope by a screw d. Slipping of the grip along the rope is prevented by the engagement of a tooth c on the plate b with one of the grooves in the rope. The grip is mounted between brackets e, f which also support the hanger pin g for the load.
Patent GB-1253877-A (GB)
Title: Means for pulling strip sheet material
Inventor: LLOYD WILLIAM ARTHUR
IPC: B65H16/10
Filed: 1969-03-14
Abstract: 1,253,877. Feeding webs. VARIAN ASSOCIATES. 14 March, 1969 [14 March, 1968], No. 13673/69. Heading B8R. [Also in Divisions F2 and G1] A drive roller 9 for use in a web transport apparatus comprises separately rotatable drive segments 35, 36 disposed at opposite ends of the roller, a plurality of idler segments 46 being located between the two segments 35, 36 which are driven by a motor (not shown) through the intermediary of a drive pulley 26, a drive shaft 33 and a differential gear train 37 which is located in the hollow interior of the roller. With this arrangement one drive segment can rotate faster than the other, and the Specification explains how this enables the pulling forces on the web 8 to be equalized so that the web is transported evenly, without slewing. The roller 9, which may be the drive roller for chart paper in an electrographic recorder, is provided with a resilient outer surface 47, e.g. of a synthetic elastomer such as neoprene, and co-operates with idler rollers 29 at the marginal edges of the web 8. In a modification, the differential gear train 37 is disposed externally of the roller 9 (Fig. 3, not shown).
Patent GB-129018-A (GB)
Title: Improvements in or relating to Submarine Mines and the like.
Inventor: WILLIAMS HUGH JONES
IPC: F42B22/16
Filed: 1917-09-24
Abstract: 129,018. Williams, H. J. Sept. 24, 1917. Mines, marine.-Relates to moored mines of the kind maintained at a given depth by means of a winding-drum for the mooring-cable controlled through a clutch by a hydrostatic device, the motive force being derived from a propeller driven by the flow of water past the mine. According to the invention, a reversing-clutch is used in conjunction with a worm gear, so that the drum can be driven in either direction, according to the position of the clutch, and cannot move when the clutch is in the neutral position, the worm gear being irreversible. In the form shown in Fig. 1, the drum 14 for the mooring-cable 20 is connected by spur gearing 25, 9 to the worm gear 13, 12, which is connected by a bevel-wheel 6 to a pair of bevel-wheels 4, 5 loose on the shaft of the propeller 1. A clutch rotates with the propeller shaft, but is slidable between the bevel-wheels 4, 5 under the control of a float 17, which rises and falls with the level 16 of the water in the diving- bell 15 according to the depth of submersion of the mine. The controlling-gear shown in Fig. 3 comprises a disk 21 linked to the clutch 2 and normally held in the central position by a spring catch 24. When the mine sinks too low or rises too high, a lever 22 carrying the float 17 swings to one side, compressing a spring plunger 31 or 32 on the disk 21 and finally pushing the spring catch 24 away from the disk. The disk is then turned by the compressed spring plunger; this puts the clutch in action with one of the bevel-wheels 4, 5, and another catch 26 or 27 stops and holds the disk until the lever is swung back. The spring catches may be omitted. Rudders may be provided on the mine to keep the propeller in the desired position and direction relatively to the water current past the mine. In a modification, the mechanism is enclosed in a water-tight casing filled with oil, and the float device is replaced by a pair of bellows connected by a rod, one bellows being subjected to the pressure of air confined in a small chamber, and the other bellows being subjected to the external water pressure.
Patent GB-122209-A (GB)
Title: Improvements in or relating to Range-finders for use on Moving Targets.
Inventor: BARNES EDWID
IPC: G01C3/00
Filed: 1917-09-24
Abstract: 122,209. Barnes, E., and Chase, L. H. Sept. 24, 1917. Speed indicators operating by sighting aerial and marine objects; periodiccounter speed indicators.- Relates to apparatus, which may form part of a rangefinder, for determining corrections to be applied to gun-sights for the velocity of the target. In the form shown in Figs. 1 and 2, for coast-battery work, a rotating disk A with sights A<2> kept alined on the target is provided with a scale J<2> indicating the angular velocity of the target, time or range ares J<1> and lines J<3> indicating the angular displacement of the target for different ranges or times of flight of the projectile. The disk carries the pivot D<1> of a lever D in contact with pins E, E<1> on an arm C carrying an electro-magnet C<1>, the poles of which move over an armature C<2>. When the electro-magnet is energized for a predetermined period, the arm C is locked in position, and the lever D through multiplying connexions moves a pointer H relaytively to the scales. In the form shown in Figs. 5 and 6 for anti-aircraft work, an arm K mounted to swing about two axes at right angles is moved by connexions with a sighting telescope P over a chart L. The chart is' provided with height lines Q, time arcs Q<1>, and lines Q<2> representing modified tangent elevations. The faces K<3>, K<4> of the arm are provided with time arcs R and lines R<1> indicating angular displacements of the target and with pointers 0, h, which may be moved by means similar to those in the first form when the electro-magnets on arms C are energized. The position of the target is given on the chart L by the intersection of the arm K with a reference line, which may be produced by means described in Specifications 122,200 and 122,202, [both in Class 97 (i)..Optical systems &c.], or with the known height.
Patent GB-1500863-A (GB)
Title: Contact spring assembly for an electromagnetic relay
IPC: H01H50/56
Filed: 1976-04-05
Abstract: 1500863 Electromagnetic relays I S CHERNY and M V MISCHENKO 5 April 1976 [7 April 1975] 13745/76 Heading H1N In a relay contact spring assembly comprising a plurality of thermoplastics insulating plates 5, 6, and contact springs 3 clamped between two metallic end-plates 1, 2, the contact springs being insulated from each other by the insulating plates, each insulating plate surface adjacent a contact spring is provided with at least two longitudinal projections 6, 13 of a height less than half the thickness of that contact spring so that during assembly the contact spring is depressed into the projections and into contact with that plate surface and thus firmly held in position. The contact spring assembly is held together by a tubular bush 12 passing through holes 8, 9, 10 and 11 in the end plates and insulating plates.
Patent GB-141543-A (GB)
Title: Improvements in and relating to vessel raising float
IPC: B63C7/12
Filed: 1919-05-30
Abstract: 141,543. Tognacci, N. May 30, 1919. Sunken ships, raising.- Floats for raising sunken ships are provided at the lower end with a head 15 to which chains 20 and a hose 26 for the inlet of air are attached, and at the upper end with a valve casing 16 to which a hose 24 for the outlet of water and an internal tube 28 are fixed. The hoses are attached to a combined water pump and air-compressor.
Patent GB-1507196-A (GB)
Title: Electric hair trimmer
IPC: B26B19/06
Filed: 1975-04-04
Abstract: 1507196 Hair trimming devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 April 1975 [8 April 1974] 13908/75 Heading B4B An electric hair trimmer comprises a stationary cutter 5 over which is reciprocated a trimming cutter 6, a flap 11 movable between closed and open positions and associated with a spring means 9, 10 such that in the closed position of the flap, the spring urges the two cutters together, the flap being locked in the closed position by a spring-loaded locking device 13, 14, 15. The flap 11 is pivotally mounted on a square-section shaft 24 which is acted upon at its ends by springs 13, such that in the closed position, catches 14 are held in locking engagement with detents 15. The spring means includes four leaf springs 9 provided on a single component 10. In the embodiment shown, Fig. 5 and 7, a pair of torsion springs 38 are used instead of the leaf springs, one end 47 of each spring acting against a drive member 49 which is provided with a lug 50 adapted to engage in a slot 51 in the movable cutter 35 when the flap 39 is closed. The flap is locked in the closed position by means of resilient wires 41 engaging in slots 43 formed in the flap. A pair of guard members 55 are mounted on slides 57 and can be moved by a button (56), Fig. 4 (not shown) between retracted and extended positions.
Patent GB-998122-A (GB)
Title: Improvements in or relating to hollow floats for float-operated valves
Inventor: MARTIN EDWARD RANKINE
IPC: F16K33/00
Filed: 1962-04-11
Abstract: 998,122. Moulding carburetter floats. FRASER & GLASS Ltd. April 5, 1963 [April 11, 1962], No. 13941/62. Heading B5A. [Also in Divisions F1 and F2] A hollow float 12, e.g. for a carburetter or cistern, is moulded in one piece with an integral hinge arm 13 by a blow moulding or rotational casting method. As shown, two mould halves 16, Fig. 4, are shaped below the moulding cavity 17 with an opening permitting insertion of a blowing needle 18. The float body 12 is sealed after moulding by heating and twisting the tubular flask 19, Fig. 5. The hinge arm 13 may be hollow or solid and may be formed with integral hinge pins, or with a bore or bores for a subsequently fitted hinge pin or lugs.
Patent GB-1112292-A (GB)
Title: Improvements in and in the fixing of plastics tiles or the like
IPC: E04F13/18
Filed: 1964-04-04
Abstract: 1,112,292. Fixing facing tiles. T. FLINTOFT. 2 July. 1965 [4 April, 1964], No. 13976/64. Heading E1B. In a method of fixing square or other ceiling or wall tiles 1, e.g. of expanded polystyrene, each tile is initially deformed to a curved shape in a press, retained in this shape by a gummed paper backing strip, and is then fixed to a battening or other surface 7 by a single central nail or the like 6 which draws the tile to a flat condition against the surface 7. The paper strip yields during the fixing. A nailcovering motif 10 may be provided.
Patent GB-140304-A (GB)
Abstract: 140,304. Whitaker, A. July 29, 1919. Water-waste preventers. supply fittings for. - A second float e having a right-angled arm b is adjustably secured to the arm a of the usual float f. When the cistern is empty, the parts take up the position shown and remain thus during the filling of the cistern until the water reaches the float e. When the upthrust on this float reaches the required magnitude, the system suddenly swings about the pivot g, and the supply valve V is suddenly closed by the impact of the arm a.
Patent GB-528650-A (GB)
Title: Improvements in and relating to electric measuring instruments
IPC: G01R11/10
Filed: 1939-05-11
Abstract: 528,650. Alloys. BRITISH THOMSONHOUSTON CO., Ltd. May 11, 1939, No. 14076. Convention date, May 12, 1938. Drawings to Specification. [Class 82 (i)] [Also in Group XXXVI] In the construction of an electrical measuring instrument (see Group XXXVI) the following alloys are employed. For a compensating shunt a material of negative temperature coefficient of permeability of the composition Cu 20-40 per cent., Ni 60-81 per cent. and Fe approximately 2 per cent. is used. Alloys of high coercive force for permanent magnets are as follows, Ni 20; Al 12 ; Co5 ; Fe 63 or Ni 17; Al 10 ; Co 12 ; Cu 6; Fe 55 or Ni 25; Al 13; Fe 62 or Ni 30; Al 12; Fe 57 ; Si 0.75, all figures being per cent. by weight. A yoke is formed of high permeability material such as Ni 78.5 per cent. ; Fe the balance or Ni 46-48 per cent; Fe the balance. Specification 233,358, [Class 82 (i)], is referred to.
Patent GB-636488-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J5/32
Filed: 1947-05-27
Abstract: 636,488. Glass-metal seals. M-O VALVE CO., Ltd.. and WYKE, R. E. B. May 27, 1947, No. 14078. [Class 36] [Also in Group XL (a)] An electrode such as a hollow cylindrical anode 1 has two or more support wires 2, which may also act as the lead-in, and which all pass through a single hole in the envelope. The wires are pre-glassed as at 3, the glass beads being then fused together and to the envelope to form a seal.