baber/WOPTO huggingface dataset:
Patent GB-1166835-A (GB)
Title: Improvements in or relating to Electromagnetic Inductors
Inventor: CASHMORE PETER JOHN
IPC: H01F38/10
Filed: 1966-07-26
Abstract: 1,166,835. Reactors. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES. 1 Sept., 1967 [26 July, 1966], No. 33492/66. Heading HIT. An electromagnetic inductor comprising an inner core limb of ferromagnetic material carrying one or more electrical windings, and an outer core shell of ferromagnetic material which extends across the end faces of the inner core limb to enclose the inner core limb and the winding, has an inner core limb which projects at each end beyond the winding, at least one projecting end being associated with magneticflux-diverting means the effect of which is, in use of the inductor, to divert some of the flux in the inner core limb away from the part of the shell opposite each end face of the inner core limb to other parts of the outer core shell removed from said part. The flux-diverting means may be constituted by bending back some of the surface laminations of the inner core limb in the region of the projecting ends (Fig. 3, not shown), or by bending up the ends of such surface laminations (Fig. 4, not shown), or by the use of L-shaped laminations for the inner core-limb (Fig. 5, not shown), or by the use of l-shaped laminations for the inner core limb (Fig. 6, not shown), or by the use of laminated or solid insert pieces (Figs. 1, 7, 8, 29, not shown), or by cranking corner regions of the outer core shell members (Figs. 10, 11 and 12, not shown). Several ways in which various embodiments may be combined are described. The inner core limb may be comprised of one or more stacks of laminations separated by air gaps filled with insulating blocks or adhesive, and the outer core shell may comprise two L-shaped laminated members or a U-shaped laminated member interfitted in each case with a U- shaped laminated member. The completed inductor, which may be used as a ballast choke in discharge lamp circuits, is encased and dipped in varnish.
Patent GB-1474631-A (GB)
Title: Lactones of the diazaxanthene series and dye precursors for copying processes
IPC: C09B11/26
Filed: 1974-07-30
Abstract: 1474631 Diazaxanthene lactones BASF AG 30 July 1974 [1 Aug 1973] 33521/74 Addition to 1437228 Heading C4P The invention comprises diazaxanthene lactones of the general formula wherein R<SP>1</SP> is phenyl optionally substituted by C 1 -C 3 -alkyl, Cl or Br; each of R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> is independently H 1  alkyl, cyanoalkyl or hydroxyalkyl each having 1-6 C atoms in the alkyl group, alkoxy-alkyl of 2-12 C atoms, alkoxycarbonylalkyl of 4-11 C atoms or phenylalkyl of 7-12 C atoms, NR<SP>3</SP> and R<SP>4</SP> may together with the adjacent N atom form a heterocyclic ring, R<SP>5</SP>, X and Y are H, hydroxy, chlorine, or C 1 -C 3  alkyl, Z is H, chlorine or nitro, or is alkyl, hydroxyalkyl or haloalkyl each having 1-3 C atoms in the alkyl group, m is 1, 2 or 3 and n is 1, 2 or 3. They are prepared by condensing a benzoylbenzoic acid of the general formula with a pyrimidine of general formula wherein R is H or C 1 -C 4 -alkyl or aryl and R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP>, R<SP>6</SP>, X, Y, Z, m and n are as above. The reaction takes place at 60-160 C. in presence of water-eliminating agents, e.g. sulphuric acid, polyphosphoric acid, acetic anhydride or zinc chloride optionally in presence of a solvent, e.g. trichlorobenzene. The lactones are used in pressure sensitive copying processes.
Patent GB-637759-A (GB)
Title: Improvements in or relating to method of and apparatus for manufacturing articles from wire screen material
IPC: B21F33/02
Filed: 1947-12-19
Abstract: 637,759. Filters. WILY, J. H. Dec. 19, 1947, No. 33608. Convention date, May 6, 1946. [Class 46] [Also in Group XXII] A filter or strainer comprises a hemispherical wire screen 45 with its edges embedded in and lying below the surface of a rim R of a malleable metal such as a lead alloy. A handle 50 may be secured by means of nuts in an opening in the bottom of the strainer.
Patent GB-429421-A (GB)
Title: Charge forming devices for internal combustion engines
IPC: F02M25/06
Filed: 1934-11-22
Abstract: 429,421. Vaporizers. AKTIEBOLAGET WEIERTZ PATENTER, 17, Roslagsgatan, Stockholm. Nov. 22, 1934, No. 33620. Convention date, March 23. [Class 7 (iii)] In connection with an exhaust heated vaporizer which heats the fuel before air is mixed therewith, the fuel and air control valves are operated simultaneously through a common control mechanism and a dashpot &c. retards the movement of the air valve relatively to the fuel valve when the valves are moved towards the closing position. Part of the exhaust gases from a manifold 2 enter a sinuous pipe 11 in a casing 5 and draw thereinto fuel from a cylinder 14 provided with fins to increase the heating effect of the gases. These flow around the pipe 11 which gradually increases in crosssectional area towards a funnel-shaped mouthpiece 12 in a mixing chamber 4 having an air inlet 6 controlled by a valve 7 which is closed at starting and during idling when a petrol carburetter 3 is functioning. A flap valve 10 divides the exhaust gas stream between the casing 5 and a byepass 8 and in one end position closes the end of the pipe 11. Fuel is supplied to the cylinder 14 through a screwed sleeve 15 and passage 16 from a constant level chamber 17 heated by conduction from the casing 5, the flow being controlled by a needle valve 20. The valve 20 is supported by a bell-crank lever 22 having one arm adjustably connected to an arm 24 adapted to be moved clockwise by a spring 25 to open the valve to a degree determined by the abutment therewith of an arm 28 rigid with a rocking arm 30 actuated by a control rod 31. On opening the valve, an abutment arm 35 integral with the arm 30, rocks a bell-crank lever 32 to open the air valve 7, but on closure of the fuel valve 20, a dashpot 34 connected to the lever 32 delays the closing of the air valve 7.
Patent GB-414946-A (GB)
Title: Improvements in and relating to gun recoil apparatus
IPC: F41A27/30
Filed: 1933-12-01
Abstract: 414,946. Gun - recoil apparatus. MALLENAU, F. MAYER-, 4, Dr. Ludwig Rieger-Strasse, Modling, near Vienna. Dec. 1, 1933, No. 33766. Convention date, Dec. 1, 1932. [Class 92 (i).] To obtain a long recoil path at large angles of elevation without the breech of the gun striking the ground, the limit of run-out movement is automatically displaced forwardly as the elevation of the gun is increased. In the form shown, the barrel is connected by chains or like flexible connecting means K-K<1> on each side of the gun to fixed brackets H-H<1> at points A-A<1> situated above the trunnions Z-Z<1>. During elevation, the chains slacken and the barrel is then moved forwardly by the run-out spring to the limit imposed by the tightening of the chains. The arrangement shown also allows the weight of the gun about the trunnions to be counterbalanced during elevation by the force of the return spring acting through the chains between the gun and the points A-A<1>.
Patent GB-959818-A (GB)
Title: Process of manufacturing acetylene by thermal decomposition of methane
IPC: C07C2/76
Filed: 1961-09-21
Abstract: In the production of acetylene and possibly ethylene by the thermal decomposition of methane in the presence of hydrogen, an aromatic hydrocarbon is added to the feed as a homogeneous catalyst.  Benzene, toluene, xylene, ethylbenzene, isopropylbenzene, styrene, naphthalene, methylnaphthalene, anthracene, phenanthrene or biphenyl or mixtures thereof may be added in amounts of 0.01-5% by mol. of the gaseous mixture. Decomposition is effected at above 1100 DEG  C.; in the examples cracking is effected in the presence of a bed of alumina or silica pebbles.
Patent GB-505857-A (GB)
Title: Improvements in or relating to the production of tempered glass sheets
IPC: C03B27/04
Filed: 1937-12-07
Abstract: 505,857. Tempering glass. FERLITO, E. Dec. 7, 1937, No. 33912. Convention date, Sept. 25. [Class 56] A method of producing a tempered glass sheet which can be separated into two or more sections without fracture consists in forming on one or both sides of the sheet, before or during the heating, one or more grooves along which the sheet can be divided after tempering The method can be used for removing a part. of a tempered sheet which has been marked by suspension tongs. The grooves b, Fig. 1, may be formed by grinding before the sheet is inserted in the furnace, or they may be formed by pressing blades d or rollers against the softened glass. The penetration of the tools can be facilitated by heating the glass, along the zones b by blowpipe flames. The tools may be guided by strips f, Fig. 3, which may also be pressed against the sheet to prevent it from warping. These strips f may be used to groove and flatten the sheet close to all of its edges, and similar strips g, Fig. 7, may be formed with angular shoulders g<1> that form on the glass a fin h, that enables the strips to support the sheet. The strips may be heated by any suitable means, preferably electrical, to prevent breakage of the glass. The sections of the sheet defined by the grooves can be separated by cutting the glass along the grooves by any usual means.
Patent GB-429611-A (GB)
Title: Improvements in or relating to joints for high tension electric cables
IPC: H02G15/00
Filed: 1933-12-04
Abstract: 429,611. Cable joints. STANDARD TELEPHONES & CABLES, Ltd., and WEBB, J. K., Connaught House, Aldwych, London. Dec. 4, 1933, No. 34022. [Class 38 (i)] High tension cable joints are insulated by filling the joint sleeve with a liquid polymerizable material such as styrene and then polymerizing the material by heating to form a solid mass. The joint 5 may be covered with paper tape 6 impregnated with styrene and covered with metallized paper 7 and enclosed in a lead sleeve 3 having a filling plug 10 at each end. The styrene is then filled into the sleeve under pressure or drawn in by a vacuum pump. If the pencilled surface of the cable insulation 1 is wiped over with a solution of chlorinated diphenyl and a similar chlorinated aromatic hydrocarbon is mixed with the styrene, the joint insulation will weld on to the cable insulation. The heating is carried out at a temperature of 120 to 130‹ C. in an asbestos enclosure 27, Fig. 6, fitted with a heater 25 and thermometer 28, funnels 24 topped up with styrene being fitted to the filler openings. This mode of insulation may be applied to the joints described in Specifications 377,311, 390,208 and 390,817. If applied to an expansion joint as shown in Fig. 4, the flexible conductors 16 and cable ends 4, 4<1> are enclosed in a sleeve 17 which is sealed directly to the cable core 4 and through a bellows 18 to the core 4<1>, an extension 17<1> having a sliding fit with the core 4<1>. The whole of this joint is then moistened with oil, hydroquinone, &c. to prevent adhesion or penetration of the styrene and enclosed to slide in an outer sleeve 19 which is roughened externally to cause the styrene to adhere thereto. In the case of a stop joint, any space between the joint insulation and the lead sleeve is closed by compressing the lead on to the insulation, applying an indiarubber lapping to the insulation, or roughening the interior of the sleeve to cause adhesion of the styrene. Where a sylphon reservoir is used to maintain a supply of oil a valve may be employed that permits free flow into the joint or cable, but partially resists the outward flow during heating.
Patent GB-506186-A (GB)
Title: Improvements in means for handling loads
IPC: B60P1/64
Filed: 1937-12-09
Abstract: 506,186. Handling heavy loads or load-containers. GLEDHILL, W. V., and CROWTHER, H. Dec. 9, 1937, No. 34042. [Class 78 (iv)] A load-platform used to support a container or heavy load when not on the transfer vehicle is made yield able to prevent damage when struck by the vehicle as it is run thereunder. Four jacks e are used to support two longitudinal bars c across which bearers b are laid. When the load is supported on the bearers b and the jacks are raised, a vehicle can be run thereunder so that on lowering the jacks again the load will be supported on the crossbars i of the vehicle leaving the bearers b free to be withdrawn laterally. By a reverse process a load can be removed from a vehicle and dropped on to storage trestles placed in position after the unloaded vehicle has been driven away. The cross-bars i of the vehicle may be replaced by recesses in the floor into which the bearers b are lowered. To make the load-platform yieldable, if inadvertently struck by the vehicle, either the heads of the jacks are furnished with wheels d on which the bars c can slide, or the jacks are mounted on wheeled bases, in which latter case the bars c are fixed to the jacks and the pairs of jacks on each side of the apparatus connected by braces.
Patent GB-300035-A (GB)
Title: Method of uniting by glueing foils of aluminium, tin or the like with a layer of paper
Filed: 1927-12-16
Abstract: 300,035. Delling, A., and Hueck, E., (trading as Hueck & B³rren, [Firm of]. Dec. 16, 1927. Drawings to Specification, Affixing sheet material by adhesive.-Aluminium, tin, &c. foil is united with a layer of paper by dots of glue distributed over the whole surface of the paper.
Patent GB-1285309-A (GB)
Title: Sprinkler pipe
IPC: B01D29/33
Filed: 1971-07-21
Abstract: 1285309 Sprinkler pipes SCHAUBSTAHL WERKE 21 July 1971 [29 July 1970] 34173/71 Heading F2P A sprinkler pipe which is perforated by pairs of elongate holes 5, 8 formed by pressing out, but not removing web 6, 9 of the pipe wall between parallel slits, has successive longitudinal portions 10, 7, 4 in which the elongate holes extend alternately in the axial direction and in the circumferential direction. Preferably the portion having circumferentially extending holes comprises from one to six parallel rows of holes and the holes in adjacent rows may be in off-set relationship e.g. by half a hole. The pipe may have screwed portions or flanges at its ends for connecting purposes (Figs. 1 and 2, not shown).
Patent GB-175795-A (GB)
Title: An improved process for the production of sodium pentaborate, from boron ores
IPC: C01B35/10
Filed: 1920-12-03
Abstract: Sodium pentaborate is obtained by treating a boron ore with nitre cake or the like and sulphuric acid in such quantity that the free sulphuric acid is equivalent to the calcium of the ore and the sodium in the nitre cake or the like together with the sodium in the ore, is sufficient to give a ratio of Na2O to 5B2O3.  A small excess of soda above this quantity may be present, but not more than 10 per cent of that theoretically necessary.
Patent GB-1140765-A (GB)
Title: New formed articles derived from film of polyethylene-1:2-diphenoxyethane-4:4'-dicarboxylate
Inventor: BUTEUX RICHARD HAROLD BARCLAY
IPC: B29C51/14
Filed: 1966-07-29
Abstract: 1,140,765. Sheet forming; laminated polyolefines; polyethylene - 1: 2 - diphenoxy ethane - 4:4<SP>1</SP> - dicarboxylate films. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 July, 1967 [29 July, 1966], No. 34234/66. Headings B5A, B5B and B5N. [Also in Division B2] High strength dimensionally stable, articles are made by drawing a film of polyethylene - 1: 2 - diphenoxyethane - 4: 4<SP>1</SP> - dicarboxylate, which film has a thickness of 0À0005 to 0À003 inches. The film may be bi-axially oriented, amorphous, or crystalline and may contain finely divided fillers &c. e.g. titanium dioxide, silica, silicates, clays, talc, ground mica or mother of pearl. The drawing operation may comprise conventional vacuum forming at elevated temperatures, or press-forming, e.g., pressing, cupping, ironing or sinking, at room temperatures. The film may be laminated with other formable films such as: polyolefins, e.g. polyethylene, polypropylene and poly - 4 - methyl pentane - 1; unoriented and uncrystallized polyethylene terephthalate; polamides e.g. polyhexamethylene adipate; polyvinyl acetate; partially hydrolysed polyvinyl acetate; vinyl chloride/ vinyl acetate copolymers; ethylene/vinyl acetate copolymers; butadiene/methyl methacrylate copolymers; butadiene/methyl methacrylate/styrene copolymers; methyl methacrylate/methacrylic acid copolymers; and copolymers of vinylidene chloride with one or more of acrylonitrile, itaconic acid, acrylic acid or vinyl chloride. The laminates may be made by first treating the polyethylene - 1: 2 - diphenoxyethane - 4: 4<SP>1</SP> - dicarboxylate film with an adhesive such as a low molecular weight polyester or copolyester used either alone or in conjunction with an isocyanate, applying a second film, and bonding the two together by passage between heated rolls. Such a process is of particular use with polyethylene or polypropylene films. The polyethylene - 1: 2 - diphenoxy - ethane - 4: 4<SP>1 </SP>- dicarboxylate film may be produced by slot extrusion, amorphous films being produced be quenching the freshly extruded film to a temperature below 80‹ C. and crystalline films being formed either by heat treating an amorphous film at temperature within the range 80-125‹ C. or by quenching the freshly extruded film to a temperature within that range. The extruded films may be bi-axially drawn, crystalline drawn films being made either by drawing crystalline undrawn films or by crystallizing drawn films by heat treatment within the range 150-220‹ C. The films may be simultaneously drawn in both directions by the tubular process or may be drawn in each direction sequentially.
Patent GB-458458-A (GB)
Title: Improvements in and relating to the production of colour photographs
IPC: G03F3/04
Filed: 1935-06-20
Abstract: 458,458. Colour photography. BERNARDI, A., 70, St. Margarets Road, Edgware, Middlesex, and OMNICOLOR, Ltd., 220, Fulham Palace Road, London. June 20, 1935, No. 34241. Divided out of 458,428. [Class 98 (ii)] Colour photographs are produced from two separate colour-record negatives prepared, as described in Specification 458,427, by exposure through (a) a weak blue or bluegreen filter which passes substantially the whole of the visible spectrum but tones down the red end, and (b) a red or reddish yellow filter (containing, e.g. auramine and Rhodamine B) which absorbs blue but passes yellow, three positive components being produced from the two negatives in a manner known per se by making a print from negative (a) and colouring it minus-blue, a print from negative (b) and colouring it minus-red, and a print from the two negatives in registered superimposition and colouring it yellow. The positives may be coloured in any known manner by dye-stuffs or dyestuff-formers present in the emulsions before exposure, or applied after exposure and development. The processes described in Specifications 169,533, [Class 98 (ii)], and 458,427 are referred to. The Provisional Specification describes also the subject-matter of Specification 458,428.
Patent GB-325547-A (GB)
Title: Self-sealing doors for coke ovens
IPC: C10B25/06
Filed: 1928-11-21
Abstract: 325,547. Jackson, L. Mellersh-, (coppers Co.). Nov. 21, 1928. Coke ovens.-A coke oven door automatically locked in position or unlocked, during its positioning or removal by a door extracting mechanism, is so arranged that it may be placed in position secured to the battery structure, and the seal adjusted and latched by a simple movement of the door extracting mechanism, the lifting movement of this mechanism being sufficient to release the sealing means prior to removal of the door. The door itself comprises a lining 26 enclosed in a frame 24 having a peripheral flange 27 which engages with a shoulder 64 on the wall casting 63. The door has two pairs of pivotally mounted arms 28 which engage angle bars 29 on the brickstays 15 and carry sealing means comprising an asbestos rope 33 mounted on channel irons 34 connected across the door by bridging members 35, 38 each mounted on a guide pin 37. Bars 40, to actuate the bridging members 35, are suspended by pivotally mounted arms 41 connected to a cross bar 42 and have annular members 43 surrounding a flange 44 of the member 35. The bars 40 are rigidly connected by plates 48. Latching mechanism comprises a vertically movable member 49 actuated by a spring 50 to engage the corresponding plate 48, Fig. 10, and is contained in a casting 52 secured to the frame 24 by bolts 53. A levelling door 56 closes by gravity and is retained by a latch 58. To place a door in position the arms 21 of the door extracting apparatus engage the latching mechanism, Fig. 10, and the arms 28 are raised so as to be out of alignment with the angle irons 29. The apparatus is then moved towards the opening into which the door is placed with the flange 27 against the shoulder 64. The arms 21 are now lowered so that the arms 28 engage the angle irons. The apparatus is then advanced, arms 21 pushing against the plates 48 compressing springs 45 and forcing the frame 34 and the rope 33 into the wedge-shaped recess round the door. The latches 49 will be pushed down by the spring 50 in front of the plates 48 and retain the sealing mechanism in place. The door extracting apparatus may now be moved back. To prevent damage to the sealing means or the spring controlling it, a shoulder on each of the plates 48 engages a shoulder on the door frame when the sealing means is pushed far enough home. To remove a door the operations above described take place in the reverse order.
Patent GB-1004749-A (GB)
Title: Friction hinges
Inventor: HOLLOWAY ERIC BOYD
IPC: F16C11/04
Filed: 1964-08-22
Abstract: 1,004,749. Friction hinges. WALKER & WOOD Ltd. Aug. 22, 1964, No. 34440/64. Heading E2F. A hinge for windows comprises two leaves 10, 14 provided with transverse conical portions 11,13 and a friction inducing insert 12, e.g. of nylon. The hinge is held together and the frictional resistance thereof adjusted by a screw 15 the head 16 of which engages the portion 11 and the threaded portion engaging a friction inducing insert 19 in a boss 17 of the portion 13 to reduce the risk of the screw releasing the frictional grip of the hinge when the members 10, 14 are rotated relative to each other in the direction of releasing the screw. The insert 19 may be screw threaded in the boss 17 and be clamped there by turning over the ends 17a of the boss to grip the insert 19.