baber/WOPTO huggingface dataset:
Patent GB-341847-A (GB)
Title: Improvements in and apparatus for electrolysis with mercury electrodes under pressure for the manufacture and production of hydrogen peroxide
IPC: C25B1/30
Filed: 1929-09-20
Abstract: 341,847. Electrolysis. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.- (I. G. Farbenindustrie Akt.-Ges. ; Frankforton-Main, Germany.) Sept. 20, 1929, No. 28560. [Class 41.] Liquid-electrode apparatus; electrolysis under pressure; hydrogen peroxide, obtaining.-Apparatus with mercury electrodes for the manufacture of hydrogen peroxide by electrolysis under pressure, comprises a pressure-resistant vessel A, Fig. 2, in which are mounted a number of superimposed cells E. The cells E are preferably built into a frame W which slides on rollers R into the vessel; levelling screws, not shown, are provided for each cell. Each cell comprises a ceramic mass the base of which is covered with a cementing composition M, Fig. 4, over which is applied a glass plate or plates G<1> on which the mercury electrode lies. The anodes are enclosed in tubular diaphragms D which are formed at the exit as siphons for passage of electrolyte to the cell below. Electrolyte is circulated from a reservoir B separately through the anode and cathode spaces to reservoirs B<11>, B<1>. Oxygen is introduced into the electrolyte in a horizontal or slightly downward stream by perforated tubes G secured in the cells by cemented caps or ground glass joints. The excess gas leaves the cell through openings in the arched roof F and leaves the pressure vessel at J whence it is returned to the system by a pump U. In the apparatus shown the pressure vessel is a horizontal cylinder, the cells being accordingly of varying width; in a modification a vertical cylinder is used which may be lowered over a column of cells of uniform size. The cells may be connected electrically in series or parallel.
Patent GB-1145812-A (GB)
Title: Improvements relating to remote controlled models
Inventor: DIPNALL DAVID JOHN JOSEPH
IPC: A63H18/12
Filed: 1966-06-27
Abstract: 1,145,812. Braking mechanism for toy. MINIMODELS Ltd. 21 June, 1967 [27 June, 1966], No. 28650/66. Heading A6S. A braking mechanism for a remote-controlled electrically-driven model running on wheels comprises a wheel brake actuated by a weight which is freely movable forwardly and rearwardly relative to the body of the model, the arrangement being such that when the model is decelerated by reducing the power output of the electric motor the momentum of the weight carries it forwards relative to the body and actuates the brake, and when the model is accelerated by increasing the power output, the weight moves rearwardly relative to the body and releases the brake. In Fig. 1, a car driven by an electric motor 17 has angled members 26 and 27, bearing at one end a weight 32 and at the other end' a brake shoe 31, pivoted at 28 and 29 respectively. When the car is decelerated, the weights 32 continue to move forward by virtue of their momentum, thus forcing the brake shoes 31 against the wheels 33, causing the car to stop. When the car accelerates, the shoes 31 are disengaged from the wheels by the reverse process. The braking mechanism may be used in connexion with freely travelling vehicles controlled by a cable, a locomotive running on tracks and particularly with a slot racer.
Patent GB-360583-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B7/06
Filed: 1930-09-25
Abstract: Thioindigo dyestuffs are prepared by condensing 6-alkoxy-3-hydroxythionaphthenes with mono- or disubstituted isatins having the following general formula:  <FORM:0360583/IV/1> in which a equals chlorine or methyl, b, hydrogen or chlorine, and c, hydrogen, chlorine or methyl.  In examples: (1) 6-methoxy (or ethoxy)-3-hydroxythionaphthene is condensed in acetic acid or anhydride with 5 : 7-dichlorisatin: (2) 6-methoxy (or ethoxy)-3-hydroxythionaphthene is condensed with 6-chlor-7-methylisatin: (3) 6-ethoxy-3-hydroxythionaphthene is condensed with 7-chlorisatin: (4) 6-methoxy-3-hydroxythionaphthene is condensed with 5-methyl-7-chlorisatin.  The dyestuffs furnish clear orange tints.  5-Methyl-7-chlorisatin is prepared from cyanoform-(2-chlor-4-methylanilide) according to the process of Specification 308,980, [Class 2 (iii), Dyes &c.].  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the condensation of 6-alkoxy-3-hydroxythionaphthenes with any isatin having the general formula given above but in which a equals any halogen or alkyl and b and c hydrogen, halogen, or alkyl; bromine as well as chlorine being mentioned as a suitable halogen.  This subject-matter does not appear in the Specification as accepted.
Patent GB-936539-A (GB)
Title: Improvements in the thermal insulation of boilers and other large structures
Inventor: JOLLEY GORDON
IPC: F22B37/36
Filed: 1961-08-09
Abstract: 936,539. Boiler casings; supporting thermal insulating material. NEWALLS INSULATION CO. Ltd. Aug. 9, 1962 [Aug. 1, 1961], No. 28789/61. Classes 64 (2) and 123 (2). A boiler or similar structure encircled by horizontal buckstays 2, 3 has its casing 1 covered with a layer of thermally-insulating material 13 which is provided with an outer protecting skin consisting of corrugated sheets 12 of e.g. aluminium, steel or reinforced plastic. Each buckstay is enclosed by a shroud 4 and the upper and lower edges of the sheets 12 are engaged in channels formed by the flanged ends of the upper and lower surfaces 6, 8 of the shrouds and by angle members 10, 11 spaced therefrom and secured to the surfaces 6, 8. The width of the channels is sufficient to accommodate the depth of corrugation of the sheets while the depth of the channels and the vertical distance between them is sufficient to allow for vertical expansion and contraction movements both of the boiler and of the sheets 12 so that at all times the latter remain free in the channels whilst being engaged between the sides of the channels. Where, as shown, the buckstays are of H-section an inverted channel member having vertical slots in its side walls spaced so as to fit the flanges of the buckstay may be used to support the buckstay shroud. The sheets 12, if large, may be additionally secured at the centre by cleading pins 14 welded to the boiler shell. In a modification, Fig. 6 (not shown), the buckstay is of inverted channel section and is not shrouded, a plate member is fixed to the inner flange of the buckstay and the protecting sheets are secured in channels formed in part by this plate and by further members attached thereto.
Patent GB-1272208-A (GB)
Title: NEW 4-SUBSTITUTED AMINO-5,7-DINITRO-2-(alpha,alpha-DIFLUOROALKYL)-BENZIMIDAZOLE COMPOUNDS HAVING INSECTICIDAL ACTIVITY, AND PROCESS FOR PREPARING SAME
IPC: A01N43/52
Filed: 1970-06-15
Abstract: 1,272,208. Benzimidazoles. ELI LILLY & CO. 15 June, 1970 [16 June, 1969], No. 28823/70. Heading C2C. Compounds of formula and their 4,6-dinitro-8-substituted-amino tautomers, wherein y is hydrogen, chlorine, fluorine, -CF 3  or -CF 2 CF 3  and the group -NR<SP>0</SP>R<SP>1</SP> is. one of many specified secondary or tertiary, optionally cyclic, amino groups, and alkali metal and alkaline earth metal salts thereof, are prepared by reaction of the corresponding chlorobenzimidazole with an amine, followed, if desired, by reaction with an alkali metal alkoxide or alkaline earth metal oxide. 4 - Chloro - 5,7 - dinitro - 2 - trifluoromethyl benzimidazole is prepared by reaction of 3-chloro o-phenylene diamine with trifluoroacetic acid to give 4 - chloro 2 - trifluoromethyl - benzimidazole, followed by nitration. The products of the invention have insecticidal, arachnicidal and nematocidal activity and may be used in pesticidal compositions or incorporated into inks, adhesives, soaps, polymers, cutting oils, oil or latex paints, textiles, cellulosic materials, grain, wood, lumber or seeds.
Patent GB-451394-A (GB)
Title: Improvements in and relating to moulds for matrix composing and type line casting machines
IPC: B41B11/52
Filed: 1935-10-18
Abstract: 451,394. Type-bar-making machines. INTERTYPE, Ltd.. 215, Farnham Road, Slough, Buckinghamshire.-(Klingberg, E. G. ; 4107, 47th Avenue, Long Island City, and Anderson, D. L.; 360, Furman Street, Brooklyn, both in New York, U.S.A.) Oct. 18, 1935, No. 28828. [Class 100 (iii)] Moulds.-In moulds for typebar-making machines, such as that described in Specification 14582/90, [Class 100], in which liners inserted between two relatively fixed mould members define the ends of the casting slot, and there may be also intermediate liners dividing the casting slot into compartments, displacement of the liners transversely of the mould members is prevented by providing a longitudinal groove across the entire casting face of one of the mould members, and a corresponding rib or the like on each liner to fill the groove to the full extent of the liner. As shown in Fig. 4, the lower part or body 2 of the mould is provided with a groove 11 receiving the ribs 8a on the liners 8. The groove 11 is shallow, and the part of the groove not filled by the ribs produces a bead on the slugs ; if the side walls of the groove 11 are perpendicular to the casting face, the bead on the first slug cast will be sheared off when the slug is ejected, and will remain to fill the groove for subsequent casts. The end liners are provided as usual with pairs of holes to fit on studs on the lower face of the upper part or cap 1 of the mould. When an intermediate liner is used for shortening the length of the mould liner, a dummy slug is cast in the vacant portion of the mould slot between the adjustable liner and the left-hand liner during the first casting operation, and remains in the mould until it is necessary to change of length of the mould slot. In the modification shown in Fig. 3, the left-hand liner 20 is provided with a rib 21 extending the full length of the mould slot and just beyond the inner face 26 of the right-hand liner 23, the rib 24 of which is correspondingly offset from the face 26. The ribs are attached to the liners by rivets 22 ; in the case of a long liner, as indicated at 28, an additional rivet 29 is used adjacent to the inner face of the liner.
Patent GB-1193106-A (GB)
Title: Improved Aerosol Valve.
IPC: B65D83/14
Filed: 1967-06-23
Abstract: 1,193,106. Delivering measured quantities of liquid. UNION CARBIDE CORP. 23 June, 1967 [24 June, 1966], No. 28990/67. Heading B8N. [Also in Division F1] An aerosol metering dispenser valve comprises a valve stem 20 slidable in a housing 10 which is secured in a container by a closure 37, the stem having an opening 24 normally cut off from communication with a measuring chamber 15 by means of a resilient sleeve 25 and an end 21 adapted to co-operate with a resilient flange on the housing defining an opening 36. The stem which may be of plastics material is guided in the housing by means of three or four lands (15, Fig. 2); the portion of the stem below the opening 24 may be solid. The moving parts of the valve may be coated with a synthetic plastics material.
Patent GB-181650-A (GB)
Title: Improvements relating to the opening of hermetically sealed tins with lever lids
Filed: 1921-11-01
Abstract: 181,650. Snook, F. J. Nov. 1, 1921. Opening by cutting.-The flange of the lever lid a of a tin is cut away so as to provide a cutting-tongue c flanked by two notches d. The operation of cutting out the inner tagger b is performed with the lid a in the position shown, the notches d riding over the inner rim e of the tin, which rim serves as a guide.
Patent GB-519239-A (GB)
Title: Improvements relating to electric cables
IPC: H02G7/00
Filed: 1938-10-06
Abstract: 519,239. Cables. BEAVER, C. J., LISHMAN. R. C., and GLOVER & CO., Ltd., W. T. Oct. 6, 1938, No. 29020. [Class 36] Electric cables are screened from the sun or other external heat by an elongated, preferably arcuate, plate 1 mounted on supports 4 held to the cable 2 by clamping means 7, 8. The plates 1 may be separate from, or integral with, the supports 4 or the clamping means. Lugs 6 position the clamping means when separate. The plate 1 may be of metal, asbestos, concrete &c. and when arcuate, may have an internal radius from 1“ to 1¢ times the external radius of the cable. The supports may be of cast iron and the clamping means of phosphor bronze.
Patent GB-650950-A (GB)
Title: Improvements in and relating to temporary-twist devices in textile spinning or twisting machines
IPC: D01H7/92
Filed: 1948-09-13
Abstract: 650,950. Twist tubes for textile spinning &c. machines. HEGEDUS, E. Sept. 13, 1948, No. 29140/47. Convention date, Sept. 9, 1943. [Class 120(ii)] A twisting device for imparting a false twist to rovings or slivers during their passage to a twisting spindle comprises a rotary twisting tube 2 having internal guiding means consisting of superposed bars 24, 25 extending across the tube, the wall of the tube having an undulating slot 16, which is located in such a manner with respect to the bars 24, 25 that the roving or sliver on being inserted through the slot into the tube will be wound around the bars to extend along an undulating course. Incisions may be provided midway along the bars 24, 25 for guiding the roving orsliver. The tube 2 preferably is supported on rollers 18, 21 and is rotated frictionally by roller 21 driven from the spindle driving drum. The above subject-matter was. laid open to public inspection under Sect. 91 on September 13th, 1948 under the powers of Rule 118. The Specification as laid open to inspec-- tion under Sect. 91 comprises also a twist tube having a straight slot in its wall and having guiding and driving arrangements as described in Specification 651,337. This subject-matter does not appear in the Specification as accepted.
Patent GB-871744-A (GB)
Title: An improved oxygenator
IPC: A61M1/32
Filed: 1957-09-17
Abstract: 871,744. Oxygenating blood. GEWECKE, T. H., and BROMAN, C. R. Sept. 17, 1957 [Sept. 18, 1956], No. 29184/57. Class 81 (2). A blood oxygenator comprises an envelope of flexible translucent material having an oxygenating chamber 23, a defoaming chamber 25, passages for the introduction of blood and oxygen and a tortuous outlet passage for removing free gas and oxygenated blood. Two sheets of polyvinyl chloride are heat-sealed together along side edges 15 and top edge 16 to form an envelope, along a vertical line 21 to define with one side edge 15 an oxygenating chamber 23 and along a transverse line 24a to form a defoaming chamber 25 at the top of the envelope. The oxygenating chamber 23 has in let conduits 11, 12 for venous blood and oxygen respectively. A vent 13 for free gas is provided for the defoaming chamber 25. A zig-zag passage defined by sealing along lines 24b-24g connects the bottom of the defoaming chamber 25 to a filter 14a and an outlet conduit 14. Projecting tongues 28 are sealed into the zig-zag passage, where it changes in direction, to slow down the passage of oxygenated blood and facilitate the escape of remaining free gas. When not in use, the conduits 11, 12, 14 are stored in a pocket 32 formed between the zig-zag passage and one sealed side of the envelope. In use, the bag is supported by a strap 17 sealed to the envelope or by a rod which is inserted between the top edge 16 of the envelope and a horizontal seal (not shown). Reference has been directed by the Comptroller to Specification 844,881.
Patent GB-896893-A (GB)
Title: Improvements relating to the production of iron oxide from iron ores
Inventor: REEVE LEWIS
IPC: C22B1/08
Filed: 1959-08-26
Abstract: In a process for up-grading iron ore, it is crushed and added to aqueous hydrochloric acid to form an acidic solution of ferrous chloride that also contains aluminium and/or phosphorus, with or without calcium, the pH of the solution is raised so that the aluminium and/or phosphorus are precipitated as hydroxide or phosphate without precipitating ferrous iron, the solution is separated from insoluble matter and the ferrous chloride is converted to ferrous or ferric oxide.  When the iron in the ore is in the ferric form, a solution of ferric chloride is obtained and reduced to ferrous chloride by reaction with metallic iron. Silica and alumina may be filtered from the solution with the precipitate or before the aluminium and/or phosphorus are precipitated.  The pH is raised to between 3 and 5 by adding calcium carbonate or ferrous carbonate to obtain a pH of about 1,5 in a first stage, and than by adding metallic iron to reduce any ferric chloride to ferrous chloride and to react with remaining free acid.  Soluble calcium is precipitated by adding ferrous sulphate or manganese sulphate.  The ferrous chloride is removed as crystals by evaporation or by salting out with gaseous hydrogen chloride, and then is hydrolyzed by heating at 300 DEG  to 350 DEG  C. in combustion gases containing steam and free oxygen. Salts which are not hydrolyzed may be removed from the iron oxide by leaching with water.  An example is given.  Specification 734,080 is referred to.
Patent GB-159312-A (GB)
Title: Improvements in method of feeding water to boilers and apparatus therefor
IPC: F22D5/12
Filed: 1919-11-24
Abstract: 159,312. Marks, E. C. R., (Northern Equipment Co.). Nov. 24, 1919. Feed-water, supplying and controlling. - In a battery of boilers fitted with economizers, the feedsupplies to an economizer and to the boiler with which it is associated are controlled by means dependent upon the water - level in the boiler. Feed-water is forced' by a pump 12, Fig. 1, through a main 14, and branches 15 into the economizers 11, from which it is withdrawn through a pipe 16 by a pump 18 and supplied to the boiler through a main 20 and branches 21. Valves 33, 32 in the supply-branches of an economizer and boiler are controlled by a float or other regulator 24 operated by the change of water-level in the boiler. The valve spindles may be connected together by a yoke 40, Fig. 4, the links 43 having universal joints 44. The regulator shown is of the kind in which a tube in free communication with the boiler at the waterlevel therein is surrounded by a steam or other vapour generator, which is in communication with diaphragm chambers 30 on the feed-valves. An economizer feed-valve and the corresponding boiler feed-valve may be controlled by separate regulators.
Patent GB-500713-A (GB)
Title: Guide apparatus for axial flow turbo-machines
IPC: F01D25/24
Filed: 1938-10-10
Abstract: 500,713. Elastic - fluid turbines. AKT.-GES. FUR TECHNISCHE STUDIEN. Oct. 10, 1938, No. 29296. Convention date, Nov. 3, 1937. [Classes 110 (i) and 110 (iii)] In a turbine or compressor diaphragm comprising blades 4 mounted between a guide disc 1 and an outer ring 2 connected by struts 3 the struts 3 are passed radially through bores 8 in the outer ring into holes 9 in the guide disc. The struts may be secured by welding or by screwing into the outer ring, and they may be given an initial stress, by making them a force fit in the outer ring and guide disc or by shrinking these elements on to them. The struts 3 may be made of a material more resistant to heat and creep stresses than the material of the disc 1 and outer ring 2 which may be made of a weldable cast material or alloy. The disc and ring may be made from a single plate from which is removed an annular ring corresponding to the flow area. The shape of the bores 8, 9 is not limited to the circular form shown.
Patent GB-1317482-A (GB)
Title: Protective devices
IPC: B23H3/02
Filed: 1970-06-18
Abstract: 1317482 Protective arrangements ROBERT BOSCH GmbH 18 June 1970 [18 June 1969 31 July 1969] 29523/70 Heading H2K In a protective arrangement for a D.C. load, e.g. an electrolytic machine 11-13, of the kind having a thyristor 15 to short circuit the load when the load resistance drops below a predetermined value, at least one silicon diode 17 is connected in series with the load to ensure that in the event of the short circuiting of the load there is sufficient voltage across the anode/ cathode path of the thyristor 15 for it to become conductive. In the arrangement shown a plurality of series connected diodes 17 is normally short-circuited by a plurality of parallel transistors T 1 -Tn. Should the gap between the work-piece 11 and electrode 12 become too small, then the potential between a point 22, 35 on the positive supply line and the junction 34 of voltage dividing resistors 30, 31 is sufficient to cause transistors Tb, Ta to conduct to apply a triggering potential to the gate S of the thyristor 15, which conducts to short-circuit the load conductors. At the same time the potential between points 22, 24 is not sufficient to maintain the transistors T 1 -Tn conductive, so that the diodes 17 cease to be short-circuited. Also, this potential is not sufficient to maintain a transistor Tc conductive so that an electromagnet 42 ceases to be energized and contacts 38 open to disconnect the whole arrangement. Over-voltage protection is provided by a resistor 37 and a Zener diode 36 which conducts to trigger the thyristor 15 when the supply voltage is too high. In alternative arrangements, Figs. 2 and 3 (not shown), the silicon diodes also serve to rectify an A.C. supply.
Patent GB-446091-A (GB)
Title: Improvements in cord and tape gripping means for use with curtain pleating or gathering tape
IPC: A47H13/16
Filed: 1934-11-16
Abstract: 446,091. Drawing curtains. FRENCH, G. F., Chester Road Mills, Hulme, Manchester. Nov. 16, 1934, No. 29532. [Class 52 (v)] Clamping means for preventing movement of curtain pleating or gathering tape d along the draw cords e after the curtain is pleated have a central member which fits in the hook tube d<1> and has integral and parallel members c on each side resting on the outer face of the tape d on draw cords e to clamp the tape d to the cords e. The upper end of the central member may be extended forwards and downwards to form a suspending hook b for the curtain or the curtain may be suspended by separate hooks. The central member and hook may be formed of a single or double length of wire or alternatively the whole clamp and the hook, if provided, may be formed of strip metal. Specifications 200,163, 212,048, 266,860, 329,390, [all in Class 52 (v)], and 424,768 are referred to.
Patent GB-230888-A (GB)
Title: Improvements in steam locomotives
IPC: B61C1/02
Filed: 1923-11-23
Abstract: 230,888. Beyer, Peacock, & Co., Ltd., and Whitelegg, R. H. Nov. 23, 1923. Railway locomotives, steam, turbine, of articulated construction; tanks.-An articulated locomotive, of the type wherein the supporting frame of the boiler unit A is flexiblv connected at or near each end beyond the boiler to a power-driven unit B carrying water or fuel tanks G or condensers, has on one or both power units one or more additional power-driven units or groups of wheels C flexibly connected to the unit. The tank of the unit may extend over the additional wheels and be flexibly connected to them, or they may carry a separate tank. The tanks may be narrowed at their outer ends to reduce overhang on curves, while tanks may be placed on the boiler unit. Any wheel group may engage rack rails or centre rails. The additional wheels may be driven by turbines or reciprocating engines or both, and remote-control power generators or converters may be used. The cylinders may be high-pressure or compound. Specification 230,511 is referred to.
Patent GB-926978-A (GB)
Title: Process for the halogenation of phthalocyanines
Inventor: STEWART JOHN DEWAR
IPC: C09B47/10
Filed: 1961-08-18
Abstract: A metal-free or a complex metal phthalocyanine is chlorinated or chlorinated and brominated by reaction with pyrosulphuryl chloride in a melt composed essentially of a Friedel-Crafts catalyst.  An inorganic salt, thionyl chloride and a halogen carrier such as sulphur monochloride may also be present. Friedel-Crafts catalysts mentioned are aluminium chloride, aluminium bromide, ferric chloride, zinc chloride and antimony trichloride.  Chlorination occurs unless an alkali-metal bromide, ammonium bromide, cuprous bromide or a bromide of a Group II metal of the Periodic Table such as calcium or magnesium bromide is present and/or unless aluminium bromide is used as the Friedel-Crafts catalyst when chlorination and bromination occurs. Examples are given.