baber/WOPTO huggingface dataset:
Patent GB-119659-A (GB)
Title: Improvements in or relating to the Manufacture of Bismuth Compounds and Metallic Bismuth Free from Arsenic.
Inventor: BUSVOLD NILS
IPC: C22B30/06
Filed: 1918-09-30
Abstract: 119,659. Busvold, N. Oct. 3, 1917, [Convention date]. Arsenic sulphide; bismuth chloride, fluoride, oxychloride, sulphide, and other salts.-Bismuth salts are separated from impurities commonly associated with bismuth in bismuth ores, the associated metals being precipitated as sulphide while the bismuth is obtained in solution and may be recovered in the metallic form by precipitation with zinc, by reduction of the oxychloride, or by electro deposition. A bismuth ore may be dissolved in hydrochloric acid and the metals completely precipitated by sulphuretted hydrogen, the precipitate being then treated with a further quantity of the crude solution which produces a pure solution of bismuth chloride, leaving the arsenic &c. as sulphide. When a bismuth sulphide ore is treated with an acid (hydrochloric, hydrofluoric, or other acid) the evolved sulphurettd hydrogen may be used to effect the precipitation of the crude sulphide. The sulphide ore may be completely dissolved in acid, the solution being then treated with more of the ore or with another sulphide. Arsenic sulphide will then be first precipitated. Or a quantity of bismuth sulphide ore may be treated with less than enough acid to dissolve it, when a bismuth salt is obtained leaving arsenic sulphide undissolved.
Patent GB-371650-A (GB)
Title: Improvements in or relating to electrically heated utensils
IPC: A47J27/00
Filed: 1931-05-30
Abstract: 371,650. Heating liquids by electricity. DENNES, N., White croft, Solihull, near Birmingham, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. May 30, 1931, No. 15887. [Class 39 (iii).] In an electrically heated liquid-containing utensil such as a kettle, coffee pot, or urn, in which the heating element 2 is secured against a wall 1 of the utensil by a pressure plate 3 connected to the wall by bolts 4, the plate 3 is initially convex relatively to the surface of the heating element so that the deformation produced by tightening up the bolts 4 holds the centre of the heating element securely against the wall of the container. The plate 3 is preferably formed of a steel alloy having 15 per cent of carbon, 17À5 to 18À5 per cent of chromium and 7.5 to 8À5 per cent of nickel. Specification 356,305, [Group XXII], is referred to.
Patent GB-126236-A (GB)
Title: Improved Process for Decorating Articles Made of Indiarubber.
Inventor: LEHEUP CHARLES ELWIN
IPC: B29C37/00
Filed: 1918-10-01
Abstract: 126,236. Leheup, C. E. Oct. 1, 1918. India-rubber, ornamenting.-India-rubber articles are ornamented by dipping the article in a solution of coloured rubber, revolving or otherwise moving the article, dropping other colours on to it while in motion, thus causing the various colours to intermingle or spread irregularly, drying the article, and finally vulcanizing. In order to produce irregular stripes or lines, the superfluous colour may be allowed to drain off towards one end or one spot prior to the drying operation. A polished or bright surface may be produced by dipping the article, after it has dried, into a pure transparent rubber solution before vulcanizing; and a variegated matt or roughened appearance may be obtained by dipping the article into one colour, drying, and then dipping it into another colour and revolving or moving it about while dropping other colours thereon.
Patent GB-542889-A (GB)
Title: Improvements relating to ball valves, particularly for use in pumps
IPC: F04B53/12
Filed: 1940-10-31
Abstract: 542,889. Loose-ball valves. ROTHERHAM & SONS, Ltd., and BOLTON, W. C. E. Oct. 31, 1940, No. 15957. [Class 135] A stop for a loose-ball non- return valve comprises a ballengaging, bridging part 24 fast with a ring part 18 which is externally threaded to be adjustably and detachably positioned in the tapped bore in which the ball is to work. The bridge may have a recess 25 shaped to the contour of the ball. The stop may also be secured in its adjusted position by lightly "stubbing " it with a three-cornered chisel or similar tool. Fig. 1 shows the invention applied to the inlet and outlet valves of a pump of the kind described in Specification 264,297, [Class 102 (i)].
Patent GB-858703-A (GB)
Title: Improvements in or relating to terminal connectors for electrical conductors
IPC: H01R31/06
Filed: 1956-05-23
Abstract: 858,703. Two-part connectors; wire end connectors. WEBB, C. D. H. June 19, 1957 [May 23, 1956], No. 16003/56. Class 38 (1) A terminal 11 comprises a metal block 13, e.g. brass or copper having an internally threaded hole 14 for receiving a conductor which is crimped therein, serrated jaws 17 gripping the conductor insulation. In the assembly shown (Fig. 1) a pair of terminals is inserted into a socket 12 and each retained therein by the engagement of the ends of the arms of a clip 21 secured to the block 13 in slots 25 in the socket. The socket 12 is received in a channel 27 and retained therein by the engagement of deformed corners 29 of the channel in cut-out portions 31 in the socket 12, tongues cut from the channel projecting through apertures in the socket engaging terminals 11 and assist in providing a low resistance path. Alternatively a number'of depressions may be provided in the socket to engage the terminal connectors, and the connectors may be wholly or partly of circular cross section. The assembly may be surrounded by an insulating sleeve.
Patent GB-724742-A (GB)
Title: Compositions which comprise polymerised trifluoro-chlorethylene
Inventor: FUCHS OTTO
IPC: C08K5/01
Filed: 1953-06-11
Abstract: Compositions suitable for coating and for the manufacture of films comprise polytrifluorochlorethylene which may be dissolved in a solvent, and a hydroaromatic hydrocarbon of the cyclopentane, cyclohexane, menthane, camphane, pinane, or diterpene series which contains at least one carbon-carbon double bond and at least one alkyl, alkylene or alkylidene radical.  Specified hydrocarbons are dipentene, dicyclopentadiene, beta-pinene, camphene, vinyl-cyclohexene, methyl-cyclohexene, phellandrene, terpinolene, and methyl-cyclohexadiene.  Solvents mentioned are 1 : 2 : 3-trifluoro - pentachloropropane and o - chlorobenzotrifluoride.  Films may be made by spraying solutions on to an aluminium foil and subsequently removing the foil by dissolving it with dilute hydrochloric acid.
Patent GB-597398-A (GB)
Title: Improvements in or relating to valve seats
IPC: F16K1/46
Filed: 1944-08-28
Abstract: 597,398. Making compound valves. THOMPSON PRODUCTS, Inc. Aug. 28, 1944, No. 16307. Convention date, Aug. 16, 1943. [Classes 83 (ii) and 83 (iv)] [Also in Group XXIX] Contracting and stretching rings ; drawing.-A valve seat insert, particularly for the valves of internalcombustion engines, comprises inner and outer rings 14, 15 with interengaging annular and complementary teeth 17, 18, Fig. 1. The rings are initially made with the outside diameter of the inner ring smaller than the inside diameter of the outer ring, as shown in Fig. 2, so that they can be placed together and the outer ring then contracted by forcing it through a die block 26 as in Fig. 4, or the inner ring expanded by a punch 34 as in Fig. 7, to cause the teeth to mesh. The assembly is then pressed into a recess 13 around the valve passageway and the inner seat ring held against axial movement, but allowed a small amount of radial movement relative to the outer ring by reason of a small clearance X provided between the tapered sides of the teeth. A stripper 38 is provided, Fig. 7, to remove the insert from the punch after the expanding operation.
Patent GB-356115-A (GB)
Title: Improvements relating to flat knitting machines
IPC: D04B15/70
Filed: 1930-05-27
Abstract: 356,115. Knitting- machines. CLAES & FLENTJE GES., M³lhausen, Thuringia, Germany. May 27, 1930, No. 16381. Convention date, May 27, 1929. [Class 74 (ii).] The needles of a parallel machine are selected for patterning by a jacquard device of the kind used in weaving looms. A jacquard hook 5 is provided corresponding to each knitting-needle, and the threads or like tension members 6 forming the harness field are so brought together that the hooks 5 and jacquard needles 3 therefor can be controlled by a small pattern card in which the pattern holes are arranged in rows one behind the other. The cards can therefore be made of paste-board or other easily-perforated and light material. The hooks 5 are connected in readily detachable manner to the threads 6 by spring fastening members 89, the latches of which may be opened simultaneously by cam members 86 to allow the threads of one row to be transferred to the hooks of another row. The cards 1 may be used to control, for patterning or other purposes, the yarn guides, needle cams, &c., in addition to controlling the knitting-needles, or alternatively a separate jacquard device or other pattern means may be provided for controlling the yarm guides &c. The threads 6 are tensioned by means of bars 82 carried at the ends of levers 81 pivoted so that the bars rest on the threads 6. The threads 6 are preferably secured to levers, e.g. 94, Fig. 13, which move the knitting-needles or jacks against the action of a bar 49 so that the butts of the knitting-needles 38 or jacks 39 are brought into or removed from the path of patterning cams.
Patent GB-854672-A (GB)
Title: Preparation of 12ª‡-halo-16ª‡,17ª‡,21-trihydroxy-4-pregnene-3,11,20-triones and 16ª‡,21-acyl esters thereof
IPC: C07J5/00
Filed: 1958-05-22
Abstract: The invention comprises steroid compounds of the general formula: <FORM:0854672/IV(b)/1> wherein X represents a halogen atom, R represents an alkanoyl radical containing up to 6 carbon atoms and R1 represents hydrogen, or R and R1 both represent hydrogen atoms or alkanoyl radicals containing up to 6 carbon atoms by reacting steroid compounds of the general formula:  <FORM:0854672/IV(b)/2> wherein R has the above significance, with a mild oxidising agent in the presence of water and an organic solvent such as osmic acid or a dilute solution of potassium permanganate to form compounds in which R is the alkanoyl radical and R1 is hydrogen, and if desired hydrolysing these compounds or acylating these compounds to form compounds in which R and R1 both represent hydrogen or the alkanoyl radicals respectively.  In the examples the following compounds are prepared:-16a , 17a , 21-trihydroxy-12a -bromo-4-pregnene-3, 11, 20-trione and the corresponding 21-acetoxy and 16a , 21-diacetoxy compounds.ALSO:Pharmaceutical preparations, such as capsules, pills, tablets, solutions, for injection, ointments and salves, comprise a diluent and a steroid compound of the general formula: <FORM:0854672/VI/1> wherein X represents a halogen atom, R represents an alkanoyl radical containing up to 6 carbon atoms and R1 represents hydrogen, or both R and R1 represent hydrogen atoms or alkanoyl radicals containing up to 6 carbon atoms.
Patent GB-148281-A (GB)
Title: Improvements in or relating to hypodermic syringes
IPC: A61M5/31
Filed: 1920-06-17
Abstract: 148,281. ThesÚe, V. J. M. July 19, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Syringes.-An hypodermic syringe is formed with a small opening 1 in the barrel cap for the escape of air and with openings 2, 3 in the barrel just below the piston when fully retracted so that the syringe may be filled through the opening 3 from a tube 5 without suction, air escaping through the smaller opening 2. The openings 2, 3 are normally closed by a spring band 4 held in a small groove in the barrel.
Patent GB-411293-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/70
Filed: 1933-06-08
Abstract: 411,293. Discharge tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 8, 1933, No. 16470. Convention date, June 30, 1932. [Class 39 (i).] To prevent darkening of the bulb, due to cathode disintegration, of a gas-filled luminous discharge tube having an anode and an incandescent cathode furnished with a substance of good electron-emitting properties, the part of the anode exposed to the discharge is formed with projections, cavities, corrugations or other undulations. In the construction shown, a luminous tube comprises anodes 5 disposed on opposite sides of an oxide-coated cathode 4 and mounted within a glass bulb 1 which contains neon and mercury or sodium vapour. The anodes 5 are as shown in Fig. 2, in the form of corrugated annular plates.
Patent GB-1382335-A (GB)
Title: Flavouring agents
IPC: A23L27/21
Filed: 1972-04-10
Abstract: 1382335 Meat flavour CPC INTERNATIONAL Inc 10 April 1972 16512/72 Heading A2B A flavouring similar to that of meat extract is prepared by performing a Maillard reaction at elevated temperature of at least one saccharide, at least one amino acid, other than the egg component, for example an acid hydrolysed protein, which may have been fortified by monosodium glutamate, and an egg component selected from egg white, egg yolk, and whole egg dispersion, which egg component may be in hydrolysed, in particular enzyme hydrolysed, form. The reaction mixture may include a sulphide component for example the juice from a plant such as cabbage or onion.
Patent GB-708127-A (GB)
Title: Improvements in or relating to non-metallic permanent magnetic bodies
IPC: H01F1/10
Filed: 1951-07-12
Abstract: 708,127. Magnetic compositions. PHILIPS ELECTRICAL INDUSTRIES. Ltd. July 12, 1951 [Sept. 19, 1950; April 23. 1951], No. 16532/51. Class 38(2) A ferromagnetic material suitable for permanent magnets, having a retentivity Br of at least 1200 Gauss and needing a field strength  I H C  for disappearance of the magnetization of at least 700 Oersted, comprises non-cubic crystals of mixed oxides of iron and one or more of the metals (M) barium, strontium and lead. Calcium may replace up to two fifths of these last metals. The crystals are generally hexagonal and may have the structure of magneto-pluinbite, and their permanent magnetic properties are related to the small grain size of the material. The material may have the formula MO6Fe 2  O 3 ; an alternative, Ba Fe 18  O 27 is also described. Up to 40 per cent of impurities may be allowable as a separate phrase. A large number of examples are described in which Fe 2 O 3  and carbonates of M are ground in a ball mill with alcohol (or ethanol) and some or all of the following steps are carried out. These steps are, drying the mixture, sieving. presintering once or twice, mixing with a binder, extruding or moulding into rods which are air dried, and sintering in air for 3-20 min. at a temperature between 900‹ and 1450‹C but preferably above 1100‹C. In producing the BaFe 18 O 27  the method is slightly different and includes sintering in CO 2 . An example is also described in which the Fe 2 O 3  is replaced by actual magnetite. Values of Br (up to 2155 Gauss) and of  I H C  (up to 3900 Oersted) are stated for each example. The pore volume may be less than 15 per cent. The materials, which have high specific resistance, may be used for magnetic recording purposes.
Patent GB-352551-A (GB)
Title: Improvements in or relating to wheels
IPC: B60B1/02
Filed: 1930-02-05
Abstract: 352,551. Detachable wheels. BAKER, F. W., High House, Oldswinford, Stourbridge, Worcestershire. Feb. 5, 1930, Nos. 16574/31 and 16575/31. Divided on 350,918. [Class 144 (i).] A detachable wheel with a bulbous hub 16 of the type having an inner radial flange 5 through which the attachment bolts 13 are usually passed is locked on the outer end of the permanent hub 8 by means of a threaded collar 9 engaging the outer flange 4 of the wheel-hub. A dustcap 19 is secured by bayonet - fastenings 20. The wheel-hub is of the kind described in Specification 350,918.
Patent GB-1510105-A (GB)
Title: Printing
IPC: C09D7/12
Filed: 1974-04-17
Abstract: 1510105 Security printing EMI Ltd 8 April 1975 [17 April 1974] 16699/74 Headings B6A and B6C A document is printed with a design wherein at least part of the design is printed with an ink containing circular magnetic particles, the magnetic particles in at least a selected area being aligned into a pattern of remanence variation. This may be achieved by a printing method in which a design of wet ink is formed on a carrier the particles are subjected to magnetic alignment process to produce the pattern, whilst the ink is still wet, and the resulting wet ink containing the pattern transferred to the document. The viscosity of the ink may be reduced, e.g. by heating, during formation of the magnetic pattern, and increased before transfer, e.g. by cooling. The pattern may be formed by sequential application of two perpendicular magnetic fields, the second of which may be varied to achieve selective orientation. A multitrack recording head may be used to achieve areas of different orientation. Only a selected part of the printing on a document is preferably aligned to protect against forgery, e.g. the down-stroke of a "T".
Patent GB-798861-A (GB)
Title: Extrusion machine
IPC: B29C48/03
Filed: 1955-06-10
Abstract: 798,861. Continuous-discharge mixing- apparatus. KERAMOSTROJ NARODNI PODNIK ZAVOD RUDEHO PRAVA, and SAMEK, J. June 10, 1955, No. 16706/55. Class 86 [Also in Group V] Clay, or other plastic material, is fed through an inlet 4, Fig. 1, into a casing where it is mixed and kneaded by rollers 1, 2, of lenticular, tiangular, or polygonal cross section, in the spaces S, S' between the rollers and the walls of part-cylindrical cavities 3, 11, the material leaving the casing through a shaping nozzle 6, and the rollers have convex surfaces between apex edges E and rotate in the same direction, as shown, clockwise, the arrangement and speeds of rotation being such that at all angular positions of the two rollers there is only a small gap between an apex edge of one roller and the co-acting convex surface of the other roller. The cavity 11 is open to the inlet 4 and the exit 12, but the cavity 3 is open only to the exit 12. The apex edges on roller 2 scrape material off roller 1 and push it towards the nozzle 6, but some of the scraped-off material enters the spaces S<SP>1</SP>. The apex edges on roller 1 scrape material off roller 2 and push it towards the inlet whence with fresh material, it passes into spaces S. The rollers may be of differing shapes, e.g. the smaller one triangular and the larger lenticular. A cylindrical feed roller 5 is provided. Figs. 2 and 3 show modified rollers 1, 2, each roller being axially divided into three sections, the outer sections A, C and A<SP>1</SP>, C<SP>1</SP> being angularly displaced relatively to the central sections B, B<SP>1</SP>.
Patent GB-349781-A (GB)
Title: A method of dechlorinating chlorinated water
IPC: C02F1/76
Filed: 1930-05-30
Abstract: 349,781. Purifying water; filters. MUCHKA, J., 39, Wallgasse, Vienna. May 30, 1930, No. 16732. Convention date, Aug. 14, 1929. [Class 46.] In an apparatus for dechlorinating chlorinated water by active carbon, &c., the carbon is sterilized during the dechlorinating process by being circulated in the presence of chlorinated water. A deep bed of granular carbon 11 is contained in a closed vessel 1. The chlorinated water enters through a pipe 4 by way of a gutter 3, flows through the carbon, and is removed by a perforated pipe 6. The bed 11 is of sufficient depth to remove all the chlorine before the water reaches the pipe 6, so that the part 12 acts as a reserve. In order to sterilize the carbon a nozzle 7 is provided on the pipe 4 which sucks water and carbon through a pipe 8 from the reserve 12 and returns them to the top of the bed 11. While in the pipe 8 the carbon is brought into contact with the incoming chlorinated water and is thereby sterilized. A non- return valve 10 is provided to prevent the incoming water from entering the part 12. The vessel 1 is of such a shape that the carbon always falls freely through it. In an alternative form the pipe 4 is situated below the vessel 1, and a byepass to the nozzle 7 is provided to regulate the amount of carbon sucked in. In a further modification the chlorinated water is supplied directly through a pipe 4a while a subsidiary supply is pumped through the pipe 4.
Patent GB-549759-A (GB)
Title: Shop window display apparatus
IPC: A47F11/00
Filed: 1941-12-30
Abstract: 549,759. Displaying. TOURTEL, J. W. Dec. 30, 1941, No. 16771. [Classes 3 (ii) and 116] The display at a shop window is changed by mounting it so that it can be displaced upward or downward out of sight. Conveniently two superposed display cabinets A, B are combined together, so that when the lower is in position for being viewed from street level, the upper is at the first floor level, and its display can be altered, if desired, while out of sight of the public. When the combine d cabinets are lowered to bring the upper one to street level, the lower is located in the basement, and can then similarly be changed if desired. The movement may be effected by mounting the cabinets on four vertical screws 14 geared through cross shafts 16 to a power shaft 18. In a simplified form the cabinets may comprise two floors only, without enclosing walls or access doors. The electric driving motor may be automatically switched off just before the cabinets reach their top and bottom positions, and means for manually racking them into final register may be provided.
Patent GB-569448-A (GB)
Title: Improvements in vacuum producing apparatus for machines for filling bottles or othercontainers with milk
IPC: B67C3/16
Filed: 1943-10-13
Abstract: 569,448. Vacuum pumps for milkfilling machines. CROWN CORK & SEAL CO., Inc. Oct. 13, 1943, No. 16782. Convention date, Sept. 14, 1942. [Class] 125 (ii)] [Also in Group XXVI] A readily-cleanable vacuum-producing apparatus for filling bottles &c. with milk comprises a circular base-plate 15 with an upwardlyfacing plane surface and a flange 33, an impeller 24 rotatable on said base-plate having a disc portion 43 closely spaced above the plate with upstanding spiralled vanes 54 and with a non- vaned portion extending beyond the outer ends 56 of the vanes, and a cover-plate 26 including a skirt 32 spaced from flange 33 to define an outlet, the cover-plate having a central inlet and having its lower wall adjacent the top edges of the impeller vanes throughout the major portion of their length, the upper surface of the impeller disc and the lower surface of the cover-plate being so angled as to provide a venturi at the position 29, 48 to increase the momentum of the air before it moves past the periphery of the impeller disc. A motor 18 drives the impeller through a shaft 19 held by a cap nut 25. Blocks 34 and latches 37 serve to maintain the coverplate in its proper position. A rotatable milk reservoir is connected by a telescopic pipe 66 to the vacuum-producing apparatus, the position of the lower end of pipe 66 varying with the size of the bottle being filled. Specifications 540,305 and 542,378 are referred to.
Patent GB-274061-A (GB)
Title: Method of preventing boiler scale deposit in steam boilers and the like
IPC: C02F1/48
Filed: 1927-06-24
Abstract: 274,061. Haasz, E. July 6, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Incrustation, preventing. - Boiler scale is prevented by passing an alternating current, which may be one phase of a polyphase current, through the wall of the boiler. Different boilers may be treated by the different phases.