baber/WOPTO huggingface dataset:
Patent GB-1017596-A (GB)
Title: Improvements in or relating to methods of testing gases for the presence of chemical substances
IPC: G01N1/24
Filed: 1962-06-21
Abstract: 1,017,596. Detecting gases. O. H. DRAGER, [trading as DRAGERWERK HEINR.& BERNH. DRAGER]. June 21, 1962 [Sept. 21, 1961], No. 23999/62. Heading G1B. A method of testing a gas for an impurity comprises passing a sample of the gas through a detector tube at a volume flow rate in a range over which the length of the colour change zone in the tube is independent of the volume flow rate. The gas is passed at a rate between 60 to 100 litres per hour through the tube 1 which has an internal diameter of between 5 to 8 mm. In the apparatus shown air containing an impurity to be detected is drawn through the tube 1, which contains a granular bed of a material providing a colour indication of the presence of the impurity by operation of a bellows pump 4. The pump has end plates 6, 7 which are squeezed together against the action of springs 8, air being expelled from the bellows 5 through a non-return valve 9. On releasing the pump, the springs 8 cause the bellows to expand and air is drawn through the tube 1. The pump is constructed to give the desired flow rate and the apparatus may be used with a CO detector in hydrogen used for gas hydrogenation, or with an ammonia detector after decomposition of ammonia for hydrogenation.
Patent GB-985863-A (GB)
Title: Improvements in metallurgical converters
IPC: C21C5/42
Filed: 1961-07-03
Abstract: 985,863. Metallurgical converters. YAWATA IRON & STEEL CO. Ltd. July 3, 1961 [July 2, 1960], No. 24007/61. Drawings to Specification. Heading F4B. A metallurgical converter has a smooth curved internal surface of which the section in plan and elevation is elliptic and in end view is circular, a part at one end of the horizontal axis, and an oxygen lance inserted through the port at an angle to the horizontal axis. The lance may be deflected to either side of the axis to an angle less than 40 degrees. It is stated that the arrangement results in a favourable movement of the metal.
Patent GB-1077082-A (GB)
Title: Method and apparatus for the continuous electrolytic treatment of the inner and outer surfaces of tubes
IPC: C25D7/04
Filed: 1964-06-10
Abstract: <PICT:1077082/C6-C7/1> In a method for continuous electrolytic treatment of the inner and outer surfaces of tubes with internal diameters of down to 0.12 inch, the tube 1 is threaded upon a wire and passed continuously there along through successive baths, (4), (5), (7) Fig. 1 (not shown) for preliminary treatment, 10a, 10b for electrolytic treatment and (16), (17) for subsequent treatment, by means of guide rolls (3a), (3b); (6a), (6b); 8a, 8b etc., those adjacent the electrolytic baths 10a, 10b also serving to connect the tubes to a source of direct current. Electrodes 14a, 14b etc. of opposite polarity to the tubes are positioned within the baths 10a, 10b. The length of the tubes is less than two thirds of the length of the electrolytic baths.  The wire passing through the tube is of conducting material but is not connected to a source of current, and during operation of the bath, acts as a dipole, that part within the tube forming the pole of opposite polarity to the tube and that part not covered by the tube forming the pole of opposite polarity to the electrode.  Hence if it is required to electrolytically deposit a metal upon the surfaces of the tube, the electrodes are formed of this metal and during operation metal is transferred from the electrode to that part of the wire not covered by the tube, and from that part of the wire within the tube to the inner surface of the tube.  Hence if a distance of about one tube's length is maintained between successive tubes passing along the wire, the wire forms a constantly replenished electrode for the plating of the inner surface of the tube.  The outer surface of the tube is plated by direct transfer of metal From the electrodes. Fitted upon the wire 20 Fig.3 (not shown) are a plurality of non-conducting or insulated plugs 24 which are in sealing contact with the inner surface of the tube 1. As the tube moves along the wire the plugs act as piston the tube at the leading end and discharging the fluid at the trailing end, thus preventing the mixing of liquids from the successive baths through which the tube passes.  The part of the wire outside the electrolytic baths may be formed by plastic covered wire, connected, but insulated from, the part within the electrolytic baths by a connector 23. The latter part may be formed of a copper core covered with sleeves of the metal to be deposited. Reversal of the polarity of electrodes and tubes provides electro-polishing the tube.  A plurality of tubes may be passed through the apparatus together in a parallel arrangement.
Patent GB-1272718-A (GB)
Title: Compression molding machine
IPC: B30B1/32
Filed: 1970-05-18
Abstract: 1,272,718. Compression moulding machines. U.S. INDUSTRIES Inc. 18 May, 1970 [11 June, 1969], No. 24020/70. Heading B5A. A vertical compression moulding press comprises an upper slide 10 carrying a mould part 8, a lower bed 4 supporting a mould part 5, cylinders 14 holding the slide 10 in its upper position, which cylinders when drained allow the slide to fall rapidly to a lower position, locking catches 16 which grip under heads 11 of pull-rods 12 when the slide is in the lower position, and a plurality of actuating cylinders below the bed 4 each with a piston 28 to move a rod 12 to pull the slide down against a material P through a moulding stroke. Hydraulic fluid is passed to the upper side of piston 28 via a port 29 to force a nut 19 downwards, together with the rod 12 and an air or hydraulic counterbalancing piston 36, through the moulding stroke until the lower face of the piston engages a stop piston 38. After a delay controlled by a timing device, during which curing of the moulding material can take place, fluid is allowed to leak from air outlet 40 below the piston 38, and the piston 28 with the slide 10 moves through a finishing stroke until the stop piston abuts the bottom of a recess 38. After a further delay the slide is lifted to its upper position by the cylinders 14 and the cycle can be repeated. The moulding stroke can be adjusted either by (a) a worm sear 35 which alters the position of the nut 19 with respect to the rod 12, or (b) by rotation of a gear driven collar 45 which acts on and extension 41 of the piston 28 to force the assembly downwards. Fluid can be forced through the inlet 9 to augment this latter adjustment. In Fig. 6, not shown, the press has upper and lower ejectors.
Patent GB-169369-A (GB)
Title: Improvements in or relating to combination boot-polishing outfits
IPC: A47L23/04
Filed: 1920-08-18
Abstract: 169,369. Ellis, E. A. Aug. 18, 1920. Hand-brush outfits; pads. - A boot - polishing outfit comprises a pad having a base provided with depending clips which engage with corresponding sockets, holes, or grooves in the back of a brush stock. In the construction shown in Fig. 1, the pad g is mounted on a resilient base f of metal, plywood, or veneer, which may be bent to enable clips e thereon to enter corresponding inclined slots d in the stock. In another form of invention, the base of the pad is rigid or may be of fabric and is secured to the stock by means of press-button fasteners. In the construction shown in Fig. 5 the base of the pad g has depending studs j adapted to slide in grooves k in the brush stock and to be secured in position by a brad m.
Patent GB-798381-A (GB)
Title: A method and apparatus for supplying liquid fuel to a burner or other appliance
IPC: F23C99/00
Filed: 1955-08-22
Abstract: 798,381. Supplying liquid fuel to burners. BAIER, O., BAIER, S.. BAIER, L., BAIER, W., BAIER. W., and SCHLUMPRECHT, E., [trading as BAIER KOMM-GES. WEBASTO-WERK, W.].. Aug. 22, 1955 [Aug. 23, 1954], No. 24125/55. Addition to 788,161. Class 75(1) The arrangement for supplying a burner with liquid fuel from a level higher than that of the supply tank of the parent Specification, is modified so that a section of the riser is disposed at a level lower than the lowest level in the fuel tank and is heated by the burner to such a temperature that partial vaporization of the fuel causes fuel to be discharged from an outlet at a higher level than the level in the fuel tank into an overflow reservoir from which fuel is supplied to the burner at a constant pressure head. Liquid fuel from a tank 11 is fed through pipes 8, 9 to a pipe 10 located in a pot-burner 3 where the pipe 10 is heated and the fuel partially vaporized and passed into a reservoir 7. The fuel in the reservoir 7 passes through a down-pipe 6 to a chamber 4 where it is vaporized and fed to the burner 3 through a pipe 5. Fuel is maintained at a constant level in the reservoir 7, excess fuel passing through a pipe 13, provided with cooling fins 14, to the tank 11. Fuel vapor from the reservoir 7 passes to the chimney 2 of the apparatus 1. One cut-off valve 16 is provided beneath the tank 11 and another 17 in the pipe 5.
Patent GB-1069250-A (GB)
Title: Oxidation-resistant beryllium articles and process of making
IPC: B05D7/16
Filed: 1965-06-08
Abstract: A process of protecting Be metal against oxidation comprises (a) coating the Be metal to a maximum thickness of 1/32 inch with a slurry comprising a lacquer solution and crushed Be/Si alloy containing from 35 to 50 atom percent Si, (b) heat-treating the coated Be metal at 950-1000 DEG C at a pressure not greater than 10-4 mm Hg, (c) introducing an inert atmosphere of superatmospheric pressure, e.g. of A or He, (d) heating the coated Be metal to a temperature in excess of the liquidus of the alloy but less than 1200 DEG C until the coating has uniformly covered the Be metal, and (e) cooling the coated metal.  The slurry is prepared by mixing Be and Si, arcmelting the mixture obtained, cooling the product, crushing the product, and suspending the product in the lacquer. Nitrocellulose lacquer may be used or a solution of 1% by volume of cellulose acetate butyrate in acetone. Prior to coating, the Be may be etched in an aqueous solution containing sulphuric, phosphoric and chromic acids in concentrations of 7 fl. oz/U.S. gal; 121 fl. oz/U.S. gal.; and 1 lb/U.S.gal. Si/Be alloys containing 33 to 70 atomic percent of Si are referred to but only those containing 35 to 50 atomic percent of Si are suitable for the present invention.
Patent GB-241184-A (GB)
Title: Process for the production of practically iron-free alumina
IPC: C01F7/22
Filed: 1925-09-30
Abstract: Clay or the like is treated with hydrochloric acid so as to obtain a crude solution of aluminium chloride.  The iron is reduced, for instance by sulphuretted hydrogen, and the solution is then evaporated and the residue calcined to decompose the aluminium chloride while excluding oxygen so that the ferrous chloride is not decomposed.  The solution may be sprayed into a tower or rotary tube furnace where it comes in contact with hot gases having a reducing character, obtained for instance by flameless combustion.  The residue is leached with water containing a little hydrochloric acid which dissolves the ferrous chloride, leaving alumina practically free from iron.  The alumina may be further purified by heating in a current of air containing chlorine or hydrochloric acid to remove the remaining iron.  The Specification as open to inspection under Sect. 91 (3) (a) includes the use of other mineral acids, for instance sulphuric acid may be used followed by sodium chloride.  This subject-matter does not appear in the Specification as accepted.
Patent GB-427248-A (GB)
Title: Improvements in or relating to the production of cellulosic pigments
IPC: C09B63/00
Filed: 1934-08-24
Abstract: A process for the production of cellulose pigments suitable for paints, printing inks, printing of wall paper or colouring of plastics, includes the step of regenerating the cellulose in a finely divided form from a solution of a soluble cellulose derivative in the presence of or with the subsequent addition of a solution of a dye which is stable to hydrolysis and which has an affinity for cellulose, but which is other than an ester salt of a body, yielding by oxidation a coloured compound.  In a preferred form, the cellulose is regenerated by heating an alkaline aqueous solution of an alkali soluble salt of a cellulose mono-ester of a dicarboxylic acid, for example sodium cellulose phthalate, in the presence of excess alkali to a temperature high enough to hydrolyze the ester, for example above 50 DEG  C.  The regenerated cellulose may be filtered.  The dye solution may be present during the regeneration, or may be added subsequently to the regenerated cellulose suspension, or the cellulose may be separated and separately treated with the dye.  The term "solution of a dye" covers solutions not only of dyes as such, e.g. direct azo dyes but also of the leuco vat dyes.  Specific examples are: (1) To a solution of 5 parts of Ponsol Blue GD, 6,4 parts sodium hydroxide and 5 parts sodium hydrosulphite in 1000 parts of water at 50 DEG  C. is added a solution of 21 parts of sodium cellulose phthalate in 1000 parts of water, and the whole is heated to 90 DEG  C. with the addition of a further 10 parts of sodium hydroxide. When hydrolysis is complete, the product is cooled, filtered, and washed.  To ensure complete oxidation of the dye the product may be suspended in water through which air is passed or oxidizing agents such as mixtures of acetic acid and sodium or potassium bichromate, sodium perborate or hydrogen peroxide may be employed. Other similar examples are given employing alkaline solutions of ethyl cellulose hydrogen quinolate or cellulose benzoate hydrogen phthalate with a variety of other vat dyes, and of sodium cellulose phthalate with azo and sulphur dyes.  Especially advantageous results are obtained with cellulose mono-ester of dicarboxylic acids which form inner anhydrides, e.g. the mono-esters obtained by reacting cellulose with phthalic succinic, quinolic, maleic or adipic anhydride in presence of a tertiary amine.  Suitable alkali-soluble salts of these mono-esters are sodium, potassium, lithium and ammonium salts.  The desired alkalinity of the solution may be maintained with any of the common alkalies.
Patent GB-1030284-A (GB)
Title: Improved method of manufacturing photosensitive material
IPC: B41N3/03
Filed: 1964-06-12
Abstract: 1,030,284. Photosensitive materials. SPERRY RAND CORPORATION. June 12, 1964 [June 24,1963],No. 24559/64. Heading G2C. A photosensitive material is produced by coating a degreased aluminium support with an aqueous dispersion of colloidal alumina using the brehmite crystal lattice structure, drying this hydrophilic coating and the coating with a photosensitive material e.g. a diazonium compound or a bichromated colloid. In the examples, an aluminium sheet is degreased with toluene and then cleaned with trisodium phosphate and the scum removed with nitric acid. The sheet may be sand-blasted, etched or scratched with a metal brush before degreasing. After cleaning, a solution of colloidal alumina is applied and the sheet dried at 100‹ to 130‹C. before applying an aqueous solution of a diaromic compound diaso resin or as dichromated albumin solution. The sheet may then be exposed imagewise and the non-hardened areas removed to leave a lithographic printing plate.
Patent GB-264426-A (GB)
Title: Improved construction of carriage frame for toy figures
IPC: A63H3/50
Filed: 1926-10-05
Abstract: 264,426. Bing-Werke, vorm. Geb. Bing Akt.-Ges. March 29, 1926, [Convention date]. Mechanical toys.- A toy figure h is detachably mounted on a wheeled carriage, wire loops d, e attached to the wheel axles a, b or to the carriage receiving the limbs of the figure with a spring grip. Where the limbs are flexible, as in the case of inflated figures, the loops are rigid, but, conversely, they are made of spring wire to take rigid limbs.
Patent GB-321996-A (GB)
Title: Improvements in rheostats of the grid type
IPC: H01C3/12
Filed: 1928-08-28
Abstract: 321,996. Walsh, E. Y. Aug. 28, 1928. Resistance grids of wire of the form shown in Fig. 1 are a.ssembled in the usual manner on insulated rods are clamped between end plates N by means of flanged nuts K on the rods which also serve to receive set screws P by which the grid assembly is secured between side plates G of a supporting frame F. Individual grids may be removed by loosening the nuts K.
Patent GB-205955-A (GB)
Title: Process for manufacture of certain alkali salts
IPC: C25B1/14
Filed: 1922-09-13
Abstract: 205,955. Plauson's (Parent Co.), Ltd., (Plauson, H.). Sept. 13, 1922. Non-metallic substances, obtaining. - Alkali carbonates, sulphites, and the like, are obtained by electrolyzing a solution of an alkali sulphate, and allowing the acid produced to react with an insoluble carbonate, sulphite, &c. for instance of calcium, barium, or lead, situated below the cathode, so that the carbonic acid &c. produced combines with the alkali generated by the electrolysis. In one method, the anode, of carbon, coke, graphite, &c. is placed at the bottom of the cell and covered with lumps of the insoluble carbonate. Above the cathode is a porous iron or other cathode through which the alkali carbonate solution is withdrawn; it usually contains some caustic alkali. Fresh sulphate solution is introduced below or through the anode. Barium carbonate may alternatively be supplied in the form of a suspension in the entering liquid. Calcium sulphate may be dried and burnt.
Patent GB-1100234-A (GB)
Title: Electromagnetic sealed relay
Inventor: HAWKINS JACK SHIRLEY
IPC: H01H33/66
Filed: 1965-06-11
Abstract: 1,100,234. Electromagnetic relays. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 11 June, 1965, No. 24752/65. Heading HlN. A relay comprises a hermetically sealed tubular housing 2 formed from a stack of annular ceramic and metal segments 36 and 38. Contact carrying annular flanges 42-48 divide the housing into separate contact chambers. Each chamber, e.g. that between flanges 42 and 43 comprises a metal segment 38 brazed to flange 42, a ceramic segment 36 brazed to the upper segment 38, and a further metal segment 38 brazed to ceramic segment 36 and flange 43. An annular plate 61, clamped between the upper metal segment 38 and a ceramic backing ring 41, is provided with a resilient contact finger of molybdenum carrying a tungsten contact 63. Each movable contact is clamped between adjacent insulating segments of an actuating stem 23 secured to an armature 17. Cylindrical contacts 53 and 58 are secured to flanges 42 and 43. Contact 53 is grooved to provide a contact surface 54 which lies in the same plane as the contact surface 59 of contact 58. The moving contact 63 bridges contacts 53, 58 in the energized position and engages the stop surface 56 of contact 53 in the de-energized position. A baffle 64 carried by the resilient contact finger overlaps a cylindrical shield 52, which surrounds the actuating stem 23, to prevent vaporized contact material from migrating from one contact chamber to another. A single pole double throw relay is also described.
Patent GB-489249-A (GB)
Title: Improvements in and relating to radiation furnaces
IPC: F27D11/02
Filed: 1937-09-10
Abstract: 489,249. Couplings. SOC. ANON. DES MANUFACTURERS DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Sept. 10, 1937, No. 24753. Convention date, Sept. 11, 1936. [Class 38 (i)] [Also in Group XII] In an electric melting-furnace 2 having heating elements 10 mounted within a removable cover V, the elements 10 are carried by graphite members 43 fitting into connectors 8, 9, the former consisting, as shown in Fig. 8, of a block 46 slidable in a tubular guide 45 and surrounded by a flexible air-tight sleeve 48 welded at its ends to the guide 45 and the block 46 respectively. The block 46 has water-cooling passages 50 supplied by a connection 49 and is recessed to receive a socket 51 to which the circuit cable is secured, this socket being retained in position by a spring 52a which bears at one end against an insulator 53 and at the other against a set-screw 54 engaging in a screw-threaded member 55 secured to the cover frame member 42.
Patent GB-426678-A (GB)
Title: An improved device for use in knitting and crocheting
IPC: D04B3/00
Filed: 1933-09-07
Abstract: 426,678. Knitting ; crochet. FOWLER, C., West Street, Leek, Staffordshire. Sept. 7, 1933, No. 24776. [Classes 74 (i) and 74 (ii)] A device for use in knitting &c., comprises a lower disc 1 from which extends a finger ring or clip 2, and an upper disc 3 which is mounted on one or more steady pins 6, fixed to the disc 1. A central screwed pin 7 carries a nut 10 on which is fixed a cover 5. A spring 8, the tension of which can be adjusted by turning the nut 10, is located within the cover.
Patent GB-1091926-A (GB)
Title: Improvements in and relating to the manufacture of sulphuric acid
IPC: C01B17/58
Filed: 1965-06-11
Abstract: Sulphur dioxide and nitrogen are produced when an ammonium sulphite-containing solution, obtained from the washing of the end gas from a sulphuric acid contact plant, is atomized into any type of furnace producing sulphur dioxide whilst maintaining the furnace at over 850 DEG  C. with an oxygen excess of 3-9 volumes per cent.
Patent GB-664015-A (GB)
Title: Improvements relating to relay interrupter circuits in communication installations in particular telephone installations
IPC: H04M19/02
Filed: 1949-09-27
Abstract: 664,015. Electromagnetic interrupters. SIEMENS & HALSKE AKT.-GES. Sept. 27, 1949. [Oct. 1, 1948] No. 24821/49. Class 38 (v). [Also in Group XXXIX] One of the two interacting relays of a relay interrupter has a second winding acting in opposition to the operating winding and by altering the potential across this winding by change-over contacts of switching means the release time of the relay and therefore the speed of the interrupter is altered. As shown in Fig. 1 the interrupter is started by the closure of contacts a, n whereupon J pulls up, switches in winding T, I of the polarised relay T, and reverses the polarity of the voltage on condenser Co. Relay T operates and disconnects J and Co discharges through T I thus prolonging the release time of T which eventually relapses. During the operate time of T a current impulse is transmitted over wire x. The cycle is then repeated until relay U comes up due to the closure of contact n (by means not shown). The second winding T II of relay T is then transferred from the right-hand tapping point of the voltage divider P to the left-hand tapping point thereof and as the potential across the winding is thus considerably increased the release time of the relay is shortened. The interrupter than continues to operate at a faster speed and transmits impulses over wire y.
Patent GB-181644-A (GB)
Title: Improvements in couplings for sparking plug or like terminals
IPC: H01T13/04
Filed: 1921-04-11
Abstract: 181,644. Stevenson, J. I. D., and Stevenson, K. D. April 11, 1921. Two-part couplings. - For detachably connecting the end of a cable a to a sparking-plug or like terminal c, a socket member b, carried by the cable end, is formed with slots adapted to be engaged by springs d secured to the terminal.
Patent GB-1126557-A (GB)
IPC: A61C13/275
Filed: 1966-06-06
Abstract: 1,126,557. Dental bridges. INSTITUTE OF COSMETIC DENTISTRY, Inc. 6 June, 1966 [14 June, 1965; 10 Nov., 1965], No. 25145/66. Heading A5R. A removable dental bridge includes at least one tooth and is provided in combination with a bar 32 adapted to be secured between two natural teeth. The bridge comprising a sleeve 26 adapted to embrace the bar so 'that the bridge is then held in the mouth, the sleeve and/or the bar being formed with serrations to ensure a frictional grip. The sleeve may be of W-section (Figure 17, not shown) and is then adapted to embrace two bars (132). The bar may be bonded between two natural teeth (Figures 5, 6, not shown) or connected to two tooth crowns (134) which are then secured (Figure 15, not shown) to tooth stumps. The serrations may be in various patterns and the sleeve, which is bonded to the bridge using adhesive, may be knurled on its outer surface so as to improve the bond.