baber/WOPTO huggingface dataset:
Patent GB-992695-A (GB)
Title: Improvements in or relating to gas diffusion recovery apparatus
IPC: C01B3/50
Filed: 1961-06-07
Abstract: <PICT:0992695/C1/1> <PICT:0992695/C1/2> Hydrogen may be separated from a hydrogen-nitrogen mixture in a diffusion purification apparatus comprises an effectively U-shaped chamber, a plate closing the end of each limb of said chamber, a plurality of open-ended unitary U-shaped diffusion tubes disposed within said chamber and arranged so that one limb of each diffusion tube extends along one limb of the chamber and the other limb of each diffusion tube extends along the other limb of the chamber, the end portion of each limb of said diffusion tubes being secured in the plate closing the end of the corresponding limb of the chamber, an inlet chamber communicating with the open ends of the limbs of the diffusion tubes extending along one limb of the U-shaped chamber, an outlet chamber communicating with the open ends of the other limbs of the diffusion tubes, a gas inlet communicating with said U-shaped chamber adjacent the end of one limb of said chamber, a gas outlet communicating with said U-shaped chamber adjacent the end of the other limb of said chamber, and means for heating said diffusion tubes to 600 DEG  C. The gas flow through the diffusion tubes may be counter-current to that through the U-shaped chamber and, advantageously, the gas from the output chamber may, after passage through a pressure reducer, be utilized as stripper gas for the U-shaped chamber and as such is applied to the gas inlet of said chamber.  Figs. 1 and 2 illustrate embodiments of the invention, the former employing a heating coil 24 and the latter a preheater 56 as the heating means. Specified diffusion tubes are constructed of palladium or palladium-silver alloy.  Specification 975,819 is referred to.
Patent GB-1477852-A (GB)
Title: Liquid delivery apparatus
IPC: G07F5/22
Filed: 1974-05-09
Abstract: 1477852 Liquid delivery apparatus FORECOURT AUTOMATION Ltd 9 May 1975 [9 May 1974] 20610/74 Heading G4V A liquid dispensing control apparatus comprises switching means operable to establish a credit of a predetermined monetary value, a pulse generator arranged to be enabled in response to operation of said switching means to generate a pulse train, a store counter arranged to be advanced by pulses of said pulse train, a pricing unit arranged to compare the number of pulses in said pulse train with preset pricing signals representative of the volume of liquid to be dispensed for the minimum value of credit which can be established and which is arranged to deliver an output pulse in response to every receipt of the number of pulses which represents said volume of liquid, a counter responsive to the application thereto of a number of said pricing unit output pulses corresponding to the established credit to inhibit said pulse generator, said store counter yielding a supply-enabling signal when the number entered thereon exceeds zero by a predetermined amount and means responsive to received pulses representative of the volume of liquid dispensed for decreasing the number entered in said store counter. Windows 8 and 9 display the volume of liquid that has been paid for and the volume of liquid that has been delivered through nozzle 3 respectively. A liquid supply 11 is connected by pipe 10 to casing 1. Liquid supply is controlled by an electrically actuated valve 12; or a pump. From the valve liquid passes to flow meter 13 which delivers signals on channel 14. A currency receiving unit 15 controls a pricing unit 16 where signals representative of the value of inserted coins are processed with signals from preset switches 17 to develop further signals representative of the volume which has been paid for. These signals are fed into store 18 giving a count representing the number of units to be delivered. The store counter supplies a signal on channel 20 to open valve 12. Meter 13 supplies pulses which reduce the number stored in store 18. Credit display 19 is reduced and display 21 advanced. When the store reaches zero valve 12 is closed. Preferably the supply enabling signal is developed only when the number entered in the store counter is not less than a predetermined minimum but to be maintained until said number is returned to zero. A flow-reducing signal may be produced when the number entered in the counter falls below a predetermined number. Credit is limited to the store counter capacity. There may be a supply inhibiting signal at the end of a predetermined time interval after the establishment of credit.
Patent GB-345905-A (GB)
Title: Improvements in or relating to hinged covers for ventilating and like openings
IPC: B60H1/26
Filed: 1930-07-08
Abstract: 345,905. Ventilators. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.- (Assignees of Trauvetter, G. ; 25th Street, Philadelphia, U.S.A.) July 8, 1930, No. 20657. Convention date, July 9, 1929. [Classes 20 (iii) and 137.] A hinged cover for a ventilating opening in a vehicle wall or the like is provided with an actuating and hingeing device comprising a handle 24, two curved extensions 21 to take a hinge pin, and a flat 19 adapted to be spot-welded to the cover. The cover may, as shown, be mounted in a casing 15 between the outer and inner panels 12, 14, having lugs 22 to support the hinge pin. The cover is sprung into the open and shut position by a bowed spring 30 having inturned ends engaged in apertures 28 in the handle and held in a recess 33 of the casing 15 at the opposite end by a bracket 34.
Patent GB-516894-A (GB)
Title: Improvements in treating soya
IPC: A23L11/30
Filed: 1938-07-12
Abstract: 516,894. Treating soya beans &c HORVATH, A. A. July 12, 1938, No. 20673. Convention date, July 28, 1937. [Class 58] Soya beans or the meal or flour derived therefrom are treated with carbon dioxide or air, or a mixture of carbon dioxide and air or oxygen at a temperature of not more than 40‹C. so that the gas is absorbed, the absorbed gas being subsequently expelled to remove volatile flavouring or odoriferous substances. The pressure of the gas during absorption may be atmospheric or higher. The temperature may be raised and the pressure reduced to promote the expulsion of the absorbed gas. When air alone is used higher pressures, up to 60 atmospheres, may be employed to facilitate its absorption. The bean may be dry or soaked with water and the carbon dioxide may be employed in solution in benzene, methylacetate and ether. The heating may be by hot air or steam or by contact with hot rolls or other hot surfaces. The bean may be degermed or hulled prior to the treatment.
Patent GB-656204-A (GB)
Title: Improvements relating to pyrophoric lighters
IPC: F23Q2/44
Filed: 1949-08-29
Abstract: 656,204. Frictional igniters. BATE, B. DIXON-. Aug. 29, 1949, No. 20681. '[Class 75(iii)] To facilitate pipe-lighting a pyrophoric lighter is additionally provided with a vaporizing tube b, the upper apertured end of which is heated by the flame of the wick a while its lower end is in communication with the fuel space, said tube b being mounted in and spaced from an insulating tube c so that it is rapidly heated when the wick a is ignited, whereupon combustible vapour issues from its aperture and is, lit by the wick flame. The tube b may contain absorbent material and is preferably curved over the wick. The tube c does not communicate with the fuel space and its flame aperture is arranged in the side thereof. The wick cap covers both the wick and the tube.
Patent GB-1211477-A (GB)
Title: Improvements in brakes for vehicles
IPC: F16D63/00
Filed: 1968-05-02
Abstract: 1,211,477. Disc brakes. GIRLING Ltd. 7 May, 1969 [2 May, 1968], No. 20747/68. Heading F2E. In a disc brake wherein at least one disc 10 rotatable within a stationary housing 13 is adapted to be moved axially into frictional engagement with a stationary surface 19 by an hydraulically-operated annular piston 15 working in an annular recess in an end wall 17 of the housing, the disc or discs has or have a cylindrical peripheral surface 29 adapted to be engaged by a brake band 31. As shown, a non-rotatable pressure plate 14 provided with a heat-insulating ring 22 is disposed between the piston and disc 10, the latter being slidably keyed on a rotatable shaft 12 and provided on each side thereof with rings 11 of friction material. The brake band 31 is tightened around the disc by a triangular plate 32 on a rotatable shaft 33 actuated by a hand lever. Automatic adjustment to compensate for wear of the friction surfaces is provided for by screws 25 having steep pitch, multi-start threads which upon application of the brake, are forced through the disc a distance equal to the wear and on release of the brake return to a fresh position defined by engagement of the screw heads 27 and abutments 28; reverse rotation of the screws is prevented by spring clips or ratchet devices. In a modification, a second non-rotatable plate is located between two axially movable discs.
Patent GB-135968-A (GB)
Title: Improvements in the Recovery of Lead and Silver from Sulphide Ores and Metallurgical Products.
IPC: C22B13/02
Filed: 1918-12-12
Abstract: 135,968. Amalgamated Zinc (De Bavay's), Ltd., and Ganelin, S. Dec. 12, 1918. Lead, silver, arsenic, antimony, tin, and zinc-sodium chlorides.-Complex sulphide ores containing lead and silver are roasted, with agitation at about 400-500 C., and out of contact with air, together with a chloride, such as zinc chloride, equivalent to the lead, silver, arsenic, antimony, and tin present; or a double sodium-zinc chloride may be used in equivalent quantity. Any arsenic, antimony, and tin is volatilized as chloride. The lead and silver are extracted from the residue with suitable leaching-solutions, taking precautions against the reversion of the chlorides into sulphides in the leaching operation. These precautions may be (1) mechanical, for instance using cold solvent and allowing a short time of contact between the leaching solution and the ore, as by percolation through thin layers, or (2) chemical, for instance by adding to the leaching solution, such as brine (which may be hot), a reagent which prevents the reversion, for example small proportions of hydrochloric acid or an acid salt such as aluminium chloride, or small proportions of oxidizing or chloridizing substances such as ferric chloride or sulphate, cupric chloride, or per acids; or by coating the sulphides present in the roasted ore with sulphur by agitating with free sulphur or by a preliminary treatment with dilute ferric or cupric chloride. Lead and silver chlorides may be extracted together by cold brine or sodium thiosulphate, using the solutions to percolate through thin layers of the ore. Lead chloride alone may be extracted by hot brine containing some zinc chloride, the silver being then extracted by a cyanide or by brine containing ferric chloride; or the lead may be extracted by hot water, and then the silver by a. solvent with a short time of contact. When lead chloride is extracted by a hot solution, it is separated by cooling and then dried and added to a bath of melted zinc chloride containing some lead, to which metallic zinc is added from time to time. Metallio lead is withdrawn from time to time when there is an excess of lead chloride, and zinc chloride when there is an excess of zinc. When lead chloride is extracted in cold solution, metallic zinc is added to the solution, and the spongy lead thus obtained is melted in a bath of melted zinc chloride. Leaching-solutions containing sodium and zinc chlorides, when no longer required, are evaporated to separate sodium chloride, and then further evaporated to obtain the double salt. A roasting-apparatus is described consisting of a tube 1 heated externally by gas flames 2 and having a rotary shaft 3 with stirring and propelling blades 4, a gas outlet 11, and ore outlet 9 leading to a chamber 10. A thermometer 14 is also provided.
Patent GB-402190-A (GB)
Title: Improvements in, or relating to, kettles or the like
IPC: A47J27/022
Filed: 1932-07-23
Abstract: 402,190. Kettles &c. HILL, S. L., and FORD, F., (Representatives of NEWEY, H. R.), 82, Malmesbury Road, Small Heath, and BLOOMER, F. C. M., 40, School Road, Hall Green, both in Birmingham. July 23, 1932, No. 20761. [Class 66.] Kettles, saucepans and like vessels of the kind in which the bottom is provided with a shallow water-heating chamber communicating with the body portion proper are fitted with an external perforated skirting which is curved inwardly below the vessel to form a support therefor and provide with the bottom an annular space through which the flame gases &c. from the heater circulate. In the form shown in Fig. 1 the heating chamber c is formed by a perforated plate b disposed above the bottom a which is formed with a deep channel a<2> enclosed or substantially surrounded by the skirting d<3>. In the construction shown in Fig. 3 the heating chamber is afforded by an annular perforated plate b disposed above the marginal part of the bottom a.
Patent GB-208570-A (GB)
Title: Improvements in and relating to shuttles for use in weaving looms
IPC: D03J5/08
Filed: 1923-04-30
Abstract: 208,570. Cass, A., Edden, J., and Tuttiett, T. April 30, 1923. Shuttles. - When the shuttle peg 10, split as shown, is lowered in the shuttle the two portions 10, 10<a>, are positively forced apart by a beak member 8, thus securing the cop firmly. When the peg is raised the sides of the shuttle recess, having inwardly tapering walls as shown at 14, Fig. 4, bear against the halves of the peg and force them together so that a cop may be easily placed on the peg. A spring-pressed plug may be used to bear against the ends of the peg to maintain it in its raised or lowered position.
Patent GB-1507924-A (GB)
Title: Vehicle headlamps
IPC: F21V19/00
Filed: 1975-05-16
Abstract: 1507924 Vehicle headlamps ROBERT BOSCH GmbH 16 May 1975 [20 Nov 1974] 20785/75 Heading F4R During heating or cooling of an incandescent lamp 17 in a headlamp air can transfer between the inside and outside spaces 37, 38 of an enclosed reflector assembly, to equalize the pressures, through a channel 26 between doublelip portions 25 of a sealing ring 24. As shown, the channel 26 communicates with these spaces via bores 28 and an aperture 27 in the top and bottom, respectively, of the assembly. The seal 24 is held in a retaining ring 21 which engages a neck 13 on the reflector apex at a bayonet-type joint. The lamp 17 is located by a spring clip 20 which engages the ring 21, also as a bayonet connection. A soft rubber cap 31 closes the rear of the headlamp and snaps over the periphery of the retaining ring 21. A window 30 in the ring 21 connects with an annular channel 29 and the bores 28. The seal ring 24 is preferably of hydrophobic material to minimize misting-up and dust particles may be entrained by baffles within the channel 26 (Figs. 3, 4, not shown).
Patent GB-164373-A (GB)
Title: Improvements in and relating to telegraphic receiving perforators
IPC: H04L15/32
Filed: 1919-08-25
Abstract: 164,373. Eastern Telegraph Co., Ltd., Fraser, A., Wood, K. L., and Smith, E. C. Aug. 25, 1919. Clutches, ratchet.-A clutch for use in a telegraphic receiving perforator is formed of a disc l, Figs. 8 and 9, clamped to the driving-shaft a by a screw n, and provided with an annular groove p in which a shoe q pivoted to a lever s is adapted to operate. The lever s is fulcrumed on a screw t on the boss u which is freely mounted on the shaft a, and furnished with four arms v. The outer end of the lever s has a slot x that is entered by an arm y projecting from the driven sleeve and is also connected to the boss u by a spring 2 which tends to urge the shoe q into the grooves p, but is prevented from doing so by the arm y. The shaft a and the disc l are constantly driven, but the boss u is prevented from rotating by the detent 1. When a detent is withdrawn, the boss u is turned by the spring 2, and the shoe q contacts with the disc l, which now drives the boss u whose lever s meeting with the resistance of the sleeve through the arm y, causes the shoe q to be forced into close contact with the disc l. The sleeve is driven a quarter of a revolution, after which the next leg v engages the detent 1 and arrests its rotation.
Patent GB-221334-A (GB)
Title: Improvements in and relating to coating compositions
IPC: C09D195/00
Filed: 1923-08-16
Abstract: 221,334. British Thomson-Houston Co., Ltd., (Genera! Electric Co.). Aug. 16, 1923. Emulsions, making. - An alkaline solution of sugar is added to a japan comprising a suspension in water of oleaginous and asphaltic materials to form a stable emulsion. The japan may be made as described in Specification 121,533. Specifications 155,398 and 155.427 also are referred to.
Patent GB-645360-A (GB)
Title: Telephone auxiliary amplifying device
IPC: H04M1/215
Filed: 1947-07-31
Abstract: 645,360. Substation equipment. McWANE, A. T. July 31, 1947, No. 20877. Convention date, March 1, 1946. [Class 40 (iv)] In an auxiliary telephone device of the kind on which a telephone handset is rested so that it may be coupled to a loud-speaker 24 and a sensitive microphone 34 for working at a distance, an induction coil for conveying signals in the handset receiver 16 to the loudspeaker 24 and a second speaker for acoustically coupling the sensitive microphone 34 to the handset transmitter 28 are both located within the same casing together with the necessary amplifiers.
Patent GB-598331-A (GB)
Title: Process for the production of chromium powder, or mixed or alloyed powders containing chromium
IPC: B22F9/30
Filed: 1945-08-14
Abstract: A process of making chromium powder includes the steps of heating anhydrous chromium chloride in an atmosphere of ammonia at a temperature between 500 DEG  C. and 650 DEG  C., preferably 520-600 DEG  C. to form chromium nitride, and thereafter decomposing the nitride by heating at a temperature between 1100 DEG  C. and 1600 DEG C. in a non-oxidizing atmosphere or a vacuum.  Preferably excess ammonia is used in the nitriding operation to avoid the formation of free hydrochloric acid, the ammonium chloride formed being sublimed and condensed apart from the chromium nitride, ammonia being regenerated by reaction with lime.  The chromium nitride is preferably crushed prior to the denitriding step.  Mixed or alloy powders containing chromium may be formed by carrying out the process on a mixture of chlorides of the metals required.
Patent GB-192428-A (GB)
Title: Improved means for supporting curtain rods and the like
IPC: A47H1/142
Filed: 1921-08-06
Abstract: 192,428. Clarke, T. E. Aug. 6, 1921. Clip and like brackets; stair-rod eyes.-In stair-rod eyes and brackets for supporting rods &c. of the kind comprising one or more brackets secured to a base, and a collar, band, clip or like fitting adapted to secure the rod &c. to the bracket, the clip is U-shaped and open at the sides, and is slidable in a slct or slots in the bracket for purposes of insertion and removal. In the application to a curtain rod, Figs. 1 to 3, the removable clip d is formed with enlargements f at each end which are inserted in apertures g in the bracket a and slide in a slot h or two keyhole slots therein. Either a spring i, Fig. 1, or a pivotal cam plate l, Fig. 4, may be provided to retain the clip in place. Fig. 8 shows the application to a stair-rod. In a modification, Fig. 11, the clip d is not removable. One end is provided with a slot m which slides on the bracket, while a projection on the other end slides in the slot. In this case the clip is preferably provided with an extension d'.
Patent GB-217872-A (GB)
IPC: A63F9/00
Filed: 1923-08-17
Abstract: 217,872. Zipperle, E., and Neumann, L. June 23, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Games of chance.-Appliances for playing a game comprise one or more light objects adapted to be moved over a playing board by the electrostatic action of a transparent sheet which is arranged parallel to the playing board and is electrified by friction. As shown, a cardboard box a is provided with a transparent celluloid top b, and encloses a paper arrow c which may be caused to move by rubbing the celluloid with the hand. The bottom of the box is covered by a sheet f wound on rollers g and marked to form a series of playing boards. The playing surface may be electrically conducting.
Patent GB-602011-A (GB)
Title: Process for the manufacture of nitriles
Filed: 1945-08-15
Abstract: Catalysts for use in the preparation of nitriles from hydrogen cyanide and an acetylene (see Group IV (b)) comprise a mixture of compounds of elements selected from magnesium and elements of Group II B of the Periodic Table, in particular a mixture of the oxides of magnesium and cadmium.  Examples describe the preparation of mixed cadmium and magnesium oxide catalysts comprising co-precipitating cadmium and magnesium hydroxides from a solution of their chlorides by means of caustic soda, washing the hydroxides and mixing them with iron balls in a reaction tube and drying in situ to form a dry amorphous solid.  Cadmium oxide may comprise 5 to 50 per cent of the total oxides.ALSO:Unsaturated mono-nitriles and/or saturated di-nitriles are prepared by heating acetylene or its alkyl or aryl substitution products with hydrogen cyanide at a temperature below 500 DEG  C., in the presence of a catalyst which is a compound or mixture of compounds of elements selected from magnesium and the elements of Group IIB of the Periodic Table, and recovering the nitriles so formed.  The preferred catalysts are compounds of magnesium and cadmium, in particular a mixture of their oxides, or products formed therefrom during the reaction, wherein desirably the cadmium oxide comprises 5 to 40 per cent of the total.  The temperatures are generally between 300 DEG  and 500 DEG  C. Formation of the mono- or dinitriles may be favoured by suitable adjustment of reaction conditions.  Examples describe the preparation of mixtures of acrylonitrile and succinonitrile and methacrylonitrile and methyl succinonitrile from hydrogen cyanide and acetylene and methyl-acetylene respectively, the catalysts comprising a mixture of cadmium oxide and magnesium oxide in various proportions in admixture with iron balls.  The preparation of the catalysts is given (see Group III).  Ethyl acetylene is also mentioned as a starting material.
Patent GB-650136-A (GB)
Title: Detachable pouring spout
IPC: B67B7/48
Filed: 1948-08-09
Abstract: 650,136. Opening cartons; spouts. FENGLER, T. H. Aug. 9, 1948, No. 20986. Convention date, Feb. 9. [Classes 18 and 66] An opening is pierced along a top edge of a carton A by a blade 10 with an inwardly turned point 5, the blade being secured at 3 to a pouring-spout 12 and spaced from it so that the side wall C' of the carton may enter between the blade 10 and a shield 1, as the cutter is pressed into the carton, a shoulder 6 acting as a stop against the top of the carton. Grooves 7 in the sides of the blade 10 encompass the edges of the flaps B, D at the top of the carton for securing the spout in place during pouring the contents, e.g. soap powder.