baber/WOPTO huggingface dataset:
Patent GB-901661-A (GB)
Title: Improvements relating to apparatus for detecting radio activity in a fluid
Inventor: CHICK DOUGLAS RICHARD
IPC: G01T1/22
Filed: 1959-06-30
Abstract: 901,661. Nuclear reactors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 10, 1960 [June 30, 1959], No. 22455/59. Class 39 (4). Apparatus for detecting fission products in the coolant of a nuclear reactor having a coolant in which Cherenkov radiation is produced, comprises means for passing coolant through a sampling circuit provided with a detector for the Cherenkov radiation and means for delaying the flow through the sampling circuit so that the detector is responsive to the longer lived fission products. In a water-cooled reactor the main activity in the coolant is due to nitrogen 16 and it is necessary to delay the coolant for about three minutes to allow the nitrogen 16 to decay before measuring the activity due to fission products. In Fig. 1, the water coolant passes out of the reactor through a duct 4 to a heat exchanger 5 and then back to the reactor. Some of the coolant is passed to an auxiliary circuit through a pump 7, a delay device 8, and a radiation detector 9 including a photo-cell 10 for detecting the Cherenkov radiation. The output of the photo-cell may be fed to a pulse height discriminator, so that only certain fission products are detected. The delay time may be varied, for example by varying the speed of the pump 7, so that different fission products having different half lives may be detected in accordance with the operating conditions of the reactor. Fig. 2 shows one form of detector comprising an elongated casing through which coolant flows from an inlet 13 to an outlet 14 displaced along the casing to ensure good mixing. The casing should be lined with a material which is a good diffuse reflector because of the directional nature of the Cherenkov radiation, and a photomultiplier is located in a casing 15 at one end looking along the length of the casing. In an alternative arrangement, Fig. 3 (not shown) suitable for a pressurized gas system, the casing is spherical and is provided with three photomultipliers at different orientations connected to a common output.
Patent GB-172356-A (GB)
Title: Improved preparatory treatment of ores or metallurgical products
IPC: C22B3/06
Filed: 1920-07-28
Abstract: 172,356. Imray, 0., (Jackson & Co.). July 28, 1920. Roasting ; treating ores prior to lixiviation and amalgamation, and to remove undesired constituents.-Complex ores or concentrates are treated with an oxidizing-agent, preferably a nitrate or nitrite or a mixture thereof, so as to effect partial oxidation, and the treated mass is thereafter subjected to leaching or amalgama. tion. The ore &c. may be heated with the nitrate &c., in solid form or in solution, or may be treated with the solution and exposed to the action of the air, or the solution may be sprayed on to the heated ore in a furnace. In some cases, before applying the main leaching to the treated mass, a preliminary leaching may he applied for the removal of compounds which destroy or interfere with the action of cyanides. Specifications 2706/82, 7534/01, and 516/07 are referred to.
Patent GB-843578-A (GB)
Title: Improvements in the coating of ferrous articles with aluminium
Inventor: SCHROEDER ALBERT WILLIAM
IPC: C23C4/16
Filed: 1958-07-14
Abstract: 843,578. Coating with aluminium. CHICAGO METALLIZING CORPORATION. July 14, 1958, No. 22512/58. Class 82(2) A method of coating a ferrous metal object with aluminium comprises'cleaning the surface to be coated, spraying with aluminium and then replacing the air in contact with the coated surface with an inert gas such as nitrogen, argon or krypton and finally heating the object in the inert atmosphere to fuse the aluminium to form an impervious coating layer. The coating is preferably 0.003 in.-0.015 in. thick and the heat treatment is effected between 1275‹F. and 1350‹F. for a period between forty-five minutes and twenty minutes. The method is particularly suitable for coating the inside of a ferrous pipe 1 rotatably mounted on rollers 2, a metal wire spray gun 4 being mounted on a carriage 5 for longitudinal reciprocating movement in the rotated pipe. After coating the inside of the pipe, the ends are sealed, the air is replaced by an inert gas and the heat treatment to fuse the aluminium is then effected by means of an electrical induction heating coil. The inert gas is then released and cooling is carried out in ordinary atmosphere. In a further embodiment the spray gun may be stationary while the pipe moves over the gun or both may be moved relative to each other.
Patent GB-517452-A (GB)
Title: Process for regenerating copper contained in the waste liquors of cuprammonium artificial silk production
IPC: C01G3/14
Filed: 1938-07-28
Abstract: 517,452. Regenerating copper from cuprammonium waste liquors. I. G. FARBENINDUSTRIE AKT.-GES. July 28, 1938, No. 22519. Convention date, July 30, 1937. [Class 1 (iii)] Basic copper sulphate is prepared by precipitating the copper from the waste liquors of cuprammonium artificial silk production as metallic copper or copper hydroxide, dissolving the precipitate in an ammoniacal ammonium carbonate solution, distilling off the ammonia and part of the carbon dioxide to precipitate the copper as basic carbonate, and treating the basic carbonate with copper sulphate solution or sulphuric acid to form basic copper sulphate. The first copper-containing precipitate may be purified, particularly from arsenic, by solution in the presence of water-soluble ferrous or magnesium salts and while blowing in oxygen or a gas containing oxygen. In forming the basic sulphate, an excess of dissolved copper sulphate may be used, or the copper sulphate solution may be purified spinning solution containing copper sulphate.
Patent GB-1321019-A (GB)
Title: Grease compositions containing polymers
IPC: C10M169/00
Filed: 1971-04-19
Abstract: 1321019 Greases CONTINENTAL OIL CO 19 April 1971 [16 March 1970] 22540/71 Heading C5F Greases consist of, by weight, (A) 75-99À9 parts of a thixotropic grease composition comprising (1) 2-80 parts nonvolatile diluent oil (e.g. mineral and synthetic lubricating oils), (2) 5-55 parts oil-soluble alkaline earth metal sulphonates (many examples of which are given) and (3) 1-45 parts of alkaline earth metal carbonate; the composition A having an acetic base number of at least 50, an ASTM dropping point of at least 480 F. and not flowing at 210 F., and (B) 0À1-25 parts of a polyterpene, ethylenevinyl acetate copolymer or ethylene-isobutyl acrylate copolymer having a mol. wt. of 3000- 1,000,000, a high solubility in aliphatic hydrocarbon solvents and a degree of crystallinity of less than 50%. Ingredients (2) and (3) may be in the form of an overbased sulphonate (preparation details given).
Patent GB-461120-A (GB)
Title: Improvements in and relating to sound recording apparatus
IPC: G11B7/00
Filed: 1936-08-17
Abstract: 461,120. Gramophone recording circuits. LEITHAUSER, G. Aug. 17, 1936, No. 22584. Convention date, Oct. 8, 1935. [Class 40 (iv)] The mean position of the recording element of an electromagnetic or electro-optical recording instrument connected in the anode circuit of an amplifying valve varies with variations of the direct current component. To compensate this effect, additional direct current dependent on and opposed to said component is fed to the instrument. As described, the instrument has an additional winding to which the opposing current is fed. The opposing current may be the anode current of a second valve which is caused to vary in accordance with the current variations of the amplifying valve, or a direct current instrument in the anode circuit of the amplifying valve may control a variable resistance in the circuit of the second winding which is fed by a D.C. source. The windings may be on separate cores, but where they are on the same core a low-frequency choke is inserted in the circuit of the compensating winding to prevent it from short-circuiting the audio-frequency currents in the main winding.
Patent GB-1389551-A (GB)
Title: Multiplex digital telecommunications apparatus having error- correcting facilities
IPC: H03M13/00
Filed: 1972-05-15
Abstract: 1389551 Data transmission; error correction DEFENCE SECRETARY OF STATE FOR 6 July 1973 [15 May 1972] 22705/72 Heading H4P Multiplex digital telecommunications apparatus comprises facilities for encoding and decoding digital signals according to any selected one of a set of predetermined block codes having different rates and different errorcorrecting capabilities. The block codes are of the form (nkt) where n is the total number of digits in a block, k is the number of data digits and t is the number of errors corrected. Examples are given of (11, 7, 1); (11, 4, 2); and 11, 1, 5) codes. The encoder Fig. 1 (not shown) includes a buffer store (1) arranged to receive binary data in blocks of k digits and to apply the k digits of each block to a set of r parity check encoder circuits (3). Another store (5) receives the outputs from the first store and also those from the encoder circuits. The decoder, Fig. 2, includes: a buffer store 10, for providing on separate lines simultaneously, representations of digital signals belonging to received blocks of signals; a set of syndrome-element deriving circuits 13 comprising modulo-two adders arranged for simultaneously deriving all the syndrome elements; a set of error-detecting circuits 14 for simultaneously deriving error indications of any information digit and comprising coincidence gates; and correcting gates 15 comprising modulo-two adders for providing corrected representations of the data signals.
Patent GB-1045746-A (GB)
Title: Improvements in or relating to multiple twist yarn twisting machines
Inventor: SLACK IAN DAVID
IPC: D01H1/10
Filed: 1963-06-07
Abstract: In a two for one twisting device comprising a flyer 20, Fig. 1 (not shown), for unwinding yarn 90 from a stationary package 18, a hollow driven spindle 10 down which the yarn passes to receive a first twist and a second hollow driven spindle 22 to which the yarn passes to receive a second twist, the yarn passes from an exit eye 46 in the first spindle to an entry eye 68 of the second spindle via a guide tube 60 so that the length of the yarn path between the two is left constant.  As shown, the spindles 10, 22 lie on the same axis and are driven synchronously from a drive shaft 28.  The guide tube 60 is preferably of nylon, metal, synthetic resin or braided wire and it is preferably stream-lined in cross-section.  Guide rollers 44, 52 positioned at the entry and exit of the guide tube 60 are preferably of ceramic.  The apparatus is mounted so that the axis of the spindles is inclined to the vertical and the package 18 is mounted on a plate 16 which has an assymetrical weight distribution to prevent rotation of the package.
Patent GB-843938-A (GB)
Title: Improvements in and relating to primary electric cells
IPC: H01M6/18
Filed: 1956-07-23
Abstract: 843,938. Batteries. UNIVERSAL WINDING CO. July 23, 1956 [Aug. 2, 1955], No. 22734/56. Class 53. A battery for providing high voltage is composed of cells having a solid electrolyte containing tellurium. In an example silver chloride is fused with 5% of tellurium and the mixture applied to one side of a sheet of silver. Discs are punched from the coated sheet and the coated sides covered with a solution of copper chloride in methyl alcohol containing dispersed graphite. The discs are stacked and placed in an insulating tube, end discs of silver with soldered wires forming terminals. In other examples silver bromide and iodide are used instead of the chloride. Anodes of strontium, barium and rhubidium may be used, and solid electrolytes may comprise tellurium added to the halides of mercury, antimony, bismuth or lead. Oxidizing salts may be employed as cathodes.
Patent GB-155370-A (GB)
Title: Improvements in and relating to curry combs
IPC: A01K13/00
Filed: 1919-09-16
Abstract: 155,370. Printz, C. H. Sept. 16, 1919. Currycombs.-A currycomb is provided with toothed plates secured at the ends to the head by tacks &c. and detachably engaged at the intermediate portions to permanent fastenings on the head. The inner toothed members 4, preferably made from angle plates, have the body portion 6 formed with ears 8 which are bent over and secured to the sides of the head, and with keyhole slots 19 which receive headed fastening-devices permanently fixed to the head. U-shaped plates may be used, having teeth on the two side flanges. The outer member 9<1> is formed from a flat plate having teeth on the two edges, and is similarly secured to the end of the head.
Patent GB-1183000-A (GB)
Title: Catalyst Composition.
IPC: B01J29/12
Filed: 1968-05-14
Abstract: 1,183,000. Reforming catalysts. UNION CARBIDE CORP. 14 May, 1968 [15 May, 1967], No. 22791/68. Addition to 1,161,071. Heading B1E. [Also in Division C5] A catalyst composition comprises a crystalline zeolite molecular sieve having a pore size sufficient to accept benzene and a composition expressed in terms of moles of oxides as [xQ 2 O + yMO + zM<SP>1</SP> 2 O]: Al 2 O 3 :bSiO 2 :pH 2 O in which Q is an alkali metal, M is Sr, Ba or mixtures -thereof; M' is Th or a rare earth element or mixture thereof, b=2.3-3.0, p=0-9, x+y+z=0.92-1, y is at least 0.6, z=0.04-0.30, n is the valency of M' and the zeolite containing a hydrogenation agent which may be a Pt group metal or selected from Groups IB, IVA, VIB and VIIB. Additionally the catalyst may contain an oxide of Cr, Mo, W, Al, Zr, Ti, or Th or a filler e.g. Kaolin, attapulgite, sepiolite, polygarskite, bentonite or montmorillonite. Conventional preparative details are described.
Patent GB-189521-A (GB)
Title: Improvements in or relating to spring mattresses
IPC: A47C23/32
Filed: 1921-08-30
Abstract: 189,521. Wilson, W. A. Aug. 31, 1921. No Patent granted (Sealing fee not paid). Mattresses.-In an outer frame a, b an inner member e is supported by a spring or springs p from a transverse member o secured to the outer frame and by a series of radial tensioning- members f. The tensioning-members f are built up of elongated S-shaped hook members k and one or more stout rubber rings or loops m or other spring members. The edges of the inner buffering frame e and the outer frame are provided with upstanding studs g, h at intervals to which the ends of tensioning-members are attached. A removable cover-plate n fits over the frame e to secure the inner ends of the members f against disengagement from their pins. The outer frame a, b may consist of two similar parts hinged together at one end and connected at the other end by one or more springs.
Patent GB-950450-A (GB)
Title: Hydrated metal aluminate
Inventor: SCHENCK REMSEN TEN EYCK
IPC: C01F7/162
Filed: 1960-07-01
Abstract: An hydrated magnesium aluminate of formula MgO.Al2O3.xH2O, where x is a number from 8-12 is prepared by establishing an aqueous suspension of hydrated alumina in the presence of a soluble Mg salt at pH 6-10 at ratio Mg/Al being at least 1/2 .  Thus an alkali metal aluminate solution may be acidified with hydrochloric or acetic acid in the presence of a soluble Mg salt, or alternatively freshly precipitated aluminium hydroxide gel, or aluminium isopropoxide, may be contacted with magnesium bicarbonate solution in the presence of excess CO2 and the precipitated magnesium aluminium carbonate boiled in water to remove carbon dioxide.  Basic magnesium aluminium carbonate decomposable by boiling to the above hydrated magnesium aluminate, may also be precipitated by saturating a solution of a soluble magnesium salt, for example the chloride, with carbon dioxide and adding an alkali metal aluminate whilst maintaining the pH at 6-10. The product is useful as an antacid. Specification 933,405 is referred to.ALSO:A hydrated magnesium aluminate of formula MgO.Al2O3.xH2O where x is a number from 8-12 (see Division C1), is employed as an antacid, preferably tableted with sugar or dextrin, aspirin tablets (5 grain) may incorporate 2 to 3 grains of the aluminate to offset hyperacidity. Specification 933,405 is referred to.
Patent GB-983226-A (GB)
Title: Improvements in or relating to gaseous insulation for magnetohydrodynamic energy conversion apparatus
IPC: H02K44/08
Filed: 1963-06-10
Abstract: 983,226. Generators operating by electromagnetic interaction with fluids. WESTING- HOUSE ELECTRIC CORPORATION. June 10, 1963 [July 17, 1962], No. 23070/63. Drawings to Specification. Heading H2A. In a magnetohydrodynamic generator duct, short-circuiting along the boundary walls between the opposed facing electrodes is prevented by providing a layer of substantially non-conducting gas adjacent these walls. The duct walls may be cooled by tubes embedded in them and thus cool the boundary layer of gas or, alternatively, cold gas, e.g. air, may be injected adjacent the walls either at the upstream end of the duct or through the walls themselves if they are made porous. Suitable materials for the walls are zirconium or magnesium oxide.
Patent GB-1468216-A (GB)
Title: Camera with long film magazine
IPC: H02P29/00
Filed: 1974-05-23
Abstract: 1468216 Cameras with long film magazines NIPPON KOGAKU KK 23 May 1974 [25 May 1973] 23189/74 Heading G2A A motor-driven camera has a long film magazine with a first motor for charging a shutter and operating a sprocket to transport a length of film, a second motor to operate the film winding spool, and a control system which stops the second motor slightly before the first, so that a small degree of slack is produced between the sprocket and the spool. As shown in Fig. 2C, the rear cover of the camera is replaced by a long film magazine 8. The transported film passes over a sprocket 10 driven by a motor M1 in the camera body from a power source therein, and is wound on to a take-up spool 7 driven by a motor M2, both in the magazine. The motor M2 is connected to the power source in the camera when the magazine is attached thereto. As shown in the block diagram of Fig. 3A, the motor M1 which operates the film transport sprocket 10 and charges the shutter is connected to the power source 21 through a switch 20. The motor M2 which drives the take-up spool 7 is also connected to the source 21 through the switch 20 and a time constant circuit. This circuit functions to detect the lapsed time beginning from the closure of switch 20, and can be designed so that motor M2 is actuated for a slightly shorter time than motor M1 i.e. by the time instant t, Fig. 3C (not shown). Thus slightly more film is transported by sprocket 10 than is taken up by spool 7, so that the filmstrip between them becomes slightly'slackened. Since the film is not under any tension, there is no tendency for it to be slightly displaced when the shutter is released, which could blur the photographic image. The time constant circuit is given in more detail in Fig. 4 (not shown). A further advantage is that no film perforations lie between successive exposed image areas Fig. 1B. If the perforations do fall between successive image areas, as in Fig. 2B, this introduces inconvenience when the film is cut into individual frames. Further embodiments include circuit arrangements which will compensate for voltage fluctuation in the batteries forming the power source.
Patent GB-354546-A (GB)
Title: Improvements in flowmeters
IPC: G01F1/20
Filed: 1930-08-02
Abstract: 354,546. Flow meters. JAQUES, C. N. and TAYLOR, E., Royal Aircraft Establishment, South Farnborough, Hampshire. Aug. 2, 1930, No. 23344. [Class 69 (i).] A flow meter comprises a vane movable in a passage of constant or varying cross - sectional area against the action of a spring or equivalent, the outlet from the passage consisting of a series of separately adjustable orifices which come into operation successively. In the form shown, a number of spring-hinged flaps 14, are provided along an open side of the passage, set-screws 16 limiting the opening of the flaps. In another form, orifices regulated by screwed plugs are employed.
Patent GB-804447-A (GB)
Title: Improvements in or relating to cloches
Inventor: LOFTUS-TOTTENHAM HENRY THOMAS
IPC: A01G13/04
Filed: 1956-07-31
Abstract: 804,447. Garden cloches. CHASE PROTECTED CULTIVATION, Ltd. July 31, 1956, No. 23539/56. Class 20(1): The upper glass sheets 12, 13 of a barn cloche can be raised to vertically dotted line position where the edges are held in bends 28, 33 formed on transverse loops 29 which are extensions of the wire forming the circular lifting handle. The adjustment is permitted by finger pinching the loops 29 and 34 slightly together. The underside 31 of the transverse loop 29 normally acts to hold down the sheets 12, 13 against the inner Y-shaped frame 18 and the inner part of the lift wire 14.
Patent GB-493527-A (GB)
Title: Improvements relating to thermionic valve circuits
IPC: H04B3/16
Filed: 1937-04-06
Abstract: 493,527. Valve circuits. COSSOR (HOLDINGS), Ltd., A. C., (formerly COSSOR, Ltd., A. C.), and JOFEH, L. April 6, 1937, No. 23560/38. Divided application. [Class 40 (v)] A negative impedance comprises a potential divider composed of positive impedances, the screen grid to anode circuit of a hexode or like valve being connected across the input terminals thereof, the output terminals being connected to the cathode and outer control grid of the valve. In one embodiment, Fig. 2, for producing negative capacity, the potential divider comprises a condenser C1 and comparatively low resistance R12, the screen grid and cathode of a hexode V3 being connected thereacross and the outer control grid being connected to the junction of the condenser and resistance. The anode is earthed for alternating potentials. The negative capacity is produced between the screen-grid terminal. 7 and earth, and may be varied by varying the control grid potential of valve V3 for tuning or for neutralizing undesired capacities. In another embodiment, Fig. 1, a negative capacity for neutralizing the anode-cathode capacity of an amplifier V4 is produced by an octode valve V3 associated with the potential divider C1, R12 connected between the anode and cathode of valve V4. The cathode of valve V3 is connected to the junction of C1 and R12, the outer control grid to the earthed end of R12 through condenser C4, the anode to the upper end 7 of the divider and the screen grid to the lower end through condenser C5. A resistance R11 is connected between the point 7 and the anode of valve V4 to neutralize the residual negative resistance of the circuit due to the presence of R12 in the potential divider. The Provisional Specification describes a circuit in which the anode and cathode of a pentode are connected across the divider and a second valve produces a phase reversal of the potentials fed to the control grid of the pentode from the output of the potential divider. A circuit is also described in which two valves are fed in push-pull from the divider, their anode-cathode spaces being in series across the input thereof.
Patent GB-332948-A (GB)
Title: Improvements in the manufacture and production of solid urea or fertilizers containing urea
IPC: C05C9/00
Filed: 1929-04-29
Abstract: 332,948. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 29, 1929. Divided on 332,945. Manures.-Solid urea or products rich in urea are obtained in almost anhydrous form by adding to a pure solution of urea a quantity not exceeding 15 per cent of substances adapted to lower the solidification point of the anhydrous melt, preferably to 120‹ C. or less, evaporating until the water content of the mass is substantially less than 10 per cent, and spraying the melt or allowing it to run in a thin stream into liquids, for example, mineral oils or carbon tetrachloride, kept in motion. Suitable additions are substances which are soluble in water and in the anhydrous melts, do not decompose the urea, and preferably also possess a fertilizing action. Additions specified are diammonium phosphate, potassium phosphates, monocalcium phosphate, phosphoric acid, the nitrates of sodium, potassium, and ammonium, potassium chloride, ammonium sulphate, formamide, and acetamide. Examples are given.