baber/WOPTO huggingface dataset:
Patent GB-1159302-A (GB)
Title: Improvements in or relating to Indirectly Heated Cathode Structures
IPC: H01J1/28
Filed: 1967-03-28
Abstract: 1,159,302. Thermionic cathode constructions. SIEMENS A.G. 28 March, 1967 [19 March, 1966], No. 14006/67. Heading H1D. In an indirectly heated dispenser cathode, e.g. for travelling wave tubes, the quantity of emissive material migrating to the emissive surface of a porous sintered cover-plate 1 sealed to a cathode body 2 is controlled by housing the store of emissive material 8 in a plug-in cartridge 7 which is readily inserted in the cathode body 2 and which is closed at the end adjacent cover-plate 1 by a sintered refractory end plate 11 of similar porosity to cover-plate 1. Heater 3 may be embedded in cement behind a radiation shield 4 in the cathode body 2, and the plug-in cartridge 7 which may be cylindrical is housed in body 2 in a cylindrical bore 5 which opens out to form a flared out portion 6 adjacent cover-plate 1. The coverplate diameter may be from one to six times that of the end plate 11 and may be spaced from it at least ten times its own thickness, and both porous plates may be of tungsten. Although the plate 11 should form a perfect seal with cartridge 7 it is not necessary for the cartridge itself nor the porous cover-plate 1 to be perfectly sealed in the cathode body, but, for example, the plate 1 may be spot welded.
Patent GB-381891-A (GB)
Title: Improvements in or relating to percussion ignition devices for hand and rifle bombs
IPC: F42C15/22
Filed: 1932-05-17
Abstract: 381,891. Projectiles ; fuzes. SOC. ITALIANA E. BREDA, 9, Via Bordoni, Milan, Italy. May 17, 1932, No. 14017. Convention date, May 18, 1931. Addition to 272,221 and 298,244, [both in Class 9 (i), Ammunition &c.]. [Class 9 (i).] Relates to percussion fuzes of the kind comprising two telescopic parts one pivotallv mounted and the other bearing against a concave seat as described in the parent Specifications. According to the invention, the pivotal action is obtained by a large light head 38 of one part fitting loosely in the outer casing 28, and this head is surmounted by a cup 42 which bears on a concave seat 28<1> and wedges the firing-pin 40, 6 against the percussion cap 9 when the impact is lateral, the firing-pin being slidably mounted in the head 38 and being normally retracted by a spring 41. The percussion cap 9 and the detonator 21 are arranged in a tube 37 in one with the second part 8 which contains the main explosive charge, and is slidable on a tube 31 in one with the head 38 and is pressed by a spring 10 against the concave seat 27<1>. The two parts of the fuze are normally held apart by a transverse safety rod 22 which is pulled out by a cap 23 when the bomb is thrown.
Patent GB-871192-A (GB)
Title: Grafted polymers
IPC: C08F291/00
Filed: 1958-05-02
Abstract: Water-soluble graft polymers are obtained by polymerizing an ethylenically unsaturated compound having the structure: <FORM:0871192/IV (a)/1> wherein X is a hydrogen atom or a methyl or ethyl group and Y is a carboxyl group, a carboxylic salt group, a nitrile group or an acid amide group in the presence of water-soluble polymeric material, other than a protein, containing a C-H bond having a molecular weight greater than 1000, and, if necessary to impart water-solubility, hydrolysing the polymerization product, the amount of the preformed polymeric substance present in the graft polymer being between 5% and 50% by weight.  Water-soluble preformed polymers specified are polyvinyl alcohol, polyvinyl pyridine, polyacrylic and polymethacrylic acids and amides, starch, starch ethers, e.g. isopropylated starch, dextrins, cellulose ethers and polyethylene oxide.  Monomers specified are acrylonitrile and acrylamide.  Polymerization may be carried out in an aqueous medium with the assistance of catalysts, e.g. peroxides and persulphates, or mixtures of persulphates with reducing agents.  The hydrolysis of the polymerization products, when carried out, may be partial or complete and may be effected by means of acid or alkaline hydrolysing agents. Specification 715,194 is referred to.ALSO:The settlement and filtration of aqueous suspensions of ores and waste waters is assisted by the addition thereto of water-soluble graft polymers made by the polymerization of an ethylenically unsaturated compound in the presence of a water-soluble preformed polymeric substance (see Group IV(a)). Examples describe the addition of graft polymers to coal talings and to the precipitates obtained in successive acid and alkaline treatments of scheelite.  Specification 715,194 is referred to.ALSO:The settlement and filtration of aqueous suspensions of ores is assisted by the addition thereto of water-soluble graft polymers made by the polymerization of an ethylenically unsaturated compound in the presence of a water-soluble preformed polymeric substance (see Group IV(a)).  In an Example (9) scheelite is treated with concentrated hydrochloric acid to form a colloidal precipitate of tungstic acid and other insoluble substances the flocculation and settling of which is assisted by the addition of a hydrolysed acrylonitrile/starch ether graft polymer, the ore precipitate is then dissolved in ammonium hydroxide to form a precipitate of silica, the flocculation and settling of which is assisted by the graft polymer remaining from the first stage of the process.  Specification 715,194 is referred to.
Patent GB-1527585-A (GB)
Title: Process for the preparation of cationic naphtholactam dyestuffs
IPC: C09B57/06
Filed: 1977-04-04
Abstract: 1527585 Preparing water-soluble cationic naphtholactam dyes BAYER AG 4 April 1977 [6 April 1976] 14104/77 Heading C4P Water-soluble cationic dyes are prepared by reacting a dyestuff of the general formula wherein R and R 1  are independently alkyl, R 2  is alkyl, aralkyl, cycloalkyl or aryl or is an alkylene radical bonded to ring A in the o-position to the N atom and An<SP>-</SP> is an anion and in which the said radicals, ring A and the naphthalene ring optionally contain nonionic substituents and in which at least one of R and R 1  contains an OH group or a halogen atom or another group which can be split off as an anion under the reaction conditions, with a polyhydric alcohol in presence of a catalyst so that at least one of R and R 1  is converted into a radical containing an oxygen ether group and a terminal hydroxy group. Suitable polyhydric alcohols include di- and tri-hydroxyalkanes containing two primary hydroxy groups, e.g. ethylene glycol or 1,3-dihydroxypropane. The reaction takes place at 80-160‹ C. and preferred catalysts include aluminium oxide, silica, active alumina and finely divided platinum. The dyes are used for dyeing, bulk-dyeing or printing polyacrylonitrile or for dyeing acid modified polyamides.
Patent GB-1500524-A (GB)
Title: Backing disc for sander
IPC: B24D9/08
Filed: 1975-04-07
Abstract: 1500524 Abrasive tools GLM CONSOLIDATED 7 April 1975 [8 April 1974] 14196/75 Heading B3D A backing disc 21 for a portable sander comprises an abrasive material 22 engaging a front face of the disc, and a plurality of blades 31 disposed on the rear surface, the blades being circumferentially spaced, of substantially rectangular planar configuration extending normally from the surface, and offset from a radius of the disc with the outer ends in trailing relation to the direction of rotation of the disc in use. The sander comprises a housing 12 provided with handles 14, 18 and an electric motor which is controlled by a switch 16 and has a drive shaft 13. The backing disc 21 is made of material having limited flexibility, such as plastics material, and is formed with a raised portion on its rear surface for accommodating a bolt for securing the disc and an abrasive sheet 22 to the shaft 13. The blades 31 are disposed on the rear surface of the disc and extend for from a third to a quarter of the length of the radius of the disc and are inset from the outer edge of the disc by a fifth to a quarter of the radius of the disc. The blades are set at an angle of between 10 to 15 degrees to radii of the disc with the outer edges trailing in the direction of rotation. The blades have a height of a tenth to an eighth of the radius of the disc. In use, the blades create an air flow outwardly of the disc to pick-up and eject particles of dust and the like which may be directed in a stream 42 into a receptacle 46 carried by an arm 47 on the sander.
Patent GB-150795-A (GB)
Title: Improvements in wheels for vehicles
IPC: B60B3/08
Filed: 1919-06-04
Abstract: 150,795. Riley, Ltd., and Rush, H. June 4, 1919. Disk wheels.-Dished wheels comprise two or more disks 1, 2 spaced apart at the hub by a ring 4 and braced intermediate the hub and rim by a series of washers 5 and rivets 6 or by a ring. In one construction, the disks are dished in the same direction to different angles, and in an alternative construction one of the disks may be fiat. Fig. 3 shows a further modification in which only one disk 1 extends the full depth of the wheel, a second disk 7 of less diameter being riveted to the disk 1 at its periphery, and a third disk 9 of still smaller diameter being riveted at its periphery to the disk 7. The disks are mutually spaced at the hub by rings 4, and the disks 1 and 7 are braced at an intermediate part by a ring or washers 5 and the rivets 10 that secure the smallest disk.
Patent GB-733861-A (GB)
Title: Improvements in or relating to marine depth finders
Inventor: ROSS WAYNE M
IPC: G01S7/527
Filed: 1952-06-05
Abstract: 733,861. Pulse time interval measurement. MINNEAPOLIS - HONEYWELL REGULATOR CO. June 5. 1952, No. 14234/52. Class 37. [Also in Groups XXXVIII and XL (c)] In a pulse echo-sounding system (see Group XXXVIII) a recurrent negative range pulse is initiated and terminated respectively by the transmitted and echo pulses, Fig. 6 (not shown), and a D.C: voltage proportional to the duration of said range pulse is produced by applying the pulse to the grid of a triode 162, thereby allowing capacitor 160 to charge positively via a selected one of resistors 164, 164<1>, 164<11>, the resultant sawtooth voltage being applied to a peak detector comprising diode 168 and capacitor 166. In order to ensure that the D.C. output from the detector decreases rapidly in correspondence with a rapid decrease in the duration of the range pulse, a triode 172 connected across diode 168 is rendered conductive at the trailing edge of the range pulse by means of a short positive pulse derived from the range pulse by differentiating network C174, R176, so that if the D.C. voltage across C166 is greater than the peak amplitude of the sawtooth voltage across C160, capacitor 166 will discharge partially to establish the correct D.C. voltage. The amplitude of the resultant D.C. voltage is measured by the valve voltmeter comprising triode 170 and meter 50.
Patent GB-1526628-A (GB)
Title: Stopcocks
IPC: F16K31/524
Filed: 1977-04-05
Abstract: 1526628 Valves A A BAKAR 5 April 1977 14234/77 Heading F2V Jn a stopcock the valve member 11 is moved relative to its seat 6 by a cam 14 which is pivoted at 46 and is integral with an operating lever 18. The cam acts on a piston follower 8 having a hollow depending rod 9, inside of which slides an upstanding valve stem 10. The lever houses two springs 45 acting on friction pads 20 which bear on the convex upper surfaces (44) of two support blocks 37 attached to the valve housing to hold the lever in any position.
Patent GB-975286-A (GB)
Title: Electrical circuit elements
Inventor: HILL RONALD ALFRED
IPC: C04B35/468
Filed: 1962-04-13
Abstract: <PICT:0975286/C1/1> In the manufacture of polar capacitors a mixture of barium and lanthanum titanates (95: 5 by weight) is prepared by conventional techniques and the powder sieved to retain powder compacts of a given size.  These are fired in air at 1375 DEG  C. and the resultant balls 2 coated in camphor.  A thin disc 1 is pressed from the same mix and a quantity of balls 2 pressed into contact with it.  The composite body is then fired at 1425 DEG  C., and then reduced in hydrogen at 900 DEG  C.  Thereafter by immersing the composite body in silver nitrate and then heated to 400 DEG  C. all internal and external surfaces are covered in metallic silver.  The body is reheated in air, and reoxidation of the outer skin of the composite body occurs by diffusion of oxygen through the silver coating 3.  The surface 5 of the disc 1 is then rubbed away to a depth sufficient to remove the silver coat and indium is rubbed into the exposed ceramic surface. A silver layer 6 is fired on top of the indium, restricted in area to avoid contact with the silver coating 3, and finally leads 7 and 8 are attached to the separated silver coatings.  A non-polar capacitor is described (Fig. 2, not shown) of similar construction except that the disc 1 has a porous mass of ceramic balls applied to both sides, and the silver layer on the circumference of the disc is removed to separate the two electrodes. Specification 884,943 is referred to.
Patent GB-777679-A (GB)
Title: Improvements in or relating to microbicidal compositions
IPC: A01N59/16
Filed: 1954-08-30
Abstract: Soap or a synthetic detergent, e.g. an amine salt of a sulphated fatty alcohol, has incorporated therein for bactericidal and like purposes, a finely divided sparingly water-soluble silver compound which is substantially white in colour and which normally becomes discoloured on exposure to light, e.g. a silver halide or phosphate, andas a light stabilizer therefor, a substance opaque to light of a wave length causing discoloration of the silver compound.  The light stabilizer may be either inorganic, e.g. water-insoluble phosphates, silicates, alumina, silica diatomaceous earth, calcium carbonate, zinc oxide or magnesia, or organic, e.g. starch methyl or ethyl cellulose, polyvinyl acetate, or an amine salt, e.g. an alkylolamine salt, of a fatty acid, such as stearic, oleic or palmitic acid.  A sparingly water-soluble fungicidal compound, e.g. a salt of an aliphatic acid having from 3 to 11 carbon atoms in the molecule, e.g. calcium undecylenate, may also be incorporated.ALSO:A microbicidal composition comprises a finely divided sparingly water-soluble silver compound, which is normally substantially white in colour and which normally becomes discoloured on exposure to light, e.g. silver halide or phosphate and, intermingled intimately therewith as a light stabilizer therefor, a substance opaque to light of a wave length causing discolouration of the silver compound, the composition when in aqueous admixture furnishing a germicidal concentration of silver ions.  The light stabilizer may be either inorganic, e.g. water-insoluble phosphates such as those of the alkaline earth metals, including magnesium, sulphates, silicates, alumina, silica diatomaceous earth, calcium carbonate, zinc oxide and magnesia or organic, e.g. starch and in the form of a liquid, solid or a paste. The composition may contain a sparingly water-soluble fungicidal compound, e.g. a salt of an aliphatic acid having from 3 to 11 carbon atoms in the molecule, e.g. calcium undecylenate and may be in the form of a dry powder, an ointment or lotion, e.g. tooth paste, dental cream, shaving cream and after shaving lotions and in which the stabilizer is an ointment base, e.g. zinc oxide, boric acid or camphor ointment.  The composition may also be in the form of a tooth powder consisting of calcium undecylenate silver chloride, calcium carbonate and peppermint oil.
Patent GB-327612-A (GB)
Title: Improvements in or relating to spring testing and assorting machines
IPC: G01N3/00
Filed: 1929-05-08
Abstract: 327,612. Mathys, A. W., (Monroe Calculating Machine Co.). May 8, 1929. Testing springs. - Comprises a machine for testing coiled springs wherein each spring is stressed between two members, one of which is connected to a steelyard or equivalent device opposing the resistances of the spring by a force dependant on a predetermined standard, characterized by the provision of a carrier adapted to bring the springs successively into and away from the testing position automatically. The springs to be tested are fed'at the point A from a spring making machine C or otherwise on to radial carrier spokes 32 on a hub 31 which is advanced step-by-step by ratchet and pawl gear from a reciprocating mechanism deriving movement from the machine C, to a testing point diametrically opposite the point A. A block 42 adjustably secured to the frame 1 is provided with a fulcrum for a lever 34 the lower arm of which has an annular extremity adapted to slide freely over the radial projections 32. The horizontal arm of the lever 34 carries an adjustable weight 36 and its movement is controlled by a dashpot 40. A set screw 48 is adjustable in a sleeve in the block to limit the downward movement of the arm 34. The head of the screw 48 rests on a plate 49 pivotally mounted in lugs 50 on the frame 1 and the plate 49 is normally held raised against the pressure of the weight 36 by a pivoted catch 53, in which position the end 35 of the lever 34 is out of engagement with the projections 32. As a projection 32 is advanced into testing position, a lug on a bell-crank 24, Fig. 3, strikes the catch 53 and moves it to register with a notch in the plate 49 which falls releasing the lever 34 to apply the predetermined load of the spring on the projection 32. In the return movement of the crank, a roller 51 engages a cam face 52 on the plate 49 raising it, and the catch 53 springs back into supporting position. The lever 34 is also returned in this movement. A U-shaped sorter member 55 is pivoted at the point 58 and carries laterally adjustable lugs 60, 62 which lie beneath the path of a projection 63 on the lever 34. If the spring under test is not compressed so that the projection 63 lies between the lugs, the projection lies over one or the other lug and prevents movement of the sorter member 55 which co-operates with catch mechanisms to operate a gate member 73. Normally the pivoted gate member 73 lies beneath the path of movement of the springs carried by the projections 32, and springs corresponding with a standard are carried beyond the member 73 before discharge as shown in Fig. 1. When a faulty spring causes tripping of the gate member 73 the faulty springs are delivered into the receptacle or shoot 82. Provision is made for testing springs under tension.
Patent GB-432311-A (GB)
Title: Improvements relating to calendars
IPC: G09D3/10
Filed: 1934-05-12
Abstract: 432,311. Calendars. MYATT & CO., Ltd., W. J., and HEELEY, W. M., Frederick Street, Birmingham. May 12, 1934, No. 14436. [Class 106 (iv)] A mounting for the moving parts of a monthly calendar comprises a base plate a with longitudinal edge flanges b provided with bearings for transversely arranged spindles c, d, e, and f. The outer spindles c, f, carry a transparent band g with cancellation marks and are adapted to be driven by bevel gearing n from finger knobs p. The other spindles d, e carry two flexible bands h, i bearing the month names and the date figures respectively and operated directly each by one of the knobs m. The band h is endless and is kept taut by a blade spring k while the band i has its adjacent ends interconnected by springs j. A fixed narrow-strip, l bears the day names. The mounting forms a single unit and can be readily assembled in a suitable form of ornamental case r with an apertured front plate s.
Patent GB-330722-A (GB)
Title: Improvements in steel sleepers for vehicle tracks and chairs therefor
IPC: E01B3/20
Filed: 1929-05-09
Abstract: 330,722. Cargo Fleet Iron Co., Ltd., Tees Side Bridge & Engineering Works, Ltd., James, J. E., Peat, J. B., and Bow, W. May 9, 1929. Sleepers, metal; chairs, securing to sleepers.- Metal sleepers with tamping and chair-securing holes have ribs or strengthening flanges in the neighbourhood of any holes. The tamping-holes 17, Fig. 5, may be plain or flanged at 18 and may have end tongues 19 bent down to engage the ballast. With lateral holes 20, 21, Fig. 7, a central rib 22 is provided, while ribs may extend from the holes to the sleeper ends. The upper surface may have ribs 23 at the chair seats. The ribs 23 may be replaced by the side flanges 28, Fig. 13, forming a trough sleeper. This sleeper may have deep side ribs 26 and a shallow centre rib 24, or a deep centre rib. Drainage holes may also be provided. The chairs 10, Fig. 1, have snugs 12 slotted at 16 to receive T-headed bolts 15.
Patent GB-181589-A (GB)
Title: Ball castor for furniture and the like
IPC: B60B33/08
Filed: 1921-05-25
Abstract: 181,589. Brewster, H. J. May 25, 1921. Castors.-A ball castor has a socket 1 in the bottom of which is contained a thrust washer 6 with a recess 7 for the ball 8 and a flat back, which engages a flat face 5 in the socket to enable the washer to slide without tilting in order to prevent jamming.
Patent GB-953057-A (GB)
Title: Suspension device for a rotary device
IPC: F16F1/376
Filed: 1960-04-26
Abstract: 953,057. Mounting electric motors. ELECTROLUX A.B. April 26, 1960 [April 27, 1959], No. 14558/60. Heading H2A. [Also in Division F2] A suspension device for supporting a rotary device, e.g. a fan or vacuum cleaner motor, comprises at least one elastic ring having eight or more radial projections, the radial dimensions of which are greater than the greatest circumferential dimension. As shown, a fan 11 is supported within a casing 12 by an elastic ring 10. The projections may be directed radially outwardly or inwardly and may be tapered or have concave sides. The ends of the projections may be flat, pointed, concave or convex. Two axially spaced rings of projections may be provided.
Patent GB-354401-A (GB)
Title: Improvements in or connected with safety valves
IPC: F16K17/04
Filed: 1930-05-13
Abstract: 354,401. Safety valves. ROSS & CO., Ltd., R. L., Premier Works, Stockport, and HARGREAVES, W., Glendaruel, Thorley Lane, Timperley, both in Cheshire. May 13, 1930, No. 14651. [Class 135.] The seat b is of a, different metal from the mount a which is provided with a central guide a<2> for the valve stem. Stainless steel is mentioned as a suitable material for the seat b and phosphor bronze for the element a. The seat may be formed with a number of projections b<2>, the object of which is to take up, on rotation of the seat, any play which may be produced by differential expansion.
Patent GB-630964-A (GB)
Title: Improvements in and relating to radio communication systems for use as aircraft position and like reporting means
IPC: G01S13/78
Filed: 1946-05-15
Abstract: 630,964. Electric selective signalling. HARRIS, K. E., and COURT, G. W. G. May 15, 1946, Nos. 14670/46 and 7461/47. [Class 40 (i)] [Also in Group XL (c)] To obtain particulars on the ground of an approaching aircraft, the aircraft is provided with a radio receiver for signals transmitted from the ground and a transmitter 12 which is connected to audio frequency modulating systems 3, 4, 5 ; 6, 7, 8 ; 9, 10 and retransmits coded signals to a ground receiver 15 from which the signals are passed to a filter bank 16 and a decoding device 17 connected to a display device 18. The position of the aircraft is obtained from a navigational aid 3 feeding a control 4 for the coding device 5. Similarly, the height is given by an altimeter 8 feeding a control 7 and a coding device 6, and the identity by a coding device 9 which may be provided with a selector unit 10 to alter the code frequencies. A clock-operated switch 11, normally in the position 14, whereby the transmitter is in normal communication with the ground, is closed for <SP>1</SP>/ 10  second every five minutes in a position 13 wherein the transmitter output is modulated by the combined outputs from the coding devices 5, 6, 9. The receiver 15 passes the coded signals through filter banks and associated relays to uniselectors whose wipers are " homed " according to the information received, Fig. 3 (not shown). The wipers are ganged to arms which are arranged to energize the display device, e.g. monogrammatic signs, Fig. 4 (not shown).