baber/WOPTO huggingface dataset:
Patent GB-966807-A (GB)
Title: Improvements in or relating to the production of uranium
Inventor: GIBSON ALAN ROBERT
IPC: C25C3/34
Filed: 1961-05-10
Abstract: <PICT:0966807/C6-C7/1> Pure uranium, or an alloy thereof, is produced electrolytically using as electrolyte an alkaline earth metal halide, e.g. MgCl2 or CaCl2 in which UO2 is suspended, and maintaining the temperature below the melting point of uranium metal, e.g. 850-950 DEG C.  The cathode may be inert, e.g. molybdenum, or may form an alloy with uranium, e.g. using a molten layer of aluminium.  For example, an aluminium alloy containing 74.2% U is formed corresponding to UAl3.  This powder is washed and heated in an alumina boat at 1500  DEG C. in vacuo, yielding a product of 79% U corresponding to UAl2, melting at 1590  DEG C.  An iron alloy is made using as cathode a eutectic mixture of U and Fe containing 183 g. U and 26 g. Fe; after electrolysis the cathode alloy contained 89% U compared with 87.6% of the original cathode alloy.  In a suitable apparatus, an alumina crucible 1 heated in a furnace 2 is provided with a lid of pyrophyllite having an aperture 5 for the supply of an inert gas, e.g. argon.  Carbon black anodes 12a are carried on a graphite rod 13 protected by an alumina sheath 14.  A stirrer 6 of molybdenum is carried on an inner steel shaft 7, and the molybdenum cathodes 9 are circular and provided with louvres 10, through which the suspension of UO2 flows impelled by the stirrer.  The cathodes are connected to a tungsten rod 11. A suspension of hydrogen-refined UO2 is suspended in molten CaCl2 and this electrolyte is treated at 5-6V. for 2 hours, the stirrer being stopped before the end of the run to ensure reduction of any UO2 resting on the cathode. The product of pure uranium powder is then washed and dried.  The UO2 used as starting material is either electrolytic or hydrogen-precipitated; the hydro-precipitated oxide is not satisfactory. In apparatus for making U/Al alloy no stirrer is used, but in the case of U/Fe alloys a stirrer may be employed. Specification 889,307 is referred to.
Patent GB-1081398-A (GB)
Title: Panel
IPC: B32B27/00
Filed: 1966-04-26
Abstract: 1,081,398. Laminates. GOODYEAR TIRE & RUBBER CO. April 26, 1966 [July 1, 1965], No. 18168/66. Heading B5N. A laminated panel comprises a substrate of hardboard having a surface roughly sanded to provide parallel straight-line striations which are relatively short compared to the length of the panel and distributed close to one another, and a thermoplastic film adhered to the sanded surface which film has wood grain pattern printed thereon, the printed grain of the film and the striations extending in the same direction, the film being pressed against the striations so that the exposed surface of the film is roughened to conform to the striations. The film used may be e.g. a polyester, P.V.C., polyvinyl fluoride, a polycarbonate, or rubber hydrochloride, and the adhesive used is suitably a mixture of a polyester and a polyisocyanate. The hardboard is preferably tempered hardboard.
Patent GB-1095131-A (GB)
Title: Improvements in or relating to gyroscope control systems
IPC: G01C19/04
Filed: 1963-05-08
Abstract: 1,095,131. Gyroscopic apparatus. S.G. BROWN Ltd. and D. Barnett. Aug. 7, 1964 [May 8, 1963], No. 18199 / 63. Heading G1C. A control system for a gyroscope 1 which is usable as a gyrocompass in a stationary vehicle and as a directional gyro when the vehicle is moving comprises means for applying a signal from a pendulum 2 attached to the gyroscope frame to generate a torque about a horizontal gimbal axis or tilt axis of the gyro 1 during use as a gyrocompass together with means for applying a torque also derived from the pendulum 2 about a vertical gimbal axis or azimuth axis of the gyro 1 to damp oscillations about the meridian plane, and means for applying a signal, equal to that from the pendulum 2 at or after the gyro 1 ceases to operate as a gyrocompass, to generate a torque about the tilt axis to provide "antitopple" control during subsequent use of the gyro 1 as a directional gyro. In use as a gyrocompass the signal from the pendulum 2 is not fed direct to the tilt amplifier 6 but is applied to a tilt storage unit 10 which comprises a motor M during the wiper of a potentiometer R14. A feedback loop is provided incorporating a resistor 26 so that the voltage level of the wiper of R14 is the same as that of the pendulum output. When it is desired to use the gyro 1 as a directional gyro a switch S is moved from its position a to position b to stop the motor M. The signal from the wiper of the potentiometer R14 is used as the pendulum signal to operate the gyro as a gyrocompass through the amplifier 6 and it or the pendulum signal is also fed to the azimuth amplifier through a resistor R15 when the switch S is in the position a to provide damping control for the gyro-compass or through a resistor R16 with the switch in the position b, to provide anti-topple control when the gyro is used as a directional gyro. Latitude correction is provided by a resolver 7 providing a signal to the tilt amplifier 6, and an additional correcting element 9 in the form of a rotating shaft driven by the normally provided navigation computer, is also provided to allow for the effects of a change of latitude when the vehicle starts to move. The signals from the tilt and azimuth amplifiers are fed to torquers acting on the tilt and azimuth axes of the gyro 1 and thus causing corresponding precessions about the azimuth (vertical) and tilt (horizontal) axes of the gyro respectively.
Patent GB-276633-A (GB)
Title: Improvements in and relating to silent chain drives
IPC: F16H7/06
Filed: 1927-07-08
Abstract: 276,633. Whitney Manufacturing Co., (Assignees of Belcher, W. J.). Aug. 30, 1926, [Convention date]. Driving - chains with separate joint pins. - Driving- chains,, which may be of the multiplelink-type, for use in automobiles &c. are built up from links 1, 3 each of which straddles and rides upon a single sprocket tooth 15, the contacting surfaces x, a, y, &c. of the chain being formed concentrically with the pivot pins B, which may be split, as shown, solid, or of the two-part rocker type. When the chain flexes about the pivot pins, the engaging surfaces do not lose contact. To avoid friction, particularly when wear occurs, recesses 11 are provided in the links above the sprocket teeth. The teeth and spaces upon sprocket wheels of different diameters with which the chain is intended to engage are so formed that the points x, a, y of contact always lie at approximately the same distance from the points of the sprocket teeth. The faces of the teeth may be straight or of other form.
Patent GB-1393989-A (GB)
Title: Methods of manufacturing rotationally symmetrical hollow composite bodies
IPC: B29C41/04
Filed: 1972-04-19
Abstract: 1393989 Casting composite articles MASCHINENFABRIK AUGSBURG-NURNBERG AG 19 April 1972 [19 April 1971] 18218/72 Heading B3F A method of centrifugally casting a hollow composite body comprises arranging a fibrous material reinforcement around the inside of a rotatable drum 2, introducing a first metal through the nozzles 4 of a device 3 to form a first layer 14 consisting of the fibrous material embedded in a matrix of the first metal, thereafter introducing a second metal through the nozzles 4 to form a second layer 15 around the inside of the first layer, and continuing rotation of the drum until the second layer has solidified and hardened. The fibrous material may be in the form of an endless wound fibre, stable fibre or fibre matting made of tungsten, beryllium, steel, boron, carbon or silicon carbide and may be initially located in a skeleton frame in the drum, the frame consisting of the same metal as the said first metal. The first and second metals may be alloys consisting principally of nickel, cobalt, titanium or aluminium, the second metal having a coefficient of expansion which is equal to or higher than that of the first. In the latter case compressive stress is formed in the first layer and a tensile stress in the second layer. The device 3 is provided with a heating coil 7 and a mixing chamber 6 into which are fed the metals to be cast. It may be rotated and moved axially within the drum 2 during the casting process. The process may be carried out in a vacuum or inert atmosphere.
Patent GB-438812-A (GB)
Title: Improvements in valve arrangements for controlling the flow of liquids, particularlyfor water softeners
IPC: C02F1/42
Filed: 1934-06-20
Abstract: 438,812. Valves. FRY BROS., Ltd., and FRY, G. F., Lion Wharf, Norman Road, Greenwich, London, and SMITH, W. T. B., Lynton, Dudley Walk, Wolverhampton. June 20, 1934, No. 18244. [Class 135] A valve arrangement for controlling the flow of water in regenerative water softeners comprises a valve chest a with a number of chambers which are connected respectively to the hard water main at c, the top of the water softener at g, the bottom of the softener at h, the domestic supply system at I and the drain at p. The communication between these chambers is controlled by pairs of lift valves, 1 and 2 being opened for softening, 3 and 4 for regeneration and 5 and 6 for backflushing. These valves are selectively operated in pairs by a rotatable face cam v.
Patent GB-1179226-A (GB)
Title: Tray Arrangement for the Dampening Unit of Printing Machine.
IPC: B41F31/06
Filed: 1968-04-17
Abstract: 1,179,226. Offset-printing machines; dampening units. MATH. BAUERLE G.m.b.H. 17 April, 1968 [17 April, 1967], No. 18247/68. Heading B6C. In an offset machine an axially reciprocable drum 8 is supplied with dampening liquid from a container 1 and ink from a fountain 6. The container comprises a readily replaceable unit in the form of a closed compartment 1a and an open compartment 1b which may easily be placed on the bottom wall of the container when the wall is swung downwardly into the position of Fig. 2. The offset blanket cylinder 11, the plate cylinder 10 and the dampening and inking roller trains may be cleaned in situ by replacing the container 1 with a similar container of cleaning fluid.
Patent GB-503589-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B9/04
Filed: 1937-07-01
Abstract: 503,589. Lenses. SCOPHONY, Ltd., and LEE, H. W. July 1, 1937, No. 18272. [Class 97 (i)] An objective corrected for chromatic and spherical aberrations consists of two convergent components each of which is compound and comprises either a double convex or a plano-convex collective-lens cemented to a dispersive lens, the glass-air surface of at least one of the collective lenses being plane. The difference between the refractive indices of the glasses used may exceed 0À5 in at least one component. In the form shown the plane glass-air surface is provided on the collective lens of the front component. The dispersive member of the rear component may also have a plane glass-air surface. In a third form plane glass air surfaces are provided on the dispersive member at the rear of the front component and on the collective member at the front of the rear component. Data are given. Specification 439,236, [Group XL], is referred to.
Patent GB-516390-A (GB)
Title: Improvements in holders for incandescent electric lamps
IPC: H01R33/97
Filed: 1938-06-24
Abstract: 516,390. Lamp-holders. WEYMANN'S MOTOR BODIES (1925), Ltd. and COOK, H. A. June 24, 1938, No. 18837. [Class 38 (i)] A lamp 6 is locked in its holder 5 by a sleeve 9 movable longitudinally along holder to a position in which it engages the bayonet pins 12 on the lamp cap. The sleeve 9 has a screw thread 10 that engages the usual threaded exterior of the holder, and at its other end has a coarse thread 11 such that when the sleeve is slackened off from its locking position, the pins 12 can be disengaged from the slots 13 and then passed along the screw thread 11 by turning the lamp. The sleeve 9 may be of moulded material and may be shaped and finished to form a reflector.
Patent GB-1337899-A (GB)
Title: Packaging apparatus
IPC: B65B25/20
Filed: 1972-04-20
Abstract: 1337899 Packaging apparatus SALDATRICI ROTATIVE AUTOMATICHE DI GIORGIO BILLI & C SAS 20 April 1972 [24 April 1971] 18358/72 Heading B8C In apparatus for packaging articles such as stockings, the garment A is placed over a slot 50 in support surface 49 and is then folded and drawn into channel 51 by a reciprocating L- shaped rod 20 which is extended from slot 50 and then rotated to bring its transverse arm across the garment before the downward stroke, and the end of which rod 20 is again rotated to disengage the garment before a reciprocable member 42 pushes the garment horizontally through channel 53 into a box 4, thereby folding the garment again. Boxes 4 are carried past channel 53 in containers 3 on endless chain 2. Rod 20 is mounted on a carriage 19 reciprocating between guides 23, and is rotated to engage and disengage the garments by the action of stops 25, 26, stop 26 being withdrawn by electromagnet 56 in response to control members detecting the absence of a box 4 on conveyer 2. Rod 20 continues to reciprocate, but does not pull down a garment. Reciprocation of rod 20 and member 42 is controlled by cam 10.
Patent GB-965882-A (GB)
Title: A self-locking threaded sleeve
Inventor: MCKAY THOMAS LORNE
IPC: F16B39/34
Filed: 1963-05-09
Abstract: 965,882. Making threaded sleeves. LONG-LOK CORPORATION. May 9, 1963, No. 18431/63. Heading B3A. [Also in Division F2] An internally and externally threaded sleeve 20 comprises a resiliently deformable plastic insert 34 inserted in an aperture in the sleeve wall so as to project on both inside and outside as shown in Fig. 6. The outer thread is of truncated form produced by a rolling process so that the material of the sleeve is of higher density on the outside. The slot may be cut by a small milling-cutter which is traversed or a large cutter which is merely fed to the required depth as in Fig. 12. The plastic insert may initially be of cylindrical section. There may be an interference fit between the sleeve 20 and the member into which it is screwed. The recess may be circular.
Patent GB-146437-A (GB)
Title: Improvements in or relating to safety devices for welding installations
IPC: A62C4/02
Filed: 1920-07-03
Abstract: 146,437. Drõger, A. B., (trading as Drõgerwerk, H. & B. Drõger), (Assignee of Sternberg, F.). March 1, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Gas supply.-In order to prevent the flame from flashing back into the water compartment used to prevent explosion in a welding burner, the gas is passed through a disk d of porous unglazed earthenware or white beech or other wood forming the base of a compartment b having a perforated cover e and filled with iron filings. The compartment b is fitted in a two-part chamber inserted between the water compartment and the burner pipe. The force of the explosion if a flash-back occurs is relieved by a pipe c which is normally closed.
Patent GB-894670-A (GB)
Title: Improvements in or relating to cold-cathode tube circuit arrangements
IPC: H01J17/04
Filed: 1958-06-10
Abstract: 894,670. Discharge tube relay circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 10, 1958 [June 13, 1957], No. 18524/58. Class 40(6). [Also in Group XL(b)] A relay-operating circuit comprises a coldcathode gas-filled triode 4 having the relay winding 1 connected in the cathode circuit and shunted by a capacitor 2, an integrating element 10 connected in the trigger circuit and a current-limiting resistor 7 in the anodecathode circuit. As described, when the level of illumination on the photo-electric cell 6 is is sufficient, the integrating capacitor 10 aquires sufficient negative charge from winding 11 to ignite the trigger gap of the gas tube 4, so that the main gap fires on positive half cycles, energizing relay 1. The cathode is held positive by the long time constant of relay 1 and capacitor 2 hence the tube will fire on lower voltages across capacitor 10 during succeeding cycles. Alternating voltage bias is fed to the trigger electrode via capacitor 10 from winding 13. The invention ensures positive relay operation when the trigger voltage is near its minimum value and is suitable for use in flame-guarding and twilight switching systems.
Patent GB-561436-A (GB)
Title: Improvements in electrically heated pads
IPC: H05B3/34
Filed: 1942-12-30
Abstract: 561,436. Electrically heated pads. JONES, T. B. Dec. 30, 1942, No. 18547. [Class 39 (iii)] A heated pad for domestic or hospital use comprises a heater 10 of wire 14 wound on an asbestos core 13 and insulated by a wrapping 15 of asbestos or glass, the heater being sewn by asbestos thread 11 to one half of a sheet of glass cloth 12. A thermostat may be included in the circuit. The sheet 12 is placed on a thick sheet of glass wool 19 backed by cotton net 20, the assembly being folded double and placed in a fireproof cotton bag 21, enclosed in an air-tight and water-tight bag 22 of varnished glass cloth. A bag 32 of soft material is added, and finally a bag 23 of washable cotton. In a modification for industrial use, the glass wool 19 is placed on one side only of the pad, and the assembly placed in an envelope of metal gauze to which the earth lead of the cable is connected. The whole is then placed in a heat-resisting waterproof fabric bag having eyelets or the like for attaching it to the article heated.
Patent GB-1057195-A (GB)
Title: Improved hydrocarbon binding agents
IPC: C08L95/00
Filed: 1964-05-05
Abstract: A hydrocarbon binding agent contains an elastomeric copolymer of two or more mono-olefins, or of one or more mono-olefins and an unsaturated endocyclic hydrocarbon containing a bridge formed of one or more methylene groups.  The hydrocarbon binding agent may be straight-run bitumen, cut-back bitumen, road oil, tar, or a petroleum derived resin.  Specified unsaturated endocyclic hydrocarbons are norbornene, 5-methylene norbornene and dicyclopentadiene. Incorporation of the copolymer into the binding agent is aided by mixing the copolymer with a flux for the binding agent, e.g. a distillate, solvent extract, raffinate or coal tar, or by dissolving the copolymer in a solvent such as trichloroethylene or monochlorobenzene and finally removing the solvent.  In the example an ethylene/propylene copolymer rubber is incorporated into a straight-run bitumen with the aid of a phenol type extract of a Tia Jana crude.
Patent GB-877068-A (GB)
Title: Electric mixer
IPC: A47J43/044
Filed: 1959-06-01
Abstract: 877,068. Electric motors. SUNBEAM CORPORATION. June 1, 1959 [Aug. 25, 1958], No. 18644/59. Class 35. [Also in Group II] The motor of a domestic food mixer is supported by means carried by the base unit 36 which is secured by screws 142, 143 to the casing 140 integral with the handle 140b. The base unit 36 is shaped at 36a to receive a cover 37, a gear chamber being thus enclosed. The stator 48 is tapped to permit speed control and is positioned by a key 36q on the base 36 engaging a keyway 48c, a single screw 42 and two screws 43 clamping the stator to the base. The rear bearing support 36# and brush holder supports 36h, 36g are integral with the base 36, and a strain-relief member 118 for the motor cable is held in opposed half-circular recesses in the base 36 and the casing 140 when they are bolted together. The brush holders each consist of a non-conducting member 86 which is held in position by engaging notches 89 in notches in the upper ends of the posts 36h, and by a screw 90 which secures a slotted lug 86b on the member 86 to the post 36g. A metal brush holder 91 is slidable in a slot in the member 86 between shoulders 86c, a tongue 91d engaging under the connecting part at the end of the slot and wings 91c engaging under the shoulders 86c. The brush is of conventional spring-pressed type, and the conductor is held under a tag 91b. The forward bearing is supported in a recess in the base 36 and is located by a leaf spring in a complementary recess in the gearcase cover 37. The motor switch is as described in Specification 745,575. The upright 32 is secured to the platform 174 by a spring 182 which passes through an opening 181 and is held by teeth 183. The base 36 has a tapered slotlike recess 172 into which fits a correspondingly tapered plate 173 which is pivoted at 186 in U- shaped straps 188, 189 riveted to the upright 32. A spring-pressed ball detent 185 is engageable with one or other of recesses 173c, 173d whereby the unit is held in a mixing position, or in a raised position clear of the mixing bowl.
Patent GB-438670-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: H03G3/26
Filed: 1934-06-25
Abstract: 438,670. Valve circuits for wireless reception. COLE, Ltd., E. K., Priory Crescent, Soutnend-on-Sea, INSKIP, F. A., Trelawney, Carlingford Drive, Westcliff-on-Sea, and MARTIN, A. W., 1, Thames Close, Leighon Sea. June 25,1934, No. 18649. [Class 40 (v)] Interchannel noise suppression is effected without an extra valve and the degree thereof is adjustable simultaneously with a manual control of the output volume. In one embodiment, a high-frequency amplifier or frequency changer 1 is followed by an intermediate frequency amplifier 2 and diode rectifier 11. The cathodes of valves 1 and 2 are connected by resistances 6, 7 between the junction of which and earth is connected the manually operated variable volume control resistance 8, which is also carrying current from the H.T. source through the resistance 18. The grid circuits of valves 1, 2 are connected through resistances 17, 16 respectively to a point 15 on the load resistance 14 of the diode 11, which is part of a diode pentode output valve 12 the common cathode of which is connected through a resistance 13 to earth. When the slider of resistance 8 is at its top position the grids of valves 1, 2 are positively biassed from the resistance 13 in the absence of or with weak signals fed to the valve 1. With stronger signals a voltage is developed across the diode load resistance 14 opposing said positive muting bias, increasing the amplification of valves 1, 2 and by a cumulative action tending to still further increase the voltage across the resistance 14. The muting bias on valves 1, 2 is thus removed, and increasingly negative A.V.C. bias is produced with increased signal strength. When the slider of resistance 8 is moved downwards the positive muting bias on valves 1, 2 is opposed by an increasing potential and at a predetermined point is overcome. Thereafter further movement of the slider reduces the amplification, the noise suppression circuit being disabled. In a modification, Fig. 2 (not shown), the grid current which flows when the grids of the controlled valves are positively biassed produces voltage for disabling a separate demodulating diode.
Patent GB-423790-A (GB)
Title: Manufacture and application of polymerisable products
IPC: C08F20/20
Filed: 1933-07-03
Abstract: Polymerizable substances are manufactured by reacting acrylic or methacrylic acid with a dihydric alcohol under the conditions usually used in esterification to form a diacid ester, if desired in the presence of a polymerization inhibitor, e.g. copper powder. As dihydric alcohols may be employed the unsubstituted glycols, e.g. ethylene glycol or the propanediols, or the monoethers and monoesters of glycerol.  The products are polymerized, alone or in admixture with one another or with other substances which may be polymerizable, with or without other additions such as organic or inorganic fillers. The polymerization may be effected by the action of light, or by heating, e.g. to 100 DEG  C., alone or with an oxygen catalyst, e.g. benzoyl peroxide.  The polymerization products may be employed as electric resistance materials. Textiles may be treated with the monomeric substances which are then polymerized.  Examples describe the manufacture of ethylene glycol dimethacrylate and diacrylate, the polymerization of each of these substances alone and of the former in admixture with methyl methacrylate and with styrene.  Vinyl acetate is also specified as a substance with which interpolymerization may be effected.  Specification 371,396 is referred to.