baber/WOPTO huggingface dataset:
Patent GB-455335-A (GB)
Title: Improvements in or relating to the production of magnesium hydroxide
IPC: C01F5/14
Filed: 1936-02-07
Abstract: Magnesium hydroxide monohydrate Mg(OH)2.  H2O is used for adsorbing dyes or other colouring matter from solutions.ALSO:Magnesium hydroxide approximating to the formula Mg(OH)2.H2O is obtained by removing water from a suspension of the hydroxide in water to obtain a solid material containing 20--25 per cent water, at least the final stage of dehydration being effected by contact with superheated steam.  In carrying out the process, magnesium hydroxide may be precipitated from brine by calcium hydroxide, the separated precipitate be purified by downward passage through an up-flowing body of water, the purified hydroxide slurry be heated to 70--100 DEG C., be de-watered to a paste like consistency, and then passed as a ribbon or cake of \ba1/8\be to 1 inch thickness through a tunnel drier in co-current with superheated steam, the temperatures at the inlet and outlet ends of the drier being respectively 165 DEG  C., and 110--120 DEG  C.  The product has high adsorption power, and may be used for filtering and decolourizing liquids, for instance for decolourizing petroleum hydrocarbons or removing caramel from sugar, or for adsorbing dyes.  Pharmaceutically it may be used in the production of anti-acid powders and tablets, cosmetics, tooth pastes and powders, face powders, oil emulsions and hand lotions, whilst by grinding the product and dispersing it in water in an agitator or colloidal mill cream of magnesia is obtained.ALSO:Magnesium hydroxide monohydrate Mg (OH)2.H2O is used for removing caramel from sugar solutions.
Patent GB-189698-A (GB)
Title: Method for the treatment of monazite and other phosphate ores
IPC: C01B25/18
Filed: 1922-02-09
Abstract: Phosphoric acid mixed with excess of sulphuric acid, is obtained by treating with sulphuric acid phosphate ores of thorium and rare earths, such as monazite.  The sulphates separate and are removed mechanically.  Alternatively the reaction mixture may be poured into dilute sulphuric acid and a part of the thorium separates as sulphate with the rare earths.  The precipitate is separated, the thorium separated from the rare earths in known manner, and added to the solution, which is then concentrated until the thorium sulphate separates.ALSO:Phosphate ores of thorium and rare earths such as monazite are decomposed by strong sulphuric acid, and the insoluble sulphates are separated mechanically from the liberated phosphoric acid, the sulphates being freed from remaining phosphoric acid by washing with strong sulphuric acid, after which the washings are used for treating a fresh batch of ore.  The thorium is separated from the mixed sulphates in known ways.  Alternatively, the reaction mass may be diluted with dilute sulphuric acid which causes most of the thorium to dissolve, while a part of the thorium and the rare earth sulphates remain insoluble in a crystalline condition.  The thorium, separated from the rare earths in known manner, is added to the acid solution, and thorium sulphate is subsequently recovered by concentrating the solution when it again becomes insoluble.
Patent GB-1044802-A (GB)
Title: Improvements in or relating to the manufacture of carbon black
Inventor: RUBLE THEODORE ALLEN
IPC: C09C1/50
Filed: 1964-01-29
Abstract: In the production of furnace or oil black where a normally liquid feedstock is injected into a highly turbulent, burning or pre-burned, mixture of fuel gas and air, the feedstock is a blend of 85 to 25 parts by weight of a residual oil produced by the thermal and/or catalytic cracking of a petroleum distillate, having a H:C atomic ratio of 1.2 or less and a  DEG API gravity of 10 or less together with from 15-17 parts by weight of a petroleum distillate having a H:C atomic ratio of 1.30 or greater and a  DEG API gravity between 10 and 30.  The preferred composition range is 55-75 parts by weight of residual oil and 45 to 25 parts by weight of said distillate.  The residual oil component of the blend preferably has a  DEG API gravity of not greater than 5 and the distillate component a  DEG API gravity between 15 and 30. An example of the preferred method is given, and the product is a H.A.F. black having lower heat build-up characteristics in cured rubber compositions than blacks preferred from unblended feedstock.
Patent GB-228713-A (GB)
Title: Improvements relating to chairs, settees and the like
IPC: A47C4/02
Filed: 1924-02-15
Abstract: 228,713. Hudspith, W. Feb. 15, 1924. Collapsable seats.-A chair or settee of the type constructed in sections adapted to be readily detached, comprises a back, two sides removably hinged thereto, and a seat which engages the back and sides to hold the latter in place. As shown, the sides b are socketed to fit on pins e mounted on the back; the seat d has rearwardly projecting tongues g engaging the back and a transverse bar k in front with knobs n engaging slotted brackets p on the sides.
Patent GB-397029-A (GB)
Title: Process for re-shaping the profiles of rails by forging
IPC: B21K9/00
Filed: 1933-02-09
Abstract: 397,029. Forging rails. B A M A G - MEGUIN AKT.-GES., 10, Reuchlinstrasse, Berlin. Feb. 9, 1933, No. 4000. Convention date, Nov. 5, 1932. [Classes 83 (ii) and 83 (iv).] In making a rail for connecting rails of different section, a length 10 of section A is reshaped at the end to section B between press tools 2, 3, 9. The die block 6 has inclined sides engaging dies 2, 3 between which the railend is positioned. The flow of metal at the bottom of the rail is controlled by a shape of a member 7 within the die block. On descent of the press head 9 the dies 2, 3 are forced together by the inclined sides.
Patent GB-1164601-A (GB)
Title: Process for Polymerising Chloral
Inventor: MAY HERBERT
IPC: C08G2/14
Filed: 1966-01-28
Abstract: 1,164,601. Chloral polymerization. BRITISH INDUSTRIAL PLASTICS Ltd. 13 Jan., 1967 [28 Jan., 1966], No. 4031/66. Heading C3P. Homo- and copolymers of chloral are prepared using as catalyst (1) antimony pentafluoride; (2) substituted antimony pentafluorides; (3) coordination complexes of antimony pentafluoride; or (4) ionic compounds containing the hexafluoroantimonate anion or a substituted hexafluoroantimonate anion. Specified comonomers are styrene, norbornene, norbornadiene, and substitution products thereof, #-propiolactone, trioxan, vinyl ethers, and 3,3-bis(chloromethyl) oxacyclobutane. The process may be carried out in bulk or in an inert liquid medium. In the examples, chloral is polymerized alone (1,5), or with n-butyl vinyl ether (2), styrene (3), 3,3-bis (chloromethyl) oxacyclobutane (4, 6-8) and trioxan (9), using SbF 5  (1-8), and SbF 3 Cl 2  (9) as catalysts.
Patent GB-581075-A (GB)
Title: Improvements in vibratory feed mechanism
IPC: B07B1/40
Filed: 1945-02-19
Abstract: 581,075. Jigging-conveyers. AVERY, Ltd., W. & T., and PAGE, A. E. Feb. 19,1945, No. 4096. [Class 78 (i)] In vibratory feed mechanism of the kind described in Specification 556,748 a subsidiary tray b is resiliently connected to and mounted within the main tray c by a cranked flexible strip b<1>. Vibrations of different periodicities are set up simultaneously in the trays by a pneumatic device d.
Patent GB-820493-A (GB)
Title: Hose, and method and apparatus for manufacturing the same
IPC: B29C48/09
Filed: 1956-02-09
Abstract: <PICT:0820493/III/1> <PICT:0820493/III/2> A multi-layer fabric-reinforced plastic hose is constructed from a fabric-covered inner core of resinous material by wetting the fabric-covered core with a liquid plasticiser, applying an outer layer of resinous material and curing.  The braided core wetted with plasticiser may be passed through a plastisol bath, thence through an evacuated space in order to remove dissolved or entrapped air, then again through the plastisol bath, thence through a wiper die which removes excess plastisol and which may be so arranged as to ensure the completeness of the coating by a supplementary reservoir filled with plastisol carried along by the hose itself, and finally into a heating chamber. The resins specified are polymers of vinyl acetate, vinyl chloride, or vinylidene chloride or their copolymers.  The plasticising agents specified include esters such as di-octyl phthalate, tricresyl phosphate or tetrahydrofurfuryl oleate, hydrocarbons such as partly hydrogenated terphenyls, chlorinated hydrocarbons such as chlorinated diphenyls or ethers such as benzyl ether.  As shown (Fig. 3), an extruded inner core 11 is passed first through a cooling water-bath 13, and is thereafter braided at 18, then passed through a bath of plasticiser 19 which may be heated, a vacuum chamber 20b, a heating chamber 20a, a bath of plastisol 22, a wiper die 27, a further vacuum chamber 25a and final curing chambers 28 and 31.  An alternative apparatus is shown (Fig. 5) wherein the core 66, previously braided and coated with plasticiser, passes in turn through a heater 70, a plastisol bath 73, an inverted U-shaped vacuum chamber 80-81, legs of the U dipping into the plastisol in the bath 73, beneath a pulley 90, through wiper die 93, curing chambers 96, 101 and a final cooling water bath 104.  U.S.A. Specification 2,645,249 is referred to.
Patent GB-574453-A (GB)
Title: Electron devices of the magnetron type
IPC: H01J25/50
Filed: 1942-03-28
Abstract: 574,453. Electron oscillators. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.). March 28, 1942, No. 4165. [Class 39 (i)] A unidirectional voltage is applied between a pair of plane parallel plates and a constant magnetic field is established parallel to the plates. A source of electrons is placed so that electrons enter and travel laterally'in the space between the plates in a series of approximately cycloidal hops, the plate spacing, voltage, and magnetic field strength being so adjusted that the electrons just fail to reach either of the plates. The electrons are then subjected, either before or during passage through the plates, to an alternating electric field whose lines of force are perpendicular to the plates and whose frequency is substantially that of the hops, the adjustments being such that those electrons which have gained energy from the alternating field are removed therefrom by collection on one of the plates, so that they take no further part in the operation of the device. Electrons emitted from filament 47, Fig. 5, travel in cycloidal hops between the plates 45, 46 under the influence of the positive potential on 45 ; plate 46 is at or near cathode potential. If an alternating potential of frequency equal to that of the electron motion is applied to plates 45, 46 by input line 44, out-of-phase electrons emitted during the positive half-cycle will absorb energy from the field and increase the amplitude of successive cycloidal hops, while in-phase electrons emitted during the negative half-cycle will give energy to the field and their amplitude will decrease. A net gain of energy will result if out-of-phase electrons are removed rapidly from the field ; this may be done by causing them to strike the plate 45, or the plate 46 if this is provided with a suppressor grid for secondary electrons. In the Figure, out-ofphase electrons are removed by separate plates 48, 49 which are either nearer together, or at a higher voltage, than plates 45, 46 or are provided with baffles 50. In-phase electrons then give up energy to plates 51, 52 which are connected to output line 53. The spent electrons are collected either by a target 54 or by a projection 34 on plate 51. Fig. 6 shows a repeater in a wave-guide, from which it is sealed by glass partitions 57. Projections 60, 61 from the wall of the guide terminate in plates 64, 65, plate 65 being insulated from 60 and at a positive potential. Electrons from cathode 62 follow cycloidal paths, out-of-phase electrons being removed by a projection 67. In Fig. 9, plates 121, 122 form a quarter-wave line terminated by capacity 123. Electrons emitted from strip cathode 127, or an electron gun, give up energy in decreasing cycloidal hops until they strike the collector 125. A suppressor grid 128 is provided. The plates may also be tuned to full-wave oscillation, being supported at the nodes and tapped at. a suitable point by the output line.
Patent GB-851877-A (GB)
Title: An improved metering roller for apparatus for distributing fertiliser, seeds, powderor the like
IPC: A01C15/00
Filed: 1958-02-10
Abstract: 851,877. Fertiliser distributers. WALLIS, G. L. Feb. 10, 1959 [Feb. 10, 1958], No. 4264/58. Class 6(1). [Also in Groups VIII and XXX] A metering or distributing roller for apparatus for distributing fertiliser or powder comprises a number of axially aligned sections 2 of a deformable resilient material such as rubber each formed with a circumferential concavity and separated by discs 3 of a relatively hard material and means such as cam nuts 5 for exerting axial pressure in the sections for varying the depth ' d ' of the concavities. The concave surface of the sections may be formed into a plurality of longitudinally extending flutes or fins or alternatively part spherical pockets may be formed in the surface of the sections. The discs may be formed of polyvinyl chloride and may be bonded to the sections. The sections 2 may be expanded by means of liquid forced through a perforated tube on which the sections are mounted. Specification 772,200 is referred to.
Patent GB-646061-A (GB)
Title: Improvements in or relating to fluid operated motion stabilising apparatus
IPC: F16F9/504
Filed: 1947-02-14
Abstract: 646,061. Rail vehicle undercarriages. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 14, 1947, No. 4267. Convention date, Oct. 19, 1945. [Class 103(vi)] [Also in Group XXIX] Stabilizing apparatus for rail vehicles is controlled by a pilot device comprising an inertia mass responsive to the oscillations to be stabilized and engaged by elastic centering means, the pilot device being provided with means responsive to a persistent deflection of the mass, as for instance when a vehicle proceeds on a curved path, which act with a time delay on the elastic centering means so as to eliminate the effect of the persistent deflection on the control exercised by the mass. Fig. 1 shows stabilizers 16, 17 for vertical oscillations arranged between the truck bolster 10 and equalizer bars 4, 5 and a stabilizer 20 for lateral pendulous oscillations arranged between the bolster 10 and the truck frame 1. The latter is supported on springs 2, 3 and is articulated to a platform 7 carrying the bolster supporting springs 11, 12. The stabilizers 16, 17, 20 are controlled by pilot devices 18, 19, 24 respectively (see Group XXIX). The pilot devices and the stabilizers they control are generally similar to those described in Specification 644,771. Thus, the stabilizer 20 comprises a doubleacting piston arrangement 26, 27, Fig. 2, connected by linkage 31, 21, 22 to the truck frame and supplied from synchronous pumps 38, 39 of equal capacity by "compression conduits 45, 65 and " rebound " conduits 55, 75. From the conduits fluid returns to the pump inlets under the control of a pilot device 24 which, as shown diagrammatically in Fig. 2, comprises an inertia mass 42 pivoted at 43 and connected to valves 58, 68 by which fluid passes to a return conduit 60. The elastic centering means above referred to comprise springs the abutments of which are rigidly connected and supported by opposed bellows having restricted inlets and outlets for fluid to provide the necessary time delay.
Patent GB-974353-A (GB)
Title: Improvements in or relating to dust-laden air filtration apparatus
Inventor: PRATT JOHN WILLIAM
IPC: F24F13/28
Filed: 1960-02-06
Abstract: 974,353. Bags. BRITISH UNITED SHOE MACHINERY CO. Ltd. Feb. 3, 1961 [Feb. 6, 1960], No. 4298/60. Heading A4G. [Also in Division B1] A canvas bag 16, Fig. 2, of the Gladstone type removably located beneath dust-laden air filter sleeves (see Division B1) to receive dust falling therefrom has L-sectioned U-shaped metal closure members 40, 42 secured by bolts 55 to the upper portions of the bag sides and hinged to each other at 52, 53. A pair of handles 58, 59 are secured to opposite sides of the bag.
Patent GB-867457-A (GB)
Title: A chair
IPC: A47C7/00
Filed: 1959-02-06
Abstract: 867,457. Seats and resilient mountings therefor. MILLER Inc., H. Feb. 6, 1959 [Dec. 1, 1958], No. 4326/59. Classes 52(1) and 52(2). A moulded resin chair 10 has a shell seat member 12 with central portion 14 and ascending arm portions 18 flared outwardly to form attachment pads 21 for arm rests 28 forming part of a moulded back rest member 26 and adhesively bonded to the pads 21 to form the sole support for the back rest. The shell 12 is supported by leg support means 34 having a spider bracket 35 with a resilient mount 36 at the end of each arm and bonded to member 12 by adhesive. In a modification Fig. 12 a chair 40 has a seat shell 42 identical to shell 12 but the backrest member 57 is supported on each side by a rod member 59 with a terminal fitting 60 having ball-headed prongs received in resilient cups 63 bonded to shell 57, the rod 59 being connected to pad 21 by a rigid block 74 adhesively bonded to the pad. U.S.A. Specification 2,649,136 is referred to.
Patent GB-412681-A (GB)
Title: Control of change-speed mechanism for motor-vehicles
IPC: B60K23/02
Filed: 1933-02-13
Abstract: 412,681. Controlling change speed gearing. M.G. CAR CO., Ltd., and COUSINS, H. E. C., Pavlova Works, Abingdon-on- Thames. Feb. 13, 1933, No. 4331. [Class 80 (ii).] Comprises in the drive of a motorvehicle the combination of change-speed transmission mechanism 2, Fig. 1, wherein various preselected speeds are brought into action alternatively by friction means on the actuation of a main gear control 4, with a main friction clutch 5 between the said mechanism 2 and the engine 6, such clutch being released by servo means controlled automatically either by, or from, the said main gear control 4, or by the accelerator or other engine control. Specifications 328,660, [Class 80 (ii)], and 370,442 show change-speed mechanism of this kind wherein the main gear control is a pedal mounted in the place usually occupied by the clutch pedal, the release of which pedal applies a preselected brake so as to bring in the corresponding gear ratio. Thus a speed in such mechanism in a gear-box 2 which has been preselected by moving a lever 3, is brought into action by releasing the main gear control pedal 4. According to this invention, a main friction clutch in a casing 5 between the gear-box 2 and the engine 6 is servo-released on depression of the pedal 4 which precedes the release. The depression thrusts a valve 8, Fig. 2, to the right so as to connect the cylinder 9 of a servomotor to engine suction in a pipe 11. A piston 12 is thus sucked to the right so as to turn a lever 13 to the left and so disengage the clutch 5 against its spring, not shown. In a modification, an auxiliary pedal is arranged over or in front of the main control pedal 4 so as to be moved before the pedal 4. This auxiliary pedal operates the control valve 8 or electric contact of the servomotor. In the arrangement of Fig. 3, the main clutch 5 is released by fully releasing the accelerator pedal 15. To change, say, from second to third speed with this arrangement, after the preselector lever, not shown, has been set, the driver releases the accelerator pedal 15 so as to open the main clutch 5, and then presses and releases the main gear control pedal, not shown, whereupon the drive is taken up on the new speed as soon as the accelerator pedal 15 is again depressed.
Patent GB-1076657-A (GB)
Title: Method for consolidating incompetent strata in wells
IPC: E21B33/138
Filed: 1965-02-02
Abstract: The glycidyl ether of hydroxypropyltrimethoxysilane is prepared at room temperature in the presence of a platinum catalyst by reacting trimethoxysilane with allyl glycidyl ether. The ether is incorporated in phenol formaldehyde, novolac, epoxy, urea-aldehyde and melamine aldehyde resins to give settable resins resistant to erosions and chemical action.
Patent GB-1085303-A (GB)
Title: Liquid petroleum to gas converter
IPC: F02M21/00
Filed: 1965-02-02
Abstract: 1,085,303. Mixing air and gas. BORGWARNER CORPORATION. Feb.2, 1965 [Feb.10, 1964], No.4562/65. Heading F1B. [Also in Divisions F2 and F4] A liquid-petroleum gas-converter is put into operation by manually actuating a switch through one of two sets of levers, one of said sets being also coupled to a diaphragm 35, Fig. 7, subjected on one side to vacuum in a chamber 24 e. g. derived from an engine manifold and to atmospheric pressure on the other side in a chamber 26. Upon releasing the manual actuating means the switch opens unless vacuum is acting in chamber 24. Closure of the switch energizes a solenoid 71, Fig.10, to lower an armature 88 and enable a closure member 93 to fall and open a passage from an inlet 14 to a passage 103. The closure member 93 has a channel 95 therethrough which is controlled by the adjacent end 91 of the armature so should the member 93 not open upon energizing the solenoid 71 the end 91 opens the channel 95 after which the solenoid can unseat the member 93. Liquid in passage 103 flows through a pressureregulating valve (108), Fig.9 (not shown) and expands into gaseous form in a space (116a) from where it flows through heat exchanger 118, Fig. 7, surrounded by engine coolant to an outlet via a chamber 27 on one side of a spring-loaded diaphragm 50, the other side of which defines the chamber 26. The diaphragm 50 is connected to the pressure-regulating valve (108) by a lever 140, a link 135 and adjustable spring-loaded lever (127), Fig. 8 (not shown). The solenoid 71 is cooled by atmospheric air from chamber 26 due to flow therearound caused by motion of the diaphragm 50.
Patent GB-636457-A (GB)
Title: Improvements in or relating to toweling dispensing devices
IPC: A47K10/28
Filed: 1946-02-14
Abstract: 636,457. Towelling dispensing devices. STEVENS, A. H. (Steiner Sales Co.). Feb. 14, 1946, No. 4612. [Class 18] A dispensing device for towelling comprises two upright plates 15, 16 having openings 17, 18 covered by bearing plates 19, 20, supporting a measuring roller 27 and a soiled towel take-up drive roller 28 and through which the rollers can be withdrawn when the bearing plates are removed. The bearing plates also support the ends of a rod 42, carrying a plate 43 separating the clean from the soiled towelling, and a member 66 of a stop device which coacts with a member 55 mounted on the end of the roller 28. Removal of the member 55 from the end of the roller 28 permits the plate 19 and the stop member 66 to be removed as a whole. A stop member 71 preventing reverse rotation of the rollers is also mounted on the plate 19. The rollers are connected by a chain and sprocket gearing which, together with both rollers, can be withdrawn as a unit through the opening 17 when the plate 19 is detached. The bearings in the plates 19, 20 are plain bearings such that the rollers can slide out when a plate 19 or 20 is detached. Specification 602,046 is referred to.
Patent GB-390926-A (GB)
Title: Improvements in electrical coupling arrangements for thermionic valve amplifiers
IPC: H03J3/08
Filed: 1932-02-16
Abstract: 390,926. Valve circuits for wireless reception. POLLAK, J. E., 20, Holborn, London.-(Fichlander, C. ; 160, West 95th Street, New York, U.S.A.) Feb. 16, 1932, No. 4639. [Class 40 (v).] In a radio-frequency amplifier in which volume control is effected by varying the coupling between the output of valve P and the tuned input circuit L, S of valve Q, variations in the tuning of circuit L, S due to alterations of coupling are compensated for by a circuit R simulating the output circuit of valve P, and variations in the inductance m due to alterations in the tuning of the circuit L, S are compensated for by mechanically linking the tuning condenser S to the volume control. The coils m, L, n are arranged in staggered relation, the volume control moving the coil L in a direction at right-angles to the flux therethrough, while the tuning control moves the coil L in the direction of the flux. Specification 364,580 is referred to.