baber/WOPTO huggingface dataset:
Patent GB-1014892-A (GB)
Title: Processes for producing titanium dioxide pigments
IPC: C22B34/12
Filed: 1962-08-28
Abstract: Titanium dioxide pigment is made from a titaniferous material by a process which comprises digesting the titaniforous material in concentrated sulphuric acid to form a digestion cake, and dissolving the digestion cake in aqueous media to produce a titanium sulphate-iron sulphate solution, wherein the ratio of the digestion cake to be aqueous media is adjusted so that there is obtained an initial titanium sulphate solution with 80 to 180 grammes titanium dioxide per litre, which solution is treated to reduce the ferric iron to the ferrous state, thermally hydrolysed to precipitate an initial fast filtering titanium hydrate therefrom, the initial titanium hydrate being de-liquored to produce an initial filter cake having at least 40% solids, digesting the filter cake in concentrated sulphuric acid in the ratio of 1.3 to 2.5 parts by weight of sulphuric acid for each part of titanium dioxide in the filter cake to form a final digestion cake, dissolving the final digestion cake in aqueous media to produce a final titanium sulphate solution with 200 to 300 grammes titanium dioxide per litre, finally hydrolysing the final titanium sulphate solution to precipitate a final titanium hydrate substantially free from colour degrading impurities, and then separating the final titanium hydrate and processing it in a known manner to a titanium dioxide pigment.  Preferred features of the process include drying the initial filter cake to provide solids content of 80% to 90% prior to digestion, digesting the filter cake with sulphuric acid of concentration of 80% to 98%, heating the initial titanium sulphate solution to 50 DEG  to 100 DEG  C. and adding the heated solution at a predetermined rate to water having a temperature of 50 DEG  to 100 DEG  C. to effect hydrolysis and filtering the titanium sulphate solution before hydrolysis.  The examples which also include the preparation of titanium dioxide by prior art commercial processes for comparison, give detailed analytical data of the raw titaniferous ore, the impurities present in the first filter cake, the impurities present in the final pigment and reflectance values of the final products. Reference is made in the description to Specification 102,059 wherein a prior art process is described which involves several digestion and re-digestion stages.
Patent GB-262962-A (GB)
Title: Improvements in the art of weaving and in looms therefor
IPC: D03D41/00
Filed: 1925-12-31
Abstract: 262,962. Nicolet, W. Dec. 31, 1925. Picking-motions; checking shuttles; reeds.-In a loom in which two wefts are thrown in consecutive sheds formed simultaneously by two groups of warps, the sheds are formed by eyed healds 40, 19<b>, Fig. 6, mounted on levers 41, 44, which also carry guide-combs 43, 47. A weft inserter 9, Fig. 6, carrying hooks 9<a> is picked between shuttle-boxes 23, Fig. 4, through a race formed by slotted teeth on levers 19a carried by the levers 44, the shuttle-boxes being movable with the levers 44 if necessary. Pickers 22, Fig. 4, for each box 23, are withdrawn alternately against spring action by interconnected levers 26 actuated from an eccentric 27 on a half-speed shaft 30. Each picker is locked in backward position by a catch 31 until the lever 26 in its return motion shifts a rod 33 so that a tappet-bolt 35 carried thereby raises the catch 31. Each shuttle-box carries a checkspring. A second weft-inserter 10, carrying one or more weft-eyes 37, Fig. 6, is thrown through a race-tube 20 by similar picker-mechanism. To prevent the shed from being reversed if the inserter 9 is not properly boxed, when the shuttle is boxed at either side it holds a lever 75, Fig. 10, so that a plate 76 thereon contacts with plates 77 to close an electric circuit 74 for soleuoids 72, which raise their cores 73. The cores 73 in turn oscillate angle-levers 69, Fig. 6, to remove catches thereon from beneath a rod 71 on the levers 41, so that the latter may be depressed. If the shuttle is not properly boxed, the catch-lever 69 prevents the shed from being reversed. Beat-up motions.-Two reeds 13, Fig. 6, are mounted on levers 48, which are on a common pivot on the end of levers 49 and are relatively positioned by springs 50. The lever 49 is linked to a lever 53 actuated by a cam 54, while the rear lever 48 is linked to a cam-actuated lever 57. When the weft is thrown, the reeds 13 are lowered behind the front and rear portions of the weft loop 11; the loops are then beaten up, and, when the front lever 48 strikes a stop 60, the reeds close up to position the weft correctly; the reeds are then raised and returned to their original position. The other weft when thrown extends diagonally across the open shed, and is pushed up parallel and close to the crossing point of the shed by one of two hooks 14 on levers 61, positioned at either side of the loom, and actuated alternately from cams 62 on the halfspeed shaft 30. A reed 15 rises behind the weft when the shed is reversed, and beats it up. The reed 15 is mounted on bell-crank levers 64 pivoted on cam-controlled levers 65. The levers 64 are spring-pressed against the cam-actuated' rolls 58 on the levers 57, and are similarly actuated. When the beat-up is finished, the reed 15 is lowered and returned to its original position.
Patent GB-912309-A (GB)
Title: Improvements in or relating to mixing machines
Inventor: HARRISON KENNETH JAMES
IPC: B28C7/08
Filed: 1960-09-27
Abstract: 912,309. Concrete mixers. LINER CONCRETE MACHINERY CO. Ltd. Sept. 18, 1961 [Sept. 27, 1960], No. 33101/60. Class 86. [Also in Group XXX] In a concrete mixer 10 the loading skip 14 is raised and lowered by a rotary hydraulic motor 22 acting through reduction gearing 21 and winding ropes 23, and manually controlled by a valve 25. The motor is preferably reversible and may operate at different speeds for raising and lowering the skip ; alternatively separate motors may be provided. The motor acts as a brake to hold the skip stationary when the valve is closed; there may be an additional valve. The skip may be guided by rails 12, 13. In a modification (see Fig. 3, not shown) the motor is incorporated in one of the upper winding drums, the shaft of the motor being held stationary and its casing serving as the drum.
Patent GB-919054-A (GB)
Title: A new or improved cushion
Inventor: BALLANTYNE HENRY
IPC: A47C27/08
Filed: 1960-09-27
Abstract: 919,054. Cushions &c. BALLANTYNE BROS. & CO. Ltd., D. Aug. 28, 1961 [Sept. 27, 1960], No. 33133/60. Class 52 (4). A cushion comprises a rectangular transparent packing having means for opening and temporarily closing the packing and a rug within the packing folded into a rectangular shape to fill the packing and so that the edges of the rug are unobservable from outside the packing.
Patent GB-1120106-A (GB)
Title: Improvements in devices for securing electric bulbs in concave reflectors
IPC: F21V19/00
Filed: 1965-08-04
Abstract: 1,120,106. Vehicle lamps. ROBERT BOSCH G.m.b.H. 4 Aug., 1965 [8 Aug., 1964], No. 33275/65. Heading F4R. In a vehicle headlamp, a flanged holder 2 for the bulb 1 is inserted into a cylindrical socket 6 extending into the inferior of a reflector 3 of long focus and held in place by a locking cap 5 having a flange 22 carrying a coil spring 23 which presses the holder 2 into contact with a stop, e.g. an inturned flange 7 on the socket 6, the socket being mounted in the reflector so that when the holder is in contact with the stop, the filament of the bulb lies at the focus of the reflector. The cap is then turned so that retaining lugs 21 on the socket 6 engage in recesses in the cap. The socket 6 is secured in the reflector 4 by spaced projections 9 on one side of the reflector and projections 12 on the other side. A further projection 13 on the socket engages a recess in the reflector to ensure that the socket is correctly orientated. The flange 7 has a recess 14 to engage a locating stud (not shown) on the bulb holder so as to ensure the correct orientation of the bulb filaments. An aperture 29 in the rim of the cap carries a side light bulb which projects through an aperture 33 in the reflector.
Patent GB-319161-A (GB)
Title: Improvements in protractors
IPC: G01C1/00
Filed: 1928-11-14
Abstract: 319,161. White, J. D. Nov. 14, 1928. Protractors.-A protractor for navigational use comprises a transparent strip A on which is marked a semi-circular protractor scale having its diameter coincident with, or parallel to, one edge C of the strip. The protractor is marked with four sets of graduation marks J - - M, all arranged anticlockwise. The graduations J, K are for use with meridian lines and are respectively numbered from 0‹ to 180‹ and from 180' to 360‹. The graduations L, M are for use with latitude parallels and are respectively numbered from 90‹ to 270‹ and from 370‹ through 360‹ or zero to 90‹. Two or more semicircular protractors as above may be marked on the same strip. The edge C is marked with length graduations.
Patent GB-618659-A (GB)
Title: Fishing net having a telescopic handle
IPC: A01K77/00
Filed: 1946-11-08
Abstract: 618,659. Fishing. GERAUD, A. Nov. 8, 1946, Nos. 33316 and 33317. Convention dates, Nov. 8, 1945 and July 18, 1946. [Class 48] In a fishing net, having a telescopic handle 1, articulated net carrying arms are arranged to emerge from the handle to spread out, and to be folded together to withdraw within the handle. A sliding tube 11, carrying a guide shield 18 for the arms, is held retracted within the tubular handle 1 by a catch 15, 17. Both tubes are slit longitudinally to accommodate the retracted arms which are pivoted to a member 30 sliding within the tube 11. The arms are biased to spread by a spring 28 connected by a wire 27 to links 24, and are held spread by a catch 31, 32 carried by the guide shield.
Patent GB-604901-A (GB)
Title: Improvements in and relating to sulphonamide derivatives
IPC: C07C311/37
Filed: 1945-12-10
Abstract: Salts of benzylamine p-sulphonamide are prepared by treating benzylamine p-sulphonamide with an organic acid, particularly one containing a single benzene ring, or by treating a readily soluble salt of benzylamine p-sulphonamide with a salt of an organic acid. The preparation of the salts of the following acids is specified, benzoic, cinnamic, b -phenyl propionic, mandelic, hippuric, sulphanilic, p - aminomethylbenzene sulphonic and p-hydroxy-benzoic acid.
Patent GB-910710-A (GB)
Title: Sleeves for gramophone records
IPC: B65D85/57
Filed: 1959-10-01
Abstract: 910,710. Gramophone envelopes. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Oct. 1, 1959 [Oct. 1, 1958; Aug. 4, 1959], No. 33338/59. Class 146 (2). [Also in Group XXXVIII] The mouth of a record sleeve carries velvet strips 10, which seal the mouth during record storage.
Patent GB-662428-A (GB)
Title: Improvements in or relating to electric switches suitable for telegraph transmitters
IPC: H04L13/16
Filed: 1949-12-30
Abstract: 662,428. Retractive switches. TELETYPE CORPORATION. Dec. 30, 1949. [Jan. 13, 1949] No. 33364/49. Class 38 (v). A switch for use in a high-speed telegraph transmitter comprises a pair of movable contacts 38 carried by a T-shaped conducting lever 36 pivoted at 44 to an arm 43 urged about a pivot 41 by a spring 46. The lever 36 is normally held in an extreme position by an operating lever 37 so that only one pair of contacts 34, 38 is engaged. On movement of lever 37 to close the open pair of contacts 34, 38, both pairs are closed for a short interval and then the appropriate contact 38 pivots on its fixed contact 34. The arrangement minimises contact-bounce. To further minimise bounce, the lever 36 may have a heavy mass. A pointer 48 facilitates setting the switch. In use the +ve battery terminal may be connected to one of the contacts 34 and the output taken from the T-lever 36. The Specification as placed open to inspection under Sect. 91 also describes a construction, Fig. 3 (Cancelled), in which a pair of movable contacts 18 are soldered to a flexible conducting strap 16 secured to an insulating block 11 having stationary contact pins 13. A block 19 secured to the strap 16 is urged against a dome-shaped support 28 by a pin 21 freely extending therethrough and connected to a spring 22. The contacts 13, 18 are normally open, but on movement of a lever 24, fixed to the block 19 from the central position, the block 19 first rocks on the support 28 until a pair of contacts 13, 18 engage, whereupon on continued movement of the lever the contact 18 pivots on its fixed contact 13 and is urged thereagainst by the spring 22. In a modification, Fig. 1 (Cancelled, not shown), the support 28 is omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-845600-A (GB)
Title: Improvements in or relating to servo systems
Inventor: SHAVE DEREK
IPC: G05D1/08
Filed: 1957-10-25
Abstract: 845,600. Automatic control systems. SMITH & SONS (ENGLAND) Ltd., S. Oct. 27, 1958 [Oct. 25, 1957], No. 33448/57. Drawings to Specification. Class 38 (4). In a closed loop control system for positioning an object, the control signal is applied through an amplifier, phase advancer, limiter, and phase retarder, arranged in cascade, to control a servomotor. In the arrangement described an electric signal corresponding to a desired attitude of an aircraft is applied, in opposition with a signal derived from a position gyro on the craft, to an amplifier feeding a phase advance network, a limiter and a phase lag network in cascade. The overall transfer function of the three latter units is unity unless the signal exceeds the limit of the limiter, in which case the arrangement improves stability. The output signal is applied through a second amplifier to energize an electro-hydraulic valve controlling an hydraulic jack which operates a control surface to correct the attitude of the aircraft. A position feedback signal derived from operation of the jack is applied to the input of the second amplifier.
Patent GB-630542-A (GB)
Title: Rotary pumps for liquefied gases
IPC: F04D7/02
Filed: 1947-12-18
Abstract: 630,542. Centrifugal pumps; stuffing-box substitutes. LINDE AIR PRODUCTS CO. Dec. 18, 1947, No. 33508. Convention date, Jan. 9. [Classes 110(i) and 122(v)] In a multi-stage pump having at least two stages, a shaft bearing is supported by a partition which separates the stages, the means for locating the bearing radially and axially also providing interstage fluid sealing. The inner race of the bearing 29 is clamped on the pump shaft 24 between a collar 25 and an impeller 15. The outer race is secured between rings which are screwed into a recess 38 in an interstage partition 13. Extensions 40 and 41 of the rings provide interstage sealing by covering the space between the inner and outer races. The bearing may have one or more rows of balls or it may comprise rollers. The bearing is run without lubricant but in contact with the liquefied gas being pumped; to avoid corrosion it may be of stainless steel.
Patent GB-898365-A (GB)
Title: Production of metal chlorides
IPC: C22B1/08
Filed: 1958-10-21
Abstract: Metal chloride vapours are formed by exothermic chlorination of a chlorinatable metalbearing and carbon-bearing composition with elemental chlorine, the chlorine and composition being projected separately or together into a reaction chamber to form a stream which is ignited to produce a flame, the stream and the flame resulting having the outer peripheries maintained spaced from the walls of the reaction chamber.  If desired titanium carbide may be employed thereby providing both the metal and the carbon constituent.  Other applications referred to are the chlorination of rutile, ilmenite and pure titanium dioxide, zirconium ores, zirconia, iron ores and chromium ores, preferably of particle size between 5 and 250 microns. The particle size of the carbonaceous material is generally the same or may be slightly larger than the particle size of the metal bearing material.  Preferably at least a stoichiometric quantity of carbon, computed as carbon monoxide, is employed and both reactants may be preheated; if the reactants are premixed they may be preheated to the point of incipient reaction.  In an example, a suspension of titanium carbide solids in chlorine gas was fed to a 2 inch tube heated to 700 DEG C., at a speed of 4 metres per minute, through a 7 millimetre tube.  After start up no heating of the reactor was required and the flame temperature was about 700 DEG C.  Specification 359,568 and U.S.A. Specification 2,486,912 are referred to.
Patent GB-521416-A (GB)
Title: Improvements in and relating to insulated refrigerating boxes
IPC: F25D3/14
Filed: 1938-11-18
Abstract: 521,416. Fastenings for lids. USMAR, G. Nov. 18, 1938, No. 33556. [Class 44] [Also in Group XIII] Hinged or removable lids 12 of refrigerated boxes are held in place by turn members 30 pivoted to the hinge flaps or directly to the lid and engageable in slots 32 in metal reinforcing frames 18 of the box and secured by notched drop members 33 connected by a padlock.
Patent GB-1481710-A (GB)
Title: Cephalosporine compounds and processes and compounds for their production
IPC: C07D501/14
Filed: 1974-07-30
Abstract: 1481710 Cephalosporin derivatives E R SQUIBB & SONS Inc 30 July 1974 [7 Sept 1973] 33631/74 Heading C2C The invention comprises compounds (III) and (IIIa), where R is hydrogen, a salt-forming ion or an ester residue; R<SP>2</SP> is C 1-7  alkyl, C 1-4  alkoxy- C 1-4  alkyl, C 1-4  alkylthio-C 1-7  alkyl, cyano- C 1-7  alkyl, cyano-C 1-4  alkylthio-C 1-7  alkyl, phenyl-C 1-7  alkyl, phenoxy-C 1-7  alkyl, phenylthio-C 1-7  alkyl, thienyl-C 1-7  alkyl, thienyl, benzyl, phenyl or aryl (i.e.) phenyl substituted by halogen, C 1-7  alkyl, nitro, or carboxy-C 1-4  alkoxy) ; R<SP>3</SP> is chlorine, bromine, C 1-4 -alkoxy, C 1-4  alkylthio, phenylthio or phenoxy; R<SP>4</SP> is C 1-7  alkyl, phenyl, benzyl or phenyl or benzyl substituted by nitro, halogen, C 1-7  alkyl or carboxy-C 1-4  alkoxy; R<SP>5</SP> is t.butyl, nitrobenzyl, methoxybenzyl, trichloroethyl, benzhydryl, acetoxymethyl or pivaloyloxy ; and X is hydrogen, C 1-7  alkanoyloxy, C 1-4  alkylthio, carbamoyloxy or thiodiazolyl, the preparation (a) of a compound (III), where R<SP>2</SP> is aryl or is C 1-7  alkyl or substituted C 1-7  alkyl, R<SP>3</SP> is chlorine or bromine and X is as defined above or is C 1-4  alkoxy, by reacting a corresponding compound (II) with an alkyl- or aryl-thiolating agent at - 80 to + 10 C. in the presence of a strong base or (b) of a compound (III), where R<SP>2</SP> is aryl or C 1-7  alkyl and R<SP>3</SP> is C 1-4  alkoxy, C 1-4  alkylthio, arylthio or aryloxy, by reacting a corresponding compound (II) with an alkyl- or aryl-thiolating agent and, if desired, hydrolysing a resulting compound (III<SP>1</SP>), to form an amide (IVa) or acylating a compound (III) or (IIIa), in which R<SP>3</SP> is C 1-4  alkoxy, C 1-4  alkylthio, phenoxy or phenylthio, with a compound R<SP>1</SP>COY or (R<SP>1</SP>CO) 2 O, where Y is chlorine or bromine to form a compound (Ia) or (IV).
Patent GB-1151705-A (GB)
Title: Air-Compressing Fuel-Injection Combustion Piston Engine
IPC: F02B23/06
Filed: 1966-07-27
Abstract: 1,151,705. Combustion chambers. KLOCKNER-HUMBOLDT-DEUTZ, A.G. July 27, 1966 [Aug.5, 1965], No.33707/66. Heading F1B. A cylindrical combustion chamber has its axis 7-7 inclined to the cylinder axis X-X and the fuel is injected as a single jet 4 parallel to the longest wall section 5 of the chamber. The jet has a slight inclination in the direction opposite that of the rotation of air in the chamber.
Patent GB-1271673-A (GB)
Title: Means for shielding and unshielding permanent magnets and magnetic motors utilizing same
Inventor: JINES JAMES EVERETT
IPC: H02K53/00
Filed: 1969-07-04
Abstract: 1,271,673. Motors with permanent magnets. J. E. JINES and J. W. JINES. 4 July, 1969, No. 33777/69. Heading H2A. [Also in Division H1] A motor comprises at least a pair of opposed stators 23, 31, each carrying circumferentially spaced permanent bar magnets 54 each enclosed in ferro-magnetic material except for one pole face, the magnets on two opposed stators being circumferentially staggered, a member, e.g. 51, of magnetic material arranged on the periphery of a rotor 46 so as to be rotatable between the stators, and magnetic shields 63, Fig. 2 (not shown), associated with the individual magnets and so arranged that they are moved off and on circumferentially spaced magnets in succession so as to cause rotor rotation. The shields are controlled by cams 66, 68, carried by the rotor. The rotor carries two members, 51, 52, of magnetic material. Motor speed is controlled by varying the extent to which the stator poles are exposed by the shields: a handle 77 operates through gears e.g. 79, 81, to slide a disc e.g. 85 along the stator and thus move a crank lever 99 which controls the extent to which the shields move. Lubricant is admitted through apertures 102 in the motor casing 10 and may be removed through apertures 103. The lubricant circulates freely within the casing.
Patent GB-431901-A (GB)
Title: Improvements in and relating to the steering gear of motor vehicles
IPC: B62D3/12
Filed: 1934-11-23
Abstract: 431,901. Motor-vehicle steering-gear. DAIMLER-BENZ AKT.-GES., Untert³rkheim, Stuttgart, Germany. Nov. 23, 1934, No. 33778. Convention date, Nov. 23, 1933. Addition to 400,101. [Class 79 (v)] In a vehicle having a central frame member b and a rack r slidable in a casing e to steer the road wheels, as described in the parent Specification, the casing is so mounted on the frame as to be capable of a rocking movement to enable the inclination of the steering column h to be adjusted. In the construction shown the rack casing e has extensions c, d pivotally connected by bolts f to a cross member a secured to the central frame member b, the bolts being tightened to hold the casing in the desired position. The rack r is connected by joints n and rods to the steering arms of the road wheels.