baber/WOPTO huggingface dataset:
Patent GB-625739-A (GB)
Title: Improvements in brakes
IPC: F16D55/26
Filed: 1946-07-25
Abstract: 625,739. Compensating for wear in disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. July 25, 1946, No. 22138. [Class 103 (i)] A fluid pressure-operated disc brake comprises a brake applying member actuated by fluid pressure and in frictional engagement with spring-operated retraction means which is deformed or displaced by movement of the said member and which slips on the member on movement thereof in excess of a predetermined amount, thereby compensating for wear of the friction elements. The disc brake shown is of the kind described in Specification 625,726. In one form, Fig. 1, brake pads 14a, 14b are applied to discs 9, 10, rotatable with an aircraft wheel 11 by fluid pressure established in the space between a sleeve 13 slidable on a pin 8 and a cup-shaped member 12 which abuts the head 8a of the pin, the latter extending through the pads and an annular space between the discs and being secured to an arm 7a of a spider 7 secured to the wheel axle. The circumferential wall 13a of the sleeve is enclosed by an envelope 19 having a corrugated bottom 19a engaging the member 12, the envelope being held in frictional engagement with the sleeve wall by a split clamp 20. If the relative movement of the sleeve and member 12 to apply the brake exceeds that allowed by the resiliency of the envelope, the envelope slips on the sleeve so that the " release " position of the latter is advanced as the brake pads wear. Fig. 3 (not shown), illustrates a modification in which the envelope is non-resilient, and a spring washer is interposed between the head of the pin 8 and the head of a plunger 8d which is slidable in a bore in the pin 8 and has a domed head engaging the envelope. In a further modification, Figs. 4 and 6, the brake is applied by fluid-pressure established in the space between a block 7b formed on the arm 7a and a sleeve 13 which is engaged frictionally by a split clamp 20 formed on a plate 24, the latter being secured to the arm 7a by bolts 25 fitted with spring washers 26. If the movement of the sleeve to apply the brake exceeds that allowed by the washers, the sleeve slips on the plate to take up the wear.
Patent GB-1345025-A (GB)
Title: Plant for continuously refining pig iron
IPC: C21C5/56
Filed: 1971-04-19
Abstract: 1345025 Spray steelmaking VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE AG 19 April 1971 [20 Feb 1970] 22160/71 Heading C7D Crude iron is stored in a mixer from which it is conveyed electromagnetically at constant rate up an inclined channel to the inlet of a refining vessel where it is atomized by a horizontal jet of gas. In a particular embodiment iron from blast furnaces 1,2 flows through launders 4,5 to mixer 6; it is then conveyed up channels 8, 9 to inlet funnels 10 of vessels 11, 12 to form a stream 18 atomized by jet 21.
Patent GB-336991-A (GB)
Title: Improvements in destructive hydrogenation
IPC: C10G47/02
Filed: 1929-07-19
Abstract: 336,991. Harrison, C. F. R., and Imperial Chemical Industries, Ltd, July 19, 1929. Catalytic processes and apparatus. - Destructive hydrogenation under pressure in the liquid phase is carried out in a vertical tower, i.e., a vessel long in comparison with its width, in the present of a massive metallic catalyst, i.e,. a solid, non-granular, non-powder metal catalyst or relatively large surface area, as distinct from a solid coating or mere lumps of catalytic material. The catalyst may be in the form of plates, wire, ribbon or gauze. As shown, plates 3 separated by washers 5 on bolts 4 are built up into units which fill the cross-section of the tower 1. A tower 20 feet high would contain 16 of such units, each 12 inches high, and the plates of alternate units 2, 3 are in vertical planes at right angles to each other. The plates break up large bubbles of gas. The tower 1 may be the highpressure vessel or it may be contained within a high-pressure vessel. Specifications 308,995, [Class 32, Distilling, &c.], 309,258 and 335,215 are referred to.
Patent GB-897557-A (GB)
Title: Improvements in and relating to alternators
IPC: H02K11/04
Filed: 1959-06-29
Abstract: 897,557. Alternators; cooling dynamoelectric machines. HOUCHIN Ltd., and CHAPMAN, R. A. Sept. 29, 1960 [June 29, 1959], No. 22210/59. Class 35. In a D.C. excited, brushless alternator, excited from an exciter EXC through rectifiers rotating with the rotor, the exciting leads are carried to the alternator rotor 15 through duct 59 in the shaft, and the rectifiers RRA are located in a ventilated cooling chamber 60 at one end of the machine. The rectifiers may be of the silicon or germanium type. As shown in Fig. 3, the rectifier carrier consists of two aluminium mounting rings 30 having three equiangularly-spaced arms 31 radiating from a hub 32, mounted on shaft 33, each pair of arms of the rings being bolted together by screws 42 which also serve as input terminals to the diodes. Each pair of rectifiers 19a, 20a, &c. is mounted in a separate housing carried on the inner periphery of a ring 30 and the D.C. output terminals 21A, 21B are flanges 51 with screws 52 on the hub 32 of the ring. The cooling chamber 61 is provided with cooling air inlets 62 and the rings may be provided with fins to assist cooling.
Patent GB-1475190-A (GB)
Title: Chain-link fencing
IPC: B21F27/02
Filed: 1974-05-17
Abstract: 1475190 Packaging chain-link fencing VEREINIGTE HUTTENWERKE BURBACHEICH-DUDELINGEN AG ARBED 17 May 1974 [26 May 1973] 22235/74 Heading B8C A method of packaging chain-link fencing consisting a mesh of interlinked wire coils comprises the steps of flattening the coils 1 of the mesh to effect plastic deformation of the wire coils and to reduce the overall thickness thereof perpendicular to the plane of the coils to a dimension equal to from two to five times the diameter of the wire constituting the coils, and thereafter forming the flattened mesh into a compact package. As shown, a fencing mesh 1 made by a conventional chain-link weaving machine is vinyl coated, has a diameter of 2À8 mm., a mesh size of 40 mm., and spirals, as seen from the end of the coils, which are of oval cross-section and which provide an overall mesh thickness of 16 mm. The mesh is fed, stepwise, between the plates 3, 4 of a press which reduces the overall thickness of the mesh to 8À5 mm. which finally relaxes to 10 mm., the oval section of the coils being flattened as shown at 2, Fig. 3. Synthetic resin strips can be woven into each coil to render the fencing substantially solid and provide tensioning devices. In a modification, Fig. 4, the mesh 14 is flattened between a pair of rollers 11, 12, the mesh being compressed longitudinally between two pairs 15, 16 of oppositely-driven, spoked, members and the rolled up into a tight roll 18. Fencing mesh (20) drawn from a large supply roll (19), Fig. 6, not shown, is flattened between a pair of rollers (21, 22) sections of mesh, cut off by blades (24, 26) being loaded in meander style in cartons (26).
Patent GB-721850-A (GB)
Title: Apparatus for briquetting fine-grained and pulverulent materials
IPC: B30B11/20
Filed: 1952-09-04
Abstract: 721,850. Ring-roll briquetting presses. HUBMANN, O. Sept. 4, 1952 [Sept, 8, 1951; Oct. 23, 1951], No. 22297/52. Class 87 (2) The rotary ring 4 of a ring-roll briquetting press is recessed at R and into the recess projects a non-rotating journal 7 carrying a bearing 13 on which is mounted the eccentrically-disposed roll 6. The briquetting space is shown at 26. Co-operating surfaces 22, 23 on the roll and ring ensure a drive from the ring to the roll when the press is started up or when the space 26 is not sufficiently filled with material. Outward axial thrust on the roll is taken by a bearing 14 and transmitted to a member 8 in which journal 7 is disposed, this member 8 being vertically slidable on guides 10 in frame 9; and similar thrust on the ring is taken by a bearing 15 and transmitted 'to a member 3<2> housing a bearing 3 in which rotates shaft 2 that carries the ring. The bearing members 3<2> and 8 are connected together by arms 16 which house pins 17, 18 in the members, and when the member 8 (carrying the roll) moves vertically (e.g, upwardly, due to an increase in pressure in space 26) the arms rock about pins 17; the upward movement of the arms is resisted by springs 21 (or hydraulic means) acting on the ends of the arms, and by adjusting the springs the briquetting pressure may be adjusted. Dust is drawn off from recess R by suction pipe 25. The journal 7 is hollowed at 24 to receive cooling water. Another pressing apparatus may dispose on the left-hand end of the shaft 2.
Patent GB-501793-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G1/16
Filed: 1938-07-27
Abstract: 501,793. Weighing-apparatus. BERKEL AUTO SCALE CO., Ltd. (Maatschappij van Berkel's Patent N.V.) July 27, 1938, No. 22302. [Class 143] A weighing-apparatus incorporates a tare beam (or capacity-increasing beam) which (for the purpose of avoiding "out-of-level" error) is freely suspended from or carried by the weigh-beam or lever of the apparatus towards one of its ends, and towards the other end is operatively connected to means adapted to swing laterally about a lixed axis lying below the beam. As shown, the weigh-beam 4 is connected to a load rod P and a pendulous resistant W, and supports by a link 7 one end of the tare beam 1a, 1b. The other end of the tare beam is supported by the upper end 8 of a pendulum 5. If the apparatus is out of level the pendulum 5 displaces the tare beam to compensate for the tilt.
Patent GB-748565-A (GB)
Title: Process for the preparation of phenol and acetophenone or of paracresol and paramethyl acetophenone
Filed: 1953-08-13
Abstract: Phenol and acetophenone or para-cresol and para-methyl acetophenone are made by heating 1:1 - diphenyl ethane - 1 - hydroperoxide or 1:1 - di - para - tolyl ethane - 1 - hydroperoxide in an acid medium. Preferably the starting material, which may be the reaction product obtained by oxidizing 1:1-diphenyl ethane or 1:1-di-p-tolyl ethane still containing some unconverted hydrocarbon, is mixed with dilute acid, e.g. 10-25 per cent sulphuric acid, and the mixture is heated to about 100 DEG  C., preferably by passing in steam which removes the decomposition products as they are formed.  Examples describe the preparation of phenol, acetophenone, para-cresol and para-methyl acetophenone according to the invention.  Specification 748,566 is referred to.
Patent GB-672588-A (GB)
Title: Improvements relating to ball tube mills
Inventor: MACPHEE ANDERSON
IPC: B02C17/04
Filed: 1950-09-12
Abstract: 672,588. Ball mills. MITCHELL ENGINEERING, Ltd. Sept. 12, 1950, No. 22439/50. Class 59 A ball-tube type o grinding mill in which the balls cascade comprises a drum 6 supported at its ends by spiders carried bv shaft: 11, Fig. 1, of which one is power-driven, the arms 9 of the spiders having faces inclined to a plane perpendicular to the axis of the drum in order to project any balls of unpulverized matter which may contact them back into the drum during its rotation. The spiders are formed from castings 7, 8 protected on the inner annular faces by linings 20 and on the forward faces of the arms 9 by chill-hardened castings 21 attached by bolts 22. A lining of hard blocks 17 preferably bedded in cork 18 is provided in the drum 6 which is rotated at the feeding end by a motor driving the shaft 11 through a helical reduction gearing housed in a casing 12, the inner ends of the shafts 11 being protected by caps 23. The grinding balls are fed into the drum through a door in a shoot 15 down which is fed tne solid matter to be pulverized preferably after first passing through a rotary-disc feeder housed in a casing 14 and driven by a motor 16; the sloping disposition of the arms 9 also assists in feeding the matter to be pulverized into the drum. A centrifugal fan 27 sucks the pulverized matter from the drum through a box 24 and delivers it to a furnace or, alternatively, a centrifugal separator 26 may discharge the pulverized matter. In a modification, Fig. 5, the drum is driven at its discharge end by a motor 54 acting through chain reduction gearing housed in casings 55, 56. The shaft supporting the other end of the drum is carried in a roller bearing capable of sliding axially. in its housing to facilitate thermal expansion of the drum. Specification 594.855 is referred to.
Patent GB-312982-A (GB)
IPC: H04R11/00
Filed: 1928-08-02
Abstract: 312,982. Radiophon Co. June 4, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Magnetic instruments.-An armature a, Fig. 1, adapted to oscillate by virtue of its own elasticity, above actuating pole pieces d, is clamped at its ends by screws b, and so strengthened at its centre portion, as to favour torsional oscillations about its axis, and discourage the deflectional oscillations normal to its axis. Lateral beadings f, Fig. 3, of any desired length, or a hoop g, Figs. 4, 5, or g, Fig. 6, in which the arms converge outwardly, may be used. A rod c transmits the oscillations of the armature to a cone diaphragm. not shown.
Patent GB-791065-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1955-08-04
Abstract: The invention comprises compounds of the formul : <FORM:0791065/IV (b)/1> (wherein R is a keto or b -hydroxy group and R1 is hydrogen or an alkyl, aralkyl or acyl group) and alkali metal and alkaline earth metal bisulphite addition compounds of the aldehydes; together with a process for their preparation by oxidation of 9a -fluorocortisone or 9a -fluorohydrocortisone, preferably using cupric acetate in water or a polar organic solvent, e.g. acetone, alcohols, dioxan, tetrahydrofuran, or dimethoxyethane; or using air or oxygen at between 45 DEG  and 60 DEG  C. in the presence of a copper or ferric salt.  The aldehydes so produced are normally isolated as their monohydrates, and are then acetalized, esterified or converted to the bisulphite compounds.  Specified alcohols for acetal formation include methanol, ethanol, 1-propanol, 1-butanol, 2-methyl-1-propanol, 2-butanol, 1-pentanol, 1-hexanol, benzyl alcohol, and phenethyl alcohol, and the 21,21-diesters are prepared by treating the aldehydes or their hydrates with acylating agents (preferably acid halides or anhydrides) particularly of the following acids: formic, acetic, propionic, butyric, valeric, hexanoic, heptanoic, octanoic, cyclopentan-carboxylic, cyclopentylpropionic, benzoic, toluic and oxalic.  In examples: (1) 9a -fluorohydrocortisone in methanol is refluxed with cupric acetate solution containing glacial acetic acid, cuprous oxide separated and the 21-aldehyde of 9a -fluorohydrocortisone crystallised as the monohydrate, and characterized as the sodium bisulphite addition compound; (2) 9a -fluorocortisone is oxidized as in (1) to the corresponding aldehyde hydrate; (3) as in (1) but effecting the oxidation with air in the presence of a little copper acetate as catalyst; (4) and (5) the hydrate from (1) is etherified with methanol (or ethanol) and HCl yielding the 21, 21-dimethoxy and 21,21-diethoxy derivatives; whilst (6) acylation with acetic anhydride/pyridine gives the 21,21-diacetate.  Specification 783,319 is referred to.ALSO:Novel compositions comprise 9a -fluoro-4-pregnen - 17a  - ol - 21 - al - 3,11,20 - trione, 9a -fluoro - 4 - pregnene - 11b ,17a  - diol - 21 - al-3,20-dione, their monohydrates, 21, 21-di-alkyl and di-aralkyl ethers, 21,21-diacyloxy derivatives and the corresponding alkali metal or alkaline earth metal bisulphite addition compounds in combination with a solid or liquid pharmaceutical carrier, e.g. starch, sugar, talc, sterile water or oils.  The compositions may include suspending agents, e.g. sodium carboxymethylcellulose, methyl cellulose, gelatin and solubilizing or dispersing agents, e.g. lecithin.  They are administered in the form of powders, capsules, tablets for oral administration, by injection, or topically.  Specification 783,319 is referred to.
Patent GB-1440309-A (GB)
Title: Bitumen coated perlite
IPC: C04B20/10
Filed: 1975-05-23
Abstract: 1440309 Coated perlite BRITISH INDUSTRIAL SAND Ltd 23 May 1975 22490/75 Heading B2E  Expanded perlite particles having a particle size from 0.1 mm. to 5.0 mm. are coated with 35 to 100 parts by weight of bitumen per 100 parts by weight of perlite by mixing or spraying the perlite particles with 70 to 200 parts by weight per 100 parts by weight of perlite, of an aqueous alkaline anionic bitumen emulsion as defined by British Standard 434 Bitumen Road Emulsions, and drying the coated particles at below 120‹C to obtain a free flowing composition of coated perlite. The bitumen is a petroleum bitumen having a grade range of between 70 and 200 penetration, suitably a bitumen complying with British Standard 3690-Bitumen for Road Purposes. The coated perlite particles may be compacted e.g. by rolling, to form a screed useful for roofing, having good thermal insulation properties.
Patent GB-676111-A (GB)
Title: Improvements in protective devices for electric motor control systems
Inventor: MEREDITH FREDERICK WILLIAM
IPC: H02H7/08
Filed: 1949-08-31
Abstract: 676,111. Control of several A.C. motors; protective cut-out arrangements. SMITH & SONS (ENGLAND), Ltd. S., and FURZEHILL LABORATORIES, Ltd. Nov. 28, 1950. [Aug. 31, 1949] No. 22599/49. Classes 38 (iii) and 38 (v). [Also in Group XXXV] A control system having three motors 'each fed from one phase of a three phase supply in accordance with an output control voltage, has means to generate three voltages in accordance with the torques of the motors, the voltages being normally equal in magnitude and differing in phase by 120 degrees and means responsive to the magnitude of the vector sum of the three voltages to cut-off the power supply in the event of excessive unbalance between the torques. In the Figure, the star connected stators 102, 202, 302 of the threephase motors are each supplied from a phase of the four-wire three-phase supply 1, 100, 200, 300 by means of phase-splitting capacitors 103, 203, 303 and transductors which are controlled by pre-amplifiers 400, 500 in response to a control signal on lines 21, 22. In the case of the transductor for motor 102, the impedance of the A.C. or power windings 105 ... 108 is controlled by D.C. windings 401, 403 energized by the pre-amplifier 400 as described in Specification 633,375. Similarly, the transductor for motor 303 is controlled by the pre-amplifier 500, but the transductor for motor 203 has two sets of D.C. windings-402 and 404 supplied from pre-amplifier 400 and 502 and 504 supplied from pre-amplifier 500, the resulting flux being the arithmetic mean of those of other two transductors. Transformers 104, 204, 304 have their primary windings connected across the capacitors and their secondary windings connected in series. In the event of unbalance, the resultant of the voltages produced in the secondary windings energizes a motor 13 to adjust the slider of a potentiometer 14 to apply a corrective potential from transformer 15 to the pre-amplifier 500 to restore the balance. Should the slider reach the end of its travel without the balance being restored, a limit switch 7 or 8 is opened to de-energize a contactor coil 2 to open the power supply at 101, 201, 301. Alternatively, the heater coil 11 of a thermal relay 9 may be sufficiently energized through a rectifier 12 from the secondary windings to open its contacts 10 to de-energize the coil 2. The circuit for the latter is provided with "stop" and "start" buttons 5, 4 and is completed through the coil 11 so that failure of the coil 11 causes the interruption of the supply.
Patent GB-192108-A (GB)
Title: Plastic compositions having a basis of cellulose ester
IPC: C08L1/12
Filed: 1921-08-25
Abstract: 192,108. Columbia Graphophone Co., Ltd., Forse, W. T., Jones, F. W., and Walters, G. Aug. 25, 1921. Plastic compositions containing cellulose acetate &c.-A composition suitable for the manufacture of gramophone records consists of cellulose acetate, gelatinizing agents such as sulphonamides, compound ureas, anilides and their homologues, urethanes, esters of oxamic acid, cyclohexanone &c., and an acaroid resin in quantities preferably not exceeding the amount of gelatinizer. Fillers, as carbon black, barytes, rotten stone, kieselguhr, may be added. According to an example, 2 parts of cellulose acetate, 1 part of acaroid resin, and 1 part of para-toluene sulphoanilide are gelatinized on steam-heated rolls. 3 parts of carbon black are incorporated and the mass is moulded into blocks which are reheated and mouded, or the mass is allowed to cool and is ground into fine powder which is used to make the surface of laminated or other records. Volatile solvents may be added to assist in the gelatinization.
Patent GB-696551-A (GB)
Title: Improvements in or relating to a method of puffing tobacco and the resulting products
IPC: A24B3/18
Filed: 1950-09-14
Abstract: 696,551. Treating tobacco. GUARDITE CORPORATION. Sept. 14, 1950 [Jan. 5, 1950], No. 22610/50. Class 130. In a method of puffing tobacco wherein the totobacco in hands is heated by steam under pressure and then ejected with. explosive violence into a chamber maintained at a high vacuum, the tobacco hands are orientated prior to puffing so that the leaves lie in the general direction in which the hands are ejected by the puffing explosion. The tobacco hands are arranged longitudinally of the pressure chamber 11 of a puffing gun and heated by steam at a pressure of 3-5 pounds per square inch above atmospheric for about two minutes. Opening of a gate causes the hands to be shot into the puffing chamber 12 maintained at an absolute pressure of about 0.2 inch mercury. Chamber 11 is then closed, refilled with tobacco hands, and the heating cycle started, the puffed tobacco meantime being maintained under vacuum in the chamber 12 to remove moisture therefrom and preferably heated by heating coils. Prior to the next puffing the tobacco in chamber 12 is dropped through a gate 13 into a storage chamber 14 at the same pressure in which the tobacco from several puffing cycles is stored before the vacuum is released and the puffed tobacco removed. For the production of pliable stems in the puffed tobacco the butts of the tobacco hands are arranged adjacent the chamber 12, and for brittle stems the butts are arranged away from the chamber 12. Specification 675,292 is referred to.