baber/WOPTO huggingface dataset:
Patent GB-490947-A (GB)
Title: Improvements in or relating to pneumatic supply systems
IPC: F04B49/02
Filed: 1937-02-25
Abstract: 490,947. Valves. TURNER, W., and ASKEW, G. Feb. 25, 1937, No. 5676. [Class 135] [Also in Groups XXVIII and XXXIV] In an arrangement for filling receivers, e.g. tyres, with gas under pressure, the gas is supplied at a higher pressure and pressure difference on either side of a throttle is used to actuate a valve in the supply line and /or an alarm. The high pressure gas line 1 is connected through a reducing valve 5 to a chamber 11. The valve 5 is opened by a member 19 connected by a spring 20 to a member 21 moved by a knob 23 which also actuates a switch 26. The chamber 11 is connected to a pressure gauge 14, pipe 43 and a pipe 18 which leads to a casing 33 having a passage 38 containing a throttle 37, and a bore 34a containing a magnetized piston 34. The tyres &c. are connected to pipes 44 and when the gas supply is opened the piston 34 is raised and when the tyres &c. are filled, the flow of gas falls and the pressure difference across the throttle 37 is insufficient to keep the piston 34 raised and in falling it actuates the magnetically controlled mercury switch 28 and energizes the circuits to close the valve 41a and/or operate the alarm 27. The throttle 37 may be adjusted by the pin 37a.
Patent GB-765537-A (GB)
Title: Process for the production of vitamins of the b group
IPC: A61K31/00
Filed: 1955-02-25
Abstract: Vitamins of the B12 group are eluted from montmorillonite adsorbates containing such vitamins by means of aqueous solutions which contain one or more sulphur-containing compounds of the group consisting of sulphite ion yielding compounds, thiosemicarbazide and thioglycollic acid.  The compounds forming sulphite ions in aqueous solution are constituted by sulphurous acid (SO2), sulphites, bisulphites, dithionites or pyrosulphites and may form 0.08 to 0.4 per cent w/v. of the elution agent.  Thiosemicarbazide or thioglycollic acid may be used in the proportion 0.1 to 0.2 per cent w/v. of the elution agent. Initially the pH value of the elution agent may be adjusted to 7 to 9 by means of sodium hydroxide and maintained at this value by means of buffers such as sodium bicarbonate or secondary sodium phosphate. The eluate thus obtained from the montmorillonite adsorbate may be treated with active charcoal and the adsorbate thus obtained again eluted.
Patent GB-291511-A (GB)
Title: Improvements relating to loaded telephone circuits and particularly to the reduction of cross-talk therein
IPC: H01B11/16
Filed: 1927-03-01
Abstract: 291,511. Standard Telephones & Cables, Ltd., Blumlein, A. D., and Johns, J. P. March 1, 1927. Loading circuits to improve transmission.-Cross talk in loaded phantom circuit systems is minimized by the following constructions and arrangements of the loading coils. (1) The terminal wires on one side of a phantom coil, Fig. 1, are connected to the inner ends of the inner windings and those on the other side to the outer ends of the outer windings. The capacities Kc, Kp to core and pot respectively are thus concentrated at the terminals and any unbalance can be corrected by condensers, which may consist of shielded pairs of wires, connected at these points. (2) The terminal wires and the inter-coil wires are led round the outside of the coil in such a way that their capacities to the outer windings are unbalanced. Thus, with the arrangement shown, since the capacities a - - d of the terminal wires and those e - - f of the connecting wires are all equal a condition of balance is obtained as indicated in Fig. 4. Alternatively, the wipes A4, B4 may be led out on the right (eliminating the capacities a, b) and the wires C1, D1 may be led round only as far as the top and bottom of the coil and then doubled back on themselves so as to leave it on the left (doubling the capacities c. d). In this case also balance is obtained as indicated in Fig. 5. (3) The side coils are constructed as shown in Fig. 2 with the capacities to core concentrated on one side and those to pot on the other and are associated with the phantom coil to form a unit in such a way that the lines in one direction are connected to the inner ends of inner windings and the lines in the other direction to the outer ends of outer windings. (4) The phantom and side coils are mounted coaxially and the magnetic coupling between them is adjusted to minimize cross talk by relative rotation of the coils as described in Specification 226,493. This is done most satisfactorily if the leakage flux has the same form in all the coils. Accordingly one pair of diametrically opposite washers in the phantom coil is made larger than the other to provide two main points of leakage, as in the side coils, instead of four. (5) If the loading unit as constructed is already balanced, it is connected between two cable sections which have themselves been balanced as described in Specification 2508/13. If not the unbalances in the unit are opposed by those in the cable. This may be done (a) by connecting one side of the unit to a cable section (leaving the other side disconnected) and balancing the section plus loading unit against the next section, or (b) by measuring the unbalance in the loading unit and connecting to it a cable section in which the unbalances are equal and opposite.
Patent GB-1072975-A (GB)
Title: Method for manufacturing polyacrylonitrile filament yarn
IPC: D01D11/00
Filed: 1966-02-09
Abstract: 1,072,975. Polyacrylonitrile filament yarns. TOYO BOSEKI KABUSHIKI KAISHA. Feb. 9, 1966 [Feb. 9, 1965], No. 5770/66. Heading B5B. A method for manufacturing an untwisted or substantially untwisted filament yarn of wet-spun polyacrylonitrile, comprises treating the filaments with a binding agent after hotdrawing and before drying and take up. If desired, the filaments may be treated with a lubricating agent concurrent or subsequent to the binding agent treatment. Suitably, the amount of binding agent deposited on the filaments ranges from 1% to 10%, preferably 2% to 7%, based on the weight of the filaments, and the amount of the lubricating agent deposited on the filaments ranges from 0À1% to 1À0%, based on the weight of the filaments. The concentration of the binding agent in the mixed solution of binding and lubricating agents suitably ranges from 2% to 15%. Specified binding agents include alginate salts, starch, polyvinyl alcohol, carboxy methyl cellulose and polyacrylate salts. The lubricating agent may be a finishing wax or oil. Examples relate to the treatment of filaments comprised of a copolymer of 91À2% acrylonitrile and 8À8% methyl acrylate dissolved in a 44% aqueous solution of sodium thiocyanate to prepare a spinning solution, the copolymer concentration of which is 11%, which solution is wet spun into filaments in a 5% aqueous solution of sodium thiocyanate. The filaments after withdrawal from the coagulating bath are drawn to fourteen times their initial length in steam at 110 to 115 C., treated with the binding agent comprising polyvinyl alcohol, and concurrently or subsequently, treated with a lubricating agent. The yarn is then dried under tension at 110 C. and then heat-treated at 180 C., whereby it is shrunk by 14%, prior to wind up, or alternatively the yarn may be hot-drawn at 180 C. prior to wind-up.
Patent GB-180417-A (GB)
Title: Improvements in centrifugal friction clutches
IPC: F16D43/18
Filed: 1921-02-21
Abstract: 180,417. Broadbent & Sons, Ltd., T., and Broadbent, F. J. Feb. 21, 1921. Clutches, friction. -In a centrifugal friction clutch comprising a series of shoes a slidably carried in peripheral recesses b in a spider c on the driven shaft d, the end faces a<1> of the shoes are curved and the cooperating driving- faces b<1> of the recesses are inclined, the curve a' for each shoe being struck from a centre f on the bore 1-1 joining the centre of the shoe and the centre of the clutch and the normal g to the inclined face b<1> passing through that point. This formation of the co-operating faces a<1>, b<1> is stated to ensure equal wear of the shoe surfaces a<x> from end to end and the distance of the point f from the centre of the clutch is given by the expression 4 sin a / sin 2a+a R where 2a is the angle subtended by the shoe at the centre of the clutch and R is the radius of the surface a<x>; the method by which the above expression is obtained is given in the Specification. The end faces of the shoes may be inclined and those of the recesses curved and, according to the Provisional Specification, such faces may be partly inclined and partly curved, or one of a pair of co-operating faces may be wholly curved or inclined and the other partly curved and partly inclined.
Patent GB-1123337-A (GB)
Title: Improvements in structural bars
IPC: E04C3/04
Filed: 1966-02-10
Abstract: 1,123,337. Hollow bars. F. HOLZINGER. 10 Feb., 1966 [20 Nov., 1965], No. 5812/66. Heading E1K. A hollow-section bar 1 has longitudinal channels 5 for the reception of fastening means, hollow corner strips 4 being joined in continuous profile to the core 2 'by doublewalled flanges 3. The core 2 may be polygonal or circular and the double flanges 3 may be back-to-back arcuate. The flanges may spring from the sides of a square core 2.
Patent GB-261231-A (GB)
Title: Improvements in and relating to electromagnetic acoustic apparatus
IPC: H04R7/10
Filed: 1926-03-03
Abstract: 261,231. British Thomson-Houston Co., Ltd., (Compagnie Truncaise pour l'Exploitation des ProcÚdÚs Thomson-Houston). March 3, 1926. Loud-speakers; magnetic instruments ; diaphragms.-- In an electromagnetic acoustic apparatus such as a telephone receiver of the kind in which the oscillating system comprises two or more elements separated by a fluid or elastic medium and having different natural frequencies, each element is acted upon directly by the electromagnet. In the loud-speaker shown, two diaphragms M. M' of magnetic material are spaced apart by a washer B and clamped against the casing C by the cover D which carries the horn P. The separating clamping washers B, P, R<1> may be chosen so as to facilitate the regulation of the distances between the two diaphragms and of the diaphragms relatively to the electromagnet E. For example, rubber washers R, B and a paper washer R' may be provided and adjustment may be obtained by screwing the cover D more or less on to the casing C. The electromagnet E may also be adjustable. The plates M, M' are of different thickness so as to have different natural frequencies and their distances apart and from the electromagnets is such that the amplitudes of vibration of the plates are equal when the frequency of the supply current is remote from the natural frequencies of the plates. The plates may be of sheet metal or mica carrying a sheet metal disc or cylindrical moulding. The plates may be circular, rectangular, flat, checkered, or corrugated and may be perforated or have a thickness which varies gradually from the centre to the periphery. Specification 125,645 is referred to.
Patent GB-843038-A (GB)
Title: Improved launching means for rocket-propelled missiles
Inventor: RANSOM RICHARD SUTTON
IPC: F41F3/052
Filed: 1958-02-25
Abstract: 843,038. Containers and launching means for self-propelled missiles. SHORT BROS. & HARLAND Ltd. Feb. 2, 1959 [Feb. 25, 1958],-No. 6055/58. Classes 9(1), 9(2) and 92 A self-propelled missile is provided with a rigid base member whereby the missile may be connected to a launching platform, the member being provided with spaced bosses which engage similarly spaced projections on the missile to locate the missile in the correct launching position. In addition a link comprising a shear pin anchors the missile to the member until severed by the missile leaving the launching platform. Preferably the member forms the base closure of a two-part container 21,22 for the missile as in Specification 843,037. The member 10 is an aluminium alloy disc with a central opening closed by a blow-out panel 11 and slotted lugs 12 project from the rear face of the disc to engage similar lugs on the platform (not shown). On the inner face of the disc are spaced bosses 13 each having a recess to receive similarly spaced projections 14 on the missile tail 15. A bolt 17 extends through the disc 10 into a socket 18 pivoted on a shear pin 19 passed through a lug 20 on the tail 15. The bolt 17 and lug 20 are so off-set from the projectile axis that the pin 19 is stressed in a plane passing through the centre of gravity of the missile. The casing 21,22 is provided with handles 225 and hoops 222, 223 facilitate rolling during stowage. Shock-absorbing material 23 protects the nose of the missile and the section 22 is provided with a lifting lug 224.
Patent GB-243505-A (GB)
Title: Improvements in and relating to the production of dyestuff intermediates
Filed: 1924-07-02
Abstract: p-Substituted benzoylbenzoic acids are converted, by treatment with strong sulphuric acid or weak oleum, into the corresponding 2-substituted anthraquinone derivatives, which are nitrated in the same sulphuric acid solution without isolation.  The crude products, which contain small quantities of oxy compounds, can be reduced with an alkaline reducing agent to the corresponding amino compounds, the oxy compounds remaining in the alkaline solution. According to an example, p-chlorbenzoylbenzoic acid (obtained from chlorbenzene and phthalic anhydride in presence of aluminium chloride) is heated with weak oleum and sodium nitrate-added; by pouring into water the nitro-2-chloranthraquinone is isolated and is then reduced by boiling with aqueous sodium sulphide solution; the product may be purified by dissolving in sulphuric acid and precipitating first the non-basic matter and then the amino compound by gradual dilution with water. Nitro- and amino-2-methylanthraquinones are similarly obtained from p-toluoylbenzoic acid.
Patent GB-576698-A (GB)
Title: Improvements in or relating to the electro-chemical surface cleaning of metal articles
IPC: C25F1/00
Filed: 1944-04-01
Abstract: 576,698. Electrolytic cleaning. RYLANDS BROS., Ltd., BROWN, R. S., and BRIERLEY, A. April 1, 1944, No. 6112. [Class 41] A process for cleaning the surface of a metal, particularly iron or steel, consists in subjecting the metal to a vigorous attack by a strongly oxidising acid, e.g., nitric, phosphoric or chromic acids. So as to convert the contaminating matter, such as lubricant, on the metal into a finely divided film of smut, which is easily removable by anodic treatment in an electrolyte, examples of which are given, of a solution of a mineral or organic acid, or salt thereof. The metal may be given a waterwash between the two stages of the process. An initial cleaning in acid may be given to remove rust or scale from the surface of the metal.
Patent GB-564630-A (GB)
Title: Improvements in or relating to abrasive wheel adjustments and other operations, suchfor example, as the loading on sensitive drilling machines
IPC: B24B49/16
Filed: 1943-04-16
Abstract: 564,630. Abrading &c. machines. BALLINGER, L. J. H. April 16, 1943, No. 6146. [Class 60] [Also in Group XXII] A visual indication is given of the correct loading of an abrasive wheel or drill driven through a fixed ratio drive by a constant-speed electric motor having a known B.H.P. / current curve. For this purpose, the ammeter 4 for the motor 3 which drives the wheel 1 by belt gear 2, is furnished with a scale 5 registering B.H.P. and a scale 6 indicating corresponding wheel diameters to secure correct loading.
Patent GB-935143-A (GB)
Title: Magnesium-base alloy
IPC: C22C23/04
Filed: 1962-02-16
Abstract: An alloy has the following percentage composition, by weight: .Zn.8.5-16 .Zr.0.1-1 .Rare earth metals.1-8 ..Mg the balance Part or all of rare earth metal can be replaced by Th which may be present from 0.5-8%.
Patent GB-1065932-A (GB)
Title: Cog wheels for model and toy building sets
IPC: A63H33/04
Filed: 1966-02-14
Abstract: 1,065,932. Toy building elements. LEGO SYSTEMS A.S. Feb. 14, 1966 [March 1, 1965], No. 6453/66. Heading A6S. Toy building elements comprise hollow parallel sided blocks adapted to be interconnected by uniformly spaced projections P by axial distances constituting a module q, and cog-wheel elements having teeth in accordance with the formula r=cq, where c is an integer and r is half the pitch diameter D.
Patent GB-1074061-A (GB)
Title: Domestic laundry machines
Inventor: STRONG HAMILTON GEORGE HENRY
IPC: D06F13/00
Filed: 1964-02-18
Abstract: 1,074,061. Washing machines. WILKINS & MITCHELL Ltd. and H. G. H. STRONG. Nov. 25, 1964 [Feb. 18, 1964], No. 6625/64. Heading D1A. An attachment, for use with a washing machine having an agitator 10 comprising a core 11 carrying a plurality of radial blades 13, comprises a sleeve 15 having a plurality of radial blades 17 slotted at their lower ends to straddle the blades of the agitator, a space 16 being formed between the core and the sleeve, the latter having apertures 20 communicating with said space. Detergent is charged into space 16 through the flared upper end of sleeve 15. Projections 21 on the lower end of sleeve 15 form a unit trap.
Patent GB-623230-A (GB)
Title: Improvements relating to pest destroying compositions
Filed: 1947-03-10
Abstract: A pest-destroying composition comprises baked discrete pieces containing metaldehyde, an alginate and a gum.  Optional ingredients include a filler such as bran, wheat, offal or starch.  A substance such as ammonium carbonate which liberates carbon dioxide during heating may be incorporated in the paste prior to baking.  Sodium alginate is the preferred alginate and gum acacia is the preferred gum; and these ingredients are embodied in the paste to be heated in the form of an aqueous solution.  Specification 508,125 is referred to.
Patent GB-468527-A (GB)
Title: Improvements in or relating to hinged doors and the like
IPC: E06B3/36
Filed: 1936-03-06
Abstract: 468,527. Doors ; preventing forcing of fastenings. WILKES, O. F., WILKES, F. W. G., and JONES, C. W. March 6, 1936, No. 6747. [Class 20 (iii)] Hinged double doors of cabinets or the like of the kind which are fastened by a bolt on one entering a recess in the other, are characterized in that one of the doors has an extension or abutment 6 coacting with the other door to prevent the doors being opened simultaneously while the bolt is engaged. The doors shown are of sheet metal, the extension 6 being a continuation of an inturned flange 5, and being provided with an inturned end 7 engaging between the flanges of the second door. As well as vertical flanges 7, 11, which are apertured for the lock bolt, flanges are provided on the remaining edges, and tongues 3 on the outer flanges are curled around a hinge pin and connected with curled ends of hinge strips 4 on the frame. The inturned flange 7 of the extension 6 is cut away at the top and bottom ends to fit between the body flanges 2 of the other door.
Patent GB-125742-A (GB)
Title: Improvements in or connected with Indicating Signalling or like Apparatus.
IPC: F16C1/12
Filed: 1918-04-22
Abstract: 125,742. Bowden Wire, Ltd., and Sentinella, A. E. April 22, 1918. Mechanical telegraphs.-A device for signalling two orders of different kinds under conditions in which audible signals are not usable, and more especially used for transmitting orders such as " range " and " direction " to the gunners of '' tanks," or orders to the drivers of the same, comprises one or more units, each unit consisting of a pair of pointers or indicators, and comprising concentric grooved pulleys which each form part of duplicated Bowden wire mechanism by means of which the messages are transmitted to separate indicating devices arranged near together. As shown in Figs. 2 and 6, a pair of transmitting devices-one for each gun crew of a tank-comprises disks o which are operated by handles n and are fitted with " range " numbers which are read by the transmitting officer through slots in the casing a, and pointers b on spindles c which are provided with operating handles e. The pointers b move over scales which indicate the angles at which the guns are to be set, and fixed to each shaft c is a grooved pulley f. The disks o are fixed to grooved pulleys l which are freely mounted on the spindles c. Duplicated Bowden wires, the inside members of which are connected to the pulleys f, l of the transmitting arrangements, and the outsides of which are constrained bv screws k, transmit the " angles " and " range " to a receiving apparatus at the gun position. The " range " indicator comprises a grooved pulley q, Fig. 6, on a wheel s which revolves in a casing r provided with a slit through which the number indicating the " range " is visible. The direction indicator comprises a pointer which moves over a scale indicating the direction in which the gun is to be trained. In a modification, Fig. 10, for transmitting orders to the driver of the tank, the direction of travel is controlled by a pointer b<1> on a shaft c<1> operated by a handle e<1> on a shaft c<1> provided with a pulley f<1>, and a travel controlling pointer o<1> moves over a dial a<1> and is connected to a freely mounted pulley l<1>. Duplicated wires connect the pulleys f<1>, l<1> to indicating devices arranged near the driver. Electric audible alarms may be used to call the attention of the operators when a signal is to be sent.
Patent GB-406134-A (GB)
Title: Improvements in and relating to burners for liquid fuels
IPC: F23D3/00
Filed: 1933-03-06
Abstract: 406,134. Liquid-fuel burners. METALLWARENFABRIK MEYER & NISS GES., 73, Kampchaussee, Bergedorf, near Hamburg, Germany. March 6, 1933, No. 6791. Convention date, March 5, 1932. [Class 75 (i).] The upper end of a wick b, Fig. 1, arranged in a burner ring a connected to a fuel supply pipe c is surrounded by a gasifying chamber d which is formed with air inlets e on both sides of the wick and communicates by an opening t with a combustion chamber formed by perforated steel or other bodies f, g. The opening t may be varied or entirely closed by a closure device h which may consist of sliding members similar to an iris diaphragm operated by a lever i. A slider movable with the lever i prevents the entrance of air through the slot in which the lever moves. In a modification the wick b is adjustable in an oil reservoir. Fig. 6 shows a lamp comprising two flat wicks k arranged in flat troughs, the discharge from the gasifying chamber to the combustion chamber being regulated by means of flat sliding members l operable by a rod m formed with right and left handed threads.