baber/WOPTO huggingface dataset:
Patent GB-789310-A (GB)
Title: Improvements in or relating to the production of dyestuffs on the fibre
IPC: D06P1/00
Filed: 1955-10-27
Abstract: Dyestuffs of the naphthoylene-aryl-imidazole series and of the naphthalo-perinone series are formed on the fibre by applying an aqueous composition comprising (1) a compound having at least two carboxylic acid groups in peri-position to each other or a nuclear substituent thereof; (2) an o-diamine or peridiamine or a substitution product thereof; and (3) a condensing agent comprising an acid or an ammonium salt thereof, and then heating, e.g. by steam. Specified carboxylic acids are naphthalene-1,8-dicarboxylic acid and 1,4,5,8-tetracarboxylic acid, 1,2 - benzanthraquinone - 3,41 - dicarboxylic acid, 2,81,8,21-dioxydo-1,1-dinaphthyl-4,5,41, 51-tetracarboxylic acid, 1,2,21,11-dinaphthazine-4,5,41, 51-tetracarboxylic acid, azo dyestuffs obtained by coupling diazotized 3-aminonaphthalene-1,8-dicarboxylic acid with arylamides of 2-hydroxynaphthalene-3-carboxylic acid or of acetoacetic acid or by coupling diazotized amines with hydroxynaphthalene-1,8-dicarboxylic acid, and azo compounds obtained by oxidation of amino-naphthalene-1,8-dicarboxylic acid such as 3,31-azodinaphthalene-1,8,11,81-tetracarboxylic acid.  Specified amines are o-phenylene diamine and its substitution products, several of which are given, and 1,8-naphthalene diamine and its substitution products, several of which are given.  The aqueous composition may contain water-miscible solvents such as thiodiglycol, glycol monomethyl ether, glycerol and diglycol and, when employed for printing, the usual thickeners.  Specified condensing agents, which may be admixed, are lactic, glycollic, sulphoacetic, methane disulphonic, benzene sulphonic and phosphoric acids and their ammonium salts.  Numerous examples describe the printing and dyeing of cotton, viscose rayon and acetate rayon, and in one case resist prints are obtained by first printing on a diethylene triamine paste prior to dyeing with the aqueous composition, the diethylene triamine inhibiting formation of the dyestuff.
Patent GB-536829-A (GB)
Title: Improvements in or relating to agitators for suction cleaners
IPC: A47L9/04
Filed: 1939-11-27
Abstract: 536,829. Vacuum cleaners. HOOVER, Ltd. Nov. 27, 1939, No. 30889. Convention date, Nov. 28, 1938. [Class 8(i)] A rotary agitator of a vacuum cleaner comprises a cylindrical body carrying rigid beater ribs and formed with grooves in which are removable brushes comprising tufts C individually mounted to rotate under centrifugal action on a wire E extending along each groove. The wires are supported at intervals by partitions F<SP>2</SP> in the grooves. According to the Specification as open to inspection under Sect. 91, a number of tufts are mounted on a single pivoted backing which can be removed, turned end for end, and replaced, this action causing the radial distance of the brush to be altered. Further several such brushes may be mounted each para11e1 to the axis, but circumferentially spaced to form a helical brush assembly which may be radially shifted to allow for wear. This subjectmatter does not appear in the Specification as accepted.
Patent GB-793820-A (GB)
Title: Accelerometers
Inventor: WING WILLIS G
IPC: G01P15/13
Filed: 1955-10-28
Abstract: 793,820. Electric measuring systems. SPERRY RAND CORPORATION. Oct. 28, 1955, No. 30967/55. Class 40 (1). In an integrating accelerometer a float is supported in a viscous liquid so as to move at a rate directly proportional to the acceleration of the supporting platform. The distance moved by the float, from a datum position, is a measure of the velocity of the platform. The float forms the moving plate of a variable condenser system of which the change in reactance with float position is used to give an electrical indication of support acceleration. Temperature control of the liquid is effected, electrically, to maintain the viscosity constant. As shown, the annular shaped float 22 floats in liquid and with the separate cylinders 20, 28, 30 forms a condenser the reactance of which varies with the axial displacement of 22 relative to 28, 30. To maintain 22 centrally positioned in the space between 20 and 28, 30, the outer casing 6 is continuously rotated about the longitudinal axis by motor 10. The temperature of the fluid is maintained at a constant temperature by the electric heater 50 controlled by switch 82. The latter is operated by the plunger 62 which is moved by cup 13 which is sensitive to fluid volume changes. The datum temperature is fixed to organic chemical " coumarin " in container 52 which melts at a temperature above ambient temperature with a marked increase in volume.
Patent GB-451267-A (GB)
Title: Improvements in and relating to automatic telephone systems
IPC: H04Q3/00
Filed: 1934-10-29
Abstract: 451,267. Automatic exchange systems. KLEIN, J., 24, Zapolya utca, and BULISSA, K., 4, Falk Miksa utca, both in Budapest. Oct. 29, 1934, No. 30990. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 29, 1935]. [Class 40 (iv)] When a connector set by an ordinary calling party finds the wanted party busy, common apparatus associated with the connector connects warning tone, which may be busy tone, to the established connection to inform the parties thereof that one of them has been called. The tone is removed after a predetermined period. Only the b wiper and cam Q of the sequence switch of the connector are shown, the remainder being additional apparatus for the purpose of the invention. If the line tests busy, ground is connected to Q and operates Hj whereupon start-relay Kij makes the driving circuit of magnet KM of one or more hunting switches adapted to connect common equipment to the connector circuits. When the switch finds the connector, Vj pulls up to stop the switch and Hj is short-circuited to release the start relay. Fj now operates to connect the busy signal FH to the called line and energize thermal relay Htj, which after a delay, operates Tj to disconnect the signal.
Patent GB-249608-A (GB)
Title: Improvements in and relating to electrical conductors
IPC: H01B13/02
Filed: 1924-12-29
Abstract: 249,608. Parsons, Sir C. A., Rosen, J., Grey, A. W., and Blair, B. Dec. 29, 1924. Conductors, apparatus and processes for making; flat strip conductors.-In an electric conductor formed by winding a number of insulated strands on an insulating core, the core is formed of a plastic material which is forced into the interstices between the strands, the process and apparatus being similar to those described in Specification 16620/08. The strands b are wound on the strip of insulating material h, which may be presspahn, by means of a rotating frame carrying bobbins a, a fixed die c and a dummy core f, which may be hollow, the strip of insulation passing through it. A flattened conductor such as Fig. 6, formed as described, may be used as a core for additional layers, further strips of insulation being introduced, giving the arrangement shown in Fig. 7. In thise case the central core takes the place of the dummy core f. If the insulating strip is of suitable material, such as a bitumastic compound, the separate strands may be uninsulated.
Patent GB-1148201-A (GB)
Title: Hydraulic fracturing of subsurface earth formations
Inventor: KIEL OTHAR MEADE
IPC: E21B43/26
Filed: 1966-07-12
Abstract: 1,148,201. Wells &c. ESSO PRODUCTION RESEARCH CO. 12 July, 1966, No. 31198/66. Heading E1F. A method of fracturing or increasing a fracture in a formation surrounding a well comprises feeding a fracturing fluid down the well with a less viscous fluid so that the less viscous fluid forms a film or layer between the well and the fracturing fluid. The ratio of viscosities of the fluids ranges from 10:1 to 100:1 at 70-80F. The less viscous fluid may have a viscosity of 0.5-100 cps at 70- 80F, and the fracturing fluid may have a viscosity of 100-10 million cps at 70-80 and carry 0.5 1b/gall-201b/gall of sand. The fluids may be introduced into the well as an emulsion and an agent added to facilitate separation of the fluids in the well. The fluids may be introduced into the well as a loose admixture containing a de-emulsifier but preferable the less viscous fluid which may contain a wetting agent is introduced as an annulus surrounding a core of the fluids, which may contain a propping agent, a surfactant, or deemulsifier. The fracturing fluid may be a water in oil emulsion, and the less viscous fluid may be water. For water wells the fracturing fluid may be thickened water, and the less viscous fluid may be a light oil. The fluids may be injected in a space between tubing and casing, the fracturing fluid being located between annulii of less viscous fluid. The fluids may be heated prior to injection in the well or the formation may be cooled before fracturing. When the fracture is formed the fluids may be removed by a solvent. The fluids may be followed by a sand free fluid to clear the well. The fluids may be preceded by a fluid having a small viscosity.
Patent GB-703474-A (GB)
Title: Improvements relating to the production of organic sulphonic acids
Inventor: KENNEDY GORDON TELFORD
IPC: C07C303/14
Filed: 1949-12-06
Abstract: Sulphonic acids are prepared by reacting saturated aliphatic or cyclo-aliphatic hydrocarbons in the liquid phase with sulphur dioxide and oxygen in the presence of chlorine as catalyst under the photochemical action of visible radiation of such a wavelength that it is absorbed by the chlorine.  Reaction may be effected by passing the gases into the liquid hydrocarbon or solution of solid hydrocarbon at about ordinary temperatures.  Preferably, two mols. of sulphur dioxide are used per mol. of oxygen while the amount of chlorine is generally about 2 per cent. of the weight of the sulphur dioxide and chlorine.  The chlorine may be added at intervals during the reaction.  In some cases, once reaction has been initiated the supply of chlorine and the irradiation may be terminated.  The hydrocarbons preferably have no branched or side chains; those containing 12-20 carbon atoms, e.g. kerosines and Fischer-Tropsch hydrocarbons yield surface-active products. Examples describe the sulphonation of n-heptane, n-dodecane, n-tetradecane (the sulphonate being isolated in the form of its ammonium salt), a Fischer-Tropsch fraction B.P. 235 DEG -280 DEG C. and cyclohexane, the sulphur dioxide, oxygen and catalytic chlorine being fed into the hydrocarbon contained in a glass flask maintained at about 30 DEG C., and illuminated by means of a mercury arc lamp (the glass absorbing much of the ultraviolet light) or a tungsten filament lamp.
Patent GB-270186-A (GB)
Title: Improved pocket-knife
IPC: B26B1/04
Filed: 1926-12-10
Abstract: 270,186. Kaufmann, E. Dec. 10, 1926. Pocketknives having at least two blades on a common pivot at each end of the handle, adjacent blades being separated by a partition i, and a back b with inturned ends against which the blades abut in the open position, have the blades e - - - h held in the open position by springs k, l pivoted on a central rivet m.
Patent GB-707526-A (GB)
Title: Improvements in fencing stakes
Inventor: TOWNSEND GEORGE STANLEY
IPC: E04H12/22
Filed: 1952-12-12
Abstract: 707,526. Fencing. MYLODEN MOTORS, Ltd. May 18, 1953 (Dec. 12, 1952], No. 31515/52. Class 45 A fencing stake 10 is provided, near the bottom with one or two triangular plates 13. forming a ground anchor, the upper horizontal edge 14 of the or each plate being turned over to give an extra grip in the ground to prevent lateral rocking of the stake and also to enable the stake to be pressed into the ground without damaging footwear. The plate or plates are connected to the stake by welds 12. When two are provided each is bent to angle shape and they are welded to opposite sides of the stake to form an X in plan view.
Patent GB-281316-A (GB)
Title: Improvements in proofed paper and method of producing same
IPC: D21H17/61
Filed: 1927-11-24
Abstract: 281,316. Scutan Co., (Assignees of Reid, J.). Nov. 26, 1926, [Convention date]. Waterproofing; proofing processes and compositions. - A proofed flexible sheet of paper is produced by passing a thin sheet of close-grained fibrous cellulosic material through or in contact with a bath of bituminous proofing material of relatively high melting point and heated to a temperature substantially above 250‹ F., removing the sheet before it is saturated with proofing material, and cooling rapidly the proofed surface. A preferable proofing material comprises a mixture containing a bituminous product known as mineral rubber 100 parts, scale wax 10 parts, and Montan wax 2 parts. The mixed bath has a melting point of above 250‹ F., and is heated preferably to a temperature of 450‹ F., at which it is liquid but still very viscous. A web of paper is passed through the heated bath, remaining in it only about five seconds. Air and moisture are driven from the web, which becomes impregnated on both surfaces, as shown at a on the Figure, but with little permeation toward the centre b of the sheet. Surplus proofing material is stripped from the web as it leaves the bath to allow of rapid cooling, which may be accelerated by passage over a chilled roll, to avoid carbonization of the dry middle fibres of the sheet. From 15 per cent to 35 per cent by weight of proofing material is preferably incorporated with the paper, which will give a product with about one third or one quarter of its thickness not infused. The web may be proofed similarly on one side only by passing it over a roll dipping in a bath of the proofing agent, the web again being cooled quickly.
Patent GB-611622-A (GB)
Title: Improvements in photographic cameras particularly photo-mechanical cameras
IPC: G03B27/52
Filed: 1945-11-24
Abstract: 611,622. Photographic cameras. HULL, S. V., SMITH, F. H., and PICTORIAL MACHINERY, Ltd. Nov. 24, 1945, No. 31742.. [Class 98 (i)] An optical system, for use in a photographic camera and adapted to produce at will either normal unreversed or laterally reversed images while the directional relations between object and image remain constant, comprises two reflecting surfaces, one of which is fixed in directional relationship to the object and the other is fixed in relation to the optical axis of the camera, but is movable in directional relation to the fixed reflecting surface so that in one position of said movable surface the light beam is reflected only by the movable surface to produce a reversed image, while in the other position it is reflected by both reflecting surfaces to produce an unreversed image. As shown, the known combination of camera lens 12 and isosceles right-angled prism 14 having entry and exit faces 21, 22 is used to produce a reversed image. A second prism 16 lies below the lens and the first prism, its two perpendicular rectangular faces 25, 26 being parallel and perpendicular respectively to the plane containing the axial ray and the faces 22, 26 lying in the same plane. By rotating the prism 14 through 90 degrees about the axis of the camera lens 12, so that the faces 22, 25 are adjacent and parallel and the two prisms are arranged Porro-wise, an inverted and reversed, i.e. normal, image is produced. In modifications, the prism 14 is rotatably carried on the front wall 18 of the camera and carries the lens 12 on its face 22 while the prism 16 may be disposed above the prism 14. The prisms need not be right-angled, but merely of supplementary angles although in such cases the object and image planes may be non-vertical. The Provisional Specification refers to the . use of mirrors instead of prisms and specifies aluminium as an alternative to silver for the reflecting surfaces. The Provisional Specification also describes an arrangement wherein the axis of the light beam from the object is at 60 degrees to the camera axis. A mirror is arranged at 30 degrees to the camera axis and this alone produces a reversed image. A second mirror is arranged on the axis of the camera at 60 degrees to it and farther from the camera than the first mirror. To produce unreversed images the first mirror is caused to turn through 120 degrees about the point of intersection of its own plane with the normal to the second mirror at the point at which the camera axis meets it. Instead of mirrors, the first reflector may be an equilateral prism, while the second fixed reflector may be a 120 degrees prism.
Patent GB-198383-A (GB)
Title: Improvements in electric fuses or cut-outs
IPC: H01H85/055
Filed: 1921-11-28
Abstract: 198,383. Hope, V. Nov. 28, 1921. Fusible cut-outs; couplings.-In an enclosed or cartridge fuse at least two chambers are provided communicating by an opening or openings. one containing the fuse and a powdered or granular incombustible packing which gives off an inert gas when heated, and the other forming an expansion chamber. A number of small openings around the centre of the fuse chamber may be covered by copper gauze and a zinc fuse used in a filling of partly calcined marble dust with asbestos wool or like resilient filling at the ends. Such a fuse is undamaged after a direct short circuit and may be reloaded. Alternatively a number of unobstructed holes of small diameter may be employed. In a further modification, larger holes fewer in number are used in conjunction with means which impose an initial check to the egress of the contents of the fuse chamber on rupture of the fuse, such as paper secured by an adhesive, then fabric or a split cylindrical metal clipping ring which may be forced away from the holes before the pressure generated exceeds, for example, 20 lbs. per square inch. Such means allow the powder to escape with the volatilized zinc into the expansion chamber, the simultaneous generation of CO2 suppressing the combustion. In such an arrangement comparatively large holes are grouped centrally at one side of the fuse chamber. Barium sulphate or Kieselguhr, or other heavy inert powders which are not fused or decomposed under the conditions existing, may be mixed with the marble dust. The outer casing in ail forms is made substantially gastight and may be of metal. The expansion chamber may be con stited in any manner, for example, an annular space between the fuse container and the enclosing casing, but various alternative arrangements are described including some in which the outer casing encloses a number of fuse cartridges having outlets to the expansion space in the casing. Cross sections of suggested arrangements of expansion chambers B and fuse chambers A are shown in Figs. 1<A> to 6<A>. In Figs. 2<A> and 4<A> two concentric expansion chambers B, B' are shown. Several forms of fuse are described, sections of which are shown in Figs. 8, 18, 12, 24 and 30. A being the chamber containing the fuse and filling powder and communicating by the opening a<1> covered by the spring ring D with the expansion chamber B which is rendered substantially gas tight by the washers and has terminal fittings shown. In certain forms the latter comprise coned nuts, screws or screw caps co-operating with coned seatings and in the form shown in Fig. 24 the electrical connection between the fuse C and terminal contact 32 is made by split double cones 31 held together by flexible bands 31a which are tightened up on screwing into place the end caps 33.
Patent GB-801358-A (GB)
Title: Improvements in or relating to a record player turntable change speed converter
IPC: F16C19/10
Filed: 1955-11-08
Abstract: 801,358. Ball bearings. CONTINA BUREAUXUND RECHENMASCHINENFABRIK A.G. Nov. 8, 1955 [Nov. 20, 1954], No. 3192/55. Class 12 (1). [Also in Group XXXVIII] A record player turntable change-speed converter comprises, in the embodiment shown, two spaced coaxial friction discs 3, 7, an annular plate 5 having an arm 12 for preventing its rotation, two coaxial anti-friction bearings, e.g. ball bearings 4, 6, the first, 4, being disposed between the first disc 3 and the plate 5 and having a cage 9 secured to the second disc 7 and the second, 6, being disposed between the plate 5 and the second disc 7, and means for connecting the friction discs together axially whilst permitting relative rotation; in operation, when disc 3 is centrally located on the turntable 2 of a record player 1 and the plate 5 is stationary, the first bearing 4 and cage 9 transmit such a drive from the turntable 2 to the second friction disc 7 that the latter, acting as an auxiliary turntable, rotates at half the turntable speed. The first disc 3 is secured by a bolt 10 to the second disc 7. A rigid stop 13 on the record player 1 holds the arm 12 against rotation. In the other embodiment, not shown, the above described embodiment is kinematically reversed to produce a speed-doubling converter.
Patent GB-143476-A (GB)
Title: Improvements in or relating to kitchen ranges
IPC: F24B1/00
Filed: 1919-12-20
Abstract: 143,476. Rousell, T. R. Dec. 20, 1919. Convertible close and open fire-places.-A device for rendering open the closed fire-place of a cooking-range consists of a hood or casing b, with a top b<1>, a grilling or like grid d, and an open front and back. This is placed above the firegrate, as shown, after removing the fire-cover and like parts. The top b<1> serves as a hob or hot plate.
Patent GB-681380-A (GB)
Title: Improvements relating to the construction and operation of betatrons
Inventor: HEYMANN FRANZ FERDINAND
IPC: H05H11/00
Filed: 1949-12-13
Abstract: 681,380. Magnetic induction accelerators. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 3, 1950 [Dec. 13, 1949], No. 31992/49. Drawings to Specification. Class 39(i) In a betatron the conductive coating on the inner walls of the toroidal accelerating chamber is split in radial planes into at least two separate segments which are each connected with a point of constant potential through impedance; the currents flowing to the two segments may then be measured or compared for example by means of cathode-ray oscillographs, so that the timing of the electron injection may be correctly adjusted. Each segment may comprise a group of smaller segments.
Patent GB-1439366-A (GB)
Title: Railway crosstie
IPC: B29C48/92
Filed: 1973-07-05
Abstract: 1439366 Moulding cellular polyethylene DOW CHEMICAL CO 5 July 1973 [5 July 1972] 32045/73 Heading B5A [Also in Division E1] A cellular polyethylene railway sleeper having a density of 20-50 lb./ft.<SP>3</SP> is produced by plastifying the foamable polyethylene in an extruder 1 and forming it into a web 4 which is desposited in a mould 6, the mould being mounted on a table 7 reciprocable on rails 13 so that the web may be deposited in layers by movement of the mould beneath the extruder die 3. Movement of the table 7 is effected by means of a rack 19 attached to the mould table and a pinion gear 18 driven by a motor 14. The movement is controlled by unit switches 21 and 22, stops 23 and 24 and an interconnected timer system 20, the mould being delayed at the end of travel to enable filling at the ends of the mould to the desired level. When the mould has thus been filled, it is removed and closed and the foaming completed in the closed mould. A fibre reinforcement may be incorporated in the polyethylene composition. By variations of the composition fed to the extruder during the moulding cycle, the sleeper produced, may have areas of different density or composition, e.g. a greater proportion of fibres at the top and bottom surfaces than in the centre.