baber/WOPTO huggingface dataset:
Patent GB-1081731-A (GB)
Title: Improvements in and relating to transfer sheet material
Inventor: HICKMAN ALBERT STANLEY
IPC: B41M5/10
Filed: 1963-05-29
Abstract: A composition for use with a special carbon paper (see Division D2) comprises polythene/paraffin wax mixture, micro-crystalline wax and titanium dioxide, and is applied by hotmelt coating.ALSO:Compositions used in making carbon paper (see Division D2) comprise (in Example 3) ethylcellulose, spindle oil, pigment, methyl ethyl ketone and methyl isobutyl ketone, and may also contain tricresyl phosphate.ALSO:Duplicating sheet material comprises a base web carrying on its reverse side two superposed coatings comprising different pigments in the same binder.  The pigment of the second coating is lighter in colour than that of the first, so as to mask it.  The two coatings are transferable together upon the application of pressure to the obverse side of the base web so as to stick to a receptor surface coated upon a receptor sheet.  The binder may be chlorinated rubber, a cellulose ester, polyvinylidene chloride, ethylcellulose or a copolymer of vinylidene chloride and acrylonitrile.  Each coating may also include a plasticizer or an oil or both.  The first pigment may be carbon black and the second titanium white or a spirit-soluble dye.  The sheet material may be made by applying to the base web a solution in a volatile organic solvent of the components of the first coating, evaporating the solvent, applying a solution in a volatile organic solvent of the components of the second coating and evaporating the solvent.  The receptor surface may be of wax, e.g. beeswax, oxidized microcrystalline wax, montan wax or a mixture of paraffin wax and butyl rubber.  It may also contain a pigment, e.g. titanium dioxide and may be applied as a hot melt.  Alternatively wax emulsions such as polyethylene - paraffin emulsions may be used. The receptor surface may be on the obverse side of the same base web.  Such a sheet may be selectively desensitized by applying a patterned heated member to the receptor surface before the application of writing pressure, or the whole sheet may be desensitized by heating it after the application of writing pressure.  In another embodiment, the transfer coating contains a spiritsoluble dyestuff and is used to prepare a master sheet for spirit duplicating.  In another, the receptive coating or the transfer coating may be applied to parts only of the respective surfaces so that information is transmitted only at these places.
Patent GB-129914-A (GB)
Title: Heel Fasteners.
Inventor: NOLAN FRANCIS ALOYSIUS
IPC: A43B21/39
Filed: 1918-12-23
Abstract: 129,914. Nolan, F. A. Dec. 23, 1918. Protectors, securing.-A fastener for detachable heels which prevents the shoemaker from bending it when pounding the heel consists of a plate 5, Fig. 3, with upturned rims 6, 7, and a pair of openings having upturned flanges 16 extending to the same height as the rims. The plate is inserted in undercut slots on a rubber heel B as shown in Fig. 2, and secured to the leather heel by nails.
Patent GB-294551-A (GB)
IPC: C08L1/06
Filed: 1928-07-25
Abstract: 294,551. I. G. Farbenindustrie Akt.- Ges. July 25, 1927, [Convention date]. Addition to 278,684, [Class 2 (ii), Cellulose &c.]. Yarns, treating with liquids. - The process of the parent Specification, according to which the tendency to swell shown by hydrated cellulose is diminished by saturating the freshly-precipitated or dried hydrated cellulose with an aqueous or a feebly alkaline solution of a resinous condensation product, or materials forming such a product, which product is then rendered insoluble under alkaline conditions, is modified in that the treatment of the hydrated cellulose is conducted in a feebly acid solution with the addition of a buffer mixture. The aqueous solution of the condensation product may contain organic solvents, such as alcohol, water-soluble esters, glycol, monoglycol esters or ethers, formamide, or glycerine, and may contain also a softening agent, such as triacetin, and a wetting agent, such as a sulphonate or a soap. The treatment may be performed at ordinary or elevated temperature or pressure. In one example, viscose silk is steeped in a warm solution of dimethylolurea containing primary and secondary sodium phosphates, and is then dried at 110-120‹ C. In another example, cuprammonia silk is steeped in a solution of dimethylolurea containing primary and secondary sodium phosphates and glycol monoethyl ether, and is then treated as in the preceding example. Reference is made also to the use of monomethylolurea and dimethylolthiourea.
Patent GB-799306-A (GB)
Title: Improvements in or relating to hydraulically operated chucks
Inventor: BUTTERWORTH HAROLD
IPC: B23B31/20
Filed: 1955-07-27
Abstract: 799,306. Chucks. BUTTERWORTH BRITISH AUTOMATIC MACHINE TOOL CO., Ltd. July 23, 1956 [July 27, 1955], No. 21650/55. Class 83 (3). Chuck-operating mechanism for a fluidpressure jaw or collet-chuck comprises a piston 16, 17, displaceable axially of the chuckspindle 11 within a non-rotatable cylinder 18 surrounding the spindle, the piston acting on a thrust-bearing 32 to displace a chuck-operating member 13 rotating with the spindle. As applied to closing a bevel-closing collet 12 which is opened by its own resilience when the closing-force on the draw-spindle 13 is released, the bearing 32 is constructed to transmit thrust only in the required direction. The annular piston, in two parts 16, 17 clamped on the outer race 32a of the bearing as by screws 36, acts on the member 13 through a sleeve 15 bearing against a collar 14 secured to the spindle 13, the piston being prevented by a peg 19 from rotating in the cylinder, while the sleeve 15 rotates with, and is movable axially along, the hollow-spindle 11. The path of the reaction to the clamping-force passes through the cylinder-head 20, a thrust-bearing 21 engaged by the head 20, the inner-race 22b of a roller-bearing 22, a sleeve 23 and a nut 24 into the spindle, without passing through the main spindle-bearings in the headstock 26. Springs 35, between the cylinder-head 20 and the piston, assist the fluid-pressure in closing the collet, and a non-return valve and a pressure-control valve are provided in the oil-supply circuit, (not shown), to the collet-closing port B in the cylinder, which is attached to the headstock 26 by screws 38, a cover 27 excluding dust. An annular member 31, fixed to the shoulder 14 by a screw, carries a spring-pressed key 30 lodged in a keyway 29a in a feed-tube 29 for keeping the spring-finger 28 on the tube in correct angular relationship to the collet. The finger is withdrawn from the collet, by means not described, during a maching operation on the work, which is advanced through the spindle up to a stop when a valve (not shown), open the port B to admit fluid-pressure, and connects a port A, on the opposite side of the piston, to exhaust. In a modification, without a feedtube, Fig. 2, the piston has an increased length of stroke and an enlarged rear-face to facilitate opening of the collet or, as shown, the jawchuck 44, by means of the fluid-pressure admitted behind the piston through the port A. Screws secure the sleeve 15, moved by the piston, to the collar 14 of the draw-spindle 13. The Provisional Specification refers also to the use of a solid draw-spindle.
Patent GB-318992-A (GB)
IPC: B21D28/28
Filed: 1929-07-13
Abstract: 318,992. Mannesmannr÷hren-Werke. Sept. 14, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Punching. - Tubes are supported internally while being perforated by a punch d, by means of a member b in which the punching-die f is mounted, the part b being supported by a wedge c bearing against the opposite wall of the tube. The wedge is moved axially relatively to the punching-die after each operation of the punch, to allow the work to be fed. The actuation of the wedge may be effected in known manner by a curved disc and a flexible intermediate member. The die-holder may be so formed as to be actuated by a conical mandrel. In a further modification, the adjustment of the diameter of the die-holder can be effected by an eccentric.
Patent GB-583582-A (GB)
Title: Improvements in electric conductors for carrying high frequency currents
IPC: H01B11/18
Filed: 1944-11-06
Abstract: 583,582. Cables. BRITISH INSULATED CABLES, Ltd., and CARSTEN, H. R. F. Nov. 6, 1944, No. 21719. [Class 36] A conductor for high frequency currents is built up of a tubular braid of helically interlaced elements, each consisting of one or more secondary groups of wires L, R, each group being formed by two or more helically twisted primary groups of wires S, comprising seven or more insulated wires. In Fig. 2, each primary group S comprises 19 enamelled copper wires of 40 s.w.g. strand with a .75 inch lay, the secondary groups L, R being formed by helically twisting four primary groups S with a left or right handed 3 inch lay, respectively, each group S comprising seven or more wires, lightly insulated from one another, as by enamelling. The twelve elements B are each formed by twisting together a group L and a group R, and are braided together at an angle of 40 degrees to the axis over a flexible tube A of metal, rubber or synthetic rubber-like material, which may serve for circulation of a cooling medium. Since most braiding machines give the elements an additional twisting during the braiding operation, one half in a right-handed and one half in a left-handed direction, two sets of elements may be employed so that the direction of lay in the braid is in the same direction as that in the previous twisting operation. An insulated tube C of polyethylene, polyvinyl chloride or other low loss material is extruded, or applied by lapping over the braided elements B, and over this may be applied a further braid D, Fig. 1, enclosed in a lead or other metal sheath or an insulating and/or protective covering E. According to the Provisional Specification there may be an intervening layer of protective material between the metal sheath and the braid D. The thickness of the wires is between 30 and 48 s.w.g., being determined by the condition that the diameter in millimetres is approximately equal to the reciprocal of ten times the square root of the frequency in megacycles per second.
Patent GB-724631-A (GB)
Title: Improvements in and relating to clothes drying machines
IPC: D06F58/24
Filed: 1953-08-06
Abstract: 724,631. Rotary clothes drying apparatus. GENERAL ELECTRIC CO. Aug. 6, 1953 [Aug. 8, 1952], No. 21752/53. Class 34 (2). [Also in Group XXIX] In a clothes drying apparatus of the kind described in Specification 712,140 the cold water spray arrangement incorporates a baffle structure to prevent the escape of water vapour from the condensing chamber through the hole in the casing associated with said spray means. Cold water from the mains is supplied to a jet nozzle 36 via a strainer and solenoid-operated control valve, the nozzle being carried on a U-shaped bracket 42 of a fixture 39 comprising a base 40 arranged outside the rear wall of casing 11 of the condensing chamber 22 adjacent a hole 38 with a gasket 41 between the base 40 and the casing wall. A bushing 43 with a central opening 44 projects through the hole 38 and carries a hollow channel-shaped baffle 45 in the inner end of which is supported a rod-like target 48 having an eccentric pin 49 to allow of adjustment of position relative to the side flanges of baffle 45 to control the configuration of the spray. The arrangement prevents escape of water vapour through opening 44 and thus prevents formation of condensate on the cold parts of the exterior of the apparatus and the gap between nozzle 36 and base 40 prevents siphoning back into the main should the pressure therein fall and the water level rise within sump 27.
Patent GB-1353661-A (GB)
Title: Beam way and switching system for a train
IPC: E01B25/08
Filed: 1971-04-19
Abstract: 1353661 Beam way and switching system E SVENSSON 19 April 1971 [16 Feb 1970] 21821/71 Heading B7L A beam way system for a train comprises a plurality of inverted U-shaped prestressed concrete beams 28, of which alternate beam sections 22 are supported on bases 32, 36 by pairs of columns 38, each beam having on its top surface a centrally disposed train stabilizer rail 30 formed with tracks on its upwardly and outwardly diverging sides for engagement by stabilizer wheels of a train 26 while drive wheels of the train engage running surfaces on each side of the rail 30, and the beam way system is provided with a switch in the form of a Y- shaped beam 66 having a flexible stabilizer rail 68 fixed at the base of the Y to the stabilizer rail 30 of a first length of beam way while the other end of the rail 68 is movable by a cable and pulleys located in a brace 78 between the arms of the Y selectively to connect with the stabilizer rails of second and third lengths of beam way. The alternate beam sections 22 are supportingly connected to intermediate beam sections 24 by step and shelf joints which may be fixed or expansion joints. The drive wheels of the train may have pneumatic rubber tyres or may comprise adjacent pairs whereof one wheel is of smaller diameter and has a solid rubber tyre to safeguard against deflation of the other wheel. Alternatively steel driving wheels may engage steel rails formed in the upper surface of the beam 28 during casting thereof. In alternative embodiments the drive wheels and optionally the stabilizer wheels are replaced by air cushions  and a linear magnetic propulsion system, aeroplane type propeller, or jet engine is used. The latter embodiments of trains are used with a ground level beam way having an upstanding stabilizer rail.
Patent GB-700801-A (GB)
Title: Improved methods and apparatus for producing oxides of nitrogen
IPC: C01B21/20
Filed: 1946-07-22
Abstract: Oxides of nitrogen principally nitrogen peroxide are produced by passing a stream of nitrogen and oxygen in a gas or vapour phase, e.g. air through an alternating electric field of intensity and frequency producing a luminous glow discharge throughout the reacting substances and exciting free electrons to most probable velocities producing a balance between positive negative ionization of the respective reacting substances, the intensity and frequency of the electric field being such that the discharge has a column of positive ions extending downstream and surrounded by an annular stream of negative ions.  The reactants should be fed into the middle of a tube, having a surrounding conductor or conductors, e.g. a coil, or a pair of rings or plates, forming the output of a high frequency oscillator, at a zone of maximum voltage intensity or at a zone intermediate zones of a maximum and minimum intensity.  The product gases should be rapidly withdrawn through a field of decreasing voltage intensity and a ground shield may be provided round the outlet.  The reaction is started by initiation ionization by ultra-violet light.  Various types of reaction tube with or without attachments for modifying the electric field are described. Experimental results are quoted using voltages of 4.000-4290, frequencies of 27.9-43.2 megacycles, at pressures from 4.69-487 m/m. of mercury, depending on the type, inlet position and diameter of the reaction tube.  The Specification as open to inspection under Sect. 91, comprises a general application to accelerating or decelerating chemical reactions and refers specifically to reacting (1) nitrogen and hydrogen to ammonia, (2) carbon monoxide and hydrogen to methyl alcohol, (3) sulphur dioxide and oxygen to sulphur trioxide, (4) carbon dioxide and methane to acetone, (5) hydrogen and neon to a form of hydride.  This subject-matter does not appear in the Specification as accepted.
Patent GB-808552-A (GB)
Title: Improved tool-holder
IPC: B23B31/38
Filed: 1954-07-27
Abstract: 808,552. Attachments for drilling, tapping, &c. HALL, N. L., and HARDMAN, J. W. July 13, 1955 [July 27, 1954], No. 21835/54. Class 83 (3). An attachment for drilling, reaming, tapping, &c., comprises two main parts 11, 17 which, under normal loading conditions, are substantially non-rotatable relatively to each other but are relatively displaceable in a plane perpendicular to their longitudinal axes in all radial directions to compensate for misalignment between a tool, carried by the part 17, and the work, the part 11 being held by a tailstock &c. and an adjustable clutch permitting rotation of part 17 if the tool is subjected to excessive torque. The tool is secured in a split collet of phosphor bronze in the end of a sleeve 23 held in the part 17 by a circlip, and slotted at its end to engage a peg 21 in the part 17. A conical surface on the part 17 is pressed by a spring 18 against the co-operating surface of a phosphorbronze bush 16, the part 17 slipping in the bush upon the application of excessive torque. Two of four radial slots in the end face of a housing 13 for the bush 16 freely receive pins 12 carried by the part 11 and permit a limited amount of radial displacement in all directions, the housing being held against the flanged part 11 by a collar 15, which also retains a rubber ring 14, provided to align the axes of the parts 11, 17. The slipping torque of the conical clutch can be checked by replacing the sleeve 23 by a key with a slotted end to engage the peg 21. The part 11 may have a cylindrical or conical shank.
Patent GB-778100-A (GB)
Title: Improvements in or relating to laminated articles
IPC: B32B27/00
Filed: 1955-07-28
Abstract: Laminates consisting of alternate layers of a silicone rubber and of an organic rubber are made by co-vulcanizing superimposed layers of an organic rubber polymer in which there remains prior to co-vulcanization at least 0,5 per cent of residual double bond unsaturation, and an organopolysiloxane rubber polymer in which at least 0,01 mol. per cent of the polymer units has at least one alkenyl group attached to the silicon atom prior to vulcanization the remaining group or groups being either saturated hydrocarbon radicals, aryl hydrocarbon radicals, halogenated hydrocarbon radicals or a mixture thereof, there being on the average a total of 1,9-2,1 organic radicals per silicon atom.  The organic rubber polymer may be obtained by polymerizing a diene e.g. butadiene, dimethylbutadiene, isoprene, chloroprene or by copolymerizing two or more dienes or by copolymerization of a diene with isobutylene, styrene, acrylonitrile, methylacrylate, vinyl chloride, vinylidene chloride, vinyl acetate, vinyl carbazole, coumarone, indene or vinyl toluene. Examples of the alkenyl radicals used are vinyl, allyl, heptanyl and octadecenyl; of the saturated hydrocarbon radicals are methyl, ethyl, butyl, octadecyl and cyclohexyl; of the aryl hydrocarbons are phenyl, tolyl and xenyl and of the halogenated hydrocarbon are pentafluoroethyl, dichlorophenyl, trifluorovinyl, heptachloroxenyl, dibrompohenyl and chlorocyclohexyl.  Many examples of covulcanizing agents; of fillers such as silica fillers and metal oxide fillers; of accelerators, of oxidation inhibitors and of activators are given.  The layers may be extruded over one another either in flat or tubular form and reinforcing fabrics such as cotton, nylon, glasscloth or metallic wire mesh may be included in the layers or between them.
Patent GB-412433-A (GB)
Title: Improvements in and relating to exciting circuits for dynamo electric machines
IPC: H02P7/34
Filed: 1933-08-03
Abstract: 412,433. Automatic regulation; control of D.C. motors. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Aug. 3, 1933, No. 21866. Convention date, Aug. 3, 1932. [Class 38 (iv).] Varying E . M . F .-The excitation d of a generator a in a Ward-Leonard system is supplied from A.C. mains R.S.T. through one of two grid controlled discharge tubes n1, n2 selectively rendered operative by a switch g for forward or reverse operation and whose grid voltages are obtained from a phase shifting circuit i1, m1, or i2, m2 controlled by a discharge tube n1 or n2 whose conductivity is controlled by the armature voltage of the generator. The phase shifting circuits are arranged on the primary sides of the transformers k1, k2 supplying the grid to control A.C. voltages for the valves h1, h2 and comprise a resistance m1, m2 in series with one branch l1, l2 of the transformer windings which are energized from the three-phase supply. The discharge tube n1 or n2 byepasses the resistance m1 or m2 in response to the armature voltage of the generator a and causes variation in the phase of the A.C. supplied to the grid of the valve h1 or h2 with respect to its anode voltage so as to vary the excitation of the generator a. The arrangement operates automatically during starting and running. Additional discharge tubes such as h1 and h2 may be provided to give full wave rectification of the exciting current. The resistances m1, m2 may be inductive resistances and may be regulable so as to provide several degrees of control.
Patent GB-257955-A (GB)
Title: Improvements in and relating to methods and apparatus for fusing metals by the electric arc process for welding, cutting, and other purposes
IPC: B23K28/02
Filed: 1926-09-06
Abstract: 257,955. British Thomson-Houston Co., Ltd., (Assignees of Langmuir, I., and Alexander, P. P.). Sept. 5,1925, [Convention date]. Drawings to Specification. Lathe and like tools; dies. - An alloy known under the registered Trade Mark as "Stellite" may be deposited on a backing to provide a hard wearing or cutting layer for a die or tool. An electric arc is employed, maintained in a gaseous medium containing hydrogen and nitrogen. The hydrogen is in sufficient quantity, not less than 6 per cent by volume, to combine with any oxygen occluded in the electrode or work or diffused into the atmosphere around the arc or brought in from atmospheric air by eddy currents, and thus to obtain ductile welds by preventing the formation in the weld metal of nitrides, as is the case when arc-welding is effected in nitrogen in the presence of a very small quantity of oxygen. When welding in the open air 20 per cent of hydrogen may be used. With a mixture consisting of 20 to 25 per cent of hydrogen the arc voltage may correspond to the voltage used for welding in air and for a mixture containing 75 per cent of hydrogen an arc voltage of 75 may be used. The arc may be struck between a carbon, iron or steel, tungsten or other metal electrode and the work or between a number of electrodes, which may be non-consuming. Welds effected in alloys which tend to absorb hydroger and become porous, such as nickel chromium alloys are rendered less porous.
Patent GB-257957-A (GB)
Title: Improvements in or relating to radio-active substances and preparations thereof
IPC: A61K51/12
Filed: 1926-09-06
Abstract: 257,957. Fischer, R. July 24, 1926, [Convention date]. Radio-active substances and preparations thereof.-A colloidal solution for use as a vehicle or carrier for radio-active substances, particularly for radium emanation, comprises water, an alkali- or alkaline-earth metal halide, an organic colloid, an acid containing an amino-group, and an alkali. or alkaline-earth metal hydrate. In preparing the solution, the organic colloid, e.g. gelatine, is dissolved in an aqueous solution of the halide, e.g. in physiological salt solution, preferably by heating under pressure. The nmino-acid, e.g. diamino-caproic acid or its hydrochloride, is added to the cooled solution and the mixture is finally rendered feebly alkaline by the addition, e.g., of lime water. Suitable proportions are indicated by way of example.