baber/WOPTO huggingface dataset:
Patent GB-347789-A (GB)
Title: Means and methods for recording and revealing small movements or pressure changes, for example, in recording sound
IPC: G11B7/00
Filed: 1930-02-15
Abstract: 347,789. Indicating by optical devices. EWLES, J., 1, Bainbrigge Road, Headingley, and CARTER, A. F., 15, St. John's Grove, both in Leeds. Feb. 15, 1930, No. 5119. [Class 106 (iv).] For revealing and recording small movements or pressure changes, for example, in recording sound, a device is used comprising a cell filled with a fluid and having a relatively large aperture closed by a rigid member flexibly attached to the cell walls, and a smaller aperture closed by a transparent or reflecting flexible boundary. The arrangement is such that movements of or pressure changes applied to the larger movable boundary cause corresponding movements of the boundary of the smaller aperture which effect the modulation of a beam of light. Such modulations may be recorded photographically on a film. Two smaller apertures with flexible boundaries may be provided, to modulate simultaneously two beams of light. In the construction shown in Fig. 1, a cell A filled with a transparent fluid B is closed at one side by a part C mounted on a flexible annulus D. In the wall opposite to the member C is a small aperture covered by part F<1> of a sheet F of transparent rubber or the like. The initial curvature of the part F<1> can be varied by adjusting a fluid tight screw piston G. An auxiliary cell Bl containing fluid may be provided by fixing a plate G<1> externally to the cell A, a deformable ring H of rubber &c. being arranged as shown. When a beam of light is passed through the cell in the direction a, b and the member C is moved (for example vibrated by attachment to the moving coil of a loud-speaker) changes of convergence or divergence of the beam are caused by the variations in curvature of the part F<1>, and such modulations of the beam may be recorded photographically. In a modification, Fig. 2 (not shown), the fluid is contained in a downwardly flared cylindrical cell, across the base of which the larger movable wall is mounted, whilst two oppositely disposed light apertures are formed in the body of the cell, one of them being covered by the smaller transparent flexible member and the other by a window. A screw cap is provided to vary the capacity of the cell. Fig. 3 shows a further modification, in which a mirror K forms or is attached to a rigid member which constitutes part of the movable member F covering the smaller aperture in the cell. The mirror is hinged, under spring control, at K<1>. By this means, a light beam may be caused to vibrate between the limits a<1>, bl, across a light-sensitive medium. The fluid B in the cell mav in this case be either transparent or opaque. A similar construction to that shown in Fig. 3 embodies a transparent member, arranged like the mirror K, but adapted as it vibrates to cause deviation of a light beam passing through the cell. In still another modification, the smaller vibrating member is wholly flexible and reflecting, and acts as a mirror of varying curvature.
Patent GB-180024-A (GB)
Title: An improved process for purifying gases
IPC: B01D53/48
Filed: 1921-02-14
Abstract: Gases for use in the catalytic production of ammonia, and from which sulphur compounds not containing carbon have been removed, are purified from carbon oxysulphide by passing them through activated charcoal kept in an alkaline condition by introducing ammonia or applying the ammonium salt of a weak acid in the presence of water or water vapour, which maintains a layer of moisture on the surface of the charcoal.  Air or oxygen, if not already present in sufficient quantity, is added to the gases before they reach the charcoal to decompose the carbon oxysulphide and so maintain the activity of the contact mass.  The process may be carried out at ordinary or at raised pressure.  Specification 153,297, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-1378714-A (GB)
Title: Process for the production of a high polymer flexible reinforced hose for conveying high pressure fluids and a hose produced thereby
IPC: B29D/
Filed: 1972-02-04
Abstract: 1378714 Reinforced polymeric hose INDUSTRIE PIRELLI SpA 4 Feb 1972 [16 Feb 1971] 5284/72 Heading F2P A flexible polymeric hose incorporates at least two layers of reinforcement separated by an interlayer of polymer impregnated non-woven fabric. The fabric is of the "soft" kind wherein natural or synthetic textile fibres are joined by welding or adhesive at their crossing-points so as to have relatively large interspaces between the fibres to allow penetration of polymer therein (e.g. during calendering).  In a process for making such a hose a polymeric inner tube is covered by reinforcement layers, the reinforcement layers being separated by a "soft" non-woven fabric impregnated with the same polymer, and the outer layer of reinforcement being covered with the same or a different polymer. The hose is preferably vulcanized after completion, the interlayer being stated to maintain the separation of the reinforcement layers under the high vulcanizing pressure. The reinforcements may be spirally wrapped or braided. The polymer may be an elastomer or plastomer and may be bonded to the fabric by suitable adhesive.
Patent GB-373199-A (GB)
Title: Centrifuge specially applicable for puriflcation of paper pulp and similar material
IPC: B04B1/02
Filed: 1931-02-19
Abstract: 373,199. Centrifugal machines. REDDIE, L. N., 6, Bream's Buildings, London.- (Centrifugal Engineering & Patents Corporation ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) Feb. 19, 1931, No. 5313. [Class 23.] Density separators.-In a centrifuge particularly adapted for the purification of paper pulp and similar material, a number of concentric drums are used, each being fitted with annular parts projecting inwards to assist in building up cushions of deposited fibre. The machine shown in Fig. 1 has two drums 5, 6 with inwardly projecting rings 7, 8. At their upper ends the drums carry attachments 9, 10 with inturned flanges which form hollow annular cavities. Rings 11, 12 project into these cavities and leave narrow gaps for the discharge of the purified material. The raw material is led by the pipes 18, 19 to the lower parts of the drums; the heavy impurities including the fibre are thrown to the walls 5, 6 and are retained by the inwardly projecting rings. The light impurities are retained by the rings 11, 12 and the purified material is discharged over the attachments to the casing channel 13. The casing is supported by ball jointed links 15 from standards 16. In a modification the material is fed in through central annular channels. In a further modification the axis of the machine is horizontal and the shaft 32 carries a double star piece 33, Fig. 3 with a circumferential ring 34. Inner drums 35, 36 and outer drums 37, 38 are attached to this ring, and rings 39, 40 project outwards from the drums 35, 36 and rings 41, 42 project inwards. Wide flanges project inwards from the outer ends of all the drums. The material enters by the tubes 45, 46 and passes to the inner ends of the drums 35, 36 and then passes to the outer drums. The purified material is collected by tubes 47, 48 with detachable end-pieces. In another modification two drums with vertical axes are used, the material passing downwards in the inner drum and then upwards in the outer drum. In another modification the shaft is divided into two parts 61, 63 the former having a spigot 62 which fits into the latter. The upper part 61 carries the inner drum 5, and the lower part 63 carries the outer drum 6. The two shaft parts are driven by motors 65, 66. Only a small gap is left for the material to pass through in travelling from the inner to the outer drum.
Patent GB-525313-A (GB)
Title: Improvements in yarn winding machines
IPC: B65H54/54
Filed: 1939-02-17
Abstract: 525,313. Winding yarns. ABBOTT MACHINE CO. Feb. 17, 1939, No. 5333. Convention date, Feb. 28, 1938. [Class 120 (ii)] In a yarn winding machine of the type having a spindle for holding a rotary winding element, which spindle can be positioned either in a winding position or an inactive position, a portion of the spindle has a concave surface forming an external bearing for the rotary winding element which has a portion rotatably fitting and turning in frictional contact with the concave surface; unwindng of the yarn when the spindle is in the inactive position is thereby suppressed. As shown in Fig. 2 the stationary spindle 11, 11a, is mounted on the pivoted arm 12 and has a portion 22 which embraces a part 20 of the bobbin 18a forming an external bearing ; the other end of the bobbin has a portion 24a of reduced bore which forms an internal bearing on the spindle. In the form shown in Fig. 1 the stationary spindle 11, 11a has a loose sleeve 16 mounted thereon, one end of which is embraced by the annular projection 20 of the spindle element 11a to form an external bearing, a fibre washer 21 being interposed: the other end of the sleeve has a tubular inset 24 which forms an internal bearing on the spindle 11. T-shaped spring members 31 with central projections 32 serve to locate the bobbin 18. Specifications 459,357, 459,413, 459,414, 459,429 and 459,430 are referred to.
Patent GB-1373951-A (GB)
Title: Apparatus for applying liquid samples to a surface
IPC: G01N1/00
Filed: 1972-02-24
Abstract: 1373951 Applying liquids to substrate; thinlayer chromatography UNIVERSITY OF SURREY 24 Feb 1972 [25 Feb 1971] 5383/71 Headings B1H and B2I [Also in Division G1] Apparatus for applying droplets in discrete areas on a substrate 5 for subsequenet chromatographic analysis or for dispensing sera into the walls of immunological test-plates comprises a dispensing device 34 which is moved by a motor 14 by means of linkwork and gearing from a loading position P 1  where it takes up a predetermined quantity of liquid from vessels 50 received in channel 51 to a delivery position P 2  where it deposits the liquid on the substrate 5. The motor 14 drives a crank 21 which causes a lever 19 to pivot. A link 22 between the free end of lever 19 and a lever 2 causes the lever 2 to pivot about about an axis 25. A gear wheel 26 is fixed to the frame of the machine, a pinion 29 is freely rotatable on the lever 2 and a gear wheel 28 is rotatable on the lever 2 but is fixed to the dispensing device holder 27. As the lever 2 rotates the dispensing device maintains a vertical orientation. Alternative means are described for maintaining the dispensing device in a vertical position including chains and sprockets and different gear arrangements. The dispensing devices 34 may be in the form of closed or open loops of wire mounted in holders (32) in a bar 30 or may take the form of rods having a spiral member wound about them (Fig. 5 not shown). Alternatively the elements may be in the form of micropipettes 60 (Fig. 6) held in boxes in bar 30 by means of collars 64 bearing on springs 63. The micropipettes fill by capillary action and are discharged by air pressure applied by 61. The substrate may be moved in a direction perpendicular to the direction of motion of the arm 2 so that stripes are formed on the substrate.
Patent GB-963947-A (GB)
Title: Improvements in harmonic dampers
IPC: F16F7/108
Filed: 1962-02-13
Abstract: 963,947. Harmonic dampers. HUMBER Ltd., and J. A. CHANNER. April 25, 1963 [Feb. 13, 1962], No. 5446/62. Heading F2S. A harmonic damper for damping the unsprung weight of a wheel and its associated axle part comprises an arm 44 (see Fig. 4) pivotally attached at one end to the axle structure 42 by a resilient bush 46 which is bonded to both ports (42 and 44) and a weight 45 attached to the other end of the arm or intermediately. In an embodiment shown in Fig. 1, the weight 10 is on a divided arm structure which surrounds the axle 12 and is pivoted on a rubber bush 20 to a brake anchor plate on the axle 12. Rubber buffers 16 on each branch of the arm limit its up-and-down movement. Fig. 4 (not shown), illustrates an arrangement somewhat similar to Fig. 1 in which each branch of the arm is separately pivoted both to the weight and to the anchor plate. In all the constructions shown the weight lies at least partially within the wheel-rim. The arm may be constructed as a sandwich of two strips of spring steel with an interlay of rubber-bonded thereto.
Patent GB-1521890-A (GB)
Title: Supports
IPC: E01F9/012
Filed: 1975-10-30
Abstract: 1521890 Support for signs B WHITEHEAD 30 Oct 1975 [8 Feb 1975] 5447/75 Heading E1G A support for a sign, Fig. 1, comprises a base member in the form of a flexible vehicle tyre 10 and a support post 11 attached to the tyre such that when the tyre is placed on the ground it will support the part with it extending upwardly from the tyre. The post may be welded to a bracket 12 bolted to the tyre 10, or may engage a socket on the bracket, Fig. 8 (not shown). The post may comprise an A-frame of two members 21, Fig. 2, secured to the tyre side wall, or an inverted U form, Fig. 6. The post may be covered by reflective and/or fluorescent sleeving 53. Barrier members may be connected between spaced pairs of supports. Tyres may be joined in pairs by a member extending diametrically across the tyres, Fig. 8 (not shown), and ballast may be fitted within the casing to increase stability.
Patent GB-1155651-A (GB)
Title: Position Detecting Apparatus
Inventor: HARDISTY PHILIP RICHARD
IPC: G01D5/26
Filed: 1966-02-08
Abstract: 1,155,651. Determining position photoelectrically. M.E.L. EQUIPMENT CO. Ltd. Sept.9, 1966 [Feb. 8, 1966], No. 5468/66. Heading G1A. In an apparatus for determining the position of a detection mark 15 Fig. 2 on an object 6 moving relative to the apparatus along a pre-determined path, a beam of radiation 5 is directed so that during movement it becomes incident on the mark and two detectors are arranged to receive radiation reflected from the object, the detectors being associated with individual stop means 9, 19 each arranged to block radiation reflected from a different part of the irradiated area so that the detectors receive radiation from different parts of the area. The mark may be a hole and the beam visible light or infrared brought to the size of the hole by collimating means. Paint having a reflectivity less than that of the object may be used for marking.
Patent GB-908855-A (GB)
Title: Segmental rotary brush
IPC: A46B13/00
Filed: 1961-02-14
Abstract: 908,855. Rotary brushes. OSBORN MANUFACTURING CO. Feb. 14, 1961 [Oct. 20, 1960], No. 5471/61. Addition to 908,372. Class 19. In a rotary brush according to the parent Specification, the arcuate segments 25, 26 27 are provided with dovetails 28 and complementary dovetail grooves 29 extending along opposite longitudinal edges whereby the segments are interengaged to form a cylindrical assembly. As shown, an annular metal hub member 32 having slots 33, 34 to facilitate keying to a mandrel and provided with protuberances 35, 36, 37 adapted to fit in corresponding slots in the ends of the segments 25, 26, 27 may be fitted to each end of the assembly.
Patent GB-144371-A (GB)
Title: Improvements in means for controlling or regulating dynamo electric machines
IPC: H02K7/108
Filed: 1919-03-06
Abstract: 144,371. Wilson, F. E., Shepherd, W. A., and Powell & Hanmer. March 6, 1919. Regulation, automatic apparatus for.- The output of a dyna.- mo is controlled bv the torque on its shaft, which is used as a means for opening the field circuit. The driving-pulley a turns the dynamo shaft b through an adjustable spring, a pin-and-slot connexion allowing slight relative movement between the pulley and shaft. When the torque is excessive the spring is stretched and the two contacts c, d in the field circuit open. The immediate drop in output allows the spring to pull the armature forward, regulation being effected by rapid making and breaking of the circuit.
Patent GB-435912-A (GB)
Title: Improvements in or relating to office printing machines
IPC: B41L19/00
Filed: 1935-02-21
Abstract: 435,912. Printing-machines. ADREMA MASCHINENBAUGES., 20, Gotzkowskystrasse, Berlin. Feb. 21, 1935, No. 5652. Convention date, Feb. 27, 1934. [Class 100 (ii)] An office printing-machine of the kind in which the main matter is printed by a printing segment 3 cooperating with an impression cylinder 4 and in which an auxiliary printing-device A comprises several rotary printing or numbering devices for printing auxiliary texts or numbers is constructed so that each of the three auxiliary printing- devices b, c, d, Fig. 2, can be independently adjusted laterally of a common driving shaft 18, and in addition each of the devices b, c, d is mounted in frames 21 pivoted about a bolt 12 connecting the main frames 11 of the auxiliary devices and independently adjustable so as to regulate the printing pressure. The frames 11 are adjustable by means of screws 28 which pass through bolts 221 connecting the frames and screw into apertures in blocks 30 pivoted to tie-rods 13 which connects the end walls 11 of the main frame A of the auxiliary printing device. Springs 31 are arranged on the screws 28. Each auxiliary printing-cylinder is constructed of two end discs 24, 241, fitted to bushes 231 connected to the frame members 21 and formed with bores 23 which embrace the shaft 18 with sufficient clearance to permit of adjustment of the frame members as described. The discs 24, 24<1> are connected by a crossbridge-piece 25 which secures the cylindrical member 26 carrying the frame segment. The cylinder and the frames 21 are movable as a whole axially of the shaft 18, and are secured in position by a screw 34 which connects the piece 25 to the shaft 18. Rotary motion is transmitted from the shaft 18 to the cylinders by a universal joints or Oldham couplings comprising diametrical projections 37 on the cross-pieces 18 engaging slots 37 in freely mounted discs 36 formed with a second pair of diametrical slots 38 engaging projections 40 on the cylinder end discs 24. The cylinders can thus be adjusted independently relatively to the impression cylinder 4. The printing-surfaces 27 are inked by rollers 17.
Patent GB-917001-A (GB)
Title: Improvements in or relating to lubricating and hydraulic compositions
IPC: C07F9/02
Filed: 1960-02-17
Abstract: Lubricating and hydraulic compositions comprise a major proportion of one or more esters of aliphatic oligocarboxylic acids with alcohols containing from 4 to 12 carbon atoms, the ester groups being situated on different non-adjacent carbon atoms, plus a minor proportion of thickeners, viscosity-index improvers, antioxidants, corrosion inhibitors, high pressure additives and/or detergents; the oligocarboxylic acids are defined as those having from 4 to 10 carboxyl groups.  The esters may contain hetero-atoms such as nitrogen, sulphur or phosphorus, in either portion thereof.  Suitable esters are those of tetrameric, pentameric and hexameric methacrylic acid, the addition products of thioglycollic acid esters with esters of trimeric, tetrameric, pentameric or hexameric methacrylic acid, or addition products of hydrogen sulphide with two molecules of one or more of these methacrylic acid esters; examples are also given of the use of the reaction products of hydrogenated tetrameric methacrylic acid n-octyl ester with trimeric phosphorus nitrile dichloride, and with phosphorus pentasulphide.  Additives include as thickners and V.I. improvers, high polymers of acrylic and methacrylic acid esters; as antioxidants, phenothiazine and its derivatives, benzimidazole, pyrazole, indazole and benzotriazole; as corrosion inhibitors, dihydroxyimidazolidone or 4tert-butyl pyrocatechol; as high pressure additives, tricresyl phosphate or di-(o-chlorophenyl)-phenyl phosphate; and as detergents, C8-alkyl calcium phenolate or N-vinyl pyrrolidone- or N-vinyl pyridine-containing polymethacrylic acid esters.ALSO:Esters of oligomeric methacrylic acids having 4 to 10 carboxyl groups with alcohols having 4 to 12 carbon atoms are prepared by hydrogenation and alcoholysis of the oligomeric methyl ester: the oligomeric acids may be made by the process of German Specifications 855,554 and 903,932.  The esters may also be made by esterification of the free acids or oligomerisation of a C4 to C12 ester of monomeric methacrylic acid.  An addition product of thioglycollic acid and the trimer of methyl methacrylate is prepared by heating the reactants in the presence of dibenzoyl peroxide.  The product is subsequently esterified and/or alcoholysed with n-octanol in the presence of p-toluene sulphonic acid.  An addition product of 2 mols of the di-n-octyl ester of dimeric methacrylic acid and 1 mol of hydrogen sulphide is prepared by passing H2S through the ester in the presence of caustic soda.  An addition product of hydrogenated tetrameric methacrylic acid n-octyl ester and phosphorus pentasulphide is prepared by heating the reactants together.  An addition product of hydrogenated tetrameric methacrylic acid noctyl ester and trimeric phosphorus nitrile dichloride is prepared by heating the reactants together.  The products may be used in lubricating compositions.
Patent GB-473020-A (GB)
Title: Improvements in or relating to the stabilisation of friction elements
IPC: F16D69/02
Filed: 1936-02-26
Abstract: Lead and zinc sulphides are incorporated in friction elements for the purpose of stabilizing their friction characteristics under operating conditions.  A typical friction element composition consists of asbestos fibre, pyrobituminous material, e.g. coal, or Grahamite pitch, resin bond, solvent e.g. naphtha, and lead sulphide.  The resin bond may consist of phenolaldehyde, cumarone, alkyd, ketone, vinyl, urea, thiourea or sulphur-phenol resins.ALSO:Lead and zinc sulphides are incorporated in friction elements for the purpose of stabilizing their friction characteristics under operating conditions.  A typical friction element composition consists of asbestos fibre 50 parts by weight, pyrobituminous material, e.g. coal, or Grahamite pitch, 7,5 parts, resin bond 16 parts, solvent, e.g. naphtha, 3 parts, and lead sulphide 10 parts.  The resin bond may consist of phenol-aldehyde, cumarone, alkyd, ketone, vinyl, urea, thiourea or sulphurphenol resins.
Patent GB-912961-A (GB)
Title: Improvements in coating compositions containing synthetic rubbers
IPC: C08L81/00
Filed: 1961-02-17
Abstract: A sprayable coating composition comprises a synthetic rubber dissolved in a solvent system which comprises three liquids, one having a boiling point in the range of 100 DEG  to 175 DEG C. and being a solvent for the rubber, the second having a boiling point lower than the first and being in the range 50 DEG  to 150 DEG C. and being a non-solvent for the rubber, the mixture of the first and second liquids being a non-solvent for the rubber, and the third having a boiling point lower than that of the second and being in the range 35 DEG  to 95 DEG C., the mixture of the three liquids being a solvent for the rubber.  Specified rubbers are butadiene-styrene, butadiene-acrylonitrile, polychloroprene, chlorosulphonated polyethylene, and polysulphide rubbers.  A tackifying resin, e.g. an oil-soluble heat-advancing t-butyl phenol-formaldehyde resin may also be present.  Specified solvent ingredients are xylene, heptane, acetone, cyclohexanone, ethyl alcohol, hexane, monochlorobenzene, isopropyl alcohol, water, aliphatic hydrocarbons, toluene and methyl ethyl ketone.