baber/WOPTO huggingface dataset:
Patent GB-876444-A (GB)
Title: Improvements in or relating to bonded fibrous structures
IPC: D04H1/54
Filed: 1958-11-24
Abstract: 876,444. Agglutinated fibrous materials; laminates. FREUDENBERG KOMM.-GES. AUF. AKTIEN, CARL. Nov. 24, 1958 [Nov. 25, 1957], No. 37778/58. Class 140. A method of producing bonded unwoven fibre structures comprises treating fibres, at least a portion of which are water-soluble, e.g. 1% to 60% by weight, with an aqueous impregnating liquid so that the water-soluble fibres are partially dissolved, removing the excess liquid from the fibres, and drying the fibres at elevated temperatures, e.g. 90‹ C. to 175‹ C. Suitable fibres, which may be hollow or crimped, capable of being dissolved by aqueous liquids are fibres of unhardened polyvinyl alcohol or unhardened protein, alginate, methyl cellulose, polymethacrylic acid, carboxymethylcellulose, hydroxyethylcellulose, polyvinylethyl ether, and maleic anhydride copolymer. Impregnation may be carried out by dipping or padding. Suitable impregnating liquids are water and aqueous solutions, emulsions or dispersions. The impregnating liquids may contain film-forming bonding agents, e.g. natural or synthetic rubber or synthetic resin, whereby the bond between the fibres and the flexibility and elasticity of the finished web may be improved, or the liquid may contain a silicone oil. The fibre mixture may be converted into a bound web by passing the mixture, distributed on supporting means such as a wire mesh belt, through a padder filled with impregnating liquid, freeing the web from excess liquid by squeezing or vacuum means and subsequently drying the web under pressure, as by conducting it through a heated felt calender. The web may be rendered resistant to boiling water by employing an aqueous solution of formaldehyde as the impregnating liquid. Multiply structures may be formed by placing thin woven or knitted fabrics either upon or between webs of fibres (as above) and then impregnating the assembly and subsequently drying it under heat and pressure. Examples describe the treatment of webs comprising fibres of cotton and polyvinyl alcohol; rayon and polyvinyl alcohol; and polyester and polyvinyl alcohol: with water, or (to make the product resistant to boiling water), an aqueous solution of formaldehyde, sodium sulphate and hydrochloric acid or an aqueous solution of formaldehyde : and drying by means of a felting calender or rotary cloth press.
Patent GB-1515810-A (GB)
Title: Shoe and method of producing it
IPC: A43B13/12
Filed: 1976-09-13
Abstract: 1515810 Shoes F W SCHMITT [trading as ERICH ROHDE KG SCHUHFABRIKEN] 13 Sept 1976 [31 Jan 1976] 37882/76 Heading A3B [Also in Division B5] A shoe, e.g. a slipper, comprises an outsole 3 joined, e.g. by stitching 4, all around the shoe to an insole 2 and also to an upper 1, the outsole 3 and insole 2 defining a pocket 9 containing a middle sole layer 8 of plastics, e.g. foamed P.V.C., in which is embedded an insert, e.g. a heel piece 5, the plastics material being injected via an opening 7 in the outsole 3 whilst the lasted 12 upper 1, insole 2 and outsole 3 are positioned in a mould 10. The upper 1, insole 2 and outsole 3 are of leather and the heel-piece 5 of plastics-bound wood waste or wood dust. The heel piece 5 has the thickness, along at least part of its length, required of the middle sole layer 8, and has a bore 6 and longitudinal channel (11, Fig. 3, not shown) on its upper surface for improved flow on injection. The lasted shoe rests with the stitched edge 2', 3' on the mould 10 but not sealed thereby and is guided into position by adjustable strips 13 bolted 14 to the mould 10. Plastics material enters the pocket 9 from a duct 16 in the mould 10. The middle sole layer 8 may fill the entire pocket 9 or it may extend only around the periphery of sole leaving a central space.
Patent GB-621227-A (GB)
Title: Improvements in or relating to abrasive polishing and like discs
IPC: B24D9/08
Filed: 1946-12-24
Abstract: 621,227. Grinding and polishing; polishing discs. HOOP, H. DE. Dec. 24, 1946, No. 37911. Convention date, Jan. 28, 1944. [Classes 19 and 60] The face of a disc 1 is clothed with a sheet 2 of sandpaper, flannel etc.; the face of the disc has a conically bevelled portion 3 in which is provided, as e.g. by turning a groove 4 to receive the edge of the sheet; the face 5 of the marginal portion of the disc lies behind the front face of the sandpaper.
Patent GB-1048041-A (GB)
Title: Improvements in or relating to the disposal of waste pickle liquors
Inventor: SAMUEL JOHN OSWALD
IPC: C02F9/00
Filed: 1961-10-23
Abstract: Liquors containing up to 1% of H2SO4 and up to 1% FeSO4 are treated with finely divided CaCO3 in an amount at least sufficient to neutralize all the free acid present and to precipitate substantially all the iron as hydrated ferric oxide, the liquor being aerated during neutralization.  The finely divided CaCO3 may be precipitated CaCO3, powdered whiting, or ground chalk a substantial part, e.g. 90% or more, of which has a particle size below 25 microns.  The quantity employed may be that equivalent to the H2SO4 plus 1.5-2.0 times that equivalent to the FeSO4 and this may be supplemented by lime, Na2CO3 or powdered limestone. 90% or more of the total acidity may be neutralized by the CaCO3 the remainder being removed by an alkali-metal or alkaline earth metal hydroxide.  The process may occur at at least 20 DEG  C. and the precipitate may be flocculated by adding a starch/CaCl2 gel before or after precipitation.  Should the liquor contain oil this may be absorbed on the ferric oxide precipitate.
Patent GB-961724-A (GB)
Title: Improvements in and relating to transformer windings
Inventor: BROSZAT GOTTFRIED
IPC: H01F27/28
Filed: 1960-11-04
Abstract: 961,724. Transformers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Nov. 4, 1960, No. 37991/60. Heading H1T. In a transformer having concentric windings 3<SP>1</SP>, 4<SP>1</SP> on a core 1, all the layers are stepped in the same sense so that the layer length is greater nearer the core and the turn density at the ends (as shown by the dots) is less than in the centre of the winding. The turn density at the ends of the windings is graded so that the centres lie in a radial horizontal plane 5<SP>1</SP>, 6<SP>1</SP>. The winding may be of star-connected threephase type.
Patent GB-1484280-A (GB)
Title: System for recording and reproducing a colour television signal
IPC: G11B20/02
Filed: 1974-08-30
Abstract: 1484280 Colour television MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 30 Aug 1974 [7 Sept 1973] 38124/74 Heading H4F A PAL or NTSC colour television signal, recorded with the chrominance component converted to occupy a frequency band below the frequency modulated luminance component, is reproduced by a magnetic head 10 and separated into chrominance and luminance components by low-pass filter 13 and high-pass filter 12; the chrominance component, having a subcarrier frequency fs subject to frequency error #f, is converted at 16 to a subcarrier frequency fc + fs + #f where fc is the standard PAL or NTSC subcarrier frequency, and the colour bursts are separated at 18 and used to control, via a phase comparator 21, the frequency and phase of a variable frequency oscillator 20, which thus produces a signal at a frequency where n and m are integers and m is less than n, which is supplied to a frequency divider 25 which supplies a signal at frequency fs + #f to a frequency converter 19; frequency converter 19 also receives a signal at frequency fc from an oscillator 17 and supplies a signal at frequency fc + fs + #f to phase comparator 21 and to a frequency converter 22 to convert the chrominance component to a subcarrier frequency fc, free of timing errors. In an alternative embodiment (Fig. 4, not shown) burst signal separator 18 receives its input from the output frequency converter 22 and phase comparator 21 receives signals from the burst signal separator 18 and crystal oscillator 17. Either of the above embodiments may be modified (Figs. 5, 6, not shown) so that oscillator 20 provides a signal at a frequency where k is less than 1, frequency converter 19 receiving the output of frequency divider 25 at frequency kfs + #f and the output of a further oscillator (26) at frequency fc + (1-k)fs, to supply the signal at frequency fc + fs + #f.
Patent GB-871254-A (GB)
Title: Process for the manufacture of polyvinyl ester dispersions
IPC: C08F2/22
Filed: 1957-12-09
Abstract: Polyvinyl ester dispersions having polymer particles of diameter between 0,15 to 15 microns are prepared by polymerizing a vinyl ester of a saturated monocarboxylic acid or isopropenyl acetate in aqueous emulsion in the presence of 0,1%-15% of a water-soluble hydroxyalkylated cellulose and 0,01%-10% of an alkali metal salt of a monohydroxydiphenyl, the percentages being based on the weight of the dispersion.  An alkali metal salt of a mono- or poly-basic inorganic or organic acid may also be present in amount of 0,01%-10%, as well as a semi-ester of a saturated or unsaturated dicarboxylic acid in amount of 0,001%-10%. Specified vinyl esters are the acetate, propionate, butyrate, laurate, stearate and chloroacetate.  They may be copolymerized with other monomers such as esters of unsaturated dicarboxylic acids.  Suitable acid salts are those of phosphoric, boric, acetic, citric and adipic acids.  The semi-esters may be of succinic, maleic, itaconic and sebacic acids with aliphatic or aromatic alcohols.  Polymerization may be effected at -20 DEG -100 DEG C., or above if pressure is applied, generally at a pH of 4-8. Suitable catalysts are redox systems, and peroxy compounds.  The solid content of the dispersions is normally from 40%-70% and the preferred viscosities are from 10 to 100 poises but may be as high as 760 poises.  In the examples, vinyl acetate is polymerized alone and with a small amount of iso-octyl maleate, the cellulose derivative is hydroxyethyl cellulose and the phenolate is 2-, 3- or 4-phenyl-sodium phenolate.  Specification 466,173 is referred to.
Patent GB-1245335-A (GB)
Title: Electrostatic painting method and apparatus
IPC: B05B5/053
Filed: 1969-07-31
Abstract: 1,245,335. Spray - producers. GOURDINE SYSTEMS Inc. 31 July, 1969 [28 Oct., 1968], No. 38530/69. Heading B2F. A method of electrostatically painting an object involves subjecting the paint in the form of a stream of particles produced by a spray head, to a corona discharge acting against the stream from an emitter electrode located downstream of the spray head along the longitudinal axis of the stream to an attractor electrode located at or adjacent the spray head. A convention air-type spray gun 32, Fig. 2, with a spray head 36 and air horns 38 having inwardly directed openings 40, can be converted for electrostatic operation by mounting an emitter electrode 48 within a housing 42 and channel member 46, both of dielectric material as illustrated. The spray head is earthed. The radius of curvature of the bend 48c of the electrode is typically between 1/16 and 3/8 inch (from 30 to 60), the distance between the pointed tip of the emitter electrode and the spray head is between 1/4 and 1/2 inch, and the potential 8-12 kilovolts. Fig. 3 depicts a straight needle-like electrode 74 fitted to an airless-type spray gun 72.
Patent GB-864645-A (GB)
Title: Improvements in or relating to rotors of centrifugal fans, compressors, superchargers, pumps and the like, provided with a rotary diffuser
IPC: F04D29/44
Filed: 1957-12-11
Abstract: 864,645. Centrifugal fans, compressors, superchargers and pumps. Dec. 11, 1957 [Oct. 8, 1957], No. 38550/57. Class 110 (1). A bladed rotor for a centrifugal fan, compressor, supercharger pump or the like comprises a rotor having a rotary diffuser formed by an extension of the rotor to beyond the outer edges of the main blades of the rotor, auxiliary blades being provided at the periphery of the rotary diffuser. The front and back plates 8, 9 of a centrifugal impeller are extended at 6, 7 beyond the outer diameter of the impeller blades 10 to form a rotary diffuser. Aerofoil vanes 12, with straight or arcuate camber lines, and backwardly-directed relative to the direction of rotation of the impeller, are provided at the outer periphery of the diffuser, the angle of incidence being either positive or negative as required to produce the desired modification of the pressure-volume characteristic of the impeller. The product of the number of vanes 12 and their chordal length is also selected to produce the desired modification of the characteristic, the ratio of the product to the circumference of the diffuser preferably not exceeding 0.4. Preferably, to avoid slipstream interference, the number of the vanes 12 and that of the impeller blades 10 are prime numbers differing from each other. The blades 10 may be radial, as shown, or may be backwardly inclined at, say, 60 degrees to the circumferential direction. The vanes 12 are bowed as shown in Fig. 9 so that centrifugal force tends to straighten them and therefore to push the plates 6 and 7 further apart at their periphery. Since the centrifugal force on the plates 6 and 7 has the opposite effect of tending to pull the plates 6 and 7 together into less divergent positions, a condition of equilibrium is reached. The vanes 12 may be welded to the plates 6 and 7 or may be made of light alloy or plastics and inserted, as shown in Fig. 9, into slots 18. The slots 18 are closed by welded-on plates 19. The vanes 12 may be hollow and may be thicker at the centre than at the ends so as to form a less deformable beam, and may be bent at the ends to permit fixing by riveting. They may be of flat lamellar form.
Patent GB-815937-A (GB)
Title: Improvements relating to lock washers, and fastener units including such washers
Inventor: BEART ROBERT WOODWARD
IPC: F16B39/24
Filed: 1956-12-18
Abstract: 815,937. Locking screws &c. ILLINOIS TOOL WORKS. Dec. 18, 1956, No. 38572/56. Class 89(1) A sheet-metal split-ring lock-washer 26, Fig. 1, comprises a helical-body 28 with integral-prongs 30 extending radially outwards from a free-edge 32, Fig. 3, and twisted. The body is of substantially circular cross-section and extends axially on each side of the prongs. The washer is retained on a screw 12, against the head, by the last thread, the head having a groove 20 with an inclined outer-periphery 22. In use, the washer locks in three stages; viz.-first by flattening of the helix, second by axial-collapse of the body, and third by deflection of the prongs. In another arrangement, the body 28a, Fig. 6, is of S-shape in cross-section.
Patent GB-1442823-A (GB)
Title: Graphic arts and graphic media
IPC: B41M7/00
Filed: 1973-08-16
Abstract: 1442823 Printing PRATT & LAMBERT Inc 16 Aug 1973 [12 July 1973] 38683/73 Heading B6C [Also in Division C3] A raised or three-dimensional graphic pattern effect is produced on a substrate by selectively applying thereto a medium including a liquid vehicle capable of forming a polymeric film on the substrate, and, forming a disperse phase in said vehicle, from 1 to 45%, based on the weight of non-volatiles in said medium, of thermally expandable thermoplastic microspheres, drying the medium and simultaneously or subsequently heating the selectively coated substrate, to expand the microspheres. Examples are given in which (a) an ink formulation comprising butyl methacrylate resin, polyvinylidene chloride microspheres containing neopentane and a colorant is applied using patterned gravure rolls to aluminium foil, paper-backed aluminium foil, kraft paper, board stock, and polyvinyl chloride film and the printed substrates are heated; (b) a similar formulation, containing no colorant, is applied by silk-screening on to glass and heated to give an expanded design; (c) a formulation comprising ethylene-vinyl acetate copolymer emulsions, the said microspheres and titanium dioxide is (i) brushed on to paper in a random pattern, dried and further heated, (ii) sprayed on to aluminium through a stencil and dried, or (iii) printed on adhesive-backed white wallpaper stock using a gravure roll and heated; (d) a formulation comprising latex of hydroxyethyl methacrylate/2 - ethylhexyl acrylate/ methyl methacrylate copolymer, the said microspheres and titanium dioxide is printed on to fibreglass fabric using a patterned rotogravure roll, dried and heated and (e) a formulation as in (d) except that the latex is of ethylene/  hydroxyethyl acrylate copolymer, is printed as in (d) on to fabrics and weaves of cotton, cotton-polyester, rayon, polyester, polyacrylonitrile and polypropylene.
Patent GB-365748-A (GB)
Title: Improvements in or relating to electrical mercury cut-outs
IPC: H01H87/00
Filed: 1930-12-23
Abstract: 365,748. Mercury switches ; switchboards. WORSDALL, H., 52, Warwick Avenue, Bedford, HARVEY, J. C. and HARVEY, A., 126, Bishopsgate, London. Dec. 23, 1930, No. 38787. [Class 38 (v).] Mercury-thread cut-outs, in which the mercury thread 2 is heated by current flowing either through it or in a coil round it, have a reservoir 5 for the mercury beneath the thread and a plunger 10 co-operating with the reservoir to force the mercury back during resetting. The plunger 10 may also serve as an indicator by being forced upwards when the mercury thread breaks. The passage 4 containing the plunger may communicate with the passage above the thread by means of a channel 9 so that a closed path is formed for the mercury. Modifications are described in which a float valve is arranged above the mercury thread, Figs. 4, 5 and 6 (not shown), and in which means are provided to allow air to escape from one side to the other of the plunger when the plunger rises after resetting, thereby preventing the mercury thread rebreaking owing to a suction effect. The last means may comprise a hole passing through the plunger and co-operating with a valve on the plunger, Figs. 7 and 8 (not shown), or a widening of the passage in which the plunger moves and is specially applicable to constructions in which there is no closed path for the mercury. The resetting plunger 10 may be operated by a tumbler lever, Fig. 11 (not shown). In a construction suitable for 3-phase current three plungers are operated by one common knob, Figs. 12 and 13 (not shown). A number of cut-outs may also be arranged side by side in a box, Figs. 14 and 15 (not shown).
Patent GB-1221179-A (GB)
Title: Ripple control receivers
IPC: H02J13/00
Filed: 1969-08-04
Abstract: 1,221,179. Ripple control receivers. LANDIS & GYR A.G. 4 Aug., 1969 [20 Aug., 1968], No. 38899/69. Heading H4R. Ripple control receiver has a two stage filter 1 tuned to the ripple frequency feeding a transistor 15 which is normally non-conducting but is turned on to operate relay 19 when the ripple control signal exceeds a predetermined magnitude. The temperature coefficient of transmission of the filter 1 is arranged to compensate for the temperature coefficient of the response threshold of the transistor 15. In addition the filter inductors are enclosed in a compartment 31 heated by the power dissipation in resistor 28, feeding power to the transistor, so that the ferrite cores of the inductors are moved out of the region of high temperature dependence of permeability, while still leaving them subject to fluctuations of temperature with ambient changes.
Patent GB-1021168-A (GB)
Title: Method for the automatic control of the positioning of a plurality of movable members and apparatus to carry out the method
IPC: G05B19/35
Filed: 1964-09-24
Abstract: 1,021,168. Programmed control of machine tools. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Sept. 24, 1964 [Oct. 2, 1963], No. 39026/64. Addition to 951,355. Heading G3N. A programmed control system for a precision machine tool as disclosed in the parent Specification is modified so that digital information carried by the punched tape is able to influence the state of the switching device which controls the engagement of the different ratios of the gear-box determining the traverse speed of the table so that the last slowing down speed can be omitted.
Patent GB-905856-A (GB)
Title: Improvements in or relating to high speed type printing apparatus
IPC: B41J2/27
Filed: 1959-11-18
Abstract: 905,856. Typewriters &c. HANDLEY, J.  Nov. 11, 1960 [Nov. 18, 1959], No. 39049/59. Class 100 (4). A printer in which characters are produced by one or a combination of impression members has wires 1 actuated to effect impression on a form 34 by latching members 4 which are moved by a latch-plate 7 after selection. Appropriate selector cables 12 are moved to select one or more wires for the desired character for printing and thus displace the corresponding latch or latches 4 against the action of its spring 14 so that on movement of the plate 7 by its cam a stepped surface 31 engages the ends 10 to move the latch or latches 4 and wire or wires 1 against springs 6 to effect impression. After impression cables 12 are withdrawn, allowing the springs 14 to disengage the ends 10 from the steps 31 while springs 6, 19, 20 restore the wires 1 and latch-plate 7, respectively. Specification 808,703 is referred to.
Patent GB-1159956-A (GB)
Title: Structural Building Unit
Inventor: HILL DONALD THOMAS
IPC: E04C3/07
Filed: 1965-09-14
Abstract: 1,159,956. Composite beams. D. T. HILL 10 Aug., 1966 [14 Sept., 1965], No. 39149/65. Heading E1K.  A beam comprises a hollow elongated member, rolled from sheet metal, having two open channels containing filling material 22, 32 for the reception of conventional fixing means. The member is preferably constructed from two top-hat sections welded or fold seamed together at the flange edges 16 and having rectangular or dove-tail channels 22, 32 containing wood or plastics projecting slightly above the level of the metal faces at 17, 18 and 27, 28.
Patent GB-1509750-A (GB)
Title: Disazo pigments and a process for their manufacture
IPC: C08L21/00
Filed: 1975-09-25
Abstract: 1509750 Disazo pigments CIBA-GEIGY AG 25 Sept 1975 [26 Sept 1974] 39366/75 Heading C4P Novel disazo pigments have the formula where A is a direct bond or an aliphatic, cycloaliphatic; aromatic, azoaromatic or heterocyclic radical; B is an optionally substituted arylene radical; R, is H, C 1-4  alkyl optionally substituted by phenyl, or aryl; R 2  is H, C 1-4  alkyl, CN, carbamoyl, C 2-6  mono- or di-alkylcarbamoyl or alkoxycarbonyl, or a phenyl, benzoyl or phenylcarbamoyl group optionally substituted in the phenyl radical by hal or C 1-4  alkyl or alkoxy; R 3  is H, C 1-4  alkyl, C 5-6  cycloalkyl, CN, OH, carbamoyl, C 2-6  mono- or di-alkylcarbamoyl or alkoxycarbonyl, or a phenyl or phenylcarbamoyl group optionally substituted by hal or C 1-4  alkyl or alkoxy; Z is O, or an N atom which together with R 1  forms a fused benzimidazole ring. The pigments are prepared by tetraazotizing a diamine of formula and coupling with the appropriate pyridine compound. Alternatively they may be prepared by condensing the dihalide of a dicarboxylic acid of formula with 2 mols. of the appropriate amine. The pigments are used for colouring high molecular weight organic materials which may be in the form of melts, spinning solutions, lacquers, paints or printing inks.
Patent GB-340770-A (GB)
Title: A new or improved process for rendering the cement interior surfaces of refrigerating chambers or cold stores nonporous
IPC: C04B41/70
Filed: 1929-12-24
Abstract: The cement interior surfaces of walls of refrigerating chambers or cold stores are rendered non-porous and smooth by applying thereto a solution of shellac in alcohol or methylated spirit, allowing the solution to remain for a period to penetrate the cement, removing any excess by means of spirit, and then rubbing down with abrasive material.  The surface is then treated with a wax or shellac solution and polished.