baber/WOPTO huggingface dataset:
Patent GB-923897-A (GB)
Title: Improvements in or relating to the bleaching of cellulosic fibres
Inventor: CHESNER LOUIS
IPC: D06L4/12
Filed: 1959-08-28
Abstract: Copper-contaminated cellulosic fibres, i.e. natural cellulose fibres, e.g. cotton, regenerated cellulose and cellulose derivatives, which may be scoured or unscoured, alone or in admixture with other natural fibres, e.g. wool, and/or synthetic fibres, e.g. nylon, which may also be scoured or unscoured, are bleached by contacting them with an alkaline aqueous hydrogen peroxide bleaching solution containing a water-soluble or water-solubilized protein or polypeptide and a silicate of an alkali metal.  Suitable water-soluble or water-solubilized proteins and polypeptides which are preferably used in a concentration of 1-4 gm./litre, are glue, gelatin, egg albumen, solubilized keratin obtained, for example, from animal hooves, feathers or waste wool dissolved with caustic soda or peracetic acid, globular proteins, e.g. the dried blood of animals, collagen and gluten from wheat flour.  The solution may also contain a water-soluble salt of an alkaline-earth metal or of magnesium. The concentration of the hydrogen peroxide is preferably 1-15 vol. and the ratio of bleach solution:goods is preferably 1:1 to 30:1. The concentration of silicon dioxide in the solution is preferably 0,5-5,0 gm./litre and the ratio alkali-metal oxide:silicon dioxide in the range 0,5:1 to 5,0:1.  Prior to bleaching the fibres may be treated with an aqueous solution of a per-acid, e.g. Caro's acid, at a temperature up to 80 DEG C., scoured at an elevated temperature for several hours in an alkaline solution, treated with a steeping agent consisting of a dilute solution of a mineral acid, e.g. sulphuric acid, are treated as described in Specification 923,896.
Patent GB-672213-A (GB)
Title: Improvements relating to toothed wheels and drums and in the manufacture thereof
IPC: F16H55/10
Filed: 1948-11-13
Abstract: 672,213. Making toothed gears. WEBB & CO., Ltd., H. C., and TAYLOR, F. W. Nov. 14, 1949 [Nov. 13, 1948], No. 29535/48. Class 83 (ii). A toothed wheel or drum comprises a pressed metal disc 14 with an integral cylindrical flange 15 to form the rim, and a ring of hollow teeth 18 welded at the roots thereof to the rim. The strip 18 may be pressed in a single operation to produce teeth of the approximate shape shown in Fig. 4, or in more than one operation in which waves 20, Fig. 3, represent a first stage. In order to ensure that the strip 18 is accurately located in the press producing the teeth shown in Fig. 4, a pressure-loaded holding-device is provided which is shaped to fit the waves 20 and permit the strip to be fed through the press in successive steps each equal to twelve teeth so that any additional metal taken up during the pressing operation is drawn from the unformed end of the strip. Every fourth or fifth tooth may be provided, by a separate operation, with projections 21 which, after the strip has been formed about a mandrel corresponding to the size of the rim and the teeth finally pressed to shape on the mandrel, are welded to the rim. A toothed strip 18 may be provided on both the inside and outside of the rim 15 by using a jig to align the teeth and permit the strips to be welded simultaneously to the rim. The latter may be secured to a hub 10 carrying roller bearings 11 by bolts 16 which engage in lugs or a flange 13 on the hub. The disc 14 may be dished or strengthened by integral hollow ribs, and have strips of metal welded on the edges of the teeth to provide strands thereon. Specifications 4520/04, [Class 83], and 672,214 are referred to.
Patent GB-945943-A (GB)
Title: Improvements of and relating to vortex separators
IPC: B01D9/00
Filed: 1960-08-26
Abstract: 945,943. Centrifugal separators. J. M. VOITH G.m.b.H. Aug. 26, 1960 [Sept. 11, 1959], 29561/60. Heading B2P. An apparatus for removal of impurities from suspensions and comprising a vortex separator 1 discharging impurities into a chamber 6, water supplied by a pipe 12 is periodically cut-off for short periods whilst the inlet 8a and outlet 47 of the chamber are open. The inlet is always open, and the pipe and outlet have valves 13, 7 controlled by a timer 14 so that one valve is closed whilst the other is open. In the modifications shown in Fig. 2, the bulk of the water entering the chamber 31 through the pipe 23 is discharged with impurities through a valve 22 and the rest of the water passes through tube 17 to the separator. During periods in which a valve 24 is open coarse impurities and water discharge through the valve 22 into a settling tank 25, clean water discharging over a weir 26 being returned to the chamber. During periods the valve 24 is closed the valve 22 directs fine impurities to discharge through a conduit 30. The whole or parts of the tubes 8, 17 may be transparent. In a modification (Fig. 3, not shown) finer impurities are continuously discharged through an outlet in the top of the chamber, and coarser particles are periodically discharged from the bottom of the chamber. Vortex chambers in series may be arranged to discharge impurities into a common chamber.
Patent GB-956203-A (GB)
Title: Spheroidal graphite cast iron
IPC: C22C37/04
Filed: 1962-08-01
Abstract: Iron having in the as-cast condition a substantially pearlitic structure (not more than 5% of ferrite) is free or substantially free from carbide-stabilizin elements other than any used to induce the formation of spheroidal graphite and contains 2-3% by weight of nickel.  The nickel may be wholly or partially replaced by copper and/or tin in such amounts that Ni+2.5 Cu+66.7 Sn\sF2 Ni+1.5 Cu+30 Sn\sE3. Permissible maxima for carbide-forming elements are .Cr.0.05% .V.0.05% .W.0.01% .Mo.0.01% .Mn.0.1%
Patent GB-256834-A (GB)
Title: Improvements in or relating to runners for curtain rails
IPC: A47H15/02
Filed: 1925-11-24
Abstract: 256,834. French, G. F. Nov. 24, 1925. Curtains, Suspending.-A curtain runner is formed by bending a thin sheet-metal blank to form a U-shaped frame b, the blank being longitudinally corrugated for the whole or part of its length and the ends fashioned to form tubular or part-tubular axles c for rollers a. The lower part of the frame b forms a rounded surface upon which the loop d,.to which the curtain is attached, can swivel. Parts of the frame b may be wider than the roller or narrower and provided with rubber, fibre or metal flanges to form buffers. The frame b, when wider than the rollers, has its vertical sides bent over to form broad edges. The frame may be provided with a struck out tongue e to receive the curtain ring or operating cord. For the master runner a fitting comprising a sleeve in which the operating cord is gripped by a screw is provided with means, such as a hook, by which it secured to the frame b. The axles c may be inclined as shown in Fig. 8.
Patent GB-330848-A (GB)
Title: Improvements in and relating to superheaters heated by superheated steam
IPC: F22G1/00
Filed: 1929-10-01
Abstract: 330,848. Schmidt'sche Heissdampf- Ges. Nov. 3, 1928, [Convention date]. Superheating by steam.-In a superheater or interstage heater comprising a casing 12 containing heating coils supplied with superheated steam which gives up its superheat in the first part 20 of the coils and its heat of evaporation in the second part, the steam to be heated is conducted by baffles 15 at a high velocity along an extended path with one or more changes of direction around the second part of the coils, and then in counter current flow to the heating steam in the first part of the coils. A closed metal cylinder 31 is placed at the centre of the coils, which are connected to an inlet chamber 24 to two outlet chambers 29, 30.
Patent GB-177196-A (GB)
Title: An improved fluid pressure engine
IPC: F01B17/02
Filed: 1921-07-19
Abstract: 177,196. Sayers, W. G. July 19, 1921. Engines with main shaft parallel to axis of cylinder; driving-gear.- In a steam, air, or internal-oombustion engine of the type in which the common piston-rod of two tandem cylinders carries a pin engaging a cam-groove in a drum or disc, the piston-rod E is arranged to drive botn a drum on a shaft K and a fly-wheel J. The drum and fly-wheel are placed on opposite sides of the rod, and a pin D carried by the piston enters a cam-groove F in the drum and a circular groove H in the fly-wheel. The groove H passes through the centre of the flywheel and has a diameter equal to half the stroke.
Patent GB-466466-A (GB)
Title: Improvements in or relating to sliding doors
IPC: E06B3/46
Filed: 1936-11-02
Abstract: 466,466. Sliding doors. POSCHUNG, W. Nov. 2, 1936, No. 29761. [Class 20 (iii)] One of two half-sections of a sliding door, 1, is movable on upper and lower guide-rails 3, 2, extending across the opening, while the second 1a is supported on pivoted arms 10, 11, attached to the guides 8, 9, and is thereby adapted to lie in the plane of the other section when closed and to be displaced transversely to the plane of the door to permit opening &c. The arms 10, 11 are spring-controlled to force the section 1a into the plane of the other, rollers 16, 17 being provided which engage frame parts 18, 19 when shut and rails 14, 15 on the section 1 during opening. The ends of the rails 14, 15 are bevelled to cause the transverse displacement of the section 1a during initial opening. The levers 10, 11 may have a common pivot rod to equalize their movement.
Patent GB-408350-A (GB)
Title: An improved slot cutting machine
IPC: B23C3/30
Filed: 1932-10-25
Abstract: 408,350. Milling and drilling machines. ASQUITH, Ltd., W., Highroad Well Works, and FEATHER, G., Wellsby House, Highroad Well, Halifax, Yorkshire. Oct. 25, 1932, No. 29799. [Class 83 (iii).] In a machine for cutting slots completely through rods, bars &c. the rod G is mounted on a table A traversable on guides a between opposed headstocks C, D. The latter carries a drilling spindle d fed axially by a hand wheel d and the former a milling spindle c fed axially by a hand wheel c<1>. In operation, a hole of approximately the same diameter as the width of the slot is drilled completely through the work, after which the milling-cutter, preferably of the spiral type, is passed through the hole and supported by its free end in a bushing in a plate F and the worktable is then traversed to cut the slot in one stroke. The plate F is indexable by means of a spring bolt f to bring into position a bushing f of a size appropriate to the milling cutter being used. The opposed drilling and milling spindles may be placed in a vertical, horizontal or inclined position.
Patent GB-1048005-A (GB)
Title: Improvements in the production of circular knit patterned plush fabrics
IPC: D04B1/02
Filed: 1962-08-03
Abstract: 1,048,005. Knitting. VICTORIA MANUFACTURING CO. (HOSIERY) Ltd. and J. PEGG. Aug. 2, 1963 [Aug. 3, 1962], No. 29837/62. Headings D1C and D1K. Colour or relief, patterned plush fabric is produced on a multifeed circular latch needle knitting machine in which the sinkers 4 are controlled by rotary pattern control devices 5 driven in synchronism with the sinkers which have butts at the same levels as the pattern bits 10 on the control devices there being at least as many butt levels on the sinkers as there are pattern bit levels on the control devices. As shown, yarn from an overhead yarn guide structure is fed from thirtytwo feeders 3. The sinkers all have a low comparatively wide butt 4a, Fig. 5 (not shown) and pattern butts at selected levels a to g. Each device 5 comprises a spindle 7 with a toothed driving wheel 8 engaging and driven by butts 4<SP>a</SP> and a number of pattern wheels or discs 9 carrying the pattern bits 10 at the same levels a to g as selected.
Patent GB-1393829-A (GB)
Title: Electrical capacitors
IPC: H01G13/00
Filed: 1973-06-22
Abstract: 1393829 Capacitors SIEMENS AG 22 June 1973 [27 Sept 1972] 29863/73 Heading H1M A flat stacked capacitor comprising at least two offset metal coatings 2, 4 having synthetic resin dielectric material 3 between them and outer covering foils 1, 5 has leads attached to it by pressing heated wires 6, 18 into the margins where the electrodes do not overlap to form an alloy bond with the electrode material. Preferably at least one covering foil is sufficiently thick to provide the desired robustness of the capacitor. At least one metal coating, as shown 4, is regenerably thin with the non-capacitively active portion thickened. An air gap existing between such coating and the covering foil may aid regenerability by providing oxygen (Fig. 5, not shown). The stack may include floating electrode layers. In constructing the device, the dielectric layer or layers coated with metal by vapour deposition may be placed between the cover foils, or metal and dielectric layers may be coated in sequence on to one of the cover foils. The lead wires, e.g. of tinned Cu, Ag, Ni or bronze, or tin or aluminium bronze, may be straight or deformed, with or without change in cross-section, e.g. they may be indented to provide a wavy profile (Fig. 7, not shown) or have bends parallel or, better, perpendicular to the plane of the coatings, or may be spiral. Preferably in order to limit the penetration of the heated wire the material of the cover foils is chosen so that the top cover presents less resistance to the passage of a heated wire than the bottom one, e.g. they may be polyethylene terephthalate and polysulphone respectively. To the same end the bottom cover may be cooled by plate 14 (Fig. 6), or the wires may be provided with attachments providing stops (Fig. 7, not shown). The assembly may be made watertight by welding the edges of the dielectric and cover layers ultrasonically. As shown in Fig. 6, lead wire 6 is heated electrically by electrodes 12, rams 11 of insulating material forming bends in the heated wire as it is pressed into capacitor assembly 13. Lead wires may be fused in before or after severing longitudinally and/or transversely a composite strip which is a multiple of the length and/or width of the desired capacitor. As shown in Fig. 10, a cover foil supporting the assembly of dielectric and electrode layers and lead wires 6 are moved towards each other and top cover foil 5 moved at right angles under electrodes 30. After fusing in of the leads the capacitor with its leads is severed, or, alternatively cover foil 5 may merely be perforated so as to provide a string of capacitors from which individual ones may be torn. A further strip of synthetic resin material may cover the wires and therefore be fused to the assembly (Fig. 11, not shown). After the fusing- in step, the capacitor may be charged to a high voltage and discharged via a circuit of low resistance and inductance whereby local melts are formed without damaging the capacitor.
Patent GB-938629-A (GB)
Title: Purification of 4-isopropylaminodiphenylamine
Inventor: BEVAN MORFYDD ANN
Filed: 1961-08-18
Abstract: 4-isopropylaminodiphenylamine is purified by heating it with sulphur or a sulphur-bearing substance at a temperature between 20 DEG C. and 250 DEG C.  The expression "sulphur-bearing substance" is defined as a substance which contains loosely bound sulphur which is readily liberated, e.g. by heat, or abstracted by the impurities in the 4-isopropylaminodiphenylamine.  Sulphur-bearing substances mentioned are sulphides and disulphides, e.g. tetramethylthiuram monosulphide and disulphide, polysulphides, e.g. thiuram tetrasulphide, thioureas, isothiocyanates, sulphenamides and mercaptans.  The process may be carried out by heating the mixture of sulphur or sulphur-bearing substance and 4-isopropylaminodiphenylamine to a temperature above its melting point, or by adding sulphur or a sulphur-bearing substance to stirred molten 4-isopropylaminodiphenylamine, or by heating a solution of the sulphur or sulphur-bearing substance and 4-isopropylaminodiphenylamine in a solvent, e.g. acetone.  In examples elemental sulphur, tetramethylthiuramdisulphide, bis(dinonylthiophosphoryl)tetrasulphide, bis(diethylthiophosphoryl)tetrasulphide, dipentamethylenethiuramtetrasulphide and bis(diisopropylthiophosphoryl)disulphide are used as purifying agents.
Patent GB-873317-A (GB)
Title: Improvements in or relating to spray oil compositions
IPC: B27K3/48
Filed: 1958-09-18
Abstract: A spray oil composition useful in controlling fungus disease on vegetation (particularly Sigatoka disease on banana plants) consists essentially of a substantially non-aqueous mineral oil containing not more than 15% by weight of aromatics and not more than 2% by weight of olefines and having a viscosity of between 65 and 88 S.S.U. at 100 DEG  F., and a specific gravity of between 0.849 and 0.879, the major proportion of which boils between 300 DEG  and 500 DEG  F. at 10 mm. of mercury.  Optional additives include oxidation inhibitors, oil-thickeners, plant hormones, light absorbers and additional fungicides but the spray oil is stated to be ineffective in emulsion form.
Patent GB-1495359-A (GB)
Title: Silver halide photographic light-sensitive materials
IPC: C09B23/00
Filed: 1975-07-16
Abstract: 1495359 Dye-containing photographic layers FUJI PHOTO FILM CO Ltd 16 July 1975 [17 July 1974] 29911/75 Heading G2C [Also in Division C4] A light-sensitive photographic material contains in at least one layer of a hydrophilic colloid at least one water-soluble dye of the Formula I wherein R<SP>1</SP> represents an alkyl, carboxy, alkoxycarbonyl, carbamoyl, alkylcarbamoyl, sulphamoyl, alkylsulphamoyl, acyl, hydroxy, alkoxy, alkylthio, amino, ureido, alkylureido, thioureido or alkylthioureido group; Q represents a sulphoalkyl, sulphoalkoxy alkyl or sulphoalkyl-thioalkyl group; L represents an optionally substituted methine group; n is 0 or 1; R<SP>2</SP> represents a group of the Formula-OR<SP>5</SP> or-NR<SP>6</SP>R<SP>7</SP> wherein R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> each represents a hydrogen atom or an optionally substituted alkyl group; R<SP>3</SP> represents a hydroxy, alkoxy, or alkyl group; and R<SP>4</SP> represents a hydrogen atom or an alkyl, alkoxy, sulphoalkoxy, alkylamino or dialkylamino group; the sulpho and carboxy groups being in the form of the free-acid or a salt thereof. The preparation of the dyes is described.
Patent GB-895031-A (GB)
Title: Automatically engaging and disengaging overrunning clutch
IPC: F16D41/22
Filed: 1960-08-30
Abstract: 895,031. Ratchet clutches. BENDIX CORPORATION. Aug. 30, 1960 [Sept. 30, 1959], No. 29933/60. Class 80 (2). A one-way clutch comprises " sawtooth " driving and driven members 2, 6 which are engaged during drive by a pin 8 carried by the driven shaft 5 and engaging helical slots 9, 11 in member 6, the members 2, 6 being separated by centrifugal weights 18 when driven member 6 overruns at a predetermined speed, but connected frictionally at lower speeds. As shown, the weights 18 are engaged with driven member 6 by a circumferential spring 23, and are provided with tapered projections 22 for engagement with the radially-projecting end 27 of a spring 25 frictionally engaging driving member 2. Thus, if member 6 tends to overrun pin 8 acting in slots 9, 11 disengages the clutch, but members 2, 6 are still frictionally engaged by springs 23, 25 and weights 18. If member 6 overruns at the predetermined speed weights 18 move outwards against spring 23 and the end 27 of spring 25 is disengaged from projections 22, so that members 2, 6 are completely disengaged from each other. When overrunning ceases the clutch is automatically re-engaged by the action of springs 23, 25 and pin 8 in slots 9, 11.
Patent GB-340601-A (GB)
Title: Improvements in dies for use in the manufacture of tiles for walls, fireplaces and the like
IPC: B28B7/20
Filed: 1929-10-03
Abstract: 340,601. Dies for undercutting tiles. ASHWORTH, J. H. and WOODS TILERIES (HANLEY), Ltd., Nile Works, Derby Street, Hanley, Stoke-on-Trent. Oct. 3, 1929, No. 29951. [Class 87 (ii).l Undercut locking recesses in the backs of tiles for fireplaces, walls &c. are made by slides b having tapered, bevelled plates b<2> and mounted in one of the die-parts x. The slides are retained by a screw d engaging a groove in the slide, and springs c urge the slides constantly outwards. The side walls of the die-box w automatically close the slides on the die-part x being moved into the die-box.
Patent GB-602140-A (GB)
Title: Process for producing silicon and electrical translating elements made therefrom
IPC: H01L23/02
Filed: 1945-11-09
Abstract: A silicon alloy, particularly for use in a crystal detector, is formed by adding from .003 to .01 per cent of boron to silicon of a purity in excess of 99.8 per cent.  This results in a considerable reduction in the specific resistance and an improvement in the rectifying properties.  In making the alloy, an ingot of the pure silicon is prepared and its specific resistance is measured.  The proportion of boron to be added to give a desired resistance is then calculated.  A master alloy is then prepared comprising 1 per cent of boron, and the final alloy is prepared by mixing the correct proportion of the master alloy with the pure silicon.  From the ingot thin slabs are cut to form detector units.
Patent GB-695036-A (GB)
Title: Manufacture of new polyalkylene glycol ethers
IPC: C07D213/20
Filed: 1950-12-07
Abstract: The invention comprises polyalkylene glycol ethers of monohydroxy derivatives of isocyclic 6-members compounds containing a m-pentadecyl group, such ethers containing at least two a  : b -alkyleneoxy residues.  The ethers may be derived from m-pentadecylphenol (or its halogen derivatives) or m-pentadecylcyclohexanol by reacting them with a  : b -alkylene oxides such as ethylene oxide, propylene oxide, glycide or epichlorhydrin; the reaction is preferably carried out in the presence of an acid or alkaline catalyst.  The products may be rendered water-soluble by converting the terminal hydroxyl group into its sulphuric ester or by introducing a quaternary ammonium group, e.g. by esterifying with a halocarboxylic acid and treating the product with a tertiary base.  The products are washing agents and textile assistants (see Group IV (c)).  They preferably contain 12-20 (e.g. 15) alkyleneoxy residues.  In the examples: (1) m-pentadecylphenol is reacted with ethylene oxide in the presence of sodium; (2) the product of (1) is esterified with chloracetic acid and then treated with pyridine; (3) m-pentadecyl-phenol is reacted with propylene oxide in the presence of sodium and the product is treated with chlorosulphonic acid to give the sulphuric ester.ALSO:Washing agents for animal fibres or textile materials comprise (1) polyalkylene glycol ethers of monohydroxy derivatives of isocyclic 6-membered compounds containing a m-pentadecyl group, such ethers containing at least two a  : b -alkyleneoxy residues; (2) derivatives of (1) in which the terminal hydroxyl group is esterified with sulphuric acid; or (3) derivatives of (1) in which the terminal hydroxyl group is esterified with an acid containing a quaternary ammonium group.  They may be used as washing, emulsifying, levelling or wetting agents, if desired, in conjuction with other textile assistants, and may be applied in neutral or acid aqueous solution. Preferred products have 12-20 alkyleneoxy residues.  Examples are given of the washing of wool with the pentadecaglycol ether of m-pentadecylphenol, with and without sulphuric acid.  Other specified products are the corresponding ether with 20 alkyleneoxy residues, the diglycol ether esterified with a quaternary pyridinoacetic acid group and a polypropylene glycol ether of m-pentadecylphenol esterified with sulphuric acid (sodium salt).