baber/WOPTO huggingface dataset:
Patent GB-751265-A (GB)
Title: Improvements in heat-stabilized polychlorotrifluoroethylene
IPC: C08K3/28
Filed: 1954-04-08
Abstract: Polychlorotrifluoroethylene is stabilized by incorporating therein before, during, or subsequent to polymerization 0.005 to 2.5 parts by weight of a salt or mixture of salts of an oxyacid of nitrogen to 100 parts by weight of the resin.  The stabilizer is preferably included in the resin by milling or by dissolving the stabilizer in a solvent such as a mixture of isopropanol and water and then mixing the solution with the powdered resin and removing the solvent. Stabilizers mentioned are nitrates of aluminium, ammonium, barium, bismuth, cadmium, calcium, lead, magnesium, mercuric, methylurea, potassium, sodium, strontium, zinc and zirconium, mixtures of potassium nitrate and nitrite, and nitrogen oxyacid salts of lithium, caesium, silver, gold, titanium, tin, vanadium, and antimony.  The compositions may be extruded, e.g. into rods, or moulded, e.g. into discs.
Patent GB-217379-A (GB)
Title: Improvements in pneumatic tyres for vehicles
IPC: B60C5/08
Filed: 1923-04-17
Abstract: 217,379. St. Helens Cable & Rubber Co., Ltd., and Harrison, H. C. April 17, 1923. Air tubes.-To limit the extension of tyre tubes, a layer of homogeneous resilient material, of lesser extensibility than the rubber of the tube, is embodied as an insertion or on either surface. In the form shown, a tube 2 with an eccentric air-space has an insertion 4 of tough rubber.
Patent GB-414470-A (GB)
Title: Basket for centrifugal machine
IPC: B04B7/18
Filed: 1933-04-07
Abstract: 414,470. Centrifugal machines. WILLIAMSON, R., 334, Albert Drive, Pollokshields, Glasgow. April 7, 1933, No. 10414. [Class 23.] A basket for a centrifugal machine is composed of a series of superposed coaxial rings 1 affording a number of fine slits 2 between them for the passage of liquid. The rings are of metal and are held together by a number of welds 4 spaced circumferentially round the basket. The internal surface 3 is smooth and spacers may be inserted between the rings if desired.
Patent GB-579191-A (GB)
Title: Improvements in processes and devices for welding glass to metal and articles obtained thereby
IPC: C03C27/04
Filed: 1941-08-16
Abstract: 579,191. Handles ; bottles. LONG, B. Aug. 16, 1941, Nos. 10455, 10456 and 10457. Convention dates, Aug. 21, 1940, Feb. 13, 1941, and June 28, 1941. [Classes 66 and 125 (i)] [Also in Groups II, XI, XXII, XXIII and XXXVI] Metal is united to glass by an intermediate layer of material which becomes integrated with both the metal and the glass and is elastic enough to prevent separation by tearing, the layer consisting of a superficially oxidized metal, such as aluminium or copper, deposited in a granular state on the metal such as by atomizing the coating metal, by rubbing the cleaned metal surface with the coating metal or, in the case of wire, passing the wire through a draw-plate lined with the coating metal. The coating and base metals may be heated as by a gas burner which may promote the oxidation of the coating metal. The glass is adhered either by pressure or by melting the glass in a reducing atmosphere and pressing it within a mould containing the coated metal parts. For preserve containers, the glass body 22 is moulded with metal rings or annuli 24 having coated parts or flanges 25 within or outside the glass, the metal parts being then soldered to metal covers 23 or glass covers with similar metal rings attached. Metal handles may be similarly secured to cups, glasses or kitchen and table utensils.
Patent GB-1356771-A (GB)
Title: Display panel and method of operating said panel to produce differ ent colours of light output
IPC: H01J17/49
Filed: 1972-03-07
Abstract: 1356771 Gas discharge display panels BURROUGHS CORP 7 March 1972 [19 March 1971] 10471/72 Heading H1D A gas discharge display panel having scanning cells 60 defined by a crossed array of scanning anodes 40 and scanning cathodes 50, the latter having apertures 70 positioned one at each cell, and aligned display cells 90 coated with phosphor 94 and formed in an insulating plate 80 provided at its upper surface with display anodes 100, is employed to produce a display in two or more colours by operating some cells at an ionization level such that the light output from the ultra-violet excited phosphor predomi. nates, and other cells at a higher ionization level such that the gaseous glow discharge light output predominates. If the filling includes a rare gas, e.g. a neon/xenon mixture, or argon, together with mercury, the colours associated with a discharge in the rare gas, and in the mercury, may be successively obtained by increasing the ionization level. In modified arrangements the scanning cells may be dispensed with (Figs. 5 and 6, not shown), and optical filters may, in addition, be employed (Figs. 7 and 8, not shown).
Patent GB-312224-A (GB)
Title: Improvements in or relating to automatic photographic machines
IPC: G03B17/53
Filed: 1929-04-04
Abstract: 312,224. Siemens & Halske Akt.-Ges. May 22, 1928, [Convention date]. Automatic and coin-freed apparatus.-In automatic and coin-freed cameras a lever H bearing against a part of the film strip B stretched between two rollers R1, R2 is adapted to operate an electric contact K, controlling a coin-inlet locking-device, when the tension relaxes. The contact K controls an electromagnet which may either release a shutter for closing the, coin-inserÀ tion slot or operate a coin-return device. Alternatively the contact K may be replaced by a mercury contact tube mounted on the axis of the lever H. Specification 306,391 is referred to.
Patent GB-1140002-A (GB)
Title: Throat plate for a sewing machine
IPC: D05B3/24
Filed: 1967-03-06
Abstract: 1,140,002. Sewing machine. MITE CORP. 6 March, 1967 [31 May, 1966], No. 10523/67. Heading D1G. A throat plate for incapacitating the feed dogs comprises movable parts adapted to rest on the feed dogs and to rise and fall therewith, said parts having smooth bottom surfaces upon which the feed dogs may readily slide and smooth top surfaces upon which the work fabric may readily move. A plate 54, corresponding in shape to the original throat plate, is secured to the underside of the replacement, and larger throat plate 40. Plates 40 and 54 are formed with a needle-passing slot 52, and plate 40 is formed with slots 62 affording access to means 64 for fastening plate 54. Plate 40 is formed with long slots 58 in alignment with the feed dogs 44. Leaf springs 42, disposed in slots 58 with their ends 48 freely abutting the underside of plate 40, are provided on their' undersides with wear blocks 50 which fit closely into slots 56 formed in plate 54. The feed dogs operate in slots 56 to engage and slide over the smooth bottom surfaces of blocks 50, and thereby also to raise the smooth top surfaces of springs 42 periodically above plate 40.
Patent GB-1480539-A (GB)
Title: Photographic process
IPC: G03F7/105
Filed: 1975-03-13
Abstract: 1480539 Photographic photopolymerizable element LA CELLOPHANE 13 March 1975 [15 March 1974] 10584/75 Heading G2C A process for producing a photographic image comprises (i) exposing imagewise to light photosensitive element containing dispersed in a binder in one or more layers (a) a photopolymerizable composition having a dielectric constant which increases substantially on polymerization and (b) a thermographic composition which above a particular temperature changes from a colourless or slightly coloured form to a stable, coloured form, so that the photopolymerizable composition is polymerized in exposed areas to form a latent image, and (ii) subjecting the said element to a high frequency electric field to heat the polymerized areas to a temperature such that the thermographic composition changes colour while the unpolymerized areas remain at a temperature such that the thermographic composition does not change colour. Photopolymerizable monomers include acrylamide, barium acrylate, N, N<SP>1</SP>- methylene-biacrylamide, and lead acrylate; thermographic compositions include lead acetate/ thiourea/acetic acid, silver nitrate/o-benzoyl sulphimide, 6<SP>1</SP>-chloro-8<SP>1</SP>-methoxybenzo-indolinospiropyrane/4, 4<SP>1</SP>-isopropylidene-diphenol, bismuth oxychloride/tin tartrate/semicarbazide/ diphenylamine/disopropylamine, silver behenate/ calcium stearate/spiro-[2-methyl-3H(2, 1-b)- naphtho-3, 2<SP>1</SP>-pyrane-6<SP>1</SP>-methoxy-3<SP>1</SP>-methylbenzthiazoline], and calcium resinate/cobalt naphthenate/spiro-[3 methyl-3H(2, 1-b)-naphtho- 3, 2<SP>1</SP>-pyrane-3<SP>1</SP>-methylbenzothiazoline. Binders include polyvinyl alcohol and hydroxyethylcellulose.
Patent GB-803478-A (GB)
Title: Improvements in and relating to the manufacture of nitriles
IPC: C07C37/50
Filed: 1957-04-01
Abstract: Hydrocyanic acid is prepared and recovered as a by-product in the preparation of nitriles by reacting an amine with carbon monoxide at an elevated pressure and an elevated temperature in the presence of a dehydration catalyst.  The reaction is preferably carried out in the gas phase using pressures of above 300 atmospheres and temperatures of between 300 DEG  and 500 DEG  C. Specified catalysts are aluminium oxide, g -alumina, magnesia, zinc oxide and boron trioxide.  The amine reactant may be a primary or secondary, aliphatic or aromatic monoamine or diamine; those exemplified being aniline, diphenylamine, para-toluidine, para-phenylenediamine, meta-phenylenediamine, propylamine, ethylene diamine and 1 : 4-diaminobutane.  The hydrocyanic acid and phenolic by-products are separated from the final products by a preliminary alkali-extraction treatment (e.g. using sodium hydroxide) and are subsequently separated from each other by conventional methods.ALSO:Nitriles are prepared by reacting an amine with carbon monoxide at an elevated pressure and an elevated temperature in the presence of a dehydration catalyst.  The reaction is preferably carried out in the gas phase using pressures of above 300 atmospheres and temperatures of between 300 DEG  and 500 DEG  C. Specified catalysts are aluminium oxide, g -alumina, magnesia, zinc oxide and boron trioxide.  The amine reactant may be a primary or secondary, aliphatic or aromatic monoamine or diamine; those exemplified being aniline, diphenylamine, para-toluidine, para-phenylenediamine, meta-phenylenediamine, propylamine, ethylene diamine and 1:4 - diaminobutane.  Secondary and heterocyclic amines, phenols, amides and hydrocyanic acid are formed as by-products during the reaction, and these and unreacted amine may be separated from the nitrile product by successive alkali extraction, acid extraction and fractional distillation. The nitrile and dinitrile products may be hydrolysed to mono- and di-carboxylic acids respectively.  The examples describe the preparation and recovery of benzonitrile, isophthalic acid-dinitrile, para-tolunitrile, butyronitrile, succinic acid dinitrile, adipodinitrile, phenol, resorcinol, para-cresol, benzanilide, butyramide, adipic acid diamide, diphenylamine and pyrrolidine.  The para-tolunitrile product may be hydrolysed to toluic acid and the latter oxidized to terephthalic acid.
Patent GB-658418-A (GB)
Title: Fuels for internal combustion engines
IPC: C10L1/10
Filed: 1948-04-16
Abstract: A hydrocarbon fuel for internal combustion engines, especially diesel engines, contains at least 0.1 per cent. and especially 0.2-3 per cent, by weight of free or combined sulphur, and a metallic organic oxide in an amount such that the atomic ratio of the metal of the metallic organic oxide to the sulphur is from 0.02 to 0.1.  By "metallic organic oxide" is meant a compound which has an organic radical attached to an OM group, where M is a metal.  The metal may be of the alkali or alkaline earth group, such as lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium and barium, or may be titanium, chromium, iron, cobalt, nickel, copper, zinc, mercury, aluminium, tin, lead, antimony or bismuth.  Radicals which may be attached to the OM group are, for example, methyl, ethyl, n-propyl, isopropyl, butyl, amyl, benzyl, methyl benzyl, phenyl ethyl, phenyl propyl, naphthyl methyl, methyl-, ethyl- and propylphenyl, methyl- and ethyl-naphthyl, phenyl, naphthyl, cyclopentyl, methyl-, dimethyl- and ethylcyclopentyl, cyclohexyl and methyl-, polymethyl- and propyl-cyclohexyl.  The radicals may contain groups such as nitro, hydroxyl, keto, amino and ester groups or be substituted by halogen atoms.  Metal salts of organic acids and of the condensation products of phenols with formaldehyde may also be used.  Salts specified are the calcium derivative of the condensation product of formaldehyde and a p-octylphenol, sodium and calcium petroleum sulphonates and calcium naphthenate.  The metallic organic oxide may be introduced into the combustion chamber separately from the fuel, for example as a solution in a solvent such as a hydrocarbon lubricating oil fraction. Specifications 502,171, 551,852, 579,369 and 587,273 are referred to.
Patent GB-1038533-A (GB)
Title: Improvements in or relating to a process and furnace for the annealing of metals
Inventor: BIRO ATTILA
IPC: C21D1/767
Filed: 1963-03-18
Abstract: 1,038,533. Heat treatment furnaces. NIKEX NEHEZIPARI KULKERESKEDELMI VALLALAT. March 18, 1963, No. 10643/63. Heading F4B. A continuous heat treatment furnace comprises an arched roof 3 and concave hearth 2 with tangentially disposed burner ports 4, 4a and offtakes 5, 5a feeding flues 6, and with openings 8 in a front wall for the introduction of an envelope of protective gas. Ingots 7 are pushed through the furnace on skid rails 11 and the hearth 2 slopes down to the furnace front where a taphole is provided for molten slag. Excess protective gas is burnt with air supplied in the preheating section. In a modification, Fig. 2 (not shown), there is a single series of offtakes 5 and burner ports in the same side wall.
Patent GB-776212-A (GB)
Title: Improvements relating to motor vehicles
IPC: B60G11/52
Filed: 1955-04-13
Abstract: 776,212. Motor vehicle frames. DAIMLERBENZ AKT.-GES. April 13, 1955 [April 13, 1954], No. 10709/55. Class 79(4). In a motor vehicle having an auxiliary frame resiliently abutted against the main frame of the vehicle and front or rear wheels 3 resiliently abutted against the auxiliary frame, two outer abutments for the auxiliary frame are located in the plane of up and down movements of the axes of the wheels 3 and axially above cylindrical suspension springs 8, a further abutment 14 being disposed outside the plane but within the wheel base. As shown the vehicle is provided with a combined body and main frame 1 having arms 2 and the auxiliary frame has longitudinal members 4 interconnected by a transverse. member 13. The wheels 3 are suspended from the auxiliary frame by arms 5, 6, the springs 8 being arranged between the arms 5 and brackets 7 on the members 4. The brackets 7 have upward projections 9 detachably connected to truncated cones 11 within sleeves 10 secured to arms 2, resilient annular cushions 12 being interposed between the members 9, 11 and the sleeves 10. The auxiliary frame is connected in a similar manner to the underside of the body 1 at 14. Towards the inner ends of the members 4 a further transverse member 19 may be provided having an upwardly bowed shape to pass over the engine and gearing. The auxiliary frame may be of H or U shape, and in the latter case the opening may be provided at the front or rear. The invention may be applied to the front and/or rear wheels of the vehicle.
Patent GB-885004-A (GB)
Title: An hydraulic haulage device for mine cars
IPC: B66B17/20
Filed: 1958-04-03
Abstract: 885,004. Liquid pressure engines. DUSTERLOH FABRIK FUR BERGWERKSBEDARF. G.m.b.H., G. April 3, 1958 [April 6, 1957], No. 10807/58. Class 69 (2). A liquid pressure engine for mine cars comprises two parallel cylinders 4, 5 whose pistons 6, 7 are advanced alternately by pressure fluid supplied at one end under control of main and auxiliary valves in a supporting block 1 having inlet and outlet lines 2, 3, the advancing piston forcing a pressure medium through a cylinder linkage 8 to return the other piston and subsequently causing the pressure medium to reverse the valves. Pressure fluid entering by line 2 passes through line 9 and main slide valve 10 to cylinder 4 to advance piston 6 which forces pressure medium ahead of it through passage 8 into cylinder 5 to move piston 7 downwards, a connecting line 12 from passage 8 to block 1 also allowing the pressure medium to act through passages 13, 14, duct 15 in auxiliary slide valve 16 and annular duct 17 in main slide valve 10 to keep the valves in the position shown. As piston 6 finishes its working stroke it cuts off linkage 8 and forces pressure fluid through line 19 on to face 18 of valve 16 to move the valve to the left whereupon the fluid flows into line 14, through bore 22 of auxiliary valve 40 and into an annular space to the left of main valve 10 to move the latter to the right. The working cycle is repeated by the advance of piston 7 and at the end of its stroke pressure medium passes through line 38 to control face 39 of valve 40 to reverse the valves. An annular groove 24 and communicating bores 25, 26 in valve 10 allow fluid losses in linkage 8 to be made up from line 9 when the valve moves past a branch 27 of line 12 and excess pressure in lines 9 and 2, and in linkage 8, may be relieved through a valve 20 giving access to outlet 3. Projections 28, 29 on the pistons engage bushes 30, 31 on their return strokes and bores 32, 34 in the piston heads admit fluid to cylinder enlargements when starting up.
Patent GB-472157-A (GB)
Title: Improvements in machines for winding yarns or threads or the like on to paper tubes or cones or other bodies
IPC: B65H54/28
Filed: 1937-04-16
Abstract: 472,157. Winding yarns &c. HOLT, Ltd., T., and HOLT, R. April 16, 1937, No. 10839. [Class 120 (ii)] In a machine for winding yarns &c into conical packages on conical holders in which the winding spindle is frictionally driven and the driving friction wheel is moved axially to vary the speed of the spindle, as the winding proceeds, by connections from a rockable frame in which the yarn guide is traversed by a revolving cam, and which is moved away from the centre line of the spindle by the body of yarn being wound, a member presenting a surface inclined to the axis of the spindle is provided on the rockable frame, such surface constituting a thread deflector extending substantially the entire length of the package being wound, and being located between the usual thread guide plate and the traversing guide so that the tension of the yarn passing under the surface to the traversing guide is automatically varied as it passes from the large to the small diameter of the package. As shown, the member is in the form of a rod 21 adjust ably mounted by means of an arm 24 and set screw 26 in a bracket 22 adjustably secured to the rockable guide frame 17. In other arrangements, the member is in the form of a plate, a slot therein, or the under surface thereof forming the inclined surface.
Patent GB-369765-A (GB)
Title: The manufacture of new vat dyestuffs
IPC: C09B3/00
Filed: 1931-04-13
Abstract: Brown vat dyestuffs are obtained by treating with an acid condensing agent, such as aluminium chloride or concentrated sulphuric acid, the vat-dyes obtained according to Specification 299,972, [Class 2 (iii), Dyes &c.], by treating with an alkaline condensing agent a glyoxal-dianthraquinone compound of the general formula:-- <PICT:0369765/IV/1> The same products may also be obtained by treating the above glyoxal-dianthraquinones, without a preliminary alkali-condensation, with an acid condensing agent such as aluminium chloride.  The reaction may advantageously be carried out in the presence of an indifferent diluent and of a suitable oxidizing agent, such as manganese dioxide, ferric chloride, halogen or the like; halogen atoms may thus be introduced into the molecule.  In examples, (1) the condensation product of glyoxal and anthrone (of example 1 of Specification 299,972) with aluminium-sodium chloride and manganese dioxide, are heated together for a period depending upon the temperature attained; ferric chloride may also be added; (2) the condensation product from 2-chloranthrone and glyoxal is heated with sodium-aluminiumchloride and manganese dioxide; or instead of adding manganese dioxide, chlorine or air may be led through the reaction mass; the condensation products from 2-methyl- or -2-phenylanthrone and glyoxal may also be converted by such treatment; (3) the condensation product from 2 : 6-dichloranthrone and glyoxal is heated together with sodium-aluminium-chloride and manganese dioxide; (4) the condensation product from anthrone and glyoxal is subjected to alcoholic potash fusion and the product heated with sodium-aluminium chloride; the condensed product from 2-chloranthrone and glyoxal first alkali-fused may similarly be treated, or better heated in concentrated sulphuric acid; (5) the condensation product from glyoxal and anthrone is alkali-fused and then heated in concentrated sulphuric acid; the product is more or less sulphonated, such sulphonation being decreased by the presence of sodium sulphate; zinc chloride may be used instead of sulphuric acid as condensing agent.
Patent GB-1083101-A (GB)
Title: Method and apparatus for folding laundered articles
IPC: D06F89/00
Filed: 1965-03-16
Abstract: 1,083,101. Folding sheets. H. OELKERS. March 16, 1965 [March 17, 1964], No. 10992/ 65. Heading D1S. Laundered articles are each folded at least three times by displaceable folding fingers and after each folding have their face side facing outwards. A laundered article, e.g. a sheet, bed-cover, table-cloth or towel, is fed from a calender, with its rough side upwards, onto a plurality of narrow endless conveyor belts 2. The article then passes around a roller 8a, over which parallel narrow belts 8 are guided, onto the upper surface of the belts 8 with the smooth side thereof facing upwardly. The leading edge of the article operates a switch 1, comprising an angled lever to cooperate with a fixed contact 1b to operate a clutch 1a to drive an endless conveyor belt 3, racked bar or slider in the direction opposite to the direction of movement of the belts 2. A photoelectric cell 4 on the belt 3 scans the article and cooperates with a light source 4a, disposed in a space between the belts 8 and extending over the whole length of the belt 3, to actuate a first folding device 5 comprising pivotal or vertically displaceable folding fingers disposed between the belts 8 to push the article along the transverse centre line thereof upwardly between rollers 6, 6a to effect the first fold, Fig. 4 (not shown). The folding fingers may each be provided with an upwardly inclined or upwardly curved front end portion, as shown. The device 5 disengages the clutch 1a and the belt 3 is returned to its original position by a spring, weight loading, pneumatic or electric actuation. The article is conveyed by narrow belts 7 and the leading edge thereof contacts a second switch 1 which actuates a second belt 3 carrying a photocell 4 cooperating with a light source 4a to operate a second folding device 5 which pushes the article upwardly between a roller 9a and another roller onto narrow belts 9, Fig. 6 (not shown). The article contacts a third switch 1 and similarly a third folding device 5 is actuated to push the article upwards onto belts 11, Fig. 8 (not shown). Guide belts 10 are provided or may be omitted, Fig. 1 (not shown). The thrice folded article is then discharged and may pass to a longitudinal folding apparatus of similar construction to the transverse folding apparatus. The various conveyor belts may be provided with tension adjusting means. Auxiliary guide plates (not shown) may be provided. In a modification, Fig. 11 (not shown), belt guides 13 may be provided to guide the article from the belts 2 onto the belts 8.