baber/WOPTO huggingface dataset:
Patent GB-369799-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/20
Filed: 1931-05-27
Abstract: 369,799. Colour photography. DU PONT FILM MANUFACTURING CORPORATION, (formerly Du Pont Pathe Film Manufacturing Corporation), 35, West 45th Street, New York, U.S.A. May 27, 1931, No. 15496. Convention date, June 19, 1930. [Class 98 (ii).] A colour filter layer is applied to the surface of an emulsion in the form of a mechanically inseparable coating of transparent material (e.g. gelatin, agar-agar, or casein) containing a dye in a water-insoluble and mordanted state which will not bleed into the emulsion, and can be subsequently removed by chemical or mechanical destruction. In a bi-pack the coating 3 may be applied to the emulsion surface of the blue-green sensitive emulsion 2 which is in contact with the panchromatic or other emulsion 4 of the rear plate or film. Alternatively the layer may be on the rear emulsion 4. In a tri-pack another similar coating may be applied on the back surface of the middle film support or as the emulsion surface of the rear films. For preparing the filter layer Luxol Fast Red B dye may be fixed in a gelatin solution by adding alum. Formaldehyde or other hardening agent may also be added. The mixture is then chilled and set to a jelly, shredded and washed to remove excessive dye. It is then melted and diluted to any desired degree for coating. The colloid coating also forms a better surface contact with the adjacent emulsion and obviates light scattering and diffusion.
Patent GB-579387-A (GB)
Title: Improvements in or relating to the bonding of butadiene copolymers to metal
IPC: C08J5/12
Filed: 1943-09-22
Abstract: An adhesive composition comprising a polyvinyl butyral, having 20.7-47.4 per cent and preferably 31.3-45.7 per cent, combined butyraldehyde, and a polyhydric phenolaldehyde resin is used for bonding copolymers of butadiene with, for example, acrylonitrile, styrene, or isobutylene to metal such as zinc, nickel, chromium, copper, brass, iron, steel, lead, or particularly light metals such as aluminium, magnesium, or their alloys.  The polyvinyl butyral and the resin-forming ingredients comprising a polyhydric phenol such as resorcinol, phloroglucinol, or orcinol, an aldehyde, e.g. formaldehyde, paraformaldehyde, acetaldehyde, furfural, or aldol, and a polymerization catalyst such as soda or potash, are dissolved in a solvent and applied to the metal surface, and the butadiene copolymer is superimposed and subjected to a pressure of at least 100 lbs. per square inch at a temperature of 80-160 DEG  C. to ensure polymerization of the resin. The polyvinyl butyral is present from 25 to 60 per cent, and preferably 35-45 per cent, of the weight of the solvent-free adhesive.ALSO:Copolymers of butadiene with, for example, acrylo-nitrile, styrene, or isobutylene are bonded to metal such as zinc, nickel, chromium, copper, brass, iron, steel, lead, or, particularly, light metals such as aluminium, magnesium, or their alloys, by applying to the surface of one of the materials an adhesive comprising a polyvinyl butyral, having 20.7-47.4 per cent, and preferably 31.3-45.7 per cent combined butyraldehyde, and a polyhydric phenolaldehyde resin and applying the other material at an elevated temperature.  The polyvinyl butyral and the resin-forming ingredients comprising a polyhydric phenol such as resorcinol, phloroglucinol, or orcinol, an aldehyde, e.g. formaldehyde, paraformaldehyde, acetaldehyde, furfural, or aldol, and a polymerization catalyst such as soda or potash are dissolved in a solvent and applied to the metal surface, and the butadiene copolymer is superimposed and subjected to a pressure of at least 100 lbs. per square inch at a temperature of 80-160 DEG  C. to ensure polymerization of the resin.  The polyvinyl butyral is present from 25 to 60 per cent and preferably 35-45 per cent of the weight of the solvent-free adhesive.
Patent GB-496733-A (GB)
Title: Aromatic oxyketone arsenicals and a process of making them
IPC: C07F9/74
Filed: 1937-06-04
Abstract: Arsonic acids of therapeutic value are prepared by reacting a hydroxyphenyl-arsonic acid with a halogen-ketone in the presence of alkali.  The products are preferably used in the form of their water-soluble salts, e.g. their sodium, potassium, lithium, ammonium or calcium salts.  The examples describe the preparation of phenoxyacetone-p-arsonic acid and phenoxyacetophenone-p-arsonic acid by heating p-hydroxyphenyl-arsonic acid with monochloracetone and o -chloroacetophenone respectively in aqueous caustic soda solution; the free acids are obtained after acidification with hydrochloric acid and may be converted into their water-soluble salts.  It is stated that when phenoxyacetophenone-p-arsonic acid is boiled with hypophosphorous acid, the yellow arseno compound precipitates.
Patent GB-221578-A (GB)
Title: Improvements in and relating to collapsible tubes and the like
IPC: B65D35/14
Filed: 1923-06-16
Abstract: 221,578. Marks, E. C. R., (Lightfoot, S.). June 16, 1923. Tubes or containers, collapsable. - Collapsable tubes or containers for lubricants, paints, printers' ink, &c. are provided with an impervious liner. which is free to adjust itself transversely and longitudinally within the tube. and to deformations in the contour thereof, and which serves to prevent the escape of the contents in the event of fracture of the tube. The tube is preferably in the form of a tapered casing 9, Figs. 1 and 2, of coated sheet iron or similar inexpensive material, and the liner consists of a sheet 14 of impregnated paper or the like rolled into the form of a frustum of a cone. After insertion of the liner, the tube is filled, and is closed by pressing together the edges and folding them over. The contents are discharged by stepping upon the tube, or by means of a squeezing-tool. The Provisional Specification describes also a liner of which the margins are sealed together.
Patent GB-240245-A (GB)
Title: Improvements in apparatus for applying heat in connection with road repairing, road making and other purposes
IPC: E01C23/14
Filed: 1924-07-01
Abstract: 240,245. Wallwork, C. H., Wallwork & Co. (1920), Ltd., H., and Watson, F. W. July 1, 1924. Burners, mounting; overflow fittings.-The shield 1 enclosing the burners 4 of a wheeled apparatus for applying heat to road surfaces is pivoted at 19 to lever means 15, 17 fulcrumed to the wheel axle 18 for the purpose of moving the shield and burners bodily towards or away from the road surface. Catches 24 engage the handle 14 to retain the shield in the raised position and the lever arm 15 rests against a stop 21 when the shield is lowered. To prevent oil dripping or blowing on to the road surface, the oil-burners 4 fed by a pipe 6 have a drip-tray 26 forming an extension of the usual lighting-tray 25-
Patent GB-1433525-A (GB)
Title: Finishing of textiles
IPC: D06B19/00
Filed: 1973-04-03
Abstract: 1433525 Textile finishing SAMUEL PEGG & SON Ltd 2 April 1974 [3 April 1973] 15806/ 73 Addition to 1332727 Heading D1L Liquid finishing agents, e.g. dyes, are applied to textile webs or ropes in apparatus comprising as shown in Fig. 1 a driven drum 12 and secondary roller 14 for driving continuous length of textile T through the finishing liquid supply means 22, which comprises a ring device 24 provided with a plurality of inwardly facing apertures of size sufficient to provide a fine spray, and through the device 28 arranged to project steam, air, or air and steam through an annular opening 30 so that the fluid projected impinges on the textile at an acute angle to the path of the textile and assists the progress of the textile towards the storage compartment 16. The apparatus is also provided with a heat exchanger 21 connected between the fan 20 and the regulating valve 36 whereby air exhausted from the casing 10 may be heated and recirculated. A pipe 40 is provided leading to pipe 34 to provide a spray of atomised water to produce a cooling effect to maintain the temperature in the chamber stable during the impregnation stage.
Patent GB-645314-A (GB)
Title: Improvements in and relating to the preparation of dialkyl-substituted dihalogenosilanes
IPC: D06M15/643
Filed: 1948-06-11
Abstract: Dialkyldihalogenosilanes are obtained by reacting heated silicon with an alkyl halide in the presence of a finely-divided cupreous powder, having as a principal constituent friable metallic copper core particles surrounded by protective surface films of curprous oxide inhibiting oxidation by the air, said films being relatively thin as compared with the size of the enclosed copper cores.  As alkyl halides there may be used methyl chloride, methyl bromide, ethyl chloride, propyl chloride, butyl chloride and isobutyl bromide.  The reaction may be effected in the vapour phase at a temperature of 200 DEG  to 400 DEG  C., the catalyst being present in an amount equal to 5 to 25 per cent by weight of the total weight of the catalyst and silicon.  The products are useful as waterproofing agents.  Detailed examples are given. Specifications 572,740, [Group VIII], 575,667, 575,668, 591,810 and 626,353 are referred to.
Patent GB-457341-A (GB)
Title: Improvements in or relating to the manufacture or treatment of textile fabrics
Inventor: VAN GELDEREN, FREDERIK MARINUS
IPC: D06M15/693
Filed: 1935-05-31
Abstract: 457,341. Waterproofing ; coated fabrics. V.G. MANUFACTURING CO., Ltd., and GELDEREN, F. M. VAN, Gorst Road, Park Royal, London. May 31, 1935, No. 15870. [Class 140] Textile fabrics are impregnated with aqueous dispersions of rubber &c. in such manner that the dispersion is fully absorbed without leaving a layer on the surface of the material, the material thus impregnated being treated with a coagulant in such form or concentration and under such conditions that the substance within the material is first repelled away from the coagulant to take up a new position in the material and is then coagulated by the same coagulant. Thus, the material is first impregnated and, after impregnation, squeezed out in such a manner that the dispersion is fully absorbed without leaving a surface layer, and is then treated with the coagulant. A twofaced repelling action may be produced by surrounding the impregnated and squeezed material with a coagulant in the form of vapour or aerosol ; or a one-faced repelling action by treating on one side only with a coagulant in vapour or aerosol form or in liquid form. The repelling effect is not obtained by immersion in a bath of liquid coagulant. One-sided repelling action may be effected by passing the impregnated material over a smooth, solid surface, placed in a container, in which the level of the coagulant is maintained just above the smooth surface. Aqueous dispersions of rubber, gutta, balata, varnishes, drying oils, artificial resins and cellulose derivatives may be so applied. Suitable volatile coagulants are hydrochloric, acetic, formic, &c. acids and low-boiling organic liquids, e.g. acetone, alcohol, &c. Suitable liquid coagulants are formic, lactic, hydrochloric and acetic acids in respective volume concentrations from 40, 7¢, 3 and 25 per cent at normal temperatures, or alum solution, one part in two parts water, at 40‹ C. ; or lower concentrations mixed with salt water solutions, e.g. 10 per cent formic or acetic acid with a 20 per cent solution of common salt or Epsom salts. The products may be used as a base for felt, artificial leather, rubbercloth, &c. British Specification 416,077 and U.S.A. Specification 1,983,764 are referred to.
Patent GB-686514-A (GB)
Title: Improvements in and relating to resilient mountings
IPC: F16F15/073
Filed: 1951-07-04
Abstract: 686,514. Mounting switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 4, 1951 [July 8, 1950], No. 15877/51. Class 38 (v) [Also in Group XXXII] A resilient mounting for a voltage regulator or other piece of apparatus, e.g. for use on aircraft, comprises a base 2 carrying at least three spiral springs 5 on brackets 3, the inner ends of the springs being arranged in a common plane parallel to the base 2 and supporting by means of arms 8 the base 7 of the voltage regulator. In the form shown, there are four springs 5 arranged at the corners of the rectangular base 2 and the centre of gravity of the regulator lies in the common plane. Displacement of the base 7 is limited by the arms 8 engaging the brackets 3 or by pins 9 on the arms engaging rubber eyelets 4 in circular holes in the brackets 3. The springs are of laminated structure so as to be highly damped and maybe surrounded by tight sleeves of woven metal strands, Fig. 3 (not shown). They are also such that they are displaced an equal amount in any of three mutually perpendicular directions by a given force applied to the inner end of a spring.
Patent GB-177736-A (GB)
Title: Process for treating silicates
IPC: C01B33/32
Filed: 1921-06-09
Abstract: Alkali metal compounds, obtaining from complex silicates Relates to the treatment of silicates, such as potassium-bearing silicates and clays, in order to recover their constituents in commercially available form.  The silicate is fused with boron trioxide or any substance that yields boron trioxide at a high temperature, and the resulting melt suspended in water and treated with sulphur dioxide. Bisulphites of the metals present pass into solution, while silica remains undissolved and is filtered.  The filtrate is boiled, whereupon sulphur dioxide is evolved, the bisulphites converted to sulphites, and aluminium precipitated as hydroxide.  The precipitate is filtered, and the filtrate boiled, with access of air to oxidize sulphites to sulphates.  At the same time any iron present is precipitated, and filtered.  The filtrate then contains sulphates of the alkali metals, if present and boric acid.  The constituents are separated by frictional crystallization, and the boric acid used again.ALSO:These compounds are produced in a process for treating silicates, such as potassium bearing silicates and clays, in order to recover their constituents in commercially available form. The silicate is fused with boron trioxide, or any substance that yields boron trioxide at a high temperature, and the resulting melt is suspended in water and treated with sulphur dioxide. Bisulphites of the metals present pass into solution, while silica remains undissolved, and is filtered off, after which it may be treated with alkali to produce sodium silicate.  The filtrate containing the bisulphites is boiled, whereon sulphur dioxide is evolved, the bisulphites converted to sulphites, and aluminium precipitated as hydroxide.  The precipitate is filtered, and the filtrate boiled, with access of air, to oxidize sulphites to sulphates.  At the same time any iron present is precipitated and filtered.  The filtrate now contains sulphates of the alkali metals, if present, and boric acid. The constituents are separated by fractional crystallization, and the boric acid used again.
Patent GB-1243111-A (GB)
Title: Improvements in or relating to production of formed articles of blackened stainless steel
IPC: C23C22/74
Filed: 1969-03-26
Abstract: 1,243,111. Coated steel. ALLEGHENY LUDLUM STEEL CORP. 26 March, 1969 [15 April, 1968], No. 15923/69. Heading B2E. [Also in Division C7] Stainless steel is surface-conditioned as by abraiding, its surface is oxidised to produce a blackened, porous, oxide coating which is subsequently impregnated with an alkali metal silicate, and the silicate is dried and fused by heating to a temperature in the range 1400 to 2000F. The oxidising treatment may be carried out using an alkali metal dichromate solution, and after this treatment the steel is cured to produce an oxide coating 1,000 to 500,000  thick, which is impregnated with the silicate solution, which may contain a wetting agent and the coating is cured at about 600F prior to fusing at 1400-2000F.
Patent GB-1409002-A (GB)
Title: Culture medium for bacteria
IPC: C12Q1/02
Filed: 1973-04-03
Abstract: 1409002 Enzymatic hydrolysis of fish protein MORINAGA MILK INDUSTRY CO Ltd 3 April 1973 [11 Dec 1972] 15958/73 Heading C3H Fish protein is at least 80% hydrolysed with a protease selected from pancreatin and enzymes derived from Aspergillus, Bacillus, Streptomyces and Rizopus which are active at about pH 7 and at 35-55‹ C., then the hydrolysate is heated to deactivate the enzyme and for pasteurization, filtered, defatted and dried, the product being used in a concentration of at least 0À5% w/v. of the total medium, to replace animal organ infusion and peptone in BHI or HIB nutrient media. The fish protein may be of fish meat. Substitute media for BHI and HIB, designated FLP1 and FLP2, are described.
Patent GB-138846-A (GB)
Title: Motor tractors with propulsion levers
IPC: B62D57/00
Filed: 1919-06-25
Abstract: 138,846. Soc. Auxiliare d'Exptoitations Industrielles. Feb. 8, 1919, [Convention date]. Propelling by means other than adhesion driving-wheels and racks; couplings for road vehicles. - Improvements in motor tractors of the kind having propulsion levers as described in Specification 123,762 consist in the provision of three such levers operated by cranks set at 120‹ degrees apart, swivelling the rear supporting wheels 53 for steering, the interposition of a slip coupling 60 in the main driving-shaft 59, and providing a trailer &c. coupling adjustable along the side bars of the chassis. The levers 75, 76, 77 are provided with bearing blocks 72, 73, 74 at their mid-portions for receiving crank-pins disposed on a shaft 67 rotated by sprocket gearing from a countershaft 63 driven through reversing and change-speed mechanism 61 from the main shaft 59. The upper ends of the levers have bearing blocks 78, 79, 80 connected by links 84, 85, 86 with a rigid stationary cross-piece 90. The slip coupling 60 consists of a disk A rigid with the engine shaft 59 and pressed upon on both sides by fibre disks D arranged within a cup B, which is secured to the shaft 59' and has a cover C urged towards closure by springs G and adjustable nuts F. The plough or other instrument to be drawn is connected with plates 95 having pins 96 and adapted to be bolted at any desired point to the channelled members 51 constituting the longitudinal sides of the chassis. To enable the driver to control the tractor when working forward or backward, the steering-wheel 56 may be placed in the centre, as shown at 56', his seat can be arranged to revolve through 180 degrees, and the controls may be duplicated.
Patent GB-318285-A (GB)
Title: Improvements relating to the moulding of concrete and like pipes
IPC: B28B21/68
Filed: 1928-06-01
Abstract: 318,285. Rutenberg, A. June 1, 1928. Centrifugal machines; casting and moulding pipes.-Comprises a process for forming an impermeable layer in a pipe by introducing concrete material together with small metal particles into a rotating tube or mould. The metal may be localized in either the outer or inner layer or an intermediate layer of the pipe by introducing it in the first or any other charge of the concrete material. Suitable chemical substances, such as ammonium chloride, which will not have a deleterious effect upon the strength of the concrete, may be introduced with the metal particles to induce oxidation with consequent expansion and strengthening effect. The metal particles may be introduced into the mould after the concrete has been spun, so that after further rotation the metal particles' are partly embedded in the inner surface and are left projecting therefrom to form bonding pieces serving to hold asphalt or other impermeable lining material in contact with the concrete.
Patent GB-111134-A (GB)
Title: Improvements relating to Gear Cutting Machines.
Inventor: ROBERTS WILLIAM FREDERICK
IPC: B23F5/16
Filed: 1916-11-10
Abstract: 111,134. Roberts, W. F. Nov. 10, 1916. Gearing-cutting.-A machine for cutting double - helical and straight gears comprises a cutter saddle 20 reciprocated on a standard 10 bv a pulley 22 through gearing 23 - - 28, 33. 31, 32, 21, and nuts 29, 30. The cutter spindles 34, 35 are driven from the same end, and one passes through the other with a slight clearance to allow of a small canting movement of the spindles relatively to their driving- gears 42, 43, which are connected to the spindles by flexible connexions 44, 45. The spindle 34 and its driving-gear are carried by an auxiliary saddle 97 adjustably mounted on the saddle 20. The lower cutter 36 is preferably mounted on a short conical mandrel 39 detachably clutched to the end of the spindle 35, and the upper cutter 37 is mounted on the mandrel-shaped end of the spindle 34. In order to permit of the setting up of the cutters and of their release movements during the return strokes, the lower bearing blocks 41. 50 are made adjustable by providing them with curved grooves 52 engaging the curved faces of adapter blocks 91, of which the other ends engage straight grooves in the supporting lugs of the bearings. Eccentrics 92 on the spindles 55, 56 work in lugs 93 on the bearing blocks and move the blocks when cranks 57, 58 on the spindles 55, 56 are actuated by solenoids 59, 60, or by mechanical means, at the end of the movements of the saddle 20, thereby releasing the cutter which has finished its cut and bringing the other into cutting position. The lower cutter may be adjusted to enter the blank to the same depth as the upper cutter by connecting the arm 57 to the spindle 55 through a worm working with a worm-wheel on the end of the spindle, and providing a micrometer head on the worm. The worms 46, 47 driving the spindles 34, 35 are actuated from a spindle 78 through bevels 79, 80. The continuous rotation corresponding to the rotation of the blank 15 is imparted to the spindles from the shaft 17 through gear-wheels 83 - - 86, spindle 37, a worm on the shaft 87 and a worm-wheel on a differential gear 81 driving the spindle 78. The additional turning movement of the cutters corresponding to the angle of the gear teeth to be cut is effected by the shaft 33 driving through worm gearing a shaft 71, which drives a shaft 76 through a gear-train 72 - - 75. The oscillating shaft 76 controls the spindle 78 through bevels 77 and the lower member of the differential gear 81. By using change-gear in the train 72 - - 75, the pitch-angle of the teeth cut may be varied. Straight gears may he cut by using straight-toothed cutters, while the differential feed through the shaft 76 is thrown out of action and the lower member of the differential gear is locked. The blank 15 is driven by the shaft 17 through worm gear, and the table carrying it is slidably mounted. The reciprocating parts of the apparatus may be counter-balanced
Patent GB-708652-A (GB)
Title: Improvements relating to automatic shuttle change looms
IPC: D03D45/34
Filed: 1951-07-07
Abstract: 708,652. Automatic shuttle-change mechanism. WALKER. H. D. and ESKDALE, J. July 3, 1952 [July 7, 1951], No. 16160/51. Class 142(2) In the loom described in Specification 688,470, in which a shuttle loader pivoted on the slay swings forward to fetch a shuttle from a magazine 5 mounted on the breast beam, the loader strikes an arm 2 which, through pin and slot connections 7, moves slides 9 rearwardly; the slides have inclined grooves 10 engaging the tips of the bottom shuttle 16 whereby it is positively fed down on to the loader, any tendency to roll over being prevented by the other shuttles lying on it.