baber/WOPTO huggingface dataset:
Patent GB-1338443-A (GB)
Title: Sensitive silver halide photographic materials
IPC: G03C7/30
Filed: 1971-04-19
Abstract: 1338443 Photographic converted-halide silver halide emulsions EASTMAN KODAK CO 19 April 1971 [20 March 1970] 24562/71 Heading G2C A sensitive photographic material comprises a support bearing a layer of a chemically surfacesensitized converted-halide silver halide emulsion of which the silver halide comprises at least 50 mole % bromide and up to 10 mole % iodide, any remainder being chloride, the material containing a colour coupler incorporated in the emulsion layer or a layer adjacent thereto. The silver halide preferably comprises at least 80 mole % bromide and less than 5 mole % iodide. The emulsion layer may be red-, green- or blue-sensitive. Example 4 describes a multi-colour material containing red-, green-, and blue-sensitive layers according to this invention each containing the corresponding colour coupler coated on a white titanium dioxide pigmented polyethylene coated, electron bombarded paper support. The gelatine layer between the red- and greensensitized emulsion layers in Example 4 contains 2-(2-hydroxy-3, 5-di tert-amylphenyl)- benzotriazole as U.V. absorber. The converted emulsion may be treated with sodium thiosulphate pentahydrate to create electron traps at the surface of the silver halide grains, and the sodium salt of 4-hydroxy-6-methyl-1, 3, 3a, 7- tetraazaindene may be added to slow the ripening process and prevent further grain growth (see Ex 1) These photographic materials have excellent storage stability, good speed, low fog, excellent sensitometric curve shape, good developability and high resistance to pressure sensitivity.
Patent GB-1478621-A (GB)
Title: Production of unsaturated nitriles using catalysts promoted with various metals
IPC: B01J23/89
Filed: 1974-06-04
Abstract: 1478621 (Meth)acrylonitrile STANDARD OIL CO 4 June 1974 [4 June 1973 19 July 1973 4 Jan 1974] 24600/74 Heading C2C [Also in Division B1] Acrylonitrile or methacrylonitrile are produced by the reaction of propylene or isobutylene with molecular oxygen and ammonia at 200-600 C. in the presence of a catalyst of the empirical formula wherein: X is Ge, Sn, Cu, Ag, Cr, Ru, W, Be, B, Ga, In, Mn, Sb, Th, Zr, Y or mixtures thereof; A is alkali metal, alkaline earth metal, Sc, Y, rare earth metal, Nb, Ta, P, As or mixtures thereof and is different from " X " or " C "; C is Ni, Co, Mg, Zn, Cd, Ca or mixtures thereof; a is 0.01 to 4; 6 is 0 to 4; c and d are 0À01 to 12; e is 0.01 to 6; and x is a number to satisfy valency requirements. The examples describe the ammoxidation of propylene using a feed of propylene / ammonia / oxygen / nitrogen / steam molar ratio 1.8/2.2/3.6/2.4/6, a contact time of 3 seconds, a WWH of 0-10 and a temperature of 420 C., and the ammoxidation of isobutylene with a feed of isobutylene/ammonia/air/steam of 1/1.2 or 1.5/11/4 at a temperature of 400 C.
Patent GB-1156653-A (GB)
Title: Coated Particles
Inventor: MOODY ANTHONY GIFFORD
IPC: B01J13/14
Filed: 1965-06-10
Abstract: 1,156,653. Coated particles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 June, 1966 [10 June, 1965], No. 24607/65. Heading B2K. [Also in Divisions C1, C3 and C4]  Solid particles, are encapsulated in synthetic polymer by carrying out the dispersion polymerisation of a monomer in an organic liquid in which the monomer is soluble and the resulting polymer is insoluble and in the presence of a stabiliser for the resulting insoluble polymer, the organic liquid also containing dispersed solid particles having adsorbed thereon a polymer which is insoluble in the organic liquid and on which there is formed an encapsulating layer of the insoluble polymer produced by the dispersion polymerisation, the encapsulated particles being stabilised in the organic liquid by the stabiliser for the encapsulating polymer. Examples describe the encapsulation of pigments e.g. particles of TLO 2 , red iron oxide, and vegetable black, pesticides, herbicides, blowing agents, catalysts, metal powders, the adsorbed polymers being a copolymer of methyl methacrylate with methacrylic acid; a polyvinyl pyrrolidone backbone with pendent polymethyl - methacrylate chains and a copolymer of vinyl acetate with acrylic acids; encapsulating polymers being copolymers of methyl methacrylate with methacrylic acid and vinyl acetate with acrylic acid; polyvinyl acetate; and polyvinyl chloride.
Patent GB-245851-A (GB)
Title: An improved tool holding socket
IPC: B23B51/12
Filed: 1924-10-16
Abstract: 245,851. Paige, W. R., Hanson, J. H., and Stalker Drill Works, Ltd. Oct. 16,1924. Chucks.-A split taper socket b having a parallel recess c for the reception of a tool, and adapted to be inserted within another socket or within a tool spindle, has the usual tang end omitted so that there is no positive driving connection between the socket and tool spindle. The end of the socket is provided with an axial hole g for the reception of a tool drifting punch. The punch may be permanently loosely mounted in the hole g and may be provided with an upper head for ejecting the socket. The socket may be formed with an integral non-driving extension to facilitate its removal from the tool spindle.
Patent GB-1536705-A (GB)
Title: Track wheel for crawler type vehicles
IPC: B60B3/12
Filed: 1976-06-15
Abstract: 1536705 Endless track vehicles CATERPILLAR TRACTOR CO 15 June 1776 [14 Oct 1975] 24729/76 Heading B7H In a wheel for carrying a track of an endless track vehicle including a hub 12 connected to a rim 14 by first and second panels 16, 18, a plurality of plates 22, 24 are spaced angularly about the wheel and have flanges 34, 36, 38, 40 connected to respective panels 16, 18. As shown in Fig. 2 the inner ends of plates 22 and the outer ends of plates 24 are connected respectively to the hub 12 and rim 14, adjacent pairs of plates 22, 24 being spaced angularly about the wheel. The hub 12, rim 14, panels 16, 18 and plates 22, 24 can be formed as a unitary element.
Patent GB-1299336-A (GB)
Title: Stapling machine
Inventor: STREKOPYTOV ALEXEI ALEXEEVICH
IPC: A61B17/88
Filed: 1971-04-19
Abstract: 1299336 Surgical stapler VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT KHIRURGICHESKOI APPARATURY I INSTRUMENTOV 19 April 1971 [6 March 1970 12 March 1970] 24750/71 Heading A5R [Also in Division B4] A surgical stapler comprises a staple magazine 8, die carriers consisting of two members 2 and (3) (see Fig. 12, not shown), one of which 2, is movable in the direction of the legs of the staples, and each of which is adapted to hold a die (21) (see Fig. 6, not shown), with a depression aligned with the respective staple legs, means to move the die carrier in the direction of the legs, an ejector to drive the staple legs through bore fragments to cause the staple legs to bend around in the depression. The staple magazine 8 is slidably attached to a bearing stock 1 by means of locating projections 14 on the magazine under flanges 15 of the stock 1, and retained in position by a springed arm 10 and slider 11 attached to a hollow staple carrier 6. The staple carrier is threaded at one end and may be moved longitudinally by a threaded screw 17. A staple ejector 12 with a head 13 passes through the staple carrier, abuts the magazine 8, and may be actuated by a shaft 19 attached to a handle bar 20. The movable die carrier member 2 is reciprocable in guide ways in the stock and is operable by a thumb screw 5. Die members 22 and 23 fixed in position on members 2 and 3 by means of the engagement of a pin on a spring plate 2 with a projection 25 on the members 2 and 3. The depressions of the die members are arcuate in shape, Fig. 7 (not shown) and the mouths of the depressions (24) are wider at the outer ends where the staples are received, Fig. 3 (not shown), or are wider at both ends of the depression than in the centre, Figs. 6 and 9 (not shown). Dies may be used with inclined bores contacting surfaces Figs. 5a-e (not shown) depending on the shape of the bores to be stapled, and provision may be made in the die for applying a single staple to a bore Fig. 6 (not shown) or several staples simultaneously Fig. 9 (not shown) in which each die member has several depressions. Lugs 32 are provided in the die 21 to locate the bore to be stapled, which is then wedged in between the staple magazine 8 and the fixed member of the die by turning screw 17 to move the staple carrier 6, ejector and magazine towards the die. The movable member 2 is then moved into engagement with the bore and staples may then be applied by the ejectors.
Patent GB-654931-A (GB)
Title: Process for the manufacture of photographic outline images and material for use therewith
Inventor: ROTT ANDRE
IPC: G03F1/54
Filed: 1946-08-20
Abstract: 654,931. Photographic outline images especially for photomechanical purposes; photographic materials. GEVAERT PHOTO-PRODUCTEN N.V. Aug. 20, 1946, No. 24779. [Class 98 (ii)] Outline images e are produced photographically by exposing a two-layer silver halide emulsion material, the upper layer u being separable, developing to produce negative images a, b, in the two layers u, l, forming a positive image of said negative image in at least the lower layer l, followed by removing the upper layer either before or after fixing the positive images. The positive image d in the lower layer may be formed either simultaneously with development of the negative images a, b by diffusion development, as described in Specifications 614,155, 654,630, [Group IV (b)], and 654,631, or by subsequently re-exposing the developed negative with diffuse light to yield on developing registered positive images c, d in both layers. The lower layer of the two-layer material used when diffusion development is employed contains development nucleii of the kind employed in physical development processes around which the unexposed silver halide which differs from the upper layer crystallizes as colloidal silver. The upper layer may include sodium bisulphite so as to be less hardened than the lower layer when this is treated with formaldehyde, and hence remains soluble in warm water, or the upper and lower layers may be separated by a stripping layer. Screened outline images may be produced by exposing beneath a screen the upper layer only of the material either before or after the imagewise exposure by a suitable choice of exposure time; or by sensitizing the upper layer only to green light and printing the screen with green light; and treating the combined negative images as before so that on removing the upper layer u by dissolving it in warm water or stripping it a screened contour image e, g, Fig. 6, remains in the hardened lower layer.
Patent GB-348975-A (GB)
Title: Improvements relating to valves
IPC: F16K3/36
Filed: 1930-08-20
Abstract: 348,975. Lubricating valves. LEACH, R. W. and BATEMAN, W. H., of Audley Engineering Co., Newport, Shropshire. Aug. 20,1930, No. 24881. [Class 12 (ii).] A lubricated rotary disc valve comprises resilient means, such as the spring i, for holding the disc a to its seating c, an annular groove o in the working face of the disc containing a toothed actuating wheel p, and a recess in the casing containing an operating pinion r. The recess is open to a lubricant chamber q having a screw x or other pressure feed, and containing a spring- pressed piston y which maintains pressure on the lubricant.
Patent GB-408304-A (GB)
Title: Improvements in or relating to the manufacture of hydration products of olefines
IPC: C07C29/04
Filed: 1932-09-07
Abstract: The hydration of olefines, for instance the production of alcohol or ether from ethylene, is effected by treating the olefine with liquid water in the presence of salts of weak acids which are capable of existing in anhydrous and hydrated forms or in two or more hydrated forms.  Suitable salts are borax, sodium potassium molybdate, sodium and calcium tungstates, sodium orthovanadate, calcium metavanadate, barium metantimonate, and trisodium arsenate.  The reaction may be effected at temperatures above 100 DEG  C. under sufficient pressure to keep the water in the liquid form.  Other olefines such as propylene and butylene may be treated similarly.
Patent GB-639592-A (GB)
Title: Improvements in or relating to resinous compositions, particularly adapted for use as a mould
IPC: C08K5/098
Filed: 1947-09-12
Abstract: A resinous composition comprises a polymer made by polymerizing a monomeric material comprising predominantly a chloroethylene having one or two chlorine atoms on one only of the carbon atoms, from 150 to 350, preferably 200-300, parts by weight of a plasticizer therefor, and from 10-75, preferably 20-50, parts by weight of a lead salt of an organic carboxylic acid per 100 parts by weight of polymer.  The monomeric material may be vinyl chloride, vinylidene chloride, mixtures of vinyl chloride and vinylidene chloride, or mixtures of one or both of these with smaller amounts of another monomer such as vinyl bromide, vinyl acetate, vinyl propionate, vinyl butyrate, vinyl chloroacetate, vinylidene bromide, vinylidene chlorofluoride, dimethyl fumarate, dimethyl maleate, diethyl maleate, dibutyl maleate, diethyl chloromaleate, methyl acrylate, methyl methacrylate and methyl ethacrylate.  The plasticizer may be tricresyl phosphate, dibutyl phthalate, butyl phthalyl butyl glycollate, di-2-ethyl hexyl phthalate, dibutyl sebacate, undecyl tetrahydronaphthyl ketone, a chlorinated or nitrated aromatic compound, an aromatic or long-chain aliphatic ester, ether or ketone, or an ester of an inorganic acid.  The lead salt, which is preferably a salt of a long-chain fatty acid containing from 10 to 20 carbon atoms, may be lead acetate, benzoate, citrate, oxalate, laurate, linoleate, palmitate or stearate.  Pigments, fillers and dyes may be incorporated.  The composition is particularly suitable for making moulds in which plaster can be cast.
Patent GB-734913-A (GB)
Title: Thermoplastic terpolymers
IPC: C08F212/10
Filed: 1953-09-10
Abstract: <PICT:0734913/IV (a)/1> Terpolymers are produced by mass polymerizing a mixture of 55 to 72 mol. per cent of styrene with 1 to 30 mol. per cent of acrylic acid and 9 to 27 mol. per cent of acrylonitrile, in the relative proportions defined by the quadrilateral ABCD in the Figure. Polymerization may be carried out with the aid of a peroxy catalyst such as di(tert. butyl) peroxide, and may be effected isothermally, or by a stepwise process starting at 90 DEG  C. and finishing at 180 DEG  C.  The terpolymers produced are clear and may be used for moulding.
Patent GB-518767-A (GB)
Title: Regulation of constant pressure gas turbine installations particularly for the propulsion of ships
Filed: 1938-08-26
Abstract: 518,767. Gas turbines; servo-motors. AKT.-GES. BROWN, BOVERI, & CIE. Aug. 26, 1938, No. 25092. Convention date, Sept. 24, 1937. [Class 110 (iii)] [Also in Group XXIX] In a gas turbine plant, the power distribution between the compressor turbine 4 and the useful power turbine 5 is regulated by means of angularly adjustable guide blades 11 provided in at least the initial'stages of the compressor turbine. Similar blades may be used in the effective power turbine also, or a simple throttle valve 13 may be provided. A regulator, 8, 9, 12 maintains the gas temperature leaving the combustion chamber 2 constant and at such a level that the output of the turbine 4 equals the input to the compressor irrespective of the air inlet temperature. If the gas temperature increases or decreases, the thermostat 8 will, by 'acting on the guide blades 11 by means of the leak-off 9 and servomotor 10, adjust the air supply to restore the balance. If the compressor air inlet temperature falls, the air delivered by the compressor will be in excess and the gas temperature will fall. The thermostat responds and closes the guide blades of the. compressor turbine and so reduces the power developed for compression. An adjustable regulator 16 acting on the piston 17a can temporarily increase the ratio of fuel to air and thereby increase the gas temperature leaving the combustion chamber. The increase in gas temperature is followed by an increase-in the speed of the compressor turbine, a lowering of the temperature in the combustion chamber, and an increase in the pressure, therein. This increase in pressure increases the output of the effective power turbine. A motor 24 is used for starting purposes. A bye-pass valve 18 is controlled by an emergency governor 19.
Patent GB-1269714-A (GB)
Title: Paper-insulated electrical conductors
IPC: H01B13/12
Filed: 1969-05-16
Abstract: 1,269,714. Electric conductors and insulation. GENERAL CABLE CORP. 16 May, 1969 [16 May, 1968], No. 25092/69. Heading H1A. A method of making paper-insulated conductors, comprises embedding a conductor 10 in a mass of the pulp at 26 with a flap extending from at least one side of the conductor, squeezing the coated pulp at 46 to form a wet paper strip and wrapping the flaps (32, 34) (Fig. 3, not shown), at 56 around the conductor to form a tube with a single seam. One of the flaps (34) is made substantially longer than the other (32) and some of the fibres on that surface of the flap forming the outside of the insulation tube are refloated by applying water at 64. The refloated fibres may be oriented helically across the seam to close it. Some intermeshing of the fibres, on the interfaces of the flap and the insulation below takes place at furnace 80. A dye could be added to water at 64 to colour the outside of the tube.
Patent GB-902862-A (GB)
Title: Improvement in helicopters
IPC: B64C27/12
Filed: 1960-07-19
Abstract: 902,862. Regulating. HILLER AIRCRAFT CORPORATION. July 19, 1960 [July 20, 1959], No. 25100/60. Class 7(6) [Also in Group XXXIII] A governor 24 for a helicopter internalcombustion engine 6, which drives the main rotor 4 through a free wheel clutch 10, is driven from the rotor 4 and controls a throttle valve 34 which is additional to the manually operated throttle valve 15. The engine 6 drives the rotor 4 through a reduction gear 7 on a shaft 9 which also drives the tail rotor shaft 12 and a flexible shaft 21 driving the centrifugal governor 24. The throttle 15 is controlled by a twist grip 18 on the pitch control lever 19.
Patent GB-462542-A (GB)
Title: Improvements in or relating to elastic bushings
IPC: F16C11/04
Filed: 1935-09-10
Abstract: 462,542. Resilient mountings. GIRLING, A. H. G. Sept. 10, 1935, No. 25148. [Class 108 (iii)] [Also in Group XXV] Relates to elastic bushings of the kind comprising a sleeve of rubber or the like interposed between rigid inner and outer members mounted respectively on two parts, e.g. an internalcombustion engine and its supporting frame. According to the invention, the bushing comprises a rubber sleeve C vulcanized to inner and outer tubular supporting members A, B, formed of semi-elastic material which is penetrated by the material of the sleeve, the inner surface at least of the inner tubular member A being formed of wire mesh and being soldered or otherwise rigidly secured to a rigid metal member D lying within it. The outer tubular member B may be formed of woven fabric, as shown, or of wire mesh, or partly of each and the inner tubular member may be wholly of wire mesh, as shown, or partly of wire mesh and partly of fabric. One or both ends of the elastic sleeve may be coned as shown.
Patent GB-986721-A (GB)
Title: Process for the manufacture of single-side lacquered paper
IPC: D21H25/14
Filed: 1963-06-25
Abstract: 986,721. Single side lacquered paper. J. W. RIDDING. (Licentia Patent-Verwaltungs G.m.b.H.). June 25, 1963, No. 25287/63. Heading B2E. A process for the manufacture of single-side lacquered paper, with improved penetration of the lacquer, is characterized by the feature that, immediately after the application of the lacquer, which consists essentially of epoxy resin or a polyester resin dissolved in toluene, xylene or cresol, the paper is drawn over a smooth heated metal surface with the unlacquered side of the paper in contact therewith and then passed through a drying chamber. The smooth heated metal surface may be in the form of an internally heated cylinder. As shown, paper web from supply roll 1 is led over guide roller 2 and lacquered in arrangement 3. Excessive lacquer is removed by rollers 4, and the lacquered web drawn over heated plate 5 prior to passage through drying arrangement 6. The lacquered paper may be made up into laminated paper tubes having low water-absorption.
Patent GB-504026-A (GB)
Title: Improvements in or relating to the polishing of nickel applicable also to the production of decorative or other designs upon the surface
IPC: C25F3/22
Filed: 1937-09-17
Abstract: 504,026. Brightening nickel by electrolytic treatment. PRISTON, H. R., HOTHERSALL, A. W., and HAMMOND, R. A. F. Sept. 17, 1937, No. 25313. [Class 41] A bright surface is produced on a nickel or nickel-plated article by anodic treatment in sulphuric acid of more than 60 per cent concentration, smoothing being effected by selective attack on raised points. Formation of streaks is prevented by agitation of the electrolyte or of the work. It may also be prevented by addition to the electrolyte of one of the following substances which serve to reduce the surface tension or viscosity of the anode film or to reduce the size of the gas bubbles : (i) a sulphonate of the aromatic hydrocarbons such as sodium toluene or sodium benzene monosulphate (e.g. 2-4 gms per litre); (ii) glycerine (e.g. 200 ml per litre) ; (iii) nitric acid (e.g. 40 ml per litre); (iv) chromic acid (sufficient to saturate the solution). The treatment is preferably applied to nickel platings of small grain size deposited from the following baths : (i) nickel sulphate NiSO 4 .7H 2 O 120 gms., ammonium sulphate 21 gms., potassium chloride 8 gms., water to 1 litre ; (ii) nickel sulphate NiSO 4 .7H 2 O 240 gms., nickel chloride NiCl 2 .6H 2 O 4.5 gms., sodium formate 35 gms., water to 1 litre. The surface may be treated locally to produce a design by application of a resist.
Patent GB-1131767-A (GB)
Title: Discharge means for silos
IPC: B65G65/48
Filed: 1966-06-07
Abstract: 1,131,767. Hoppers. L. & C. STEINMULLER G.m.b.H. 7 June, 1966 [3 Aug., 1965], No. 25359/66. Heading B8S. Discharge means for discharging cohesivepulverulent bulk materials from a silo 2, Fig. 1, comprises a hopper 1 connected at its top to the silo and at its bottom to a ring 3, the latter having an annular groove 4 engaged by rollers 5 carried by a driving pulley 6 on a rotor 7, the roller 5 being arranged eccentrically around the axis of the rotor 7 whereby rotation of the rotor imparts oscillating movement to the outlet end of the hopper 1. As described the hopper is flexible but may be rigid and be connected to the silo by a flexible intermediate piece. The rotor 7 is mounted in roller guides 8, 9 and comprises an outer tube and an inner tube 12 connected eccentrically to the outer tube by pins 11 and in alignment with a collar 13 on the ring 3. The leading end of the outer tube is inset so that any material which passes through the gap between the inner tube 12 and the collar 13 will not flow out through the gap 15 between the outer tube and the collar but will flow down the outer tube to rejoin the main flow. The inner tube may be replaced by a self-cleaning bar grid.