baber/WOPTO huggingface dataset:
Patent GB-1343496-A (GB)
Title: Photographic silver halide emulsions
IPC: G03C1/485
Filed: 1971-05-14
Abstract: 1343496 Direct positive photographic emulsions EASTMAN KODAK CO 14 May 1971 [18 May 1970] 14936/71 Heading G2C [Also in Division C3] A direct-positive emulsion comprises silver halide grains fogged with a reducing agent e.g. stannous chloride, hydrazine, thiourea dioxide and tetra (hydroxy-methyl) phosphonium chloride, and a metal more electropositive than silver e.g. Au, Rh, Pt, Pd and Ir, and having adsorbed to the grains, as an electron acceptor, a cyanine dye comprising two nuclei selected from nitrobenzothiazole and nitronaphtho-thiazole  joined via their respective 2-carbon atoms by a monomethina linkage. Examples of the dyes given are 3 1 3<SP>1</SP> - diethyl - 6 1 6<SP>1</SP> - dinitrothiacyanine chloride and an hydro - 6 1 6<SP>1</SP> - dinitro - 3 1 3<SP>1</SP> - di (3-sulphopropyl) thiacyanine hydroxide, sodium salt. The emulsion may also comprise an alkali permeable synthetic polymer derived from the following monomers (a) an alkyl acrylate (b) acrylic acid or an acrylate sulphoester and (c) an acrylic monomer having an active methylene group in a side chain. Specified polymers include copoly (ethyl acrylate - acrylic acid - 2- acetoacetoxy ethyl methacrylate), copoly (butyl - or methyl-acrylate - sodium acryloyloxy propane sulphonate - 2 (acetoacetoxy) ethyl methacrylate and copoly (butyl acrylate - acrylic acid - 2- cyanoacetoxyethyl methacrylate).
Patent GB-274618-A (GB)
Title: Improvements in or relating to the mud guards of motor vehicles
IPC: B62D25/18
Filed: 1926-06-14
Abstract: 274,618. Panzetta, H., and Warwick, H. June 14, 1926. Mud-guards.-The outer side edge of a vehicle mud-guard is provided with a protective strip of indiarubber so formed with a bead or the like, or so stiffened as by a deformable insertion of canvas, metal, &c., as to engage a recess or a bead respectively, formed on the edge of the guard. In the forms shown in Figs. 2 and 6, the strip 1 is beaded at 2 to engage a groove formed in the edge of the guard 3, the edge of which may be turned inwardly as at 6, Fig. 6. In the form shown in Fig. 4, the strip is provided with an insertion 4 of lead, copper, or other metal so that it can be bent over the beaded edge 5 of the guard 3.
Patent GB-237228-A (GB)
Title: Improvements in processes for producing acetone and butyl alcohol
IPC: C12P7/28
Filed: 1925-06-09
Abstract: Acetone and butyl alcohol are produced by fermenting carbohydrate or like material with an anaerobic bacillus, called B. butylaceticum, isolated as described below and characterized in that it has rounded ends, forms large resistant spores, and does not readily liquefy nutrient gelatine.  To isolate the bacillus a substance such as grain or soil is added to sterile boiling water or heated in water to destroy non-sporing organisms and organisms forming only slightly resistant spores, whereafter an anaerobic culture of the surviving organisms is prepared by any of the usual methods.  In use, a quantity of the culture is transferred to the hot, sterilized, fermentable substance, such as a mash of potato, rice, or maize, and the mixture incubated at 35-38 DEG  C. for about 24 hours.  During the course of the fermentation the mash first becomes acid, with evolution of carbon dioxide and hydrogen, whereafter the acidity declines and acetone, butyl alcohol, &c., are formed.  The fermented mash may be used to prepare further cultures or to inoculate further quantities of the fermentable materials.  The products are recovered by distillation.
Patent GB-841050-A (GB)
Title: Improvements in rollers for use in the textile trade
Inventor: SMITH JOHN NORMAN
IPC: D06C3/00
Filed: 1956-05-15
Abstract: 841,050. Feeding webs. PHILLIPS & SONS (MANCHESTER) Ltd. May 13, 1957 [May 15, 1956], No. 15047/56. Class 100(1) A pair of rollers for use in feeding webs of textiles, comprises a pair of interengaging longitudinally fluted rollers between which the web passes under tension, thereby preventing lateral travel of the web. As shown, flutes al are moulded around a spindle and may be of natural rubber, synthetic rubber or other resilient material. The rollers are driven through gearing.
Patent GB-146092-A (GB)
Title: Process of fabrication of cellulose esters
IPC: C08B3/06
Filed: 1920-06-03
Abstract: According to the parent case, cellulose is before conversion into the acetate or other fatty acid ester subjected to preliminary treatment with small quantities of acetic anhydride in the presence of a catalyzer diluted with glacial acetic acid, in an example with 5 per cent sulphuric acid calculated on the cellulose, at 30 DEG  C.  This preliminary treatment is now attenuated in two directions; by reducing the proportion of sulphuric acid below 5 per cent and down to 3 per cent, and by working at a temperature below 30 DEG  C. and down to 25 DEG  C.  Thus, 100 parts of cellulose are treated with 50 parts of acetic anhydride, 5 or 3 parts of sulphuric acid, and 610 parts of glacial acetic acid at a temperature of 25 or 30 DEG  C. respectively for 3-4 hours; 250 parts of acetic anhydride are then added, and the mixture maintained at 40 DEG  C. for 1-2 hours to effect esterification.  The esters may be separated by precipitation p  with water, or they may be converted by partial saponification into esters having different solubilities; the precipitated esters are insoluble in choloroform, whereas some of the saponified esters are insoluble in chloroform and soluble in acetone, and others soluble in ethyl acetate.
Patent GB-1166924-A (GB)
Title: A fixing and adjusting device for constructional elements
IPC: E04B2/94
Filed: 1967-04-03
Abstract: 1,166,924. Curtain walls. HEINZ SCHURMANN & CO. 3 April, 1967 [30 April, l966] No. 15116/67. Heading E1W. [Alto in Division F2] A fixing and adjusting .device for securing facing units 2 to a wall 15 comprises a bracket 5 with a screw threaded bore 6 through which passes a screw 7 having an un-threaded end portion 9 projecting into a box section 8 through an obliquely running longitudinal slot 10, and a seating 11 comprising an angle iron 12 and a Z-section 13 secured to the wall and in which the box section 8 is slidably mounted. A cover plate 18 to fix the .screw 7 laterally relative to the box section may be welded to the box section. A U-shaped bracket 19 having screws 22, 23 through its side arms may be mounted on the vertical bar of the angle iron, the bracket 5 being engaged by the screw heads to move the panel parallel to the wall. Each facing unit has two rows of three brackets. The seating, may be formed as a U-shaped member with. a plate sliding in grooves therein. The adjusting plate may be formed as a casting with an obliquely running longitudinal slot.
Patent GB-217934-A (GB)
Title: An improved process for obtaining solid matter from a solution, suspension or emulsion thereof
IPC: B01D1/18
Filed: 1924-06-23
Abstract: 217,934. Nafilyan, G. Z. June 22, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray evaporators.-Dry products are obtained from milk, blood, eggs, fish and meat extracts, fruit juice, solutions of organic or inorganic substances &c. by atomizing the liquid into a current of air at ordinary temperatures, or at temperatures up to about blood heat. Liquid is supplied by a pipe e to an atomizer d supplied with air by a pipe f, and contained in a chamber g through which a current of air is 'drawn through an inlet a by a fan i. The dry product is withdrawn by a belt k. The outgoing air passes through a filter h. A solvent such as ether, alcohol, a hydrocarbon or ethereal oil may be recovered by condensation.
Patent GB-692486-A (GB)
Title: Improvements in or relating to metallic articles produced by powder metallurgy methods
Inventor: GOLDSCHMIDT HELMUT JULIUS
IPC: C22C1/05
Filed: 1950-06-17
Abstract: 692,486. Powder metallurgy. BIRMING- HAM SMALL ARMS CO., Ltd. June 12, 1951 [June 17, 1950], No. 15191/50. Class 83 (iv). In the manufacture of heat-resisting alloys or articles such as cutting-tools, tips therefor, boring tools, porous bearing members and filters, by powder metallurgy, the raw material comprises a powder of iron-tungsten carbide and/or a powder of iron-molybdenum carbide either with or without a binder and is compressed at between 10-50 tons per square inch and sintered at between 110‹-1500‹ C. for at least one hour. These carbides may be used without a binder, but if desired, a powder of cobalt, nickel, iron or an alloy such as stainless steel may be included as a binder. If tungsten carbide is used alone, it should be compacted at 50 tons per square inch and sintered at 1300‹ C. If mixed with 5 per cent cobalt it should be pressed at 30 or 20 tons per square inch and sintered at 1300‹ or 1200‹ C. respectively. If mixed with 5 per cent iron, it should be pressed at 50 tons per square inch and sintered at 1200‹ C. The iron-tungsten and iron molybdenum carbides may be chemically prepared or in the case of the former, may be extracted, as by electrolysis, from high speed steel scrap or other steel rich in tungsten and carbon. The sintered iron-tungsten carbide can be used as the body portion of an article having a surface layer of hard metal of the tungsten carbide-titanium carbide-cobalt type Specification 668,847 is referred to.
Patent GB-351675-A (GB)
Title: Wireless signalling system
IPC: H04B3/60
Filed: 1930-05-19
Abstract: 351,675. Wireless signalling. APTER, R. F., 356, Pine Avenue West, Montreal, Canada. May 19, 1930, No. 15325. Drawings to Specification. [Class 40 (v).] A receiving set in the hoist-room of a mine is connected to a rubber-covered aerial wire cleated to the walls of the shaft and a tunnel leading therefrom. A spark transmitter is provided in the cage connected to an aerial down the outside of the latter, and a portable spark transmitter provided with harness is provided for use in the tunnel.
Patent GB-890370-A (GB)
Title: Improvements in or relating to cellular lighting structures
IPC: F21V11/06
Filed: 1959-02-04
Abstract: 890,370. Louvres for overhead lighting. BLITZER, B. Feb. 4, 1959 [Feb. 10, 1958], No. 15346/61. Divided out of 890,369. Class 75(4) A cellular light transmitting and diffusing structure comprises a plurality of adjacent segments each comprising a plurality of tubular cells, the segments being united by clips embracing the upper and lower edges of edge cells of adjacent segments. Preferably the edges of the segments are cut away so as to be capable of forming lap joints with adjacent segments. In the form shown, the segments 10a, 10b each consist of a plurality of circular cells having outwardly tapering walls and a central lip 14a and are united by a C-shaped clip 22a, the ends of which embrace the outer edges of the walls of adjacent cells. The clip has central enlargements which fit on opposite sides of the lip 14a and the upper end may have a projection to facilitate manipulation. The edge cells may be cut away to half height as at 15a, 15b and overlapped, the clips 22a engaging adjacent edges on different segments.
Patent GB-824550-A (GB)
Title: Process for the production of polyvinyl alcohol yarns and films
IPC: D01F6/14
Filed: 1958-05-13
Abstract: Polyvinyl alcohol yarns and films are made by saponifying yarns and films of polyvinyl esters (while preserving their structure) with a solution containing at least 0.7 mol. per litre of an alkali metal alcoholate in methanol, the molecular weight of the polyvinyl ester being such that a 5% (by weight) solution thereof in a mixture of 15 volumes of 95% (by volume) alcohol and 85 volumes of ethyl acetate at 20 DEG  C. has a viscosity of at least 8 centipoises.  The saponification is preferably carried out by passing the yarns or films first thriugh a tank containing saponifying solution at room temperature, e.g. 20-25 DEG C., and then through a second tank containing saponifying solution at a higher temperature, preferably 40-70 DEG  C.  The yarns or films are preferably subjected to a tension capable of producing molecular orientation during saponification.  The water-solubility of the polyvinyl alcohol yarns and films obtained may be reduced either by fixing some of the hydroxyl groups by means of an aldehyde, e.g. formaldehyde, or by producing cross-linking therein by one or more of the following: heat, reaction with polyfunctional aldehydes, e.g. glyoxal, or with polyisocyanates or by passage through an alcoholic solution of an alcoholate of a polyvalent metal, e.g. aluminium ethylate.  The only polyvinyl ester specified is PV acetate, through it is mentioned that copolymers may be used.  Alkali metal alcoholates specified are Na Li and K methylates; ethylates, propylates and butylates are mentioned.
Patent GB-462369-A (GB)
Title: Improvements in jewels or other articles adapted to be fixed in hair, on a fur, a fringe, and the like
IPC: A44C1/00
Filed: 1935-05-27
Abstract: 462,369. Jewellery. CARTIER SOC. ANON. May 27, 1935, Nos. 15443, 15444, 15445, and 15446. Void. Convention dates, June 4, 1934, July 27, 1934, Sept. 18, 1934, and Jan. 15, 1935. [Class 43] [Also in Group XXV] A clip for securing jewellery &c. to the hair, furs, &c. has jaws disposed to exert a brushing action parallel to the skin during the closing movement and grip the hair &c. near the roots. Figs. 4-6 show a setting b for jewel a, the setting having a pair of U-shaped jaw members d, e with one limb d<2>, e<2> of each pivoted in bearings f as shown. The other limbs d<1>, e<1> co-operate with a fixed abutment c under the action of torsion springs h. The jaws are opened by pressing together the outer arms k<1>, l<1> of a pair of levers pivoted at m. In a modification abutment c is omitted and the U-shaped jaws are coaxially pivoted to cooperate with one another. One jaw may be of trough form with a closed end to provide a recess in which the other jaw nests. In a further modification a single U-shaped jaw is used, co-operating with a fixed abutment on the setting. Figs. 19, 21 show a clip in lady-bird form comprising members 1, 2 pivoted together on an axis 3 perpendicular to the skin, members 1, 2 carry depending jaws 5, 6 of zigzag form and nesting together. The clip is held in open and closed positions by a blade-spring 8 acting on flats near the pivot 3 and is manipulated by projections 4. Other forms of clips are described comprising a scissor-like arrangement of pivoted arms carrying at their outer ends cups of hemispherical or conical form nesting together.
Patent GB-700207-A (GB)
Title: Improvements relating to the setting-out of builders' work
IPC: E04G21/18
Filed: 1951-06-30
Abstract: 700,207. Device for setting-out builders' work. MITCHELL, W. P. June 30, 1952 [June 30, 1951], No. 15568/51. Class 20 (2) The setting-out of ground prior to the erection of a building to indicate foundations and for subsequent use by bricklayers is effected by a device comprising two metal ground-engaging spikes A, Fig. 1, rigidly connected by two spaced parallel bars C or by a single longitudinallyslotted bar, a hook or, as shown, channel members F being slidably mounted on the bars or bar by means of a bolt G, Fig. 2, located in the slot to form an anchorage for a guide-line. As shown two -devices are hingedly connected and are in the operative position at right-angles defined by a rule-joint at the hinged ends. The bolt G, Fig. 2, engages an internally threaded guide-line carrier E which clamps the channel members F on the bars C. The bars may be telescopically arranged to permit adjustment of lengths. Four hinged devices each as shown in Fig. 1 are used in setting out the building.
Patent GB-827484-A (GB)
Title: Devices for coupling or locating pipes
Inventor: BILLINGER BRIAN ARTHUR
IPC: F16L5/00
Filed: 1957-05-17
Abstract: 827,484. Pipe couplings. LUCAS (INDUSTRIES) Ltd., J. May 15, 1958 [May 17, 1957], No. 15713/57. Class 99(1). A means for coupling pipes or for connecting a circular burner or tube into a sheet metal combustion chamber, comprises an annular component a, Fig. 1, inserted on or into a pipe, having a flange e which has lateral freedom of movement in the annular groove formed between two interconnected members i and f. In Fig. 1 for coupling two pipes b, g, the member i is secured, e.g. by welding, to a flange h on the member f and may be positioned by a spacer h<SP>1</SP>. The spigot a fits into or over pipe b and the member f is integral with the second pipe g. In another embodiment the annular component k, Fig. 2, fits over a burner tube m and has a flange n which has free lateral movement in the groove. formed between members p and q secured to the. combustion chamber wall o. Slots S and the annular passage t allow cooling air to pass from the chamber enclosed by jacket r.
Patent GB-708282-A (GB)
Title: Process for the production of fibrous material having improved heat resistance
IPC: D06M13/402
Filed: 1951-07-03
Abstract: Cellulose acetylated to contain from two-thirds to one and two-thirds acetyl groups per glucose residue is treated with an aqueous solution of dicyandiamide to improve its heat resistance. Cotton, wood-pulp, regenerated cellulose and paper may be acetylated and treated.  A 0.1 to 5.0 per cent. solution of dicyandiamide may be used and the impregnated material may be pressed or centrifuged to retain 0.1 to 3 per cent. of dicyandiamide calculated on the weight of the cellulose acetate. The treated material may be dried in the usual manner.  In an example a cotton fabric acetylated according to example 2 of Specification 280,493, [Class 15 (ii)], is impregnated with a 1 per cent. aqueous solution of dicyandiamide for 5 minutes at 50 DEG C., squeezed to 100 per cent. pick-up and dried at 100 to 105 DEG C. Specification 525,265 also is referred to.
Patent GB-1021483-A (GB)
Title: Method and apparatus for locating and sealing pipe leaks
Inventor: STEINSBERGER JACK CHARLES
IPC: F16L55/1645
Filed: 1964-04-16
Abstract: 1,021,483. Indicating leaks in pipes. PENETRYN SYSTEM Inc. April 16, 1964, No.15830/64. Heading G1S. [Also in Division F2] A method of detecting and measuring the location of a fault in underground conduits 10, 11, 12 comprises passing therethrough a device 20 mounting a television camera 26 with its optical axes directed along the axis of the conduit, simultaneously observing the conduit walls and a target 27 carried a known, fixed distance ahead of the camera, and aligning the target with the fault by means of the transmitted image. The device, which is adapted to inject a settable sealant into the fault, is then advanced said fixed distance to position it at the fault.
Patent GB-902001-A (GB)
Title: Improvements in or relating to cattle pens and/or cattle pen doors
IPC: A01K1/06
Filed: 1957-05-18
Abstract: 902,001. Cattle holding devices. TAYLOR, J. H. Aug. 15, 1958 [May 18, 1957; Nov. 25, 1957], Nos. 15860/57 and 36595/57. Class 81 (2). Means for holding an animal in a pen comprises a gripping member movably mounted on the pen or door frame which grips part of the animal, such as the neck, by holding it against an edge on the door, remote from the hinge. Thus the member may be an arm 18 pivoted to the door frame at 19 so as to be capable of holding the neck of the animal against the vertical edge 16 of a cut-away portion of the door, the latter being hinged to its frame at 11. The movable member may be slidable instead of pivoted and, if desired, the co-operating edge on the door may itself be movable so as further to restrict the size of the available aperture. In other forms, the movable member is mounted in the side wall of the pen and co-operates with the adjacent edge of the door, which is in the end of the pen and, alternatively, the movable member is itself mounted on vertical pivots in the manner of a door. Specification 747,510 is referred to.
Patent GB-585179-A (GB)
Title: Photopolymerisation process
IPC: C08F2/46
Filed: 1944-08-21
Abstract: Photopolymerizable compounds containing at least one CH2=C< group directly attached to a halogen, -C=O, -CN, -C­C-, -O-or aryl group, mixtures thereof and mixtures thereof with other unsaturated compounds known to be photopolymerisable in the presence of these compounds, are polymerized by irradiation with light of wave length 2500-5000   in the presence from 0.01-5.0 per cent by weight of an organic disulphide, soluble in the photopolymerizable compound and being free from nitro, hydroxyl, and primary amino groups directly attached to an aromatic carbon atom.  The process may be carried out in solution, emulsion or in granular systems, the preferred process being carried out in the presence of a mutual solvent. Specified photopolymerizable compounds are vinyl esters, e.g. acetate, propionate, vinyl halides, e.g. chloride, vinyl ketones, e.g. methyl vinyl ketone, vinyl ethers, e.g. vinyl ethyl ether, acrylo-nitrile, methacrylonitrile, esters of acrylic acid, e.g. methyl acrylate and ethylene diacrylate, styrene, vinyl ethinyl carbinol, methacrylic acid esters, e.g. methyl and allyl methacrylates and ethylene dimethacrylate, vinylidene chloride, esters of alpha-substituted acrylic acids, e.g. methyl alpha-chloracrylate, and chloroprene. Organic disulphides include di-n-butyl, di-n-octyl, dibenzyl, diphenyl, ditolyl, benzoyl, diacetyl, dilauroyl, dibornyl, thiuram, e.g. N-N1-dipentamethylene-thiuram disulphides and mixed disulphides containing radicals from any of the above.  If desired organic peroxide polymerization catalysts, e.g. benzoyl, lauroyl or diethyl peroxides, may also be added to the polymerization mixture.  The products are useful as moulding powders, adhesives, coating and impregnating agents, transparent enclosures and safety glass interlayers, also when the process is carried out in a mould optical lenses and prisms may be obtained.
Patent GB-445503-A (GB)
Title: Improvements relating to motor fuels
IPC: C10L1/02
Filed: 1935-06-04
Abstract: Hydrocarbon motor fuel is improved by blending therewith a branched ether R.O.R.<1>.  A lead-containing anti-knock agent, e.g. 1ec. of lead-tetra-ethyl or -methyl per U.S. gallon of fuel may be added. Suitably the fuel is composed of 5, 10, 15, 30, or 50 per cent of isopropyl ether, and gasoline.  Other ethers specified are tertiary butyl ether, methyl tertiary butyl ether, methyl tertiary amyl ether, and ethers containing an aryl radical.
Patent GB-680099-A (GB)
Title: Electric cell
IPC: H01M6/04
Filed: 1951-07-06
Abstract: 680,099. Batteries. O'CONNOR, F. July 6, 1951, No. 16138/51. Class 53. A primary cell comprises an electrode 3 of amalgamated aluminium in a solution 2 of the nitrate of an alkaline earth metal, for example barium nitrate or strontium nitrate or a mixture of the two nitrates. Sodium chloride and acetic acid may also be added to the electrolyte. The second electrode 5 may consist of antimony which may be mixed with lead. The aluminium electrode may be amalgamated by contact with a globule of mercury 8 in the electrolyte. The container 1 may be of insulating material or of metal and may constitute one of the electrodes.
Patent GB-1178155-A (GB)
Title: Copying Lathe
IPC: B23Q35/18
Filed: 1967-04-10
Abstract: 1,178,155. Copying lathes. OERLIKONBUHRLE HOLDING A.G. 10 April, 1967 [15 April, 1966], No. 16381/67. Heading B3T. A copying lathe comprises a slide 5 mounted on a dovetailed guide 2 on a saddle 1, an hydraulic copying cylinder 9 on the slide 5 at one side of a housing 7, 8 therefor, the cylinder 9 being mounted above one of two adjustable gibs 3, 4 for the dovetail 2, and a stop drum 11 and distributing slide valve 10 disposed parallel to the cylinder 9 at the other side of the housing, the line of action of the hydraulic cylinder 9 passing directly above a point S at which the frictional forces on the gibs during cutting are in balance so that any tendency to jamming of the slide on the guide is eliminated. A lever 29 mounted pivotally on trunnions 19, 20 on the cylinder 7 carries a follower 30 which contacts the template 31, a pin 25 which controls the valve 10 and a pin 23 which displaces the stop drum 11. The latter has a stop 12 engageable with a counter-stop 18 on a rod 28 fixed to the lathe saddle, the function of which is to limit the depth of the first rough cut in following the template.