baber/WOPTO huggingface dataset:
Patent GB-719574-A (GB)
Title: Improvements in or relating to new fluorocarbon acyl sulphuric acids and methods of making the same
Filed: 1952-04-24
Abstract: Aliphatic fluorocarbon acyl sulphuric acids of the formula <FORM:0719574/IV (b)/1> where Rf is an aliphatic saturated fluorocarbon group are produced by heating saturated fluorocarbon mono-carboxylic acids with sulphur trioxide.  The invention further comprises perfluoroalkyl acyl sulphuric acids having the formula <FORM:0719574/IV (b)/2> where n has a value of from 1 to 3.  In the general method a saturated fluorocarbon monocarboxylic acid is added to liquid sulphur trioxide and the mixture is heated, cooled and distilled in vacuo.  Perfluoroacetyl and perfluorobutyryl sulphuric acids are prepared by the general method.  Perfluoropropionyl sulphuric acid is also mentioned.  The fluorocarbon acyl sulphuric acids react vigorously with water and alcohol to form the corresponding perfluoroacids and esters respectively and sulphuric acid.  The fluorocarbon acyl sulphuric acids and the appropriate perfluoro acids react to form the corresponding acid anhydrides.  The perfluoroacyl sulphuric acid need not be isolated in the preparation of perfluoro acid anhydride.  Thus, an anhydride may be obtained by adding one mole of sulphur trioxide to two moles of the appropriate saturated fluorocarbon mono-carboxylic acid whilst cooling and then distilling the mixture.  A continuous process may be employed.
Patent GB-541888-A (GB)
Title: Improvements in or relating to the manufacture of felt-like materials
IPC: D04H1/54
Filed: 1940-06-14
Abstract: 541,888. Agglutinated fibrous materials. BRITISH CELANESE. Ltd. June 14, 1940, No. 10356. Convention date, June 24, 1939. [Class 140] Felt-like materials are made by subjecting a mixture of thermoplastic cellulose derivative and non-thermoplastic fibres to heat and pressure to cause the thermoplastic fibres to soften and bind the fibres together under such conditions that the cellulose derivative remains in the fibrous form. The thermoplastic fibres may be of cellulose esters, mixed esters or ethers and may contain plasticizers. They may be treated with an electrolyte prior to carding to reduce the building up of electrostatic charges, weighted with tin, tungsten, zinc or antimony compounds or curled or crinkled as described in Specifications 372,323 and 458,038, [both in Group IV]. Suitable non- thermoplastic fibres are cotton, regenerated cellulose or wool. The mixture of fibres may be carded to form a fleece-like web which is subjected to a temperature of 300F. and a pressure of 10001b. per square inch by calender rollers or platen presses. A plurality of superposed carded webs may be similarly treated.
Patent GB-1506281-A (GB)
Title: Turbomachine
IPC: F04D17/02
Filed: 1975-03-12
Abstract: 1506281 Centrifugal, centripetal fans, blowers and pumps D G ZERRER 12 March 1975 10360/75 Heading F1C A turbomachine such as a fan, blower or pump comprises at least one runner including a centripetal inducer 70 and a centrifugal impeller 72 shaft mounted within a cylindrical housing on which are mounted guide vanes 40 for eliminating tangential flow. Fluid entering via an inlet 12 leaves inlet guide vanes 26 with substantially axial flow; it then enters the centripetal inducer 70 and subsequently passes to the centrifugal impeller 72. A baffle 104 which guides the fluid into the inducer also separates the inflowing fluid from the outflowing fluid leaving the centrifugal impeller with a tengential flow component which is eliminated by guide vanes 40. The fluid may then enter a second runner in series with the first, finally leaving via outlet 14. Baffle 104 may be connected to the inlet guide vanes 26 which may be mounted on a flanged ring slidable within the housing. Also, an inner casing 24 may rotate with the shaft. To provide unobstructed flow through the runners, the shaft may be split in the space between the inducer and impeller, Fig. 6. A radial inlet, Fig. 5 (not shown) may be provided.
Patent GB-658215-A (GB)
Title: Improvements in phonograph reproducers
IPC: G11B3/10
Filed: 1949-04-19
Abstract: 658,215. Vibration dampers. COLUMBIA BROADCASTING SYSTEM, Inc. April 19, 1949, No. 10361. Convention date, May 29, 1948. [Class 108(iii)] [Also in Group XXXVIII] In a phonograph, pick-up arm resonance is reduced by suspending the arm on a leaf spring 22 clamped between two layers 23 of damping material such as a pliable cellulose nitrate plastic sold under the trade name " Pyralin," having an elastic time lag in that after being deformed, it returns slowly to its initial shape. Specification 658,214, [Group XXXVIII], is referred to.
Patent GB-311700-A (GB)
Title: Improvements in coating compositions containing meta styrene combined with softeners
IPC: C09D125/06
Filed: 1929-04-03
Abstract: 311,700. Du Pont de Nemours & Co., E. I., (Assignees of Lawson, W. E.). May 14, 1928, [Convention date]. Coating-compositions comprise meta-styrene or its derivatives such as methyl, ethyl or chloro-styrene, a solvent, and a softener such as tricresyl phosphate, dibutyl phthalate, dixylyl ethane, glyceryl dibenzyl ether or butyl stearate. Other film-forming materials such as vinyl polymers or styrene derivative polymers, and pigments, may be included in the compositions. In examples the following materials are specified (1) Meta-styrene, tricresyl phosphate, butyl acetate, toluene, xylene, diethyl carbonate. (2) Meta-styrene, dibutyl phthalate, ethyl and butyl acetates, toluene and xylene. Specifications 16277/11 and 17378/00 are referred to. Reference has been directed by the Comptroller to Specification 308,658.
Patent GB-291577-A (GB)
Title: Folding wheel and treadle for sewing-machines and the like
IPC: D05B69/06
Filed: 1927-04-19
Abstract: 291,577. Bogod, M. April 19, 1927. Treadle mechanism.-A folding driving mechanism for sewing machines and the like comprises a standard 1 pivoted to a fixed support 1a, carrying a driving wheel 2 and a pivoted floor bracket 6 which carries the treadle 10 connected to the crank of the wheel by the usual pitman 19. The pitman is connected to the treadle by a link 12 pivoted a,t one end 13 to an extension 11 of the treadle and having a recess at the other end engaged by the spring bolt 17. By disengaging this bolt from the link, the treadle and floor bracket can be swung round the standard 1, and pivoted as a compact whole about the pivot 1b as shown in Fig. 2.
Patent GB-1488502-A (GB)
Title: Headlamp tilting system in a motor vehicle
IPC: B62J6/02
Filed: 1974-03-08
Abstract: 1488502 Adjusting vehicle headlamps LUCAS ELECTRICAL Ltd 27 Feb 1975 [8 March 1974] 10455/74 Heading F4R In an arrangement for tilting vehicle headlamps in a horizontal plane in response to changes in attitude of the vehicle, there is also provided a mechanism for securing the lamps against tilting, which mechanism is biased into a securing position but is normally held one of the securing position by a tensioned portion of the attitude sensing mechanism. As shown the sensing mechanism comprises cable 15, normally under tension and whose opposite end is secured to an unsuspended part of the vehicle. Changes in loading of the vehicle change the effective length of cable 15 with corresponding movement of stop 18 to restore equilibrium between springs 19 and 20, stop 21 being fixed relative to vehicle body 10 and cylinder 16 being slidable relative to stop 21. Movement of stop 18 is transmitted by rod 17 and lever 24 to lever 25 which effects the tilting. The lamps are secured against tilting in response to loading change when inverted V- shaped notch 32 engages pin 34 so as to restrict rotation of lever 25 about pivot 41. Notch 32 is on arm 31 of lever 29 pivotally mounted at 30 on bracket 28. Spring 38 tends to pivot lever 29 to bring about engagement of notch 32 and pin 34 but pivoting is normally prevented by engagement of projection 37 on lever 29 with pin 36 mounted in a slot in rod 17. Failure of the tilting mechanism associated with loss of tension in cable 15 will cause cylinder 16 to move to the right to engage projection 39 and release lever 29. Tilting of lamp (in response to severe braking or acceleration is brought about by the inertia of member 26, and limited tilting in this respect may be retained after actuation of the securing mechanism by the clearance, in a horizontal plane, between catch 32 and pin 34.
Patent GB-268152-A (GB)
Title: Dust collector
IPC: B04C5/081
Filed: 1926-04-21
Abstract: 268,152. Berning, E., (trading as Rafflenbeul, G.). April 21, 1926. Air, washing. - A dust collector comprises a shallow tray a of zinc or the like and an upper removable drum b resting in it and sealed by water. Dust - laden air enters tangentially by a pipe c and escapes, after deposition of the dust particles upon the water, through an outlet tube d to which is fitted a perforated cover e which may be frustoconical in shape and have slots e<2>.
Patent GB-544036-A (GB)
Title: Improved resin-forming compositions
IPC: C08K5/43
Filed: 1940-06-19
Abstract: 544,036. Urea-aldehyde; phenol-aldehyde resins. AMERICAN CYANAMID CO. June 19, 1940, No. 10584. Convention date, July 4, 1939. [Class 2 (iii)]  A catalyst which accelerates the setting of acid curing thermosetting resins at temperatures above about 135‹ C. comprises an N-acyl imide or an N-acyl sulphonamide. The term acid curing resins includes resins which cure only under acid conditions and also those which cure under either acid or alkaline conditions, e.g. resins obtained by re-acting an aldehyde with urea, thiourea, melamine, other aminotriazines, phenols including alkyl phenols and mixtures of the above resins. About 0.1-1 per cent. of the catalyst may be used. Acyl imides specified comprise N-benzoyl phthalimide, N-benzoyl succinimide, N-phthalyldiphthalimide, N-propionyl phthalimide. Sulphonamide derivatives specified comprise N- benzoyl toluene sulphonamide and N-propionyl toluene sulphonamide. Organic bases, e.g. triethanolamine, triethylamine, hexamethylenetetramine may be added to control the time of setting. Fillers may be added, e.g. wood flour, cotton linters, clay, cellulose pulp, colouring materials, starches, gums, alginates and plasticizing agents, e.g. toluenesulphonamide, alkyd resins, polyhydric alcohols with or without mould lubricants. In examples (1) 35 parts sulphite wood pulp, 65 parts urea formaldehyde resin, 0.5 parts zinc stearate and 0.3-0:5 parts N-benzoyl phthalimide are mixed and ground in a ball mill. The mixture cures at a pressure of 3,000-5,000 lb. and at a temperature of 135-165‹ C. in ¢ to 3 mins.
Patent GB-348811-A (GB)
Title: Manufacture of azo-dyestuffs insoluble in water
IPC: C09B29/20
Filed: 1930-04-03
Abstract: Azo dyes; azo dyes, forming on the material.-Azo dyes are made in substance or on a substratum by coupling a diazotized 1-amino-2 : 3-trimethylbenzene halogenated in the 4-position with an arylide of 2 : 3-oxynaphthoic acid, free from groups rendering the dyestuffs soluble in water.  In examples (1) cotton impregnated with 2 : 3-oxynaphthoyl - 11 - amino - 21 - methoxy - 41-chlorobenzene is developed with diazotized 1-amino-4 chloro-2 : 3 : 5-trimethylbenzene; a fast vivid blueish Turkey red is obtained, (2) using 2 : 3-oxynaphthoyl - 11 - amino - 41 - chloro-21 : 51-dimethoxybenzene (Specification 331,247, [Class 2 (iii), Dyes &c.], as in (1) a vivid clear Turkey red is obtained, (3) diazotized 1-amino-4-chloro-2 : 3 : 5-trimethylbenzene is coupled with 2 : 3-oxynaphthoyl-11-amino-21 : 51-dimethoxybenzene.  Other diazo components specified are the 4-bromo- and 4-iododerivatives and other coupling components the 2 : 3-oxynaphthoyl derivatives of o-toluidine, o-anisidine, 1-amino-2-methyl-4-chlorobenzene, 1-amino-2-methoxy-5-chlorobenzene, 1-amino-2 : 3-dimethoxybenzene, 1-amino-4-chloro-2 : 3 : 5-trimethylbenzene, 1-amino-4-chloro-2 : 5-diethoxybenzene (Specification 332,932, [Class 2 (iii), Dyes &c.]), 1-amino-4-chloro-3-methyl-6-methoxybenzene, a - and b -naphthylamine, 1-amino-4-methoxynaphthalene, (Specification 306,415, [Class 2 (iii), Dyes &c.]), 2-amino-3-methoxynaphthalene (Specification 309,879, [Class 2 (iii), Dyes &c.]), and o-phenetidine.  Specifications 6379/12 and 17279/13, [both in Class 2 (iii), Dyes &c.], also are referred to.  1-Amino-4-halogen-2 : 3 : 5-trimethylbenzenes are made by the chlorination, bromination, and iodination respectively of 1-amino-2 : 3 : 5-trimethylbenzene.  Arylides of 2 : 3-oxynaphthoic acid.-The arylides specified are made from 2 : 3-oxynaphthoic acid and the corresponding base.  1-Amino - 4 - chloro-2 : 5-diethoxybenzene is made by reducing 1 - nitro - 2 : 5 - diethoxybenzene and chlorinating.
Patent GB-513289-A (GB)
Title: Diaphragm for receiving or reproducing sound vibrations and method for its manufacture
IPC: H04R7/06
Filed: 1938-04-06
Abstract: 513,289. Diaphragms. SELL, H. April 6, 1938, No. 10592. Convention date, Dec. 18, 1937. [Class 40 (iv)] [Also in Group V] Diaphragms for sound recording, transmitting or reproducing devices are prepared from a solidified cellulose foam material having an almost microscopically fine cellular constitution throughout and a density not exceeding 0.1 gr. per cubic centimetre or of other cellular material having similar properties in regard to stiffness, cellular constitution and density. Diaphragms illustrated have, in Fig. 1, a rigid centre portion having an aluminium film stuck thereto which projects beyond the edge of the diaphragm, the projecting part being corrugated; in Fig 2 a complete diaphragm made of the porous material the edge portion being machined down; in Fig. 3, 4, a rigid central portion with radial strengthening ribs, a recess being provided in the diaphragm for a former for the coil ; in Figs. 5, 6, a diaphragm formed by cementing together two parts cut with annular grooves so that the completed diaphragm contains annular hollow chambers. Specifications 265,968, [Class 70], and 446,442, [Group IV], and German Specifications 553,227 and 570,894 are referred to.
Patent GB-551473-A (GB)
Title: Improvements in or relating to light filters for increasing visibility
IPC: G02B5/22
Filed: 1941-08-20
Abstract: 551,473. Colour filters. DUFAY-CHROMEX Ltd., and CLYNE, A. CORNWELL-. Aug. 20, 1941, No. 10628. [Class 97 (i)] Colour filters, for use in goggles or otherwise, to increase the visibility of observed objects,- comprises laminated glass embodying, in addition to a normal interlayer, one or more intermediate layers of gelatine in which is incorporated one or more dyes strongly transmitting at two or three separated parts of the visible spectrum. Rose Bengale may be used for two transmissions, or a combination of coomassie violet, quinoline yellow, and uranine for three transmissions. The dyed gelatine may be coated on to one or more glass layers, on to a normal interlayer, or on to both glass and interlayer, or may be made up as a separate sheet or sheets subsequently embodied in the laminated glass.
Patent GB-107023-A (GB)
IPC: F22G7/02
Abstract: 107,023. Robinson, J. G., and Superheater Corporation. March 15, 1916. Fire and smoke tube superheaters.-The ends of a U-tube element are fixed in a flange block 6, Fig. 3, having holes 7 in its ends to receive the screwed studs or the like projecting from the bottom or wall of the header, channels 10 being cut across the block at the inner ends of the holes so as to lessen the necessary bending of the tubeends when placing the block over or removing it from its studs. To facilitate further the connexion and disconnexion of an element, the tubeends 5, 5<a>, Fig. 4, inside the smoke-tubes are bent, so that for a portion of their lengths they lie close to the walls of the smoke-tubes towards the header. The holes in which the tube-ends are fixed in a flange block may be arranged diagonally, and the holes receiving the screwed studs may be arranged diagonally in the opposite direction. The tube-holes 5, Figs. 12 and 13, in a flange block are arranged transversely of the block, and communicate with holes 38, 38<a> in the header wall opening at their inner ends on opposite sides of a partition 39. Adjacent elements may have a common flange block. The loops at the header ends of the elements may project for a considerable distance into the smokebox so as to enable the ends of the elements to be bent downwards within the loops.
Patent GB-1146141-A (GB)
Title: Improvements in or relating to the production and application of coatings
IPC: B32B27/00
Filed: 1966-03-11
Abstract: 1,146,141. Laminating. TRENTESAUXTOULEMONDE. 11 March, 1966 [15 March, 1965; 10 Feb., 1966], No. 10760/66. Heading B5N. [Also in Division B2] A method of imparting a glossy coating to a backing material, e.g. of textile, paper, film or sheet metal comprises applying a coating and a flexible material having a smooth surface preferably exhibiting little or no polarity, e.g. a polyolefine or a film coated with polyolefine to said backing material so that the coating lies between the backing material and the flexible material, allowing said coating to harden and separating the flexible material from the coated backing material, wherein said coating is a slow - setting adhesive which initially adheres to both the backing material and the flexible material but whose adhesion to the flexible material diminishes as the coating hardens, the hardening being by chemical action, and wherein said flexible material is chemically incompatible with said coating. In a preferred embodiment, both surfaces of the flexible material are smooth and the flexible material is used to coat two backing materials. In another embodiment, the uncoated surface of the backing material is smooth and chemically incompatible with the adhesive and is used as the flexible material in the coating of a second backing material. The adhesive may be applied by brushing, spraying or by rotogravure, may be applied continuously or discontinuously and preferably comprises at least two reactive constituents, e.g. cross-linkable polyesters and cross-linking agents. In Fig. 1, a paper strip backing material is coated with adhesive by roll 7 and brought into contact between rolls 11 and 12 with a strip 13 of flexible material.
Patent GB-117682-A (GB)
Title: Improvements in Methods of Forming and Treating Electrical Coils.
Inventor: HOBLEY JOSEPH WILFRED
IPC: H01F41/06
Filed: 1917-07-27
Abstract: 117,682. Hobley, J. W. July 27, 1917. Winding-machines.-Coils for the electro-magnets of telephone receivers, electric indicators, electric bells, &c., are formed by winding the wire on a false core or former, dipping the coil and former in a liquid of a binding and insulating nature, and then removing the coil from the former and applying it to the magnet poles. As shown in Fig. 1, the core of the former is formed of two flat members e, e<1> pivoted in a block a and held at their outer ends by screws f to the removable flange d. The former is rotated by mounting the shank b in a lathe or otherwise, and the wire is coiled between the flanges c, d forming a coil of flat or rectangular shape. The coil is removed by detaching the flange d. The core of the former may be in one piece of round or square section and tapering in the direction of the axis.
Patent GB-108091-A (GB)
IPC: G04C17/00
Abstract: 108,091. Vicik, P. Nov. 17, 1916. Counters actuated by independent agency and by electric and magnetic means.-Calendars showing the months, days of the month, and days of the week, and driven by a spring motor, are controlled by a daily electric impulse from a clock carried in the calendar casing. The shaft 11 of the units disk 12 is driven by a spring motor 15 through a pinion 14 on the disk, the movement being controlled by an anchor 17 pivoted at 18 and provided with rollers 19 which engage pins 16 on the disk. A spring-controlled lever 21 is rocked to operate the anchor by a magnet 20 when energized by the clock.
Patent GB-190106-A (GB)
Title: Improvements in or relating to steam boiler furnaces
IPC: F23L15/02
Filed: 1922-04-18
Abstract: 190,106. Aktiebolaget Ljungstr÷ms Angturbin. Dec. 9, 1921, [Convention date]. Forced and induced draught systems; air, supplying; regenerators.-In boiler furnaces provided with a regenerator, preferably of the rotary type, arranged within the uptake leading from several boilers, the air is led from the regenerator 12 through a central conduit 3 to a distributing-conduit 4 arranged below the plane of the furnace grates beneath which it is delivered through damper-controlled channels 5 arranged at the sides of the ash-pit doors 8. The pipe 3 passes through the uptake 10, but, according to a modification, it may pass between the shells of adjacent boilers. Where more than two boilers are arranged to discharge into a common uptake, the conduit 3 may be branched to convey air to the conduit 4 at more points than one.
Patent GB-1182389-A (GB)
Title: Unsaturated Acylamino Compound suitable as a Hardening Agent for Polymers
IPC: D06M13/41
Filed: 1968-03-06
Abstract: 1,182,389. Di-Acryloylamine. CIBA Ltd. 6 March, 1968 [6 March, 1967], No. 10907/68. Heading C2C. [Also in Divisions C3 and G2] Di-acryloylamine is prepared by reacting di-(#-chloropropionyl)- amine with triethylamine in acetone. Di-(#- chloropropionyl)-amine is itself prepared by heating acrylamide with #-chloropropionyl chloride. Di-acryloylamine is used for hardening water-soluble polymers, e.g. polyvinyl alcohol, gelatin.
Patent GB-393399-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B7/02
Filed: 1932-04-16
Abstract: 393,399. Lens mounts. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl- Ufer, Berlin. April 16, 1932, No. 10985. Convention date, April 16, 1931. [Class 97 (i).] . A set of mounts for objectives of various focal lengths for a kinematograph &c. projector or for a camera is characterized in that for all the mounts of the set the part of the mount serving as the support for the objective is at a constant distance from the film &c. to be projected or from the focusing screen of the camera. The support may be provided with a fine screw-thread so that it can be slightly displaced for fine focusing-adjustment. Fig. 1 shows half a single mount in one form, a being the constant distance from the film &c. 1 to the support b which is the same size for all the mounts. The individual lenses of the objectives are carried by ribs c, d, the positions of which within the mount vary according to the focal length of the objective. In another form, Fig. 9, the ribs c, d are formed in an intermediate support e connected to the support b by a rib f. In another form, part of the objective is fitted to an extension of the support b.