baber/WOPTO huggingface dataset:
Patent GB-409008-A (GB)
Title: Improvements in or relating to the manufacture of cellulose nitrate
IPC: C08B5/10
Filed: 1932-10-21
Abstract: Nitrocelluloses of low viscosity and of good stability and colour capable of giving films of good strength and flexibility, are obtained by treating nitrocellulose in the undissolved state with aqueous ammonia solution until the desired reduction of viscosity has taken place, then after washing, removing the colour by bleaching with a solution containing available chlorine, and finally boiling with water with or without an anti-chlor.  The sequence of treatments may be repeated if desired, and the final bleaching treatment if mild may be followed by a simple washing with hot water.  The treatment with ammonia solution is preferably carried out at 70--100 DEG  C. for 2--24 hours, although lower temperatures and appropriately longer durations of treatment may be adopted; and the solution used should contain ammonia in amount between 0.5--11.2 per cent of the weight of the nitrocellulose. The bleaching solution which may be an aqueous chlorine solution or an acidified solution of calcium hypochlorite, should contain an amount of chlorine not substantially greater than 15 per cent of the weight of the nitrocellulose, preferably not more than 3 per cent, for example, as low as 0.375 per cent.  The nitrocellulose may be in the fibrous form or in the colloided condition such as smokeless powder; and in the latter case it is first reduced to a finely divided form by solution in acetone followed by precipitation by pouring into water.  The Specification as open to inspection under Sect. 91 refers to the use of nitrous acid as the bleaching agent; and it includes an example in which the product after treatment with ammonia solution and bleaching, was simply washed.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1447924-A (GB)
Title: Warmer
IPC: F24V30/00
Filed: 1974-07-03
Abstract: 1447924 Heating devices utilizing exothermic chemical reactions ASAHI KASEI KOGYO KK 3 July 1974 [4 July 1973 8 Sept 1973 5 Jan 1974 10 Jan 1974 27 Feb 1974] 29473/74 Heading F4X [Also in Division A5] A heating device, particularly for use in applying heat to various parts of the human body for medical treatment purposes, comprises a heating assembly T in the form of a multilayer bag having at least one cloth layer 11 and at least one sheet or film layer 12 having a plurality of aeration holes 17 and containing an exothermic reaction composition 10 comprising iron powder, a chloride or sulphate of a metal higher than iron in the electrochemical series, a porous material such as active carbon having good water absorbent properties and water retention capacity, and water. The heat assembly T is encapsulated within an air-tight envelope 16 from which it can be removed for use thereby permitting air to enter the composition 10 for exothermic reaction. The heating assembly may be affixed to a pad or layer of porous material (34, Fig. 7, not shown) impregnated with a medical treatment solution the effect of which is augmented by the presence of heat. The sheet or film 12 and the air-tight envelope 16 may be made of polyethylene, polyvinyl chloride, natural or synthetic rubber. The cloth layer 11 may be of woven or non- woven cotton or synthetic fibre. The multilayer bag containing the heat generating composition may comprise three upper layers (21, 23, 25, Figs. 4 and 5, not shown) and two lower layers (22, 24); the layers of cloth and film may be in the form of a laminate structure. Examples of metal chlorides are potassium chloride, sodium chloride, calcium chloride and magnesium chloride and examples of sulphates are ferric sulphate, potassium sulphate, sodium sulphate and magnesium sulphate. Small quantities of manganese, chromium, copper or compounds thereof may be added to the heat generating mixture as an oxidation catalyst. Preferably the amount of metal chloride or sulphate is 0À5-30 parts by wt. per 100 parts by wt. of iron powder, the amount of active carbon is 2À5-400 parts by wt. per 100 parts by wt. of iron powder, and the amount of water 10-250 parts by wt. per 100 parts by wt. of active carbon. The particle size of the iron powder is less than 200 Á and of the active carbon less than 104 Á.
Patent GB-152661-A (GB)
Title: Improvements in and relating to presser foot mechanism for sewing machines
IPC: D05B27/04
Filed: 1920-10-19
Abstract: 152,661. Moulton, H. C. Oct. 20, 1919, [Convention date]. Blind-stitching machines.-A toe-piece 16, which guides the up-turned edge of the upper ply of the work to the needle, is pivoted at 19 and is provided with a spring 28 which serves to press the toe-piece on to the work or to hold it in the raised position shown. The guiding surface of the toe-piece is convex and curved towards the stitching point. An adjustable edge guide 30 is secured above the toe-piece. The underside of the heel portion of the presser-foot is provided with a detachable plate 13 which may be replaced by a plate of different thickness when required. The forward part of the foot is fitted with a projecting piece 41 which serves to strip the fabric from the feed foot which engages the upper side of the work.
Patent GB-200018-A (GB)
Title: Improvements in or relating to adjustable pince-nez or eyeglasses
IPC: G02C3/00
Filed: 1922-10-30
Abstract: 200,018. Bateman & Co., Ltd., F., and Bateman, F. W. Oct. 30, 1922. Eyeglasses of the sliding bar type, in which the distance between the placquets b, b<1> is adjusted by means of a nut d working on a screw thread, has the screw thread g cut on the thin edge of one of the sliding bars c to prevent lodgment of dirt &c. The nut d bears against a collett e attached to the other bar c<1>, which is maintained in contact with the nut d by the spring f, bearing against a collett e<1> on the bar c. Specification 18008/07 is referred to.
Patent GB-713779-A (GB)
Title: Improvements in or relating to choline chloride compositions and feed compositions containing said choline chloride compositions
IPC: C07F9/10
Filed: 1951-12-18
Abstract: A composition comprises choline chloride and an amount of choline phosphate sufficient to inhibit discoloration of the composition in contact with ferrous metals.  There is described the preparation of a solution of the salts in the ratio 99-60 mols. of choline chloride to 1-40 mols. of choline phosphate calculated as the monophosphate by the treatment of an aqueous solution of choline with sufficient phosphoric and hydrochloric acid to provide pH 5.0-6.8 and then adjusting the pH to 7-8 by addition of sodium bicarbonate or carbonate.ALSO:A composition comprising choline chloride and an amount of choline phosphate sufficient to inhibit discoloration of the composition in contact with ferrous metals is incorporated into animal feed in quantity sufficient to provide 0.05-4 per cent of choline.  A preparation which contains the salts in the ratio of 99-60 mols of choline chloride to 1-40 mols of choline monophosphate is obtained by treatment of an aqueous solution of choline with phosphoric and hydrochloric acids to produce pH 5.0-6.8, adjusting the solution to pH 7-8 by addition of sodium carbonate or bicarbonate, and concentrating at 40-65 DEG  C. in vacuo to 70 per cent choline solids.  An example is concerned with prevention of perosis in chicks by incorporation of such a preparation into a choline-free diet, the composition of which is set forth in detail.
Patent GB-843914-A (GB)
Title: Improvements in pressure exchangers
IPC: F04F13/00
Filed: 1955-06-30
Abstract: 843,914. Pressure exchangers. PEARSON, R. D., and HOOTON, G. E. June 25, 1956 [June 30, 1955], No. 29684/56. Divided out of 843,911. Class 8(1). In a pressure exchanger the cells are closed to scavenge flow ducts in stages. The low pressure discharge duct Lo is followed in the direction of cell rotation by a duct Vo in which a higher pressure than in the duct Lo is maintained. The high pressure delivery duct Hi is progressively closed to the cells by shaping of the nozzle edge N.
Patent GB-1510934-A (GB)
Title: Conveyor means for temporary storage of sheets of paper such as bank notes
IPC: G07F7/04
Filed: 1976-07-16
Abstract: 1510934 Conveying and stacking sheets LANDIS & GYR GmbH 16 July 1976 [24 July 1975] 29738/76 Heading B8R Bank notes inserted into a vending machine are stored temporarily between endless belts. A first note is fed through a testing station 1 by rollers 1a to an inlet aperture 2 between belts 5 and a roller 9 on a pivotable guide 8. Either the trailing edge is sensed at 11a or the leading edge at 11, photoelectrically, causing guide 8 to pivot and urge the note against belts 5 which, together with 17, 19 are moved in one sense by a motor. This advances the note as far as a photoelectric sensor 25. The note is either rejected through a return slot 23, or the motor is reversed and guide 8 moved back to its illustrated position in which an associated pivotable flap (15), Fig. 2 (not shown) lies horizontally and directs the note between belts 17, 19. Upon being sensed at 26 the note is either deposited in a till or held in store between the belts. In the latter case, when a second note is inserted and the belts actuated again in said one sense, the first and second notes are superimposed as they are fed towards sensor 25, the second note leading however, the cycle is thus repeated. In this way a stack of notes may be built up between the belts 17, 19 before being deposited in the till.
Patent GB-880266-A (GB)
Title: Improvements in or relating to mirror devices
IPC: B60R1/08
Filed: 1958-09-17
Abstract: 880,266. Rear-viewing mirrors; anti-dazzle devices. CORKING, A. F. Sept. 8, 1959 [Sept. 17, 1958], No. 29762/58. Class 103(2). [Also in Group XX] A vehicle rear-viewing mirror device for preventing dazzle from the headlights of following vehicles comprises, an elongated body 1 in which a flat transparent reflector plate 3, of glass, is secured by a front cover 5 against body lugs 4 and in which a flat mirror 10 is pivotally mounted by means of a carrier 11 provided with slots 12 engaging a notch 14 in the bottom wall of the body. The carrier has a finger plate 15 and its upper end engages a leaf spring 8 having its ends engaged in slots in the body side walls. In the position shown the reflector 3 is operative for night driving. When the mirror 10 is tilted so as to contact the reflector 3 or to be spaced therefrom but parallel thereto, the device is operative for daytime driving.
Patent GB-230791-A (GB)
Title: Improved mount for false hair
IPC: A41G3/00
Filed: 1924-12-11
Abstract: 230,791. Moriohon, J. March 17, 1924, [Convention date]. Hair switches.-A mount for false hair or hair switches comprises a flexible and extensible support a, which may be a rubber or like cord or a spring, provided at each end with a hook b for attachment to the natural hair, and covered with net or lace to which the false hair c is attached.
Patent GB-366948-A (GB)
Title: Framework for bodies of vehicles especially motor driven vehicles
IPC: B62D29/02
Filed: 1930-10-06
Abstract: 366,948. Vehicle bodies. ARQUINT, H., 31, Fritz Reuterstrasse, Pasing, near Munich, Germany. Oct. 6, 1930, No. 29824. [Class 108 (i).] In a vehicle body the framework comprises transverse frames having strain and compression elements between the side posts which are connected by additional strain and compression elecments to the horizontal supports of the transverse frames, the body being mounted on the chassis through these horizontal supports. The transverse frames 1 .. 4 are connected together by spacers 5, 6, 7, roof girders, and horizontal supports 8, 9. Strain and compression elements are provided as shown so that, for instance, a retardation force B is transmitted to the points 19, 21 by strain elements 22 and compression element 5 and thence to the points 10, 12 by strain elements 14, 17. Similarly an acceleration force is transmitted to points 11, 13, the points 10 .. 13 being stationary anchorage points. The side posts comprise a T-shaped post having bent ends 29, Fig. V, a cap piece 32 and window guides 30, 31.
Patent GB-654342-A (GB)
Title: Improvements in or relating to moistureproof, heat-sealable sheet wrapping material
IPC: C08J7/052
Filed: 1948-11-16
Abstract: A coating composition for regenerated cellulose film comprises copolymers made from 35-96.5 per cent vinylidene chloride, 0.5-2.5 per cent itaconic acid, and 3-40 per cent of one or more of the following compounds: acrylonitrile, alkyl esters of acrylic and methacrylic acids having from 1 to 18 carbon atoms in the alkyl group, e.g. phenyl methacrylate, cyclohexyl methacrylate, p-cyclohexyl phenyl methacrylate, methacrylonitrile, methyl vinyl ketone, and vinyl chloride.  Copolymerization may be carried out by any known method.  It may be performed in aqueous media with a catalyst, e.g. ammonium persulphate, an activator, e.g. sodium metabisulphite, and any emulsifying and/or dispersing agent, e.g. sulphated methyl oleate, sodium lauryl sulphate, and sodium naphthalene sulphonate condensed with formaldehyde. Alternatively the copolymer may be prepared in bulk, or in organic solvent media. Mercaptans such as ethyl mercaptan, lauryl mercaptan, and tertiary dodecyl mercaptan may be used to modify the copolymer.  The coating of base film of regenerated cellulose with the copolymer to provide a moisture-proof, heatsealable material may be effected either from aqueous emulsion, or from solution in an organic solvent, e.g. 1,3-dioxalane, dioxane and cyclohexanone.
Patent GB-764907-A (GB)
Title: Improvements in or relating to aircraft reaction propulsion units and installations
Inventor: ELLIOTT ALBERT GEORGE
IPC: F02K1/62
Filed: 1952-11-25
Abstract: 764,907. Controlling jet-propelled aircraft. ROLLS-ROYCE, Ltd. Nov. 17, 1953 [Nov. 25. 1952], No. 29868/52. Class 4. [Also in Group XXVI] A jet propulsion plant is mounted in a wing nacelle 10 and the jet pipe 11 terminates at its rear end in a portion 12 movable axially by pneumatically-operated jacks 14 mounted within the nacelle 10 and having piston rods 15 connected to a fairing structure 16 secured externally of the portion 12. The piston rods 15 extend through tubular mounting struts 17 which support a series of axially-spaced annular dished-section guide vanes 18. A butterfly valve 19 is mounted within the portion 12 on a pivot 20 which carries a spring-loaded arm 22 connected to one end of a link rod 23. The other end of the link has a stop 25 which abuts a guide block 24 when the portion 12 is in the position shown to cause the valve 19 to close the rear end of the jet pipe and cause the gases to flow through the ducts exposed by the portion 12 when in its rearward position, the gases being deflected forwardly to provide a braking effect on the aircraft. When the jacks 14 are operated to move the portion 12 against the rear end of the pipe 11 the lateral ducts are blanked off and the valve 19 is opened to permit rearward flow of the gases. The valve 19 is mounted on an off-centre pivot so that the flow of gas holds it open. In a further embodiment, Figs. 3-6 (not shown), the jet pipe 11 extends rearwardly to a propelling nozzle and it is provided with diametrically opposed ports closed by slide valves, the ports being on the inner ends of forwardly inclined ducts which extend to further ports in the outer surface of the nacelle fairing opened and closed by hinged flaps operated by further jacks, vanes such as vanes 18 being used for deflection of the gases. The end of the jet pipe is provided with opposed hinged shutters to close the nozzle and in a still further embodiment, Fig. 7 (not shown), these shutters may be associated with a valve such as valve 19. Provision is made for a flow of cooling air around the jet pipe such air being passed through the slide valves and opposed hinged shutters, which are double skinned for this purpose, when jet deflection is not taking place.
Patent GB-895925-A (GB)
Title: Process for the preparation of trimethylborate
IPC: C07F5/04
Filed: 1960-08-30
Abstract: Trimethyl borate is made by esterifying boric acid or boric anhydride under the influence of heat with excess methanol, distilling off trimethylborate produced by the esterification along with methanol, the condensate being an azeotrope of methanol and trimethylborate, and extracting the condensate so obtained with concentrated sulphuric acid to form a sulphuric acid solution containing a major proportion of the methanol of said azeotrope and residual trimethylborate, and a separate phase containing a major proportion of the trimethylborate of said azeotrope, wherein the said sulphuric acid solution is included in the esterification reaction mixture employed in the formation of trimethyl borate. The preferred molar ratio of methanol to boric acid or boric anhydride in said esterification reaction mixture is between 1 and 5 times the theoretically required ratio. The preferred weight ratio of sulphuric acid to boric acid or boric anhydride contained therein is from 0.2 to 1.5 and the sulphuric acid is preferably of 98% to 100% concentration.  The mixture of methanol, sulphuric acid and boric acid is heated to boiling in the reactor, an azeotrope of methanol and trimethyl borate is distilled off to a washer separator where it is subjected to three washings with sulphuric acid, almost pure trimethyl borate being obtained from one side, and from the other a sulphuric acid-methanol-trimethyl borate mixture which is recycled to the esterification reactor.
Patent GB-602689-A (GB)
Title: Improvements in wireless aerial systems
IPC: H01Q13/02
Filed: 1945-11-09
Abstract: 602,689. Wave - guides ; directive radio systems. BOHM, O. M., JEDRYCHOWSKI, J., REYNOLDS, L. G., and WRIGHT, C. S. Nov. 9, 1945, No. 29939. [Class 40 (vii)] In an aerial system including a wave-guide radiator provided with wave-guiding walls projecting beyond the radiating end .or surface of the guide, at least one of the walls is constructed so that it is partly transparent to radiant energy. In Fig. 1, the broad walls 2 of a sectoral horn are extended as wave-guiding walls composed of metal rods or slats 5 supported between sheet metal side walls. The rods 5 are spaced so that a certain amount of radiant energy, polarized in a direction parallel to the rods, passes out through the walls so as to produce low-level side bulges on the radiation pattern. Alternatively, only one extension wall may be partly transparent. In that case an asymmetrical radiation pattern results. In Fig. 3, the partly transparent wall 12 forms an extension of one surface 6 of a wave-guide which is slotted at 7 to produce a beam of radiation. A wall 9 extending from the opposite side 10 is of solid sheet metal. This arrangement gives an asymmetrical radiation pattern. Both extension walls may be made partly transparent.
Patent GB-676898-A (GB)
Title: Improved fuel homogenizing device for internal combustion engines
IPC: F02M1/00
Filed: 1949-11-23
Abstract: 676,898. Atomizing charge. ALEMAN. E. D., and VALDEZ, G. S. Nov. 23, 1949 [Dec. 3, 1948], No. 29961/49. Class 7(ii) A duct 10 has end portions 18, 23, e.g. circular, corresponding in shape to the outlet and inlet of a carburetter and manifold respectively between which the duct is fitted, and two intermediate spaced-apart portions having medial substantially oblong sections 20, 21 the major axes of which are disposed at right angles. The duct may be an integral part of the carburetter or manifold.
Patent GB-854182-A (GB)
Title: Substituted organic phosphine derivatives
Inventor: COATES HAROLD
IPC: C07F9/50
Filed: 1957-09-24
Abstract: Organic phosphines of formula P(CH2NR1R11)3-nRn are prepared by reacting a phosphine of formula Rn PH3-n, (a) with formaldehyde and a primary or secondary amine NHR1R11, (b) with a methylolamine HOCH2 NR1R11 or (c) with a methylene diamine CH2 (NR1R11)2 where R an R1 are alkyl, cycloalkyl, aralkyl, aryl or heterocyclic radicals, R11 is an alkyl, cycloalkyl, aralkyl, aryl or heterocyclic radical or a hydrogen atom, or R1, R11 and N together constitute a heterocyclic radical and n is 0, 1 or 2.  An inert solvent, e.g. water, may be used and also an inert atmosphere.
Patent GB-1114251-A (GB)
Title: Processing of presensitized photolithographic printing plates
Inventor: WATKINSON LEONARD JAMES
IPC: G03F7/32
Filed: 1964-07-29
Abstract: Cellulose compositions comprise an organic solution of a cellulose ether (e.g. methyl-, 2 - methyl - 6 - hydroxypropyl-, 2 - ethyl - 6 - hydroxyethyl - cellulose) in dimethyl formamide which may be mixed with tetrahydro-furfuryl alcohol, 3-methoxybutyl acetate or isophorone, or the solvent may be tetrahydrofurfuryl alcohol and ethylglycol monoacetate.  The solution may also contain a wetting agent, a dye or citric or phosphoric acid.  The solutions are used as photo-resist developers (see Division G2].
Patent GB-1060674-A (GB)
Title: Improvements in dough processing
Inventor: FARRER KENNETH
IPC: A21C3/02
Filed: 1964-07-29
Abstract: 1,060,674. Sheeting dough. BAKER PERKINS Ltd. July 21, 1965 [July 29, 1964], No. 30065/64. Heading B5A. Dough is processed by passing between a single pair of sheeting rolls at a speed equal to or greater than 350 feet per minute, preferably 420, the gap being equal to or less than 0À093 inches, preferably 0À06 to 0À085. The rolls may be flanged on one or both sides to prevent spreading of the dough.
Patent GB-809266-A (GB)
Title: Improvements relating to drying apparatus for the hands, and other parts of the person
Inventor: WILKINSON KENNETH JOSEPH
IPC: A47K10/48
Filed: 1956-10-03
Abstract: 809,266. Hand-driers. SPIRAL TUBE & COMPONENTS CO. Ltd. Sept. 30, 1957 [Oct. 3, 1956], No. 30090/56. Class 81 (2). In a hand-drier having one or more hot air nozzles, each nozzle has a pivoted closure plate normally held closed by a spring but arranged to be opened by a pedal device. Each nozzle 28 has a closure plate 31 mounted on a pivot 32 and a lever 37, pivotally connected to the nozzle on a stud 36, passed through a bushed hole 39 in a tail-piece 33 of the plate. The other arm of the lever is attached to a block 40 which is pivoted to a link 41 connected to a pedal 44. A spring 47 fastened between a lug 48 and link 41 holds the plate in closed position.
Patent GB-1026103-A (GB)
Title: Improvements in vulcanizing machines
IPC: B29C35/00
Filed: 1963-08-02
Abstract: 1,026,103. Footwear vulcanizing machines. YEN TING SHENG. Aug. 2, 1963, No. 30803/63. Heading B5A. A manually operated vulcanizing machine, e.g. for footwear, comprises a mould having a separable upper portion 11 carrying a sole die, and individually separable side portions 4 and 5 carrying side moulds for the footwear and movable laterally with respect to the upper portion to close the mould, means being provided on the upper portion to prevent movement of the side moulds when the mould is in the closed position. The sides are moved by link means 7 and 8 operated by levers 9a and 10a respectively and the upper portion is connected to a rotatable screw 12. The bottom 20 of the machine is fitted with a shoe last 31. In operation the mould parts are in the open position and footwear parts to be vulcanized are inserted therein. Operation of levers 9a and 10a causes the sides 4 and 5 to move in and rotation of handle 12a screws down the upper part 11 to close the mould. Clamping means 16 and 17 then prevent further movement of the links. Heating platen 18 is provided on the upper part and cooling channels 19 on the sides. Two machines may be joined together by metal plates as in Fig. 3 (not shown).