baber/WOPTO huggingface dataset:
Patent GB-465591-A (GB)
Title: A process for working up ores and metallurgical products containing iron and nickel
IPC: F23J15/02
Filed: 1935-09-10
Abstract: Ferro-nickel is produced by the reduction of ores or metallurgical products containing nickel and iron, the ferro-nickel being then enriched with nickel by blowing in a converter, the blowing being carried out in two or more stages in the first of which enrichment is carried only so far that the slag obtained contains not more than 0,8 per cent of nickel.  The slags obtained in subsequent stages may be re-supplied to the reducing process.  The resulting alloy may be refined in a reverberatory or electro furnace to remove sulphur and arsenic and may be used in the production of nickel steel or may be cast into anodes and worked up to pure nickel by electrolysis.  The reduction stage may be carried out in the manner described in Specification 438,633.  The Specification as open to inspection under Sect. 91 refers also to the addition of sulphur-containing materials, such as pyrites or nickel matter, in the converter stage.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1153101-A (GB)
Title: A process for the manufacture of Benzdiaz[1,4]Epine Derivatives
IPC: A61K31/165
Filed: 1967-06-01
Abstract: 1,153,101. Benzodiazepine derivatives preparation. F. HOFFMANN-LA ROCHE & CO., A.G. 1 June, 1967 [3 June, 1966], No. 25272/67. Heading C2C. Compounds of the general formula (wherein R represents a C 1-7  alkyl group, R<SP>1</SP> represents Cl, Br, NO 2  or CF 3 , R<SP>2</SP> represents a halogen atom and the broken lines denote optional substituents) and their acid addition salts are prepared by cyclizing a compound of the formula in the presence of a dehydrating system and, if desired, converting the product into an acid addition salt.
Patent GB-615960-A (GB)
Title: Improvements in or relating to tire removing apparatus
IPC: B60C25/02
Filed: 1946-08-23
Abstract: 615,960. Vehicle wheels. FIRESTONE TIRE & RUBBER CO. Aug. 23, 1946, No. 25280. Convention date, Nov. 15, 1945. [Class 144 (i)] A device for forcing a tyre from a fiat-base rim, from which the detachable side-flange at one edge has been removed, comprises a spider 23 carrying arms 24 on which radially-adjustable legs 30 are mounted. Pivoted on the lower ends of the legs are wedge-shaped feet 32 adapted to engage between the tyre-bead and the fixed rim-flange 13. The spider is moved down a threaded spindle 20 on the wheelsupporting base 18 by means of a nut 27 fitted with handles 28. The feet 32 are weighted so as normally to assume the angular position shown in Fig. 1, but are formed with flats 32a to abut mating flats on the legs 30 so as to limit the rocking movement of the feet after the initial separation of the tyre-bead from the rim-flange.
Patent GB-684366-A (GB)
Title: Two-stroke internal combustion engine
IPC: F02B69/06
Filed: 1950-10-17
Abstract: 684,366. Two-stroke engines. MARTINELLI, P. Oct. 17, 1950 [Oct. 22, 1949], No. 25294/50. Class 7 (ii). In a two-stroke engine, exhaust ports begin to open at C, Fig. 1, corresponding to a crank angle of about 130 degrees from top dead centre and close at G at about 230 degrees, scavenging with compressed air begins at D at 140 degrees and ends at F at about 220 degrees, and admission of air-fuel mixture begins at E at about 170 degrees and ends at H at about 280 degrees, admission overlapping compression by about 50 degrees. Ignition takes place at I at 335 degrees. In the two-cylinder engine shown in Fig. 2, a crank-. shaft 16 drives a cam-shaft 23 for operating the mixture and scavenging valves through bevel gears 17, 18, 21 and 22, a water pump 26 through gears 24, 25, two separate lubricating-oil pumps 28, 28a one for each cylinder, a magneto and a mixture compressor. Piston-controlled exhaust ports 41 open on the two sides of a duct 42 through which compressed air admitted via a piston-controlled, port 44 passes from the crankcase to the scavenging valve.
Patent GB-974773-A (GB)
Title: Improvements in or relating to cooling systems for thermopiles
IPC: H01L35/30
Filed: 1962-07-02
Abstract: 974,773. Fluid circulating systems for cooling thermopiles. BABCOCK & WILCOX Ltd. July 2, 1962 [June 30, 1961], No. 25337/62. Heading F4U. [Also in Division H1] A cooling system for a thermopile 11 comprises a body formed of one or more blocks 13, 14, 15 in contact with the cold face of the thermopile, the blocks having passages 17 therethrough for the circulation of a liquid adapted to be vaporized in the zone adjacent said passages and to be cooled in a condensing zone. As shown, hot fluid passes upwardly through duct 12 and heats the hot face of thermopile 11. The cold face of the thermopile lies adjacent three superposed blocks 13, 14, 15, e.g. of copper, which are traversed by bores 17 connected at their upper ends by tubes 18 and at their lower ends to tubes 20. Tubes 18 and 20 are connected to a closed circuit fluid, e.g. water, flow system. The closed system contains water and a vapour space, the pressure of the air in the vapour space being reduced to several millimetres of mercury before the circuit is sealed. The water is vaporized by the heat received by the blocks from the cold face of the thermopile 11 and thus cools the blocks. The vapour rises to tube 19 and then flows through finned tubes 27 of the condenser 24 where it is cooled by air flow over the tubes; circulation of the water is then continued by the downwardly inclined orientation of the finned tubes. In a modification illustrated in Fig. 2, the thermopile is in two annular parts 31 and 32, the space between the hot faces and the duct 12 being filled by blocks 37, 37a disposed sideby-side with their lateral faces in contact to encircle the duct 12 which may be of polygonal shape. A further ring of blocks 34 is arranged so that the end faces 33 of each block are in thermal contact with the cold face of the part 31. The facing annular boundaries of the rings formed by the blocks 34, 34a, 37 and 37a are insulated by rings 39 and 39a. The blocks 34, 34a are traversed by evaporator tubes 40. In further modications, the blocks may extend into a tank containing the fluid of the circuit (Figs. 3, 4, not shown), and in Fig. 4 is illustrated a plurality of inverted Perkin's tubes which may replace the conventional heat exchanger. Figs. 5 and 6 (not shown), are concerned with flat thermopiles.
Patent GB-372658-A (GB)
Title: Improvements connected with gland packings and jointings for steam engines, pumps and the like
IPC: F16J15/22
Filed: 1931-10-05
Abstract: 372,658. Packing for making joints and for stuffing-boxes. WYNDHAM, T. S., Llantwit-Major, Glamorgan. Oct. 5, 1931, No. 25478. [Classes 122 (iii) and 122 (v).] Plywood treated with a mixture of oil and sulphur is used for making joints and for stuffing boxes.
Patent GB-685458-A (GB)
Title: Improvements relating to the manufacture of footwear of the veldtschoen type
IPC: A43B9/06
Filed: 1949-10-04
Abstract: 685,458. Veldtschoen. LOTUS, Ltd., and COLLINS, W. A. J. Sept. 22, 1950 [Oct. 4, 1949], No. 25515/49. Class 17 (ii). A heavy flexible durable waterproof shoe is made by lasting the lower edge of a leather lining inwards over a flexible insole 4 and sticking over it a flexible platform 5 about an eighth of an inch thick of, for example, bonded granulated cork, rubber or rubberized felt. A leather through-middle sole 6 is then stuck in position and the upper 2 is stuck by adhesive to the lining 3 and its lower edge 2a out-turned and secured by a seam 8 in the inmost feather to the sole 6. An outer sole 7 is then secured by a seam 9 to upper 2 and sole 6.
Patent GB-1343158-A (GB)
Title: Writing and manifolding material
IPC: G01N31/22
Filed: 1971-04-19
Abstract: 1343158 Pressure-sensitive record sheet assembly GUNTHER WAGNER PELIKANWERKE GmbH 19 April 1971 [27 June 1970] 25524/71 Heading D2B A pressure sensitive record sheet assembly comprising a first sheet having a layer of a hydrophilic binder containing as a colourfoming agent a spiro dipyran and a second sheet having a layer of a hydrophilic binder containing as a colour-developing agent a clay treated with an acid or acid-reacting substance, is characterised in that the acid-treated clay is (a) substantially free from quartz and mica impurities and other particles having a particle size greater than 33Á; and (b) a filtrate derived from a boiled aqueous suspension containing 10% by wt. of the clay contains 0.03-0.07% by wt. of acid and has a pH value of 2.7-3.5. The assembly may also include an intermediate sheet having appropriate colour-forming and colour-developing layers on each of its faces.
Patent GB-765850-A (GB)
Title: Improvements in or relating to new quaternary ammonium salts
Inventor: HEY PETER
Filed: 1953-09-21
Abstract: The invention comprises quaternary compounds containing the cation of the formula: <FORM:0765850/IV(b)/1> wherein R1, R2 and R3 each represent a hydrogen or a halogen atom or a lower alkyl group (i.e. one containing not more than 4 carbon atoms) with not more than one of R1, R2 or R3 representing a hydrogen atom, A represents a divalent group selected from <FORM:0765850/IV(b)/2> and R4, R5 and R6 each represent a lower alkyl group.  Suitable examples of the anion in such compounds are halide, bitartrate, citrate, methosulphate and neutral sulphate ions.  Such compounds are obtained by reacting a compound of the formula: <FORM:0765850/IV(b)/3> where M represents an ester radical such as a halogen atom with the appropriate tertiary amine and if desired replacing the anion M in the resulting quaternary compound (e.g. by metathesis or via the hydroxide) by another anion.  Alternatively the corresponding tertiary amines can first be formed and then quaternated.  In Example (1) b -(2 : 6-xylyloxy)-ethyl bromide (from the reaction of 2 : 6-xylenol and 1 : 2-dibromoethane) is reacted with triethylamine to give b  - (2 : 6 - xylyloxy) - ethyltrimethylammonium bromide.  Similarly obtained are (2) b  - (2 : 4 : 6 - mesityloxy) - ethyltrimethylammonium bromide and (3) b -(2 : 6-xylyloxy)-ethyltriethylammonium bromide.  There may be similarly prepared the methiodides and ethobromides of 2 - (b  - dimethylaminoethoxy) 1 : 3 - dichlorobenzene and of 2 - (b  - diethylaminoethoxy)-1 : 3-dichlorobenzene.
Patent GB-397678-A (GB)
Title: Improvements relating to securing tiles, slabs and the like to surfaces
IPC: C09J107/02
Filed: 1932-09-15
Abstract: Tiles and the like are secured to walls by means of a plastic composition consisting essentially of 15 parts by weight of rubber latex, 3 to 12 parts of silica flour, and 1/2 to 1 part of gum.  An exemplary composition comprises 15 parts by weight of latex of 75 per cent rubber content, 4 to 6 of ground quartz, 9 to 12 of silica flour, and 1/2 to 1 of dextrine derivative. Colouring matter may be added.
Patent GB-472093-A (GB)
Title: Improvements in the production of acetone
IPC: C07C45/26
Filed: 1936-09-22
Abstract: Acetone is produced by passing a mixture of water vapour and acetylene at 40--500 DEG  C. and normal pressure over a catalyst containing one part of ferric hydroxide prepared by precipitation and 3--6 parts of zinc oxide prepared by heating zinc carbonate, and, if desired, manganese hydroxide, in quantity 10--20 per cent of the mixture.  The ingredients of the catalyst should not be heated above 600 DEG  C. during their preparation.  The catalyst may be prepared by adding ammonia to a dilute solution of ferric chloride with or without manganese sulphate, and adding the zinc oxide to the precipitate during the filtration, the mixture being dried at 110 DEG C.  In examples, (1) acetylene and steam are passed through iron tubes heated to 400--500 DEG  C. by a molten salt bath, the catalyst (zinc oxide and ferric hydroxide) being regenerated periodically by passing over air and steam at 400 DEG  C. falling to 300 DEG  C.: (2) in a similar operation the catalyst contains also manganese hydroxide.  Specifications 280,184 and 299,048, [both in Class 2 (iii)], are referred to.ALSO:A catalyst for the production of acetone from acetylene and steam contains one part of ferric hydroxide prepared by precipitation and 3--6 parts of zinc oxide prepared by heating zinc carbonate, and, if desired, manganese hydroxide in quantity 10--20 per cent of the mixture.  The ingredients of the catalyst should not be heated above 600 DEG  C. during their preparation.  The catalyst may be prepared by adding ammonia to an dilute solution of ferric chloride with or without manganese sulphate, and adding the zinc oxide to the precipitate during the filtration, the mixture being dried at 110 DEG  C.  The catalyst may be regenerated periodically by passing over air and steam at 400 DEG C. falling to 300 DEG  C.  Specifications 280,184 and 299,048, [both in Class 1 (i)], are referred to.
Patent GB-317860-A (GB)
Title: Improvements in an apparatus for handling and emptying glass melting pots
IPC: C03B13/18
Filed: 1929-08-23
Abstract: 317,860. Naamlooze Vennootschap Maatschappij tot Beheer en Exploitatie van Octrooien. Aug 25, 1928, [Convention date]. Addition to 212,250. Delivering molten metal.-Relates to the method, described in the parent Specification. of tilting a pot of glass about an horizontal axis situated near its rim in order that the contained glass may be deposited on the table of a rolling apparatus in a compact mass without laps or folds. According to the invention, the pot is transported by a travelling crane, and the gripping-device that holds the pot is provided with trunnions which engage abutments, situated near the rolling apparatus, so as to cause the pot, when lifted, to rotate about the trunnions. The apparatus may be used for supplying glass to a double-roll machine a having a teeming table b provided with a back wall c for limiting the receiving space. An overhead crane d travels on wheels e and also carries rails h on which a crab g can move. A hoisting-drum i, driven by a motor m and provided with a lifting rope k, is carried by the crab g. The pot w is gripped by a frame s which is pivoted to a yoke q suspended from the rope k by a pulley n. A removable link v is used to connect lugs u on the frame s and the yoke g in order to prevent the pot from tilting when it is being conveyed by the crane from the furnace to the rolling apparatus. The frame s is also provided with trunnions y which have a common axis passing near the rim of the pot. These trunnions are adapted to engage bifurcated abutments z which may be secured to the frame of the rolling- apparatus or to arms f which extend downwards from the crane. In use, the link v is removed when the pot is brought to the rolling-apparatus, and the pot is raised by the crane until the trunnions y engage the abutments z. Continued lifting of the pot then causes it to tilt about the trunnions and deposit the contained glass on the table b.
Patent GB-377488-A (GB)
Title: An improved slot-nozzle burner for surface hardening steel pieces
IPC: F23D14/56
Filed: 1931-09-14
Abstract: 377,488. Gas burners. DEUTSCHE EDELSTAHLWERKE AKT.-GES., 578, Gladbacherstrasse, Krefeld, Germany. Sept. 14, 1931, No. 25755. Convention date, Sept. 12, 1930. [Class 75 (i).] In a burner for surface hardening steel pieces which yields a flame having a core of uniform height and which is of the type having an outlet slot c connected with the mixing chamber by a - channel which diverges in one longitudinal section and converges in the longitudinal section perpendicular thereto so that the end dimension of the divergence represents the length, and the end dimension of the convergence the width, of the slot c, the length m of the channel is greater than the length l of the slot. The area of the slot may be less than the cross-sectional area of the entry end b of the channel. The ratio of the divergence of one longitudinal section to the convergence of the other longitudinal section may be selected so that first a gradual increase and then a gradual decrease of the crosssectional area of flow is produced between the end b and the slot. The diverging portion of the channel may be connected to a parallelsided portion of length n<1> and the converging portion to a similar portion of length n<2>, terminating in the slot. The walls of the burner may be thickened and may contain channels i for the circulation of water for cooling purposes. The burner may be supplied with acetylene and oxygen.
Patent GB-662740-A (GB)
Title: Railway track ballast excavator
IPC: E01B27/04
Filed: 1948-10-04
Abstract: 662,740. Endless-chain excavators. BOULY, H. G. (Nordberg Manufacturing Co.). Oct. 4, 1948. No. 25791/48. Class 68 (i). A railway track ballast excavator comprises a wheeled mobile base A upon which is mounted a carriage B that can move over-the base at right angles to the direction of travel of the base, and on this carriage is pivotally mounted arms 31 carrying an excavator boom C about which runs an endless belt, transversely spaced between links of which are excavator buckets 106 and side cutting elements 115. The excavator boom is moved into and out of the excavating position by hydraulic jacks 80 rotating the arms about pivots, whilst the carriage is advanced and retracted across the base by further hydraulic jacks positioned therebetween. The ballast digging edges of the buckets are provided with teeth 110, and the toothed portions of the side cutting elements are spaced further apart than the sides of the buckets and are inclined so that, as they penetrate the ballast, the loosened ballast is moved into the path of the buckets, and one or more cone-shaped bladed rotary breakers 160 are secured to the lower sprockets of the excavator boom. To these lower sprockets are secured notched rotating members which impart a sharp movement to each bucket and side cutting element to force the ballast form the cutting edges. The buckets discharge the ballast on to a belt conveyer that is mounted on the carriage, the end of this conveyer remote from the excavator boom being able to fold up for storage purposes. The endless belt is driven from a motor 19 mounted on the carriage, whilst to advance the excavator a supplementary motor rotates a winch drum 170 which hauls in on a chain 168 secured to the rail ahead of the excavator.
Patent GB-494617-A (GB)
Title: A process for improving artificial manures
IPC: C05D9/02
Filed: 1937-09-23
Abstract: Small quantities of seaweed ash are incorporated with artificial inorganic manures which are thereby enriched with iodine and magnesia.  Reference has been directed by the Comptroller to Specification 15593/11, [Class 111].
Patent GB-1454673-A (GB)
Title: Heat sealable oriented films
IPC: C08L23/10
Filed: 1974-07-11
Abstract: 1454673 Polyolefin films MOBIL OIL CORP 11 June 1974 25894/74 Heading C3P Heat-sealable oriented polyolefin films are made from compositions comprising a crystalline polyolefin, preferably a polypropylene or ethylene/propylene copolymer, and a minor proportion of a normally solid, resinous, random copolymer of pentadiene-1,3 with at least one other ethylenically unsaturated compound. The copolymer may be prepared by copolymerization of pentadiene with isoprene, cyclopentadiene, 2-methylbutene-2, t-butyl styrene, #- pinene, #-phellandrene, dipentene, α-methyl styrene or mixtures thereof in the presence of a Friedel-Crafts catalyst. The pentadiene may be provided by a piperylene-containing cracked petroleum fraction. Examples describe the preparation of films from blends of polypropylene with copolymers of (I and II) piperylene fractions, dipentene, #-phellandrene and α- methylstyrene, (III-V) piperylene fractions and t-butyl styrene, and (VI and VII) piperylene, isoprene and cyclopentadiene; and from blends of propylene/ethylene copolymer with a copolymer of (IIc) piperylene fraction, dipentene, #-phellandrene and α-methylstyrene. The piperylene fraction consists predominantly of piperylene and 2-methylbutene-2.
Patent GB-467540-A (GB)
Title: Improvements in safety razors
IPC: B26B21/52
Filed: 1936-09-24
Abstract: 467,540. Safety razors. BIBER, A., and GASTREICH, J. Sept. 24, 1936, No. 25952. [Class 30] The handle f is attached at an acute angle to a plate g adapted to be secured to the usual centre stud by a nut i and slotted at the ends to engage the guide pins d. In the form shown the handle is pivoted at m to a projecting tongue l. In a modified form the plate g engages only one guide pin ; in another form a flat handle is integral with the part l.
Patent GB-339253-A (GB)
Title: Improvements in or relating to exercising mechanisms
IPC: A61H11/02
Filed: 1929-08-26
Abstract: 339,253. Domestic Electric Co., (Assignees of Cole, J. D.). Oct. 29, 1928, [Convention date]. Driving-arrangements; casings, and supports.- The housing of an electric motor is extended along the armature shaft to house and support a worm, co-operating worm gear and part of a transverse crank shaft. The armature shaft 12 has a worm 13 meshing with worm gear 15 on a transverse shaft 14, to either end of which is secured a disc carrying a crank. The motor shaft has bushing bearings 11, 27 carried by extensions of the housing sections 2, 3 which are secured by bolts carrying the field F. The transverse shaft 14 is supported at one end by a transverse extension of the housing 10, and at the other by a bored out projection, opposite this extension, in a removable cap forming a side closure for the housing. The machine can be attached to a building part such as a door or window. The end 37 of a bracket 35 engages a window sill W and the shoe 40 of a clamping screw 39 bears on the sash W2. Alternatively, the bracket may have parallel arms which embrace opposite sides of a door stile, one arm being flanged at the end and the other carrying a clamping screw; or slots in the arms may engage the door knob shaft and a clamp may bear against the door edge.
Patent GB-532644-A (GB)
Title: Improvements in high pressure fluid containers
IPC: F17C13/02
Filed: 1939-09-18
Abstract: 532,644. Conveying gases under pressure. BOOTH, C. O. Sept. 18, 1939, No. 26081. [Class 8 (ii)] A mobile compressed gas holder comprises a cylindrical tank 5 substantially filled by a rubber bag 23 containing the gas. When the pressure becomes excessive in hot areas, the gas opens a valve 33 and passes from the valve casing 31 and pipes 34, 35, 36, 42, Fig. 3, to inflatable bags 39 in water chambers 37, and water is driven through pipes 40 to spray pipes 41 to cool the tank 5. Gas is supplied to the ring 23 by a pipe 16 fitted with a gauge, a thermometer, and the overflow valve casing 31; gas is drawn by pipe 48 from the tanks 37. Air in the tank 5, surrounding the bag 23, is expelled through outlets covered to exclude dust. An oval lid 7 on the tank is secured to a flange 11 by threaded bosses 8 anchored in the lid, engaging nuts 14.
Patent GB-866983-A (GB)
Title: Art of producing acrylonitrile polymers
IPC: C08F220/44
Filed: 1957-08-19
Abstract: A filament-forming polymer is produced by contacting an inorganic acid salt form, such as the nitrate, chloride or sulphate, of an acrylonitrile-vinyl pyridine copolymer with an alkaline liquid treating agent comprising an aqueous solution of ammonia or a volatile amine having a boiling point below 115 DEG C., the solution having a pH ranging between 8 and 11, to reduce substantially the amount of inorganic acid that is present as a salt in the polymer, and then washing the resulting polymer with an approximately neutral fluid comprising water.  The amine may be mono-, di- or tri-methyl or -ethyl or mono- or di-propyl amine. The vinyl pyridine may be 2-, 3-or 4-vinyl pyridine any of which may be substituted in the nucleus by one or more methyl or other lower alkyl groups or may be 2- or 4-vinyl quinoline.  The copolymer may also have a third monomer component such as vinyl formate, acetate or propionate, methyl, ethyl or propyl acrylate or methacrylate, acrylamide or methacrylamide, acrylic or methacrylic acid, methacrylonitrile, allyl alcohol, styrene, a ring-substituted methyl styrene or isopropenyl toluene. Specifications 706,138 and 866,982 are referred to.