baber/WOPTO huggingface dataset:
Patent GB-274803-A (GB)
Title: Improved process of reducing ores
IPC: C22B5/08
Filed: 1926-11-20
Abstract: 274,803. Wittek, H. July 26, 1926, [Convention date]. Dry processes of extracting metals; distilling zinc; thermo-aluminic and like metal-extracting processes.-The reduction of ores such as zinc ores is effected in combination with the manufacture of calcium cyanamide for use as manure from carbide and nitrogen: by this means the carbon and hydrogen and other reducing gases normally given off in the manufacture, together with the heat developed, are utilized, and the cyanamide is obtained free from carbide. The ores, such as calamine, mixed or stratified with carbide, may be reduced in the furnace while the nitrogenating operation is proceeding, or the latter operation may be effected in a separate furnace. Crude cyanamide containing free carbide may be purified by the reduction of ore therewith. Carbide-producing mixtures may be used instead of carbide.
Patent GB-848066-A (GB)
Title: Anti-inflammatory compositions for dental use
Inventor: GOTTFRIED SIEGFRIED
IPC: A61K31/19
Filed: 1957-08-20
Abstract: Compositions for dental use e.g. toothpastes, comprise a solid, semi-solid or liquid dental base and as anti-inflammatory ingredient one or more of the following substances; glycynhetinic acid, its active isomers and derivatives, xanthoglalrol and its derivatives. One or more analgesics and/or anti-causative-agents (as defined) e.g. neomycin sulphate, dorniphen bromide, benzalkonium chloride, dequalinium chloride, flavours and preservatives may be included. Specifications 798,655, 799,415, 843,132, 843,133 and 843,135 are referred to.
Patent GB-466941-A (GB)
Title: An improved process for preparing an aluminium oxide layer by anodic oxidation
IPC: C25D11/06
Filed: 1936-10-29
Abstract: 466,941. Electrolytic surface treatment of aluminium. LICHOFF, V. Oct. 29, 1936, No. 29409. [Class 41] An oxide layer is formed on aluminium by anodic treatment in a non-aqueous bath comprising a solution of boric acid or of an organic acid, such as citric, tartaric, oxalic or lactic acid, in glycerine or glycol, the bath also containing an ammonium compound such as ammonium carbonate. The bath is maintained at 120-140‹ C., and the current density employed is such that the anode attains a temperature of about 200‹ C. Suitable proportions for the bath are 0À5-1À5 parts of the acid and 0À05-0À5 parts of ammonium carbonate to 1 part of the solvent, this producing a viscous medium.
Patent GB-1477106-A (GB)
Title: Copying or duplicating apparatus
IPC: G03G21/00
Filed: 1975-07-14
Abstract: 1477106 Masking in photo-copying apparatus G RITZERFELD 14 July 1975 [17 Sept 1974 1 Nov 1974] 29426/75 Heading G2A An electro-photographic copying machine has a transparent support surface, masking means in a first transparent holder, an image-bearing original in a second transparent holder, the second holder being displaceable so that different portions thereof can be projected through the mask, and a carrier having images thereon which can be displaced relative to the two holders so that an image on the carrier can be copied in super-imposition with the image on the original. As shown, the transparent support surface is a glass plate 9, over which passes a transparent carrier tape 23 running between spools 24, 25, and carrying a series of images, such as for example printed forms. Over this are laid two transparent pockets 20, 19, the first having therein masking elements 26, 27, and the second having therein an original. Thus a section of the original is visible from below, through the slit 28 between the masks 26, 27. The pockets are held by respective clamps 22, 21, and clamp 21 can be displaced along a shaft 29 so that any line of the original, which is perferably arranged in a series of lines, can be brought into register with the slit 28. An electrically operated stepping mechanism Fig. 3 (not shown), controlled by selector keys on a keyboard, brings any required line on the original into register with the slit. Mask 26 may carry an image, which then becomes a permanent or "heading" image, to appear on every copy of a particular printed form. The tape 23 carries a series of images of such printed forms, and any particular one may be brought into the printing position automatically by an electro-mechanical arrangement controlled from another selector keyboard. The images to be reproduced are illuminated by a series of lamps 10, and reflected by a swivelling mirror 5 through a suitable optical system on to the surface of a conventional xerographic drum copier 2, the material then being processed in the usual way. Alternatively the superimposed images may be projected directly on to a reel of paper, with provision being made for cutting the paper into suitable lengths. Modifications include means for varying the width of the slit, and an arrangement having three masks with two slits.
Patent GB-800895-A (GB)
Title: Marine diesel lubricant
Filed: 1956-09-26
Abstract: A stable water-in-oil emulsion lubricant for marine diesels comprises by weight 10-50 per cent water, 80-45 per cent mineral lubricating oil of 45-100 S.U.S./210 DEG  F., 1-58 alkali metal hydroxide, the amount thereof being sufficient to effect a base number in the lubricant of between 10 and 100, 0.5-5 per cent of an oil-soluble detergent, 3-7 per cent of a water-in-oil emulsifier, and 0.5-1 per cent of a C16-C20 saturated fatty acid.  The oil may be any mineral oil having the above viscosity but naphthenic oils are preferred. Suitable detergents are petroleum and wax-substituted aryl sulphonates, e.g. magnesium petroleum sulphonate and barium wax naphthalene sulphonate, sulphurized or unsulphurized phenates and carboxylates, e.g. sulphurized calcium phenate, barium wax phenate and magnesium wax benzene carboxylate.  The emulsifying agents may be sulphonates, e.g. sodium mahogany sulphonate and ammonium naphthalene sulphonate, esters of high molecular weight, acids such as those obtained by the controlled oxidation of wax, or fatty acid soaps, e.g. sodium oleate, potassium stearate, and ammonium linoleate, the esters and ammonium soaps being preferred. Stable emulsions are said to be obtained only when between 0.5 and 1 per cent weight of fatty acid and between 3 and 7 per cent weight of emulsifier are used, the preferred total of acid and emulsifier being 5 per cent.  Optional ingredients mentioned are antirust agents, E.P. agents, and anti-oxidants.  In an example, a lubricant consists of 60 parts (weight) of a blend (38:62 by volume) of solvent-refined coastal oils of 150 S.U.S./210 DEG  F. and 55 S.U.S./210 DEG  F. respectively, 30 parts water, 4.5 parts of emulsifier (polyhydric alcohol esters of high molecular weight acids derived from oxidized petroleum wax), 3 parts lithium hydroxide monohydrate, 2 parts calcium mahogany sulphonate and 0.5 parts stearic acid.
Patent GB-943640-A (GB)
Title: Explosive actuated tools for driving studs or other fastener elements
IPC: B25C1/14
Filed: 1961-08-16
Abstract: 943,640. Cartridge-operated fastener driving tools. OLIN MATHIESON CHEMICAL CORPORATION. Aug. 16, 1961 [Sept. 26, 1960], No. 29618/61. Drawings to Specification. Heading B4C. The subject-matter of this Specification is substantially the same as that of Specifications 912,568, 930,025, and 936,696 but the claims are directed to the arrangement in which the lower part of the upper portion 20, Fig. 1 (not shown), of the piston member 3 is of softer metal than that of the arresting balls 15 to prevent abrupt arresting of the member 3 and in which the upper cartridge receiving end and the lower fastener-receiving end of the member 3 are case hardened.
Patent GB-359177-A (GB)
Title: Improvements relating to handles for attache, gramophone and other like cases
IPC: A45C13/26
Filed: 1930-10-04
Abstract: 359,177. AttachÚ case &c. handles. HILL, W. J., 4, St. Paul's Square, Birming- ham. Oct. 4, 1930, No. 29716. [Class 133.] An attache case, gramophone, or like carrying handle comprises a leather-covered steel strip a having one or each end slidable in a metal.housing c attached to the article by a bolt, pin, or the like d and a spike or prong c<1>, an integral tongue c<2> depending from the housing engaging a slot a<1> formed in the end of the handle. The bolt d need not pass through the slot a<1> but may be disposed at the outer end of the housing.
Patent GB-784270-A (GB)
Title: Improvements in or relating to the manufacture of technically pure -y-hexachlorcyclohexane
IPC: C07C17/38
Filed: 1955-10-19
Abstract: Technically pure gamma - benzene hexachloride is obtained by pre-extracting crude hexachlorocyclohexane with part of the mother liquor from previous solvent extractions so that the delta-isomer in total quantity equal to that present in the crude substance is carried away, treating the residue to a main extraction with remainder of liquor from previous extractions, evaporating partly and crystallizing after 5-15 per cent delta-isomer content has been reached.  In an example is described the extraction of dry crude hexachlorocyclohexane with a liquor of specified composition, methanol being the solvent and the solvent removed by centrifuging. The amount of d -isomer removed in the first solution is equal to the amount present originally in the crude mixture, not all of the delta being extracted from the crude.  In a subsequent extraction with a mixed mother liquor containing very little delta isomer, all of the delta is extracted, and the solution on evaporation until it contained 11 per cent of delta isomer after deposition of gamma isomer by cooling, was cooled to deposit the gamma isomer, which was re-crystallized.
Patent GB-268684-A (GB)
Title: Improvements in or relating to braces for agitator blades of egg beaters
IPC: A47J43/10
Filed: 1926-11-27
Abstract: 268,684. Humphrey, E. N. Nov. 27, 1926. Egg - beaters. - The agitator blades 10, Fig. 1, are braced near the ends of the straight parts 9 by means of discs 11 shaped as shown in Fig. 4, and provided with lugs 12 which are bent up to retain the blades. Fig. 7 shows an alternative form of disc, while in Fig. 10 the disc is provided with outward lugs 22 and doubledin parts 21. In further forms a separate strengthening disc is retained by doubled-in parts.
Patent GB-144961-A (GB)
Title: Improvements in and relating to process of treating filtration membrane
IPC: B01D67/00
Filed: 1919-12-02
Abstract: To prepare colloidal membranes for filtering a liquid non-miscible with water, the water in the membrane is removed by forcing through the membrane a liquid miscible both with water and with the liquid to be filtered, or by soaking the membrane in such liquid.  Thus, to prepare a membrane for filtering coal-tar or petroleum derivatives or homologues, it is treated with an alcohol or ketone or a derivative or homologue of either.  In some cases two steps may be desirable. Thus in preparing a membrane for filtering gasoline, the membrane is treated first with alcohol and then with benzol.  The process is applicable when a membrane is changed over from the filtration of one liquid to the filtration of another non-miscible with the first.
Patent GB-1439923-A (GB)
Title: Preparation of n-fluorinated organic nitrogen compounds
IPC: C07H9/04
Filed: 1972-06-27
Abstract: 1439923 N-fluorinated organic compounds RESEARCH INSTITUTE FOR MEDICINE & CHEMISTRY Inc 26 June 1973 [27 June 1972] 30128/72 Heading C2C N,N-difluoroamines of the formula (where R is an organic group) are obtained by reacting a compound of the Formula II (where R<SP>1</SP> is an organic group and R<SP>2</SP> is H or an organic group (and preferably one or both are electron-releasing organic groups) or two or more of R, R<SP>1</SP> and R<SP>2</SP> may be joined to form a divalent or trivalent organic group) is reacted with elemental fluorine or a hypofluorite in which the fluoroxy is bound to an inert electron attracting group. When the compound II is reacted with one equivalent of the fluorinating agent and the reaction product is hydrolysed, a N-monofluoramine RNHF or salt thereof is obtained. Novel compounds, 1-difluoroaminoadamantane and (+)- and (-)-l-phenyl-2-difluoroaminopropane are obtained by the above method. Preparation of intermediates is described: N - (1 - adamantyl) - p - fluorobenzamide; ( + ) - N - (1 - phenylisopropyl) - benzamide and corresponding p - fluorobenzamide, N - stearylbenzamide, O,N - dibenzoyltyramine, α- adamant - 1 - ylimino - α - ethoxy - p - fluorotoluene, (-) - α - (1 - phenylprop - 2 - ylimino)- α- ethoxytoluene and its p - fluoro compound, α - ethoxy - α - stearyliminotoluene, α - (adamant - 1 - ylimino) - toluene and p - methoxy derivative.
Patent GB-167444-A (GB)
Title: A hydraulic windlass for drop-stamping machines
IPC: B21J7/44
Filed: 1920-10-25
Abstract: 167,444. Soc. d'Outillage Mecanique et d'Usinage d'Artillerie. Aug. 5, 1920, [Convention date]. Power hammers.-The lifting drum C of a drop stamp is actuated by pressure water acting on one or more rack cylinders F which engage pinions on the drum shaft D and are adapted to move over fixed plungers G. A passage in each plunger is connected to a distributor K having valves S, T to connect to supply and exhaust. The valve stems are connected to a lever P, plunger O and lever M which is operated at one end by the usual hand cord N and at the other by a cam Z on the drum shaft. When the tup is in its iowest position the end m is raised by the cam and both valves are closed. If the cord is pulled, the valve S is opened so that the tup commences to rise; rotation of the cam gradually closes the valve S unless the cord is pulled further. If the cord is released when the tup is raised the plunger O falls below its normal position and the exhaust valve T is opened so that the tup falls and the cam again raises the end m. The tup belt A is attached to the drum at such a point B, Fig. 3, that it is not tangential when the lift commences.
Patent GB-432841-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/00
Filed: 1934-10-22
Abstract: 432,841. Tobacco pipes. HUGHES, C. R., Varden House, Wilmslow Park, Wilmslow, Cheshire. Oct. 22, 1934, No. 30174. [Class 130] The bowl a of a pipe is divided horizontally at a point just below the bore of the stem e, the lower part b of the bowl being shallow and connected to the upper part by a spigot or screwed joint. A recess b<2> in the part b is fitted with a replaceable absorbent lining, and a perforated grid c is fitted between the parts a, b. The rounded outer face of the part b is milled or formed with a transverse groove to facilitate removal.
Patent GB-432871-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/04
Filed: 1933-10-31
Abstract: 432,871. Discharge devices. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Steiner, H. C. ; 102, James Street, Scotia, New York, U.S.A.) Oct. 31, 1933, No. 30241. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 22, 1934]. [Class 39 (i)] In order to prevent contamination of a vaporizable material such as mercury by the flaking off of an oxide or other compound of a metal, such as copper or iron, forming the anode or other electrode, the surface of the electrode in contact with the vapour is coated with chromium. An intermediate coating of nickel may be formed on a copper electrode. The anode may form part of the envelope, and both sides may be coated, e.g. electrolytically, the tapered edge, forming the seal, being left uncoated.
Patent GB-346323-A (GB)
Title: Improvements in wire stitching machines and the like
IPC: B27F7/21
Filed: 1929-10-05
Abstract: 346,323. Stapling-machines. MARKS, J. G. de J., 43, Mapesbury Road, Shoot-up- Hill, London. Oct. 5, 1929, No. 30254. Convention date, April 9. Void [Published under Sect. 91 of the Acts]. [Class 89 (iii).] Machines using continuous wire and strip metal.- In a wire-feed mechanism for a stapling machine, the wire is pressed against the surface of a freelymounted feed drum by two pawls, one of which is carried by a lever which is oscillated from the inserting mechanism of the machine. As shown, the wire 33 passing from the spool 31 is looped round a curved surface 50 and passes to the surface of a drum 35 freely mounted on a spindle 36. A brake 53 engages the wire on the spool. The wire is pressed against the drum 35 by pawls 45, 44. The former prevents back movement of the wire. The latter is pivoted to the tail 42 of a lever 37 which is freely mounted on the spindle 36 and has arms 38, 39 between which lies a roller 40 mounted on the plunger 5a of the staple forming and inserting mechanism. An arm 49 on a member 48 mounted on the spindle 36 underlies, and prevents looping of, the wire 33 below the drum 35. The roller 40 is so arranged that the feed of the wire does not occur until the forming and inserting instrumentalities have risen from their operating positions. The wire is fed by a guide 46a over a cutting block 30 into position over an anvil 20. The latter is cylindrical in form, with its front end cut away at 21 to form a flat face 23 for the wire. It is held forwardly by a spring 24, and is retracted, when a staple has been shaped, by a pair of levers 25 operated by the shaping devices. These comprise outside formers 10, 11, of which the latter constitutes a cutter. The formers are fixed to a slide block 9, which is engaged, and moved into shaping position, by a latch member 16 as the plunger 5a descends. When the block 9 has descended far enough, it is disengaged from the plunger by a nose 17 on the latch entering a recess 18 in the framing, against the action of a spring plunger 19.
Patent GB-1379017-A (GB)
Title: Thyristors
IPC: H01L23/051
Filed: 1973-06-26
Abstract: 1379017 Thyristor assembly SIEMENS AG 26 June 1973 [21 Sept 1972] 30342/73 Heading H1K A thyristor comprises a semi-conductor wafer 6 with a trigger electrode on one face, located in a housing (Fig. 1) constituted by an insulating, e.g. alumina ring 1 and end plates 2, 3 attached to its ends, e.g. via metal rings 4, 5 of nickeliron-cobalt alloy, the trigger electrode being contacted by a conductor 9, one end of which fits into a socket 15 in the housing wall and the other end of which is bent to form a spring 10 located in a recess 8 in auxiliary metal member 7. Conductor 9 abuts at one end the trigger electrode and at the other an abutment, e.g. insulating plate 11 adjacent the outer face of member 7. The conductor, an insulated part of which lies in a slot 13 communicating with the recess, is of beryllium bronze and is held in place by a resilient insulating sleeve 12 press-fitted into the recess. In manufacture the conductor is first assembled in member 7 via recess 8 and the resulting sub-assembly placed with the spring end engaging the trigger electrode of the wafer which rests on or is soldered to member 3 forming part of sub-assembly 1, 3, 5, 15. The plate 3 is fitted and soldered or welded to insulating ring 1 via ring 4.
Patent GB-369241-A (GB)
Title: Improvements in or relating to the manufacture of reinforced blocks, plates, slabs and other shaped bodies
IPC: C04B28/04
Filed: 1930-10-10
Abstract: 369,241. Cellular concrete. BERRY, A. F., Wellington House, Strand, London. Oct. 10, 1930, No. 30374. [Classes 22 and 70.] Blocks, slabs bricks, &c. of a con. crete rendered cellular by internal generation of gas are strengthened by reinforcements which extend through or around substantially their whole length, breadth, and thickness. The reinforcement may be internal, for example interlocking metal strips as in Figs. 1, 3, and 4, or external, for example a baked clay container with a lid, Fig. 6, or both. Other materials such as asbestos-concrete may be used for the reinforcement, which may take other forms, e.g. hollow, wavy, angular. The concrete consists of Portland or other cement mixed with broken burnt clay, or asbestos &c., and a small quantity of finely divided alloy or metal, e.g. aluminium, with optionally a chemical agent such as sodium hyposulphite. The concrete is wetted, packed into or around the reinforcement, and allowed to rest, preferably in a warm state, while gas is generated. The unset blocks may be enclosed in a chamber and subjected to (1) reduced pressure to promote coarseness of cell, (2) warm air for drying, (3) a fluid hardening medium, e.g. a solution of magnesium silico-fluoride or sodium silicate, as described in Specification 365,154. The blocks may be covered with cement, plaster, paint, &c., veneer, leather or fabric.
Patent GB-303992-A (GB)
Abstract: 303,992. Irwin, J. T. Dec. 9, 1927. Current meters; electrostatic meters.- Bifilar oscillographs damped by a resonant shunt have the movement of the mirror constrained by a pivot formed by a member backing against the mirror between the stretched wires. In one arrangement, Fig. 2, a knife-edge plate K lies against the back of the mirror M between the wires F<2>, F<3> and bridgepieces B<1>, B<2>. A screw provided with a needlepoint P, Fig. 3, may be employed and a piece of thin material may be located between the mirror and point P to damp out unnecessary vibrations. In an electrostatic meter, the screw, which is then made of insulating material, passes through one of the inductances I. Specification 111,885 is referred to.
Patent GB-1488054-A (GB)
Title: Doll head for excreting fluid therethrough and method of making same
IPC: A63H3/24
Filed: 1975-07-21
Abstract: 1488054 Dolls head MARVIN GLASS & ASSOCIATES 21 July 1975 [26 Aug 1974] 30459/75 Heading A6S [Also in Division B5] A doll head 10, (Fig. 2) comprises a flexible shell made of plastics material, an interior wall 29 defining with said shell a fluid reservoir delimited by wall 26, holes 40 in the facial area of the doll head, for the passage therethrough of fluid from said reservoir to simulate perspiration, and means 30 for receiving fluid into said reservoir. Fluid such as water may be introduced into the reservoir from a device comprising a flexible syringe portion (34) Fig. 5 (not shown) and a needle portion (36) which is inserted through a flap valve 30 formed by cutting a slit in the mouth of the doll head. The head may be located on a suitably shaped torso 12 and fluid can be caused to flow through the apertures 40 by squeezing the head. The head may be made using a mould Fig. 6 (not shown) comprising a shell type head mould (46) and a base mould portion (48). A measured amount of heat curable vinyl plastics material is introduced into the shell type head mould (46) and the base mould portion (48) secured in place by screws (65). The mould is then heated and simultaneously rotated so that the internal surfaces of the mould become coated with the plastics material which is cured by the heat. The head can then be removed from the mould and the orifices 40 and flap valve 30 formed. By reducing the amount of plastics material used, the chambers delimited by walls 26 and 27 may be formed in communication with each other.