baber/WOPTO huggingface dataset:
Patent GB-761417-A (GB)
Title: Method of producing plated objects
IPC: C23C8/66
Filed: 1954-09-16
Abstract: 761,417. Making composite articles. FRANSSEN, H. J. Sept. 16, 1954 [Sept. 23, 1953; June 12, 1954], No. 26849/54. Classes 83 (2) and 83 (4). Powder metallurgy ; shearing.-In a method of producing plated objects such as clutch discs and brake bands, a sheet produced by compacting metal powder, with or without sintering, is cut to the shape required and bonded to a core or backing by a sintering operation. To plate the outer part of each side of a steel clutch disc having inner teeth 7, Fig. 1, a sheet 2 of the coating material is placed on a rubber bed 4 and the required shape is stamped out by means of a former 6, Fig. 3. If the whole of the disc, including the teeth 7, is to be plated, the disc itself could be used as the former. A number of units comprising a steel disc with a coating sheet on each side may be stacked in a furnace with a layer 14 of parting material such as mica between them and with carburizing material 16 around the teeth 7. On heating at 725-825‹ C. the hardening of the teeth and the bonding of the coatings to the discs take place simultaneously. The steel discs may first be electroplated with nickel or copper to assist bonding. In order to avoid difficulties caused by the shrinking of the coating layers during sintering, the object 9 to be coated may be bonded to an oversize sheet 10 which is trimmed to size after bonding.
Patent GB-449315-A (GB)
Title: Improvements in methods of manufacturing crystalline alumina
IPC: C01F7/46
Filed: 1934-09-19
Abstract: Crystalline alumina is obtained from impure aluminous ores containing one or more of the oxides of silicon, titanium, or zirconium such as bauxite, diaspore, or calcined alunite by melting and purifying the ore in an electric furnace with the aid of a carbonaceous reducing agent and metallic iron to produce a purity of at least 96,5 per cent alumina and in the presence of not more than 2 per cent of an alkali or alkaline-earth metal sulphide, slowly cooling the melt so that the greater part of the alumina will have a grain size larger than 100 grit, and thereafter disintegrating the mass by dissolving and/or hydrolyzing the matrix glass comprising sulphides surrounding the alumina grains and separating the alumina crystals from the impurities.  The alkali &c. metal sulphide may be preformed outside the furnace and be added during purification of the melt or at the end of the purification, or the charge may comprise an alkali or alkaline-earth metal oxide, carbon for its reduction, and a metal sulphide such as iron or copper sulphide.  Preferably the charge is so constituted that less than 1 per cent and advantageously only a trace of the alumina appears as aluminium sulphide.  The glassy matrix should contain not more than 50 per cent of stable sulphides and not less than 50 per cent of water-soluble and hydrolyzable sulphides, optimum proportions being 25--40 per cent hydrolyzable sulphides, 25--70 per cent water-soluble sulphides, and not more than 35 per cent stable sulphides.  Prior to sulphide addition or formation, the melt may be over-purified with formation of a small amount of aluminium carbide.  For sulphide formation, soda ash or sodium aluminate, or calcium or magnesium oxides may be employed. Solution or hydrolysis of the sulphide matrix may take place in a closed rotating tube fitted with baffles for agitating the mass.  The crystals obtained, which may be in the main larger than 44 grit sizes, may be used for abrasive purposes, but they may first be further purified, if desired, by passage over a magnetic separator or by treatment with chemical reagents.  Specification 332,902, [Class 1 (iii)], is referred to.  The Specification, as open to inspection under Sect. 91, comprises also the following subject-matter.  The percentage of alkali sulphide in the melt may be as high as 5 per cent, and that of aluminium sulphide be not over 3 per cent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-234770-A (GB)
Title: Improvements in or relating to typewriting machines
IPC: B41J7/02
Filed: 1924-11-11
Abstract: 234,770. Rochester Industries, Inc., (Assignees of Kidder, TV. P.). May 28, 1924, [Convention date]. Type-bar machines. - In machines having toggle-actuated sliding type-bars, the platen is so located that the pressure produced during impression by the toggle mechanism is supplemented by impact pressure. Type-bars 23 have the, type-heads 22 arranged to slide on a plate 21 secured to a plate 7 which is secured to frame members 5, 6. The front ends of the type-bars are pivoted to bell-cranks 29 which are pivoted on a curved rod 19 and are connected by links 30A to key-levers 31. The bell-cranks are arranged radially and are guided by radial slots in the plate 7 and a plate 17 secured thereto by means of screws 15, 16 passing through collars. The rod 19 is mounted in the heads of the screws 15. The key-levers converge to the rear and are pivoted on a short rod 32 secured to brackets 33, 34 on a frame member 4. Letter-spacing mechanism. - A universal bail 36 in the path of shoulders 29A on the bell-cranks 29 is secured to a rock-shaft 37 connected by a link 38B to the escapement and ribbon mechanisms. A returning-spring 39 is connected to an arm 38 on the shaft and is normally almost in line with the shaft, the arrangement causing the pull of the spring to increase as the bail is depressed. The spring is effective, on release of the key-levers, to impart a quick return-movement to the bell-cranks and type-bars. Aligning for impression. - The type-bars are guided at the bottom by converging guides 24, 25 and at the top by guides 26 formed on a standard 27 on the guide 25. Carriage-shift mechanism ; shift-key actions.- The shift-frame 45 for the carriage 41 is provided with brackets 49, 50 which are pivoted to arms 47, 47A on a rock-shaft 48 and are formed with collars embracing stationary posts 51, 52. The type-bars 23 are provided with, three types, and the shift frame 45 can be raised for single and double shift by means of shift-keys 47A, 58 respectively. The single-shift key is carried by a prolongation of the arm 47, and the doubleshift key is carried by a lever 59 which is pivoted on a bracket 60A and is adapted to engage the arm 47. The shift frame is provided at the middle with a U-shaped stop member 56 provided with a stop-screw 57D which normally rests on a stop-lug 55A formed on an adjustable stop member 55 on the frame member 4. The stop member 55 is secured and adjusted by screws 53, 54 respectively. When the single-shift key 47A is depressed, the shift frame is arrested by engagement of the bottom of the stop-member 56 with the bottom of a lip 57 on a stop-lever 57A pivoted at 570 to the frame member 4. The stoplever is connected by a link 62 to the key-lever 59, and when the double-shift key is depressed, the lip 57 is moved rearwards, and the shift frame is arrested by engagement of the bottom lug of the stop-member 56 with the stop-lug 55A. Re ference has been directed by the Comptroller to Specifications 2833/91, 7055/92, 16958/95, 28015/03, and 9785/09.
Patent GB-853389-A (GB)
Title: Power transmission
Inventor: BLACK JAMES BENJAMIN
IPC: F16H41/30
Filed: 1958-08-21
Abstract: 853,389. Friction clutches; universal joints. TWIN DISC CLUTCH CO. Aug. 21, 1958, No. 26931/58. Class 80 (2). [Also in Group XXIX] The casing 18 of an hydraulic torque converter is coupled to a flywheel 12 on a drive shaft 11 by internal teeth 14 on the flywheel which mesh with external teeth 15 on a flanged disc 16 bolted to the casing, the teeth being lubricated by oil bled off from the converter. In the arrangement according to Fig. 1 oil passes through a passage 50 in the converter, over the faces of the disc 43 of a direct-drive lock-up clutch, and through bleed openings 72 in disc 16 into an annular chamber 74 in the flywheel rim, escape openings 76 being provided in the flywheel disc at a radial position which ensures sufficient depth of oil in annulus 74 to immerse the teeth. To ensure flow of oil when the clutch is engaged radial grooves are provided in one or both faces of disc 43. Engagement of disc 43 is effected by oil supplied through an inlet pipe 55 and the hollow output shaft 28 to an actuating piston 40. In an alternative arrangement, Fig. 4 (not shown), bleed openings (82, 83) are formed in the hub portions of members 35, 16 and the oil flows directly through the space between the flywheel 12 and disc 16 to the annular chamber 74.
Patent GB-1511563-A (GB)
Title: Water-insoluble hydrophilic copolymers
IPC: C08L71/02
Filed: 1975-06-25
Abstract: The present invention relates to a process for the preparation of crosslinked, water-insoluble, hydrophilic copolymers by copolymerisation of a hydrophilic homopolymer or copolymer with a hydrophobic macromer. These copolymers are suitable for use as hydrophilic membranes in separation methods, as wound bandages, body implants, for example artificial veins, furthermore as coatings on glass, metal, horn or ceramic, and as a support material for bioactive compounds.
Patent GB-1235322-A (GB)
Title: A filter
IPC: B29C48/12
Filed: 1968-06-06
Abstract: 1,235,322. Extruding filters. NORDDEUTSCHE SEEKABELWERKE A.G. 6 June, 1968 [7 June, 1967; 8 Nov., 1967; 14 Feb., 1968; 16 March, 1968], No. 27065/68. Heading B5A. [Also in Divisions B1-B2] A plastics tube of reticulate structure, comprising thick axial and annular ribs 37, 38 defining apertures bridged by thin axial and annular ribs 40, 41 (Fig. 9) is extruded continuously using a head (Fig. 11) comprising two annular nozzle supports 45, 46 with respective arrays of holes 49, 48 which form axial ribs 40, 37, the annular ribs 38, 41 being formed by moving supports 45, 46 apart a greater or lesser distance at proper intervals to allow thick or thin annular beads to pass between them.
Patent GB-241035-A (GB)
Title: Improvements in band brakes more particularly for automobiles
IPC: F16D49/10
Filed: 1924-11-13
Abstract: 241,035. Franchi, A. M. Nov. 13, 1924. Band or coil.-The brake band 6 is rapidly removable from its operating means for renewal purposes, by means of a bracket 19 at one end of which the slot 20 accommodates a pin 21 on an operating lever 22 pivoted at 22a to the chassis. Pivoted to the operating lever is a rod 23 having a nut 24 bearing on the undersurface of the slotted part 25 of the frame 12<a>; at its upper end this rod 23 is held between the cheeks of a bracket 30 on the other end of the brake band by means of a spring 26, disc 27, sleeve 28, pin 29, and threaded sleeve 32. The brake band is supported by a flat spring 8 fixed thereto and attached by screw 9 to an arm 10 which slips into a bracket 11 on the frame 12. Connected to the left side of the brake drum 5 is a bracket 13 housing springs 15 which press against a bolt 14 having a recessed rectangular end and a handled nut 16, thus pressing the band against the drum but allowing for rapid removal of the band.
Patent GB-715877-A (GB)
Title: Improvements in or relating to regeneration of ion-exchange materials
IPC: C01B33/143
Filed: 1952-10-29
Abstract: 715,877. Purifying water. STANDARD OIL DEVELOPMENT CO. Oct. 29, 1952 [Dec. 4, 1951], No. 27229/52. Class 46 The generation of cation exchange material containing alkali metal cations removed from aqueous solution is effected by treating with sulphuric acid solution of amount substantially chemically equivalent to the exchangeable ions and with sulphurous acid calculated as an monobasic acid in an amount sufficient to substantially complete the regeneration, and treating the resulting solution containing bisulphite ions to remove and recover substantially the total bisulphite content. The exchange material may comprise coal, wood lignite or petroleum sludge each having been treated with sulphuric acid, also cation-exchange resins formed by condensing aldehydes such as formaldehyde with phenols, phenol-sulphonic acids or phenol-carboxyclic acids may be used. In operation cation exchange resin in a vessel 10 and which has been exhausted in converting sodium silicate entering through an inlet 12 into silica hydrosol leaving at an outlet 14 is regenerated by an upward flow of a mixture of sulphurous and sulphuric acids supplied through a duct 16. The spent and excess mixture is fed through a duct 26 to a still 28 where the excess sulphurous acid is vaporized by a heater 29 in an atmosphere of inert gas, e.g. nitrogen supplied through a duct 30 and is thereafter returned as sulphur dioxide through a duct 24 to the duct 16. Neutral solution comprising sodium sulphate leaves by a duct 32.
Patent GB-649694-A (GB)
Title: Improvements in or relating to liquid nitrocellulose compositions and films obtainedfrom these
IPC: C09D101/18
Filed: 1948-10-22
Abstract: Nitrocellulose is dissolved in a liquid triester of a tricarboxylic aliphatic acid, all three ester groups in the molecule of which contain a radicle of a mono-ethylenically unsaturated aliphatic alcohol.  Such triesters are the triallyl esters of citric, camphoronic, aconitic and tricarballylic acids, and the trimethallyl ester of citric acid.  These compositions may contain in addition a polymerization catalyst for the liquid triesters, thus giving a substantially insoluble resinous film containing nitrocellulose in solution.  Such polymerization may be effected at moderate temperatures (70-140 DEG  C.) with no substantial loss of the triester by evaporation.  Suitable catalysts include benzoyl and succinyl peroxides and driers such as cobalt naphthenate or linoleate, the polymerization being effected by heat and/or exposure to actinic light.  In an example, to a solution of nitrocellulose ( 1/4 second, 12 per cent N2 content) in four times its weight of triallyl citrate there is added 0.1 per cent by weight of cobalt naphthenate reckoned on the weight of triallyl citrate.  The composition is cast into a film on a glass plate and heated at 80 DEG C. for 30 hours to give a transparent amber-coloured flexible film.
Patent GB-141291-A (GB)
Title: Improved gas regulator
IPC: F23D14/48
Filed: 1919-11-07
Abstract: 141,291. Aird, K., and Chalmers, R. B. Nov. 7, 1919. Atmospheric gas burners. -The gas nipple of an atmospheric burner is pro. vided with concentric series of fine apertures 4 which are closed in stages by an obturator having a spring - pressed secondary obturator head. The obturator may comprise a longitudinally-movable screwed spindle 6, the obturating head of which is provided with a secondary obturating-head 8 fitting a socket therein and connected thereto by a pin-and-slot connexion, the secondary obturating-head 8 being forced outwards by a spring.
Patent GB-292403-A (GB)
Title: Improvements in lathes with capstan and cross-slide rests
IPC: B23Q11/08
Filed: 1927-10-17
Abstract: 292,403. Heinemann, W. Oct. 17, 1927. Turning. - In a capstan lathe having a cross-slide 1, and a turret slide 2, the guides a have a surface b common to both slides, the upper parts guiding the cross-slide 1 and the lower parts the capstan 2. The slide of the capstan may be extended towards the headstock so as to project under the cross-slide, and the latter acts as a chip &c. guard for the lower guides, each slide also carrying uninterrupted chip guards 8, 9, and the capstan slide having a central aperture 3 to allow chips to pass through.
Patent GB-362034-A (GB)
Title: Improvements in the manufacture and production of impregnating and adhesive masses
IPC: C10C3/04
Filed: 1930-09-15
Abstract: Impregnating and adhesive compositions are made by heating asphaltic material such as asphalt, coal-tar or pitch, petroleum pitch, naphthol pitch or stearine pitch with one or more vegetable or animal fatty materials such as rapeseed, sesam<\>ae, castor or train oil preferably with the addition of resins, in the presence of oxygen or gases or gaseous compounds containing oxygen such as oxides of nitrogen, preferably to a temperature above the boiling point of water, for example 130 DEG  C. to 220 DEG  C., while avoiding substantial removal of organic materials by working for example in a closed vessel, under reflux, or at temperatures of about 130 DEG  C. The resins, which may be added before, during or after the oxidation, comprise natural resins such as crude turpentine and colophony or artificial resins such as coumarone resins or phenolaldehyde condensation products.  Oxidation catalysts such as the barium, cobalt, nickel and manganese salts of naphthenic, cinnamic or resinic acids may be added.  Materials such as rubber and polymerization products of diolefines or fillers such as kieselguhr, wood particles, textile or asbestos fibres may be added before or after the oxidation.  The oxidizing gas is preferably supplied in a fine dispersion, for example by passing it through sieves, baffle-plates, porous plates or filters and the reaction material may be stirred.  A waterproof material for sacks is made by joining paper to jute by means of the adhesive, or materials such as jute, linen, cotton, paper, paste-board or asbestos board may be impregnated with the composition and then combined.
Patent GB-1272298-A (GB)
Title: Covered explosive charge
Inventor: BERTHMANN ADOLF
IPC: F42B3/093
Filed: 1969-05-30
Abstract: 1,272,298. Welding by pressure; explosive forming; altering physical properties DYNAMIT NOBEL A.G. 30 May, 1969 [31 May, 1968], No. 27626/69. Headings B3Q, B3R and B3V. [Also in Divisions C1 and F3] An explosive charge for metal deformation, metal plating, metal welding or metal hardening comprises a continuous explosive sheet or strip having a uniform width and thickness throughout and whose width is greater than its thickness, the two surfaces of which sheet or strip which extend over the width thereof being in contact with, but not fast to, a material which is resistant to tearing and to rupture on bending, such contact taking place over the entire length of the sheet or strip. The material is a polyolefin, a polyvinyl halide a synthetic or natural rubber, e.g. polydiene rubbers or co-polymers of polydiene with acrylonitrile and/or styrene, crosslinked thermosetting plastics materials, or   woven fabrics made of wool, cotton, rayon, silk, acetate or cellulose fibres, or fully synthetic fibres. The fabric may be impregnated with a fibres. The fabric may be impregnated with a water-repellent substance such as polyethylene. The material may be reinforced with plastic or metal wires, cords or webs. The explosive charge comprises compositions of nitroglycerine, nitrocellulose, nitropenta, diethylphthalate and hollow spheres of phenolic resin; or, dinitrotoluene, nitrocellulose, nitropenta, diethylphthalate, minium and hollow spheres of phenolic resin; or, nitrocellulose, nitropenta, nitroglycerine, ammonium nitrate and diethylphthalate. Nitrates, chlorates or perchlorates of alkali and alkaline earth metals may also be included in the compositions. Strips of covered explosive foil can be welded, stapled or stitched together to form larger strips or explosive mats and carpets. The strips are made by extruding plastics material through an annular nozzle to  form a flexible tube, introducing the explosive foil through the centre of the nozzle and into the tube, and passing the tube through rollers to expel air. In an alternative procedure a prefabricated tube is drawn over the mouthpiece of a worm press having a slit or nozzle through which the explosive material is extruded. The   procedure may be modified by drawing two or more foils of the covering material over the mouthpiece and welding, sewing, bonding or vulcanizing them together to form a tube. Where a thermosetting material is used as the covering it is applied to the explosive foil by dipping, spraying or brushing.
Patent GB-1068725-A (GB)
Title: Electronic or electro-mechanic data processing machines
IPC: G06F7/02
Filed: 1965-06-30
Abstract: 1,068,725. Control of mechanical components. KIENZLE APPARATE G.m.b.H. June 30, 1965 [July 25, 1964], No. 27687/65. Heading G4H. A control panel 1 (Fig. 1) is moved in one direction by a toothed wheel 11 which engages toothing 3 on the panel when an electromagnetic clutch RL is switched on and in the other direction by a wheel 12 under the control of clutch VR. The required position of the panel is entered by, for example, an electronic calculator on switches A1-A5 (Fig. 3, not shown) in binary coding and compared with the actual position of the panel, markings on which are sensed magnetically or photo-electrically and entered on switches K1-K5. If the required position is to the right of the actual position in Fig. 1, a relay C is energized through contacts of switches A1-A5, K1-K5 to engage clutch VR and hence drive the wheel 12 in a clockwise direction. Similarly, if the required position is to the left of the actual position, clutch RL is engaged. When the control panel reaches the required position a relay D is energized which disengages both clutches.
Patent GB-1422506-A (GB)
Title: Halogenated meta-acetamino-henol coupling agents
IPC: C07C215/76
Filed: 1974-06-21
Abstract: 1422506 m-Acetamino-phenols L'OREAL 21 June 1974 [22 June 1973] 27696/74 Heading C2C [Also in Division D1] The invention comprises compounds of the formula wherein X is Cl or F. 2-Chloro-5-acetaminophenol may be obtained by acetylating 2- chloro-5-aminophenol with acetic anhydride. 2- Fluoro-5-acetaminophenol is said to be obtainable in an analogous manner. The compounds are useful as coupling agents in hair dyeing compositions.
Patent GB-391034-A (GB)
Title: Improvements in pottery moulding machines
IPC: B28B1/02
Filed: 1932-10-05
Abstract: 391,034. Pottery. SCHANTZ, H., 137, Wallace Avenue, New Castle, Pennsylvania, U.S.A. Oct. 5, 1932, No. 27709. [Class 87 (i).] In a pottery-moulding machine of the type having a non-rotating mould i and a rotating shaping tool a, Fig. 1, the tool is provided on one side with a resiliently supported knife b for removing the surplus clay, and on the other side with a roller g which bears on the mould i and balances the thrust of the knife. As shown, the knife b carries shanks c which are slidably mounted in a bracket d on the tool and carry springs f for pressing the knife against the mould, and the roller g is similarly mounted. The tool a may be formed as a single piece or in sections, as shown in Fig. 4; it may be strengthened by ribs l, and its cutting edge is preferably bevelled at an angle of approximately 12‹. Fig. 5 shows a complete machine comprising a pair of mould tables 11 mounted on splined rods 3 which are raised alternately into the operative position by cams 8 engaging rollers 6 thereon. The tools a are driven from the shaft 16 through the bevel gears 14, 17, and are carried by hollow shafts 13 which serve also to convey water from pipes 24 to nozzles 24a. The pipes 24 are fed from a pipe 23 through valves 19 opened by projections 22 on the cams when the tables are raised to the operative position.
Patent GB-1139679-A (GB)
Title: Improvements in and relating to apparatus for clearing tree stumps and roots
IPC: A01G23/06
Filed: 1966-06-21
Abstract: 1,139,679. Woodworking. E. POWELL. 21 Sept., 1967 [21 June, 1966], No. 27714/66. Heading B5L. Apparatus for clearing tree stumps and/or roots of felled trees comprises a rotary cutter or cutters 7 carried by supporting means comprising a swingable articulated arm structure operable to permit the cutter or cutters to be moved to demolish the stumps or roots by cutting. The arm structure consists of an arm 1 at one end connected by a pivot 13 to a turret 14 rotatable about a vertical axis, and at the other end connected by a pivot 6 to an arm 2 carrying at its outer end a cutter comprising a pair of spaced discs 7 mounting replaceable cutters 8. The cutter is driven by a chain 11 from an hydraulic motor 10, and hydraulic rams 15, 22 are provided for raising and lowering the cutter and for extending and withdrawing the arms 1, 2. A further hydraulic motor is provided to rotate the turret. The apparatus may be mounted on the platform 29 of a vehicle and operated pneumatically, electrically or mechanically instead of hydraulically.