baber/WOPTO huggingface dataset:
Patent GB-748241-A (GB)
Title: Improvements in and relating to printed electric circuit construction
IPC: H05K3/06
Filed: 1953-12-02
Abstract: A material which acts as a resist during an etching process and as a flux during a soldering process may consist of a solution of rosin in alcohol, or of a solution of rosin, ester gum, resinous chlorinated paraffin and, optionally, a non-corrosive flux. Suitable proportions by weight are:- .Rosin.37,5 per cent.30,0 per cent .Ester Gum.37,5 per cent.30,0 per cent .Resinous chlorin.. .ated paraffin.1,5 per cent.0,21 per cent .Non-corrosive flux.-.20,0 per cent .Solvent.23,5 per cent.19,79 per cent The solvent may consist of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and ethyl lactate, suitable proportions by volume being: .Ethylene glycol monobutyl ether.40 per cent .Diethylene glycol monobutyl ether.40 per cent .Ethyl lactate.20 per cent Specification 747,629, [Group XXXVI] is referred to  Reference has been directed by the Comptroller to Specification 639,178, [Group XXXVI].
Patent GB-1482702-A (GB)
Title: Pneumatic tyre
IPC: B60C11/01
Filed: 1974-07-29
Abstract: 1482702 Pneumatic tyres UNIROYAL Inc and UNIROYAL 29 July 1974 [18 July 1974] 33485/74 Heading B7C Each shoulder region of a pneumatic tyre is provided with an annular rib 16, 18 in which a respective edge of a breaker 22 is located. The ribs include surfaces 52, 54 positioned radially inwardly of the tread surface 44. The surfaces 52, 54 may be inclined, or substantially parallel, to the tyre axis and may be smooth (as shown) or provided with a tread design (Fig. 3, not shown). The breaker is preferably supported in its edge regions by annular inserts 38, 40. The carcass 4 may include a single ply of radial cords or two or more plies in which the cord angle for each ply is between 70 degrees and 90 degrees to the midcircumferential plane. The cords may be metal, nylon, rayon, polyester or glass fibre. The breaker plies each include parallel cords with a cord angle for each ply of 15 degrees to 30 degrees to the midcircumferential plane. Alternatively the cords may be substantially parallel to that plane. Annular inserts 38, 40 are formed of rubber having a modulus greater than 100 kg/cm.<SP>2</SP> and a tensile strength greater than 160 kg/cm.<SP>2</SP>. This rubber may be reinforced by fibres of steel, polyester, or fibreglass. Where the ribs each include a tread design, such may engage the road when the tyre is underinflated to generate noise or vibration indicative of such underinflation. Circumferential grooves (70, 72) (Fig. 4, not shown) may be provided adjacent the ribs.
Patent GB-884136-A (GB)
Title: Improvements relating to tools for unwrapping wrapped electrical connections
Inventor: CUNNINGHAM ROBERT KINCAID
IPC: H01R43/033
Filed: 1959-10-03
Abstract: 884,136. Unwrapping wrapped electrical connections. FERRANTI Ltd. Oct. 3, 1960 [Oct. 3, 1959], No. 33580/59. Class 61. A tool for unwrapping an electrical connection comprising a wire 6 wrapped tightly round a terminal pin 7, is provided with a tubular portion 3 the end 4 of which has a helical groove. The wall thickness of the end 4 at the end turn of the groove is such that on placing the end of the tool over the terminal pin 7, rotation of the portion 3 causes a free end of the wire to be transferred from the pin to the tubular portion 3. As shown the tubular portion 3 is attached to a handle 1 having an extension 2. In a modification for unwrapping connections between two adjacent sub-assemblies, a power-driven tool is provided having two spaced tubular portions rotatable in the head of the tool, each tubular portion having a helical groove. In another modification the tubular portion is tapered towards one end. The Provisional Specification states that the bore at the free end of the tubular member may be flared slightly.
Patent GB-1190651-A (GB)
Title: Improvements in or relating to Throttle Valves.
Inventor: SELF RICHARD ERNST
IPC: F16K25/04
Filed: 1967-07-21
Abstract: 1,190,651. Valves. R. E. SELF. 21 July, 1967, No. 33688/67. Heading F2V. A valve has a seat port 23 with an annular recess 36 formed therearound, and a resiliently deformable sealing ring 41 of plastics or metal disposed therein, a sleeve 42 positioned in the port and having a lip 43 abutting the ring and restricting movement away from a surface 24, a spindle 12 supporting a closure member 52 so as to be movable axially, the closure member having a shoulder 59 of external diameter equal to the external diameter of the lip 43, and engageable with an end face of the sleeve to progressively cause the lip to compress the ring 41 into the recess 36, and the shoulder 59 to enter the seat port 23. Excess axial movement of the sleeve 42 is prevented by a snap ring 48 engaged in a groove 46 in the port, and a recess 47 in the sleeve.
Patent GB-844205-A (GB)
Title: Improved fluid pressure power steering mechanism
IPC: B62D5/24
Filed: 1958-10-22
Abstract: 844,205. Vehicle power steering. GENERAL MOTORS CORPORATION. Oct. 22, 1958 [Nov. 12, 1957], No. 33757/58. Class 79(5). A control valve for fluid pressure power steering of a motor vehicle comprises two elements 42, 44 which are rotatable, have a resilient lost motion connection therebetween and are maintained in close end-face-to-end-face relationship, the opposed end faces of the elements having a plurality of pockets to control the flow of fluid between a pump 70 and the ends 88, 90 of a cylinder 10..The element 42 is rigidly connected by pins 46 to a flange 40 on a stub shaft 34 flexibly coupled at 30 to the steering shaft 32. Lugs 48 on the flange 40 engage grooves 50 in the element 44 to limit the lost motion while a pair of U-shaped springs 110 seated in recesses in the element 44 and having their arms in similar recesses in the element 42 prevent the lost motion from occurring until the steering resistance is sufficient to cause the springs to yield. Relative movement between the elements 42, 44 causes a pair of ports 76 located in the element 44 and supplied by the pump 70 to supply more fluid to one of two pairs of ports 82, 84 by way of pockets 78 in the member .42 while connecting the other pair of ports more freely to exhaust by way of pockets 102. The ports 76 are connected to the pump by passages 73, 74 while the pockets 102 are connected to a reservoir 72 by a groove 106, a bearing space 104 and a passage 108. The pairs of ports 82, 84 are connected to opposite ends of the cylinder 10 which contains a piston 12 forming part of a recirculating ball steering mechanism. Fluid pressure in a space 80 holds the elements 42. 44 in contact.
Patent GB-1306907-A (GB)
Title: Heating device
IPC: H05B3/14
Filed: 1971-07-19
Abstract: 1306907 Heating resistors DANFOSS A/S 19 July 1971 [14 Aug 1970] 33853/71 Heading H5H A P.T.C. heating resistor is immersed in liquid to raise its power output. As shown P.T.C. resistor 1 is mounted in a casing 3 filled with oil, the casing being secured to the underside of a hot plate 8. A sheet metal plate 10 secured to one wall of casing 3 deflects to compensate for changes in oil volume.
Patent GB-896656-A (GB)
Title: Copolymerization process and products therefrom
IPC: C08F230/08
Filed: 1960-10-03
Abstract: A silicon-containing thermoplastic copolymer of an ethylenically unsaturated aliphatic hydrocarbon containing two to five carbon atoms and an organohalosilane of the formula R Si(R1)3-n Xn in which X is a halogen atom, n is an integer from 1 to 3, R is a hydrocarbon radical, containing ethylenic unsaturation, and R1 is the same as R, or hydrogen, or a saturated hydrocarbon radical, and which copolymer contains from 0,00001 to 0,1 parts by weight of silicon per part of carbon, are made by polymerizing a mixture of the hydrocarbon and silane monomers in the presence of a catalyst comprising a component selected from elements of Group I, II, or III of the Mendeleeff Periodic Table, metal alkyls, metal alkyl hydrides, or metal alkyl halides thereof, and mixtures thereof, and a component selected from halides of elements of Group IVa, Va, or VIa, of the Periodic Table. The silicon-containing copolymer may be hydrolyzed, and cross-linked for example by heating.  The hydrocarbon may be ethylene, propylene, butene, isobutylene, or pentene.  The preferred silanes are vinyltrichloro-, divinyldichloro-, vinyldimethylchloro-, p-allylphenylethyldichloro-, p-vinylphenyltrichloro-, allylmethyldichloro-, and vinyldiphenylchloro-silane.  Examplified catalysts are triethylaluminium and vanadium tetrachloride, triisobutyl aluminium and TiCl3, or 3TiCl3.AlCl3, and triethylaluminium and a mixture of 75% TiCl4 and 25% of VOCl3.  The copolymerization is generally effected in a hydrocarbon, or a halogen-containing hydrocarbon solvent or diluent.  The hydrolysis of the copolymer can be carried out in the presence of water, methanol, t-butanol, phenol, ethylene glycol, hydroquinone, thiols, amines, dibasic acids, or organophosphines.
Patent GB-282416-A (GB)
Title: Improvements in method of extracting the volatile constituents from carbonaceous materials
IPC: C10B1/04
Filed: 1927-12-14
Abstract: 282,416. Parker, R. B. Dec. 14, 1926, [Convention date]. Drawings to Specification. Retort furnaces; charging and discharging. - The apparatus is identical with that forming the subject-matter of Specification 282,415. Specifications 107,824, 154,658, 282,417; 282,418 and 282,419, [both in Class 55 (i), Coking &c.], are referred to.
Patent GB-1082268-A (GB)
Title: A forming machine for producing articles having concave and convex sides
Inventor: VILTSCHEK ENDRE
IPC: B21D22/18
Filed: 1965-08-06
Abstract: 1,082,268. Spinning. TECHNOIMPEX MAGYAR GEPIPARI KULKERESKEDELMI VALLALAT. Aug. 6, 1965, No. 33903/65. Heading B3J. A machine for forming a dished end 1 comprises a rotatable support 2 for the blank, a driven roller 10 and an idle roller 5, the rollers being mounted on brackets 6, 7, both of which are pivotable about pins 8, jointly, or separately, and a follower and template 3a, 3b, for controlling the feed of roller 5. Roller 10 is rotated at a variable speed by a motor 12, and worm gear 11, and bracket 7 is pivoted by a cylinder 13 on each side thereof. The brackets 6 and 7 are interconnected by a pin 14, and bracket 7 is rigidly connected to pins 8. In operation, the brackets are interconnected, roller 10 is driven and one of the cylinders 13 is actuated, so that the rollers move over the blank to thus form the large radius. Pin 14 is disengaged, the movement of roller 5 is stopped, and the movement of roller 10 presses the rim of the blank against roller 5.
Patent GB-1299083-A (GB)
Title: A component capable of being secured to a panel
Inventor: MARTIN REX
IPC: F21V17/00
Filed: 1969-07-07
Abstract: 1299083 Lamps JOSEPH LUCAS (INDUSTRIES) Ltd 23 April 1970 [7 July 1969] 34131/69 Heading F4R [Also in Division E2] A fastening device for securing a warning lamp assembly to a panel comprises a body 11 including a pair of torsion bars 16, 17 on opposite sides of the body and spaced therefrom, a central, outwardly projecting lug 18, 19 on each of the torsion bars the distance between the outer edges of the lugs being greater than the width of a hole in a panel 26 into which the device is to be inserted, and a retaining member 21 engageable with the body 11, the retaining member being engageable with the panel around the hole therein and having a pair of, resilient fingers 24, 25 which extend between the lugs and the body respectively when the member is engaged with the body each finger having a portion which engages one of the lugs respectively to resist disengagement of the body from the retaining member and in use, the body 11 and retaining member 21 are interengaged and the body is inserted through the hole in the panel, the lugs engaging opposite sides of the hole and the torsion bars 16, 17 being twisted to permit the lugs to pass through the hole, the torsion bars then restoring the lugs to their original positions so that the lugs engage the undersurface of the panel and the retaining member engaging the upper surface of the panel so that the lugs and the retaining member secure the body to the panel. The body 11 and the retaining member 21 are made of moulded synthetic resin. The body may have three lamp holders 12 and three curved reflectors 13. The retaining members may have a central lens portion 22.
Patent GB-1182380-A (GB)
Title: Sound Horn
IPC: G10K11/28
Filed: 1968-07-18
Abstract: 1,182,380. Horns. FORD MOTOR CO. Ltd. 18 July, 1968 [19 July, 1967], No. 34196/68. Heading G5J. In a vehicle horn, the path length taken by the sound waves in two adjacent spirally-shaped air passages 18, 42, Fig. 3, located in horn sections 16, 38 respectively (Fig. 1) is adjusted during assembly to suit the resonant frequency of a vibratory diaphragm 14. Sound-waves generated by the diaphragm 14 are reflected into the passage 18 by a wall 28. The air passages 18, 42 are separated by a flat plate 60 having located in it an aperture 70 (Fig. 3) to connect the passages. Immediately behind the passages, and attached to the plate 60, e.g. by rivets, is a V-shaped deflector 80, having one leg in each passage, the deflector functioning to direct sound waves from the passage 18 back down the passage 42 along the path shown in Fig. 3, from which they are further deflected into the trumpet 52 by a wall 50. The plate 60 is tightly held between the two sections 16, 38 of the horn, the position of the plate being determined before the rivets clamp the assembly together; thus the position of the aperture 70 and the deflector 80 can be selected. Extremities 96, 98 of the deflecting legs seal the air passages, and a screen 54 excludes dirt and water. All the deflecting walls are preferably at 45 degrees to the air passage axes, and each air-passage length is made substantially equal to one eighth of the sound wavelength. The V- shaped deflector 80 may be separate from the plate 60, and may be positioned by flat shelves or projections in the walls of the air passages.
Patent GB-307453-A (GB)
Title: Improvements in liquid and gas contact apparatus
IPC: B01D47/16
Filed: 1928-11-21
Abstract: 307,453. Bartlett Hayward Co., (Assignees of Wagner, F. H.). March 8, 1928, [Convention date]. Scrubbers and washers.-Gas admitted at 2 rises through a casing having perforated diaphragms 5 so as to contact with liquid sprayed by rotating plates 13 adjacent openings in the diaphragms. The plates are level with or slightly below the perforated diaphragms 5 in each section so that the subdivided gas under pressure meets a transverse liquid stream. A stationary wire screen may be supported above each diaphragm, which has a gutter 7 at its outer edge to receive dust &c. Pipes 24 with adjustable tops 25 lead water from pockets 23 in the gutters to loose caps 19 on the shaft 9 and through funnels 14 rotating on the shaft on to the plates 13 next below. Liquid is led into the casing by one or more pipes 20, 20a and withdrawn by pipes 8, 26. The gas rises past a cone 9 to an outlet 3. Rods 18 fixed on the casing and rods 17 rotating on the shaft further mix the gas and liquid, to which ferrous or aluminium sulphates may be added as flocculating agents, preferably with calcium or sodium carbonates.
Patent GB-1133635-A (GB)
Title: Chlorinated polyolefin flashing in building construction
Inventor: CORNAY CLEMENT JOSEPH
IPC: C08L23/28
Filed: 1966-07-29
Abstract: 1,133,635. Chlorinated polymer laminates. DOW CHEMICAL CO. 29 July, 1966 [2 Aug., 1965], No. 34250/66. Heading B5N. [Also in Divisions B2 and C3] Flashings for the construction or repair of buildings comprise a sheet of a chlorinated polymer containing at least 90 mole per cent of ethylene units and having a chlorine content of 25 to 50 weight per cent and a relative crystallinity of 15 to 28% at 25% chlorine and less than 10% at 34 or more per cent chlorine with corresponding values at intermediate chlorine contents, laminated to one or more self-supporting reinforcing materials. Specified reinforcing materials are woven and non-woven fabrics of glass, wool, cotton, hemp, jute, polyamide, polyester and acrylic polymer fibres. The ethylene may be copolymerized with propylene, butene, 1,7-octadiene, cyclopentene, 1,5-cyclo-octadiene, acrylic acid or esters, butadiene or styrene; and the chlorinated polyolefin may be mixed with fillers, e.g. carbon black, titanium dioxide, magnesium silicate, polyvinyl chloride, clay, calcium sulphate, mica, pulverized marble or limestone, asbestos, cork or wood flour; stabilizers, e.g. lead, tin, barium, cadmium, zinc and sodium salts, organic phosphites and epoxidized and non-epoxidized oils; and flame retardants, e.g. antimony oxides, tetrabromophthalic anhydride, perchloropentacyclododecane, tris - (2,3 - dibromopropyl) phosphate and tetrabromo bisphenol A.
Patent GB-1072168-A (GB)
Title: Method of and apparatus for assembling universal joints
IPC: F16D3/40
Filed: 1964-08-21
Abstract: 1,072,168. Making universal Joints; Jointing by forging; assembling force fits. W. SCHAEFFLER and G. SCHAEFFLER [trading as INDUSTRIEWERK SCHAEFFLER oHG.]. Aug. 21, 1964 [Aug. 27, 1963], No. 34267/64. Headings B3A, B3H and B3U. A fork-ended shaft 1 of a universal joint is held between members 29 and the joint spider 5 is mounted in a guide and centred with respect to bores 9, 10 in the fork arms 2, 3. An hydraulic ram 20 and piston 31, presses a bearing 13 into the bore 9 until it reaches an abutment on a trunnion 7 of the spider 5. A holding clip 14 is anchored at one end to the hydraulic cylinder and a hook 16 at the other end bears on the arm 2 and so equalizes the loads thereon. Meanwhile hydraulic fluid is fed to a chamber 45 via conduit III to raise a member having an adjustable wedge 40. The surface 41 engages a complementary surface 36 of a spring-loaded sleeve 35 without compressing the spring 37. When the bearing 13 abuts on the trunnion 7 the pressure in the chamber 42 is increased and the piston 31 overcomes the spring 32 thereby sliding over the ram 20. A caulking ram 46 on the piston 31 is forced into the bore 9 and the cylinder 30 moves outwardly until a face 34 thereon abuts the wedge 40. Hence the bore 9 is deformed so as to retain the bearing in position (see left-hand side of Figure). Two or all four bearings may be positioned in the spider simultaneously. Alternatively the rams 20, 46 may be formed as a single unit so that as the bearing is pressed into the bore, the latter is simultaneously deformed (Fig. 7, not shown). In a further embodiment, as the outer ram slides over the inner ram a retaining washer in the bore is deformed to retain the bearing in position (Fig. 5, not shown).
Patent GB-208378-A (GB)
Title: Improvements in yarn doubling, winding and like machines
IPC: B65H59/16
Filed: 1922-12-15
Abstract: 208,378. Bottomley, E. Dec. 15, 1922. Tension arrangements.-In machines for winding yarns or threads b, c from cops on to " two-end " cheeses or cones a tension device is provided so that anv increase or decrease in tension imposed on one thread causes a corresponding increase or decrease in the tension of the other thread. The device comprises a glass or like rod e, and a lever h pivoted at i and provided at its ends with guides f, g through which the threads pass. The lowering of one end of the lever h, increases the arc of contact of the thread passing through that end with the rod e, and takes up any slack thread, while the raising of an end decreases the are of contact and pays out a length of thread to reduce the tension.
Patent GB-1328313-A (GB)
Title: Apparatus for developing an electrostatic latent image on continuous web material
IPC: G03G15/10
Filed: 1971-07-21
Abstract: 1328313 Liquid developing apparatus FUJI PHOTO FILM CO Ltd 21 July 1971 [21 July 1970] 34311/71 Heading G2H An electrostatic latent image bearing web 1 is passed around electrode drums 11, 13, 14, 16 and between support rollers 12, 15 and curved electrodes 17, 18 and is developed by liquid developer pumped through nozzles 31-37. The electrode drums have flanges 302 (Fig.3) which space the web from a conductive core 301. Preferably a flat electrode is provided between drums 13 and 14. The electrodes may be electrically biased (optionally with different potentials) for reversal development. Rollers 41-44 clean the electrode drums. The web may be moistened before development and rinsed after development by liquid pumped through nozzles 51-54. The web may be continuously or intermittently advanced. In Fig. 6 (not shown) the web is intermittently advanced through charging and exposure stations, and continuously advanced through the developing station.
Patent GB-881759-A (GB)
Title: An improved magnetostatic selecting device
IPC: H03K17/81
Filed: 1958-10-27
Abstract: 881,759. Magnetic amplifier selector circuits ; automatic-exchange systems. COMPAGNIE INDUSTRIELLE DES TELEPHONES. Oct. 27, 1958 [Oct. 28, 1957], No. 34335/58. Classes 40 (4) and 40 (9). A magnetic amplifier selection circuit comprises magnetic amplifier R1 . . . Rn, Fig. 1, each provided with a positive feed-back winding ell . . . enl to make it bistable, whose outputs are fed in parallel to the back-biasing windings el5 . . . en5 of all the magnetic amplifiers. Each magnetic amplifier is provided with control windings such as e13, e14 tending to switch it on and off respectively, and a biasing winding a 12 so supplied that the bistable characteristic of amplifier and positive feed-back winding is as shown in Fig. 2. On a control current being fed to a winding e13 say, the amplifier moves from point O to point P1 on its characteristic, whereupon the output current flowing through e15 e25 . . . . en5 moves the first amplifier back to point P2 and the remainder such as R2 back to point A1 from which point the amplifier R2 cannot be operated by a control current in winding e23. If two amplifiers are operated simultaneously the two outputs combined, operating in coils e15 . . . en5 move the operating point of the operated amplifiers to the point O whereupon both are de-energized. With both control coils still operated, the fastest operating amplifier then operates to block the other as described above. The equipment may be used to select one of a number of calling circuits, or one of a number of free lines in a given direction in an automaticexchange system. Specifications 791,372 and 871,623 are referred to.
Patent GB-343961-A (GB)
Abstract: 343,961. Band conveyer drying- apparatus. HART, B., 7, Whiterock Gardens, Belfast. Nov. 25, 1929, No. 35980. [Class 34 (ii).] Apparatus for feeding and drying grain comprises a hopper 2 into which the grain is fed from a cooker, crushing rollers 6 beneath the hopper, and drying- apparatus comprising an endlessbelt 8 in a chamber 7, the hopper having a discharge slit 3 disposed above the crushing rollers and the conveyer and extending across the width thereof so that the grain is evenly distributed. The dimensions of the hopper permit the grain covering the discharge slit when the former assumes its natural angle of repose. A fluted feed-roller 9 may assist the discharge of grain through the slit, and the side 5 of the hopper may be adjustable in order to vary the width of the slit. The conveyer may discharge on to another conveyer in order to turn the grain. The drying medium has access to the rollers.