baber/WOPTO huggingface dataset:
Patent GB-553868-A (GB)
Title: Improvements in and relating to flexible hose couplings
IPC: F16L33/01
Filed: 1941-10-04
Abstract: 553,868. Pipe joints. MELSOM, W. A., and BOWDEN (ENGINEERS), Ltd. Oct. 4, 1941, No. 12840. [Class 99 (i)] In a coupling for pressure hose having inner- and outer layers 4, 5 of rubber or like material and one or more intermediate layers 6 of reinforcing material fluid-tightly sealed against an. insert 2 by contracting an outer sleeve 1, thesleeve 1 is so powerfully contracted at the zone 8 as to bare the reinforcement on both sides and grip it between the sleeve and a rib or groove 9 on the insert. A ring of the outer or the innerlayer of the hose may be removed before contracting the sleeve on the hose. The sleeve and insert may be of brass, aluminium alloy, lowcarbon steel, or phosphor bronze, and the reinforcement 6 of canvas or high-tensile wire braiding or both. As shown, the displaced rubber fills a cavity 13 in the end of the sleeve, which is also contracted at zones 7, 17 and may be flared at 18. The insert 2 has a coned or like end 19 to which a counterpart member is secured by a nut 20. In modifications, (a) the insert terminates in an elbow provided with a coned or like end provided with a nut such as 20 ; (b) the end of the sleeve 1 or of an elbow on the insert is externally grooved and has axial slots to enable it to pass through the aperture formed by the shoulder of a nut such as 20 and then to be expanded to prevent removal of the nut ; (c) the nut is rotatably mounted on the insert in other ways, for example as described in Specifications 540,489 and 540,490 ; (d) a ring of metal is interposed between the sleeve and the hose and becomes axially locked with the sleeve ; (e) the neck 10 of the sleeve is contracted upon a profiled part of the insert as described in Specification 540,491. Specifications 540,492, 550,891 and 553,867 also are referred to.
Patent GB-1188598-A (GB)
Title: Selector Mechanisms for Change-Speed Gears
Inventor: STOTT THOMAS CHARLES FELIX
IPC: F16H61/18
Filed: 1968-03-15
Abstract: 1,188,598. Change-speed gear. VAUXHALL MOTORS Ltd. 14 Feb., 1969 [15 March, 1968], No. 12846/68. Heading F2D. In a selective change-speed gear for a motorvehicle, a fifth (overdrive) gear pair 56 is overhung on the output shaft 34 outside the rear endwall 18 of the casing which houses the other four ratios (direct-drive and three reduced) and reverse, and its selector-fork 94 is actuated through a tubular rod 102 which slides in the end-wall and also forms support and bearing for a stationary shaft 82 on which slide two, 78, 86, of the other three selectors. The remaining selector, for the reverse idler 42, is actuated through a lever (90, Fig. 2, not shown), pivoted in the casing. Actuating projections, e.g. 100, for the 1-2 and 5 selectors 86, 94 and for reverse, in their neutral position (shown) all lie in the plane of a notch 76 in an axial tongue 72 on a slide-turn selector shaft 62, that of the 3-4 selector 78 lying in an axially-spaced notch 74 therein. Turning the selector shaft 62 causes the tongue 72 to register with a selected fork projection 100 &c., and sliding the shaft in either direction actuates the fork, the remaining forks being locked by a grooved interlock spool 104 which turns with the selector shaft 62 but is prevented from axial movement by a fixed pin (not shown) on the casing. (This interlock forms the subjectmatter of Specification 983,564). The selector shaft 62 is actuated by a ballmounted manual lever 12, having a depending forked end 64 straddling an offset pin 66 attached to the shaft 62, the ends 68 of the fork 64 being long enough to be obstructed in turning by the shaft 62 itself, so that selection is normally limited to ratios 1 to 4. Ratio 5 (overdrive) and reverse, on opposite sides of the gate, are reached by first lifting the lever 12 against its ball spring, so that its forked ends 68 clear the shaft 62 (Figs. 3 to 5, not shown).
Patent GB-1299734-A (GB)
Title: Improvements in or relating to cephalosporin compounds
Inventor: COWLEY BRIAN RICHARD
IPC: A61K31/545
Filed: 1969-03-11
Abstract: 1299734 Preparing 3-Methyl-cephalosporanic acid esters GLAXO LABORATORIES Ltd 10 March 1970 [11 March 1969] 12865/69 Heading C2A 7# -Acylamido-3-methyl-cephalosporanic acid esters are prepared by heating a 6#-acylamidopenicillanic acid 1-oxide ester in a solvent selected from ketones boiling at 75‹ to 120‹ C., esters boiling at 75‹ to 140‹ C., dioxan (the heating being for at least 2 hours at 75‹ to 110‹C. and for at least 45 minutes at higher temperatures in these solvents), and diethylene glycol dimethyl ether, in the presence of a hydrocarbyl sulphonic acid or a phosphorus acid. Suitable ketones and esters are ethyl methyl ketone, isobutyl methyl ketone, methyl n-propyl ketone, n-propyl acetate, n-butyl acetate, iso-butyl acetate, sec-butyl acetate and diethyl carbonate. Hydrocarbyl sulphonic acids may be alkyl, aryl or aralkyl sulphonic acids. Phosphorus acids may be ortho-, poly- or pyrophosphoric acids, phosphonic or phosphorus acids; the phosphonic acids may be aliphatic, araliphatic or aryl and the organic moiety may be substituted e.g. by halogen or nitro. Typical such acids are methane-, ethane-, dichloromethane-, trichloromethane-, iodomethane-, bromobenzene- and nitrobenzenephosphonic acids. The acid is preferably used in a proportion of 0À05 to 0À2 mole and not exceeding 1À0 mole per mole of the penicillin oxide. The reaction is preferably carried out under reflux using a desiccant in the reflux return tube to remove water formed during the reaction. The product is isolated by removing the solvent e.g. by evaporation, and the acid, e.g. by water-washing if the solvent is water-immiscible or else by neutralizing with e.g. CaCO 3  or MgO and filtering, optionally decolorising the charcoal and precipitating the product with water, and crystallising or purifying by chromatography. The penicillin 1-oxide ester is obtained by esterifying the 3-carboxyl group and then oxidising the 1-sulphur group with an oxidising agent in an amount such that at least 1 atom of active oxygen per atom of thiazolidine sulphur is present. Typical oxidising agents are metaperiodic acid, peracetic acid, monoperphthalic acid, m-chloroperbenzoic acid, or t-butylhypochlorite with a weak base, e.g. pyridine. The penicillin 1-oxide ester preferably has protecting groups on any radicles present which are reactive in the various processes.
Patent GB-455971-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: F21V19/00
Filed: 1935-04-30
Abstract: 455,971. Mounting electric discharge lamps in lanterns. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, and MAXTED, R., 161, Clifton Road, Rugby. April 30, 1935, No. 12886. [Class 75 (iv)] An electric discharge lamp is mounted in the focal axis of the reflector of a lantern by engaging a cylindrical part of the translucent outer jacket of the lamp 4 in an accurately made cylindrical spring clip 1 which is rigidly secured in the lantern with its centre coaxial with the focal axis of the reflector. The clip 1 is secured to a strip 2 which is secured to or formed integrally with a mounting bracket 3, and the lamp engages with a flexibly mounted lamp holder.
Patent GB-528208-A (GB)
Title: Improvements relating to packing or piston rings
IPC: F16J15/20
Filed: 1939-04-29
Abstract: 528,208. Piston and stuffing-box packing. AIRSPEED (1934), Ltd., and NEWALL, L. April 29, 1939, No. 12911. [Classes 122 (i) and 122 (v)] A packing or piston ring of indiarubber &c., is formed with annular slits or cuts, made without the removal of material.and extending to one or more of the surfaces of the ring, so as to provide sharp edges to bear against the surface to be sealed. The slits may be either perpendicular or inclined to the surface in which they are made. A ring for sealing along its inner surface may have three annular slits k, l, m, Fig. 2, the outer slits k, m being inclined in opposite directions. A ring for sealing along its outer surface may have oppositely directed pairs of parallel slits k, m, Fig. 3.
Patent GB-542980-A (GB)
Title: Improvements relating to canisters and the like
IPC: B65D3/22
Filed: 1940-08-13
Abstract: 542,980. Canisters. STEEL & CO., Ltd., J., and SMITH. T. P. Aug. 13, 1940, No. 12920. [Class 18] Canisters &c. are made by passing paper strips over a coating roller which rotates in a bath containdng melted crude oil bitumen, winding the strip on itself while the bitumen is plastic to form a tubular body formed by super posed layers of paper with an inter vening layer of solidified adhering bitumen. The strip may be wound or a mandril which may be heated and each layer may be pressed by one o: more rollers. Ends consisting of meta or of layers of paper secured togethe by bitumen may be used. A covering sheet may be used on the outside. The end of the tube may be rolled to form a bead on which the end disc rests, or the latter may have a flange held between the bead and the body. The ends may also be formed as caps which fit in or on the end of the body.
Patent GB-950107-A (GB)
Title: Continuous automatic coulometric titration system
IPC: G01N27/44
Filed: 1961-04-11
Abstract: Boranes in the atmosphere are estimated by coulometric titration (see Division G1) by generating free iodine in a potassium iodide solution buffered at pH 5,5 with a pyridine-pyridinium buffer or a potassium iodide/sodium bicarbonate solution through which gas samples are passed.
Patent GB-464007-A (GB)
Title: Discharge for grinding mills
IPC: B02C17/02
Filed: 1936-05-08
Abstract: 464,007. Ball mills. AMERICAN BALL-MILL CO. May 8, 1936, No. 13078. Convention date, Sept. 9, 1935. [Class 59] In a ball mill having a classifier provided with conduits alternately communicating with the interior of the drum and the discharge side, the separating walls between the conduits are curved to provide a substantially radial portion and a portion extending at an angle to the radius, the two portions being united with each other by a curve, and the portion extending at an angle to the radius having a grating for permitting the material to pass from one conduit into the adjacent conduit for discharge from the drum after having passed through the grating in the wall. As shown the rotatable drum 6 is provided with a discharge trunnion 8 in which is secured a trunnion liner 13 having an extension with alternate reversely directed ports 17, 19. Each port 17 is connected to a curved conduit 23 formed by curved walls 24, 25 closed by an inner and outer wall 27, 26 respectively, and the wall 24 is provided with a grating 29. End wall liners 33 on plates 31 abut the walls 27 of the conduits 23 so that the space between two conduits forms a return conduit 30 which is in communication with the interior of the mill through ports 19, 20. A space 34 between the end wall liner 33 and the cylinder liners 32 permit crushed material to enter the chambers 30 where the fines are sifted through the gratings 29 into the conduits 23 for discharge through a port 17 into trunnion 13 whilst the coarse material is raised in the chambers 30 and discharged back into the mill through ports 19, 20. The space 34 is less than the diameter of the crushing balls and the trunnion extension is provided with a flange 22 which serves as a barrier to deflect the balls. The apparatus may be used, without the extension 13, as a classifying means between two crushing chambers of a compound mill.
Patent GB-831407-A (GB)
Title: Masking of cyan images in colour photography
Filed: 1958-04-24
Abstract: 4 - Octadecylamino - 3 - aminobenzene sulphonic acid is made by treating the sodium salt of 2 - nitro - 1 - chlorobenzene - 4 - sulphonic acid with stearylamine in presence of sodium bicarbonate and reducing the product with stannous chloride.  3 - Amino - 4 - octadecylamino - benzoic acid is made analogously starting from 4-chloro-3-nitro-benzoic acid as also may be made the corresponding dodecylamino derivative.
Patent GB-1509063-A (GB)
Title: Adjustable capacitor and apparatus provided with said capacitor
IPC: H01G5/16
Filed: 1975-03-27
Abstract: 1509063 Variable capacitors L C C - C I C E COMPAGNIE EUROPEENE DE COMPOSANTS ELECTRONIQUES 27 March 1975 [29 March 1974] 13090/75 Heading H1M In a variable capacitor one electrode comprises resiliently deformable material whereby pressure transmitted from the capacitance adjusting means alters the area of a face of said electrode presented to the dielectric separating it from the other, rigid electrode. As shown in Fig. 4, rigid dielectric, e.g. ceramic, disc 2 has a metallized lower surface constituting the fixed electrode in contact with terminal plate 10 having lead 12. The deformable electrode 3 is dished presenting a convex surface to dielectric disc 2 and contacts its terminal plate 5 around its perimeter. Electrode 3 may be of conductive elastomer, i.e. loaded with conductive particles or having a conductive coating. Where the resilient material is relatively soft to minimize resistance to deformation it may be reinforced by a resilient metal or plastics member (30) embedded therein (Fig. 2, not shown). The fixed electrode may comprise tantalum wire folded in zig-zag fashion, an anodized coating forming the dielectric (Fig. 5, not shown). In the embodiment illustrated in Fig. 6, actuation of adjustment member 4 deforms tubular electrode 3 into contact with fixed electrode 1 formed by helically wound and anodized tantalum wire. In another embodiment the fixed electrode is an anodized tantalum wire lying in the bight of a narrow U-shaped member and the elongate deformable electrode is acted on by a member force-fitting within the U-shaped member (Fig. 7, not shown). The fixed electrode may be a silicon plate adhesively secured to a substrate of a micro-circuit and having a thermally grown oxide dielectric thereon (Fig. 8, not shown). Capacitors according to the invention may be very small and suitable for use in tuning the oscillator circuit of an electronic watch.
Patent GB-406250-A (GB)
Title: Improvements in and relating to speed regulating mechanism for alternating electric current machines
IPC: H02P7/26
Filed: 1932-05-06
Abstract: 406,250. Control of A.C. motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) May 6, 1932, No. 13128. Void [Abridged as open to inspection under Sect. 91 of the Acts May 7, 1932]. Drawings to Specification. [Class 38 (iii).] The Specification relates to the control of motors the rotors of which are supplied with A.C. and the fields with either A.C. or D.C. The rotor supply is controlled by grid control electron discharge devices arranged so as to connect the supply which may be either D.C. or A.C. into variable frequency A.C. Specification 386,976, [Group XXXV], is referred to.
Patent GB-984400-A (GB)
Title: Precision beam balance
IPC: G01G1/00
Filed: 1963-04-02
Abstract: 984,400. Bearings. MEPAG A.G. April 3, 1963 [Nov. 9, 1962], No. 13210/63. Heading F2A. [Also in Division G1] A precision beam balance comprises two selfadjusting bearing units 2, 3 fixed to the balance frame 1, for seating a central knife-edge 4 of the beam 5, and a pan carrier 7 with two selfadjusting bearing units 8, 9 for supporting it on an outer knife-edge 6 of the beam, the movement of the pan carrier 7 being guided by a steering lever 13 with two knife edges 14, 15 one of which engages with a self-adjusting bearing unit 10 fixed to the pan carrier, and the other of which engages with two self-adjusting bearing units 11, 12 fixed to the frame 1. Each self-adjusting bearing unit comprises two flat intermediate plates 17, lying in intersecting planes, on which the knife edge bears, each plate 17 being mounted on a corresponding flat support surface 19 with the aid of two balls 18. Weak springs (not shown) may be provided in the bearing units to bring the plates 17 and balls 18 to a rest position when the unit is not loaded. The arrangement shown constitutes a parallel linkage for guiding the movement of the pan carrier.
Patent GB-252408-A (GB)
Title: Improvements in and relating to electric control systems
IPC: B60L9/12
Filed: 1926-05-25
Abstract: 252,408. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W.). May 25, 1925, [Convention date]. Vapour and vacuum or low-pressure apparatus, arrangements of.-Smoothed unidirectional current for feeding motors is obtained from an alternating-current supply by an electron discharge tube 12, which may be a mercury vapour rectifier, fitted with four anodes and four grids subject to a variable potential device such as a manually-operated phase-shifter 42.
Patent GB-872861-A (GB)
Title: Improvements relating to the polymerisation of ethylene
IPC: C08F10/00
Filed: 1960-04-13
Abstract: Solid polyethylene is made by heating ethylene with titanium hydride and titanium tetrachloride in a weight ratio between 0,3 : 1 and 3 : 1 at a temperature of 150 DEG -250 DEG C. under an ethylene partial pressure of at least 50 p.s.i., in an inert liquid reaction medium which is a solvent for ethylene.  The term "titanium hydride" means a composition of the formula TiHx where x is greater than zero but not greater than 2.  The liquid medium may be pentane, hexane, heptane, cyclohexane, octane, benzene, xylene, or toluene.  The polyethylene is purified by boiling with an isopropanol-HCl solution.
Patent GB-132481-A (GB)
IPC: A63H5/00
Abstract: 132,481. Lumley, G. July 10, 1919. Sound-producing toys.- A blade or thin oblong piece of wood or other material B is attached by a cord C to a stick A. A musical note is produced by holding the stick and whirling the blade in the air. By attaching several blades of different sizes to the stick, a chord or combination of notes can be produced.
Patent GB-1259867-A (GB)
Title: Transistor structures for integrated circuits and method of making the same
IPC: H01L21/8222
Filed: 1969-03-13
Abstract: 1,259,867. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 13 March, 1969 [13 March, 1968], No. 13255/69. Addition to 1,041,681. Heading H1K. In a device of the type described and claimed in Specification 1,041,681 in which a transistor is provided with a sub-collector layer contacted by a high conductivity wall, the impurity concentration in at least part of the wall increases with increasing distance from the surface. This is said to reduce the effect of collector wall diffusion in unwanted locations on the collector breakdown voltage. The device is produced by diffusing arsenic into a P-type silicon substrate 10 to form subcollector region 12 and diffusing phosphorus, which is a fast diffusing impurity, round the edge of the region 12 to form a heavily doped region (14) at the site of the high conductivity wall. The surface is cleaned by etching and an N-type epitaxial layer 16 is deposited, the phosphorus partly out diffusing into the layer. Boron is diffused-in to form a P + type isolation region 28 and the phosphorus diffuses further towards the surface to form the N + type collector wall 24. A P-type base region 20 is then formed by diffusion of boron, and emitter region 22 and collector contact region 32 are formed by diffusion of phosphorus. Silicon dioxide diffusion masks and passivation layer 26 are utilized and contacts 34 to the various regions are formed by aluminium metallization. Reference has been directed by the Comptroller to Specification 1,047,388.
Patent GB-935623-A (GB)
Title: Improvements in or relating to foundry processes
Inventor: KING RICHARD HARRY BENHAM
IPC: C21C1/08
Filed: 1960-04-14
Abstract: A fluxing composition for use in foundry processes in the form of a briquette consists of powdered fluorspar and a binder, each briquette having a known content of calcium fluoride and the binder having no undersirable effect on the process.  The binder may be cement and the fluorspar : cement ratio by weight may be 80 : 20 to 90 : 10.  Tar, resin, oil or sodium silicate may also be used as binder.
Patent GB-1454584-A (GB)
Title: Sealed dry cell with silver oxide depolarizer
IPC: H01M4/06
Filed: 1974-03-26
Abstract: 1454584 Cell with silver oxide depolarizer ESB Inc 26 March 1974 [26 April 1973] 13360/ 74 Heading H1B A sealed low drain-rate cell intended for use in a watch has a divalent silver oxide (AgO) depolarizer and a metal hydroxide electrolyte of concentration 0À5 molar to 6À0 molar. The low electrolyte concentration ensures that oxygen evolved by the AgO is kept at an acceptable low level so that the cell does not burst. The metal hydroxide is selected from the following having the weight percent based on the total weight of the electrolyte : sodium hydroxide 2À0-20À0; lithium hydroxide 1À2-13À0; potassium hydroxide 3À0-25À0; rubidium hydroxide 5À0-40À0; caesium hydroxide 7À5-50À0. The preferred anode metal is zinc in gelled or semi-gelled form made by adding carboxy-methyl cellulose to screened and amalgamated zinc. Alternative anode metals are magnesium, aluminium, titanium, manganese, cadmium and indium. Fig.6 shows one embodiment comprising a gelled zinc anode 4, an electrolyte-absorbent layer 5, e.g. of matted cotton fibres, a membrane barrier 6, e.g. of Cellophane (Trade Mark), a guard ring 7 of plastics material to protect the membrane against pressure when the cap 1 is sealed to the cup 2, divalent silver oxide depolarizer 10, a zinc plated sleeve 8 and a liner 9 of zinc or polyethylene. The depolarizer 10 may comprise a mix including carbon or Teflon (Trade Mark) and may also comprise additional active material, e.g. monovalent silver oxide (Ag 2 O), MnO 2 , NiOOH, HgO, CuO or Cu 2 O. In a modification of Fig. 6 (Fig. 7, not shown) the depolarizer 10 is encased in a thin layer of silver and a thin layer of monovalent silver oxide is interposed between the silver layer and the depolarizer, the sleeve 8 and liner 9 being omitted.