baber/WOPTO huggingface dataset:
Patent GB-1145007-A (GB)
Title: A method of and apparatus for testing the electrical circuits of explosion suppression systems
IPC: G01N25/54
Filed: 1967-04-03
Abstract: 1,145,007. Testing circuits. FENWAL Inc. April 3, 1967 [April 5, 1966], No.15122/67. Heading G1U. In testing the circuit of an explosion suppression system including switches S1 S2, and suppressors XS1, XS2 of the electrically detonated type, S2 is opened and S1 closed to allow current from a source B+ to charge a capacitor C1, a limiter CL holding the current to a value below that which would detonate the suppressors; when Cl is charged S1 is opened and S2 closed to allow the capacitor to discharge through an indicator TK, the operation of which indicates that the switches are functioning correctly and that there is no fault to earth between the source B+ and the capacitor. On the depression of a test button TB, a voltage is fed over capacitor C5 and diode D7 to resistors R2 and R3 to forward bias a transistor Q1, hence switching off thyristor switch SCR2. After a short time, determined by the charging of capacitor C6 through resistor R9, the voltage across capacitor C6 equals the breakdown voltage of a Zener diode Z3, transistor Q3 becomes forward biased and C6 discharges causing the lamp Cl to flash, thus simulating the flame front of an explosion. The flash of light causes a photo-cell PC to feed a signal through an amplifier A to turn on tunnel diode TD and thence thyristor switch SCR1. The capacitor C1 then commences to charge up to a voltage equal to the difference between the supply voltage B+ and the breakdown voltage of a Zener diode Z1. During charging of C1, diode D4 is reverse biased by the potential or capacitor C3 so that transistor Q1 remains in the conducting state and thyristor SCR2 remains off. When C1 is nearly fully charged, the charging current falls below the holding current of thyristor SCR1, which therefore turns off. The capacitors C7 and C3 then discharge through resistors R2 and R3 for a short time, at the end of which transistor Q1 ceases conducting and thyristor SCR2 turns on. C1 then discharges through a resistor R7 and thyristor SCR2, the negative potential appearing at the base of transistor Q2 cutting it off, thus turning on thyristor SCR3 and so causing a lamp 2 to light, thus indicating that the circuit is functioning correctly. A further protective circuit comprising a diode D6 ensures that in the event of there being an "earth" in the suppressor "line" e.g. due to an earth fault or to the thyristor SCR2 being turned on, transistor Q3 will be cut-off and thyristor SCR2 will be maintained in its off condition, so that no current sufficient to detonate the suppressors XS1 and XS2 flows.
Patent GB-1423486-A (GB)
Title: Thermals battery
IPC: H01M6/36
Filed: 1974-04-05
Abstract: 1423486 Thermal battery YUASA BATTERY CO Ltd 5 April 1974 [14 Sept 1973] 15158/74 Heading H1B A thermal battery comprises fusible heat reservoir arranged in a stack of alternately arranged thermal cells 1 and heat-generating pellets 2 surrounded by a heat insulator 10 within a stainless steel case 11. Each cell, Fig. 2, not shown, comprises an anode layer and a cathode layer separated by a solid electrolyte layer which becomes molten when heat is applied thereto by the pellets 2. The pellets 2 are connected by a strip 6 of similar material which is ignited by a squib 7 having ignition terminals 14. To improve the discharge performance of the battery the fusible heat reservoir 4 is provided at the centre of the stack, the melting point of the reservoir, preferably 500- 600‹C, being higher than that of the cell electrolyte. Preferably, the pellets 2 adjacent the reservoir 4 have a higher calorific value than the other pellets. The discharge capacity of the cells 1 is improved by incorporating barium nitrate or lithium chromate in the electrolyte, the preferred electrolyte being a eutectic mixture of potassium chloride and lithium chloride. Heat reservoir plates 5, e.g. if steel, are provided at the stack ends. The insulator 10 may be of glass or asbestos. The cathode material of the cells may be lead chromate or calcium chromate and the anode material may be magnesium or calcium. The pellets 2 may comprise a mixture of zirconium and barium chromate.
Patent GB-180901-A (GB)
Title: Improvements in or relating to electrical ignition systems
IPC: F02P1/00
Filed: 1921-06-01
Abstract: 180,901. Curzons, H. L. June 1, 1921. Transformers.-The four ignition induction coils arranged in a sheet metal box a secured to the dashboard c of a Ford car are held, so as to ensure contact with the box terminals and so prevent rattling, by means of a bar d, which is secured to the dashboard by rods h and is provided with screws f with lock-nuts g, which force the wall of the box a inwards against the coils.
Patent GB-1267662-A (GB)
Title: Fluid pressure retaining seals for high temperature joints
Inventor: BOTTOMS HARRY SIMISTER
IPC: F16J15/08
Filed: 1968-03-29
Abstract: 1,267,662. Joint-making packing. JOSEPH LUCAS (INDUSTRIES) Ltd. 12 June, 1969 [29 March, 1968], No. 15170/68. Heading F2B. Joint packing for use between two parts 14, 15 comprises a thin resilient metal E-ring 10 of channel-shaped cross-section, the web of the channel having an indentation 11 and the sides of the channel having outwardly directed sealing lips 12, and a metal wire ring 13 located in the indentation and having a cross-sectional diameter greater than the depth of the indentation. The ring 13 bears against the base of a groove formed between the parts 14, 15 and, in use, the lips 12 are urged into contact with the respective parts by the sealed fluid pressure.
Patent GB-964649-A (GB)
Title: Improvements in and relating to the purification of fatty alcohols
IPC: C07C29/78
Filed: 1963-04-17
Abstract: Alcohols containing at least eight carbon atoms that have been obtained by, first, reacting olefines to form alkyl aluminium, e.g. by the Ziegler process, then oxidising to aluminium alcoholates and finally hydrolysing, are purified by dissolving in a mixture containing at least one paraffin hydrocarbon having 4 to 10 carbon atoms, and at least one compound selected from aromatic hydrocarbons and aliphatic ethers, cooling the solution to effect alcohol crystallisation and collecting the crystals. The alcohol is preferably dissolved in the mixture at the boiling point of the mixture. The preferred precipitant hydrocarbons are n-pentane, n-hexane, n-heptane, and iso-octane, and the preferred solvents are benzene, toluene, xylene, n-propyl ethers, and iso-propyl ethers. The ratio of paraffin to aromatic hydrocarbon and/or aliphatic ether is preferably from 10:1 to 1:10 by weight. Crystallisation is preferably carried out at from 20-40 DEG C. and the crystals may be washed with a further quantity of the mixture and then dried.
Patent GB-569788-A (GB)
Title: Improvements in foundation garments
IPC: A41C1/06
Filed: 1943-09-16
Abstract: 569,788. Undergarments. RESISTA CORSET CO. Sept. 16, 1943, No. 15229. Convention date, Feb. 5. [Class 141] A foundation garment is provided between a non- elastic back panel 26 below the waistline and an upper part 21 above the waistline with a transverselv disposed elastic insert member 23 having greater vertical elasticity at its end portions than at the middle, which end portions of the elastic insert are substantially in the line of the vertical marginal edge portions of the back panel member and of the rear garters 29, thus enabling the back panel to conform to the altered contours consequent on body movements. The garment may also include horizontally elastic inserts 18 in the side sections.
Patent GB-569984-A (GB)
Title: Method for treating aluminum or aluminum alloy scrap
IPC: C22B21/00
Filed: 1943-09-17
Abstract: 569,984. Working aluminium scrap. STERN, M. Sept. 17, 1943, No. 15315. Drawings to Specification. [Class 83 (iv)] Tubes, rods, profile bars and other articles are produced directly from aluminium and aluminium alloy scrap such as turnings, chippings, grindings, &c. by mechanically pretreating at a temperature of from 250 to 300‹ C. and pressure of from 3 to 8 tons per square inch to loosen and disrupt the oxide layers, and then raising the temperature and converting directly into the articles by pressure as in extrusion. The extrusion temperature is 300 to 450‹ C. and the pressure 18 to 40 tons per square inch. The formation into articles may be effected by compressing the scrap in a forging-die.
Patent GB-887650-A (GB)
Title: Improvements relating to fuel elements for nuclear reactors
Inventor: WISE ALAN FREDERICK EDWARD
IPC: G21C3/08
Filed: 1958-05-13
Abstract: 887,650. Fuel elements. A.E.I. -J. THOMPSON NUCLEAR ENERGY CO. Ltd. July 24, 1959 [May 13, 1958], No. 15333/58. Class (39(4) In a nuclear reactor fuel element, the cylindrical rod 1 of fissile material is encased in a can, 2 having a network of intersecting fins, 5, 6 on its outer surface forming a honeycomb structure. The coolant flow over the mouths of pockets 7 introduces turbulence within the pockets. In further embodiments, not shown, the longitudinal fins are integral with the can and the transverse fins are made separately and fitted into slots in the longitudinal fins. Alternatively, the fins may be helical relative to the element control axis and may be extended radially to support the element.
Patent GB-828368-A (GB)
Title: Apparatus
IPC: B01L3/00
Filed: 1957-05-14
Abstract: A laboratory apparatus comprises a column constructed from at least one tube wherein said tube is provided at both ends with screw thread unions made from a synthetic plastic material.  The tube may be made of the same said plastic material or may be made of other materials such as glass or silica while the preferred thread materials are polymethylmethacrylate, nylon and polyethylene.
Patent GB-762180-A (GB)
Title: Improvements in or relating to manufacture of silicone rubber
Filed: 1953-06-04
Abstract: In making silicone rubber, particularly dimethyl silicone rubber, an organopolysiloxane convertible by heat to the solid elastic state is compounded with an organophilic solid in a supercolloidal state of subdivision, having an internal structure of silica with a specific surface area of at least 1 M2/g, and having chemically bound to the internal structure -OR groups, where R is a hydrocarbon radical having 18 or less carbon atoms (preferably n-butyl), wherein the carbon attached to oxygen is also attached to at least one hydrogen atom (see Group III), and the resulting composition is cured by heating, e.g. to 230 DEG  F. or higher.  Conventional fillers, e.g. diatomaceous earth, alumina, carbon black, titania, zinc oxide, calcium carbonate and silica aerogel, and curing agents, e.g. benzoyl peroxide, diacetyl peroxide and t.-butyl perbenzoate, may be added. Examples are given.ALSO:An estersil, which is an organophilic solid in a supercollodial state of subdivision, having an internal structure of silica with a specific surface area of at least 1M2/g, and having chemically bound to the internal structure -OR groups where R is a hydrocarbon radical having 18 carbon atoms or less (preferably n - butyl), wherein the carbon attached to oxygen is also attached to at least one hydrogen atom, may be made according to the examples (1) by adding sulphuric acid to aqueous sodium silicate, mixing being effected by agitation and the temperature being maintained below 40 DEG C.; the resulting clear sol is heated to 95 DEG C. and further solutions of sodium silicate and sulphuric acid are simultaneously added thereto until one part of SiO2 has been added per part of SiO2 in the sol, and the silica is precipitated; a mixture of cetyl alcohol and lauryltrimethyl-ammonium bromide is then added and the resulting slurry is filtered, the wet filler cake being purified by re-slurrying, acidifying, filtering and washing with water, t-butyl alcohol and finally with n-butyl alcohol; the cake is then re-slurryed in n-butyl alcohol and the slurry refluxed for 48 hours, the alcohol distilled off being replaced by further butyl alcohol; and (2) by adding an ether solution of silicon tetrachloride to a cooled (-5 DEG C.) mixture of water and ether, adding n-butyl alcohol thereto and heating the resulting mixture.
Patent GB-1470687-A (GB)
Title: Manufacturing superconductors
IPC: H01L39/24
Filed: 1974-04-08
Abstract: 1470687 Superconductors REACTOR CENTRUM NEDERLAND (STICHTING) 8 April 1974 [9 April 1973] 15442/74 Heading H1A [Also in Division C7] A superconductor is produced by inserting into a hole in a bar of conductive metal (e.g. Cu, Al, Ag or alloy thereof) a first component comprising an element in chemically uncombined form of Group VB of the Periodic Table (e.g. V, Nb, Ta) and introducing into the first component a second component comprising at least one alloy or compound of said element of Group VB with an element of Groups IIIA or IVA and thermally treating the assembly to produce a superconductor having a superconductive boundary layer (e.g. V 3 Ga, Nb 3 Sn, Nb 3 Al, Nb 3 Ga, Nb 3À67 Al 0À73 Ge 0À27 , V 3 Si). The composite may be worked to wire form prior to treating for 50 to 150 hours at 550 to 900 C. The second component may be in the form of a compound containing 22À6% V and 77À4% Ga which is heated in vacuo to 700 C., pulverized, admixed with 0À1 to 10% copper powder and incorporated in vanadium contained in a copper bar. The superconductor may be produced in a multi-filamentary form.
Patent GB-143416-A (GB)
Title: Improvements in and relating to automatic sprinklers
IPC: A62C35/60
Filed: 1919-06-20
Abstract: 143,416. Horton, S. June 20, 1919. Sprinklers, automatic. - Relates to control valve apparatus, more particularly for alternate wet and dry pipe installations, of the type in which the control valve is normally held closed by the pressure in the sprinkler pipes, but is adapted to open on escape of pressure due to the operation of a sprinkler head, thus relieving pressure on one side of a main equilibrium valve, which then opens to admit the water supply to the system. The control valve p is normally held on its seat by the engagement of its stem h with an adjustable screw s on a lever g<1>, which engages a notch t in a lever g, the lower mushroom-shaped end w of which is held by a stem or bolt d on a disk c acted upon by a diaphragm a subjected to the pressure in the sprinkler pipes. When the pressure on the diaphragm a is removed, the bolt d descends under the action of a spring l, thus releasing the levers g, g<1> and allowing the control valve p to open under the action of gravity or a spring. In setting the control valve and levers before pressure is applied to the diaphragm a, the mushroom-shaped head w is engaged by a manually-operated sliding member x. When pressure is applied to the diaphragm a, the bolt d engages the lower forked end of the setting-member x, which is thus forced up out of engagement with the head w; a spring z retains it in the inoperative position when the bolt d releases the lever g. A glass door in the casing facilitates inspection of the apparatus.
Patent GB-162950-A (GB)
Title: Improvements in or relating to building blocks or slabs
IPC: E04C2/38
Filed: 1920-06-09
Abstract: 162,950. Ryan, J. June 9, 1920. Slabs of the kind formed with integral battens in distance pieces are formed as shown; the slab 1 is provided with integral battens 2, is cored out as at 3 in the usual manner, and is provided with tongue and groove 4, 5.
Patent GB-600032-A (GB)
Title: Machine for cutting gears, splines and serrations
IPC: B23F23/00
Filed: 1945-06-19
Abstract: 600,032. Gear-cutting. JOHNSON, R. L. June 19, 1945, No. 15591. [Class 83 (iii)] Gear teeth or splines in a blank are cut by a reciprocating tool holder in which cutting-tools are mounted in ring formation round the periphery of the blank and fed radially step-by-step between cutting-strokes by an axially adjustable tapered sleeve. The blank 30 is secured on a shaft 35 held in a pedestal 33 attached to a table 38 above which the reciprocating cutting mechanism is mounted in a cylinder 34 carried in a column 44 ; an alignment ring 24 ensures alignment of the pedestal 33 and cylinder 34. Inside the cylinder a piston 4 is joined to a connecting- rod 22 by a gudgeon pin 7 and is interconnected with a tapered sleeve 6 by a coupling-ring 5 having screw-threads of opposite hand and a toothed flange engaging a gear 14 on a splined shaft 16 driven by the main driving means. Another sleeve 3 is slidable within the piston, coupling ring and tapered sleeve and carries a detachable tool holder 2 with cutting- tools 1. The sleeve is connected by studs 31 to a yoke 11 bearing on a cam 10 rotated by gearing 12, 13 from a splined shaft 40 also driven from the main driving means. In operation, during a cutting-stroke, the sleeve 3 bears - against the underside of the piston 4 and the tools 1 are held against the tapered sleeve by springs 27. On the return stroke, the cam 10 has been rotated so as to allow the sleeve 3 to descend relatively to the piston, allowing the tools to retract to relieve them from unnecessary wear, and before the next cutting-stroke the sleeve 6 is advanced by the rotation of the ring 5 by the shaft 16 to apply cut. When the desired depth of cut has been made, a key 46 on the sleeve 6 strikes a bellcrank lever 51 on a cut-out device adjustably mounted on the cylinder 34 and may operate a reversing switch. The cylinder 34, which may be counter-balanced, is then lifted by means of the rack 42 and pinion 43 so that a fresh work-piece can be loaded. A wedge 45 is provided for adjusting the working clearance of tenons on the cylinders within slots on the column 44. Cutting oil may be contained in the base and pumped through the pedestal to the work. The Provisional Specification describes a tool-holding sleeve having a flange loosely engaging an annular recess in the lower end of the piston to allow self-adjustment with respect to the work-piece and tapered sleeve.
Patent GB-496736-A (GB)
Title: Improvements in or relating to buffing or scouring rolls
IPC: B24D9/04
Filed: 1937-06-05
Abstract: 496,736. Buffing and scouring rolls. BRITISH UNITED SHOE MACHINERY CO., Ltd., GORBOLD, R., and O'KEY, A. R. June 5, 1937, No. 15612. [Class 60] A buffing or scouring roll for treating shoe soles comprises a metal tube 10 adapted to fit a driving shaft and having screwed on its ends metal flanges 12 carrying covers 14 slotted to hold fingers 16, which secure the edges of a diamond shaped sheet 18 of abrasive material wrapped around the roll, by bedding into a disc 20 of rubber and a disc 22 of felt at each end of the roll. The tube 10 carries a packing 26 of wood or fibre board, and secured to the packing by means of an adhesive is a layer of sponge rubber 24 formed in one piece or wrapped round and finished with a scarfed spiral joint ; a layer 38 of textile material may be placed between the packing and the layer 24. Over the sponge rubber and the discs 20, 22 is a covering 30 of substantially non-porous material adhesively secured to the rubber and to the discs 20 ; the covering may be of leather or rubber, and by varying the thickness of the covering the resilience of the roll may be varied. British Specifications 18523/92, 22001/95, 287,682, [all in Class 60]; 332,525, and 332,526, [both in Class 70], and U.S.A. Specification 1,886,733 are referred to.
Patent GB-1035683-A (GB)
Title: New estrane derivatives, compositions incorporating them and processes for their preparation
IPC: C07J1/00
Filed: 1963-04-19
Abstract: The invention comprises 3-keto-17b -OR-estra-4,9,11-trienes wherein R is a hydrogen atom or an acyl group, and their preparation by cyclization of a 17b -acyloxy-4,5-seco-estra-9,11-diene-3,5-dione, followed if desired by 17-hydrolysis or re-esterification.  The compounds of the invention have androgenic and anabolic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral, parenteral or rectal administration.
Patent GB-291961-A (GB)
Title: Improvements relating to baths for galvanising
IPC: C23C2/06
Filed: 1927-06-14
Abstract: 291,961. Turnbull, N. K. June 14, 1927. Galvanizing.-In a galvanizing bath of the type in which the bath is heated internally, such as is described in Specification 220,398, thermal conductors connecting the layer of lead 4 and the layer of zinc 5 and passing through the interposed layer of dross 6 are provided, said conductors comprising metallic bars 7 held together by frame 8 provided with hooks 9 by which the frame &c. mav be removed from the bath. The frame 8 of iron is so weighted that the bars 7 rest on the bottom of the bath. The bars 7 and the frame 8 may be composed wholly of iron; the portions of the bars 7 which are immersed in the lead may be composed of aluminium suitably secured to the iron.
Patent GB-765973-A (GB)
Title: Improvements in or relating to condensers
IPC: H01G2/24
Filed: 1954-05-28
Abstract: 765,973. Capacitors. SIEMENS & HALSKE AKT.-GES. May 28, 1954 [May 28, 1953], No. 15873/54. Class 37. A capacitor in which a certain characteristic . is designated by the application of colour, is constructed by winding up the electrodes with interleaved dielectric strips, e.g. of polystyrene, part at least of one of which is coloured so that when wound up the coloured part forms the outer covering of the capacitor. The capacitor is then heated so that the outer turns and the edges of the dielectric fuse together, thus providing a sealed casing for the capacitor. By the use of appropriate colours a characteristic such as working voltage, may be designated. A further feature, i.e. the end from which the lead connected to the outer electrode projects, may be indicated by making the appropriate lead of milled or corrugated form or of rectangular section.
Patent GB-1347205-A (GB)
Title: Method and apparatus for testing objects such as gear wheels
IPC: G01B7/28
Filed: 1972-04-06
Abstract: 1347205 Gear tester ERNST LEITZ GmbH 6 April 1972 [21 April 1971] 15923/72 Heading G1M The pitch, or circular pitch angle, of a gear rack or gear wheel for example is determined by sliding a motor driven carriage 12, Fig.4a until a probe 11 thereon touches a tooth tip. When this contact occurs the movement of 12 is stopped but the gear (wheel) continues to rotate at a fast speed. As soon as a gap between the teeth arrives opposite the probe 11 the carriage 12 is started again until the stop 18 prevents further movement. In this position, Fig.4b, a feeler 9 is situated on the pitch circle, the carrier is switched off and the gear continues to rotate at the fast speed until the probe 11 which is in front of a probe 9 impinges on a tooth flank, Fig.4c, and switches the gear wheel rotation to slow drive. After a period of slow rotation the probe 9 is first pressed against a tooth flank and then moved to a null position and causes a signal generator to trigger an electric pulse which feeds through circuitry 5 into a plotter 6, Fig.1, a signal corresponding to the angular position of the gear wheel. As soon as this pulse has occurred the carrier 12 is retracted to a position where the whole sequence may be repeated to give further pulses until the apparatus switches itself off after a complete 360 degree rotation.