baber/WOPTO huggingface dataset:
Patent GB-840389-A (GB)
Title: Improvements relating to means for making joints between pipes of thermoplastic material
Inventor: RATTLIDGE FRANK EDWIN
IPC: B29C65/82
Filed: 1957-03-22
Abstract: 840,389. Pipe joints. EVERED & CO. Ltd. March 24, 1958 [March 22, 1957], No. 9382/57. Addition to 839,743. Class 99(1). In joint forming means for thermoplastic pipes 15, 16, e.g. of polyethylene or polyvinyl chloride, and of the kind comprising inner and outer sleeves 10, 11, the sleeve 10 being a tight fit in the pipes and forming with the sleeve 11 an annular passageway for reception of the pipes as a tight sliding fit therein, barrier rings 20 are provided in that part of the passageway or fusion zone 22, wherein fusion union between the pipes takes place, the inner boundaries of the rings being spaced radially from the outer face of the sleeve 10 so as to provide a passage for an inner layer 34 of pipe material into the zone 22, and the rings each affording ways situated radially outwardly of their inner boundaries for the passage of an outer layer 35 of pipe material into the zone 22. The rings 20 are in heat-receiving communication with the sleeve 11 so that when the latter is heated the end portions of the pipes are rendered fluent and readily divisible by the rings when the pipes are pushed axially into contact therewith. As shown, the sleeve 11, of brass or copper, comprises an outer tube 12 and a close-fitting, structurally separate, inner assembly including a centrally disposed inner ring 13 separated from inner tube elements 14 by annular recesses 25 for engagement by radially projecting lugs on the rings 20, the ring 13 and the elements 14 being retained against axial displacement relatively to the tube 12 by deformed end portions 31 of the tube which are pressed axially against the knurled or serrated end faces of the tube 14 thereby also preventing rotation of the latter. Openings 26 are formed in the tube elements 14 which become filled with pipe material rendered fluent. The sleeve 11 may be formed with indicator holes extending through the wall of the tube 12 and communicating with the recesses 25 or the openings 26. A temperature-indicating material may be provided on the tube 12. The sleeve 16, of brass or copper, is formed with a central, radially outwardly, projecting rib 33. In a modification, not shown, inner tubes are provided which are capable of being displaced in an axial direction within the tube 12 by end caps screw-threadedly mounted thereon. Specifications 839,744 and 839,745 are referred to.
Patent GB-1306832-A (GB)
Title: Heat insulated pipes
IPC: F16L59/16
Filed: 1970-04-03
Abstract: 1306832 Pipes INDUSTRIELE ONDERNEMING WAVIN NV 3 April 1970 [5 April 1969 12 Feb 1970] 9391/71 Divided out of 1306831 Heading F2P  The subject matter is similar to that described in Specification 1,306,831 and shown in Fig. 3 and 2 thereof and the claims are directed to an insulated pipe and its method of manufacture, in which a pipe 1 has a plastics foam layer 3 and fluid tight covering layer(s) 10, 16.
Patent GB-330989-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C19/08
Filed: 1929-03-23
Abstract: 330,989. Drysdale, H. March 23, 1929. Disc and like mills.-In a mill for grinding coal &c. and having concave and convex grinding elements mounted to rotate about axes inclined to one another, one of the elements 10, Fig. 1, is mounted to rotate about a horizontal axis and the other, 11, has its axis inclined so that the periphery of one disc coincides with or approaches the periphery of the other disc. The disc 10 is mounted in a casing 12 in which is mounted the gearing for driving the disc. An annular ring 14, provided with a lining 19 is hinged to the casing 12 and a cover 16 in which is mounted the disc 11, is hinged to the ring 14. A fan 18 is carried by the disc 10 and discharges the ground material, e.g. coal through an outlet 33. The disc 11 is driven frictionally from the disc 10 and is provided with a hollow spindle through which the material is fed to the discs by a shoot 21. The spindle of the disc 11 is engaged by pins 25 on lever arms 22 under the control of a spring 32 by which the pressure between the discs is adjusted. In Fig. 3 two convex discs 10 are mounted on a common spindle 34 driven by gear wheels 35, 36. The casing 12 is provided with hinged covers 38, 39 and a central cover 40 may be hinged to these covers. A carrier 43, in which the spindle of the disc 11 is mounted, may slide on guideways along which it is moved by a pinion 46 and rack 47 to adjust the relative position of the stone 10, 11 for coarse grinding. The material to be ground is fed through the hollow spindles of the stones and the discharge is through ducts 33. These ducts may discharge into a common shoot or to separate discharge devices. Specifications 3718/82 and 16511/15 are referred to.
Patent GB-919258-A (GB)
Title: Improvements in and relating to multiple contact electrical connectors
IPC: H01R13/703
Filed: 1961-03-15
Abstract: 919,258. Plugs and Jacks. KRONE G.m.b.H. March 15, 1961 [March 17, 1960], No. 9434/61. Class 40 (4). [Also in Group XXXVI] A socket connector for a telecommunication system comprises a plurality of insulating plates such as 1, la arranged side by side and each carrying a. plurality of contacts 3 ... 3c each having four contact springs 5 which bear on a spring-loaded cylindrical intermediate piece 6 of conducting or insulating material which is displaced downwards when a single or multiple pin plate type plug (not shown) is brought into co-operation with the connector. Thus if incoming and outgoing signal circuits are connected to the various contact springs it is possible to modify the connections between the circuits by inserting, removing or exchanging various plugs.
Patent GB-347420-A (GB)
Title: Improvements in floats for fishing nets
IPC: A01K75/04
Filed: 1930-12-10
Abstract: 347,420. Fishing-net floats. WEBSTER, W. H., 30, Devonshire Avenue, Grimsby. Dec. 10, 1930, No. 9449. [Class 48.] A fishing-net float comprising a spherical metal shell filled with compressed gas has an internal tube b which is sealed at both ends with soft solder to allow escape of the gas in the event of the float being subjected to excessive heat. For filling the float, the tube b has an aperture e covered by a rubber sleeve d.
Patent GB-211741-A (GB)
Title: Improvements in devices for controlling variable-speed gearing
IPC: F16H63/30
Filed: 1923-04-06
Abstract: 211,741. Downs, N. T., and Dyke, C. H. April 6, 1923. Controlling variable-speed gearing.-The striking means b for actuating the clutches of a variable-speed gear slides on a fixed guide bar a, is operated by a hand-operated shaft c, and is locked in gear positions by a spring bolt d in the gear casing as shown.
Patent GB-803186-A (GB)
Title: Negative-impedance transistor oscillator
IPC: H03L5/00
Filed: 1957-03-22
Abstract: 803,186. Transistor oscillator circuits. STANDARD TELEPHONES & CABLES, Ltd. March 22, 1957 [March 28, 1956], No. 9514/57. Class 40 (6). A transistor oscillator circuit comprises a negative impedance converter having one pair of open-circuit stable terminals and one pair of closed-circuit stable terminals with a seriestuned circuit connected between the opencircuit-stable terminals and a suitable matching impedance connected between the other pair of terminals. The negative impedance converter comprises two junction transistors of opposite conductivity types which are reciprocally coupled between their collector and base eleetrodes. The series-tuned circuit comprising inductor 32 and capacitor 34 is connected in series with a load resistor 36 across the opencircuit-stable terminals YY. Fig. 1 shows a resistor 44 and blocking capacitor 42 connected across the closed-circuit-stable terminals XX. Figs. 2, 3 and 4 show how the circuit connected between terminals XX may be modified; in Fig. 2 limiting is achieved by the use of two oppositely-poled silicon junction diodes 46, in Fig. 3 a similar effect is achieved by the use of Zener diodes 48 and in Fig. 4 the circuit of Fig. 1 is replaced by a parallel resonant circuit tuned to the resonant frequency of the series circuit 32, 34.
Patent GB-850873-A (GB)
Title: Purification of monosodium novobiocin
IPC: C07H17/075
Filed: 1958-03-25
Abstract: Crystalline monosodium novobiocin of enhanced purity is produced by dissolving novobiocin acid in an organic solvent mixture containing 2 to 4 parts by volume of a 1 to 4 carbon alcohol and approximately 1 part by volume of an aromatic solvent such as benzene, toluene or xylene and treating the solution with a sodium alkoxide such as methoxide to a pH of 7,0 to 7,5. The preferred solvent is 2:1 methanol-benzene which produces a product of good colour with the minimum of solvent.  According to one example, novobiocin of about 88% purity is dissolved in 2:1 methanolbenzene the solution filtered and a filtered methanol solution of sodium methoxide slowly added with agitation to pH 7,1, further additions are made to pH 7,2-7,3 when monosodium novobiocin precipitates and is agitated at 25 DEG -30 DEG  C. for 1 hour.  Approximately 8 volumes of benzene (based on original quantity of benzene in the solvent) is then added, the mixture agitated 1 hour at 25 DEG  to 30 DEG  C. and filtered.  After washing with benzene, the bulk of the benzene is removed without exposing the crystals to atmospheric moisture and the crystals are dried under vacuum at 50 DEG  C.  A substantially saturated solution of novobiocin in the organic solvent mixture is used and after the initial crystallisation step, supplemental aromatic solvent is added in amounts of 5 to 8 times the volume thereof present in the mixed organic solvent.  Monosodium novobiocin is used medicinally and in the treatment of plants (see Group VI).  Specification 821,819 is referred to.ALSO:Monosodium novobiocin (Group IV(b)) is administered orally in tablet or capsule form.  Tablets are prepared by mixing the p  powdered monosodium novobiocin with 5% solution of cellulose acetate hydrogen phthalate in methanol acetone, granulating and compressing the granules with a small amount of magnesium stearate. For the treatment of plant diseases, aqueous solutions of the salt containing various wetting or spreading agents and/or other active agents may be employed.  Specification 821,819 is referred to.
Patent GB-1495894-A (GB)
Title: Aqueous suspension containing an organic peroxide
IPC: C07C409/32
Filed: 1976-03-10
Abstract: 1495894 Aqueous suspensions of peroxy compounds AKZO NV 10 March 1976 [14 March 1975 2 July 1975] 09595/76 Heading C3P An aqueous suspension having a viscosity of no more than 500 poise for use in the (co-) polymerization of ethylenically unsaturated monomers comprises at least 20% by weight of an organic peroxy compound which is solid at about 20 C., at least 0,2% by weight of a nonionic emulsifier having a HLB value below 12À5 in combination with either (a) at least 0À2% by weight of a nonionic emulsifier having a HLB value of above 12À5 or (b) at least 0À01% by weight of an anionic surfactant. The suspensions exemplified contain one or more of dibenzoyl, dicumyl, dilauroyl peroxide, bis- (2,4-dichlorobenzoyl or 0-methylbenzoyl or 1- hydroperoxycyclohexyl or 1-hydroxyheptyl) peroxide, 1 - hydroxy - 1<SP>1</SP> - hydroperoxydicyclohexylperoxide and dicetylstearyl-4-tertbutylcyclohexyl- or cyclohexylperoxydicarbonate, one of methyl, hydroxyethyl or hydroxypropyl cellulose or polyvinylalcohol and an ether of polyethylene oxide having a HLB value below 12À5 in combination with sodium lauryl sulphate or sodium dodecylbenzene sulphonate or a lauryl, nonylphenyl or sorbitan monoleate ether of polyethylene oxide having a HLB value above 12À5. The polymerization of vinyl chloride using such a suspension containing dicetyl peroxydicarbonate is exemplified.
Patent GB-628194-A (GB)
Title: Improvements in or relating to agricultural trailers
IPC: B62D63/06
Filed: 1947-04-11
Abstract: 628,194. Road vehicles. BUTCHER, R. S. April 11, 1947, No. 9685. [Class 108 (i)] An agricultural vehicle comprises a central tubular longitudinal member 1 with welded-on transverse members 2, of vertically-disposed sheet-metal, carrying wooden beams 8 along the top horizontal edges forming joists for the wooden floor of the vehicle. A pair of fixed near wheels is carried by the horizontal tube 10 centrally attached to the main tube 1 via the vertical tube 11, and the front wheels 21 carried by the horizontal tube 14 are universally jointed by the pivot 15 and turntable 16 to the vertical tube 17 attached to the main member 1. Vertical displacement of the front wheels is opposed by the springs 18. The lugs 22 are attached to a draw-bar or alternatively to shafts for horses. Head, tail and side boards may be fitted and provision is made for securing harvest ladders 23 to the vehicle.
Patent GB-440399-A (GB)
Title: Improvements in and relating to electric rectifiers
IPC: H02M1/04
Filed: 1934-03-28
Abstract: 440,399. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. March 28, 1934, No. 9708. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 1, 1934]. [Class 38 (ii)] Relates to an arc rectifier arrangement in which ignition is effected by a high voltage periodically applied to the anodes and consists in inserting the ignition switches in the leads adjacent to the anodes. In the form shown a condenser 3, charged from an A.C. circuit through an auxiliary rectifying device 2, is periodically connected across the discharge gaps 8 by means of switches 5 which may be controlled auxiliary discharge devices or in the form of a rotary distributer. The moment of ignition can be controlled by altering the moment of ignition of the auxiliary discharge devices or by shifting the stator of the distributer. In a modification the condenser is connected through a step-up transformer. In this form in addition to the switch 5 in the secondary circuit of the transformer a further switch is arranged in the primary circuit, this switch being closed each time a secondary circuit is completed.
Patent GB-947327-A (GB)
Title: Finned tubes
Inventor: CARTER ALAN
IPC: F28F1/12
Filed: 1961-03-16
Abstract: 947,327. Making finned tubes. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 14, 1962 [March 16, 1961], No. 9728/61. Heading B3A. [Also in Divisions F4 and G6] A tube, e.g. of magnesium alloy, has a plurality of fins which extend along the tube in substantially continuous helical paths, the hand of the helical paths changing at least once. The tube may have one or more longitudinal secondary fins acting as splitters which may themselves follow helical paths. The helices may be formed on the finned tube immediately after its extrusion whilst the material is still relatively plastic, by gripping it at a number of points P 1 , P 2  along its length and twisting the tube relative to the said points through varying angles and in different directions. The tubes may be used as nuclear fuel cans, and may be manufactured with internal fins.
Patent GB-124338-A (GB)
Title: Improvements in and relating to Electric Switches.
IPC: H01H50/64
Filed: 1918-06-13
Abstract: 124,338. British Thomson - Houston Co., (General Electric Co.). June 13, 1918. Electro - magnetic switches; switckboards. -Relates to the construction of electromagnetic switches, designed for operation with other switches, whereby they may be easily assembled side by side in a bank. According to the invention, the switching- mechanism comprises a supporting - frame 7, Fig. 3, having parallel longitudinal rails 5, 6, the rail 6 carrying the electro-magnets 10 for each switch, and the fixed and movable contacts 20, 15 being carried by vertical bars 21 secured between the rails 5, 6. The shaped fixed contact 20 is connected to the terminal block 26 through a coiled conductor 32 which energizes a blow-out electro-magnet. The movable contact member 15 is pivoted to a link which is pivoted to the other terminal block 27,. and the contact is pressed away from the link by a spring 19 to give a rolling engagement with the fixed contact. An arc chute consisting of two similar slabs 33 of refractive material secured to brackets carried by the terminal blocks surrounds the contacts. Each vertical bar 21, carrying the contacts, blow-out device, and the operating-link 17, is secured to the rails 5, 6 by angle-iron brackets 22 and bolts. The operating electro-magnets 10 are secured to the lower horizontal rail 6, and the armatures 11 are pivoted to an extension of the rail, so that the lower rail serves as part of the magnetic circuit of the electro-magnets. To complete the assemblage, each link 17 is connected to its armature by a pin. The bus-bars are connected to the terminal blocks 26, 27 and may be secured thereto before the blocks are clamped to the vertical bars. Insulating distancepieces 30 may be threaded on the bars.
Patent GB-139063-A (GB)
Title: Improvements in or relating to lathe slides
IPC: B23Q5/22
Filed: 1919-04-16
Abstract: 139,063. Drummond, A. April 16, 1919. Turning. - Swivel top slides B are located by disks C ribbed to fit a T- slot. The disks are thinner than the depth of the recesses in the slide, so that clamping by a central bolt D takes place solidly at b<2>, b<3>. An aperture b<4> exposes graduations on the disk for setting.
Patent GB-741243-A (GB)
Title: Improvements in or relating to the smelting of materials containing lead and zine
Inventor: MORGAN STEPHEN WILLIAM KENNETH
IPC: C22B19/36
Filed: 1953-04-10
Abstract: In a process of smelting ores containing lead and zinc in a blast furnace the air blast and at least part of the charge are preheated to maintain the temperature at the top of the furnace at a high level, say 700-900 DEG  C., the charge composition is controlled to give a reducing atmosphere in the offtake vapours which contain the zinc, and the metals therein are condensed in metallic form.  To ensure a reducing atmosphere the proportion of coke used is increased above the normal.  To ensure elimination of zinc from the ore air is fed into the furnace at intermediate levels as well as the bottom of the furnace.  In treatment of sulphide ores these are roasted by a sintering process, mixed with fluxes such as lime and silica, and preheated to 500-750 DEG  C.  The coke may be separately preheated to 800-1000 DEG  C. and the air blast to 550-800 DEG  C.  The lead recovered at the bottom of the furnace will contain nearly all the silver and gold, and some of the tin, antimony and bismuth contained in the ore.  Copper will also be collected with the lead in metallic form or, in the presence of sufficient sulphur, as a matte.
Patent GB-1246258-A (GB)
Title: Circuit breaker
IPC: H02B13/02
Filed: 1970-03-02
Abstract: 1,246,258. High voltage switches. BROWN, BOVERI & CO. Ltd. 2 March, 1970 [4 March, 1969], No. 9867/70. Heading H1N. A high voltage, heavy current circuit breaker 1 having terminals 3, 4 at opposite ends is mounted in a polygonal cage consisting of collars 5, 6 supported by the terminals and joined by a plurality of bars 7. As shown there are four bars 7 and the space between is sufficient to allow the breaker to be demounted. The enclosure is completed by insulating plates 11 inserted in slots 10 formed in the bars 7 and provided with sealing strips (12) (Fig. 4, not shown). The breaker 1 is provided with a vent 18 for ionized gases and a series isolating switch 2 the whole assembly being supported by insulators 8 from the bars 7. The shround is insulated from earth by member 16.
Patent GB-829081-A (GB)
Title: Improvements in or relating to liquid dispenser devices
IPC: G05D7/01
Filed: 1956-03-29
Abstract: 829,081. Venting-apparatus. POITRAS, E. J. March 29, 1956 [April 1, 1955], No. 9963/56. Class 21. [Also in Group XXXIV] A liquid dispenser has a vent tube 28 extending down into its contents and a lower restricted fluid outlet 15a the resistance of which to fluid flow is adjustable. The venting arrangement permits air to enter through the liquid therein whenever the suction head above the liquid is of sufficient magnitude. This is stated to give a constant head effect. The liquid flow is controlled by a rotatable disc 17 covering the outlet 15a, the disc 17 having a capillary groove, the effective length of which is varied by rotating the disc 17. Specification 829,082 is referred to.
Patent GB-191104925-A (GB)
IPC: F42B30/04
Abstract: 4925. Hale, F. M. Feb. 27. Projectile fuses. -Relates to percussion fuses for projectiles fired by a stem from a small-arm, such as described in Specification 15,045/08, and consists mainly in arming the fuse by a member which sets back by inertia when the gun is fired. In the form shown in Figs. 3 and 4, the arming-member is a ring 5 enclosing one or more pins 7 which have rounded ends 8 projecting within a rounded groove 9 on the striker 3. The ring 5 is retained in the locked position shown, by,friction, or by wires adapted to shear or to bend, or by split parts 11 of the ring 5 engaging spring-like over bevelled shoulders 13. When the gun is fired, the ring 5, on account of its inertia, overcomes the force holding it in place and sets back, thus releasing the pins 7, which then fall off, or at least no longer impede the forward motion of the striker 3 on impact. A safety split pin 20 is detached by hand before the gun is fired.
Patent HK-146295-A (HK)
Title: Polyisocyanate prepolymer compositions and the use thereof in the preparation of polyurethanes
Inventor: PARFONDRY ALAIN
IPC: C08G18/76
Filed: 1995-09-14
Abstract: A polyisocyanate prepolymer composition comprising the reaction product of  a) an organic polyisocyanate or polyisocyanate mixture b) a high molecular weight isocyanate-reactive compound or mixture thereof having a molecular weight from about 1 000 to 10 000 c) a low molecular weight isocyanate-reactive compound or mixture thereof having a molecular weight of about 60 to below 1 000 wherein the weight ratio of low to high molecular weight compounds is in the range 40-1 000.
Patent HU-T54401-A (HU)
Title: Polymere compositions utilizable for producing biodegradable synthetic shapes and process for producing them
Inventor: BASTIOLI CATIA
IPC: C08L3/00
Filed: 1990-05-29
Abstract: A polymer composition usable for the production of articles of biodegradable plastics material includes an ethylene/vinyl alcohol copolymer and destructured starch. Preferably, the composition is obtainable by mixing the ethylene/vinyl alcohol copolymer, in a heated extruder, with a starch component constituted by a destructured starch composition produced beforehand by mixing starch with a high-boiling plasticizer, such as glycerine and a destructuring agent, preferably constituted by urea, in an extruder. Alternatively, the composition can be obtained by mixing the ethylene/vinyl alcohol copolymer with starch and a plasticizer in an extruder, with water added as appropriate and possibly with a suitable destructuring agent. The composition is particularly useful for the production of films with good resistance to perforation and tearing and moulded articles with improved mechanical strength. The products made from this composition are also good oxygen and carbon dioxide barriers.
Patent HU-T38199-A (HU)
Title: Extruded insecticide compositions, mainly on dog-collars
Inventor: CORROGAN EUGENE J
IPC: A01N25/00
Filed: 1985-10-14
Abstract: 57 Co-extruded insectidical pet collars contain one or more active insecticidal components in a desired relationship to the skin of the animal. The outside layer (away from the skin) contains carbamate, organo-phosphate chlorinated hydrocarbon or other insecticide that is irritating to the skin, or a cholinesterase inhibitor. The inside layer acts as a barrier to the insecticide. The layers of a multi-layered collar which is prepared by extrusion may also contain different insecticidal systems. A co-extruded collar is prepared by preparing two blends which have varying concentrations of active and/or inert ingredients, depending on the end product which is desired. Each of the blends is fed into an extruder wherein the polyvinyl chloride is fused. The melt blend from extruder B is then transferred to the die of extruder A where it becomes an integral part of the extruded strip from extruder A.