baber/WOPTO huggingface dataset:
Patent GB-1437832-A (GB)
Title: Halocyclobutanones
IPC: A01N53/00
Filed: 1973-04-16
Abstract: 1437832 Halocyclobutanones and preparation of cyclopropane carboxylic acid therefrom SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 11 April 1974 [16 April 1973] 18195/73 Heading C2C Halocyclobutanones of the general formula are prepared by treating the corresponding cyclobutane of the formula with a source of chlorine or bromine, e.g. a compound capable of generating chlorine or bromine in a chemically active form such as sulphuryl chloride or with elemental bromine. Cyclopropane carboxylic acids of the formula are prepared by heating a halocyclobutanone in the presence of a base and liberating the resultant acid salt by reaction with a suitable acid, e.g. an inorganic base such as sodium carbonate and an aqueous mineral acid such as hydrochloric acid.
Patent GB-619527-A (GB)
Title: Improvements in and relating to the refining of copper
IPC: C22B15/14
Filed: 1946-06-18
Abstract: 619,527. Metallurgical furnaces. REVERE COPPER & BRASS, Inc. June 18, 1946, No. 18280. Convention date, Feb. 19. [Class 51 (ii)] [Also in Group II] A furnace for use in removing bismuth from copper containing bismuth and cuprous oxide (see Group II) comprises a metal casing 17, Fig. 5, and a cover portion 19. The cover and casing are provided at their edges with continuous, spaced intermeshing flanges 21 and 23, the channels formed by flanges 23 being filled with oil or sand to seal the joint. The furnace casing is lined with refractory blocks 25 on which rests the furnace hearth 69. Metal on the hearth is heated by radiation from resistance heaters 39. The roof of the chamber is formed of slabs 31, preferably of graphite, which, being heated to incandescence, reflect heat downwardly on to the metal on the hearth. Metal to be treated is poured from a ladle into pouring box 1 from which it enters the furnace chamber through conduit 3 and a liquid seal formed by the downturned end 13 of the conduit and a dam 79 across the hearth. A series of spaced dams 81, of smaller height than dam 79, extends across the hearth. Between each pair of dams 81 partitions 83 of greater height are situated successive partitions being cut away at alternate ends to permit the flow of copper in a tortuous path across the hearth. The treated copper leaves the chamber through a liquid seal 95 and conduit 9. The surface of the metal in the furnace may be swept by a current of inert gas introduced from pipe 45 and removed through pipe 51. Fig. 8 shows apparatus for deoxidising copper and removing bismuth therefrom in successive steps. Molten copper is poured into box 103 from which it flows through a sealing chamber 111 to chamber 115 containing carbonaceous material 119 heated to incandescence by the passage of electric current between electrodes 127. Deoxidised copper overflows through conduit 3 to the furnace hearth 69 where bismuth is volatilized.
Patent GB-530980-A (GB)
Title: Flexible power transmission coupling
IPC: F16D3/74
Filed: 1939-06-23
Abstract: 530,980. Universal joints. HIRST, T. E. C. June 23, 1939, No. 18292. [Class 80 (ii)] In a universal joint in which a rubber or like flexible member 1 is cemented or frictional held to members 7 secured to shaft ends 2, 3, the shaft ends are kept in alignment by a ball and socket joint secured thereto. The ball member 5 is screwed to a bolt 4 attached to one of the members 7 and presses against a socket 6 associated with the other member 7 to compress the flexible member 1. A locking screw 55 is provided.
Patent GB-727117-A (GB)
Title: Improvements in or relating to cyclone furnaces
IPC: F23C3/00
Filed: 1953-07-02
Abstract: 727,117. Cyclone furnaces. BABCOCK & WILCOX, Ltd. July 2, 1953 [July 4, 1952], No. 18353/53. Addition to 711,253. Drawings to Specification. Class 51 (1). In a cyclone furnace of the type claimed in the parent Specification the supply means which discharge axially of the furnace chamber supply air only, the fuel and primary air being introduced into the end of the chamber remote from the gas outlet.
Patent GB-530887-A (GB)
Title: Improvements in or relating to devices for separating liquids and gases especially for removing air from fuel for injection into internal combustion engines
IPC: B01D19/00
Filed: 1939-06-23
Abstract: 530,887. Separating gases from liquids. DECKEL, F. (trading as DECKEL PRAZISIONS-MECHANIK & MASCHINENBAU, F.). June 23 1939, No. 18364. Convention date, June 25, 1938. [Class 1 (i)] In a device for separating gases from liquids comprising a cylindrical container 1 having a tangential inlet 2, an axial gas outlet 8, and a liquid outlet 4, the gas outlet is provided with a valve 15 which is maintained open by the pressure in the liquid supply conduit. The device is particularly applicable to the separation of air from fuel for internal combustion engines.
Patent GB-932151-A (GB)
Title: Method and apparatus for winding a continuous web
IPC: B65H19/22
Filed: 1962-05-14
Abstract: 932,151. Winding webs. E. I. DU PONT DE NEMOURS & CO. May 14, 1962 [May 15, 1961], No. 18425/62. Class 100 (1). Web winding apparatus wherein the web roll density is controlled comprises a positively driven winding drum 14, a positively driven core supporting mandrel 17 driven at a linear web speed approximately 10% greater than the drum speed, a support assembly 23 which supports the mandrel and is adapted to move frictionlessly in a horizontal plane on rails 25 as the diameter of the web roll increases, and hydraulic or pneumatic means 32 for applying a predetermined pressure on the support assembly. The core 15 on the mandrel 17 is allowed to slip to compensate for any gauge variations in the web 11 being wound. If the web 11 is slit at 13 into two or more webs, a second support assembly is provided on the opposite side of the drum 14. A plurality of cores may be mounted on a single mandrel. Each support assembly includes a support member 21 which carries two mandresl 17 and 19 and is pivoted so that either mandrel, when carrying a core, can be moved into operating relationship with the winding drum 14. When the web roll has reached a desired diameter, an eleetrical mechanism is actuated which starts the motor (not illustrated) which rotates the support member 21. A knife 33A cuts the web; a brush 33B wipes the leading edge of remaining web on to a new core having adhesive on its outer surface; and roller 33C holds the web on the new core as the core is rotated by the mandrel. Lay-on rolls 35 contact the surface of a wound roll during transfer to prevent telescoping of the outer layer of the web roll.
Patent GB-403700-A (GB)
Title: Improvements in aluminium alloys and the production thereof
IPC: C22C21/12
Filed: 1932-06-29
Abstract: Aluminium alloys containing 0.5-5 per cent of copper, 0.5-3 per cent of nickel, 0.1-2.5 per cent of magnesium, 0.2-2 per cent of iron, and 0.2-2.5 per cent of silicon, are improved by the addition of up to 1 per cent of cerium.  One or more of the metals manganese, chromium, and titanium may be present.  The alloys may be aged at not over 300 DEG  C., and such ageing may be preceded by quenching from 480-570 DEG  C.  The alloys may be made by adding to molten aluminium a number of aluminium alloys each containing one or more of the constituent elements, the magnesium being added last as such; or the cerium may be added as metal or as an alloy with any of the other metals.
Patent GB-852003-A (GB)
Title: Improvements relating to the production of wafers of semi-conductor material
Inventor: FREESTONE ROLAND
IPC: C23F1/02
Filed: 1958-06-10
Abstract: 852,003. Semi-conductor devices. SIEMENS EDISON SWAN Ltd. May 22, 1959 [June 10, 1958], No. 18536/58. Class 37 A slice of monocrystalline germanium or other semi-conductor is separated into sections by scribing lines on the slice and then etching with an etchant which preferentially attacks the strained regions of the semi-conductor. The etchant may consist of equal proportions of hydrogen peroxide and potassium hydroxide, and used at 70 to 80C. The scribing may be performed by means of a diamond probe, and a plurality of slices may be processed simultaneously. Fig. 2 shows a pattern of scribed lines on a crystal, and Fig. 3 the position after etching has taken place.
Patent GB-1001991-A (GB)
Title: Device for separating a continuous stream of flat bags or the like into counted batches
IPC: B31B19/74
Filed: 1963-05-10
Abstract: 1,001,991. Delivering bags &c. in counted batches. A. WINDMOLLER, and M. GENNERICH, [trading as WINDMOLLER & HOLSCHER]. May 10, 1963 [June 16, 1962], No. 18536/63. Heading B6H. Bags 1 or the like are fed from a bag-making machine 2, past counting-apparatus 7, to a conveyer 3, the bags being separated into counted batches on the conveyer by a pivoted lever 5 under the control of the counting-apparatus, said lever normally being held clear of the bags and periodically allowed to drop under its own weight to temporarily retain at least one bag on the conveyer. The counting-apparatus is preset according to the number of bags to be contained in each batch and is advanced one step each time a bag passes thereover. On reaching the required number, the counting apparatus operates a solenoid 9 to lift a pawl 10 clear of a ratchet 11. The latter is rotated through one revolution by drive gears 13 before being brought to rest by operation of a microswitch 15 by a cam 14. A two-armed lever 18 is rotated anticlockwise by rotation of the ratchet to disengage a member 21 secured to a shaft 6. Thus, the lever 5, also secured to the shaft 6, falls under the influence of gravity to engage the stream. The lever 5 is extensible and carries a roller 24 at its free end. A detector 25 stops the conveyer 3 in the event of a faulty feed.
Patent GB-279539-A (GB)
Title: Improvements relating to the automatic release of pyrotechnics from aircraft, and other moving bodies
IPC: B64D1/02
Filed: 1926-07-26
Abstract: 279,539. Scott, S. D. July 26, 1926. Dropping bombs and other articles from a height.-A device for releasing a flare from an aircraft if the speed of the aircraft falls below a predetermined value, for example when landing, comprises a wind-vane 6 attached to a lever 4 pivoted at 4<x> and formed with a hook 5 engaging an eve 11 on the flare, not shown. The flare is normally held up by a fusible wire at its bottom end, or by a clamp 3 which grips the usual electric wires for the igniter of the flare. While the flare is burning it remains suspended by the hook 5; but if the speed of the aircraft falls below a predetermined value, the weight of the lever 4 overbalances the wind pressure on the vane 6 and swings the hook 5 out of the eye 11, thereby releasing the flare. The position of the vane 6 along the lever 4 is adjusted according to the speed at which the device is to operate. The wind-vane device may be locked by a spring detent or by an auxiliary wind-vane, device adapted to release the main wind-vane device when the air pressure is sufficient to hold that device up.
Patent GB-750097-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: BROWN WILLIAM THOMAS
IPC: H04B17/40
Filed: 1953-07-03
Abstract: 750,097. Unattended repeaters. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. May 27, 1954 [July 3, 1953], No. 18568/53. Class 40 (4). [Also in Group XXXVIII] In an electrical signalling system a number of stations employ a common tone frequency interrupted at different cadence frequencies for signalling over a common channel, the cadence being characteristic of the signalling station and serving to identify it at a remote point. The invention is applied in a carrier wave transmission system to the signalling of fault conditions at unattended repeater stations in to a control station. Several tone frequencies may be used if there are a large number of stations. The interruptions may be controlled by a galvanometer relay or by electronic means, and identification may be effected by a plurality of galvanometer relays mechanically tuned to different resonant frequencies, or by the integrating arrangement shown. Signals incoming at C pass through a filter F1 tuned to the tone frequency to a flip-flop circuit T which resets in a time less than the interval between pulses of the fastest cadence used. Thus pulses of uniform length are produced, the spacing of which is indicative of the calling station. These are applied to an integrating circuit comprising condenser C2 shunted by a resistance R in series with a milliammeter M which may be calibrated to indicate the station concerned.
Patent GB-560434-A (GB)
Title: Improvements in or relating to bi-metallic electric cut-outs
IPC: H01H37/54
Filed: 1942-12-31
Abstract: 560,434. Converting. HEAYBERD, F. C., KRIMHOLTZ, J., and HEAYBERD & CO., Ltd., F. C. Dec. 31, 1942, No. 18588. [Class 38 (ii)] [Also in Group XXXVII] A bimetal dished annulus 1 is held to a base 2 by a rigid bracket 3 attached to one side of the ring; A contact 6 is borne on the opposite side which snaps into and out -of contact with an adjustable fixed contact 7. In an example, Fig. 5 (not shown), the bracket is in heat conducting relation; through a mica strip, with a cooling fin on a dry contact rectifier, the switch being arranged to open the main, transformer, or rectified current circuit, on overloading.
Patent GB-909868-A (GB)
Title: Improvements relating to the testing of blades with respect to oscillation
IPC: F01D21/00
Filed: 1959-06-01
Abstract: 909,868. Locating magnetic bodies. DAIMLER-BENZ A.G. June 1, 1959 [June 4, 1958], No. 18593/59. Class 37. Apparatus for measuring the amplitude of oscillation of rotor blades 1, 2, 3, &c. (Fig. 1), of e.g. a turbine, comprises pulse transmitters M 1 , M 2  energized by the passage of each blade tip to produce two pulse trains, each pulse from M 1  triggering the time base of an oscillograph which exhibits the next pulse from M 2  so that the horizontal displacement of the pulse, as seen on the oscillograph, is indicative of the distance between adjacent blades, and variations in this displacement are indicative of the oscillation of the rotor blades. The triggering pulse may alternatively be obtained from a pulse transmitter A fixed to the rotor, the phase position of the triggering pulse being delayed either mechanically or electrically so that one blade at a time can be examined. To avoid errors due to fluctuations in speed, the delay time for a triggering pulse is made small, e.g. by having n+1 auxiliary, unstressed blades associated with transmitter A for n blades associated with transmitter M 1  whereby only one selected blade produces pulses during the period of the n+1 time base excursions, and the selected blade can be changed by adding a small time delay between the triggering pulse and the time base. In another embodiment (Fig. 9), the auxiliary blades P 1  &c. are made of different lengths to produce pulses of different amplitudes from transmitter A, and the triggering action is confined by electronic means only to those pulses having more than a preselected minimum amplitude. The band width of the impulses shown on the screen is proportional to the double amplitude of the blade oscillation.
Patent GB-583505-A (GB)
Title: Improvements relating to injection-moulding machines
IPC: B29C45/53
Filed: 1944-09-28
Abstract: 583,505. Injection-moulding machines. CAPON, HEATON, & CO., Ltd., and BOOT, A. Sept. 28, 1944, No. 18598. [Class 87 (ii)] In an injection-moulding machine for thermoplastic or thermo-setting materials, the injection cylinder and plunger have combined with them a container for the material to be injected, means for heating only that end of the container which communicates with the cylinder, and means for forcing into the cylinder material rendered plastic by contact with the heated part of the container. In the Figure, a is the injection cylinder, h the plunger and c the die. The container g is situated above the cylinder a, with which it is in communication through an outlet i. The lower end of the container g is heated by an electrical heating element k. A piston m presses the material in the container g into contact with the heated end surface, where it is rendered plastic, being then forced into the cylinder a. An adjustable collar n limits the inward movement of the plunger h. The cylinder a may have an exterior heating means such as an electrical coil d. The nozzle b may have cooling means such as a water jacket e, to prevent excessive transfer of heat when a heated die is used.
Patent GB-735680-A (GB)
Title: Improvements relating to rowlocks
IPC: B63H16/06
Filed: 1953-07-06
Abstract: 735,680. Rowlocks. KENNERLEY, H. June 22, 1954 [July 6, 1953], No. 18659/53. Class 114. In a rowlock comprising a peg 1 adapted to turn in a socket at the side of a rowing boat and having a U-shaped head 2 in which is pivoted, by means of a bolt 3, a lug 4 attached to the underside of a channel member 5, said channel member allows an oar to be rested and secured therein, e.g. by means of screws through holes 6, so that the oar can be swung in a vertical plane about the pivot point of the channel member, and can swing in a horizontal plane about the axis of the peg but cannot slide on the channel member and cannot leave the boat without the peg being lifted out of its socket.
Patent GB-925174-A (GB)
Title: Leather lubrication
IPC: C14C9/02
Filed: 1959-06-01
Abstract: 925,174. Lubricating leather. G. H. VON FUCHS. June 1, 1959, No. 18664/59. Class 76. A process for lubricating leather comprises reducing the water content of wet tanned leather to between 45 and 60%, then applying a solution of a water-insoluble, oil-soluble polar lubricant in a water-immiscible organic solvent having an evaporation rate lower than that of water but readily volatile at normal leather drying temperatures and below, and then drying the leather In the examples, specimens of tanned leather. were treated with solutions in petroleum naphtha of glyceryl mono-oleate (with optional addition of a white mineral oil), sorbitan monooleate or glyceryl monostearate. Other ingredients mentioned are (a) solvents-kerosene, xylene and decahydronaphthalene; (b) lubricants-alkylphenyl ethers of polyalkylene glycols, long-chain alkyl and alkenyl succinic acids, long-chain alkyl arylsulphonates and Ca, A1 and Mg oleates and stearates.
Patent GB-281569-A (GB)
Title: Improved explosionproof fitting for electric glow-lamps
IPC: F21V23/04
Filed: 1927-07-14
Abstract: 281,569. Beckmann, J. July 14, 1927. Addition to 280,090. Switch mechanism interlocking with lids.-An electric lamp fitting, having switch-locking means as described in the parent Specification, is provided with a lockable cover to prevent unauthorized access to the switch, lamp socket, and other internal parts when the hinged door is opened. For this purpose the switch axle 6 is provided with a flat extension 32 in detachable connection with a bolt 29 projecting inwardly from one end of a cover 27, the other end of which is provided with a pin 28 to engage in a hole in the wall 3 of the stationary portion of the fitting. The flat extension 32 is passed though an open slot 31 in the top of the bolt 29, and when the hinged door is opened and the bulb is switched off, the flat extension 32 lies horizontally in an eye portion 30 of the bolt and locks the cover 27 in position.
Patent GB-847119-A (GB)
Title: Method and apparatus for condensing the vapours of metal chlorides
IPC: C01G1/06
Filed: 1957-06-13
Abstract: A method for condensing the vapour of a metal chloride that can be converted directly from the vapour to the solid state introducing <PICT:0847119/III/1> the metal chloride vapour into a cooled condensation chamber through a supply conduit which projects into the interior of the chamber and which is heated to a temperature above the solidification temperature of the metal chloride vapour, the velocity of the incoming metal chloride vapour and the dimensions and temperature of the chamber being so related that the vapour condenses to the solid state in the free space within the chamber.  In a preferred embodiment the product obtained by chlorinating a mixture of columbite ore and soot was introduced at a velocity of 40 cms. per second through a conduit 17 having a diameter of 15 mms. the conduit having been electrically heated to 450 DEG C. by an electric coil 19 into a condensation chamber 16 which is 250 mms. in height and has an internal diameter of 120 mms., the walls 18 of the chamber being maintained at a constant temperature by means of a jacket 20 through which cooling air or a liquid transfer medium is passed.  The solid chlorides deposit in the base 22 of the chamber and the gases pass out through a conduit 24.  In a modification Fig. 2 (not shown) a cold invert gas such as nitrogen, carbon monoxide or carbon dioxide, or a liquid chloride such as silicon tetrachloride, titanium tetrachloride or carbon tetrachloride is introduced along the inside of the condensation chamber and removed through a conduit. The process may be applied to the condensation of ferric chloride, aluminium chloride, tantalum pentachloride or niobrium chloride. The condensation chamber may be of nickel, steel, or nickelcoated or enamelled steel.  If the walls are to be maintained below 100 DEG C. the chamber may be made of aluminium.
Patent GB-291752-A (GB)
Title: Improvements in machines suitable for the manufacture of green fodder pulp
IPC: A23N17/02
Filed: 1927-07-14
Abstract: 291,752. Ereky, K. June 8. 1927, [Convention date]. Conical mills.-Raw material, preferably carried in a liquid stream, is fed through a funnel d into the space between an outer stationary truncated cone b and an inner rotating truncated cone c. The inner and outer surfaces of these two cones are provided with co-operating knives a, a', respectively. The height of the knives on the one cone differs substantially from that on the other cone. The knives may be set in parallel with the generatrix of their cone or may be curved or arranged in zig-zag lines. They may project different amounts at different places on the cones. The rotating member, which preferably is of great inertia, is mounted in ball bearings k, i, and is adjusted longitudinally to set the knives by screwing a casing g into a sleeve f of the stator b, thrust bearings h being interposed between the rotor and the sleeve. Lateral strain of the bearings k, i, is prevented by carrying these on sleeves m, p, keyed to the shaft by balls n. The knives may be fitted on cylindrical or paraboloid supports instead of upon cones and the outer member may rotate while the inner is stationary or both members may rotate at different speeds. Specification 270,629, [Class 49, Food &c.], is referred to.
Patent GB-891668-A (GB)
Title: Improvements in ambulance fittings
IPC: A61G3/00
Filed: 1957-06-13
Abstract: 891,668. Stretcher supports. CARTERS (J. & A.) Ltd., and LLOYD, E. G. June 13, 1958 [June 13, 1957], No. 18752/57. Class 108(1). A stretcher support of the type in which an upper stretcher carrier 1 mounted on tubular struts 5, 15, and 20 may be swung down in the direction of its length about pivots 6 to a low loading position, has the struts 5 and 15 provided with spigots 16 telescopically slidable therein so that the upper carrier may be adjusted in height, or one side of the upper carrier may be raised above the normal carrying position so that it may be swung down about pivots 13 to form a seat back rest. The carrier 1 is locked in the raised position by a hook 7 releasable by linkage 8 and a bolt 14, and is counterbalanced by springs (not shown) in tubes 9 connected by cables 10 running over pulleys 11 to a cross bar 12. Each of the spigots 16 is provided with a series of annular grooves, Fig. 3, any one of which may receive a locking screw 24, or a pin may be passed through a radial hole in the spigot. The upper end of each spigot is screwed into a lug 19 forming part of the carrier 1.