baber/WOPTO huggingface dataset:
Patent GB-876062-A (GB)
Title: Improvements in or relating to the production of polymeric material from monomeric epoxy compounds
Inventor: WADDAN DHAFIR YUSUF
IPC: C08G65/08
Filed: 1958-12-05
Abstract: Monomeric epoxy compounds of general formula:  <FORM:0876062/IV (a)/1> -in which R and R1 are each a hydrogen atom or hydrocarbon radical; R11 is a hydrogen atom, or a hydrocarbon or halohydrocarbon radical; or R or R1 may be joined to R11 to form a cycloaliphatic ring-or a mixture of two or more monomeric epoxy compounds of the above formula, are polymerized in contact with a catalyst of general formula: [M1(R1)(R2)a(F)c](M2)y in which M1 represents magnesium, calcium or aluminium; M2 represents a Group I metal or, when M1 represents aluminium, M2 may represent magnesium or calcium; R1 represents a phenoxy or substituted phenoxy radical; R2 represents a hydrocarbon radical, an alkoxy or phenoxy radical; F represents a fluorine atom; a and c are either integers or zero, and a+c= valency of M1; and <FORM:0876062/IV (a)/2> Epoxy compounds specified are epichlorohydrin, ethylene oxide, 1, 2-propylene oxide, 2, 3-butylene oxide, 1, 1-dimethyl-ethylene oxide, isopropyl ethylene oxide, cyclohexene oxide and styrene oxide.  Examples of catalysts which may be used are sodium aluminium tetraphenoxide, potassium aluminium ethyl triphenoxide, magnesium aluminium phenoxide and calcium aluminium phenoxide as well as complexes of the type NaFAl(O???)3. The reaction may be carried out at a temperature up to 300 DEG C., at pressures from atmospheric up to about 50 atmospheres and in the absence or presence of a solvent, e.g. benzene, toluene and xylene; an aliphatic hydrocarbon or a chlorinated hydrocarbon.  In the examples, polymers are prepared from (1) ethylene oxide using magnesium aluminium phenoxide:  <FORM:0876062/IV (a)/3> as catalyst and benzene as solvent (2) propylene oxide using calcium aluminium phenoxide and n-hexane.
Patent GB-395565-A (GB)
Abstract: 395,565. Fluid-actuated valves. GAWA PATENT-VERWALTUNGS-AKT.-GES., Schaffhausen, Switzerland. Nov. 19, 1932, No. 32761. Convention date, Nov. 19, 1931. [Class 135.] Valves controlled by pilot or relay valves.-In a gas heating-apparatus, a bi-metallic strip b is heated by a jet c to open a spring-pressed valve f for supplying gas to the underside of a diaphragm o, controlling a cut-off and pressureregulating valve p for the main burner, and to a jet i, which is ignited by the jet c and serves for igniting the main burner, the spring- controlled valve d is then released to extinguish the jet c and the strip b is further heated by the jet i to effect the closing of the valve f. The valve p co-operates with a seating q as a cutoff valve and with a seating r as a pressure regulating valve, the stem p<1> passing loosely through the wall u. Gas may be admitted to the pipe a through a regulator sensitive to a deficiency of water in the apparatus heated, and the jet c may be ignited by a match or a constantlyburning pilot jet on opening the valve d. The strip b is provided with a bifurcated end adapted, on heating, to engage a trip member s on a lever s<1>, pivotally connected to the valve f, the lever being rocked under the control of a guide t until the member s is released from the strip, permitting the valve f to close automatically. The lever s is controlled by a weight or spring to allow for the return of the strip b on cooling and may be provided with a plate s<2> for engagement by the strip.
Patent GB-1434279-A (GB)
Title: Operating of the leveller doors of horizontal coke ovens
IPC: C10B25/14
Filed: 1973-08-22
Abstract: 1434279 Leveller door operating means KRUPP-KOPPERS GmbH 22 Aug 1973 [26 Aug 1972] 39868/73 Heading C5E Leveller door operating means mounted or adapted for mounting on the pusher machine of a horizontal coke-oven battery comprises a supporting device, e.g. girder 13, adapted for movement relatively to the pusher machine 6 and including guide means carrying a gripper lever 19 for guided movement, relatively to the supporting device, towards and away from the battery so as to enable the gripper lever to be engaged with a leveller door handle 25 without play and to follow its movement during dooropening or -closing produced by the linear movement of the supporting device relatively to the pusher machine in the direction of the length of the battery, and whilst the gripper lever is engaged with the door handle. The guide means permit movement of the gripper lever in a direction at right angles to the direction of movement of the supporting device on the pusher machine and provide resilience in this direction so that when the gripper lever is engaged with a handle and the supporting device moves in the longitudinal direction of the battery, the gripper lever yields resiliently to enable it to follow the arcuate movement of the handle about the leveller door hinge. The guide means comprise an operating device 21 acting on operating arm 20 which is resilient or resiliently mounted on the supporting device for effecting the movement of the gripper lever, e.g. by device 21 being mounted on lever 22 pivoted to girder 13 and controlled by spring mechanism 23. The supporting device may be equipped with two gripper levers 19, 19a and associated guiding means spaced apart in the direction of the length of the battery by a distance corresponding with an appropriate multiple of the oven axis spacing so that for a given position of the pusher machine relatively to the battery, the leveller door operating means may be utilized to open or close the door of either of two adjacent or neighbouring ovens.
Patent GB-958357-A (GB)
Title: A swivel connection for use in pressure fluid supply lines
Inventor: MELSOM WALTER ARTHUR
IPC: F16L27/093
Filed: 1959-11-25
Abstract: 958,357. Pipe joints. OIL FEED ENGINEERING CO. Ltd. Nov. 25, 1960 [Nov. 25, 1959], No. 40101/59. Heading F2G. A swivel connection comprises a support s, Fig. 1, having a fluid supply passage m opening at n at its periphery, a hollow banjo l having a bearing surface to turn on the periphery of the support and a flow passage k, and sealing rings e disposed axially of the support about the ports n. The rings e engage the bearing surface of the banjo and the periphery of the support and also transverse surfaces on the support formed by a flange g and a ring j. The rings e are deformable and are pressed by the conveyed fluid against the bearing and transverse surfaces, the latter taking the axial pressure exerted on the sealing rings. The rings which are of U cross-section are held apart under no flow conditions by spacer rings f and are preferably of rubber but nylon or polytetrafluoroethylene may be used when the natural resilience may be insufficient. In the latter case the sealing rings have a pressure applied by means of a spring s, Fig. 3, forcing the rings n and o into the valley of the U-shaped sealing rings, the flanges of which are urged apart. Alternatively a coil spring may be provided. A skirt p may be provided on the sealing rings.
Patent GB-1480869-A (GB)
Title: Rotary magnetic head apparatus
IPC: G11B15/61
Filed: 1975-10-03
Abstract: 1480869 Rotating magnetic head apparatus INTERNATIONAL BUSINESS MACHINES CORP 3 Oct 1975 [23 Dec 1974] 40468/75 Addition to 1456166 Heading G5R A rotating magnetic head apparatus supports a helical wrap of magnetic tape 32 around a pair of stationary cylindrical mandrels 10A, 10B between which a rotating magnetic head 12 is mounted to traverse the helical wrap of tape, and in the regions 34 where the head during its rotation crosses the edges of the tape ramps 16, 22 are mounted on the mandrels 10A, 10B to lift the edges of the tape thereon above the path of the rotating head. Adjacent ends of the ramps 16, 22 project over a rotor 11 carrying head 12, and such projections are undercut to permit passage of the head. The tape is supported on mandrels 10A, 10B by an air film, air under pressure being supplied into the mandrels 10A, 10B, which are hollow, and flowing through the mandrel walls and through the ramps 16, 22 to create the air film, mandrels 10A, 10B and ramps 16, 22 being made of porous brass or porous stainless steel. The assembly may be used in apparatus of the type disclosed in Specification 1,440,279.
Patent GB-1513467-A (GB)
Title: Synchronizing arrangement for colour video systems
IPC: H04N9/87
Filed: 1975-10-03
Abstract: 1513467 Colour television BASF AG 3 Oct 1975 [4 Oct 1974] 40543/75 Heading H4F Synchronizing arrangement for a home entertainment colour television system which includes a television receiver and display 31, a television camera 32 and a video recorder 36 e.g. a linear magnetic tape recorder which permits line sequential colour recording. Synchronization in recording Off-Air from television receiver 31 is effected with switch 33 at R and switches 72 and 72' at "TV" i.e. the composite NTSC (or PAL) colour signal is fed to low pass filter 16, colour burst gate 34 controlled by burst gate pulse BG and sync stripper 58. The phase of the colour burst from gate 34 is compared 35 with the unmodulated colour subcarrier from VCO 53 via divider 52 and lowpass filter 51 and any error signal fed back to VCO 53. Thus VCO 53 is phase locked to the incoming colour bursts as is line frequency f H  impressed on tape drive control 38 from VCO 53 via dividers 54 and 55. The separated horizontal sync pulses from stripper 58 control VCO 63 via turnaround (in tape drive direction) inhibit gate 59 controlled by the recorder, pulse generator 61 and AFC 62 (receiving horizontal drive pulses HD from sync generator 64). The subcarrier from VCO 53 is phase split 3 to provide via trisequential switch 4 the three line sequentially switched phases for AM demodulator 5 which receives the colour signal via colour bandpass filter 6. Adder 7 thus receives the luminance signal from filter 16 and the demodulated line sequential colour difference signals from demodulator 5 and provides the line sequential signal for recording to magnetic head 37. Logic circuit 66 generates a blue line identifying pulse BJ which is placed on the back porch and recorded. The trisequential sequencer 57 which supplies the drive pulses to trisequential switch 4 is driven by the horizontal drive (HD) pulses from generator 64. Synchronization in recording Off-Camera 32 is the same as Off-Air with switches 72 and 72' in the "camera" position. Thus VCO 53 is free-running and VCO 63 receives the line frequency output provided by VCO 53 via dividers 54 and 55-camera 32 does not provide any sync information. Synchronization in Playback Mode includes locking VCO 63 to the horizontal sync pulses from the tape; switches 72 and 72' are at "TV" position and switch 33 at "P" position. VCO 53 is freerunning since the played back signal does not include any bursts, these being added to the played back composite signal in adder 41 via burst producing gate 40 from VCO 53 output. The resulting composite signal from adder 41 is displayed on TV 31. The red, blue, and green line pulses (RGB) supplied by trisequential sequencer 57 to switch 4 are synchronized by blue identification (BJ) detector 56 through gate 71 to thereby permit the trisequential signals to be properly recombined with the aid of AM modulator 8, delay lines 10 and 11 and combination demodulatormatrix 13.
Patent GB-1181850-A (GB)
Title: Industrial Process for Bleaching Bast Fibres by Applying Chlorinated Derivatives of Cyanuric Acid
IPC: D06L3/06
Filed: 1967-09-05
Abstract: 1,181,850. Bleaching bast fibres. OFFICE NATIONAL INDUSTRIEL DE L'AZOTE. 5 Sept., 1967 [6 Spet., 1966], No. 40604/67. Heading D1P. Textile materials made from bast fibres, e.g. linen, hemp or jute, are bleached by a continuous or semicontinuous process comprising impregnating them with an aqueous alkaline solution containing 40-60 g/l of alkali and subjecting them to a steam treatment, impregnating them with an aqueous solution containing a chlorinated derivative of cyanuric acid and oxidising the resultant material with hydrogen peroxide. Fabric may be passed loosely at high speed into a washing machine where it is contacted with boiling water optionally containing detergents or wetting agents, wrung out, impregnated with an aqueous solution containing 40-60 g/l caustic soda, 90-100% wrung out, passed to a vaporiser having a steam atmosphere at 100C and then disposed in folds in a ripening apparatus where it stays for 10-20 minutes at 100C. It is then washed, rinsed, passed to an aqueous bath containing the chlorinated cyanuric acid, e.g. a mixture containing trichlorocyanuric acid, cyanuric acid and a carbonate or alkaline bicarbonate, or an alkaline salt of dichlorocyanuric acid to which an acid such as acetic, formic or phosphoric acid is added, containing 7-15 g/l of available chlorine and having a pH of 4-5, wrung out at 100-110%, deposited in folds in a second ripening apparatus where it remains for 10-20 minutes at a temperature between atmospheric and 50C and is then washed with boiling water and wrung out. The fabric is then passed through an aqueous alkaline bath of hydrogen peroxide stabilised with sodium silicate, passed into a vaporiser where its temperature is raised to 100C, deposited in folds in a third ripening apparatus where it remains for 10-20 minutes at 100C and washed. Alternatively the second step with the solution of the chlorinated cyanuric acid may be effected by winding the fabric impregnated with the solution of the chlorinated cyanuric acid on a slowly rotating drum at 20-50C for 1-2 hours and then unwinding it, wringing it and, washing and treating it with hydrogen peroxide. The fabric may be given a preliminary treatment comprising impregnating it with an aqueous solution of a chlorinated derivative of cyanuric acid containing 7-15 g/l of available chlorine and having a pH of 4-5 at 20-50C., depositing it in the form of folds in a ripening apparatus or winding it on a slowly rotating drum for 1-3 hours, washing hot, rinsing and wringing out.
Patent GB-1005989-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L31/12
Filed: 1963-10-16
Abstract: <PICT:1005989/C4-C5/1> <PICT:1005989/C4-C5/2> A semi-conductor device comprises a body having one junction which is able to generate recombination radiation on injection of charge carriers, and another junction capable of absorbing said radiation with the emission of charge carriers.  In one embodiment, Fig. 1, a monocrystalline body of GaAs, with a P-N junction 5 formed by successive doping with Te and Zn or Cd, has a region 4 of Ge (which has a narrower band gap than GaAs) forming a junction 6 with the N-type GaAs.  The Ge may be P-type or N-type (Fig. 2, not shown). Light emitted at junction 5 forms electron-hole pairs at the junction 6 which provide the collector current.  The device may be of GaP with a collect region of Si.  In an alternative embodiment (Fig. 8, not shown), the device is made solely of GaAs, two N-P junctions being separated by a relatively thick layer of intrinsic material.
Patent GB-1205563-A (GB)
Title: Improvements in or relating to synthetic polyamides
Inventor: LODGE JOHN EWART
IPC: C07C309/59
Filed: 1966-09-13
Abstract: 1,205,563. Polyamides; polyolefin compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 Aug., 1967 [13 Sept., 1966], No. 40815/66. Headings C3P and C3R. 0.25 to 10 mol. per cent of units derived from a metal sulphonate salt of 9,9-bis omega carboxyalkyl fluorene mono- or di-sulphonic acid are incorporated in a polyamide to improve dyeability with basic dyestuffs. Several C 4-20  aliphatic diamines, C 6-22  aliphatic dicarboxylic acids, C 5-21  aliphatic aminoacids, and carboxyalkyl fluorene sulphonates are specified. The sulphonated units may be incorporated directly or by heating a polyamide without sulphonated units with a second polymer containing a higher proportion of such units. Viscosity stabilizers e.g. monoamines or acetic acid, dyestuffs, pigments, delustrants and plasticizers may also be incorporated in the polyamides. In examples the sulphonated units are incorporated in nylons 6, 66 and 612 of varying relative viscosity and amine and carboxy end group contents. In Examples 6 and 7,25% of the sulphonated polymer is melt blended with polyethylene terephthalate and polypropylene respectively and the products melt spun.
Patent GB-1167421-A (GB)
Title: Production of Isobutene
Inventor: RIELLY THOMAS
IPC: C07C7/171
Filed: 1967-09-08
Abstract: 1,167,421. Separating isobutene. BRITISH HYDROCARBON CHEMICALS Ltd. 9 Sept., 1968 [8 Sept., 1967], No. 41059/67. Heading C5E. Isobutene is separated from mixtures of isobutene, n-butenes and butadiene by extraction with 45-55% wt./wt. sulphuric acid, treating the acid extract with diisobutene, separating, and recovering isobutene from the acid, e.g. by heating. The diisobutene used may be a byproduct of the process. The acid extract may be subjected to flash distillation or inert gas stripping before or after the diisobutene treatment.
Patent GB-1117551-A (GB)
Title: Anti-theft mechanism for motor vehicles
IPC: B60R25/04
Filed: 1965-09-28
Abstract: 1,117,551. Starting prime movers. G. S. YOSHIDA. 28 Sept., 1965, No. 41122/65. Heading H2H. [Also in Divisions F1, G4 and H1] To prevent the theft of a motor vehicle including a battery operated starter system, an engine starter switch 11 and a lock controlled switch 12 having an ignition position and a starter position, a circuit interrupter 15 is provided in the circuit 7, 7a between the battery 5 and the starter switch. The interrupter 15 is operated by a solenoid 25 in a circuit 16 including a manually settable switch 17. A circuit 25 provides an earth circuit should the circuit of switch 17 be broken. The switch 17 comprises two or more units 73 each formed by a dielectric fixed base 74 provided with spaced contacts 75 and 76 connected to lines 27 and 44, respectively. The contacts are biased against a dielectric dial 77. The dial carries an adjustable metal ring (80), Fig. 2 (not shown), having a dielectric strip (82) which bridges the contacts 75, 76 to isolate the lines 27 and 44 when the dial graduations are correctly set. With the switch 17 incorrectly set the circuit 16 is closed and the switch 18 energized to operate the solenoid 23, the alarm bell 22, a switch 20 which prevents reverse current flow to the starter switch 11 and a switch 21 which retains switch 18 energized until the circuit 16 is opened. The circuit 16 is closed when the lines 27 and 28 are cut by the switch 26 in the circuit 25. To prevent the vehicle drive from being engaged with the engine running and the circuit 16 and switch 19 closed, a switch 14, closed with the vehicle transmission in neutral, is opened causing switch 24 to become deenergized stopping current flow to the ignition coil 66.
Patent GB-1243381-A (GB)
Title: Improvements in smoke generators
Inventor: STOYLE WILLIAM JOHN DOUGLASS
IPC: C06D3/00
Filed: 1968-08-28
Abstract: 1,243,381. Smoke generator. CONCEPT ENG. Ltd. 28 Aug., 1969 [28 Aug., 1968], No. 41136/68. Heading A5G. A smoke generator, comprising a pressure vessel containing oil, means for pressurizing the vessel with an inert gas, means for producing a smoke-developing gas-oil mixture therein and means for allowing outlet of the smoke-developing mixture (to the smoke-generating heater) is characterized by the provision of venting means for relieving the pressure in the vessel, the venting means incorporating an oil trap, e.g. a chamber containing metal wool. Preferably the venting means is connected in the gas inlet duct so that admission of gas tends to convey oil in the trap back into the pressure vessel.
Patent GB-940753-A (GB)
Title: Improvements in or relating to gas lighters of the suspended fuel container type
IPC: F23Q2/16
Filed: 1961-11-16
Abstract: 940,753. Gas lighters. ETABLISSEMENTS GENOUD & CIE. Nov. 16, 1961 [Dec. 23, 1960], No. 41144/61. Heading F4F. A gas lighter comprises a fuel container 2 having a stop-valve 4 and a control lever pivoted about a point 15 in the cover 1 of the lighter and adapted to engage a clip 7 in a groove 6 on the stem of the valve. The container is held fast against upward movement through abutment of its upper edge against the lower edge of the cover 1. The stem 5 forms a burner tube disposed beneath an aperture 8 in the cover 1. One end 18, 19 of the lever projects out from the casing 3 of the lighter and the other end 16 is forked to engage the clip 7. Return springs 21 act between the cover and the lever. Members 10 engaged by the user's thumb and a knurled flint wheel 11 are rotatably mounted on a spindle 9 in the cover 1. A flint tube 13 mounted in the cover 1 passes through an aperture in the control lever. A blade spring located on a shoulder 22 of the flint tube engages the walls of the casing 3.
Patent GB-1529795-A (GB)
Title: Hinged closures for containers
IPC: B65D55/16
Filed: 1974-09-20
Abstract: 1529795 Hinged closure JOHNSEN & JORGENSEN (PLASTICS) Ltd 19 Sept 1975 [20 Sept 1974] 41159/74 Heading B8T A hinged closure comprises a cap part 1, an integral anchor band 3 and means for separating the cap part and anchor band circumferentially except over an interconnecting zone constituting a hinge 15, the means comprising an arcuate tear band 2 diametrically opposed to the hinge and a line of weakness on each side of the hinge between the tear band and the hinge. The tear band 2 is defined by two weakened membranes 12, 13, the membrane 13 extending beyond the ends 14 of the tear band 2 to the hinge 15. Two diametrically opposed posts 20 are provided on the membrane 13 to facilitate controlled pressure release before complete removal of the closure from a container. Preferably, the tear band 2 extends for 45 degrees on each side of a thumb tab 11, while the thickness of the membranes joining the tear band 2 to the cap part and anchor part and that of the area of weakness is preferably between 0À008 inches and 0À022 inches. The closure is preferably made of a mixture of about 90% low density polyethylene and about 10% high density polyethylene.
Patent GB-955787-A (GB)
Title: Control circuit
IPC: H02P27/02
Filed: 1962-11-01
Abstract: 955,787. Controlled non-linear inductors. BENDIX CORPORATION. Nov. 1, 1962 [Nov. 3, 1961], No. 41442/62. Heading H3B.] Also in Division H2] A control circuit for a two-phase servomotor 29 comprises two cores 3, 5 with main windings 6, 9 and 13, 17, respectively, arranged in a bridge so that an A.C. voltage is produced between terminals 21, 25 only when the bridge is unbalanced by D.C. control currents in windings 37 and 39 on the cores. Windings 7, 19, 15 and 11 are booster windings arranged to increase the unbalance current by induction. The capacitor 33 is provided to enable one A.C. supply to be used to activate both motor windings 31 and 35 as the capacitor shifts the phase of the output by 90 degrees. Alternatively by altering the second phase of a three-phase input by 30 degrees, the unit may operate from a three-phase supply. Instead of using the windings 7, 19, 15 and 11 as booster windings, windings 7 and 11 may be reversed and by suitably choosing the turns ratios any fraction of the voltage between terminals 21 and 25 may be provided across the motor 29.