baber/WOPTO huggingface dataset:
Patent GB-1066390-A (GB)
Title: Cross-linked polyimides and methods of producing same
IPC: C03C3/074
Filed: 1965-11-12
Abstract: A cross-linked polyimide comprises the unit <FORM:1066390/C3/1> where R1 is a bivalent radical containing at least two carbon atoms and is a (substituted) alkyl or (substituted) aryl residue which may be bonded by -CH2-, -SO2-, and -O-, and where R12 is a tetravelent radical containing at least two carbon atoms, two of the valencies, carried by two different carbon atoms, being saturated by the two carboxyl groups and the other two valencies being carried by adjacent carbon atoms.  The polymer may be derived from a maleic acid N,N1-bis-imide, e.g. N,N1-(m or p) - phenylene - bis - maleimide; N,N1-ethylene - bis - maleimide; N,N1 - hexamethylene - bis - maleimide; N,N1 - diphenylsulphone - bis - maleimide; N,N1 - dicyclohexylmethane - bis - maleimide; N,N1 - p - a ,a 1 - dimethylene - cyclohexane - bis - maleimide; N,N1 - m - xylylene - bis - maleimide; N,N1-p,p1 - diphenylmethane - bis - maleimide and/or N,N1 - p,p1 - diphenyl - ether - bis - maleimide. The polymer may be produced by heating the monomer at 80-400 DEG  C. in bulk or in a solvent, e.g. xylene or triethylene glycol dimethyl ether and in the presence of a catalyst, e.g. dicumyl- or dibenzoyl - peroxide or azo - bis - isobutyranitrile, at a super-atmospheric pressure. The polymerization may be carried out in a moud and in the presence of silicon dioxide.
Patent GB-1443486-A (GB)
Title: Binary counters
IPC: H03K21/40
Filed: 1974-11-11
Abstract: 1443486 Electronic counters; errors detecting and correcting INTERNATIONAL BUSINESS MACHINES CORP 11 Nov 1974 [28 Dec 1973] 48623/74 Heading G4D A binary counter comprises two parallel channels 10, 12 counting the input pulses, means for detecting when an error occurs causing the two counts to differ and means for distinguishing a transient error from one due to a hard failure of the circuit. In Fig. 1 the two counters 10, 12 are interconnected by logic circuitry comprising (a) exclusive-OR gates 24 (a-e) which detect when the counts differ giving an output signal from OR gate 26; (b) AND gates 28 and OR-gates 30 arranged to detect when the count in 10 is greater than in 12 giving an output from OR-gate 32 and (c) pairs of AND-gates 34, 36 arranged to detect when an error occurs during the advance, based upon the fact that if the counter advances correctly only the lowest order "0" changes to "1", and giving an output from OR-gate 37. The logic of Fig 3 controls the advance of the two counters (one after the other) and uses the outputs from the three gates 26, 32, 37 to check that each has advanced correctly, to automatically correct a transient error or to close down the system in the event of a hard failure. The signal to advance the counter is applied via an AND gate 46 and triggers a clock 44 which produces five non- overlapping timing pulses t 1 -t 5 . At t 1  counter 10 is advanced; if at t 2  the count in 10 is not greater than in 12 a hard failure is assumed, OR- gate 48 inhibits gate 46 and the system is closed down; if at t 2  the count in 10 is greater but a signal from gate 37 indicates an incorrect advance (two or more steps) then latch 50 is set and at t 3  the value in counter 12 is reset into 10 (i.e. 10 restored to orginal state); if however at t 2  the count in 10 is greater and there is no signal from 37 latch 52 is set and at t 3  counter 12 is advanced. If at t 4  the count in 10 is found greater than in 12 then gate 46 is inhibited as before. If count in 10 is less than in 12 latch 54 is set and at time t 5  the value in 10 is transferred to 12.
Patent GB-1400034-A (GB)
Title: Improvements in or relating to aircraft
Inventor: HEMPENSTALL JOHN
IPC: B64C1/14
Filed: 1972-10-23
Abstract: 1400034 Aircraft SCENIC FLYING Ltd 16 Oct 1973 [23 Oct 1972] 48749/72 Heading B7W An aircraft intended for providing an uninterrupted field of view for sight-seeing passengers or for operational observers has the forward end of the fuselage formed as a cabin and clad largely with clear plastics sheeting and arranged to provide seating at two or more levels with the pilot's seat and controls arranged in the rear of the cabin at the higher or highest level. The aircraft may have a high aspect ratio or a STOL form of wing and the power plant may be an enginedriven ducted fan or propeller arranged at the rear of the fuselage with the tail unit carried by twin booms or with the fan or propeller driven by shafting from a forward mounted engine in an aircraft with a conventional fuselage-mounted tail unit.
Patent GB-1195308-A (GB)
Title: Process for Esterification of Butadiene Polymers
IPC: C08C19/00
Filed: 1968-10-15
Abstract: 1,195,308. Esterifying butadiene polymers. FIRESTONE TIRE & RUBBER CO. 15 Oct., 1968 [31 Oct., 1967], No. 48933/68. Heading C3P. Butadiene polymers are treated in solution with a mixture of a carboxylic acid and sulphuric acid so as to make the carboxylic acid add across the double bond. The examples describe the reaction of polybutadiene and copolymers of butadiene with styrene, propylene, vinyl toluene, vinyl naphthalene, acrylonitrile and methyl methacrylate with acetic acid. The polymers may be hydrolysed with NaOH to give hydroxyl groups.
Patent GB-1222765-A (GB)
Title: Bow and anchor light
IPC: B63B45/00
Filed: 1969-10-07
Abstract: 1,222,765. Navigation lamps. AQUAMARINE MFG. Ltd. 7 Oct., 1969 [6 Feb., 1969], No. 49280/69. Heading F4R. A navigation lamp for a ship comprises a pair of light sources 48, 64 disposed one above the other, the source 64 being adapted to radiate a fan-shaped beam extending through a 360 degree arc for use when the ship is at anchor and the source 48 being masked by a screen 30 so that it can radiate a 225 degree beam to serve as a bow or running light. A conical lens 36 is snap-fitted on to a lip 28 integral with the plastics cover 18 of a metal supporting plate 14, a sealing gasket 22 being disposed between the plate and the cover. A drainage hole 29 is formed in the cover.
Patent GB-1248741-A (GB)
Title: Internal combustion engines
Inventor: HOARE TERENCE GRAHAM
IPC: F02M31/07
Filed: 1968-10-18
Abstract: 1,248,741. Heating charge. BRITISH MOTOR CORP. Ltd. Sept.30, 1969 [Oct.18, 1968], No.49666/68. Heading F1B . An I.C. engine comprises an air intake duct with two opposed inlets 3, 4, Fig.1 for heated and unheated air-flows, which are united in their passage through the duct and a cantilever-like bi-metallic strip carrying a vane sandwiched between elastomeric members which can seat on the flanged ends of the inlet ducts, the bi-metallic strip deflecting towards one or other of the air inlets when the temperature deviates from a predetermined valve. In another embodiment the bi-metallic strip is U-shaped.
Patent GB-1499609-A (GB)
Title: Opaque door including break-in detection means
IPC: G08B13/04
Filed: 1976-11-29
Abstract: 1499609 Doors CGEE ALSTHOM SA 29 Nov 1976 [10 Dec 1975] 49672/76 Heading E1J A door comprises an opaque panel and a superposed glass panel 3 having a glass breakage detector 5. The glass is glued to wooden panels 1, 2 and detector 5 glued to the glass and located in a recess 4.
Patent GB-1129026-A (GB)
Title: Process of preparation of water-soluble derivatives of tetracyclines
IPC: C07C233/00
Filed: 1966-11-07
Abstract: 1,129,026. Tetracycline derivatives. CIPANCOMPANHIA INDUSTRIAL PRODUTORA DE ANTIBIOTICOS S.A.R.L. 7 Nov., 1966 [10 Nov., 1965], No. 49824/66. Heading C2A. A water-soluble derivative of tetracycine of formula wherein R 1  is H or OH, R 2  is H or halogen and R 3  represents NR 4 R 5  or NHR 5  wherein R 4  and R 5  are alkyl, mono- or polyhydroxyalkyl, carboxyl-substituted alkyl, cycloalkyl, aromatic or heterocyclic radicals or are joined through other atoms to form one or more alicyclic, aromatic or heterocyclic rings, is prepared by the condensation of a nitrogen base of formula R 4 R 5 NH or R 5 NH 2  (R 4  and R 5  having the same meanings as above) and a tetracycline in the presence of dimethyl sulphoxide. Specified nitrogen bases are piperidine, morpholine, pyrrolidine, benzylamine, furfurylamine, aniline, N- (beta hydroxyethyl) - diethylenediamine 1-azaspiro[4,5]-decane, amino acids and glucosamine. Tetracyclines specified are tetracycline, oxytetracycline and chlortetracycline.
Patent GB-1176598-A (GB)
Title: Line-spacing arrangement for a teleprinter or a similar printing machine.
Inventor: CORTONA ALESSANDRO
IPC: G06K15/06
Filed: 1968-10-21
Abstract: 1,176,598. Selective printers. ING. C. OLIVETTI & C., S.p.A. 21 Oct., 1968 [16 Nov., 1967], No. 49909/68. Heading B6F. Line-spacing, variable and fractional.-In a selective printer having a fixed platen 6 and a type carriage 8 movable along the platen, the line-spacing arrangement for rotating the platen shaft comprises a differential having a planet gear 13 and two sun gears 21 and 22, the planet gear being arranged to rotate the platen shaft 7. At least one of the sun gears is coupled to a motor-driven shaft by a clutch, which when engaged, causes the sun gear to rotate through a predetermined angle. In Fig. 1, two 90 degree cycle clutches 31 and 36 are mounted on a continuously motor-driven shaft 29. Two electromagnets 71 and 74 release respectively the detents (64, Fig. 2) of each clutch to allow one or other or both clutches to rotate respective gears 27 and 33. Gear 27 of clutch 31 drives sun gear 21 via gear 26 and sleeve 23 rotatable on a shaft 16, with a 2 : 1 ratio. Similarly, gear 33 of clutch 26 drives sun gear 22 with a 1 : 1 ratio. The planet gear 13 is mounted on a shaft 14, pinned to shaft 16, which drives the platen roller via gears 17, 18 and 19. Clutch 31 provides a one line-space feed, clutch 36 provides a two line-space feed. Both clutches operated together provide a three line-space feed. In an alternative embodiment, Fig. 5, the planet gear 78 is mounted on a shaft 77 pinned directly on the platen roller shaft 76. Only sun gear 79 is driven by a motor via a part revolution clutch 86 driving a worm wheel 82. The other sun gear 81 is connected to a milled knob 87 for rotating the platen manually to provide fractional spacing. The milled knob 87 is connected by means of a friction clutch 91 to a gear 89 normally held stationary by a spring-loaded detent roller 88. Axially movable push-button 92 disengages the clutch 91 from the gear 89, thereby allowing milled knob 87 to rotate the platen 6.
Patent GB-1066530-A (GB)
Title: Electrostatic discharging system for aircraft
IPC: B64D45/02
Filed: 1964-12-09
Abstract: 1 066,530. Automatic control systems. DYNASCIENCES CORPORATION. Dec.9, 1964 [Jan. 6, 1964, No.50081/64. Heading G3R. The electrostatic charge on an aircraft is kept at a safe value by an automatically controlled discharging system. As shown, a sensor A detects the polarity and potential of the electrostatic charge and transmits an amplified signal to a compensator C in which the signal is modified to take into account the dynamic characteristics of the system. Depending on the polarity of the signal, the output from compensator C is applied over a gain control unit C1 or C2 to the appropriate high voltage generator unit G1 or G2, each of which includes an amplifier F1 or F2, and a high voltage multiplier network. The high voltage output is applied to corona probes E which deliver an ionised current flow out of the aircraft sufficient to neutralize the charging current imposed thereon. The Specification includes a theoretical discussion on the aspects of the closed loop control system, and describes suitable arrangements for the various parts of the system with reference to Figs.2 to 10 (not shown).
Patent GB-1182441-A (GB)
Title: Production of Indole Derivatives
Inventor: CHRISTENSEN SVEND AGE
IPC: C07D/
Filed: 1966-11-10
Abstract: 1,182,441. Indole acetic acids. MERCK & CO. Inc. 24 Jan., 1968 [10 Nov., 1966], No. 50483/66. Heading C2C. Indole derivatives of formula in which R<SP>1</SP> represent a hydrogen or halogen atom, an alkoxy group of not more than 4 carbon atoms, or a nitro group, R<SP>2</SP> represents a hydrogen atom or an alkyl group of 1-4 carbon atoms, and R<SP>3</SP> represents a hydrogen or halogen atom or a nitro group, are prepared by subjecting the corresponding triphenylmethyl esters, diphenylmethyl esters, 4,4<SP>1</SP>,4<SP>11</SP>-trimethoxy - triphenylmethyl esters, or 4,4<SP>1 </SP>- dimethoxy - diphenylmethyl esters to hydrolysis, or alcoholysis using an aqueous alcohol to produce the desired product.
Patent GB-1022479-A (GB)
Title: Improvements relating to releasable friction clutches for self-propelled vehicles
IPC: F16D21/06
Filed: 1963-12-23
Abstract: 1,022,479. Friction clutches; slip couplings. J. WALTERSCHEID, and B. WALTERSCHEID-MULLER. Dec. 23, 1963 [Dec. 29, 1962], No. 50774/63. Heading F2C. In a double friction clutch, for connecting a driving (or driven) case 6 selectively to two concentric output (or input) shafts 3A, 4A on a motor-vehicle, comprising a pair of driven (or driving) discs 1, 2 connected to the respective output shafts 3A, 4A, and clamped to support rings 5, 12, fast with the case 6, by presserplates 7, 13, the friction clutch disc 1 is adapted to slip on overload and is engaged by a negative rated diaphragm spring 8 the deflection of which is increased if the maximum desired transmitted torque should tend to increase due, for example, to an increase in the coefficient of friction of the friction surfaces, so that the engaging pressure of the spring is reduced to maintain the limiting torque transmitted substantially constant, the increased spring deflection being effected by an expander comprising balls or rollers 11 which, with increasing torque, are cammed circumferentially in recesses of plates 9, 10, arranged between the diaphragm spring 8 and presserplate 7, to force the plates 9, 10 apart and deflect the spring 8, the pressure of which decreases to reduce the engaging pressure of the clutch 1 and thus maintain constant torque. The second clutch disc 2 is unaffected by the cammed expander 9, 10, 11 and is simply engaged direct by a diaphragm spring 14 arranged between the presser-plate 13 and a support plate 15 secured by bolts to the ring 12. The clutch discs 1, 2 are disengaged by throw-out levers 17, pivoted to the casing ring 12, which engage via rollers 20 (Fig. 3, not shown) plates 21 fast with the presser-plate 7 and additionally independently engage via push-rods 23 direct with the presserplate 13, a threaded adjuster 22 in the lever 17 permitting selective or simultaneous engaging of the clutch discs 1, 2.
Patent GB-1366077-A (GB)
Title: Current transformer assemblies
IPC: H01F38/30
Filed: 1971-10-26
Abstract: 1366077 Clamps BECKETT & PARKER Ltd 26 Oct 1971 [29 Oct 1970] 51425/70 Heading E2B [Also in Division H1] A current transformer 1 comprising an electrical coil component has a bore 10 through which extends axially a rigid, elongate, electrically-conductive, carrier bus-bar 2 encircled by a radially expandible sleeve or bush 3 which is fitted within the bore and which is associated with expander means operative to expand the sleeve or bush radially inwards and radially outwards so as to be forced into gripping engagement to both with the bus-bar and the coil component thereby to firmly mount and hold the coil component upon the bus-bar. As shown in Fig. 2, washers 5, 6 clampingly engage the end faces of the resiliently deformable bush 3, and, in Fig. 4, elements 26 of substantially frusto-conical form engaged in recesses of the sleeve or bush are drawn together by nuts and bolts 24, 28. The bush may be moulded in situ in the bore of the coil component, and the bus-bar may be rectangular in cross-section or comprise a plurality of separate rods grouped around an axis in parallel relationship. In modifications, there may be only a single clamping bolt and clamping washer or clamping elements or tapering expander elements applied to the ends of the bush may be drawn together by a clamping structure disposed outside the periphery of the coil component.
Patent GB-1490355-A (GB)
Title: Transportation of slag
IPC: C21C5/56
Filed: 1974-11-28
Abstract: 1490355 Transforming molten slag ACIERIES REUNIES DE BURBACH-EICH-DUDELANGESA 28 Nov 1974 [30 Nov 1973] 51675/74 Heading F4B Transfer elements for the transport of slag or slag-metal emulsion between the vessels of a metal refining installation are cooled so that the walls of the transfer elements are protected by a layer of solidified slug. The transfer elements may be graphite tubes, cooled by water jackets or water sprays, and are connected between two otherwise independent vessels, the downstream end of the tube passing into a vessel and being sealed to its wall. The downstream end of the tube is preferably below its upstream end which is sealed to a vessel wall.
Patent GB-1478627-A (GB)
Title: Digital meters
IPC: H03M1/00
Filed: 1974-12-03
Abstract: 1478627 Displays and code conversions COMMUNICATIONS PATENTS Ltd 28 Nov 1975 [3 Dec 1974] 52174/74 Heading G4H [Also in Division H3] In a digital meter a plurality of central circuits each comprising a switch, e.g. transistors 5, 7, 9, are connected in series to a current source 13 and in parallel to an input analogue and, via respective display means 1, 2, 3 to a received current source 15. A 3 stage meter gives 5 output patterns with ¢ illumination of adjacent LED's 1, 2, 3 when two are lit together. In further embodiments, in addition to the 'moving dot' display, the activation of the first display means switches transistors 27 to drive a 1¢ digit display 35, 30. The sensitivity of the device may be altered by charging the valves of resistors between stages and the brightness of the LED's controlled by means of a phototransistor and actuable vibrator altering the mark/space ratio of a transistor switch in the path from the current sources.
Patent GB-1109120-A (GB)
Title: Wire straightener
Inventor: KAESTNER THANKMAR WALTER
IPC: B21F1/02
Filed: 1966-07-07
Abstract: 1,109,120. Straightening wire. A. H. NILSON MACHINE CO. 7 July, 1966, No. 52287/67. Divided out of 1,109,119. Heading B3E. The subject matter of this Specification is substantially the same as that described in Specification 1,109,119, but the claims are concerned with the drive of the straightener.
Patent GB-1412617-A (GB)
Title: Substituted aryl and aralkyl amides
IPC: C07C233/25
Filed: 1972-11-14
Abstract: 1412617 Substituted aryl and aralkyl amides SCHERICO Ltd 14 Nov 1972 [15 Nov 1971] 52540/72 Heading C2C Novel compounds (I): wherein R is a univalent radical derived from an acyclic aliphatic hydrocarbon having 2 to 19 carbon atoms or a univalent radical derived from a cyclic hydrocarbon and, when R is a univalent radical derived from an acyclic aliphatic hydrocarbon having 2 to 19 carbon atoms (a) n is zero or one and X and Y are hydroxy; or (b) n is two and X and Y are independently hydrogen, fluoro, trifluoromethyl or hydroxy, with the proviso that at least one of X and Y is other than hydrogen and, when X is hydrogen, Y is other than hydroxy; and when R is a univalent radical derived from a cyclic hydrocarbon (a) n is zero and X and Y are hydroxy; or (b) n is one or two and X and Y are independently hydrogen, fluoro, trifluoromethyl or hydroxy, with the proviso that, when n is one, at least one of X and Y is other than hydrogen, or (c) provided R is adamantyl, n is zero, one or two and X and Y are independently hydrogen, fluoro, trifluoromethyl or hydroxy, with the proviso that when n is zero, at least one of X and Y is other than hydrogen, are made by standard methods. Pharmaceutical preparations acting on the CNS and particularly suitable for alleviating Parkinsonism contain (I) as active ingredient.
Patent GB-1494950-A (GB)
Title: Refractory material for the linings of pusher ovens
IPC: F27D1/00
Filed: 1975-12-24
Abstract: 1494950 Composition SOC EUROPEENNE DES PRODUITS REFRACTAIRES24 Dec 1975 [26 Dec 1974] 52898/75 Heading C1M A lining part for a pusher oven, for reheating steel slabs or billets, comprises at least one alkali metal oxide 0À3-1À5% with optional additions of up to 5% in total of CaO, Fe 2 O 3 , MgO and/or TiO 2  and has a weight ratio SiO 2 /Na 2 O (or molar equivalent of other alkali metal oxide) of not more than 16. The composition has a crystallographic composition, by weight, of and the weight of the zirconia phase plus 2À5 times the weight of the vitreous phase is in the range 33-57À5%.
Patent GB-1371050-A (GB)
Title: Convergence arrangements for multiple beam cathode ray tubes
IPC: H04N9/28
Filed: 1971-11-15
Abstract: 1371050 Cathode-ray tube circuits LICENTIA PATENT-VERWALTUNGS GmbH 15 Nov 1971 [14 Nov 1970] 52906/71 Heading H4T In a colour television system employing a multi-beam cathode-ray display tube dynamic convergence of one of the beams (in particular, of the blue beam) is effected by supplying adjustable amounts of the positive portions of oppositely poled line frequency sawtooth waves 14, 15 (symmetrical about the zero axis) to one end of the convergence coil 1 or to respective different ends whilst static convergence is effected by controlling the DC current in coil 1 by means of potentiometers 7 and 36. Operation of potentiometers 8 and 9 determines the level of the positive portions of waveforms 14, 15 and the end or ends of the coil to which they are supplied via transistors 4, 5 which operate as class B amplifiers. When 8 and 9 are adjusted such that only one of the transistors receives base voltage sawtooth portions via diodes 16 and 17 (transistor 4) or via diodes 18 and 19 (transistor 5) the convergence current produced in the coil has a parabolic characteristic, whilst when each transistor receives base voltage sawtooth portions the convergence current has a sawtooth characteristic. When potentiometers 8 and 9 have been adjusted to produce the desired dynamic correction such adjustment is not influenced by adjustment for static correction since the effect of the variation in transistor base voltage which the static correction requires on the bias on the cathodes of diodes 16-19 is offset by producing a similar bias on the anodes of the diodes via resistors 32, 33 and 34, 35. Trapezoidal errors may be corrected by modulating the sawtooth waveforms at the vertical deflection frequency.
Patent GB-1420637-A (GB)
Title: Alkoxycarbonyl substituted 3-anilino-2-pyrazol-5-ones and their use as magenta couplers in silver halide photographic emulsions
IPC: C07D231/52
Filed: 1973-11-15
Abstract: 1420637 Alkoxycarbonyl substituted 3- anilino-2-pyrazol-5-ones FUJI PHOTO FILM CO Ltd 15 Nov 1973 [15 Nov 1972] 53161/73 Heading C2C [Also in Divisions C4 and G2] The invention relates to alkoxycarbonyl substituted 3-anilino-2-pyrazol-5-ones, wherein the anilino group is substituted in at least one of the ortho-positions thereof by a halogen atom, or an alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, amino, amido, hydroxyl, cyano or nitro group and in at least one of the meta- and para-positions by an alkoxycarbonyl group. The compounds preferably have the general formula wherein R is a heterocyclic group or an optionally substituted aryl group; R<SP>1</SP> is a cycloalkyl group or an optionally substituted alkyl group; X and Y each represent an alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, amino, amido, halogen, hydroxyl, cyano or nitro group and Y may also be hydrogen; Z is a hydrogen atom or a residue which can be removed by coupling it with the oxidation product of a silver halide developing agent. The compounds of the invention may be used as non-diffusing magenta couplers in silver halide photographic emulsions.
Patent GB-1404625-A (GB)
Title: Screen
IPC: B07B1/46
Filed: 1972-11-20
Abstract: 1404625 Vibratory screening apparatus HOYT WIRE CLOTH CO 20 Nov 1972 53459/72 Heading B2H [Also in Division D1] A vibrating screening apparatus comprises three superposed inclined wire mesh screens 16, 17, 18 mounted in a suspended framework 12. Each screen comprises interlaced warp and weft wires, the wire cross-section having arcuate top and bottom surfaces and flat side surfaces which define the mesh openings. The weft wires may be thicker than the warp wires.