baber/WOPTO huggingface dataset:
Patent GB-1426509-A (GB)
Title: Field-emission electron guns
IPC: H01J3/02
Filed: 1973-06-04
Abstract: 1426509 Electron guns HITACHI Ltd 4 June 1973 [9 June 1972] 26496/73 Heading H1D A field emission electron gun with a filament heater 2 which maintains the cathode at a constant temperature between 100 and 500 C. to stabilize the emitted electron current. The gun is used in scanning electron microscopes and is maintained at the high temperature when not in use.
Patent GB-807241-A (GB)
Title: Anthraquinone dyestuffs
Inventor: GEHRKE GUNTER
IPC: C09B1/36
Filed: 1956-08-30
Abstract: Textile materials of polyacrylonitrile or copolymers thereof with a minor proportion of e.g. alkyl acrylate or vinyl acetate are dyed or printed with an anthraquinone dyestuff which contains, besides any other groups which may be present, an alkamino group of the formula <FORM:0807241/IV (c)/1> where X is a bivalent aliphatic radical of up to six carbon atoms, R1 is hydrogen or alkyl, R2 and R3 are alkyl or together form a heterocyclic ring with the tertiary nitrogen atom, or with an alkyl ammonium salt of said dyestuff.  The dyes are made by reacting anthraquinone derivatives (including condensed systems such as benzanthrone, acridone, anthrapyridone or anthrapyrimidine) which contain substituents such as halogen, nitro, hydroxy, alkoxy or arylhydroxy, with amines of the formula <FORM:0807241/IV (c)/2> The anthraquinone molecule may contain other substituents such as amino, alkylamino, hydroxyalkylamino, acylamino, alkyl, hydroxy, alkoxy, mercapto, carboxamide or cyano.  In examples: (1) 1-methylamino-4-bromo-anthraquinone is reacted with 1-dimethylamino-3-aminopropane, 1 - dimethylamino - 2 - aminoethane, 1 - diethylamino - 3 - aminopropane, 1-diethylamino - 4 - amino - n - pentane or N-(b -aminoethyl) piperidine and the products obtained or their quaternary ammonium salts obtained by reacting with dimethyl sulphate, diethyl sulphate, methyl toluene sulphonate or benzyl chloride, are used to dye polyacrylonitrile fibres; (2) 1-methylamino-5-chloroanthraquinone is reacted with 1-dimethylamino-3-aminopropane, and the product obtained or its salt with dimethyl sulphate is used to dye or print polyacrylonitrile fibres.  Other anthraquinone starting materials listed are 1-nitroanthraquinone, 1 - amino - 4 - methoxyanthraquinone, 1 - b  - hydroxyethylamino - 4 - bromoanthraquinone, 1 - hexahydroanilino - 4 - bromoanthraquinone, 1 - p - methylanilino - 4 - methoxy - anthraquinone, 1 - benzoylamino - 4-chloroanthraquinone, 1 - acetylamino - 4 - methoxyanthraquinone, 1 - amino - 5 - chloranthraquinone, 1 - methylamino - 5 - nitro - anthraquinone, 1 - b  - hydroxyethylamino - 5 - chloroanthraquinone, 1 - ethylamino - 8 - chloroanthraquinone, 1.4 - diamino - 5 - nitro - anthraquinone, 1 - amino - 4 - hydroxy - 5 - chloroanthraquinone.  Dyeing may be effected in an acid, alkaline or neutral bath at temperatures up to or above 100 DEG  C.  Example (7) describes the printing of a polyacrylonitrile material, the thickened paste containing in addition to the dyestuff, thiodiglycol, cyclohexanol, acetic acid, zinc nitrite, turkey red oil and petrol.  Specification 459,594, [Group IV], is referred to.
Patent GB-1109352-A (GB)
Title: A key-operated control device
IPC: H01H13/72
Filed: 1965-06-23
Abstract: 1,109,352. Electronic timing circuits. OLYMPIA WERKE A.G. 23 June, 1965 [24 June, 1964], No. 26577/65. Heading H3P. [Also in Divisions B6 and H1] A time pulse generator 23, in a typewriter (see Division B6) is energized by the actuation of a key bail restoring switch 7, which is closed indirectly by the depression of a key and the closing of the switch 7 produces a trigger pulse A, which is applied to a first monostable flipflop 51. A delayed output pulse B from the monostable flip-flop 51 is applied to a differentiating circuit 52 and amplifier 53 the latter producing an output signal C, which is applied to a second monostable flip-flop 54 generating a delayed output signal D, which on the one hand produces an operating pulse G for the type member selecting devices 59n . . . 59 1  and, on the other hand, feeds a differentiating circuit 61 and amplifier 62 to produce a restoring pulse H, through a third monostable flip-flop 63. The restoring pulse energizes an electromagnet 6, which operates mechanical members to restore the previously depressed key 7.
Patent GB-1309995-A (GB)
Title: Stabilizing compositions comprising dialkylphenothiazines and phenolic antioxidants
IPC: C09K15/30
Filed: 1971-04-19
Abstract: 1309995 Stabilizing compositions CIBAGEIGY AG 19 April 1971 [13 April 1970] 26653/71 Heading C2C and C2P [Also in Divisions C3 and C5] The invention comprises a stabilizing composition comprising at least one dialkylphenothiazine or di-cycloalkylphenothiazine compound and at least one phenolic antioxidant. Specified phenolic antioxidants include mono- and di-hydric alkyl phenols, alkylene-bis-(alkylphenols), thiobis - (alkylphenols), alkyl esters of (alkyl-hydroxybenzyl) malonic acids, alkylesters of (alkyl - hydroxybenzyl - thio - alkanoic acids, tris- and tetrakis-(alkyl-hydroxyphenyl)alkanes, di- and tri-(alkyl-hydroxybenzyl)-alkylbenzenes, phenols containing a 1,3,5 - triazine nucleus linked to a phenolic residue via thio, amino or ether linkages; alkyl or alkylthioalkyl esters of alkyl-hydroxyphenylalkanoic acids and of alkyl-hydroxybenzoic acids; esters of alkylhydroxyphenylalkanoic acids and of alkyl-hydroxybenzoic acids with diols and polyols; and phosphonates containing phenolic residues. These compositions are useful for stabilizing polyolefins.
Patent GB-1091237-A (GB)
Title: Resiliently mounted wheel balancing weights
Inventor: SKIDMORE FRANK OREN
IPC: F16F15/32
Filed: 1966-06-15
Abstract: 1,091,237. Balancing vehicle wheels. THREE G CORPORATION. June 15, 1966, No. 26680/66. Heading B7C. A resilient layer is adhesively secured between a wheel-balancing lead strip according to Specification 1,047,880 and its associated rim so as to reduce shocks caused by wheel vibration and to take up irregularities in the rim surface. The layer is preferably formed of a closed-cell water-repellent foam material.
Patent GB-482717-A (GB)
Title: Improvements in radio direction finders
IPC: G01S3/14
Filed: 1936-10-01
Abstract: 482,717. Directive wireless signalling. HEFELE, E. J. Oct. 1, 1936, No. 26681, Convention date, Oct. 2, 1935. [Classes 39 (i) and 40 (v)] In a direction finder a directional antenna and a non-directional antenna are used for independently receiving the signals which are amplified and imposed upon the deflecting means of a cathode-ray tube. Fig. 5 shows a form of the invention employing superheterodyne reception. The balanced loop antenna 10 and the vertical antenna 11 are respectively connected to radio-frequency amplifiers 13<1>, 20<1>, both coupled to a common local oscillator 32. Condensers are provided for tuning the loop antenna and for bringing the signals applied to the two amplifiers to the same phase. The outputs from 13<1>, 20<1> are passed through intermediate frequency amplifiers 33, 34, and the two output voltages e<1>V, e<1>L are applied to the vertical and horizontal deflecting plates of the cathode-ray tube 17. If the input voltages are in phase, or 180‹ out of phase, the voltages e<1>V and e<1>L will be in corresponding phase and the trace on the cathode-ray tube will be a straight line, the inclination depending upon the relative values of the two inputs and their phase relationship. Movement of the directional aerial may thus be arranged to give a right or left indication. A reversing switch may be placed in the loop antenna connections to give a 180‹ phase-change so as to indicate correctly when the receiver is approaching or leaving the transmitter. If the gain of both amplifiers is controlled by A.V.C. potentials derived from the non-directional receiver, the indicator may be calibrated to read actual degrees " off course '' by means of a manual gain control in the loop amplifier. A reception unit 30 may be used for listening to signals. This comprises an anode-bend detector loosely coupled to the output of the non-directional amplifier, Fig. 7 (not shown), followed by an audio-frequency amplifier. A series resonant circuit is provided to exclude the I.F. frequency from the L.F. circuits. Fig. 10 shows a cathode-ray tube which is bent to economize space, the beam being deflected round the bend by plates 95 connected to the accelerating anode. To reduce electrostatic coupling, screens may be placed between the deflecting plates and between the deflecting plates and anode of the tube, Fig. 9 (not shown). A construction of stream-lined aerial is described, Fig. 6 (not shown). A cursor may be affixed to the screen of the cathode-ray tube, Fig. 4 (not shown), to facilitate flying along a predetermined course.
Patent GB-1006440-A (GB)
Title: Improvements in or relating to vacuum smelting furances
IPC: C22B9/04
Filed: 1962-07-11
Abstract: 1,006,440. Vacuum melting furnaces. W. C. HERAEUS G.m.b.H. July 11, 1962 [July 11, 1961], No. 26681/62. Heading F4B. A vacuum melting furnace 3 heated by an induction coil 1 has thereabove a pressureequalizing chamber 10 with a valve 11 disposed below a turntable arrangement 12 by which chambers 13 and 14 carrying auxiliary equipment 14, 15 may be located at will in pressuretight engagement with the chamber 10 so that the equipment may enter the furnace. Vacuum pumps 5 and 18 respectively evacuate the furnace 3 and the compartment 10 and the furnace may be a beam furnace. The auxiliary equipment 14, 15 may include a charging device, a sampling device, a poker or an immersion temperature measurer.
Patent GB-1012803-A (GB)
Title: Improvements in or relating to aircraft undercarriages
Inventor: PEGLER AUBREY JOHN RUSSELL
IPC: B64C25/52
Filed: 1963-07-05
Abstract: 1,012,803. Aircraft undercarriages; aircushion vehicles. MINISTER OF AVIATION. Sept. 3, 1964 [July 5, 1963], No. 26701/63. Headings B7G and B7K. A helicopter undercarriage comprises a suction pad at the extremity of each leg for suction attachment with the landing surface and for bearing the landing loads and a rotatable load carrying ball or roller associated with the leg and positioned or so movable that the helicopter may be supported by the ball or roller for movement on the landing surface on release of the suction. An undercarriage leg 22 carries a ball-and-socket connection 21 for an oval housing 10 which has. a recessed base 26 and a peripheral sealing member 13 so that suction applied at a conduit 25 will cause the housing 10, resting on landing surface 17, to act as a suction cup. Alternatively, compressed air may be supplied through conduit 25 to form an air cushion beneath the housing to assist lift-off of the helicopter. A plurality of balls or rollers 27 are mounted for rotation in anti-friction surfaces 28 carried by a piston 29 formed with a hollow crown 33 for the admission of pressure liquid through a conduit 32. When suction has been released, pressure liquid is delivered to external pistons 29 so that the balls or rollers extend below the base to enable the helicopter to be manoeuvred on the landing surface. In an alternative embodiment a single ball or roller is mounted coaxially with the leg in the centre of a circular housing mounted on a part-spherical joint and provided with a plurality of centralizing springs. Reference has been directed by the Comptroller to Specification 915,875.
Patent GB-532925-A (GB)
Title: Piezoelectric elements
IPC: H03H9/17
Filed: 1939-09-27
Abstract: 532,925. Piezo-electric crystals. STANDARD TELEPHONES & CABLES, Ltd. Sept.27, 1939, No. 26711. Convention date, Oct. 19, 1938. [Class 40 (v)] A piezo-electric plate having single frequency properties in a shear mode of vibration is cut from a crystal of Rochelle salt or an isomorphous compound in such manner that the principal plane of the plate is parallel to one axis of the crystal and divides, or preferably bisects, the angle between the other two axes. In the Figure the cut is taken in a plane parallel to the X axis and bisects the angle between the Y and Z axes. Cuts taken parallel to the other axes are also described.
Patent GB-265510-A (GB)
Title: Improvements in and relating to boxes for safety razors
IPC: B65D83/10
Filed: 1926-10-28
Abstract: 265,510. Watt, J. A. D. Oct. 28, 1926. Contents, facilitating access to; joints between box bottoms and bodies.- A box 6 for safety razors is provided with a notch 10 in one or more of the side walls and the lid 7 carries a fillet piece 11 to correspond with each notch so that the box is completely closed when the lid is down. The fillet piece may be formed to fill, or stepped to overlap, the edge of the notch. The box may be formed in one piece from stamped sheet metal or the base may be formed separately and attached thereto.
Patent GB-1020442-A (GB)
Title: Improvements in or relating to the extrusion of tubes
Inventor: BENNETT ARTHUR
IPC: B29C48/09
Filed: 1961-07-26
Abstract: 1,020,442. Extruding tubes. ENGLISH ELECTRIC CO. Ltd. July 20, 1962 [July 26, 1961], No. 27022/61. Heading B5A. In a method of extruding ceramic tubes the ceramic material is extruded through a nozzle 15 of the tapered mouthpiece 11 of an extrusion cylinder 10 and simultaneously a tapered pin 13 is fed through the nozzle 15 so that the extruded tube has a tapered bore over at least part of its length. The tapered pin 13 is supported by an operating shaft 14 which passes through the centre of the shaft of the extruder screw 12; the movement of the pin 13 regulates the taper of the extruded tube. The taper of the pin 13 is arranged to be the same as that of the mouthpiece 11. Also the pin 13 is arranged to be moved either inwardly or outwardly through the mouthpiece 11.
Patent GB-1576665-A (GB)
Title: Backings for tufted carpets
IPC: D06M17/00
Filed: 1977-06-29
Abstract: A fabric of thermoplastic yarns, which is capable of being lined with loop pile (terry pile), is superposed with a ply of thermoplastic fibres, and the combination is passed into a heated calender, without needling. The fibres of the ply become bonded to the fabric and to each other. The backing thus obtained is particularly suitable for manufacturing fine-gauge loop-pile (terry-pile) carpets. <IMAGE>
Patent GB-173577-A (GB)
Title: Improvements in and relating to means for erecting or constructing concrete or ferro-concrete structures and the like
IPC: E04G11/28
Filed: 1920-09-24
Abstract: 173,577. Norman, S. H. Sept. 24, 1920. Casting and moulding in situ.-In shuttering of the type in which slotted or perforated uprights are used, the shutters 12 are supported and positioned laterally by two series of removable transverse members 14, 14a, one series passing through holes or slots 13 near the upper edges, and the other series being located adjacent to the lower edges. The transverse members are preferably united in pairs to form " hair-pin " or U-shaped supports, and the shutters are secured against lateral displacement by " hair-pin " ties 17, 17<c> which engage holes in the transverse members. The vertical edges of the shutters may be rabbeted at the lower ends to facilitate the insertion of reinforcing-members or wall ties; the core shutters are recessed to fit wall ties. The spaces between the edges of the shutters forming the inner wall may be bridged by rectangular plates; the grooves left in the face of the wall after removal of the standards may be trimmed or bevelled.
Patent GB-1006174-A (GB)
Title: Method of producing an insulative coating on semiconductor chips
IPC: H01L21/304
Filed: 1964-07-02
Abstract: 1,006,174. Coating semi-conductor chips. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 2, 1964 [July 3, 1963], No. 27309/64. Heading H1K. An insulating coating is produced on a semiconductor chip made from a semi-conductor blank by joining one side of the blank to a larger supporting surface so that a selected surface is masked, applying a masking overlay to the opposite side of the blank, dividing the blank into a plurality of separate masked chips each joined to the supporting surface and applying the insulating coating solely to the unmasked surfaces of the chips along the dividing line between the chips. In a specific embodiment, Fig. 4, an uncut semi-conductor blank is joined to a stainless steel or platinum cathode 36 by a silver epoxy adhesive 34, thus ensuring good electrical contact therewith. Next the upper surface of the blank is coated with a masking material 38, e.g. black wax. An ultrasonic cutter using an oil base abrasive grit is used to divide the blank into a plurality of chips. After washing, the chip-bearing cathode 36 is immersed in an electrophoretic bath 32, e.g. of finely divided glass dispersed in ethyl acetate or A1 or Mg oxide dispersed in water or methanol. A D.C. voltage is applied between cathode 36 and electrode 44 and an insulating coating is built up on the exposed surfaces. After removal of the chips 39 and cathode 36 from the bath, the masking material 38 is removed and then the adhesive 34. The glass coating may be hardened by firing it in air. The Specification discloses the modification of the coated chips by doping the lower surface thereof with material to give an oppossite conductivity type. This semi-conductor junction device is then soldered on to a printed circuit.
Patent GB-247643-A (GB)
Title: Improvements in stereotype plate casting boxes
IPC: B41D3/08
Filed: 1924-11-17
Abstract: 247,643. Hart, H., (Duplex Printing Press Co.). Nov. 17, 1924. Stereotype, casting. In a stereotype casting- box for casting tubular plates, of the type having a drag 3, a cope 2, and a core 1, the upper portion 1<b> of the core beyond the plate-forming portion is reduced in diameter. The two parts of the core are connected by a bevelled portion 1<a> the lower edge of which is slightly below the level of shoulders 2a, 3<a> in the cope and drag respectively. The shoulders 2a, 3a are approximately of the thickness of a matrix 4 in depth, and are formed just above the position occupied by the upper edge of the matrix. Metal entering the mould is therefore directed outwardly by the bevelled part 1<a> in order to press the matrix against the drag and cope during the casting- operation, and is prevented by the shoulders 2<a>, 3a from entering behind the matrix. The cope 2 is provided with a vertical rib 2<b>, between which and an inwardly-projecting flange 3<b> on the drag 3 the core is clamped during casting in order to retain it in true axial position. The rib 2<b> also serves to form a slot in the sprue to facilitate removal of the plate from the core. The upper part of the core is bevelled at 1<c> to facilitate pouring the metal into the, mould, and a semi-circular flange 2<c> is formed at the upper end of the cope 2 to act as a shield to direct the metal into the mould. The vertical edges of the matrix are separated by a rib 6 projecting from the inner face of the drag and extending nearly to the flange 3<b>. Flat springs 7 secured to a rib 3<e> on the drag project through an opening therein and engage the edges of the matrix to press the edges apart and cause the matrix to fit closely against the inner walls of the drag and cope. The edges of the matrix are clamped by a bar 5 secured to the core and provided with a groove to receive the rib 6 and recesses to accommodate the ends of the spring 7. Specification 8983/09 is referred to.
Patent GB-1394623-A (GB)
Title: Electrical connectors
IPC: H01R24/76
Filed: 1973-06-08
Abstract: 1394623 Connectors S.A.R.L. TECHNILEC 8 June 1973 [13 June 1972] 27444/73 Heading E2A [Also in Division H2] A device bearing electrical connectors 26, 27 has a base 1 with a pair of hooks 2b at one end and a toggle link arrangement at the other end, the toggle link arrangement also carrying a pair of hooks 21b, the arrangement being such that with the first mentioned hooks 2b engaging within respective anchorages 32 and the second mentioned hooks also engaging with respective anchorages 32 the toggle link arrangement is actuated so that the base 1 is urged towards the member 31 in which the anchorages are situated. The toggle link arrangement comprises a cover 8 acting as a lever pivotally mounted on the base and a yoke 16 carrying the hooks 21b pivotally mounted on the cover 8. The pivot 7 for the cover 8 extends at each of its ends into a respective slot in the yoke 16 to limit the angular relative movement between the cover 8 and yoke 16. The base I and cover are provided with interengaging parts for keeping the cover 8 in its base covering position (Fig. 3c, not shown). A spring 15 is interposed between the cover 8 and the yoke 16. The base is provided with sockets for reception of a plug and an earthing pin connected to the hooks 2b (Fig. 2, not shown). The cover 8 has a collar for reception of the aforementioned plug. A tool is required for disengaging the interengaging parts of the base 1 and cover 8. Alternatively the cover may be generally round such that pressure at opposite sides thereof extends the cover along an axis transverse to the pressure so disengaging the interengaging parts.
Patent GB-158962-A (GB)
Title: Improvements in or relating to electric trackless tramway cars
IPC: B60K1/00
Filed: 1919-11-07
Abstract: 158,962. Bishop, G. A., and Chadwick, R. A. Nov. 7, 1919. Motor fore-carriages for road vehicles; motors and gear-boxes, supporting.-A fore-carriage for an electrically-driven road-vehicle comprises a ring p<2> rotatable on ball-bearings q within a ring p secured to the chassis, a pair of laminated springs 2 secured at their centres to the front portion of the rotable ring, and by links 3, at their ends, to torque bars 5, and a bracket 12 carried by the bars 5 and through which passes a torque pillar 13 connected to the ring p<2> and carrying compensating springs 16, 17. The torque-bars are carried on bearings formed on the gear-casing 8 supported by the front axle. Steering is effected by a rod 6, through a worm w meshing with a worm-wheel x on the rotatable ring. Two electric motors are carried on the front axle, only one n being shown, by brackets 21 and on the cross members 9, 9' by brackets 23 and compensating- springs 26, 28. Each front road-wheel is driven from its corresponding motor through reduction gearing comprising gear-wheels 30, 32, and 34 which latter meshes with an internal spur-wheel 35, on the road-wheel.
Patent GB-954313-A (GB)
Title: Improvements in electrical generators of quasi-random symbols
IPC: G06F1/03
Filed: 1961-07-28
Abstract: 954,313. Generating quasi-random symbols. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. July 28,1961 [Aug. 2, 1960], No. 27555/61. Drawings to Specification. Heading G4D. Apparatus for generating quasi-random symbols comprises a clock generator which feeds pulses to a number of binary counters each having a different predetermined maximum count and having outputs connected to a decoding permutation and encoding unit the outputs of which are connected through a series of AND-circuits and OR-circuits with bistable multivibrators at the outputs of which the final symbols are collected. The decoders may be diode matrices with n inputs and 2<SP>n</SP> outputs, the permutators have arbitrarily interconnected inputs and outputs and the encoders operate in the opposite manner to that of the decoders. The apparatus may provide a key for cryptographic devices.