baber/WOPTO huggingface dataset:
Patent GB-1090715-A (GB)
Title: Method of manufacturing silicon transistors
IPC: H01L21/308
Filed: 1964-12-14
Abstract: 1,090,715. Transistors. FUJITSU Ltd. Dec. 14, 1964 [Dec. 14, 1963], No. 50916/64. Heading H1K. A silicon transistor is manufactured by forming base 2 and emitter 4 layers by successive diffusion into a masked silicon wafer 1, removing those parts of the resulting oxide layer 3 where emitter and base electrodes are to be provided, the periphery and where mesa etching is required, evaporating wax 5 over the remaining oxide 3 and then etching the exposed base zone to form the mesa. Removal of the oxide in this way so that the wax extends to the silicon prevents etching of the remaining oxide during mesa etching, which would undercut the wax. Phosphorus is specified as suitable impurity for diffusion.
Patent GB-1098463-A (GB)
Title: Device for detachably securing a wearing piece to the heel of a shoe
IPC: A43B21/47
Filed: 1964-12-15
Abstract: 1,098,463. Top lifts. E. F. J. SCHUURMAN. Dec. 15, 1964 [Dec. 23, 1963], No. 50947/64. Heading A3B. A heel tread 6 attached to a pin 4 is fastened to a heel 1 by inserting the pin in a sleeve 2 secured in the heel and locking it therein by means of a resilient wire 11 engaging a recess 7 in the pin, a portion of the wire being movable through a slot 12 in the sleeve upon insertion or withdrawal of the pin, and the wire being held captive by means of a cover extending around the shoe. As shown in Fig. 1 the straight wire 11 bears against the wall of the cover member and the cover is closed by a plate 13 having a portion which is thinned so as to form the slot 12. In another embodiment the head of the sleeve is thickened and provided with a shallow groove merging into a slot which corresponds to slot 12. The locking wire is D-shaped with the curved portion engaged in the shallow groove and the straight portion in a position similar to that of wire 11. A cover surrounds the head of the sleeve.
Patent GB-509891-A (GB)
Abstract: 509,891. Amino-alkoxy-1; 4-benzoquinones. GROVES, W. W. (I.G. Farbenindustrie Akt.- Ges.). Jan. 20, 1938, No. 1911. [Class 2 (iii)] Amino-alkoxy-1,4-benzoquinones and their derivatives are made by condensing one mol of an alkoxy-halogen-1,4,-benzoquinone of the general formula :- wherein one X represents hydrogen, halogen or methyl, and the other hydrogen or halogen (obtained by the process of Specification 509,890) with one mol of ammonia or a primary amine either in the absence of an acid binding agent or in the presence of acid binding agent in quantity not exceeding the equivalent of the quinone used. Suitable acid binding agents are an organic base or a salt of acetic or carbonic acid or the amine used in the reaction ; one mol of quinone reacting with 2 mols of the amine. Preferably an inert solvent or diluent is present and the temperature does not exceed 60‹C. The products may be sulphonated. The starting materials may be used as their alcoholic solutions as obtained by the process of Specification 509,890. The products are intermediates for dyestuffs (cf. Specifications 509,893 and 509,898) In examples the following compounds are prepared :-(1) 5-amino-2-methoxy-3, 6-dichloro- 1, 4-benzoquinone, or similar bodies by using methylamine or ethylamine in place of ammonia. (2) 5-(para-diphenylamino)-2- methoxy-3,6-dichloro-1, 4-benzoquinone. (3) 5 (#-naphthylamino)-2-methoxy-3, 6-dichloro- 1. 4-benzoquinone. (4) Anilido-methoxychloro-toluquinone. (5) 5-anilido-2-ethoxy-3, 6-dibromo-1, 4-benzoquinone. (6) 5-(N-ethylcarbazolyl-3<1>-amino)-2-butoxy-3, 6-dichloro-1, 4-benzoquinone. (7). 5-(4<1>-sulpho-anilido)-2- methoxy-3, 6-dichloro-1, 4-benzoquinone. (8) 5-salicyl-amino-2-methoxy-dichloro-benzoquinone. This last product forms a sulphonic acid which dyes chrome mordanted fibres intense currant tints from a brown solution.
Patent GB-1172287-A (GB)
Title: Improvements in methods for Reducing Electrical Losses in and Bonding of Electrical Inductive Laminated Structures
IPC: H01F41/02
Filed: 1967-11-10
Abstract: 1,172,287. Making laminated magnetic cores. GENERAL ELECTRIC CO. 10 Nov., 1967 [13 Jan., 1967], No. 51159/67. Heading B3A. [Also in Divisions D1 and H2] Interlaminate bonds formed during the annealing of a laminated magnetic core are broken by contacting the core with a fluid and imparting a pressure wave to the fluid. The laminates may be of the form illustrated in Fig. 3. The pressure wave may be formed in the fluid itself (Fig. 2), or in a further fluid separated therefrom by a flexible diaphragm (Fig. 6, not shown), by an electric discharge. The fluid may also effect electric insulation. It may be a gas, water or dispersion of silica, glass or acrylic resin, the resin being subsequently hardened. The core may carry ground insulation and a plurality of coils during treatment with the resin.
Patent GB-1152614-A (GB)
Title: Pelletising Process
Inventor: HALSEY GORDON
IPC: C22B1/24
Filed: 1966-11-17
Abstract: 1,152,614. Pelleting minerals. MONSANTO CHEMICALS Ltd. 20 Oct., 1967 [17 Nov., 1966], No. 51480/66. Heading CIA. A finely divided mineral is pelleted by rolling in the presence of water using a silica sol. as binding agent. The sol. may be aqueous, alcoholic or aqueous-alcoholic, and may have a SiO 2  concentration of 10-60% by wt. and an ultimate particle size of 70-1500 A, preferably with at least 80% of the particles having a weight average diameter not exceeding 350 A. 5-15% water and 0À2-10% SiO 2 , by wt. of the mineral may be used (water usually being added as aqueous sol.). The mineral may be a magnetite concentrate or an ore of Ti, Cr, Mn, Ni, or Co. The pellets may be formed by spraying the sol. on to the tumbling mineral.
Patent GB-1484040-A (GB)
Title: Gas seal for liquid electrolyte fuel cells
IPC: H01M8/02
Filed: 1974-12-02
Abstract: 1484040 Fuel cells UNITED AIRCRAFT CORP 2 Dec 1974 [21 Dec 1973] 52051/74 Heading H1B A fuel cell comprises a pair of gas-porous electrodes 12, 14 the inner surfaces of which consist of a catalytic layer, an electrolytesaturated matrix 10 sandwiched between the electrodes and a pair of plates 16, 18 which define gas spaces 20, 22, the electrode 14 extending beyond the electrode 12 and the electrolyte forming a wet seal at the surface 40 between the matrix and the plate 16 to prevent gas leakage. The fuel cell may be of the hydrogen/oxygen type in which the matrix material is asbestos cloth impregnated with potassium hydroxide or a fibrous organic polymer mat impregnated with phosphoric acid. Platinum group metals may be used as the catalyst and the electrodes are made of nickel or carbon. A passageway 19 enables the supply of oxidant to the spaces 22 and the fuel is supplied to the spaces 20, the seal at the surface 40 preventing any leakage and therefore mixing of the reactant gases.
Patent GB-1411098-A (GB)
Title: Mechanical-hydraulic brake actuating device
IPC: B60T7/06
Filed: 1972-11-10
Abstract: 1411098 Brake actuating mechanisms H O SCHROTER 10 Nov 1972 [11 Nov 1971] 52094/72 Heading F2E A master cylinder piston 2 is displaced by a pedal lever 6 having a fixed fulcrum 11 acting through an intermediate member on a pistonrod 3 pivoted at its end remote from the piston to a crank arm 4 having a fixed fulcrum 8, such that the distance from the piston-rod crank arm pivot to the crank arm fulcrum is substantially equal to the maximum displacement of the piston, that, in a brake released position, a line connecting the points of application of the force by the lever and to the crank arm forms an included angle of 160 to 168 degrees with a line connecting the crank arm force application point with its fulcrum, this angle decreasing during brake application, and the piston-rod longitudinal axis forms an included angle of substantially 43 to 47 degrees with a line connecting its pivot on the crank arm with the crank arm fulcrum, this angle increasing to substantially 97 to 103 degrees during actuation. The crank arm 4 contains two parts, with a bifurcated end of the piston-rod 3 and a roller (not shown) or a link 5 inside the parts, all pivoted on a spindle. The roller engages a cam profile on the lever 6 not shown or the link 5 is pivoted at 9 in a bifurcated part of the lever 6.
Patent GB-1537249-A (GB)
Title: Water flushed toilet with cleaning device
IPC: A47K13/30
Filed: 1975-12-22
Abstract: 1537249 Cleaning water closet seats; power -hinged seat covers K AUE 22 Dec 1975 52404/75 Headings E1C and E2F A w.c. seat 102, Fig. 3, which may be integral with or movably mounted on a closet bowl (not shown) is provided with a liftable cover 101 sealing at 107, the cover containing (a) a central spray head 109 for washing the seat and upper bowl during flushing; (b) means such as a fan 104 supplying drying air to the seat; and (c) a water and air guide plate 106 which is spaced from the cover and whose outer edge overlies the seat. The cleaning water may have an additive to disinfect and/or reduce surface tension and the seat surface may be shaped to promote run-off. The spray head 109 comprises a rotary hollow cone corresponding to the cone 9 of Fig. 1, i.e. having two discharge slots 35, 36 and an impeller 34 in a tapering water supply chamber 37 Fig. 2 (not shown). In a modification, Fig. 4 (not shown), the conical spray head is replaced by a hollow perforated ring (113) rotatable in bearing (114) on the underside of the guide plate (106). In a further modification, Fig. 5, a w.c. bowl 217 having a seat 213 is flushed by closing a cover 204 to seal against a seat flange 215, whereupon (a) water is sprayed over bowl and seat from a rotary spray head 222 while blades 226 on rotary guide plate 212 fling water from distributor 224 on to and around seat 213, and subsequently (b) seat drying air is supplied by a fan 200 and heater 207. The fan may be driven (a) by a motor 203, (b) by a belt drive, or (c) by water pressure. Water drain passages such as 220, 228 are provided in the seat or bowl. Means such as the power hinge of Fig. 6 are provided for a user to lower the cover without touching it. Power hinge. Fig. 6 illustrates a closet having a seat 2 around part of a bowl 23 and having a power-hinged hollow cover 1 incorporating (a) a spray head 9 for washing the bowl, and (b) a supply of paper covers 7 for the seat, the hollow cover 1 being raised about hinge axis 25 by a torsion or other spring 14 and being lowered by supplying pressure liquid (water) to a bellows 16. In a modification the plates 18, 19 shown carrying the opposite ends of the bellows have rotary sealing engagement respectively with the shaft 25 and with the inner surface of housing 17, and the bellows is then omitted.
Patent GB-1447018-A (GB)
Title: Windshield wiper blade
IPC: B60S1/38
Filed: 1974-12-04
Abstract: 1447018 Windscreen wipers MONROE BELGIUM NV 4 Dec 1974 [30 Jan 1974] 52459/74 Heading A4F A windscreen wiper blade comprises a hollow tubular flexor 18 which receives a mounting portion 60 of a wiper element 20 having a wiping portion 64, a bridge 16 secured to longitudinally spaced portions of the flexor and having between intermediate and end portions 22, 24, 26, thereof portions 28, 30 of substantially circular cross-section to reduce lifting of the blade by wind, the intermediate portion 22 having a cavity 32 for receiving a wiper arm end 12 or a connector 14 therefor, and means connecting at least one end of the bridge 16 to the flexor 18 in a manner permitting relative longitudinal movement between the flexor 18 and the bridge 16 for conforming the blade to the curvature of a windscreen being cleaned. In the embodiment illustrated in Fig. 1 the bridge ends 24, 26 are connected to the flexor by connectors C 1 , C 2 , respectively, comprising reduced portions providing hinges 78, 80 and a hinge 82, respectively. In an alternative embodiment hinges are provided by pivot pins (96, 98 and 108) Fig. 6 (not shown). In further embodiments Figs. 17 to 23 (not shown), the flexor and bridge are connected by hooks, pin and slot devices, and fixed and sliding claws.
Patent GB-1496060-A (GB)
Title: Method of checking thickness of sheet materials by using acoustic oscillation and a device for effecting the same
IPC: B21B38/04
Filed: 1975-12-30
Abstract: 1496060 Measuring thickness of sheet VSES N I I KONSTRUKTOR INST "TSVETMETAVTOMATIKA" 30 Dec 1975 53200/75 Heading G1G The thickness of sheet material 4 is measured by transmitting pulses of acoustic travelling waves through the material in a direction perpendicular to the plane of the material and comparing the amplitude of the received pulses with a reference signal representing a known thickness of the material, errors associated with standing wave techniques being avoided by having the distance between the transmitter and the receiver greater than the length of a travelling wave train. A Piezo-electric transmitter 1 and receiver 3 may be used. The frequency is chosen to give a wavelength in the material 4 of at least four times its maximum thickness. In one arrangement, Fig. 1 (not shown), the material 4 is in a water bath thermostatted at 70-80‹C. The received signals are amplified (7), peak detected (8) and the difference between the  result and a reference signal recorded (12). The reference signal is obtained by adjustment of a D.C. source (11) to give zero output on the recorder (12) when a material of known thickness is between the transmitter (1) and receiver (3). In Fig. 2, the material 4 is in air. The reference signal is obtained by an additional acoustic transmitter 13 and receiver 14 co-operating with a specimen 10 of known thickness. Comparing means 15 may derive the ratio or difference of the two signals. In another arrangement, Fig. 3 (not shown), only one transmitter (1) is used, the reference signal being derived from a second receiver (18) exposed to a portion of the acoustic waves before they reach the material 4. The reference signal amplifier (19) may have temperature-dependent gain. The invention may be used in ferrous and non- ferrous metallurgy, polymer, pulp and paper industries. The sheet thickness may be 0À5 to 1 mm.
Patent GB-1319120-A (GB)
Title: Extraction of metallic valuables
Inventor: GANDON L
IPC: C22B23/00
Filed: 1970-11-12
Abstract: 1319120 Recovery of Co and Ni LE NICKEL 12 Nov 1970 [19 Nov 1969 19 Dec 1969] 53867/70 Heading C1A Co and Ni are recovered from an iron rich oxidic material by treating a minor fraction of the material with aqueous HCl, mixing with the major fraction of the material, heating to produce Co and Ni chlorides and evolve HCl, and extracting the chlorides with water. The material is preferably a lateritic ore, and Al, Mn, and Mg are also extracted. The heating may be either drying followed by roasting at 250-350‹ C., or autoclaving at 230-270‹ C. The HCl may be absorbed and recycled. Part of the dried material may be recycled to the mixing step. The extraction is preferably effected in a series of countercurrent operations. Co and Ni may be recovered from the aqueous solution by ion exchange or solvent extraction methods. Ion exchange: the solution is passed through a bed of a sulphonated polystyrene which retains Co and Ni, and the effluent is recycled to extract the chlorides. The resin is regenerated with HCl or NaCl, and the solution, after evaporation, is further treated with ion exchange resin to remove CO. Ni is then obtained by electrolysis. Solvent extraction: Co is extracted into the organic phase by treatment with a solution of a tertiary C 9-11  carboxylic acid in, e.g., kerosene or cyclohexane, in the presence of NH 4 OH. Ni is then extracted from the aqueous phase using the same organic material. The organic solutions are then selectively reduced with H 2  in an autoclave to precipitate Co and Ni, and the organic phase is regenerated with HCl. The resulting solutions of Mg, Mn and Al chlorides are distilled to evolve HCl which is recycled, and the chlorides are roasted to the oxides.
Patent GB-1368914-A (GB)
Title: Process and device for the formation and stretching of plastics sheets
IPC: B29C48/10
Filed: 1972-11-22
Abstract: 1368914 Stretching sheets FARBWERKE HOECHST AG 25 Nov 1972 [24 Nov 1971] 63872/72 Addition to 1308837 Heading B5A An improvement in or modification to the process described in Specification 1,308,837, comprises extruding a tube of thermoplastic material from an oscillating blow head 1, flattening and welding the tube in heated rollers 3, 4, and then passing the sheet so formed to rotating discs 6 which grip the edges of the sheet to stretch it.
Patent GB-1477908-A (GB)
Title: High intensity lamp dimming circuit
IPC: H05B41/40
Filed: 1974-12-13
Abstract: 1477908 Dimmer circuits for discharge lamps ESQUIRE Inc 13 Dec 1974 [11 Feb 1974] 53949/74 Addition to 1393853 Heading H2H For use with a high luminous intensity gas discharge lamp, a dimmer circuit comprises an inductive ballast 12, 14 connected in series with a lamp 10 across a mains supply, a gated by-pass device 20 for providing at least partial by-pass of current around a portion 14 of said ballast 12, 14 and a gate voltage circuit for rendering said gated by-pass device 20 conductive and coupled to said gated by-pass device 20 by means of an isolating device 42 arranged so that the potential of the gate voltage circuit is independent of that of the supply mains. As shown in Fig. 1, a mercury vapour lamp 10 is connected in series with inductive ballast 12, 14 across supply mains. A triac 20 is provided for the purpose of short-circuiting the ballast 14 during controllable portions of each half-cycle so as to control the brightness of lamp 10. Gating pulses for the triac are derived from a programmable uni-junction transistor PUT 60 which is triggered when the anode voltage is slightly larger than the gate voltage so as to turn on an auxiliary triac 58, connected in series with a pair of Zener diodes 54, 56, which is arranged to drive a pulse of current through the primary of isolating transformer 42 and so trigger the main triac 20 at the desired time in each half-cycle. Anti-parallel diodes 34 ... 38 prevent triac 20 being triggered by the effect of residual magnetism in transformer 42. The timing of operation of the PUT 60, and hence the brightness of lamp 10 is determined by switches 90, 92 and by variable resistor 74. Isolating transformer 42 may be replaced by an optical, acoustic or magnetic isolator. Fig. 4 (not shown) relates to a three-phase circuit comprising three transformers 46 each feeding respective bridge rectifiers 64 feeding a common brightness adjusting variable resistor 74 the slider of which is arranged to control three circuits each comprising a PUT 60, isolating transformer 42 and triac 20 controlling respective lamps 10. Figs. 5 ... 7 (not shown) depict block diagrams of alternative means of timing the PUT 60 by use of voltage and current sensors, zero crossing or peak detectors. Figs. 9-14 (not shown) show alternative connections between the supply mains, ballast 12, 14 and the lamp 10 some of which involve auto-transformers.
Patent GB-1355300-A (GB)
Title: Toy vehicles
IPC: A63H17/12
Filed: 1972-11-23
Abstract: 1355300 Toy vehicles TONKA CORP 23 Nov 1972 [25 Feb 1972] 54143/72 Heading A6S A toy vehicle formed as a road grader or scraper has ground-engaging wheels 12, 22 and a scraper blade 31 which, in the operative position of Fig. I, extends laterally from and backwards relative to the main axis of the vehicle, but for packaging or, storage is pivoted about an axis, Z-Z inclined to the main axis so as to lie alongside the front of the vehicle, Fig. 3. The scraper blade 31 is arcuate in crosssection so as to pile-up sand &c. when the vehicle moves over it. The front part 14 of the vehicle is connected by a vertical pivot pin 15 to the rear, power unit part 11.
Patent GB-1416993-A (GB)
Title: Horticultural cloche house or shelter
IPC: A01G13/02
Filed: 1971-11-24
Abstract: 1416993 Horticultural shelter POLYCLAD Ltd 19 Feb 1973 [24 Nov 1971] 54606/71 Heading A1E [Also in Division E1] Protective horticultural shelter comprises at least two frames located side by side as a double or multi-span structure, each frame defining a span and including roof members 10. longitudinal side members 12 and vertical wall pillars 14. Flexible roof covering 16 extends over the side frame members 12, is wrapped around them and retained by spring clips. A strip of resilient material 18, initially square in cross section, is held between the longitudinal side frame members 12 of adjacent spans which are clamped together to form a seal against rain water. Co-pending Application 53596/71 is referred to.
Patent GB-1163528-A (GB)
Title: Method of, and apparatus for, generating digital information pertaining to the angular position of a phase shifter rotor
IPC: H03M1/00
Filed: 1966-12-08
Abstract: 1,163,528. Selective signalling. JUNGNER INSTRUMENT A.B. 8 Dec., 1966 [9 Dec., 1965], No. 54971/66. Heading G4H. A phase significant signal produced by, and representative of the position of the input shaft to, a synchro, is digitized by using its positivegoing zero cross-overs to gate out the contents of a counter, counting relatively high-frequency clock-pulses, into a store. This arrangement has the advantage that a single counter can be used by a plurality of synchros. In a modification two synchros are coupled by reduction gearing and to prevent ambiguities the most significant bit produced by the lower order synchro is used to effectively slightly advance or retard the zero cross-over of the higher order synchro.
Patent GB-1411645-A (GB)
Title: Method and apparatus for offshore geophysical exploration
IPC: G01V1/38
Filed: 1973-11-29
Abstract: 1411645 Marine seismic exploration TEXACO DEVELOPMENT CORP 29 Nov 1973 55455/73 Heading H4D A marine survey is made by towing a seismic detector streamer such that the detectors pass in succession through a predetermined surface point, actuating a seismic source at a single fixed location each time a detector passes through the point, deriving from each detector a respective signal representing the seismic energy arriving at the point, and stacking the signals. In the embodiment described, for refraction surveying, the source comprises four air guns carried by an anchored vessel and fired together. The streamer has, e.g. 24 detectors (each including a geophone array) and is towed by a second vessel. One of the vessels carries a radio navigation system to identify its position; the relative position of the other vessel being identified by computing the water-break arrival times at selected locations along the streamer or by a second radio system. A command signal for remotely actuating the source is generated on board the towing vessel at intervals equal to the time taken for the streamer to advance by one detector length. A signal notifying the actuation instant is sent from the first to the second (towing) vessel. Detector signals associated with common surfaces points are stacked.
Patent GB-1110160-A (GB)
Title: Improvements in or relating to pressure fluid-operated diaphragm-type sound transmitters, and a method for providing acoustic signals
IPC: G10K9/04
Filed: 1966-12-13
Abstract: 1,110,160. Foghorns. KOCKUMS MEKANISKA VERKSTADS AKTIEBOLAG. 13 Dec., 1966 [16 Dec., 1965], No. 55809/66. Heading G5J. A conventional foghorn has an electric heater 18 (supplied from leads 19) to vaporize rapidly residual moisture in the driving fluid entering inlet chamber 15 from inlet pipe 17 and filter 16. The driving medium may be supplied in liquid form (alcohol or freon &c.) and vaporized by the heater or a combustible liquid may be ignited by it. Diaphragm 14 is held in position on annular seat 12 of thermally insulated 20 housing 10 by cover 11 and it vibrates to produce sound when the gas or vapour from the driving medium exerts sufficient pressure. The thermal insulation 20 may extend over a portion of the horn which may be heated by heating coils and the heater 18 may be located in advance of the position shown.