baber/WOPTO huggingface dataset:
Patent GB-1540937-A (GB)
Title: Device for coating an optical fibre with a layer of plastics material
IPC: C03C25/16
Filed: 1977-12-15
Abstract: Device for coating an optical fibre with a plastic layer, the device including a reservoir (1), the bottom of which is extended by a vertical capillary tube (2), and a guide tube (3) which includes a capillary part (4) placed above and in alignment with the tube (2). Molten plastic (13) is injected (introduced) into the reservoir (1) around the tube (3) and the optical fibre (12) is threaded along the axis of the tubes (2) and (3) and is moved vertically downwards. The device can be used for the manufacture of telecommunication optical fibres. <IMAGE>
Patent GB-1444113-A (GB)
Title: 3,6-dihalodiphenyl alkanes and their production
IPC: C07C25/18
Filed: 1973-11-16
Abstract: 1444113 3,6 - Dihalodiphenylalkanes BASF AG 16 Nov 1973 [18 Nov 1972] 53222/73 Heading C2C The invention comprises compounds of the formula wherein each R<SP>1</SP> is an aliphatic radical, R<SP>2</SP> is H or halogen, R<SP>3</SP> is H or an aliphatic radical and each X is halogen. They may be obtained by halogenating a compound of the formula with halogen or a halogenating agent yielding halogen under the reaction conditions. The reaction may be carried out in the presence or absence of solvents or halogenation catalysts. Examples are given for the production of the compounds.
Patent GB-1190300-A (GB)
Title: Coffee Mill
IPC: A47J42/40
Filed: 1968-11-18
Abstract: 1,190,300. Coffee mills. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 18 Nov., 1968 [21 Nov., 1967], No. 54661/68. Heading B2A. A coffee mill has a discharge opening 7 through which a grinding space 6 communicates with a detachable container 8 which is rotatably secured to a mill housing. A scraper or scrapers 9 can rotate along the discharge opening when the detachable container is rotated so that coffee sticking around the opening falls into the container. As described, the mill has an upper fixed grinding member 2 and a lower driven grinding member 5, and the container may have lugs or a thread which respectively snap behind a rim of or engage threads on the housing.
Patent GB-1433008-A (GB)
Title: Control units for electronic communications devices
IPC: H03J1/06
Filed: 1973-11-26
Abstract: 1433008 Pulse button receiver control WALTER PREH GmbH 26 Nov 1973 [24 Nov 1972] 54819/73 Heading H3Q [Also in Division H1] In a control unit for an electronic communications device having mutually cancelling pushbutton switches 11 for changing channels of the device, at least one support 5 carries a plurality of variable resistors (not shown) and rotary controls 33 for these variable resistors and the support 5 is slidably mounted so as to be withdrawable independently of the push-button switches to facilitate manual rotation of the rotary controls 33. Also the variable resistors are electrically independent of the push-button switches 11 such that when the control unit is controlled and in use the rotary controls 33 can be used for varying signals which will affect operation of the device independently of whichever of the push-button switches is operational. As shown in Fig. 1 a plastics plate 2 is mounted on a plastics body 1 by resilient tongues 3. Two slide-in frames 5 can be withdrawn so as to allow adjustment of knurled knobs 33 which are connected by round shafts 34 having flats which pass through plastics sleeves associated with the siders of rheostats accommodated circular recesses 29, Fig. 3, formed at the top and bottom of the plate 2. The knobs 33 may have graduated scales. A plastics frame (19, Fig. 4, not shown) is spring biased by a spring (22) and co-operates with each switch rod 13, Fig. 3, connected to each button 11 so that the buttons 11 are mutually cancelling. A pair of contact springs 16 are fitted to each switch rod 13 so as to contact electrical connectors on the base plate 2 when the associated button 11 is pressed. When a button 11 is pressed it also operates to close the mains switch 32 which is switched off by pressing mains switch 12. The control unit may be used in a television receiver to select preset reception frequencies by the push button switches. The rotary control members 33 may be used to adjust picture contrast and brightness and sound tone and volume.
Patent GB-1484135-A (GB)
Title: Electric storage batteries
IPC: H01M50/528
Filed: 1974-10-03
Abstract: 1484135 Manufacture of iritercell connections in batteries OLDHAM & SON Ltd 3 Oct 1974 [27 Nov 1973] 54988/73 Heading H1B [Also in Division B3] A multicell battery is characterized in that the plates of one polarity of one cell are connected to those of a different polarity in an adjacent cell by means of a cast connecting member which extends along the row of plate lugs in each cell and passes integrally through and fills an aperture in an otherwise closed intercell partition wall, and also by a method of making the intercell connectors wherein a mould is positioned adjacent each cell and a slotted wall of the mould is moved to form a trough in combination with the plate lugs projecting through the slots and with a further wall of the mould, one end of the trough communicating with the aperture in the intercell partition, and wherein molten lead or lead alloy is poured into the mould and passes through and fills the aperture in the partition wall, the slotted wall being moved away from the lugs and the mould removed from the cell when the metal has set. In a preferred embodiment the mould is adapted to cast all intercell connectors simultaneously and comprises an elongate body 11 and two comb-like portions 13 running along each side, these portions when closed as shown forming troughs 19 with the plate lugs and the walls of the body 11 into which the molten metal 20 is poured. The comb portions are then rotated away from the body 11 and the mould removed.
Patent GB-1100610-A (GB)
Title: Magnetic recording medium and method of making same
IPC: G11B5/706
Filed: 1965-12-29
Abstract: 1,100,610. Magnetic structures. SONY CORPORATION. 29 Dec., 1965 [30 Dec., 1964], No. 55058/65. Heading HIH. An animal hydrocarbon lubricant is incorporated in the magnetic layer of a magnetic recording tape to prevent wear, in an amount up to 20 parts per 100 parts (by weight) of the magnetic material present. The magnetic layer comprises magnetic particles in a binder which may be polyvinyl chloride-polyvinyl acetate copolymers, polyvinyl acetate, polyacrylic esters such as polybutyl acrylate, polyvinyl chloride, polyurethanes and epoxy resins or mixtures thereof. Suitable solvents are toluene and methyl ethyl ketone. The layer may be 10 Á thick. The magnetic material may be  γ Fe 2 O 3  or an alloy comprising 30-70% iron, 40-80% cobalt and 0-20% nickel. Suitable lubricants are squalene (C 30 H 50 ) which is contained in shark liver oil, pristan (C 18 H 38 ), eicosan (C 20 H 42 ), and squalane (C 30 H 62 ). Stearyl laurate ester (C 11 H 23 COOC 18 H 37 ) may be included as an additional lubricant.
Patent GB-1442390-A (GB)
Title: Method for the production of exhaust and waste gases purifying catalyst
IPC: B01D53/94
Filed: 1973-11-29
Abstract: 1442390 Treating gases NIPPON SHOKUBAI KAGAKU KOGYO CO Ltd 29 Nov 1973 [30 Nov 1972 (2)] 55509/73 Heading C1A [Also in Division B1] Exhaust gases from I.C. engines or industrial processes are treated for oxidation of carbon monoxide, hydrocarbons and other organic compounds and/or reduction of nitrogen oxides in contact with a platinum metal-containing catalyst formed by (i) dissolving an alumina sol with inorganic acid to form a solution of pH 4À0 or below; (ii) forming a slurry by adding, at a temperature of 0 to 30 C., a powdered alumina containing at least 50% rho alumina and any remainder activated alumina or alumina convertible thereto on calcination at 300-600 C.; (iii) coating the slurry on to an inert refractory monolithic honeycomb support at 0 to 30 C.; (iv) ageing for at least 30 mins. at a temperature not exceeding 50 C.; (v) drying and calcining at 300-600 C.; (vi) impregnating with a platinum group metal solution or suspension, and (vii) activating by calcination at 300-600 C. or reduction at 150-600 C. The waste gases may contain organic solvents, formaldehyde, phthalic or maleic anhydrides, acrylic acid, ethylene oxide or other compounds resulting from enamelled wire or resinified steel sheet-baking furnaces, offset printing machines, synthetic fibre manufacture or tobacco manufacture. The examples describe the oxidation of carbon monoxide and hydrocarbons or reduction of nitrogen oxides in I.C. engine exhaust gases, the oxidation of effluent gas from phthalic anhydride manufacture and the oxidation of an enamelled wire baking furnace waste gas containing naphtha, cresol and phenol.
Patent GB-1120086-A (GB)
Title: Induction motor speed controller
IPC: H02P25/14
Filed: 1966-12-15
Abstract: 1,120,086. Control of A.C. motors. GENERAL MOTORS CORP. 15 Dec., 1966 [3 Jan., 1966], No. 56196/66. Heading H2J. An induction motor 20 is energized via a thyristor 14 and diode 22 connected back to back. The firing angle is determined by a variable impedance network, the variable factor comprising, e.g. a thermistor 32. As shown, this determines the instant at which a transistor 24 conducts, but alternatively the transistor is omitted and the thermistor, in series with a rheostat, is connected between the junction of 28 and Zener diode 44 and the trigger electrode 15. Resistor 48, capacitor 50 and inductor 46 are for radio interference suppression. The motor runs faster with increasing temperature of 32.
Patent GB-1332165-A (GB)
Title: Process for the preparation of elastomeric block copolymers
IPC: C08F297/02
Filed: 1970-11-30
Abstract: 1332165 Three-block diene-acrylic copolymers STAMIOARBON NV 30 Nov 1970 [3 Dec 1969] 56742/70 Heading C3P An elastomeric block copolymer of the formula A-R-C, wherein at least one of A and C is a non-elastomeric block of a (meth) acrylate or nitrile of molecular weight from 200 to 20,000 and the other block is of the same type or a non-elastomeric block formed from other unsaturated monomer(s), and of molecular weight from 2,000 to 100,000, and B is an elastomeric conjugated diene polymer block of molecular weight from 25,000 to 1,000,000 is obtained by sequential polymerization using mono- or di-functional organo-lithium initiators, in the absence of Lewis bases in the formation of block B. In examples s-butyl lithium or dilithium pentane are used to prepare polystyrene-polyisoprene-polyacrylonitrile or -polymethylmethacrylate or polyacrylonitrile-polyisoprene-polyacrylonitrile copolymers.
Patent GB-1428010-A (GB)
Title: Process for manufacturing of dispersed cationic dyestuffs
IPC: D06P3/70
Filed: 1973-12-13
Abstract: 1428010 Basic dye compositions NIPPON KAYAKU KK 13 Dec 1973 [16 Dec 1972] 57775/73 Heading D1B Basic dye compositions comprise one or more finely dispersed difficultly water soluble dye complex salts composed of one or more anionic dispersants and one or more watersoluble basic dyes. Preferably 1 part of basic dye is used with 1 to 15 parts of anionic dispersant which may be a condensate of formaldehyde with naphthalene-sulphonic acid or with methylnaphthalene-sulphonic acid or is lignin sulphonic acid or an alkyl sulphonate. The compositions are prepared by dissolving the dye in water to which the anionic dispersant is added and the product dye complex separated or dispersed with excess dispersant in the aqueous medium. Acid modified polyacrylonitrile and acid modified polyesters may be dyed by treating with the dye complex at elevated temperatures at which the dyes are released from the complex. Extenders e.g. dextrin may be added to the compositions. Fibre mixtures may be dyed using e.g. acid, reactive or disperse dyes in conjunction with the basic dye complex.
Patent GB-1176669-A (GB)
Title: Process for the Electrochemical Production of Olefin Oxides.
IPC: C25B3/23
Filed: 1966-12-30
Abstract: 1,176,669. Electro-chemical production of olefin oxides. FARBENFABRIKEN BAYER A. G. Dec.30, 1966 [Jan. 25, 1966], No. 58279/66. Heading C7B. In a process for the electro-chemical conversion of an olefin, i.e. a gaseous mono-olefin such as ethylene, propylene or butylene, or a halogenated mono-olefin such as allyl chloride, into an olefin oxide in a system consisting of an anode, a cathode and a diaphragm arranged therebetween, and in the presence of an aqueous electrolyte containing a metal halide which is passed from the anode compartment through the diaphragm into the cathode compartment, a gaseous mixture of the olefin to be reacted and at least one gas inert to the reaction is introduced into the anode compartment, the concentration of the olefin in the gas mixture being between 25% and 75% by volume, and the feedrate of the olefin being such that from 75% to 95% of the olefin introduced is converted in a single pass of the gas mixture through the anode compartment. The olefin is converted into olefin halohydrin at the anode, which passes through the diaphragm to the cathode compartment where it is converted into the olefin oxide. Unconverted olefin, inert gas and gaseous products are withdrawn from the anode compartment and may subsequently be recycled to the anode compartment or may be used as a fuel. Prior to recycling any halogen compounds may be removed therefrom. The anode may comprise graphite, or titanium coated with a noble metal or oxide thereof; and may be porous, the gas mixture being supplied therethrough. A wire gauze cathode may be used. The diaphragm may be of asbestos, polyfluorohydrocarbons, polyolefins,. polystyrenes, polyacrylonitrile or polyvinyl compounds and may be formed as a porous plate or woven or non-woven fabrics.
Patent GB-1221060-A (GB)
Title: Improvements in and relating to calcium silicate insulation
Inventor: LAIDLER THOMAS GORDON
IPC: C04B28/18
Filed: 1967-12-27
Abstract: 1,221,060. Calcium silicate composition. CHEMICAL & INSULATING CO. Ltd. 12 Nov., 1968 [27 Dec., 1967], No. 58651/67. Heading C3N. [Also in Division C1] Calcium silicate is prepared by mixing an alkali metal silicate solution, e.g. sodium silicate, having a molecular ratio of silica to alkali metal of between 2 and 4, and a solution of a soluble calcium salt, e.g. calcium chloride, to form a homogeneous calcium trisilicate suspension, adding hydrated lime and an alumina-bearing substance, e.g. kaolin, heating the suspension to between 60‹ and 90‹ C., pouring the suspension into a water-jacketed mould, ejecting the formed product from the mould when it has attained a self-supporting state and autoclaving the product to form 11 A tobermorite. To the suspension may also be added solid silica, e.g. crushed quartz, an inhibitor, e.g. sugar, to retard any reaction prior to moulding, a reinforcing binder, e.g. amosite asbestos fibre, and a source of well-crystallized calcium carbonate.
Patent GB-1372498-A (GB)
Title: Power transmission mechanism
IPC: F16H61/00
Filed: 1972-12-20
Abstract: 1372498 Change-speed gearing control FORD MOTOR CO Ltd 20 Dec 1972 [27 Dec 1971] 58910/72 Heading F2D  In an automatic power transmission mechanism comprising an hydraulic torque converter and planetary gear trains providing three forward ratios and reverse, clutches and brakes for establishing the various ratios are operated by fluid-pressure servomotors under the control of valve means which receive a control pressure signal indicative of engine torque and determined by a modulator valve actuated by a vacuum signal which is modified to be functionally related to the degree of opening of the engine throttle valve. In the schematic control circuit shown pressure fluid from a pump 30 driven by the impeller of the torque converter 18 passes through a valve 78 which maintains a regulated pressure in a line 80 leading to a manual selector valve 82. This pressure is maintained at either of two levels determined by a cut-back valve 104 which is effective on the valve 78 and is responsive to a vehicle speed governor valve 74. When the selector valve 82 is set to position D, servos 66 and 60 are successively operated by shift valves 90, 92 to change automatically from low ratio to intermediate and from intermediate to high or direct drive. Each shift valve is controlled in part by pressure in a line 94 determined by the vehicle speed governor 74, and in part by pressure in a line 102 determined by a valve 96 in relation to output pressure of a valve 98, this latter valve being adjusted by an actuator 108 subjected to vacuum relayed from the engine intake manifold by a regulator valve 122. A loading spring abutment in the regulator 122 is linked to the engine throttle valve so that the vacuum relayed to the actuator 108 is modified as a function of throttle valve opening. Further modification of the relayed vacuum may be effected by the action of a solenoid on the loading spring abutment of the regulator 122. This solenoid is energized when an exhaust gas recirculation system becomes operative in response to an engine temperature, engine speed or manifold vacuum, or any combination of these.
Patent GB-1188483-A (GB)
Title: A Circuit Arrangement for a Centrally Controlled Telecommunications Installation, and more particularly for a Telephone Exchange
IPC: H04Q3/545
Filed: 1968-12-13
Abstract: 1,188,483. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 13 Dec., 1968 [16 Dec., 1967], No. 59348/68. Heading H4K. An exchange system is divided into sections, scan points in each section being supervised by an associated section scanner/controller which in a time slot devoted to a scan point can effect basic network control functions according to the detected state of the point, some detected states of a point, however, requiring the cooperation of a common control circuit, the section scanner/controllers operating concurrently and each employing a two-part cycle the first part of which is a scan for conditions with basic network control functions being carried out where required, those conditions requiring the co-operation of common control being made up into a task list for the attention of common control in the second part of each cycle, the second parts of the cycles of operation of the section scanner/controllers being staggerred so that the common control can service the task list for each section in turn. The scan points may be line circuits, originating junctors or junctors terminating incoming trunks. Line circuits may be served separately by scanners with direct supervision from the common control which is a program controlled processor. The time slots in which the line circuit scanners operate are interleaved and the total pattern of interleaved line circuit scanning time slots being further interleaved by the time slots of the two-part cycles of the scanner/ controllers supervising the junctors. Further gaps can be arranged in the pattern of interleaving of the two-part cycles so that the common control processor may have concurrent access to a line circuit scanner and the associated section scanner/controller.
Patent GB-1291877-A (GB)
Title: A tubular heat exchanger
IPC: F28F9/007
Filed: 1969-12-05
Abstract: 1291877 Tubular heat exchangers COMPAGNIE PECHINEY 5 Dec 1969 [6 Dec 1968] 59486/69 Heading F4S In a heat exchanger for heating scale forming liquids and suspensions by means of heating fluid passed through heating members 31-34 located one above another within a jacket 1 wherein each member 31 comprises an assembly of superimposed flat tubular coils each connected to inlet and outlet headers 61, 71, the coupling between the ends of each coil and the headers is such that each coil may be raised sequentially into the free space 161 above the respective assembly for inspection and cleaning purposes without the need to dismantle the coils from the headers. Access to the free spaces 161-164 is through inspection apertures 171-174. Each coil may either be in the form of a single or double spiral (see Figs. 2, 3) or be constituted by coaxial rings (see Figs. 4, 5). As shown the turns of each coil are welded to pairs of flat bars (441, 442, Figs. 2, 3) with inlet and outlet turns located at the periphery of the coil being left free, Fig. 9. Scale forming liquid enters the heat exchanger through pipe 132. Impellers 21-24 mounted on a central shaft 25 are provided for recirculating and uniformly distributing liquid across the heating members 31-34. For inspection and cleaning of the coils, the upper dome 15 is removed and the shaft 25 and impellers are dismantled: the upper coil 311 of the heating member 31 is raised and held in a position spaced from the following coil 312 by means of lifting and suspension devices (see Figs. 10-17, not shown) lowered down into the jacket 1. After inspecting and cleaning coil 31 the same operation is repeated for the following coil 312 which is raised and placed against the upper coil 311. Each coil has an inner ring 41 provided with blocks (81, Fig. 13) which can be engaged by the lifting device.
Patent GB-1338458-A (GB)
Title: Automatic filling of flowerpots
IPC: A01G9/08
Filed: 1971-12-22
Abstract: 1338458 Filling plant-pots G NOTHEN 22 Dec 1971 [22 Dec 1970] 59538/71 Heading A1E [Also in Division B8] Apparatus for automatically filling flowerpots comprises a conveyor 2 arranged to move intermittently and to pass in sequence beneath a magazine 1 for pot receptacles 4 arranged to release a pot receptacle 4 on to the conveyor at predetermined intervals, a pot supply device arranged to supply pots 3 to each pot receptacle 4, an earth-filling device 6, 7, 8 arranged to fill the pots with earth, an earth smoothing device 10 and a hole boring device 11 arranged -to bore a hole in the earth in each pot, the arrangement being such that the devices operates operate intermittently and in synchronism with the intermittent motion of the conveyor. As shown surplus earth is removed through holes 13 by a vertically movable rod device 12. Any earth removed by the device 10 is returned to a hopper 9.
Patent GB-1363248-A (GB)
Title: Interchangeable camera lens
IPC: G03B19/12
Filed: 1971-12-22
Abstract: 1363248 Photographic apparatus CANON KK 22 Dec 1971 [28 Dec 1970] 59801/71 Heading G2A An interchangeable photographic lens, intended for use with a single-lens reflex camera, has an electrically-operated iris diaphragm, actuated by a coupling member 5-2 on the lens body or on an extension tube and a switch S1. As a result, the diaphragm of a long telephoto lens can be coupled to the camera body 2 without the necessity for any long mechanical member to be present. A preview button 10 on the camera body may be made to operate a switch S2 in the electric circuitry of the lens, to cause the diaphragm to stop down temporarily to an opening set by a rotatable pre-set ring 13. When the shutter button of the camera is depressed, and coupling lever 4 moved in consequence, the switch S1 is closed, and the diaphragm is stopped down prior to exposure. Alternatively, the switches S1 and S2 may be replaced by a single switch, operable either by the coupling member 5-2 or by a rod actuated by the preview button. A delay means may be incorporated to allow the diaphragm to close fully before the shutter fires.
Patent GB-1291339-A (GB)
Title: Fluid pressure control valve
Inventor: OTTO MANFRED
IPC: F16K17/26
Filed: 1970-12-17
Abstract: 1291339 Valves KOMBINAT ORSTAHYDRAULIK VEB 17 Dec 1970 60042/70 Heading F2V A valve 5 for maintaining the differen e between an inlet pressure P 1  and an auxiliary pressure P 3  constant is urged by resilient means 7 to a position in which an outlet 3 is closed and has an orifice 6 to allow flow to an auxiliary outlet 4 through an orifice 15 in a boss 13 of smaller diameter than the valve so that flow of fluid to the outlet 4 s prevented when the valve is fully open. A slot of smaller cross-section than the orifice 6 may be provided in the end face 8 of the valve or in the face 14 of the boss 13 if there is insufficient oil leakage in the valve circuit to maintain P 3 .