baber/WOPTO huggingface dataset:
Patent GB-1377008-A (GB)
Title: Manufacturing luminescent alkaline earth halophosphates
IPC: C01B25/455
Filed: 1972-09-08
Abstract: 1377008 Luminescent materials PHILIPS ELECTRONIC & ASSOCIATED 'INDUSTRIES Ltd 8 Sept 1972 [11 Sept 1971] 41799/72 Heading C4S A Sb activated alkaline earth halophosphate which may include Cd or Mn actuators is prepared by reacting halophosphate unactivated with Sb or a mixture from which the halophosphate can be produced with gaseous Sb 2 O 3  at 900-1250‹ C. in an inert atmosphere, the Sb 2 O 3  being produced by heating alkaline earth, Cd or Mn antimonitic or antimonate mixed with a pyrophosphate. The method results in a high Sb content and high UV absorption. A mixture of CaHPO 4 , CaCO 3 , CaF 2 , MnHN 4 PO 4 , HN 4 Cl and CdCO 3  is heated in air at 700- 800‹C. The resultant halophosphate and Ca antimonite in separate containers are heated to 1180‹ C. in a furnace through which N 2  flows. The activated halophosphate is reheated to 1050‹ C. in N 2 . The antimonite may be replaced by a mixture of Ca and/or Sr antimonite or antimonate and Ca and/or Sr pyrophosphate, the product is not reheated but washed in NH 3  H 2 O 2 .
Patent GB-1486913-A (GB)
Title: Circuit arrangements for short-circuiting loads
IPC: H02H3/02
Filed: 1974-09-27
Abstract: 1486913 Semiconductor devices ROBERT BOSCH GmbH 27 Sept 1974 [28 Sept 1973] 42062/74 Heading H1K [Also in Division H3] A monolithic integrated circuit for shortcircuiting a load comprises a vertical transistor having a collector region 23 having one contact C 2  for connection to the load and another contact C 1  for connection to the source supplying the load. The base region 24 contains three emitter regions 26a, 26b and 26c of decreasing area which are connected to a common external emitter terminal which is grounded. Connection to the base region from an external base terminal is through resistors 50, 51 to points between the emitter regions. A highly doped sub-collector region provides some significant resistance, so that while the bulk of the short circuit current flows through emitter E 1 , the residual voltage across C 1  and E 1  is successively divided by resistances r CLAB , r CEB  and r CLBC  and r CEC .
Patent GB-1115119-A (GB)
Title: Hydrocarbon chlorides
IPC: C07C17/38
Filed: 1966-09-21
Abstract: Hydrocarbon chlorides contaminated with a metal or metals and which are to be subjected to heat are stabilized against decomposition on such heating by the addition of at least one mole of a liquid organic phosphate per mole of metal present.  The heating may occur, e.g. during distillation and the metal impurities, especially iron, may arise from contact of the hydrocarbon chlorides with the metal during production of the hydrocarbon chlorides.
Patent GB-1339145-A (GB)
Title: Electric arc welding device using a pulsed welding current
IPC: B23K9/09
Filed: 1971-09-09
Abstract: 1339145 Welding by fusion SMIT WELD BV 9 Sept 1971 [11 Sept 1970] 42160/71 Heading B3R [Also in Division H2] A method of electric arc welding, particularly with a consumable electrode, comprises connecting separate rectifiers in parallel with the welding electrode 11 to respectively supply a pulse current and a background current, and rendering the background current rectifier conductive during the trailing edge of the pulse current. The rectifier for supplying the pulse current comprises a pair of thyristors 9 connected by coils 7, 8 to one of the secondary windings of a three phase transformer 6 having primary windings 5. The pulses are fed to the electrode 11 via a centre tap and a first portion of winding of an auto transformer 10. The background current rectifier comprises three pairs of thyristors 9 connected to a second portion of the winding. At the moment of cut-off of the pulse current, a voltage is induced in the second portion of the winding which renders the thyristors of the background current rectifier conducting so that background current is supplied to the electrode before the pulse current reaches a value to low to maintain the arc.
Patent GB-1460025-A (GB)
Title: Street lighting columns
IPC: E04H12/18
Filed: 1973-09-08
Abstract: 1460025 Lamp posts ABACUS ENG Ltd 27 June 1974 [8 Sept 1973] 42322/73 Heading E1B A street lighting column comprises a base 1 (shown in phantom) pivotally supporting at 3 an upper section 2, the arrangement being such that the upper section has to be lifted relative to the base before it can be pivoted and a plate 8 is pivoted at an end of the pivot axis which can be turned to co-operate with a lug 9 to support the upper section in its raised position. A double-acting piston and cylinder raises and pivots the upper section. The lower part 2a of the upper section is telescopically mounted on base 1. The base has a shaft comprising the pivot, the ends of the shaft extending through elongate slots in part 2a. The shaft pivotally supports the plates 8. The plate may co-operate with a second lug 10 (Fig. 1) to prevent the upper section from being lifted until the plate has been turned. A lock pin 11 is provided.
Patent GB-941007-A (GB)
Title: Improvements relating to aminoanthraquinonyl monoazo dyestuffs and their use
IPC: C09B43/16
Filed: 1960-12-09
Abstract: The invention comprises dyes of formula <FORM:0941007/C3/1> where X is H or alkyl or alkoxy groups of 1 to 4 C atoms, Y is H, Hg or an alkyl group of 1 to 4 C atoms and Z1 is on the average 30 to 100% a phenylamino group and 70 to 0% Cl or Br. The dyes are made by treating, in either order, about equimolar amounts of 4-(411-amino-311-sulphoanthraquinonyl - 111 - amino) - 41 - aminodiphenyl-31-sulphonic acid and an appropriate 4-amino-41-hydroxyazobenzene-31-carboxylic acid, or their soluble salts, with a 2,4,6-trihalo-1,3,5-triazine to form a secondary condensation product the heterocyclic halogen substituent of which is completely or partially replaced by treating with a primary phenylamine. Mixtures may be made by compounding appropriate single dyes or by using the requisite proportions of reactants during the process of preparation. Preferred reactants are cyanuric chloride, aniline and 4-amino-41-hydroxyazo-benzene-31-carboxylic acid.  The dyes colour cellulosic fibres in green shades and have particulary good drawing power when 2 is, on the average, 30 to 70%, especially 50 to 70%, phenylamino.  Other phenylamine reactants specified include m-toluidine and p-anisidine. Examples are provided of the preparation of the dyes and their use in colouring cellulosic materials.
Patent GB-1081226-A (GB)
Title: Improvements in or relating to rotary electric machines
Inventor: RAWCLIFFE GORDON HINDLE
IPC: H02K17/14
Filed: 1964-10-19
Abstract: 1,081,226. Synchronous induction motors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 7, 1965 [Oct. 19, 1964], No. 42575/64. Heading H2A. The rotor of a change-pole synchronous motor has regions of different permeance so spaced as to accommodate both pole-numbers. These regions may be made by cutting out peripheral portions 4, as shown, or by making tunnels (7, Fig. 7, not shown) in the stack below the squirrel-cage bars, or by varying the air-gap without removing rotor teeth or conductors (Fig. 10, not shown). Figs. 6 and 7 are for 4/6 poles, while Fig. 10 is for 4/6/8 poles and its air-gap may be varied step-wise, as shown, or smoothly graded. Figs. 8 and 9 (not shown) are the inverse of Figs. 6 and 7 respectively. Four speeds may be achieved by the use of graded air-gaps or two, axially-spaced rotors. Pole-changing may be by P.A.M.
Patent GB-1046650-A (GB)
Title: Chlorine-containing polymer compositions
Inventor: PENNECK RICHARD JOHN
IPC: C08K5/098
Filed: 1964-10-20
Abstract: Compositions comprise (1) chlorine-containing polymeres wherein at least 50% by number of the polymerized units are formed from chlorine-containing ethylenically unsaturated monomers, (2) a metal salt or salts having colour-stabilizing properties being a magnesium, calcium, strontium, barium, cadmium or zinc salt of an organic compound (e.g. an acid or a phenol), (3) succinic acid or its anhydride or a mono-aliphatic or aromatic ester of a saturated or unsaturated aliphatic dicarboxylic acid containing 4-10 C-atoms. Polymers exemplified are of vinyl chloride optionally with vinyl acetate or dioctyl fumarate.  Additional ingredients specified are: epoxy linseed and soya bean oils, epoxy tall oil ester, glycerol, 2,2-dimethyl - propan - 1,3 - diol, dilauryl - thiodipropionate, was.
Patent GB-1363446-A (GB)
Title: Preparation of polyesters
IPC: C08G63/181
Filed: 1971-09-16
Abstract: 1363446 Preparing polyesters DYNAMIT NOBEL AG 16 Sept 1971 [17 Sept 1970] 43336/71 Heading C3R A process for preparing polyesters comprises condensing in the melt 1,4-butanediol with an aromatic dicarboxylic acid optionally in admixture with an aliphatic dicarboxylic acid in which 1À05 to 1À25 mols. of 1,4-butanediol per mol. of dicarboxylic acid are used at a temperature below 200‹ C. and in the presence of 10<SP>-2</SP> to 10<SP>-4</SP> mols. of catalyst per mol. of dicarboxylic acid until a major proportion of non-reacted 1,4-butanediol and volatile condensation products have distilled off, and subjecting the condensate so obtained to further condensation in vacuo at 250‹ to 310‹ C. in the presence of a catalyst to give the polyester. The examples describe the preparation of polyesters from 1,4- butanediol and dimethyl terephthalate, optionally with isophthalic acid, sebacic acid, azelaic acid or adipic acid. Reference has been directed by the Comptroller to Specification 1,305,130.
Patent GB-1146090-A (GB)
Title: Improvements in or relating to methods of and apparatus for producing acetylene from natural gas
Inventor: KHUDYAKOV GEORGY NIKITICH
IPC: C07C2/80
Filed: 1967-09-25
Abstract: 1,146,090. Treating gases. ENERGETICHESKY INSTITUT IMENI G. M. KRZHIZHANOVSKOGO. 25 Sept., 1967, No. 43503/67. Heading H5H. [Also in Division C5] Acetylene is produced by introducing methane alone through pipe 4 into the chamber of a plasmatron 1 having a water-cooled anode 5 and a cathode 6. Additional methane may be introduced through pipe 12, and the reaction products are cooled by water streaming through openings 13 of a reservoir 14 and by water flowing between the double walls of reactor 3.
Patent GB-1518297-A (GB)
Title: Control of dc electric motors
IPC: B60L7/00
Filed: 1975-10-23
Abstract: 1518297 Controlling D.C. motors GENERAL ELECTRIC CO 23 Oct 1975 [20 Nov 1974] 43606/75 Heading H2J A D.C. motor control system comprises a time ratio controlled switching means 22 for controlling motor current, a plug sensing circuit including logic means responsive to a signal representative of a direction change command for the motor for initiating a signal for at least a predetermined period, said signal causing the current supplied to the motor to be limited to a predetermined level during plugging, and inhibit means responsive to a signal representative of the percentage on time of the switching means 22 for extending said predetermined period until the percentage on time achieves a predetermined value. As shown, a switch 14 energizes one or other of coils 16 and 18 for direction contactors F1, F2 and R1, R2 respectively in the field 21 and armature 20 circuit of the motor. The switching means 22 receives pulses from a voltagecontrolled oscillator 25 whose input is connected to receive a voltage from a circuit 27 which includes an operator-controlled potentiometer 28 and a capacitor 30. With the switch 14 in the position shown the contactors F1 and R2 are closed and the motor rotates in a forward direction at a speed controlled by the setting on potentiometer 28. In this condition a circuit comprising an inverter 45, a time delay 46 and a flip-flop 48 apply logic is to both inputs of an exclusive OR gate 47 which thus applies a logic zero to an AND gate 50. The logic zero output of AND gate 59 is applied to a current limit circuit 31 which also receives a signal representing the current flowing through the motor. This circuit 31 includes a pair of comparators 32, 33 having different references applied thereto. The logic zero from gate 50 disables the comparator 33 and thus the motor current is limited to the reference of comparator 32. If now the switch 14 is charged to reverse the motor for plugging, initially the AND gate 55 produces a zero output and a logic zero is inverted by an inverter 59 to turn on a transistor 56 to discharge capacitor 30 and remove the voltage from oscillator 25. When the switch then energize the contactor coil 18, the OR gate 47 provides a logic 1 output to cause AND gate 50 to provide a logic 1 output to circuit 31. This output disables comparator 32 and the motor current is then limited to the reference of comparator 33. When the percentage on time of the switching means 22 reaches a predetermined level, an amplifier 57 provides a logic 1 to AND gate 55 which then provides a logic 1 via a time delay 58 to disable the flipflop 48 and thus cause the OR gate 47 to again provide a logic zero to AND gate 50. The comparator 33 is thus again disabled, and the comparator 32 is enabled. A manually operable switch 61 is provided for overriding this system, e.g. if a vehicle in which this arrangement is provided is operating on a ramp where it is desired to provide normal current limit to prevent roll back.
Patent GB-986567-A (GB)
Title: Foldable litters
IPC: A61G1/044
Filed: 1963-11-06
Abstract: 986,567. Litters. UNION BAG-CAMP PAPER CORPORATION. Nov. 6, 1963 [Nov. 8, 1962], No. 43866/63. Heading A5X. A foldable litter comprises a one-piece sheet 10 of semi-rigid material formed of compressed fibreboard which resists penetration by moisture, which sheet is divided into an elongated centre panel 12 and head and feet panels 14 and 16 hinged to the centre panel by fold lines 18 and 20, whereby the said head and feet panels can be folded over to lie parallel to the centre panel. The centre panel may have hand-hold apertures 22. The head or foot panel may include an integral tab, e.g. 26, for engaging the end extremity of the other of said panels when the litter is folded. The centre panel may have a fold midway along its length and the head panel may have side flaps 34, 36. The panels may have straps 48, 52 for holding the patient down. The panels may have inturned marginal edges reinforced with tape, along their longitudinal edges. The fibreboard may be coated with nitrocellulose.
Patent GB-1237867-A (GB)
Title: Swash plate type pumps
Inventor: BOTTOMS HAROLD SIMISTER
IPC: F04B1/20
Filed: 1967-09-27
Abstract: 1,237,867. Swash-plate pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 26, 1968 [Sept.27, 1967], No. 43904/67. Heading F1A. In a rotary cylinder block swash-plate pump with a stationary port plate 17, excess leakage of the pumped liquid collecting in the body 10 is returned through a passage 23 and injector 24 disposed in the inlet passage 18 of the pump. The injector comprises a conical chamber with which the passage 23 communicates at the wider end. Liquid is supplied to the injector by a booster pump 20 through a flow indicator 22.
Patent GB-1438765-A (GB)
Title: Heat-sensitive recording materials
IPC: B41M5/333
Filed: 1972-09-22
Abstract: 1438765 Thermographic materials WIGGINS TEAPE RESEARCH & DEVELOPMENT Ltd 19 Sept 1973 [22 Sept 1972] 44041/72 Heading G2C  A thermographic material comprises a support control with a layer of a binder, fine particles of a basic colour-former, fine particles of a phenol capable of liguifying and/or vaporizing between 60 and 200 C and reacting with the colour former and fine particles of hydrated silica, altapulgite clay and acid-treated montmorillonite clay which react with the colour former on heating to produce a coloured image. Specified colour formers are leuco dyes and spiropyrans. It is stated that this material performs better than the materials of specification 1135540, in that the inorganic material does not melt and flow away from the stylus under high temperature conditions. Comparative examples using non-reactive inorganic figments (talc, kaolin, TiO 2  and CaCo3) are given. Specified phenols are bisphenol A and p-phenyl phenol/formaldehyde resins.
Patent GB-1241469-A (GB)
Title: Water-insoluble azo dyestuffs and process for their manufacture
IPC: C07D207/267
Filed: 1968-09-17
Abstract: 1,241,469. Diperse. monoazodyes. CIBAGEIGY Ltd. 17 Sept., 1968 [19 Sept., 1967], No. 44078/68. Heading C4P. The invention comprises water-insoluble monoazo dyes of formula wherein A is the residue of a diazo component, R 1  is H or an alkyl group which may be substituted, R 2  is an alkyl group which may be substituted, R 3  is a divalent organic residue which completes a 5- to 7-membered heterocyclic ring and X is H, alkyl or alkoxy. The dyes are prepared by azo coupling using appropriate reactants and are used to colour cellulose acetate, polyamide and preferably, polyester fibres in red and blue shades. Specification 1,241,470 is referred to.
Patent GB-927255-A (GB)
Title: Improvements in and relating to disinfectants and bactericides
Inventor: WRIGHT RONALD BARRIE
IPC: C11D1/00
Filed: 1960-12-22
Abstract: A bactericidal composition comprises at least two phenols selected from o-phenyl phenol, a dialkylated monohydric phenol and a trialkylated mono-hydric phenol.  Specified di- and trialkylated phenols are 2,5-xylenol and 2,5-dimethyl-4-tertiary butyl phenol. Desirably the bactericidal compositions are dispersed in solutions of surface active agents e.g. potassium oleate in a solution of water and isopropyl alcohol.
Patent GB-1159715-A (GB)
Title: Improvements in Apparatus for Testing Vehicle Engines and Ground-Engaging Drive Members.
IPC: G01M15/00
Filed: 1966-10-04
Abstract: 1,159,715. External shoe-drum brakes. R. F. OSTRANDER. 4 Oct., 1966, No. 44249/66. Heading F2E. [Also in Division G1] In a chassis dynamometer (see Division G1) a vehicle wheel is supported on a pair of rolls 10 (11) which it drives or by which it can be driven and in order to obtain traction when the vehicle is to be driven on to or off the rolls a one-way external shoe-drum type brake 50 is provided comprising a curved member 51 with a brake lining 52. The member 51 is pivoted to an arm 54, the bottom end of which rests in a " V " channel 55 and the upper portion of the member 51 is longer than the lower portion. When the roll 10 turns in the direction of the arrows it tends to release the brake and so rotates freely: in the opposite direction the brake wedges the roll and prevents rotation.
Patent GB-1101385-A (GB)
Title: Improvements in and relating to plural storey prefabricated buildings
Inventor: STUCKY FRITZ CHRISTOPH
IPC: E04B1/348
Filed: 1963-11-09
Abstract: 1,101,385. Multi-storey prefabricated buildings. ELCON A.G. 30, Oct., 1964 [9, Nov., 1963], No. 44293/63. Heading E1A. In a multi-storey building made up from prefabricated room units each of which is provided at each end with upright load-bearing members 15 adapted to be paired with like members of an adjacent unit and wherein the room units of successive storeys are stacked upon one another with their said members 15 in vertical alignment, each pair of members 15 in a plurality of successive storeys has a stiffener column 16 fixed thereto which extends the height of said storeys. For varied form of stiffener column and manner in which it may be secured to the room units i.e. as by welding, bolting, concrete or epoxy resin adhesive, the Specifications remaining drawings should be referred to.
Patent GB-1286107-A (GB)
Title: Controlled electrical power supply apparatus
Inventor: LUTZ FRITZ NORMAN
IPC: H02P25/10
Filed: 1969-09-09
Abstract: 1286107 Automatic control WARNER & SWASEY CO 9 Sept 1969 [26 Sept 1968] 44480/69 Heading G3R [Also in Division H2] An A.C. source 10 is connected to a D.C. motor 11 through silicon controlled rectifiers 12, 13, which are arranged back-to-back. A sawtooth generator 14 produces signals on lines 15, 16, for controlling the rectifiers 12, 13 respectively, these sawtooth signals being inverted and phase displaced by 180 degrees with respect to each other. A summing network 17 receives a reference signal on line 18 and a feedback signal on line 19 representing the speed of the motor. The resultant error signal is combined with a level adjustment signal and the sawtooth signal on line 15. When the instantaneous value of the error signal plus the sawtooth signal exceeds the adjustment signal, a level detector 20 triggers the rectifier 12 provided that is anode is positive with regard to its cathode at the time. A summing network 21 is similarly associated with a level detector 22 for controlling the rectifier 13. The effect of back EMF having a polarity opposed to the source voltage is retard the firing time and to advance the turn-off time of the rectifier 12. If the motor rotates in the opposite direction, as a result of rectifier 13 being fired or due to the motor being driven by the load, the motor is stopped or driven in the forward direction by firing the rectifier 12. The back EMF then aids the source voltage to advance the firing-time of the rectifier 12 into the preceding negative half-cycle and to retard the turn-off time into the following negative half-cycle. When the error and back EMF signals are both at zero, the motor receives alternate pulses of opposite polarity and short duration so that it does not rotate. Alternatively, the level adjustment signals may be altered to provide a dead-band effect. In modifications, the variable controlled may be other than speed. For example, the load may consist of heating and cooling elements for stabilizing temperature, and two rectifiers providing bidirectional control.
Patent GB-1523186-A (GB)
Title: Coppercarbon fibre composites and process for preparation thereof
IPC: C22C47/14
Filed: 1976-10-27
Abstract: 1523186 Cu; carbon fibre composite HITACHI Ltd 27 Oct 1976 [29 Oct 1975]  44700/76 Heading C7D A non-directional carbon fibre - copper matrix composite comprising randomly arranged carbon fibres and a copper matrix in which the carbon fibres are embedded wherein the carbon fibres are bonded together by an additive forming a carbide where it contacts the fibres, the amount of carbon fibre present being at least 20 volume per cent based on the total composite volume. The additive may be one or more of Ti, Zr, Nb, V, Cr, Mo and W present in an amount of at least 3 volume per cent. The composite may be prepared by mixing and agitating carbon fibres of aspect ratio of at least 200 with a liquid medium e.g. methyl cellulose, water or polyvinyl alcohol, copper and additive in powder form, removing the liquid medium and hot pressing in a non-oxidizing atmosphere at a pressure of at least 50Kg/cm<SP>2</SP> and a temperature between the recrystallization temperature and melting point of copper. Alternating carbon fibres coated with copper may be added direct to the liquid medium.
Patent GB-1154520-A (GB)
Title: Improvements in or relating to Liquid Levelling Indicating Devices
IPC: G01F23/36
Filed: 1967-10-04
Abstract: 1,154,520. Fluid level indicating devices. ALFRED TEVES G.m.b.H. 4 Oct., 1967 [5 Nov., 1966], No. 45242/67. Headings F2E and F2F. [Also in Division G1] In a device for indicating liquid level in containers having several, preferably two, separate chambers, such as make-up reservoirs for motor vehicle hydraulic dual circuit brake systems, floats, disposed one in each chamber A, B are each supported by an arm 4, 5 pivotally mounted on a common shaft 6 and each arm 4, 5 at the end remote from the float 2, 3, is provided with a cam 7, 8 to act on a thrust plate 9 provided on the end of a pin 10 extending out of the end of the container. The pin 10 has a collar 11 which co-operates with spring contacts 12, 13 to close a circuit when the liquid level in one or both chambers A, B falls.