baber/WOPTO huggingface dataset:
Patent GB-731677-A (GB)
Title: Improvements relating to luminescent materials
Inventor: ANDERSON JAMES THOMSON
IPC: H05B33/14
Filed: 1952-03-28
Abstract: 731,677. Electroluminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 20, 1953 [March 28, 1952], No. 8005/52. Class 39 (1). Ammonium phosphate with or without an alkali chloride is used as the flux in the production of electroluminescent zinc oxide, zinc sulphide or zinc cadmium sulphide activated by copper. In an example 5-50 per cent of diammonium hydrogen phosphate is added to zinc sulphide containing 2-5 per cent of ammonium chloride with the copper activator 0.05-0.5 per cent, fired twice and washed in glacial acetic acid and sodium cyanide. The material suspended in nitro-cellulose is coated on a metal support and dried, and a transparent conductive layer applied by cathodic sputtering. The latter may be supported or protected by a glass or plastic layer.
Patent GB-1292218-A (GB)
Title: Process for regenerating electrolytic solutions obtained in the electrolytic production of manganese dioxide
Inventor: PREISLER EBERHARD
IPC: C01G45/02
Filed: 1970-02-19
Abstract: 1292218 Regeneration of manganese electrolytes KNAPSACK A G 19 Feb 1970 [20 Feb 1969] 8029/70 Heading C7B In the regeneration of an aqueous electrolyte containing manganese sulphate, calcium sulphate and sulphuric acid for use in the production of manganese (IV) at elevated temperature, exhausted electrolyte is withdrawn from the cell, replenished with crude manganese (II) oxide or manganese (II) carbonate, excess sulphuric acid present is neutralized, and the regenerated electrolyte thus formed is cooled to a temperature at which the calcium solubility is lower than that of the cell electrolyte and matter precipitated is isolated therefrom prior to recycling to the electrolytic cell.
Patent GB-739189-A (GB)
Title: Improvements in or relating to sockets for ball joints, apparatus for manufacturing said sockets and method of making said sockets
IPC: F16C11/06
Filed: 1953-03-24
Abstract: 739,189. Ball joints. THOMPSON PRODUCTS, Inc. March 24, 1953 [Sept. 4, 1952], No. 8053/53. Class 65(2). [Also in Group XXII] A socket for a ball joint comprises a housing 1 having a first large aperture 8 and a second smaller aperture 9 therein, said first and second apertures being longitudinally aligned and connected at adjacent edges, and the edges of said first aperture comprising raised reinforcing portions 3 whereby the minimum cross-sectional area of said housing is in the region of the said second aperture. The reinforcing portion may encircle the entire key-hole shaped aperture formed by the apertures 8 and 9 as shown in Figs. 13 and 14.
Patent GB-472241-A (GB)
Title: Improvements in or relating to reciprocating ram pumps
IPC: F16C3/18
Filed: 1936-03-17
Abstract: 472,241. Eccentrics. MILLS, J. E., MILLS, R. G., JENKINS, J. DAVIES-, and OWEN, T. F. March 17, 1936, No. 8118/37. Divided application. [Class 122 (i)] In an eccentric shaft for operating three or more pump rams through the intermediary of ball or roller bearings 2, 2a, the inner eccentrics 3 are formed integral with the shaft, but the outer eccentric 5 is composite, to permit the passage of the bearing for the adjacent inner eccentric. For this purpose the inner eccentric is initially of a width sufficient to include the outer eccentric and a collar 8 is secured thereon. The shaft is then mounted on the centre C-C and the shaft and collar are then turned to form the outer eccentric, comprising a shaft portion 5 of oval section and a crescent-shaped portion 6 carried by the collar 8.
Patent GB-737025-A (GB)
Title: Copolymers of vinyl chloride and 1:1-dichloro-ethene
IPC: C08F214/06
Filed: 1953-03-25
Abstract: Copolymers are prepared by copolymerizing in aqueous emulsion in the presence of a regulating agent vinyl chloride, vinylidene chloride, and another copolymerizable vinyl compound which may be styrene, a copolymerizable derivative of styrene, an acrylic acid ester, a methacrylic acid ester or acrylonitrile, the vinyl chloride and vinylidene chloride being each used in quantities amounting to at least 15 per cent of the combined weight of the copolymerizable substances, and the other copolymerizable vinyl compound being used in quantities amounting to 1 to 25 per cent, preferably about 5 per cent, of the combined weight of vinyl chloride and vinylidene chloride.  The regulating agent may be a dialkyl, e.g. diisopropyl, xanthogen disulphide, chloroform or carbon tetrachloride, and the vinyl chloride and vinylidene chloride are preferably used in equal proportions by volume.  The reaction may be catalysed by potassium persulphate, as emulsifier there may be used a sodium salt of a longchain paraffin sulphonate or a paraffin sulphonate, and sodium pyrophosphate may be added to stabilize the emulsion.  The polymers are soluble in aromatic solvents, ketones, esters and chlorinated hydrocarbons and are compatible with linseed oil, linseed oil varnish, wood oil, alkyd resins, colophony/maleic acid resins and xylene/formaldehyde resins and chlorinated rubber, and may be used for the production of films and coatings.  The polymerization latices may be used as emulsion lacquers after addition of plasticizers and dyestuffs.
Patent GB-765288-A (GB)
Title: Improved control valve for circulatory power steering mechanisms for motor vehicles
IPC: B62D5/087
Filed: 1955-03-22
Abstract: 765,288. Vehicle power steering. GENERAL MOTORS CORPORATION. March 22, 1955 [June 14, 1954], No. 8282/55. Addition to 748,115 [Group XXIX]. Class 79(5). [Also in Group XXIX] A control valve for a fluid-pressure power steering mechanism according to the parent Specification is modified in that the two chambers of the dashpot are provided in a single cylinder in the ported casing and are separated by a piston connected to the valve spool and containing the restricted passage. In an embodiment, the roller arm from the steering gear box is connected by a ball joint 42 to a spindle 92 which, besides carrying the valve spool 110, carries a piston 94 working in a chamber at the end of the valve casing 70. The latter is joined to the drag link 44. A restricted passage 96 interconnects both sides of the piston and fluid is supplied to the cylinder from the main inlet 140, through a passage 144 in the spool, the slight clearance between the spool and the spindle 92, and through a passage 97 in the piston stem. Any fluid which leaks passes the seals of the piston can flow to atmosphere through passages 106, 108. The valve is centralized by a spring 114 which abuts against a piston 112 and a washer 116, the two latter members abutting against shoulders on the spool and on the stem 92. Oil leaking between the spool and the stem 92 can also flow into the chamber 126 housing the spring 114, and due to the displacement of fluid as the valve is moved in either direction and also to the differential areas of the various members in the chamber 126, the operator is provided with " feel " proportional to the steering resistance in whichever direction the turn is made. Vent apertures 102, 128, normally closed by stoppers, permit air to escape from the various chambers while they are being filled with oil.
Patent GB-215908-A (GB)
Title: Improvements in sliding windows for use on vehicles
IPC: E05F11/38
Filed: 1923-03-23
Abstract: 215,908. Standard Motor Co., Ltd., and Maudslay, R. W. March 23, 1923. Vehicle windows.-A celluloid or like flexible window is freed from the frame at the lower edge by the slits A<3>, which permit the movement of the channel B<3> over the fence rail under the pressure of leaf springs D. The strap is attached to the channel B<3>. Rattling is prevented by the springs D.
Patent GB-448097-A (GB)
Title: Improvements in or relating to film television
IPC: H04N5/073
Filed: 1934-10-18
Abstract: 448,097. Television. BROWNE, C. O., 29, Monk's Drive, West Acton, and CORK, E. C., 50A, Kenilworth Road, Ealing, both in London, and MANIFOLD, M. BOWMAN-, Heathcot, Worplesdon Station, Surrey. Oct. 18, 1934, No. 8299 /36. Divided out of 448,031. [Class 40 (iii)] Electric impulses 35 are fed to one grid 42 of a two-grid valve 39, and switching impulses 43 are fed to the other grid 44 so that the synchronizing impulses 35 are only able to pass to the output anode circuit 40 in the presence of a switching impulse. The valve is a hexode and the switching-impulses are fed to the inner controlling-grid and the synchronizing impulses to the outer controlling- grid. A further valve 38 feeds line-synchronizing impulses 34 to the common anodecircuit load 40. The second valve may also have two grids, the two valves being operated alternately by switching impulses. Specifications 438,905, [Group XX], 442,938, and 448,031 are referred to.
Patent GB-1379244-A (GB)
Title: Marine propulsion unit
IPC: F02D31/00
Filed: 1972-03-22
Abstract: 1379244 Control of speed P B MATHEWS 22 March 1972 [31 March 1971] 8330/71 Heading G3R The electrical load of a generator (not shown) driven by a diesel or spark ignition engine also driving the propeller of a boat is reduced by regulating its field via field controller 48 when the engine speed drops below a desired speed by more than a predetermined amount, zero or finite. As shown in Fig. 1, the end 32 of a lever 16 engaging engine driven governor 10 moves between a fuel control valve 34 and generator load control 36. Engine speed increase causes end 32 to descend, progressively closing a valve in fuel line 42, speed decrease, via crank 44, potentiometer 46 and field controller 48 causing generator load shedding. Fuel and generator control may take place successively, with or without a control speed gap where lever end 32 is free, as engine speed changes, or may operate concurrently for a given speed range. Desired speed is set by arm 26 adjusting the extension of spring 24 to vary its biasing force. As shown in Fig.4, for generator field regulation a speed sensor 50, which may be the generator itself if an A.C. one, or a detector circuit coupled inductively to the engine ignition circuit, feeds a unit 52 whose output, a D.C. signal proportional to engine speed, controls the conduction of transistor T whose collector resistor R1 is variable and coupled to speed control 26 by a pre-set linkage defining control characteristics and hence, via thermistorresistor network R 4 , R 3 , R 5  the voltage at generator field control input F. Resistor R6 is pre-set to suit the battery, connected between terminals A-B, and thermistor R<SP>4</SP> allows for change of battery characteristics with temperature. Resistor R may take the form of a meter indicating engine speed.
Patent GB-429216-A (GB)
Title: Improvements in or relating to protective devices for electrical traction systems
IPC: H02H7/125
Filed: 1934-03-16
Abstract: 429,216. Rectifiying alternating-current. BROOKS, R., Ivyhurst, Charlton Drive, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. March 16, 1934, No. 8395. [Class 38 (ii)] In a rectifier installation feeding a regenerative load such as a traction system Ao, Bo, in order to prevent excessive rise in voltage at the output terminals A, B of the rectifier there is provided an automatic switch E operative under regenerative conditions to connect in parallel with the usual resistance M (designed to maintain the rectifier operative) a temporary load TL adequate to dissipate the reverse current energy. The closing coil W of the switch E is energized by closure of a reverse current relay R having a voltage coil U and a current coil C normally in opposition. Rise in voltage under regenerative conditions causes the relay to close, and the reverse current flowing upon closure of the switch E results in the two coils C, V becoming additive to maintain the relay closed so long as reverse current persists.
Patent GB-958255-A (GB)
Title: Solenoid operated switch unit
Inventor: CANT THOMAS
IPC: H01H51/10
Filed: 1961-03-08
Abstract: 958,255. Electrically tripped switches. PYE Ltd. March 2, 1962 [March 8, 1961], No. 8490/61. Heading H2B. A switch unit comprises a solenoid 5 which when energized moves a slidable actuator bar 2 until it is latched by a latching spring 6, and a delatching solenoid 8 which when energized removes spring 6 from the bar 2 which is then returned to its initial position by spring means, movement of the bar 2 causing actuation of groups of contact spring sets B1 . . . B8, and the movable spring contacts 15 themselves providing the return spring means. Bar 2 carries spring clips 13 holding actuating cords 12 of insulating material for moving the contacts 15 initially. Latching spring 6 is engaged by a pivoted cam member 9 operated upon energization of solenoid 8. Normally closed contacts C, operated by this latching mechanism, control solenoid 5, while changeover contacts C2 control the delatching solenoid 8, the two solenoids being energized alternatively. Three switch units are connected together for sequential operation (Fig. 5, not shown), the closing of contacts C3 in the first switch unit completing the energizing circuit to solenoid 5 of the next switch unit, and so on.
Patent GB-345806-A (GB)
Title: Methods or processes of repairing spectacle-frames and other articles made of real or imitation tortoiseshell, applicable also to the covering of the metallic parts of spectacles and eyeglasses
IPC: B29C61/06
Filed: 1930-03-18
Abstract: Broken non-metallic articles such as cigarette holders are repaired by splinting or joining together the ends of the broken parts by means of a tube or sleeve of gelatine toughened by treatment with formaldehyde &c.  The tubes are preserved in their treated state and in a soft and pliable condition by storage in a weak solution of formaldehyde.  The tube is applied in a wet and plastic condition and is allowed to dry and become self-securing by shrinkage and hardening.
Patent GB-609673-A (GB)
Title: Improvements relating to spring controlled mechanism
IPC: E06B9/66
Filed: 1946-03-20
Abstract: 609,673. Springs. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., KERSHAW, N. G., and MASON, R. March 20, 1946, No. 8631. [Class 108 (iii)] [Also in Group X] A spring-controlled mechanism comprises a body to be moved in a predetermined path against variable resistance coupled to both ends of a spring so that as the body moves both ends of the spring automatically move in the same direction and relatively to each other. As shown, the shutter 1 is wound on the drum 2 which has a hollow hub 3 rotatably mounted on a coaxial shaft 4 supported on fixed bearings 5, and which is coupled to the shaft 4 by a tension spring 6 surrounding the shaft and secured at one end to the hub at 7 and at the other to the shaft. The shutter is guided in grooves 8 and is connected at the top end to a flexible connection 9 which passes over the pulley 10 and is secured to the pulley 11 rigidly mounted on the shaft 4. The shaft is first rotated relative to the hub 3 and locked by the pin 12 which is removed when the connections 9 are in place. As the blind is unwound, the spring exerts a large upward pull via the pulley 11 of constant small diameter, and a smaller downward pull via the drum of initially large diameter, but this downward pull increases as the drum diameter decreases, therefore the upward movement of the blind is assisted to a decreasing extent by the spring. The pulleys 11 may be replaced by coned or other shaped pulleys to provide any desired variation in the effect of the spring. The invention is applicable to horizontal shutters &c.
Patent GB-723668-A (GB)
Title: Machine for recovering fibres from waste resulting from decorticating sisal and other fibres
IPC: D01B1/14
Filed: 1952-04-04
Abstract: 723,668. Opening and cleaning fibres. ROBEY & CO., Ltd.. (Corum, C.). June 23, 1953 [April 4, 1952], No. 8631/52. Class 120 (1). Fibres from dried sisal decorticating waste are opened and cleaned in a machine comprising an entrance chamber 1 having a shaker 2 operated by a cam or eccentric 3, partitions 5, 6 having slots through which a small arc of a number of rotating circular saws 8 projects, a collecting vessel 9 leading to an outlet pipe 10, and a fan 11 the outlet nozzle 12 of which is narrowed at 13 to direct an air blast onto the saw teeth. The waste is shaken in chamber 1, and some of the fibres are drawn out by the saw teeth and pulled first through the slots in partition 5 and then through similar slots in partition 6 so that the fibres receive a scraping action. The air blast through nozzle opening 13 blows the fibres off the saw teeth into vessel 9 and down into outlet pipe 10.
Patent GB-541183-A (GB)
Title: Improvements in and relating to co-ordinate measuring machines
IPC: G01B5/008
Filed: 1940-05-14
Abstract: 541,183. Measuring-machines. HILGER, Ltd., A., and DOWELL, J. H. May 14, 1940, Nos. 8650/40 and 2768/41. [Class 106 (ii)). A machine in which measurements in two directions at an angle can be made comprises a carriage mounted on a base, the direction of movement of the carriage being controlled by an intermediate piece with two straight edges at the desired angle bearing against corresponding straight edges on the carriage and base respectively. Mounted, on the plane surface 2 of a base 1 are plates 3 which support large balls 5 supporting the carriage 6, and directly on the base 1 are three sets of balls 9 which support the intermediate piece 8 which is made of upper and lower plates secured together cross-wise. Mounted on the base 1 is a straight edge 10 against which through balls 7 bears the cross-piece 11 of the intermediate piece 8 pressed home by springs 13 on the base bearing against a bar 12 acting through balls 7 on the other edge of the crosspiece 11. An upper plate 14 forming part of the piece 8 is provided with working surfaces 15 at 90 degrees to the working surfaces on the crosspiece 11. Balls 15<SP>1</SP> are interposed between the surfaces 15 and the working surface 152 provided on a carriage plate 16 pivoted at 17 to the underside of the carriage and adjustable about the point 17 by a screw 18 mounted on the carriage 6 co-operating with a lever 19 pivoted to the carriage and engaging a pin 20 on the plate 16. The carriage plate 16 is kept in contact with the plate 14 by two levers 21, springs 22 and rollers 23 provided underneath the carriage 16, the rollers bearing against a bar 24 attached to the upper plate 14 of the piece 8. Screws 28 serve to clamp the plate 16 to the carriage 6 when adjusted. The movements of the carriage in directions at right angles are controlled by micrometers 25, 26 and the carriage 6 is provided with work holders 27.
Patent GB-858884-A (GB)
Title: Improvements in or relating to devices for filling cartridge cases with explosive material
IPC: F42B33/00
Filed: 1959-03-12
Abstract: 858,884. Filling cartridge cases. WASAGCHEMIE A.G. March 12, 1959 [March 12, 1958], No. 8656/59. Class 9(1). Gelatinous explosive fed by parallel screw conveyers 1 from a hopper 10 through a converging outlet 4 is carried by parallel conveyers 2, arranged at right angles to conveyers I, through filling tubes on to which the cartridge cases are slipped. The pitch of the threads of the conveyers 1 is such that the spaces between successive turns are of equal volume over two-thirds of the conveyer length and over the remaining third the volumes progressively decrease in a ratio between 1À25:1 and 1À6:1. Drive pulleys 12, 15 on the shafts 9, 13 of the screws 1, 2 respectively may be driven by means of an electric motor and the rates are so controlled that the rate of supply through the housing 11 is the same as the rate of discharge into the cartridges. Should excessive back pressure occur in the tubes 3, excess explosive can escape through an opening 5, and a cut-out 20 for the drive is operated by axial thrust of the shafts 13.
Patent GB-1055665-A (GB)
Title: Improved electric shunt device
IPC: H05B39/10
Filed: 1964-03-02
Abstract: 1,055,665. Cut-outs. SHIH-WOO LOU. March 2, 1964, No. 8681/64. Heading H2G. [Also in Division H1] A shunt device adapted to be connected in parallel with an electric lamp in a set of series - connected decorative lamps comprises one or more oxide coated metal plates 11 disposed between and in spaced relation to the terminals 14<SP>1</SP>, 16 of the device, the space between at least one terminal and the adjacent plate containing granules of electrically conducting material 13 which are movable relative to the plate. The plates are preferably made of aluminium with a coating 11<SP>1</SP> of aluminium oxide, and the material 13 may be metal, graphite or composition carbon. A resistor 18 of the wire wound, composition carbon, deposited metal or carbon film, or cracked carbon type can be inserted, as well as the granules, in one of the spaces.
Patent GB-1025470-A (GB)
Title: Aquarium
IPC: A01K63/00
Filed: 1965-03-02
Abstract: 1,025,470. Aquaria. J. J. CREUS. March 2, 1965 [March 27, 1964], No. 8767/65. Heading A1A. An aquarium is made from transparent plates stuck together with transparent adhesive.
Patent GB-765728-A (GB)
Title: Process for the production of 3- or 5-amino-1, 2, 4-triazoles
IPC: C07D249/14
Filed: 1955-03-25
Abstract: 3- or 5-Amino-1 : 2 : 4-triazole and 5- or 3-(C1-C3)-alkyl derivatives thereof are produced by heating in an organic solvent capable of entraining water an acyl-aminoguanidine or salt thereof, or a mixture of an aminoguanidine salt with a fatty acid containing not more than 4 carbon atoms, the water formed during the reaction being continuously removed together with the entraining agent by distillation.  Specified entraining agents are toluene, xylene and iso-octane.  Specified fatty acids are formic, acetic and butyric acids.  The reaction is preferably conducted at 100-150 DEG  C. and in presence of basically reacting substances such as amines (e.g. dimethylaniline).  Amino- and acylamino-guanidine hydrochlorides and sulphates yield the corresponding aminothiazole hydrochlorides and sulphates, from which the free bases are obtained by further treatment; aminoguanidine bicarbonate, acylaminoguanidines and bicarbonates thereof yield the free bases directly.  The examples describe the preparation of 3-amino-, 3-amino-5-methyl- and 3 - amino - 5 - n - propyl - 1 : 2 : 4 - triazoles.  Specification 520,394, [Group IV], is referred to.
Patent GB-173713-A (GB)
Title: Improvements relating to lubricating oil pumps
IPC: F16N13/00
Filed: 1921-03-22
Abstract: 173,713. Williams, W. L. March 22, 1921. Rack-and-pinion actuated pumps. -In a lubricating- pump of the type described in Specification 138,695, in which a diametrically-arranged piston c is reciprocated by a fixed cam d in the rotating cylinder b, the driving-gear for the cylinder comprises a toothed annulus e attached to the cylinder and actuated from an eccentric g on the driving-shaft h through a slightly smaller externallytoothed wheel f held non-rotatably by a pin j screwed in the pump casing a.