baber/WOPTO huggingface dataset:
Patent GB-1287952-A (GB)
IPC: G05D11/13
Filed: 1969-06-12
Abstract: 1287952 Dosing apparatus RAINBOW VALVE CO Ltd 12 June 1970 [12 June 1969] 29731/69 Heading B1C In apparatus for mixing a liquid additive with a bulk liquid the latter is circulated by a centrifugal pump 8 in a closed circuit comprising a reservoir I and pipes 6, 9; and a peristaltic pump 11 meters the additive to the inlet 7 of the centrifugal pump through a sight glass 8. The reservoir 1 is replenished by a float valve 3, 4, and its outlet 5 leads to a drinking trough for a large number of hens. In practice drinking mixture will be withdrawn from the trough and the reservoir at a substantially constant rate and the proportion of additive in the mixture is constant. The centrifugal pump and the peristaltic metering pump are driven by a common motor 23 which may be controlled by the float valve so that it operates only when the reservoir is being replenished.
Patent GB-1295132-A (GB)
IPC: B32B15/08
Filed: 1970-04-13
Abstract: 1295132 Metal-plastics laminate AUSTRALIAN IRON & STEEL PTY Ltd and UNION CARBIDE AUSTRALIA Ltd 13 April 1970 [14 April 1969] 17544/70 Heading B5N A method of producing a metal-plastics laminate wherein the metal is tinplate, tin-free steel (chromium type), chemically treated steel plate or plain steel sheet and the plastics element is polyethylene, ethylene α-olefine copolymers or blends thereof, comprises bringing the metal and the plastics element, after a bonding surface of the plastics element has been treated by corona discharge, exposure of a thin molten film to air or ozone or an activated gas plasma, treatment with a chemical cross-linking agent or treatment with an oxidizing fluid, into contact under pressure at a temperature sufficient to at least soften the plastics element, and thereafter subjecting the laminate to an annealing operation to finalize adhesion conducted at a temperature at or above the melting point of the plastics element in the range 150- 250‹ C. for a period not exceeding 30 seconds, if the metal has not been preheated to give it a heat content sufficient to finalize adhesion at or above the melting point of the plastics element without recourse to the annealing operation. The plastics element may be applied to one or both sides of the metal. The laminate may be made into containers.
Patent GB-1295195-A (GB)
IPC: B21D45/06
Filed: 1971-04-19
Abstract: 1295195 Stamping ALUMINUM CO OF AMERICA 19 April 1971 [17 March 1970] 23567/71 Heading B3Q  A cup-shaped container 20 is stripped from a reciprocal mandrel 16 in an ironing press comprising an assembly 10 of ironing rings and spacers 14 by the introduction of air under pressure into the container interior, via passage 26 in the mandrel, just prior to the container contacting a stop member 22, e.g. in the form of a resilient pad, positioned adjacent the exit end of the ironer assembly 10. The mandrel moves a drawn cup 18 through the assembly 10 to thin and elongate the cup side wall and so form the required sized container 20. Introduction of the mandrel into the drawn cup 18 is facilitated by venting the interior of the cup by way of a system including the passage 26, air line 28, vent line 32, a vacuum source 38 and a valve 40. A solenoid valve 24 is provided to connect the line 28 and passage 26 with a pressure line 30 including a storage tank 34 and compressor when the stripping operation is to be effected. As a safety measure mechanical strippers 42 may be provided in the assembly 10 in the event of the air pressure failing to effect the stripping.
Patent GB-1295242-A (GB)
IPC: F42B12/58
Filed: 1967-09-05
Abstract: 1295242 Projectiles FRANCE ARMED FORCES MINISTER OF 5 Sept 1967 [1 Dec 1966] 40601/67 Heading F3A A ballistic missile head for projecting a plurality of elementary projectiles 8 comprises a case 5 for housing the projectiles and a cap 1 for closing the case, the cap 1 containing a capsplitting means 3 and a fuse 2 for effecting splitting of the cap and the ejection of the projectiles 8, the cap 1 together with the fuse 2 and the cap-splitting means 3 constituting asub-assembly for connection to another sub-assembly comprising the case 5, a base-plate 6, the projectiles 8 and fire transmission means arranged to effect ejection of the projectiles in response to the firing of the fuse, a delay-action device 12 being provided to effect that the ejection of the projectiles 8 follows the splitting of the cap 1 after a predetermined delay. Secured to the front of the base-plate 6 are guide tubes 7 each containing a stack of the projectiles 8, a hollow piston 9, and a small cartridge-bag 10 filled with a powder propellant, also an axial fire transmission tube 11 provided with the delay-action device 12. The rear face of the base-plate 6 has a central recessed portion 13 in which a firing disc 15 is retained by a washer 14. The delayaction device 12 comprises in succession a stick of firing compound adapted to be struck by the projections and the shock wave produced by the detonation of the charge 4 of the fuse 2, a stick of delay-action compound, and a firing- compound element of which the flame jet propagates through the tube 11 towards the firing disc 15. The firing disc 15 consists of a plastic or cardboard disc to which is secured a celluloid disc and a plurality of fuse-matches disposed according to a grid-like pattern. The detonation of the charge 4 directly fires the cap-splitting means 3, whereby the dispersed fragments of the cap 1 free the outlet aperture of the case 5. The combustion of the delay-action device 12 is started and after a predetermined time-lag has elapsed to permit the ejection of the fragments of the cap 1, a flame jet is propagated through the tube 11. This impinges against the firing disc 15 the combustion of which ignites the cartridge-bags 10. The projectiles 8 are thus projected out from the tubes 7.
Patent GB-1297447-A (GB)
IPC: C10G32/02
Filed: 1971-03-26
Abstract: 1297447 Electric treater for oils PETROLITE CORP 26 March 1971 7961/71 Heading C5E An electric treater comprises a container having an inlet 16, an outlet 20, an electric treating chamber having electrodes 60 and 70, and two spaces 30 and 30<SP>1</SP> bounded by foraminous members 31, 32, 31<SP>1</SP> and 32<SP>1</SP>. The spaces 30 and 30<SP>1</SP> contain a material such as open-pore polyurethane foam, stainless steel wool, cotton, polytetrafluoroethylene, polytrifluoroethylene, polypropylene, solid caustic, spheres of glass or metal, rock salt, clay or bauxite. The inlets 35 and 35<SP>1</SP> can be used to pass the material through the spaces 30 and 30<SP>1</SP>. The electrodes 60 can be corrugated and these and the container 10 are earthed; the electrodes 70 comprised spaced rods disposed in planes between the electrodes 60 and are connected to a high voltage A.C. or D.C. source to maintain a field, e.g. of 4-10/TV per inch. The container is horizontal or inclined at up to 30 degrees to the horizontal. Each electrode can be in a vertical or horizontal plane. The oil is passed through a distributer 18 and then through a pretreat electrode 50 which can be foraminous or made of concentric rings; the oil from the pump 45 can be mixed with a liquid, e.g. water, from 46. The apparatus can be used to remove water from a jet fuel before entering a storage tank or on passing into a tank of a plane and to remove residual acid from an acid treated 150-350‹ F. naphtha.
Patent GB-1307884-A (GB)
Title: Glyceride oil refining processes
IPC: C11B3/06
Filed: 1970-05-07
Abstract: 1307884 Fatty acids ALBRIGHT & WILSON Ltd 4 May 1971 [7 May 1970 28 Aug 1970] 22165/70 and 41619/70 Heading C2C [Also in. Division C5E] Free fatty acids are recovered from glyceride oils by mixing the oil with a dilute aqueous solution of an alkali together with an alkalimetal, alkaline-earth-metal or ammonium salt of benzene-, toluene- or xylene-sulphonic acid, the concentration of sulphonate and its molar ratio to soap being such that the mixture comprises an oil phase and a homogeneous aqueous phase, and separating these phases. Oils that may be treated are vegetable and marine (e.g. herring) oils and animal oils, including tallows. The aqueous layer is acidified, the fatty acid recovered and the aqueous phase containing sulphonate recycled. Part of this aqueous phase may be used to dilute the acid for the acidification.
Patent GB-1308357-A (GB)
Title: Solvent compositions
IPC: C11D7/32
Filed: 1970-10-05
Abstract: 1308357 Solvents containing tetrachlorodifluoroethane IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Sept 1971 [5 Oct 1970] 47146/70 Heading C5D A solvent composition for cleaning articles such as printed circuit boards contaminated with soldering flux comprises an azeotropic mixture of tetrachlorodifluoroethane with a C 1 -C 3  nitroalkane. Azeotropic mixtures of 1,1,2,2-tetrachloro-1,2-difluoroethane with particular nitroalkanes contain 17% by wt. of nitromethane, 9% by wt. of nitroethane, 1À3% by wt. of 1-nitropropane and 4% by wt. of 2-nitropropane respectively. Optional additions are other solvents and cationic, anionic and nonionic detergents.
Patent GB-1321422-A (GB)
Title: Vehicle drum brakes
IPC: F16D65/52
Filed: 1969-08-28
Abstract: 1321422 Automatic adjusters for internal shoe-drum brakes GIRLING Ltd 27 Aug 1970 [28 Aug 1969] 42810/69 Heading F2E An internal shoe-drum brake including a pair of opposed brake shoes and an automatic wearadjuster includes also a device for mechanically transmitting shoe movements to the wearadjuster, the transmitting device comprising a flexible sheathed cable, the cable and its conduit being each connected to one of the shoes, and the mechanical transmitted " signal " comprising the sum of the movements of the shoes during one brake application. As shown in Figs. 1 and 2, the headed end 11 of a flexible cable 7 is received in a slot 9 provided in a clip 1 having slidable engagement with a pin 2 secured to a brake shoe 2; the clip is urged outwardly into contact with pin 2 by a pre-stressed compression spring 6. A ferrule 12 secured to the end of a conduit 8 in which cable 7 slides is anchored to a clip 3 which has slidable engagement with a pin 4 secured to the other brake shoe 21; clip 3 is urged outwardly by another pre-stressed compression spring 6. " Jack-knifing " is prevented by a U-shaped guide 14, the loop of which is engaged about pin 4, and the legs of which pass through holes in the flange of clip 3 and the end wall of clip 1. In operation, on each brake application, the shoes separate, so that cable 7 is withdrawn from conduit 8 by a distance equivalent to the sum of the movements of the two shoes. Preferably the opposite end of the conduit 8 is secured to the housing of an automatic wearadjuster (not shown), and the opposite end of the cable is secured to an input member of the adjuster. The adjuster is of the kind which requires a succession of such incremental input signals before it effects an adjustment, and may be that described in Specification 1,308,442. If the shoe movement is extreme, so that the limit of relative movement of cable 7 and conduit 8 is reached, the springs 6 yield. In Figs. 3 and 4, clip 1 has only pivotal connection with pin 2, while clip 3 has slidable connection with the same pin, for guiding purposes only; clip 3 is connected to pin 4 by a prestressed tension spring 17. This arrangement ensures alignment of cable end 7 with conduit end 8.
Patent GB-1326366-A (GB)
Title: Photographic process
IPC: G03C1/725
Filed: 1969-11-28
Abstract: 1326366 Photographic metal images KODAK Ltd 26 Nov 1970 [28 Nov 1969] 58294/69 Heading G2C A metal pattern in a layer comprising a patternwise distribution of the metal and a complimentary distribution of a first compound of the metal in a low equivalent oxidation state, is fixed by treating with a solution of an oxidizing agent which oxidizes the first compound to a second compound in which the metal is in a high oxidation state and which is more soluble in the solution than the first compound so that it is removed. Preferably the first compound is indium bromide, cuprous oxide or bismuth subchloride and the oxidizing agent is an alkali-metal ferricyanide, dichromate, persulphate, chlorate, perchlorate, iodate, periodate, bromate, iodine, bromine or chloranil. In the case of cuprous oxide the fixed layer is preferably after-treated with an alkaline solution of a reducing agent.
Patent GB-1329080-A (GB)
Title: Yellow colour coupler compounds containing two alpha-acylacetamide  residues and their use in photographic materials
IPC: G03C7/36
Filed: 1971-08-25
Abstract: 1329080 Aromatic colour couplers containing two or four amide groups KONISHIROKU PHOTO INDUSTRY CO Ltd 25 Aug 1971 39932/71 Heading C2C [Also in Division G2] The invention comprises compounds of the formula wherein X is an alkyl group, Y is an alkyl, alkoxy or aralkyl group, Z is an aromatic amino group, n is 0 or 1, and when n is 1, A is a divalent organic group. Examples are given for the preparation of the compounds. In Example (1), α,α,#,#-tetramethylpimelic acid chloride is reacted with the sodium derivative of methyl acetoacetate to give methyl α,α,#,#-tetramethylpimelyl-bisacetate; this diester is then reacted with 2-chloro-5-[α-(dodecyloxycarbonyl) methoxycarbonyl]-aniline to give a coupler of formula In Example (2), Example (1) is repeated using p-xylylene-bis dimethylacetyl chloride and 2- chloro-5-undecylcarbamoylaniline in place of the acid chloride and aniline derivative respectively to give a coupler of formula In Example (3), #-(4-nitrophenyl)-α,α-dimethyl propionyl chloride is reacted with the sodium derivative of methyl acetoacetate to give methyl #-(4-nitrophenyl)-α,α-dimethylpropionyl acetate, this compound is then reacted with 2,5-dichloroaniline to give #-(4-nitrophenyl)-α,α-dimethylpropionylaceto-2,5-dichloroanilide, this compound is then hydrogenated over Raney nickel to give #-(4-aminophenyl)-α,α-dimethylpropionylaceto-2- 5-dichloroanilide, and this compound is then reacted with adipic acid chloride in acetonitrile to,give a coupler of formula Other compounds of the above general formula may be obtained by analogous methods. They are useful as yellow colour couplers.
Patent GB-1331333-A (GB)
Title: Continuous and semi-continuous casting of metal ingots
IPC: B22D11/07
Filed: 1971-05-20
Abstract: 1331333 Continuous casting V A LIVANOV A A ROGOZINSKY M M GUDIMOV A I SKUCHILOV V P GOROKHOV and E Y BEIDER 20 May 1971 15968/71 Heading B3F [Also in Divisions B2 and C7] The inner surface of a mould 1 is lined with a material 4 such as P.T.F.E. which vaporizes when heated by the molten metal (such as Al or Al alloy 3) to generate a gas blanket 8 between the mould surface and the metal on to which coolant is supplied from an annular header 12 to solidify the casting which is lowered on a bottom plate of the mould 1. A lining sleeve 9 of P.T.F.E. (possibly with a graphite filler) may be inserted in the mould and may be glued in place. Its internal diameter may increase downwardly. The lining may be provided by securing a strip of material to the cavity wall, e.g. by gluing, or provided by a powder applied by electrostatic spraying. The resulting lining 4 is 0À1-5 mm. thick but a tapered mandrel used when casting a hollow body bears a layer 4 which is 0À4-2 mm. thick. The rate of vaporization is determined by the thickness of the insulating P.T.F.E. layer 4 or by the rate of cooling of the aluminium walls 2 of the mould. Tso Al alloys (see Division C7) for casting are specified.
Patent GB-1333854-A (GB)
Title: Gear selector mechanism
IPC: F16H61/24
Filed: 1972-04-26
Abstract: 1333854 Variable speed gear control BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 26 April 1972 [25 Feb 1971] 5385/71 Heading F2D A gear selector mechanism comprises an interlock plate 20 for preventing movement of non-selected bell-crank levers 13-15 which activate the gear engaging members. The selector arm 12 on the rotatable and slidable selector shaft 11 is adapted to be engaged in a slot in one of the bell-crank levers 13-15 and then slid to rotate the selected lever. The interlock plate 20 is provided with a pin 21, which engages in a hole in the selector arm 12, and is formed with a bifurcated end which engages the selector shaft 11. The plate 20 engages in normally aligned slots in the bell-crank levers and is formed with a slot 22 to allow pivoting of the selected bell-crank lever whilst locking the others. A spring-loaded pin 23 is formed with a slot, which engages the interlock plate 20, and biases the plate, and selector arm, to a position in which the selector arm is aligned with the 3rd/4th gear bell-crank lever 13. The pin 23 is formed with a recess normally engaged by a spring-loaded ball 24 which must be displaced when the selector arm is moved into alignment with the reverse gear bell-crank lever 15.
Patent GB-1335723-A (GB)
Title: Photolithographic plates
IPC: G03F7/105
Filed: 1972-05-23
Abstract: 1335723 Photo-lithographic plate HAWTHORN BAKER Ltd 23 May 1972 [10 June 1971] 19931/71 Heading G2C A negative working photo-lithographic plate comprises an aluminium substrate having an electrograined and anodized surface on which adheres a photo-sensitive coating comprising a cinnamic, α-substituted cinnamic or furfurylacrylic ester in which is incorporated a phthalocyanine pigment. The aluminium substrate may be electrograined in aqueous hydrochloric acid (with passage of an alternating current). It may be anodized in aqueous phosphoric or sulphuric acid. The ester may be of polyvinyl alcohol, starch, cellulose or epoxy resin. The coating may comprise 1-15% of phthalocyanine pigment, e.g. copper phthalocyanine, based on the ester. The coating may be applied in a solvent, e.g. cyclohexanone, methyl glycol acetate, ethyl glycol acetate or 5% methylethyl ketone in ethyl glycol acetate. The developer may comprise an organic solvent and a desensitizing acid, e.g. sulphuric or phosphoric acid (causing the anodized aluminium to remain hydrophilic.
Patent GB-1336415-A (GB)
Title: Strain sensitive transistor stylus
IPC: H04R23/00
Filed: 1972-02-24
Abstract: 1336415 Pickups STANDARD TELEPHONES & CABLES Ltd 24 Feb 1972 8545/72 Heading H4J [Also in Divisions H1 and G5] A strain-sensitive transducer (as described a gramophone pickup) includes a resilient stylus having a rectangular shank 1 and one or more strain-sensitive transistors 3 formed integral with or fixed to a face or faces 4 of the stylus. Elastic deformation of the stylus causes the one or more transistors 3 to produce a corresponding electrical signal. Preferably a silicon stylus is used and field effect transistors 3 are formed integral with the stylus, conductive leads 5 being connected to the electrodes of the transistors 3. The described pickup is cemented to a spring 6 secured to a pickup arm (not shown). The stylus tip is of spherical or ovoid form. Stereo signals can be obtained by suitable arrangement of the transistors 3. If vertical excursions only are to be sensed, transistors mounted on opposite faces of the rectangular shank are connected in series. The pickup is applicable to the reproduction of video disc recordings or of multiplex sound disc recordings using, for example, a sub-carrier of 30 kHz. Mass production of pickups is obtained by processing a strip of silicon on both sides to produce the required transistors and connections. The strip is covered with an insulating and then a conductive coating to prevent damage, contamination and hum pickup. The strip is broken up by lines etched or air-abraded across its width to produce a series of square shanked members which are then provided with points.
Patent GB-1339081-A (GB)
Title: Manufacture of bipyridylium salts
IPC: C07D213/00
Filed: 1971-02-22
Abstract: 1339081 Bipyridyl derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Feb 1972 [22 Feb 1971] 5098/71 Heading C2C 1,1<SP>1 </SP>- Di(hydroxyalkyl) - 1,1<SP>1</SP>,4,4<SP>1</SP> - tetrahydro-4,4<SP>1</SP>-bipyridyls are prepared by reacting an alkylene oxide with the interaction product of a metal and an optionally substituted pyridine. The reaction is preferably carried out under substantially anhydrous conditions, in the substantial absence of molecular oxygen, in the presence of a liquid diluent (e.g. liquid NH 3 ) and at - 120 to 200 C. The alkylene oxide used preferably contains 2-10 C atoms (e.g. ethylene oxide). The 1,1<SP>1</SP>-di(hydroxyalkyl)-1,1<SP>1</SP>,4,4<SP>1</SP>-tetrahydro-4,4<SP>1</SP>-bipyridyl, after optional protonation (e.g. using MeOH or NH 4 NO 3 ), may be oxidized (e.g. with SO 2 ) to produce the corresponding 1,1<SP>1</SP>-di(hydroxyalkyl)-4,4<SP>1</SP>-bipyridylium salt. The Examples describe the preparation of 1,1<SP>1 </SP>- di(2 - hydroxyethyl) - 1,1<SP>1</SP>,4,4<SP>1</SP> - tetrahydro-4,41-bipyridyl and the corresponding 1,11- di(2-hydroxyethyl)-4,4<SP>1</SP>-bipyridylium cation. The bipyridylium salts may be used as herbicides in aqueous solution usually after formulation with a wetting agent.
Patent GB-1339140-A (GB)
Title: Self propelled vehicles
IPC: B60W10/06
Filed: 1972-04-11
Abstract: 1339140 Vehicle power units; transmissions W HOUSTON 11 April 1972 [11 Jan 1971] 1234/71 Heading B7H [Also in Divisions H2 and G3]  A self-propelled vehicle comprises a combustion engine 2A driving an electrical generator 2B which charges a battery 2C, at least one of the wheels of the vehicle being driven by an electric motor 2D energized normally from the battery 2C, means being provided for stopping or starting the engine in dependence upon the voltage of the battery and the current required by the wheel motor(s) 2D. Devices 2K, 2L sense the current demand by the wheel motors 2D and the voltage of the battery 2C respectively to provide signals for a logic device 2M such that should these signals show that the battery is incapable of meeting the current demand the logic device 2M develops a signal which causes the engine 2A to be started whereupon the generator 2B functions to charge the battery and supply the wheel motors 2D. The engine 2A is started by using the generator 2B as a motor to rotate the engine. When the battery has been recharged sufficiently to supply the wheel motors by itself the logic device develops a signal which causes the engine to stop. The speeds of the wheel motors 2D are controlled by varying the width of energy pulses supplied to the motor by way of a transistor switching device in the motor controllers 2E. A sawtooth waveform is provided by a waveform generator 2G, the amplitude of which is selected by a device 2N to set the maximum speed of the wheel motors. The speed control signal to the controllers 2E is compared with a signal representing the speed of the motor, the resulting signal being used to control the transistor switching device so as to maintain constant the speed of the motors. Should the transistor switching device be turned off the wheel motors function as generators to charge the battery thereby providing the vehicle with regenerative braking. The vehicle direction is controlled by driving the motors on one side of the vehicle faster than those on the other side and this is arranged by a control device 2H operable by the vehicle steering mechanism which apportions the waveform from the generator 2G more to the driving motors on one side of the vehicle than to the motors on the other side. The motors are each provided with a switch whereby the motors are reversible.