baber/WOPTO huggingface dataset:
Patent GB-692510-A (GB)
Title: Improvements relating to cooling arrangements for electrical apparatus
IPC: H01F27/10
Filed: 1950-12-12
Abstract: 692,510. Transformers and rectifiers. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. Sept. 25, 1951 [Dec. 12, 1950], No. 30308/50. Class 38 (ii). [Also in Group XIII] Relates to arrangements for cooling electrical apparatus such as transformers and rectifiers in which the apparatus to be cooled is immersed in a coolant liquid such as oil or other electricallyinsulating liquid contained in a tank 4 and in which the heat generated by the apparatus to be cooled is conveyed to a point of dissipation or heat exchange by circulation of the coolant liquid. According to the invention the coolant liquid is circulated by a motor-driven impeller 7 immersed in the coolant liquid and the impeller and motor are mounted on the apparatus to be cooled so that the whole can be withdrawn from the liquid as a single entity. In a preferred arrangement for cooling a transformer and/or rectifier unit 9 the impeller is driven by an. induction motor 8, the induction motor being permanently electrically connected to the alternating current terminals of the rectifier whereby the energization of the rectifier simultaneously energizes the motor. Water cooling coils 6 are immersed in the coolant liquid and baffles 5 are provided to ensure correct circulation. The coolant liquid circulates downwardly over the cooling coils and upwardly over the unit 9. A temperature-responsive device may be immersed in the coolant liquid adjacent the unit 9 to cut off the current when the temperature of the coolant liquid rises above a predetermined value. Other baffles or guide ducts (not shown) may be provided for directing the coolant liquid towards portions of the apparatus requiring special cooling arrangements.
Patent GB-318037-A (GB)
Title: Improvements relating to pulleys
IPC: F16H7/18
Filed: 1928-10-20
Abstract: 318,037. Harcourt, B. W., Mann, A. J., Hughes, B. D., and Daniels, C. J. Oct. 20, 1928. Guide pulleys. - A pulley comprises a pair of similar parts a placed face to face and secured by a central bush b which is supported through the medium of either a ball bearing e, Fig. 1, or a freely rotatable sleeve f, Fig. 5, on a spindle d which is secured at its ends in a non-rotatable manner to a pair of bracket plates g.
Patent GB-1216158-A (GB)
Title: Process of producing polyester foams
Inventor: KOERNER GOTZ
IPC: C08G101/00
Filed: 1969-06-16
Abstract: 1,216,158. Polyester-based foams. TH. GOLDSCHMIDT A.G. 16 June, 1969 [4 July, 1968], No. 30443/69. Headings C3C, C3R and C3T. Polyester urethane foams or foams prepared from hardenable unsaturated polyesters are prepared in the presence of a foam stabilizer which is a polyoxyalkylene-polysiloxane mixed block polymer wherein (a) the polyoxyalkylene blocks have an average M.W. of 1400 to 3000 and consist of 65 to 100% by weight of ethylene oxide and (b) the polysiloxane blocks contain an average of 3 to 15 silicon atoms of which 2 to 12 are present as dimethylsiloxy radicals while the remaining Si atoms form trifunctional siloxy units and/or are connected to the polyoxyalkylene block. The polyoxyalkylenepolysiloxane block polymers exemplified are those of the formula wherein X is [-C n H 2n O] n Z, m and n are integers, Z is an alkyl, aryl or acyl radical, M is -O-; -CH 2 O-; -(CH 2 ) 3 O-; R<SP>1</SP> and R<SP>2</SP> are each an alkyl radical containing 1 to 4 carbon atoms or MX, R<SP>3</SP> is the same as R<SP>1</SP> or R<SP>4</SP> is a divalent hydrocarbon radical, a = 0 to 10; b = 0 to 3; c = 1 to 10; d = 0 to 3 and c + d = 1 to 13 with the proviso that the values of m, n, a, b, c and d provide a polymer as defined above.
Patent GB-1236021-A (GB)
Title: Filamentary material
Inventor: RENDELL MICHAEL
IPC: D01F9/26
Filed: 1967-07-03
Abstract: 1,236,021. Carbon fibres. COURTAULDS Ltd. 2 Oct., 1968 [3 July, 1967], No. 30511/67. Heading C1A. Continuous carbon filaments are prepared by feeding pretreated organic filamentary material in coils downwardly through a vertical heating zone, e.g. a tube or tunnel furnace, maintained at a temperature of not less than 1000‹ C., and containing an inert atmosphere. The treated filaments may also be graphitized in the same furnace by means of a further heating zone lower down the length of the furnace maintained at a temperature greater than 2000‹ C. The pretreated organic filamentary material may be cellulosic polyamide or polyester filaments e.g. polyacrylonitrile, or any other filaments the structure of which contains a carbon to carbon backbone. These filaments are pretreated by heating to a temperature of between 200‹ and 300‹ C. in an atmosphere of air or air enriched with oxygen or nitrogen.
Patent GB-1123561-A (GB)
Title: Improvements in and relating to novel 9ªß,10ª-steroids, methods of producing the same, pharmaceutical preparations containing said 9ªß,10ª-steroids as active substancesand methods of producing said preparations
Inventor: REERINK ENGBERT HARMAN
IPC: C07J5/00
Filed: 1965-07-19
Abstract: The invention comprises compounds of formula <FORM:1123561/C2/1> where R3 is a 3-keto-4-dehydro-, 3-keto-4,6-bisdehydro-, 3-keto-1,4,6-trisdehydro, 3-alkoxy-3,5 bisdehydro or 3-acyloxy-3,5-bisdehydro-group, and their preparation by (a) treatment of a 16a -hydroxy, etherified hydroxy or esterified hydroxy group with a base or a dehydrating agent, (b) enol etherification or acylation, or (c) 1, 2 and/or 6, 7 dehydrogenation.  The compounds of the invention have gonadotrophin-inhibiting and weak progestational activity and may be used in pharmaceutical compositions in combination with a carrier.  Reference has been directed by the Comptroller to Specification 929,271.
Patent GB-1513787-A (GB)
Title: Electrostatic colour copying apparatus
IPC: G03G15/26
Filed: 1975-07-22
Abstract: 1513787 Photo-copying apparatus AGFA-GEVAERT AG 22 July 1975 [25 July 1974] 30601/75 Heading G2A An electrostatic colour copying apparatus comprises an exposure station and a plurality of developing stations, with drive means for moving a copy supporting carriage between the said stations and disengaging itself at the exposure station, and means which then positively locate the carriage precisely with respect to the exposure staiton. As shown, the carriage 18 can slide along a pair of support rails as at 16. The copy carrier 29 having a layer of zinc oxide on its under side is attached below the carriage by suction means acting through a pipe 28. Secured to the carriage is a dog plate 43 having two slots 43a, 43b therein. The transport derives from a toothed belt 20 driven from a reversible motor 41. A dog pin 42 secured to the belt can engage in one of the slots 43a, 43b, and so move the carriage in either direction. Initially, moving in direction A and when it reaches the first of a series of developing stations 8 a switch is tripped which disengages the drive. The stations 8 are designed so that the level of liquid therein reaches the rim 9a, so that it contacts the copy carrier. At this first station the copy carrier is dampened with dielectric carrier liquid, after which the motor is reversed and the carriage moved in direction B. As it passes a corona discharge device 5 it is charged, and then passes on to the exposure station, where the drive is again disengaged. The belt 20 passes over three guide rollers 44, 45, 46, the roller 45 being outside the path in which the dog plate 43 moves. Thus if the stoppage of belt 20 is delayed, although the carriage stops immediately at station 2, the belt continues until the pin 42 slides out of slot 43a and is thus completely disengaged from plate 43. Two electromagnets 47, 48 are now energized, so that the spring-loaded suction plate 26 to which the copy carrier is attached is drawn downwards. Two centering pins (38, 39) Fig. 3 (not shown) fixed to the supporting walls carrying the support rails engage in co-operating bores (58a, 59a) formed in angle pieces attached to plate 26. Thus a very accurate positioning of the carriage is achieved with respect to the projector 2. The first colour separation is exposed, through a blue filter. The magnets are switched off, and the motor drive engaged again, so that pin 42 engages again in slot 43a and the carriage is moved to the second developing station 8, containing yellow toner. The carriage is then moved back to the exposure station, when a further exposure is made through a red filter, then developed with a cyan toner. Finally an exposure is made through a green filter, and developed with a magenta toner. On returning to the exposure position after each developing stage, the carriage passes over a blotting roller 15, to absorb residual liquid. The precision with which the carriage can be located at the exposure station enables a very accurate registration of the colour separation images to be obtained.
Patent GB-936040-A (GB)
Title: Improvements in or relating to apparatus for measuring the electrical resistivity ofliquid metals
Inventor: BLAKE LESLIE REGINALD
IPC: G01N27/02
Filed: 1960-09-06
Abstract: 936,040. Determining relative quantities of fluid mixture constituents. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Aug. 17, 1961 [Sept. 6, 1960], No. 30681/60. Addition to 873,912. Class 37. For an arrangement for measuring small changes of electrical resistivity in flowing liquid metals for the purpose, for example, of ascertaining the metal oxide content at a particular point in a stream, and wherein a voltage dependent upon the current passing through the liquid metal is compared with a voltage derived from a standard resistance through which is passed a current related to the current passed through the metal as in the parent Specification, temperature compensation is effected by a temperature-sensitive platinum wire resistor 20 wound non-inductively on a mica sleeve surrounding a sample pipe 12, and a temperature independent resistor 22, connected by adjustable transformers 24, 25, the wipers 30 of which are ganged to permit variation of the proportions of reference voltage obtained from the two resistors whereby variation of their overall coefficient of resistivity is achieved. Stainless steel toroid sample pipe 13 is arranged in an alternating magnetic field produced by a winding 17, on a core 16, energized from an A.C. source over a transformer 21, and the current in the liquid metal is measured by a probe winding 18 connected to a recorder 27 via a phase sensitive rectifier 26, a variable resistance 28 being provided to balance out unwanted quadrature components. The wire 21 is embedded in magnesium oxide and lagged with asbestos tape.
Patent GB-299394-A (GB)
Title: Improvements in and relating to high tension cables
IPC: H01B9/00
Filed: 1928-10-23
Abstract: 299,394. British Thomson-Houston Co., Ltd., (Assignees of Hayman, W. C.). Oct. 25, 1927, [Convention date]. Cables, arrangement and disposition of parts of.-In order to exclude gases from a multi-core high - tension underground cable, a filler for the spaces between the cores and outer coverings comprises side members of paper and a central member of jute. In the embodiment which is a 25,000-volt three-conductor cable, each core comprises a conductor 1 surrounded by smaller conductors 2. Layers 3 of paper insulation complete the core. The spaces 6 between the cores and the cable insulation 4 under the lead sheath 5 are filled with fillers having side-members of paper strips 8, and a central member of jute cords 9. The central space of the cable is filled with crumpled kraft paper 10.
Patent GB-930772-A (GB)
Title: Improvements in or relating to the purification of titanium trichloride
IPC: C08F4/64
Filed: 1961-08-25
Abstract: Titanium trichloride initially purified by washing with an inert hydrocarbon, e.g. n-heptane, is intimately contacted with an aluminium or beryllium alkyl in an inert aliphatic, cycloaliphatic or aromatic hydrocarbon at a temperature not exceeding 100 DEG C.  The treatment is preferably carried out by refluxing for approximately 2 hours or stirring for approximately 24 hours with 10-200 mole per cent (based on titanium trichloride), with aluminium triethyl, aluminium triisobutyl or beryllium diethyl.  The precipitate is then suction filtered and washed again with an inert hydrocarbon, e.g. n-heptane.  The purified titanium trichloride is subsequently used in conjunction with an organic aluminium compound as a catalyst for a -olefine polymerization.
Patent GB-1076513-A (GB)
Title: 2,1-benzisothiazoles and their preparation
IPC: C07D275/04
Filed: 1964-08-04
Abstract: The invention comprises compounds of the Formula I and pharmaceutically acceptable salts thereof, wherein R represents a chlorine atom or a methyl or methoxy group optionally substituted in the 5- or 6-position of the benzisothiazole nucleus, R1 represents an N-pyrro isothiazole nucleus, R1 represents an N-pyrrolidinyl group or a group of the formula -NH(C1- 3 alkyl) or -N(C1- 3 alkyl)2; the preparation of compounds of the Formula I by oxidizing a compound of the Formula III with H2O2 in pyridine or by reducing a compound of the Formula IV with at least 2 molecular proportions of stannous chloride in hydrochloric acid and hydrolysing the resulting complex with alkali and, if desired, converting any resulting free base into an acid addition salt thereof.  <FORM:1076513/C2/1> <FORM:1076513/C2/2> <FORM:1076513/C2/3> o-Amino- and o-nitro-thiobenzamides of the Formulae II and III may be prepared by reacting the corresponding amino- and nitrobenzamides with phosphorus pentasulphide and hydrolysing the resulting phosphorus complex. The o-amino- and o-nitrobenzamides may be prepared from the free acids by conversion to the acid chlorides and treating the latter with the appropriate amine.
Patent GB-208167-A (GB)
Title: Process for the preparation of rubber which is dyed throughout
IPC: D06P1/92
Filed: 1923-12-08
Abstract: 208,167. Meyeringh, D. J., and Wijnand, P. C. Dec. 8, 1922, [Convention date]. Transparencies. - Plantation rubber in crÛpe or sheet form, with or without an admixture of gutta percha, fillers, sulphur, accelerators, &c., is treated with a solution of colouring matter in a solvent for rubber whereby it is coloured throughout. The treated rubber after drying may be again rolled, and embossed by passing it between engraved rollers; and it may be vulcanized by heat, actinic rays, &c. By keeping the proportion of colouring matter low, a substitute for window-glass is obtained.
Patent GB-1327906-A (GB)
Title: Laser
IPC: H01S3/098
Filed: 1972-07-03
Abstract: 1327906 Lasers INTERNATIONAL BUSINESS MACHINES CORP 3 July 1972 [12 Aug 1971] 31005/72 Heading H1C A laser has a mode selector within its resonant cavity comprising a uniaxial birefringent crystal to distinguish between degenerate transverse modes and thereby produce a single rotationally symmetric mode such as TE 01  or TM 01 . The crystal 10 is shown in Fig. 4, between lenses 12, 13 which cause the laser beam to diverge as it passes through the crystal. This divergence may also be achieved using convergent lenses or curved resonator mirrors. A transparent plate 17 carries a central mask 16 which suppresses the ground mode TEM 00 , and a stop 15 suppresses high order modes, but these stops cannot distinguish between wholly degenerate modes since modes have identical transverse energy distributions. However, the birefringent crystal, e.g. of calcite, shows different refractive indices for the degenerate modes TE 01  and TM 01 , since they are orthogonally polarized, and is arranged so that the TM 01  mode diverges more than the TE 01  mode and is removed by the stop 15. It is preferred that the resonator is operated near its point of instability to aid this discrimination between modes, and this is achieved by making the two foci F 1 , F 2 , of the lenses close together. The dimensions of the crystal and lenses may be chosen to function as the stops 15 and 16, but the use of separate stops is preferred. The active medium may be placed on either side of the lens system; on the large beam diameter side the mode volume is larger so a greater output is achieved, while on the small diameter side the effect of inhomogeneity in the active medium may be reduced. The birefringent crystal may have its ends formed as the lenses. The mode selector may be used with a passively Q switched ruby medium, Fig. 1 (not shown). Because the TE 01  and TM 01  modes are orthogonally polarized, Figs. 2 and 3 (not shown), the TM 01  mode can be obtained from the TE 01  mode generated in Fig. 4 by a 90 degree polarization rotation. One of the resonator mirrors may be used for longitudinal mode selections.
Patent GB-1293300-A (GB)
Title: A toy with a track and wheeled vehicles
Inventor: KOIZUMI RIKIHACHIRO
IPC: A63H18/00
Filed: 1971-07-02
Abstract: 1293300 Toy tracks and wheeled vehicles COSMO TOYS MANUFACTORY Ltd 2 July 1971 31034/71 Heading A6S A toy comprises a track for guiding vehicles around a closed path and at least two powered wheeled vehicles 10, 11 to run on said track each vehicle being provided at its leading edge with cam means 23 which coact with the cam means of the other or another such vehicle, when they meet head on, and cause the leading edge of one vehicle to commence to ride up over the other vehicle, the vehicles being shaped such that said one vehicle may ride completely over said other vehicle and down onto the track. In the embodiment described the track comprises curved portions 1, a straight 2, bridge 3, forks 4, provided with deflector blades 22, and braking portions 5 which are joined together by means of tongue and groove connections 8, 9. The vehicles are driven by electric motors powered by a storage battery and are provided with ribs 15 and upstanding ridges 16 to provide a good grip and a guide for the wheels of the other vehicle. Located under the track at each braking portion is a lever 18 which has at one end a projecting stop lug 17 normally urged to a raised position by spring 20. When a vehicle A approaches this lug from the right as shown in Fig. 3, the lug contacts a switch arm 14 of the car and halts it with its front wheels positioned in a depression 24 of the track. A vehicle B approaching from the left is deflected upwardly by the lowered cam of the vehicle A and after riding completely over the vehicle A depresses lugs 21 of the lever 18 to release the vehicle A. When the first vehicle (C) approaches the braking position from the left (Fig. 2, not shown) it is halted by the lug 17 and is subsequently released by a vehicle (D) approaching from the right and depressing lugs 21, when the vehicles meet the front wheels of vehicle (C) are raised by ramp 25 and so this vehicle rides completely over the vehicle (D). The lever 18 may be depressed manually by means of a lug 26 extending from the track.
Patent GB-356007-A (GB)
Title: Runner knitter
IPC: D04B17/04
Filed: 1930-10-16
Abstract: 356,007. Needles for repairing knitted fabrics. GEARHART, E. J., 311, Walnut Street, Clearfield, Pennsylvania, U.S.A. Oct. 16, 1930, No. 31042. [Class 112.] A pivoted latch hook needle 1 for repairing runs or "ladders" in knitted fabrics has a magnetized member 7 mounted in the handle 2 to hold the latch from snapping back into the closed position when a loop slips over it on to the needle shank. The latch may also be retained in open position by a spring ball 25, Fig. 11, or a spring 28, Fig. 13. The hook 3 is shaped so as to render it impossible for the hook to re-enter a loop just formed by it ; the shape is shown in Fig. 6, the hook having a hump 23 and an inclined part 21.
Patent GB-1307308-A (GB)
Title: Vehicle transmissions
IPC: F16H61/00
Filed: 1970-06-26
Abstract: 1307308 Variable speed gear control ROBERT BOSCH GmbH 26 June 1970 [28 June 1969] 31056/70 Heading F2D A vehicle transmission (e.g. planetary gearing 11) with hydraulically actuated clutches or brakes for different ratios, has an electronic control device 31 producing signals (e.g. pulses with varied frequency or pulse width) to effect ratio changes, and to control a main pressure regulator 20 (e.g. with a transducer 23 controlling an hydraulic valve 22) to set the hydraulic pressure (e.g. in the main 18) to be proportional to estimated output torque, estimated by the device 31 (e.g. from signals corresponding to accelerator pedal position 42, kickdown 43, vehicle speed 44, engine speed 45, ratio clutch or brake engaged 46, 47) the device also controlling the pressures supplied (e.g. via lines 13, 14) to the clutches or brakes by pressure regulators. The aim is to smooth ratio change. In higher ratios the clutches or brakes may be controlled by simple solenoid valves 42a. As shown engine power at 10 is connected to the transmission by a clutch or torque converter 12 hydraulically controlled at 17. The transmission may have a gear selector 36 including electrical switches 37 and a valve 39 which increases the pressure in 18 when reverse gear R is selected.
Patent GB-265149-A (GB)
Title: Improvements in or relating to chain tensioning devices
IPC: F16H7/08
Filed: 1926-12-08
Abstract: 265,149. Soc. Anon. Etablissements Ballot. Jan. 29, 1926, [Convention date]. Valve gear. --- Chains 9. 14 engage sprockets on the crank shaft 5, cam shaft 6, and magneto shaft 7 &c., and also engage connected idler sprockets 11 loose on an axle 12 adjustable to tension both chains. The axle 12 is carried on a forked bracket 16 loose on an eccentric bear. 17, adjustable to lift the bracket and tighten the chain 9. The bearing 17 is so placed that swinging of the bracket 16 thereon does not appreciably affect the tension of the chain 9 but tensions the chain 14, such swinging being effec'ted by screws 20, 21 engaging tapped holes in the crank casing 4.
Patent GB-1358564-A (GB)
Title: Dispersing and stabilizing agents for dyestuffs
IPC: D06P1/62
Filed: 1971-07-02
Abstract: 1358564 Dye dispersions FARBWERKE HOECHST AG 2 July 1971 [3 July 1970] 31109/71 Heading D1B Dyes are dispersed in aqueous media using as dispersing agent one or more phenolformaldehyde condensation products, the or each condensation product containing one or more sulpho groups, is free from units derived from a naphthol sulphonic acid and comprising the phenolic component and formaldehyde in a molar ratio in the range of from 1:1.1 to 1:4. Vat and disperse dyes organic and inorganic pigments may be dispersed with dispersing agents prepared from phenolic compounds containing sulpho groups and formaldehyde, or from unsulphonated phenols with formaldehyde and sulphite.
Patent GB-722983-A (GB)
Title: Improvements in and relating to quantitative determination of water
IPC: G01N31/16
Filed: 1952-12-09
Abstract: Reagents for the chemical determination of water of the Karl Fischer type, i.e. comprising a halogen and a substance instantly reacting therewith in presence of water, which deteriorate during storage by spontaneous reaction in absence of water are stabilized by addition of one or more end-products of this reaction in quantity sufficient to bring it to the equilibrium point.  These products may be added as such, or produced in situ by the addition of substances producing them.  For example, a Karl Fischer reagent containing iodine and sulphur dioxide as active reagents and methanol and pyridine as subsidiary ingredients is found to deteriorate in the absence of water by a reaction between iodine, sulphur dioxide and methanol producing iodide ions.  Stabilization is therefore effected either by adding an iodide, e.g. pyridine hydro-iodide, or by producing an iodide in the mixture, e.g. by the controlled addition of water, so that the ratio of iodide ions to molecular iodine is about 3.2.