baber/WOPTO huggingface dataset:
Patent GB-680724-A (GB)
Title: Means for controlling variable electrical resistances, inductances, condensers or the like
IPC: H01F21/12
Filed: 1949-12-03
Abstract: 680,724. Regulating switches; electromagnetic switches. MORRIS ELECTRICAL ENGINEERING CO., Ltd., J., and WILCOX, K. Nov. 6, 1950 [Dec. 3, 1949], No. 31104/49. Class 38(v) [Also in Group XXXV] A regulating switch for controlling variable impedances and particularly for use as a dynamo voltage regulator, comprises a fixed rectilinear row of contact pieces b and a bare c which is so curved that when it is rocked, its point of contact moves along the row of contact pieces, the bar being maintained in contact with the row by gravity and/or the pressure of a spring. The bar is actuated by means of a lever e which is pivotally supported by a pair of spring blades g secured to a rigid support h. The lever e is coupled to the bar c by a pair of spring blades j extending between transverse members k, on the bar and the lever. The armature o of an electromagnet mis rigidly secured to the lever e and the piston q of an air dashpot p is connected by a rod r extending through the armature o to the free end of a blade spring secured to the lever e. The damping action of the dashpot is adjusted by means of a rotatable cover piece v co-operating with a vent hole (not shown), and by varying the effective length of the blade spring s by means of a slidable adjustable abutment w. It is stated that the lever construction is such that when the lever is actuated by the electromagnet, the lever imparts to the contact bar c a pure rolling motion on the fixed contact pieces b.
Patent GB-1308746-A (GB)
Title: Process for removal and recovery of mercury from gases
IPC: C01G13/00
Filed: 1971-07-02
Abstract: 1308746 Removal of mercury and selenium from gases OUTOKUMPU OY 2 July 1971 [3 July 1970] 31172/71 Heading C1A Mercury is removed from gases by washing with circulating sulphuric acid of concentration 80-98% by weight at 70-250‹ C., the water vapour pressure of the wash solution in the tower being substantially the same as the partial pressure of the water vapour in the gas to be washed, and the resulting solid which contains mercury is separated from the circulating acid. The gas stream may also contain selenium which is also removed. Preferably the mercury containing gases are subjected to dust removal prior to the washing with acid. It is important that the humidity of the gases does not dilute the wash solution. The solid product after separation from the circulating acid may be washed with water to remove sulphuric acid and any other metal salts which may be present thus concentrating the mercury and selenium in the residue.
Patent GB-853174-A (GB)
Title: Improvements in or relating to charging apparatus
IPC: H05B6/78
Filed: 1957-10-07
Abstract: 853,174. Feeding workpieces. PATELHOLD PATENT-VERTWERTUNGS & ELEKTROHOLDING A.G. Oct. 7, 1957 [Oct. 8, 1956], No. 31294/57. Class 78 (1). Workpieces 3 falling down tube 1 are released one by one to fall through heating coils 20, 21 by fingers 7, 8 working like an escapement, under the influence of air cylinders 16, 13 controlled by valves 17, 18. As the lowermost piece is released by finger 7 the superposed pieces are held by the pressure of finger 8 against the next lowermost piece. The position of finger 8 may be varied to suit pieces of differing lengths. Fingers 22, 23 control the passage of the pieces through the heating coils 20, 21 and, likewise, release them one by one.
Patent GB-1139796-A (GB)
Title: Improvements in brakes
Inventor: BEARDSHAW WILLIAM GEORGE ALFRE
IPC: B62B5/04
Filed: 1965-07-23
Abstract: 1,139,796. Brakes. BENCRAFT Ltd. 25 July, 1966 [23 July, 1965], No. 31386/65. Heading F2E. A manually-operable brake, particularly for invalid chairs, perambulators, or pushchairs comprises a first hand-actuated first lever and a second shorter lever, 11 and 13 respectively, connected by a rod 10 for rotation about a common axis, a link 19 pivoted at one end to the shorter second lever and forming a toggle linkage therewith, a substantially U-shaped guide bracket 22 pivoted to a fixed frame member 15 and to the other end of the link, said bracket carrying a part-cylindrical brake pad 26 on an extension thereof and guiding said brake pad for engagement with tyre 16 of a wheel 17. On rotation of the first lever in the direction of arrow A, the brake pad is moved into engagement with the wheel and is held in the applied position by the second lever and link moving past the dead-centre position, Fig. 2 (not shown). A stop tab 28 on the link determines the final relative positions of the link and second lever in the brake applied position. The brake pad is adjustably mounted on the guide bracket by screw-threaded rod 25 and nut 27 engaging with a bush 24. Alternatively the link 19 may be adjustable in length.
Patent GB-1467415-A (GB)
Title: Trisazo dyes
IPC: C09B35/46
Filed: 1973-12-18
Abstract: 1467415 Trisazo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 18 Dec 1973 [21 Dec 1972] 31452/76 Divided out of 1465889 Heading C4P Novel dyestuffs of the formula wherein E is or are prepared by diazotizing C.I. Acid Green 20 (C.I. 20495) and coupling under acid conditions with 2,4-diamino-benzene sulphonic acid or maminophenyl glycine. The dyestuffs, which may be used in salt form, are useful for colouring paper in black shades. They are often conveniently used in the form of concentrated aqueous solutions containing alkali to pH 10 to 11.
Patent GB-987382-A (GB)
Title: Improved process for the production of monochlorobenzene
IPC: C07C17/156
Filed: 1963-08-09
Abstract: Monochlorobenzene is prepared by the catalytic vapour phase oxidation of a benzene-HCl mixture at elevated temperature and at a pressure of from 1.5 atm. up to the pressure at which at least one reactant condenses.
Patent GB-1432955-A (GB)
Title: Sea-going vessels with navigationlight systems
IPC: B63B45/02
Filed: 1972-07-06
Abstract: 1432955 Ships navigation lights; visual signalling W S MARTIN 5 July 1973 [6 July 1972] 31598/72 Heading G4F [Also in Division F4] A power-driven sea-going vessel is provided with at least one navigation light in the form of a laser which is rotatably mounted relative to the hull of the vessel so that as the laser rotates the beam therefrom illuminates an area ahead of the ship over a predetermined arc of the horizon. The laser may be mounted so that it rotates continuously and either a screen is provided which masks the laser beam outside the predetermined arc or the laser is switched off when outside the predetermined arc. Alternatively the laser may be mounted so as to reciprocate through this arc with the beam switched on permanently. As shown four such laser navigation lights 2, 3, 4, 5 may be mounted on the vessel 1 on horizontal rotatable platforms 6. The lasers 2, 3 of different height above the hull provide a white light over an angle α of 225 degrees and the lasers 4, 5 provide a red and a green light respectively over an angle # of 112¢ degrees. The reciprocating motions of the lasers derived from a Selsyn motor may be synchronized. Respective lasers 4, 5 may emit a flashing or pattenred light when the ship's course is altered by more than a predetermined angle. Similarly a flashing or patterned light may be emitted by at least one of the lasers 2, 3 when the speed of the propeller is changed by more than a predetermined amount.
Patent GB-1503795-A (GB)
Title: Electrolytic devices
IPC: H01G9/04
Filed: 1975-07-29
Abstract: 1503795 Electrolytic capacitors P R MALLORY & CO Inc 29 July 1975 [8 Aug 1974] 31699/75 Heading H1M In a cathode for an electrolytic device, e.g. capacitor or battery, the surface contacting the electrolyte comprises a layer of copper sulphide, selenide or telluride on a copper-containing substrate. As shown the cathode is the can 12 of an electrolytic capacitor, and may be copper alloyed with about 0À1 wt. per cent silver. Surface coating 18 of CuS, CuSe or CuTe is applied by treating the copper surface with a solution of the appropriate acid or other reactive compound. The reagent may be a polysulphide, or selenous or tellurous acid in the form of SeO 2  or TeO 2  dissolved in H 2 SO 4 . The coating may be preformed, or the reagent added to the working electrolyte or coated on to porous anode 11. The working electrolyte may be deaerated sulphuric, phosphoric or hydrochloric acid and may contain a depolarizer, e.g. copper sulphate.
Patent GB-1388114-A (GB)
Title: Aerial arrangements
IPC: H01Q25/04
Filed: 1971-07-06
Abstract: 1388114 Aerials; radio direction-finding ELLIOTT BROS (LONDON) Ltd 6 July 1972 [6 July 1971] 31772/71 Headings H4A and H4D An aerial arrangement suitable for use in a monopulse radar system comprises a feed horn 1 adapted to transmit signals in even and in odd modes, a directional coupler 7 having two channels coupled to respective ports, one on each side of the axis of the horn, and comparator means 5 coupled to the directional coupler and adapted to produce sum and difference output signals. The purpose of the directional coupler 7, which provides a relative phase shift between the two channel signals in dependence upon its coupling coefficient, is to counter the effects of differing propagation coefficients of the said odd and even modes. As described, two horn parts P1, P2 are coupled by waveguide to the directional coupler 7, which comprises two side-by-side waveguides with coupling holes in a common wall within a portion 8. The horn 1 is formed with discontinuities at the neck portion such as to propagate the H 01 , H 03  even modes and the H 02  odd mode. The comparator means 5 comprises a 3dB directional coupler 4 having a quadrature phase-shifter 3 in one input channel. The output channels of the comparator provide sum and difference signals in quadrature which are brought into phase (or into antiphase) by a further quadrature phase shifter 6. The horn 1 may be mounted at the centre of the main reflector of a Cassegrain aerial system, and be directed at the sub-reflector thereof. In another embodiment, two superimposed feed horns each propagating even and odd mode signals in respective parallel planes enable sum and difference signals to be derived relative to those planes, and also relative to planes which are perpendicular thereto. Alternatively, a single horn may be adapted to propagate even and odd signals in perpendicular planes, from which corresponding sum and difference signals are derived.
Patent GB-1424041-A (GB)
Title: Rubber compositions
IPC: C08L15/00
Filed: 1973-07-04
Abstract: 1424041 Vulcanizable rubber compositions BAYER AG 4 July 1973 [7 July 1972] 31772/73 Heading C3P Sulphur-free pasty vulcanizable rubber compositions comprise (a) a rubber of molecular weight above 150,000 which contains OH, SH, NH, NH 2 , COOH, SO 2 NH 2 , CONH 2 , Cl or Br groups; (b) a liquid diene polymer or copolymer having a molecular weight of 400-10,000 which contains OH, SH, NH, NH 2 , COOH, SO 2 NH 2 , CONH 2 , Cl or Br groups, there being 50-400 parts by weight of (b) for each 100 parts of (a); and (c) a cross-linking agent capable of reacting with the aforesaid groups and present in an amount of 0À5-10 equivalents per equivalent of said groups. Other additives may be included. In examples, the rubber is polychloroprene containing OH groups or butadiene/ styrene rubber containing #-hydroxypropyl acrylate; the liquid polymer is polybutadiene containing hydroxy or carboxyl groups; the cross-linking agent is diphenylmethane-4,4<SP>1</SP>- diisocyanate with or without magnesium oxide and zinc oxide; and other materials present are selected from dibutyl tin dilaurate (crosslinking catalyst), stearic acid, silica and precipitated silicic acid.
Patent GB-345612-A (GB)
Title: Improvements in or relating to apparatus for drying yarn
IPC: F26B13/00
Filed: 1929-10-19
Abstract: 345,612. Drying yarns in long lengths. DREY, SIMPSON, & CO., Ltd., DREY, O., and BYRD, H. L., Hanover Mills, South Reddish, Stockport, Cheshire. Oct. 19, 192!), No. 31790. [Class 34 (i).] Yarns such as artificial silk after sizing, are dried by passage across a perforated or like surface, through a part of which air is delivered by a fan and through another part of which air returns to the fan to be circulated, a hood being arranged above the surface. The fan 9 draws air down through end perforated surfaces 14 of a table 13, past heating elements 12 in a side chamber 8 and returns it through ducts 17 up through the central perforated surface 15. The hood 18 is spaced above the table to admit side access and allow some air to escape. Dampers allow one side of the apparatus to be closed.
Patent GB-1498481-A (GB)
Title: Method and apparatus for heat exchange
IPC: F28F9/02
Filed: 1975-07-30
Abstract: 1498481 Heat exchangers CLARKE CHAPMAN Ltd 15 July 1976 [30 July 1975] 31843/75 Heading F4S  One of the heat exchanging fluids (e.g. a hot gas) is conveyed to a heat exchanger 14 (e.g. a heat exchanger such as described in Specification 1411472) through an inlet duct comprising first and second tubular members 32, 42, the member 32 having an end portion radially spaced by a gap 50 from an adjacent end portion of the member 42, the member 32 reducing in cross-section in the direction A of gas flow therethrough whereby the gas suffers a static pressure reduction tending to reduce or eliminate leakage through said gap, and the member 42 increasing in cross-section in said direction A whereby the gas, before entering the heat exchanger 14, recovers at least in part the pressure lost in passing through the member 32. Exceptionally, under reduced gas flow conditions, a small reverse leakage flow into the gas stream is permitted. In the region of the gap 50 the duct may be encircled either by a back-up seal 52 or, (see Figs. 2 and 2A) by the heat-insulation lining the vessel 12 containing the heat exchanger and the duct. In a modification (Figs. 3 and 4) the second member of the inlet duct comprises two freely articulated parts (72, 74).
Patent GB-392555-A (GB)
Title: Improvements in or relating to machines for making artificial cream
IPC: A47J43/042
Filed: 1931-11-17
Abstract: <PICT:0392555/III/1> In homogenizing-apparatus for making artificial cream, wherein the materials are delivered from a container c into a cylinder b and compressed by a piston a, the piston is driven from an electric motor k through reducing gear in a casing l and a pin f on a crank disc g engaging a slot e in a bell-crank lever d connected to the piston, the direction of rotation being such that the pressure stroke is the more rapid.  The slot e and the arm containing it is preferably upwardly curved as shown and the pin f preferably engages the slot e through a flanged anti-friction roller h.
Patent GB-1514206-A (GB)
Title: Cable system and method of mounting a cable suitable for wellbore telemetry
IPC: E21B17/00
Filed: 1975-07-30
Abstract: 1514206 Mounting electrical cable within pipe strings EXXON PRODUCTION RESEARCH CO 30 July 1975 [18 Sept 1974] 31879/75 Heading E1F [Also in Division H2] A method of mounting electrical cable 22 (particularly for wellbore telemetry) within a rotary drill string 12 comprises leading the cable from a sub surface location 33 around an upper guide assembly 23 and a lower guide assembly 24 to the surface, and maintaining the section between location 33 and the assembly 23 in tension while allowing the remaining section to retain sufficient slack to allow the addition of further pipe sections. In the embodiment shown the location 33 is a releasable connection between a telemetry component 21 for transmitting signals indicative of borehole condition and the cable. As shown in Fig. 2 the cable winds around pulleys 48, 49, 61, 46 in the upper and lower assemblies 23, 24 and through a gripping device 40 (Fig. 3) in assembly 23 which allows only upward movement of the cable. The connector at location 33 is secured to the component 42 and the cable is tensioned and assembly 24 rises until its part 59 engages part 58 on assembly 23. The cable tension in the section between the location 33 and assembly 23 can be adjusted by drawing the cable past gripping device 40 until the required tension is achieved; the cable is then let out again, the two assemblies separate as weight 32 attached to assembly 24 descends forming slack in the cable. When another pipe section is to be attached the cable is separated at connectors 34, 35 and the cable connector 34 drawn up through the new section (taking up the cable slack) and reconnected to connector 35. The releasable connector 33 allows the cable to be tensioned but will be released when a predetermined tension is exceeded. If required the telemetry component 21 can be releasably latched to the end of the pipe to be drawn up with the cable.
Patent GB-947348-A (GB)
Title: Improvements in or relating to agricultural material dispensers for aircraft
IPC: B65D83/06
Filed: 1961-09-05
Abstract: 947,348. Fertilizer distributers. HUNTING AIRCRAFT Ltd., and C. F. TOMS. Nov. 30, 1962 [Sept. 5, 1961], No. 31893/61. Heading A1D. In a device for distributing fertilizers, insecticides or seeds from an aircraft, a storage hopper 10 fixed in the fuselage communicates via shoot 11 with a rotary centrifugal distributer 12 comprising three arms 20 carried by shaft 16 and supporting anuular plates 21-26 held in spaced relationship by distance pieces 27-31, thus forming a cage having openings between the blades at different distances from the axis of rotation. An apertured plate 35 is mounted in the outlet of shoot 11 and provided with a handle 352 so that the plate may be rotated to vary the position of the apertures 351 relative to the direction of flight so that the pattern of distribution of material is varied. A second apertured plate 37 is mounted co-axially with plate 35 and rotated to vary the effective size of the apertures 351 and regulate the flow of material from the hopper. An agitator 18 is mounted on shaft 16 which is driven by a windmill, an auxiliary engine or by subsidiary drive from the aircraft engine, or in the case of a rotary-wing aircraft the shaft may be rotated by means of aerofoil blades attached to the lower part of the distributer.
Patent GB-466155-A (GB)
Title: Improvements in sleepers for railways, tramways and the like
IPC: E01B3/44
Filed: 1936-11-21
Abstract: 466,155. Railway &c. sleepers. SOC. ANON. ETERNIT PIETRA ARTIFICIALE. Nov. 21, 1936, No. 31912. Convention date, April 25. [Class 104 (ii)] Sleepers are formed of layers of cementasbestos compressed together in a soft condition and reinforced by metal bars a, b, which may be distributed in the upper part of the sleeper as shown in Fig. 4, and in lower part as shown in Fig. 5. A fluid cement may be placed between the layers.
Patent GB-676004-A (GB)
Title: Improvements in or relating to devices for starting the winding operation in yarn winding machines
IPC: B65H67/04
Filed: 1948-12-10
Abstract: 676,004. Textile winding machines; doffing arrangements. ZBROJOVKA BRNO, NARODNI PODNIK. Dec. 10, 1948 [Dec. 13, 1947], No. 32067/48. Class 120(ii) A device for starting the winding operation in a yarn winding machine wherein an empty cop is moved to the winding position by a turning movement of.a cop-support 1 upon which are mounted freelyrotatable cop-holding heads 4 comprises a cup-shaped thread gripper 5, 6 attached to each head 4 and capable of limited axial movement and a two-armed guide 2 mounted on the cup-support 1 and arranged to locate the thread between the driving head 4 and a gripper 5, 6, so that it is gripped at the start of the winding operation, due to the pressure exerted by a movable counter spindle 19 on the cop 15. When a cop 17 has been wound, a traversing device 21 is moved from a position A to B and a thread guide 23 associated with device 21 locates the thread so that it is introduced betwen the head 4 and gripper 5 as the support 1 is rotated to bring the empty cop 15 into winding position. During the first rotation of the fresh winding operation, the thread, which is still connected to the finished bobbin 17, is broken.
Patent GB-1021184-A (GB)
Title: Improvements in or relating to condensed polynuclear compounds and the manufacture thereof
IPC: C07C59/68
Filed: 1962-08-21
Abstract: The invention comprises:  (a) compounds of the general formulae <FORM:1021184/C2/1> and <FORM:1021184/C2/2> (wherein R1 and R2 represent C1-8 alkyl groups, which may be linked together directly or through a nitrogen or oxygen atom to form a 5- to 7-membered saturated heterocyclic radical, R3 and R4 represent CF3, C1-8 alkyl, alkoxy or alkylmercapto, C2-8 alkenyl or alkenyloxy, C6-12 aryloxy or arylmercapto, or OH groups, or halogen atoms, CnH2n represent a C2-6 alkylene group, R5 represents H or a C1-8 alkyl group, R6 represents H, and x and y are zero or integers from 1 to 4); (b) pharmacologically acceptable acid addition salts, N-oxides, N-oxide pharmacologically acceptable addition salts, and quaternary ammonium salts of compounds (I); (c) the preparation of the compounds of (a) by reacting a tetralone of the general formula <FORM:1021184/C2/3> with a Grignard reagent of the general formula <FORM:1021184/C2/4> (wherein Hal represents a halogen atom), any OH groups in the tetralone being protected and subsequently liberated; (d) the preparation of compounds (I) by dehydrating compounds (II); (e) the combination of the process of (c) with the preparation of the Grignard reagent by reacting magnesium in an anhydrous inert organic solvent with the appropriate aminoalkyl halophenyl ether; (f) the combination of the process of (e) with the preparation of the starting material by etherifying the appropriate halophenol with the appropriate aminoalkyl halide.  The compounds of (b) are prepared from compounds (I) by standard methods.  Tetralones of Formula (III) are prepared by cyclizing appropriately substituted 2,4-diphenylbutyric acids by the processes of Specifications 1,021,185 and 1,021,186 or analogous processes using appropriate alternative starting materials, or, in the case of 2 - phenyl - 6 - allyloxy - 1,2,3,4 - tetrahydro - 1 - naphthalenone, by reacting the corresponding 6-hydroxy compound with allyl chloride in the presence of sodium methoxide in methanol.  Reaction of the same 6-hydroxy compound with 2,3-dihydropyran yields 2 - phenyl - 6 - (2 - tetrahydropyranyloxy) - 1,2,3,4 - tetrahydro - 1 - naphthalenone. Pharmaceutical compositions, having anti-inflammatory, antifertility, antiestrogenic and hypocholesterolaemic action, comprise compounds (I), the compounds of (b), or 1-[p-(2-diethylaminoethoxy) phenyl] - 1 - hydroxy - 2 - phenyl - 1,2,3,4 - tetrahydronaphthalene hydrochloride, together with a pharmaceutically acceptable carrier. They may take the form of tablets, capsules, powder packets, solutions or suspensions.  Acid addition salts specified include salicylates, cyclohexysulphamates, nicotinates and ascorbates.
Patent GB-1476687-A (GB)
Title: Vat dyes their manufacture and their use
IPC: C09B3/00
Filed: 1974-07-19
Abstract: 1476687 Vat dyes CIBA-GEIGY AG 19 July 1974 [22 Aug 1973 6 June 1974] 32196/74 Heading C4P The invention comprises vat dyestuffs of the general formula wherein R is C 1-4  alkyl, R 1  and R 2  are H or C 1 -C 4  alkyl and each of A 1  and A 2  are vattable radicals having 3 to 7 condensed rings. Preferably A 1  and A 2  are anthraquinone-1- or -2- radicals or 3,4 - phthaloylacridone - 2- or -8- radicals, R 1  and R 2  are H and the anthraquinone radicals may contain a 4- or 5-benzoylamino group. They are prepared by condensing a trihalo-s-triazine with 2 moles of vattable amines A 1 NHR 1 , A 2 NHR 2  which may be different and with one mole of an alkylthiol RSH in any order (including the sequence amine-thiolamine). Alternatively a diamino-alkylthio-striazine may be condensed with vattable compounds A 1 -Y and A 2 -Z where Y and Z are halogen. The dyes are used to dye natural and regenerated cellulose and colour polymers in the welt, lacquers, varnishes, lake-formers, natural and synthetic resins, e.g. aminoplasts, alkyd resins phenolic plastics, polyolefins, e.g. polystyrene, p.v.c. polyethylene polyacrylonitrile, rubber, casein, silicone, silicone resins, coloured pencils, cosmetic preparations and laminated sheets.