baber/WOPTO huggingface dataset:
Patent GB-771848-A (GB)
Title: Improvements in bis(halopentenoxy)alkanes
IPC: C07C43/14
Filed: 1955-07-04
Abstract: The invention comprises compounds of the formula (XCH2CH = CH.CH2CH2O)2R in which R is an alkylene group of 2-8 carbon atoms and X is Cl or Br, and a method for preparing them by the action of butadiene on compounds (XCH2O)2R especially with Friedel-Craft catalysts.  In examples, bis-(chloromethoxy)-ethane, bis-(chloromethoxy)-propane, and corresponding -butane, -hexane, -octane and bromomethoxy compounds, are treated with butadiene in presence of solvents and zinc Friedel-Craft compounds to give the corresponding bis-(chloro- or (bromo-pentenoxy)-alkanes.  Other alkane bis-halomethoxy compounds specified include those containing straight and branched chain groups up to 8 carbons; these starting-materials, obtainable by the halomethylation of saturated dihydric alcohols, may have the -O- groups attached at any 2 carbons in the R group defined above.  The bis-halopentenoxy alkanes react with tertiary amines to give quaternary ammonium compounds and with hydrogen cyanide to give various further products including acids and their derivatives.ALSO:Bis-chloro- or bromo-pentenoxyalkanes (see Group IV(b)) may be used in a spray at 1 to 400 dilution in a carrier from an emulsifiable concentrate containing a condensate of glycerol with oleic acid and phthalic anhydride, alkylphenoxypolyethoxy ethanol and aromatic solvent.
Patent GB-613719-A (GB)
Title: Improvements in brackets for holding milk bottles or the like
IPC: A47G29/18
Filed: 1946-06-27
Abstract: 613,719. Brackets. PROCTER, J. H. June 27, 1946. No. 19281. [Class 52 (v)] A wall bracket for carrying milk bottles or the like comprises an L-shaped member A, the vertical part A<1> of which may be secured to a wall, and the horizontal part A<2>, forms a base support for a bottle, a U-shaped spring clip C carried on a projecting channel B on the part A<1> to grip the neck of the bottle, and a cross bar D fixed to the part A<2>. The parts A<2> and D are turned up at their ends to form lugs E to retain the bottle. The bracket carries a cowl F. The parts may be made of strip metal or moulded plastic material.
Patent GB-984894-A (GB)
Title: Radio frequency electron tubes
IPC: H01P1/08
Filed: 1962-05-21
Abstract: 984,894. Velocity-modulated tubes; impedance matching. VARIAN ASSOCIATES. May 21, 1962 [May 29, 1961], No. 19523/62. Headings H1D and H1W. Radio frequency amplifier tube apparatus having an electron beam and a wave-supporting structure disposed along the beam path for electromagnetic interaction with the beam, includes a first output resonator 11, Fig. 1, surrounding the beam for extracting amplified signal wave energy from the beam, a second resonator 30 coupled to the first resonator, an output hollow waveguide structure 13 coupled to the first resonator by the second resonator, and a wave-permeable gas-tight window member 22 disposed in and vacuum sealing the output waveguide structure, the second resonator being formed by a section of hollow waveguide at least partially wrapped around the collector structure and having a pair of opposed and spaced apart, broad, side walls 16, 20 and a pair of opposed and spaced apart, narrow, side walls, one of the broad side walls 16 being defined by an iris wall projecting into the output hollow waveguide structure. A post 17 projects into the second resonator from the iris wall and controls the resonant frequency and external Q of the second resonator. The resonators are coupled by a semicircular iris 12, provided in polepiece 10, and an inductive iris 18 is positioned within the output waveguide structure to increase the bandwidth. The output window assembly 21, Fig. 3, comprises a flat, ovalshaped ceramic window 22 which is metallized and sealed, e.g. by brazing, to the base of an annular, flanged window support cup 23. The height of the window is somewhat larger than the height of the waveguide 13 and the window is re-entrant into the waveguide wall. The flanged lip portion of the window support cup 23 is received in a vacuum tight manner to the flange portion of a flange support cylinder 23<SP>1</SP> which is brazed to the wall of a channel 24 provided in a window support member 31. A radio frequency shield 27 prevents an electric field concentration at the inner rim of the base of the support cup.
Patent GB-693963-A (GB)
Title: Improvements in and relating to plug bodies for low-tension sparking plugs
IPC: H01T13/52
Filed: 1949-07-27
Abstract: 693,963. Sparking plug bodies. SMITSVONK, N. V. July 27, 1949 [June 27, 1949], No. 19719/49. Class 7 (iv). In a low-tension sparking plug body comprising a sleeve 1, a centre electrode 5 and a mixture of powder-like particles of insulating material 9 packed in the space between the electrode 5 and sleeve 1, the upper and lower parts of the insulator 9 are locally hardened. The pressed-in insulating material, which may consist of a mixture of coarse felspar particles, and mica, all in a finely divided state, adheres to the walls of the body 1 and electrode 5 which are grooved for this purpose. The upper and lower surfaces 11, 12 of the insulator 9 are locally hardened by heat treatment or the addition of certain materials, for example, a glass-like powdered substance; the lower surface 12 of the insulator 9 may be horizontal, inclined or embody a cavity and the insulator has a maximum thickness of 1.5 mm. An ignition element as disclosed in Specification 666,664 is secured in the threaded bore 8 of electrode 5.
Patent GB-533213-A (GB)
Title: Improvements in or relating to the production of insulating films on metal surfaces
IPC: H01J29/43
Filed: 1939-07-07
Abstract: 533,213. Cathode-ray tubes. HOLMAN, H. E. July 7, 1939, No. 19783. Drawings to Specification. [Class 39 (i)] [Also in Group XXXVI] Insulating films are produced on the surfaces of metallic plates or grids, such as the " signal " plate of a television transmitter tube, by electrolytically coating the aluminium, aluminium alloy, or other metal with an oxide film, baking the film, and again electrolysing to produce a second oxide film filling the cracks produced by the baking and also underlying the first film. Subsequent heating of the conductor may cause further cracking, particularly of the underlying film, but such cracks will not in general coincide with those in the outermost layer. Further underlying films may be similarly provided. The films are produced by anodic coating in a bath of 3 to 4 per cent chromium trioxide, using graphite cathodes, the conductor being first heated, polished, immersed in carbon tetrachloride to free it from grease, washed in soap solution and finally in water. Specifications 397,538, 409,679, and 479,401, [all in Group XXXVI], are referred to.
Patent GB-1294023-A (GB)
Title: Aminopolyhydroxyalkyl phosphonic acid esters
IPC: C08K5/00
Filed: 1970-04-24
Abstract: 1294023 Detergent solutions ATLAS CHEMICAL INDUSTRIES Inc 24 April 1970 [30 April 1969] 19812/70 Heading C5D [Also in Divisions C2 and Dl]  A 0À1% aqueous solution of dimethyl 1- dodecylamine-1-deoxyglucityl phosphonate is used as a surface-active agent.
Patent GB-1146407-A (GB)
Title: Apparatus for reproducing magnetically recorded information
IPC: G02F1/09
Filed: 1967-05-01
Abstract: 1,146,407. Playback of magnetic records by Faraday effect. INTERNATIONAL BUSINESS MACHINES CORP. 1 May, 1967 [20 June, 1966], No. 19928/67. Heading G5R. Apparatus for reproducing information recorded on a magnetizable recording surface comprises a transparent plate or film of a material which exhibits the Faraday effect, means for positioning the recording surface at an angle to the plate or film in close proximity to an edge of the plate or film so that the plate or film is subject to a magnetic field dependent on the information recorded on the surface, means for projecting a beam of plane polarized light through the plate or film, and means for detecting changes in the plane of polarization of the beam produced by the Faraday effect in the plate or film. As shown in Fig. 1, monochromatic light 4 is incident at the polarizing angle (shown, however, as 45 degrees) on a prism 2; the reflected plane-polarized light 7 passes through a transparent film 1 of a material (e.g. a nickel-iron alloy) which exhibits the Faraday effect and which is disposed on a substrate 1A of glass or like transparent non-magnetic material. The plane of polarization is rotated by amounts depending on the information recorded on the surface of magnetic tape 9, which may be moving or stationary. The transmitted light is incident, again at the polarizing angle, on a second prism 3 and the light 13 reflected from there is received by a unit such as a photo-cell, photo-diode or photo-transistor 6. To ensure that the detector unit 6 does not produce equal responses to rotations of the same magnitude but of opposite angular senses, the polarization vector of the light transmitted through film 1, relative to prism 3, must be additionally rotated by a constant amount. This may be done by turning prism 3 about an axis 4, or modifying the prism construction; or by turning or modifying prism 2 appropriately; or by interposing a wave plate in the transmitted light path so that for one condition of magnetic saturation of film 1 no light reaches detector 6, while for the opposite condition the response is a maximum. Fig. 5 shows apparatus for playback of four tracks 31A to 34A on tape. Spaces 31B to 33B between transparent ferromagnetic strips 31, 32 &c. may be coated with black paint to suppress cross-talk. A wave-plate 39 is included. Further light detectors 31E to 34E may be located to intercept light transmitted through the exit prism; then the difference between the response of one of these and the response of the respective reflected-light detector (31D &c.) is indicative of the stored information. The film 1 in Fig. 1 is sensitive to the magnetic record vector parallel to its light-transmitting surface. In Fig. 4 the medium 30 (e.g. gadolinium iron garnet crystal) is sensitive to the magnetic vector MV perpendicular to its light-transmitting surface, and is appropriate to the reproduction of sound effects or of television images.
Patent GB-499589-A (GB)
Title: Improvements in or relating to clutch plates
IPC: F16D13/64
Filed: 1937-07-19
Abstract: 499,589. Friction clutches. BAILEY, R. W. H. July 19, 1937; No. 19930. [Class 80 (ii)] A driven clutch member comprises a plate A, mounted on the driven shaft, an annulus B adjacent to the plate and having riveted thereto a friction facing C, separate springs urging the annulus away from the plate, and blocks D, Fig. 3, secured to the plate and projecting through apertures in the annulus so as to connect the latter for rotation with the plate while flanges E on the blocks limit the axial movement of the annulus. In the form shown in Fig. 2, doubly-bowed radiallyarranged leaf springs G are secured at their centre to the plate, their bowed parts contacting with the annulus. When the clutch is engaged, the flattened springs are accommodated in recesses in the annulus. In the case of a double-faced member, the other facing may be secured to the plate A, or, as shown in Fig. 2, there may be an annulus on each side of the plate. In the form shown in Fig. 4, coil springs K arranged between the two annuli pass through apertures in the plate A.
Patent GB-498324-A (GB)
Title: Process for the treatment of ore or rock containing iron and titanium
IPC: C22B34/12
Filed: 1937-07-19
Abstract: The decomposition of ores or rocks containing iron and titanium, such as iron ore containing titanium, or bauxite, or diallagperidotite (wehrlite) with a large content of ferrous iron and titanium, is effected with a sulphuric acid containing 55 per cent by weight of H2SO4 and saturated at ordinary temperature with ferrous sulphate. Decomposition is preferably effected at the boiling point, that is 130 DEG  C.  The initial ore, mixed or not with bituminous coal, may be heated with alunite to 600-950 DEG  C., if desired in a current of blast furnace gas or water gas, and the mixed decomposition products be then treated with the sulphuric acid containing ferrous sulphate. The solution obtained from the decomposition is brought up to a sulphuric acid content of 75 per cent and ferrous sulphate then separated by cooling.  The residual solution is then diluted to a content of 55 per cent H2SO4, or if at this dilution it contains more than 10 grms.  Al2(SO4)3 per litre to a content of 40 per cent H2SO4, and a first hydrolysis of titanium sulphate then effected at 100-105 DEG  C.  Dilution to at most 20 per cent H2SO4 follows, and the rest of the titanium is then precipitated by a second heating to 100-105 DEG  C. Aluminium sulphate, when present, remains in solution.
Patent GB-1189161-A (GB)
Title: Electrical Floor or Stair Heating Mat
Inventor: MATH FRIEDRICH CHRISTIAN
IPC: F24D13/02
Filed: 1967-05-01
Abstract: 1,189,161. Electrically-heated floors or stairs. KAUFFER & CO. G.m.b.H. 1 May, 1967 [29 April, 1966; 21 Oct., 1966], No. 20061/67. Heading H5H. An electrical heating mat embedded in a floor or stair comprises a metallic heat-distributing grid 1 with interwoven or incorporated heating members or cables 3, electrically insulated therefrom, and current supply conductors 2 or, alternatively, a heating element 19, comprising a plurality of heating cables 8 arranged in parallel and with supply conductors 9, 10 embedded in a stair 17 beneath a mat 18 of structural steel mesh (see also Figs. 5, 6, 7 and 9, not shown). Supply leads 11, 12 and an earth wire 16 are attached. The grid 1 or mat 18 distribute the heat uniformly over the whole surface of the floor or stair and provide mechanical protection for the heating elements. A heating cable comprises a wire 4 woven as a weft wire together with insulating warp threads 5 and embedded in a silicone sleeve 6 of high heat resistance and good electrical insulating properties with an outer resilient sleeve 7 of synthetic material of some mechanical strength. The heating mats are made with water-tight and heat resistant insulation on the current conducting parts.
Patent GB-273916-A (GB)
Title: Improvements in devices or appliances for use in effecting the removal of thick places or portions from yarns or threads being wound or unwound in winding machines, doubling machines, twisting machines, reels, warping machines, beaming machines or other machines or apparatus to, in or from which yarns or threads are to be wound or drawn
IPC: B65H63/06
Filed: 1926-08-14
Abstract: 273,916. Seeley, A. Aug. 14, 1926. Clearing-apparatus. - A device for removing slubs and the like from yarns comprises a body member a having a V-groove h which increases in depth from one end to the other, or from each end, and the bottom of which is curvilinear in a plane as shown in Fig. 1, or spirally as shown at 2 in Fig. 13, a comb l, spike 3, or toothed-wheel x, Fig. 11, co-operating therewith. The comb l is mounted on an arm k pivoted at i so as to be swivelled into and out of position across the groove h, while the member a is graduated and may be set relatively to an index on the support c. Two spilies 3 may be used, while the teeth of the wheel x may be radial spikes or saw-like or of ratchet-form. The Provisional Specification states that the device may actuate a stop-motion, e.g., that described in Specification 235,928.
Patent GB-614264-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/36
Filed: 1946-07-08
Abstract: 614,264. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and FOSTER, J. July 8, 1946, No. 20300. [Class 39 (i)] An electron discharge device comprises a cathode 4, Fig. 2, surrounded by an elliptical anode 10 with radial cooling fins 11. An air blast is directed parallel to the major axis of the anode. The cathode 4 is indirectly heated and is elongated in two mutually perpendicular planes; a control grid 6, screen grid 7, and beam forming plates 8 are provided. The cooling fins are of copper, have a circular outer periphery, and are spaced apart by copper washers ; the fins and washers are soldered together.
Patent GB-1379450-A (GB)
Title: Disperse dyes of the anthraquinone series
IPC: C09B5/24
Filed: 1972-05-02
Abstract: 1379450 Disperse dyes BADISCHE ANILIN- & SODA-FABRIK AG 2 May 1972 [3 May 1971] 20341/72 Heading C4P The invention comprises disperse dyes of the general formula wherein R is halogen, unsubstituted C 1 -C 12  alkyl, unsubstituted C 1 -C 2  alkoxy, -hydroxyalkyl, hydroxyalkoxy, alkoxycarbonyl alkyl or alkoxycarbonyl having 1-3 C atoms in the alkoxy group and n is 0, 1, 2 or 3. They are prepared by reacting a 1-amino-4-nitro- or 1,4 - diamino - anthraquinone - 2 - carboxylicphenylamide with a cyanide, e.g. sodium or potassium, or a compound yielding cyanide ions under the reaction conditions, e.g. acetone cyanohydrin or mandelonitrile, in an organic solvent, or mixture of organic solvents, or mixture of at least one organic solvent and water. Organic solvents used are water-soluble alcohols, ether alcohols, carboxamides and dimethylsulphoxides. The reaction takes place at up to 100‹ C. and the starting material may be prepared in situ by reaction of the corresponding carboxylic acid chloride and amine. When the starting material is a 1,4-diamino-2- carboxyphenylamide, the product mixture contains dye and its leuco form, and the mixture is then treated with an oxidizing agent. The dyes give greenish blue shades on polyesters and cellulose triacetate fibres.
Patent GB-376503-A (GB)
Title: Improvements in collars for wear
IPC: A41B3/08
Filed: 1931-07-16
Abstract: 376,503. Collars for personal wear. EATON, F., 6, Church Street, Manchester. July 16, 1931, No. 20371. [Class 141.] A semi-stiff turnover collar is formed of thick material A along the edge of which a tape B of thinner material is sewn by rows of stitches b, b<1>, to form a false hem, as shewn in Fig. 4. A stainless flexible metal strip C is inserted in the fold of the thicker material A at the front edges of the collar-top, and is permanently enclosed in the said fold by the stitching uniting the tape B to the material A. Tabs a<1> for affixing the collar-top to the collar stud may be provided, if desired.
Patent GB-1376119-A (GB)
Title: Applicator device for cosmetic material
IPC: A45D34/04
Filed: 1973-04-30
Abstract: 1376119 Eyebrow &c combs A COSTA 30 April 1973 [19 March 1973] 20564/73 Heading A4V [Also in Division B8] A container 1 and cover 3, which may be of plastic, for applying cosmetic material to eyelashes or eyebrows includes an applicator stem 6 on which are at least two combs 7, 8. The grooves of comb 8 may extend crosswise to the length of the stem or may be disposed diametrically opposite the grooves of comb 7. A third comb, and also a fourth comb can be provided, the combs then being arranged in T or + formation as seen in cross-section. The lengths of the grooves in each comb differs from that of the other combs. A rubber diaphragm (9) Fig. 2 (not shown) having slits therein is provided in the container 1 to strip excess cosmetic material from the combs.
Patent GB-422863-A (GB)
Title: Improvements in and relating to magneto generators
IPC: H02K21/18
Filed: 1933-07-21
Abstract: 422,863. Magnetos. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and GRIFFITHS, L., 78, Biggin Hall Crescent, Coventry. July 21, 1933, No. 20628. [Class 35] The external diameter of a rotary tubular magneto magnet increases from the middle to its ends and each of its ends is in contact with a polepiece member secured to a spindle passing through the magnet bore. In the form shown, the armature has two polepieces 6 co-operating with six equally spaced rotor polepieces, the polepieces 2 at one end of the reel-shaped magnet 1 being arranged alternately with the polepieces 3 at the other end. Other numbers of polepieces may be used.
Patent GB-1038153-A (GB)
Title: Method of and apparatus for grinding or grinding and dispersing materials comprisingsolid particles in a liquid
Inventor: WADHAM HENRY
IPC: A23G3/02
Filed: 1963-05-23
Abstract: 1,038,153. Grinding. TORRANCE & SONS Ltd. May 23, 1963, No. 20660/63. Heading B2A. Apparatus for grinding or grinding and dispersing liquids containing solid particles comprises a vessel containing a mass of discrete elements, means for agitating the elements and means for varying the working volume of the vessel. As shown, a stationary vessel 1 for batch operation contains e.g. balls or pebbles elements 2, arms 4 or discs, which may be spoked, carried by a rotary or oscillatory shaft 3, and a screen 8 which is adjustable by mechanical means e.g. screws 10 or by pneumatic or hydraulic means. The screws may be carried by a hinged cover 9. Material is drawn into the top of the vessel by means of a circulating pump CP in a line 5 including valves 6 and 7. The treated material is pumped out of the vessel after opening the valve 7; alternatively, the material could be drained past the valve 6. In a modification; an elongated cylindrical, conical or part-conical vessel is employed for continuous operation. Alternatively, the shaft and arms &c. carried thereby may be omitted and the discrete elements activated random fashion by tumbling or cascading in a rotating vessel.
Patent GB-1511018-A (GB)
Title: Arrangements for generating electrical signals by means of magnetic field-dependant semiconductor components
IPC: G01P3/488
Filed: 1975-05-15
Abstract: 1511018 Rotary signal generator SIEMENS AG 15 May 1975 [15 May 1974] 20710/75 Addition to 1395850 Heading G1N(A) An electrical signal generator comprises two magnetic field-dependent semi-conductor components 6, 8 attached by soft iron pole shoes 16, 18 to one pole of a permanent magnet 20, and a spiral control element 4 of soft magnetic material mounted on a non-magnetic disc 2. The pole shoes 16, 18 are fixed by a layer of adhesive 19, and the magnetic circuit is encapsulated in a selfhardening plastics material 10. The arrangement is such that rotation of the disc 2 diverts the flux from one semi-conductor component to the other and reverses their resistance ratio. The said components may be in a bridge circuit.
Patent GB-169837-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/16
Filed: 1920-07-10
Abstract: 169,837. Pulsometer Engineering Co., Ltd., and Young, R. G. July 10, 1920. Wear, preventing, and adjusting for.- The wearing-rings a, b on a centrifugal pump are made radially wider than is necessary to ensure the required wearing- surface, and the extended parts are used to take the screws which secure the rings to the fixed and moving parts. The extensions may be on the inner sides of the rings, as shown in Fig. 2, and are of reduced thickness, or they may be on the outer, sides of the rings, or as shown in Fig. 5, one may be on the inner side and the other on the outer side. With the extensions on opposite sides the rings may be of uniform thickness. To assist in keeping the rings central a shoulder on the pump parts engages the inside of the rings, or a lip e<2> engages the outside.