baber/WOPTO huggingface dataset:
Patent GB-597657-A (GB)
Title: Improvements in marine anti-fouling agents
IPC: F02D11/00
Filed: 1945-06-14
Abstract: An anti-fouling protective coating composition comprises a paint, varnish or lacquer and a proportion of at least ten per cent. by weight thereof of a phenyl mercury compound.  Specified phenyl-mercury compounds are the borate, phthalate, chromate and salicylate.  Paint vehicles specified are natural gum spirit solutions and chlorinated rubber.  Corrosion inhibitors such as the chromates may be present, specified are the barium, strontium, calcium, magnesium, aluminium, lithium and zinc tetraoxy chromates.ALSO:An anti-fouling protective coating composition contains at least ten per cent by weight of the vehicle of a phenyl mercury compound.  Specified vehicles are cellulose derivatives, the glycerol phthalate oil modified resins, pure oil soluble phenolic condensation products such as the para-phenyl phenol formaldehyde condensation product, the acrylic ester resins particularly the mixed butyl and isobutyl methacrylate, and vinyl chloride-vinyl acetate copolymers.  Specified phenyl mercury compounds are the borate, phthalate, chromate and salicylate.  Corrosion inhibitors such as the chromates may be present-specified are the strontium, barium, calcium, magnesium, lithium, aluminium and zinc tetraoxy chromates.ALSO:An anti-fouling protective coating composition comprises a paint, varnish or lacquer and a proportion of at least 10 per cent by weight thereof of a phenyl mercury compound.  Specified phenyl mercury compounds are the borate, phthalate, chromate and salicylate.  The paint vehicles specified are cellulose derivatives, natural gum spirit solutions, varnishes and synthetic resins, the glycerol phthalate oil-modified resins, pure oil soluble phenolic condensation products such as the para-phenyl phenol formaldehyde condensation product, the acrylic ester resins, particularly the mixed butyl and isobutyl methacrylate, chlorinated rubber and vinyl chloride-vinylacetate copolymers. Corrosion inhibitors such as the chromates may be present, specified are the strontium, barium, calcium, magnesium, lithium, aluminium and zinctetraoxy chromates.
Patent GB-562478-A (GB)
Title: Improvements in and relating to rotary engines
IPC: F02B53/00
Filed: 1942-10-29
Abstract: 562,478. Rotary engines. FARESO, SEN., J., and OWEN, B. J. 'CRADOC-. Oct. 29, 1942, No. 15204. Drawings to Specification. [Class 110 (ii)] A rotary engine, pump or compressor of the rotary abutment type has a recessed rotor wider than the co-operating rotor with one or more projecting pistons, the ends of the recesses being covered to seal the pistons during meshing. Each rotor has split sealing rings which are bevelled and under pressure of oil supplied by an external pump coupled to a rotor shaft and have radial projections to prevent rotation. Each piston has channel - shaped sealing members pressed outwards by oil under pressure to bear against the split rings. Sealing blocks are used in the stator near the point of contact of the two rotors. The oil circulated acts as a cooling and lubricating medium. An oil pressure regulating valve may be used. As applied to an internal-combustion engine, a compressor and an engine are arranged side-by-side in the same shafts, which are geared together. Working-fluid transfer ports are provided in the separating wall under control of a rotary disc with an arcuate slot. Combustible mixture is supplied to the compressor by a carburetter. The settings for the opening and closing of the arcuate valve slot are given in the Specification. The invention may be applied to a steam engine. Specification 562,501 is referred to.
Patent GB-309333-A (GB)
Title: A new or improved instrument for stopping teeth
IPC: A61C5/62
Filed: 1928-05-24
Abstract: 309,333. Sidler, F. May 24, 1928. Dental instruments.-An instrument for introducing amalgam into tooth cavities comprises a flat rectangular container 3 fitted with a piston 12 adapted to move the amalgam forward into the path of a smaller piston 6, by means of which it is forced through an outlet pipe 4 into the cavity. The large piston 12, which is attached to a cable 13 passing through a tube 2 and the hollow handle 1 of the instrument, can be pressed forward by means of a knob 13a in opposition to a spring 14. The other piston 6, which is worked alternately with the first, moves in the guiding tube 5 and is operated by the levers 7, 8. In a modification, Fig. 3, the outlet pipe 24 is coaxial with the tube 2, which in this case carries the smaller ejecting piston 26, whilst the larger piston 32 at right angles is operated by levers. The container 23 is formed with a tube 21 engaging with the tube 2 by a bayonet joint. For filling the container, one wall 15 of which is removable, a funnel the stem of which can be closed by means of a slide. and a ramming device for forcing in the amalgam, are provided.
Patent GB-664639-A (GB)
Title: Pneumatic conveyor system for products of corn grinding
IPC: B02C9/04
Filed: 1949-06-08
Abstract: 664,639. Pneumatic conveyers. SAIB SOC. APPLICAZIONI INDUSTRIALI BREVETTI. June 8, 1949. [June 8, 1948; Aug. 19, 1948] Nos. 15328/49 and 1.5329/49. Class 78 (i). A pneumatic conveyer system for a corn grinding mill consists of a system of conduits connecting various grinding apparatus to one another in a desired sequence and leading finally to storage chambers for the final products so that the final products consist of mixtures of a desired number and proportion of the products of each grinding apparatus, such a system being characterised in that each of the said conduits includes a filter through which the conveying air passes, so as to completely separate from it the products, the filtered air then requiring no further filtering. In the embodiment shown, a grinding mill consists of grinding apparatuses A1 ... A14, chambers R1 ... R13 where the products of one or more of the grinding apparatuses are separated from the conveying air and are mixed, and sacking stations X1 ... X5 for the final products, the mixing sequence being determined by the layout of the conduits E leading from one or more of the grinding apparatuses to the chambers R1 ... R13 and the conduits G leading from the chambers R1 ... R13, to further grinding apparatus or to the stations X1 ... X5. Air is drawn through the system by either a fan B or fans B1, B2, B3. Each of the chambers R1 ... R13 contains a filter and the chambers preferably consist of cyclones. Owing to the presence of a filter in each chamber R1 ... R13, there are no residual products in the air reaching the fan or fans. In a second embodiment there is a separate fan associated with each of the chambers R1 ... R13, instead of using a single fan B or the three fans B1, B2, B3. In a third embodiment, air is blown into the grinding apparatuses instead of being sucked from the chambers R1 ... R13 as shown.
Patent GB-853277-A (GB)
Title: Improvements in or relating to inverter circuits
IPC: H02M7/5383
Filed: 1958-05-14
Abstract: 853,277. Transistor inverter circuits. WESTINGHOUSE ELECTRIC CORPORATION. May 14, 1958 [May 29, 1957], No. 15456/58. Class 40(6). In a transistor inverter circuit of the type in which the primary winding of a transformer is connected in series with the output electrodes of the transistor and the D.C. input supply and in which a secondary winding causes the transistor to become conducting and non-conducting alternately, an impedance is modulated in the said series circuit to drop some of the reverse voltage that would otherwise be applied across the transistor and a resistor is connected across the transistor, having a valve lower than the leakage resistance of the transistor. The Figure shows an inverter comprising a transformer 9 having a square loop core and connected in push-pull are two series chains of transistors. The reverse voltage across the transistors is equalized by shunting the transistors by equal resistors having a value lower than that of the leakage resistance of the transistors. N.P.N. transistors may replace the P.N.P. type shown (Fig. 2 not shown). Specification 766,868 is referred to.
Patent GB-119130-A (GB)
Title: Improvements in or relating to Rotary Pumps for Fluids.
Inventor: SCHULTZ EMILE JOSEPH AUGUSTIN
IPC: F04C2/14
Filed: 1917-10-24
Abstract: 119,130. Schultz, E. J. A. Oct. 24, 1917. Plant; movable-abutment type; compensating for irregularity of flow; discharge and suction pipes; mounting pistons on shafts; regulating. - Rotary pumping apparatus of the Roots'-blower type for delivering separately and simultaneously a number of fluids comprises a casing divided by partitions D, E into a number of chambers of different capacities haveach its own inlet and outlet conduit and provided with intermeshing gear pistons a, a<1>, b, b<1>, c, c<1> mounted freely on parallel shafts C, C', the driving-shaft C having loose pins e<1>, e<2>, e<3> engaging recesses in the pistons mounted thereon. The left-hand chamber may be forpumping water, the middle for pumping lubricant, and the right-hand for pumping fuel, the temperature of the lubricant being raised by its proximity to the cooling-water chamber. The fuel chamber may be provided with a by-pass H, Fig. 3, between the inlet side o<1> and the outlet side o<2> of the chamber, a spring-pressed valve I regulating the proportion of fluid flowing therethrough. The flow of lubricant may be regulated by a by-pass l fitted with a spring-pressed valve i adjusted by a screw member allowing liquid to return to the suction side. To promote the circulation of water at a small speed through a large duct, the pump may draw water by a pipe of small cross-section located in an enlargement of the duct and return it through a second similar pipe opening also into the enlargement and situated back to back with the first pipe, the second pipe having a contracted nozzle to accelerate the flow.
Patent GB-942586-A (GB)
Title: An improved composition and process for colouring textile fibres
IPC: C08G77/26
Filed: 1961-04-28
Abstract: Compositions for colouring textile fibres comprise (I) an aqueous solution or dispersion of (A) a water-miscible organosiloxane copolymer consisting essentially of polymeric units (1) of the general formula R11x(ZnR1)SiYzO 3-x-z/2 where R1 is an aliphatic hydrocarbon radical containing one or more than 2 carbon atoms and having a valency of n+1 where n is an integer, Z is a monovalent radical attached to R1 by a carbon-nitrogen bond and is composed of carbon, nitrogen and hydrogen atoms and contains at least 2 amine groups, the ratio of carbon atoms to nitrogen atoms in -R1Zn being less than 6:1, each R11 is a monovalent hydrocarbon radical free from aliphatic unsaturation, Y is a hydroxyl or -OR radical where R is an alkyl radical containing less than 4 carbon atoms, x is 0, 1 or 2, z is 0, 1 or 2 and x+z is 0, 1 or 2, and polymeric units (2) of the general formula R111ySiYm O 4-y-m/2 where each R111 is a monovalent hydrocarbon radical or a halogenated aryl radical, Y is as defined above, y is 0, 1, 2 or 3, m is 0, 1 or 2 and y+m is 1, 2 or 3, there being at least 5% by weight of the (1) units present in the copolymer and the copolymer having an average degree of substitution of at least one organic group attached directly to silicon by carbon silicon bonding per silicon atom and said copolymer having an amine nitrogen content of at least 0.5% by weight or (B) a water dispersible salt of (A) with an acid and (II) a textile dyestuff. The compositions may also contain water-miscible solvents, e.g. lower alkanols, dioxan and tetrahydrofuran and wetting agents such as the trimethylnonyl ether of polyethylene glycol. Many dyes and pigments are listed and examples are given.  Specifications 686,212, 746,307, 766,864, 858,445, 872,138, 889,001 and 942,587 are referred to.ALSO:Natural and synthetic textile fibres and films are coloured using aqueous solutions or dispersions of organosiloxane-polyamino-organosiloxane copolymers (see Division C3) or their salts containing a dyestuff.  In a modification of the process the textile fibres are pre-treated with an aqueous solution or dispersion of the copolymer or its salt and then coloured by conventional means or vice versa.  Fibres specified are cellulosic fibres such as cotton, linen or wood; protein fibres such as wool or silk and synthetic fibres, e.g. glass, acrylic, aromatic polyester and nylon.  Many dyes and pigments are specified.  The aqueous solutions or dispersions may contain wetting agents and may be applied by, for example, padding, spraying and immersion.  Examples are given.  Specifications 686,212, 746,307, 766,864, 858,445, 872,138, 889,001 and 942,587 are referred to.
Patent GB-951139-A (GB)
Title: Quenching oil composition
IPC: C21D1/58
Filed: 1962-04-24
Abstract: A quenching oil composition comprises 0.1 to 2% of an oil-soluble alkali metal or alkaline earth metal sulphonate added to the composition of the parent Specification.  Optional ingredients are also similar and exemplified.
Patent GB-897375-A (GB)
Title: Synchronous capacitor with hydrogen gas filling
IPC: H02K9/00
Filed: 1960-05-04
Abstract: 897,375. Cooling dynamo-electric machines. BROWN, BOVERI & CIE. A.G. May 4, 1960 [May 4, 1959], No. 15696/60. Drawings to Specification. Class 35. [Also in Group XIII] A synchronous electric capacitor is cooled partly by a cooling medium (such as oil, water or a gas) circulated through hollow stator conductors, and possibly also through stator core ducts, and re-cooled in a cooling mediumair cooler; and partly by hydrogen which fills the remainder of the machine casing and circulates through a hydrogen-air cooler. The rotor winding may also be provided with a hollowconductor cooling system. If hydrogen is also used as the cooling medium a single cooler may be employed.
Patent GB-185239-A (GB)
Title: Improvements in motion picture machines
IPC: G03B21/20
Filed: 1921-06-07
Abstract: 185,239. Thornton, A. A., (De Vry Corporation). June 7, 1921. Electric-lamp lanterns and casings. - The detachable lamp-house of a kinematograph projector comprises a front wall 35, a rear wall 36, one side wall 37, a bottom 38, and a top 39 rigidly secured together, the top 39 being formed with V-shaped guides 40 adapted to slide on V-shaped bars 41, 42 bolted to the casing 9 of the projector, the bolts for the bar 42 engaging slots to provide for adjustment of the bar to vary the position of a stop 44 which limits the inward movement of the lamp-house. A spring-latch 47, Fig. 3, engages a tongue on a plate 49 adjustably secured to the top of the. casing 9 to prevent outward movement. The open side of the lamphouse in this position loosely encloses a flanged plate 55, Fig. 3, secured to and spaced from the wall of the casing 9 by bolts 56. The top 39 is provided with a deflector 60<a> over an opening 60, and the casing 9 is formed with an air outlet 61 provided with a perforated plate 62. Cooling air is circulated by a fan driven by the motor 17. The reflector 65 is secured in an opening in the wall 36 so that its rear surface may be cooled by the air current to prevent deterioration of the reflecting surface by heat.
Patent GB-529796-A (GB)
Title: Cuprous chloride-potassium chloride catalyst for polymerising acetylene to vinylacetylenes
IPC: C07C2/38
Filed: 1939-05-26
Abstract: 529,796. Vinyl-acetylenes. DU PONT DE NEMOURS & CO., E. I. May 26, 1939, No. 15791. Convention date, May 26, 1938 [Class 2 (iii)] In the production of vinyl acetylenes and related compounds by polymerization of acetylene. a catalyst is used containing 19-30 per cent. of potassium chloride, 40-51 per cent. of cuprous chloride and 30 per cent. of water and preferably hydrochloric acid. Examples are given, in one of which the products are dried over calcium carbide and condensed by cooling at -60‹C. The chlorine in the product is estimated periodically and a corresponding quantity of hydrochloric acid added to maintain the composition of the catalyst. Specifications 438,548, 445,358 and 451,442 are referred to.
Patent GB-587361-A (GB)
Title: Improvements in or relating to apparatus for heating by high frequency electric currents
IPC: H05B6/78
Filed: 1944-08-18
Abstract: 587,361. Dielectric heating. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. Aug. 18, 1944, No. 15814. [Class 39 (iii)] In a high frequency dielectric heating apparatus, one or both electrodes 6, 11 are mechanically connected with a door 2 of metal screening cage 1 so that when the door is opened the electrodes are separated to facilitate removal &c. of the heated material. The cage may be of perforated or mesh material to allow gases &c. to escape and the material to be observed. In one example, Fig. 1, the upper electrode 11 is carried by arms 12 pivoted at 13 and connected through an arm 14 and link 15 to the door 2 hinged at 3. The electrode 11 is automatically moved to position 11a when the door is closed, a balance weight 5 maintaining the door in either open or closed position as desired. The lower electrode 6 is vertically adjustable in slots 9 in supports 10. In a modification, Fig. 2 (not shown), particularly suitable for electrodes of large area, the door and upper electrode are vertically slidable, being connected through a chain and cam mechanism so that opening of the door raises the electrode. The chain is attached at one end to the door and at the other to a balance weight, and passes over sprocket wheels, one of which has its axis' fixed to the cam. The cam is spiral shaped and engages a roller adjustably connected to vertical rods which support the upper electrode, so that the working distance between the electrodes can be altered from outside the screening cage. According to the Provisional Specification one electrode may also be connected to the vertically moving door by a rack and pinion device or by means of levers.
Patent GB-1389014-A (GB)
Title: Optical code reading systems
IPC: G06K7/10
Filed: 1971-05-19
Abstract: 1389014 Code carrying device PLESSEY CO Ltd 19 May 1972 [19 May 1971] 15906/71 Heading G4M [Also in Division H4]  A code carrying substrate has an integral guide to align a light pen with a line of bar markings or has a guide on a separate sheet which may overlay the line of markings to align the pen. The guide may consist of ribs or grooves. The code may be a telephone number and a hand held reader may be used to "dial" direct from the code or the code may be storekeeping records or for use for theatre bookings, lending libraries &c.
Patent GB-1147395-A (GB)
Title: Containers of cardboard or the like material
Inventor: HOLDSWORTH KEITH
IPC: B65D5/50
Filed: 1967-04-07
Abstract: 1,147,395. Containers. FIELD, SONS & & CO. Ltd. 4 Jan., 1968 [7 April, 1967], No. 16054/67. Heading B8P. A container for displaying small articles comprises an outer box formed of two box parts hinged together and a display unit 16 located within the outer box so as to extend across the hinge and pivotally attached to the inside of the box by means of projections 22 which engage in slots in the walls of the box parts so that when the outer box is opened the display unit is exposed to view but is retained within the outer box. The display unit is formed with a tray 24.
Patent GB-476495-A (GB)
Title: Improvements in devices for use in darning or weaving fabrics
IPC: D04B17/00
Filed: 1936-06-09
Abstract: 476,495. Weaving and darning devices. BOERNER, A. June 9, 1936, No. 16058. [Class 142 (ii)] A device for weaving or darning stockings &c. of the kind wherein the work 8 is stretched over a block 5 and a frame 1 carrying a number of cranked and hooked oscillatable shedding members 14, 15 is secured thereto, has a peripheral slot 4 in the block 5 and the frame 1 has a flange 3 to engage the said slot, the frame being secured to the block 5 and the work to the block by a band or spring 7 also engaging the slot 4. The members 15 can be held in their mid positions by a bar 16 threaded through the cranks while a warp thread 17 is being passed through the work at one side of the hole 9 and over the several hooks 15. The cranks are knocked first one way and then the other to shed the warps 17 and the weft is passed through the shed with the aid of a needle.
Patent GB-120418-A (GB)
Title: Insulator and Binder for Telegraph, Telephone, Electric and other Wires.
Inventor: SPENCER ALEXANDER
IPC: H01B17/22
Filed: 1917-11-05
Abstract: 120,418. Spencer, A. Nov. 5, 1917. Insulators.-An insulator for supporting telephone &c. conductors comprises a lower member 2 having a screw-threaded hole therethrough in which a metal standard 1 is adapted to be screwed, and an upper member or cap 5 having a screw-threaded part. 7 to engage in the hole in the member 2 and secure the conductors 4 in grooves in the top face of the lower member. In a modification. the cap screws upon the projecting end of the metal standard.
Patent GB-459234-A (GB)
Title: Method of producing films in natural color
IPC: G03C7/26
Filed: 1935-06-04
Abstract: 459,234. Colour photography. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Crespinel, W. T. ; 2041, North Vermont Avenue, Los Angeles, U.S.A.) June 4, 1935, No. 16106. [Class 98 (ii)] A colour positive is produced on a film having two superimposed emulsions by printing thereon from red and blue component negatives, developing the images, mordanting the upper image with a solution containing potassium iodide as principal constituent, arresting the action with bisulphite solution, applying basic dye, and removing excess, and toning the lower image with a solution having no affinity for the upper image mordant, and clearing the toned image to render it more transparent by treatment with potassium iodide solution. The film may comprise a celluloid. base, a gelatine substratum, an emulsion a second gelatine substratum and a second emulsion. A yellow dye is incorporated either in the emulsions or in the second substratum. The red component negative is printed on the lower emulsion through the base, and the blue component negative on the upper emulsion either simultaneously or successively. Lamps of different intensities may be used for the two components. Development is effected preferably with anidol, and the film is fixed, washed and dried, and treated with a solution of potassium iodide, iodine, and acetic acid. The film is washed, treated with a potassium metabisulphite or sodium bisulphite bath, washed, treated with a bath containing Chrysoidine Y, Safranine Y, and acetic acid, and washed. The lower image is toned blue in a bath containing ammonium persulphate, ferric alum, potassium ferricyanide, and acetic acid, washed, and fixed with potassium iodide solution. In a modification the upper image is dye-toned blue-green with malachite green, and the lower image red-toned with potassium oxalate, uranium nitrate, potassium ferricyanide, and hydrochloric acid.