baber/WOPTO huggingface dataset:
Patent GB-466804-A (GB)
Title: Improvements in or relating to means for operating vehicle brakes
IPC: F16D65/22
Filed: 1935-12-05
Abstract: 466,804. Brakes. CLAYTON DEWANDRE CO., Ltd., and EDGE, S. H. Dec. 5, 1935, No. 33754. [Class 103 (i)] A brake-shoe operating - wedge e is connected by a common spindle d to two pistons i, j in separate cylinders a, b. The cylinders are connected on one side of the pistons to a source of vacuum by passages t, u, v, wand on the other side of the pistons to atmosphere by passages x, y. A cup leather p prevents leakage between the cylinders. The pistons may be operated by compressed air and may exert a pull or push on the cam. The cam shown is the wedge type.
Patent GB-1248331-A (GB)
Title: Improvements in blast furnace operations
Inventor: BLELOCH WILLIAM
IPC: C21B5/06
Filed: 1969-07-07
Abstract: 1,248,331. Blast furnace operation. ELECTROHEAT (PTY) Ltd. July 7, 1969, No. 34079/69. Heading C7D. In a blast furnace, after kindling using a blast of air or oxygen-enriched air, a blast is used which is predominantly a mixture of O 2  and a proportion of the furnace top gas, the top gas being partially recycled so as to reduce the N 2  content thereof, desirably to < 5% by volume. When titaniferous ores are being smelted, formation of infusible titanium nitride and carbonitride is thus reduced. The top gas is cleaned conventionally prior to compression and feeding to the tuyeres separately from the O 2  so that the two gas streams mix only within the furnace. The invention relates particularly to extraction of Fe, but may be applied to reduction of ores containing P, Si, Mn, Cr, and V.
Patent GB-1434538-A (GB)
Title: Blow-guns
IPC: B05B9/01
Filed: 1973-07-18
Abstract: 1434538 Valves J P GEOFFRAY 18 July 1973 [19 July 1972] 34226/73 Heading F2V [Also in Division F4] A blow gun for delivering a jet of compressed air through a nozzle 16 incorporates a pressure regulator operated by a lever or trigger 4. Movement of the lever 4 which is pivoted at 5 effects axial movement of a cylindrical push-rod 6 and its associated integral tubular shank 6a. The axial position of rod 6 determines the pressure of the air issuing from nozzle 16. The shank 6a is received with clearance inside a piston provided with an axially disposed tubular member 7 and which in turn is slidable within a chamber 2a, with two gaskets 8 ensuring sealing of the piston ; the piston is urged in the direction of the nozzle 16 by a calibrated spring 10 the force of which is normally opposed by the compressed air filling the space in the chamber 2a above the piston 7 until an equilibrium situation is achieved. A valve 11 of square section is mounted to bear against the free end or seat of the tubular member 7 under the action of a spring 12. Compressed air is supplied through a pipe 15, and a filter 13 is included upstream of the valve 11. When the lever 4 is in its closed position the valve 11 is retained against the end of the tubular member 7 so there is no flow of compressed air to the nozzle 16. Movement of the lever 4 from its closed position causes the push rod 6 to be displaced axially so that the shank 6a pushes the valve 11 downwardly away from the end of the tubular member 7 against the spring 12; compressed air then passes to the nozzle 16 via the interior of the tubular member 7 and longitudinally extending channels id. The end of stroke position of the lever 4, i.e. the maximum pressure prevailing in the nozzle 16, is regulated by means of a screw 17. In the case of accidental excess pressure occurring in the nozzle, the pressure responsive member constituted by the piston and tubular member 7 moves beyond the normal position for closing the valve 11 such that the end of the tubular shank 6a of the push-rod 6 is uncovered and the overpressure vented via channel 6b and aperture 1b. Operation of the lever 4 may be controlled cyclically, e.g. by means of a cam.
Patent GB-774868-A (GB)
Title: Improvements in or relating to water-dispersible copolymeric resinous materials
IPC: C09D167/00
Filed: 1955-11-30
Abstract: A linear copolymer, having a viscosity of at least 1000 centipoises in a 30 per cent solution in methyl ethyl ketone, of an aromatic monovinyl compound, e.g. styrene, vinyl toluene, vinyl naphthalene, a -methyl styrene and nuclear substituted styrenes, and an a ,b -ethylenicallyunsaturated dicarboxylic acid or anhydride, e.g. maleic, fumaric, citraconic, itaconic, aconitic and chlormaleic acids and anhydrides, in the molar proportions of 1:1 to 4:1, is co-condensed by heating with an alkyd resin having at least 10 per cent excess hydroxyl equivalents.  The copolymer is prepared by adding the aromatic monovinyl compound, over a period, to a heated solution of maleic anhydride in methyl ethyl ketone and maintaining the temperature and adding solvent until the required viscosity is reached.  The alkyd resins may include drying, semi-drying, and non-drying, animal and vegetable oil-modified types and may also be modified by monohydric alcohols, rosin and monocarboxylic acids, e.g. soya bean and dehydrated castor oil-pentaerythritol-phthalic anhydride resins. The co-condensation products are prepared by heating the mixture in a methyl ethyl ketone solution at 180 DEG  F. and precipitating as a powder with toluene.  The products are dispersible in aqueous alkaline solution, e.g. 5 per cent ammonia, sodium or potassium hydroxide, and water-soluble amines and form gels at low concentrations.  They may be used as paper coatings, label varnishes, thickeners in aqueous coating compositions, protective colloids in emulsion paints, sizing agents in plaster primers, glazes and gum substitutes, e.g. 1 per cent of the co-condensation product of a soya bean oil - pentaerythritol - phthalic anhydride alkyd and maleic anhydride-styrene copolymer increases the viscosity of a styrene-butadiene latex emulsion paint.
Patent GB-366621-A (GB)
Title: Improvements in or relating to chaff cutting and like machines
IPC: A01F29/10
Filed: 1930-11-15
Abstract: 366,621. Machines for cutting chaff &c. EIRICH, L. and EIRICH, J., Hardheim, Baden, Germany. Nov. 15, 1930, No. 34482. Convention date, Nov. 18, 1929. [Class 5 (i).] Chaff or like material is fed to a knife by two endless band conveying devices A, B, the upper A of which is carried by a frame b adapted to rock on pivots c. A toothed driving wheel u, mounted on one of the pivots c, drives the sprocket wheels d of the upper band through a toothed wheel r and the sprocket wheels d of the lower band through wheels s, t. The band A travels at the discharge end C round rollers i on a shaft g that projects at each end into slots e in the frame. Arms o fixed on the shaft g carry toothed sectors meshing with internally toothed sectors p<1> fixed to the housing; a lever p provided with an adjustable weight is secured to one of the arms o and tends to hold the front end of the frame b with the top band A depressed. Guard-plates are fitted on the shaft g and ledges project from the side walls of the housing to support the courses of the band devices. A presser h extends forwardly from two brackets on the frame b the front edge of this frame being set back a little from a lip at the bottom of the discharge opening.
Patent GB-386416-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/00
Filed: 1931-12-12
Abstract: 386,416. Knitting-machines. BUCKLER & CO., Ltd., W., Crown Mills, Walnut Street, and LEICH, H. H., 165, Upperton Road, both in Leicester. Dec. 12, 1931, No. 34503. [Class 74 (ii).] A dividing or other cam 1, for use in conjunction with needle -selecting devices of a circular plain or rib machine and adapted to swing or slide outwards from the needle cylinder, is provided with a forward extension 9 which, on being engaged by the butt c of a misplaced needle, jack, or the like, is moved tangentially to the needle cylinder against the action of a spring 14 and is finally pressed behind a retaining shoulder 18 on the main cam 1. When the misplaced butt strikes the bevelled nose 5 of the cam 1, the latter, with its extension 9, is moved outwards against the action of a spring 8 thereby allowing the butt to pass without causing damage to the machine. The selecting device and the cam are so disposed relatively that in the normal position the forward extremity of the extension lies just under or beyond the point where the selected needles leave the selecting device, so that the butts of those needles do not have to pass through a gap between the selecting device and the dividing cam nose. The radial movement of the cam 1 may be used to effect stoppage of the machine by providing a plunger 19 which on being moved outwards positions a yarn guide dropper to operate a stop-motion.
Patent GB-1279684-A (GB)
Title: Improvements in or relating to mechanical control devices
Inventor: BROOKE WILFRID
IPC: B66D1/22
Filed: 1969-07-09
Abstract: 1279684 Epicyclic gearing W BROOKE and H HOWE 9 July 1969 34515/69 Heading F2Q [Also in Division B8] A planetary gear train comprising a fixed sun gear 1, an output sun gear 9, and a stepped planet 7, 8 on an input carrier 5, the gear sizes being such that the output gear 9 rotates in the opposite direction to the carrier 5, is used to prevent run-back or over-run in a hoist drive. Drive in either direction of rotation is transmitted from the input shaft 4 via the train to a winding drum 10 but the load on the drum 10 cannot drive the shaft 4 in either direction under certain combinations of gear ratio and gear efficiency. In a modification (Fig. 4, not shown) the drive is applied to an external gear formed on the carrier (5), which has two stepped planets diametrically opposite each other.
Patent GB-459741-A (GB)
Title: Improvements relating to tanks for the transport of liquids over all types of ground
IPC: B60P3/22
Filed: 1935-12-12
Abstract: 459,741. Tank - vehicles; brakes. TECALEMIT, Ltd., Great West Road, Brentford, Middlesex. Dec. 12, 1935, No. 34547. Convention date, Dec. 13, 1934. [Class 108 (i)] [See also Group XXXIV] A mobile tank for liquids comprises a receptacle in the form of a volume of revolution, a hauling frame rotatably secured to the axis, coupling means for a tractor or another tank, the coupling means being so articulated that the train of tanks may follow a curvilinear path over irregular ground. A closed tank 1 comprising a central cylindrical portion with truncated ends is provided with tyres or hoops by which it is rolled upon the ground. A hauling device 5 is removably connected by side members 6 to the tank at the ends of its central axis and to this end the tank may be provided with a through axle 4 the projecting ends of which fit cap bearings in the frame and are removably retained therein by a pin. In another form an axle 13 may engage bearings 12 contained in a socket 12 in the ends of the tank and the stub axles 13 may be removably clamped in the frame or the side frame members 6 may be articulated to the frame 5 at 25. The hauling frame is provided at the front with a telescopic spring draught bar 26 articulated to the frame for coupling to a tractor, while the rear of the frame is also provided with a coupling connection to permit tanks to be coupled in series. A brake arrangement to prevent overrunning comprises bands 31 connected to the rear of the frame, and provided with shoes adapted to bear on the tank. The bands at the front are connected to a lever 44 pivoted at 45 and articulated vertically above the axis 28 to a bell-crank lever 46 connected to the front of the coupling so that shortening of the draught bar 26 causes the brake shoes 42 to contact with the tank and check its revolution. The hoops or tyres may be mounted on wheels arranged on the ends of the central axle.
Patent GB-630783-A (GB)
Title: Improvements in or relating to electric circuit interrupters having arc-extinguishing means
IPC: H01H9/44
Filed: 1947-12-30
Abstract: The insulating plates of the arc-chute of an electric switch (see Group XXXVII) are composed of 50 to 100 parts by weight of zircon and 10 to 50 parts by weight of fluxing agents.  A preferred composition is zircon-77 parts, Ca CO3-8 parts, Kentucky Ball Clay-10 parts, and Florida Kaolin-10 parts.
Patent GB-1483501-A (GB)
Title: Denture cleansers
IPC: A61K8/20
Filed: 1974-08-06
Abstract: 1483501 Denture cleansers COLGATEPALMOLIVE CO 6 Aug 1974 [9 Aug 1973] 34589/74 Heading C5D Solid denture cleansers, which may be in powder or tablet form, and which on mixing with water effervesce and dissolve therein to form a solution for soaking dentures, comprise a dry, stable mixture of a peroxygen compound which yields active oxygen on admixture with water, a chlorine compound which liberates hypochlorite chlorine on contact with water and a water-soluble, anhydrous, alkaline salt to give the solution a pH of 9 to 11À5, the peroxygen compound being reactive with other components of the mixture in the presence of water to liberate bubbles of gas effervescently and the chlorine compound being present in amount sufficient to provide such amount of hypochlorite chlorine that the atomic ratio of hypochlorite chlorine to active oxygen of the peroxygen compound is greater than 1À1 : 1 and to provide at least 100 p.p.m. of hypochlorite chlorine in the solution after effervescence has ceased. The peroxygen compound may be sodium perborate, potassium monopersulphate or sodium carbonate peroxyhydrate. The chlorine compound may be sodium or potassium dichloroisocyanurate, or trichloroisocyanuric acid. The alkaline salt may be sodium carbonate or trisodium phosphate. The cleansers may comprise two colouring agents both of which may be bleached by the solution but the first being bleached more rapidly than the second, so that the solution may change colour on standing. The cleansers may contain anionic, nonionic, cationic or amphoteric surfactant to promote foaming during effervescence. The tablets may contain binders, lubricants or disintegrating aids.
Patent GB-448047-A (GB)
Title: Improvements in or relating to means for indicating consumption on gas meters
IPC: G01F15/07
Filed: 1934-12-03
Abstract: 448,047. Counting - apparatus. CARPENTER, C. C., SMITH, C. H., and SOUTH METROPOLITAN GAS CO., 709, Old Kent Road, London. Dec. 3, 1934, No. 34696. Drawings to Specification. [Class 106 (i)] The indicating mechanism of a gas meter comprises a dial graduated to show one cubic foot or an integral multiple of one cubic foot and a number of further dials graduated in therms so that they give a reading of one therm and of integral multiples of one therm. The gearing between the cubic-foot pointer and the first therm pointer is arranged so that other gearing can readily be substituted for it when the meter is to be used for measuring gas of a different thermal value.
Patent GB-960787-A (GB)
Title: Engraving process
IPC: B23H9/06
Filed: 1962-09-11
Abstract: 960, 787. Photo-mechanical printing surfaces. NASSOVIA WERKZEUGMASCHINENFABRIK G.m.b.H. Sept. 11, 1962 [Sept. 11, 1961], No. 34716/62. Heading G2M. The surface of a body of electrically conductive material is engraved by coating the surface with a heat-resistant electrically insulating photosensitive layer, producing in the layer a latent image of the original, removing the unexposed parts of the layer to uncover the said surface and spark-eroding the surface to produce an engraving of the original. The erosion may be effected by making the body one of the electrodes, the other electrode, either cylindrical or rectangular,being suspended over the body and being passed over the surface of the body. Bichromated shellac is specified as the light-sensitive material.
Patent GB-398064-A (GB)
Title: Process for the manufacture of mixed anhydrides of boric acid and organic acids
IPC: C07F5/02
Filed: 1932-12-07
Abstract: Triacidyl borates are prepared by heating boric acid or its anhydride with one or more organic acids, other than acetic acid, in the presence of at least an equivalent quantity of an inorganic acid chloride or organic acid anhydride.  When preparing borates of the higher organic acids, it is preferable to employ the anhydrides of lower organic acids in the conversion.  According to the examples, (1) tristearyl borate is obtained by heating stearic acid with boric acid or boron trioxide and acetic anhydride, and distilling off the acetic acid formed together with the excess of acetic anhydride; similar products result by replacing the stearic acid with lauric acid, coconut oil acids or benzoic acid; (2) cinnamic boric anhydride is prepared by heating cinnamic acid with boric acid in the presence of thionyl chloride until the evolution of hydrochloric acid ceases. Other inorganic acid chlorides mentioned are phosphorus tri- and pentachlorides.
Patent GB-303742-A (GB)
Title: Improvements relating to the dehydration of aqueous formic acid
IPC: C07C51/46
Filed: 1928-11-27
Abstract: 303,742. Distilleries des Deux-Sevres. Jan. 7, 1928, [Convention date]. Formic acid.- Anhydrous formic acid is obtained from aqueous solutions by distillation with an entraining body capable of forming with water an azeotropic mixture of minimum boiling point, and a diluent liquid which prevents the formic acid from distilling over with the azeotropic mixture. The resulting mixture of formic acid and diluent may be separated bv fractional distillation or distillation with entraining bodies such as benzene toluene, xylene, certain petroleum hydrocarbons butyl chloride and chlorinated derivatives of ethylene. In an example, formic acid from a reservoir, is distilled in a column 3 with isobutyl formate as water entrainer, and normal amyl formate as diluent, the latter being stored in a reservoir 2. A mixture of water and isobutyl formate boiling at 80.4‹ C. collects in a receiver 7 and separates in a reservoir 8 into two layers of which the aqueous layer is rejected and the other of normal amyl formate and formic acid is returned to the top of the column. The mixture separated in a column 11, waste heat being utilized in a coil 16 in the column 3. Anhydrous formic acid is collected in a condenser 13, and amyl formate is returned to vat 2 via a heat interchanger 15. A single liquid may serve both as entrainer and as diluent. Examples of such liquids are formic esters such as butyl, amyl and isoamyl formates, and dibutyl ether.
Patent GB-969040-A (GB)
Title: New esters of reserpilic acid and the preparation thereof
IPC: C07D491/22
Filed: 1961-09-28
Abstract: The invention comprises compounds of the general formula: <FORM:0969040/C1/1> (wherein R5 and R6 each represent an unsubstituted C1- 5 alkyl radical) and their addition salts with pharmacologically acceptable acids; the preparation thereof by converting reserpiline to reserpilic acid and esterifying this so as to replace the hydrogen atom of the carboxyl group by a dialkylaminoethyl group, and, if desired, precipitating the ester as an acid addition salt; and pharmaceutical compositions containing the products together with a pharmaceutical vehicle. The conversion of reserpiline to reserpilic acid may be effected by saponification in an alcoholic or aqueous alcoholic medium, the acid being advantageously precipitated as hydrochloride and then liberated from the latter by dissolving it in a solvent and adjusting the pH to the isoelectric point with alkali, or by stirring the hydrochloride in an alcoholic medium with excess of silver carbonate. The esterification may be effected by heating the acid with a dialkylaminoethanol in a solvent forming an azeotropic mixture with the liberated water, or by reacting an alkali metal salt of the acid with a dialkylaminoethyl halide.  The pharmaceutical compositions, which have hypotensive and anti-cholinergic activity, may take the form of tablets, pills, drops, syrups or injection solutions.
Patent GB-935073-A (GB)
Title: Improvements in or relating to thermo-statically controlled electric heating devices
IPC: H05B1/02
Filed: 1959-10-16
Abstract: 935,073. Controlling electric heaters. KODAK Ltd. Oct. 16, 1959 [Jan. 26, 1959], No. 35061/59. Class 39 (3). [Also in Group XXXV] In a system in which a switch type thermostat controls a main electric heater, a high resistance auxiliary heater for the thermostat is connected in parallel with the main heater. In Fig. 1, an exposed sensitized photographic sheet 4 is processed in a solution 2 and the image transferred to a non-sensitized sheet 6 by a mechanism 7 pressing the two sheets together as they leave the apparatus. Expansion of liquid in a capsule 12 responsive to the temperature of the solution operates, through a bellows 13, a switch 9 controlling the energization of an electric heater 8 so that the temperature of the solution is maintained constant at a preset value. To reduce the temperature differential an auxiliary electric heater 19, energized with the main heater, influences capsule 12. In a modification capsule 12 and auxiliary heater 19 are contained in a plastic bag immersed in the solution. Application of the invention to the temperature control of a drum in photographic print glazing or drying apparatus is referred to. Specification 713,729 is referred to.
Patent GB-890801-A (GB)
Title: Improvements in or relating to high frequency electro-magnetic wave energy transmission lines
IPC: H01P3/13
Filed: 1959-10-16
Abstract: 890,801. Waveguides. WESTERN ELECTRIC CO. Inc. Oct. 16, 1959 [Oct. 30, 1958], No. 35067/59. Class 40(8). A waveguide for propagation of energy in the H<SP>01</SP> mode comprises a conductive helix 41 surrounded by a layer 45 of lossy dielectric material, the whole being encased in a conductive jacket 46. The layer 45 has a thickness equal to an odd number of quarterwavelengths of the propagated energy so that it transforms the low impedance of the jacket 46 to a high impedance at the inner surface of the layer. The helix consists of stranded or solid wire made from copper or a base metal coated with, e.g. silver. The turns of the helix are spaced by a distance less than one quarter-wavelength and the space between the turns may be occupied by a thin coating of dielectric on the surface of the wire. The lossy dielectric 45 does not extend into the space between the turns of the helix and the outer surface of the helix may be overlaid with a thin sleeve of lossless dielectric material. The lossy dielectric 45 may have a power factor of about 0.5 and may comprise polythene loaded with iron dust or carbon black, glass roving or glass tape coated with tin oxide or carbon, carbon loaded paper or cotton string coated with carbon. Alternate layers of lossy and lossless dielectric may be used. The jacket 45 may consist of a copper or steel tube or may be made of overlapping metallic strips or woven braid. Specifications 764,737, 855,026, 890,799 and 890,800 are referred to.
Patent GB-1204420-A (GB)
Title: PROCESS FOR THE PRODUCTION OF ANTHRAQUINONE DERIVATIVES CHLORINATED IN alpha-POSITIONS
Inventor: SCHOENAUER WOLFGANG
IPC: C09B1/503
Filed: 1968-08-02
Abstract: 1,204,420. Anthraquinone compounds. SANDOZ Ltd. 2 Aug., 1968 [11 Aug., 1967; 14 Sept., 1967; 8 March, 1968; 6 June, 1968], No. 35159/68. Heading C2C. [Also in Division C4] Boric acid or boron fluoride complexes of 1,4- dihydroxy anthraquinones are chlorinated in the α-position with a mixture of oleum and chlorosulphonic acid, thionyl chloride or sulphuryl chloride in the presence of a halogenation catalyst and in the absence of substantial quantities of gaseous chlorine. The catalyst is preferably iodine or a compound which yields iodine under the reaction conditions.