baber/WOPTO huggingface dataset:
Patent GB-656907-A (GB)
Title: Improving the wet strength of paper
IPC: D21H17/51
Filed: 1948-08-04
Abstract: The wet-strength of paper is improved by impregnating waterleaf with melamine resin or melamine resin and gelatine, the resin being formed by reacting melamine acetate in aqueous solution with aqueous formaldehyde or a polymer thereof or with another aldehyde.  The resin may be formed on the paper by treating it first with melamine acetate solution and then with formaldehyde &c.  Sizing with a gelatine size may follow the treatment with melamine acetate or melamine resin.  Alternatively, the gelatine size may be added to the melamine acetate solution, to the mixture of melamine acetate and aldehyde or to the aldehyde solution.  The size may contain alum.  A suitable resin bath is prepared by dissolving 17.4 lb. melamine in 100 gals. of water containing 2.18 gals. of glacial acetic acid and then adding 3.2 gals. of formalin.  The resin solution may be passed through a colloidal mill with or without a dispersing agent such as turkey red oil. Specification 540,673, 587,354 and 593,423 are referred to.ALSO:The wet-strength of paper is improved by impregnating waterleaf with melamine resin or melamine resin and gelatine, the resin being formed by reacting melamine acetate in aqueous solution with aqueous formaldehyde or a polymer thereof or with another aldehyde.  The paper may be treated with melamine acetate solution and then with formaldehyde &c.  Tubsizing with gelatine size may follow the treatment with melamine acetate or melamine resin. Alternatively, the size may be added to the melamine acetate solution to the mixture of melamine acetate and aldehyde or to the aldehyde solution.  The paper may be passed through a solution of melamine in dilute acetic acid containing formalin, pressed, cured and then sized with a gelatine size which may contain alum.  The resin-containing mixture may be passed through a colloidal mill with or without a dispersing agent such as turkey red oil. Specifications 540,673, 587,354 and 593,423, [all in Group IV], are referred to.
Patent GB-148881-A (GB)
Title: Escapement of clocks and watches
IPC: G04B15/02
Filed: 1920-07-10
Abstract: 148,881. Burkard, A. March 15, 1918, [Convention date]. Escapements. -The train contains two equal intergeared wheels a, b and the crutch c having its pivot l in the common tangent carries a pin h which engages with each wheel alternately.
Patent GB-896116-A (GB)
Title: Improvements in thermally-operated electric switches for use with electrically-heated kettles and other vessels
IPC: H01H37/52
Filed: 1959-06-17
Abstract: 896,116. Thermal switches. JELSON ELECTRIC Ltd., and MOULSON, J. P. Sept. 2, 1960 [June 17, 1959], No. 20718/59. Class 38 (5). A thermal switch for electrically-heated water vessels cuts the current to an immersion heater promptly in the event of the vessel being empty or boiling dry. In Fig. 1, the switch includes two bimetallic elements 5 and 13 which, when the vessel boils dry, move in the same direction until bimetal 13 is arrested by stop 12, whereupon a rigid lever 16, riveted to spring-blade 17, pivots about one end 21 of a spring blade 20, also riveted to blade 17, under the influence of bimetal 5 and an adjusting screw 24, and engages a pin 22 which separates a blade contact 10 from a fixed contact and breaks the heater circuit. In the event of the appliance being heated when empty, bimetal 5, which is adjacent heater 3 heats more rapidly than bimetal 13 and causes lever 16 to operate the contacts before element 13 is arrested by the stop. The operating temperature is set by the adjusting screw 24 which varies the gap between lever 16 and bimetal 5. In Fig. 6 a coiled compression spring 22 is situated at one end of the lever 16 which is engaged directly by the bimetal 5 and adjusting screw 24 carried by the bimetal 13. In Fig. 9 (not shown) a leaf-spring replaces the coil spring 29 of Fig. 6.
Patent GB-1001216-A (GB)
Title: Explosive compositions
IPC: C06B21/00
Filed: 1964-05-20
Abstract: An explosive composition comprises ammonium nitrate, oleaginous fuel, and an additive which imparts to the composition resistance to the development of charges of static electricity. Suitable additions are a quaternary ammonium salt containing at least one long-chain alkyl radical, a long-chain alkyl pyridinium salt, a polyoxy-ethylene nonyl phenol, a polyoxyethylene di-nonylphenol, and a polyoxyethylene sorbitan monoester of a long-chain aliphatic acid.  These compounds may be added in an amount of 0.1-5% by weight of the composition. The ammonium nitrate in prill form may be treated with kieselguhr, kaolinite, the sodium salt of a mixture of methyl and dimethyl naphthalene sulphonic acids, or calcium stearate as an antisetting or waterproofing agent.  The oleoginous fuel may be diesel oil, fuel oil, petroleum grease or wax, or a partially nitrated derivative of benzene, toluene, xylene, or naphthalene, e.g. dinitrotoluene. An optional ingredient is particulate light metal or metalloid, for example aluminium, magnesium, boron, silicon, or alloys of these elements, e.g. ferrosilicon.  Sodium nitrate may replace part of the ammonium nitrate.  In examples the additives are tallow trimethyl ammonium chloride, cetyl pyridinium bromide, condensates of nonyl phenol and dinonyl phenol with ethylene oxide, and polyoxyethylene sorbitan monolaurate.  The compositions are suitable for underground blasting, being injected into bore-holes through tubes or hoses.
Patent GB-476192-A (GB)
Title: Improvements relating to terminal boxes for electrical heating devices for cooking stoves
IPC: F24C15/10
Filed: 1936-07-27
Abstract: 476,192. Junction boxes. SYKES, C., NEEDHAM, W., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 27, 1936, No. 20781. [Class 38 (i)] In a junction box for joining the supply leads to the heater elements of a cooking stove, the heater elements 4a pass through bores 6 in the body 1 of the box, and are joined to supply leads in the chamber 3, the leads passing out through a sealing chamber 12 which may be fitted with cement and closed by a cover plate 13. Collars 11 are used to protect the leads where they pass through the apertures 9 in the walls 8, 10. The detachable side 2 of the box is held to the body 1 by screws and ribs 15 are provided to prevent liquid running down on to the supply leads. The sheaths 4 make a liquidtight joint with the bores 6 and may be soldered or brazed to the box. Pivots 16 are provided for hinging the box to the frame of a stove. Specifications 363,774 and 415,107, [both in Group XI], are referred to.
Patent GB-822502-A (GB)
Title: Production of ozone
Inventor: WEBSTER THOMAS JOHN
IPC: C01B13/11
Filed: 1956-07-05
Abstract: 822,502. Producing ozone. BRITISH OXYGEN CO. Ltd. July 2, 1957 [July 5, 1956], No. 20860/56. Class 39(1). [Also in Group XIII] A process for the production of ozone comprises subjecting gaseous oxygen to a silent electric discharge in an ozoniser, cooling the ozoniser by heat exchange with a stream of a cold gas or liquid, whereby a stream of warm gas is produced, using the warm gas to vaporize a liquefied gas, whereby the warm gas is cooled or condensed, and recycling the cooled gas or liquid condensed therefrom to cool the ozoniser. The cold gas or liquid must be such, e.g. nitrogen or argon in gaseous or liquid form, as not to react with oxygen or with the liquefied gas being vaporized, e.g. methane. Fig. 1, shows an ozoniser comprising a glass tube 10 having a wire electrode 11, an earthed screen 12 and an oxygen inlet / ozone outlet line 13 surrounded by a shroud 14 connected by a gas vent line 20 to the insulated container 15 provided with a liquid oxygen supply line 16, a liquid oxygen/liquid ozone discharge line 17, a pressure gauge 18, and a liquid level indicator 19. Oxygen gas is automatically vented from the shroud 14 through a line 21 by a pressure control valve 22, pressure in the container 15 being restored by an automatic pressure build-up circuit 22a. The ozoniser is cooled by a stream of nitrogen or argon which is recycled through a jacket 23 by way of a heat exchanger 24, a blower 25 and a vaporizer 26 for liquid methane. The heat exchanger 24 can be omitted if the blower 25 is capable of operating at the temperature of the return gas from the jacket 23. The nitrogen or argon is circulated at a rate sufficient to ensure that the temperature of the heated gas leaving the jacket 23 does not exceed -112‹C. The vaporizer 26 comprises an outer jacket surrounding a coil 27 through which liquid methane is passed counter-current to the nitrogen or argon passing through the jacket. The liquid methane is vaporized by heat exchange with the nitrogen or argon which is cooled to a temperature of about -155‹C. The single ozoniser tube 10 can be replaced by a plurality of tubes connected to a common oxygen supply line and fitted with a common cooling jacket or with individual jackets. In a modification the blower 25 is replaced by a compressor and an expansion valve is positioned between the vaporizer 26 and the jacket 23, the nitrogen or argon condensing in the vapouriser and the liquid so formed expanded through the valve and allowed to evaporate in the jacket 23 at approximately atmospheric pressure. A high-pressure storage battery can be included in the re-cycle circuit to store the re-cycle gas when the plant is shut down. In the construction shown in Fig. 3 warm oxygen is pre-cooled to a temperature below -122‹C. by countercurrent heat exchange in an exchanger 30 with nitrogen or argon leaving the jacket 23, the pre-cooled oxygen entering the ozoniser through a line 31. The nitrogen or argon can be re-cycled by a blower 25 or by a compressor as previously referred to.
Patent GB-358563-A (GB)
Title: A process for the production of gas-free and oxide-free cast bars and other castings
IPC: C22B9/04
Filed: 1930-07-10
Abstract: In the production of gas- and oxide-free ingots and castings by the application of reduced pressure on the molten metal, the metal before this treatment, is overheated up to a temperature which is at least 50 DEG  C. higher than the casting temperature for the purpose of absorbing large quantities of gas.  The metal may be stirred during the heating up and the application of the reduced pressure which may be applied intermittently.  If a very high overheating temperature is used, a suitable quantity of cold metal which has already been treated by the process may be added to the metal before or during the application of the reduced pressure in order to cool down quickly the molten metal to the casting temperature.  The process is applicable to steel copper nickel magnesium and their alloys e.g. nickel whose normal casting temperature is 1480 DEG  C. is heated up to at least 1530 DEG  C. and an alloy containing 95 per cent of magnesium, 3 per cent of aluminium and 2 per cent of manganese, whose casting temperature is 680 DEG  C. is heated up to 750 DEG  C. Specifications 28573/06 and 23441/09, [both in Class 72, Iron &c.], are referred to.
Patent GB-443082-A (GB)
Title: Improvements in or relating to spring rings
IPC: F16F1/02
Filed: 1935-07-23
Abstract: 443,082. Spring rings. LAMBERTS PRORACE, Ltd., and LAMBERT, E. W., 60, Queen's Road, Dalston, London. July 23, 1935, No. 20924. [Class 108 (iii)] A spring ring of circular or oval form comprises a spiral spring c surrounding a spring consisting of one or more coils a of thin strip metal the ends of each of or of both the springs being soldered or welded together. The ends of the strip spring a may overlap, as shown, or abut and may be soldered &c. to the ends d or other part e of the spring c. To form an oval-shaped spring ring, the strip spring is formed into a permanent oval form, inserted into the helical spring, and the spring- ends then connected.
Patent GB-634871-A (GB)
Title: Ignition furnace for sintering machines
IPC: F27B21/06
Filed: 1947-08-01
Abstract: 634,871. Sintering apparatus. MORGAN, M. F. Aug. 1. 1947, No. 20972. Convention date, March 31, 1943. [Class 82(i)] A furnace, for a sintering machine having a row of movable pallets, comprises vertical side walls disposed close to the opposite sides of the row of pallets and extending from below to well above the top surface of the pallets, a roof substantially enclosing the space between the side walls and above the pallets and burners secured to the side walls to project fuel through the latter into the said space. In the furnace shown in Fig. 3 the walls 9 and roof are supported by a framework formed by uprights 4, horizontal beams 6 and cross members 7 connecting the uprights above the pallets 2. Walls 9 are adjustably secured to cross members 7 by bolts 22 passing through slots 23 in brackets 21, the vertical position of the said walls being adjusted by the insertion of blocks 20 of any desired thickness between the bottoms of the walls and brackets 8 attached to uprights 4. The walls have openings A, B and C (Fig. 2) through which a combustible mixture is projected across the row of pallets. The roof is formed of sections each of which comprises an arcuate metal shell 27 (Fig. 5) having a concave lower surface to which is attached a refractory lining 30. A pair of beams 26 is connected to the shell by longitudinal metal sheets 28 and transverse metal sheets 29. Beams 26 are supported across beams 7 of the framework (Fig. 2) their vertical height being adjusted by insertion of blocks 31 between beams 26 and beams 7 so that the lower edges D and E of the roof are closely adjacent to the tops of the pallets. The rear edge of the roof is provided with tubes 32 through which cooling fluid is circulated to protect this edge from the heat of the furnace.
Patent GB-201048-A (GB)
Title: Improvements in or applicable to twist-lace machines of the "levers" and "go-through" type
IPC: D04C5/00
Filed: 1922-08-02
Abstract: 201,048. Wallis & Sons, Ltd., W., and Wallis, S. A. Aug. 2, 1922. Lace machines.-Gimp and other independent threads are carried by independent spools A arranged preferably in two sets, each set being provided with a separate oscillating feed bar H and each thread being arranged to support a lingo F. The bars H are connected by linkwork N, 0 so as to oscillate together. Each bar has secured to its flat face a thread-retaining bar H<1> and the oscillating movement causes the threads passing through the space between the bars to be nipped and drawn off the spools.
Patent GB-989382-A (GB)
Title: Heat-sensitive materials
Inventor: DAVIES WILLIAM ALAN MCFARLANE
IPC: G03C1/52
Filed: 1962-05-31
Abstract: 989,382. Thermographic materials. ILFORD Ltd. May 10, 1963 [May 31, 1962; Dec. 14, 1962], Nos. 21092/62 and 47342/62. Heading G2C. A heat-sensitive material comprises a flexible carrier coated with a mixture of a triazene dye base, an aro coupler and either a solid amide or a keto-alcohol or a mixture thereof melting at 60- 150‹C. dispersed in a translucent plastic binder. Preferably the triazene dye base is of the formula where D is the residue of a saturated carbocyclic or heterocyclic ring and R is an aromatic group. Specified triazene dye bases are Brentogen Navy Blue (dye base plus a coupler), 4, 4<SP>1</SP>-bis (morpholino- or piperidino-aro)-3, 3<SP>1</SP>-dimethoxy diphenyl and N, N<SP>1</SP>-bis (3, 6, 4<SP>1</SP>-triethoxydiphenyl- 4-aro)-piperazine. On image-wise exposure, the amide or heto-alcohol (e.g. acetanilide, benzamide, benzoin or furoin) melts and the dye base then couples with the coupler (e.g.3-hydroxy-2- naphthanilide, resorcinol or phloroglucinol) to give a coloured image. The intensity of the image is increased by subsequent exposure to ultra-violet. A resin overcoat may be applied to the heat-sensitive layer, either the support or the overcoat being infra-red transmissive and preferably containing a pigment e.g. titanium dioxide. Specified binders for the light-sensitive layer are polyvinyl alcohol, vinyl chloride-vinyl acetate copolymer, cellulose acetate and ethyl cellulose.
Patent GB-240283-A (GB)
Title: Improvements in or relating to inductance coils as used in wireless apparatus and the like
IPC: H01F41/04
Filed: 1924-09-08
Abstract: 240,283. Paddle, L. H., and Crisp, J. A. Sept. 8, 1924. Inductances.-Each layer of an inductance coil is wound on temporary supports, the turns being held together by an adhesive or binding material, and separated from one another if necessary by intermediate turns of string, catgut, strips of paper, &c. On a spindle F are assembled a pair of outer cheeks E, E', a pair of inner cheeks E<6>, a paper, gelatine, mica, or other coil support A, A', and a distance-piece. The outer cheeks E, E' are formed with radial grooves E<2> into which fit pins E<3>, E<4>, E<5> forming the temporary supports on which the wire B is wound. The inner cheeks E<6> have slots corresponding to the grooves E<2>. The wire B and the string &c. if used may be coated with adhesive before winding or each layer after winding may be coated with adhesive by which also each layer is attached to the paper or other cheeks A, A' forming the coil support. Instead of the grooves E<2>, the outer cheeks may have radial series of holes. After winding, the outer cheeks E, E' and the spindle F are removed and the coil allowed to dry, the separating pins E<3>, E<4>, E<5> and the inner cheeks E<6> then being removed. The finished coil is preferably inserted in a casing. One supporting side of the coil may be removed, the airspaced layers being held by one side only. Two coils so made may be made to fit into one another so as to form a high-frequency transformer with variable coupling. An alternative method of separating the individual coils of each layer consists in fixing the turns in a separated position by securing them to strips of paper &c. coated with an adhesive. This may be in the form of single strips, one of which can be applied to each layer and have its edges fitting into annular grooves in the cheeks, or each layer may have strips D secured at intervals, the ends being attached to the cheeks A, A<1>.
Patent GB-187068-A (GB)
Title: An inlet and exhaust valve of the rotary type for internal combustion engines
IPC: F01L7/02
Filed: 1921-08-09
Abstract: 187,068. Simpson, R. J., and Lacey, C. S. E. Aug. 9, 1921. Valves.-A rotary valve comprises a sleeve C inside which is arranged, so as to rotate therewith, a tube D with flanges H forming annular gas-tight compartments within the sleeve. The sleeve C is formed with inlet ports K and exhaust ports J. The charge is admitted to the inside of the tube D and flows through ports D<1> to certain of the annular compartments, passing through the ports K to the cylinders. The exhaust enters other annular compartments and escapes by the ports J. In the multicylinder engine shown, the valve is formed in two parts united by dog-clutch connections F to a central member E, to which the charge is admitted through ports L. The driving-spindle P is formed with a flange O having dog-clutch connection to the sleeve C. Specification 153,360 is referred to.
Patent GB-1190601-A (GB)
Title: Apparatus and Process for Disposing of Impurities Occuring in Fuel Cells.
IPC: H01M8/06
Filed: 1967-05-08
Abstract: 1,190,601. Fuel cell systems. GENERAL ELECTRIC CO. 8 May, 1967 [9 May, 1966], No. 21252/67. Heading H1B. An unvented fuel cell power supply system comprises two separate fuel cells, the exhaust stream of at least one electrode of the first cell being fed to the appropriate electrode of the second where it is consumed, the second cell having means to retain any impurities flushed from the first cell by the exhaust stream of unconsumed gas. As shown, a fuel battery comprising a number of cells 108, 110, 112, 114 and 116 has one set of gas chambers connected in series by conduits 130. The exhaust stream from the last of these chambers passes through a length of smaller diameter tubing 104 to prevent back-diffusion to fuel cell 10 where the remainder of the reactant is consumed at an electrode and the impurity is retained in a mass of active carbon (Fig. 1, not shown). The system is preferably employed using as the reactant fed to the second cell hydrogen which may contain hydrocarbon impurities.
Patent GB-336607-A (GB)
Title: Improvements in or relating to the winding of textile threads
IPC: B65H49/18
Filed: 1929-07-11
Abstract: 336,607. Brandwood, J. July 11, 1929. No Patent granted (Sealing fee not paid). Creel arrangements. - In unwinding thread, filaments, &c., artificial silk, &c., cross wound bobbins are rotated in the same direction as, at a surface speed smaller than the speed of, the gyration of the uncoiling thread, thus reducing frictional drag on snarls, knots &c., and on the bobbin flanges if any. The ratio of the two speeds may be constant. The bobbin b rests on a turntable c of wood, &c. which may have a vertical spindle for smaller bobbins and which is mounted on a spindle d passing through a bearing e in a fixed part f of the machine frame. The spindle d has a friction disc g of wood, metal, &c. pinned on it which engages a similar disc h pinned on a horizontal shaft extending along the machine. The thread x which passes over a drum a to any winding device, gyrates round the bobbin, and its impact with a snarl &c. y is lessened or avoided, thus large bobbins may be used with reduced risk of thread breakages. Large, heavily flanged bobbins resting on the turntable may be braked by the hand. The bobbins may be on a horizontal spindle.
Patent GB-465217-A (GB)
Title: Improvements in automatic firearms
IPC: F41A15/12
Filed: 1935-07-29
Abstract: 465,217. Automatic guns. GOBIERNO DE LOS ESTADOS UNIDOS MEXICANOS. July 29, 1935, No. 21333. Convention date, July 28, 1934. [Class 119] Relates to gas-operated guns of the kind in which the drive-rod 44, Fig. 1, carries a strikerpost 43 passing through cam slots 41 in the upper and lower parts of a rotary breech bolt 5, and consists in providing a firing-pin 6 which is cylindrically guided in the breech bolt and has a slot to slidably fit the striker post. The parts are shown in position with the breech open and the gun cocked, the sear 70 engaging a recess 71 in the drive-rod. On releasing the trigger, the striker-post moves the breech bolt forwards, loading a cartridge from the magazine, turning the breech bolt to engage its locking lugs with the breech casing, and finally moving the firing- pin forwards to fire the cartridge. On firing, the striker-post rotates the breech bolt for unlocking and moves it rearwards again to the position shown. The Specification as open to inspection under Sect. 91 also describes (1) the cartridge ejector described in Specification 465,326, (2) the barrellocking device described in Specification 465,327, (3) the charge-fire device described in the Specification 465,328, and (4) with reference to Figs. 5 and 7 (both Cancelled), a magazine latching device 28, 30, and a lever 31 pivoted at 32 to the casing and controlled by a projection 23<1> on the magazine platform to engage the breech block at 33 to retain the breech open when the magazine is empty. This subject-matter does not appear in the Specification as accepted.
Patent GB-1515908-A (GB)
Title: Washers and wipers for screens of motor vehicles
IPC: B60S1/46
Filed: 1975-05-20
Abstract: 1515908 Windscreen cleaning systems ROBERT BOSCH GmbH 20 May 1975 [1 Oct 1974] 21409/75 Heading A4F [Also in Divisions F2 and H1N] A windscreen cleaning system comprises a shaft 14 rotated by a wiper motor and provided with a disc 15 carrying cams 20, 18 for operating a wiper control switch Fig. 2 (not shown) and a switch 13 controlling a washing liquid pump, respectively, the cam 20 being radial and the cam 16, axial. The cam 20 is angularly adjustable on the shaft 14 relatively to the cam 18 or together with the latter by means either of a splined connection between the shaft 14 and a sleeve 30 on the disc, the sleeve adjustably bearing the cam 20 Fig. 6, or between the shaft and cams 20, 18 integral with the disc, Fig. 4.