baber/WOPTO huggingface dataset:
Patent GB-1190328-A (GB)
Title: Electrical Pulse Generating Apparatus
Inventor: LINKROUM IRVING ERNEST
IPC: F02P1/08
Filed: 1968-04-04
Abstract: 1,190,328. Ignition systems. BENDIX CORP. April 4, 1968 [April 10, 1967], No.16337/68. Heading F1B. An ignition system comprises an alternating current source 10, a charging circuit fed by the source and arranged to change a plurality of storage condensers and a control spark gap 30 and an ignition spark gap 40 connected to the storage condensers for sequentially discharging the condensers therethrough. Current limiting means is connected between the source and the storage condensers for limiting backward current flow resulting from oscillatory discharge of these condensers. As shown the system includes a voltage doubler arrangement comprising condensers 18, 19. The ignition spark gap 40 may be of shunted surface type. The system is for use in jet and gas turbine engines.
Patent GB-1303317-A (GB)
IPC: D06M13/02
Filed: 1970-04-07
Abstract: 1303317 Softening textiles KAO SOAP CO Ltd 7 April 1970 [9 April 1969] 16396/70 Heading D1P A softening agent composition for textiles comprises a mixture of an epichlorohydrin adduct of a sorbitan fatty acid mono- and/or di-ester, with an ethylene oxide adduct of a mono-, di- or tri-glyceride of 12 hydroxy stearic acid. The fatty acid may be a saturated or unsaturated fatty acid of 8-22 C atoms which is linear or branched at the α-position of the carbon chain. The mol number of the added epichlorohydrin may be 0.3-3 mols per one free hydroxyl group of the ester. The mol number of the added ethylene oxide may be 10-15 mols per 1 molecule of the glyceride. The ratio of (a) to (b) is preferably 20-80% by weight of the former Vo 80-20% by weight of the latter. The composition may be used alone in aqueous solution or may be dissolved in a resin-finishing bath to which auxilary agents may also be added. Auxiliary agents used are water soluble polymers derived from a copolymer of maleic anhydride and a copolymerizable monomer, e.g. alkali metal salts and water soluble salts, prepared by partially neutralizing with ammonia or low alkylamine, to prepare a half amide of a copolymer and neutralizing the remaining free carboxyl group of the half-amide. Examples of the copolymerizable monomer are vinyl acetate, diisobutylene, vinyl methyl ether, ethylene, acrylic acid, vinyl pyrrolidone. Examples of other water soluble polymers are sodium polyacrylate, CMC, PVA and sodium polymaleate. The water soluble polymers should have good miscibility with the softening agent and a molecular weight <10,000. The resin finishing bath may comprise a urea- or melamine-formaldehyde precondensate or a glyoxal type resin. An anionic surface active agent, e.g. alkali salt of dialkyl sulphosuccinic acid, alkylaryl sulphonic acid, N-alkaryl-N-alkyl tauric acid, mono- or di-alkyl phosphoric ester, can be incorporated in the bath to give rewettability without loss of softening to the treated textile. Materials treated are cotton/polyester, cotton/ polyvinyl alcohol and rayon/polyester.
Patent GB-529613-A (GB)
Title: An improved venetian blind or shutter
IPC: E04F10/10
Filed: 1939-06-05
Abstract: 529,613. Window blinds. DAVAR, K. P. June 5, 1939, No. 16422. [Class 20 (iii)] A venetian blind is suspended from the top of a window or door frame on pivots 4, and held in adjusted open position by stays 8. The slats 3 are connected by lazy-tongs lattice-work 6, some of the pivot-pins 5 being guided in the hinged channel-section rails 2.
Patent GB-893346-A (GB)
Title: Bearings for sliding panels
Inventor: BOYS DONALD LESLIE
IPC: E05D15/06
Filed: 1959-05-13
Abstract: 893,346. Rectilinear-motion bearings. GENT Ltd., RICHARD. May 13, 1960 [May 13, 1959], No. 16437/59. Class 12 (1). In a rectilinear-motion bearing-unit a ball 2 is held in a block moulded of resilient material 1 so that less than half of the ball stands proud of the block to allow the ball to engage an edge of a panel 6 mounted thereon. The block 1 may be rectangular and have screw-holes 5 therein. The ball 2 is forced into position in the block and a rim 3 prevents its escape therefrom. In a modification a unit 7, Fig. 3, comprises two units 1 connected by an integral web 8 which may be clamped in position by a member 10.
Patent GB-740159-A (GB)
Title: Improved precision "cire-perdue" casting process
IPC: B22C9/04
Filed: 1952-06-30
Abstract: 740,159. Moulding processes ; mould materials. REGIE NATIONALE DES USINES RENAULT. June 30, 1952 [Aug. 31, 1951], No. 16446/52. Class 83 (1). In making a mould, for casting metal articles by the " lost-wax " process, the wax pattern is precoated with refractory grains in aqueous alkaline silicate, with or without glycerine, and dried; this coat is treated with a solution of a calcium, magnesium, aluminium or other metal salt, the silicate of which is insoluble in water, in a solvent which does not dissolve alkaline silicate, and finally invested with sand, binder and water. Ethyl alcohol may be used to dissolve chlorides of the above metals, acetate or benzoate of magnesium or nitrate of aluminium. Aluminium chloride may also be dissolved in carbon tetrachloride or in tetrachlorether.
Patent GB-684839-A (GB)
Title: Improvements in or relating to a process for the preparation of organic thiophosphate esters
IPC: C07F9/18
Filed: 1949-06-23
Abstract: Thiophosphates of the formula <FORM:0684839/IV (b)/1> where R is alkyl of 1-8 carbon atoms, are made by reacting the appropriate dialkoxythiophosphoryl chloride with 1 mol. of alkali p-nitrophenate in an alcoholic medium at - 10 DEG  to +10 DEG  C. Trialkyl thiophosphates are by-products.  The nitrophenate is preferably made from p-nitrophenol and alcoholic sodium alkoxide (same as ROH above), and may be prepared separately or in situ in the reaction mixture of thiophosphoryl chloride and 2 mols. of NaOR in alcoholic solution. After all the nitrophenate is added the temperature may be raised above 10 DEG  C.  Examples show the production of dialkoxythiophosphoryl chlorides and thiophosphates of the above formula where RR are dimethyl, diethyl, dibutyl and di-2-ethylhexyl. Triethyl thiophosphate is also formed.  The Specification as open to inspection under Sect. 91 refers to the use of an aqueous alcoholic medium for the reaction and mentions sodium and potassium hydroxides and carbonates are suitable for preparing the p-nitrophenate.  If these are used, in the absence or presence of water, the p-nitrophenate may be added in suspension instead of in solution. Further examples are given of the preparation of the diethyl ester using p-nitrophenate made in situ from sodium hydroxide and from sodium carbonate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-297759-A (GB)
Title: Improvements in or relating to processes and apparatus for refining or purifying metals and alloys
IPC: C21C1/00
Filed: 1927-06-23
Abstract: 297,759. Corsalli, F. W. June 23, 1927. Purifying and refining; molten metal, reinoving imprurities from by agitation.-In a process for improving and purifying molten metals and alloys, the molten metals are intermixed and shaken on flowing through a mixing device by a swinging or rotating movement or by impact alternately in opposite directions and then are subjected to further vibration in the same manner in a collector. The mixer and collector may be vibrated by a separate or common means and the improving materials, e.g. carbon, alloy additions or purifying materials such as aluminium or soda, may be added to the molten metals &c. before they are fed into the mixer. The mixer 1 and collector 2, Fig. 1, are formed in one and are provided with bosses 3 resting on blocks 4. The apparatus is jogged by the engagement of uniformly rotating cams 5 with projections 6 on the bottom of the vessel 2. The molten metal &c. passes from the smelting furnace through an orifice 7 into the mixer 1 and flows through channels 8, 8<a>, Fig. 2, finally passing by the opening 9 into the collector 2. A heating device of any known kind may be applied at 11 and the purified metal is run off at 12, the slag &c. being led off through the opening 10. In a modification, Fig. 4, the mixer 1, which may be fixed or vibrated separately from the collector, is provided with chambers 18 for the molten metal &c. and 19 for the additives and also with inclined connecting channels 8. The metal &c. flows through an opening 20 into the collector 2 which is adapted to be oscillated about an axis 16 and is provided with internal projections. In addition to or in substitution of the heating device in Fig. 1, furnace gases may be passed into the collector 2 near the opening 9 so that part of the gases pass through the latter opening and part across the metal and through a by-pass pipe leading to the upper series of channels 8, 8<a>.
Patent GB-492995-A (GB)
Title: Improvements in tractor wheels
IPC: B60B15/00
Filed: 1937-06-17
Abstract: 492,995. Vehicle wheels. DUNLOP RUBBER CO., Ltd., and DAW, R. F. June 17, 1937, No. 16828. [Classes 144 (i) and 144 (ii)] A tractor wheel comprises a coned disc 18 having a centre-portion 5 detachably secured to, or formed integral with, a mounting-hub 1, and a peripheral portion 21 carrying strakemembers 24, 30 projecting beyond and/or over the tyre 25. The tyre-carrying rim 11 is clamped between a rib or series of lugs 19 or the disc 18 and taper-brackets 16 engaging a wedge seating (or seatings) 12 on the inner periphery of the rim. In the construction shown, the strakes comprise triangular groundengaging plates 30 detachably secured to anglepieces 24 bolted to, and abutting flanges 29 on, the wheel-portion 21.
Patent GB-1068528-A (GB)
Title: Detergents
IPC: C11D1/22
Filed: 1966-04-18
Abstract: A detergent composition comprising a linear alkylbenzene sulphonate and a sulphate of an ethoxylated long chain alcohol of 10-15 carbon atoms, the alkyl phenyl portion of the said alkylbenzene sulphonate having a molecular weight of 230-240 and its alkyl being at least 80 mole per cent C10, C11 and C12, at least a half of the alkyls in the C10-C12 range being C10 and C11, the C10 and C11 being at least 45% of the total alkyl content, no more than 2% C14, no more than 2% C9 and no more than 15% C13, the alkyl of the alkylbenzene sulphonate containing at least 60 mole per cent of alkyls whose benzene attachment is on the 3 or higher carbon of the alkyl radical.  The composition may also contain a monoalkanolamide and/or an alkyl amine oxide, the fatty acid portion of the amide or the alkyl portion of the amine oxide having 11-13 carbon atoms, a hydrotrope, a foam stabilizing additive and a perfume or dye.
Patent GB-682057-A (GB)
Title: Improvements in or relating to sluice valves
IPC: F16K3/02
Filed: 1951-07-18
Abstract: 682,057. Valves. GRANNENFELT, A. July 18, 1951. No. 17076/51. Class 135. A plate 14 constituting the closure member of a sluice valve slides between two sharp-edged ledge sealing members 24 which extend from points on opposite sides of the valve casing down to the bottom thereof where they overlap each other for only a short distance. When the valve is used to control flow in pulp lines, the bottom edge of the plate 14 is formed with a groove 25 so that jammed fibres will be cut between the sharp edges of the groove and of the ledges 24. The valve plate is sealed by a packing ring 22 and by arcuate packing strips 23 of hemp and tallow set in recesses in the valve casing. The plate is moved by a manually-actuated spindle 16 which screws into a nut 17 carried by the plate, a collar 18 on the spindle preventing axial movement thereof. The plate also carries bolts 27 sliding in slots in the limbs of the yoke 5 supporting the operating spindle, and one of the bolts carries a pointer co-operating with a scale to indicate the degree of opening of the valve.
Patent GB-720367-A (GB)
Title: Apparatus for electrically butt-welding wire ends
Inventor: HOLROYD ERIC
IPC: B23K11/00
Filed: 1952-07-11
Abstract: 720,367. Welding by pressure. DUNLOP RUBBER CO., Ltd. July 11, 1952 [July 20, 1961], No. 17220/51. Class 83 (4). Welding a butt-joint between the ends of a wire by clamping the ends in pairs of jaws which first heat the joint to effect welding and then heat it at a more remote position to anneal the joint. Each welding unit comprises welding clamps 91a, 91b on geared levers 96a, 96b opened by cams 102 and closed by spring pressure and similar annealing clamps 93a, 93b. The left-hand clamps, Fig. 1, are mounted on a member 97 slidable on shafts 104, 105 by a spring 103 when released by a cam 100 on a shaft 101 which carries the cams 102 for opening the clamps. The clamps are connected to the secondary of a transformer Fig. 12 (not shown), the primary of which contains a switch operated by a cam shaft. The shortening of the wire during welding allows spring 103 to push the member 97 to the right to operate a switch 114 for cutting off the current. In operation, the wire loop is held in clamps 91, 92, 93, 94. A cam, Fig. 4 (not shown), closes the transformer primary. circuit and the clamps are energized. The spring 103 moves the left-hand member 97 to the right to effect welding the switch 114 operates to open the primary circuit. The welding clamps are then released by the cams 102 and the annealing clamps energized by a cam to anneal the joint. Specification 720,370 is referred to.
Patent GB-688404-A (GB)
Title: Improvements in melting pots for stereotype metal
IPC: B41D3/00
Filed: 1950-07-10
Abstract: 688,404. Printing-surfaces. BADER, H., [trading as ELEKTRO-FUNDITOR BADER & CIE]. July 10, 1950 [Oct. 1, 1948], No. 17221/50. Class 100(ii) Casting stereotype plate.-A melting pot 1 for stereotype metal for the casting of stereotype plates, in which the melting pot has a pouring spout 9 extending downwardly to one half of the height of the pot 1 or below this is provided with an immersion body 6 displaceable into the molten metal of such a size that by its immersion the metal rises and flows out through the spout 9. The body 6 may be of sheet metal and is operated by a rack and pinion arrangement 4, 5. The spout 9 extends into a number of bores 10 or into a continuous slot and is provided with a mouthpiece 11 having a groove 12 in which adjustable members 13, Fig. 4, covering the bores 10 may slide, the member being held in position by a cover plate 14. Guide rods 15 are provided so as to facilitate correct adjustment of the members 13.
Patent GB-665505-A (GB)
Title: Improvements in velocity-modulated valves of the reflex type
IPC: H01J25/24
Filed: 1949-06-29
Abstract: 665,505. Velocity-modulated tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 29, 1949 [July 10, 1948], No. 17251/49. Class 39 (i). In a reflex klystron a grid electrode 5 located between the cavity resonator 2 and the reflector electrode 6 to form a field free space 4 adjacent the resonator, is orthogonal to the paths of the electrons so that the electrons follow the same paths on their return travel as on their forward travel. The grid 5 and reflector electrode 6 are as shown, hemispherical and concentric about the opening 3 in the cavity resonator. The electron beam is conical. The electron beam may, however, be flat and the electrodes 5, 6 cylindrical, or disc-shaped, and the electrodes toroidal.
Patent GB-765579-A (GB)
Title: Improvements in radiation amplifiers
IPC: H01L31/14
Filed: 1954-06-11
Abstract: 765,579. Photo-conductive devices. STANDARD TELEPHONES & CABLES, Ltd. June 11, 1954 [June 17, 1953], No. 17293/54. Class 37. [Also in Group XL (a)] An electro-luminescent radiation amplifier comprises a plurality of hollow tubular portions of photo-conductive material the axes of which are substantially normal to the electricallyconducting sheets of the amplifier. The photoconductive material 12 is deposited on the aperture walls 10 of a perforated mesh 11 of insulating material, e.g. of photoform glass, to form a film 2-20 microns thick which does not close the perforations, the plane surfaces of the sheet being afterwards ground or scraped to clean off the photo-conductive material leaving a plurality of insulated tubes of the latter material, the ends of which may be electrically connected to one electrode and the electroluminescent layer respectively. In Fig. 6, upstanding spines 14 on a base 1 of insulating material form evenly spaced crests and valleys, and conductive material 15 is first evaporated or deposited in the valleys, and photo-conduc. tive material 16, e.g. cadmium sulphide on the spines. An opaque material 18 fills the space between the coated spines 14.
Patent GB-402170-A (GB)
Title: Improvements in lawn mowers
IPC: A01D34/47
Filed: 1932-05-26
Abstract: 402,170. Lawn-mowers. POYSER, G. W., and CURTIS CULTIVATOR CO., Ltd., Curtis Works, Matlock, Derbyshire. May 26, 1932, No. 17301. [Class 6 (ii).] In a lawn-mower in which the rotary cutter is driven from the spindle of a ground roller, the spindle is driven from the roller a by a free-wheel ratchet of the construction shown and comprising a driving-pin e sliding freely through the spindle. The ratchet drum b may be formed in one with the roller a or may be secured in it by a set-screw c.
Patent GB-441128-A (GB)
Title: Improvements in insect traps particularly applicable to flying insects
IPC: A01M1/10
Filed: 1934-06-12
Abstract: 441,128. Insect traps. MARSH, E., Bradley Hall, Grappenhall, near Warrington. June 12, 1934, No. 17342. [Class 5 (i)] An insect trap comprises a tapering main casing 1, preferably of perforated zinc or woven wire, with open top and bottom, the former being substantially less in cross-section than the latter, surmounted by a container 5 the top of the casing extending some distance into the container. The casing is supported on legs 2 to maintain the bottom 4 some distance from the ground ; flanges may be provided to limit the distance the legs enter the ground. The container is preferably made in two parts the lower 5 being formed of cast iron as an annular trough to contain liquid insecticide such as paraffin oil or turpentine and the upper 6, of glass or other transparent material, fitting on the trough.
Patent GB-241294-A (GB)
Title: Improvements in or relating to the coating of electrical conductors
IPC: H01B13/30
Filed: 1924-07-19
Abstract: 241,294. Shuter, A. D. July 19, 1924. Extrusion machines.-An electrical conductor wound on a bobbin f in a chamber a from which the air has been partially exhausted is drawn through a die j and a chamber h containing a coating compound and in which the pressure is greater than that of the atmosphere. Specification 194.796, [Class 140, Waterproof &c. fabrics), is referred to. According to the Provisional Specification the chamber containing the bobbin has in it a trough containing compound and the conductor is drawn through this trough to the die and may subsequently pass through second- and third chambers, the third being filled with compound under pressure forced into it by a pump. Excess compound passes from the third to the second chamber through a relief valve and covers the conductor therein. The coated conductor as it passes from the third chamber is led through a long pipe, preventing access of air, to a machine which coats it with insulating compound.
Patent GB-745082-A (GB)
Title: New copper-containing disazo dyestuffs
Inventor: ON ERIC LESLIE JOHNS
IPC: C09B45/28
Filed: 1953-06-24
Abstract: The invention comprises dyestuffs of formula <FORM:0745082/IV(c)/1> where one X is a sulphonic acid group and the other X's are H. They are made by coupling tetrazotized 4, 41-diamino-3, 31-dimethoxy- or -diethoxy-diphenyl with 1-naphthol-3, 6-, -3, 7- or -3, 8-disulphonic acid and 2-(31-sulphophenylamino) -5-naphthol -7- sulphonic acid under alkaline conditions and treating the products so obtained with copper-yielding agents such as an ammoniacal solution of a copper salt in the presence of an organic base.  The dyestuffs dye cellulosic fibres in blue shades.  Examples are provided of the preparation of all three dyestuffs the first coupling taking place in sodium carbonate solution and the second, when the amine is added in that solution optionally with the addition of ammonium hydroxide and pyridine.  Specification 352,956 is referred to.
Patent GB-516001-A (GB)
Title: A pneumatic and hydraulic lifting machine
IPC: B66F7/18
Filed: 1938-06-13
Abstract: 516,001. Fluid - operated load - handling apparatus. VIEBKE, A. June 13, 1938, No. 17552. [Class 78 (iii)] A pneumatic-hydraulic lifting apparatus comprises a platform P supported on two plungers A moving in cylinders C and substantially filled with oil. The platform is lifted by the supply of compressed air by pipes 14 above the oil in the plungers whereby the oil is forced through a valve 7, normally held against its seating by a plate spring and pivoted lever 6, into the cylinders so as to lift the plunger. If one plunger rises more rapidly than the other owing to unequal distribution of the load on the platform, the movement of the rams is -arrested owing to the action of stops la on levers 3 mounted on intermediate pivots and carrying a shaft 13 with tappets 8, 4 whereby the tappet 4 depresses a rod 5 to rock the lever 6 and hold the valve 7 closed, thus arresting the lift of the plunger until the platform is again horizontal. To lower the platform the tappet shaft 13 may be rocked by a hand lever 13a so that the tappet 8 depresses the rod 9 to open an_air valve 10 and the valve 7.