baber/WOPTO huggingface dataset:
Patent GB-152879-A (GB)
Title: Improvements in electrolytic apparatus
IPC: C25C7/00
Filed: 1919-07-09
Abstract: 152,879. Ashcroft, E. A. July 9,1919. Electrolytic furnaces.-Apparatus suitable for the decomposition of magnesium chloride with the production of magnesium or an alloy thereof with lead or zinc comprises one or more pairs of cells 1, 2, Fig. 1, electrically connected in series through their body parts, say by conductors x, and provided with pockets 6, 7, Fig, 3, communicating with the bottom of the cell by passages 4, 5. In front of the discharge pocket is a weir 8 determining the height of the molten alloy electrode in the cell. The charging pocket of one cell and the discharging pocket of the other are preferably on the same side, to facilitate periodical transfer by ladling. Alternatively, the transfer may be effected by mechanical devices or communicating passages. Above the level of the alloy the cast steel or other cells are protected from the electrolyte and gases by fireclay, magnesia, or the like, and the insulated covers are similarly protected. In the cover of the primary cell are cemented graphite or other anodes 9, connexion with which is made by conductors 14 dipping into molten lead or the like in holes in the cover and in the anodes. Iron or steel cathodes 10 may be attached to four subsidiary covers 15 of the secondary cell, connected to the main cover by flexible conductors so as to be removable for ladling out the magnesium without interrupting working. Doors 18 are provided in the covers for the introduction of electrolyte. Specification 152,402 is referred to.
Patent GB-328901-A (GB)
Title: Improvements in stop-valves
IPC: F16K1/24
Filed: 1929-09-24
Abstract: 328,901. Karnath, K. Oct. 2, 1928, [Convention date]. Hinged valves; elastic valves.-In a stop valve comprising a valve plate controlled by a rotary spindle having cams or the like which coact with members on the plate so that the spindle moves the plate to or from its seat, such as is described in Specification 262,116, the valve plate is made elastic, generally of springy metal, and is provided with stiffening ribs extending transversely of the direction in which the plate is rolled off its seat. Cams 15, 16, and 18 are mounted on the spindle 11 and are kept spaced correctly by abutments 21. These cams engage yokes 17 which support the flexible valve plate 7, which is provided with stiffening ribs 24, Fig. 8, and a boss 19 engages the cam 18 while projections 23 on the plate can be engaged by levers 22 on the spindle, Fig. 6. The cam 16 acts before the cam 17 and the valve plate is lifted off its seat easily, by a rolling action, being then rotated so as to offer its edge to the flow of water as in Fig. 6 (dotted). A seating ring 8 presses on the valve seat 4 which is wider at the seat than at the entry port. The spindle may be actuated through reducing transmission gear which may be disconnected when actuation through 180‹ rotation of a hand wheel is desired.
Patent GB-187849-A (GB)
Title: Cigarette case with a lighter combined to be mounted on walking sticks, umbrellas, and the like articles
IPC: A45B3/00
Filed: 1921-11-01
Abstract: 187,849. Singer, O. Nov. 1, 1921. Addition to 168,287. Combined with cigarette cases and igniting-appliances. - A walking-stick, umbrella, &c. on which is mounted a cigarette case combined with lighter, has the inner tube set out in the parent Specification replaced by a plate D integral with the outer tube A. A stick lighter E with a steel point, adapted to be rubbed on a flint H is employed.
Patent GB-291672-A (GB)
Title: Improvements in and relating to methods of and apparatus for producing rubber tubing for inner tubes or other articles
IPC: B29D23/24
Filed: 1927-10-31
Abstract: 291,672. Moomy, C. S. Oct. 31, 1927. Extrusion machines. - Relates to the manufacture of rubber tubing, particularly for inner tubes for tyres, and consists in subjecting the extruded tubing to the action of a fluid moving in the same direction both to cool the tubing and prevent partial vulcanization and also by regulation of that fluid to ensure uniform dimension. As shown, rubber is extruded from the die 11 of a press 10 in the form of a tube which passes into a trough 15 having a slight downward slope. A current of cold water is directed along the trough through pipes 17 and cold water is sprayed upon the tube through nozzles 22, 22<a> of which the nozzles 22 nearest the press 10 are directed away from the press. The pressure of the water through the nozzles is regulatable to determine the speed of withdrawal of the tube and its dimensions. To maintain the temperature constant, water is also supplied, through pipes 30. The water discharges into a trough 29<a> having an outlet 16, the tube passing to a belt 23 passing around a drum 24 forming part of a work table where the tubing is cut into lengths, fitted with valves and formed into inner tubes. Between the trough 29<a> and belt 23, the tubing passes between backwardlydirected air jets 26 for drying purposes.
Patent GB-759341-A (GB)
Title: Improvements in filters and filter material for use in filtering tobacco smoke
IPC: B01D39/00
Filed: 1954-10-08
Abstract: The residual liquor obtained in the manufacture of paper pulp by the caustic soda process is concentrated by evaporation of water to a thick paste which is treated with weak acid, such as sulphuric or hydrochloric acid of 16 DEG  to 22 DEG  B<\>ae., to precipitate lignin, which is then separated by decantation, filtered and dried at a temperature not above 90 DEG C.  The lignin so obtained is treated (a) with turpentine or alcohol at about 60 DEG C. to extract resins, &c. (b) with a mixture of three parts by volume of sulphuric acid and one part of hydrochloric acid at an elevated temperature below 100 DEG C. and (c) with concentrated sulphuric acid of at least 62 DEG B<\>ae. at above 220 DEG C., e.g. for five to six hours, the resultant carbon being treated with hydrochloric acid at normal temperature, washed with distilled water and dried at normal temperature.  For use in tobacco smoke filters (see Group VI), the carbon is treated with steam, preferably after washing with sodium carbonate solution.ALSO:Filter material comprises cellulosic material in combination with porous or finely-divided carbon of at least 96 per cent, preferably over 99 per cent, purity, obtained by a wet process from lignin produced in the manufacture of paper by the soda process and heated as a step in the wet process with concentrated sulphuric acid at a temperature of over 220 DEG C. e.g. for five to six hours, the carbon being then steamed, preferably after alkaline washing.  Details (see Group III) of a preferred wet process are given.  The cellulosic material should be chiefly alpha cellulose and may be cellulose wool, tobacco or paper, with which the carbon is intimately associated, or the carbon may be situated between plugs of cellulose wool or paper.  The filter material may be incorporated as filter tips into cigars or cigarettes or into expendible filter units for pipes or for cigar or cigarette holders which may themselves be of paper and expendible.  According to the Provisional Specification, carbon derived from coconut shells heated in a closed retort, crushed and steamed may be used.
Patent GB-171980-A (GB)
Title: Improvements in carburetters
IPC: F02M19/02
Filed: 1921-11-01
Abstract: 171,980. Sj÷gren, W. Nov. 22, 1920, [Convention date]. Closure members, hinged.-In a carburettor of the type in which a single fuel duct for slow and normal running is located in the wing of a throttle valve, the fuel supply being controlled from the throttle, that wing of the throttle which is nearer the choke tube and contains the fuel duct, is of narrow width and moves between lobes 37; the other wing is of the usual form and provided with an adjustable segment 39 which restricts the air passage as the throttle opens. In place of the part 39, a segmental member 44, Fig. 9, may be adjustably mounted in the casing below the throttle.
Patent GB-291673-A (GB)
Title: Improvements in or relating to lightning conductors
IPC: H02G13/00
Filed: 1927-11-01
Abstract: 291,673. Pickard, W., and Spencer, R. Nov. 1, 1927. Lightning-conductors.-A lightning- conductor comprises a forced rod a carried by bracket, c. A two-part band f, adjustable around a chimneystack &c. by bolts g, Fig. 5, is threaded through a slot e in the bracket c. A metal conductor b, twisted in a coil b<1> to allow for expansion, and attached to the chimney h by holdlasts j, is held in position on the lower end of the rod a by a nut i and is earthed in a perforated, inverted, vessel l. The rod a, and preferably the conductor b, are electrolytically coated with platinum, iridio-platinum or like non-oxidizing and non-fusible material. A suitable bath consists of 15 grammes of platinum ammonium chloride, 5 grammes of ammonium chloride and 120 grammes of citrate of soda. dissolved in water at a temperature of 100 degrees Fahrenheit to make up one litre. Specification 296,647 is referred to.
Patent GB-427736-A (GB)
Title: Fused bifocal lens
IPC: G02C7/06
Filed: 1933-10-20
Abstract: 427,736. Spectacle lenses. CULVER, E., 42, Coolhurst Road, Crouch End, and EMERSON, A. H., 24, Wentworth Park, Finchley, both in London. Oct. 20, 1933, No. 29126. [Class 97 (i)] In the manufacture of a fused bifocal lens, having a predetermined amount of prism in its reading portion, a composite button for fusion into a depression in a blank C consists of a piece of glass A, generally of the same refractive index as the blank, formed on one edge with an indentation D, and a piece of glass B, of higher refractive index having a projection F corresponding to the indentation D, the pieces A, B being united with the projection F engaging in the indentation before the button is fused into the blank. After fusion the lens has the form shown in Fig. 5 the reading portion having a straight upper edge D and side edges E preferably inclined at about 120‹ to the edge D. The fused lens is ground from the bottom portion to introduce the desired amount of prism base up into the reading portion, the amount of prism being preferably controlled by measuring the shape of the segment circle, as suggested by the arcs S1 to S4, Fig. 5. By grinding also from one side, prism base in or out can be introduced. A number of similar composite buttons can be made from two blocks of glass one having a groove in one face and the other a corresponding rib, the blocks being fitted together and then cut up into sections. Specifications 255,941, [Class 97 (i)], and 346,866 are referred to.
Patent GB-400769-A (GB)
Title: Improvements in feed mixers
IPC: B01F7/04
Filed: 1932-10-19
Abstract: 400,769. Mixing-machines. PHILLIPS, A. M., 43, Broadwater Avenue, Letchworth, Hertfordshire, and TAYLOR, A. H., Fittocks, Cheveley, Newmarket, Cambridgeshire. Oct. 19, 1932, No. 29298. [Class 86.] A machine for mixing sweetening liquids, such as molasses, with grain, chaff and similar cattle feeds, comprises a fixed casing b of conical shape converging towards the outlet end b<1>. Grain &c. is fed in at a and molasses at i, the two being mixed by arms c and inclined beaters d, e on a rotary shaft. Baffles g and g<1> are fixed to the casing. Molasses is fed by a rotary pump through a suction pipe j from a tank (not shown). The delivery of the pump can be varied by a valve operated by a hand lever k. The pump is driven by a belt l<2> or by spur gearing off the shaft f. The outlet end of the casing b has a shroud b<1> with two downwardly directed delivery shoots b<2> alternatively opened by a diverting plate h.
Patent GB-899000-A (GB)
Title: Improvements in and relating to marking apparatus
Inventor: TAYLOR HAROLD WILLIAM
IPC: B41F17/00
Filed: 1959-08-27
Abstract: <PICT:0899000/III/1> <PICT:0899000/III/2> As shown (Fig. 1) a marking apparatus includes a nozzle 10 for dispensing fluid on to a body 15 to be marked, a duct 9 connecting the nozzle 10 to a reservoir 1 for marking fluid 6, a conduit 14 leading into the duct 9, and a source of gas (which may be air) under pressure coupled to the reservoir 1 and the conduit 14 the relative dimensions of the duct 9 and conduit 14 being such that the fluid fed into the duct 9 by the gas pressure in the reservoir 1 will block the end of the conduit 14, causing the gas pressure in conduit 14 to rise and expel through the nozzle 10 a quantity of marking fluid fed into the duct 9.  The operating procedure is as follows:-The gas pressure acting on piston 7 which rests on the surface of the fluid 6 in reservoir 1 forces fluid into duct 9 resulting in a blockage of conduit 14 formed by the end of side tube 11.  Now the pressure in conduit 14 rises and the dimensions of the bore of duct 9 and conduit 14 are such as to force gas into tube 8 and thus separate some marking fluid which is expelled on to the body 15.  The piston 7, carrying a graduated stem 16 which allows determination of the level of the fluid, establishes a circuit between two spring-loaded plungers 17 (only one shown) when the level of fluid falls too low and this results in a visual or sound signal to indicate such. Modifications are described in which the piston operates a level-indicator by means of a wire or a magnet. The marking device may be used in conjunction with an ultrasonic flaw detecting equipment as shown in Fig. 4.  This combination operates as follows: Pulses of energy which have been transmitted from an ultrasonic transducer 35, which has transmitting and receiving sections under the control of a trigger generator 36, to a body undergoing test are returned to the receiving section of the transducer 35 which sends signals to a gate circuit 37 which is opened for a time corresponding to the reception of echo signals from a particular stratum of the body under test by a gate pulse generator 41.  When a flaw echo is signalled the contacts p  401 of relay unit 40 are closed which results in the driving assembly 43 of an air valve 44 making contact with an energizing source and so gas pressure is applied to the marking device, which has valves 47 and 48 fitted to inlet tube 3 and side tube 11 respectively to enable correct adjustment of pressure, to initiate the marking.  In a modification, two transducers, each associated with a marker, are used alternatively.  They are transversed over the surface to be examined by a scanning drive, and a delay is introduced into the operation of the marker which is trailing the operative transducer, so that a mark is applied over any flaw which is detected.  In order to produce an interrupted marking, the air valve may be caused to operate intermittently by a relay with a capacitor connected in parallel with its windings.
Patent GB-483681-A (GB)
Title: Variable thrust screw propellor blades
IPC: B64C11/16
Filed: 1936-10-29
Abstract: 483,681. Screw propellers. PATERSON, T. W. Oct. 29, 1936, No. 29401. [Class 114] A screw-propeller blade which is slotted is provided with an adjustable obturator within the slot or aperture for controlling the area thereof. The blade a is provided with a central slot c and there is placed in it a member c<1> on a spindle c<2> which us connected near the hub with gearing e, d, whereby the member c<1> may be rotated out of the position in which it closes the slot into other positions partially or fully opening the slot. In one form of actuation, a rack and pinion gear may be used, the stem of the rack carrying a piston and being movable within a cylinder by fluid pressure.
Patent GB-676988-A (GB)
Title: Improvements in or relating to high-pressure mercury vapour discharge tubes
IPC: C09K11/76
Filed: 1949-11-17
Abstract: 676,988. Discharge tamps; luminescent materials. PHILIPS ELECTRICAL, Ltd. Nov. 17, 1949 [Nov. 20, 1948], No. 29444/49. Class 39 (i). An electric lamp comprises a high-pressure mercury vapour discharge tube enclosed in a bulb which is internally coated with a luminescent layer containing calcium fluorochlorophosphate activated by antimony and manganese. Specification 578,192 is referred to.
Patent GB-1125924-A (GB)
Title: Organic bismuth derivative
IPC: C08B37/06
Filed: 1966-06-30
Abstract: 1,125,924. Gastrointestinal medicines. ROUSSEL-UCLAF. 30 June, 1966 [1 July, 1965], No. 29520/66. Heading A5B. [Also in Division C3] A pharmaceutical composition comprises bismuth aluminium pectate as the active ingredient, and may be used on its own or in conjunction with other pharmaceutical agents or excipients. It is administered perorally in the form of dosage units, e.g. sachets, or powders, pellets, emulsions, gels or milks, and has activity in the treatment of gastro-enterital disturbances. In examples, compositions comprise this compound together with a NaCa and citric acid syrup or raspberry syrup or (b) bismuth subnitrate.
Patent GB-1057256-A (GB)
Title: Preparation of flame-resistant polyurethane foams
IPC: C08G18/28
Filed: 1963-07-26
Abstract: Acid-esters of phosphoric acid and oxyalkylation products thereof are prepared by: (A) reacting ethylene glycol with H3PO4/P2O5 and reacting the resulting acid ester with propylene oxide; (B) reacting P2O5 with propylene glycol/n-butanol and oxypropylating the product; (C) reacting P2O5 with ethylene glycol/n-butanol and oxypropylating the product; (D) reacting n-butanol with P2O5 to give a mixture of mono- and di-butyl phosphates and then oxypropylating.  Various popylene oxide/H3PO4 reaction products are also prepared.ALSO:A process for preparing a cellulated polyurethane comprises reacting a mixture of (1) a polyol containing at least 3 OH groups and consisting essentially of C, H and O; (2) an organic polyisocyanate containing an average of 2.3 to 6 isocyanato groups and containing essentially no urethane linkages; and (3) a phosphorus-containing polyol which is prepared by reacting at least one monohydric or dihydric alcohol and an acid containing a phosphoryl or thiophosphoryl group or an anhydride thereof to form an acid ester and then reacting the acid ester with an alkylene oxide containing 2 to 8 carbon atoms (includes styrene oxide), and, if desired, (4) a catalyst for urethane formation, and (5) a blowing agent.  A surfactant (6) may also be present. Suitable isocyanates (2) include diphenylmethane diisocyanate (said to have an isocyanate functionality of about 2-5), compounds of formula OCN,R(CY2R1-NCO)n, where R and R1 are arylene, Y is H, alkyl or aryl and n is 1-3 to 4, and "polymethylene polyphenylisocyanate," and these may be used alone or with various diisocyanates.  The phosphorus-containing polyols (3) include propylene oxide condensate of acid phosphates derived from ethylene glycol, propylene glycol/n-butanol, ethylene glycol/n-butanol, and of a mixture of mono- and di-n-butyl phosphates.  The other polyol (4) may be n oxyalkylated sugar or glucoside or oxyalkylated polyphenols such as condensates of phenols and aldehydes or ketones. The blowing agent if present may be carbon dioxide and/or a chlorofluorocarbon. Master batches comprising the components other than the isocyanate may be stabilized with polyols containing t-amino groups as disclosed in Specification 1,057,257.
Patent GB-802916-A (GB)
Title: Improvements in or relating to curtain dampers
Inventor: LOEWENHEIM ERNST
IPC: F23L13/06
Filed: 1955-10-18
Abstract: 802,916. Furnace flue dampers. THERMOTECHNICAL DEVELOPMENT, Ltd. Oct. 18, 1956 [Oct. 18, 1955; Aug. 1, 1956], Nos. 29714/55 and 23754/56. Class 51 (1). In a curtain damper the marginal edges in the direction of movement are sealed, with respect to a surrounding frame, by strips of flexible sheet material. As shown, a heatresistant sheet-metal curtain 2, Figs. 2, 3, having marginal leaf-springs 2a and guided by bars 3 is adapted to close a frame 1. The bars 3 cause the strips 2a at each lateral curtain side to flex against a bracket 1a in the frame and an abutment 1b (giving two lines of contact). The curtain is roller operated, spring metal heatresistant sheet strips 10 forming a top seal. In "damper closed " position the bottom marginal spring-metal curtain edge is flexed against a frame abutment bar by the interengagement of frame wedges 11 and a weighted curtain member 2b. In a modification each lateral curtain side has two leaf-spring strips 2a and these are flexed to bear one on each side of a frame abutment member. Marginal strips 14, Fig. 5, secured to a frame member 13, bear one on each side of a curtain marginal strip 2b in yet another modification. In another embodiment the two bars 3 on one side of the curtain are replaced by a pivoted louvre damper which may be swung into position to support the curtain. When the curtain is rolled up the damper serves for regulating. In a further embodiment the curtain 2 runs between rollers 5, 18, Figs. 8, 9, and the marginal strips 16-attached neither to curtain or frame-are raised or lowered with the curtain. The curtain 2 may be in the form of a rigid box with marginal strips on all sides the box being moved across the frame by actuation of a screw-threaded rod. This construction may be modified by making the curtain flexible (metal sheet with spaced parallel rods at the back) and replacing the threaded rod by two spaced parallel rods which extend through the curtain operating gear casing to a threaded nut and screwed rod actuating device. According to the first Provisional Specification the curtain 1, Fig. 2-spring-metal sheet reinforced with bars 2-has a three-point contact, X, Y, Z, with the frame 3 at its lateral edges. In another embodiment the marginal strips D, Fig. 11, are carried by curtain armour F which is independent of, but moves with, the curtain C. This Provisional Specification describes and illustrates various marginal strip designs. Specifications 453,477, 731,252 and 760,585 are referred to.
Patent GB-601356-A (GB)
Title: Improvements in or relating to the splicing of webs or sheets with heat sensitive bonding strips
IPC: D06M23/18
Filed: 1945-11-07
Abstract: 601,356. Seaming sheet materials. JOHNSON & JOHNSON (GT. BRITAIN), Ltd. Nov. 7, 1945, No. 29744. Convention date, Oct. 19, 1944. Drawings to Specification. [Class 42(i)] Sheet materials are spliced together by bonding together by heating overlapping end-portions with an open mesh filamentary bonding strip of a copolymer of vinylidene chloride and vinylchloride. Preferably the bonding strip is loosely woven permitting relative movement of the filaments. The strip may be located between the end portions or external to them, in which latter case the heat is preferably applied from the side remote from the bonding strip. The process may be applied to unite paper, cloth, synthetic fabrics, woven glass, metal foil and plastic film.
Patent GB-1140237-A (GB)
Title: Improvements in or relating to screw extrusion filtering presses
Inventor: SOLBERG PER
IPC: B30B9/16
Filed: 1967-06-28
Abstract: 1,140,237. Extrusion filtering press. STORD BARTZ INDUSTRI A/S. 28 June, 1967, No. 29765/67. Heading B1D. A double-screw extrusion filtering press has each screw formed with a helical groove, in its core, which receives the crown of the external thread of the other screw, whereby circumferential slip' of material between screws is prevented. The screw axes may be parallel or converge, the outer diameter of the threads may decrease towards the outlet and the core diameter of the screws may vary axially. The helical grooves may extend along the wholescrew or only near the outlet.