baber/WOPTO huggingface dataset:
Patent GB-237702-A (GB)
Title: An improved display board for tailors and others
IPC: A47F7/18
Filed: 1924-06-30
Abstract: 237,702. Savill, W. C. June 30, 1924. No Patent granted (Sealing fee not paid). Cards for displaying. - In display boards for tailors &c. in which a piece of material is clamped between a panel having an opening in the shape of a garment and a back-board formed with raised portions which project through the opening and with relief portions to indicate creases, grooves or recesses 11 are. provided in the raised portions 4 of the back board 3 into which the cloth is pressed to form lines of fold to represent seams, overlapping edges, &c. Suitably bent wires may be employed to force the material into the grooves, the wires being pushed in out of sight or removed. Alternatively a number of strips may be connected together to form a frame to be laid on the material to push. it into the grooves. The raised portions 4 may be integral with the back-board 3 or attached thereto, and may consist of laminations or aluminium castings or be moulded. Island spaces 8 are filled by inserts pressed into recesses in the back-board 3. The head &c. of the figure may be painted &c. on the panel 1, or be upon paper or cardboard, or be modelled in wax. The strips forming trouser creases are of triangular cross-section, tapering to a point at their upper end. Buttons mounted on pins may be pushed into the material and back-board.
Patent GB-370243-A (GB)
Title: A process of purifying coke oven or similar gas, and apparatus for carrying out the process
IPC: C10K1/04
Filed: 1931-05-28
Abstract: 370,243. Gas washing and condensing processes. KEMMER, H., 4, Zahringerstrasse, Wilmersdorf, Berlin. May 28, 1931, No. 15670. [Class 55 (ii).] In the purification of coke oven or similar gas by fractional cooling at low temperature, naphthalene, benzole, water and ammonia are separated from the gas during the earlier stages of intensive cooling and sulphur compounds during the later stages of intensive cooling. The gas from a producer 1 passes through a cooler 3, tar separator 4 to a preliminary cooler 6 wherein the gas is cooled to about 5-20‹ C. by means of cold ammonia water from a container 31. The gas passes to a spray cooler 7 in which it is sprayed with benzole wash oil at a temperature of - 50--20‹ C., the oil being cooled in a refrigerator 10. The enriched wash oil is treated in separators 13, 311. Sulphur compounds are removed from the gases in a tower 8 which is sprayed with alkaline solutions containing iron oxides in suspension and at a temperature of - 5-- 20‹ C. The cooling liquids required are obtained from a refrigeration system in which waste gases from the producer are utilized.
Patent GB-552339-A (GB)
Title: Improvements relating to the construction of ships
IPC: B63G9/02
Filed: 1941-12-05
Abstract: 552,339. Ships. MARSHALL, J. H. Dec. 5, 1941, No. 15685. [Classes 113 (i) and 113 (ii)] To prevent the sinking of ships if damaged by torpedoes, or collision a number of compartments are formed inside the hull by welding or otherwise securing plates e, f, g to the rib girders c, and the compartments are filled with compressed air through valves i; and are fitted with relief valves which open at pressures of 100 to 500 lbs. per square inch and by means of which the pressures in the various compartments may be equalized if desired.
Patent GB-1324566-A (GB)
Title: Preparation of tris 2-hydroxyethyl isocyanurate
IPC: C07D251/34
Filed: 1971-05-19
Abstract: 1324566 Tris(2-hydroxyethyl)isocyanurate ALLIED CHEMICAL CORP 19 May 1971 [20 May 1970 22 March 1971] 15746/71 Headnig C2C Tris (2-hydroxyethyl) isocyanurate is prepared by reacting cyanuric acid with ethylene oxide at a temperature of 70-170‹ C. in the pressure, as solvent, of an alkyl or cycloalkyl ketone having up to 7 carbon atoms. The reaction may be conducted under a pressure of 1-50 atmospheres, optionally in an inert gas atmosphere, and either an acid or basic catalyst may be present. Some tris (2-hydroxyethyl)- isocyanurate is preferably present in the reaction medium at the start of the reaction, and, after separation of the product from the reaction mixture, the mother liquor may be recycled to a subsequent reaction batch.
Patent GB-386216-A (GB)
Title: Improvements in and relating to the manufacture and production of delustered cellulose acetate yarn
IPC: D01F2/30
Filed: 1932-06-04
Abstract: Cellulose acetate yarn of reduced lustre is obtained by adding chlorinated naphthalene dissolved in acetone to a solution of cellulose acetate in acetone and then extruding the solution in known manner.  The proportion of chlorinated naphthalene is preferably between 5 and 20 per cent of the weight of cellulose acetate. Alternatively, the chlorinated naphthalene may be dissolved in the acetone used for dissolving the cellulose acetate, and if desired it may be dissolved simultaneously with the cellulose acetate.  In an example, cellulose acetate is dissolved in acetone containing a small proportion of water and before dissolution has been completed an acetone solution of " halowax " is added and the two solutions are thoroughly mixed. The solution is formed into filaments by the evaporative spinning method.
Patent GB-713231-A (GB)
Title: Improvements in or relating to circuits for suppressing noise in wireless receivers
IPC: H03G3/28
Filed: 1952-06-24
Abstract: 713,231. Radio receiving circuit. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 24, 1952 [June 27, 1951], No. 15884/52. Class 40 (5) In a muting circuit, noise voltages from a receiving channel 1, 2 are passed from the output of the detector to a noise amplifier 6, via a high-pass filter comprising a condenser 5 and resistance 15. The amplified noise is rectified by a diode 9 and the voltage appearing across the diode load resistance 10 is applied via a filter network 17 to block a low-frequency stage 4 in the receiving channel. The muting is removed upon reception of a signal by the reduction in noise which then occurs. Release of the receiving channel is made more rapid by opposing to the bias developed across resistance 10 a fixed bias which is derived from an adjustable resistance 8 in the cathode circuit of the valve 6. The cathode potential of the valve 6 may be stabilized by means of a resistance 23 connected to the screen grid circuit. In order to prevent the application of positive potentials to the grid of the valve 4, a limiter diode 24 is connected across the output of the filter 17.
Patent GB-439055-A (GB)
Title: Improvements in or relating to the manufacture of amines
Filed: 1934-05-28
Abstract: In the manufacture of nitroarylamines by the action of ammonia on nitroaryl halides, having at least one halogen atom and one nitro group in o- or p-position to one another, in a vessel in which the part in contact with the reaction mixture is subject to iron corrosion, the corrosion of the vessel is inhibited by adding to the reaction mixture a secondary or tertiary arylamine, aralkylamine, alkylarylamine, or heterocyclic amine, or a guanidine or a thiourea. Specified inhibitors are dibenzylaniline, diethyl-1 - naphthylamine, monoethyl - m - toluidine, ethyl - o - toluidine, dimethyl - m - toluidine, monoethylaniline, dimethylaniline, pyridine, quinoline, isoquinoline, thiocarbanilide, diphenylguanidine, di-o-tolylguanidine, and diphenylamine.  The reaction may be effected with aqueous or anhydrous ammonia and in the presence or absence of an auxiliary acid-binding agent such as sodium carbonate or bicarbonate.  In the examples: (1) p-nitrochlorobenzene is heated with aqueous ammonia in a steel autoclave with the addition of pyridine or (2) a mixture of pyridine bases or (3) dimethylaniline; p-nitraniline is obtained; (4) o-nitraniline is obtained from o-nitrochlorobenzene as in example 1; (5) 4-chloro-2-nitraniline is obtained from 2 : 5-dichloronitrobenzene as in example 1; (6) 2 : 4-dinitrochlorobenzene is heated with aqueous ammonia in an iron autoclave with the addition of quinoline; 2 : 4-dinitraniline is obtained; (7) 4-nitrochlorobenzene-2-sulphonic acid is heated with aqueous ammonia in an iron autoclave with the addition of ethyl-o-toluidine and sodium carbonate; 4-nitraniline -2-sulphonic acid is obtained.  Other nitroarylamines similarly obtainable from the corresponding nitroaryl halides are 4-nitro-1-naphthylamine, 3 - methoxy - 4 - nitraniline, 3 - nitro - 4 - aminodiphenyl, 2 - nitraniline - 4 - sulphonic acid, 2 - nitro - 4 - bromoaniline, 3 - nitro - 4 - aminotoluene, 2 : 4 - dinitraniline - 6 - sulphonic acid, and 2 : 4 : 6 - trinitraniline.  The Specification as open to inspection under Sect. 91 states that the nitro group in the starting materials may be replaced by another "activating substituent."  This statement does not appear in the Specification as accepted.
Patent GB-683720-A (GB)
Title: An attachment for a ladder
IPC: E06C7/14
Filed: 1950-06-27
Abstract: 683,720. Ladder attachments for supporting articles. EVANS, W. J., and BROOKHOUSE, A. July 16, 1951 [June 27, 1950], No. 15966/50. Class 20(ii) An attachment for a ladder having tubular rungs for supporting articles such as paint pots comprises a metal rod member 1, Fig. 2, or tubular member 15, Fig. 4, slightly bowed to provide a spring fit in a tubular rung 2 and having an extension 9 adapted to project from the end of the rung to support the article. The extension 9 is provided with a hand grip 7 and a wire hook 12. As shown in Fig. 4, the tubular member 15 is provided in addition with a telescopic extension rod 16 adapted to project from the other end of a tubular rung and to which a hook may be secured.
Patent GB-277294-A (GB)
Title: Improvements in dental hand-pieces
IPC: A61C1/18
Filed: 1927-06-16
Abstract: 277,294. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. Sept. 8, 1926, [Convention date]. Dental engines.-A hand-supported dental tool is provided with a screw-threaded ring d rotatable about the axis of the tool and engaged by a projection i on the connecting sleeve l so as to position the tool-holder f in the casing a. The corresponding screw-threaded end c of the casing is provided with a slot e for the reception of the projecting rib i. The adjusting ring is enclosed by a nut k connecting the parts a, l and it may engage within instead of upon the casing a.
Patent GB-529435-A (GB)
Title: Stiffeners for boots, shoes, and similar articles of footwear
IPC: A43B23/16
Filed: 1939-05-31
Abstract: 529,435. Boot &c. stiffeners. GREEN & SON (GRENSON), Ltd., W., and LIEBMANN, E. A. May 31, 1939, No. 16082. [Class 17 (ii)] A counter or other stiffener for shoes &c. comprises a piece 1 of felt impregnated with celluloid or other stiffening solution and. having sewn to one side, to leave the margin 3 free, a piece 2 of scrim or other openly woven fabric. In use, the stiffener in float form is treated with acetone &c., left in an air-tight container for several hours, and then incorporated in the shoe prior to lasting, so that it is moulded to shape during the lasting operation. It may be treated on one or both sides with paste or glue prior, to lasting.
Patent GB-379731-A (GB)
Title: Improvements relating to hatching and rearing chickens
IPC: A01K41/00
Filed: 1931-06-02
Abstract: 379,731. Hatching and rearing appliances. SHERLOCK, W. V., Wynstrode, Billingshurst, Sussex. June 2, 1931, No. 16083. [Class 5 (ii).] In a chicken incubating and rearing installation, the rearing compartment or compartments with the feeding run or runs is or are arranged in a single tier above the incubator compartment or compartments below which is or are provided a water tray compartment or compartments. Air enters at h, passes over water trays a<1>, a<2> .. in chambers A<1>, A<2> .., through openings h<1> in the false bottoms b<1>, b<2> .. of the incubator compartments B<1>, B<2> .. and through thermostatically controlled dampers El, E2 .. into passages D<1>, D<2> .. which are flanked by portable slidable rearing compartments comprising brood chambers C<1>, C<2> .. and runs F<1>, F<2> ... The roofs of the runs and the hinged sides of the incubator compartments are of glass known under the registered Trade Mark " Vita." Paper from rolls K passes over the floors of the rearing compartments to receive droppings, and can be removed as required. A heating fluid circuit as shown in Fig. 3 provides for the compartments A, B, C singly, in pairs, in series or in any required order but so that if the compartment A is heated the heating fluid always flows therethrough first. The heating fluid may be water heated electrically or water or air heated by oil or gas as described in Specification 380,064.
Patent GB-788707-A (GB)
Title: Method for the production of ortho-vinyltoluene and indene
IPC: C07C4/12
Filed: 1956-05-24
Abstract: Ortho-vinyltoluene is produced as a major product and indene as a minor product when an ortho-propyltoluene is thermally decomposed. Preferably the vapours of the orthopropyltoluene are passed through a reaction zone at 600-750 DEG  C. at a rate such that from 10 to 80 per cent conversion occurs, and the aromatic products are fractionally distilled to obtain ortho-vinyltoluene free of indene. Preferred conditions include the presence of at least 0.5 part by weight of an inert diluent such as steam, nitrogen, methane, benzene, toluene or carbon dioxide, a temperature between 650 DEG  and 725 DEG C. and a rate of flow to give 20 to 70 per cent conversion.  A dehydrogenation catalyst may be present, such as alumina, silica-alumina, ferric oxide, chromium oxide and mixtures of ferric and chromium oxides to which a minor amount of potassium oxide may be added.  In a typical example, ortho-isopropyltoluene with three times its weight of steam is passed through a dehydrogenation catalyst comprising ferric, chromium and potassium oxides, at 700 DEG  C. to give 21.6 per cent of ortho-vinyltoluene and 8.5 per cent of indene based on the isopropyltoluene feed.  Ortho-n-propyltoluene may also be used as starting material.
Patent GB-476690-A (GB)
Title: Improvements in means for adjusting the tension of coiled springs
IPC: E05F11/38
Filed: 1936-06-10
Abstract: 476,690. Adjusting coiled springs. WATKINSON, A., and BECKETT, LAYCOCK, & WATKINSON, Ltd. June 10, 1936, No. 16233. [Class 108 (iii)] A tension-adjusting device for a coiled spring comprises two members one of which is fixed and the other carried by or constituted by the spring-spindle, the spring being adapted to press the members towards each other so that one or more projections on one member engage one or more ratchet teeth on the other member thus permitting rotation of the spindle in one direction only. As shown, a steel spring 18 is enclosed by an open drum 16 rotatably mounted on a projection 15 from the base 11 of a surrounding metal box, the drum being closed by a metal plate 38 mounted on a spindle 21 which passes through a dished portion 22 of the box-cover 12. The outer end of the spring engages a tongue 17 pressed-in from the drum and the tapered inner end engages a slot 20 in the spindle 21. A disc 23 on the spindle is formed with four radial projections 24-27, Fig. 6, two of which normally co-operate with two teeth 28, 29 pressed-out from the dished cover-portion 22. To reduce the tension of the spring, a key is inserted in the spindle and the disc 23 rotated anticlockwise, Fig. 6, so that the projections 24, 26 are clear of the teeth. The disc is then tilted first about the projection 26 and rotated clockwise and finally tilted about the projection 24 and rotated anticlockwise, the projections 24, 26 then being outside the teeth, when the spindle and disc are forced by the spring to rotate clockwise until the projections 27, 25 engage the teeth. The spindle is pulled into the box by the tapered end of the spring engaging the slot 20. When the spindle is rotated in a clockwise direction notches on the teeth limit the amount of rotation. The invention is applicable particularly to the spring-balances of vehicle windows in which case a metal tape 31 secured to and wound around the drum 16 passes through an aperture in the wall 10 of the box and the end of the tape is fastened to a hook 32 attached to the sash to be balanced. The box is adapted to be supported by brackets 34 having face-plates 35 abutting the front and back of the box.
Patent GB-576028-A (GB)
Title: Process for providing plastic articles with metallic coverings
IPC: B32B15/08
Filed: 1943-10-04
Abstract: A moulded article of thermoplastic or thermosetting substance is provided with a metallic coating during the moulding process by laying a piece of thinly rolled metal foil, coated on one side with a lacquer which softens under heat, on the moulded article whilst the latter is in the mould in a hot, soft and tacky condition, the lacquer being next to the article, and then pressing the foil and article together with a hot tool.  To facilitate handling, the foil may be initially backed with paper, cellulose hydrate foil or other hygroscopic sheet material which is stuck to the foil by water-soluble adhesive; after pressing, the paper &c. is moistened and peeled from the foil.  According to the first Provisional Specification the lacquer may be a solution of a mixture of resin and nitro-cellulose.
Patent GB-561527-A (GB)
Title: Improvements relating to systems for the rectification of alternating electric currents
IPC: H02M7/06
Filed: 1942-11-18
Abstract: 561,527. Rectifying alternating current. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. Nov. 18, 1942, No. 16308. [Class 38 (ii)] In a polyphase rectifying arrangement comprising a number of parallel-connected units A, B, each of which comprises a pair of transformers T1, T2, of which the primaries are in series, one being shunted by a condenser C, while the secondaries are Scott-connected to a polyphase group of rectifiers R1, R2, equalizing connections 17, 18, 19 are provided between the secondaries of the transformers to ensure equal division of load between the parallel-connected units. Specification 493,362 is referred to.
Patent GB-553763-A (GB)
Title: Method of carbonating lime and separating the same from magnesia
IPC: C01F11/18
Filed: 1940-11-11
Abstract: 553,763. 'Calcium carbonate ; magnesia. CLARK, G. M. (New England Lime Co.). Nov. 11, 1940, No. 16363. [Class 1 (iii)] Suspensions of lime and magnesia such as are obtained from slaked, burnt dolomite are carbonated so as to separate calcium carbonate in dense form suitable for use as a pigment, and to leave a magnesia suspension from which either pure magnesia or a magnesia containing calcium and suitable for use in making magnesia bricks may be separated. The carbonation is effected continuously and a definite concentration of. calcium hydroxide maintained in the liquid by regulating the feed of the suspension and of the carbondioxide. The particles of calcium carbonate remain suspended in the liquid for a definite period of time. The carbonation vessel 10 is continuously supplied with suspensionthrough an inlet 13 and with carbon dioxidethrough a pipe 16 with a distributing baffle 20. Paddles 11 agitate the liquid which is continuously discharged through an outlet 26. The concentration of dissolved calcium hydroxide is measured by a meter 24 operated according to resistance, conductivity, pH value or otherwise- and may be connected to a control device to vary the feed of the suspension or the carbon dioxide. The concentration is maintained below that at which the liquid is saturated with calciumhydroxide.
Patent GB-861055-A (GB)
Title: Gas discharge tube
IPC: H01J61/02
Filed: 1957-05-23
Abstract: 861,055. Discharge lamps. BECKMAN INSTRUMENTS Inc. May 23, 1957 [June 26, 1956], No. 16372/57. Class 39(1). A hydrogen-filled discharge tube for producing radiation comprises an anode 28 and a thermionic cathode 26 along the tube axis, an envelope 10 with a window 12, a tubular open-ended sheet nickel cathode enclosure 23 along the tube axis and a sheet nickel anode enclosure 22 having an aperture 25 substantially located on the tube axis, the aperture constricting the discharge from the cathode to the anode for producing a small region of intense radiation and the boundary of the aperture lying in an outside two-part tungsten plate 29 of the anode enclosure that is inclined at other than a right angle to the tube axis for allowing the passage of radiation produced at the aperture through the window. The anode enclosure is made of semicircular sections held together by tabs 34 welded together and by welded tabs 35 joined integrally with a circular section 36 through which extends a tube 37 of ceramic material through which extends the cathode conductor 16. The other cathode conductor 17 is welded to a post member 38 to which one of the tabs 34 is welded. The anode is a tungsten ring element supported within the anode enclosure 22 by integral tabs 43 welded to the anode conductor 18. The anode enclosure is closed by a ceramic plug 40 provided with an annular groove 44 to prevent electrical leakage and overheating. The cathode enclosure 23 is formed of semicircular sections supported by tabs 45 welded to the post member 38 and by tabs 46 welded together and joined integrally with a circular section 47 tightly encircling the ceramic tube 37. The tabs 34, 35, 45 and 46 of the anode and cathode enclosures 22 and 23 act as cooling fins and may be extended. The helical oxide-coated cathode filament 26 is connected to the ends of the conductors 16 and 17 by support strips 51. An inverted U-shaped wire 58 is supported by one of the cathode support strips 51 with its depending legs bridged by one or more arcuate barium-containing members which can be metal tubes 61 ground away at 62 to expose the barium for vaporization by induction heating. The vaporized barium reacts with some of the hydrogen filling to form a barium hydride coating 55 on the envelope 10. The chimney effect of the cathode enclosure 23 transports water vapour, formed by reaction of the oxides of the cathode 26 with atomic hydrogen formed by the intense discharge at the aperture 25, and the atomic hydrogen to the coating 55 for reaction therewith to form molecular hydrogen. The plate 29 of the anode enclosure 22 is outgassed by induction heating. Hydrogen fillings of 7, 15 and 50 mms. pressure are referred to.