baber/WOPTO huggingface dataset:
Patent GB-123051-A (GB)
Title: Improved Manufacture of Tubes.
Inventor: GUIDO DEBENEDETTI
IPC: B21C37/10
Filed: 1918-09-03
Abstract: 123,051. Debenedetti, G. Feb. 6, 1918, [Convention date]. Void [Published under Sect, 91 of the Act]. Metal tubes made from one or more strips of metal with the edges welded or soldered to form a longitudinal joint, particularly tubes of elongated cross-section for use in aeroplane &c. framework, are strengthened transversely by internal ribs, webs, or corrugations. The tube may be made from two strips 1, 2, bent as shown, and assembled on opposite sides of a web 4. The web 4 may be omitted, the inturned edges of the strips forming the strengthening ribs. In another form, a single strip is used, part forming the transverse web, and the remainder being bent round to form the outer wall of the tube. In a further modification, Fig. 6, made from a single strip, the inturned edges form a rib at one side, and the other side is formed with a corrugation of any desired cross-section. The corrugation and rib may meet within the tube and may be there welded together to form a transverse web. In other modifications, the tube is formed with two opposed corrugations.
Patent GB-709680-A (GB)
Title: Improvements in castors
IPC: B60B33/00
Filed: 1952-06-06
Abstract: 709,680. Castors. WHITFIELD & CO., Ltd., S. B., and ADAMS, E. March 10, 1953 [June 6, 1952], No. 14351/52. Class 52(1) A castor A has a spigot B of solid cylindrical section formed with three longitudinal ribs E, F, G, the rib G being wider than the other two and receiving a screw H which holds the castor in position. The ribs widen in width from top to bottom and may have a slight taper so that a wedge action is obtained when forcing the spigot into a leg. Specification 640,792 is referred to.
Patent GB-609478-A (GB)
Title: Calling dials
IPC: H04M1/31
Filed: 1944-07-27
Abstract: 609,478. Impulse transmitters. AUTOPHON AKT.-GES. July 27, 1944, No. 14362. Convention date, Sept. 13, 1943. [Class 40 (iv)] A calling dial s has a multiple - position switch associated with it, whose operating lever a can be carried around to position 3 by the finger during dialling and which then servos as a dialling stop. In this position the switch permits twoway communication. Other positions of the lever a may provide suppression of outgoing speech &c. Specifications 596,662, 606,805 and 608,857 are referred to.
Patent GB-715691-A (GB)
Title: Improvements relating to electric discharge apparatus
Inventor: CROWLEY-MILLING MICHAEL CROWLE
IPC: H01J49/02
Filed: 1951-06-18
Abstract: 715,691. Cathode-ray tubes; heavy-ion beam tubes. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 3, 1952 [June 18, 1951], No. 14449/51. Class 39(1) Means for indicating the deviation of a beam of negatively or positively charged particles comprises a series of plates arranged in different angular positions around the beam axis and connected each to an associated control circuit or circuits which actuate a separate indicating device. Plates A, B, C, D, separated by insulating strips are arranged as quadrants round the beam axis X and they are connected through resistances Ra, Rb, Rc, Rd, to earth. The potentials developed across the resistances are applied to the deflecting plates of an indicating C.R.T. Alternatively, the currents from the quadrants are passed through the deflecting windings of a C.R.T. Deviation is detected in linear electron or proton accelerators and spectrometers.
Patent GB-512270-A (GB)
Title: Improvements in quartz and like seals
IPC: H01J5/32
Filed: 1938-05-16
Abstract: 512,270. Uniting metal to vitreous materials. GENERAL ELECTRIC CO., Ltd., and FRANCIS, V. J. May 16,1938, No. 14530. [Class 36] A quartz or like strip seal comprises a strip attached at one or each end, edge or face to a tapered thicker wire or strip. Tapering may be effected mechanically or by etching or both before attachment to the strip. Specifications 472,126, 474,394 and 512,257 are referred to.
Patent GB-544102-A (GB)
Title: Improvements in method of and apparatus for preparing stiffened fabrics
IPC: D06C29/00
Filed: 1940-09-26
Abstract: 544,102. Compound fabrics. BRITISH CELANESE, Ltd. Sept. 26, 1940, No. 14604. Convention date, Sept. 26, 1939. [Class 140] In the production of stiffened fabrics e.g. collars, cuffs &c. by uniting an assembly of layers of fabric, at least one of which contains a derivative of cellulose, by the application of heat and pressure in the presence of a plasticizer for the derivative of cellulose and water, the water is applied directly to one layer only of the assembly, said layer being an outer layer. The water is preferably applied by means of a fabric moistened with water and applied between the heated pressing member and the assembly of fabrics. Instead of employing a separate moist cloth the moisture may be applied by wetting the cloth cover of the buck of the pressing machine. The adhesive or inner layer of fabric may be formed of yarns composed of a cellulose derivative or may be of non- plastic material coated or impregnated with a cellulose derivative and plasticizer is incorporated therewith by passing the fabric through a solution of the plasticizer, by adding plasticizer to the spinning solution from which the yarns are formed, or by incorporating the plasticizer with the cellulose derivative coating material. Plasticizers specified comprise dimethyl phthalate, dibutyl phthalate, diethyl tartrate, dibutyl tartrate and triacetin and may be used in amount of 40-150 per cent. of the cellulose derivative present. The pressing and moistening of the treated laminated fabrics is carried out in a press comprising a stationary heated head 8 and a movable buck 9 on which the fabrics are supported and brought into contact with the head 8 by toggle means. The buck carries on a frame 22 a pair of chambers 24. 25 in which the fabric is carried on spools 34 moistened by water baths 37, the fabric being rolled on and off the spools by rotating handles 35 and passed through pairs of rollers 31 to expose a fresh sheet of moistened fabric between the heads 8, 9 for each pressing operation.
Patent GB-152709-A (GB)
Title: Improvements in shade carriers for electric lampholders
IPC: F21V17/06
Filed: 1919-06-10
Abstract: 152,709. Hope, V. June 10, 1919. Shade-holders.-The shade H, Fig. 2, for an electric lamp-holder, more particularly such as is described in Specification 152,710, [Class 39 (ii), Electric lamps, Incandescent], is supported from the underside by a flange G on the lower part A<2> of the lamp-holder, and is secured by means cf a ring or nut K, adapted to bear on the top of the shade collar and having internally projecting segmental portions k' adapted to pass between and, by rotation, engage with discontinuous helical or obliquely-arranged threads M on the upper part of the lamp-holder. The flange G may be formed on the lower part A<2> or on a detachable sleeve, which fits on the lamp-holder and has inturned projections engaging in the bayonet-slots in which the lamp pins engage. The two parts A<1>, A<2> of the lamp-holder are secured together by a bayonetslot connexion, and in the absence of the shade the parts may be locked together by the nut K inverted, as shown in Fig. 9. In the case of a lamp-holder insulated to prevent accidental contact with the live parts, the shade is supported by the shoulder q<1> of an insulating-shield Q, Fig. 13, fitted to the lower part of the holder, and the securing-ring K, Fig. 12, is mounted in an insulating-cap P. The Provisional Specification states that the shade may be held in position (1) between flanges on the two parts of the lampholder by elastic means such as a rubber washer, metallic garter springs, or plate springs attached to a cut out of one flange; (2) by a ring connected by a spiral spring to the upper part of the lamp-holder; (3) by a double bow-spring fitting against abutments on the upper part of the lampholder casing and having depending portions contacting with the upper part of the shade; (4) by a ring screwed on, or having cam surfaces engaging with abutments on, the upper part of the lamp-holder.
Patent GB-851827-A (GB)
Title: Improvements in or relating to therapeutic hydroxycarboxylic acids and the manufacture thereof
IPC: C12P31/00
Filed: 1959-04-29
Abstract: The invention comprises two unsaturated non-aromatic hydroxycarboxylic acids "PGE" and "PGF," extracted from accessory mammalian genital material, their esters, salts and the corresponding saturated acids, their esters and salts, together with a process for their extraction from said material using an organic solvent, extracting the solvent extract with an aqueous alkaline solution and then isolating the pure acids, e.g. by countercurrent distribution, countercurrent extraction and/or reverse phase partition chromatography.  The acids are further characterised by a C:H:O ratio of approximately 4:7:1, a molecular weight of approximately 350, the infrared spectra of their methyl esters, smooth muscle-stimulating activity and melting points, ("PGF" m.p. 102-3 DEG C., "PGE" m.p. 115-7 DEG C). The esters are preferably prepared by reaction of the acids with the appropriate diazohydrocarbon.  Examples detail the extraction of PGE and PGF and the preparation of their methyl, ethyl, 2-ethylhexyl, cyclohexylmethyl, benzyl and benzhydryl esters.ALSO:Pharmaceutical compositions having a smooth muscle stimulating action with or without hypotensive activity comprise compounds "PGE", "PGF", (non-aromatic unsaturated hydroxycarboxylic acids isolated from mammalian accessory genital material), their saturated analogues, and/or salts or esters thereof in combination with a carrier or diluent.  The preparations may be in the form of tablets, capsules, pills, suppositories, bougies, or in liquid form as solutions, suspensions or emulsions, they may further contain preserving, stabilizing, emulsifying, asmotic or buffering agents and other therapeutic compounds e.g. antibacterials.
Patent GB-1495476-A (GB)
Title: Communications exchange systems
IPC: H04N7/173
Filed: 1975-04-10
Abstract: 1495476 Automatic exchange systems SIEMENS AG 10 April 1975 [30 April 1974] 14671/75 Heading H4K In a communications exchange system in which a plurality of subscriber stations TST are connected to an exchange VST via one or more connection lines TL suitable for the transmission of data both within and outside the speech frequency band, each station is provided with a number of facilities including a telephone circuit FS, a sound receiver TE, a video receiver BE, a video transmitter BS and a data terminal DE, and control signals indicating to the exchange which facility or combination thereof is required are provided by a signal generator WE. The exchange switching network includes three components: FN for telephone traffic; PN for radio and/or television programmes; and BN for other wide band communications traffic. Preferably each station TST also includes further sound or video-sound receivers TV1 ... TVx, each having its own programme selector U1 ... Ux. The system may operate in either a frequency-division or a time-division mode, and a plurality of stations may share a single connection line (TL1) Fig. 2 (not shown).
Patent GB-312230-A (GB)
IPC: F25B15/10
Filed: 1929-05-10
Abstract: 312,230. Siemens - Schuckertwerke Akt.-Ges. May 22, 1928, [Convention date]. Refrigerating, absorption systems for.-In continuous-cycle systems containing a pressure-equalizing inert gas and operating by evaporation or by evolution from solution, means are provided whereby under excessive low pressure in the condenser or reabsorber, gas can pass thereto from the inert gas system. This may be combined with means as described in Specification 259,985 for releasing excess of gas from the reabsorber or condenser. In the non-condensing system shown in Fig. 1, comprising a heated generator 9, gas separator 12, cold generator 1, absorber 2, and reabsorber 16, with a jet nozzle 5 in the inert gas system 3, 4, the gas space of the reabsorber communicates by a pipe 20 with a liquid-containing vessel 21, from which also lead a pipe 22 to a V- shaped pipe 6, 7 below the absorber, and a pipe 23 to the inert gas return pipe 4. In the event of low pressure in the reabsorber, due for example to excessive cooling, gas passes from the pipe 4, through pipe 23 and vessel 21 to the pipe 20 to equalize pressures. On the other hand excess of gas can pass from the reabsorber through pipe 20, and, displacing liquid into the pipe 23, pass through pipe 22 into the limb 7. It may there be absorbed or rise into the pipe 3 and enter the absorber, and does not reach the inert gas system directly. Any water vapour condensed in the pipe 4, or surplus liquid from the generator, reaches the pipe 23 and flows to the vessel 21. In a modification the vessel 21 is replaced by a sump in the reabsorber and pipe connections are provided between the sump and the gas space of the cold generator, and the inert gas pipe 4 and the bottom of the absorber. In a condensing system shown in Fig. 3, comprising a generator 31, gas separator 32, condenser 34, liquid collector 35, evaporator 37 and absorber 40, a liquid trap 44 is connected to the gas space of the condenser by a pipe 43, to the absorber by a pipe 46 with enlarged part 47, and to the bottom of the evaporator by a pipe 45. Should a low pressure arise in the condenser the liquid in the pipe 46 is accommodated in the enlarged part 47, and gas passes through the pipe 45, trap 44 and pipe 43 to equalize pressures. Excess pressure in the condenser forces liquid through the pipe 45, the liquid seal in the pipe 46 remaining unbroken.
Patent GB-612714-A (GB)
Title: Improvements in or relating to propeller blades and method of making same
IPC: B21D53/78
Filed: 1945-06-11
Abstract: 612,714. Making propeller blades. CURTISSWRIGHT CORPORATION. June 11, 1945, No. 14711. Convention date, March 9, 1944. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXIII] Stamping,-A propeller blade is made from complementary and similar plate pressings. The pressings, formed without pitch twist, are brought together, and welded, first at the ribs R and subsequently at the leading and trailing edges. Finally, the blade is inserted in a pressing block 21, 22 to apply the necessary twist, the blade being supported internally by air pressure, the open end of the blade being closed by the seal 37.
Patent GB-482434-A (GB)
Title: Improvements in or relating to counter current apparatus for the contacting of liquid-liquid or solid-liquid systems
IPC: C10G33/06
Filed: 1936-05-25
Abstract: <PICT:0482434/III/1> Apparatus for the countercurrent contact treatment of liquids or finely divided solids with immiscible or only partially immiscible liquids comprises alternating zones of quiescent and turbulent flow arranged axially in series in a single unit and communicating over their entire cross-section, the volume of each turbulent zone being limited substantially to that required for operation of mechanical agitators arranged therein, and each zone of quiescent flow being formed by equidistantly spaced plate-like members or by a plurality of tubular members, the plates or tubes being arranged sub-stantially axially.  The length and spacing of the plates or tubes may be determined for each operation by use of Stoke's sedimentation formula and Reynold's function for streamline flow.  A double countercurrent treatment may be obtained by providing an intermediate inlet for an additional liquid or solid.  The apparatus may be horizontal, inclined, or vertical.  Specified uses of the apparatus are: the treatment of mineral oils with selective solvents, sulphuric acid, fuller's earth, alkali or propane; the extraction of oils from seeds; the caustification of sodium carbonate; the production of phosphoric acid and of lithopone; and the cyanide treatment of gold ore.  One form of apparatus comprises a casing F with inlets A, C and outlets B, D, sets S .. S6 of concentric-frusto-conical members forming the quiescent zones, &c. a shaft O carrying stirring arms G within turbulent zones T1-T6.  The sets S .. S6 are made larger than the others.  Each set S .. S6 may be replaced by a member of both spiral and conical form.  In another apparatus shown the concentric cylinders of each set are axial or slightly inclined and are arranged so that one or each end forms a plane, a cone, or a sphere; or the parallel equidistant plates may be inclined, and alternately of different lengths to double the entrance space for the heavier phase.  The cylindrical or frusto-conical members may be secured to the casing and rotated therewith while the shaft O and agitators G are held stationary; the centrifugal action set up assists separation of the phases in the quiescent zones and allows shorter cylinders to be used.  The Specification as open to inspection under Sect. 91 comprises also an apparatus in which the series of alternate quiescent and turbulent zones are arranged as columns inclined in opposite directions and connected together in series.  This subject-matter does not appear in the Specification as accepted.
Patent GB-856818-A (GB)
Title: Process for preparing copolymers of vinyl chloride
IPC: C08F214/06
Filed: 1957-05-09
Abstract: Copolymers of vinyl chloride with (a) a vinyl ester, vinylidene chloride, acrylonitrile, an acrylic ester or a methacrylic ester and (b) vinyl phosphonic acid, vinyl phosphonic acid dichloride or a derivative thereof of formula; <FORM:0856818/IV(a)/1> where R is a C1-4 alkyl group or b  hydroxyethyl group and X is a halogen atom or hydroxyl group, may be prepared by polymerizing the monomers in a solvent or aqueous medium. Polymerization may be effected in the presence of catalysts, e.g. benzoyl, lauroyl, caproyl, caprylyl, tertiary butyl and hydrogen peroxides, tertiary butyl perbenzoate, potassium persulphate, potassium chlorate and azodiisobutyronitrile, redox systems, e.g. hydrogen peroxide with formaldehyde sulphoxylates or ferrous sulphate and alkali metal persulphates with bisulphites, or ultra violet light.  In aqueous media emulsifiers, e.g. paraffin, arylalkyl and fatty alcohol sulphonates or betaine dodecyl ester hydrochloride, may be present.  In aqueous processes it is preferred to introduce vinyl phosphonic acid with the aqueous components and the chlorides or derivatives thereof in admixture with the other monomers.  Examples describe the copolymerization of vinyl chloride and vinyl acetate with (1) vinyl phosphonic acid and (2) vinyl phosphonic acid dichloride.  Specification 843,700 is referred to.
Patent GB-1376207-A (GB)
Title: Method and apparatus for sealing containers
IPC: B29C65/56
Filed: 1972-03-29
Abstract: 1376207 Sealing containers H W PFEIFFER [trading as OHLER EISENWERK THEOB PFEIFFER] 29 March 1972 [2 April 1971] 14890/72 Heading B8C An aluminium foil container 1 is closed by folding an outer region of a flange surrounding the container over on to the edge of a thermoplastics material lid 3 which is supported on the inner region of the flange, and then pressing a peripheral V-shaped bead in the overlapping layers of flange and lid. During the pressing out of the bead, heat is applied to plastify the edge of the lid. An apparatus for so closing the container comprises a first vertically reciprocating device (6, Fig. 2) for folding the flange on to the lid 3 and a second device, Fig. 1, for pressing out the bead and heating the lid. The second device comprises a vertically reciprocable pressure frame 12 having a shaped pressure bar 13, and a fixed, electrically heated matrix frame 14 containing a vertically reciprocable platform 15. When containers and lids are supplied to and discharged from the second device, the components are in the relative positions shown on the left-hand side of Fig. 1, and when forming the bead and heating the lid the components assume the positions shown on the right-hand side of Fig. 1. In a preferred embodiment the first and second devices are combined ina multiple tool.
Patent GB-164008-A (GB)
Title: Worm gear
IPC: F16H1/16
Filed: 1921-05-30
Abstract: 164,008. Alten, Victor, Graf von. June 1, 1920, [Convention date]. Toothed wheels.-A worm-wheel is in the form of a disc R with balls K protruding from one face thereof adapted to engage helical recesses of semicircular section embodied in the construction of a cylindrical worm S. The balls are adapted to slide radially in grooves G so that several of them at once may be in gear engagement with the worm. When clear of the worm, the balls are held in place by a gapped circular race L.
Patent GB-144295-A (GB)
Title: Improvements in means for cooling electrodes for use in vacuum electric discharge apparatus
IPC: H01J13/18
Filed: 1920-06-02
Abstract: 144,295. Siemens - Schuckertwerke. June 4, 1918, [Convention date]. Low-pressure metallicvapour apparatus. - A hollow electrode 1 is cooled by circulation of a liquidsuch as water or oil, and is partly filled with a material such as lead 8, which is solid at ordinary temperatures, but melts during working. A joint is formed of rubber rings 3, 5, an insulator 4, and a flange 2 on the electrode.
Patent GB-771347-A (GB)
Title: Vat dyestuffs of the anthraquinone series
IPC: C09B1/467
Filed: 1955-05-25
Abstract: 2.4 - Dihydroxyquinazoline - 6 - sulphodimethylamide or sulphomethylanilide is obtained from 2.4-dihydroxyquinazoline by treatment with chlorsulphonic acid and reaction of the sulphochloride so obtained with dimethylamine or methylaniline.  2.4 - Dichlorquinazoline - 6 - sulphodimethylamide or sulphomethylanilide are obtained from the 2.4-dihydroxy bodies by reaction with phosphorus pentachloride and oxychloride. 2.4-Dihydroxy - 6 - chlorquinazoline - 8 - sulphodimethylamide is obtained from 2.4-dihydroxy-6-chlorquinazoline by treatment with chlorsulphonic acid, and reaction of the sulphochloride with dimethylamine.  It may be reacted with phosphorus penta- and oxychlorides to give 2,4,6-trichlorquinazoline-8-sulphodimethylamide.  2,4-Dihydroxy - 7 - trifluoromethylquinazoline is obtained by fusion of urea with 2 - amino - 4 - trifluoromethyl benzoic acid.  It may be converted to 2,4 - dichlor - 7 - trifluoromethylquinazoline by reaction with phosphorus penta- and oxy-chlorides.ALSO:Vat dyes are made by heating 2 mols of identical or different water-insoluble amines of the anthraquinone series with 1 mol. of a 2, 4 - dihalogenquinazoline containing a sulphonamide group or a trifluoromethyl group and, if desired, one or more further halogen atoms.  Inert solvents, e.g., nitrobenzene, di - or tri - chlorbenzene, and acid - binding agents such as sodium acetate potassium carbonate, or pyridine, may be used. The products dye natural or regenerated cellulose and nylon.  In examples, (1) 2, 4 - dichlorquinazoline - 6 - sulphodimethylamide is reacted with (a) 1 - amino - 4 or 5 - benzoylaminoanthraquinone, (b) 2 - aminoanthraquinone, (c) 1 - amino - 4 - methoxy - anthraquinone, (d) 1, 4 - diamino - 2 acetylanthraquinone; (2) 2, 4 - dichlorquinazoline - 6 - sulphomethylanilide is reacted with (a) 1 - amino - 4 or 5 - benzoylamino - anthraquinone (b) 1 - or 2 - aminoanthraquinone, (c) 1 - amino - 5 - chlor - or 4 - methoxy anthraquinone; (3) 2, 4, 6 - trichlorquinazoline - 8 - sulphodimethylamide is reacted with (a) 1 - amino - 4 or 5 - benzoylamino - anthraquinone, (b) 1 - amino - 4 - methoxyanthraquinone, (c) 1 or 2 - aminoanthraquinone; (4) 2, 4 - dichlor - 7 - trifluoromethyl - quinazoline is reacted with (a) 1 or 2 - aminoanthraquinone, (b) 1 - amino 4 or 5 - benzoylamino - anthraquinone, (c) 1 - amino - 5 or 6-chloranthraquinone, (d) 1 - amino - 4 - methoxy - anthraquinone, (e) 3 - trifluoromethyl - 7 - amino - 5, 6 - phthaloylacridone, (f) 1.4 - diamino - 2 - acetyl - anthraquinone; (5) 2, 4 - dichlorquinazoline - 6 - sulphomethylanilide is reacted with 1 mol. each of 1 - aminoanthraquinone and 1 - amino - 4 or 5 - benzoylaminoanthraquinone successively, and (6) 2, 4 - dichlor - 7 - trifluoromethyl - quinazoline is similarly reacted with 1 - aminoanthraquinone and 1, 4 - diamino - 2 - acetyl - anthraquinone or 2, 4 - dichlor - 7 - amino 1 5, 6 - phthaloyl-acridone.