baber/WOPTO huggingface dataset:
Patent GB-1112901-A (GB)
Title: Apparatus for automatically assembling a stack of venetian blind slats on ladders and providing them with lift cords
IPC: E06B9/266
Filed: 1965-07-13
Abstract: 1,112,901. Assembling venetian blinds. HUNTER DOUGLAS INTERNATIONAL Ltd. 13 July, 1965 [15 July, 1964], No. 29721/65. Heading E1J. Apparatus for assembling slats on ladder tapes and providing lift cords therethrough includes a table 11 where the slats are cut from a long length and have cord holes punched out, and the main portion where the assembly takes place, comprising columns 12, 14, 17 and 18 carrying lift cord threading needles 52 and means 46 for moving the ladder tapes to and fro so that successive cross tapes are on alternate sides of the lift cords. The fabricated slat is moved from table 11 on to supports 59 attached to columns 17 and 18 by a conveyor belt (not shown) via a microswitch 61 (Fig. 12, not shown) which operates a shaft 38 (Fig. 11, not shown) carrying pulleys 37 over which tapes 35 pass, which tapes support runners 33 carrying the ladder tapes 43, so that as each slat passes the switch, the ladder tapes are raised one step: the switch also operates the reciprocating shaft 50 attached to the means 46 which grips the ladder tape 43 and moves it to and fro.
Patent GB-1046906-A (GB)
Title: Process for preparing interfering virus
IPC: A61K41/00
Filed: 1963-07-26
Abstract: A continuous process for the preparation of interfering virus (defined) is characterized by passing an aqueous suspension of infective virus through a helical quartz tubing axially containing a source of ultraviolet light, the passage being made at such rate that each square centimeter of suspension is subjected to at least 5000 and not more than 20,000, and especially 9000 to 11,000, ergs of ultraviolet irradiation e.g. of wave length about 2537  . Specified viruses are Newcastle Disease virus, mumps virus, pneumonia virus of mice, eastern equine encephalomyelitis virus, Saint Louis encephalomyelitis virus, Japanese B encephalomyelitis virus, yellow fever virus, dengue virus, West Nile virus, poliomyelitis virus, Coxsackie virus, Theile GD VII virus, encephalomyocarditus virus, lymphocytic thorimeningitidis virus, vesicular stomatitis virus, fowl pox virus, vaccinia virus, psittacosis lymphogranulama venereum virus and popilloma virus.
Patent GB-418867-A (GB)
Title: Improvements in or relating to electron discharge tubes or electric incandescent lamps
IPC: H01J5/32
Filed: 1933-10-26
Abstract: 418,867. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Oct. 26, 1933, No. 29765. Convention date, Feb. 4. [Class 39 (i).] Electron discharge tubes or electric incandescent lamps are provided with a cap or plate of vacuum-tight ceramic material, other than a ceramically shaped and densely burned mass of magnesium silicate, which forms part of the wall of the tube or lamp and in which the supporting and leading-in wires for the electrodes or filament are mounted, the usual stem being dispensed with. The porcelain known under the Registered Trade Mark " Calit " may be used as the vacuum - tight ceramic material. In the example, contact pins 2 with their ends inserted within the ceramic cap 1 are connected to the leading-in conductors 3, which may serve also as electrode-supportingwires. The cap is provided with strengthening ribs or shoulders 4 which may be disposed at right-angles to each other. Alternatively, the ribs may be of other shapes, for example, circular, as shown dotted in Fig. 2. The upper edge of the cap may be provided with a groove 8 which may receive a layer of molten glass into which the glass bulb 7 is sealed. Instead of making the cap entirely of the ceramic material a plate-shaped ceramic portion may be mechanically united with a layer of other material carrying the external contact members. The bulb may be made of the same ceramic material as the cap.
Patent GB-895153-A (GB)
Title: Process for the production of vinyl polymers
IPC: C08F2/22
Filed: 1958-09-17
Abstract: A process for producing vinyl polymers comprises polymerizing finely dispersed vinyl chloride, vinyl acetate, acrylonitrile or mixtures thereof, optionally with a minor proportion of maleic anhydride, a maleic ester, vinyl pyridine, an acrylic ester or a methacrylic ester, at +20 to -50 DEG C. in an acid medium in the presence of trichloroethylene or an alkyl mercaptan as polymerization modifier, and, when the polymerization is carried out below about 5 DEG  C., in an antifreeze medium comprising water and an alcohol, the polymerization being initiated by a catalyst comprising (a) hydrogen peroxide, an organic hydroperoxide, a persulphate or an organic peracid, (b) d-ascorbic acid, l-ascorbic acid or dihydroxy-maleic acid, and (c) a soluble salt of iron, chromium, cobalt, molybdenum, copper, tin, vanadium, silver or cerium.  The medium may comprise methanol, ethanol, isopropanol, n-propanol, ethylene glycol or glycerol, Emulsifiers and suspending agents, e.g. sodium dodecylbenzene sulphonate, vinyl acetatemaleic anhydride copolymers, polyvinyl alcohol and cellulose derivatives, may be present. Specified catalyst components include (a) potassium persulphate and cumene hydroperoxide and (c) ferrous sulphate, ferrous ammonium sulphate, ferrous glyconate, ferric gluconate, cupric sulphate, cerous nitrate and ceric nitrate.  The copolymerization of vinyl chloride with acrylonitrile, maleic anhydride, methyl acrylate and 4-vinyl pyridine sulphate (Example VII) and the saponification of a polyvinyl acetate to polyvinyl alcohol in the presence of methanol and sulphuric acid (Example III) are described.
Patent GB-993506-A (GB)
Title: Improvements in radiation detection device circuits for use in flame sensing
IPC: F23N5/08
Filed: 1963-07-26
Abstract: 993, 506. Sensing conditions photo-electrically. ELECTRONICS CORPORATION OF AMERICA. July 26, 1963 [Aug. 10, 1962], No. 29809/63. Heading G1A. Photo-electric condition sensing apparatus comprises a sensor having a pair of spaced electrodes connected to the secondary of a voltage step-up transformer, the primary thereof being connected to A.C. supply means and means responsive to changes in current flow in the primary consequent upon sensing of the condition. The sensor 10 comprises tungsten electrodes in a hydroden atmosphere. Ultra-violet photons falling on either electrode produce photoelectrons which under the influence of a 700 volt alternating field cause an avalanche breakdown. A sudden decrease in impedance is reflected through the transformer 38 to discharge the condenser 44 to produce pulses at every half cycle of the current source 40. These pulses are picked up across resistors 48 and 49 by a circuit including a filter 60, 62, 64 which is insensitive to the low frequency magnetizing current in the primary 42. The pulses are fed via a monostable multivibrator 54 to an integrator circuit 56, the integrated signal operating a relay 58 to indicate the presence of a flame. A plurality of sensors may be coupled with a single current source and signal processing channel, Fig. 4, (not shown).
Patent GB-810968-A (GB)
Title: Improvements in or relating to methods and apparatus for the purification of water in aquaria
IPC: A01K63/04
Filed: 1956-10-02
Abstract: 810,968. Air lift-pumps. HOREMAN, T. J. Sept. 12, 1957 [Oct. 12, 1956], No. 29976/56. Class 102(2). [Also in Group I] Apparatus for the purification of water in aquaria comprises a hollow perforated member comprising a framework of a plurality of perforated tubular limbs communicating with one another to form a closed circuit, a connecting tube communicating with the member for conveying water from the member to a position at least as high as the water level in the aquarium, and means connected to said tube for causing water to flow from the aquarium through the member and tube back to the aquarium. The member, which may be made of synthetic plastic such as polyvinyl chloride, is preferably buried in, and extends over the whole of, the gravel bed of the aquarium. In the example tubes 10, 11, 12, 13, 14 perforated by holes 18 about 1¢ inches apart are connected by elbow pieces 16 and T-junctions 17 to form the framework shown in Fig. 1. A vertical tube 20 is fitted over a hole in tube 14 by T-junction 21 and air is pumped into tube 20 through pipe 22, which has a diameter about one quarter of that of tube 20 and which is connected as shown in Fig. 2. The framework is buried in the gravel on the bottom of an aquarium with the vertical tube 20 projecting above the water level. The air introduced through pipe 22 rises in tube 20 drawing in water through the perforation which is lifted and aerated by the air bubbles and discharged onto the surface of the aquarium through tube 25.
Patent GB-337163-A (GB)
Title: Improvements in or relating to launching torpedces from a flying machine
IPC: B64D1/04
Filed: 1929-10-03
Abstract: 337,163. Bull, J. A. Oct. 3, 1929. Dropping bombs and other articles from a height; launching torpedoes.-A torpedo T launched from an aircraft A, for example by the release of a hook O, is given a movement of rotation transverse to its axis by a brake or delay release device at its tail, so that the torpedo may strike water with its axis substantially in the direction of its flight, thereby avoiding ricochet and undue strain. The brake may be a spring F, Fig. 1, attached to a bolt G secured to the torpedo by a pin P. An adjustable stop R limits the movement of the bolt G and the extension of the spring, and this causes the pin P to snap and release the tail of the torpedo a short time after the release of the hook O. In a modification, Fig. 2, the tail is held by a hook H which is released by the pull of a linkwork or of a line S operated by the nose of the torpedo when the torpedo drops from the hook 0; the line S passes over a pulley D on the aircraft, and its length determines the moment of release of the hook H.
Patent GB-280716-A (GB)
Title: Improvements in or relating to platen adjusting mechanism for typewriting, adding or similar machines
IPC: B41J11/24
Filed: 1926-11-27
Abstract: 280,716. Barr, J. H., and Barr-Morse Corporation. Nov. 27, 1926. Platen-roller couplings.-A coupling for the line-spacing wheel and platen roller is controlled by moving longitudinally the platen shaft, the coupling preferably being arranged to permit release by moving the shaft to the left so that the carriage, being held by the escapement, is not disturbed; the coupling may comprise spring- urged levers adapted to draw the line-space wheel into engagement with the platen roller, provision being made for adjustment to take up wear. In the coupling shown in the Figure, the platen shaft 1 passes through bearings. 2, 3, a hub 10 on the head 6, and a sleeve 16 freely mounted in the head 7, a pin 12 on the shaft, entering a slot 11 in the hub. The line-spacing wheel 20, arranged at the left of the platen, is threaded on the sleeve and is secured in adjusted position by a nut 21, an annular V-groove 23 in the line-spacing wheel engaging a similar ridge 24 on the head 7. The line-spacing wheel is drawn into coupling engagement with the head by means of levers 26 pivoted on the head and having lugs 28 engaging a flange 18 on the sleeve 16, a spring 32 being arranged between the sleeve and a cam 31 engaging the levers. The cam may be secured to the shaft 1 or may abut loosely on a pin 33 thereon. On pushing inwards the platen knob 34, the cam relieves the levers, and the sleeve moves outward thereby releasing the line-spacing wheel and permitting the platen to be turned independently. On releasing the platen knob, the line-spacing wheel is again coupled to the platen roller.
Patent GB-465134-A (GB)
Title: A new or improved process for uniting cellulose acetate and gelatine layers
IPC: C09J133/02
Filed: 1935-11-01
Abstract: Gelatine and cellulose acetate are united together by using polymerized acrylic acid as the adhesive.  Thus, in producing compound glass with a cellulose acetate interlayer, gelatine-coated glass plates are sprayed with a solution of polymerized acrylic acid, dried, and assembled with the cellulose acetate interlayer. Photographic films may also be made by spraying a cellulose acetate film with a solution of polymerized acrylic acid, drying, and coating with photographic gelatine emulsion.  A layer of partly hydrolyzed cellulose acetate may be provided between the cellulose acetate and the polymerized acrylic acid by applying a solution of partly hydrolyzed cellulose acetate in aqueous acetone or an aqueous wood distillation product with, if desired, a high-boiling solvent such as ethyl lactate or diacetone alcohol, or by treating the cellulose acetate film with, for example, hot dilute hydrochloric acid.  A solution of polyacrylic acid may be added to the hydro cellulose acetate solution.  The wood distillation product is a constant boiling mixture of acetone, methyl acetate, and methyl alcohol.  The adhesive may be prepared by heating acrylic acid with water, acetone, and, if desired, benzoyl peroxide, and may be diluted for spraying with glycol mono-ethyl ether, or amyl alcohol alone or together with glycol mono-ethyl ether, acetone, methyl ethyl ketone, or the wood distillation product.  The compound glass constituent sheets may be assembled in a bath of cyclohexanol containing a plasticizer, e.g. dimethyl phthalate, or in a bath of dimethyl phthalate which may be heated, and united in a press or an autoclave.  The cellulose acetate interlayer may be plasticized, e.g. with dimethyl and/or diethyl phthalate. Specification 328,919, [Class 140], is referred to. Reference has been directed by the Comptroller to Specification 450,455.
Patent GB-1430390-A (GB)
Title: Detection of breaks in flexible elongate members liquid crystal display devices
IPC: G01B7/34
Filed: 1972-06-28
Abstract: 1430390 Detecting breaks electrically BICC Ltd 27 June 1973 [28 June 1972] 30284/72 Heading G1N Apparatus for detecting breaks in a flexible elongate member (for example an insulated telephone cable) includes at least one electrode 1 arranged to generate or discharge an electrostatic charge on the member and of such a form that the member can be caused to travel in the direction of its length past and in continous contact with the or each electrode, a resistor 4 connected in series between the electrode or electrodes and earth and an amplifier 6 and detector 7 continuously monitoring the current flow between the electrode or electrodes whereby cessation of the current flow indicates a break in the member. It is stated that streams of particles are included in the generic expression "flexible elongate member", as are tapes or webs. Figs. 4-7 (not shown) illustrate a form of apparatus for use in the manufacture of multiconductor cable where the output voltage represents the number of unbroken conductor pairs and actuates an alarm if it lies without predetermined valves.
Patent GB-696801-A (GB)
Title: Thermionic vacuum tube amplifier
IPC: H03F1/16
Filed: 1951-12-28
Abstract: 696,801. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. Dec. 28, 1951 [Jan. 23, 1951], No. 30303/51. Class 40 (vi). In an ultra-high frequency amplifier of the type described in Specification 538,206 in which the input is applied to one electrode of a valve, the output is taken from a second electrode and a neutralizing impedance is connected to a third electrode, a circuit having a negligible impedance at the operating frequency is connected between the third electrode and the first or second. The grounded grid valve 1, Fig. 1 is arranged with a neutralizing inductor Lg in the cathode lead and a series resonant circuit comprising the inductor L1 and capacitor C4 between cathode and grid. The capacitor C4 is chosen to have a capacity equal to the grid-cathode capacity C1. The input 27 is applied to a resonant cavity turned by plunger 25, Fig. 2, the project. ion 22 being terminated in a part 24 which grips the cathode 11. The grid 10 is held by spring fingers 30 in a cylinder 29 mounted on an apertured disc 31 forming the inductor Lg. The cathode lead is the inductor Ll and the capacitor C4 is formed by the cylinder 32 encircling the part 24. The output cavity is tuned by spring plunger 18 and the output is taken over lead 20.
Patent GB-1430214-A (GB)
Title: Measurement of corrosion
IPC: G01N27/416
Filed: 1973-07-10
Abstract: 1430214 Measuring corrosion COMPAGNIE GENERALE D'ELECTRICITE 10 July 1973 30424/73 Heading G1N Corrosion of a metal test piece by an aqueous solution is determined by immersing an electrode in the solution to form an electro-chemical cell with the test piece; measuring the e.m.f. E of the cell, the short circuit current ice supplied and the electrolyte resistance Re 1 between the test piece and electrode; deducing the electrode polarization resistance R pol from R pol = (E/i cc )-Rel; and determining the maximum value of the intensity of the current supplied from i max = Eo/R pol which current represents the rate of corrosion of the metal test piece by the electrolyte. The current, voltage and resistance are measured using a milliameter, voltmeter and Wheatstone bridge. Probe constructions; one suitable for measuring the corrosion of a metal wall comprises a casing having disposed therein a metal planar electrode to one surface of which air or oxygen is supplied and the opposite surface of which is arranged in spaced parallel relationship with the wall. In another arrangement a corrosion cell for immersing in a flow of liquid includes a housing having the electrode mounted in spaced parallel relationship with a piece of metal to be tested. Interchangeable wedges are provided for varying the distance between the electrode and test object. The cell may form part of a liquid conduit in which case the electrode is cylindrical and the test piece is positioned along the axis of the tube. The electrode may be Ag/AgO or Hg/Hg Cl.
Patent GB-1005243-A (GB)
Title: Improved tear resistant fabric
Inventor: LORD WILFRID
IPC: D03D11/00
Filed: 1961-08-24
Abstract: A tear resistant textile sheet material comprises a woven fabric in which the weft thread density differs by not more than 15% from the warp thread density, the fabric having at least two superposed layers woven from threads having a twist not exceeding 3 t.p.i., and interconnected by weaving warp threads of one layer with weft threads of an adjacent layer.  The fabric may have a weight of not more than 15 oz. per square yard.  The threads may be of continuous filament manmade fibre or spun staple fibre e.g. one ply of cotton, rayon or nylon, and the second ply of continuous filament polyethylene terephthalate or polypropylene yarn.  The fabric is coated with a composition comprising natural or synthetic rubber or polyvinyl chloride.ALSO:A tear-resistant textile sheet material comprises a composite fabric in which the weft thread density is substantially equal to the warp thread density, coated on both surfaces with a plastic composition, the fabric having at least two interconnected superposed plies of fabric woven from threads having a low twist, the plies being interconnected by weaving warp threads of one layer with weft threads of an adjacent layer.  "Low twist" is defined as being not more than 3 turns per inch.  The weft thread density may differ from the warp thread density by an amount of from 0-15%.  The composite fabric may have a weight of not more than 15 oz. per square yard.  The composite fabric may have an inner region substantially unpenetrated by the coating composition.  The back warp threads of one ply of the fabric may be interwoven with the face weft threads of the other ply.  The threads may be of continuous filament man-made fibre or spun staple fibre, e.g. one ply of cotton, rayon or nylon, and the second ply of continuous filament polyethylene glycol terephthalate or polypropylene yarn.  The plastic composition may comprise natural or synthetic rubber or polyvinyl chloride.  The coating may be effected by spreading, calendering or spraying.
Patent GB-745529-A (GB)
Title: Artificial horizon
IPC: G01C15/14
Filed: 1952-12-02
Abstract: 745,529. Artificial horizons; levelling. KOLLSMAN INSTRUMENT CORPORATION. Dec. 2, 1952 [July 28, 1952], No. 30528/52. Class 97 (2). An artificial horizontal reference is provided by the image of a slit 116, illuminated by a source 117, which image is formed by a lens 119 and reflected from the surface 121 of a body of mercury 120, which has a layer of viscous silicone 102 over its surface to dampen any surface vibrations. An optical sighting system may be provided for use in levelling an external object or in a sextant. The sighting system comprises an objective 111 which forms an image of a distant object in the focal plane A-B, and an eyepiece 113, a transparent reflecting glass 112 being provided to reflect the image of the aperture 116 into the focal plane A-B. The image of the slit 116 may be first arranged horizontal by sighting the horizon and adjusting the slit until its image coincides with that of the horizon. Specifications 15079/14, [Class 97 (ii)], and 745,528 are referred to.
Patent GB-602988-A (GB)
Title: Improvements in vehicle bodies
IPC: B60P3/34
Filed: 1945-11-15
Abstract: 602,988. Extensible bodies. BUTEMENT, J. C. I. Nov. 15, 1945, No. 30541. [Class 108 (i)] [Also in Group X] An opening in the side or end of a vehicle body is closed by a folding structure comprising an upper prismatic member 10 having a partcylindrical surface 20 and end surfaces, and hinged about a line 12 to the frame of the opening, and a lower prismatic member 24 having plane surfaces 23 and end surfaces and hinged about a line 25 to the frame of the opening. The members 10, 24 are constrainted by links 28 to move together either counter clockwise from the position shown to form an extension of the vehicle or clockwise to lie within the body, in which position the opening in the vehicle is closed by one surface 23 and by a flap 16 secured to links 29. Further links similar to 28 may be provided within the vehicle body, and a channel member 21 on the upper member 10 limits the extent of outward movement. The vehicle body structure is reinforced around the opening by vertical lattice frame 37 which may include part of one of the cross-bars 38 of the chassis. For moving the upper member between its two extreme positions parts of its surface 20 may'be formed with racks (e.g. lengths of sprocket chain) engaging a pair of pinions or sprocket wheels on a horizontal shaft above the member 10. The structure may be spring loaded to facilitate its movement. The surfaces of the structure may be covered in part by transparent material to serve as a window, and by removing the links 28 and moving the upper member 10 relatively to the lower member 24 the structure may be used to secure ventilation (see Group X).
Patent GB-975375-A (GB)
Title: Process for the dyeing of polyamide fibres and dye liquors for use therein
IPC: D06P3/06
Filed: 1962-08-10
Abstract: The invention comprises a dyeing liquor for polyamide fibres containing an acid wool dyestuff, a C8-14 fatty acid/di- or tri-alkonolamine (1-3 equivalents) condensate, at least one compound having a swelling action or polyamide and possibly soluble alginates and/or a non-forming anion active dispersing agent which is an aromatic sulphonic acid or water soluble salt thereof.  The polyamide is impregnated with the liquor at below the drawing temperature of said dyestuff, optionally dried and finished by steaming and/or passing through a hot acid bath. Instead of alginates, methyl cellulose or carboxymethyl cellulose may be used as thickeners The compound having a swelling action is preferably a water soluble mercaptan, hydroxyl compound, amide, thioamide or anidine; a list of suitable compounds is given.  The examples describe dyeing with the liquor of the invention of woollen worsted yarn, wool flannel, silk serge and canvases of nylon and poly-e -caprolactam.  U.S.A. Specification 2,089,212 is referred to.