baber/WOPTO huggingface dataset:
Patent GB-810836-A (GB)
Title: Improvements in and relating to valves
IPC: F16K15/06
Filed: 1955-11-24
Abstract: 810,836. Fluid-actuated valves. SOC. D'APPLICATIONS DES MACHINES MATRICES, and ROHACS, E. Nov. 24, 1955 [Dec. 6, 1954], No. 33744/55. Class 135. A. valve structure, e.g. for shock absorbers, comprises a casing with an inlet, outlet and a seat, closing means urging a closure member towards the seat, a chamber of which the closure member forms a wall, a first separate passage by-passing the chamber for the valvecontrolled fluid flow, a second separate passage providing restricted communication between the outlet and the chamber and a third passage providing communication between the inlet and the chamber, in the valve opening position, whereby a chamber pressure assisting the closing means is set up with delay so that little chamber pressure is available for small rapid opening valve movements but large chamber pressures are available to counteract large opening movements. As the piston 2, 3 is forced downwards, the valve 5 is held closed and the fluid in cylinder space A forces open valve 4 to flow into cylinder space B. Immediately the valve is unseated, fluid enters a space within the valve containing the spring 9 and loose-fitting guide 8, via a calibrated orifice 14, thus setting up a pressure acting in a valve closing direction. For small amplitude, high frequency vibrations, the opening of the valve offers reduced damping by the shock absorber. For large amplitude vibrations, the fluid in the space exerts a large counter-pressure which, with the force of the spring, becomes an increasing function of the opening movement of the valve. In alternative embodiments the orifice opens through the valve directly into the cylinder A or B and may have a cleaning pin passing therethrough supported by the guide 8, the mushroom valve may be guided on the pin 10, the valve stem may enter a cylinder on the guide 8 and the valve may be a ball moving with clearance in a cylinder or a hinged or flexible flap moving into a hood.
Patent GB-411105-A (GB)
Title: Improvements in or relating to electric resistance furnaces
IPC: H05B3/66
Filed: 1932-11-29
Abstract: 411,105. Electric resistance furnaces. CARBORUNDUM CO., Ltd., Trafford Park Road, Trafford Park, Manchester.-(Globar Corporation; Niagara Falls, New York, U.S.A.) Nov. 29, 1932, No. 33816. [Class 39 (iii).] The ends of two or more silicon carbide resistors 1 are electrically interconnected by a contact member 5 composed principally of silicon carbide and arranged within the furnace. Current is supplied by means of spring urged silicon carbide contact pieces 2 provided with a sprayed metallic coating 11. The silicon carbide employed is preferably impregnated or intermingled with silicon or a silicon alloy. A muffle of silicon carbide or fused alumina may be arranged in the furnace. Specifications 338,131, [Class 39 (iii)], and 396,088, [Group XXXVI], are referred to.
Patent GB-1151954-A (GB)
Title: Method and Apparatus for Manufacturing Glass
Inventor: IHRIG ALLEN CLAUDE
IPC: C03B17/06
Filed: 1967-07-24
Abstract: 1,151,954. Delivering glass sheet in continuous form. CORNING GLASS WORKS. 24 July, 1967, No. 33929/67. Heading C1M. In the delivery of a continuous, flat sheet of glass from a chamber 14 of molten glass down an inclined delivery channel 24, the glass sheet is constricted at its edges and permitted to return to its original width by side blocks extending from side portions 20, 22 of the channel 24, the side blocks having converging glass deflecting surfaces 26, 28 extending into the path of the glass to constrict the glass sheet and diverging surfaces 30, 32 downstream of the surfaces 26, 28, whereby the thickness of the glass sheet is rendered more nearly uniform.
Patent GB-466890-A (GB)
Title: Process for the manufacture of ª‰-ketoacetals
IPC: C07C49/175
Filed: 1935-12-07
Abstract: b -Ketoacetals are made by treating b -halogen-vinylketones, obtainable for example by the process described in Specification 461,080, with alcohols in the presence of alkaline-reacting substances, e.g. alkali hydroxides or carbonates or tertiary amines. The alcohols may be primary, secondary or tertiary carbinols of the aliphatic, aromatic or hydroaromatic series.  The products are intermediates for the manufacture of dyes, pharmaceuticals, and auxiliary agents for the textile industries. In examples: (1) a mixture of b -chlor-vinyl-methylketone and methanol is stirred with a solution of sodium hydroxide in methanol at below 15 DEG  C.  After separating sodium chloride, the liquid is distilled to give dimethylacetal of acetyl-acetaldehyde; (2) diethylacetal of benzoyl-acetaldehyde is obtained from phenylchlorvinyl ketone, ethanol, and sodium carbonate; (3) dibutylacetal of acetylacetaldehyde from methylchlorvinyl ketone, butanol, and sodium hydroxide; (4) diethylacetal of b -ketoisoheptylaldehyde from isobutylchlorvinyl ketone, ethanol, and potassium hydroxide.
Patent GB-913895-A (GB)
Title: Improvements in or relating to cathodic protection systems
IPC: C23F13/04
Filed: 1959-10-07
Abstract: 913,895. Preventing and removing incrustation and corrosion. ENGELHARD INDUSTRIES Inc. Oct. 7, 1959 [Oct. 8, 1958], No. 34060/59. Class 123 (1). In a D.C. impressed cathodic system for protecting the hulls of small craft, e.g. cabin cruisers against corrosion the anode can be energized either from a battery 10 when the ship is under way or from a shore-based source of electrical power when the ship is anchored in dock. As shown in Fig. 2, when the primary of a transformer 34 is connected to a shorebased power supply a relay 40, connected across the fully rectified output of the transformer 34, is energized to disconnect the anode from the battery 10 and connect it to the positive terminal of the rectified output the negative terminal of which is connected to the hull of the ship. A push-button switch 20 can be operated to record either the current between the hull and a reference half-cell on, the voltage across a resistance 12 which is in series with a variable resistance 14 in the anode circuit. The resistance 14, which is preferably in the form of a set of fuse-type plugs, is adjusted in accordance with the readings obtained from the reference half cell. In a modification for charging the battery 10 when the ship is in dock the rectified output of the transformer 34, which has a sufficiently larger potential than that of the battery, can be connected to the battery 10 through a mechanically-operated switch, the contacts of a further relay connected across the rectified output, and a limiting resistance. Further modifications are described in which a resistance is switched in circuit in parallel with the variable resistance 14 to increase the current supplied to the anode whenever the ignition of the ship's motor is switched on or whenever the transformer 34 is disconnected from the electrical source on land. In yet another modification, a blocking diode combines the function of the relay 40, and the further relay referred to above.
Patent GB-779890-A (GB)
Title: Automatic adjustor for internal shoe-drum brakes
IPC: F16D51/48
Filed: 1955-05-12
Abstract: 779,890. Internal shoe-drum brakes. BENDIX AVIATION CORPORATION. May 12, 1955 [June 1, 1954], No. 34083/56. Divided out of 779,889. Drawings to Specification. Class 103 (1). The description and drawings are identical with that in Specification 779,889, but the claims differ. Specification 551,726 also is referred to.
Patent GB-1183948-A (GB)
Title: Air-Pressure Actuated Electric Switch
Inventor: HOPE HENRY
IPC: H01H35/40
Filed: 1967-07-25
Abstract: 1,183,948. Pneumatic actuation of switches. H. HOPE. 25 July, 1967, No. 34142/67. Heading H1N. A micro-switch 19 is normally closed by an arm 21 carrying a vane 22 which acts as a door closing the aperture 25 in a plenum chamber 12 which has additional apertures (15, Figs. 1 and 2, not shown) situated in the path of workpieces such as sheets of film (32) being fed to continuously-running rollers (28, 30). When these apertures (15) are obstructed by the passage of a workpiece the air pressure in chamber 12 increases and moves the vane 22 to the position shown, thereby opening switch 19 and deenergizing a feed supply motor M-1. In a modified embodiment (Figs. 4 to 8, not shown) the sensing apertures are not situated in the chamber 12 but at the ends of conduit connected thereto.
Patent GB-1392213-A (GB)
Title: Pigment containing bivalent lead and hexavalent chromium
IPC: C09C3/06
Filed: 1972-07-21
Abstract: 1392213 Lead chromate/silica pigments SOC DES MINES ET FONDERIES DE ZINC DE LA VIELLE MONTAGNE SA 21 July 1972 [18 Nov 1971] 34243/72 Heading C4A Pigments are made by treating silica particles with an excess of aqueous alkali, e.g. sodium hydroxide, to form a suspension of activated silica and forming mixed crystals of two different lead chromates directly upon the activated silica in an aqueous medium. Mixed crystals of lead silicochromate with lead hydroxychromate or with neutral lead chromate are deposited upon the silica by adding an aqueous suspension of neutral lead chromate or of lead hydroxychloride together with alkali metal chromate or dichromate. The deposition can be carried out in the presence or absence of alkali, in which case the suspension of activated silica is neutralized with hydrochloric acid before the deposition. Pigments made have the composition by weight 54% SiO 2 , 7À70 (or 7À80)% CrO 3  and 39 (or 38À2)% PbO after dryng and calcining at 600‹ C.
Patent GB-901797-A (GB)
Title: Improvements in or relating to electrolytic capacitors
IPC: H01G4/38
Filed: 1959-10-09
Abstract: 901,797. Multiple electrolytic capacitors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 9, 1959 [Oct. 14, 1958], No. 34292/59. Class 37. A multiple electrolytic capacitor comprises a roll of at least two individual cathode foils each forming the common cathode of one or more capacitor units and each being provided with an individual supply lead, which leads are spaced apart and connected to a metal container. Fig. 1 shows an unwound capacitor in which one unit C 1  comprises an aluminium cathode foil 1 and an etched anode foil 4 separated by a spacer 3, and three further units C 2 -C 4  comprising a common cathode foil 2 and separate anode foils 6, 7, 8. Leads 9, 10 are preferably connected to corresponding ends of foils 1, 4, lead 11 being connected to the middle of foil 2 and leads 12, 13, 14 being connected as shown to foils 6, 7, 8. The cathode foils preferably project beyond the longitudinal edges of the corresponding anode foils. The capacitor roll 21, Fig. 2, is housed in a metal casing 20 which is sealed by an insulating disc 22 clamped between flange 24 and spun-over edge 23. Leads 10, 12, 13, 14 are connected to tags 16 by rivets passing through disc 22, lead 11 is fixed to the casing by rivet 25 and lead 9 is connected to the casing by clamping it between edge 23 and disc 22. In another embodiment, Fig. 3 (not shown), both leads 9, 11 are clamped between edge 23 and disc 22 but at diametrically opposite points on the circumference of the disc.
Patent GB-1049078-A (GB)
Title: Process for improving properties of zirconium and zirconium alloys
IPC: C22C16/00
Filed: 1964-08-21
Abstract: 1,049,078. Altering physical properties. UNITED STATES ATOMIC ENERGY COMMISSION. Aug. 21, 1964 [Nov. 6, 1963], No. 34360/64. Headings B3A, B3M and B3U. A method of improving the properties of zirconium and its alloys comprises cooling the metal to a temperature about equal to that of liquid nitrogen and prestraining the metal at this temperature. The metal may be cooled by immersion in liquid nitrogen and then prestrained, or prestrained in the nitrogen, as by tensile straining. Prestaining may be by rolling after removal from the liquid nitrogen, the metal being re-cooled to about 77‹ K. between passes. In an example, specimens were taken transverse to the length of a rolled plate of zirconium and prestrained under tension in liquid nitrogen by 4 and 8À2% respectively. This produced an improvement in elongation of about 25%. In a further example a specimen was prepared from an ingot of zirconium alloy rolled at 1850‹ and 1800‹ F. in mutually perpendicular directions, followed by rolling at 1450‹ F. The slab was then annealed for 45 minutes at 1850‹ F. and water-spray quenched, after which it was rolled to 0À5 inch thickness at 100‹ F., annealed for 30 minutes at 1425‹ F. and air-cooled. The specimen was then prestrained, as before, by 4À2%. In another example, the specimens were prestrained by rolling, with a reduction of 0À005 inch per pass, the final prestraining ranging from 0À65-12%. As applied to zirconium or zirconium alloy pressure containers or cans for uranium oxide fuel, the ductility of tubing used for making the cans is improved by lowering the temperature of the metal to about 77‹ K. and prestraining the tubing by internal pressure.
Patent GB-808128-A (GB)
Title: A method of increasing the fatty contents of such micro-organisms as yeasts, bacteria and moulds
Inventor: CHALLINOR SYDNEY WILLIAM
IPC: C12N1/14
Filed: 1955-12-01
Abstract: Fats or fat-soluble lipids are obtained by a process in which bacteria, yeasts or moulds which require i-inositol for normal growth are cultured in a nutrient medium containing carbohydrate, such as glucose or sucrose, as the principal constituent, but containing less i-inositol than is required for the normal growth of the organism, whereafter fat is extracted from the organism, suitably by solvent extraction or by mechanical means.  Suitable organisms are the yeasts of the genus Saccharomyces, such as S. cerevisiae W.S., S. carlsbergensis Strain M, S. carlsbergensis 4228, and of the genus Kloeckera such as K. brevis.  The culture is best carried out under aerated conditions in a specified nutrient solution containing a nitrogen source, salts, trace elements, and growth factors in addition to the sugar, if desired in the complete absence of i-inositol.  Specifications 146,430 and 146,431, [both in Class 91], are referred to.ALSO:Fats or fat-soluble lipids are obtained by a process in which bacteria, yeasts, or moulds, which require i-inositol for normal growth, are cultured in a nutrient medium containing carbohydrate, such as glucose or sucrose, as the principal constituent, but containing less i-inositol than is required for the normal growth of the organism, whereafter fat is extracted from the organism, suitably by solvent extraction or by mechanical means. Suitable organisms are the yeasts of the genus Saccharomyces, such as S. cerevisiae W.S., S. carlsbergensis Strain M, S. carlsbergensis 4228, and of the genus Kloeckera such as K. brevis.  The culture is best carried out under aerated conditions in a specified nutrient solution containing a nitrogen source, salts, trace elements, and growth factors in addition to the sugar, if desired in the complete absence of i-inositol. Specifications 146,430, [Class 14 (2)], and 146,431, [Class 91], are referred to.
Patent GB-292061-A (GB)
Title: Improvements relating to hand irons for laundry purposes
IPC: D06F77/00
Filed: 1927-12-20
Abstract: 292,061. Jackson, H. Dec. 20, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 12, 1928]. Ironing-machines with hand-operated flat-irons. -The iron 14 is secured to a curved bracket 12, which is carried by a vertical pivot pin 11 in a sleeve 10 at the end of an arm 7. The arm 7 is secured by a vertical pivot pin 9 in the bifurcated end of an arm 1 which is secured to a rod 2 rotatably and slidably carried in a support 3. The iron is maintained raised normally by a spring 18 or weight, and is lowered to contact with a heated hollow work-support 15 by operation of a treadle 25. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 3 (Cancelled), in which the iron is freely suspended from a carriage 27 that runs along rails on an arm 29 which is secured to a rod 30 slidable and rotatable in guides 31, 32 in a column 33. The iron is held normally raised by a spring 34, and is lowered by a pedal. This subject-matter does not appear in the Specification as accepted.
Patent GB-1107621-A (GB)
Title: Measurement of the velocity of a running yarn
Inventor: STICKLER GORDON ALAN
IPC: G01P3/50
Filed: 1963-08-31
Abstract: 1,107,621. Electric tests on textile yarns. IMPERIAL CHEMICAL INDUSTRIES. Nov. 23, 1964 [Aug. 31, 1963], No. 34505/63. Heading G1N. To measure the velocity of a running textile yarn, electrostatic charges are deposited at a constant frequency on the yarn by a recording head 14 and the output of a pick-up head 15 is compared in a coincidence detector 39 with a signal corresponding in phase to that fed to the recording head. The recording head comprises a block (16), Fig. 2 (not shown), through which the yarn passes and a needle point electrode (20) mounted on and insulated from the block. The needle point electrode is connected to a high voltage D. C. source to cause a corona discharge between the point and the yarn. An oscillator 35 applies a sinusoidal or square wave voltage to block 16 to modulate the charge placed on the yarn. This modulating voltage is also fed through a three stage squaring circuit 38 to the coincidence detector 39 where its phase is compared with that of the signal picked up by the pick-up 15. The apparatus is calibrated using a yarn running with a known constant velocity. Two gauged four position switches 45, 46 enable the apparatus to be adjusted so that when the yarn is running at the known constant velocity the two signals received by the coincidence detector 39 are either 90‹ or 270‹ out of phase. Any change in velocity alters this relationship and may be indicated by a milliammeter 40 and recorded by a recorder 41. The frequency of the oscillator 35 is adjusted to restore the phase relationship, the charge in frequency being used as a measure of the charge in velocity. Guides 11, 12 reduce vibrations of the yarn Fig 1(not shown). The yarn may be a polyamide, polyester or polyolefin yarn. The ambient humidity must not be excessive. Two recording and pick-up arrangements may be positioned one before the feed rolls and one after draw rolls to monitor a textile drawing process. Several pick-up heads may be provided corresponding to different sensitivity ranges.
Patent GB-1134967-A (GB)
Title: Recovery of polyester scrap
Inventor: DIETZ HERBERT JOHN
IPC: C08J11/06
Filed: 1967-07-27
Abstract: 1,134,967. Recovering polyester from scrap photographic film. EASTMAN KODAK CO. July 27, 1967 [July 27, 1966], No.34548/67. Heading G2C. In the recovery of polyester scrap from waste photographic film, subbing layers comprising a copolymer of a vinylidene halide are removed from subbed polyester base material, e.g. polyethylene terphthalate material, by heating said material with alkaline glycol until the subbing layers have flaked off. The cleaned polyester scrap may then be removed by screening and the subbing layer flakes may be removed from the alkaline glycol by filtration or centrifugation. The subbing layers comprise copolymers of 30-98% of vinylidene halides with 0À5-40% of acrylonitrile or an alkyl ester of acrylic, methacrylic or itaconic acid and 1-25% of acrylic, methacrylic or itaconic acid. Various polyester base materials are specified. The alkaline glycol may be ethylene glycol and is preferably the glycol corresponding to the polyester base material used. The glycol may contain as alkali NaOH, KOH, alkali-metal oxides, hydroxides and carbonates in general, alkaline earth metal oxides and hydroxides, quaternary ammonium hydroxides, tri-alkali metal orthophosphates and pyridine.
Patent GB-346738-A (GB)
Abstract: 346,738. Floor coverings. JEURLING, S., 69A, N³rnbergerstrasse, Berlin.- (Assignee of Norman, R. and Boldemann, H. ; 69A, Niirnbergerstrasse, Berlin.) Oct. 12, 1929, No. 31031. Convention date, Oct. 15, 1928. Void [Published under Sect. 91 of the Acts.] [Classes 20 (iv) and 87 (i).] Wooden flooring such as parquet blocks or boarding is treated with a solution of cellulose esters or ethers, with which may be mixed camphor, camphor substitutes, plasticizers, oils, waxes, resins, resin esters, copals, or the like. The solution may be applied by spreading, brushing, or spraying. The floor is rendered non-slippery by this treatment.
Patent GB-470552-A (GB)
Title: Improved method of manufacturing electrode systems with unsymmetrical conductivity
IPC: H01L21/10
Filed: 1936-12-18
Abstract: 470,552. Light-sensitive cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 18, 1936, No. 34881. Convention date, Dec. 21, 1935. [Class 40 (iii)] [Also in Group XXXVI] A selenium electrode for a system with asymmetrical conductivity, e.g. a dry rectifier, is made by first subjecting commercial selenium to a purification process whereby any admixtures are rendered inactive or removed, then adding one or more substances to the selenium to increase its conductivity, and finally, after applying the selenium to a support, heating to convert the selenium to the conductive crystalline form. In one example, commercial selenium is purified by distillation, and 1 per cent bismuth iodide is added to the purified selenium in the molten condition. The product is then painted on an amalgamated brass support and heated to 200‹ C. for 24 hours or longer. An insulating coating preferably polystyrene, may then be added from a solution in benzene, followed.by the application of a drop of Wood's metal to form the counter-electrode. In another example, a current of air is passed through molten selenium whereby any admixtures present are rendered inactive, probably by oxidation ; calcium tungstate is then added and the selenium is applied to a support and heated. Reference has been directed by the Comptroller to Specification 317,010, [Class 37].
Patent GB-822550-A (GB)
Title: Improvements in or relating to television receiver circuit-arrangements
IPC: H04N11/12
Filed: 1955-12-06
Abstract: 822,550. Television. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 6, 1955 [Dec. 9, 1954], No. 35041/55. Class 40 (3). Interference in a chrominance sub-carrier fh (Fig. 1) due to side-band signals of a luminance signal o-fs (Fig. 1) within which the sub-carrier together with its side-bands lies and occurring when the sub-carrier amplitude is very low or zero (e.g. during period #t3, Fig. 2, when the sub-carrier is 100% modulated) and which, consequently, does not average out visually over successive frames as does interference occurring when the sub-carrier amplitude is appreciable (e.g. during period #t2, Fig. 2) is eliminated by supplying the subcarrier together with its side-bands (Fig. 2), via a cathode follower V (Fig. 5) and a circuit R1, L1, C1 (L1, C1 being resonant at sub-carrier frequency), to the cathode of a first rectifier D1, the anode of which is positively biased so that the signal shown in Fig. 7 is developed across it. This signal is then supplied to a second rectifier D2' the output of which, as shown in Fig. 8, contains no interference during period #t3.
Patent GB-1071198-A (GB)
Title: New isophthalic acid derivatives, and a process for their preparation
IPC: C07C69/90
Filed: 1964-08-26
Abstract: Novel isophthalic acid derivatives of formula <FORM:1071198/C2/1> wherein either both of the groups R1 and R2 are C1-C6 alkoxy radicals or one of them is the group -NR5R6 where R5 and R6 together wit the N-atom form a heterocyclic ring, R4 is an alkenyl radical which may be substituted by at least one alkyl group, and R3 is an alkanoyloxy group, are prepared by acylating the corresponding 4-hydroxy-isophthalic acid derivative.