baber/WOPTO huggingface dataset:
Patent GB-354890-A (GB)
Title: Improvements in electric switches with arc extinction by selfgenerated vapour-pressure
IPC: H01H33/75
Filed: 1930-05-27
Abstract: 354,890. High-tension switches. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 27, 1930, No. 16361. Convention date,' June 18, 1929. [Class 38 (v).] In A.C. switches the arc is extinguished by opening the circuit under a conducting or semiconducting liquid, such as water, in a vapour chamber which is kept closed until most of the liquid has been turned to vapour at a high pressure. The chamber is then suddenly opened to release the pressure, the consequent expansion of the vapour extinguishing the arc at the zero of the cycle. A vapour chamber 20 containing the fixed contact 27 has an upper insulating part and a lower part 21 of metal up to the level of the insulating liquid, which may be water or an electrolyte. When the switch is opened, the arc formed causes the liquid to vaporize, and as the movable contact 29 leaves the opening 30 in the chamber, a sudden expansion of the vapour occurs whereby the vapour condenses about the ions and deionizes the arc path. The vapour is condensed in a chamber 23 insulated from earth by a condenser-type insulator 25 and communicating with the chamber 20 through a non-return valve 33. In another form, Fig. 4 (not shown), a space is provided above the aperture 30 communicating by means of two pipes with an overhead condensing chamber from which the liquid can be returned to the vapour chamber. Two vapour-breaks in series may be arranged in parallel with a main air-break, the whole being pneumatically operated, Fig. 3 (not shown). The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use, as switch liquids, of oil, mercury, and carbonic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-940538-A (GB)
Title: Electrolytic manganese dioxide process
Inventor: WELSH JAY YOUNG
IPC: C25B1/21
Filed: 1962-04-30
Abstract: Manganese dioxide in form of coarse particles suitable for batteries, is made by electrolysis of a slurry of which the aqueous phase is manganese sulphate using a lead anode, the Mn O2 being formed from Mn3 ion produced and precipitated in the body of the agitated electrolyte (not on the anode), and the electrolysis being effected under the following conditions: temperatures 10 DEG  to 30 DEG C. and preferably <PICT:0940538/C3/1> not above 21  DEG C., H2SO4 added at the rate of 100 to 300 g. per litre and preferably 150 to 250 g., the Mn2 ion being present at a concentration of 10 to 30 g. per litre. The slurry is formed as an acid extract or leaching of a manganese ore.  Additional good grade African ore may be added to co-precipitate with the Mn O2 formed.  Mn3 ion is formed and maintained at .7 to 4 g. per litre, and decomposes slowly at an anode current density of 400 to 500 A.S.F. Graphs showing decomposition of Mn3 ion at selected temperatures, equilibrium concentrations of Mn2 and Mn3 ions with and without H2SO4 are given. A suitable apparatus consists of an open topped vessel 1 in which cathodes 2, 21 and an intervening anode 3 is supported and formed of U-shaped lead pipes. Cooling water passes through the cathode pipes to maintain the temperature at 15 DEG -17 DEG C. The slurry is fed in by a pump 11, and when treated flows out through a constant level overflow 12.  An agitator 5 is mounted adjacent the bottom of the vessel.  Reference is made to using the product as an oxidizing agent e.g. in the manufacture of hydroquinone, and recycling the Mn O2 slurry after such use through the cell.
Patent GB-1452718-A (GB)
Title: Bake technique for manufacturing polytetrafluoro-ethylene coated rollers
IPC: B05D7/24
Filed: 1975-04-21
Abstract: 1452718 Coated rollers XEROX CORP 21 April 1975 [26 April 1974] 16468/75 Heading B2E A method of manufacturing a polymercoated roller for use in a xerographic reproducing apparatus comprises applying a primer of a tetrafluoroethylene polymer to the surface of the roller, drying, heating the primercoated roller at below the fusion point of the polymer, applying to the coated roller a liquid coating comprising a tetrafluoroethylene polymer, drying, baking at below the fusion point the tetrafluoroethylene, applying at least one more additional liquid coating of the tetrafluoroethylene polymer, and drying and optionally baking as before and heating the coated roller at a temperature sufficient to cause fusion of the tetrafluoroethylene polymer coating. The surface of the roller should be clean and free of grease and methods such as solvent cleaning, grit blasting, chemical etching and wheel sanding are mentioned. The tetrafluoroethylene polymer may be polytetrafluoroethylene and the primer coat may be of thickness 0.2 mil to 0.7 mil. The primer film may be applied by air atomisation. Preferably the primer contains 30-50% water and other volatile materials. Drying may be by forced air at 70C to 80F. The drying is preferably under low humidity conditions, for example at 10-60% of relative humidity. The primer may be baked at between 400F and 550F. The heating to fuse the polymer coating may be at 720F to 800F.
Patent GB-1108083-A (GB)
Title: Measurement of power loss in electrical sheet steel and the like
Inventor: WILKINS FREDERICK JOHN
IPC: G01R33/12
Filed: 1964-04-21
Abstract: 1,108,083. Electromagnetic tests. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 20, 1965 [April 21, 1964], No. 16546/64. Heading G1N. An electromagnetic testing head for measuring the power-loss in electrical sheet steel comprises at least three identical C-shaped magnetic yokes preferably potted in resin, and having coplanar pole faces to engage the sheet and matching magnetising windings on each yoke, whereby the outer yokes act as guard yokes to minimize fringe effects, and a substantially uniform flux is produced over a precisely defined area by the inner yoke or yokes. A search coil on the inner yoke is connected to a measuring bridge Fig. 7, (not shown), or a thermal watt-meter circuit Fig. 8, (not shown), and the small known loss in the testing head is subtracted from the total measured.
Patent GB-950969-A (GB)
Title: Improvements in or relating to road barriers
IPC: E01F13/02
Filed: 1961-05-08
Abstract: 950,969. Road barriers; road traffic signs. B. GOWSHALL. Aug. 2, 1962 [May 8, 1961], No. 16627/61. Headings E1B and E1G. In a road barrier comprising horizontal bars 3 supported by sleeves 7 on pairs of support legs 5, the bars may be releasably held in various angular positions relative to the support legs. As shown the sleeve 7 at each end of the bars is provided with teeth 9 which adjustably engage a plate 6 welded between the legs of a support. In a modification the legs 5 and sleeves 7 are of polygonal section thus limiting the relative attitudes in which they can be interfitted. The bars 5 are of I-sectioned metal or of wood. Bolts 12 securing the sleeves to the bars may be located in slots thereby providing some angular adjustment between the sleeve and the bar. The barrier bars 3 are provided with hooks or clips 13 to detachably receive warning lamps or a warning sign 14.
Patent GB-201348-A (GB)
Title: Improved means for heating mattresses and the like
IPC: H05B3/34
Filed: 1922-06-16
Abstract: 201,348. Sykes, A. June 16, 1922. Mattresses.-In an electrically heated mattress of the kind in which the heating element comprises a resistance wire encased in a flexible fireproof covering, the heating element is mounted on a canvas or like backing which is embedded in the padding material of the mattress. The resistance wire A, enclosed in asbestos a, may be secured to the canvas backing B by tape a<1> sewn to the backing at a<2>, and the whole heating element is embedded in the stopping S of the ma.ttress, Fig. 4. An electrical cut-out may be introduced to break the circuit at a predetermined temperature, and a lamp or other indicator may be provided to show whether the current is " on " or " off."
Patent GB-266975-A (GB)
Title: Improvements in or relating to dry cleaning
IPC: D06F43/00
Filed: 1926-07-03
Abstract: 266,975. Dicker, S. G. S., (American Dry Cleaning Co.). July 3, 1926, Fats and fatty oils, extracting by solvents.-In a dry cleaning process in which a volatile low-boiling solvent liquid whose vapour is heavier than air, and preferably a non-inflammable liquid such as carbon tetrachloride, is employed, the liquid and its vapour are maintained at approximately constant pressure during the cleaning process, the subsequent volatilization of the liquid, and condensation of its vapour by providing free communication with the atmosphere. In a condenser 32 above a storage tank 25 for the solvent liquid are located a coil 35 always open to atmosphere, a coil 38 connected by a pipe 40 to a still 18, and a coil 39 connected by a valved pipe 43 with a washer 10, which is preferably provided with a rotating drum 21, a steam jacket 12, and a steam coil 68. The lower end of each coil enters the tank 25. Solvent is passed to the washer by a valved pipe 20, and during the washing operation, which may be carried out at 90-110‹ F., the washer is in free communication with the atmosphere through the pipe 43 and coils 39, 35. After the washing operation, the bulk of the solvent is passed by a valved pipe 15 to the still 18, from which it is volatilized, and passing through the pipe 40 is condensed by a coil 38, communication of the still with the atmosphere being maintained by the coil 35. The valve on the pipe 15 is now closed, and a pump 28 started, whereby air is circulated from the tank 25 through a pipe 26, a heater 30 in which its temperature may be raised to 200‹ F., the washer 10, pipe 43 and coil 39. Thereby the washing materials are dried, and residual solvent is recovered. Finally the valve on the pipe 43 is closed, a cock 71 operated to connect the pump to atmosphere at 73, and the door 61 of the washer opened, whereby the cleaned materials are freed from dust and from final traces of the solvent. If desired, the materials may be rinsed a second time before being dried. The bulk of the apparatus is lined with zinc or lead, but the still 18 may be of iron. Oils, grease &c. extracted from the treated materials collect in the base 54 of the still and may be drawn off when necessary.
Patent GB-962489-A (GB)
IPC: H01B13/00
Filed: 1962-05-01
Abstract: 962,489. Corrugating. HACKETHAL - DRAHT - UND KABEL - WERKE A.G. May 1, 1962 [May 17, 1962], No. 16744/62. Heading B3E. Apparatus for corrugating thinwalled tubular shells by means of a freely rotatable annular corrugator disc rolling upon the external periphery of the tubular shell is characterized in that the corrugator head which serves to support and to drive the corrugator disc is driven through a tubular bushing fast with said head, which bushing is mounted with limited axial displaceability on a stationary sleeve coaxially to the latter and to the tubular shell. Tube R to be helically corrugated is fed axially through a corrugator head 7 carried by a tubular bushing 8 rotated by gearing 4, 5 through infinitely variable drive means 2 by a motor 1. The bushing 8 is supported on a fixed sleeve 6, guiding the tube R, for limited axial movement determined by a spacing ring 11 fixed to the bushing 8. The ring 11 may cause a lamp 17a or 17b to light up according to the limit position of axial displacement, the ring 11 rocking a lever 12 controlling switch means 15, 16.
Patent GB-1462028-A (GB)
Title: Nematic liquid crystal compounds and compositions comprising   substituted azoxybenzenes
IPC: C09B55/00
Filed: 1975-04-23
Abstract: 1462028 p-n-Alkyl-p<SP>1</SP>-cyanoazoxybenzenes DAI NIPPON TOKYO KK 23 April 1975 [19 Dec 1974] 16745/75 Heading C2C [Also in Division C4] The invention comprises compounds of the formula where R is n-(C 4 -C 8 )alkyl. They may be prepared by condensing a compound of the formula with p-cyanoaniline and oxidizing the resulting p - n - alkyl - p<SP>1</SP> - cyanoazobenzene with peracetic acid. They have a positive dielectric anisotropy and are therefore useful in nematic liquid crystal compositions.
Patent GB-878846-A (GB)
Title: Textile fiber and fabric conditioners
IPC: D06M15/263
Filed: 1960-05-12
Abstract: A branch-chain C16 monohydric alcohol is produced from an olefin C7 feed by the Aldox modification of the Oxo process using a zinc catalyst.  Using a C9 olefin feed a C20 branch-chain alcohol can be produced.ALSO:Textile fibres are treated with an aqueous emulsion of a C13 to C32, branched-chain, monohydric, primary alcohol and 0,05-10% by weight based on the water of an emulsifying agent.  The emulsion is applicable to the conditioning of raw cotton, cellulose propionate, cellulose butyrate, ethyl cellulose, benzyl cellulose, wool, silk, polyamide, polyesters and acrylic fibres.  The emulsion imparts softness, loftiness and antistatic properties to the treated fabrics or fibres.ALSO:Textile fibres are treated with an aqueous emulsion of a C13 to C32 branched-chain, monohydric, primary alcohol and 0.05-10% by weight of an emulsifying agent.  Particularly suitable emulsifiers are dialkyl phenoxy polyoxyethylene nonionic emulsifiers having a hydrophobic group containing 20-36, carbon atoms and an alkylene oxide hydrophilic group which constitutes from 50-95, preferably 70-95% weight of the emulsifier.
Patent GB-129635-A (GB)
Title: Improvements in Pulsometers for raising Liquids.
Inventor: GUYE PHILIPPE AUGUSTE
IPC: F17C9/00
Filed: 1919-07-07
Abstract: 129,635. Guye, P. A. July 9, 1918, [Convention date]. Direct gas-pressure apparatus, automatic. - Consists in direct fluid-pressure apparatus for raising liquids in which vapour evaporated from the liquid is used. The liquid to be raised flows from the tank R<1>, through a non-return valve a to the lifting-chamber P and a vaporizer V provided with a steam or hot-water jacket. The vapour generated flows through the pipes s, d and a, refrigerator n to the upper tank R<2> until the liquid level in the chamber Preaches the top of the tube s. The escape of the vapour is then prevented, and when the pressure is sufficient the contents of the chambers P and V are discharged past the valve b to the tank R<2>.
Patent GB-942493-A (GB)
Title: Improvements relating to the hydrogenation of petroleum hydrocarbons
IPC: C10G45/36
Filed: 1961-05-10
Abstract: A process for the partial hydrogenation of a gasoline containing gum-forming unsaturated hydrocarbons, and which has been produced by a thermal cracking process, e.g. operated at 590-900 DEG  C., so that substantially all the sulphur present is in the form of thiophene rings, comprises partially hydrogenating the gasoline at 0-200 DEG C. in the presence of a hydrogenation catalyst and hydrogen, without recycle of the hydrogen, at a hydrogen treating rate of less than 300 SCF/B, and with an excess of hydrogen over that consumed of less than 50 SCF/B.  The pressure may be 0-1000 p.s.i.g., and the space velocity 0.5-10 v/v/hr. The catalyst may be a Group VIII metal, for example nickel, which may be present predominantly as metal in an amount of 1-50% wt., supported on a refractory oxide carrier, for example alumina, a clay mineral, or a siliceous mineral such as kieselguhr. The preferred carrier is sepiolite (meerschaum). Specification 848,232 is referred to.
Patent GB-577959-A (GB)
Title: Improvements in neck ties
IPC: A41D25/00
Filed: 1943-10-20
Abstract: 577,959. Neckties. SPENCE, W. L. Oct. 20, 1943, No. 17230. [Class 141] A reversible double-ended necktie is made from a single piece of material folded longitudinally or from two superposed pieces placed wearing face to face. In the former case, a rectangular shaped piece shorter than tie length may be folded inside out and cut along lines A, C, B, Fig. 2. The ends of the waste part are cut square and inserted as a neck-band portion between the symmetrically shaped parts formed by cutting the main part by a transverse cut at C into two parts. The edges O, A, C, C, B, Fig. 5, are then joined by stitching and trimmed, and the tie turned inside out to give a tie of full length with one edge straight. If desired, tapering on both edges may be provided. Alternatively, instead of folding a single short piece of material, two short pieces of material may be superposed face to face and a neck band part inserted as before. In a further modification, the necktie may be formed from full tie length material with one or both edges tapering and with an integral neck, band.
Patent GB-939797-A (GB)
Title: Heterocyclic amide amphoteric compounds
IPC: C07D295/15
Filed: 1960-05-16
Abstract: The invention comprises compounds having an R-CO- radical attached directly to a nitrogen atom and at least one -R2-COOM radical connected directly to another nitrogen atom of a polyamine consisting of any one of (a) an aminoalkyl morpholine; (b) an aminoalkyl piperidine; (c) an aminoalkyl piperazine; (d) an aminoalkyl pyrrolidine; (e) an aminoalkyl pyridine; (f) an aminoalkyl pyrrole; (g) an aminoalkyl pyrroline; (h) an aminopyridine; (i) a diamino pyridine; (j) pyrrolamine; (k) piperazine; (the aminoalkyl portion of (a) to (d), (f) and (g) being -N(R1)R3- connected directly by means of the group R3 to a nitrogen atom in the rings thereof, and the aminoalkyl portion of (e) being -N(R1)R3-connected directly to a carbon atom); (l) said (a) to (d), (f) and (g) having at least one of the hydrogens of the hydrocarbon groups in the rings thereof subsituted by a hydroxy, C1-4 alkyl or C1-4 alkylol radical; (m) said (e) to (k) having at least one of the hydrogens of the hydrocarbon groups in the rings thereof substituted by a hydroxy, C1-4 alkyl or C1-4 alkoxy radical; (n) said (e) to (k) and (m) having their rings partially or completely saturated; wherein R represents a C4-18 hydrocarbon radical which may be hydroxysubstituted, R1 represents hydrogen or a C1-4 hydrocarbon radical, R3 represents a C2-4 hydrocarbon group, R2 represents a C1-4 alkyl group, a C2-4 hydroxyalkyl group, a C3-4 alkoxyalkyl group or a C3-4 hydroxyalkoxy-alkyl group, and M represents hydrogen or an alkali metal.  The above compounds may be prepared by acylating an appropriate polyamine with an equimolar proportion of an acid of the formula R-COOH or its anhydride, followed by reaction with one or more halocarboxylic acids of the formula halogen-R2-COOM. Acids of the formula R-COOH are, for example, saturated or unsaturated aliphatic acids (including hydroxystearic and ricinoleic acids), aryl substituted aliphatic acids (e.g. Twitchell fatty acids), and cycloaliphatic carboxylic acids containing no more than 4 condensed nuclei (e.g. hexahydrobenzoic, resinic and naphthenic acids).
Patent GB-914068-A (GB)
Title: Regulating systems for shunt-excited low voltage electric generators
Inventor: LUESCHER JAKOB
IPC: H02J7/24
Filed: 1959-05-22
Abstract: 914,068. Automatic voltage-control systems. BOSCH G.m.b.H., ROBERT. May 22, 1959 [May 23, 1958], No. 17420/59. Class 38 (4). In a system in which the output of a shuntexcited D.C. generator is controlled by a transistor in series with the field, the transistor is biased to cut-off by the rectified output of an oscillator which is keyed on and off in response to the output current and/or voltage of the generator. The generator G supplies a load 11 through a current-measuring resistor 32 and rectifier D 6 . The field F is in the collector circuit of a transistor T which is normally conductive due to base bias through resistor 23. A second transistor T 2  forms an oscillator with tuned circuit 15, 19 and feed-back winding 18, but is normally biased to cut-off through resistor 30. However, when the portion of generator voltage tapped-off potential divider P reaches the level at which a diode D 4  conducts heavily (in the forward direction), transistor T 2  conducts and an oscillating output is obtained from winding 17. This output is rectified by a diode D 2  and cuts-off the transistor T so that the generator voltage falls, and the control cycle continues. Similarly, an increase in load current causes diode D 5  to conduct and render transistor T 2  conductive. In another embodiment, Fig. 1 (not shown), the current limiter is omitted, the feed-back resistor 30 is omitted, the oscillator has a series tuned base/emitter circuit, and the forward conducting diode D 4  is replaced by a Zener diode.
Patent GB-544899-A (GB)
Title: An improved toy or puzzle
IPC: A63F9/10
Filed: 1940-12-09
Abstract: 544,899. Puzzles. SMITH, J. R., FRIEND-, and KIDDICRAFT, Ltd. Dec. 9, 1940, No. 17439. [Class 132 (iii)] A jig-saw puzzle comprises a sheet which has a pictorial representation thereon including a background which is cut in conventional manner into elements and a main subject which is a structure such as an aircraft or part thereof, the said main subject being cut into elements capable of interfitting assembly, some at least of said elements consisting of complete representations in configuration and pattern of components of the depicted structure or groups of components thereof. As shown, components C, F, G, H of an aircraft cabin fit into corresponding spaces C<SP>1</SP>, F<SP>1</SP>, G<SP>1</SP>, H<SP>1</SP>. Component pieces D, E, representing parts half-hidden by others fit into spaces D<SP>1</SP>, E<SP>1</SP> inside the larger component C.
Patent GB-340964-A (GB)
Title: Improvements relating to electro-optical light image microphones
IPC: H01J29/00
Filed: 1929-06-06
Abstract: 340,964. Television ; discharge apparatus. ELEKTRO-PHYSIKALISCHE GES., 65, Netzgerstrasse, and KASSNER, E., 43, Elisabethstrasse, both in Munich, Germany. June 6, 1929, No. 17451. Convention date, April 19. Void [Published under Sect. 91 of the Acts.] Drawings to Specification. [Classes 39 (i) and 40 (iii).] Television transmitters and receivers comprise " electro-optical light image microphones " adapted to signal all parts of a picture simultaneously. The transmitter comprises a condenser arranged in a tuned circuit and containing a photo-electric plate on which the image to be transmitted is projected. In this way a complex of high-frequency oscillations representing the pictures is said to be produced. The arrangement at the receiver is somewhat similar, the " oscillation configuration " set up in the condenser giving rise to such a distribution of the discharge from a source of electrons as to reproduce the picture on a fluorescent plate of the condenser. The transmitter condenser, which may comprise a transparent diaphragm of wire-netting or of " nickel-gold-iron " and also a photo-electric plate, is enclosed in a lenticular glass case (Fig. 3, not shown) containing a rare gas at low pressure. The receiver condenser (Fig. 11, not shown) is similar and comprises in addition a thin-walled glass plate which serves as a dielectric and is coated with a fluorescent screen upon which electrons from the cathode impinge. The " oxide cathode " consists of a zig-zag wire wound on an insulating ring. The transmitter as a whole is mounted in gimbals so that it may be directed on any object (Figs. 13, 14, not shown). A quartz and fluorspar objective may be used for ultraviolet radiation. The Specification does not admit of satisfactory abridgment.