baber/WOPTO huggingface dataset:
Patent GB-352301-A (GB)
Title: Electric lamp sockets
IPC: H01R33/955
Filed: 1930-08-16
Abstract: 352,301. Electric lamp holders. FAIRWEATHER, W., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Aug. 16, 1930, No. 24578. [Class 39 (ii).] A socket or holder provided with a switch comprises a cylindrical shell 9, Figs. 1 and 6, formed at one end with an apertured wall 26 for the reception of the leading-in wires 13 and open at the other end to receive the switch-carrying end of a moulded member 1 which is provided with a lamp socket 2 and spring-pressed contact pins 5, 6 at its outer end, a slot 31 being provided longitudinally of the shell 9 to receive a switch-lever 19 mounted on the member 1 and adapted to be operated by a slidable member 32 supported by the shell. The member 1, Fig. 7, is provided with a diametrical slot S to receive a U-shaped frame supporting the switch-lever and a movable contact member 20, Fig. 3, which operates with a spring action, and recesses 10 are formed in the member 1 to receive diametrically opposed ribs 11, Fig. 6, on the member 9, a space being left between the walls 12 of the recesses 10 and the ribs 11 to receive and confine the leading-in wires 13 when the holder is assembled. Operation of the switch-lever 19 is effected by a member 32, Fig. 1, provided on its underside with a lug 32x which is slidably engaged between the sides of the longitudinal slot 31 in the member 9, a recess 32c being formed in the lug to receive the end of the switch lever. A one-piece moulded shade 33 may be secured upon the external wall of the lamp socket 2 by a pin- and-slot connection.
Patent GB-246261-A (GB)
Abstract: 246,261. Andrew, F. C. Nov. 20, 1924. Vaporizing by air currents; vapours, delivering; deodorizing air.-Portable apparatus for purifying and deodorizing the air of rooms, or for disseminating the vapours of insecticides &c., comprises a tubular casing 4 enclosing an electrically driven fan 12 which forces air upwardly through an annular filter 21 surrounding a receptacle 19 containing a volatile deodorant, and thence through a conical outlet tube 24. In the form shown the casing 4, formed of metal or of vulcanite or other non-metallic material, is mounted in a base ring 1 which is supported by feet 2 and is fitted with a detachable canvas filter screen 5 secured to a wire ring held between flanges on metal rings 7 fitted together frictionally. An electric motor 8 is mounted in a ring 9 supported from the casing 4 by radial arms 10 and its spindle 11 is fitted with four blades 12 at each end. The perforated base plate 18 of the annular air filter is formed in one with the central receptacle 19, the base plate 20 of which may be removable. Charcoal or fibrous filtering material on the plate 18 is covered by an annular perforated plate 22 which supports a conical outlet tube 24. The central receptacle 19 contains peat or other absorbent charged with a deodorant, the vapours of which mix with the air which has been forced through the annular filter. A combined perforated cover and handle is held to the casing 4 by a bayonet joint. In modifications the base 20 of the receptacle 19 may be of downwardly extending conical form and may be perforated, and for delivery of insecticidal or additional deodorant vapours a spiral of wire covered with absorbent material or supporting tufts of absorbent impregnated with the desired chemical may be arranged in the conical tube 24. The casing of the motor 8 may be egg-shaped to avoid impedance to the flow of air through the casing.
Patent GB-1044774-A (GB)
Title: Improvements in or relating to the production of wire ropes for reinforcement purposes
Inventor: STEIN OSWALD
IPC: C21D7/10
Filed: 1963-06-20
Abstract: 1,044,774. Altering physical properties; stretching. W. STEIN and A. LUBAL, [trading as ASTA EISENUND METTALLWARENERZEUGUNGS KOMM.-GES. STEIN & CO.]. June 20, 1963, No. 24633/63. Headings B3E and B3V. [Also in Division D1] A method of improving the mechanical properties of steel wire rope for reinforcing concrete structures comprises stretching the reinforcement in a longitudinal direction at least up to the yield point or 0À2% proof stress value of the starting material. Steel wire or cable 1 is continuously stretched by passing several loops about a grooved pair of driven wheels 2 between which is arranged a member 3 which applies a force P to the wire. Alternatively the wire is passed over, either pairs of grooved wheels of different diameters and rotating at different speeds, or wheels of the same diameter rotating at different speeds or a pair of two diameter or conical shaped drums rotating at the same speed. The wheels or drums may comprise part of the rope producing machine. The process may also be used as a non-destructive test followed by a magnetic flaw detection test.
Patent GB-658229-A (GB)
Title: Improvements in or relating to cutting heads for electric dry shavers
IPC: B26B19/14
Filed: 1949-09-27
Abstract: 658,229. Dry shavers. HARRIS, J. T. (Richard & Ammann Soc. Anon.). Sept. 27, 1949, No. 24806. [Class 131] In a cutting head for a dry shaver, in which a pair of radially-arranged, rotating blades cooperate with the inner surface of a domed grid, each blade is mounted on an arm of a supporting spring, the arms comprising half helices of the same hand one being 180 degrees in advance of the other and extending from a central disc. The scimitar-shaped blades 15, 16 are welded to the arms 13, 14 of a resilient plate 12 secured to a boss 11 screwed to the driving spindle 5 and are inclined to a plane perpendicular to the axis of rotation of the spindle. The cap 1 to which the grid 2 is secured by a spring ring 10 may be permanently attached to the body of the dry shaver or may be removably attached by bayonet slots 4. The helical spring arms 13, 14 provide a fan action which cools the grid.
Patent GB-407071-A (GB)
Title: Improvements in or relating to the production of combined sound and picture record films
IPC: G11B7/28
Filed: 1932-09-06
Abstract: 407,071. Producing combined sound and picture films. SCHLESINGER, M. A., 218, West 42nd Street, New York, U.S.A. Sept. 6, 1932, No. 24816. [Class 40 (ii).] A composite photographic sound record is recorded upon a picture film by superimposing the current induced by two or more sources of sound, the sound-current sources including a sound record film, an electrical pick-up of a gramophone and a microphone. The sound recording is effected during the printing of the picture record. A sound film 5 passes through a sound gate 10 and induces current variations in a photo-electric cell 11, which is connected to amplifiers 14, 15 for modulating a photographic recording lamp 18. Currents from a gramophone electric pick-up 31 and a microphone 27 can also be applied to the device 18, switches, 13, 32 and 28, respectively, being available for cutting out of circuit either the photo-electric cell 11, the pick-up 31, or the microphone 27. A loud speaker 33 may be put into circuit by a switch 39 to act as a monitoring means. Pictures are printed upon the positive film 22 at a printing gate 23 from a negative picture film 20. The recording device 18 is mounted on the printing apparatus and the sound may be recorded directly upon the sound track of the film 22 as a positive record by effecting a phase adjustment of the device 18.
Patent GB-1519512-A (GB)
Title: Watertreatment process
IPC: C02F5/10
Filed: 1975-06-10
Abstract: 1519512 Inhibiting deposition of scale W R GRACE & CO 10 June 1975 [10 June 1974 18 June 1974] 24825/75 Heading C1C [Also in Divisions C3 and C7] A process for inhibiting the deposition of scale on to the heat exchange surface of an evaporator comprises adding to the evaporator a maleic acid or maleic anhydride polymer and a non-ionic or anionic surfactant selected from e.g. polyethyleneoxy ethers and esters of a variety of alcohols, mercaptans, polycarboxylic acids, etc. The method is suitable for use in e.g. a saline water evaporator. The polymer is added to provide concentrations of 0À1 to 100 p.p.m. and the surfactant of 0À25 to 10 p.p.m. by weight.
Patent GB-1202496-A (GB)
Title: Photographic camera
Inventor: HABERLE KARLHEINZ
IPC: G03B9/70
Filed: 1968-05-24
Abstract: 1,202,496. Photographic flash and shutter synchronization. EASTMAN KODAK CO. May 24, 1968 [May 26, 1967], No.24863/68. Heading G2A. A photographic camera having an electronic shutter speed control circuit comprises an RC. member 3, 2 and a holding magnet 5, and a flash attachment connectible to a common battery. Premature closing of the shutter due to ignition of a flash lamp is obviated by means of a capacitor 7 connectible in parallel with the holding magnet. The circuit shown comprises a photo-resistor 3, an amplifier and trigger device 4 and three resistors to discharge capacitor 2 after use, 10 giving a shutter speed of 4 milliseconds when photoresistor 3 is not illuminated and 13 to counteract decrease in capacitance of capacitor 7. Flash cubes or bulbs may be used and switches 8 and 9 may be closed by means of a control member actuated by fitting of the flash lamp in its holder.
Patent GB-1352157-A (GB)
Title: Electrophotographic image reproduction
IPC: G03G5/02
Filed: 1971-04-19
Abstract: 1352157 Electro-photographic image reproduction XEROX CORP 19 April 1971 [30 March 1970] 24978/71 Heading G2H An electrically insulating elastomer layer is imaged by deformation through subjection to a uniform electrostatic charge end then exposing the surface of photo-conductor contacting the layer to a pattern of light and shadow such that the layer is deformed in response to the electrostatic charges at the image gradients conforming to the pattern. The pattern is clocked by continuing the charge but reversal of the polarity of the charge will erase the image on the layer. Accordingly it is possible to produce on the layer up to thirty images per second a suitable optical imaging system being provided for this purpose. The charge may be applied to the layer through electrodes of conductive liquid or conductive gas and lasers may be used in the image projecting systems.
Patent GB-359110-A (GB)
Title: An improved design and construction of pneumatic tyre
IPC: B60C15/02
Filed: 1930-08-21
Abstract: 359,110. Pneumatic tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and PAULL, W. H., of Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. Aug. 21, 1930, No. 25000. [Class 144 (ii).] A pneumatic tyre, for use on wheels of the kind described in Specification 344,383, is moulded substantially to the cross-section maintained under load, and comprises a flat tread portion 1 rendered inextensible, as by circumferential wires 2, their curved side walls 3 merging into base portions shaped to seat on a rim-portion or portions of curved form. The tyre may be formed with wired edges 5, Fig. 1, to receive an air-tube ; or, as shown in Fig. 2, a tubeless tyre may be formed with a single rim-engaging bead 4.
Patent GB-1422078-A (GB)
Title: Disazo pigments and process for their preparation
IPC: C08L67/00
Filed: 1974-06-06
Abstract: 1422078 Disazo pigments HOECHST AG 6 June 1974 [6 June 1973] 25128/74 Heading C4P Novel disazo pigments of formula (where each R, which may be the same or different, is H, halogen, methyl or methoxy and each X, which may be the same or different, is H or halogen) are prepared by diazotizing the corresponding 2,7-diamine-diphenylenesulphone and coupling, optionally in the presence of organic solvents, with the appropriate 5- acetoacetylamino-benzimidazolone or a mixture of two such benzimidazolones. After preparation the pigments are preferably heated in an organic solvent such as ethanol, o-dichlorobenzene or dimethylformamide to modify their crystal form. The pigments are used for printing inks, colour lakes and dispersion paints and for colouring rubber, plastics and natural and synthetic resins. They are also used for pigment printing especially on textile fibres and paper.
Patent GB-1203929-A (GB)
Title: Tyre vulcanising press
IPC: B29D30/54
Filed: 1969-05-16
Abstract: 1,203,929. Moulding tyres. A. HERBERT, and M. GUHR, [trading as LEONHARD HERBERT MASCHINENFABRIK]. 16 May, 1969 [17 May, 1968], No. 25158/69. Heading B5A. A tyre press, e.g. for the retreading of tyres, includes an upper mould part 2 movable downwardly on to a lower mould part 1, a heating bag 18 locatable, when folded double, between cylinders 12, 14 and its edges clamped to the inner one, pressure fluid cylinders 9a, 9b which act on the base of the outer cylinder to raise it to either reject a vulcanized tyre or receive a fresh tyre 46 from a support 45, Fig. 1; in the latter case frictional forces between the bag and cylinders cause the inner cylinder to be raised to a predetermined position in which it is locked before the upper mould part is lowered and the mould closed. With the cylinders 12, 14 in their uppermost positions, Fig. 2, a fresh tyre is received on a seat ring 13 of the outer cylinder, and a flange 26 of a rod 24 depending from the base of the inner cylinder engages a fixed abutment 8, and a locking bolt 28 is passed through a transverse bore in the rod to secure it. An upper seat ring 43 for the tyre is secured to a cylinder 42 and is driven downwardly relative the upper mould part by a fluid cylinder 39, and rods 48a, 48b depending from the cylinder base 41 are brought into abutment with rods 30a, 30b upstanding from the outer cylinder base so that the spacing between the rings 13, 43 is retained during the subsequent lowering of the upper mould part, the tyre, the outer cylinder and the closure of the press. The inner cylinder remains stationary during this action during which the bag impinges the ring 43 and is guided into the tyre cavity, fluid under pressure being fed into the bag via a pipe 29. On opening the press and raising the outer cylinder the heating bag is drawn into the space between the two cylinders; the tyre is raised to a height enabling the support 45 to be located beneath it and the bolt 28 is removed from the rod 24 whereupon the cylinders 9a, 9b lower both cylinders 12, 14 to the position of Fig. 1.
Patent GB-1031593-A (GB)
Title: Improvements in irradiated nuclear fuel reprocessing
IPC: C01G43/06
Filed: 1963-06-25
Abstract: An aqueous solution of irradiated nuclear fuel is subjected to a single cycle extraction with an organic solvent and then the organic phase is contacted with an aqueous extraction agent to produce an aqueous extract stream containing uranium and at least one of the fission products ruthenium, zirconium and niobium, the aqueous stream is dehydrated, the solid residue fluorinated, and uranium fluoride separated from fission product fluoride.  In a process described with reference to a flow diagram, uranium dioxide fuel elements are dissolved in nitric acid and the solution is introduced at about the middle of an extraction column where it flows downwards in countercurrent with diethoxybutane or dimethoxypentane; a stripping nitric acid solution is fed into the top of the column. The organic solvent extracts uranium, plutonium, and some of the fission products specified above, leaving the rest of the fission products in the aqueous phase which is evaporated and calcined, nitric acid being recovered. The organic phase is contacted in a second column with a nitric acid solution containing ferrous iron, which reduces and extracts the plutonium. The organic phase from the second column contains uranium and the specified fission products, all of which are returned to aqueous solution by contact in a third column with very dilute nitric acid.  The solvent from this column is purified by distillation and used again for extraction; the aqueous solution is evaporated, the residue calcined and treated with HF at 250-350 DEG C. and with F2 at 300-600 DEG  C. to form volatile fluorides.  The vapours are passed through a partial condenser and a separator, where fission product fluorides are removed, leaving a stream of pure UF6. Alternatively fluorination may take place with F2 alone, and separation of the fluorides may be effected by fractional distillation. In a modified process, the organic solvent is a solution of tributyl phosphate in kerosene, which is purified by extraction with aqueous sodium carbonate solution.  Other organic solvents referred to are methyl isobutyl ketone, dibutyl carbitol, and amines.
Patent GB-1024657-A (GB)
IPC: C07C49/245
Filed: 1963-06-25
Abstract: a  - Methyl - b  - (3,4 - dihydroxyphenyl)-alanine is prepared by reacting 3,4-dihydroxyphenylacetone or its addition compound with sodium bisulphite either with an alkali metal cyanide and ammonium carbonate in aqueous or aqueous-alcoholic solution in the presence of a reducing agent to give 5-(31,41-dihydroxybenzyl)-5-methylhydantoin, or with hydrocyanic acid or an alkali metal cyanide and reacting the cyanhydrin obtained with ammonium carbonate in the melt or in a solvent to give the hydantoin, and subjecting the hydantoin to alkaline hydrolysis in the presence of a reducing agent or to acid hydrolysis.
Patent GB-1015424-A (GB)
Title: Process of producing 2-amino alkanol esters of sulfuric acid
IPC: C07C305/00
Filed: 1962-07-02
Abstract: 2-Amino alkyl sulphuric acid esters wherein the alkyl groups contain 2 to 4 carbon atoms, are made by fixing substantially equal molar proportions of the corresponding 2-amino alkanol and sulphuric acid at a temperature not substantially exceeding 70 DEG  C., to form the amino alkanol sulphuric acid addition salt, heating the resulting mixture to the temperature of from 120 DEG  to 200 DEG  C., and preferably for at least one hour, while stirring, then applying vacuum to the reaction mixture while maintaining the temperature at least at 110 DEG  C., continuing heating and stirring in a vacuum until crystallization sets in and the temperature rises due to the generated heat of crystallization, cooling the reaction mixture at atmospheric pressure whilst stirring, and removing the crystalline 2-amino-alkyl-sulphuric acid ester from the reaction mixture, said cooling and subsequent operations being conducted in the presence of water in an amount at least sufficient to maintain the mobility of the mixture.  The preferred operating temperatures for mixing the amino alkanol and sulphuric acid are in a range to 40 DEG  to 75 DEG C., and the subsequent vacuum heating stage from 130 DEG  to 165 DEG C.  The filtrate and wash waters from a preceding operation may be added to form the aqueous mixture of amino alkanol sulphuric acid addition of salt, the final filtrate crystals may be washed with cold water and this filtrate and wash water forming the re-cycle liquors for a succeeding batch.  2-Amino-ethanol, monoisopropanolamine, 2,2-dimethyl - 2 - amino ethanol, and N - methyl - 2 - amino ethanol constitute the preferred alcohols for the process which are subject of the examples. The description names 2-methyl ethanolamine, Nn-butyl-2-amino ethanol, and 2-amino-1-butanol as other suitable starting materials.
Patent GB-338520-A (GB)
Title: Improvements in cooking ranges
IPC: A47J37/12
Filed: 1929-08-19
Abstract: 338,520. Robinson, T. Aug. 19, 1929. Casings.-Apparatus for evacuating steam and fumes from a cooking-pan or other chamber, comprises a vacuum chamber 5 into which the steam &c. is led by a pipe 4, a chamber 7 in free communication with the chamber 5 through an opening 6, and a fan 10 arranged in the chamber 7 behind an opening in a partition 9, the gases passing out through a pipe 8. In the construction shown, the partition 9 is of truncated conical form, and the chamber 7 tapers towards the outlet. The apparatus is illustrated as applied to a frying- range of the kind described in Specification 139,584, [Class 126, Stoves &c.].
Patent GB-449060-A (GB)
Title: A process for the production of high molecular 1.2-glycols
IPC: C07C31/18
Filed: 1935-09-12
Abstract: 1 : 2-Olefines containing at least eight carbon atoms in the molecule are heated with hydrogen peroxide in the presence of an aliphatic acid having not less than two and not more than four carbon atoms whereby glycols are produced.  In an example, 1 : 2-hexadecene dissolved in glacial acetic acid is treated with hydrogen peroxide to give the mono acetyl derivative of 1 : 2-hexadecanediol, which is saponified to obtain the corresponding glycol.  A small quantity of a monobasic acid is also obtained. The a -oxysulphuric esters and a -oxysulphonic acids of the glycols are mentioned.  The glycols are stated to be emulsifying-agents.ALSO:Higher glycols derived, by oxidation, from 1 : 2-olefines having at least eight carbon atoms are stated to have emulsifying properties.
Patent GB-981204-A (GB)
Title: Concentration of suspended solids
IPC: B01D21/06
Filed: 1962-07-03
Abstract: 981,204. Gravity-separation apparatus. EIMCO CORPORATION. July 3, 1962 [July 3, 1961], No. 25428/62. Heading BID. Flexible picket members 27, upstanding from rake arms 16, and provided for stirring purposes, are periodically deflected to remove solids therefrom by contact with a fixed cross member 28. Suspension for treatment is supplied at 19, 21, 22.
Patent GB-930092-A (GB)
Title: Improvements in and relating to xylene isomerisation processes
Inventor: MORGAN JOHN LEWIS
IPC: C07C5/27
Filed: 1960-07-21
Abstract: The isomerization of xylenes is effected in the presence of a silica-alumina catalyst and steam in an amount up to 1% by weight of hydrocarbon.  The isomerization is effected at 300 DEG -500 DEG C., and atmospheric pressure.  In the case of a fluidized or moving bed of catalyst steam is injected near the point of withdrawal of spent catalyst.  The Provisional Specification refers to the addition of methyl alcohol instead of steam and to isomerization and disproportionation reactions.
Patent GB-411719-A (GB)
Title: Improvements in or relating to die holders for wire-drawing machines
IPC: B21C3/14
Filed: 1933-09-14
Abstract: 411,719. Drawing wire. RICHARDS, S. H., and ROBERTSON & CO., Ltd., W. H. A., Lynton Works, Bedford. Sept. 14, 1933, No. 25484. [Class 83 (iv).] In a die-holder for wire-drawing machines of the kind having a channel for conducting lubricant to the wire as it leaves the die, lubricant is fed to the holder at a point beneath the die, and flows around the lower part of the die at least up to the height of the wire. A die 7, Figs. 1 and 2, is supported in the arcuate lower walls 12 of the casting forming the holder and is held against the front wall 3 by the tension of the wire. The end walls are formed with slots 6, 8, for the passage of the wire. A passage 9 for the flow of lubricant is formed in the lower wall, a similar slot communicating therewith being formed in the end wall 3. Lubricant enters through the boss 14 into the channel 9 and passes both to the wire about to enter the die and, through the channel 10, to the wire as it leaves the die. The holder is secured in the die box by a lug 1. In a modification the holder comprises a stamping 15, 16, Fig. 4, and a plate 22 retained by bolts, the holder being secured in the box by a screwed boss 25. The die is supported in arcuate portions in the lower wall which is slotted at 17 to communicate with a slot 21 in the wall 16. Flanges 19 fit closely on the top of the die. Lubricant enters through the tube 26 and flows to both sides of the die as in the first modification. The invention is applicable to the machine described in Specification 411,570.