baber/WOPTO huggingface dataset:
Patent GB-1511511-A (GB)
Title: Electrostatic copying apparatus
IPC: G03G15/01
Filed: 1975-05-05
Abstract: 1511511 Electrostatic copying AGFAGEVAERT AG 5 May 1975 [4 May 1974] 18764/75 Heading B6C In an electrostatic copying machine a carriage 6, movable with respect to an original 13, comprises an objective, a device for forming and developing an image, and corona discharge 43 arranged in front of the objective in its direction of movement. A record support 4 below the carriage is charged by corona 43 and imaged with light passing through lens strips 34-36, and then developed by magnetic brush 46. Carriage 6 has three forming and developing sections (9, 10, 11) Fig. 1 (not shown) each for one colour. After developing, support 4 is moved around rollers (2, 3) Fig. 1 (not shown) to a corona transfer station (20). Filters 29 are provided. In another embodiment a magnet (63) collects developer from a stationary trough (60) and transports it in contact with and across support 4 to develop the image.
Patent GB-732983-A (GB)
Title: Manufacture of a base material for thick sauces
IPC: A23L19/00
Filed: 1952-07-25
Abstract: A base material for thick sauces is prepared by cooking apple pomace in aqueous alkali, disintegrating the resultant pulp to give a suspension, and acidifying.  Disintegration and acidification can be in either order.  Dried pomace can be used, and preferred pH values are 8.5 to 11 when pectic substances are solubilized, and 2.5 to 4.5 when they are reprecipitated within the suspension, sodium carbonate and hydrochloric acid being the preferred reagents.  The producer may be sterilized by adding sulphur dioxide.
Patent GB-679699-A (GB)
Title: Improvements in or relating to methods of preparing 8-haloxanthine salts of organic bases and the 8-haloxanthine salts of the organic bases resulting from said methods
IPC: A61K31/00
Filed: 1950-07-28
Abstract: 8-Haloxanthine salts of 2-alkyl-9-phenyl-2 : 3 : 4 : 9-tetrahydro-1-pyridindenes are made by mixing solutions of the compounds in solvents at raised temperature and cooling.  The ammonium salt of the haloxanthine may be used.  Examples of the 8-chloro-, 8-bromotheophylline salts of 2 - methyl - 9 - phenyl-2 : 3 : 4 : 9-tetrahydro-1-pyridindene are given.  Other 8-haloxanthines, all having H- in the 7-position, which may be employed, are chloro-and bromo-, with methyl-, and ethylxanthines, and iodo-, with ethyl-, xanthines.
Patent GB-590695-A (GB)
Title: Improvements in or relating to coal cutters
IPC: E21C27/26
Filed: 1944-10-03
Abstract: 590,695. Coal-cutting machines. MACASKILL, D. J. C., and DONCASTER AMALGAMATED COLLIERIES, Ltd. Oct. 3, 1944, No. 18927. Drawings to Specification. [Class 68 (i)] A coal-cutting machine is provided with two or more relatively immovable horizontallydisposed undercutting jib frames arranged side by side, around each of which moves a separate endless cutter chain. The cutter chains are driven by the same motor or by separate motors through reduction gearing and circulate in opposite directions, with the adjacent stretches of the chains retreating. The subjectmatter of this Specification is substantially the same as that described in Specification 590,694 but the claims differ. Specification 590,696 also is referred to.
Patent GB-1061705-A (GB)
Title: Improvements in or relating to apparatus for feeding caps to containers
Inventor: WYARD WALTER HARVIE
IPC: B65B7/28
Filed: 1965-05-05
Abstract: 1,061,705. Applying caps to containers. METAL BOX CO. Ltd. Feb. 1, 1966 [May 5, 1965], No. 19011/65. Heading B8T. In a container capping machine in which caps 2 are fed by gravity down guides 1, 3, 4 to a plate 7 where they lie one at a time between side guides 9, Fig. 3 (not shown), adjustably secured to the plate, with the lower edges of the caps projecting into the path of the rightto-left movement of containers such as jars &c. 8, the caps are guided on to the jar necks by an arcuate shoe 15 pivoting at 16 about a support on the plate. The guides 1 &c. can be adjusted to accept different sized caps.
Patent GB-355420-A (GB)
Title: An improved helmet box
IPC: B65D43/16
Filed: 1930-06-23
Abstract: 355,420. Boxes for helmets. JONES, W., 31, Mayola Road, Clapton, London. June 23, 1930, No. 19063. [Class 18.] A helmet box is provided with a moulding A round the box on which the rim D of the lid rests when closed. The conical top P has a flange B by which it is secured to the rim D the flange being lined with packing C which seats against the top Q of the box.
Patent GB-726799-A (GB)
Title: Bearings, particularly main and connecting-rod bearings for the crankshafts of internal combustion engines
IPC: F16C9/04
Filed: 1952-07-28
Abstract: 726,799. Bearings. DAIMLER-BENZ AKT.- GES. July 28, 1952 [July 26, 1951], No. 19077/52. Class 12 (1). A main or connecting rod bearing for a crankshaft comprises two shells 14, 15 which are separated from each other in a plane extending longitudinally of the bearing and cast with liner metals 16, 17 respectively. The shell which is stressed less highly, i.e. 16 in the case of a main bearing, is of relatively soft metal such as whitemetal &c., whereas the higher stressed shell is lined with hard metal 17 such as lead-bronze.
Patent GB-190872-A (GB)
Abstract: 190,872. Spencer, C. Nov. 17, 1921. Sand, distributing on wheel tracks.-A sanding device for railway or like vehicles comprises a discharge element communicating with the interior of the container, a cap freely and resiliently supported within the container in spaced relation above the discharge element the resilient support permitting vibratory up and down movement of the cap above the discharge element, and means for creating a suction within the discharge element 11 covered by a cone-shaped cap 24 provided with ribs 27 and guides 26 and supported by springs 25. A sleeve 12 in the discharge pipe forms an ejector, air being admitted into the annular space 13 preferably through an orifice in a removable plug 18. When the ejector is operated, preferably by impulses, the cone 24 vibrates and admits sand to the discharge pipe. An air vent in the annular space 13 may be provided to destroy the vacuum, when the discharge pipe is filled with a column of sand.
Patent GB-715789-A (GB)
Title: Heat-transmission process and apparatus therefor
IPC: F28D13/00
Filed: 1952-07-29
Abstract: 715,789. Steam boilers; heating apparatus. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. July 29, 1952 [July 31, 1951; Oct. 24, 1951], No. 19138/52. Classes 64(2) and 123 (2) A finely divided solid is carried upwards by a gas. stream through a vertical chamber at a speed of at least 5 metres per second, and flows down through another vertical chamber in which it is maintained as a dense fluidized bed by the introduction of a further gas at the base of the second chamber, heat transfer occurring in the two chambers between the solid and its surroundings. In the form shown, sand is carried up through a central tube C by hot gases from a combustion chamber A and, after separation at the top from the hot gases, flows down through an annular chamber between the tube C and a surrounding cylinder B. Air supplied through a pipe M fluidizes the sand in the annular chamber. The sand returns to the central tube through holes G with air blown in through a pipe L. The sand is separated from the hot gases partly by change of direction and partly by a cyclone separator E. The sand transmits the heat absorbed from the hot gases to pipes D through which water to generate steam or substances undergoing an endothermic reaction may flow. Hydrocarbons may be burnt in the chamber A with insufficient air for complete combustion, so as to produce carbon black, which is separated from the hot gases after they have been separated from the sand. The two vertical chambers may be separate. Dimensions are given. Specification' 695.492 is referred to.
Patent GB-1097542-A (GB)
Title: Process for the continuous preparation of vinyl chloride polymers and copolymers
IPC: C08F14/06
Filed: 1965-05-06
Abstract: A process for the continuous preparation of vinyl chloride polymers or copolymers comprises liquefying the monomer, conveying monomer into a polymerization zone in the presence of a catalyst, maintaining the monomer in the liquid state and regulating the supply thereof so as to obtain a substantially constant rate of flow in the polymerization zone, subjecting the monomer to a source of light radiation, collecting and removing from the polymerization zone the reaction mixture consisting essentially of a dispersion of polymer particles in liquid unreacted monomer, separating the polymer particles and returning the liquid to the polymerization zone. Comonomers specified are vinyl acetate, vinylidene chloride and acrylonitrile.  The catalyst may be an organic peroxide or azo compound. The reaction vessel may be a quartz or borosilicate glass tube provided with external mercury vapour lamps, and separation of the reaction mixture may be effected by a rotary drum filter or centrifugal settling tank. Examples describe the polymerization in the presence of light radiation of vinyl chloride containing (1 and 2) lauryl peroxide, and (3) 2,4-dichlorobenzoyl peroxide.
Patent GB-842854-A (GB)
Title: Improvements in or relating to reservoir writing instruments
Inventor: SILVER DERRICK JOHN
IPC: B43K5/04
Filed: 1955-07-01
Abstract: 842,854. Reservoir pens. MENTMORE MANUFACTURING CO. Ltd. Sept. 19, 1956 [July 1, 1955], No. 19177/55. Class 146(3). In a fountain pen having a flexible sac reservoir 1 the means for deforming the sac for filling purposes comprises a liquid disposed in a fluid-tight manner within the pen housing so as to surround at least a part of the sac and to which pressure can be applied to collapse the sac. Pressure is applied to the liquid in the space 12 by means of a piston comprising a washer 8 which bears at its periphery against the internal surface 9 of the barrel 2 in a substantially fluid-tight manner and which is attached to the inner end of a hollow tube 3 which extends as a close sliding fit through one end wall of the barrel 2. A nib 7 and feed-bar 6 are disposed as a push fit within the outer end of the tube and the open end of the sac 1 is secured in a fluid-tight manner over the inner end of the tube. Pressure on the end of the nib 7 causes this piston to compress the liquid in space 12 and thus deform the sac 1. When pressure is released the helical spring 10 returns the piston to the end of the barrel 2, the sac 1 is allowed to resume its undeformed shape and ink is drawn into the reservoir. A suitable liquid is a 5% sodium benzoate solution.
Patent GB-602268-A (GB)
Title: An improved process for the decomposition of phosphates
Inventor: CONSTANT ANTIME
IPC: C05B11/06
Filed: 1945-07-26
Abstract: In the decomposition of calcium phosphates with nitric acid, either alone or in the presence of other acid, e.g. sulphuric acid, to give a mixture of phosphoric acid, calcium nitrate and the calcium salt of the other acid, if present, the reaction is conducted in a medium constituted exclusively by the products resulting from the same treatment applied in the course of a previous reaction to identical materials.  The said products should have at least five times the mass of that of the materials reacted.  The operation is preferably carried out by adding the acid and phosphate continuously to an overflow vat in about one-fifth of the quantity which the vat is capable of treating. An operating temperature of 40 DEG  C., and the use of nitric acid of 70 per cent concentration or more are specified.
Patent GB-1067066-A (GB)
Title: Stabilised photographic silver halide emulsions
IPC: G03C1/34
Filed: 1964-05-08
Abstract: 1,067,66. Stabilized photographic silver halide emulsions. AGFA A. G. May 8, 1964 [May 10, 1963], No. 19303/64. Heading G2C. Light-sensitive photographic silver halide emulsions are stabilized by the presence of a 1 -amino-3-mercapto-1 :3:4 -triazole and a mercury compound which is soluble in water or in a solvent miscible with water and is a salt of mercury with an inorganic acid or with an organic acid, an organic compound of mercury having one carbon-to-mercury covalent bond and one ionic linkage to an acid anion, an organic compound of mercury having two carbon-to-mercury covalent bonds or a molecular compound of a mercuric salt with an amine or a salt of an amine. A stabilizer of the azaindolizine type may also be present. Specified mercury compounds include mercuric bromide, nitrate and acetate, K2Hg(CN)4 K2HgBr4, melamine mercuric chloride, 2-aminobenzthlazole hydrobromide mercuric iodide, and 2:2' -dithienyl mercury, and similar compounds described in U. S. A. Specifications 2,728,665, 2,728, 664 and 2, 728, 663. A list of suitable 1 -amino-5-mercapto-1:3:4-triazoles is given. In examples a silver bromoiodide emulsion is stabilized with 1-methylamino-2-sulphophenyl- 5-mercapto-1 :3:4-triazole, 6-methyl-7-hydroxy- 2:3-diaza-indolizine and either 2-chloromercurithiophene, mercuric chloride or 1-acetoxymercuriphenyl-3:4-diacetoxymercuri-4-methoxy-3-methyl- 3;4- dihydro-5-pyrazolone: The results are compared with the use of these stabilizers alone or in pairs.
Patent GB-660512-A (GB)
Title: Improvements in insecticides
IPC: A01N41/02
Filed: 1949-07-22
Abstract: Di-esters of sulphurous acid are obtained by reacting a chloroalkyl chlorosulphinate in which the chloroalkyl radical contains 2-4 carbon atoms and 1-3 chlorine atoms (no chlorine being attached to the alpha carbon atom) with an aryloxy-alkanol in which the alkylene group contains 2-4 carbon atoms. Preferably at least 1 hydrogen atom is attached to the alpha carbon atom of the chloroalkyl group.  The reaction is preferably carried out in the presence of a proton acceptor such as pyridine, dimethylaniline or trimethylamine and a solvent such as benzene, xylene or solvent naphtha.  The proton acceptor may be omitted if the reaction is carried out under reduced pressure or in the presence of dry air or nitrogen.  The temperature may be 20-50 DEG  C.  Examples show the preparation of 2-chloroethyl 2-(p-chlorophenoxy)-ethyl sulphite, 2-chloroethyl 1-methyl-2-(p-tert.-butyl-phenoxy)-ethyl sulphite, 3-chloropropyl 2-phenoxyethyl sulphite, 2-chloroethyl 3-(p-tert.-butyl-phenoxy)-propyl sulphite and 2 : 2 : 2-trichloroethyl 2-phenoxyethyl sulphite.  Many other compounds are described containing as further chloroalkyl radicals: 2 : 2-dichloroethyl, 2-chloropropyl, 2 : 3-dichloropropyl, 2-chloroisopropyl, 1-chloromethyl - 2 - chloroethyl, 2 : 2 - dichloropropyl, 3 : 3-dichloropropyl, 3 : 3 : 3-trichloropropyl, 2-chlorobutyl, 3-chlorobutyl, 4-chlorobutyl, 2 : 3-dichlorobutyl, 2 : 4-dichlorobutyl, 3 : 4-dichlorobutyl, 1 : 1 - dimethyl - 2 : 2 : 2 - trichloroethyl and 1-methyl-2-chloroethyl groups.  The other esterifying group may be 2-aryloxy-1-ethyl, 3-aryloxy-1- or 2-propyl, 2-aryloxy-1-propyl or 4-aryloxy-1-butyl.  Specified aryloxy groups are phenoxy, monoto penta-chlorophenoxy, p-bromophenoxy, p-fluorophenoxy, cresoxy, p-ethylphenoxy, isopropylphenoxy, p-isobutylphenoxy, o- and p-tert.-butylphenoxy, p-tert.-amylphenoxy, p-octylphenoxy, o- and p-cyclohexylphenoxy, p-methoxyphenoxy, 4-n-propyl-2 : 6 - dimethoxyphenoxy, o- and p-nitrophenoxy, o-chloro-p-nitrophenoxy, o-nitro-p-chlorophenoxy, o-chloro-p-tert.-butylphenoxy, 2 : 6-dichloro-4-tert.-butylphenoxy and a - and b -naphthoxy.  Chloroalkyl chlorosulphinates are obtained by treating with thionyl chloride a chloroalkanol with 2-4 carbon atoms and 1-3 chlorine atoms; ethylene oxide may also be used. Examples show the preparation of 2-chloroethyl, 3-chloropropyl and 2 : 2 : 2-trichloroethyl chlorosulphinates.  Aryloxyalkanols are prepared by reacting a salt of a phenol with an alkylene chlorhydrin or alkylene oxide containing 2-4 carbon atoms.  Examples show the preparation of ethylene glycol mono-phenyl and mono-(p-chlorophenyl) ethers, and propylene glycol and trimethylene glycol mono-(p-tert.-butyl-phenyl) ethers.
Patent GB-1412698-A (GB)
Title: Process for producing conjugated diene polymers
IPC: C08F4/42
Filed: 1973-04-24
Abstract: 1412698 Organolithium catalysts in diene polymerization JAPAN SYNTHETIC RUBBER CO Ltd 24 April 1973 [21 April 1972] 19334/73 Heading C3P Conjugated dienes are polymerized in the presence of an anionic catalyst (a) an organolithium compound and (b) either (i) an aliphatic nitrile of the formula where R is C 1-6  alkyl, or (ii) a mixture of the above nitrile with carbon disulphide, wherein the amount of component (b) is up to 1 mole per gram-atom of carbon-linked lithium in component (a). Alkenyl aromatic comonomers may be present and hydrocarbon solvents, including a C 5 -cracked naphtha fraction, may be employed. In the examples, butadiene is homo- or copolymerized with styrene and isoprene is homopolymerized in the presence of catalysts comprising (a) n- or i-butyl lithium and (b) acetonitrile or butyrnoitrile or a mixture of acetonitrile and carbon disulphide.
Patent GB-576680-A (GB)
Title: Improvements in the manufacture of cyclic aliphatic dihydroxy compounds
IPC: C07C35/06
Filed: 1944-10-09
Abstract: Cyclic saturated aliphatic dihydroxy compounds in which both hydroxyl groups are attached to the ring are prepared by catalytically hydrogenating, preferably in solution in, for example, ethanol, a cyclic saturated aliphatic mono-hydroxy mono-ketone in which the hydroxyl group and the ketonic oxygen atom are both attached to the ring.  In the example, adipoin (cyclohexane-1-ol-2-one) dissolved in methanol is heated under pressure with hydrogen in the presence of nickel supported on kieselguhr, the autoclave being rocked.  The product is filtered and methanol distilled off giving a mixture of cis and trans cyclohexane-1 : 2-diol.  These forms can be separated by, for example, fractional crystallization from benzene.  Adipoin is preferably used in the liquid form which may be obtained from the solid by fusing or digesting with a boiling solvent.  Other catalysts may be used such as Raney nickel or cobalt, and other carriers such as silica gel may be used.  Other cyclic ketone alcohols which may be hydrogenated are stated to be a -hydroxy derivatives of unsubstituted and alkyl substituted cyclic aliphatic ketones such as cyclopentanone, cyclohexanone and cycloheptanone.  Examples are cyclopentane - 1 - ol - 2 - one, 1 - methyl-cyclopentane- 1 - ol - 2 - one, 1 - methyl-cyclopentane - 2 - ol - 3 - one, 1 - methyl - cyclohexane - 3 - ol - 2 - one, 1 - methyl - cyclohexane - 3 - ol - 4 - one, 1 : 4 - di - methyl - cyclohexane - 3 - ol - 2 - one, 1 : 1 : 4 - trimethyl - cycloheptane - 4 - ol - 3 - one.  The ketone alcohols may be prepared from cyclic aliphatic mono - ketones or mono - alcohols by chlorinating or brominating to give a monochlor- or mono-brom-ketone, and then hydrolysing with, for example, a hot solution of a weak alkali, e.g. sodium carbonate.  The use of platinum and palladium as hydrogenation catalysts is mentioned in the Provisional Specification.
Patent GB-638483-A (GB)
Title: Automatic stop and record-changer mechanism for gramophones
IPC: G11B17/02
Filed: 1945-07-30
Abstract: 638,483. Gramophones. MURPHY RADIO, Ltd., and BALEAN, J. H. July 30, 1945, No. 19469. [Class 40 (ii)] A device for controlling automatic stop or record-changing mechanism upon a gramophone comprises a quarry member 8 turning on the same axis as the tone arm 13 and driven from the turn-table spindle at a speed not less than the tone arm during playing, and a hunter member 14 carried by the tone arm, electrical contacts being brought together by the hunter overtaking the quarry to close a circuit to bring the stop or record-changing mechanism into action. This operation occurs when the tone arm arrives at a steeply pitch section of the groove following the playing section. In the arrangement shown, the member 14 first reaches a contact 10 which connects up a magnetic clutch 12 in the quarry drive. When the record reaches the steep pitch section the member 14 moves on to contact 11 and operates a magnetic control 17 for the desired mechanism. An abutment 9 on the quarry causes it to be restored to starting position by the member 14 when the tone arm is restored. Specification 638,481 is referred to.
Patent GB-186205-A (GB)
Title: Improvements in transmission gearing
IPC: F16H29/06
Filed: 1921-07-19
Abstract: 186,205. Pitter, W. C. July 19, 1921. Variable-speed ratchet gearing comprises a number of toggles f, g, Fig. 4, operated in succession by a driving cam or eccentric c. The speed is varied by varying the throw of the eccentric or eccentrics. One toggle arm g has a free end which drives by ratchet action a ring M The other arm f has its end connected by a pivot n to a plate &c. b<3>. If instead of holding the plate b<3> and driving the ring M, the ring M be held fast, the plate b<3> is driven oppositely.
Patent GB-323452-A (GB)
Title: Improvements in and connected with devices for securing the ends of ligatures for tying parcels and for other purposes
IPC: B65D63/14
Filed: 1929-06-25
Abstract: 323,452. Young, H. G. L. June 25, 1929. Cord fastenings.-Fastenings for the securing strings of parcels comprise a base plate to which is riveted a resilient plate with a bent-up periphery or fingers. In one form, Fig. 2, the flat plate 1 has riveted to it a disc 2 with a bent.- up periphery 3; the disc is resiliently held down by the spring fingers 9 of a member 8 secured by the common rivet 4. The string is gripped between the plate 1 and disc 2. In the form shown in Figs. 6 and 8, the disc is replaced by the strip 10 with bent-up ends, and the spring fingers by the dished washers 12, 13.
Patent GB-519770-A (GB)
Title: Improvements in and relating to the manufacture of cement
IPC: C04B7/38
Filed: 1938-07-01
Abstract: 519,770. Cement. RITTER PRODUCTS CORPORATION. July 1, 1938, No. 19558. Convention date, July 3, 1937. Drawings to Specification. [Class 22] . In the treatment of minerals used for the manufacture of cement, finely divided solid mineral material containing calcium carbonate and silica is separated by, the action of an electrostatic field into groups which contain more carbonate and more silica than the original material. If the, material also contains aluminium oxide, a third group containing more aluminium oxide than the original material is also separated at the same time. The group 'containing calcium carbonate is further separated by an electrostatic field into concentrates and middlings containing more and less carbonate than the original group and the middlings may be returned for re-. treatment with the raw material. The material may be subjected to the action of a plurality of electrostatic fields preferably in the apparatus described in Specification 519,817, [Group II]. Before the electrostatic separation, dust may be removed from the finely divided raw material and itself subjected to electrostatic separation. The rejects, from the main separation may be roasted, subjected to magnetic separation and the dust removed therefrom. Some or all of the separated portions of raw material are mixed together in any desired proportion for the production of cement and ground.