baber/WOPTO huggingface dataset:
Patent GB-231826-A (GB)
Title: Improvement in formation of coloured smoke and composition therefor
IPC: C06D3/00
Filed: 1924-11-05
Abstract: 231,826. Savage, J. C. April 3, 1924, [Convention date]. Smoke-producing weapons.-Coloured smoke for sky-writing is produced from material which requires to be heated by the engine exhaust gases or by steam or the like, but is such that none of the colouring material is wasted by combustion. The resulting smoke comprises a base smoke coloured by fine particles into which the vaporized colouring material condenses on discharge into the atmosphere. A material for producing red smoke comprises 10 lbs. of orange oil soluble aniline dye, 1 gal. of light mineral lubricating oil, and 1 pint of tetrachlorethane or carbon tetrachloride; the oil provides the base smoke and the dye provides the red colour. For green smoke the orange oil soluble aniline dye is mixed with synthetic indigo, the other ingredients remaining as before. Iodine is included for purple smoke. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of anthracene instead of aniline dye for the production of black or dark grey smoke. It also refers to the use of lactose and potassium chlorate as undesirable. This subject-matter does not appear in the Specification as accepted.
Patent GB-534983-A (GB)
Title: Improvements in or relating to the concentration of metalliferous ores by flotation
IPC: B03D1/012
Filed: 1939-09-22
Abstract: 534,983. Concentrating ores. MINERALS SEPARATION. Ltd. Sept. 22, 1939, No. 26469. Convention date, Sept. 24, 1938. [Class 82 (ii)] A flotation agent for the concentration of metalliferous ores comprises one or more organic compounds of the thiophane series having the general formula Cn H .n S. The organic compound may have an alkyl group attached to the ring of sulphur and carbon atoms and may be mixed with liquefied hydrocarbons derived from or occurring in petroleum ores or used with other reagents used in flotation processes such as frothers, pH regulators on depressors. Examples of the treatment of copper lead and zinc ores with tetramethylene sulphides pentamethylene sulphide or alpha methyl pentamethylene sulphide with or without additions such as pine oil, cresylic acid and copper sulphate are referred to.
Patent GB-778063-A (GB)
Title: Process and installation for the production of naphthalene
IPC: C07C7/14
Filed: 1953-09-25
Abstract: Purified naphthalene is produced from a naphthalene-containing oil by cooling below 60 DEG  C., separating the crystallized impure naphthalene so produced from the mother liquor and passing it in lumpy form through a press in which it is subjected to a progressively increasing pressure to form a thin layer with continuous relative movement of the particles whilst the oil thus separated from the naphthalene escapes through apertures in the walls of the press.  The preferred form of press is a worm press, but an extruding press may also be employed.  The temperature may be regulated by means of a cooling or heating device housed in the worm shaft and/or casing of the press.  The cooling of the naphthalene-containing oil may be effected by means of a cooling cylinder, cooling drums, cooling worms, mechanical agitating means or endless cooling belts, and the main quantity of mother liquor is removed from the crystallized naphthalene by filtering, centrifuging or by means of a vibrating sieve.  The product is delivered from the press in small lumps which require no further treatment.  In a modification of the process, "pre-purified naphthalene" is recrystallized from a solvent such as benzene or its homologues, or treated with a solvent such as methanol, or other alcohols, ketones or esters which selectively dissolve the impurities, or treated with both types of solvent, the treated naphthalene being then subjected to progressively increasing pressure, e.g. in a worm press, as previously described.  The term "pre-purified naphthalene" meaning naphthalene which has been partly purified (a) by filtering off crystallized naphthalene from a cooled naphthalene oil fraction; (b) by treatment in a press as previously described; or (c) by treatment in a static press.  The raw napthalene may be obtained from any source such as the condensate obtained by cooling coke over gas or from tar oil.  A suitable form of apparatus is described which comprises a cooling drum continuously feeding the hopper of a worm press into the shaft of which extend two pipes for the entry and exit of liquid or gaseous cooling or heating means, and which has a perforated casing to allow the pressed-out oil or solvent to escape. The pressed naphthalene is fed via a trough on to a conveyer belt for further use.  (For details see Group I.)  In examples: (1) to (3) a naphthalene oil fraction is cooled to obtain impure crystallized naphthalene which is passed through a worm press to raise the melting point to above 79 DEG  C.; (4) a solid naphthalene obtained by cooling a naphthalene oil fraction is treated in a worm press, recrystallized from a mixture of benzene, methanol and water and again pressed in a worm press; (5) a solid naphthalene obtained by cooling a naphthalene-containing coal tar fraction is recrystallized from toluol and pressed in a worm press; (6) a solid naphthalene obtained from the condensate of an indirect gas cooler is treated with a small amount of methyl alcohol and then pressed in a worm press.
Patent GB-913538-A (GB)
Title: Improvements in or relating to a machine for removing the ends of vegetables
Inventor: PARSONS LESLIE ARTHUR
IPC: A23N15/08
Filed: 1960-07-29
Abstract: 913,538. Topping and tailing machines. PARSONS & SONS Ltd., LESLIE A. July 20, 1961 [July 29, 1960], No. 26495/60. Class 28 (2). A conveyer belt 1 has sets of vegetable holding members, each set comprising four inclined arms arranged in pairs 4 on opposite sides of the belt for carrying the vegetables for topping and tailing past circular knives (Fig. 3, not shown) parallel to and outside the arms 4. The arms may be stepped as shown to accommodate various sizes, and the angle of inclination from the normal to the belt may be between 5 and 30 (preferably 10) degrees. A vibrating shoot may be used to put the vegetables on the conveyer.
Patent GB-1032562-A (GB)
Title: Improvements in beam balances
IPC: G01G21/00
Filed: 1963-07-04
Abstract: 1,032,562. Viscous dampers. SCIENTIFIC INSTRUMENTS (GLASGOW) Ltd., and C. H. DREWELL. June 29, 1964 [July 4, 1963], No. 26502/63. Heading F2S. [Also in Division G1] A beam balance comprising a beam 11 mounted by a knife edge 12 on a support column 10 is provided with a damping device which consists of a non-rotatable cylindrical member 19 (Fig. 2, not shown) laterally projecting from the column 10 and surrounded by a rotatable barrel 20 containing viscous fluid, the damping device being provided with an upwardly extending arm 22 attached to the barrel arranged in such a way with a U-shaped limb 15 of a transverse member 13 mounted on the beam that only large oscillations of the beam are sufficient to operate the device since only then is the motion of the beam transferred to the arm whose consequential movement is restrained by the viscous fluid. The transverse member 13 supports a pointer 14 and may be provided with a slotted end 23 (Fig. 3, not shown) instead of a U-shaped limb 15. The damping device is mounted by a support screw 16 (Fig. 2, not shown) on the column 10 and is provided with an outer cylindrical body 17.
Patent GB-685799-A (GB)
Title: Improvements in vacuum-actuated sheet-detecting apparatus for printing machines
IPC: B65H7/02
Filed: 1950-10-31
Abstract: 685,799. Travelling - cylinder printing machines; feeding sheets. MIEHLE PRINTING PRESS & MANUFACTURING CO. Oct. 31, 1950, No. 26514/50. Classes 100 (i) and 100 (ii). A printing press of the kind having a rotary, reciprocating impression cylinder, sheet register guides on said cylinder for registering sheets, vacuum-actuated sheet-detecting elements associated with said guides and operable to detect the faulty lay of a sheet at, or the absence of a sheet from said guides, and a vacuum source remote from said cylinder for actuating said elements, is characterized by the provision of substantially stationary coupling means which effect momentary connection between the vacuum source and said elements each time the cylinder reaches a predetermined position in its cycle of operation. As applied to a vertical printing press which comprises a type bed 17 vertically reciprocable by connecting rods 19 and cranks 21, the impression cylinder 23 is rotatably mounted in arms 24 of a frame 26 reciprocated vertically by racks 27 secured to the frame 26 and engaging gears 12 driven by racks 14 carried by brackets 16 supporting the type bed 17. The cylinder is rotated during its upward. or impression stroke and locked during its return stroke. Faulty sheet-feed control devices.-Sheets to be printed are transferred to the cylinder 23 while it is stationary at the bottom of its stroke, vacuum ports 28 being provided in the cylinder 23 for detecting the presence and correct registration of a sheet, the absence of a sheet causing, for example, the tripping of the cylinder 23. A vacuum shoe 31 connects the parts to a vacuum pump 29 so as to provide a sealed connection between a ground face 36 of the shoe and the end face of the cylinder journal when vacuum is applied to the ports. The shoe 31 is supported on a guard 32 by flat spring 33, one end of the spring being secured to the guard by means of screws 34, thus permitting movement of the shoe away from the end face of the journal 44 of the cylinder. The journal 44 has a bore 43 communicating with a chamber 45 leading to the ports 28, while the movement of the shoe 31 is limited by an adjustable screw 46 passing freely through the guard 32, but screwed into the shoe. The top edge of the shoe is bevelled as at 48 for engagement with end face of the journal which presses the shoe into operative position against the action of the spring 33 as the cylinder moves downward.
Patent GB-753111-A (GB)
Title: Improvements in or relating to parquetry elements
IPC: E04F15/04
Filed: 1954-09-14
Abstract: 753,111. Flooring blocks. WEBER, A. Sept. 14, 1954 [Sept. 22, 1953; Nov. 4, 1953], No. 26541/54. Class 87(1). A composite flooring block comprises parquet boards 1 secured to a backing B of spaced wood strips 2 between which is agglomerated fibre 3. The block may be provided with a further backing of wood strips and fibre, an insulating board, or two wood strips adjacent two opposite edges. The board may be formed with one or two peripheral grooves 4. The backing may be slightly tapered towards its rear face.
Patent GB-1022219-A (GB)
Title: An electrical capacitor
IPC: C08G63/195
Filed: 1964-06-26
Abstract: A capacitor comprises a pair of electrodes separated by a dielectric comprising a phthalate polyester of a bis-hydroxyphenyl-alkane(bis-phenol) wherein the alkane group contains 1 to 5 carbon atoms and the phthalate radical contains 50-100 mole per cent isophthalate and 50-0 mole per cent terephthalate radicals.  The bisphenols may be of structure <FORM:1022219/C3/1> where n is an integer 0, 1, 2; R1 is a lower alkyl radical of 1 to 8 carbon atoms and R is a divalent saturated aliphatic group, i.e. alkylene or alkalidene of 1 to 5 carbon atoms. R1 may be methyl, ethyl, propyl, isopropyl, butyl, secondary butyl, tertiary butyl, isomeric hexyl, heptyl, octyl etc., while R may be methylene, ethylene, ethylidene, propylene, propylidene, isopropylidene, 1,4-butylene, 1,3-butylene, 2,3-butylene, 2-methyl propylidene, 2,2-butylidene, 1,2-, 1,3-, or 2,4-pentylene, 1,1-, 2,2-, 3,3-pentylidene, and isopentylidenes, e.g. diethyl methylene, methyl propyl methylene, and the like.  The hydroxyl group may be in the ortho, meta or para position.  The polyesters are preferably synthesized either by esterification of the bisphenol as its preformed lower alkyl monocarboxylic acid esters, e.g. the diacetate of the bisphenol, or by esterification in situ by using the anhydride of the lower alkyl monocarboxylic acid.  The alkyl esters of the bisphenol are reacted with isophthalic acid which may contain up to 10 mole per cent of terephthalic acid; with a solvent of, e.g. diphenyl, diphenyl ether, naphthalene, or their halogenated or hydrogenated derivatives. The reaction is carried out preferably at the reflux temperature of the mixture, so that the polymer is not precipitated, in an inert atmosphere of, e.g. nitrogen until no more of the lower alkyl monocarboxylic acid, which is initially esterified with the bisphenol, is expelled and until the desired viscosity is attained, after which the mixture is cooled to a temperature at which it is homogeneous, and a solvent, e.g. o,m,p-cresol; mixed cresylic acids, dimethyl acetamide, benzonitrile, N-methyl pyrrolidone and the like is added to give a final composition containing 15-20% resin solids.  The films of dielectric may have metallized conducting layers coated thereon or be coated on metal foils; or glass, asbestos or textile cloth may be impregnated or coated therewith and used as dielectric.  The polyester may be co-esterified with a diphenolic acid to the extent of 1 to 10 mole per cent to improve the thermal properties, or may be cross-linked by exposure to radiation. Specific examples of the preparation of particular bisphenols are set forth.
Patent GB-271325-A (GB)
Title: An improved hydraulic shock absorber for motor vehicles
IPC: F16F9/14
Filed: 1926-10-26
Abstract: 271,325. Mason. W. P., and Spencer, N. S. Oct. 26, 1926. Fluid-friction vibration-dampers.-In apparatus in which an oscillating radial vane 10 fixed to a spindle 8 moves in a circular casing 1 having a fixed partition or abutment 19, the radial vane is fitted with a flexible packing member 11 and the partition is provided with a large and a small passage connecting the two chambers 30, 31 into which the casing is thus divided. A short arm is fixed to a lug 4 on the casing and a longer arm to the spindle 8, these two arms being then connected to the frame and the axle of the vehicle. The effective area of the small passage 20 is varied by a screw 22, while the large passage 23 is fitted with a regulating-screw 27 and a oneway ball valve 24. The spindle 8 passes through a stuffing-box 12, 13 in the casing and an adjustable screw 6 is carried in the cover 2 and positions the spindle 8 endwise. Alternative constructions of the casing are shown.
Patent GB-689212-A (GB)
Title: Licking appliances for feeding animals
IPC: A01K5/015
Filed: 1950-11-03
Abstract: 689,212. Feeding appliances for animals. KUCHENMEISTER, H. J. Nov. 3, 1950 No. 26885/50. Class 5(ii) A licking device, for supplying grazing animals with doses of food-supplementing liquid or paste-like substances such as vitamins, comprises a roller, ball or endlessband device, supported for movement relatively to a container, so as to be coated automatically with the substance as licking proceeds. Fig. 2.shows a licking roller 2 supported for rotation over a liquid container 1 provided with scrapers 3, 4. Figs. 3, 7 show alternative forms of rotatable licking members. A plurality of such members of ball shape may be combined as shown in Fig. 8, or the ball or cylinder may comprise independently rotatable sections 19, Fig. 7. The container for a liquid may be automatically replenished from a superposed tank 8, Fig. 9, two forms of which are shown. The supply of liquid may be controlled by the licks of the animal. Solid substances may be supplied to a liquid container by tablets 25, Fig 12, fed from a magazine 23. The device may be associated with the usual automatic animal-watering devices. The supplementing substance in paste form may be supplied by a pad 53, Fig. 16, pressed against a roller 51 by a spring 52a. The ball or cylinder may be hollow to contain a vegetable protruding through perforations to entice the animal to commence licking.
Patent GB-1214269-A (GB)
Title: Chlorosulphonyl vinylisocyanates and a process for their production
Inventor: ARLT DIETER
IPC: C07C309/80
Filed: 1969-05-28
Abstract: 1,214,269. Chlorosulphonyl vinyl isocyanates. FARBENFABRIKEN BAYER A.G. 28 May, 1969 [6 June, 1968], No. 26890/69. Heading C2C. Novel compounds of formula ClSO 2 C(R 1 )= C(R)NCO, in which each of R and R 1  is a hydrogen or halogen atom, or a C 1-20  alkyl, C 2-6  alkenyl, C 6-20  aryl or C 7-12  aralkyl radical optionally substituted by a C 1-4  alkyl, halogen, nitro, alkoxy, C 1-4  alkylsulphonyl, C 6-9  arylsulphonyl, C 1-4  alkylcarbonyl, C 6-9  arylcarbonyl, chlorosulphonyl or chlorocarbonyl group, or R and R 1 , with the carbon atoms to which they are attached, from an alicyclic ring, are prepared by reaction of a halosulphonic acid with an isocyanide dichloride of formula R 1 CH 2 CXRNCCl 2  or CHR 1 =CR NCCl 2  wherein X is a halogen atom.
Patent GB-869096-A (GB)
Title: Improved polyether compositions
Inventor: JEFFERS FRANCIS GEORGE
IPC: C08K5/13
Filed: 1958-08-21
Abstract: Polyethers are stabilized against oxidation by incorporating a 2-a -alkylcycloalkyl-4, 6-dimethylphenol or a bis-(2-hydroxy-3-a -alkylcycloalkyl5-methylphenyl) methane wherein the alkyl group has not more than 4 carbon atoms and the cycloalkyl group is cyclopentyl, methyl cyclopentyl, cyclohexyl or methylcyclohexyl.  These anti-oxidants, which are described in Specifications 723,838 and 728,290, may also be used in the form of their salts, e.g. normal or basic aluminium, barium, calcium, magnesium or zinc salts. Polyethers which may be stabilized include hydroxyl-ended polymers and copolymers of cyclic ethers, e.g. ethylene and propylene oxides, epichlorhydrin, oxacyclobutane, substituted oxacyclobutane, and terahydrofuran (c.f. Specification 733,624).  Small proportions (less than 5% molar) of polyfunctional reagents may be copolymerized, e.g. glycidol, glycerol, trimethylolpropane and 3-hydroxymethyloxacyclobutane.  The antioxidant may be used in proportions up to 5% by weight of polyether and may be added to the reaction mixture (particularly when polymerizing tetrahydrofuran) or to the preformed polymer.ALSO:Polyethers are stabilised against oxidation by incorporating a 2-a -alkylcycloalkyl-4,6-dimethyl phenol or a bis-(2-hydroxy-3-a -alkylcycloalkyl-5-methyl phenyl) methane wherein the alkyl group has not more than 4 carbon atoms and the cycloalkyl group is cyclopentyl, methyl cyclopentyl, cyclohexyl or methylcyclohexyl.  These anti-oxidants, which are described in Specifications 723,838 and 728,290, may also be used in the form of their salts, e.g. normal or basic aluminium, barium, calcium, magnesium or zinc salts.  Polyethers which may be stabilised include hydroxyl-ended polymers and copolymers of cyclic ethers, e.g. ethylene and propylene oxides, epichlorhydrin, oxacyclobutane, substituted oxacyclobutane, and tetrahydrofuran (c.f. Specification 733,624).  Small proportions (less than 5% molar) of polyfunctional reagents may be copolymerised, e.g. glycidol, glycerol, trimethylolpropane and 3-hydroxymethyloxacyclobutane.  The antioxidant may be used in proportions up to 5% by weight of polyether and may be added to the reaction mixture (particularly when polymerising tetrahydrofuran) or to the performed polymer.
Patent GB-775413-A (GB)
Title: Improvements in or relating to loom pickers
IPC: D03D49/36
Filed: 1955-09-21
Abstract: 775,413. Pickers for looms. GREENWOOD, W. Sept. 21, 1955, No. 26932/55. Class 142 (2). An insert for the picker of an overpick or an underpick loom has angular rear faces 12, 13 engaging corresponding faces in the picker body. The insert is of leather or reinforced rubber and has two integral side members secured by side plates 21 and square headed rivets 20 to the body of the picker. In an overpick loom the picker body is a casting and nylon bushes 22 are screwed into the body part, and a projection 25 having a synthetic plastic foot 26 is provided. In an underpick loom, the picking stick forms the picker body.
Patent GB-1036389-A (GB)
Title: Production of 4-bromo-3-hydroxyquinophthalone
Inventor: SCHOELLIG ALFRED
IPC: C09B25/00
Filed: 1965-06-25
Abstract: 4 - Bromo - 3 - hydroxyquinophthalone is obtained when a melt containing 3-hydroxyquinophthalone (obtained by condensation of 3-hydroxyquinaldine or its -4-carboxylic acid with an excess of phthalic anhydride) is cooled to 150-180 DEG C. and liquid Br2 is added.  The temperature is preferably 150-160 DEG C. and the bromine may be slowly added to the surface of the melt while stirring. Examples are given.
Patent GB-282191-A (GB)
Title: Improved signalling apparatus for road vehicles
IPC: B60Q1/34
Filed: 1926-10-28
Abstract: 282,191. Pordage, A. Oct. 28, 1926. Road-traffic signals on vehicles.-A direction indicating semaphore 26 is secured to a spindle 23 by pins 25 on a disc 24, and is actuated by a train of toothed gears arranged in a casing 5 which is clamped by screws 21 to the windscreen of the vehicle. The gear casing is closed by plates 10, 11, and carries the bearing sleeve 22 for the spindle 23. The actuating crank 13 on the spindle of the first gear has a catch 16 adapted to engage positioning notches in a disc.
Patent GB-176752-A (GB)
Title: A new or improved bread and process for making same
IPC: A21D2/36
Filed: 1921-10-12
Abstract: 176,752. Graham, R. March 7, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Bread.-Soya-bean flour is used in making bread, the unpleasant characteristics being. removed by baking a dough mixture of Soya-bean flour and bread materials in company with starchdecomposing and more especially diastatic additions. The enzymatic auxiliary substances may be added during the crushing of the beans or when the dough is being prepared, use being made, for example, of bran, malted grain, diastatic malt extracts; or the suspension derived from flour of malted materials treated with warm or cold water and allowed to stand for several hours in a cool room. Owing to the acid reaction of the crushed bean, the flour is desirably neutralized, before mixing it with the enzymatic auxiliary substances, with an alkali, such as 1.5 per cent of bicarbonate of soda. The Soya-bean flour may be formed into an emulsion by dissolving it in weakly alkaline boiling water,. the emulsion being, if desired, freed from undissolved particles and mixed with the other ingredients. The dark brown bread produced is stated to resemble, according to the selection of materials, ginger bread or ordinary rye bread, and it has long keeping qualities and is easily digestible. Examples of suitable proportions of the various ingredients are mentioned.