baber/WOPTO huggingface dataset:
Patent GB-835647-A (GB)
Title: Improvements in the manufacture of fibres from thermoplastic materials
IPC: C03B37/04
Filed: 1958-01-29
Abstract: 835,647. Spinning glass fibres. MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE SAINT-GOBAIN, CHAUNY & CIREY S. A., DES. Jan. 29, 1958 [March 8, 1957], No. 2944/58. Class 56. Apparatus for spinning fibres from molten thermoplastic materials such as glass wherein the peripheral band of a rotating body 1 and/or the side wall of the distributing device 2 is or are formed of two components in contact with one another, the or each outer component 3 and 7 being of a material resistant to the great heat to which it is subject and the or each inner component 4 and 8 being of a material chemically resistant to the molten material. The outer component may be made of nickelchromium steel or a nickel-chromium alloy, and the inner component of platinum, tungsten, molybdenum, or platinum-rhodium orplatinumnickel. Preferably the openings 5 and 9 respectively in the inner components are of a diameter less than those 6 and 10 in the outer components. The openings 6 may be cylindrical or tapering.
Patent GB-495095-A (GB)
Title: A process for the treatment of sodium sulphate obtained as a byproduct in the manufacture of bichromates
IPC: C01D5/16
Filed: 1937-02-01
Abstract: Sodium sulphate, obtained as a bye-product in the manufacture of bichromates, is dissolved in an aqueous solution, the solution is treated with a reducing agent and the sodium sulphate is crystallized out.  A suitable reducing agent is sulphur dioxide. After reduction, the solution may be rendered alkaline by the addition of sodium carbonate at boiling point whereby the chromium content of the solution precipitates.  The pure solution may then be concentrated in a vacuum concentrator, and the resulting hydrated salt dehydrated in a steam-heated rotary cylinder in which a vacuum has been produced.
Patent GB-641624-A (GB)
Title: Improvements in white pigments
IPC: C09C1/14
Filed: 1948-02-02
Abstract: A white pigment is prepared by the interaction, in the presence of water, between lead sulphate and a carbonate or silicate of barium, calcium or strontium.  Separately produced dispersions of the two constituents, in finely-divided form, may be mixed or the materials may be mixed and ground in the presence of water.  It is preferred to use a basic lead sulphate, particularly one containing a proportion of lead oxide of the same order as the lead hydroxide contained in white lead, while acid, normal or basic calcium silicate may be used. In examples basic lead sulphate is ground with barium carbonate, or strontium carbonate or calcium silicate.
Patent GB-801173-A (GB)
Title: Improvements in or relating to apparatus for separating fine particles from gases
Inventor: TINLEY ERNEST LAMBERT
IPC: B01D47/06
Filed: 1955-02-02
Abstract: 801,173. Washing gases. BIGWOOD & SON, Ltd., J. Feb. 1, 1956 [Feb. 2, 1955], No. 3038/55. Class 55 (2). In a gas washer, a froth chamber 16 is divided above the level of the liquid by a floor 19 which supports a number of conduits formed of vertical plates 21. The bottoms 24 of these plates are notched and dip below the liquid whilst V- section plates 25 cover the open tops and prevent liquid from being carried out with the cleaned gas. As shown in Fig. 1, the gas, entering at 12, is preliminarily scrubbed by the spray drums 14 of Specification 801,172, and passes through spaces 28 at the sides of the chamber 16, to the spaces 29 between the floor 19 and the level of the liquid, and, from thence, under the lower edges of the plates 21 to the upper chamber. The gas outlets 26 are provided with filters if necessary. A scraper convery 19 moves sludge through an airtight tank to the valve 33. A level switch and an adjustable overflow pipe maintain the liquid at a predetermined level. In a modification, the spray drum stage is omitted, and the gas is admitted directly to a central space 28 flanked by froth chambers which discharge into a common gas outlet chamber. The sludge may be removed by a sludge pump towards which the sludge is scraped by a conveyer. Specification 636,120, [Group XXVIII], also is referred to.
Patent GB-1458367-A (GB)
Title: Vinyl chloride polymerisation process
IPC: C08F14/06
Filed: 1974-01-23
Abstract: 1458367 Polymerizing vinyl chloride IMPERIAL CHEMICAL INDUSTRIES Ltd 15 May 1974 [8 June 1973 23 Jan 1974] 27331/73 and 03318/74 Heading C3P In a process for polymerizing vinyl chloride, part of the monomer charge, water, emulsifier and/or suspending agent, and monomer-soluble polymerization initiator are homogenized and mixed with the remainder of the monomer charge before polymerization. Part only of the water, emulsifier or suspending agent need be homogenized.
Patent GB-1041354-A (GB)
Title: Phantom for determining radiation doses
Inventor: BIBERGAL ANOTOLY VICTOROVICH
IPC: A61N5/10
Filed: 1964-01-24
Abstract: 1,041,354. Phantom for determining radiation doses. INSTITUTE BIOLOGICHESKOI FISIKI. Jan. 24, 1964, No. 3122/64. Heading H5R. A phantom for determining radiation doses comprises a bag 1 (Fig. 1) of elastic, watertight material, is filled with a liquid to represent human tissue and provided with belts 13 for imparting required shapes and proportions to the phantom, a radiation indicator 4 mounted at one end of a rod, being introduced into the phantom. For X- and γ-rays of energies above 400 KeV the absorption and scattering capacities of human tissues approach those of water, and a shaped plastic bag filled with water can be used for testing the doses required by. a particular patient. The belts, made of cloth, are tightened to give a representation of the chest, waist &c. of the patient and the volume of the bag is adjusted by pumping water in or out through valves 2. The radiation indicator, which may be an ionization chamber, can be positioned anywhere within the bag by optical (if the bag is transparent) or X-ray (if opaque) centring means. The rod on which it is mounted is introduced into the bag through a pipe 7 (Fig. 3, not shown) mounted on the frame 6 of the universal joint 3. The frame can rotate about an axis AA<SP>1</SP> and the pipe about axis BB<SP>1</SP>. When fixing the rod and indicator in position two stops 8 and 9 and nut 10 are used. A rubber disc around the outside of the joint 3 and a seal, secured by the nut 10 on to the pipe 7, render the joint watertight.
Patent GB-905817-A (GB)
Title: Improvements in the purification of citric acid
IPC: C07C51/47
Filed: 1961-01-26
Abstract: Citric acid is purified of readily carbonisable impurities by heating the mother liquor from a citric acid fermentation process at an elevated temperature with hydrogen peroxide, and subjecting the resultant mixture to treatment with activated charcoal, cationic and anionic exchange resins, and then crystallisation. Preferably the citric acid solution is heated at 80 DEG C. for 1 hour with 10 parts of H2O2 (calculated as 30% hydrogen peroxide) per 100 parts by weight of citric acid, and then at the same temperature 1 part of activated charcoal is added. Thereafter the charcoal is filtered off and the solution passed down a column of both cationic and anionic exchange resins, after which the citric acid is crystallised out.  The purification may be made continuous by mixing the crude citric acid solution with the appropriate amount of hydrogen peroxide, and passing them through a reaction zone, e.g. a stainless steel beaker, maintained at 80 DEG C. and treating the issuing solution as previously described.  Examples are given which also describe similar purifications where the treatment with H2O2 is omitted.  Suitable ion exchanges are those described in Specifications 450,308 and 450,309. Specification 672,178 also is referred to.
Patent GB-289949-A (GB)
Title: Improvements relating to pen and pocket knives and the like
IPC: B26B1/04
Filed: 1927-02-03
Abstract: 289,949. Bennett, H. G. Feb. 3, 1927. Pocket, pen, and like knives. - The blade a of a pocket knife is normally held closed by the engagement with the back of the blade point of a lug j on a catch f pivoted to the front end of the knife, the arrangement being such that, when the catch is turned by means of a lug k to release the blade, a lug h depresses the front end of the blade spring d, which is pivoted centrally, thereby causing the other end of the spring to act on the tang b of the blade so as to open the latter partially. The blade may then be fully opened. The catch may be provided with another lug adapted to be engaged by the point of the blade during the closing movement of the blade, whereby the catch is closed.
Patent GB-582321-A (GB)
Title: Improvements in wire gauze
IPC: D21F1/10
Filed: 1940-02-19
Abstract: 582,321. Wire gauze. FRANCK, R. Feb. 19, 1940, No. 3154. Convention date, Feb. 25, 1939. [Class 142 (iv)] Wire gauze for use in paper making &c. has the alternations of the warp and weft at intervals corresponding to a pattern repeat of four to eight wires ; the Figure shows a gauze with a pattern repeat of four wires.
Patent GB-211142-A (GB)
Title: Improvements in balances
IPC: G01G23/00
Filed: 1924-02-07
Abstract: 211,142. Jouan, P. C. Feb. 8, 1923, [Convention date]. Balances; pendulum-weight apparatus; indicating-mechanism; vibration, preventing and neutralizing.-A balance provided with a goodspan, a weighted balance lever adapted to indicate upon a chart fractions of a certain weight, and a weight-pan adapted to receive weights corresponding to the maximum of the chart or multiples, thereof, is provided at the end of the balance lever with a vernier which registers with an equally divided rectilineal chart. As shown, a goods pan h, Figs. 2 and 4, and weightpan h<1> are suspended from the ends of a beam d pivoted on a central knife-edge f and formed integral with a balance lever d<1> provided with an adjustable weight d<2>. The lower end of the balance lever d' carries an index d<3> adapted to indicate on rectilineal, equally divided charts g, g<1>, one on each side of the frame a. The index may be provided with one vernier, Fig. 9, or with two verniers, Fig. 5, one, for use on each side of the vertical centre line of the chart. The division lines of the vernier are curved or inclined in order that the lengths of the chart g between the intersections of the division lines may be constant or approximately so. Optical means may be provided to facilitate reading. The index is obtained at the zero of the chart for no load' by a weight n attached to the weightpan and corresponding to half the capacity of the chart. The oscillations of the balance lever are checked by a strip of flexible material k which may be brought into contact with the lower end of the index by pressing down the end m of the lever l upon which the strip is mounted. A projection l<2> on the lever l is adapted to contact with an adjustable stop l' and arrest the strip k in the required position. Rods h<2> projecting from the scale-pans pass through holes in plates i freely mounted on supports j, and serve to damp the movements of the pans. In a modification the index is carried by an arm projecting at an angles from the beam and the chart is correspondingly arranged. The invention may be applied to a Roberval or other type of balance.
Patent GB-189691-A (GB)
Title: Improvements in ball float valves
IPC: F16K31/26
Filed: 1922-02-06
Abstract: 189,691. Collinge, W., and Collinge, J. Feb. 6, 1922. Stops, adjustable.-The opening movement of a ball float valve d is limited by an adjustable screwed plug f which is held in its adjusted position by a spring g.
Patent GB-908684-A (GB)
Title: An improved shuttlecock and skirt structure therefor
Inventor: CARLTON WILLIAM CHARLES
IPC: A63B67/18
Filed: 1958-02-03
Abstract: 908,684. Shuttlecocks. CARLTON TYRE SAVING CO. Ltd. Jan. 30, 1959 [Feb. 3, 1958], No. 3431/58. Class 132 (3). A one-piece moulded shuttlecock skirt has in its upper region E not less than 7 and not more than 25 stems whose average depth in this region is at least twice and not more than eight times their average width in the same region. Depth is measured in the direction J, Fig. 3, and width in the direction K. There are large air spaces H between the stems and the side surfaces of the stems are directly exposed to air flow through these spaces. The stems are attached at their lower end to a tube M constituting part of an end ring. The lower region C of the skirt constitutes the vane area and occupies not less than 30% and not more than 70% of the total skirt length. The stems may taper both in depth and width and may be arranged so that the centre line through their depth is radial, Fig. 3. Alternatively, this centre line may be inclined to a radius, Fig. 9, to cause or control spin in flight. Alternatively or additionally, spin may be caused or controlled by laying back the stems, Fig. 10, so that the projection of the centre line along the outside surface of a stem does not pass through any point on the main axis of the shuttlecock but passes through a circle generated from the main axis of the shuttlecock in a plane perpendicular to that axis. As shown in Fig. 1, widely spaced rings P may be provided which extend right round the shuttlecock. The striking cap may be of kid covered cork. Specifications 670,147, 686,403, 724,673 and 887,172 are referred to.
Patent GB-1196230-A (GB)
Title: Measuring Apparatus for Use with an Electric Motor
Inventor: THOMAS ALAN JOHN
IPC: G01P3/46
Filed: 1967-08-24
Abstract: 1,196,230. Measuring speed electrically. ROLLS-ROYCE Ltd. Aug. 24, 1967, No.3451/70. Divided out of 1, 194, 379. Heading G1N. The linear speed of a point at a selected radius on a rotating body is indicated on a meter 24 connected to an operational amplifier 22 of the negative feedback type whose gain is adjusted according to the selected radius and to the input of which is applied a signal corresponding to the rotaional speed of the body (from a tachogenerator). The gain is varied by feedback resister Rf and there is a first unity gain amplifier 20 to which the tachogenerator signal Vin is supplied via range selecting resistors R1, R2, R3. RL is a load resister. The body maybe a workpiece on which an arcuate weld is made at the selected radius by an electron beam welding head.
Patent GB-956274-A (GB)
Title: Improvements in or relating to the preparation of steroid compounds
Inventor: PHILLIPPS GORDON HANLEY
IPC: C07J71/00
Filed: 1959-07-20
Abstract: The invention comprises steroids of the formula: <FORM:0956274/C2/1> (wherein R is hydrogen atom or an acyl group, X is a keto, acyloxy or hydroxy group or a halogen atom, and Y is a hydrogen or halogen atom or X and Y together signify a D 9(11)-double bond) and their preparation by epoxidation of the corresponding D 16-steroids with hydrogen peroxide under alkaline conditions. Products wherein Y is a halogen atom and X is a halogen atom or a hydroxy or acyloxy group may be prepared by epoxidizing a corresponding D 9(11), 16-steroid and subsequently reacting with halogen, an acyl halide or a hypohalous acid. Examples are given.  Specifications 805,497, 956,272 and 956,273 also are referred to.
Patent GB-1139243-A (GB)
Title: A sewage treatment tank
IPC: B01D21/06
Filed: 1966-01-26
Abstract: 1,139,243. Settling tank, UNION TANK CAR CO. 26 Jan., 1966 [23 Feb., 1965], No. 3498/66. Heading B1D. A sewage settling tank with a slightly conical' floor, directing sludge to a peripheral trough, and an upper peripheral overflow for liquid; has a rotating radial bridge from which are suspended radially overlapping scraper units (72) engaging the floor. Each unit is susponded by a vertical pipe 71 Fig. 4 whose upper end is welded to a shear pin 112 received in vertical slots 111 in lugs 110 carried by stanchions 57 on the forward side of the bridge, and pins 112 shear if the unit encounters sufficient resistance, allowing pipe 71 to pivot clockwise with the common mounting bracket (127) of a pair of pipe rollers (130), 136 between which pipe 71 extends. Roller 136 is spring loaded (Fig. 5, not shown). Unit (72) comprises a blade oriented at 45 degrees to the bridge (Figs. 2, 6, not shown) and mounted on a bracket 76, which is attached to pipe 71 by a bolt 90 which passes through a rubber grommet 93 in an aperture of bracket 76 and through a vertical slot 105 in a brace 79 of the bracket (Fig. 7). This connection enables scraper unit (72) to pivot somewhat on pipe 71 when it meets small obstructions and irregularities. The tank is concrete, the bridge is rotated by electric motor (22) (Pig. 1, not shown). Handle 116 enables pipe 71 to be lifted to clear pin 112 from slots 111, whereafter pipe 71 can be twisted through 90 degrees and pivoted (dotted lines, Fig. 4) for maintenance of the scraper unit. The sludge trough could be in the centre of the tank, with the floor sloping downwards from the periphery.
Patent GB-1423344-A (GB)
Title: Hoist
IPC: B66C23/48
Filed: 1972-01-26
Abstract: 1423344 Luffing arm apparatus G H WEBB 12 Jan 1973 [26 Jan 1972] 3592/72 Heading B8H A portable hoist comprises a vertical pillar 1 mounted on a cross-member 5 extending between a pair of splayed legs 3 and pivotally supporting a boom 2 intermediate its ends. A screw and nut mechanism 8, 9 extends between one end of the boom and the base of the pillar to effect luffing movement of the boom and a lifting lug 18 is secured to the other end. The pillar is pivotally mounted to the legs 3 and is retained in a vertical position by a pin 7 engaging aligned holes in the pillar and a pair of plates 6. The pin also-secures the screw and nut mechanism to the pillar, such that its withdrawal enables the pillar and the boom to be pivoted into a collapsed position. (For Figure see next page.)
Patent GB-118392-A (GB)
Title: Improvements in Dynamo Electric Machinery.
Inventor: BURLEIGH JOHN WESLEY
IPC: H02K9/18
Filed: 1918-03-02
Abstract: 118,392. Burleigh, J. W. March 2, 1918. Straight-tube apparatus.-The air contained within a totally-enclosed dynamo-electric machine is circulated by means of a fan 17, Fig. 1, through a thin metal radiator 18 surrounded by a cover or casing 22 through which cooling air or water is forced by means of a fan 25 or pump. Annular frame-members 7, 14 supporting the radiator are mounted on turned seatings 4, 11 on the end bearing-brackets 1, 9 so that the radiator may be adjustable circumferentially. A zigzag path is formed through-the radiator 18 by the use of hollow walls 21 which are preferably in connexion with the atmosphere at their upper and lower ends and also at the ends connected with the side. walls. The radiator is secured to the framemembers 7, 14, 30 by means of flanges thereon and plates 27, 28, 31, 32. The hollow walls 21 may be of V or triangular cross-section.
Patent GB-720584-A (GB)
Title: 5-benzyloxy-ª,2-dinitrostyrenes and a process for their preparation
Filed: 1953-02-10
Abstract: The invention comprises 5-benzyloxy-b ,2-dinitrostyrenes having the general formula <FORM:0720584/IV (b)/1> in which X is phenyl, halophenyl, lower alkylphenyl or lower alkoxyphenyl, Y is hydrogen, phenyl, halophenyl, lower alkylphenyl or lower alkoxyphenyl and R is hydrogen or lower alkyl.  The compounds are prepared by treating a 5-benzyloxy - 2 - nitro - a  - (1 - nitroalkyl - 1) benzyl alcohol of the formula <FORM:0720584/IV (b)/2> with a dehydrating agent, e.g. acetic anhydride with or without an alkali metal salt; potassium acid sulphate, oxalic acid, phthalic anhydride and phosphorus pentoxide and pyridine.  The starting material may be prepared by the condensation of a 5-benzyloxy-2-nitrobenzaldehyde with a 1-nitroalkane in the presence of an alkali metal hydroxide.  In examples (1) and (2) 5 - benzyloxy - 2 - nitro - a  - nitromethylbenzyl alcohol (prepared by condensing 5-benzyloxy-2-nitrobenzaldehyde with nitromethane in the presence of potassium hydroxide and aqueous alcohol) is heated with anhydrous sodium acetate and acetic anhydride to yield 5-benzyloxy - b ,2 - dinitrostyrene; (3) 5 - benzyloxy - b ,2 - dinitro - b  - methylstyrene is prepared similarly from 5 - benzyloxy - 2 - nitro - a  - (1 - nitroethyl - 1) benzyl alcohol using acetic anhydride as dehydrating agent; (4) 5-benzyloxy - b ,2 - dinitro - b  - ethylstyrene is prepared from 5 - benzyloxy - 2 - nitro - 2 - (1 - nitro - propyl - 1) benzyl alcohol using oxalic acid as dehydrating agent; (5) 5-(p,p1-dimethoxybenzhydryloxy) - b , 2 - dinitrostyrene is prepared by dehydrating 5 - (p,p1 - dimethoxybenzydryloxy) - 2 - nitro - a  - nitromethylbenzyl alcohol; (6) 5 - benzhydryloxy - b ,2 - dinitrostyrene is prepared by dehydrating 5-benzhydryloxy-2-nitro - a  - nitromethylbenzyl alcohol; (7) 5 - (p,p1 - dimethylbenzhydryloxy) - b ,2 - dinitrostyrene is prepared from 5 -(p,p - dimethylbenzhydryloxy) - 2 - nitro - a  - nitromethylbenzyl alcohol; and (8) 5 - (p,p1 - dichlorobenzhydryloxy) - b ,2 - dinitrostyrene is prepared by dehydrating 5 - (p,p1 - dichlorobenzhydryloxy) 2 - nitro - a  - nitromethylbenzyl alcohol with phthalic anhydride.  Many other substituted 5-benzyloxy-b ,2-dinitrostyrenes of the above general formula are specified. p
Patent GB-1530031-A (GB)
Title: Charged particle beam scanning device
IPC: H04N5/68
Filed: 1976-01-30
Abstract: 1530031 Cathode ray tubes; ion beam apparatus TEXAS INSTRUMENTS Inc 30 Jan 1976 [5 Feb 1975] 03762/76 Heading H1D A charged particle beam (e.g. of electrons or positive or negative ions) scanning device comprises a charged particle source 16, an extended area target 14, at least one input buffer plate 19, 20 and at least one output buffer plate 50 sandwiching control plates 25- 30 all with aligned apertures, the control plates each having a plurality of electrodes 25a, 25b- 30a, 30b, on at least one surface, spacers 33 and thicker spacers 35, 35<SP>1</SP> between buffer and control plates to isolate the control plates from the high voltages applied to the buffer plates and to allow the control plates to be operated with low voltage swings, D.C. potentials to the buffer plates providing focusing and selectively applied potentials to the control plate electrodes selectively directing particles to the target. The high voltages applied to the buffer plates also negate charging due to secondary emission. Fig. 4 (not shown) includes a multi-filament cathode adjacent interdigitated electrodes (65), (67) one of which may be segmented to provide an additional scanning control of electron emission from the filaments, as described w.r.t. Figs. 5 to 8 (not shown). An elongated source may alternatively provide negative or positive ions. Component materials, dimensions, voltages and operation are detailed.