baber/WOPTO huggingface dataset:
Patent GB-744614-A (GB)
Title: Improvements in radial clamping elements
IPC: F16B21/20
Filed: 1953-02-20
Abstract: 744,614. Springs. RINGSPANN-GES. Feb. 20, 1953 [Feb. 20, 1952]. No. 4769/53. Class 108 (3). [Also in Groups XXIV and XXV] In an element for clamping a shaft 6 with respect to a cylindrical housing 7 in the form of an annular dished sheet-metal body having slots 16, 17 extending radially from the inner and outer periphery, the width of the slots 17 decreases in a radially inwards direction, and the outside peripheral segments and the corresponding inside segments connecting the spokes have rectangular surfaces 21, 22 for bearing on the shaft 6 and housing 7. Thus any two spokes 13, 13<SP>1</SP> bounding a slot 17 form a triangular joint with the housing 7. The spokes 13, 13<SP>1</SP> need not be parallel (Fig. 4, not shown).
Patent GB-1482842-A (GB)
Title: Nematic liquid crystal material
IPC: C09K19/46
Filed: 1975-02-05
Abstract: 1482842 Liquid crystal compositions SUWA SEIKOSHA KK 5 Feb 1975 [14 March 1974 13 Feb 1974] 4895/75 Heading C4X A nematic liquid crystal composition comprises at least one nematic compound of the formula and at least one nematie compound  where R, R<SP>1</SP> and R<SP>11</SP> are such an alkyl or acyl group and may be the same or different. It may be used in an electro-optic "twist" device.
Patent GB-1180921-A (GB)
Title: Improvements in Separation Procedures.
Inventor: SHERRINGTON LEONARD GEORGE
IPC: C01F17/17
Filed: 1966-02-04
Abstract: 1,180,921. Yttrium separation. THORIUM Ltd. 19 Jan., 1967 [4 Feb., 1966], No. 4952/66. Heading C1A. A batch method for separating yttrium ions from rare earth metal ions comprises: (a) multistage counter-current extraction between (i) an aqueous solution of inorganic acid salts of rare earth metals and of yttrium and (ii) a hydrocarbon solution of a branched chain carboxylic acid (the acid being branched at the C-atom adjacent the -COOH group) containing ions of yttrium and of rare earth metals, the extraction being carried out under conditions such that any solutes which leave each end of the extraction apparatus are continuously returned to that end whence they were derived; (b) stopping the counter-current solvent flows when sufficient separation has been achieved and emptying one or more stages of the extraction system containing yttrium ions together with some rare earth metal ions as impurities; (c) isolating the yttrium and rare earth values thus obtained, and where necessary converting to nitrates; (d) multistage counter-current extraction between (i) a solution of yttrium and rare earth metal nitrates in tributyl phosphate and (ii) an aqueous solution of said nitrates, the extraction again being carried out under conditions such that any solutes which leave each end of the extraction apparatus are continuously returned to that end from which they were derived; (e) stopping the counter-current solvent flows when sufficient separation has been achieved, and emptying one or more stages of the extraction apparatus containing a suitably pure solution of yttrium ions. Specified inorganic acid salts in stage (a) are nitrates and chlorides. When the salts in stage (a) are nitrates, the process may be conducted in the stages as before, but using the solvent pair (d(i)) and (d(ii)) in stage (a) and the solvent pair (a(i)) and (a(ii)) in stage (d). The carboxylic acid (stage a(ii)) may be a secondary acid (e.g. a naphthenic acid) or a tertiary acid containing 8-20 C-atoms, dissolved in xylene, kerosene or trimethylbenzenes. The tributyl phosphate used in stage (d) may also be dissolved in an organic solvent, e.g. trimethylbenzenes. The nitrate concentration in stage (d(ii)) is preferably not more than 160 g./l. expressed as oxides. Reference is made to Specification 1,026,791, which deals with the concept of "total reflux" used in this separation process.
Patent GB-1455183-A (GB)
Title: 1-phenyl-1-p-propargyloxyphenyl-2-nitroethane derivatives
IPC: C07C201/00
Filed: 1974-02-04
Abstract: 1455183 1 - Phenyl - 1p - propargyloxyphenyl-2-nitroethane CIBA-GEIGY AG 4 Feb 1974 [5 Feb 1973 14 Dec 1973] 04993/74 Heading C2C The invention comprises compounds of the formula wherein Z represents a group of the formula and one of X and Y represents a hydrogen, fluorine, chlorine or bromine atom or a C 1  to C 3  alkyl, C 1  to C 3  alkoxy, propargyloxy or C 1  to C 3  alkythio group and the other represents a propargyloxy group. The compounds of the invention may be prepared by a process which comprises reacting a compound of formula in the presence of a condensation agent with a compound of the formula under normal pressure and at a temperature of between -30‹ and +100‹ C. The compounds of the invention are used as pesticides.
Patent GB-182848-A (GB)
Title: New and improved steaming tubes applicable for use in processes of permanently waving growing hair
IPC: A45D4/04
Filed: 1921-02-12
Abstract: 182,848. Sartory, P. Feb. 12, 1921. Hair-waving.-A steaming tube for permanent hair-waving comprises a body 1, Fig. 1, with slots 2, closed at one end by a removable, plug 3, and at the other by a screw cap 5 provided with a slot 6, the root c of the tress of hair a passing between an annular washer 7 and a disc 8 of soft elastic material. The washer 7 is backed by a hard fibre washer which seats on an internal flange 4a in the tube 1, and both the washer 7 and the disc 8 have tongues 9 which project through the slot in the cap 5 and form a steam-tight joint over the pair c. The hair is coiled on a curler and covered with a moistened pad b, and the tube 1 is lined with paper 10. In a modification, the tube 1, Fig. 6, is slotted at the end, internally threaded to receive a plug 12, and provided with a flanged collar 13 to form a seating for the washer 7. The tube may be provided with an electric heater 14, Fig. 8, round the lower part, and with a vent tube 3a.
Patent GB-1478003-A (GB)
Title: Semiconductor devices
IPC: H01L21/761
Filed: 1976-02-10
Abstract: 1478003 Bombardment-enhanced diffusion INTERNATIONAL BUSINESS MACHINES CORP 10 Feb 1976 [26 March 1975] 5049/76 Heading H1K In the manufacture of a semiconductor device, after dopant atoms or ions have been introduced into a selected region of a semiconductor body and ions of an atomic number of at most 2 introduced by bombardment at less than 300‹ C. into adjacent regions the body is heated at from 600-900‹ C. to diffuse the dopant ions or atoms into the adjacent bombarded regions and to anneal the bombadment damage. As described junction-isolated transistors are formed in an N type epitaxial layer on a P type silicon substrate by introducing boron by oxidemasked diffusion or ion-implantation to form a transistor base region and a surrounding isolation region at the layer surface. A thickened oxide or photoresist masking layer apertured only over the isolation region is then formed and the body bombarded with protons at room temperature so as to produce maximum damage in the area between isolation region and substrate. A subsequent anneal at 700‹ C. for 30 minutes extends the isolation region to the substrate. Finally the emitter region and the necessary passivation and metallization layers are conventionally formed to complete the devices.
Patent GB-539466-A (GB)
Title: Improvements in the manufacture of friction discs, washers, bushes, linings for brakes, clutches and the like
IPC: B29C53/60
Filed: 1940-03-19
Abstract: 539,466. Synthetic resin articles. BRITISH BELTING & ASBESTOS, Ltd., and SISMAN, E. W. March 19, 1940, No. 5076. Drawings to Specification. [Class 2 (iii)] [Also in Groups XXVIII, VIII, XXIV, XXVI and XXXIV] Friction discs, washers, bushes, or linings for brakes, clutches &c. are made by winding a fibrous strip impregnated with a synthetic resin, e.g. a phenol-formaldehyde condensation product, into the form of a tube, hardening the tube, and then cutting it up into the required articles. The. fibrous strip may be composed of cotton, ramie, flax, silk, wool, asbestos
Patent GB-1507817-A (GB)
Title: Jet pipe for conducting hot gas
IPC: G01M15/14
Filed: 1977-02-08
Abstract: 1507817 Jet propulsion plant MOTORENUND TURBINEN-UNION MUNCHEN GmbH 8 Feb 1977 [14 Feb 1976] 05090/77 Heading F1J A jet pipe for conducting hot gas comprises a throttle valve flap 2 mounted therein about an axis 4 transverse to the longitudinal axis 3 of the pipe, the pipe being formed of two pipe sections 5, 6 separable in the transverse plane on the axis of rotation 4 of the throttle flap. The pipe sections 5, 6 have spaced inner and outer walls 14, 15, 16, 17 for the flow of cooling fluid therebetween, each pipe section having a separate cooling circuit K 1 , K3 respectively. The throttle flap 2 comprises a core portion 7 and an outer member 9 which define therebetween a space 8 for flow of cooling fluid, the cooling circuit being indicated at K2.
Patent GB-783157-A (GB)
Title: Improvements in phthalocyanine derivatives and in their manufacture
Inventor: STEVENSON ARTHUR CHARLES
IPC: C09B47/067
Filed: 1956-02-18
Abstract: The invention comprises five modifications of that aspect of the parent Specification which comprises preparing leuco copper phthalocyanine compounds by reacting a phthalonitrile, ammonia, and an anhydrous copper salt, in presence of a water-soluble organic solvent and a catalyst, at a temperature not exceeding 90 DEG  C., the amount of copper or nickel salt used being not less than one mol. and not more than two mols. for each six mols. of phthalonitrile, the catalyst being urea, biuret, guanidine, methyl glucamine, piperidine, or triethanolamine.  The modifications are: (1) use of a hydrated copper salt instead of an anhydrous one, e.g. cupric chloride dihydrate, cupric sulphate monohydrate, cupric sulphate pentahydrate, cupric nitrate trihydrate, or cupric acetate monohydrate; (2) carrying out the reaction at 90-98 DEG  C.; (3) using as water-miscible organic solvent a lower alkyl ether of diethylene glycol; (4) using as catalyst iminophthalimidine or 1,3-diiminoisoindoline; (5) slurrying an amorphous leuco-copper phthalocyanine as prepared according to the parent Specification or the above modifications in a liquid consisting of one or more water-miscible alcohols boiling below 105 DEG  C. or a mixture of such alcohols and water, and removing the liquid phase at a temperature not exceeding 60 DEG  C., to obtain a crystalline leuco copper phthalocyanine of improved keeping qualities.  In examples, phthalonitrile, copper sulphate monohydrate and methyl glucamine are heated in dimethylformamide while passing in ammonia gas, the filter cake obtained being slurried with methyl or isopropyl alcohol before drying.
Patent GB-808306-A (GB)
Title: Improved process for welding plates, sheets and strip
IPC: B23K11/087
Filed: 1957-02-14
Abstract: 808,306. Making tubes; welding by pressure. STRADTMANN, F. H. Feb. 14, 1957 [Feb. 16, 1956], No. 5111/57. Classes 83 (2) and 83 (4). In resistance butt-welding the edges of plates, sheets or strip, each edge is thickened by upsetting to project beyond both sides of the plate, sheet or strip and the thickened edges are butted to form ridges on both sides which ridges are then rolled down between roller electrodes, through which welding current is passed, acting on the ridges. The edges may be upset so that their line of contact is straight and perpendicular to the plates, sheets or strip, oblique or as in Fig. 3, wavy to give some overlap of the edges. The edges may be of plates forming a tube or of strip forming a helically wound tube. The ridges need not be rolled completely down and the electrodes may be shaped to give the required section to the seam.
Patent GB-139009-A (GB)
Title: Improvements in or relating to apparatus for displaying garments
IPC: A47F7/19
Filed: 1919-03-01
Abstract: 139,009. Launder, J. A. March 1, 1919 Coat and like hangers. - A hanger g, which may be formed as described in Specification 127,202, is detachably mounted on a stand or bracket. The hanger may be made of cardboard, three-ply wood, fibre, or aluminium. In a modification (not shown), the upper part of the frame or stand which supports the hanger is itself shaped like the hanger g, so that it may support a garment when the part g is removed. A hole or hook for suspending the frame is also provided.
Patent GB-452639-A (GB)
Title: Improvements in or relating to the recording and reproduction of sound
IPC: G11B3/00
Filed: 1936-02-20
Abstract: 452,639. Sound - recording circuits. RADIO CORPORATION OF AMERICA, 30, Rockefeller Plaza, New York, U.S.A. Feb. 20, 1936, No. 5190. Convention date, Feb. 26, 1935. [Class 40 (iv)] In a sound-recording circuit, the high frequency peaks are suppressed by separating the high and low frequency components and passing the former through a saturation amplifier. Currents from a microphone 10 are fed through an amplifier A to a network B which is such that the high and low frequency components pass respectively to amplifiers C, D. The outputs of these amplifiers are combined in a network E and pass through an amplifier F to the cutter 11. The grid bias 19 and anode resistance 20 are such that the amplifier C reduces the peaks of the high frequency components.
Patent GB-476983-A (GB)
Title: Improvements in and relating to collapsible stoves
IPC: F24B1/20
Filed: 1937-02-22
Abstract: 476,983. Collapsable stoves. JONES, E. L. Feb. 22, 1937, No. 5217. [Class 126] In a collapsable stove comprising four panels hinged together, two grate sections 22, 23 are hinged at 21 to opposite panels at substantially the same height and at right-angles to the axes of the hinges between the panels, the grate sections being supported at points between the opposite panels by means such as the brackets 20. Lugs 25 on the grate section 22 engage the brackets 20, and the overlapping parts of the grate sections interlock. A bottom plate 5, with openings to receive the top of supporting stakes 9, a grid 29 and a cover 34 are hinged to the panels. A collapsable chimney C is attached to the rear of the stove by the slidable engagement of flanges on the chimney with flanges 12 on the rear panel 2.
Patent GB-484243-A (GB)
Title: Improvements in and relating to apparatus for training aviators
IPC: G09B9/24
Filed: 1937-02-22
Abstract: 484,243. Training aviators. LINK, jun., E. A. Feb. 22, 1937, No. 5229. Convention date, Sept. 30, 1936. [Class 4] Apparatus for training aviators comprising a dummy aircraft rotatably mounted on a support and controllable by a pupil, e.g. as described in Specifications 370,128 and 476,816, includes a recording-device which automatically indicates, on a chart or map, turning movements of the trainer. Turning movements of the dummy control through gearing a self-synchronous motor, the. impulses from which are transmitted through cables to a self-synchronous motor 27 mounted on the recording- device R. Rotation of the shaft of the motor 27 turns, through gearing 29, 31, 32, shafts 33, 34 carrying wheels 49 driven from motors 43 through gearing 46, 47. Current is led to the motors 43 from contacts 56 through brushes 44 and contact rings 45. The device R carries a marking-wheel engaged by an inking- roller 53 and turned in the correct direction by gearing 30, 35.
Patent GB-776443-A (GB)
Title: New or improved methods of forming metal oxide coatings
IPC: C23C24/00
Filed: 1954-02-23
Abstract: Adherent coatings of metal oxides are produced by directing atomized aqueous solutions of oxygen-containing substantially non-hydrated metal salts or compounds that are thermally decomposible at 400 DEG F. to 1200 DEG F. to yield directly refactory metal oxides and are present in amounts corresponding to metal oxide contents of 0.1 to 10 per cent, against surfaces having temperatures of 400 DEG F. to 1200 DEG F. to effect such decomposition, release metal oxide particles in discrete form to contact with and adhere to the surfaces, and to volatilize the volatile components within a short period before and until substantially the instant of contact between the particles and the surfaces.  Compounds which may be employed include the ammonium carbonate double salts of magnesium, calcium, barium, strontium, aluminium, titanium, zirconium, hafnium and cerium, the nitrates of the metals of Groups IIA (Mg, Car Ba and Sr); IIB (Zn and Cd); IIIA (Sc. Y and La); IIIB (Al, Ga, In and T1); IVA (Ti, Zr and Hf); IVB (Pb and Sn); VIA (Cr. Mo and W); VIIA (Mn); thorium and the rare-earth metals, acetates and in some cases nitrates, phosphates or phosphites may be used.  Ammines or ammonia complexes of the metal salts are preferred; ethylene diamine complexes may also be used. The surface coated may be metal, carbon, or a ceramic or inorganic material such as mortar or fire brick; a vitreous coating may be applied over the metal oxide coating.
Patent GB-964171-A (GB)
Title: Stabiliser composition
Inventor: JOHNSON WILLIAM ARTHUR
IPC: C08K5/136
Filed: 1960-02-15
Abstract: A stabilizer composition for polymers and copolymers of vinyl chloride comprises a barium organic salt, a cadmium organic salt and mono-, di- or tri-chlorophenol (phenol being specifically phenol itself and not the general class of compounds). Either or both the organic salts may be the chlorophenate in which case the chlorophenol present in the acid radical may constitute all or part of the chlorophenol content of the composition.  The stabilizer composition preferably also contains another stabilizer e.g. an organic epoxide or an alkyl, aryl, alkaryl or alkyl aryl phosphite.  The barium and/or cadmium salt may also be present as the salt(s) of a C6-18 saturated aliphatic carboxylic acid and/or a naphthenic acid.  In examples polyvinyl chloride containing dioctyl phthalate as plasticizer and stearic acid as lubricant is stabilized with various permutations of the following compounds:-barium p-chlorophenate, cadmium p-chlorophenate, barium 2:4 dichlorophenate, butyl epoxystearate, triphenyl phosphite, diphenyl isodecyl phosphite, epoxidised soya bean oil, cadmium octoate, epoxidised linseed oil, barium naphthenate, p-chlorophenol, octyl epoxy tallate and barium 2:4:6 trichlorophenate.  The compositions may also include a zinc compound, e.g. zinc octoate, to inhibit sulphur staining.
Patent GB-1523841-A (GB)
Title: Process for the production of a thin-film resistor
IPC: H01C7/00
Filed: 1977-02-09
Abstract: 1523841 Cathode sputtering RESISTA FABRIK ELEKTRISCHER WIDERSTANDE GmbH 9 Feb 1977 [10 Feb 1976] 05363/77 Heading C7F [Also in Division H1] In the formation of thin film resistors, Ni-Cr-Au is sputtered in an oxygen-containing atmosphere, e.g. air. The film may be subsequently tempered and lacquered. By varying the partial pressure of oxygen, metallic and/or oxidic films may be deposited.
Patent GB-196443-A (GB)
Title: Improvements in carburetting systems for internal combustion engines
IPC: F02M25/022
Filed: 1922-02-24
Abstract: 196,443. Dodson, E. Feb. 24, 1922. Spray carburettors.-In carburetting systems in which, to avoid self ignition or detonation of the mixture, an anti-detonation fluid is introduceod into the system when the compression is at or near its maximum and is at other times cut off, the admission of the fluid is controlled by a valve actuated by a diaphragm, piston or bellows subjected to the static depression in the induction system. The nozzle B delivers into the induction pipe A the usual quick-burning fuel such as petrol or paraffin which is liable to detonate at fully or nearly fully open positions of the throttle valve C. The anti-detonating fluid such as water or benzol, xylol, alcohol or a mixture or emulsion of these with water is admitted through a nozzle K supplied from a float chamber J<2>. Around the nozzle is an air passage formed by a tubular valve G and the mixed fluid and air pass through a port H in the valve to the induction system preferably through a pipe J<1> to the air inlet side of the throttle C or throat of the choke tube, but it may be admitted through the pipe J. The valve G is actuated by a spring-loaded piston F subjected on its underside to atmospheric pressure and on its upper side to the depression in the induction passage A through pipe D. When the throttle C is fully or nearly fully open, the depression is a minimum and the port H is open to admit the fluid. As the throttle is closed the depression increases, and the valve G lifts and closes the port H.
Patent GB-1342439-A (GB)
Title: Hot water supply system
IPC: F24H9/14
Filed: 1972-02-07
Abstract: 1342439 Central heating SAUNIER DUVAL 7 Feb 1972 [8 Feb 1971] 5499/72 Heading F4U [Also in Division F2] The flow of water heated by a gas boiler 1, Fig. 1, in a combined central heating and hot water supply system is controlled according to winter or summer conditions by the setting of a manually operated handle 18, Fig. 4, in a switching valve 4 which controls by a camming action the position of a valve member 16 to close fluid flow via a branch 6 to the radiators 5 of the central heating system and back to the valve 4 through a return pipe 7 or directly through a return pipe 8 to the boiler thus bypassing the radiator circuit. Drawing off water actuates a rod 11 by a mechanism not described which rod actuates a spring controlled lever mechanism whereby the position of the valve 16 may be overridden.
Patent GB-249494-A (GB)
Title: Improvements in fastenings for skis
IPC: A63C9/22
Filed: 1926-02-26
Abstract: 249,494. Fabrique de Cannes et de Skis, Soc. Anon. March 19, 1925, [Convention date]. Skis. - Means for attaching skis to the feet comprise clamping-plates 4, 4<1> the horizontal portions 3, 3<1> of which slide beneath a plate 9 covering a recess in the ski, the fixing-screws 11, 12 of the plate forming guides for the clamps. Notches 6, 7 in the clamps enable the clamps to be locked in any desired position by means of a screw 8 which passes through the plate 9 and through the hole formed by two opposed notches. The studs 14, 14' are provided for the securing of straps.
Patent GB-1262701-A (GB)
Title: Improvements in opposed blade coater
IPC: B05D1/28
Filed: 1969-02-03
Abstract: 1,262,701. Coating paper; doctor blades. ETHYL CORP. 3 Feb., 1969 [8 Feb., 1968], No. 5703/69. Heading D1L. A paper web 4 is coated on both sides, e.g. from a roller coater, and the coating is then simultaneously doctored on both sides by a pair of opposed flexible blades 10, each of which has a flat bevelled working surface and is inclined at an acute angle to the direction of web movement, the blades being urged together with a force sufficient to establish at least a partially flush engagement of the working surfaces with the web. In Fig. 2 the blade holders 11 are angularly adjustable and each whole blade assembly slides on rails 24 via a carriage 12. A pneumatic cylinder 13 (only one shown) urges each carriage against the adjustable stop 24 at a pressure e.g. of 8-30 psig. Blades made of polyurethane, nylon, PTFE or polyethylene are mentioned, having a thickness of -¢inch a P and J plastometer value of 4-27 and shore A hardness of 70-95. The angle of bevel may be 30-50 and the leading edge of the working surface of the blade be cut back at 90-95. The acute angle to the web may be 40-60 being, advantageously, greater than the bevel angle.
Patent GB-252645-A (GB)
Title: Improvements in means for locking nuts on bolts
IPC: F16B39/32
Filed: 1926-03-01
Abstract: 252,645. Boutwell, I. C., and Pierce, W. H. March 1, 1926. Locking nuts; bushes, bolt-hole.-A bolt 5, a bush 1; a washer 11 and a nut 6 are all locked together. Fingers 2 of the bush 1 pass through holes in the head 4 of the bolt and the nut 6 and washer 11 each have radial projections which enter grooves in the washer 11 and a flange 8 integral with the bush.