baber/WOPTO huggingface dataset:
Patent GB-1346002-A (GB)
Title: Fluid velocity and vorticity determination
IPC: G01P13/02
Filed: 1972-04-05
Abstract: 1346002 Measuring fluid flow W E HOWELL 5 April 1972 [5 April 1971] 15737/72 Heading G1R In a method of, or a device for determining the velocity or vorticity of a fluid, such as air, a portion of an air stream is drawn from a main air stream by a fan 12 through an inlet 14, Fig. 1, and through a passage-way 16 in a honeycomb and the horizontal momentum of the indrawn air exerts a horizontal force in the honeycomb which force is measured by strain gauges 18. In an alternative embodiment, Fig. 2, a jet of air from a source 20 is projected in to a horizontally moving air stream and the deflected jet impinges on a plate 22 at a distance 17 from the locus of the jet core to exert a force on the plate 22 which force is measured by strain gauges 24.
Patent GB-1000128-A (GB)
Title: A continuous-rod cigarette-making machine provided with winnowing apparatus
Inventor: MOLINS DESMOND WALTER
IPC: A24C5/18
Filed: 1964-04-16
Abstract: 1,000,128. Cigarette making machines. MOLINS ORGANISATION Ltd. April 16, 1964, No. 15802/64. Addition to 988,448. Heading A2C. In a cigarette making machine of the kind in which the tobacco filler is formed on the underside of a perforated conveyer as described in Specification 895,733, in which the tobacco is winnowed by first and second air streams as described in Specification 937,228, the air from the first air stream passing through a perforated plate across tobacco projected by a picker roller 4 towards an entry to a passage 9, the plate is formed as a wall 6 of substantial thickness and is pierced with rows of holes 6A orientated to converge towards the periphery of a perforated roller 7, whereby the first air stream passes across the tobacco as a number of jets, the holes being orientated at angles such that the jets are tangential to a circle concentric with the perforated roller. The means for causing air flow through the machine is as described in Specification 916,141. The holes may be orientated to a common focal point such that the majority of jets issuing from the holes are substantially tangential to the circle. Specification 953,791 also is referred to.
Patent GB-1461347-A (GB)
Title: High frequency magnetic field switching circuits
IPC: G11C19/08
Filed: 1974-04-10
Abstract: 1461347 Keying oscillations SIEMENS AG 10 April 1974 [12 April 1973] 15832/74 Heading H3R An arrangement for speeding the turn-on and turn-off of high frequency rotating magnetic fields comprises a pair of crossed coils each forming a part of a parallel resonant circuit to which phase quadrature signals are fed, each resonant circuit being coupled to an adjustable d.c. source via a timing circuit and a switch. The figure shows the circuit associated with one of the coils Lo. When switch 2 is closed to energize oscillator 2, a pulse is applied to transistor T to charge the capacitance of resonant circuit 3 via timing circuit 5 and initiate a damped oscillation whose decay rate is arranged to be equal to the build up of oscillations in the resonant circuit caused by the oscillator. On switching off the oscillator, the transistor T is again pulsed into its conductive state to damp the resonant circuit, thus causing a rapid decay of the signal across it.
Patent GB-889585-A (GB)
Title: Process for dyeing nitrogenous fibres
IPC: D06P1/14
Filed: 1960-05-05
Abstract: Nitrogenous fibres, such as wool, silk or polyamide fibres, are dyed or printed with a sulphonated copper phthalocyanine, which is free from reactive groups in the presence of a cation-active surface-active compound containing no polyglycol ether chains, particularly a quaternary ammonium compound, numerous examples of which are given.  The dyebath may also contain a non-ionic dispersant, such as an ethylene oxide condensation product of a phenol, alcohol, fatty acid amide or alkylmercaptan, and an anion-active surface-active compound, such as sodium diisobutyl naphthalene sulphonate.  Dyeing may be effected from an acidic or neutral bath at temperatures up to or above 100 DEG C.  The dyebath may also contain sodium sulphate, and in the case of an acidic bath, the pH value is preferably raised by addition of, for example, an alkali metal bicarbonate, an ortho- or poly-phosphate, an ethanolamine, ammonia or hexamethylene tetramine, to a value above 6 after the fibres have absorbed the desired amount of dyestuff.  In the latter case, a direct cotton dyestuff may be added to the bath after the pH has been raised, thereby enabling mixtures of nitrogenous fibres and cellulose fibres to be dyed from the same bath.  Mixtures of differently sulphonated copper phthalocyanines or mixtures of sulphonated copper phthalocyanines with other dyestuffs, e.g. reactive dyestuffs, may be employed for dyeing the nitrogenous fibres.
Patent GB-570465-A (GB)
Title: Improvements in engine starter gearing
IPC: F02N15/06
Filed: 1943-09-29
Abstract: 570,465. Engine turning-gear. BENDIX AVIATION CORPORATION. Sept. 29, 1943, No. 16014. Convention date, Oct. 7, 1942. [Class 7 (v)] In an engine starter adapted to rotate a member of the engine when a motor, energized by the starting circuit moves a pinion to engage the member, mechanically actuated means positively hold the pinion in engagement with the member until the starting circuit is de-energized. A tubular shaft 8 mounted on the shaft 7 of the starting motor to rotate therewith drives, through a torsion spring 11, a screwed shaft 9 journalled on the tubular shaft 8. On starting the motor by closing a press-button 4, a nut 12 runs down the screwed shaft 9, compressing a light return spring 13, until checked by a stop 14 on the shaft 8, whereupon a casing 15 secured to the nut and provided with an overrunning clutch 17 moves a pinion 18 into engagement with a pinion 19 on the engine. At or near the end of its traverse, a latch 21 on the nut 12 drops into a notch 24 on the screwed shaft 9 and prevents reverse movement of the nut. Normally, the latch is maintained in an inoperative position by a spring-pressed plunger 26, but when the press-button 4 is depressed, a solenoid 27 in the starter circuit withdraws the plunger 26 from the latch and keeps it away until the starter circuit is de-energized.
Patent GB-240551-A (GB)
Title: Improvements in creeper tractor mechanism
IPC: B62D55/10
Filed: 1924-07-03
Abstract: 240,551. Jett, G. C. July 3, 1924. Vehicle-axle bearings; dicst, &c., excluding.- In a truck for endless-track tractors with flexible side frames, each ground wheel 46 is carried by an axle 133 in a journal bar 117 shouldered at 120 and mounted in place by springing open the legs 116 of the frame. A bolt 125 retains the box while permitting slight movement. The axle 133 has lateral play in its journal box. a packing sleeve 141 of leather being held in place by a helical spring.
Patent GB-691284-A (GB)
Title: Motor mounting device
IPC: H02K5/26
Filed: 1951-07-06
Abstract: 691,284. Motor mounting. BERGMAN, A. S. B. July 6, 1951 [July 15, 1950], No. 16099/51. Class 80 (iv). A motor 17 is adapted to be secured to foundation bolts 13 through the intermediary of a. plurality of fitting blocks 10 each having slots 11, 12 extending transversely to each other for engaging the bolts 13 and motor fixing bolts 14. These slots allow of accommodating different motors with different bolt holes to the fixed foundation bolts 13. Screws 21 may be provided for adjusting the position of the motor to tension suitably the driving belt.
Patent GB-775401-A (GB)
Title: Improvements in or relating to catalysts
IPC: B01J23/40
Filed: 1955-06-06
Abstract: A catalyst for use in reactions between gaseous hydrocarbons and other gases comprises a platinum or platinum alloy gauze, the margined zones of which are covered with a refractory material. In this way corrosion of the gauze by deposition of carbon is prevented at those parts of the gauze where the reaction temperature is lower. The refractory material may be alumina, zinc oxide, or magnesium oxide and may be applied by coating the gauze with an aqueous paste of the oxide and drying, or by forming a layer of metallic zinc or aluminium by cathodic deposition and converting the metal to oxide; in the later method an intermediate layer of copper or silver may be applied.  A catalytic unit comprising treated gauzes clamped together may be used for the production of hydrogen cyanide from methane and ammonia.
Patent GB-584524-A (GB)
Title: Improvements in or relating to tubular heat exchangers
IPC: F22D1/02
Filed: 1944-08-28
Abstract: 584,524. Heat-exchangers. BABCOCK & WILCOX, Ltd., and TYLDESLEY, W. L. Aug. 28, 1944, No. 16261. [Class 64 (iii)] A heat-exchanger, e.g., an economiser or superheater, comprises a bank of tubular elements disposed side by side, each element consisting of tube lengths 4-7 which are connected in series, at least at one end of the element, by return bends 9 formed integrally with, or united to, the tube lengths and provided with a supporting panel or panels 10 which constitute part of a boundary wall of the passage or chamber housing the exchanger. Fig. 1 shows each return bend 9 associated with an individual panel 10 by a welded joint 13, the panels being of rectangular shape and formed with peripheral flanges 11, so that the panels of each element may rest on top of one another and those of adjacent elements may be disposed side by side. The joints between abutting flanges 11 are made gas-tight by asbestos tape &c. 14, or, alternatively, the flanges are disposed in contact with one another, excepting along their outer edges which are displaced inwardly to form peripheral packing recesses. Each panel is provided with a recess or aperture 12 shaped to receive the bend 9, or with a number of such recesses when a single elongated panel is used for a complete element. Where panels are employed at both ends of the element, the panel or panels at one end, e.g., the end at which the inlet and outlet heaters are located, may be fixed to the framework of the economizer, the panels at the other end being free to move. In another construction panels are provided at one end only of each element, the tubes being connected in pairs at the opposite end by boxes having hand-hole fittings for facilitating cleaning.
Patent GB-1309662-A (GB)
Title: Switch mode power supplies
IPC: H04N3/18
Filed: 1970-04-07
Abstract: 1309662 Automatic voltage control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 April 1970 [25 April 1969 4 Nov 1969] 16343/70 Heading G3R [Also in Division H2] In a switched mode DC power supply feeding a load 11, the current of which varies at a predetermined frequency, greater than that of the mains supply, the mains supply is rectified so as to provide a uni-directional voltage Vi which is periodically interrupted by means of a switching element 2, at a frequency equal to or greater than that of the predetermined frequency, so as to provide a stabilized supply Vo, over-current protection is provided by blocking the current in the switching element 2, the duration of overcurrent being limited by minimising the size of smoothing capacitor 10. The load 10 is preferably the line output stage of a TV receiver. As described, transistor 2 is triggered at line frequency so as to interrupt current from the rectified supply Vi in the primary 8 of a transformer 9 to provide a supply Vo across capacitor 10. Over-current protection is provided by monitoring the current at 38 so as to provide a signal which, after peak rectification at 42, 43 actuates a silicon controlled switch 35 arranged to cut off the drive to the switching transistor 2. The voltage Vo is compared by means of a transistor 28 with a voltage across a Zener diode 26, the duration of pulses passed by transistor 2 being adjusted so as to maintain the voltage Vo constant. Smoothing. As shown in Fig. 3 part of the supply Vi is fed via resistor 34 to the comparator transistor 28 so as to compensate for the ripple present on supply Vi.
Patent GB-582284-A (GB)
Title: Improvements in the manufacture of articles made from cellulose acetate
IPC: D01F2/28
Filed: 1944-08-29
Abstract: A composition for the preparation of sheets, films, tubes, filaments and other articles of improved resistance to plastic flow at raised temperatures and improved flexibility at low temperatures, comprises in admixture one part of cellulose acetate having an acetyl content, calculated as acetic acid, of more than 56 per cent and not more than 61 per cent, and one to two and a half parts by weight of a plasticiser, but the composition is free from any addition of resin. The composition may be mixed with volatile solvents in the preparation of spinning solutions and casting dopes.  The plasticiser may be dimethyl phthalate, di-methoxyethyl phthalate, di- or tri-acetin.  Films made from the composition may be used for making laminated glass.  They may be reinforced with fabric or wire mesh. The composition may be formed into coatings for fabrics or cables. It may be prepared in the form of a moulding powder.  Articles may be obtained by a dipping process.  In an example, 1 part of cellulose acetate of 57.3 per cent acetyl content is dissolved in 8 parts of acetone and 2 parts of di-methoxyethyl phthalate.  The solution is spread upon a glass plate to form a film.  Specifications 407,709, 541,724, 544,412, 544,550 and 564,265 are referred to.
Patent GB-440485-A (GB)
Title: Improvements relating to means for drawing-off slivers in combing machines used in the preparation of textile fibres for spinning
IPC: D01G19/04
Filed: 1934-06-01
Abstract: 440,485. Drawing-off apparatus for combing - machines. GILLESPIE, P. J., 78, Woodstock Avenue, Golders Green, London. June 1, 1934, No. 16390. [Class 120 (i)] Means for drawing-off slivers in a wide rectilinear or French combing-machine comprises in combination a fusiform driving roller a, Figs. 1 and 2, a co-operating idler roller d and a band b of rubber or like material bellied in manufacture so that its peripheral length in any plane is substantially equal to its peripheral length at its middle plane less the difference between the circumferences of the driving roller a in the two corresponding planes whereby the edges of the band are maintained in close contact with the driving roller when passing round it. The band b may be made of rubber, of rubber and leather layers, or of rubber with a textile or woven metal base. The surfaces of the rollers may be smooth, or fluted or scratch-fluted longitudinally or helically.
Patent GB-565465-A (GB)
Title: An improved manufacture of diesel fuels
IPC: C10L1/198
Filed: 1941-12-19
Abstract: 565,465. Diesel fuel compositions. STANDARD OIL DEVELOPMENT CO. Dec. 19, 1941, No. 16395. Convention date, Jan. 2, 1941. Drawings to Specification. [Class 91] Fuel compositions for compression-ignition engines, particularly Diesel engines, of low pour and cloud points and high cetane number, contain a proportion of a dialkyl ether of a polyalkylene glycol of the general formula R(OR<1>)xOR, where R is alkyl, R<1> is alkylene, and x is an integer of at least 3 and preferably from 3 to 5. Preferably, R is a normal alkyl group of 1 to 5 carbon atoms and R<1> is an ethylene group. The compounds specified comprise dialkyl ethers of triethylene glycol, and dialkyl, particularly dimethyl, ethers of tetraethylene glycol. The dialkyl ethers formed from the various series of homologues of ethylene glycol may be used. The compounds of the higher ethylene polymers, such as dimethyl ether of tetraethylene glycol, are not completely miscible with all liquid fuels, such as gas oil, at low temperatures, but the dialkyl, such as diethyl, ether of diethylene glycol is a solvent therefor as well as for the liquid fuel, thus enabling the compounds of the higher ethylene polymers to be utilized which have higher blending values. An exemplified composition comprises Colombian gas oil, 50 per cent by volume ; diethyl ether of diethylene glycol, 30 per cent; and dimethyl ether of tetraethylene glycol, 20 per cent, which is completely miscible down to - 34‹ C. The compounds are added in the proportion of at least 5 per cent by valume, which proportion may be as high as 50 per cent or more. The compounds are prepared by alkylating, such as with dialkyl sulphates, the polyethylene glycols which latter are obtained by the controlled combination of glycol with ethylene oxide at temperatures of 100‹ C. and above ; they are obtained commercially as by-products in the production of the mono-ether solvents which are produced from the polymers obtained by the controlled reaction of ethylene oxide and a monovalent alcohol under pressure and similar temperatures. The liquid fuels concerned are preferably hydrocarbon Diesel oils of low pour and cloud points with cetane numbers of at least 35, such as fuels obtained by hydrogenation, acid treating, or solvent extraction processes. Naphthenic base fractions of B.R. 375-650‹ F. are specified. Other usual addition agents may also be added, such as dopes, e.g. nitrates, peroxides, and polysulphides, stabilizers, &c., and anti-oxidants, e.g. phenols and amino-phenols.
Patent GB-115770-A (GB)
Title: Means for Stiffening Box Toes of Boots and Shoes.
Inventor: ORDWAY JOSEPH HENRY
IPC: A43B23/08
Filed: 1917-11-09
Abstract: 115,770. Ordway, J. H. Nov. 9, 1917. Drawings to Specification. Plastic compositions containing india-rubber, waxes, &c.-A box toe stiffener for boots and shoes is cut from material comprising a layer of woven wire fabric, preferably made of rather fine and springy wire but with a coarse mesh, embedded in a self-hardening compound, which is adapted to be rendered temporarily plastic at a heat non- injurious to leather. A suitable compound comprises 8 parts asphaltum, 9 parts paraffin wax, 2 parts carnauba wax, and 1 to 5 parts guttapercha. Specification 114,398 is referred to.
Patent GB-1049191-A (GB)
Title: Improved tanning development processes and materials for use therein
Inventor: HOOF ALBERT EMIEL VAN
IPC: G03C5/315
Filed: 1963-04-26
Abstract: 1,049,191. Photographic tanning development processes. GEVAERT PHOTO-PRODUCTEN N. V. April 26, 1963 [April 26, 1962], No. 16618/63. Heading G2C. A process for tanning developing in an alkaline medium a latent image in a silver halide emulsion layer containing a hardenable protein or protein derivative using hydroquinone as the sole developer and in which development is carried out in the presence of (a) a substituted or unsubstituted primary amine as a hardening restraining compound which has no developing action and (b) a compound capable of splitting off sulphite ions, in a molar ratio of at most 5:10 with respect to the hydroquinone; and after tanning development removing at least a portion of the unhardened areas to produce a relief image. Specified amino compounds are amino acetic acid, amino succinic acid, amino ethane sulphoric acid, 2, 2<SP>1</SP>-disulpho-4,4<SP>1</SP>-diamino diphenyl and ethanolamine which may be used alone or with hydroxy compounds such as α- and #-naphthol, resorcinol or phloroglucinol. In the examples, hydroquinone and potassium metabisulphite are added to a gelatino silver halide emulsion which is image-wise exposed and treated with an alkaline activator containing the primary amine and optionally the hydroxy compound and urea as a softening agent, washing off the unhardened areas to produce a relief or pressing the developed emulsion against a carbon paper so that the unhardened areas are transferred which is then further transferred with the carbon adhering to an art printing paper to produce a hectographic master. Alternatively the second transfer may be omitted and material used as a spirit duplicating master (see Specification 996, 963).
Patent GB-732745-A (GB)
Title: Gas turbine plants
IPC: F02C7/30
Filed: 1953-06-16
Abstract: 732,745. Generating combustion products under pressure; preventing corrosion. SULZER FRERES SOC. ANON. June 16, 1953 [June 20, 1952], No. 16622/53. Class 51 (1). In a gas turbine plant combustion of the fuel takes place in the presence of an additive which reduces harmful effects and also accelerates combustion, and the dimensions of the combustion chamber are such that the loading is at least 3,000,000 kilogram calories per kg. cm<SP>2</SP>. of the absolute pressure in .the chamber per hour per cubic metre. The additive forms refractory oxidation products and may be a metal or metal compound in powder or vapour form.
Patent GB-775368-A (GB)
Title: Method and apparatus for preserving liquid explosive nitric esters from explosion
Inventor: LUFT ALEXANDER V D
IPC: F17D1/08
Filed: 1954-06-08
Abstract: 775,368. Transporting explosive nitric esters; explosions preventing. DU PONT DE NEMOURS & CO., E.I. June 8, 1954, No. 16714/54. Classes 9 (2) and 47. A liquid explosive nitric ester is preserved from explosion during transport along a conduit, by intermingling the ester with water to form an emulsion, and alternately introducing the emulsion and water into the conduit at a pressure sufficient to provide a flow of at least 3 ft./sec. through the conduit and to form successive columns of emulsion and water within the conduit. Water under pressure passes from pump 5 through pipe 13 to aspirator 4 (Fig. 2), entering through pipe 16 and nozzle 17. The resultant pressure reduction draws. liquid through suction tube 12, which mixes with the water in chamber 18. Where nitroglycerin is the liquid an emulsion is formed. The mixed liquids enter transport pipe 10 through convergent exit 21 throat 20. and divergent exit 22 to emulsion breaking separator 14 (Fig. 1). Emulsion breaking may be assisted by enlarging the diameter of the exit end of the transport tube. Separated nitroglycerin is removed at. 15, while water is returned through pipe 13 to pump 5. Air operated valves 6 are opened alternately by timing mechanism 9 at any desired frequency, so that nitroglycerin or water is sucked from the respective reservoirs 2, 3 into suction tube 12 as desired to give an emulsion containing not less than 30 per cent. water and columns of emulsion not greater than 75 ft. long and water columns not less than 20 ft. long. Nitroglycerin is fed to reservoir 2 from nitrator 1. The system is arranged so that should any failure of controls occur only water is passed through the pipes. It is stated that the nozzle should be tapered at an angle of 5 to 10 degrees and should project beyond the centreline of the chamber, the converging exit should be at an angle 10 to 20 degrees, the distance of the throat to the nozzle should be equal to 4-5 times the inside diameter of the nozzle, the length of the throat should be 1-1.5 times the diameter of the throat, the divergent exit should be at an angle 3 to 5 degrees, and the ratio of the diameter of the throat to that of the nozzle should be at least 1.2 to 1.
Patent GB-604372-A (GB)
Title: Improvements in or relating to furniture
IPC: F16B12/02
Filed: 1945-07-02
Abstract: 604,372. Furniture joints. SVEDBERG, J. E. July 2, 1945, No. 16755. Convention date, April 19, 1944. [Class 52(ii)] [Also in Group X] Articles of furniture are assembled by means of joints comprising frame members 16, 20, having interengaging grooves 32, 39 and projections 36, 38, and an elongated bar 22 screwed to the member 16 and either glued to the member 20 or having a projection 30 fitting in a groove therein.
Patent GB-1014601-A (GB)
Title: Improvements in and relating to flexible connections for trailers
Inventor: SLAVEN JOHN GREENWOOD
IPC: B60D99/00
Filed: 1961-05-09
Abstract: 1,014,601. Supporting cables. YORK TRAILER CO. Ltd. May 1, 1962 [May 9, 1961], No. 16767/61. Heading H2C. [Also in Division F2] A post for supporting an electric cable and secured on a tractor or a trailercomprises a tube 1, having rings 2 for the cable, secured to a seat member 5 and containing a conical spring 8. The upper end of the spring is engaged by a hook 10 secured to a base plate 7. Relative movement between the tractor and trailer causes the post to pivot and compress the spring and when tension on the cable is released the spring pulls the post to an upright position.