baber/WOPTO huggingface dataset:
Patent GB-950257-A (GB)
Title: Refractory brick unit
IPC: B28B23/00
Filed: 1962-01-29
Abstract: 950,257. Refractory bricks. OSTERREICHISCH-AMERIKANISCHE MAGNESIT A.G. Jan. 29, 1962 [Jan. 31, 1961], No. 3294/62. Heading F4B. A refractory brick comprises at least two preshaped parts of different refractory materials, preferably based on magnesite and/or chromite, lying loosely adjacent one another and extending approximately at right angles to the hot end, the parts being connected by a metal covering. As shown in Fig. 1, parts 1 and 2 are joined by U-shaped plates 3 and 7 attached by adhesive, with the interposition of a corrugated metal insert 11 which may be co-moulded with one of the parts and may then have a hanger formed integrally with or attached to it. In a modification flanges 9 and 10 may be very short and extended flanges 5 and 6 may overlap these and be spot welded thereto. Part 1 may be made of magnesia or magnesite-chrome, and part 2 of chrome-magnesite. Fig. 3 shows parts 1 and 2 with co-moulded outer plates 12 and 19 connected by plates 26 and 27 spot welded to lugs 14 and 21. A hanger 28 is engaged in a recess 30 formed in both parts 1 and 2 or the plates 12 and 19 may be formed with hanger tabs or may extend beyond the brick parts.
Patent GB-274743-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/08
Filed: 1927-02-05
Abstract: 274,743. Delacour, A. Feb. 5, 1927 Tobacco pipes.-The stem 2 has an extension 6 which fits into a recess 7 in the mouthpiece, the bore 10<a> of which ends flush with the flat surface 9. The bore of the stem is of the same diameter throughout. The reduced end 13 of the extension 6 may be formed by a tube 12 of non-absorbent material located in an enlarged portion of the bore of the stem. The extension 6 may be formed on a plug 4 which fits into the stem and has a flange 5 which abuts against the end of the stem. The extension 6 and reduced end 13 may be integral with the stem. Specification 258,193 is referred to.
Patent GB-978541-A (GB)
Title: Process of polymerizing propylene
IPC: C08F110/06
Filed: 1963-01-28
Abstract: Propylene is polymerized by contact with a catalyst  made  by mixing metallic  sodium, aluminium-reduced-TiCl4,  and tetrakis (di-methylamino) silane, in the presence of a polymer-structure-modifier comprising  an  organozinc compound. The sodium metal is present in an amount of 1.0 or more mols per mol of the reduced Ti Cl4 compound, and the modifier in an amount of at least 0.005 mol. per mol. of the same compound. The aluminium-reduced-Ti Cl4 has the empirical formula Ti3AlCl12. The modifier may be diethyl, or di-n-propyl, or ethyl n-propyl, or di-(2-ethylhexyl) zinc. The polymerization may be effected in the presence of hydrogen, and a hydrocarbon diluent.
Patent GB-778739-A (GB)
Title: Process for the production of trisodium pyrophosphate hydrates
IPC: C01B25/42
Filed: 1955-02-04
Abstract: Trisodium pyrophosphate hydrate is produced by intimately mixing a mixture of disodium dihydrogen pyrophosphate and tetra-sodium pyrophosphate with an amount of water sufficient to form a hydrate but insufficient to dissolve the product.  When stoichiometric proportions of the disodium dihydrogen phosphate and tetrasodium pyrophosphat are not employed the trisodium pyrophosphate hydrate may contain small amounts of di- and tetra-sodium pyrophosphate.  The water may be incorporated in the pyrophosphate mixture by spraying a mixture of di- and tetra-sodium pyrophosphates as it is tumbled in a rotating drum. Alternatively the hydration can be combined with a grinding operation whereby the pyrophosphate mixture is worked in a ball mill and a mist of water applied thereto.  The disodium-tetrasodium pyrophosphate mixture can be produced directly by transforming a sodium ortho phosphate calcinate, which consists of an intimate mixture of anhydrous mono- and di-sodium ortho phosphate and has a Na2O : P2O5 ratio of 1.5:1, into pyrophosphate by heating to temperatures between 200 and 260 DEG C.  The calcinate is produced by completely dehydrating a mixture of mono- and di-sodium orthophosphate hydrates at temperatures below 200 DEG C.  The pyrophosphate mixture obtained by heating the calcinate may be transformed directly into trisodium pyrophosphate hydrate, but if a higher temperature, for example 290 DEG C. is chosen for the conversion of the orthophosphate to pyrophosphate, sodium tripolyphosphate is simultaneously formed particularly if the Na2O : P2O5 ratio is increased; on hydration a mixture of trisodium pyrophosphate hydrate and sodium tripolyphosphate hydrate is obtained; such a mixture may be used for meat-tenderizing and as a fat emulsifier.  According to examples (1) a mixture of disodium dihydrogen pyrophosphate and tetrasodium pyrophosphate in a molar ratio of 1:1, are introduced into a stainless steel rotary drum fitted with lifters and which rotates at 10 revolutions per minute 8 mols of water are sprayed on to the tumbled material and the mixture is then dried in a hot air drier at 80 to 90 DEG C. to a water content of 6.1 per cent.  A further example relates to hydration with 3 mols of water. Crystographic data of the trisodium pyrophosphate monohydrate is provided.
Patent GB-1162426-A (GB)
Title: A Bi-Pole Inductor for Electric Machines
IPC: H02K3/20
Filed: 1967-01-23
Abstract: 1,162,426. Dynamo-electric machines. SIEMENS A.G. 23 Jan., 1967 [21 Jan., 1966], No. 3395/67. Heading H2A. A two-pole rotor has a core 3 with an exciter coil 4 mounted on it and laminated polepieces 5. A damper winding (13) having end connections 14 which secure the laminations together axially and are interconnected by bars 33 recessed within the core and lying within the coil. Stub shafts 1a, 1b are attached by flanges 2 to the ends of core 3 and these flanges are recessed to surround the coil and the connections to the coil are made through a bore in shaft 1b. The coil is secured by light alloy plates 10 lying in the interpolar gap and provided with screws which pass through the split coil 4. Cooling fan blades 17 may be provided on end flanges 2. In a modification, Figs. 3-8 (not shown), the coil may be wound on a former made of copper or aluminium which also serves to interconnect the damper winding end rings.
Patent GB-686777-A (GB)
Title: Improvements in electrical sound recording and reproducing apparatus
IPC: H04R17/04
Filed: 1950-02-11
Abstract: 686,777. Crystal phonographic recorders; loudspeakers. SYKES, A. F. March 9, 1951 [Feb. 11, 1950], No. 3526/50. Class 40 (iv). A transducer, shown in plan in Fig. I, comprises a pair of crystal rods 2, 2a vibratable longitudinally, one pair of ends being fixed to a block 12 and the free ends being hinged to a lever 18 integral with a stylus which can thus vibrate laterally. Bending is prevented by a ball 136 interposed between the lever 18 and the block 12, the lever 18 being urged towards the block 12 by an adjustable spring, Fig. VII (not shown). The crystal rods are maintained under compression by a spring-tensioned cord 3. The block 12 carries a sliding ball or shoe 7 for contact with the record or record blank. The block 12 is pivoted about a horizontal axis 24, being counter-balanced by a spring 8, and can be lifted from the record or blank by a screw lever 11. The stylus may be damped by a substance such as boiled castor oil. In a modification, Fig. III, the crystals act on a plate 14 hinged at 16 and acted on by a spring 15, the roller 136 being dispensed with. One or three crystal rods may be used instead of two. The rods may act on the diaphragm of a loudspeaker of the type described in Specification 650,769. Specifications 298,904, 323,502, [both in Class 40 (iv)], and 650,808 also are referred to.
Patent GB-645857-A (GB)
Title: Improvements in and relating to turbine bucket vibration damping arrangements
IPC: F01D5/22
Filed: 1948-02-06
Abstract: 645,857. Turbine blades. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 6, 1948, No. 3558. Convention date, Feb. 11, 1947. [Class 110(iii)] Vibration at the tip portions of blade segments of an axial flow turbine is .damped by metal clips 11 loosely mounted on the ends of adjacent shroud portions 9. The members 11 are placed in position and the sides are then bent radially outward and across the outer surfaces of the shroud segments. Under the action of centrifugal force the clips engage the radially inner surfaces of the shroud portions. Specification 180,216, [Class 110(iii)], is referred to.
Patent GB-1178303-A (GB)
Title: Improvements in and relating to Reinforced Fibre Mats.
IPC: B32B5/26
Filed: 1967-01-24
Abstract: 1,178,303. Laminated fibre mat. WOOD CONVERSION CO. 24 Jan., 1967 [2 Feb., 1966], No. 3628/67. Heading B5N. In a fibre mat, e.g. a rug underliner or carpet, the fibres are interfelted from face to face of the mat and intermediate said faces there is a plastics net having two crossing sets of parallel flexible strands, the intersections of the strands of one set with the strands of the other set being joints integral with said strands, and the fibres of the mat on opposite sides of the net being interfelted through the meshes of the net. In one method of forming the mat preformed felts 24, 26 containing an adhesive, which may be unset, are laminated to each side of a plastics net 22 by heat and possibly pressure. In a further method an assembly of layers 24, 26 of feltable fibres, e.g. of cotton or polyester, which may be bonded, and an intermediate plastics net 22 is needled to felt and interfelt the fibres of the layers. The plastics net may be of extruded polyethylene or oriented polypropylene, and the openings therein may be rectangular or diamond-shaped. The net may be produced by extruding it in the form of a flat sheet or in the form of a cylinder which is subsequently cut to give a flat sheet. The net may be heated and stretched in the direction of one or both sets of strands to thin the strands and orient the plastics thereof. Adhesives used to bond the fibres may be starch or resin solution or resin powder.
Patent GB-347323-A (GB)
Title: Process for the manufacture of acetic acid from acetaldehyde
Filed: 1930-02-03
Abstract: Acetic acid is obtained by oxidizing acetaldehyde in a continuous process with oxygen or mixtures thereof with inert gases, the quantity of oxygen used considerably exceeding that theoretically required for the oxidation, so that dangerous accumulations of peracetic acid are prevented.  The process may be carried out, preferably at temperatures between 55 DEG  and 80 DEG  C. and at pressures of about 1,5 atmospheres, by allowing acetaldehyde to flow into a mixing vessel together with a quantity of oxidizing gas containing an excess of oxygen of at least 50 per cent. Cooling means may be provided, and the reactants may be mixed by means of stirrers, or by causing them to pass through one or several turbo-mixers.  The reaction product may be purified by distillation.  The waste gases may be treated for the recovery of acetaldehyde first in a washing tower supplied with the crude reaction product, and then in another tower supplied with acetic acid free from acetaldehyde.  Examples are given.
Patent GB-160067-A (GB)
Title: Improvements in or relating to tin openers or the like
IPC: B67B7/46
Filed: 1920-02-06
Abstract: 160,067. Cooper, E. E. Feb. 6, 1920. Opening by cutting or tearing.-A tin-opener comprises a sector-shaped part 10 formed with teeth &c. 12 to engage the periphery of a tin, and mounted on a handle 11. Pivotally mounted on the part 10 is a radial arm 2 carrying a cutter which comprises a piercing-point 4 and an upwardly and rearwardly inclined cutting-edge 5. A projecting ledge or shoulder 7, Fig. 3, situated above the cutter serves to burr over the cut edge of the tin during the cutting operation. The top of the cutter is flattened at 9 to facilitate the insertion of the piercing-point.
Patent GB-1060353-A (GB)
Title: Improvements in or relating to the treatment of natural rubber latex
Inventor: COCKBAIN ERNEST GORDON
IPC: C08C1/06
Filed: 1965-01-27
Abstract: A natural rubber latex concentrate stabilized against freeze-thaw agglomeration contains 0.2 to 0.8% by weight of ammonia from 0.02 to 0.2% by weight of a fatty acid soap and from 0.1 to 2.0% by weight of an inorganic sodium or potassium salt and/or from 0.02 to 0.3% by weight of a mono- or polychlorophenol or of a nuclear alkyl substitution derivative thereof. The phenol may be used as such or as its sodium, potassium, or ammonium salt. The inorganic salt may be added to the latex before concentration in such an amount that the final concentration of salt is 0.1 to 2.0% by weight.
Patent GB-877695-A (GB)
Title: An improved process for preserving the carcasses of birds
IPC: A23B4/023
Filed: 1959-02-03
Abstract: Carcasses of birds are preserved by rubbing inside with a dry mixture of salt, cane sugar and saltpetre in the proportions 24 : 6 : 1, covering with this mixture for 12-30 hours according to size, washing and drying.  The carcasses may then also be smoked.
Patent GB-208049-A (GB)
Title: Improved means for discharging granular and like material from retorts and similar vessels
IPC: C10B33/02
Filed: 1923-02-07
Abstract: 208,049. Hutchins, T. W. S. Feb. 7, 1923. Discharging.-Relates to discharging-apparatus for retorts &c. of the type in which the discharge is effected through a seal or trap, and comprises a U-shaped outlet formed of longer and shorter limbs a, b separated by a partition gapped at g for the passage of an impeller f suspended from a shaft d and operable by a lever e &c to push the material, from the limb a to the limb b, from the upper end h of which it is discharged.
Patent GB-550586-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H03D7/10
Filed: 1941-05-07
Abstract: 550,586. Electron multipliers and circuits therefor. BOSCH, F. J. G. van den, and VACUUMSCIENCE PRODUCTS; Ltd. May 7, 1941, No. 3753/42; Divided out of 545,123. [Classes 39 (i) and 40 (v)] In an electron multiplier alternating potential is applied to an injector electrode arranged to follow one or more of the secondary cathodes and a tuned circuit for withdrawing an unwanted frequency is provided and connected to a succeeding by-pass electrode arranged in the electron stream. The Figure shows a supersonic heterodyne receiver in which the local oscillator'is connected to. grid 40 and the signal to injector grid 32 while, as the arrangement described in, Specification 545,123, by-pass electrode 31 is connected through tuned circuit 41 to potentiometer 48.
Patent GB-670647-A (GB)
Title: True airspeed indicator of the ionization type
IPC: G01P5/00
Filed: 1949-02-11
Abstract: 670,647. Measuring fluid flow. BENDIX AVIATION CORPORATION. Feb. 11, 1949. [Aug. 31, 1948] No. 3841/49. Addition to 665,298. Class 40 (i). [Also in Group XX] Fluid velocity or air speed is measured by determination of the transit time of groups of ions produced by a source 14, Fig. 1, modulated in intensity by a, screen 11 and collected'at a screen 12. In the embodiment of Fig. 1, the screen 11 is fed with an alternating potential and the collector 12 develops an alternating potential whose phase depends on the velocity of the ions ; the potential applied to 11 is fed to a voltage divider 20, phase-splitter 21 and amplifier 22 to a phase-shifter 23 ; the output from 23 is applied with the potential from 12 to a phase-comparator 19 whose output is applied to a servo-motor adjusting phaseshifter 23 until the output of 23 is in phase with the potential from 12 ; an indicator 13 indicates the phase-shift as a measure of the ion speed. In the embodiment of Fig. 2, the potential from 12 is applied to an amplifier 16 so as to form an oscillator whose frequency is dependent on the phase difference between oscillations applied to 11 and developed at 12 ; a frequency meter 31 and a cycle counter 32 are connected to line 33. The parent Specification is referred to.
Patent GB-1216003-A (GB)
Title: Molding machines
Inventor: MOSLO ERNEST PAUL
IPC: B29C45/67
Filed: 1968-01-25
Abstract: 1,216,003. Moulding machines. E. P. MOSLO. 25 Jan., 1968 [30 Jan., 1967], No. 3888/68. Heading B5A. A moulding machine, e.g. for injection moulding, has fixed and movable mould clamping platens 14 and 22 respectively, brought together by a first, relatively low pressure, fluid motor comprising a fixed piston 40a and a movable cylinder 64 to which the movable platen is coupled, after which a second, relatively high pressure, fluid motor comprising a fixed cylindrical chamber 84 and a movable piston 86, is clamped to the first motor to provide a high pressure mould closing action. The hollow piston-rod 40b of the fixed piston is attached to a plate 46 secured to a fixed support 12, and the surrounding cylinder 64 slides on a sleeve 50 surrounding the rod and has threads 66 therealong whereby the motors are clamped together. The piston 86 is secured to a member 92 transversely bored to slidably receive an opposed pair of jaws 102 which can be urged towards and away from the cylinder 64 by a piston and cylinder drive 104, 106. The inner ends of the jaws are correspondingly threaded so that when the mould parts 24, 24a supplied by injection means 36a, 38 are brought together by the platen 22 the jaws are actuated to engage the threaded cylinder whereupon the second motor 84, 86 is actuated. The member 92 and platen 22 are guided on tie bars 16 extending between the support 12 and platen 14. A ring 126 threaded to the cylinder 64 can adjust the relative positions of the cylinder and member 92 to ensure engagement of the jaw and cylinder threads. A mould stripper mechanism includes a plate 138 with extensions 140 reciprocated by a fluid motor unit 142.
Patent GB-1378414-A (GB)
Title: Antibiotic compound and its preparation
IPC: C07H19/01
Filed: 1972-10-31
Abstract: 1378414 Salinomycin KAKEN CHEMICAL CO Ltd 31 Oct 1972 4000/74 Divided out of 1378413 Heading C2C The new antibiotic salinomycin having the formula in acid form and/or being a colourless weak acidic powder of melting point 117-118‹ C., soluble in alcohols, esters, chloroform, ether, carbon tetrachloride and hexane and insoluble in water, stable in pH 7-9, slightly unstable in pH lower than 5, showing negative for Lemieux, potassium permanganate, ninhydrin, ferric chloride and Fehling's reaction and positive for iodine reaction to be reddish brown; having the optical rotation [α]<SP>20</SP>/ D  = -25‹C. (c = 1, methanol), empirical formulae C 42 H 69 O 11 Na (molecular weight 772) for the sodium salt and C 42 H 70 O 11  (molecular weight 750) for the acid form, and a UV and IR spectrum as shown in Figs. 1 and 2 respectively, or a salt thereof, is prepared by the aerobic culture of a Salinomycin-producing strain of Streptomyces albus in a liquid nutrient medium containing assimilable sources of carbon, nitrogen and hydrogen and extracting the Salinomycin from the mycelial cake and/or the cultured medium and purifying it. The Salinomycin may be extracted from the mycelial cake and/or the culture medium by stirring with a solvent comprising butyl acetate, acetone or chloroform, and the organic phase separated from the aqueous phase and the solid phase, and the Salinomycin in the organic phase purified by column chromatography. This is preferably first carried out over alumina using ethyl acetate and/or hexane as developer and the Salinomycin is then further purified by column chromatography using acetone as developer.
Patent GB-885247-A (GB)
Title: Improvements in or relating to an oscillating column combustion apparatus
IPC: F23C15/00
Filed: 1958-02-07
Abstract: 885,247. Generating combustion products under pressure. JUNKERS & CO. G.m.b.H. Feb. 7, 1958 [Feb. 9, 1957], No. 4028/58. Addition to 804,004. Class 51 (1). An oscillating column combustion apparatus comprises two combustion chambers 23, 24 operating in antiphase, the inlets 21, 22 of the chambers being coupled by means of an oscillating column coupling device. In the embodiment shown, two divergent tubular members 12 and 13 are disposed in axial alignment with their smaller diameter ends adjacent but spaced apart to provide an air inlet 14. The members 12, 13 project into two duct members 15, 16 which converge in the direction of flow, being closed at their larger diameter ends 17, 18. The duct members 15, 16 each converge to a throat 19, 20 and then diverge to form the combustion chamber inlets at 21, 22, ignition apertures being provided at 25, 26. Combustible gas supplied through duct 32 enters a casing which encloses the two divergent inlets 29, 30 of the gas supply pipes 33, 34, the smaller diameter ends being disposed adjacent to each other but spaced apart to provide a gas inlet 31. The ends of the ducts 33, 34 converge at 35, 36 where they enter the throat portions 19, 20 of the duct members 15, 16. The combustion chambers 23, 24 are surrounded by helically wound watercooling pipes 40, 41 the coils of which are spaced apart so as to provide between the combustion chamber walls and surrounding casings 43, 44, helical passages through which combustion gases flow from the chamber outlets 37, 38 to the common discharge duct 47. The ends of the casings 43, 44 are closed by caps 48, 49.
Patent GB-699034-A (GB)
Title: Improvements in or relating to the preparation of radioactive isotopes
Inventor: DUNCAN JAMES FRANCIS
IPC: G21G1/02
Filed: 1951-02-20
Abstract: 699,034. Neutron irradiation. MINISTER OF SUPPLY. Feb. 20 1952 [Feb. 20, 1951], No. 4069/51. Class 39(iv) A radioactive form of an element is produced by an nγ reaction by irradiating with neutrons an ion exchange substance of low rate of exchange having the element in exchange positions, the irradiated substance then being washed to remove the radioactive isotope. The ion exchange material may be an alumino silicate and the element may be sodium, potassium, copper, strontium, or lanthanum. In the Provisional Specification a complex e.g. cupferron, may be used in place of the ion exchange substance.
Patent GB-311015-A (GB)
Title: Improvements in brakes for use on vehicles
IPC: F16D65/22
Filed: 1928-02-09
Abstract: 311,015. Boughton, E. B., Emmott, W., and Brock, D. T., (trading as Automotive Products Co.), and Serve, A. J. Feb. 9, 1928. Blocks acting on drums; fluid-pressure.-In a brake for vehicles, fluid-pressure cylinders j, k of different diameters are adapted to operate the shoes b, c respectively so that less pressure is exerted on the shoe b in order to compensate for the increased pressure of this shoe due to servo-action when the drum rotates in the direction shown by the arrow. The cylinders are in one piece with a common supply port. A spring between the pistons maintains cup-washers against the pistons. The outer ends of the cylinders may be closed by flexible caps which engage the pistonrods q, r.