baber/WOPTO huggingface dataset:
Patent GB-642472-A (GB)
Title: Process of recovering potassium from diluted solutions
IPC: C01D17/00
Filed: 1947-12-09
Abstract: Sparingly soluble potassium salts of nitrated diarylamines which are used in the recovery of potassium from dilute solutions, e.g. sea water, are prepared by adding to a solution of a potassium salt an easily soluble salt, e.g. a calcium salt of a highly nitrated secondary aromatic amine.  Suitable amines are penta-and hexa-nitro methyl diphenylamine and highly nitrated dinaphthylamine and phenyl naphthylamine.ALSO:Potassium is recovered from dilute solutions, particularly sea water, by the addition of a highly soluble salt such as a calcium salt of a highly nitrated secondary aromatic amine.  The insoluble potassium salt is removed by filtration and the potassium separated as the nitrate by the addition of nitric acid.  Nitro compounds mentioned include penta and hexa nitro compounds of methylated diphenylamine and highly nitrated dinaphthylamine and phenyl naphthylamine.  In an example potassium nitrate is recovered from sea water by the above process using as the nitro compound 2 : 4 : 6. 21 : 41 - penta - nitro - 61 - methyl - di-phenyl-amine.
Patent GB-1136796-A (GB)
Title: Improvements in or relating to hot-water storage vessels
Inventor: SIMPSON ERIC
IPC: F24H9/12
Filed: 1966-07-20
Abstract: 1,136,796. Hot water supply systems. RANGE BOILERS Ltd. 19 June, 1967 [20 July, 1966], No. 32566/66. Heading F4A. A hot-water storage vessel fed directly from the mains through a pressure reducing valve C is provided with a relief valve E set at a higher pressure than the valve C and with a draw-off pipe F arranged to form an air space H of sufficient volume to absorb the water expansion on heating without the increase in pressure causing escape of water through relief valve E. To avoid overheating the valve E may incorporate a fusible plug.
Patent GB-748435-A (GB)
Title: Improvements in cobalt-containing mono-azo dyestuffs
IPC: C09B45/20
Filed: 1953-11-24
Abstract: The invention comprises cobalt containing mono - azo dyestuffs which in their metal-free state have the general formula <FORM:0748435/IV(c)/1> wherein x denotes hydrogen, halogen, alkyl or nitro; R denotes an alkyl - sulphonyl group or sulphonamide group, the nitrogen atom of which may be substituted by an alkyl group which may bear a hydroxy or methoxy group; and wherein the nuclei (I) may be partly or totally hydrogenated or bear further substituents selected from alkoxy, alkyl, alkyl-sulphonyl or substituted sulphonamide groups. The dyestuffs dye wool, silk, leather and synthetic nitrogeneous fibres in yellow shades.  The metal-free dyestuffs are obtained by diazotizing 1 mol of an aminobenzene having a hydroxy or methoxy group ortho to amino and coupling with an acetoacetylaminonaphthalene the components being further substituted as described above.  Diazo components specified are 1 - hydroxy - or - methoxy - 2 - amino - 4 - methylsulphonyl benzene, 1 - hydroxy - or - methoxy - 2 - aminobenzene - 4 - or - 5 - sulphonamide, 1 - hydroxy - or methoxy 2 - amino - 6 - fluoro - or - chloro - or - bromo - or - methyl - or - nitro - benzene - 4 - sulphonamide, 1 - hydroxy - or - methoxy - 2-amino - 4 - fluoro - or - chloro - or - methyl - or - nitro - benzene - 5 - or - 6 - sulphonamide or the derivatives thereof substituted on the sulphonamide nitrogen atom by, for example, methyl or ethanol radicals.  Azo components specified are 1 - or - 2 - acetoacetylamino - naphthalene or - 5 : 6 : 7 : 8 - tetrahydronaphthalene or - decahydronaphthalene.  The metallization process may be carried out using cobaltous acetate, formate or sulphate, in aqueous suspension or solution, in, for example, formamide, or in aqueous caustic alkali medium with or without the addition of tartaric, citric or lactic acids to give soluble cobalt complexes.  Alternatively the metallization is carried out in the melt of an alkali metal salt of an aliphatic monocarboxylic acid. When the dyestuff contains methoxy groups the metallization is carried out in an organic solvent such as a glycol.  The preferred dyestuffs contain 1 atom of cobalt combined with 2 molecules of monoazo compound.  In Examples (1-48) the cobalt-containing dyestuffs are prepared.  The following further components are specified; diazo components, 1 - hydroxy - 2 - amino - 6 - nitrobenzene - 4 - sulphonic acid - ethyl - or - isopropyl - amide, 1 - hydroxy - 2 - amino - 4 - tert. butylbenzene - 6 - sulphonamide, 1 - hydroxy - 2 aminobenzene - 4 - sulphonic acide - (31 - hydroxy or - methoxy) - propyl - or - (21 - methoxy) - ethyl - amide and 1 - hydroxy - 2 - amino - 4 - ethylsulphonylbenzene; azo components, 1 - acetoacetylamino - 2 - or - 4 - methoxy - or - 2 - ethoxy - or - 4 - or - 5 - methysulphonyl - or - 4 - ethylsulphonyl - naphthalene and 1 - acetoacetylamino - naphthalene - 5 - sulphomethyl - or - 4 - sulphonethanol - amide.
Patent GB-856329-A (GB)
Title: Improvements in or relating to the manufacture of coated polymeric substrates
IPC: D06M14/30
Filed: 1957-10-18
Abstract: Graft polymers are produced by irradiating a shaped polymeric substrate with at least 0,01 watt-sec./cm2 of substrate surface of ionizing radiation in the presence of 1013 to 5 X 1016 molecules of oxygen/cm2 of substrate surface and subsequently contacting the irradiated substrate with a chemically distinct, unsaturated, polymerizable monomer with no additional access of oxygen.  The polymeric substrate may be of polyethylene, polystyrene, polybutadiene, rubber, polyisobutylene, a butadiene-styrene capolymer, polyvinyl chloride, fluoride or acetate, polyvinylidene chloride, polychloroprene, polytetrafluorethylene, polymethyl methacrylate, polyethylene terephthalate, polyvinyl alcohol, cellulose, regenerated cellulose, polytetrahydrofuran, polyformaldehyde, a dioxolane polymer, a phenol-, urea- or triazine-formaldehyde condensation polymer, a polyamide or polyimide, polyacrylonitrile, a polyvinyl acetal, cotton, wool or silk, and may be in the form of a knitted or woven fabric, film, fibre, tube, pipe beading, tape, extruded moulding, wire covering or powder.  The monomer may be vinyl chloride, fluoride, benzoate or acetate, vinylidene chloride, tetrafluoroethylene, acrylonitrile, methacrylonitrile, an alkyl acrylate, chloroacrylate or methacrylate, propiolic acid, phenyl propiolic acid, ethyl propiolate, styrene, methyl styrene, chlorostyrene, butadiene, isoprene, chlorobutadiene, a vinyl ketone or vinyl ether or divinyl ether.  Irradiation may be by particle radiation such as accelerated electrons or by electromagnetic radiation such as X-rays.  Reference has been directed by the Comptroller to Specification 809,838.ALSO:Graft polymers are produced by irradiating a shaped polymeric substrate with at least 0.1 watt-sec./cm.2 of substrate surface of ionizing radiation in the presence of 1013 to 5 X 1016 molecules of oxygen/cm.2 of substrate surface and subsequently contacting the irradiated substrate with a chemically distinct, unsaturated polymerizable monomer with no additional access of oxygen (see Group IV(a)).  Reference has been directed by the Comptroller to Specification 809,838.
Patent GB-604793-A (GB)
Title: Portable inspection lamp
IPC: F21V17/00
Filed: 1945-12-03
Abstract: 604,793. Lamps. COURTIN, M. Dec. 3, 1945, No. 32687. [Classes 75(ii), 75(iii) and 75(iv)] [Also in Group XXXVI] A portable lighting device comprises a resilient mounting 1, 2 adapted to fit the head of the user, a casing 5, a reflector 14 and an electric lamp socket 7 with an outwardly flared reflecting mouth 11. The resilient mounting may comprise two or more arms 1, 2 provided with rubber pads 4, and the reflector 14 may be mounted in the casing 5 by a rubber ring 12 of U- section and be connected to the socket 7 by insulating members 10. The leads may enter through a rubber insulator 15 and a two-piece cap 13 and may draw current from a motor vehicle battery to supply the lamp, which may be of the twin filament type as used in motor vehicles.
Patent GB-1175433-A (GB)
Title: High-Pressure Hydraulic Plunger Pump
Inventor: VERESCHAGIN LEONID FEDOROVICH
IPC: F04B23/02
Filed: 1967-07-17
Abstract: 1,175,433. Cylinders. ORDENA TKUDOVOGO KRASNOGO ZNAMENI INSTITUT FIZIKI VYSOKIKN DAVLENY. 17 July, 1967 [23 July, 1966], No. 32735/67. Heading F2T. [Also in Division F1 A high pressure hydraulic pump comprises a plunger 9 reciprocating in a cylinder formed in a member 5, the cylinder ends being sealed during operation by applying oil pressure to the upper surface of a piston 7 which seats on the cylinder member 5. The assembly is mounted in a two-part casing 2, 3. The lower end of cylinder member 5 seats on a sleeve 8 which sealingly engages the plunger 9 and has inlet passages 15 for the liquid to be pumped. An outlet valve 16 seats directly on cylinder member 5. Plunger 9 is reciprocated by a crank 21 acting through a spherical thrust bearing 22.
Patent GB-1166129-A (GB)
Title: Apparatus for heating and drying a web of material
IPC: F26B13/20
Filed: 1967-07-17
Abstract: 1,166,129. Drying web materials. B. KAMPF, E. KAMPF, and H. KAMPF, [trading as ERWIN KAMPF MASCHINENFABRIK]. 17 July, 1967 [16 July, 1966; 10 July, 1967], No. 32746/67. Heading F4G. [Also in Division D1] Apparatus for heating and drying a web of material 2 comprises air nozzle boxes 3 or groups of air-nozzles arranged alternately on opposite sides of the web for the air therefrom to support and guide the web through a tunnel along a sinuous path, the nozzles of each box or group jointly defining a convex curve, the centre of curvature of which is arranged normal to the direction of advance of the web. The bore of each nozzle has a larger cross-section adjacent the web than remote therefrom. Supporting air passes out of the leading and trailing edge zones of the boxes or groups of nozzles over curved guide plates 9.
Patent GB-1513967-A (GB)
Title: Valves for tuning brass musical instruments
IPC: G10D9/04
Filed: 1975-08-08
Abstract: 1513967 Valves S NAKAMURA 8 Aug 1975 [9 Aug 1974] 33231/75 Heading F2V [Also in Division G5] A tuning valve in a brass musical instrument includes a plurality of transfer pipes 26-32, Fig. 2, for connecting different pipe loops 20-25 in series with the basic pipe L. The embodiment shown in Fig. 2, is a rotatable valve having seven discrete angular positions providing a direct connection via transfer pipe 26 between the inlet and outlet ends of pipe L or via pipe loop 20 or a series of pipe loops starting at 20 and associated transfer pipes 27-32, see for example Fig. 4-3. The valve is rotated by depressing combinations of three keys 33-35, Fig. 3 coupled by pivoted levers 40, 41 to a rack 37 and pinion 36 which rotates the valve rotor. A second embodiment, Fig. 5 includes an upper piston valve with a single pipe loop 71 and a lower rotary valve with two sets of pipe loops 68-70 and 72-74, depression of the piston valve connecting pipe loop 71 alone or in series with one, two or all three of the pipe loops 68-70 or 72-74 between the inlet and outlet ends of the basic pipe L. A (two key) actuating mechanism for rotating the rotor, similar to that of the first embodiment, is used. A third embodiment, Figs. 9-11 (not shown), comprises a rotary valve with three transfer pipes connecting up to two pipe loops in series with the basic pipe. Figs. 12-14 (not shown) illustrate a four-key, 12-position-rotary valve.
Patent GB-874973-A (GB)
Title: Improvements relating to packing glands for armoured electric cable
Inventor: RUFFELL REGINALD WILLIAM JOHN
IPC: H02G3/06
Filed: 1958-10-17
Abstract: 874,973. Mechanical couplings for cable armouring. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 24, 1959 [Oct. 17, 1958], No. 33240/58. Class 38 (1). The body of a cable gland comprises three screw-connected parts 7, 13, 8, preferably of aluminium alloy or manganese bronze, and has an internal tapered surface, formed either on the intermediate body part 13 or on a ring in a recess in that part, to clamp the armouring 4 of a cable against a complementary surface on a frusto-conical clamping ring 15 which is recessed to partly contain a sealing washer 16a. The washer 16a and a larger washer 16 which may be of soft P.V.C. or black rubber compound and may be of circular crosssection, are compressed to grip the P.V.C. layers 5, 3 respectively disposed under and over the armouring 4.
Patent GB-1168235-A (GB)
Title: Improvements in or relating to Optical Code Reading Devices
IPC: B61L25/04
Filed: 1968-07-12
Abstract: 1,168,235. Track apparatus. COMPAGNIE GENERALE D'AUTOMATISME. 12 July, 1968 [13 July, 1967; 6 Dec., 1967], No. 33292/68. Heading B7N. [Also in Division G4] Identification information on a vehicle 10 is recorded in binary form in which 0 and 1 are represented by different spacing a and b between adjacent marks, the information being sensed by photo-cells 11, 12 which receive light from areas spaced apart by distance a, and a logic circuit 20 determines the binary output from which photo-cells are illuminated. A start code may be provided to control associated recording or display apparatus so that sensing may take place in either direction.
Patent GB-334381-A (GB)
Abstract: 334,381. Brunsviga-Maschinenwerke Grimme, Natalis, & Co. Akt.-Ges. May 27, 1929, [Convention date]. Zeroizing and particular - setting mechanism. - Separate and independently operable wheels 5 for effecting the direct adjustment of the numeral wheels 3 of a calculating machine are freely mounted on a shaft '6 and frictionally engage the numeral wheels, one adjusting wheel being provided for each numeral wheel. The adjusting wheels project through openings in the casing 7, and they may have rubber surfaces. The bores of the adjusting wheels are larger than the diameter of the shaft 6.
Patent GB-325273-A (GB)
Title: Improvements in or relating to apparatus or systems for the interconversion of acoustical and mechanical vibrations
IPC: E04B1/99
Filed: 1928-11-15
Abstract: 325,273. Columbia Graphophone Co., Ltd., Willans, P. W., and Millington, G. Nov. 15, 1928. Acoustic properties of buildings, controlling.-In order to obtain reverberation effects in broadcast performances, gramophone recording, or public address systems, the source of sound and the responsive vibrating devices, such as a microphone, are so arranged that the sound arrives at the microphone &c. mainly after reflection or scattering from a large number of reflecting surfaces, the mean free path of the sound waves between successive reflections being much shorter than that in an ordinary room. The probability of the existence of waves of comparable intensity but differing considerably in length of path is greatly reduced and interference effects are thus avoided. In one arrangement, Fig. 1, a musical instrument 8 and microphone 9 in a recording studio are separated by a network of reflecting surfaces, comprising horizontal members 10 and vertical members 11, which substantially fills the studio and may extend over the instrument 8 and microphone 9. The reflectors may be of rectangular, polygonal or other regular or irregular cross section. arranged symmetrically or otherwise and are of good reflecting material. In another arrangement, Fig. 4, the microphone 14 is placed in a box 12 filled with layers of reflectors 13 similar to broomsticks. The layers are crossed and the broomsticks running in each direction are staggered so that no straight through path exists. The microphone is placed face downwards in the box and a "lid" of crossed reflectors is placed on the top of the box. The box may be dispensed with and the sticks may the arranged in other manners. In pianoforte recording, the box may be substantially Lhe same shape as a grand piano and can be located immediately above the sound board.
Patent GB-779574-A (GB)
Title: Improvements in or relating to mounts for photographic lenses
IPC: G03B3/02
Filed: 1955-11-23
Abstract: 779,574. Camera lens mounts. GEDDES, J. W., and TAYLOR, TAYLOR & HOBSON, Ltd. Nov. 23, 1955, No. 33599/55. Classes 97(1) and 98(1) A camera lens mount is provided with two external screwthreads A<SP>7</SP>, D<SP>2</SP> of different diameter, each with its corresponding back flange face D<SP>3</SP>, D\ so that the lens may be fitted into either of two cameras having different mechanical back foci and threads of different diameter, the determination of the distance between the two back flange faces being dependent on accurate machining of a separate member secured on the body of the mount. The separate member may carry either or both the screwthreads, and either or both the back flange faces. As shown in Fig. 1, the separate member D carries the larger thread and both back flanges, and is locked on the mount by means of a screw N. Many variations are described. Thus the separate member may be internally threaded to screw on to the smaller thread, and/or the back flange D<SP>1</SP> for the larger thread may be carried by the mount itself or both threads and back flanges may be on the separate member which is secured to the body of the mount. Other means for locking the separate member to the mount are described.
Patent GB-1439883-A (GB)
Title: Apparatus for filtering molten plastics and for extruding plastics strands
IPC: B29C48/05
Filed: 1974-07-31
Abstract: 1439883 Repaceable filter and die unit CF SCHEER & CIE 31 July 1974 [2 Aug 1973] 33814/74 Headings B5A and B5B [Also in Division B1] A die head, for the extrusion of a plurality of molten plastics strands is provided with a combined filter and multiple orifice die unit 50, which is slidably displaceable from the remainder of the die head, transversely of the direction of flow of the plastics material, for cleaning and replacement by a similarly displaceable unit, the displacement being effected on a pair of guide rails 38 which are resiliently loaded, by diaphragm springs 49, to urge the unit into sealing contact with the remainder of the die head at their surfaces at which the sliding is effected. The unit 50, Fig. 2, comprises a filter layer 104 upon a support member 102 having ducts 100, clamped by bolts 52 between shoulders 68, 70, of a die unit part 50a and the die 50b. The unit is slidable against upper and lateral die head parts 26c, 74, Fig. 1, upon the pair of guide rails 38 which are each pivotably located, about rods 36, for the resilient loading against the die head by the diaphragm springs 49 which are urged against the rails 38 by nuts 46 on threaded spindles 42. The die head upper part 26c and the unit part 50a are of hardened steel, and an aluminium bronze part 58 is screwed to the part 50a for the sliding engagement with the part 26c. The lateral die head parts 74, against which the part 50a slides, are also of soft material and are bolted to the die head, with one thereof being adjustable by a screw 78. For changing of the unit, further guide rails 106, 108 are provided on either side of the head so that a cleaned unit 50 can be displaced by a pneumatic cylinder from the rails 108 on to a chamfered entry to the rails 38, and into the head to displace a unit 50 from the head on to the rails 106 for cleaning. Each unit is provided with electric or liquid heating units 80, 110, and the unit 50 to be displaced into the head is heated on the rails 108 by a heater 112. The extruder 10 and die head are also provided with electric or liquid heating jackets 12, 20, 22, and the head is provided with an insulating jacket 24. The plastics strands extruded from the die 50 are drawn through a cooling device 82 from which, during changing of a unit, the strands are diverted to waste by a shoot 96, which is displaceable by a pneumatic cylinder into position beneath the die 50, along slots 94 of a rail 88. Adhesion of the strands to the shoot 96 is prevented by a film of water discharged from a chamber 95.
Patent GB-300912-A (GB)
Title: Improvements relating to the provision of insulating coatings on aluminium or aluminium alloys
IPC: C23C22/66
Filed: 1928-11-19
Abstract: 300,912. Associated Electrical Industries, Ltd., (formerly Metropolitan- Vickers Electrical Co., Ltd.), (Assignees of McCulloch, L.). Nov. 19, 1927, [Convention date]. Electromagnets; insulation. - Insulating coatings are produced on aluminium or aluminium alloys by immersing the latter in an aqueous solution containing in suspension an oxide of calcium or strontium such as lime and an alkaline earth metal salt such as calcium sulphate for a sufficient time for the deposition of a film and then drying the deposited film. Strontium oxide may be used instead of lime and calcium nitrate or chloride or the corresponding strontium salts or a mixture of one or more of these salts instead of calcium sulphate. The coated metal after removal from the path is rinsed in water and baked in an oven at a temperature of about 200‹ C. The dry film may be coated with collodion or an insulating varnish such as a solution of a synthetic or natural resin. The process may be applied to needles or pointers or to dials for recording instruments and the coated metals as an insulation for condensers and between the coils or windings of electric generators, electromagnets, &c.
Patent GB-521521-A (GB)
Title: Improvements in the recovery of oil from the meat of whales
IPC: C11B1/00
Filed: 1938-11-22
Abstract: 521,521. Extracting whale oil. SOUTHERN WHALING & SEALING CO., Ltd., and BOSTOCK, B. R. Nov. 22, 1938, No. 33914. [Class 91] Whale oil is obtained by cooking whale meat in rotary digesters, passing the whole mixture into an oil separator, removing separated oil, discharging the residues through a self-cleaning rotating strainer and/or self-cleaning vibrating strainer to remove the bulk of the suspended solids, and separating the remaining oil in settling tanks. In an example, the meat is cooked under pressure by steam, with or without addition of water in a Hartmann rotary digester ; the oil, glue water, and solids are allowed to flow through the holes of the inner cylinder into the outer cylinder and to an oil separator from which the oil is skimmed off; the hot glue water and solids are blown out into collecting tanks and run continuously into self-cleaning rotating strainers covered with woven wire of 20 meshes per inch, then into collecting tanks and into self-cleaning vibrating strainers having woven wire cloth of 40-50 meshes per inch ; the strained liquid is run into settling tanks having baffle plates and inclined tops from which the oil separated is displaced by water. The solids strained out are mixed, pressed, and dried for use as cattle food. In a modification the mass is passed to the settling tanks from the 20-mesh strainers, and after the oil has been removed the settled solids and glue water are passed to the finer strainers.
Patent GB-393641-A (GB)
Title: Improvements in and relating to apparatus for the production of concrete piles
IPC: E02D5/44
Filed: 1931-12-08
Abstract: 393,641. Piles. GARVENSWERKE MASCHINEN-, PUMPEN-UND WAAGENFABRIK W. GARVENS, 130, Handelskai, Vienna. Dec. 8, 1931, No. 34034. Convention date, Dec. 1. [Class 68 (ii).] Piles are formed in the ground by a pump-like device acting in a preparatory tube and serving to ram the concrete supplied to it. The Figure shows a tube a and a rod b provided at its lower end with a plunger c connected to a follower plunger d by guide-rods e over which the plunger e is fitted. When the parts c, d are in the dotted-line position, concrete is poured down the tube a ; it passes between the parts c, d, and is rammed by their descent. In a modification, the plunger c is cylindrical, and is guided by ribs on the part d, which is connected to the upper end of the part c by wire ropes. In making reinforced piles, there is used a part d smaller in diameter than the diameter of a reinforced cage.