baber/WOPTO huggingface dataset:
Patent GB-848791-A (GB)
Title: Improvements in or relating to purification of tri-n-butyl phosphate
Inventor: GRIMLEY SAMUEL SLATER
IPC: C07F9/02
Filed: 1954-01-13
Abstract: Commercial tri-n-butyl phosphate is purified by heating it with water made alkaline with an alkali metal hydroxide so as to distil p  off part of the water and substances volatile with water and to transfer acidic substances to the alkaline aqueous phase and then separating the tri-n-butyl phosphate from the remaining aqueous phase.  A small quantity of alkali metal hydroxide sufficient to make the water present up to a 0,5 normal solution is preferably employed and the amount of water used is preferably several times the amount of tri-n-butyl phosphate by volume.  The distillation is preferably continued for not less than 50 minutes and the tri-n-butyl phosphate after separation from the aqueous phase may be washed with water to complete the removal of water-soluble impurities.  Specified impurities which are stated to be removed by the process are ammonia, dibutyl phosphate, butyraldehyde, tetrabutyl pyrophosphate and n-butanol.  In an example 5 volumes of water are used per volume of commercial tri-n-butyl phosphate, sodium hydroxide is used as alkali metal hydroxide in an amount of about 2% of the tri-n-butyl phosphate weight/volume, and the distillation is carried out at 90 DEG  to 100 DEG  C. at atmospheric pressure for about 60 minutes.ALSO:Commercial tri-n-butyl phosphate is purified by heating it with water made alkaline with an alkali metal hydroxide so as to distil off part of the water and substances volatile with water and to transfer acidic substances to the alkaline aqueous phase and then separating the tri-n-butyl phosphate from the remaining aqueous phase.  A small quantity of alkali metal hydroxide sufficient to make the water present up to a 0.5N solution is preferably employed and the amount of water used is preferably several times the amount of tri-n-butyl phosphate by volume.  The distillation is preferably continued for not less than 50 minutes and the tri-n-butyl phosphate after separation from the aqueous phase may be washed with water to complete the removal of water-soluble impurities.  Specified impurities which are removed by the process are ammonia, dibutyl phosphate, butyraldehyde, tetrabutyl pyrophosphate and n-butanol.  In an example 5 volumes of water are used per volume of commercial tri-n-butyl phosphate, sodium hydroxide is used as alkali metal hydroxide in an amount of about 2% of the tri-n-butyl phosphate weight/volume and the distillation is carried out at 90 to 100 DEG C. at atmospheric pressure for about 60 minutes.
Patent GB-981016-A (GB)
Title: Improvements in or relating to tankers
IPC: B63B25/10
Filed: 1964-01-09
Abstract: 981,016. Tankers. PHS. VAN OMMEREN N.V. Jan. 9, 1964 [Jan. 9, 1963; March 1, 1963], No. 1104/64. Headings B7A and B7M. A tanker has an odd number of at least five cargo tanks placed one behind the other in the longitudinal direction of the ship, at least two of the tanks being relatively long and the others substantially half their length. The sequence of cargo tanks may be alternatively small and large, or large-small-small-smalllarge, or (as in Figs. 1 and 2) small (1)-large (2)- large (3)-large (4)-small (5). Preferably ballast tanks (6-13 in Fig. 2) exclusively for ballast are provided at the sides as in Specification 981,017. The ballast tanks may be as long as the large or the small cargo tanks and are arranged so that selected tanks may be ballasted to maintain the trim of the ship under partial loading.
Patent GB-837057-A (GB)
Title: Fluid control gate valve
IPC: F16K3/18
Filed: 1958-01-13
Abstract: 837,057. Valves. YOUNG, W. G. Jan. 13, 1958, No. 1143/58. Class 135. In a gate valve comprising a pair of closures 30, Fig. 3, and an interposed wedge 24, the latter is provided with a spring 35 acting through a key 33 to urge the closures in a direction opposite to that of the wedge when it is withdrawn, until the closures have moved laterally out of contact with the inner ends of sleeves 17, Fig. 1, in the flow passage 11. Each sleeve 17 includes a flange 19, Fig. 2, and a recess 21, Fig. 1, formed between shoulders 22, 23 whilst guides 25, Fig. 2, bolted to the wedge 24 slide on flanges 19; the closures 30, which are slidable in the guides, each embody a slot 32, Fig. 3, that is engaged by one end of the key 33 disposed in a recess 34 in the wedge 24. Each closure incorporates an arcuate shoulder 37. To close the valve the wedge 24 and closures 30 are moved downwardly by the threaded stem 14, Fig. 1, until the shoulders 37, 22 engage to hold the closures whilst the wedge completes its movement, which latter causes lateral motion of the closures into contact with the sleeves 17, the shoulders 37 being urged into the recess 21. To open the valve the wedge is lifted alone, since the closures are held by shoulders 37, until it has risen sufficiently to enable the shoulders 37 to move laterally and clear the recess 21; elevation of the wedge relative to the closures continues until the key 33 is at the bottom of the recess 34 whereupon all these parts rise as a unit without rubbing the ends of the sleeves 17. Lugs 30a, Fig. 3, on each closure strike the base of the valve bonnet to force the closures downwardly should foreign matter prevent the key 33 from reaching the bottom of the recess. In a modification, the shoulders 37 and recesses 21 are inclined inwardly so that lateral movement of the closures is accompanied by a slight vertical motion to produce a wiping action of the closures over the sleeve ends. In another modification, the guides are extended and support a hollow cylinder, which, when the valve is opened, is disposed between the sleeves to form a continuous passage through the valve and prevent erosion of the sleeve ends.
Patent GB-1170152-A (GB)
Title: Pressurized Compositions and Method of Preparation therefor
IPC: A61Q19/00
Filed: 1967-01-09
Abstract: 1,170,152. Crackling cosmetics. REXALL DRUG & CHEMICAL CO. 9 Jan., 1967 [10 Jan., 1966], No. 1202/67. Heading A5B. [Also in Division C4] A pressurised composition which upon release of pressure forms a foam which exhibits a crackling sound when subjected to shear comprises from 75% to 95% by weight of a chlorofluorocarbon propellant system having a vapour pressure of from 10 to 30 p.s.i.g. at 70‹F, the propellant being emulsified as the dispersed phase in an aqueous continuous phase in the presence of a water-dispersible emulsifier in an amount sufficient to yield a stable emulsion. Various propellants and emulsifiers are specified and examples are given of pre-shave and after-shave lotions, colognes, a cleansing cream and an astringent composition.
Patent GB-674776-A (GB)
Title: Inflatable spherical map
IPC: G09B27/08
Filed: 1950-01-17
Abstract: 674,776. Globes. LANDINI, A. Jan. 17, 1950 [June 3, 1949], No. 1252/50. Class 146 (ii). A geographical globe comprises an outer flexible and non-extensible casing 4 upon which the map is printed or otherwise marked and a support 1 secured to the casing by a screw 3 and washer-like member 2 at the South Pole position, the casing having an opening at the North Pole position through which an inflatable air chamber 5 is inserted. The opening 6 is reinforced by a rubber collar 9, which supports an inflation tube 7 closed by a plug 8. A flexible scale 10 can be suspended from the tube 7 by means of a ring 11. The support 1 may be replaced by a cylindrical or tapered spindle which fits into sockets in a box-like member so as to be supported at about 23 degrees to the vertical, the box-like member serving as a container for the globe when not in use. The casing 4 is made from a number of canvas lanes secured together by stitching or adhesive. Specification 351,426 is referred to.
Patent GB-320295-A (GB)
Title: Improvements in car suspension spring dampers
IPC: F16F7/04
Filed: 1929-01-14
Abstract: 320,295. Clark, F. W. Jan. 14, 1929. Vibration-dampers.-In apparatus of the kind in which small movements are substantially free and larger movements are damped by forces which increase as the displacement increases, an open top drum 10 with a slot 11 in one side is secured to the vehicle frame and a disc 17 of frictional material is compressed between the drum and a disc 18 with an arm 19 connected to the axle. Variable pressure is exerted by means of ramps 26 on the back of the disc 18 engaging cams 27 on a plate which is prevented from turning in the drum 10 by a projection 28 fitting the slot 11. The centre bolt and nut apply pressure through the cover 22 and star-shaped spring 21. Two or more frictional elements may be provided.
Patent GB-341707-A (GB)
IPC: B41D1/00
Filed: 1930-01-14
Abstract: 341,707. Embossing-machines. GRœNBERG, J., 13, Stiilerstrasse, Berlin. Jan. 14, 1930, No. 1315. Convention date, Feb. 14, 1929. [Class 100 (ii).] A press for making stereotype matrices is provided with a rigid movable plate capable of setting itself in accordance with the work and arranged to return into its normal position after the completion of the pressing operation. The press-head 2, in the Figure, of a hydraulic press, slidable in guides 4, is provided on its underside with an elastic abutment 1, which may be of rubber, contained in a frame 5 which is guided vertically on the press-head 2 and prevents the elastic abutment from bulging laterally. The frame 5 has a rigid bottom part 5<1> forming the pressure plate and is attached to the press-head 2 by screw bolts 6 which are slidable in the presshead to accommodate uneven surfaces in the pressing operation. An initial stressing of the elastic abutment 1 may be given by tightening the screws 6. In a modification the elastic abutment is formed by a fluid-filled pad attached to the stationary part of the press. In both constructions the elastic abutment forms a pressure storage means which becomes effective when the press remains under load for some time. The adjustable pressure plate, instead of being attached to the press-head, may be arranged on the press-table.
Patent GB-623594-A (GB)
Title: Improvements in or relating to fastener-inserting machines
IPC: A43D71/02
Filed: 1947-01-15
Abstract: 623,594. Nailing. BRITISH UNITED SHOE MACHINERY CO., Ltd., ELLIOTT, H. E., and BARTON, G. C. Jan. 15, 1947, No. 1333. [Class 89 (iii)] A machine for operating along the margin of a workpiece is provided with an edge gauge and feeler bars on each side thereof which are swingable together about an operating tool so that the line joining the tool and the point of contact of the edge gauge with the workpiece remains perpendicular to the edge of the workpiece at that point to ensure operation at a constant distance from the edge. In a boot nailing machine of the kind described in Specification 4471/03, [Class 89]. feeler bars 50 are provided on each side of an edge gauge 11. The edge gauge is adjustable longitudinally in a channel member 13 by a lever 43 carrying a pin 51 engaging slots 35, 39. The feeler bars 50 have rollers 53 at their rear ends engaging open slots in a T-member 55 to which is pivoted at 63 a bell-crank lever 61 one arm of which carries a stud 91 engaging an arcuate guideway 93 in an arm 95 which is coupled to a valve 187 (not shown) controlling the supply of oil to a piston 183 (not shown). This operates through linkage to swing the edge gauge 11 and feelers 50 about an awl member 1, the channel member 13 being provided with an arcuate rib engaging a corresponding recess in an adjustable frame member 21. The edge gauge and feelers are urged forwardly by springs 27 and 65 respectively. If the feelers are unequally engaged by a workpiece, the T-member 55 and hence the bell-crank lever 61 will be rocked to operate the valve and piston to restore the edge gauge and feelers to a normal position relative to the workpiece. The awl 1 is secured to a bar 107 coupled to an actuator 115 and slidable in a lever 109 which is pivoted on a shaft 125 secured in a bracket 129. The piston 183 (not shown) acts to swing the bracket 129 with the edge gauge 11 about the awl, being guided by an arcuate rib 131 engaging a groove in a laterally adjustable member 133. The lever 109 is provided with a positioning arm 127 having a double-bevelled end 136 engaging loosely between faces 167 on the bracket 129 to allow the awl to yield rearwardly with the edge gauge. As the awl moves the work to nailing position, an adjustable forked lever 171 is moved to engage the flat-sided portion of the arm 127 to hold it positively.
Patent GB-486655-A (GB)
Title: Improvements in or relating to microphones
IPC: A24F15/18
Filed: 1938-01-14
Abstract: 486,655. Microphones. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 14, 1938, No. 1337. Convention date, Jan. 14,1937. [Class 40 (iv)] In a microphone having a windscreen mounted in front of the vibratable member, the windscreen is perforated and is so constructed and arranged as to effect withdrawal of air from the space between itself and the vibratable member upon the passage of a current of air past the windscreen. As shown, the windscreen 9 is additional to a protective screen 5 secured to one end of a casing 1 enclosing a ribbon diaphragm 3. The screen 9 is of spherical shape and has an inwardlydirected flange 11 formed with a cylindrical peripheral portion 13 provided with apertures 15 and an inwardly-directed flange 17. The windscreen 9 is secured to the casing 1 by means of a clamping ring 7 which engages offset portions 21 on resilient legs 19 soldered or otherwise secured to the screen 9, the arrangement being such that the flange 17 seats on the outer surface of the ring 7. The motion of the air produces a region of relatively low pressure at points B adjacent the apertures 15 and a consequent withdrawal of air from the space inside the windscreen. The protective cover 5 may be dispensed with and the screen 9 may be formed on the diameter of the peripheral portion 13, the flange 11 being omitted.
Patent GB-157425-A (GB)
Title: Method of and apparatus for drying textile materials
IPC: F26B13/00
Filed: 1921-01-10
Abstract: 157,425. Krantz, H. [Firm of]. Jan. 15, 1917, [Convention date]. Drying fabrics.-Textile and like materials are dried by the passage of steam through the material, which mechanically expels the bulk of the water, the remainder being removed by vacuum and heat. Fig. 2 shows fabric-drying means comprising a pipe g through a slot in which steam is passed through the fabric as it passes over rollers i.
Patent GB-722916-A (GB)
Title: Process for producing a hard and wear-resistant surface on ferrous bodies
IPC: C23C10/36
Filed: 1952-01-17
Abstract: The process of Specification 722,915 is modified in that at least one metal of the group titanium, columbium, tantalum, molybdenum and tungsten is employed instead of vanadium. Alternatively, two or more metals of the group titanium, columbium, tantalum, molybdenum, tungsten, vanadium and chromium are employed.
Patent GB-1171024-A (GB)
Title: Improvements in and relating to the Production of Granular Frozen Products from Liquids.
Inventor: HANNY JOST
IPC: A23P10/20
Filed: 1967-01-11
Abstract: 1,171,024. Freezing liquids. SULZER BROS. Ltd. 11 Jan., 1967 [11 Jan., 1966], No. 1449/67. Heading F4H. Frozen liquid is obtained in granular form by atomizing the liquid into a cold gas flow having a pressure greater than one atmosphere so that the droplets freeze without contacting any solid surface, further cooling the frozen droplets and then separating the frozen droplets from the gas flow. As shown, liquid is sprayed from an atomizer 5 into a chamber 2 and air from a blower 12 passes into the top of the chamber 2 via tubes 11 of a heat exchanger 3 and baffles 6 which impart to it a swirling motion. The granular frozen product from the chamber passes through a tube 16 of heat exchanger 3 to a cyclone separator 1 from which the product is discharged by a worm 23 and air returns to the blower via pipes 18, 19. Heat exchanger 3 comprises the evaporator of a refrigeration system 8, 9, 10. The system is maintained at super-atmospheric pressure by a compressor 15 supplying make-up air to the downstream side of the blower. In a first modification (Fig. 2, not shown), the pressurizing air from the compressor is supplied to the atmoizer which is in the form of an ejector and induces a flow of liquid thereto, part of the circulating air being passed through a fluid motor which drives the impeller. In a further modification (Fig. 6, not shown), two freezing chambers are connected to a common heat exchanger-separator unit and cold gas is passed upwardly through each chamber, throttling means being provided so that for freezing the gas pressure is low, while for ejecting the frozen product the pressure is increased. Preferably, freezing takes place in one chamber while ejection takes place in the other. The process may be carried out in serially connected freezing stages, separation taking place either between each stage (Fig. 3, not shown) or only after the final stage (Fig. 4, not shown).
Patent GB-555139-A (GB)
Title: Apparatus for indicating minimum or maximum flow of fluids
IPC: G01F1/22
Filed: 1942-02-04
Abstract: 555,139. Fluid-flow indicators. ANDERSON, D. B. Feb. 4, 1942, No. 1456. [Class 69 (iy] A fluid flow indicator comprises an external graduated member, a stop movable relatively thereto, an abutment with which one of the relatively movable members is adapted to contact, and a member movable by the flow and coupled to the abutment or one of the relatively movable parts, means being provided whereby, according to whether the indicator is to act as a minimum or maximum flow indicator, the stop is displaced relative to the graduated member, as the flow decreases or increases, but cannot move in the reverse direction as the flow increases or diminishes. In Figs. 1 and 3 a taper throat is provided in two sections 1, 2 of different angle, the section 2 preferably having a brass liner or being plated with Cd, Cr, Ni, &c., and a piston 3, a disc or the like, movable in the throat by the fluid flow, is coupled to a guide rod 4 sliding in a sleeve 5 with which a head 4a co-operates to act as a dashpot ; a wire 7 passes from the. rod 4 over a pulley 10 to an abutment weight 9 slidable over a graduated T or other section standard 11. As the fluid flow decreases, a stop 12 is raised on the standard 11 by. the abutment 9, but when the now increases, friction means, or a pawl lever 14 co-operating with ratchet teeth 22, prevent return of the stop. The apparatus may be arranged horizontally, a spring or counterweight then acting to return the piston &c. 3 ; a rod may replace the wire 7. The indicator body 16 may be cast in one piece, as also the cover 6 and sleeve 5. In Fig. 5, the indicator comprises a swinging gate 19 moved by the fluid flow and connected by a lever 20 and link 23 to an abutment 9 with rollers running on a graduated guide 33 ; the abutment moves a stop 12 in one direction, while co-operating teeth on the guide and stop prevent return of the latter. The graduated member may move with the wire 7 or equivalent, the abutment then being stationary.
Patent GB-669702-A (GB)
Title: Improvements in cascade-connected semi-conductor amplifiers
IPC: H03F3/343
Filed: 1950-01-19
Abstract: 669,702. Semi-conductor amplifiers. RADIO CORPORATION OF AMERICA. Jan. 19, 1950 [Jan. 22, 1949], No. 1477/50. Class 40 (iv). A cascade-connected amplifier comprises two transistors each having base, emitter and collector electrodes, the input being connected between the first base electrode and a point of fixed potential, the emitter electrodes being conductively connected together and the output circuit being connected to the second collector electrode. Fig. 3 shows a first transistor device comprising base electrode 18, emitter electrode 16 and collector electrode 17, and a second transistor comprising base, emitter and collector electrode 4, 2 and 3 respectively. The input signal is applied from source 22 in series with resistance 25 to the base electrode of the first transistor, the associated collector being earthed for signal currents. The output is taken from the emitter, which is connected to the emitter of the second transistor device, the base electrode is earthed, and the final output is taken from across resistance 32 in the collector circuit of the second transistor. The arrangement results in increased gain and facilitates impedance matching for the input and output circuits, both of which may be made to have an impedance of the order of 5000 ohms. An alternative arrangement is described utilizing transformer coupling in the input and output circuits, and only one battery being used to supply both collector electrodes.
Patent GB-153204-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/08
Filed: 1920-01-16
Abstract: 153,204. Doble, J. A. Jan. 16, 1920. Spray burners.-In a liquid fuel burner the fuel is delivered through a pipe 12 on to a rotating cup 8 driven by a motor 6. A fan 13 secured below the cup drives air up past the periphery of the cup where it mixes with the spray discharge from the side wall 9. At one side of the casing 2 is an ignition chamber having a bottom wall 14 an upper wall 15 from which depends a curved wall 16, and a near wall 19 through which projects an electrode 21. A mixture of air and fuel set in motion by frictional contact with the disk is forced into this chamber and ignited by a spark between the electrode 21 and the wall 9 of the cup 8. Fouling of the spark gap is prevented by rotation of the electrode formed by the cup, and the ignited combustible mixture is blown into the casing 2 thus igniting the entire mixture, the flame issuing through a discharge outlet 4 which is flared and flattened horizontally.
Patent GB-547564-A (GB)
Title: Improvements in and relating to preparations for the treatment of burns, lesions and the like
Filed: 1941-02-05
Abstract: 547,564. Diarylmethane derivatives ; acridine dyes ; bactericides ; bismuth, copper, mercury and zinc salts. WIESNER; B. P. H., CRAVEN, A. B., WARD BLENKINSOP & CO., Ltd., and YORKSHIRE DYEWARE & CHEMICAL CO., Ltd. Feb. 5, 1941, No. 1509. [Class 2 (iii)] [Also in Group VI] Compounds intended 'for the treatment of burns and other lesions are prepared from diarylmethanes derived from formaldehyde and phenolsulphonic acids, including their nuclear alkylated derivatives, carboxyphenolsulphonic acids, naphthalene mono- and di-sulphonic acids, hydroxy naphthalene sulphonic acids and their halogen derivatives. The diarylmethanes are (1) reacted in aqueous solution with a bactericidal and/or physiologically useful organic base ; the resulting solution may be evaporated to dryness and buffers or dry acid substances may be added : (2) converted into salts of zinc, bismuth, copper or mercury by treating with oxides or hydrates of the metals. In a further modification, diarylmethane derivatives are obtained by condensing molecular proportions of formaldehyde, or sulphonic acid of a bactericidal and/or physiologically useful organic base and a phenolsulphonic acid, carboxyphenolsulphonic acid, naphthalenesulphonic acid, hydroxynaphthalene sulphonic acid or halogen derivative thereof. Specified organic bases are : benzocaine, acriflavine, proflavine, auramine, methylviolet, malachite green and p-aminobenzenesulphonamide. In examples : (1) phenolsulphonic acid is reacted in aqueous solution with malachite green ; the acidity of the resulting solution is reduced with caustic soda or potassium tartrate : (2) the diarylmethane obtained from formaldehyde and naphthalene-#- sulphonic acid is mixed, in aqueous solution with a paste of acriflavine base : (3) a diarylmethane is prepared from formaldehyde, sulphonated methyl violet base and #-naphtholsulphonic acid ; the insoluble product is brought into solution by mixing with a diarylmethane prepared from a naphthalene sulphonic acid : (4) a zinc salt is formed by mixing a zinc oxide paste with a diarylmethane derived from phenolsulphonic acid.