baber/WOPTO huggingface dataset:
Patent GB-773488-A (GB)
Title: Manufacture of free-flowing solid salts of alkenyl aromatic resin sulphonic acids
Inventor: BAUMAN WILLIAM C
IPC: C08F8/44
Filed: 1955-10-19
Abstract: Free-flowing granular salts are prepared from water-soluble alkenyl aromatic resin sulphonic acids in granular form by mixing with the acids an aqueous solution of a highly ionized basic metal compound containing not more than 160 grams of water per gram equivalent of the base, preferably in the presence of an inert, water-immiscible organic liquid, e.g. benzene, chlorobenzene, toluene, ligroin, carbon tetrachloride, ethylene chloride, tetrachloroethylene or methyl chloroform.  The resin sulphonic acids may be prepared from polymers of styrene, ar-vinyltoluene, ar-chlorostyrene, ar-ethylvinylbenzene, alpha - methylstyrene or alpha - methyl - ar - methylstyrene, copolymers of styrene and alpha-methyl-styrene, ar-methylstyrene or ar-chlorostyrene, or copolymers of these with butenes, pentenes or hexenes, by sulphonation with concentrated or fuming sulphuric acid, chlorosulphonic acid, sulphur trioxide or complexes of sulphur trioxide with dioxane or bis-(betachloroethyl) ether, preferably in solution in carbon tetrachloride, tetrachloroethylene or ethylene chloride.  The basic metal compound may be sodium or potassium hydroxide or carbonate, and the solution may be added gradually or rapidly to the resin, or the resin rapidly to the solution, with stirring during or immediately after mixing.
Patent GB-504135-A (GB)
Title: Improvements in or relating to the scavenging of the cylinders of two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1937-11-02
Abstract: 504,135. Cylinders. BAY ERISCHEMOTORENWERKB AKT.-GES. Nov. 2, 1937, No 29993. Convention date, Dec 14, 1936. [Class 7 (ii)] In the cylinder of a two-stroke engine, having uniflow scaveng ing, the passages behind, op posed inlet ports 4, 5 are arranged not only slightly tangential, but also so that one, 4, is directed towards the cylinder head and the other, 5, is transverse to the cylinder axis. They may be tan gential to a different extent.
Patent GB-923029-A (GB)
Title: Perforating machine for producing tear-off perforations
IPC: B26F1/20
Filed: 1960-08-31
Abstract: 923,029. Perforating machines. PRODUKTIONS-SERVICE A.B. Aug. 31, 1960 [Aug. 31, 1959], No. 30067/60. Class 31 (2). A perforating machine for producing tearoff perforations in material 24 comprises a tape-like blank 18 provided with notches 21 and mounted in a roller 4 the edge 23 of the blank 18 being engageable by the members 10 of a roller 9, the blank 18 having an outer knife-like portion 20 of material softer than that of the members 10 so that when the rollers 4, 9 are rotated either before or during a perforating operation, the edge 23 is worn off by the members 10 until the outer edge of the portion 20 conforms to the outline shape of the members 10.
Patent GB-1210004-A (GB)
Title: Quick-release threaded bolt assembly
IPC: F16B35/06
Filed: 1968-06-24
Abstract: 1,210,004. Stud fastenings. NORCO Inc. 24 June, 1968 [12 July, 1967], No. 30111/68. Heading E2B. [Also in Divisions B3 and F2] A quick release bolt assembly 24 comprises an elongate tubular body 30, an abutment member 32 movably carried by one end portion of the body and being shiftable relative to the body in a plane perpendicular to the body axis between a laterally protruding, operative position and a non-protruding, inoperative position by a manually movable shaft 48, external screw threads 54 on the body and a nut 58 carried by the screw threads 54. In use, the abutment member 32 is engaged with one of the two panels (20, 22) (Fig. 1, not shown) through which the body 30 extends, the nut being tightened along the screw threads 54 to clamp the panels (20, 22) together. Release of the 'bolt assembly is effected by slightly unscrewing the nut 58, manually pressing the shaft 48 against the bias of a spring 50 whereby the abutment member 32 is caused to retract into the body 30 then withdrawing the bolt assembly in the direction of the nut 58 from the panels (20, 22). The nut may have an annular groove 60 or a shoulder (100) (Fig. 14, not shown) and the tubular body 30 may be of D-shape cross section so that the body 30 can be prevented from rotation relative to the panels (20, 22) by a key-plate 62 fixed to one of the panels and having a D-shaped aperture accommodating the body 30. The bolt assembly 24 may be engaged by a star washer (86) (Figs. 10 and 12, not shown) having a D-shaped hole (88), the washer being held by a gasket (94) in abutment with a facing (92) on a panel (84) having a sealing bushing (90) through  which the bolt assembly passes to provide a water-tight connection. A domed housing (96) may be provided to enclose the end of the bolt assembly adjacent the star washer.
Patent GB-301824-A (GB)
Abstract: 301,824. B÷hme Akt.-Ges., H. T. Dec. 6, 1927, [Convention date]. Yarns &c., treating with liquids.-The wetting and pentrating power of aqueous treatment liquids in the textile industry is enhanced by the addition of glycol ethers thereto, the degree of dispersion of the reagents used being thereby increased. Ethylene glycol monomethylether is used in an example, but the use of this body in saponaceous treatment baths containing an aromatic or hydroaromatic sulphonic acid is excluded.
Patent GB-1513024-A (GB)
Title: Amplifier circuit arrangement
IPC: H03F3/181
Filed: 1975-07-18
Abstract: 1513024 Amplifiers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 July 1975 [22 July 1974] 30212/75 Heading H3T An amplifier providing output currents I 3 , I 4  at 3 and 4 in response to input currents I 1 , I 2  at 1 and 2 comprises transistors T 1 , T 2 , T 3  and diodes or diode connected transistors D 1 , D 2  connected as shown in box 13. The base-emitter voltages of T 2  and D, are equal so if their emitter areas are equal, I, = I 3  + I 2  so that the output current I 3  equals the difference between the input currents I 2  and I 3 . The voltage across D 2  and the base-emitter junction of T 3  equals that across the base emitter junction of T 1  and D 1  so if the emitter areas of D 1  and D 2  are equal, the base emitter voltages of T 3  and T, are equal. I 4  and I 3  are therefore in the proportion of the emitter areas of T 3  and T 1 . The invention may be used to improve the slew rate of an operational amplifier having an input 9 and output 8. A constant current from source 11 is applied to input 1 and for low frequency input signals, for which capacitor 15 is a high impedance, no input current is applied to input 2. Circuit 13 therefore produces constant currents at 3 and 4. Low frequency signals are amplified by a preamplifier 14 and applied via a current mirror 10 to the bases of transistors T 10  and T 11  in the output stage 12. The constant current from 4 causes a fixed drop in D 6 , so that the input signal is also applied to the base of transistor T 12  forming with T 11  a complementary single-ended push pull output. High frequency signals do not pass through preamplifier 14 but are by-passed through capacitor 15 to input 2 of circuit 13. This results in corresponding variation in the output currents at 3 and 4 which are respectively applied to the bases of transistors T 11  and T 12 . The adverse effects of stray capacitances 19, 22 on slew rate are thereby reduced. Constant current source 11 comprises two branches with the current in each being held in fixed proportion by a current mirror T 6 , T 7 , D 4 . The base-emitter junction of T 9  in one branch is paralleled by the series combination of the larger base-emitter junction of D 5  and a resistor 18. Only one non-zero value of current flow through the circuit 11 will satisfy the voltage constraints.
Patent GB-625058-A (GB)
Title: Process for the simultaneous preparation of sulphuric acid hydrochloric acid and common salt from sodium sulphate and/or bisulphate
IPC: C01D3/04
Filed: 1946-10-10
Abstract: Sulphuric acid, hydrochloric acid and sodium chloride are prepared simultaneously by contacting sodium sulphate and/or bisulphate with chlorine and sulphur dioxide in the presence of water.  Solutions of the salts, e.g. spent solutions from viscose spinning or casting processes, or hydrated or partially or completely dehydrated salts may be used as the starting material. Water or crude sulphuric acid from a previous batch may be added to the starting material in such quantity that a part thereof remains undissolved.  In a modification, sulphur may be used instead of sulphur dioxide.  The sodium chloride obtained may be fed to an electrolysis plant and chlorine produced used for treating the sodium sulphate and/or bisulphate.
Patent GB-633838-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F3/35
Filed: 1946-10-10
Abstract: 633,838. Lifting-jacks. FIRESTONE TIRE & RUBBER CO. Oct. 10, 1946, No. 30259. Con-. vention date, Dec. 28, 1945. [Class 78 (iii)] [Also in Group XXVIII] A lifting jack comprises an inflatable lifting member 10, a connection 14 for effecting a fiuid tight junction with a motor vehicle exhaust pipe, and fluid communication means such as hose pipes 12, 13, between the member 10 and the connection 14. The member 10 is made of rubberised fabric and is formed with a combined outlet and inlet 11. Its walls are so formed that when it is deflated it collapses with its ends lying close together with the walls between. The connection 14 comprises walls 28, 29 of rubberised fabric which are joined at their ends to form a compartment 30 which is connected with the inside of the connection by holes 33. When inflation by the exhaust gases commences, pressure in the compartment 30 forces the wall 28 against the exhaust pipe as shown by the dotted line 34, Fig. 6, so as to cause the connection to grip the pipe. The valve 15 connecting the hose pipes 12, 13 has an outlet to the atmosphere.
Patent GB-621814-A (GB)
Title: Improvements in signs comprising one or more electric discharge tubes
IPC: G09F13/26
Filed: 1946-10-11
Abstract: 621,814. Signs. MAPLE & CO., Ltd., and WILLIAMS, H. Oct. 11, 1946, No. 30360. [Class 3(ii)] [Also in Group XL(a)] A sign comprises a single discharge tube containing bodies provided with material which becomes luminescent under the action of the discharge, and is shaped to form a plurality of sections placed closely adjacent and parallel to one another; or a plurality of discharge tubes are so placed, and each section or discharge tube contains one or more bodies which are shaped so as to form a part of the complete letter, number, word, or other indicia, the sets of bodies in the different sections or discharge tubes being arranged in alignment so as together to constitute the complete indicia. Two separate discharge tubes T, T<SP>1</SP>, of the construction described in Specification 522,510 may be used as in Fig. 1, the bodies B, B<SP>1</SP> in each tube forming one half of the letters depicted. The tubes are supported by holders (not shown) and/or by partly or wholly resilient rests R, R<SP>1</SP>. An opening O in the housing H is covered by a transparent or translucent screen S, Fig. 2, which minimises stray reflection and facilitates cleaning; the screen S may be tinted to reduce the visibility of the discharge which is kept down to a minimum by using a low current density. The electrode glow is hidden by end sections E of the housing H; a thin spacing member may be placed between the tubes T, T<SP>1</SP>. For outdoor use the housing H has an overhanging weather protector P. If a plurality of discharge tubes are used, they may be fed from separate supplies, e.g. separate secondary windings of a common transformer, which may also be placed in the housing M. Baffles may be provided in the discharge device as in Specification 617,832, [Group XL(a)]. The envelope may be circular or non-circular in shape.
Patent GB-697804-A (GB)
Title: Improvements in and relating to the manufacture of synthetic corundum containing titanium
IPC: C30B29/26
Filed: 1950-12-13
Abstract: 697,804. Gems. UNION CARBIDE & CARBON CORPORATION. Dec. 13, 1950 [Dec. 21, 1949], No. 30424/50. Class 43. A synthetic corundum monocrystal containing a titanium compound comprises a series of superposed convex layers wherein the distribution of the compound in alternate layers differs from that in the intermediate layers. Alumina powder mixed with 0.1 to 0.3 per cent titania, with or without a small amount of colouring material, e.g. chromium oxide or ferric oxide, is fused in an oxy-hydrogen flame and then progressively crystallized on a support in the usual manner, but the thermal conditions are made to fluctuate, e.g. by alternately increasing and decreasing at frequent intervals the rate of oxygen flow to the name, with the result that the layers deposited during periods of low oxygen flow have titania across their full width, whereas those deposited during high oxygen flow have titania in annular peripheral zones only. The boule so formed is either annealed or split vertically to relieve internal stresses, and the whole boule or the two parts are treated so that they have the appearance of being asteriated homogeneously. This is achieved by heating them for more than two hours at 1100‹ to 1500‹ C., whereupon a titanium compound precipitates across the full width of the layers 49 deposited during periods of low oxygen flow, but adjacent the periphery only of the intermediate layers 51 due to the above-described titania distribution. By cutting a cabochon 53, Fig. 4, from a whole asteriated boule so that the c-axis is parallel to, and the crown 55 is symmetric with respect to, the geometric axis, the curvature of the crown being approximately the same as that of the layers, all six rays 57, Fig. 6, of the star will extend equally down the sides of the stone to the base. In addition, although the colour in blue sapphire boules is confined to the parts containing the precipitate, the colour distribution in sapphire cabochons cut as above will be ostensibly continuous; a ruby boule is red throughout. The usual seed crystal on which the fused material accumulates is so mounted that its caxis makes the same angle with the longitudinal growth axis as is desired in the boule, i.e. an angle of zero in the case described above; satisfactory cabochons may, however, be cut from whole or half boules having a c-axis at right angles to the longitudinal growth axis as shown in Fig. 5. Alternative methods of achieving fluctuating thermal conditions round the growing boule comprise fluctuating the hydrogen flow rate, or both the oxygen and hydrogen flow rates, or the powder feed rate, or alternately raising and lowering the crystal within the furnace.
Patent GB-727611-A (GB)
Title: Improved process for the recovery of trypsin from pancreas glands
IPC: C12N9/76
Filed: 1952-12-01
Abstract: Crystalline trypsin is obtained from a mixture of comminuted pancreas glands and organie solvents (e.g. insulin residues) by subjecting the gland tissues in the presence of an extracting agent to a mechanical treatment whereby the tissues are distorted and compressed, simultaneously allowing the solvents to penetrate the tissues thoroughly without appreciably further comminuting the tissues, and crystallizing trypsin from the resulting extract. The mechanical treatment is preferably carried out by passing a slurry of the tissues through an impeller pump (illustrated), whereby the fatty substances in the tissues are loosened and contact between the enzymes and the extracting liquid facilitated.  This mechanical treatment can be repeated several times, the mixture being agitated between times and the fat particles removed by skimming or centrifugation.  The extracting liquid is preferably an aqueous solvent in amount 3-30 (e.g. 6-12) parts by weight of gland solids. This solvent should contain at least 80 per cent and preferably more than 96 per cent of water, such a mixture being obtained by diluting the initial organic solvent mixture with or without distillation, as in Specification 727,610.  The process is preferably carried out at 0-15 DEG  C. and pH below 6.5 (desirably below 4); pork glands having a high lipoid content are best treated below 5 DEG  C.  A flow sheet is given for the process.  Examples are given of the process applied to insulin-free beef and pork pancreas residues and fresh pancreas glands.  Trypsin and chymotrypsinogen are crystallized from the extracts using normal techniques.
Patent GB-225384-A (GB)
Title: Improvements in change speed gear
IPC: F02B61/06
Filed: 1923-12-04
Abstract: 225,384. Rowledge, A. J. Dec. 4, 1923. Controlling variable-speed gearing.-A two speed gear used with an internal-combustion engine is operated by hydraulic means under manual control, and using "scavenger" oil, speed change being possible only when the engine throttle, is closed or nearly so, the whole being specially adapted for aircraft. In Fig. 1. d is the hydraulic cylinder which operates the two-speed gear inside casing b alongside, crank case a<1>. Valve e controlled by lever p admits oil to the cylinder from pump g unless valve f connected to the throttle a<2> allows the oil to pass freely by pipe g<3> to tank g<1>. When the throttle is closed, oil from the pump can be directed into the cylinder by movement of the lever p. Thus bv turning valve e, Fig. 2, oil from pipe g<2> passing the valve f by conduit d<8> is directed to either end of the cylinder d by conduits d<3>, d<6> while the other end is connected by conduit d<5> or d<4> and aperture e<3> to exhaust, that is to the tank via pipe g<3>. When the throttle is open, barrel valve f allows the oil to pass freely by conduit d<11> to pipe g<3>. The valve e is shaped as shown in Fig. 4, the lower opening e<4> distributing pressure oil to either end port. the upper opening e<3> allowing exhausted oil to pass away over the end of the valve. The speed is' changed by imparting a part turn to a spindle c, Fig. 2, to which is secured a bell-crank lever c<2>. One arm of the lever c<2> engages the end of the piston rod d<131>, the other arm forming part of spring toggle c<9>. which toggle ensures completion of the motion to fully engage a plate clutch forming part of the speed gear, not shown.
Patent GB-246805-A (GB)
Title: Balance-staff bearing for timepieces
IPC: G04B31/012
Filed: 1925-12-03
Abstract: 246,805. Waterbury Clock Co., (Assignees of Horn, E. H.). Jan. 30, 1925, [Convention date]. Wheels and arbors.-The balance-staff 5 of a time piece has conical hearing ends 6, each with a bearing point 7 and an annular groove 8 having a sharp re-entrant angle 21. The wider angled conical bearing cups 9 in the balance screw 11 and the balance stud 10 are formed with bottoms of cylindrical recesses 12 having re-entrant angles 13.
Patent GB-519953-A (GB)
Title: An improved electrical alarm for indicating failure of a supply current
IPC: G08B21/00
Filed: 1938-10-22
Abstract: 519,953. Detecting faults; current detectors. WRAY, S. Oct. 22, 1938, No. 30567. [Class 37] An alarm for indicating failure of a supply current comprises a transformer 4, connected to the supply, from which a low-voltage current is passed through an electromagnet 7 which holds against a spring an armature 11 which closes the circuit of a bell 22 when released by failure of the supply. The bell circuit includes a battery 18 and switch 21. A lamp 6 is included in the secondary circuit of the transformer 4 and is illuminated when current is passing through the transformer. The apparatus is mounted in a box having a red glass window through which the lamp 6 is, visible and holes in the lid covered with a dust shield to prevent muffling of the sound of the bell. Specification 8559/15, [Class 40 (i)], is referred to. Reference has been directed by the Comptroller to Specification 417,030, [Group XXXV].
Patent GB-1175457-A (GB)
Title: Children's Bibs
Inventor: KRAFT SEYMOUR
IPC: A41B13/10
Filed: 1967-05-01
Abstract: 1,175,457. Child's bib. GOUJON (PAPER TOGS) Ltd. 29 April, 1968 [1 May, 1967; 3 July, 1967], Nos. 20103/67 and 30618/67. Heading A3V. A bib 1 of paper or non-woven bonded fibre material is provided with an adhesive 2 adjacent the neck portion 3. The bib is made from a continuous roll of the material by applying a paper covered adhesive strip at predetermined intervals then cutting the web to form substantially rectangular pieces and stamping out the neck portions 3. In one embodiment perforations 6 form a tongue portion 7 the end of which may be stuck to the adhesive or inserted in two slits 8. In another embodiment (Fig. 1 not shown) an adhesive strip extends from each side of the neck opening to the edge of the bib and the tongue is omitted, the bib being retained in position by the adhesive adhering to the child's clothing. The material may comprise two layers of tissue paper with a layer of a waterproof plastics material sandwiched between them. Alternatively a layer of absorbent material may be substituted for one of the tissue paper layers.
Patent GB-1083579-A (GB)
Title: Improvements in or relating to a vacuum-pan for concentrating and crystallising sugar-fillmass
IPC: C13B25/00
Filed: 1966-07-07
Abstract: 1,083,579. Vacuum pans; crystallization of sugar from syrups by evaporation. LANG. GEPGYAR. July 7, 1966 [July 7, 1965], No. 30641/66. Heading BIB. In a vacuum pan of the type comprising vertical heating tubes 5 surrounding a central gravity tube 6, an upwardly and downwardly movable tube 7 is arranged so that its lower end penetrates into the upper end of the central gravity tube. The pan is suitable for obtaining good circulation during the boiling of sugar syrup to produced a mixture of crystals and syrup (fillmass). Floats 10, connected to tube 7 by arms 9, adjust the upper edge 11 of tube 7 to a constant level below the fillmass level 8. The difference in level is preferably between 22 and 30% of the diameter of tube 7. The vapour evolved from the boiling syrup leaves the top of the pan via droplet separator 18. Water collected in separator 18 flows down pipe 13 into deflector 16, and then flows back into the syrup in the direction of the dotted lines 20.
Patent GB-972244-A (GB)
Title: Polyolefine treatment
Inventor: BAIRD WILLIAM
IPC: C08K5/20
Filed: 1961-08-25
Abstract: The tendency of polyolefines, e.g. isotactic polypropylene and linear or low density polythene, to acquire charges of static electricity is reduced by incorporation of 0.01-5% of (1) an N-(hydroxyalkylated) fatty acid amide, (2) an alkylene oxide condensate of a fatty acid amide, (3) an alkylene oxide condensate of (1), or (4) a mixture of two or more compounds from classes (1) to (3), the fatty acid amide contains 6-22 C. atoms. The amide may be NN-di-(b -hydroxyethyl) lauramide or stearamide and may be incorporated into the molten polyolefine which is then shaped into fibres, films or mouldings. Specification 941,796 is referred to.
Patent GB-204237-A (GB)
Title: Improvements in and relating to means for supporting filaments or filament leads in thermionic tubes or valves
IPC: H01J1/18
Filed: 1922-11-10
Abstract: 204,237. Preston, L. G., Hughes, H. G., and Kirkham, A. L. Nov. 10, 1922. Vacuum tubes.- An insulating support A for a filament or filament lead B comprises a projection C of U or similar shape acting as a rest against downward movement, a projection D of cylindrical or other simple shape preventing sideways movement, and a bent projection E preventing outwards and sideways movement. The lead B may be pinched or bound at F to a lead sealed through the envelope. The filament is secured to the lead below the part embraced by the projection E. A similar series of projections may he provided on the opposite, side of the support to secure a looped filament. The support and projections are preferably made of the same insulating material. The filament mav be removed by raising the lead and sliding it clear.