baber/WOPTO huggingface dataset:
Patent GB-230530-A (GB)
Title: Softening of acid treated fabrics
IPC: D06M11/11
Filed: 1923-12-06
Abstract: 230,530. Tootal Broadhurst Lee Co., Ltd., Foulds, R. P., and Barrett, F. L. Dec. 6, 1923. Liquids, treating with; designs, producing.- Fabrics which have been parchmentized by the action of strong sulphuric acid, or sulphuric acid and formaldehyde, as described in Specification 200,881, are softened or rendered less harsh by treatment with sulphuric acid of about 80‹- 100‹ Tw. or with substances having similar properties to sulphuric acid but of insufficient strength to effect parchmentization, such as phosphoric. nitric, or hydrochloric acids, or zinc chloride. The fabric may be embossed or compressed over the whole surface or in patterns before or after parchmentization and before the treatment with the weak acid.
Patent GB-953078-A (GB)
Title: Improvements relating to telephone instruments
Inventor: BROWN RONALD ERNEST CHARLES
IPC: H04M1/23
Filed: 1960-09-06
Abstract: 953,078. Sets. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 19, 1961 [Sept. 6, 1960], No. 30711/60. Heading H4J. A telephone instrument is provided with a withdrawable drawer containing switching apparatus. The drawer 4 may be accommodated in the plinth unit 3 described in Specification 929,178 and it comprises a shallow box having an upper side 6 through which operating members 8 for the switches project. Members 8 may be located in the troughs (Figs. 5 and 6, not shown) or as shown, in the forward facing surfaces of a corrugated upper side. Side 6 may be pivoted about a vertical side of the box or it may be formed integral therewith in which case the bottom of the box is left open. Connecting leads individual to each switch may be used (Fig. 3, not shown) or a co-ordinate array of connecting leads may be adopted in which case operating members 8 coincide with the cross-points of the array (Fig. 4, not shown). The switching apparatus may be for providing direct access to other substations in a P.A.X., or part of keysending equipment in a public system.
Patent GB-343875-A (GB)
Title: Process for producing metallic layers
IPC: C23C16/02
Filed: 1929-10-11
Abstract: Metallic layers are formed in a vacuum by first depositing by sublimation a metal of high vapour pressure such as magnesium, aluminium, iron, cobalt, calcium or mercury and then causing the deposited metal to react with a volatile compound of a metal electronegative with respect to the deposited metal, such as nickel, copper, tungsten, chromium or arsenic.  The metal first deposited is displaced by the second metal, a layer of which is formed.  In an example magnesium is deposited by sublimation and then heated in the presence of nickel chloride vapour, nickel being deposited and magnesium chloride formed which may be removed if desired by distillation or washing with suitable solvents.  The process may be employed to produce stable equipotential cathodes in electron discharge apparatus, for coating the vacuum areas in a vacuum flask, the body of which may be made of mica to enable the flask to withstand very high temperatures, or for forming electric condensers or electric resistances.
Patent GB-1365562-A (GB)
Title: Solutions of penicillin derivates and process for preparing same
IPC: C07D499/00
Filed: 1971-07-01
Abstract: 1365562 α-Halocarbonyl-penicillins CHINOIN GYOGYSZER-ES VEGYESZETI TERMEKEK GYARA RT 1 July 1971 [3 July 1970] 30959/71 Heading C2A [Also in Division C3] In a process for producing novel penicillin derivatives in solution in an anhydrous solvent, a dicarboxylic acid dihalide of Formula (I) is reacted with a 6-amino- or 6-α-amino(substituted acetamido)-penicillanic acid of Formula (II) or a salt, ester or N-trimethylsilyl derivative thereof, in an anhydrous medium in the presence of a weak base, and the resulting novel penicillin derivative of Formula (III)  (III) or its salt, ester or N-trimethylsilyl derivative is then recovered as a solution in the anhydrous medium; wherein R is an optionally substituted aromatic, heterocyclic, aliphatic or alicyclic group; X is a halogen atom; R<SP>1</SP> is a hydrogen atom or a group in which n is 0, 1 or 2 and R<SP>3</SP> has the same meaning as R above; and R<SP>2</SP> is the residue of the aforesaid 6-amino- or 6-α-amino (substituted acetamido)-penicillanic acid. The anhydrous medium is preferably a hydroxyl-group-free organic solvent, e.g. methylene chloride, chloroform, carbon tetrachloride, acetonitrile or dichloroethane. The weak base may be N,N-dimethylaniline, pyridine or N- ethylmorpholine. The reaction is best conducted at lowered temperature (e.g. - 30‹ to - 20‹ C.). The starting penicillanic acid (II) and the product (III) may be in the form of their base salts (e.g. with Na, K or an organic amine) or their esters, preferably a silyl ester such as the trimethylsilyl ester.
Patent GB-747398-A (GB)
Title: Improvements in or relating to pumps, blowers, compressors, fluid drives or the like which have impellers
IPC: F04D29/22
Filed: 1952-12-05
Abstract: 747,398. Centrifugal pumps &c. GES. DER L. VON ROLL'SCHEN EISENWERKE AKT.-GES. Dec. 5, 1952 [Dec. 8, 1951], No. 30983/52. Class 110(1) A pump, blower or compressor comprises a radial-flow impeller disposed on a shaft and bearing a second radial-flow impeller, the entries to the two impellers being at different radial distances from the axis of the system and the inflow directions being, opposite, means being provided between the impellers for controlling the flow. In the embodiment shown in Fig. 2, the main impeller 8 carries a secondary impeller 6 which discharges into the main impeller by way of a stationary guide 7, Fig. 3 shows an embodiment in which the main impeller 11 carries a centripetal impeller 12 and a centrifugal impeller 9. In a modification, the centripetal impeller is replaced by a stationary guide or diffuser. The secondary impeller may run freely on the main impeller and be arranged to be coupled at will to the latter. A number of double impellers may be connected in series.
Patent GB-819985-A (GB)
Title: Improvements in and relating to wheel rims
IPC: B60B25/22
Filed: 1957-10-03
Abstract: 819,985. Tubeless tyre wheel rims. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN. Oct. 3, 1957 [Oct. 3, 1956; Aug. 9, 1957], No. 31073/57. Class 144 (2). A divisible rim for a tubeless tyre comprises a detachable endless ring 8 providing a conical bead seating surface, and a separate detachable endless bead retaining flange 7 retained on the rim base 1 by a split locking ring 6 engaged in a rim base gutter 5, a sealing gasket 10 being provided between and in contact with the detachable ring 8, the detachable flange 7 and the rim base 1 so that on movement of the ring 8 towards the flange 7 on inflation of the tyre the gasket 10 is compressed to seal the gap between the rim parts. As shown the rim base 1 has an integral conical bead seat 3 terminating in an integral retaining flange 2 and connecting into a cylindrical base portion 4 on which the detachable ring 8 slides with clearance. The ring 8 may be chamfered as at 15, Fig. 1, to overlie a circular-section gasket 10 or, as shown in Fig. 5, the ring 8 may be rounded as at 16 to co-operate with an L-section gasket 10. In each case the ring may have an axial extension 11 overlying the gasket to abut the flange 7 and thereby limit the compression of the gasket. Fig. 4 shows the ring 8 with a radial flange 14 to seat the heel of the tyre bead 9<SP>1</SP> and prevent slipping of the ring axially beneath the bead, the ring being recessed at 17 to receive an oval-section gasket 10. To prevent circumferential displacement, the flange 7 may have a lug 12 to engage in the split of the locking ring, and likewise to prevent circumferential slip of the ring 8, cooperating lugs and recesses may be formed in the ring 8 and rim base 1 respectively. The ring 8 may seat in a recess in the base 1 of sufficient axial width to permit the necessary displacement of the ring for assembly or removal of the locking ring 6.
Patent GB-675752-A (GB)
Title: Improvements in or relating to electrical resistors
Inventor: DRAKE CYRIL FRANCIS
IPC: H03D3/08
Filed: 1947-11-24
Abstract: 675,752. Resistance coatings and deposits. STANDARD TELEPHONES & CABLES, Ltd. Nov. 19, 1948 [Nov. 24, 1947], No. 31096/47. Class 37. [Also in Group XV] A method of producing a resistor includes the steps of (1) mixing a chemical compound having electronic semi-conducting properties (i.e. a non- electrolytic compound which deviates from strict stoichiometric form), for example, cadmium oxide, with a medium in which it is insoluble, for example, glycerol, oil or water; (2) adding to the mixture so obtained a substance soluble in the said medium, for example, gelatine; (3) milling into a paste to obtain dispersion of the compound; (4) printing or otherwise depositing the said paste on an insulating base, for example, resin-impregnated paper, and drying. The process may be modified by making the initial mixture consist of the stated medium and a mixture of two or more compounds, for example, cadmium oxide and zinc oxide, or making the initial mixture consist of the stated medium and a solid solution of two or more compounds, for example calcium oxide in cadmium oxide. The invention provides a resistor particularly suitable for inclusion in printed circuits and a preferred form of such circuit is as disclosed in Specification 651,780. In one embodiment cadmium carbonate is heated at 450‹ C. for 1 hour in air and the resulting cadmium oxide mixed into a paste with glycerol thickened with gelatine and milled until the oxide is completely dispersed and a wetting- agent of the form disclosed in Specification 675,753 is then added. The resistance ink thus prepared is printed on the insulating base and dried. The assembly may then be subjected to an applied pressure to reduce the resistivity of the deposit. In a further embodiment a mixture of cadmium oxide and zinc oxide is milled with paraffin oil and stearic acid then added to produce a smooth cream.
Patent GB-175355-A (GB)
Title: Improvements in electric motors
IPC: H02K17/16
Filed: 1920-11-04
Abstract: 175,355. Lancashire Dynamo & Motor Co., Ltd., and McLeod, R. S. Nov. 4, 1920. Casings; coils and conductors.-In alternating- current and continuous-current motors, the end connectors of the rotor conductors are located outside the stator casing and the ends of the casing are closed by fixed annular extensions of the stator casing and rotating end plates which form a running joint with the fixed annular ex. tensions. Fig. 1 shows the rotor bars a3 and the end-connectors R of a squirrel-cage rotor. The rotor end plate E forms a running joint d1 with the extension D of the stator casing C; the end cover D is provided with arms d2 to carry the rotor bearings. The end-connectors are preferably a modified form of the end connectors described in Specification 13504/08. In a modification, Fig. 4, the end plate is in two parts E1, E, separated by insulation so that the annular partition E, may be made of high-resistance material and the current between the rotor bars limited to this portion of the end plate.
Patent GB-489913-A (GB)
Title: Arrangement for the testing of magnetizable cables, wires, tubes, rod-shaped material or the like for faulty points with the aid of magnetic strayfields
IPC: G01N27/90
Filed: 1937-11-13
Abstract: 489,913. Magnetic tests ; electromagnets. BERTHOLD, R., and SCHLEIP, S. Nov. 13, 1937, No. 31248. Convention date, Dec. 2, 1936. [Class 37] [Also in Group XXXV] Stray-field testing apparatus for flaws in magnetizable cables, tubes and rod material generally, comprises a magnet core 1 with hinged polepieces 3, 3<1>, together with one or a series of oscillating or rotatable exploring- coils 6 shaped to conform with the surface of the test-piece. The pole-shoes can receive insert pieces shaped to the profile of the testpiece so that a close fit for any contour under test can be obtained. The coils 6 may be flexible to obtain the desired close fitting.
Patent GB-1028546-A (GB)
Title: Extreme value switching device
IPC: H02J7/00
Filed: 1963-08-08
Abstract: 1,028,546. Switching systems; battery changing systems. VARTA DEUTSCHE EDISON AKKUMULATOREN - COMPANY G.m.b.H. Aug. 8, 1963 [Nov. 17, 1962], No. 31269/63. Heading H2H. A circuit initiating a switching operation when a voltage passes a determined value comprises a capacitor 1 and a diode 2 across a source 4, 5. The capacitor, prevented from charging by the diode, is charged when a switch 3 is temporarily closed. If the source voltage falls, the capacitor discharges to the new value but when the voltage rises a Zener diode 9 breaks down and operates a relay 8. The operation of the circuit may be reversed to operate on falling voltages by reversing the polarity of the diodes 2, 9, in which case the switch 3 may be omitted (Fig. 2, not shown). The arrangement may be utilized in a circuit (Fig. 3, not shown) to cut off the charging current to an alkaline gas-tight battery when the battery voltage rises prior to gassing.
Patent GB-314588-A (GB)
Abstract: 314,588. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). March 31, 1928. Resin derivatives of unknown constitution; hydrocarbons; sulphonic acids.-Resins, resin acids or condensation products of resins with phenols are heated with a dehydrating agent, e.g. zinc chloride, either alone or in the presence of aralkyl halogenides. On heating, water and carbon monoxide are split off at a relatively low temperature; an inflammable gas, probably a hydrocarbon, is also evolved, if an aralkyl halogenide is present. The products may be sulphonated. Aqueous solutions of the sulphonated products precipitate gelatine.
Patent GB-383741-A (GB)
Title: A manufacture of a sulphuric acid ester suitable for use in dyeing and printing textile fibres
IPC: C09B9/02
Filed: 1931-11-13
Abstract: Anthraquinoneazines.--A freely soluble acid sulphuric ester, presumably the tetrasulphuric ester of tetrahydro - 1 : 2 : 2<1> : 1<1> - dianthraquinoneazine, is made by treating 1 : 2 : 2<1> : 1<1>-dianthraquinoneazine with an addition product of a tertiary base and sulphur trioxide in presence of excess of the tertiary base and of a metal.  In an example, the azine is treated with sulphur trioxide, pyridine, and copper. Specifications 186,057, 247,787, 251,491, 261,139, 272,924, and 334,902, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-601292-A (GB)
Title: Improvements in the bleaching of ground wood pulp
IPC: D21C9/08
Filed: 1945-11-22
Abstract: Mechanical wood pulp is bleached by treatment with a water-soluble acid at a pH below 3 and then with a peroxide under alkaline conditions.  The acid may be a water-soluble mineral acid, e.g. hydrochloric, sulphuric or phosphoric acid.  In an example, mechanical pulp is treated with hydrochloric acid at a pH of 2.5 and then with hydrogen peroxide in the presence of sodium hydroxide and silicate of soda.
Patent GB-635511-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/18
Filed: 1947-11-29
Abstract: 635,511. Knitting-machines. BLACKBURN & SONS, Ltd., G., and TOWERS, E. J. Nov, 29, 1947, No. 31614. [Class 74 (ii)] An elastic yarn feeding device for a circular machine comprises two rotary geared wheels 11, 12 between which the yarn is fed, and a wheel 10, for rotating the geared wheels, frictionally driven from a revolving plate 1, the wheels 10 . . . 12 being mounted in a bracket 6 slidably supported so that the wheel 10 can be moved towards and away from the centre of the plate 1 to vary the speed of the geared wheels and the rate of feeding the yarn. The wheel 10 is supported in the bracket 6 under the influence of a spring 20, which urges it into contact with the plate 1, and is also mounted to drive the shaft of the wheel 11. The wheel 12 is secured on a lever 13 pivoted to the bracket 6 and is urged into mesh with the wheel 11 by a spring 15. A threaded shaft 21 is adapted to engage the bracket 6 and is rotated by pawl and ratchet mechanism, controlled from a pattern drum or chain, to move the bracket and wheel 10 towards or away from the centre of the plate 1 and thereby vary the rate of delivery of the yarn.
Patent GB-1077064-A (GB)
Title: Nuclear reactors
Inventor: BRADLEY NORMAN
IPC: G21C15/02
Filed: 1963-08-09
Abstract: 1,077,064. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 4, 1964 [Aug. 9, 1963], No. 31653/63. Heading G6C. A nuclear reactor having a mass of liquid moderator contained within a closed vessel and spaced from the upper interior of the vessel under normal operating conditions, e.g. a " calandria and pressure tube " reactor or a " boiling water " reactor, also means for circulating moderator from the mass through cooling means thence back to the mass, has means in the closed vessel defining a lower chamber for containing the mass of moderator and an upper chamber through which at least part of the cooled moderator is returned to the mass, arranged so that some of the upper internal surfaces of the vessel are cooled by moderator flow. In the embodiment described, a calandria and pressure tube reactor (1) has a mass (2) of heavy water moderator contained within a calandria vessel (3), and spaced from the cover (5) of the vessel (3). The vessel (3), which is of aluminium alloy, is penetrated from top to bottom by a lattice of open-ended calandria tubes (12), also of aluminium alloy, each tube (12) locating a pressure tube (13) housing a cluster of fuel elements (14). Feed water is supplied under pressure to inlets (15) at the lower ends of the pressure tubes (13) and is boiled off in passage over the fuel elements (14). Heavy water is continuously removed from the mass (2) by way of a pipe (9) and passed through a cooler (17) before being returned via a pump (6) to the mass (2) by divided flow through two pipes (7) and (8). One pipe (7) leads directly to the mass (2) whereas the other pipe (8) extends upwardly through the vessel (3) to a chamber (10) between the cover (5) and a membrane (11). The heavy water fed to the chamber (10) leaves by way of a large number of flow restriction holes (18) penetrating sleevelike barriers (19) disposed coaxially about each calandria tube (12) and extending between the cover (5) and membrane (11). Also disposed coaxially about each calandria tube (12) and depending from the membrane (11) are guide sleeves (20). The relative sizes of the holes (18) and the bore of the pipe (8) extending upwardly through the vessel (3) are such that the chamber (10) is always filled with flowing heavy water which removes heat from the cover (5) and maintains its heat content at a tolerable level. Heavy water escaping from the holes (18) flows down the annuli defined by the upper ends of the calandria tubes (12) and the guide sleeves (20) thereby providing for cooling of those parts of the tubes disposed above the normal level of the moderator.
Patent GB-697245-A (GB)
Title: Improvements in coal-cutters
Inventor: JACKSON DAVID
IPC: E21C31/02
Filed: 1950-12-29
Abstract: 697,245. Endless chain machines. MAVOR & COULSON, Ltd. Dec. 10, 1951 [Dec. 29, 1950; Nov. 6, 1951], Nos. 31661/50 and 25938/51. Class 68(i) In an endless chain mining machine that is mounted for movement along the face on the side forms 6 of a conveyer, there is provided below and supported from the main cutter jib 7 an auxiliary jib 21 for the purpose of removing the layer of mineral between the level of the main cutter jib and the floor. The cutter chain of the auxiliary jib is driven by that of the main jib through the. interconnected coaxially disposed outer sprockets 10, 23 of the jibs and is so positioned in respect of the chain of the main jib that no intervening slab of material is left between the kerfs formed by the two cutter chains. To facilitate flitting, the main jib is secured in the turret head of the machine by a normally locked spigot-and-socket connection which can be released so as to permit of rotation of the main jib about the longitudinal axis of the spigot to position the auxiliary jib above the main jib so as to permit rotation of the jib assembly about the vertical axis of the turret until over the conveyer.
Patent GB-1183504-A (GB)
Title: New Pregnene-21-Carboxylic Acid Esters
Inventor: CLARKSON RICHARD
IPC: A61K31/573
Filed: 1967-07-10
Abstract: 1,183,504. Cardiac medicines comprising steroids. IMPERIAL CHEMICAL INDUSTRIES Ltd. 24 June, 1968 [10 July, 1967], No. 31671/67. Heading A5B. [Also in Division C2] Pharmaceutical compositions comprise one or more steroids of formula wherein R<SP>1</SP> and R<SP>2</SP> are each alkyl or are joined together with the intervening nitrogen atom to form a heterocyclic ring, A is alkylene, R<SP>3</SP> is hydrogen and R<SP>4</SP> is hydroxy, acyloxy, glycosyloxy or acylated glycosyloxy, or R<SP>3</SP> and R<SP>4</SP> together with the intervening carbon atom form the carbonyl group, and wherein the steroid nucleus from carbon atoms 1-19 optionally bears one or more additional substituents selected from oxo, hydroxy, acyloxy and alkylenedioxy radicals, and wherein said nucleus optionally contains one or more olefinic double bonds, or a salt thereof with an organic or inorganic acid. These compounds possess digitalis-like activity, and the compositions may be administered orally or parenterally. The compositions may additionally include #- adrenergic blocking agents (e.g. propanolol), other cardiotonic agents (e.g. digoxin, digitalis preparations, digitoxin, laratoside C), diuretics (e.g. frusemide, ethacrymic acid), thiazide diuretics (e.g. hydrochlorothiazide, bendrofluazide), aldosterone antagonists (e.g. spironolactone), coronary vasodilators (e.g. glyceryl trinitrate, pentaerythritol tetranitrate, sorbide nitrate), .xanthine derivatives (e.g. theophylline, theobromine, aminophylline), dipyridamole, and potassium salts (e.g. potassium chloride, potassium gluconate).
Patent GB-595173-A (GB)
Title: Voltage transformer
IPC: H01F17/06
Filed: 1944-02-03
Abstract: 595,173. Transformers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 3, 1944, No. 31708/45. Convention date, Feb. 3, 1943. Divided out of 594,763. [Class 38 (ii)] A high-voltage step-up transformer suitable for passing high-frequency pulses to magnetrons and X-ray tubes comprises a primary winding formed of a number of tubular conductors 100, 101, 102 connected in parallel, and a secondary winding in the form of a conductor 104 passing continuously through the tubular conductors and insulated from them by sheaths 105 of rubber, ceramic material, or plastics. Iron cores 107, spaced apart to provide ventilation, and formed of flat wound strip or stacked washers surround the windings. The arrangement in Fig. 1 forms a 3 to 1 voltage transformer and a modification is described in which a further two section transformer is connected in a cascade with the three section transformer to give an overall 12 to 1 transformation ratio, Fig. 2 (not shown).
Patent GB-266085-A (GB)
Title: Improvements in or relating to guards for razors
IPC: B26B21/02
Filed: 1925-12-16
Abstract: 266,085. Medley, A., (Youle, E.). Dec. 16, 1925. Razors, safety. - The guard of a safety razor has a roller 11 on the side remote from the teeth 8 or equivalents of the guard, the roller being parallel with the cutting edge and contacting with the surface being shaved. As shown applied to an ordinary razor the guard comprises a channelform clip member 4 embracing the back of the blade, and carrying a comb secured by screws 9 and adjustable with respect to the cutting edge to vary the closeness of the shave. The comb has projections 10 or small set screws to space the comb away from the blade. The roller 11, preferably made from flat metal twisted to a double flute form, is journaled in lugs on the member 4. As applied to a double-edged razor, the roller is centrally placed between the cutting edges.