baber/WOPTO huggingface dataset:
Patent GB-1213492-A (GB)
Title: Penicillins
IPC: C07D499/00
Filed: 1968-03-08
Abstract: 1,213,492. Penicillins. ANKERFARM S.p.A. 8 March, 1968 [8 March, 1967], No. 11551/68. Heading C2A. Semi-synthetic penicillins are prepared by subjecting a penicillin to the action of a penicillin acylase in an alkaline medium whereby the penicillin is enzymatically hydrolysed to 6-APA, adjusting the pH of the medium to an acid pH and reacting the 6-APA formed with an appropriate amide or ester of a carboxylic acid in the resulting acidic medium and in the presence of said penicillin acylase to produce the desired semi-synthetic penicillin (other than the starting penicillin), said carboxylic amide being unsubstituted at the nitrogen atom of the amide group. The alkaline medium has a pH of 7À5 to 8À0 and the acid medium a pH of 3 to 6À9. The hydrolysis of benzylpenicillin or phenoxymethylpenicillin is preferably by means of a penicillin acylase of E. Coli Ankerfarm Sp. 24/14 (C.B.S. 12.8.67) which is resistant to high concentrations of phenylacetic acid and phenoxyacetic acid. The amide or ester may have the formula wherein R 1  may be H, alkyl, aryl, aralkyl, heterocyclic which may be substituted; R 2  is NH 2  or OR 3  wherein R 3  is alkyl, aryl, aralkyl or heterocyclic which may be substituted. R 1  may also be wherein R 4  is H, alkyl, aryl, aralkyl or heterocyclic which may be substituted in at least one position and R 5  is NH 2  which may be substituted.
Patent GB-702198-A (GB)
Title: Improvements in or relating to circuits embodying cathode-ray tubes
IPC: H01J31/06
Filed: 1949-05-02
Abstract: 702,198. Cathode-ray tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 2, 1949, No. 11650/49. Addition to 684,552, [Group XL(c)], Class 39(1) [Also in Group XL(c)] In a multistable cathode-ray circuit arrangement as claimed in claim 1 of the parent Specification, the cathode tube has a supplementary collecting electrode 10 or 13 which is connected through a resistance 11, 14 to a source of positive voltage and through a series capacity 12, 15 to one member of a pair of deflecting plates 2, 3 so that when the beam moving in one direction through a series of stable positions impinges on the supplementary collecting electrode 10 or 13 it gives rise to such changes in the deflecting voltage that it first continues its movement and then flies back in the opposite direction, there being no amplifier in the feedback circuit. In the arrangement shown supplementary electrodes 10, 13 are coupled to deflecting plates 2, 3 via condensers 12, 15 respectively, and electrode 5 is connected direct to deflecting plate 2. Electrode 4 is an apertured plate or a number of separate plates coupled together. In operation by applying positive pulses to the deflecting plates 3 the beam, initially at D say, may be successively shifted to stable positions C, B, A, Fig. 3, and when a further pulse is applied the beam strikes electrode 10 and the resulting variation in feedback shifts the beam back to D immediately. Similarly by applying negative pulses to the deflecting plate 3 the beam initially at A say, may be moved successively to B, C, D, then to electrode 13 and as a result is then moved immediately back to A. These effects are explained theoretically by a displacement of the feedback current-deflection voltage curve b, Fig. 3, to a dotted line position such as b<SP>1</SP>, so that only one stable position such as D<SP>1</SP> remains. The two supplementary electrodes 10, 13 may be secondary emissive, in which case the connections between them and the deflecting plates 2, 3 are interchanged, i.e. 10 is connected to' 3 and' 13 to 2. Specification 702,263 is referred to.
Patent GB-1044373-A (GB)
Title: An electrical system for selecting and interconnecting one of a plurality of instruments to a control station
Inventor: CHANDLER KENNETH WILLIAM
IPC: H03K17/62
Filed: 1962-03-27
Abstract: 1,044,373. Transistor gating circuits. COAL INDUSTRY (PATENTS) Ltd. June 25, 1963 [March 27, 1962], No. 11664/62. Heading H3T. [Also in Division G1] A transistor gating circuit, for use in an electrical measuring system (see Division G1), consists of a transistor T5 and a diode D2. If a negative potential is applied to line 1 a signal from measuring apparatus 12 is applied to the base of the transistor, and diode D2 becomes forward biased as the transistor emitter takes up a negative potential. The measuring signal is then passed through lines S, C to control station 10. While D2 is conductive a negative potential exists on line S to back-bias the diodes associated with all other measuring heads connected to lines S, C. Line 14 is provided to remove the measuring signal from the base of transistor T5 when no bias is applied to line 1. In a modified arrangement diode D16 is connected to the collector of transistor J16, and the output is taken across resistor R36 connected between the emitter and collector.
Patent GB-436805-A (GB)
Title: Manufacture of naphthylamine derivatives
Filed: 1934-04-18
Abstract: 1-Hydroxyalkylamino-5-naphthols and (or) 1 : 5-di(hydroxyalkylamino)naphthalenes are prepared by treating 1 : 5-dihydroxynaphthalene with a primary hydroxyalkyl amine sulphite in an aqueous medium or with a primary hydroxyalkyl amine in the presence of an aqueous solution of a bisulphite.  When a 1-hydroxyalkylamino-5-naphthol is the product desired, the corresponding 1 : 5-di(hydroxyalkylamino)naphthalene may be added to the reaction mixture, to restrain its formation in the reaction.  The reaction may be effected under reflux or at 110--115 DEG  C. under pressure.  In the examples, (1) 1 : 5-dihydroxynaphthalene, ethanolamine, and aqueous sodium bisulphite are heated together and the product is diluted, made strongly alkaline, boiled and cooled, whereupon 1 : 5-di(hydroxyethylamino)-naphthalene separates; the filtrate is acidified to precipitate unchanged 1 : 5-dihydroxynaphthalene, and the filtrate from this is made feebly alkaline to precipitate 1-hydroxyethylamino-5-naphthol; ethanolamine sulphite may be used in place of ethanolamine and sodium bisulphite; (2) 1 : 5-dihydroxynaphthalene, ethanolamine, and aqueous sodium bisulphite are heated together with the addition of 1 : 5-di-(hydroxyethylamino)naphthalene, and the product is worked up as in example 1.  Specification 410,843 is referred to.
Patent GB-119027-A (GB)
IPC: F02M21/00
Abstract: 119,027. Tampier, R. Sept. 7, 1917, [Convention date]. Compression engines. -An engine having inclined cylinders 19, 20, and a double carburettor 1 is arranged as shown in Fig. 3, the two carburettor elements being provided respectively with inlets 22, 24 for air under pressure and induction pipes 21, 23 leading to the cylinders 19, 20. Two machine guns 25, 26 may be placed between the cylinders
Patent GB-758561-A (GB)
Title: Crystal violet composition
IPC: C09D11/02
Filed: 1954-04-26
Abstract: Hectograph dye compositions containing Crystal Violet are made by applying a layer of an aqueous dispersion containing about 40-80 per cent solids at least 30 per cent of which is Crystal Violet to a moving surface heated sufficiently to reduce the moisture content of the dispersion to less than about 2 per cent in a period of about 5-30 seconds, and within such period, removing the dried product from the surface as a powder having a moisture content less than about 2 per cent.  The surface may be heated to 270-360 DEG C., and may be the surface of a revolving atmospheric rotary drum drier.  The solids may comprise 35-45 parts Crystal Violet, 40-45 parts Chrysoidine, and 15-20 parts Rhoduline Blue.  The powder may be mixed with a hectograph ink vehicle, e.g. carnauba wax, beeswax, mineral oil, lanolin, "Vaseline" (Registered Trade Mark), lard oil, lecithin, or oleic acid.  Oleostearine, mutton tallow, or lard oil may be added to melted beeswax and the dye powder then added.  Examples describe the drum drying of slurries of Crystal Violet and various mixtures thereof with Chrysoidine and Rhoduline Blue.
Patent GB-820440-A (GB)
Title: Organic mercury quaternary ammonium salts and their preparation
IPC: C07F3/12
Filed: 1958-04-16
Abstract: The invention comprises organomercury quaternary ammonium salts of formula <FORM:0820440/IV (a)/1> wherein R is an aryl group, R1 is a phenyl radical substituted by at least three chlorine or bromine atoms, R2 is a b -hydroxyalkyl radical having 2 or 3 carbon atoms and each of R3 and R4 is a b -hydroxyalkyl radical having 2 or 3 carbon atoms or a C1-C4 alkyl radical.  The above compounds have bactericidal and fungicidal properties (see Group VI).  They may be prepared by reacting aryl mercuric polyhalogeno phenoxides with tertiary alkanolamines, e.g. phenyl mercuric pentachlorophenoxide, tolyl mercuric pentachlorophenoxide, phenyl mercuric tetrachlorophenoxide, phenyl mercuric trichlorophenoxide and phenyl mercuric tribromophenoxide with triethanolamine, methyldiethanolamine, ethyldiethanolamine, butyldiethanolamine, dimethylethanolamine, diethylethanolamine and dibutylethanolamine. The reaction may be carried out in a common solvent, e.g. methanol, ethanol, acetone, methyl ethyl ketone and methyl isobutyl ketone. Examples 1-6 inclusive describe the preparation of phenyl mercury triethanolammonium pentachlorophenoxide, phenyl mercury N,N - dimethylethanolammonium pentachlorophenoxide, phenyl mercury triethanolammonium 2,4,6 - bichlorophenoxide, phenyl mercury N,N-di-methylethanolammonium 2,3,4,6-tetrachlorophenoxide, phenyl mercury triethanolammonium 2,4,6 - tribromophenoxide, and phenyl mercury N-methyldiethanolammonium pentachlorophenoxide.ALSO:Bactericidal and fungicidal compositions comprise an organomercury quaternary ammonium salt of formula <FORM:0820440/VI/1> where R is an aryl group, R1 is a phenyl radical substituted by at least three chlorine or bromine atoms, R2 is a b -hydroxyalkyl radical having 2 or 3 carbon atoms and each of R3 and R4 is a b -hydroxyalkyl radical having 2 or 3 carbon atoms or a C1-C4 alkyl radical, together with a carrier or diluent.  The quaternary ammonium compound may be solubilized by an excess of the tertiary b -hydroxyalkyl amine used in its preparation.  Solid carriers include water-soluble salts such as sodium sulphate, sodium bicarbonate, borax, saccharides such as lactose, dextrin or soluble starch. Surface-active agents such as triethanolammonium oleate or polyethylene glycol alkylphenyl ether and animal, vegetable or mineral oils or carbowax may also be used.  Specific compositions are described in Examples 7-11 inclusive.
Patent GB-1244260-A (GB)
Title: Tin-coating equipment for copper wire
Inventor: DIETRICH HANS
IPC: C23C2/08
Filed: 1969-03-07
Abstract: 1,244,260. Coating with metals. CARL ZEISS JENA VEB. March 7, 1969, No.12156/69. Heading C7F. A copper wire 7, which may be coated with polyurethane, is tinned by positioning it in a jet of molten tin from a nozzle 6, whilst in a protective atmosphere. The tin in continually or intermittently recirculated by an electromagnetic pump.
Patent GB-270493-A (GB)
Title: A bin or receiver for dust and the like from vacuum cleaners
IPC: A47L9/20
Filed: 1926-05-11
Abstract: 270,493. Palmer, H., Palmer, G. K., and Weldon, A. May 11, 1926. Vacuum cleaners.-The mouth of a bin is formed with a groove, and openings B<x> are provided through which may be passed the laterallyprojecting arms of the usual rigid ring of a vacuum cleaner dust bag. Wedging surfaces may be provided to force the dust bag ring to make a tight joint when turned. The operator may stand on a flange A<x> to steady the bin while shaking the bag.
Patent GB-1346844-A (GB)
Title: Device for retaining a spare wheel especially in the boot of an automotive vehicle
IPC: B62D43/08
Filed: 1971-04-29
Abstract: 1346844 Spare wheel carriers CHRYSLER FRANCE 29 April 1971 [15 June 1970] 12198/71 Heading B7J A device for retaining a vehicle spare wheel consists of a lever L2, formed with two curvilinear clamping-cam portions S1 and S2, two hooks C1 and C2 and a handle M forming an over dead-centre lever; a tension-bar member T2, in the form of two T pieces, being held at one end in a fitting F2 attachable to a substantially vertical vehicle surface (i.e. the boot interior wall) the other end passing through a spare wheel disc R and a disc D, closing the wheel discs central opening, to engage in the lever hooks. The lever is fitted to the member in the dot-dash position of Fig. 5 and rotated in direction of the arrow X thus causing the clamping-cam portions to engage the disc and push the wheel, against the resilient force of the inflated tyre on the vehicle surface, the bearing point P passing from one side of the medial plane of the tension member to the other side (top to bottom in Fig. 5) in a toggle-like action. If the tyre deflates the force on the lever is removed and the lever disengages allowing the wheel to fall over giving warning of a deflated and thus loose spare wheel. In a second embodiment a planar lever (L1) passes through a slot (E) in the tension-bar member (T1), Fig. 3 (not shown).
Patent GB-973829-A (GB)
Title: Improvements in or relating to silicate grouts
Inventor: WILLIAMS DAVID ROWLAND
IPC: C09K17/12
Filed: 1962-03-30
Abstract: A grout is formed from an aqueous solution of a soluble alkali metal silicate, an acid or acid salt or a compound forming acid by hydrolysis, and a finely divided insoluble magnesium compound which at the pH of the gel formed from the silicate grout is converted to magnesium hydroxide.  The magnesium compound may be the trisilicate, basic carbonate, or oxide.  Preferably the pH of the grout is 9.5 to 11.0
Patent GB-849978-A (GB)
Title: Improvements in rotary regenerative heat exchangers
IPC: F28D19/04
Filed: 1957-04-16
Abstract: 849,978. Thermal regenerators. SVENSKA ROTOR MASKINER A.B. April 16, 1957 [April 19, 1956], No. 12391/57. Class 64(1) Relates to thermal regenerators comprising a rotor divided by radially extending partitions 14 into compartments each containing heat transfer material, and a housing surrounding the rotor and provided opposite the rotor ends with end plates 19 having circumferentially spaced apertures 20, 21 therein through which the heat exchanging fluids e.g. heating gases and air flow to and from the rotor. According to the invention, sealing means are provided to prevent fluid flow across the end of the rotor and are supported in an axially movable manner in a channel provided on imperforate portions of the housing end plates 19. In the form shown the seal comprises a plate 22 extending circumferentially for a distance greater than that between adjacent partitions 14 of the rotor. One edge of the plate 22 is shaped to form a hook 28 (Fig. 3), which is pivotally supported in a channel 26 secured to the adjacent end plate 19 as shown, a stay rod 29 being provided and the channel 26 containing a liquid in which the hook 28 is submerged. Means biasing the sealing plates 22 into contact with the end edges of the rotor partitions 14 may comprise weights 24, springs, a bellows connected to a convenient pressure source, or magnets. A sealing plate located at the underside of the rotor may be biased upwardly towards the rotor by means of floats or by a lever one end of which carries adjustable weights.
Patent GB-494736-A (GB)
Title: Improvements in or relating to furnaces
IPC: C21D9/00
Filed: 1937-04-30
Abstract: 494,736. Cooling and preheating furnace charges. MAcDONALD, J., and G. W. B. ELECTRIC FURNACES, Ltd. April 30, 1937, No. 12418. [Class 51 (ii)] A furnace installation for the heat treatment in a protective atmosphere of materials contained in retorts or boxes comprises a pittype furnace, a cooling-pit to which a retort may be transferred after heat treatment in the furnace, and arrangements by which the protective atmosphere can be circulated between this retort and another containing a cold charge to be preheated. The installation shown comprises a furnace 1 which may be electrically heated, a preheating pit 4, three cooling pits 5, 6, 7 and a pipe system 15, 16 with a fan 14<1> and branch leads 17 .. 20 having flexible portions 21 ... 24 by which retorts in the various pits can be connected to the system. By means of valves 25 .. 28 a retort in the preheating-pit 4 can be placed in communication with a retort in any one of the cooling-pits. In a modified installation the pipe system has two sets of branch leads, one for the pit 4 and the other for any one of the pits 5, 6, 7.
Patent GB-513804-A (GB)
Title: Improvements in or relating to sleepers for rail tracks and especially for railway tracks
IPC: E01B3/10
Filed: 1938-04-26
Abstract: 513,804. Railway sleepers. BASELER, W., ZANGL H., and DIETRICH, J. April 26, 1938, No. 12432. Convention date, April 26, 1937. [Class 104 (ii)] Sleepers are made by uniting, by means of adhesive, pieces of timber, cut, for example, from old sleepers. The parts of the sleeper under the chairs 3 are broadened by connecting additional pieces 2 or 7 to the longitudinal pieces 1 or 5, 9. Combinations of hard and soft woods may be united, and dowel pins &c. may be used to assist the adhesive in binding the parts together. Compound sleepers may be made by connecting two sleepers made as shown by cross pieces 71, 72 and diagonals 70. A chair suitable for use with such sleepers is made of several pieces of cemented wood 78 formed with a channel for the rails. The channel may be lined with combinations 79, 82 of cellulose and artificial resin, with or without metal reinforcement 80, 81.
Patent GB-778376-A (GB)
Title: Improvements in or relating to light-modulating devices
IPC: H01J31/24
Filed: 1952-05-17
Abstract: 778,376. Television; light modulating. JEFFREE, J. H. May 18, 1953 [May 17, 1952; July 18, 1952], Nos. 12536/52 and 18220/57. Class 40 (3). Television picture projection apparatus includes a light-modulating device comprising a reflecting surface which is deformed by the effect of modulating electric or electromagnetic signals. In one embodiment (Fig. 1), the reflecting surface, which is in the form of a metal film 23 is positioned between a glass plate 24 (which may be the end wall of a cathode-ray tube and which may be provided, on the surface adjacent the film, with a coat of conducting material not opaque to light) and a body 21 (of poorly conducting material) the surface of which adjacent to the film bears a relief pattern, e.g. a series of parallel ridges, and the other surface of which carries a conducting mesh 22 which serves to remove electric charges received when this surface is scanned by a (modulated) cathode-ray beam. In operation the light to be modulated is directed on to the film 23 through the plate 24 and, in the absence of scanning of the body 21 by a (picture modulated) cathode-ray beam, the light reflected by the film is arranged to be intercepted by an opaque stop member. When, however, the lower surface of 21 is scanned by a cathode-ray beam modulated, e.g., by television signals, the electrostatic force set up between the film and the body 21 causes flexures of the film corresponding in form to the relief pattern of body 21 and in amplitude to the intensity of the cathode-ray beam so that the reflected light is no longer intercepted by the opaque stop member and may be directed on to a viewing screen. Such an arrangement is shown in Fig. 16, where the light modulating device, indicated generally at 40, is mounted within a cathode-ray tube 41, the light to be modulated, from source 42, being directed on to device 40 by means of reflecting opaque stop-members 46 through the spaces between which the light returned from device 40, when the film flexures cause diffraction, reached the viewing screen 47. Various modifications of the relative positions of the elements 21, 22, 23, 24 and the coat of conducting material described with reference to Fig. 1, in some of which the film 23 is itself formed with ripples the other elements being flat, are described with reference to Figs. 2 to 13 (not shown) and two further embodiments in which the modulating device may be operated directly by a light image or an X-ray image projected thereon and employing photo-emissive and photo-conductive surfaces are described with reference to Figs. 14 and 15 respectively (not shown). Specification 741,154 is referred to.
Patent GB-559953-A (GB)
Title: Improved means for softening thermo-plastic toe puffs
IPC: A43D11/14
Filed: 1942-09-07
Abstract: 559,953. Softening shoe-stiffeners. JACKSON, W. H., and CLARK, W. G. Sept. 7, 1942, No. 12257. [Class 17 (i)] A device for softening thermo-plastic toe-puffs at that stage when a toe-puff is tacked with a shoe upper to the last comprises a boiler 14 which is heated by the circulation of hot water or steam through it, and which has a recess 17 in its upper part for the reception of a quantity of water so that the water is heated by the boiler to form hot water vapour, one or more hot water or steam pipes 26 above the boiler to heat the surrounding air, a box-like structure 18 above the boiler having at least one aperture 19 for the reception of the toe portion of the work and means for so supporting the last that the toe portion overlies both the pipe or pipes and the boiler.
Patent GB-131991-A (GB)
Title: Improvements in or connected with pivoted windows
Inventor: SHAW WILLIAM HENRY
IPC: E05D7/083
Filed: 1919-01-31
Abstract: 131,991. Shaw, W. H. Jan. 31, 1919. Ventilators. - At the upper part of a window having pivoted sashes is a ventilating-aperture i protected by a board k and sheets of perforated zinc or gauze m, n.
Patent GB-833652-A (GB)
Title: Over-run brake for trailer vehicles
Inventor: ATKINSON RICHARD LESLIE
IPC: B60T7/20
Filed: 1956-04-25
Abstract: 833,652. Trailer over-run brakes. ATKINSON'S AGRICULTURAL APPLIANCES Ltd. Jan. 10, 1957 [April 25, 1956], No. 12650/56. Class 103 (1). In an over-run brake for trailer vehicles, a tow-bar 3 is hollow and extends forwardly of the trailer and a brake-operated rod 15, extending within the tow-bar, is linked to an eyepiece 11 which is mounted on verticallyspaced horizontal rollers 8, 7 and adapted for engagement by a coupling member on a tractor vehicle; resilient means 13 thrusting the actuating-rod 15 in the direction of brake application to automatically operate the brake mechanism when the tractor is braked and the eye-piece 11 is consequently relieved of pulling forces. The tow-bar 3 is also provided with a skid or other ground-engaging member 17 to prevent the tow-bar contacting the ground when not in use.
Patent GB-271090-A (GB)
Title: Improved process for sticking, cementing, impregnating or filling, and manufacture of agents therefor
IPC: C09J131/04
Filed: 1927-05-11
Abstract: 271,090. Consortium fur Elektrochemische Industrie Ges. May 11, 1926, [Convention date]. Adhesives; electric insulation proofing permeable materials; sealing-wax; adhesives.-Polymerized vinyl acetates which are soluble in alcohol and in hydrocarbons such as benzene, are used for cementing and sticking. The products, which may be obtained for example as described in German Specification 446,562, may be used in any condition of viscosity, or molten, or in solution, or as powders. They may be dissolved in organic solvents such as alcohols, ketones, esters such as vinyl acetate, acetals, hydrocarbons or halogen derivatives thereof or nitro-hydrocarbon, or mixtures thereof, and the polymerization is preferably effected in the presence of a solvent, for example as described in Specification 261,406, [Class 2 (iii), Dyes &c.]. Softening agents, adhesive or non-adhesive materials, fillers &c. may be added. Cementing or sticking may be effected with the aid of heat or pressure or both. Examples are given of the use of (1) a solution of the soluble polymerized vinyl acetate in alcohol or benzole &c. for sticking together layers of mica, paper, fibrous material &c. to form electrically insulating materials. (2) a solution of soluble polymerized vinyl acetate to be sprayed, painted &c. on paper, fabric &c. to form sticky films. (3) Powdered soluble polymerized vinyl acetate strewn on layers of materials such as paper or micanite and uniting such layers by pressure and heat. The products may also be used to form sealing-wax to be melted or used cold, and cold glues.