baber/WOPTO huggingface dataset:
Patent GB-679672-A (GB)
Title: Improvements in and relating to phase shifting networks
IPC: H03C3/18
Filed: 1950-03-14
Abstract: 679,672. Phase displacement. BRITISH THOMSON-HOUSTON CO., Ltd. March 14, 1950 [March 29, 1949], No. 6391/50. Class 38 (ii). An impedance phase-shifting network 4 comprises a fixed reactive element 6 and a variable reactive element 8 connected in series to form a branch circuit of the network, input terminals 18, 19 provided at the ends of the branch circuit, an intermediate junction between the fixed and variable reactive elements constituting one output terminal 21, circuit connections for impressing on the input terminals voltage components having a predetermined phase displacement therebetween which constitutes the voltage input angle of the network, a second output terminal 22 provided at a point in the network dependent on the voltage input angle and an output circuit 24 connected to the output terminals having a substantially constant value of impedance and a power factor angle equal to one half of the input angle and of opposite sign to the reactive characteristic of the network. In the embodiment according to Fig. 1 the phase-shifting network comprises three branch circuits and is connected to a normal three-phase supply, the voltage input angle thus being 120 degrees. The reactive elements forming the network are inductive, the nature of the load impedance (Z<SP>1</SP>) must therefore be capacitative and have a power factor angle of 120/2 degrees, i.e. 60 degrees. The ohmic value of the fixed reactors in this embodiment must therefore be equal to 2Z<SP>1</SP> sin 60 degrees, i.e. #3Z<SP>1</SP>. Under such conditions the maximum possible theoretical phase shift is 2 x 120 degrees, i.e. 240 degrees, the phase shift being varied by alteration of the direct saturating current in the windings 14 of the variable reactors. The reactive elements forming the network may alternatively be capacitative in which case the reactive nature of the load must be inductive. Vector diagrams are given in support of the theory. Specification 666,436, [Group XL (c)], is referred to.
Patent GB-115464-A (GB)
Title: Improvements in or relating to Wheels for Vehicles.
Inventor: GOODWIN ARNOLD
IPC: B60B1/12
Filed: 1917-05-04
Abstract: 115,464. Goodwin, A., Goodwin, A., and Clutterbuck, J. M. May 4, 1917. Di s k wheels; hubs.-A wheel for barrows or other vehicles comprises a two-part hub with integral axlearms e, the flanges c, d being recessed to receive the spokes h and connected by bolts i. The reduced outer ends of the spokes are riveted to the rim a which is formed of a metal strip jointed by a plate b.
Patent GB-267160-A (GB)
Title: Improvements in or relating to hoops and apparatus for encircling packages therewith
IPC: B65D63/04
Filed: 1927-03-08
Abstract: 267,160. Mandelberg, A. March 8, 1926, [Convention date]. Wire strainers.-The Specification as open to inspection under Sect. 91 (3) (a) describes a straining device for bale ties of hoop material. One end n<1> of the tie is clamped against a baseplate 15 by a lever 16 and the other end n is led over the plate 15 to a slot 19 in a shaft actuated by a pawl and ratchet. In use, the band is tightened and a lever 25 is depressed to operate a sealing die 18 and to bring knives 14, 28 into engagement to sever the surplus end n<1>. This subject-matter does not appear in the Specification as accepted.
Patent GB-621568-A (GB)
Title: Improvements in or relating to electrical apparatus or machines
IPC: H02K1/18
Filed: 1946-03-01
Abstract: 621,568. Cores for dynamo-electric machines. TILLING STEVENS, Ltd., NORBURN, W. H. J., and FREEMAN, F. March 1, 1946, No. 6434. [Class 35] A stator core 12 is secured within its casing 10 by means of wedges 26 inserted between the casing and a number of bars 22 fixed, e.g. by welding, to the outer surface of the core substantially parallel to its axis. The casing may be cast or may comprise a pair or more rings as shown, and after alignment by means of the wedges, the bars 22 can be welded to the casing.
Patent GB-1484396-A (GB)
Title: Apparatus for detecting leakage from container and method therefore
IPC: G01M3/18
Filed: 1975-02-14
Abstract: 1484396 Detecting leakage TOYO ALUMINIUM KK 14 Feb 1975 [22 Feb 1974 28 Dec 1974 (2)] 6470/75 Heading G1N To detect leakage from a sealed container 20 containing water, the container is disposed in a chamber 10 which is evacuated by a pump 60 and tank 50 and the ensuing rise in moisture content of the chamber is detected by one or more humidity sensors 31 preferably arranged in a bridge circuit from which the output feeds a threshold detector or comparator 90. The container has a heat-sealed foil flange which may be disposed so that four measuring chambers, each with a humidity sensor, are disposed adjacent respective parts of the flange whereby the sensitivity is enhanced by taking the differences of the humidity-representing signals selected in pairs. The humidity sensor may have a hygroscopic film of lithium chloride and polyvinyl alcohol formed between two electrodes or it may be a capacitive device sensing the moisture adsorption in a porous aluminium oxide dielectric film. In an alternative embodiment, Fig. 6 (not shown), where the container is flexible, the pressure inside the container is increased by squeezing it through air or water pressure in chamber (15), distending membrane (16) alternatively the air in chamber (15) may be heated or pressure may be applied by use of a mechanical lever instead of the membrane.
Patent GB-1442540-A (GB)
Title: Monoazo dyestuffs derived from 4-amino-2-nitro-diphenylamines
IPC: C09B43/11
Filed: 1974-02-13
Abstract: Novel azo dyes are used which can be applied to the substrate from an aqueous medium and produce good fastness properties. In the form of free acid, the azo dyes have the formula (I). In this formula,   R1 is a hydroxyl group in the o or p position relative to the azo group, and the radicals R2, R3, R4 and R5 are hydrogen, alkyl, aryl, halogen or alkoxy, and   Y is hydrogen, nitro or a substituted or unsubstituted sulphonamide group.   <IMAGE>
Patent GB-1182281-A (GB)
Title: Improvements in or relating to Processes for Electric Arc Welding.
IPC: B23K9/035
Filed: 1967-02-13
Abstract: 1,182,281. Welding by fusion. LA SOUDURE ELECTRIQUE AUTOGENE, PROCEDES ARCOS. 13 Feb., 1967 [11 Feb., 1966; 8 Sept., 1966; 16 Dec., 1966], No. 6706/67. Heading B3R. [Also in Division C7] In consumable electrode arc welding spaced metal plates from one side in one or two passes, the space is backed with a refractory backing in the form of a flexible fluxing member or powder and the space is filled with a preponderantly metal powder, the arc being struck between the consumable electrode and the powder in the space. Submerged arc, gas-shielded arc or manual electrode arc welding may be used. The electrode may be a bare wire or flux-cored and may have a rectangular cross-section to enable it to enter the space. The joint may be parallelsided or slightly bevelled. A T-joint or plates of different thickness may be so welded. The backing may be granular flux 9, Fig. 2, in a trough 6 of V, channel, semi-circular or semielliptical section. Straps 13 welded or magnetically attached to the plates 1, 2 support the trough 6 by the interposition of wedges 7, springs, rubber strips or an inflatable hose. Alternatively the flux is supported by a conveyer belt. The trough may be in sections to facilitate inspection of the rear of the weld. Resilient fibrous cushions 23, 23<SP>1</SP>, Fig. 7, may be located in the trough 6 to press the flux against the plates and to prevent leakage of flux. The fibres are of a ceramic consisting principally of SiO 2  and Al 2 O 3 . The backing may be a fibrous strip similar to a cushion 23 and held in place by an adhesive strip or supported on granular flux in a trough which may be of water-cooled copper and supported on springs or on an inflatable hose, protected by a layer of asbestos. In a further modification, the backing is a tube 21, Fig. 6, of SiO 2 /Al 2 O 3  fibrous material filled with granular flux 22 and held in position by an adhesive strip. The backing flux has a melting- point of 1300-1850 C. and consists of a mixture of oxides and fluorides. Examples of fluxes suitable for use as backings or also for use as a submerged arc flux are specified. In the latter case the flux contains deoxidizers. The metal powder may consist of: 10% max. FeMn. 5% max. SiMn, FeSi, FeCr, Ni, Cu. 3% max. FeTi, Al, Mg. 2% max. FeMo, FeV. 5% max. calcite, magnesite, dolomite, fluorspar, cryolite. 84-93% Fe. Tandem arc welding may be employed.
Patent GB-212946-A (GB)
Title: Improvements relating to boiler feed-water supply plants to secure protection from gases
IPC: A24F13/26
Filed: 1924-03-17
Abstract: 212,946. Szikla, G. March 16, 1923, [Convention date]. Corrosion, preventing. - To prevent the feed-water in the make-up or balancing tank of a feed-supply plant from absorbing gases, the water is covered by steam which is generated from the water and which is allowed to flow freely to a condenser open to the atmosphere. The water in a tank 1, Fig. 1, is heated by the direct contact of exhaust steam from the turbine 7 driving the feed-pump 6. A steam pipe 2 leading from the tank is connected to the bottom of a surface condenser 3, which is open to the atmosphere through a U-tube 4. The feedwater is delivered by a pump 6 through the tubes of the condenser. In a modification, the condensate is returned from the condenser 3, Fig. 2, to the tank 1 through a purifying chamber 14 containing, say, iron filings. Water from the main condenser entering the tank through a pipe 11 is led into a gas separating chamber 15 in the tank. A baffle 20 in, the chamber effects the separation of gas bubbles from the incoming water. The chamber opens into the water space in the tank through an opening 17 in the partition 16 forming the top of the chamber, and is in communication at its top with the steam space of the tank or with the atmosphere.
Patent GB-634114-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/52
Filed: 1947-03-12
Abstract: 634,114. Safety razors. BEVIS, J. E. March 12, 1947, No. 6846. [Class 30] The handle of a safety razor of the type shown comprises a sleeve 1 movable in either direction against the action of a spring 2 or 3 and adapted to push a ring 4 towards the head of the razor when, as the blade becomes worn, extra thrusting pressure is exerted on the razor, and, during shaving, pushes a ring 5 in the opposite direction to an extent depending on the resistance encountered. Wear of the blade and strength of the beard are indicated by markings 6 and 7 respectively.
Patent GB-201866-A (GB)
Title: Improvements in and relating to dyeing machines
IPC: D06B23/00
Filed: 1923-03-09
Abstract: 201,866. Herz, R. March 9, 1923. Agitating materials and liquids together.-The machine for moderating and dyeing hats and shapes described in Specification 16721/12, in which the goods are moved through the liquor in a trough A by means of paddles v carried by a rocking shaft a, the paddles being rotated at the ends of their travel as by engagement with worm gearing o carried by continuously-rotating shafts n, is modified in such a manner that at suitable intervals the main driving-mechanism is interrupted, the paddles for this period remaining stationary so as to permit the goods more evenly to absorb the liquor. For example, in the mechanism for driving the shaft a there is interposed a countershaft k, at which point the drive is transmitted through the clutch p, q; the arm u for operating the clutch carries at its end a short arm 12 capable of being fixed in either of two positions-in one position it engages a continuously driven cam y whose raised position serves to open the clutch and so to stop the machine for a determined position, while in the other position of the arm, the latter is clear of the cam and the machine runs continously; in order that the period of dwell may be adjusted, the cam comprises parts y, y<1> which are relatively adjustable so that the effective length of its raised portion may be varied.
Patent GB-286719-A (GB)
Title: Improvements relating to electro-magnetic sound recorders and reproducers
IPC: H04R11/08
Filed: 1928-03-05
Abstract: 286,719. British Thomson-Houston Co., Ltd., (Assignees of Robinson, L. T.). March 10, 1927, [Convention date]. Magnetic instrurnents.-An electromagnetic device for recording sound or for reproducing sound from a record comprises a casing formed from castings 3, end-plates 4, and top and bottom plates 5, 6, the casing being filled with a damping liquid 7, such as oil, in which a laminated armature 12 is adapted to vibrate between polepieces 9 set into the castings 3 and surrounding the coils 10. The pole-pieces are secured to the ends of a horseshoe magnet 8 which spans the casing. A rod 16 secured to the lower end of the armature and carrying the stylus 17, extends through a flexible diaphragm 18, Fig. 2, or 20, Fig 3, secured at its outer end to the plate, 6. The armature, which is supported by a ligament 13 secured to tensioning screws 14, carries at its upper end a vane 23 which is enclosed to a greater or lesser extent by an adjustable hollow member 24. the screw stud 25 on which extends through the top plate 5. Screw plugs 21 are provided in the top plate to allow the casing to be filled and emptied.
Patent GB-770054-A (GB)
Title: Improvements in or relating to electron discharge tube arrangements
Inventor: PERKINS DENIS GORDON
IPC: H01J29/70
Filed: 1954-03-10
Abstract: 770,054. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 10, 1955 [March 10, 1954], No. 6922/54. Class 39(1). A pair of coils 2, 21, 3, 31, 4, 4<1>, 5, 5<1> is provided at each corner of the scanned area 1 to adjust the geometry. Further coils may be provided for other parts of the scanned area. The coils may be wound on a magnetic yoke, or flat coils may be carried by a channelled support 12, Fig. 6. In a receiver tube, Fig. 6, the coils are positioned at the screen. In a C.P.S. camera tube, they are positioned immediately following the deflecting coils.
Patent GB-453749-A (GB)
Title: Flickering light for signalling or the like
IPC: G08B5/38
Filed: 1936-03-07
Abstract: 453,749. Signalling by visible signals. SOC. DE SIGNALISATION SCINTILLANTE, 3, Square Moncey, Paris.-(Assignees of MiquÚe, M.) March 7, 1936, No. 6935. Convention date, March 9, 1935. [Class 118 (ii)] [See also Group XVIII] For producing a flickering light effect a shutter is made to reciprocate by electric make- and-break action, between a continuously illuminated lamp and a viewing aperture. The shutter 3 is reciprocated by the magnet 4 between the lamp 1 and the aperture. In the normal position of the shutter the lamp is visible. When the magnet is energized the shutter rotates to obscure the opening and also to open the magnet circuit. The shutter continues to move forward until it reaches a mechanical stop and is then returned by spring 8. The magnet circuit is recompleted as the shutter restores and the cycle is repeated. The shutter may be counterweighted. The flickering effect may be used as a stop light, the lamp being provided with an additional window for use as the normal rear light. The light may also be used for advertising purposes.
Patent GB-487829-A (GB)
Title: Improvements in and relating to fusible elements for protecting electric circuits
IPC: H01H85/08
Filed: 1938-03-07
Abstract: 487,829. Fusible cut-outs. BRITISH THOMSON-HOUSTON CO., Ltd. March 7, 1938, No. 7097. Convention date, March 6. 1937. [Class 38 (i)] A fusible conductor for an electric cut-out comprises one or more elements of a metal having a high melting point coated with a metal having a low melting point, the arrangement being such that the metal having the low melting point is distributed throughout the whole cross-section of the conductor. Fig. 1 shows a cross-section of a conductor consisting of thin wires, coated and twisted together. In Fig. 2, thin walled tubes are coated inside and outside and are slipped over each other. Fig. 3 shows thin plates coated and stacked to form a conductor. The stack of plates may be rolled or pressed to form a circular cross-section. Fig. 4 shows a conductor formed by coiling a coated strip of sheet metal.
Patent GB-199092-A (GB)
Title: A process for the preparation of new derivatives of organic arsenic compounds
IPC: C07F9/74
Filed: 1922-03-10
Abstract: Aromatic aldehydo-arsinic acids and mixed aliphatic-aromatic keto-arsinic acids, or the corresponding arsenoxides or arseno-compounds described in Specification 199,091, are condensed with hydrazine or derivatives thereof to yield hydrazones: the reaction may take place in acid, neutral, or alkaline solution.  The parent bodies are of the type R1-CO-R2 in which R1 = hydrogen or alkyl or substituted alkyl, R2=a simple, or polynuclear, or condensed nuclear, or heterocyclic, aromatic radicle containing an arsenic substituent with or without other substituents; arsinic acid derivatives of benzaldehyde, acetophenone, propenylphenylketone, methylbenzylketone, benzalacetone and methylbenzyldiketone are referred to.  As hydrazine derivatives are mentioned methylhydrazine, diethylhydrazine, phenylhydrazine, phenylmethylhydrazine, amidoguanidine, diamidoguanidine, aminobiuret, semicarbazide, malonylhydrazide, oxalylhydrazide, and carbohydrazide NH2-NH-CO-NH-NH2.  The products have trypanocidal and spirillocidal properties.  In examples the hydrazones from the following pairs of compounds are described:-acetophenone-p-arsinic acid and hydrazine hydrate, phenylhydrazine, aminobiuret, amido-guanidine, carbohydrazide, malonyl hydrazide, or oxalylhydrazide: 6-nitro-1-hydroxyacetophenone- 4-arsinic acid and semicarbazide; benzalacetone-p-arsinic acid and semicarbazide: benzaldehyde p-arsinic acid and as-diethylhydrazine or asmethylphenylhydrazine; 3 : 31-dihydroxy-arsenobenzene-4 : 41-di-methylketone and semicarbazide.  Aldehydo-or keto-arsinic acids are produced by diazotizing mono- or poly-amido derivatives of aromatic aldehydes or mixed aliphatic-aromatic ketones, and treating with arsenite.
Patent GB-139631-A (GB)
Title: Improvements in or connected with ball taps and the like
IPC: F16K31/26
Filed: 1919-03-22
Abstract: 139,631. Stewart, J. T. March 22, 1919. Ball and float valves.-An adjustable two-part ball-cock lever 1, 2 comprises a jaw 5 open at both ends and formed by two jaw-plates depending from the inner part 2 of the lever. The outer part 1 of the lever can be hinged to the inner part in one of several positions by reason of the provision of two or more. alternative hinge-pin holes 4. The parts 1, 2 are adjusted angularly by a screw 6.
Patent GB-1384352-A (GB)
Title: Surface treatment of plastics
IPC: G01F23/14
Filed: 1973-02-14
Abstract: 1384352 Surface treatment of films TORAY INDUSTRIES Inc 14 Feb 1973 [16 Feb 1972] 7152/73 Heading B5B A method for surface treatment of a plastics material comprises passing a surface of a plastics material, especially a film 5 through a flame 7 having an electric potential different from that of the surface. The flame may be charged by an electrode connected to a source of direct current having a positive potential, or a negative potential, or of alternating current or a current having in alternation a high and low potential of the same polarity, e.g. alternating current superposed on direct current. Suitably the potential difference between the surface and the flame is 100 v to 20 kv, especially less than 4 kv. As shown film 5 which may be biaxially oriented, uniaxially oriented or non-oriented is passed through the flame 7 by means of an earthed chill roller 6 which may be water cooled. In Fig. 1 the burner 3 functions as electrode; in Fig. 2 the generator 1 is connected both to the burner 3 and to a separate electrode 4; in Fig. 3 (not reproduced) the generator is connected only to an electrode 4. Examples describe the treatment of polypropylene film using a propane: oxygen flame. Treatment enhances the bonding properties of the surface so that it may be joined more easily to other materials.
Patent GB-453209-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B5/24
Filed: 1935-03-07
Abstract: Vat dyes are prepared by heating a di-(anthraquinonylamino) - 1 . 4 : 5 . 8 - naphthoylene-di-(arylimidazole), the aryl groups of which are of the benzene or naphthalene series, with an aluminium chloride at about 140--250 DEG  C.  The starting materials may be prepared according to Specification 344,779 either by condensing 1 . 4 : 5 . 8 - naphthoylene - di -(halogenarylimidazoles) with aminoanthraquinones or 1 . 4 : 5 . 8 - naphthoylene - di - (aminoarylimidazoles with halogenanthraquinones.  In examples: (1) the condensation product of the dibromo derivative of the dye from 1 . 4 : 5 . 8 - naphthalene tetracarboxylic acid and 1.2-diaminonaphthalene with 1-aminoanthraquinone is heated in a sodium-aluminium chloride melt at 200--250 DEG  C. (dyes reddish-grey shades): the dihalogenated derivative of 1 . 4 . 5 . 8 - naphthoylene-dibenzimidazole is condensed with a  - aminoanthraquinone, 1 - amino - 2 - methylanthraquinone and 1 - amino - 4 - benzoylaminoanthraquinone and the respective products heated with a sodium-aluminium chloride melt at temperatures of about 140--200 DEG  C. (black-brown and grey shades).  Specification 369,604 also is referred to.  The Specification as open to inspection under Sect. 91 relates to the treatment of an arylamino-substituted 1 . 4 : 5 . 8 - naphthoylenedi-(arylimidazole) at about 140--250 DEG  C. with an acid condensing agent but this subject-matter does not appear in the Specification as accepted.
Patent GB-428253-A (GB)
Title: Illuminated advertising signs
IPC: F22D5/00
Filed: 1934-03-07
Abstract: 428,253. Illuminated signs. KRESLAWSKY, H., (trading as ERNST & CO. NACHFG., C.), 39, Innsbrucker Strasse, Sch÷neberg, Berlin. March 7, 1934, No. 7200. Convention date, Jan. 26. [Class 3 (ii)] A sign comprises a paraboloidal reflector provided with a front panel at right angles to its axis and bearing transparent or translucent embossed characters illuminated by a lamp at the focus of the reflector, the surface of the panel surrounding the characters being opaque or dark coloured. In the arrangement shown in Fig. 3, the panel 7, which may be convex, is formed with characters 13 and secured within the bead 6 of the reflector by a wire ring 8. Two or more reflectors may be arranged together in a casing. In a modification, Fig. 11, the characters comprise embossings with transparent walls 19 and non-transparent walls 18, a reflecting surface 21 being applied to the rear surface of the panel 22. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the reflector consists of a parabolic trough - shaped casing. This subject - matter does not appear in the Specification as accepted.