baber/WOPTO huggingface dataset:
Patent GB-1037205-A (GB)
Title: Digital data storage devices
IPC: G11C7/00
Filed: 1965-02-17
Abstract: 1,037,205. Circuits employing bi-stable magnetic elements. NATIONAL CASH REGISTER CO. Feb. 17, 1965 [Feb. 25, 1964], No. 6862/65. Heading H3B. In a data storage device of the type in which a rod-like substrate 13 (Figs. 1 and 2, not shown), having a magnetic thin film 14 deposited on it, has a plurality of sense windings 10 each coupled to a different portion of the film to define a respective magnetizable element, and in which data is read out by passing current through a word winding 16 coupled to all the elements, the elements are associated in pairs each pair being used to store a single bit, and the sense windings of a pair of elements are coupled to a sense amplifier 25 such that sense signals induced in them oppose each other. In one mode of operation (Mode 1), a " 1 " is stored by partially switching one element of a pair to an unsaturated state P3 (Fig. 3, not shown) and leaving the other in a saturated state P0, while a " 0 " is stored by leaving the first element at P0 and driving the second to P3. In a second mode of operation (Mode 2) one element is always maintained at P0, while the other is driven to P3 or left at P0 depending on whether a " 1 " or a " 0 " is to be stored. Partial switching of an element is achieved by coincident currents in the sense and word winding coupled to the element. For read out current is passed through a word winding to drive all elements to P0. The sense windings of all the odd rows of each plane of a storage matrix are connected in series, as are the sense windings of the even rows (Figs. 4 and 5, not shown). In the Mode 1 arrangement, the sense windings of the odd rows of odd-numbered planes are associated with elements which are to be partially switched when a " 1 " is stored and even rows of these planes are associated with those elements to be partially switched when a " 0 " is stored. The arrangement is reversed in the even numbered planes. The odd and even rows of an odd plane are connected to opposite ends off a first transformer-winding 52 (Fig. 6, not shown), and the other ends of the odd and even rows are connected through respective diodes 41, 42 to a driver 40. The rows of the associated even plane are similarly connected to a transformer winding 51 and a driver 60 through diodes 61, 62. The transformer windings are centre tapped to earth through impedances equivalent to half the characteristic impedance, Z 0 , of the sense lines, and the other ends of the sense lines of each plane are interconnected by respective impedances equivalent to 2Z 0 . The transformer windings are coupled in opposite senses to a transformer winding 53 connected to the sense amplifier. In the Mode 2 arrangement the windings are connected similarly but driver 60 and diodes 61, 62 are omitted. In this case the polarity of the output is dependent upon whether the selected element is in an odd or an even row.
Patent GB-231799-A (GB)
Title: Improvements in and relating to reaction turbines driven by steam
IPC: F01D1/02
Filed: 1923-12-05
Abstract: 231,799. Haddan, A. J. H., (Karl, H.). Dec. 5, 1923. Radial-flow (unbladed) type; heating parts; working-fluid supply.-Steam flows from a hollow rotor shaft 11<a>, Fig. 3, through hollow rotor arms 13b terminating in nozzles 29a which coact with a grooved stator, the arms 13b, according to the invention, being heated by electrical resistances 151a. The hollow arms may take the form of a series of spherical chambers 15a, 16a, Fig. 1, which are electrically heated, exhaust taking place through stator pipes 35a, 36a, 36b. Before admission to the rotor shaft the steam mav be superheated electrically in a chamber surrounding the shaft. Specification 231,560 is referred to.
Patent GB-409488-A (GB)
Title: Improved production of ultra-violet and luminous radiations by electric discharge apparatus
IPC: H01J65/00
Filed: 1933-03-07
Abstract: 409,488. Discharge lamps. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES ETABLISSEMENTS CLAUDE, PAZ, ET SILVA, (formerly SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES, ANCIENS ETABLISSEMENTS G. CLAUDE), 8, Rue Cognacq Jay, Paris. March 7, 1933, No. 6935. Convention date, Jan. 9. Addition to 404,271. [Class 39 (i).] A lamp according to the parent Specification is disposed in a magnetic field produced by a winding having a magnetic core and energized from a source of current of high frequency not exceeding the maximum produced industrially by an alternator, for example 30,000 cycles a second. As shown the winding 3 and core 5 are arranged inside a cylindrical sleeve 2 extending into a spherical envelope 1. The core may be thin radial strips or wires, or powdered metal agglomerated by insulating material. The source may be an alternator or a triode. In another lamp the winding is mounted around the envelope. The filling is xenon or krypton or a mixture of these gases at a pressure of a few tenths of a millimeter.
Patent GB-381463-A (GB)
Title: Improvements in domestic washing boilers
IPC: D06F1/08
Filed: 1932-03-08
Abstract: 381,463. Washing-boilers. AKTIE. BOLAGET LAVATOR, 7, Nybrogatan, Stockholm. March 8, 1932, No. 6956. Convention date, Dec. 31, 1931. [Class 64 (i).] In a domestic washing-boiler wherein the washing liquid is driven by heat from a lower chamber 7 to the top part of an upper chamber 2 containing the wash through one or more communicating channels 21 between the chambers, and the lid 30 consists of a liquid-containing vessel for cooling the washing liquid, and wherein a communication pipe 35 serving as a steam outlet is arranged between the upper chamber and the vessel 30, the pipe 35 is loosely arranged as a valve body in the bottom of the cooler 30 to allow the water therein to run down through a valve 37 to rinse the clothes. The pipe 35 may have a cap at the top forcing the steam under the water, and the cap is perforated to prevent siphon action. The pipe may be arranged in a guide 43 on the cooler wall and may be supported on a bracket 44 thereon when raised ; lather traps 41, 41a are provided. The cooling vessel is detachable and has feet 38 of such height that it may be placed on a support without opening the valve. The water passes from the clothes vessel 2 through a float valve 11 to the lower chamber 7, and when heated passes up a valved tube 21 to be distributed by a cap 23 and perforated plate 10 over the clothes. Water may be finally drained off by a hinged pipe 29.
Patent GB-422746-A (GB)
Title: Improvements in or relating to closed containers such as preserving cans
Filed: 1934-03-06
Abstract: 422,746. Opening preserve cans &c. WATSON, F., Aldwych House, Aldwych, London.-(Aktiebolaget Transitoria; 37, Birger Jarlsgatan, Stockholm) March 6, 1934, No. 7111. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 10, 1934.] [Class 66] Preserve cans &c. having a wall formed with a portion to be torn out, defined by a weakened line, are opened by means of two members acting as levers, one of the members being permanently secured to the tearing portion inside the weakened line, the other member being connected or connectible with it and adapted to bear on the part of the wall outside the line. In the construction shown in Fig. 1, the first mentioned or tearing member 32 is secured by a rivet 34 to the portion 28 inside the weakening line 26 and has a raised outer end 38 formed with lateral projections 40. The second member or key 42, which normally lies flat on the tin as shown, ends in a pair of flattened parts 46 formed with inward projections which are disposed beneath the end 38. Rupture of the wall is effected by raising the key by means of the grip 44, the end 48 bearing on the outer part of the wall causing the tearing member to rise as shown in Fig. 3 ; an upward pull on the key completes the opening. In the construction shown in Fig. 7, the key 42 comprises a loop member having the ends journalled in a sleeve 56 formed by a doubled strip riveted to the tearing portion; when turned outwardly for the opening operation the key finds a bearing on the rim 24 of the can. In a modified construction a looped key member similarly mounted has an end adapted to bear on the can wall after the manner of Figs. 1 and 3. Fig. 11 shows a form in which the two members are formed integral, a depression 70 defining a weakened zone about which bending or hinging takes place when the key 66 is raised ; in a further integral construction a rod or wire doubled to afford the tearing member is bent back on itself to form bifurcated grip portions. Fig. 17 shows a form having a tearing member 90 with a turned-up end 92 similar to that in Figs. 1 and 3, the key consisting of a U-shaped wire, the bearing part 100 of which is formed with a tongue 102 bearing on the seamed end of the can.
Patent GB-439558-A (GB)
Title: Stamps or tickets for advertising, welfare and like purposes
IPC: G09F3/02
Filed: 1934-03-06
Abstract: 439,558. Labels. BUSCHMANN, N., 9, Jansenistrasse, Tallinn, Esthonia. March 6, 1934, No. 7161. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 7, 1934]. [Classes 16 and 73] A stamp or ticket for advertising and welfare purposes which is preferably provided with suitable letterpress, is divided into three or more parts by means of lines of perforations a, b, radiating from a point o within the stamp, of which parts one, corresponding to the value which is given to the welfare project, can be torn off on the purchase of the stamp, so that the stamp is correspondingly reduced in value, while the other parts may represent predetermined or undetermined values which the purchaser receives in any desired form.
Patent GB-1248912-A (GB)
Title: Improvements in or relating to self-recuperative burners for furnaces
Inventor: HARRISON WILLIAM PETER
IPC: F23L15/04
Filed: 1968-02-24
Abstract: 1,248,912. Burners; concentric-tube heat exchangers. GAS COUNCIL. 12 May, 1969 [14 Feb., 1968], No. 7196/68. Headings F4S and F4T. A self recuperative furnace burner in which fuel and combustion air are delivered separately by way of coaxial passages 10 and 42 respectively to a nozzle 14 or respective nozzles directed into a combustion chamber 33, where the fuel and air are ignited, includes a heat exchanger through which the products of combustion pass in counterflow to the combustion air to preheat the combustion air and which comprises a products passage 40 coaxial with and in heat exchange relationship with the air passage 42 which products passage 40 extends from the combustion chamber 33 and is then doubled back upon itself at the end of the heat exchanger remote from the nozzle 14 to form a double-back part so that products of combustion are caused to flow back towards the nozzle 14 before they leave the heat exchanger, an outer air passage 45 being provided which leads to the air passage 42 and surrounds the doubled-back part of the products passage 40 and through which air passes in counterflow to the products of combustion in the doubled-back part of the products passage 40. The fuel passage comprises a pipe 10 surrounded by a coaxial cylindrical casing 23 and in the annular space between the pipe 10 and the casing 23 is defined the passages of the heat exchanger by means of coaxial tubes 25, 26, 27, 28. The two parts of the products passage 40 are defined respectively between the tube 25 and the tube 26, and between the tube 27 and the tube 28, the space between the tube 26 and the tube 27 being dead space, and the outer air passage 45 is defined between the tube 28 and the casing 23. Annular end pieces 37, 38 respectively interconnect the tubes 26 and 27, and the tubes 25 and 28 at their ends remote from the nozzle 14, and the heat exchanger is surrounded by insulating jackets 35 and 36. The outer air passage 45 is supplied by an inlet 46 which opens either tangentially, Fig. 3 (not shown) or volutely, Fig. 4 (not shown) into the casing 23 and the air passage 42 leading to the nozzle 14 is formed between the fuel pipe 10 and the tube 25 which are interconnected remote from the nozzle 14 by an end wall 23<SP>1</SP>. The mixture in the chamber 33 is ignited by an ignition electrode 20 and either a flame detector electrode (22), Fig. 5, (not shown) is included, or an inspection window is provided in a plate 11 at the rear of the fuel pipe 10 and one or more holes in the nozzle 14 through which the combustion chamber may be viewed. The products passage 40 may be provided with flow guides in the form of angularly spaced fins.
Patent GB-228737-A (GB)
Title: Improvements in variable electrical condensers
IPC: H01G5/06
Filed: 1924-03-21
Abstract: 228,737. Lowe, A. E. Bowyer-. March 21, 1924. Condensers. - In a variable condenser of the kind having a fixed, substantially semicircular, member A, and a movable, substantially semicircular, member E, adapted to rotate about an axis passing through the centres of the two semi-circles, one of the members has formed in, at or near its inner edge a gap B or an aperture of such shape that the variation of capacity by the rotation of the movable member follows some simple law other than proportionately to the angle of rotation, such as proportionately to the square of the angle of rotation, or such that the percentage variation of capacity for any given angular rotation is the same in all positions of the movable member.
Patent GB-1383307-A (GB)
Title: Polymer dispersions
IPC: C08F20/62
Filed: 1971-03-19
Abstract: 1383307 Acrylic polymer dispersions BRITISH OXYGEN CO Ltd 10 March 1972 [19 March 1971] 7300/71 Heading C3P An aqueous dispersion of a polymer containing acrylic units is prepared by forming an aqueous pre-emulsion of one or more acrylic monomers (a), together with any non-acrylic monomers to be co-polymerized therewith, a surfactant (b) and a redox system (c); adding an oxidant (d) and a reductant (e) that together form a polymerization initiation system, to part of the pre-emulsion to effect polymerization ; then adding oxidant to the remainder of the preemulsion which is added to the polymerized portion, then adding to the whole further reductant and then further oxidant, the quantity of water used to form the pre-emulsion being greater than 90% by weight of the water required to form to final polymer emulsion. Preferably the polymerization is carried out in a high speed mixer which provides high shear conditions. A chain transfer agent, e.g. tertiary dodecyl mercaptan may be included in the preemulsion or added in subsequent stages, (a) may be an alkyl acrylate, or methacrylate, acrylonitrile or acrylic acid (b) may be an alkali metal or ammonium salt of a sulphuric acid ester of a condensate of ethylene oxide and an alkyl phenol, an alkyl cresol, a fatty acid, a fatty alcohol or an amine (c) may be an aqueous solution of a ferrous salt and ethylene diamine tetraacetic acid, (d) may be a hydroperoxide, cumene peroxide, diisopropyl benzene peroxide or lauryl peroxide and (e) may be sodium sulphite, sodium hydrosulphite, sodium formaldehyde sulphoxylate or sodium thiosulphate. The emulsions of Specifications 1,259,459 and 1,327,030 may be prepared by the process of the invention.
Patent GB-125784-A (GB)
Title: Improvements in and relating to Aeroplanes.
Inventor: JONES LLOYD
IPC: B64C23/00
Filed: 1918-05-01
Abstract: 125,784. Jones, L. May 1, 1918. Aerial machines without aerostats; planes, arrangement of; propelling; stopping way.-An aerial machine is provided with radial planes 44 formed with a longitudinal screw curvature so that they are rotated around the fuselage 1 by the head-wind, and may be used, when the engine stops, to rotate front and rear propellers 14, 22. These propellers are normally driven from the engine through clutches 11, 20 and chain gearing, but may be coupled to the rotating planes 44 by clutches 49 and chain gearing 47, 46 and pinions 45 engaging perforations on the inner side of the frame 43 carrying the planes 44. The clutches 49 may be automatically controlled by electromagnetic means when the engine stops. A braking-propeller 23 may be coupled to the engine by means of a clutch 27 for stopping way. Steering.-The machine is provided with front and rear elevators 29, 31 arranged near the propellers, and with a universally-mounted plane 35 at the rear end of the tail-frame 30.
Patent GB-822760-A (GB)
Title: Process of preparing a nitro furan compound
IPC: C07D307/71
Filed: 1957-03-06
Abstract: A nitrated and acetylated furan compound is prepared by treating a furan compound with a nitrating mixture of nitric acid, acetic anhydride and a mineral acid to which is added acetic acid, and converting the intermediary nitration product thus obtained into the nitrated and acetylated furan compound by means of a base.  The nitrating mixture preferably contains 3 to 4 parts by weight of acetic anhydride for one part by weight of furan compound.  In an example, furfural is added to a nitrating mixture comprising nitric acid, acetic anhydride, acetic acid and sulphuric acid at 20 DEG  C., the reaction mixture is diluted with water and cooled, sodium hydroxide is added to separate the intermediary nitration product, the latter is diluted with water and a concentrated solution of tri-sodium phosphate is added, and after stirring at 60-65 DEG  C., 5-nitro-2-furfural-di-acetate crystallizes out.  A further example describes the same process but without separation of the intermediary nitration product. Specifications 679,202 and 765,898 are referred to.
Patent GB-513844-A (GB)
Title: Improvements in or relating to switching apparatus suitable for indicating the magnitude of a transient or abnormal condition in an electric circuit
IPC: G01R13/00
Filed: 1939-03-09
Abstract: 513,844. Electrical measurements. ATKINS, W. T. J., NALDER BROS. & THOMPSON, Ltd., and LIPMAN, C. L. March 9, 1939, No. 7448/38. [Class 37] [Also in Group XXXVII] Apparatus, adapted to indicate the magnitude of an abnormal or transient condition in an electric circuit, comprises means for detecting the condition and a device rendered effective by the detector to initiate the energization of an electrical measuring instrument for a predetermined time, the instrument having means for indicating the maximum deflection thereof. The invention is particularly applicable for indicating abnormal currents in the earth connections of the neutral points of supply networks for fault locating purposes. In one embodiment, a circuit 1 is arranged to carry a current dependent on the condition to be indicated, and, should this current reach a predetermined value, the detector, comprising the moving coil 4 of an instrument having a permanent-magnet or electro-magnetically produced field and energized over a saturated transformer 2 and rectifier-bridge 3, is deflected against the action of a spring 4d to a terminal position where it is held by a spring-catch 7 engaging behind an arm 4b on the spindle 4a thereof. In this position a contact arm 4e on the spindle 4a may close a visual or acoustic signalling circuit and a disc 4f may give a further visual indication of the deflection of the coil 4. A short-circuited coil 5 rotatable in the field of a permanent magnet 5c is mounted coaxially with the spindle 4a, and held in a zero-position by the arm 4b holding back an arm 5b on the spindle 5a of coil 5 against the action of a spring 5d which is weaker than spring 4d. When the coil 4 is deflected as above described the short-circuited coil 5 is released and rotates under the action of spring 5d to a terminal position determined by a stop. During this motion a commutator 8 on the spindle 5a completes the secondary circuit of a transformer 11 for a predetermined time to energize the moving coil 12 of the moving coil measuring instrument 13 through a rectifier-bridge 10. The meter 13 has a frictionally held maximum deflection indicator 14 which thus indicates the maximum current in the circuit 1 during the abnormal condition and cannot again be operated until resetting thereof and of the detector 4. Moving-iron instruments may be used instead of 4, 5 and 12, the rectifiers then being unnecessary. The detector circuit may be controlled by, e.g., a directional relay when it is required to indicate only transient or abnormal currents in a particular direction. In another embodiment, the detector comprises a fuse, which ruptures on occurrence of the condition to be indicated, and releases a switch and a weight, the switch closing the measuring instrument circuit for a time determined by the weight which after a predetermined time closes a switch to short-circuit the instrument.
Patent GB-305851-A (GB)
Title: Improvements in hot and cold water mixing devices for bath showers and the like
IPC: F16K11/20
Filed: 1928-03-12
Abstract: 305,851. Collins, A. L. March 12, 1928.. Freedy-flowing matter mixed in conduits.-A hot and cold water mixing device for bath showers &c. consists of a single-piece mixing chamber 9 provided with inlet openings 2, 3 and an outlet 10. and with fixed baffles 12, 13 for the two streams. In a modification, the taps are formed in one with the chamber.
Patent GB-102789-A (GB)
Title: Improvements in Wire Mattresses, Bedstead Bottoms and the like.
IPC: A47C23/155
Filed: 1916-05-29
Abstract: 102,789. Evered & Co., and Griffin, T. G. May 29, 1916. Mattresses.-In a mattress comprising linked V-shaped members connected to the frame at each end by helical springs a, the sides of the matress are also connected to the frame by springs a<1> having an inclination the main component of which is longitudinal, and arranged in sets of opposite inclination on either side of the centre of the mattress.
Patent GB-582742-A (GB)
Title: Vehicle wheels and their attachments to axles
IPC: B60B17/00
Filed: 1944-04-27
Abstract: 582,742. Vehicle wheels; axles. MORGAN, C. O. B.' April 27, 1944, No. 7906. [Class 144 (i)] [Also in Group XXXII] Wheels for railway and other vehicles are constructed without a tubular hub member, the axle being bolted &c. directly to the side or sides of the wheel. Fig 1 shows a railway disc wheel 3 having a solid centre 1 of reduced thickness which is bolted between the flanged ends of the axle 5 and journal 7. Alternatively, the flanged ends of the axle and journal may be recessed to house a thickened wheel centre. In the modification shown in Fig. 7, the flanged journal is replaced by a washer plate 8A. As indicated in this figure, the bolt attachment means may be supplemented by welds 12. Fig. 14 shows a road wheel comprising a solid wood hub adapted for attachment to the flanged axle journal 7, as in Fig. 7.