baber/WOPTO huggingface dataset:
Patent GB-1345464-A (GB)
Title: Electirc signal pulse conversion circuits
IPC: H03K5/135
Filed: 1972-05-31
Abstract: 1345464 Pulse synchronizing circuits, data transmission SIEMENS AG 31 May 1972 [4 June 1971] 25388/72 Headings H3T and H4P In an arrangement for converting asynchronous pulse signals at E into signals which are synchronized in duration and phase with clock signals at input T, the two signals control a bistable FF which has a first output A at which the synchronized signal are produced, and a second output which is connected to an input of an auxiliary circuit HS, the circuit HS having a second input fed with the asynchronous signal and an output C which is connected to a logic circuit 1, 2 whose output is connected to a preparation input J of bi-stable FF, such that it may be set only once during each input pulse at E. Initially output B of NAND 3 is "0", output C of NAND 4 is "1", reset input D of bi-stable FF is "1", output A is "0", and input E is "0". When E changes to "1", NAND 1 and inverter 2 supply a "1" on the J input of FF, so that, on the arrival of the leading edge of the next clock pulse at T, bi-stable FF switches to give a "1" on output A, and to change output B of NAND 3 to "1". NAND 4 thus now receives two "1" inputs, producing a "0" output which inhibits NAND 1 to cause input J of FF to revert to "0". On arrival of the trailing edge of the clock pulse, inverter 5 provides a "1" input to NAND 6 so that FF is reset to a "0" on output A. When the signal E reverts to its "0" state, the signal at B reverts to "0" and the signal at C reverts to "1".
Patent GB-1473131-A (GB)
IPC: A47J27/00
Filed: 1974-06-07
Abstract: 1473131 Resistance heating element IMANISHI KINZOKU KOGYO KK 7 June 1974 [8 June 1973] 25396/74 Heading H5H [Also in Division A4] An electrically heated food container comprises a cylindrical porcelain pan 3, a heating element 11 helically wound around the unglazed outer pan surface, an intermediate plate 12 of heat insulating material from and to which the heating element 11 starts and returns, plate 12 being located between the unglazed outer pan surface and the heating element which is coated with a heat insulating silicon compound varnish, and a casing 1 housing the pan 3. The heating element 11 comprises two lengths of wire of nickel-chromium alloy and casing 1 has three legs 14 and opposed exterior handles 1, 5, all of plastics.
Patent GB-601631-A (GB)
Title: Method and apparatus for closing the end of a metallic tube
IPC: B21D41/04
Filed: 1945-10-01
Abstract: 601,631. Spinning. BIGINELLI, O. F. A. Oct. 1, 1945, No. 25469. Convention date, Sept. 19, 1940. [Class 83 (iv)] A method of closing the end of a metal tube without inner support comprises pressing the end of the tube into a hollow rotating matrix, the working surface of which is a surface of revolution about the axis of the tube and the form of which surface corresponds to that to be imparted to the end of the tube, so that the edge of the tube comes into line contact with the matrix and has its malleability increased by frictional heating. As the tube 9 is moved towards the rotating former 6, its end is first pushed through a fixed member 8 which imparts slight initial shaping to the tube end and by its frictional grip on the tube, lessens the torsional stresses between the end being closed and the point at which the tube is gripped in the machine by the members 2, 3, 4. Figs. 6 and 8 show other different shapes of rotating former designed to shape the tube end as shown respectively in Figs. 7 and 9. The former of Fig. 1 produces a tube end as shown in Fig. 5.
Patent GB-1017694-A (GB)
Title: Plastics film
IPC: B32B27/08
Filed: 1962-07-03
Abstract: A foil, for use as a cover for a plant forcing bed, a cloche, or as a rooflight for a coach, whose translucence varies reversibly with the temperature and/or the intensity of illumination falling thereon, comprises a film composed of a compound of partly acetalized polyvinyl-alcohol plus water mixed with at least two hydrated salts having different anions and the same or different cations, said film being coated on one or both sides with a permeable plastics material. The mixture of the hydrated salts is present in such high concentration that the partial vapour pressure of the partly acetalized film is reduced to below ambient pressure thus enabling the transition point (the point at which the film becomes cloudy) to be raised into the useful temperature range (e.g. 20-30  DEG C.).  A mixture of two more of the following hydrated salts may be used: a chloride, bromide, iodide, or nitrate or lithium, calcium or magnesium, and a perchlorate of sodium or magnesium.  The permeability of the inside layer in the case of agricultural soils, i.e. the layer nearest the earth, may be of a higher permeability than the layer directly exposed to the weather, which latter layer may be polyethylene terephthalate or polymethyl methacrylate or polystyrene.  The plastics layers may be lacquers based on cellulose acetate, polyvinyl acetate, polyvinyl acetal, polyacrylic acid ester, copolymers of vinyl chloride and vinyl acetate or natural substances, such as gelatin, which have been rendered insoluble.  Instead of applying the plastics layers to the film, the film material, in solution in aqueous alcohol, may be cast, brushed, sprayed or spread on one or both sides of a plastics layer and a lacquer spread thereon.
Patent GB-1028108-A (GB)
Title: Production of bis-(trichloroacetyl)-benzenes
Inventor: KHCHEJAN KHACHIK EGOROVICH
IPC: C07C45/63
Filed: 1964-06-19
Abstract: A di-(trichloroacetyl)-benzene isomer or mixture of isomers is produced by passing chlorine gas through the corresponding diacetyl-benzene isomer or mixture of isomers, in the molten state in the presence of hexamethylene tetramine. The conversion of products to iso- and terephthalic acids by hydrolysis with alkalies is described.  Examples are furnished.
Patent GB-236091-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/30
Filed: 1924-10-27
Abstract: 236,091. Dubilier Condenser Co. (1921), Ltd., (Deventer, H. R. van.). Oct. 27, 1924. Condensers.-In a condenser in which a pile of conducting and insulating sheets are compressed between a pair of face plates 1, 2, the plates are secured together at their ends by means such as clips 6, and additional securing means, such as rivets 9, passing through the face plates, are provided at opposite sides. The clips 6 are mounted on extensions 5 of the face plate 2, and are provided with portions 12 which can be bent over the face plate 1. Specification 229,239 is referred to.
Patent GB-1108488-A (GB)
Title: A method for the manufacture of light weight concrete
IPC: C04B38/02
Filed: 1965-06-17
Abstract: Porous concrete is produced by mixing with a lime-rich binder, siliceous aggregate and water, a liquid which boils below 100 DEG  C. at 1 atm. and is insoluble or sparingly soluble in water, and vaporizing the liquid to effect expansion before the binder has hydrated.  Vaporization of the liquid may be effected by lowering the external pressure and/or raising the temperature, for example by the exothermic hydration of the binder.  The volatile liquid may be mixed directly with the binder, aggregate and water, utilizing an emulsifier, it may be emulsified first in water it may be absorbed first on to porous mineral grains such as kieselguhr, or it may be added as a solution in a water-soluble liquid which boils intermediate that of water and the volatile liquid.  Suitable as the volatile liquid are hydrocarbons, chlorinated or fluorinated hydrocarbons, and esters, e.g. n-pentane, or ligroin.  The method is particularly suitable for casting of a wet concrete mix continuously fed through a nozzle to a mould.  The moulded concrete may be vacuum treated to remove vapour and steam cured at 6-21 atm. at above 150 DEG  C.  In Examples, (1) Portland cement, quartz sand, n-pentane, water, and hydrolyzed keratin, and (2) burnt unslaked lime, basic blast-furnace slag, fly ash, ligroin, water, a sodium alkyl sulphonate, and sodium carboxymethylcellulose are used.
Patent GB-1245463-A (GB)
Title: A method of insulating buildings
Inventor: FEAKINS REGINALD ERNEST
IPC: E04B1/82
Filed: 1968-05-28
Abstract: 1,245,463. Insulating walls, floors and ceilings. R. E. FEAKINS. 3 June, 1969 [28 May, 1968], No. 25592/68. Heading E1W. [Also in Division F2] Acoustic, and/or thermal insulation comprises a flexible polythene container filled with sand or fine loam and hermetically sealed by heat sealing or rolling the end and stapling. The container may be rectangular in shape: or cylindrical. The insulation is placed between the joists of a floor and/or ceiling construction or the lateral webs of a double-wall construction and may be shaped and dimensioned to fit the space into which it is inserted.
Patent GB-618411-A (GB)
Title: Improvements in and relating to electrical signalling systems for remote indication or control
Filed: 1944-12-21
Abstract: 618,411. Electric control systems. BENDIX AVIATION CORPORATION. Dec. 21, 1944, No. 25671. Convention date, Dec. 16, 1943. [Class 40 (i)] A remote control transmitter gives A.C. signals dependent in phase sense and magnitude on the direction and extent of rotation of a shaft from a datum position. As shown in Fig. 1, the stator 16 carries two sets of windings 10 and 15, each comprising an energized primary, and a secondary which is connected in series opposition with the other secondary. Rotor 23 which moves in accordance with the precessional movements of gyro rotor 19 differentially varies the couplings of the two sets of windings so that a signal having the desired properties appears across the secondaries. In another embodiment (Fig. 3, not shown), the two sets of windings each consist of a single winding, the two being connected in series across the centre-tapped secondary of a transformer, the desired signal being taken from between the centre tap and the junction of the windings.
Patent GB-827905-A (GB)
Title: Improvements in or relating to the formation of perforated metal members
Inventor: HOLMAN HERBERT EDWARD
IPC: C03C15/00
Filed: 1957-08-15
Abstract: 827,905. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 14, 1958 [Aug. 15, 1957], No. 25728/57. Class 39(1). [Also in Group XXXVI] A method of producing a metal mesh such as for use as a grid in electron discharge devices and television tubes utilizes a matrix formed of a photo-sensitive glass whose resistance to etching is modified by heat treatment. The glass matrix is exposed to light, such as ultraviolet, through a metal pattern, e.g. of Cu, Au, Ag or Al, laid down on the glass by deposition through a master grid, or through portions of a resist formed on the glass by a photographic process, or is exposed directly through a stencil. Deposits formed on the glass, if used, are then removed and the glass is then heated so as to effect a permanent change in the exposed portions of the glass. The glass is then etched in aqueous hydrofluoric acid, the portions of the glass which have been exposed to radiation being removed at a faster rate than the unexposed portions. The surface of the glass opposite to that exposed to radiation is covered with an acid resistant material prior to etching. An electrically conducting coating such as palladium is then deposited over the surface of the glass matrix and removed from the lands between the depressions, and a metal such as copper is grown on the coating remaining in the depressions by electroplating. The shape of the depressions and hence the shape of the bars of the mesh can be controlled by varying the angle at which the light is projected on to the glass during exposure. Finally the mesh is stripped from the glass.
Patent GB-774004-A (GB)
Title: Improvements in and relating to the production of cellulose xanthate
Inventor: WILLIAMS HAROLD MALCOLM GORDON
IPC: D01F2/08
Filed: 1954-09-06
Abstract: Cellulose xanthate is made by immersing alkali cellulose in a pool of carbon disulphide, withdrawing the impregnated alkali cellulose from the pool and pressing it to remove carbon disulphide in excess of a predetermined amount, and then passing it to a xanthation chamber and, after the xanthation period, removing the cellulose xanthate from the xanthation chamber.  As shown, particles of an alkali cellulose containing 30 per cent by weight cellulose, 15 per cent sodium hydroxide and 55 per cent water, obtained by shredding sheets of wood pulp which have been steeped in aqueous sodium hydroxide are, after ageing, fed at a constant rate to an impregnation chamber 2 by means of a rotating star-wheel 3.  The particles fall upon a conveyer belt 4 and are carried thereby beneath the surface of a pool 6 of carbon disulphide, complete immersion being ensured by a baffle 9. Carbon disulphide is supplied through a pipe 10 at a rate calculated to give a carbon disulphide/cellulose ratio by weight of <PICT:0774004/IV(a)/1> 34/100 .  Nitrogen is introduced into the chamber 2 through a pipe 11.  The particles are conveyed to a xanthation chamber 15 between the nip of a pair of rollers 7, 8, the pressure between which is maintained by a spring 12 and is adjusted by a screw 13 to an extent whereby the amount of carbon disulphide expressed maintains the level of the pool 6 constant.  The particles are conveyed through the chamber 15 on a conveyer belt 14 and are delivered to a hopper 17 from which they are removed by a screw 18. Passage through the xanthation chamber may take about 90 minutes. Gaseous ammonia may be supplied to the chamber 15 through a pipe 19. The alkali cellulose particles may also be prepared by a slurry steeping process.
Patent GB-502617-A (GB)
Title: Improvements in or relating to furnaces of the conveyor-belt type for the continuous heat-treatment of materials
IPC: F27B9/24
Filed: 1937-09-23
Abstract: 502,617. Endless - belt conveyers. BIRMINGHAM ELECTRIC FURNACES, Ltd., LOBLEY, A. G., and KERFOOT, F. Sept. 23, 1937, No. 25760. [Class 78 (i)] A furnace conveyer a<1>, which is driven by pinch or gripping rolls on the lower idle flight, has a loose loop k between these rolls and a guide roller b<1> at the entrance end of the furnace, this roller being positively driven at such a speed that it tends to move the belt faster than the main driving-rolls.
Patent GB-668816-A (GB)
Title: Improvements in convertible furniture
IPC: A47C1/032
Filed: 1950-10-23
Abstract: 668,816. Bed-settees. LODWICK AIRCRAFT INDUSTRIES, Inc. Oct. 23, 1950. [Nov. 2, 1949; Nov. 2,1949; Dec. 9, 1949] No. 25790/50. Class 52 (ii). [Also in Group XXV] A bed-settee comprises a base, three body-supporting sections two of said sections combining to form a back rest and being hinged together, the third section forming the seat portion and linked to the base. As shown the back rest 12 comprises two sections 13, 14 hinged together while the section 13 is carried by two levers 20, 23 pivoted to brackets 17, 19 on the base and section 13 respectively. The seat 11 is connected to the base 10 by a lever 33 pivoted at 34 to an extension 18 of the bracket 17 and to the seat at 36 and during unfolding of the settee the seat 11 is moved rearwardly and into a horizontal position by means of a link 37 pivoted at one end at 36 and at the other end 38 to a lever 28 having a slot 30 with which engages a pin 32 on an extension 31 of the lever 23, a counterbalancing spring 40 interconnecting the base 10 with a link 39 pivoted at 38 having a lateral projection 42 adapted to engage and support the lever 28. Continued unfolding from the position shown in Fig. 3 to that shown in Fig. 4 further rotates the lever 28 in the counterclockwise direction causing the seat 11 to be moved slightly forwardly to abut against the section 13 when the latter is in its horizontal bed position. The sections 13, 14 are arranged to hinge about an axis coinciding with the point 49, Fig. 3 but the hinge mechanism (see Group XXV) is arranged in spaced relation to the point 49. The hinge mechanism is linked by a link 66 to legs 15 adapted to support section 14 in bed position the legs being moved into operative position as the section 14 is unfolded. The chair or settee may be provided with arm rests which in operative position overlap the sides of the seat but may be folded outwardly and downwardly when the settee is unfolded to bed position.
Patent GB-574671-A (GB)
Title: Improvements relating to axle bearings
IPC: B61F15/14
Filed: 1944-12-22
Abstract: 574,671. Thrust bearings; lubricating. BRITISH TIMKEN, Ltd. (Timken Roller Bearing Co.). Dec. 22, 1944, No. 25825. [Classes 12 (i) and 12 (iii)] In an axle bearing construction comprising an axle 1, Fig. 1, having a bearing seat 23 on which is pressed an inner bearing member 9 and a shoulder 22 separated from the bearing seat by a shallow groove 21, the thrust is transmitted from the inner bearing member to the shoulder by means of a split ring 24, on which is mounted a ring 26. The ring 24 has shoulders 25 engaged by shoulders 27 on the ring 26 which is in contact with the inner race 9 of the inmost roller bearing. Ring 26 has a disc 28 with peripheral flange 29 constituting an oil impeller. The ring 26 may be dispensed with and the race 9 directly engage the shoulders 25. In another modification, Fig. 8, the split ring 24 is dispensed with and the ring 26d directly engages the axle shoulder 22d.
Patent GB-1015735-A (GB)
Title: Self-adjusting latch
IPC: E05B65/19
Filed: 1964-06-23
Abstract: 1,015,735. Latches. ATWOOD VACUUM MACHINE CO. June 23, 1964 [June 25, 1963], No. 25826/64. Heading E2A. A latch for securing together two relatively movable vehicle body parts comprises a housing 10, 11 on one part formed with an entry slot 12 to receive a striker 13 carried on the other part, and means for securing the striker in the entry slot comprising a pivotally mounted latch member 14 having a locking jaw 18 arranged to be engaged and rotated by the striker to close over and retain the striker, the latch member being resiliently urged into the open position, means being provided for locking the latch member to prevent rotation in the release direction, said locking means being released on the actuation of a pivoted lever which carries a safety latch. In the embodiment described the upper end of the latch member has a locking jaw 18 the lower portion 19 of which extends beyond the upper portion. The latch member is urged to the open position by a spring 20. The lower edge of the latch member has a series of teeth 21 into engagement with which is urged a pivoted pawl 15 in its closed position so as to retain the latch member in that position. The pawl may be released by a lever 30 with a safety hook 23 formed at its upper end the nose 25 of which is urged to extend across the slot 12 by a spring 24 but so shaped that it can be pushed aside by the entering striker or staple. When the lever 30 is rotated an abutment 26 engages a tail portion 27 of the pawl and trips the pawl to disengage the ratchet. Some lost motion is provided between the abutment 26 and the portion 27 to ensure that the safety hook 23 is moved clear of the slot before the latch member is released. When the bonnet lid is closed, and the staple has passed the nose 25 it engages the lower portion 19 of the locking jaw pivoting the latch member into the closed position thus locking the teeth 21 with the pawl 15, further downward movement causing the pawl to engage further along the row of teeth.
Patent GB-423882-A (GB)
Title: A means of facilitating the cooking of canned food
IPC: A47J43/28
Filed: 1934-01-29
Abstract: 423,882. Cooking canned food. LAING, J., 30, Digswell Road, Welwyn Garden City, Hertfordshire. Jan. 29, 1934, No. 25882/33. [Classes 21 and 66] A venting device for facilitating the cooking of canned food comprises a metal collar a above which is mounted by arms b, a cylindrical part c from one end of which project two spikes e; a wood-screw d attached by the head to the undersurface of the part c projects downwardly through the collar and is passed through an opening f in a rubber cup g, adjacent openings i, j being provided. In use, holes are punched in the end of the tin by means of the spikes, one being in the centre of the end, and the device is attached to the tin by inserting the projecting part of the screw into the central hole.
Patent GB-387961-A (GB)
Title: Improved method of and means for ventilating the stators of dynamo-electric machines
IPC: H02K1/32
Filed: 1932-05-19
Abstract: 387,961. Cooling dynamo-electric machines. EHRMANN, P., 60, Rue Madame, Paris. May 19, 1932, No. 26106. Convention date, May 19, 1931. Divided on 389,313. [Class 35.] Cooling air is admitted to the stator of a dynamo-electric machine by passages in the casing narrowing in the direction of the flow of air and escapes through other passages which widen in the same direction so that any cross section of the passages is approximately proportional to the amount of air passing at the point. In the arrangement shown the air enters by passages 33, passes over the surface of the stator, which is formed of laminations 321, 322 of different sizes to increase the cooling surface and escapes by passages 34. Modifications are described in which the laminations are formed with pins and notches, and in which the air flows through radial and axial passages. in the stator as well as over its surface.
Patent GB-158064-A (GB)
Title: An improved lock for cycles and motor-cycles and other motor road vehicles
IPC: B60R25/021
Filed: 1919-10-24
Abstract: 158,064. Tattershall, M. W. Oct. 24, 1919. Guarding against unauthorized use.-A lock of the pin-tumbler type fitted with a plug b carrying at its end a pin c for locking the steering rod B of a motor vehicle or cycle to the rigid casing A is enclosed in a shell a integral with, or fixed to, the casing. Two independently rotatable concentric sleeves h and j, each slotted to allow of the passage of the locking pins d, and with lugs working in slots to ensure their requisite rotation, are fitted between the plug and the shell. To unlock, the key is inserted into keyhole f, lifting the pins e flush with the surface of the plug and pushing locking pins d into the neutral position. The plug can then be rotated, moving the holes in it out of register with the pins d and turning the sleeves j and h so that neither sets of pins e or d can protrude. The rotation of the key also brings the projection r of the casing into register with a slot m in the plug flange b<1>, allowing the plug to be bodily withdrawn, removing the pin c. Locking is effected by the reverse process.