baber/WOPTO huggingface dataset:
Patent GB-960667-A (GB)
Title: Voltage surge protector
IPC: H02H9/04
Filed: 1962-04-16
Abstract: 960,667. Overvoltage protection. GENERAL ELECTRIC CO. April 16, 1962 [April 26, 1961], No. 14661/62. Heading H2H. An overvoltage protective circuit comprises a non-linear resistance 13 in series with a 4- layer diode which conducts when the voltage across a supply 10, 11 exceeds a determined value, thus charging a capacitor 23 to above the normal supply voltage. The diode is blocked by capacitor reverse current when the supply voltage falls. A diode 24 prevents damage to the 4 layer diode from reverse voltages. In another arrangement (Fig. 1, not shown), a silicon controlled rectifier replaces the diode 30.
Patent GB-388262-A (GB)
Title: Improvements in or relating to the combustion chambers and pistons of internal combustion engines of the diesel or compression ignition type
IPC: F02B19/04
Filed: 1932-05-24
Abstract: 388,262. Oil engines. WISEMAN, Ltd., A. and WISEMAN, A., 89, Glover Street, Birmingham. May 24, 1932, No. 14683. [Class 7 (iii).] The combustion chamber 1 of a Diesel or compression-ignition engine is connected to the working cylinder by an offset constricted passage into which a projection 4 on the piston enters so as to leave an air duct 9 which extends across the entire width of the combustion chamber. A fuel injector 16 and air inlet and exhaust valves 14, 15 are located in the combustion chamber, which may be of cylindrical, ellipsoidal, or oblate cylindrical form, the projection on the piston being square or rectangular in cross section. Specifications 185,706, [Class 7 (iii), Internal-combustion engines, Carburetting apparatus &c. for], and 361,202 are referred to.
Patent GB-237696-A (GB)
Title: Improvements in or relating to pit tubs, colliery corves and the like tramway or railway vehicles
IPC: B61D11/02
Filed: 1924-06-18
Abstract: 237,696. Nicholls, J. H. June 18, 1924. Corves; sides, floors.-A pit-tub or like vehicle is constructed of two or more plates adapted to be placed transversely one over another so as to constitute the bottom of the vehicle, the extending portions of each plate being bent upwardly to form the sides or ends. Each plate is cut away on each side and intermediate of its length to the depth of the flange d, and for a distance equal to the length and width of the base respectively. Each uncut portion of each plate is bent upwardly at right angles to form the sides g and ends c, and each portion d is turned at right angles to form flanges by which the sides and ends are secured. One plate is placed inside the other and a body having two thicknesses of plate at the bottom is formed. Strengthening straps may be placed around the top of the body between the side flange. One plate only may have the inwardly bent flanges d; and more than two plates may be employed. The bottom plate may be in the form of. a well. The sides and ends may be corrugated.
Patent GB-1188023-A (GB)
Title: Photographic Emulsions
Inventor: WHITELEY THOMAS EDWARD
IPC: G03C1/053
Filed: 1967-03-31
Abstract: 1,188,023. Photographic silver halide emulsions. EASTMAN KODAK CO. March 31, 1967 [April 4, 1966], No.14860/67. Heading G2C. A photographic silver halide emulsion contains as an anti-foggant a vinyl polymer in which at least 5 per cent of the vinyl units contain a sulphate ester alkali-metal or ammonium salt group. Specified polymers and copolymers are copoly (vinyl alcohol, vinyl hydrogen sulphate) ammonium salt, copoly-(vinyl alcohol, vinyl hydrogen sulphate, vinyl 2-hydroxy-5-sulphophenyl carbonate) sodium salt, the mixed ammonium-sodium salts of copoly- (α-sulphatomethyl-ethyl acrylate, α-hydroxymethylethylacrylate) and copoly-(N-#-sulphatoethylacrylamide, #-hydroxyethylacrylamide). In some emulsions the polymers act as speed-increasing compounds.
Patent GB-226743-A (GB)
Title: Improvements in or relating to trimmers or cutters for driving belts
IPC: C14B5/04
Filed: 1924-06-19
Abstract: 226,743. Camp, H. J., and Watson, C. June 19,1924. Traversing-cutter apparatus.- A belt 15, is held by a clamp and to a bed 5 and by a cutter 20 secured to a manually operated slide 17 working in a groove in the bed. The clamp, lifted by springs encircling bolt 8 fixed to the bed, and depressed by wing-nuts 12, has a side face 24 which, together with a face on the bed forms a guide against which the knife 20 cuts. An edge guide 14 is provided for the belt.
Patent GB-1217035-A (GB)
Title: A method for controlling the oxidation of carbohydrates or polyhydric alcohols
IPC: C12P1/00
Filed: 1968-03-28
Abstract: 1,217,035. Monocarboxylic acids. POLITECHNIKA SLASKA IM-W. PSTROWSKIEGO. 28 March, 1968 [28 March, 1967 (2); 30 Sept., 1967], No. 14902/68. Heading C2C. A method of controlling the oxidation of a feedstock containing a carbohydrate or polyhydric alcohol comprises treating the feedstock with an oxidizing agent, and removing the monocarboxylic acid so formed from the reaction mixture so that the feedstock is maintained in the reaction mixture at a concentration greater than that of the monocarboxylic acid. Suitable specified oxidizing agents include nitric acid, nitrous acid, nitrogen oxides, halogens, oxygen, ozone, enzymes and microbiological oxidizing agents. The acid may be removed by means of ion-exchange electrodialysis or sorption. The oxidation may be carried electrochemically, e.g. by using the apparatus shown in Fig. 1 below wherein 2 and 3 are anion- and cation-exchange diaphragms respectively, or by means of a continuous flow process (not shown). Examples describe the preparation of 2-keto-D-gluconic acid by the oxidation of D-fructose; 2-keto-1- gulonic acid by the fermentation of sorbitol, and lactic acid by the fermentation of saccharose.
Patent GB-1103135-A (GB)
Title: Prevention of anaphylactic shock
IPC: A61K31/445
Filed: 1966-04-04
Abstract: Therapeutic compositions, free of the danger of causing anaphylactic shock and other allergic manifestations, comprise a therapeutic amount of a drug capable of causing anaphylactic shock and other allergic manifestations in at least some subjects, and at least one beta-(2-pyridyl-C1-C5 alkyl)-amine, beta-(4-pyridyl-C1-C5 alkyl) amine or non-toxic acid addition salts thereof in an amount sufficient to prevent anaphylactic shock by the administration of said drug.  The drug may be a penicillin or an antihistamine, e.g. brompheniramine, carbinoxamine, chlorcyclizine, chlorothen, chlorpheniramine, cyclizine, dexbrompheniramine, dexchlorpheniramine, dimenhydrinate, diphenhydramine, diphenylpyraline, doxylamine, meclizine, methaphenilene, methapyrilone, phenindamine, pheniramine, promethyazine, pyrathazine, pyrilamine, pyrrobutamine, thonzylamine, tripelennamine and triprolidine. The preferred amines are beta-(2-pyridyl)-ethyl methyl amine, beta-(4-pyridyl)-ethyl methyl amine, 1-(2-pyridyl)-2 methyl amino propane and non-toxic acid addition salts thereof such as the hydrochloride, tartrate, fumarate and gluconate.  The compositions may be administered by injection or orally, e.g. in the form of sustained release tablets or capsules; compositions containing a penicillin may also be applied topically.
Patent GB-1509996-A (GB)
Title: Propeller blade structure
IPC: B63H1/26
Filed: 1975-04-11
Abstract: 1509996 Propeller blades BOLT BERANEK & NEWMAN Inc 11 April 1975 [12 April 1974] 14983/75 Heading B7V A marine propeller blade has a forwardly skewed leading edge 1 and an unsymmetrically disposed trailing edge 2 of the same general outline, the blade sections being of hydrofoil shape with a rounded nose, and the minimum blade section thickness-to-chord ratio being not less than 6%.
Patent GB-514968-A (GB)
Title: Improvements in or relating to harrows
IPC: A01B19/02
Filed: 1938-05-19
Abstract: 514,968. Implements for working land. WILDER, H. H. May 19, 1938, No. 14991. [Class 6 (1)] A double - ended tine comprises a blade part 18, Fig. 1. and a holder part 19 having aligned apertures for the tine shaft, a projecting portion 23, 24 on one part engaging in a recess or aperture in the other so as positively to prevent relative rotation of these parts when the tine is mounted on the tine shaft. The tines are mounted on separate shafts 16, 17, Fig. 1, the frame members 1, 3, 5 being rigidly connected to frame member 6 whereas the frame 2, 4, 7 is pivotally connected to member 6, so that the two halves of the frame pivot freely to follow the contour of the ground The tine shafts 16. 17 can be allowed to rotate through. 18( degrees from time to time under control of lever 51 through trip mechanism comprising a detent 47, Fig. 4, anc toothed member 33 through which passes the shaft 17. Tc enable the working angle of the tines to be adjusted, the shaft 17 carries an externally - toothed part 32 engaging a corresponding internally-toothed aperture in the member 33, these parts being shown unassembled in Fig. 4. Draught chains 74 - - - 77, spaced by a bar 78, are connected to shackles 70, 71, 72. Six curved members 80 control the depth of work and facilitate transport. In order to enable the lever 51 to be retained in its forward position, should it be desired to allow the tine shaft to rotate freely, a weighted catch 60 can engage a notch 61 the lower edge of which is so shaped to facilitate the release of the lever 51 by pulling it beyond the notch and then releasing it. Specification 203,139, [Class 6 (i)], is referred to.
Patent GB-713377-A (GB)
Title: Improvements in letter box plates
Inventor: REID ROBERT FERGUS
IPC: A47G29/126
Filed: 1952-06-14
Abstract: 713,377. Letter-box door plate. TAYLOR, REID & CO., Ltd. June 15, 1953 [June 14, 1952; July 1, 1952; Aug. 16, 1952], Nos. 15024/52, 16497/52 and 20638/52. Class 18 A letter-box door plate has members C slidable in grooves to vary the longitudinal spacing of the securing bolts D, the members C having tapped holes c to enable the bolts to be adjusted vertically. The holes c are preferably arranged assymetrically with respect to the members C so that by inverting the members in their grooves, further vertical positions may be obtained.
Patent GB-832349-A (GB)
Title: Improvements in and relating to cooling systems for electrical apparatus
IPC: H01F27/12
Filed: 1956-05-15
Abstract: 832,349. Cooling systems for electrical apparatus. GENERAL ELECTRIC CO. May 15, 1956 [May 17, 1955], No. 15116/56. Class 64(3) [Also in Group XXXV] In a cooling system for electrical apparatus, a jet pump is provided in the lower part of a tank 13 which contains the apparatus immersed in a liquid coolant, the discharge opening 34 and suction inlet 36 of the jet pump communicating with the coolant in the vicinity of the pump and the pressure inlet 33 of the jet pump being supplied with a flow of said coolant from a part of the tank situated substantially higher than the jet pump, said supply being through the intermediary of a driven pump. In the form shown, a power transformer comprising a core 11 and windings 12 is immersed in a dielectric fluid contained in the tank 13. A baffle 19 in the lower part of the tank ensures that dielectric fluid leaving a chamber 21 defined by the baffle, must flow through ducts 22 in the transformer windings 12. Fluid is drawn from the upper part of the tank 13 by a pump 23 and forced downwardly through the tubes 15 of an air or liquid cooled heat exchanger to a header 17 from which it re-enters the tank at the lower end thereof either above (as shown) or below the baffle 19. At the same time a further pump 31 passes fluid from the upper end of the tank to the jet nozzle 33 located below the baffle 19 and within a Venturi member 34 which has an inlet connected to an aperture in the baffle 19 so that fluid above the baffle is drawn into 'the chamber 21 and forced upwardly through the ducts 22 in the windings 12. The heat exchanger may be one in which the fluid flow through the tubes is by natural gravity circulation. Modifications are described in which a single pump 23 is used to pass the fluid through the heat exchanger tubes and thence to the tank in part through the nozzle 33 and Venturi 34 and in part through a duct 40 (Fig. 4) located either above (as shown) or below the baffle 19. The pump 23 may be located either downstream or upstream of the heat exchanger. The cooling fluid may flow downwardly through the transformer and upwardly through the heat exchanger.
Patent GB-402401-A (GB)
Title: Improvements in or relating to television image receiving systems
IPC: H04N3/08
Filed: 1932-05-28
Abstract: 402,401. Television. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Ives, H. E. ; 32, Laurel Place, Montclair, New Jersey, U.S.A.) May 28, 1932, No. 15190. Convention date, May 29, 1931. [Class 40 (iii).] In a scanning device for television &c systems of the kind comprising a number of reflecting strips helically disposed about an axis of rotation and illuminated by a laterally located and controlled linear light-source so that the image may be directly observed by the eye, means are provided for converting the divergent light rays from the source 12 after reflection from the strips into parallel rays in a plane perpendicular to the axis of the mirror helix, e.g., by the use of a cylindrical lens between the light source and the helix, or by making the reflecting edges of the strips cylindrically concave. In the arrangement shown in Figs. 1 and 2, the light-source 12 is disposed at the principal focus of a cylindrical lens 14, and the parallel rays 20, 21, 24 transmitted therethrough proceed after reflection from plane surfaces on the helix along parallel paths 22, 23, 25 to the observer. The reflecting strips 1-10 are mounted on a common shaft 15 with equal angular spaces between adjacent strips, both edges of which are polished to form reflectors while the ends are coated with black paint or similar material, this arrangement allowing the image to be scanned completely during one half revolution of the helix. In order to facilitate observation of the image from several positions, the light source 12 and lens 14 are made longer than the helix, while a shield 13 prevents light from falling directly on the observer's eyes. In a modification, Fig. 3, the reflecting edges of the strips are cylindrically concave, and the light-source 12 is disposed so that the reflected rays 22, 23, 25 are parallel. The Specification also discuses the method of determining the distance of the observer's eye from the helix in order that the viewed image may coincide with the dimensions of the helix. Specifications 358,411 and 400,626 are referred to.
Patent GB-237411-A (GB)
Title: Improvements in wheel guards for spinning, doubling, twisting and like machines used in the production of yarns or threads
IPC: D01H1/16
Filed: 1924-06-24
Abstract: 237,411. Rhodes, A. June 24, 1924. Guards.-A guard for the wheels 6, 14 .. 16 driving the front rollers of spinning, doubling, twisting, &c. machines of the continuous type comprises an upper part 2 mounted on an adjustable horizontal hinge 4, and a lower part 3, mounted on a vertical hinge 8, this lower part being held in position by a latch 17 and by the edge c, Fig. 7, of the part 2. The edge c is adapted to be within the side walls of the part 3 at its rear end and in a notch f in the front wall d, while the edge of a plate a on the part 2 takes into a shield (not shown) fixed to the machine frame A. The hinge pin 8 passes through the hinge pin 4 and a fixed stud 10, in which it is supported by a collar 9, so that it may be lifted out to remove the lower shield 3 and permit removal of the upper shield 2.
Patent GB-893739-A (GB)
Title: Improvements in heat generators
Inventor: GOUBSKY GREGORY MICHAEL
IPC: F23M5/08
Filed: 1959-05-04
Abstract: 893,739. Oil-fired heat generators. COLT VENTILATION Ltd. April 29, 1960 [May 4, 1959], No. 15247/59. Class 51 (1). An oil-fired heater comprises a cylindrical combustion chamber 1 with tapering ends 7, 11, surrounded by concentric sleeves 3, 4 forming annular air passages 5, 6. The top of the outer sleeve 4 is connected to the upper part of the combustion chamber and the lower end is closed save for an inlet 9 for combustion air under pressure. The inner sleeve 3 is open at the top and closed at the bottom by an annular plate 13 continuous with a plate 10 closing the bottom of a cylindrical collar 12 connected to the tapered lower part 11 of the combustion chamber. A pressure fuel jet 16 and igniters 17 are mounted within the collar 12, which has vaned primary air inlets 15, so that the air is supplied with a swirl. Holes 11a in the tapered part of the combustion chamber provide further air, and air inlets 14 in the upper part of the chamber are vaned to swirl the secondary air supply in the opposite sense to the primary air. The air passes up the outer annular passage and down the inner passage, vanes 18 assisting in the preheating of the air. A tapered rim 21 helps control the flame issuing from the collar 12, and flame detectors may be mounted in the lower part 20 of the outer air supply passage.
Patent GB-853525-A (GB)
Title: Improvements relating to road-surfacing compositions and the like
Inventor: ROBIN PETER HUTCHINSON
IPC: C08L95/00
Filed: 1956-05-17
Abstract: A bituminous composition comprises tar, 1-5% of at least one polyvinyl compound and a fibrous filler.  A plasticizer, e.g. tri cresyl or tri phenyl phosphate may also be present, as may also be pitch and a heavy creosote oil.  The polyvinyl compounds are limited to polyvinyl chloride, acetate and other acetates, copolymers of vinyl chloride with vinyl acetate or vinylidene chloride, polystyrene, and copolymers of styrene and a diene. Specified fibrous fillers are asbestos, rock wool, cotton-seed, glass, and sisal, but non-fibrous fillers, e.g. limestone, whitening and brick dust may also be present.  Specification 777,067 is referred to.
Patent GB-1383891-A (GB)
Title: Flame cutting device
IPC: B23K7/00
Filed: 1973-03-30
Abstract: 1383891 Flame cutting MESSER GRIESHEIM GmbH 30 March 1973 [30 March 1972] 15370/73 Heading B3V A flame cutting device comprises a carriage 10 carrying a cutting torch 14 and pivotally mounting a feeler lever 50 pivotally connected to a portion 30 of a piston-rod 30, 28 of a double acting cylinder 16, the arrangement being such that the feeler lever 50 on contact with the workpiece 52 is pivoted at 48 relative to the advancing carriage 10 to cause cams 32, 34 on a portion 28 of the piston-rod to operate limit switches 36, 38 which control the cutting process. The lever 50 is connected by a bell crank lever 46 and rod 44 to the piston-rod portion 30 which is connected to a piston 26 of the cylinder 16 fixed to the carriage 10. The other side of the piston 26 is connected to the piston-rod portion 28 carrying cams 32, 34. The piston 26 is initially maintained in its lower position by fluid under pressure supplied from a source (62), (Fig. 2, not shown) via valves (66, 60) and a pressure reducing device (68). In operation, the carriage 10 is moved towards the workpiece 52 at high speed but when the feeler lever 50 contacts the workpiece 52, it is pivoted to cause the piston 26 to move upwards and the cam 32 to actuate the limit switch 36, whereupon the carriage 10 is slowed or stopped and preheating flames are applied to the workpiece 52. After a predetermined time interval the valve (60) may be switched to cause the piston 26 to be raised by fluid pressure whereupon the limit switch 38 is operated by the cam 34 to turn on the cutting oxygen and to move the carriage 10 at the cutting speed.
Patent GB-475665-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J9/32
Filed: 1936-06-02
Abstract: 475,665. Uniting metal to vitreous material by heat. M-O VALVE CO., Ltd., and SMITHELLS, C. J. June 2, 1936, No. 15399. [Class 36] In electric discharge devices, more particularly thermionic valves, of the type wherein a substantial part of the envelope is of metal, and leading-in wires pass through glass seals by which they are insulated from each other and from the metal part of the envelope, the metal part comprises a metal member 1 provided with a hole which is occupied and sealed by a glass member 2 moulded in situ, with leading-in wires 3 passing through the glass. A glass pumping-tube 4 is preferably also sealed within the glass. Fig. 2 shows the parts supported on a die 5 in readiness to receive molten glass which is poured into the metal annulus 1 and pressed by a plunger while still plastic. In order to unite the glass firmly to the metal, and relieve strains, the completed structure is removed from the die, heated until the glass becomes plastic and wets the metal, and then cooled slowly. In an alternative method powdered glass is used instead of molten glass and, while in the die, is consolidated by pressure and sintered to become coherent. The heating necessary to causo union between the powdered glass and metal is preferably performed after the removal of the structure from the die. In another method a glass body in the form of a disc is moulded independently of the metal annulus, either by casting molten glass, or by sintering consolidated powdered glass. This body has a central hole to receive a pumping-tube and holes for the leading-in wires, which are assembled in position when the member is mounted in a die in order for it to be heated to soften the glass, a plunger then being actuated to squeeze the glass into contact with the annulus, wires, and pumping-tube.
Patent GB-930198-A (GB)
Title: Combined stretch and wipe forming machine with automatic transverse control of the wipe shoe
Inventor: ROOT CLINTON HOWARD
IPC: B21D11/02
Filed: 1962-04-24
Abstract: 930,198. Stretch forming; bending. CYRIL BATH CO. April 24, 1962, No. 15473/62. Class 83 (4). A combined stretch and wipe forming machine of the kind having a table 2 upon which is mounted a side face die 25 about which elongated stock 19 is wrapped by holding one end of the stock so as to induce tension loads in it and rotating the table with the die 25 on it, and also having a wipe shoe 30 engageable with the stock at or near the point of contact thereof with the face of the die, has means 46 for traversing the wipe shoe 30 independently of rotation of the table 2, the wipe shoe 30 having means 63, 64 thereon for conveying a signal to the wipe shoe traversing means 46 to adjust the position of the wipe shoe 30 in relation to the instantaneous line of contact between the stock and the side face of the die such that a contact portion of the shoe presses the stock against the side face of the die normally at the instantaneous line of contact between the stock and the side face of the die during rotation of the table 2, the means for conveying a signal to the wipe shoe traversing means being operative to convey a signal to traverse the wipe shoe rearwardly or forwardly. The stock 19 is held in tension by piston and cylinder means 10. The wipe shoe 30 is movable to or from the die 25 by piston and cylinder means 35 mounted on a carriage 34 traversed by the piston and cylinder means 46. To maintain the central part of the wipe shoe 30 generally in contact, contact pins 63, 64 carried at the front and rear of the shoe 30 control a valve 50 controlling the piston and cylinder means 46 so that if the contact 63 or both the contacts 63, 64 together are depressed the shoe 30 is traversed forwardly, i.e. in a direction opposite that of the table travel, while if the contact 64 alone is depressed the shoe is traversed rearwardly. The contact pins 63, 64 may be replaced by microswitches or switches in the form of strain gauges. The shoe may comprise a roll having sensing means before and behind it.