baber/WOPTO huggingface dataset:
Patent GB-989668-A (GB)
Title: Regeneration of hydrocarbon solutions of trialkyl phosphate used in processing of nuclear fuel
IPC: G21C19/46
Filed: 1963-06-13
Abstract: A solution of a trialkyl phosphate in a hydrocarbon solvent, which has been used for the extraction of actinides from neutron-irradiated fuel, is regenerated by treating it with an aqueous magnesium hydroxide slurry, whereby the fission products and decomposition products from the extractant solution are taken up by the slurry, which is then separated from the regenerated extractant.  The magnesium hydroxide is preferably suspended in an aqueous NaOH solution, a concentration of 1-10% by weight in a 0.5 to 2 M NaOH solution being satisfactory, and 5% in a 1 M NaOH solution being preferred.  In an example the performances of magnesium hydroxide slurries are compared with those of magnesium carbonate, calcium hydroxide and calcium carbonate slurries and with those of sodium hydroxide and carbonate solutions, with and without potassium permanganate, in the regeneration of a solution of tributyl phosphate in kerosene.  The slurry may be obtained by adding the metal nitrate to a sodium hydroxide solution.
Patent GB-229220-A (GB)
Title: Collapsible perambulator
IPC: B62B7/10
Filed: 1924-10-06
Abstract: 229,220. Ohlsen, H. Nielsen-. Oct. 6, 1924. Mud-guards.- A perambulator body of box-like form is closed when required by boards 9, 10 which are pivoted to each other and to the ends of the body and may when folded out serve as screens or mud-guards for the sides of the vehicle.
Patent GB-888944-A (GB)
Title: Improvements in or relating to electronic apparatus
Inventor: MATTHEWS ROBERT
IPC: H05K7/20
Filed: 1959-07-09
Abstract: 888,944. Automatic temperature control systems. DECCA RECORD CO. Ltd. July 5, 1960 [July 9, 1959], No. 23625/59. Class 38 (4). [Also in Group XXXVI] Electronic apparatus, contained in a thermally-insulated housing, is cooled by fluid from a refrigerator circulated in its housing and, if desired, heated by a heating blanket within the housing, a temperature-sensitive device in the housing controlling the internal temperature. Four insulated cabinets 10, 11, 12, 13 are stacked on a set of base units 14, 16, 18 which house a heat-exchanger 15 and refrigerator 17. The base units supply the cabinets with coolant, such as light oil, via pipe-lines 35, 36. Each cabinet Fig. 3, houses a number of plug-in units, Fig. 6, on which components 48 are mounted, and consists of an insulated housing with a lockable, air-tight insulated door at each end. Inside the insulated cabinet is an electrical heating blanket 40 and a ducted metal plate 21 which forms the inner surface of the cabinet. Each cabinet contains a pump (not shown) for the cooling fluid and, in each cabinet, the heating blanket and pump are controlled by a temperaturesensitive resistive element which is mounted on one of the plug-in component panels. The outer doors 23, 24 of the cabinet hinge downward in a horizontal position to provide a working- surface. The front door 23 carries a number of indicating lamps, the electrical connections for which are effected through contacts 28. Immediately behind the front and rear doors of the cabinet there are provided second doors 75 formed of transparent plastic material. The door 75 is provided with a series of vertical slots providing access to controls on the plug-in panels, these vertical slots can be covered by a slidable plate 76. The plug-in component panels are located within the cabinets by nylon strips 45. The plug-in unit consists of a metal frame 49 having flanges 50 along top and bottom edges. Along these flanges is mounted a sinuous spring strip 51 which makes good thermal contact with the ducted metal plate forming the inner surface of the cabinet. Transistors 73 and the temperature-control element are mounted on the metal surround 49 of the component panels by spring clips 71 (Fig. 9, not shown).
Patent GB-772024-A (GB)
Title: Improvements relating to bedpans
Inventor: DUNN RICHARD LAWRENCE
IPC: A61G9/00
Filed: 1954-08-14
Abstract: 772,024. Bedpans. DUNLOP RUBBER CO., Ltd. July 12, 1955 [Aug. 14, 1954], No. 23682/54. Class 26. A bedpan 1 whose crosssection decreases downwardly has a cushioning 2 of resilient material extending around a major part of its top, the cushioning having a cover 3 of non-cellular flexible sheet material with a flap 4 fitting closely around the pan sides to hold securely the cushioning 2 in place. The cushioning 2 may be of foam rubber or an expanded synthetic resin such as a polyurethane foam or expanded PVC, and the bedpan of metal.
Patent GB-374334-A (GB)
Title: Improvements in and relating to safety devices for internal combustion engines
IPC: F02N19/10
Filed: 1931-08-24
Abstract: 374,334. Thermally-actuated valves. ALBERTSON, W. E., 2565, Ernest Street, and MOODY, M. D., 411, Liberty Street, both in Jacksonville, Florida, U.S.A. Aug. 24, 1931, No. 23756. [Class 135.] A valve device for automatically emptying a liquid container particularly adapted for use on the radiators of motor cars comprises a valve normally held closed by a fusible member adapted to be blown by an electric current .controlled by a thermally actuated switch. The valve 26 which has a fibre face 27 is loaded to open by a spring 31, and is mounted on a bent lever 28 pivoted at 29 to a lug 30 on the valve casing. The fusible member 36 is mounted between a pair of leaf springs 32, 33, one attached to a fixed block of insulating material 34 and the other to an insulating washer carried by the lever 28. The spring 32 is connected by a wire 39 to a low temperature contact 19 on an indicating instrument 17 connected to a thermostat in the water jacket of the engine while the spring 33 is connected by a wire 40 to a battery B having one terminal earthed. The pointer of the instrument is also earthed so that when the temperature falls to a predetermined minimum the circuit is completed to blow the fuse. The indicating instrument may have a high temperature contact 41 adapted to complete a local circuit through a fuse 43 in the ignition circuit, to blow the fuse and stop the engine.
Patent GB-282508-A (GB)
Title: Improved process for the oxidation of hydrogen sulphide contained in industrial gases to sulphur
IPC: C10K1/32
Filed: 1926-09-27
Abstract: 282,508. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Sept. 27, 1926, Sulphur.-In the oxidation of sulphuretted hydrogen present in industrial gases to sulphur in the presence of active carbon, silica gel or other adsorbent, the humidity of the gases is maintained at about 80 per cent saturation or above until the reaction is complete. According to one example illuminating gas, after the usual ammonia washing step, is passed through active carbon which is maintained at 20‹ C. whereby the humidity is prevented from falling due to the heat liberated during the reaction. In a second example the gases are passed through active carbon containing water, and in a third, water vapour is introduced into the gases in order to produce a humidity of at least 80 per cent. Specification 193,575, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-1308023-A (GB)
Title: Bladed rotors
IPC: B64C29/00
Filed: 1970-05-19
Abstract: 1308023 Helicoptor rotors UNITED AIRCRAFT CORP 19 May 1970 [17 July 1969] 24038/70 Heading B7W [Also in Divisions E2 F1 and F2] A helicopter rotor has blades 28 attached to a hub 50 by a flapping hinge 61 or a flexible section 150, Fig. 15, for movement relative to the hub, with a spring stack 104, the stiffness of which may be varied in a given plane, fixed across the hinge 61 or flexible section 150. Each blade 28 is mounted in a cuff 70 through bearings 57 to allow pitch changes controlled by horn 98. Cuff 70 is connected to hub 50 through hinge 61 and transmits centrifugal forces between the blade and hub. Spring stack 104 is rotatably mounted in the cuff 70 and in a mount 118 in hub 50 with an arm 140 or 160, Fig. 15, to rotate it to vary its stiffness. The spring stack comprises a stack of metal laminates separated by layers of Teflon (Registered Trade Mark), fastened together by a bolt 112 and mounted at each end in members 120, 130 which allow longitudinal movement of the laminates relative to one another while preventing lateral movement. The cross-section of the spring stack may be square, rectangular, circular, oval or polygonal. In the position shown in Fig. 3, the spring stack has maximum stiffness to flexing about hinge 61 and on rotation through 90 degrees so that the hinge axis 82 is parallel to the planes of the laminates it has minimum stiffness with intermediate stiffness between these positions. The spring stacks in all the blade hub connections may be operated simultanously through a star member (146), Fig. 9 (not shown). Two rotors are mounted at the wing tips of a convertiplane for rotation about the wing spanwise axis so as to operate as an articulated or semi-rigid helicopter rotor or a rigid propellor.
Patent GB-296003-A (GB)
Title: Improvements in apparatus for starting synchronous dynamoelectric machines
IPC: H02K7/118
Filed: 1928-08-21
Abstract: 296,003. Matabon, J. L., and Foucault, C., M. Aug. 22, 1927, [Convention date]. Drawings to Specification. Synchronizing dynamo-electric machines.-A small self-excited asynchronous synchronous motor with a rotary primary winding is coupled to a synchronous machine so that after starting and synchronizing the former the latter may be directly connected to the mains. An adjustment of the secondary of the former machine with reference to the stator of the synchronous machine and of its commutator brushes combined with a suitable arrangement of the leads from the primary winding, ensures phase co-incidence.
Patent GB-239381-A (GB)
Title: Window safety catch
IPC: E05F11/00
Filed: 1924-10-25
Abstract: 239,381. Anderson, J. Oct. 25, 1924, Catches, spring. - A catch for windows of the type comprising a spring-pressed pawl on the sash engaging a notch on the frame, to allow partial opening of the window, has a rounded end c on the pawl which enables it to operate smoothly, and a recess i in the tail h of the pawl, engaged by a key g when the key is turned to release the catch.
Patent GB-1116210-A (GB)
Title: Granular tetrafluoroethylene copolymer molding powders
IPC: C08F16/24
Filed: 1967-05-24
Abstract: A granular copolymer of tetrafluoroethylene and 0.003-1.5 mole per cent of a perfluorovinyl compound of formula CF2 = CFX, where X is perfluoroalkyl, o -hydroperfluoroalkyl, oxyperfluoroalkyl, oxy-o -hydroperfluoroalkyl and polyether homologues of oxyperfluoroalkyl; or perfluoro - 2 - methylene - 4 - methyl, 1,3-dioxolone is claimed which predominantly consists of spheroidal particles of average diameter 300-1800m .  The comonomer may be hexafluoropropylene or perfluoropropyl perfluorovinyl ether.  The copolymers may be prepared by polymerizing the monomers under pressure and heat in a mixture of water, ammonium persulphate, and Na2B4O7 or ammonium carbonate or hydroxide.
Patent GB-615772-A (GB)
Title: A process for isolating vanillin
IPC: C07C47/58
Filed: 1946-08-15
Abstract: Vanillin is isolated from its aqueous solutions by absorbing it at a pH of between 5 and 9 on to an adsorption agent having anion exchange properties, e.g. Wofatite, and eluting it therefrom by means of solvents capable of acting as eluants for the adsorbed vanillin, e.g. caustic alkali.
Patent GB-408141-A (GB)
Title: Improvements in or relating to a method of modifying the properties of rubber surfaces
IPC: B29C37/00
Filed: 1933-09-01
Abstract: The surface of a rubber deposit or coagulum formed directly by deposition or coagulation of rubber from an aqueous dispersion of rubber is treated with an aqueous solution or dispersion of an oxidizing agent.  The rubber may be vulcanized or unvulcanized, and in the latter case, if subsequently vulcanized, the surface remains less tacky.  Where an article is produced on a former the final surface may be treated or the deposition surface treated before deposition when the formed article is more easily removed from the former.  In this latter case the treating medium may be admixed with a binding agent such as glycerine and/or a wetting agent and/or be admixed with a coagulant, or be itself also a coagulant.  The rubber surface may, after treating, be treated with an alkali such as ammonia.  Examples of media for treating rubber surfaces are aqueous solutions of chlorine, bromine or iodine (containing potassium iodide), potassium dichromate, chromic acid, or potassium dichromate and sulphuric acid, bleaching powder, potassium permanganate, neutral, acid or alkaline, sodium hypochlorite, and, in most instances the rubber surface is further treated with an ammonia solution.  Where the deposition surface of the former &c., is treated, the treating agent may be as included in the above list or ammonium persulphate or hydrogen peroxide or solution of benzoyl peroxide in aqueous ethyl alcohol.  Where the treating agent contains heavy or alkaline earth metals e.g. zinc, magnesium, calcium, barium &c. permanganates they may act as coagulants also.  Articles specifically referred to whose surfaces may be thus treated include rubber covered rolls, plating racks, rubber lined tanks, garbage containers, tumbling barrels, pipes, tubing, bearings, gloves, shoes, bathing shoes, footholds (in which case the fabric or inner lining may be omitted), sheeting and balloons.
Patent GB-1220711-A (GB)
Title: Improvements in or relating to blades for use with moulded electrical plug connectors
IPC: H01R13/04
Filed: 1968-05-21
Abstract: 1,220,711. Making electrical plugs. HEYMAN MFG. CO. 21 May, 1968 [22 May, 1967], No. 24289/68. Heading B3A. [Also in Division H2] A moulded plug connector, Fig. 3, comprises an earth contact 20 formed from a strip of metal bent back on itself, each limb having embossed therein a trough-like portion 35, 36 of semicircular cross-section, the portions of the limbs adjacent portions 35, 36 being flat, and corresponding flat portions contacting one another so that the trough-like portions 35, 36 together form a totally enclosed tube. The free end 38 of one limb is bent at right-angles to form a projection 37 for keying to the material of the moulded connector body 25, and the free end of the other limb comprises a crimping ferrule 22 for connecting contact 20 to earth wire 27 of cable 30. The line and neutral contacts 21 comprise bent-over metal strips, intermediate portions of the limbs being bent slightly outwards; and the free ends of the limbs being formed as those of earth contact 20. Multiple sets of contacts 20, 21 are formed by passing a strip of metal, e.g. brass, through a press wherein it is subjected to a series of punching, blanking, shearing, shaping and folding steps (Fig. 1).
Patent GB-585902-A (GB)
Title: Improvements in liquid level indicating devices
IPC: B67D1/08
Filed: 1944-12-05
Abstract: 585,902. Indicating liquid-levels. CHLORIDE ELECTRICAL STORAGE CO., Ltd. (Murphy, H. P.). Dec. 5, 1944, No. 24320. [Class 123 (i)] [Also in Group XXXVI] In a liquid-level indicator, e.g., for an electric accumulator cell, comprising a transparent rod 4 with a roughened, etched, or like lower end 7 which is seen from the upper end as a bright. area when the bottom of the rod is not covered by liquid and as a dark area when it is covered, the rod 4 is curved above the container 1 so that its upper end 6 is vertical or approximately so, and is made of a transparent material having a relatively high refractive index, e.g., a methyl methacrylate resin, so that practically all the light transmitted in either direction in the rod passes round the curve, the bottom 7 of the rod being at or about the desired liquid level.
Patent GB-285336-A (GB)
Title: Improvements in and relating to the construction or arrangement of pockets in articles of clothing
IPC: A41D27/20
Filed: 1927-09-15
Abstract: 285,336. Richter, L. Sept. 15, 1927. Pockets. - In a jacket, overcoat, or waistcoat a pocket is provided having a transverse slit 3 dividing the pocket into upper and lower sacs 6, 5, and extending the whole width of the pocket, the lower extremity of which lies on or above the waist line.
Patent GB-1218904-A (GB)
Title: Method and apparatus for levelling underwater ground
Inventor: ITAMI YASUO
IPC: E02F5/00
Filed: 1969-05-13
Abstract: 1,218,904. Levelling of submerged ground; off-shore structures. JAPAN DEVELOPMENT & CONSTRUCTION CO. Ltd. 13 May, 1969 [23 Dec., 1968], No. 24356/69. Headings E1F and E1H. Levelling of submerged ground is carried out by a levelling machine, e.g. a submergible bulldozer 1, 9, that is powered from an anchorable ship 1 into which the machine can be raised for transport between work sites and is remotely controlled from a control panel 20 operated by a driver A located at a distance from the machine that allows of visual observation of the machine, the driver being supplied with air through a hose 21 connecting him to a source of air on the ship. The control panel transmits electrical command signals to actuators on the machine through electric cable that couples the panel to the actuators by way of the ship. For transport between work sites the machine is held in an open bottom compartment or well 17 in the ship by U-shaped members 27, 27' that are, on actuation of associated rams 28, 28' slidable through the side walls of the compartment to engage beneath the machine. Lowering or raising of the machine from or into the compartment is controlled by a winch 12 on the ship, which can be anchored by vertically movable spuds 7, 7' and anchors 10, 10'.
Patent GB-675925-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/72
Filed: 1950-10-06
Abstract: 675,925. Cathode-ray tubes. SHEFFIELD, F. C. Dec. 13, 1950 [Oct. 6, 1950; Nov. 2, 1950], Nos. 24417/50 and 26728/50. Class 39 (i). [Also in Group XL (b)] The image on the screen of a television picturereproducing tube is viewed through a grid comprised of a series of closelyopaque parallel lines which intersect the lines forming the image. The grid lines, which may consist of one or more series 13, 14 with the lines of each series parallel to one another and the lines of the different series intersecting each other and the image lines 11, may be applied directly to the screen of the tube.
Patent GB-862487-A (GB)
Title: Improvements relating to combined pneumatic spring and damping arrangements on motorvehicles
IPC: F16F9/04
Filed: 1959-07-16
Abstract: 862,487. Valves. DAIMLER-BENZ A.G. July 16, 1959 [July 16, 1958], No. 24491/59. Class 135. [Also in Group XXXII] A non-return valve for use in a pneumatic damping system and having a throttling passage 16, Fig. 3, is adapted to permit the escape of air through additional throttling passages when the pressure reaches a predetermined value. The valve is normally closed by a spring 20 which presses a flexible disc 18 into contact with an annular seating 23 and may be flexed open on reduction of pressure above the disc. Radial passages 25 cut in the seating 23 are opened when the disc 18 is flexed at high pressures above the disc. In another example the disc 16, Fig. 5, is coupled by a stirrup 31 and lever 28 to a dashpot (not shown) to damp the movements. The stirrup 31 carries a projection 34 which closes the throttle passage 16 during the initial part of the return stroke of the spring. As the pressure behind the valve 18 builds up the passage 16 is again opened as a result of the deformation of the valve 18.
Patent GB-599641-A (GB)
Title: Improvements in and relating to fasteners
IPC: F16B5/10
Filed: 1945-09-21
Abstract: 599,641. Stud-and-socket fasteners. DZUS, W. Sept. 21, 1945, No. 24573. [Class 44] In a stud-and-socket fastener in which the socket member is provided with a cross-bar or projection engaging in an inclined groove or slot in the stud on rotation of the latter, the socket member consists of a threaded tubular member and the cross-bar or projection is carried by a threaded collar screwed on to the socket member so that adjustment can be effected to suit different lengths of stud, or, if the cross-bar is resilient, to vary its resiliency. The socket member 20, Fig. 2, comprises a tubular, externally-threaded member 24, having longitudinal slots 26, secured to the plate 10. On the member 24 is threaded. the spring- carrying member 30 comprising a neck 32, internally threaded, and an enlarged tubular part 31 in which is housed the spring 35 comprising a straight central part 36 engaging in helical slots in the stud 12 and outer ends coiled helically within the collar 31 so as to exert spring tension in the parts to be fastened. After insertion of the spring in the collar, the open end 40, Fig. 7, is spun over as shown in Fig. 9 to compress the ends of the spring.
Patent GB-795617-A (GB)
Title: Improved magnetic tape recording and reproducing system and apparatus
Inventor: MEE CHARLES DENIS
IPC: G11B23/00
Filed: 1955-08-26
Abstract: 795,617. Magnetic recording and reproducing heads. MSS. RECORDING CO., Ltd. Aug. 24, 1956 [Aug. 26, 1955], No. 24583/55. Class 40 (2). In a magnetic recording system two transducers carrying the same signal are placed each side of a record carrier, the non-magnetic face of which is pressed against one of the transducers and the magnetic layer is spaced from the other transducer by a distance equal or greater than the normal thickness of the carrier.
Patent GB-1157366-A (GB)
Title: Improvements relating to Analogue to Digital Converters
Inventor: VIERI BRUNO JOHN
IPC: H03M1/00
Filed: 1967-05-26
Abstract: 1,157,366. Analog/digital converters. ELECTRIC & MUSICAL INDUSTRIES Ltd. 24 May, 1968 [26 May, 1967], No. 24608/67. Heading G4H. An analog/digital converter includes a series of cascade connected stages 1, 2 (Fig. 2) each including a linear amplifier having a gain of two which offsets the level of the input signal by a predetermined amount so that the expected range of the input signal is symmetrical about zero, the sign of the amplification changing to give an output signal to the next stage of constant polarity. The output digit from each stage depends on the sign of the amplification, this output being in Gray Code. The input is applied in balanced form across terminals 5, 6 to transistors 7, 8, the emitter resistances 9, 10 of which are chosen so that with unit voltage input no current circulates in the circuit comprising transistors 7, 8, resistances 9, 10, 28, 29 and diodes 25. The input signal to the next stage is taken from conductors 26, 27, with resistances 28, 29, 9, 10 and the emitter resistances of transistors 7, 8 being chosen to give a gain of two. Due to diodes 28 conductor 26 is never-negative with respect to conductor 27. At zero circulating current the sudden change in the collector voltage of transistor 7 relative to that of transistor 8 is transmitted to limiter 3, from which the binary coded output bit for the stage is taken.
Patent GB-243862-A (GB)
Title: Improved means for chocking and starting ships' boats, which are also applicable for raising vehicles
IPC: B63B23/18
Filed: 1924-10-16
Abstract: 243,862. Stockman, J. S. Oct. 16, 1924. Chocks.-A device for giving an initial lift to ships' boats and so taking their weight off the chocks, which may also be applied to raising the wheels of road or rail vehicles clear of the ground or rails, comprises a two-armed lever g, Fig. 3, terminating in a roller a and working about a spindle c which is mounted in journals in a baseplate j. Movement of an operating-lever g through 180‹, raises the roller a to its highest position, the lever g being mounted on a spindle f which carries a spur wheel e gearing with a gear wheel d on the spindle c. In a modification, auxiliary worm gear is provided comprising a hand wheel q, Fig. 4, which either directly or through bevel-gear v operates a worm meshing with a worm wheel s on the same shaft as a spur wheel e in gear with a gear wheel d on the spindle of the two-armed lever b.