baber/WOPTO huggingface dataset:
Patent GB-1138004-A (GB)
Title: Improvements relating to extractive-distillation
IPC: C07C7/08
Filed: 1967-03-28
Abstract: 1,138,004. Extractive distillation. HEINRICH KOPPERS G.m.b.H. 28 March, 1967 [1 April, 1966], No. 14112/67. Heading C5E.   Aromatic hydrocarbons are separated from non-aromatic hydrocarbons by an extractive distillation process characterized by the following features:- (a) The extraction agent, e.g. propylene carbonate, contains as additives compounds similar to, but not the same as, those being extracted (e.g. if the extraction is to produce benzene, toluene and xylene, then the additives may be C 9  aromatics); (b) At least two extractive - distillation columns, shown as 2 and 7 in the figure, are installed one behind the other in series, the downstream column 7 being operated at a lower pressure than the upstream column 2; and (c) The extract is treated in a number of stripping columns in series, each corresponding to a desired product (shown as columns 11, 18 and 24 corresponding to benzene, toluene and xylene), a product containing non-aromatics being drawn off from the tray above the feeding tray of each such stripping column (shown at 13, 20 and 26). The fractions drawn off at 13, 20 and 26 are treated in auxiliary strippers 14, 21 and 27 to remove any aromatics present, and are then combined in line 16 and subjected either to further extractive distillation in column 29 or to common distillation (not shown). The overheads from columns 2, 7 and 29 are combined as non-aromatic product, and the residue from column 29 is combined with that from column 7 and recycled to the stripping columns. The additive to the extraction agent may be already present, e.g. in recycled extraction agent, or may be added thereto, and part of the additive may be added directly to the extractive-distillations columns above the feed-point of the extraction agent, i.e. at 34 and 35 to columns 2 and 7 respectively. Benzene, toluene and xylene of high purity are recovered at 12, 19 and 25.
Patent GB-896057-A (GB)
Title: Educational apparatus or game
IPC: G09B3/12
Filed: 1960-04-22
Abstract: 896,057. Educational appliances. BARRALON, J., and CAPRON, M. April 22, 1960 [April 23, 1959], No. 14147/60. Class 146(2) An educational testing device comprises, a test sheet 7 with two series of information items A, B with a mark on the sheet indicating the correct correspondence between the two items, a pair of perforated plates 2, 3, and a blank card 11 which is inserted between the plates 2, 3 and covers the correct marks on the test sheet 7. To use, a stylus 12 is pressed through what is thought to be the correct aperture and a perforation is made in the blank card 11 which can be processed by data-handling equipment. Several embodiments are described and they are used to test psychological reactions, languages, and aircraft recognition.
Patent GB-376882-A (GB)
Title: Improvements in or relating to oscillating cylinder plunger pumps
IPC: F04B19/02
Filed: 1931-05-13
Abstract: 376,882. Oscillating cylinder-pumps. MORRIS, A. G., 31, St. Mary's Road, Golders Green, London. May 13, 1931, No. 14152. [Class 102 (i).] A pump comprises a cylindrical cylinderblock 21 oscillating in a cylindrical extension 20 of the cover 17 of a casing 11, the end surface of the cylinder-block being formed with ports 25, which co-operate with inlet ports 31 and discharge ports 32 in the cover 17. The cylinder-block may be pressed against the valve face by a thrust-bearing 26 adjustable by a nut 27, or by spring or fluid pressure. The piston 23 is formed with a big-end 38 embracing a roller-bearing 40 on an eccentric portion 39 of the driving shaft 13. The big end may be guided by legs 41 on the cylinder block, or otherwise. The pump 'may comprise a number of parallel cylinder bores in a single cylinder block, or in separate cylinder blocks.
Patent GB-208109-A (GB)
Title: Improvements in induction furnaces for heating rock drill bits and the like
IPC: H05B6/02
Filed: 1923-05-29
Abstract: 208,109. Imray, O. Y., (Central Mining & Investment Corporation, Ltd., Dew, W. Elsdon-, Pryce, L., and Woodworth, L. B.). May 29, 1923. Transformers.-In an induction furnace of the kind in which a part 5 of the secondary circuit is formed with a cell or cells for containing the articles to be heated, this part of the secondary is formed as a loop projecting away from the part of the secondary surrounding the core 3. The furnace is used for heating the ends of rock drills and the like and the limbs of the loop 5 are made of different cross-section so that two different temperatures may be obtained. The temperature of the secondary is regulated by utilizing the expansion thereof to operate a primary current controller 17 as described in Specification 209,707.
Patent GB-1268345-A (GB)
Title: Improvements in or relating to water mixer fittings
Inventor: KING VICTOR HOWARD GEORGE
IPC: F16K11/044
Filed: 1968-03-25
Abstract: 1,268,345. Valves. BARKING BRASSWARE CO. Ltd. 25 March, 1969 [25 March, 1968], No. 14165/68. Heading F2V. [Also in Division A4] A water mixer fitting, for use with a bath and a shower fitting, comprises a housing within which is a diverter valve 14 resiliently biased by a spring supported by a removable insert 16 to a "bath" position, in which water may flow through the fitting to a bath, and manually displaceable by means of a stem 24 to a "shower" position, in which water may flow through to fitting to a shower head, the valve being retained in the "shower" position by the pressure on the valve of water passing through the fitting. The housing has a chamber 10 with an upper wall 11, apertured at 13 providing an outlet for connection to a shower head, and a lower wall 12 apertured at 15, insert 16 being screwed into the housing so that an upper insert end is seated in aperture 15 which communicates via holes 21 in insert 16 with an outlet spout 20. The spring urges a disc valve 14 into the "bath" position in which it closes aperture 13. Apertures 13 and 15 lie in parallel planes the disc 14 remaining parallel to the apertures as it moves between them. On pressing a button 23 secured to the stem 24, which is also secured to valve 14, the valve is moved into the "shower" position in which it is seated on the upper end of insert 16 and closes off chamber 10 from spout 20, and connects chamber 10 via aperture 13 with a second chamber 18 having an outlet 19 which communicates via a pipe 26 with a shower head. Pipe 26 is secured in the housing by a projection 29 on the pipe engaging in a circumferential groove 27 around outlet 19, the tube being seated into the housing by a sealing ring 32 in a second groove 31. Hot and cold water are supplied to chamber 10 from inlet conduits (4), (5) respectively, via chambers (2), Fig. 1 (not shown) containing control taps. The mixer fitting may be secured to a bath by nuts (30), Fig. 1, on conduits (4, 5) which are located in holes in the bath. Each tap comprises a knob 3 controlling a washer (6), Fig. 3 (not shown), the position of which relative to its seating (7) determines the rate of water flow from a chamber (8) to a chamber (9) which is connected to chamber 10.
Patent GB-1269222-A (GB)
Title: Method of and apparatus for measuring inherent electrical noise
Inventor: WILHELM JOHN WALTER
IPC: H04B3/46
Filed: 1969-03-18
Abstract: 1,269,222. Measuring electrical noise signals. NORE ELECTRIC CO. Ltd. March 11, 1970 [March 18, 1969], No. 14194/69. Heading G1U. To measure the inherent electrical noise produced by a device such as a receiver 12-15, a noise signal (16) is intermittently applied to the input of the device so that its output comprises two components alternating in time, the first comprising the combination of the inherent noise produced by the device and the output signal due to the applied noise signal, and the second comprising only the inherent noise. The first component is attenuated (22 or 30) and then compared (28) with the unattenuated second component, and the magnitude of the applied noise signal automatically adjusted until the two balance. The magnitude of the applied noise signal at balance, as indicated on meter 29 connected in the controlling power supply circuit of its source 16, then represents the inherent noise produced by the device under test. Clock pulses from square wave generator 18 control the intermittent generation of noise by source 16, the alternate opening of gates 25, 26 to direct the first and second components of the output signal to the appropriate input of comparator 28, and the switching in of attenuator 22, when used. The provision of two alternative attenuators 22, 30 enables the balance of the two signal paths from the output of the device under test to be checked.
Patent GB-327888-A (GB)
Title: Improved means for use in supporting pipe or other structures in water tube boilers or other tubular apparatus
IPC: F22G7/14
Filed: 1929-05-07
Abstract: 327,888. Superheater Go., Ltd., (Superheater Co.). May 7, 1929. Supporting superheaters.-A superheater 15 is supported in a boiler by rods 17 provided with curved arms 19 to engages the superheater and carried by transverse beams 16 which arc supported by hangers 20 having on one or both sides spaced arcuate recesses 21 adapted to engage a number of the boiler tubes 2 lying in different horizontal planes. The hangers are formed of flat metal plates of such a thickness that they may be inserted in the space between adjacent rows of tubes, and then rotated through 90‹ for engagement therewith, In a modification, the hanger consists of a narrow strip bent to form a series of connected hooks.
Patent GB-253708-A (GB)
Title: Improvements relating to socks and half-hose
IPC: A41B11/00
Filed: 1925-06-02
Abstract: 253,708. Cairns, W. J., Allen, W., and Bunting, W. G. June 2, 1925. Socks.-Socks or half-hose are made with the ankle portion 5 of less width than the leg and foot portions 3, 1, the reduction being effected gradually and symmetrically. Specifications 13903/86, 15254/94, 4972/05, and 2678/15 are referred to.
Patent GB-914899-A (GB)
Title: Improvements relating to electric heating elements for soaking pits or furnaces
IPC: H05B3/66
Filed: 1959-04-27
Abstract: 914,899. Electric heating resistances. STEIN ATKINSON STORDY Ltd. April 27, 1959 [April 26, 1958], No. 14357/59. Class 39 (3). The heating trough of an electric soaking pit or furnace, containing carbonaceous resistance material is subjected to a lengthwise compressive force to maintain its sections, which may be of the kind described in Specifications 837,028 and 837,029, in contact with each other. As shown, a pressure transmission element 7, free to slide in a passage 3 of the furnace wall 1, bears at one end against the trough section 10 and at the other end is resiliently urged by disc springs 18, 19, 20 which are engaged by an adjusting member 23. Gas seals are provided for the passage 3.
Patent GB-965651-A (GB)
Title: Improvements in apparatus for measuring temperatures of iron and steel melts
IPC: G01K1/14
Filed: 1963-04-10
Abstract: 965,651. Transducer casings; thermometers. MAX-PLANCK-INSTITUT FUR EISENFORSCHUNG, and PHOENIX-RHEINROHR A. G. VEREINIGTE HUTTEN-UND ROHRENWERKE. April 10, 1963 [May 30, 1962], No. 14373/63. Headings G1D and G1N. Apparatus for measuring the temperature of iron or steel melts comprises a thermocouple in a ceramic tube, held in the wall of the melt vessel by a ceramic plug of pasty consistency which prevents the melt from escaping through the hole in the wall. As shown (Fig. 2), the lining 6 of the converter vessel has a hollow guide tube 7 of highly burned magnesite, partly covered with a steel tube 8, into which is pushed the ceramic tube 1 by an iron tube 4. The outer surface of tube 1 is covered with a thin layer of a highly ceramic sealant 3 comprising a mixture of refractory material and an aqueous solution of waterglass, phosphoric acid or boric acid, to which small quantities of carbon-containing substances may be added to facilitate removal of the ceramic tube 1. The apparatus is particularly useful in converters operated solely with oxygen. Specification 924,408 is referred to.
Patent GB-913167-A (GB)
Title: Improvements in or relating to gas turbines
Inventor: DETTMER WILHELM
IPC: F01D5/08
Filed: 1959-04-28
Abstract: 913,167. Gas turbines. ENTWICKLUNGSBAU PIRNA VEB. April 28, 1959, No. 14396/59. Class 110 (3). A cooling system for the rotor discs of gas turbines operating at high temperature, having a cover-plate coaxially associated with each rotor disc except that of the first stage to provide a cavity between itself and the rotor for the reception of a coolant has each rotor disc provided with an axially extending hub on which the cover disc, which is of a diameter about 80% of the associated rotor disc, is mounted. The rotor discs 6, 23 have their upstream faces covered by plates 16, 24 to form coolant spaces 17, 25. The plates 16, 24 are press fits on hubs 6a, 23a. The plates have web members at their outer periphery which co-operate with the rotor discs to form slits 18, 26 for the exhaust of the cooling air. Cooling air from the compressor is led to an annular chamber 13 from which it is led through tubes 21, 31 to the spaces 17, 25, respectively. The walls of the tubes 21, 31 are provided with apertures 22, 32 supplying cooling air to the rear faces of the discs 6, 23. Leakage air 43 is used to cool the front face of the rotor disc 5.
Patent GB-1293206-A (GB)
Title: A variable pitch propeller system
Inventor: LIAAEN A M
IPC: B64C11/38
Filed: 1970-03-25
Abstract: 1293206 Variable pitch propellers A M LIAAEN AS 25 March 1970 [28 March 1969] 14426/70 Heading B7V A variable pitch propeller has blades 2, Fig. 2, controlled by a servomotor piston 5 in a cylinder 4 to which pressure fluid is supplied from slide valve-controlled passages 12, 13, Fig. 3, via passages in the propeller shaft 6, an emergency fluid pressure supply being connectable to the servomotor for holding the blades 2 in their forward propulsion setting when the normal fluid pressure supply fails. The emergency supply is connected to inlet 291, after removal of pin 292, and acts to move a piston 26 to the left, so that its hollow piston-rod 27 closes normal supply port 13. Spigot 251 prevents the emergency supply from communicating with servomotor supply conduit 15 until port 13 has been closed. The emergency supply moves servomotor piston 5 to the right to an extreme position in which a chamfered portion of the piston engages a lip of seal 30 to prevent leakage and return movement of the piston, the emergency supply then being cut off and pin 292 replaced. When the normal fluid supply is restored, pin 292 is removed and the normal fluid supply is connected to port 13 to act, via grooves 222, on step 273 of piston-rod 27 to move the piston 26 and piston-rod 27 to the right. An alternative arrangement is described wherein piston 5 moves to the left to move blades 2 into their forward propulsion setting, Figs. 5 to 8 (not shown).
Patent GB-967347-A (GB)
Title: Improvements in or relating to panel assemblies
IPC: E04F10/08
Filed: 1962-04-13
Abstract: 967,347. Roof or wall constructions. HUNTER DOUGLAS INTERNATIONAL (QUEBEC) Ltd. April 13, 1962 [April 14, 1961], No. 14442/62. Heading E1V. Profiled panel elements 7 of aluminium are supported on spaced U- or V-sectioned stringers 1, 2 having an intermediate sliding member 11 allowing the stringers 1, 2 to expand or the roof or wall to be varied in length.
Patent GB-452940-A (GB)
Title: Improvements relating to cycle dynamos
IPC: B62J6/06
Filed: 1935-05-17
Abstract: 452,940. Dynamo supports. RALEIGH CYCLE CO., Ltd., 177, Lenton Boulevard, Lenton, Nottingham, and LAFBERY, A. V., Uplands, Coach Road, Wollaton, Notting- hamshire. May 17, 1935, No. 14457. [Class 35] In a cycle dynamo of the type driven through a flexible shaft d from a pulley e contacting with one of the road wheels f, the pulley being carried by a pivotal support, the dynamo a and a dry battery n are housed together in a box l, on or in which is a switch whereby either the dynamo or the battery can be connected to the lamp circuit. The box l is fixed to the rear fork b and the flexible shaft d is connected to the spindle s of the pulley carried by a sleeve g pivotally mounted in a support h which itself is rotatably mounted by means of a pin i in a bracket f secured to the rear fork. The lower end of the spindle i is fixed to a shouldered washer t and a spring k acts to press the pulley e against the tyre h to hold the washer in engagement with the bracket when the pulley is turned into the inoperative position. The battery n may be in a separate compartment of the box which has a hinged or removable lid held by a spring clip. The pivotal support for the flexible shaft may be carried on the box.
Patent GB-259870-A (GB)
Title: Improvements in or relating to valve springs for internal combustion engines
IPC: F01L1/46
Filed: 1926-06-08
Abstract: 259,870. Marston, Ltd., J., and Greenwood, J. E. June 8, 1926. Valves.-A pair of " mousetrap " springs 2 are arranged one on each side of the valve stem, one end of the springs engaging with the valve washer 14, and the other end being anchored to the valve guide 8. Two or more pairs of springs may be used, and may be spaced symmetrically round the valve. The connection with the valve stem may be made the same as that with the valve guide.
Patent GB-167032-A (GB)
Title: Improved means for suspending bowls, shades and the like for electric and other lights
IPC: F21V17/00
Filed: 1920-05-28
Abstract: 167,032. Richardson, B. May 28, 1920. Globe and shade holders, -A device for connecting a. suspension chain or the like to the rim of a bowl, shade, or the like for electric and other lights consists of two members jointed together, one of which is hooked to engage under the rim and the other is a two-armed lever having one arm adapted to engage the chain or the like whilst the .other arm bears against the interior or exterior of the bowl or the like. In one form, the device consists of a member B, having a wide hook end 2, adapted to engage a rim 1 of a bowl A, and a forked end 3, which is jointed by a cross-pin 4 to a two-armed lever C. One arm 6 of the lever C has a hook end 7 or is made with an eye to engage a chain 8 and the other curved arm 5 bears against the inner surface of the bowl. The bowl is slightly raised for removal. The device can be used for bowls made with an internal rim.
Patent GB-586705-A (GB)
Title: Improvements relating to toys for children
IPC: A63J19/00
Filed: 1945-06-09
Abstract: 586,705. Toys. TOYER, R. June 9, 1945, No. 14639. [Class 132 (iii)] Images or figures B are accommodated below the floor of a toy stage, and are adapted to be raised through holes in the stage floor by depressing levers F and returned to their initial position by the action of springs C.
Patent GB-659527-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: C22C38/16
Filed: 1949-06-01
Abstract: Anisotropic magnets are manufactured by submitting a ferrous alloy or sintered mass to the action of a magnetic field whilst cooling through the Curie point from a solution temperature and then subjecting it to an ageing process, the said ferrous alloy or sintered mass having the following composition:-Ni 10-30 per cent Al 6-11 per cent, Co 12-30 per cent, Cu 0.5-8 per cent, Ta and Nb each 1.5 per cent within the usual manufacturing tolerances, Fe, and the usual impurities the remainder.  The alloy or sintered mass may contain up to 1.0 per cent in total of one or more of the impurities C, P, Cr, Mn and Mo and up to 5.0 per cent in total of one or more of Si, Ag, S, Ti, W, V and Zr.  Specifications 431,660, 539,543, 496,774 and 634,700 are referred to.
Patent GB-264727-A (GB)
Title: Improvements in boxes
IPC: A24F15/08
Filed: 1926-06-11
Abstract: 264,727. Asprey & Co., Ltd., and Hampton, D. B. June 11, 1926. Cabinets with mechanically - interconnected moving parts.-In a box for smokers' requisites &c. comprising a number of compartments adapted to complete or partially form the sides of the box, the compartments 4 are mounted upon shafts 8 having secured thereto pinions 6 which mesh with a pinion 7 upon a shaft 9 provided with an actuating knob, rotation of the compartments about the shafts 8 to open or close the box, shown in the open position, being effected by rotating the shaft 9. A stop 12 engaging the walls of a slot 13 in the pinion 7 is provided to limit the angular movement of the compartments.
Patent GB-603570-A (GB)
Title: Gettering arrangement for electron discharge devices
IPC: H01J7/18
Filed: 1944-08-02
Abstract: 603,570. Electron discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 2, 1944, No. 14802. Convention date, Feb. 6, 1943. [Class 39 (i)] An electron discharge device of the magnetron type having a cylindrical chamber through which axially extends an elongated cathode surrounded by a block of conducting material having a plurality of cylindrical cavities connected to the chamber by radial slots to provide anode segments between the slots has a getter loop situated in a radio-frequency magnetic field extending between two adj acent cavities whereby the getter may be flashed by the excitation of the device. In the construction shown in Figs. 1, 2 and 4, the indirectly heated cathode 10 supported by lead and support wires 11 is axially situated in the cylindrical chamber 13 and is surrounded by the cylindrical anode block 12 of conducting material, e.g. copper, having cylindrical resonant cavities 14 connected by radial slots 15 to the chamber 13 to form a plurality of anode segments. A magnet 21 provides a magnetic field parallel to the cathode. The anode block 12 is provided at its ends with cupshaped depressions 16 and 17 into which the ends of the cathode 10 extend. The ends of the anode block are closed by conducting discs 18 and 19 sealed with a vacuum-tight seal to the block. Cooling fins 20 are secured to the outside of the anode block. The cathode leads and supports 11 are provided with extensions 22 extending through passageways and the tubular members 23 provided with elongated cup-shaped vacuum-tight sealing members 23<1> of insulating material. A coupling loop 24 mounted within one of the resonant cavities 14 is provided with a lead 25 surrounded by a coaxial threaded member 27 and a cupshaped sealing member 26 of insulating material. The coupling loop may be connected to a coaxial line cable the outer conductor of which is secured to a threaded member 27 and the inner conductor to lead 25. A getter loop 30 of U-shaped cross-section containing getter material 31 is connected at its ends 32 and 33, e.g. by welding, near the tip of an anode segment and to the wall of the cup-shaped depression 16. In operation a radio-frequency magnetic field is generated between pairs of adjacent cavities to induce a high radio-frequency current in the getter loop 30 which heats and flashes the getter material 31. After the flashing operation is completed the intensity of the magnetic field may be increased sufficiently to burn up the loop. In the modification shown in Fig. 5 the getter material 36 is contained in a closed ring 35 of U-shaped cross-section which is supported by an arm 37, welded to the wall of the cup-shaped depression 16, so as to be above the end of and coaxial with one of the resonant cavities.
Patent GB-737220-A (GB)
Title: Optical toy
IPC: A63H33/22
Filed: 1953-07-01
Abstract: 737,220. Optical toys. DENT, F. July 29, 1953 [July 1, 1953], No. 14831/53. Class 132(3). An optical toy which causes a distorted image to be produced of an object viewed through it comprises a container C open at two opposite sides and containing two narrow angle optical prisms A, B which are positioned such that the main faces of one prism are at approximately 90 degrees to the main faces of the other prism, and the main faces of both prisms are at approximately 45 degrees to the planes of the open sides of the container C. In use, the toy is held so that the prism A has its thicker edge above the line of sight, and the prism B has its thicker edge below the line of sight.