baber/WOPTO huggingface dataset:
Patent GB-740014-A (GB)
Title: Manufacture of ethyl chrysanthemate
Inventor: BOON WILLIAM ROBERT
IPC: C07C69/747
Filed: 1953-04-23
Abstract: Ethyl chrysanthemate is prepared by forming ethyl diazo acetate by reacting glycine ethyl ester with nitrous acid in the presence of water and sufficient 2 : 5-dimethyl hexa-2 : 4-diene to dissolve the diazo acetate and then heating a solution of the diazo acetate in at least 3 molecular proportions of 2 : 5-dimethyl hexa-2 : 4-diene at or near the boiling-point of the solution, preferably in the presence of a metallic copper catalyst.  In an example, aqueous solutions of glycine ethyl ester hydrochloride and sodium nitrite are mixed with dimethyl hexadiene and sulphuric acid is added dropwise in three separate portions, with removal of the resulting diazo acetate in solution in the dimethyl hexadiene after addition of each portion of acid, the removed diene being replaced by fresh diene before addition of the next portion of acid.  The diene solution of diazo acetate is then rapidly added to dimethyl hexadiene containing copper powder and hydroquinone and maintained under reflux to yield the chrysanthemate.
Patent GB-127143-A (GB)
Title: Manufacture of Black Sulphur Colours.
IPC: C09B49/12
Filed: 1918-07-09
Abstract: 127,143. Brotherton & Co., Ehrhardt, E. F., and Kay, W. W. July 9, 1918. Sulphuretted dyes are obtained by heating with sulphur and sodium sulphide mixtures of an azo dye from diazotized picramic acid and phenol or a cresol or cresols with free phenol or a cresol or cresols. According to an example, a mixture of picramic acid-azo-m-cresol with meta-paracresol is used. The products dye cotton black shades.
Patent GB-559429-A (GB)
Title: Vacuum-tight high temperature annular connections between a metallic and ceramic body
IPC: H01J5/20
Filed: 1942-08-11
Abstract: 559,429. Uniting metal to ceramics by heat. AKT.-GES. BROWN, BOVERI, & CIE. Aug. 11, 1942, No. 11236. Convention date, Aug. 15, 1941. [Class 36] Metals are united to ceramics by a soft iron ring which has a wall thickness of a few tenths of a millimetre and is sealed to the ceramic body by a glass flux and to the metal body by welding. The ring may be made of electrolytic iron and may be enamelled at the point where the glass flux is to be applied. The ring may be cylindrical or conical or it may be given a spring effect by making it in cross-section the shape of a L, V, U, S, N or W, or by making it pocket- or wave-shaped. The iron can be softened by annealing in an atmosphere of hydrogen at a temperature in the vicinity of its melting point.
Patent GB-273429-A (GB)
Title: Improvements in apparatus for playing games of skill
IPC: A63F9/02
Filed: 1926-04-29
Abstract: 273,429. Padgett, G. C. April 29, 1926. Table games.-An apparatus for use in a game wherein metal discs are thrown so as to bridge sheet metal conductors arranged in the same horizontal surface, comprises a number of sheet metal conductors of the same polarity all of which conductors are completely enclosed by a common sheet metal conductor of opposite polarity the common conductor extending over or around substantially the whole playing area of the hoard. In one arrangement, Fig. 2, a single sheet N of metal of one polarity encloses a number of strips and playing card symbols P of opposite polarity, and the players endeavour to throw pennies D<1> so as to bridge the contacts N, P. In the arrangement shown in Fig. 3, the inner conductor is formed in several insulated sections all of the same polarity and assembled to represent a house. When contact with the enclosing plate is made by means of the pennies the windows of the house are illuminated or a bell is rung. In a modification, the inner sections are arranged to represent a cat, successful throws illuminating the eyes or operating indicating devices at the rear of the board. In a further modification, Fig. 4, pennies thrown so as to connect the contacts P with the enclosing plate cause windows b<1> in goal posts 17 to be illuminated. Specifications 223,640, 230,124 and 256,766 are referred to
Patent GB-741105-A (GB)
Title: A machine for the proving of printing cylinders with flexible plates mounted thereon
IPC: B41F27/00
Filed: 1953-04-24
Abstract: 741,105. Rotary printing machines. TIMSONS, Ltd., and TIMSON, E. A. May 21, 1954 [April 24, 1953], No. 11375/53. Class 100 (2). Inking apparatus; tripping arrangements.- A machine for proving flexible printing plates comprises a frame F having spaced end portions formed to receive and yet permit of the ready removal therefrom of a rotary plate cylinder 9, a rotatable impression cylinder 14 mounted in position between the end frame portions for co-operation with an inserted plate cylinder 9, and an inking unit 22 including a rotary inking roller 23, the inking unit being insertable within the frame so as to enable the roller 23 to cooperate with and ink the plate, but removable to facilitate inking up of the roller. The end frame components 1 are provided with slots 6 adapted to receive a pair of slidable blocks 7 the inner faces of which support the plate cylinder 9 by means of anti-friction bearings. The blocks 7 are secured in position in the slots 6 by screws 10 and nuts 13. The impression cylinder 14 is permanently mounted in anti-friction bearings 15 and is rotated by a handle 17 on a shaft 20 carrying a gear 19 co-operating with a gear 18 on the shaft of the impression cylinder. The inking unit 22 comprises a pair of arms 24 connected by a cross-member 25 and carrying the inking roller 23. The arms 24 are adapted to engage and to rock about a transverse fulcrum rod 28 secured to the frame components 1. The inking unit is provided with handles 30 so that, after removal, the inking roller 23 may be inked up by rolling it over an ink-coated plate. The inking roller is provided with adjustable rolls 31 arranged to run either on bearers 32 on the ends of the plate cylinder or on the cylinder itself, thereby permitting adjustment of the inking roller relatively to the plate P. The inking roller 23 may be locked in position by means of knurled nuts on the rod 28 which grip the lower ends of the arms 24. For raising the inked plate out of contact with the impression cylinder levers 34, pivoted at 35, are provided. The levers 34 are formed with ends 34a adapted to act on, and lift, the slidable blocks 7. The machine is equipped with a graduated rule 36 secured on pivoted arms 37 for assisting in the positioning of the plate P in its correct position.
Patent GB-170869-A (GB)
Title: Improvements in the manufacture of fibrous materials from zoophytes and other sea materials and by-products therefrom
IPC: D01C1/02
Filed: 1920-04-24
Abstract: 170,869. White, P. J. April 24, 1920. Bandages and dressings.-A fibrous absorbent product is obtained from zoophytic or polyzooic material found on the sea shore. The raw material is washed, separated from seaweed, then treated with dilute hydrochloric or other acid or with high-pressure steam, the outer sheath being thus converted into chitin, the inner non-chitinous filament being unchanged. A product is formed which is suitable instead of horsehair as stuffing material. Strong acid dissolves the chitinous sheath. After treatment with dilute acid, the inner filament may be dissolved in strong caustic soda or sodium carbonate yielding a residue which is substantially pure chitin and which may be treated with soap solution or bleached. This product is valuable as a surgical dressing.
Patent GB-785003-A (GB)
Title: Improvements in ion-exchange processes
Inventor: FAWCETT SYDNEY
IPC: B01J41/04
Filed: 1955-04-20
Abstract: An ion-exchange process in which the flow of liquid to a bed of resin, possessing ion-exchange properties and made by a process involving polymerization of a compound containing a double bond, is progressively reduced as the ion-exchange process proceeds. The process is of particular value in the treatment of liquid containing large ions which require a comparatively long time to penetrate into the resins.  Examples of such large cations are cuprammonium ions and examples of such large anions are complex metallic ions such as oxygen-containing complex ions of chromium, molybdenum, tungsten and uranium.  Specifications 594,339 and 626,882 are referred to in the Provisional Specification.ALSO:An ion-exchange process in which the flow of liquid to a bed of resin, possessing ion-exchange properties and made by a process involving polymerization of a compound containing a double bond, is progressively reduced as the ion-exchange process proceeds. The process is of particular value in the treatment of liquids containing large ions which require a comparatively long time to penetrate into the resins.  Examples of such large cations are cuprammonium ions and examples of such large anions are complex metallic ions such as oxygen-containing complex ions of chromium, molybdenum, tungsten and uranium.  Specifications 594,339 [Group III] and 626,882 are referred to in the Provisional Specification.
Patent GB-1429124-A (GB)
Title: Pump
IPC: H02K44/04
Filed: 1974-03-14
Abstract: 1429124 Pumps operating by electromagnetic interaction with fluids COMMISSARIAT A L'ENERGIE ATOMIQUE 14 March 1974 [2 April 1973] 11452/74 Heading H2A A conduction pump, e.g. for liquid sodium, comprises an even number of flow channels 7 formed between first and second tubes 2, 3, tube 3 having corrugations 4 contacting tube 2, and a third tube 8 surrounding the second tube 3, there being permanent magnets 11, 12, disposed between tubes 3 and 8 radially in line with ducts 7, and metal elements 13, 14 between tubes 3 and 8 in the corrugations 4 of tube 3, the elements 13, 14 forming thermoelectric functions which, in use, set up in the liquid in ducts 7, electric currents perpendicular to the flux of the permanent magnets: The tube 8. is made of nickel and the tubes 2 and 3 of stainless steel, there being a further tube 20 of soft iron for completing the magnetic circuit. The elements 13, 14 are made alternately of copper and constantan. The liquid enters and leaves the pump at one end of the pump, the liquid passing along an annulus 23 connected at the other end of the pump to flow ducts 7 and bounded by tube 21 of electrical and heat insulting material.
Patent GB-632860-A (GB)
Title: Improvements in unloader valves for swabs for oil or other wells
IPC: E21B37/10
Filed: 1947-04-29
Abstract: 632,860. Oil well pumps. WALMSLEY, F., and ENGLISH DRILLING EQUIPMENT CO., Ltd. April 29, 1947, No. 11479. [Class 102(i)] A swab for an oil well pump is fitted with an unloader valve that comprises a tubular valve member 1 that is threaded to the upper part of the swab, fitted with the swab valve, and slides in a housing 3 threaded to the lower part of the swab, that carries a rubber packing sleeve expanded by the liquid pressure above the swab. The housing 3 has a valve seating 7 that is engaged by the seating 9 provided on the tubular member 1; the tubular member has flutes 11 and slots 14 in its end face. If the swab is jammed in the well tube, the swab line may be slackened to permit the tubular member to move in the housing and allow liquid above the swab to flow through the flutes 11 and slots 14 to the bottom of the well. Specification 608,149 is referred to.
Patent GB-160470-A (GB)
Title: Improvements in methods of and machines for grinding the ends of rollers
IPC: B24B7/16
Filed: 1918-07-13
Abstract: 160,470. Norma Cie, and Kirner, J. July 13, 1918. Rollers, treating.-Relates to machines for grinding the ends of cylindrical rollers. The rollers, which are ground by a pair of grinding- surfaces both moving in the same direction relatively to the rollers, are passed along a guide so disposed that the pressure of the grinding- surfaces on the rollers is normal, or substantially normal to the guide. The grinding means may consist of a pair of discs, or a pair of cones, on parallel shafts, as shown in Figs. 3, 5 and 7, in which a, bare the discs or cones, c the rollers and d stationary guide or a disc and a cone may be used together, or a pair of cones may be mounted on inclined shafts. The guide may be in the form of a disc rotating inside a stationary circular guide, a part of which is formed by a flexible band.
Patent GB-455287-A (GB)
Title: New or improved sterilizing apparatus
IPC: A61L2/06
Filed: 1935-04-16
Abstract: 455,287. Regulating water levels. CALDWELL, J., 97, Kineton Road, Olton, Warwickshire. April 16, 1935, No. 11679. [Class 123 (i)] [See also Group VI] In a sterilizing-apparatus, water is maintained at a constant level in a tray 11 secured to the bottom of the chamber 1 by an automatic water feed device 23. The innermost passage 26, Fig. 8, communicates with the atmosphere by a tube 29, and its lowest point is normally level with the surface of the water 30. When the water level drops, air is drawn in through the passage 26 which is then in communication with the central passage 27 connected by tubing 24 to the top of a water container 18. Water is thereby allowed to flow down tubes 21, 22 to the outer chamber 27 until its level rises sufficiently to seal the central chamber 26. At the junction of tubes 21, 22, a three-way cock 20 is disposed, also communicating with a mains water supply. By suitably setting the cock, the tank 18 may be filled, the tubes 21, 22 put into communication for the ordinary automatic operation, or when a supply of hot water is desired from the tray 11 through a tap 13, the tube 22 put into communication with the mains supply.
Patent GB-117800-A (GB)
IPC: B22D13/10
Abstract: 117,800. Stokes, F. W. June 22, 1917. Casting-machines; metal-pouring. - Consists in means for introducing the metals into the moulds of centrifugal casting-machines. The pourer c is provided with a lip e' and is mounted on a spindle g which can be rotated by a handwheel g'. The spindle is carried in bearings on a head i which can be turned about a pivot pin on a carriage p under the control of a pin and stops r. The carriage p runs on wheels on rails q on the bed-plate of the machine, or it may slide on ways on the bed-plate. A stop s. limits the distance to which the pourer can enter the mould b. The pourer is supplied from an eccentrically arranged holder f from which the metal flows into the pourer when it is tilted.
Patent GB-1461393-A (GB)
Title: Pulse coded ocmmunication systems
IPC: H04L27/233
Filed: 1973-03-12
Abstract: 1461393 Determining significance of data bits NATIONAL RESEARCH DEVELOPMENT CORP 12 March 1974 [12 March 1973] 11787/73 Heading H4P In an apparatus for determining the significance of data bits in a two state data signal, especially of bit representations in a phase modulated signal in the presence of noise, a generator 16 e.g. a ring counter, provides a set of N pulse trains, a-h, starting one after another throughout an interval of t seconds, the pulses in each train occurring at t second intervals, being the same as the data bit duration. The pulse trains are applied to coincidence gates 8-15, the other input of each gate receiving a pulse m initiated at each transition in the data signal l. The output of each gate is coupled to a respective counter 17-24, each of which delivers a gating pulse at a predetermined count. Thus the counter associated with the pulse train most nearly in phase with the data signal transitions will rapidly run up to the predetermined count (e.g. 15) whereas the others which will only respond to odd, spurious transitions, will not. The gating pulse from the operated counter controls a respective latch 25-32 to hold open a respective gate 33-40. This gate receives one of the pulse trains, a-h, occurring half a bit (t/2) after the pulses applied to the counter controlling the latch. The sampling output from the selected gate 33-40 is sampled to the main logic circuit 41 to determine the appropriate sampling instants for the data signal. The arrangement is for use in analysing data signals derived from a phase comparator 5 in which a required phase shift keyed signal transmitted by a responder 1 in a vehicle in response to an interrogating signal from a generator 3 and radiating loop 2 is compared with the locally generated interrogating signal.
Patent GB-1011895-A (GB)
Title: Improvements in devices for automatically actuating aerosol spray packs
IPC: B65D83/16
Filed: 1963-03-25
Abstract: 1,011,895. Pressurised dispensing containers. H. J. W. RAPHAEL. March 25, 1964 [March 23, 1963], No. 11788/63 and 16996/63. Heading F1R. A pressurised dispenser 8 is mounted in a basket 2 secured to one member of a door and the valve 20 is actuated by a bowed strip 16 mounted on another, relatively moveable member of the door. The height of the valve 20 is adjusted by a screw 12.
Patent GB-987222-A (GB)
Title: Parking meter or the like
Inventor: ENDALL JOHN
IPC: G07F17/24
Filed: 1961-03-30
Abstract: 987,222. Parking meters. BLOCTUBE CONTROLS Ltd. March 21, 1962 [March 30, 1961], No. 11792/61. Heading G4V. A parking meter, similar to that described in Specification 775,509, is arranged to operate with either a coin of one value to purchase one period of hire or a coin of higher value and smaller size to purchase a correspondingly longer period of time so that the extent of the movement of the parts of the meter mechanism, terminating in the movement of a pointer, is governed by the size of the coin in each case and comprises a first member 2 which is fixed in relation to the pointer 1 and is adapted to be moved by a second separate member 9 connected directly to an element of the drive mechanism, the first and second members having thereon pairs of co-operating elements arranged respectively to engage on the insertion of the coins of the respective sizes. The member 2 to which the pointer is fixed is a pivoted segmented plate 2 having ratchet teeth 6 and the member 9 is an arm which is pivoted on the same axis 4 as the plate 2 for oscillation through about 70 degrees for each coin insertion and coins a pawl 7 for coaction with the ratchet teeth 6. A stop lever 31 is pivoted on the shaft 4 with its free end engaging a pawl carrier 8 to hold the pawl 7 out of engagement with the teeth 6 and with a spring 32 pressing it against a stop 33 on the arm 9. A lug 34 on the lever 31 engages a pin 35 on the plate 2 when the arm 9 moves behind the plate and the lever 31 is pushed back so that the pawl 7 can engage the teeth 6. A curved guide arm 20 on a lever 22 is engageable with a pin 21 on the pawl carrier 8 and can also hold the pawl 7 out of engagement with the teeth 6. An inserted coin falls to a stop 28 and a small coin positions a feeler 27 connected by a link 26 to the lever 22 so that the lever is turned about its pivot 40 but not sufficiently to move the guide arm 20 to a position in which it prevents the pawl 7 from engaging the teeth 6. As the arm 9 is rotated downwards by a link 15, the lug 34 engages the pin 35 and the stop lever 31 is pushed back to allow the pawl 7 to engage the teeth 6 at a point where the pointer 1 is advanced to indicate, say, one hour. For the larger coin of smaller value, the lever 22 is pivoted further so that the guide arm 20 is moved outwardly to a degree that prevents the pawl engaging with the teeth and the drive from the arm 9 to the plate 2 is through engagement of the stop 33 with a pin 35x on the plate, this advancing the pointer through only, say, half an hour. A number of holes 45 are provided for the pins 35 and 35x. Coins can be added accumulatively, although the engagement of the lug 34 and pin 35 (smaller coin) or of the stop 33 and pin 35x (large coin) cannot take place after insertion of a first coin because the pin 31 will ride off the lower end of the guide arm 20 and be able to engage a tooth 6 of the plate 2.
Patent GB-159433-A (GB)
Title: Improvements in door and gate latches
IPC: E05C19/00
Filed: 1920-04-28
Abstract: 159,433. Shaw, A. G., and Haynes, F. W. April 28, 1920. Catches, automatic.- In a fastening fur swinging doors or gates, a casing 7, with an open bottom, is attached to the gate-post by screws 8, the lower screws supporting rings 9, which can be swung inwardly and moved upwardly, but are prevented from moving outwardly by abutting against the side walls of the casing 7. To the free end of the gate is secured a lug 5, which, as the gate is closed, forces one of the. rings 8 upwards, the, latter dropping behind the lug as soon as it has passed, to secure the gate in the closed position. To open the gate, one of the rings 8 must be raised by hand. An upper lug 6, which may be in the form of a headed-pin carrying a roller, is secured to the end of the gate, and is adapted to engage with the top edge of the casing 7 to prevent any droop of the gate in the closed position. For a door or gate opening in one direction only, one ring only is employed. When applied to a sliding door or gate, the ring 9 is secured in the plane of the door or gate and the tongue member 5 is provided with an upwardly projecting portion, so that on closing the door this projecting portion raises the ring, which then falls behind it on to the shank or main portion of the tongue to secure the door.
Patent GB-316117-A (GB)
Title: Improvements in or relating to petrol tanks for aeroplanes, motor cars and such like
IPC: B64D37/06
Filed: 1928-04-23
Abstract: 316,117. Caddy, W. T., and Doig, D. April 23, 1928. Flexible pipes. - A flexible pipe, tank, &c. is made from sheet material comprising inner and outer layers 3 of textile material, and intermediate layers composed of a number of strips 1, each consisting of flattened wire coils served with rubber, the whole being vulcanized together. Each strip may be enclosed by textile braiding 2, the metal coils may consist of intermeshed coils of opposite hand, and rubber sheets may be disposed between the textile layers 3 and the layers of strips.
Patent GB-976052-A (GB)
Title: Straw walker assembly for combine harvesters
IPC: A01F12/30
Filed: 1963-03-26
Abstract: 976,052. Combine-harvesters. R. CLAAS. March 26, 1963 [Jan. 9, 1963], No. 11908/63. Heading A1F. In a combine-harvester a straw-walker assembly is provided which comprises one or more straw walkers 23-26, each having openings in its upper surface through which grain can pass and in which means are provided for deflecting inwardly grain which passes through the openings at points adjacent to the sides of the assembly. In Fig. 2, this is accomplished by angling, towards the centre of the assembly, the outlets 29-32 of the collecting trays mounted beneath the straw-walkers and integral therewith. In modifications (not illustrated) baffles may be employed for the same purpose.