baber/WOPTO huggingface dataset:
Patent GB-1535236-A (GB)
Title: Colour dot display
IPC: G03C7/00
Filed: 1976-02-25
Abstract: 1535236 Colour display systems SEISCOM DELTA Inc 25 Feb 1976 [28 Feb 1975] 07406/76 Heading H4F A colour display is formed as a matrix of areas (cells), each of which consists of an array of elementary areas (dots), by use of colour codes each of which defines the number and position of those dots within a cell which are to be coloured with a particular colour. The term "colour" includes black and white. The display may consist of a single colour or of several colours, and more than one colour may be applied to any one dot. The overall colour of a cell may represent the optical density of a corresponding region of an image such as a photograph or an X-ray. Alternatively the colour may represent a variable such as a seismic variable obtained in digital form from a store. In one arrangement a photographic transparency is scanned to provide digital signals representing the optical density of areas of the transparency corresponding to respective cells of the display. The signals are stored, e.g. on magnetic tape, and subsequently read out to an encoder which generates, in respect of each cell, a colour code which defines the number and position of the dots to which a particular colour is to be applied. The encoding may alternatively be made manually by reference to a table. The colour code may define several colours, e.g. magenta, yellow, cyan, and black for each cell. In general, for a given number of dots in a cell to be coloured with one colour the pattern of these dots differs from the patterns of the same number of dots to be coloured with each of the other colours, Figs. 5A-5D (not shown). The colour codes pass to a conventional unit to generate the display. For example, the plotter may form a separate transparency for each colour, each transparency bearing an image formed of cells consisting of dots in the pattern defined by the colour codes. The transparencies are superimposed in turn on a photopolymer laminate. Following each superimposition the laminate is exposed to ultraviolet light and the laminate becomes tacky in a pattern corresponding to the pattern of dots in the transparency, toner then being applied to the laminate to adhere to the tacky parts. Reference is also made to silk screens and printing plates, and to various alternative ways of forming the dot image to receive the colours. The scanned photographic transparency may be black and white or colour, the latter entailing the use of filters to separate the component colours. In an alternative arrangement, instead of superimposing transparencies of the form described above, alternate columns of cells of the transparencies are left blank, such that, when the transparencies are superimposed the blank columns of the colour transparencies are intercalated with the blank columns of the black and white transparency.
Patent GB-751641-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C11/117
Filed: 1954-03-16
Abstract: 751,641. Pneumatic tyres. FENTON, E. R. July 7, 1954 [March 16, 1954], No. 7558/54. Class 144 (2). For better grip on wet or icy roads, the tread surface of a pneumatic tyre is formed with a series of recesses 11 which are interconnected circumferentially by air ducts 12 and laterally by air ducts 13 the ends of which terminate at the sides of the tread and are provided with small outlets or bleeder valves. As shown the ducts 12 are formed in the rubber of the tread and the ducts 13 comprise rigid tubes embedded in the tread. The outer ends of the laterally outer tubes 13 are covered by the sides of the tread except for narrow slits 16 therein which open under load. In use the ducts 12 are successively flattened as the tyre rotates and the air trapped in the relevant recesses in the roadcontacting area is expelled through the ducts 13 to create a partial vacuum which is released as the ducts 12 open on leaving the roadcontacting area.
Patent GB-869443-A (GB)
Title: Improvements in or relating to a tetraene
IPC: C07J75/00
Filed: 1960-03-03
Abstract: The invention comprises 1,3,17-triacetoxyestra-1,3,5(10),16-tetraene. The compound may be prepared by heating isopropenylacetate with 1,3-diacetoxyestra-1,3,5(10)-trien-17-one.  One detailed example is given.
Patent GB-1493064-A (GB)
Title: Angle shears for cutting sheet material
IPC: B23D31/02
Filed: 1975-02-24
Abstract: 1493064 Shearing C BEHRENS AG 24 Feb 1975 [5 Sept 1974] 7628/75 Heading B3W A shear for forming L-shaped cuts in sheet material comprises two upper blades movable independently of each other and having cutting edges arranged at an angle to the plane of coplanar cutting edges on lower blades so that the junction between the blades enters the sheet either first or last. As shown, blades 16 (16<SP>1</SP>) are driven by motors 5 (5<SP>1</SP>) via threaded spindles. 12 (12<SP>1</SP>) engaging threaded nuts rigid with blade holders 15, 15<SP>1</SP>. The stroke of a blade being used alone to make 2 or more aligned cuts is shortened to prevent indentation of the sheet at the end of a cut. A sensor 201, such as a potentiometer, driven via a belt 202 by the spindle 12 or (12<SP>1</SP>) or coupled directly to a shaft 7 of the respective motor 5 or (5<SP>1</SP>) determines the stroke length. To vary the cutting clearance, the lower blades 33 (33<SP>1</SP>) are adjustable by means of threaded spindles 42 (42<SP>1</SP>) on which are screwed wedge-shaped nut carriers 47, 47<SP>1</SP> which run in grooves 55, 55<SP>1</SP>, and displace wedges 48, 48<SP>1</SP> mounted on blade carriers 34, 34<SP>1</SP> and engaged in grooves 46, 46<SP>1</SP> at an angle of 45 degrees to the grooves 55, 55<SP>1</SP>. A transmission device 40 ensures equal adjustment of both blades. The spindles 42, 42<SP>1</SP> are rotated by a wheel 35 or by a mechanical drive (53), Fig. 6a (not shown). Sheet is fed to the shear by a table (100), Fig. 1 (not shown), movable in two directions at right angles to each other on rails (104), (105), and having fluid-actuated clamps for the sheet. A conveyer (3) removes the cut pieces from the side of the shear opposite the junction of blades. Holddowns 22 along each blade pair are powered by cylinders 23.
Patent GB-726185-A (GB)
Title: Improvements in and relating to pulse generating circuits
Inventor: MELVILLE WILLIAM SIMM
IPC: H03K3/45
Filed: 1952-03-25
Abstract: 726,185. Changing wave shape. BRITISH THOMSON-HOUSTON CO., Ltd. March 23, 1953 [March 25, 1952], No. 7647/52. Class 38 (2). To a circuit for producing a train of pulses in a substantially resistive load R from an A.C. source G, of the kind forming the subject of Specification 666,575, in which an inductor L and capacitor C, resonant at the supply frequency, are connected in series across the supply, and a saturable inductor and load R are connected in series across capacitor C, the addition is made of a saturable capacitor D connected in parallel with load R. While the current in saturable inductor P is building up, capacitor D is unsaturated, and short-circuits load R, but when it reaches its maximum value, capacitor D saturates and the current is diverted suddenly through load R to give a much sharper pulse. The following conditions must be fulfilled: the unsaturated and the saturated inductance of P must respectively be much greater and much less than the inductance of L, the unsaturated and the saturated capacity of D must respectively be much greater and much less than the capacity of C, P and D must respectively saturate when the voltage across C, and the current in P, are at their maxima, and the value of R must be suitable. To produce a train of unidirectional pulses the inductor P and, if necessary, capacitor C, may be polarized by current and voltage respectively, Fig. 4 (not shown).
Patent GB-313546-A (GB)
Title: An improved button or fastening device
IPC: A44B1/36
Filed: 1928-03-14
Abstract: 313,546. Tonn, O. S. March 14, 1928. Buttons 1 of the kind having one or more recesses or openings to receive a fold 3 of the fabric 4 to which the 'button is to be attached and which is secured therein by a pin or pins 6, each passing through a bore in the button, are provided with a liner 7 inserted in the recess to reinforce the fastening. The pin may be kinked, or other means may be provided to retain and lock the pin in position in the button, and the recesses or openings in the button may be of various shapes and need not extend through to the face of the button.
Patent GB-805271-A (GB)
Title: Device for constricting the thread balloon in textile ring spinning and ring doubling frames
IPC: D01H1/42
Filed: 1956-03-13
Abstract: 805,271. Balloon controlling means. EBENAUER, E., [trading as EBENAUER & CO., H.]. March 13, 1956 [March 31, 1955], No. 7879/56. Class 120(2) A device 'for constricting the thread balloon in textile ring spinning frames comprises a thread balloon constricting hoop 3 carried by at least one support leg 2 fixed to a flat substantially annular disc 1 which can be secured to the ring rail 9 by the ring 7. To prevent rotation of the discs 1 on the ring rail each disc is provided with means, such as projection 1<SP>2</SP> and recess 1<SP>3</SP> for locking it with the adjacent discs. The hoop is preferably adjustable on the legs and a slot 6 which may be straight or slanting and which may be tapered at the bottom may be provided for ease in threading up. The hoop 3 is preferably concave or convex in cross section so as to have a minimum of contact with the thread and the leading edges of the legs 2 may be sharpened to keep fly from accumulating on the traveller.
Patent GB-330623-A (GB)
Title: Improvements in the manufacture and production of olefines
IPC: C07C5/333
Filed: 1929-03-11
Abstract: 330,623. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 11, 1929. Olefines.-In the production of olefines by the thermal decomposition in the gaseous phase of saturated hydrocarbons higher than ethane, if desired in the presence of metal oxide catalysts, between one and nine proportions by volume of methane are added to the starting materials to increase the yield of olefines and suppress the formation of methane. Propane or its homologues or mixtures thereof, or mixtures containing satu. rated hydrocarbons such as mineral oils, brown coal tars, and the product derived therefrom by destructive hydrogenation, distillation, or cracking, may be used as starting materials. Suitable metal oxide catalysts are the oxides of zinc, magnesium, calcium, uranium, or silver. Porous substances such as pumice or artificial zeolite may also be present. The process may be carried out at ordinary, reduced, or increased pressure, and temperature of 600‹ to 700‹ C. are suitable. Extraneous gases such as steam, carbon dioxide, nitrogen, or hydrogen may be present. According to examples, ethylene, propylene, and isobutylene are produced by passing mixtures of propane, isobutane, methane, and nitrogen at 650‹ C. through tubes of quartz or V2A steel containing pumice stone, with which zinc oxide may be mixed. The Provisional Specification is not restricted to gaseous phase reactions, and refers to the use of catalysts in general. Specifications 17822/15 and 303,998 are referred to.
Patent GB-1147082-A (GB)
Title: Improvements relating to carding machines
Inventor: ASHDOWN TRAYTON WILLIAM GEORGE
IPC: D01G15/80
Filed: 1966-02-23
Abstract: 1,147,082. Cleaning carding engines. JOSEPH DAWSON (HOLDINGS) Ltd. and SPENCER & HALSTEAD Ltd. 13 Feb., 1967 [23 Feb., 1966], No. 7997/66. Headings D1F and D1N. In a carding machine a suction hood 5 extends the full width of card below a fancy roller 4, the hood having a narrow slot 7 and being coupled to an extraction system such that the air is withdrawn. The air extraction system may also be connected to a waste collection device elsewhere in the machine e.g. at the rubbers of a tube condenser. The air extraction system may return the waste to the beginning of the carding process or deposit it elsewhere inside or outside the carding room.
Patent GB-574484-A (GB)
Title: Pneumatic conveying apparatus
IPC: B65G53/00
Filed: 1943-05-25
Abstract: 574,484. Pneumatic conveyers. KEMPER, M.F. May 25, 1943, No. 8294. [Class 78 (i)] Relates to apparatus for pneumatically conveying aggregates of loose particles of different sizes and weights and of the kind comprising a throat 10 having at its respective ends an inlet for compressed air and a discharge outlet P, a lateral opening in the throat comnunicating with a pressure vessel H from which he material is fed into the throat. According o the invention, the compressed air is admitted o the throat through a divergent passage 11 containing a member V having a convergent surface which co-operates with the passage to form an annular air way of gradually increasing cross-section in the direction of air flow. The passage 11 may be part-paraboloid, partellipsoid &c. in form. The member V may act as a valve in which case a stem 13 thereon is slidable in the boss 24 of a member K which is bolted to the throat and contains a passage 20 leading from an air supply 22 to the port 6, the stem being pivoted at 32 to a hand-lever 28 pivoted at 29 to the outer end of a link 30, in turn pivoted at 31 to the member K. A spring 26 urges the valve member to closed position.
Patent GB-127877-A (GB)
Title: Improvements in Optical Sighting Devices for Air-craft and the like.
Inventor: TAYLOR ALFRED
IPC: F41G5/16
Filed: 1917-06-11
Abstract: 127,877. Taylor, A., and Gray, P. W. June 11, 1917. S p e c d indicators operating by sighting terrestrial objects.-The speed of aircraft is calculated from observation, through a. telescope on the machine, of the time taken by objects on the earth to pass between adjustable cross-wires in the field of view; the angle of drift is also measured. The cross-wires are separated to a distance corresponding to the height of the machine as read on the altimeter. The distinctive feature of the apparatus comprises the use of a telescope system of which the eyepiece 12, 14 is capable of axial and rotary adjustments only, while the object-glass 45 hangs freely on gimbals 42, 44 mounted in the focal plane of its lenses. The object-glass may be restrained in movement by a gyroscope. The apparatus consists of a main frame 3 secured to a standard 1 and having rubber cushions 5, 7 interposed between it and the standard on its upper and lower sides respectively. A rotary head 20, which supports the eyepiece, has peripheral camsurfaces on its lower outer edge which separate spring pins 25, 26 to displace cross-wires 31, 32 equally from the centre of the field of view. The eyepiece is focused by rotating the milled head 15 and thus moving the lenses axially through the agency of the pin and slot 17. An eye-guard 11 is carried by an overhanging arm 10. The machine is provided with various scales which are used as follows. The angle scale 37 is rotated by the knob 38 until the desired angle of bearing comes cpposite the fixed index 40. The annulus 33, connected to the cross-wire frames, is then rotated until the cross-wires are at right-angles to the line of flight as viewed through the telescope. Incidentally, the reading on the scale 37 opposite the pointer 36 gives the angle of drift of the machine. To determine the speed of the machine, the operation is continued by reading the altimeter and bringing the corresponding height-division on the scale 21 iinto line with the index 35. This operation is performed by rotating the milled head 20, which operates both the scale and the cross-wires. The time taken by an object on the earth to pass between the cross-wires is read by means of a stop-watch mounted in the holder 39.
Patent GB-566188-A (GB)
Title: Improved means for maintaining the temperature of cooked dishes and the like
IPC: A47J39/02
Filed: 1943-05-25
Abstract: 566,188. Food-warmers. HOSKEN, S. T. May 25, 1943, No. 8345. [Class 66] A cover 10 is adapted to be placed over a plate 11 for cooked food which stands on a saucepan 12 or like vessel so that gaps 14 and 15 are left between the plate and the cover, and the plate and the vessel, respectively, in order that steam may circulate round and above the food. The gaps are produced by means of a plurality of clips 13 which are detachably affixed to the plate. The cover, which may be made of metal, earthenware, unglazed pottery or of plastic material, is provided with helical ribs 105 and a protuberance 102 which produce a turbulent circulation of the steam before it leaves through vent 103. The clips which may be made from non-corrodible, enamelled, or plated metal or moulded plastic material, can also be fitted with extension pieces 133 which collectively form a stand for the plate. In a modification, the clips are affixed to the cover, one clip being secured to a hinged portion 106, Fig. 3, to allow for insertion of the plate. Specification 337,484, [Class 66], is referred to.
Patent GB-217669-A (GB)
Title: Improvements in kitchen and similar tables
IPC: A47B33/00
Filed: 1923-03-24
Abstract: 217,669. British &. Foreign Industrials, Ltd., and Nash, J. G. March 24, 1923. Table tops; table adjustments.-A table top 1 is adapted to revolve horizontally about a pivot 1<x> to uncover a box 4 which can be moved into a vertical position about hinges 5 carried in supports on the side frames 2, a slide 12 being moved between guides 13 to hold the box in the vertical position. Beneath the bottom 8 of the table frame under the box is space to stow a chopping board 9, and spaces between the box sides and the frames 2 may contain rolling pins, sleeve boards, or the like. The box may also be adapted to be pulled out as a drawer through the end of the table.
Patent GB-516050-A (GB)
Title: Improvements in machines for decorticating sisal and like fibrous leaves
IPC: D01B1/10
Filed: 1939-03-16
Abstract: 516,050. Decorticating sisal leaves. GOWANS, C. H. K. March 16, 1939, No. 8410. [Class 120 (i)] A machine for decorticating sisal and like fibrous leaves has a rotary frusto-conical drum D with external pins d ; the leaves are gripped by endless chains and are presented to the small end of the drum from which they are moved to the large end. The drum is carried by a shaft A supported in bearings B and its larger end is cylindrical for a short length. It is driven by means of chains and sprocket wheels H, F. E. The endless chains P, P for gripping the leaves are driven by means of wheels J. K and have guides R, R and jockey pulleys s to take up slack chain. The chain wheels q, q at the small end of the drum are journalled in a bracket Q which is adjustably clamped to the standard T so that the angle of the gripping device can be varied. The end of a leaf L is gripped and its free end is presented to the pins d at the small end of the drum. As it is carried along, an increasing length of it is subjected to the action of the pins until it reaches the cylindrical end of the drum. Specification 479,626 is referred to.
Patent GB-916014-A (GB)
Title: A typefount in naskh script for printing
IPC: B41B1/02
Filed: 1959-03-11
Abstract: 916,014. Printing surfaces. KHAN, A. A. March 11, 1959, No. 8411/59. Class 100 (2). In a type fount for printing in the Naskh script, each alphabetical character is cast on an individual type-body so as to occupy only the top 70-80% of the surface, characters with lower dots have the dots in an intermediate zone but the bottom 6-12% of all type faces is blank.
Patent GB-1035383-A (GB)
Title: Improvements in electro-mechanical connections
IPC: H01H1/40
Filed: 1964-02-28
Abstract: 1,035,383. Mounting electric components. W. HOLZER. Feb. 28, 1964 [March 21, 1963], No. 8461/64. Heading H1R. [Also in Division H2] An electrical device, e.g. a transmitter, step switch, relay &c. is mounted on a plate 1 by means of one or more terminals 11, projecting from the device and carrying removable, conductive springs 18 or the like which hold the terminals to the plate and establish electrical connections to the printed circuits 7 and 9 on the plate. The terminals are preferably in the form of flat contacts having enlargements 15 at the ends remote from the device 10. The springs 18 provide a vibrationproof mounting, and comprise helical compression springs, the internal diameter of which is slightly larger than the width of the contacts above the enlargements 15. The contacts are first pushed through the slots in the printed circuit board, and then the springs are forced over the enlargements. If the conductor 7 is to be electrically connected to conductor 9, an additional compression spring 17 is pushed on to a contact 11 before the contact is inserted into the plate.
Patent GB-251414-A (GB)
Title: Improvements in illuminated signs
IPC: G09F13/14
Filed: 1925-03-30
Abstract: 251,414. Marks, E. C. R., (Wayne Tank & Pump Co.). March 30, 1925. Lighting, systems of. - A lamp 5 co-operates with white enamelled reflecting rims 7. 8 to illuminate a double-sided sign 6 and with reflectors 12 to illuminate exterior parts such as the gauges of a gasoline pump.
Patent GB-710648-A (GB)
Title: Improvements in or relating to thermionic cathodes
Inventor: BECK ARNOLD HUGH WILLIAM
IPC: H01J1/14
Filed: 1951-04-12
Abstract: 710,648. Cathode materials and processing. STANDARD TELEPHONES & CABLES, Ltd. April 4, 1952 [April 12, 1951], No. 8487/51. Class 39(1) A thermionic cathode has a nickel support at least the surface of which is at least 99.98 per cent purity, the oxide coating containing a reducing agent e.g. 1 per cent by weight of zirconium hydride. The cathode may be directly or indirectly heated and the support may consist of a core or sleeve made of electrolytic nickel having less than 0.016 per cent impurities or of standard nickel, the surface of which is purified by electrolytic polishing or by firing at 900‹C in wet hydrogen.
Patent GB-1532182-A (GB)
Title: Operations under water
IPC: B23K9/16
Filed: 1977-03-01
Abstract: 1532182 Welding by fusion; blasting; cutting by fusion BATTELLE MEMORIAL INSTITUTE 1 March 1977 [5 March 1976] 08510/77 Headings B3R B3D and B3V In underwater operations such as oxyacetlyene cutting, sand or grit-blasting or, as particularly described, slag, MIG (e.g. with coated wire) or, as shown, TIG are welding using a bell 7 the open end of which confronts the workpiece S and wherein water is expelled from the bell and replaced by gas, the water expulsion is effected by giving the water contained in the bell a vortex movement about the bell axis either by acting directly on said contained water (Fig. 3, not shown)- or, as shown, by rotating the bell.  As shown, the bell is ball-journalled on a torch gas nozzle 9, and is rotated by action of pumped water on blades 12 fast with the bell. The latter may be of transparent plastics material, maybe, at least at its opening, of transparent or opaque flexible material (e.g. polyethylene or rubber) particularly for welding of curved surfaces, or, Fig. 4 (not shown), may be provided at its opening with a ring of separated tufts of hair. A fixed radial baffle 16 intersects helically directed bubbles to provide a good visibility region on one side of the baffle. A backing strip 15 may reduce influx of water from the remote side of the workpiece. In Fig. 3 (not shown) the vortex is created by pumping water into the bell through fixed angled blades.  A tripod fixed to the rotating bell gas nozzle or fixed bell projections may space the bell from the workpiece. In welding lap or corner joints, dummy extension pieces (Figs. 5, 6, not shown) may be provided to complete confrontation of the bell openings. The Specification refers to welding in flat, vertical or overhead positions and with D.C. reversed polarity and argon and helium shielding gases.