baber/WOPTO huggingface dataset:
Patent GB-1022816-A (GB)
Title: Improvements relating to fluid control valve assemblies
Inventor: HIBBERT JOHN
IPC: F15B13/00
Filed: 1964-01-01
Abstract: 1,022,816. Hydraulic or pneumatic apparatus. TAYLAIR CONTROL Ltd. Jan. 20, 1965 [Jan. 1, 1964], No. 23/64. Heading F1P. A control valve assembly, Figs. 2 and 4 (not shown), for controlling the supply and exhaust of hydraulic or pneumatic pressure fluid to a plurality of motors or other devices, comprises a port block 24 having ports 25 for connection to the motors, a valve block 30 containing control valves PP1-PP16 etc., and a lower circuit plate 22 having passages therein Figs. 8 and 9 (not shown), forming the connections between the control valves and the motor ports. The control valves PP1-PP16 are spool valves, some of which are manually operated and some of which are operated by pressure fluid supplied thereto by solenoid operated pilot valves SV1- SV9. The connections between the solenoid valves and the control valves are provided by passages in an upper circuit plate 20. Blanking plates 52, 54 are provided between the port block 24, the lower circuit plate 22, and the valve block 30 in order to separate some of the passages 40, 38 in the lower circuit plate 22 from grooves 44, 46 in the lower face of the valve block 30 and from grooves 36 in the upper face of the port block 24. Fluid is supplied to and returned from the assembly through ports provided in the ends of the port block 24.
Patent AT-A59096-A (AT)
IPC: C14B5/00
Filed: 1996-04-02
Abstract: A method cuts out e.g. leather blanks. The workpiece is spread out on a resting surface for optical acquisition, using a camera. This records the contours and defective locations of the workpiece. Such locations and other characteristics peculiar to it are preferably marked by hand, for acquisition at the same time. The corresponding data are input into a computer for each workpiece. In accordance with the requirements for blanks, in terms of number, shape and quality, a cutting pattern is devised. This is stored and allocated to each respective workpiece.
Patent DK-61682-A (DK)
Inventor: BERKELMANS NICOLAAS MARTINUS
IPC: B41J5/10
Filed: 1982-02-12
Abstract: Word typewriter for displaying written information, in which a group of keys for the vowels is located in the middle of the keyboard and on either side of this, in a mirror image pattern, an identical group of keys for a limited number of consonants, the bottom row of these letter keys being intended for the thumbs, and in which the placing of the keys is chosen in such a way that by simultaneously pressing two keys missing letters are formed, and in which the letter keys can also be used for symbols or figures. For displaying letters on one side and symbols or figures on the other side there is a shift key SK, and all the keys are connected to an electronic coding and processing unit 3, which decodes the signals from the keys and then emits signals representing standard letters, symbols or figures, as a result of which the combination of two simultaneously pressed letter keys, the form or sound of which recalls the pattern of a missing letter, is processed into the standard display of the said letter. <IMAGE>
Patent GB-1195461-A (GB)
Title: Blasting Method and Devices therefor
Inventor: TEICHMANN GORDON ALGER
IPC: F42D1/08
Filed: 1968-01-01
Abstract: 1,195,461. Blasting accessories. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Dec., 1968 [1 Jan., 1968], No. 118/68. Heading F3A. An explosive blasting accessory comprises a column 13 of powdered metal or metalloid free from oxidizing material packed in a container 14 and, surrounded by the column, a charge of explosive 12 having a higher velocity of detonation than ANFO and in sufficient amount to dispense at least part of the powdered metal or metalloid in the after detonation gases of a blasting explosive charge 16 detonated in contact with the accessory in a method of blasting. The container is formed of polyethylene or P.V.C. and the metal or metalloid is present as a dry powder or a liquid suspension comprising aluminium, magnesium, iron, silicon or boron. The suspending liquid may be water thickened with guar gum, ground psyllium seed or cellulose ether. The charge 12 can be detonating fusecord and the charge 16 is ANFO or slurried explosive. In the method of blasting a gelatinous nitroglycerine explosive 11 is used as a primer. Quarry grit is employed as stemming 17.
Patent GB-749798-A (GB)
Title: Light amplifying device
IPC: H01L31/14
Filed: 1954-01-04
Abstract: 749,798. Electroluminescence. STANDARD TELEPHONES & CABLES, Ltd. Jan. 4, 1954 [Jan. 22, 1953], No. 120/54. Class 39 (1). A colour filter is located on the external face of a light amplifying device which'comprises a layer of material whose impedance varies with light intensity superimposed on a layer of electroluminescent material, and the two enclosed between laminar electrodes, one of which is light-transmitting. Laminµ of colour filter elements 17, 18, 19 and 20, 21, 22 are formed on one or both sides of the screen which comprises transparent electrode layers 3, 6, a layer 4 of a material, e.g. cadmium, antimony or lead sulphide whose resistance or dielectric constant varies with the amplitude of the incident radiation, and an electroluminescent layer 5. An opaque layer 7 of insulation separates layers 4, 5, but in Fig. 2 (not shown), the layer 7 and filter elements 20, 21, 22 are omitted and the electrode 6 is made opaque, the light emitted by layer 5 passing out through filter elements 17, 18, 19. When feed-back from the electroluminescent layer to the photo-conductive layer is utilized, the alternating potential is applied in pulses of period equal to the saturation time of the electroluminescent layer. The device may be used to convert an image in short, medium and long wave length ultra-violet into a red, green and blue image. It is also used for amplification in colour television projection systems and in motion picture projection. Where the device receives and transmits from one side only, either the photo-sensitive layer or the electroluminescent layer is transparent according to their position relative to the incident radiation.
Patent GB-536906-A (GB)
Title: Improvements in and relating to apparatus for separating fluids
IPC: C10M175/00
Filed: 1940-01-03
Abstract: 536,906. Centrifugal separators. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 3, 1940, No. 139. Convention date, Jan. 5, 1939. [Class 23] Apparatus for separating gases from liquids, particularly hydrogen gas from lubricating oils, has a rotatable tubular element 11 and a stationary entry conduit 24 extending axially into one end of it; co-operating portions of the element 11 and conduit 14 allow a gas-tight liquid seal to be effected. The element 11 is driven by a motor through gearing 22, 23 and a sleeve 17. The conduit 24 has a flange 25 with a cylindrical part 26 and an inward rim 27; these parts form an annular chamber 32 which is entered by a disc 31 attached to and rotating with the end plate 27 of the tube or drum 11. A ring of holes 33 in the plate 27 permits the mixture from the conduit 24 to enter the drum. The liquid in the annular chamber 28 forms a seal between the inside of the separator and the atmosphere, while the liquid in the annular chamber 32 forms a gastight seal between the drum 11 and the conduit 24. The rotation of the liquid in the drum is assisted by wings 14 and the liquid is compressed at the periphery while the occluded gas is released and carried off through the outlet 45 by a vacuum pump. The liquid is discharged through an annular chamber 41 and openings 48 in the plate 40. This chamber forms a gas-tight liquid seal between the interior and exterior of the drum. Leakage of liquid is prevented by the annular chamber 53 which encloses a throwing disc 52.
Patent GB-943166-A (GB)
Title: Improvements in or relating to folding rolls for use in machines for folding paper and like materials
IPC: B65H45/12
Filed: 1962-01-02
Abstract: 943,166. Rollers. E. J. MIKSIS. Jan. 2, 1962 [March 20, 1961], No. 174/62. Heading F2U. A folding roll comprises a rigid cylindrical solid core having a spray-deposited surface coating of hard material such as molybdenum, stainless steel, high carbon steel or ceramic material heat bonded thereto. The thickness of the coating is from 0.001 inch to 0.003 inch. Smooth surfaced bands 10, 11 are integral with the ends of the roll and have diameters slightly greater than the diameter of the material gripping portion of the roll. A gear 18 is located adjacent the band 11. In a method of applying molybdenum to a knurled roll 1, the roll is first degreased and treated with grit blast to roughen and cleanse it. The roll is then pre-heated to about 200‹ to 300‹ F. and rotated between centres 3, 4 whilst it is sprayed with molybdenum from a spraying device 7 mounted on a traversing carriage 8.
Patent GB-672018-A (GB)
Title: Improvements in or relating to machines for hobbing the teeth of gear wheels
IPC: B23F5/20
Filed: 1950-01-05
Abstract: 672,018. Gear-cutting. BROWN & SONS (HUDDERSFIELD), Ltd., D., and SYKES, A. Jan. 4, 1951 [Jan. 5, 1950], No. 256/50. Class 83 (iii). A gear-hobbing machine comprises a workspindle b horizontally slidable in the upper part of a frame a, a vertically-adjustable carriage carrying a hob e, and a motor and gearing g for rotating the hob and for transmitting motion to a feed-shaft extending horizontally across the lower part of the frame. The machine additionally comprises drive means connecting the feed-shaft to an elongated pinion r meshing with a master-wheel s on the end of the workspindle remote from the work-piece, and a feedscrew t fast on the work-spindle and engaging an axially-fixed nut u rotatable by a return motor y. In a modification, the nut u may be rotated during cutting so that one feed-screw may be used for all rates of feed.
Patent GB-1385441-A (GB)
Title: Protective circuit arrangement
IPC: H02H3/20
Filed: 1973-01-03
Abstract: 1385441 Protective arrangements D L BROWN 3 Jan 1973 [3 Jan 1972] 344/73 Heading H2H To protect a load from surges in an A.C. power supply thereto means are provided to shunt the surge from the load, further means being provided to ensure operation of the shunt means before the surge can reach the load together with other means to disable the shunt means after operation thereof and to reinstate the supply to the load after a predetermined time delay. In the embodiment, load 21 is protected from overload by gas-filled tube 4 arranged in parallel and separated from the load by a delay inductance 3. When the tube fires, relay 5 operates contact 6 which operates relay 7 which controls contacts 8 and 9, to cut off the supply from the load and tube 4. After a short delay, thermal relay 10 operates to release relay 7 and restore current supply to the load and to tube 4.
Patent GB-773560-A (GB)
Title: Variable delivery pump control apparatus
IPC: F04B1/12
Filed: 1955-01-06
Abstract: 773,560. Reciprocating pumps for liquids. NEW YORK AIR BRAKE CO. Jan. 6, 1955 (Feb. 24, 1954], No. 391/55. Class 102(1) To control a variable delivery pump, a space 43 in which a predetermined pressure is to be maintained is connected to the pump, e.g. the plungers 24, the delivery of which is variable between zero and a maximum by a mechanism including, e.g. spill valves 61, opposed by a spring 73 urging it towards maximum delivery with a force varying progressively between the limits, the mechanism being urged towards zero delivery by pressure developed in a motor such as a plunger 85 on the valve rod 64 and operating in a chamber 80 continuously in communication with the delivery space 43, the motor having a leakage characteristic which varies with the position of the plunger 85 in the chamber 80 in inverse relationship to the reaction force of the spring, being greatest at maximum delivery and least at zero, the communication between the motor chamber and the delivery space being restricted as at 94 but sufficient to neutralize maximum leakage from the chamber. The delivery pressure of a swash plate pump comprising a swash plate 56 and the plungers 24 working in cylinders 25 to deliver high pressure fluid past valves 41 through chambers 43 and passages 44 to an outlet 13, is controlled by the spill valves 61 on a spider 62 secured to the spring pressed piston rod 64. The rod slides in a cylindrical bush 86 having an enlarged central bore providing a motor chamber 80 communicating with the high pressure side of the pump through a passage 93 and choke 94. The diameter of the rod 64 is enlarged at 85 to form a differential piston urged by the pressure in the motor chamber to move the rod 64 and spider 62 to the right against the action of a multiple spring unit 73-77. Tapered portions 87, 88 on the piston rod 64 and enlargement 85 shorten the leak paths of the fluid to a low pressure chamber 31 housing the spider 62 and valves 61 and to the pump inlet ports 28 respectively and move out of their bores as the piston rod 64 &c. move to the right to'reduce the leakage and build up pressure in the chamber 80, as the spring resistance increases.
Patent GB-331541-A (GB)
Title: Improvements in and relating to radio receiving systems
IPC: H03G3/22
Filed: 1929-01-04
Abstract: 331,541. Hall, A., and Ferranti, Ltd. Jan. 4, 1929. Thermionic amplifiers.-The volume in a wireless receiver is controlled automatically by arranging that the change in anode current consequent upon an alteration in signal strength varies the grid bias applied to a screened grid valve. The Figure shows a mains-operated receiver including screened grid high - frequency amplifying- valves a, a<1>, the grid bias for which is obtained from the voltage drop in resistances n, 21 through which the current of the detector b passes. Resistance 21 is arranged to carry an additional current energizing the field coil 20 of a moving coil speaker so as to apply an additional constant bias.
Patent GB-156550-A (GB)
Title: Improvements in or relating to a contrivance for coating the material used in producing monolithic structures with a binding matrix
IPC: E01C19/10
Filed: 1921-01-05
Abstract: 156,550. Scherer, E. Berger-. Jan. 24, 1919, [Convention date]. Tar macadam, plant for making.-Relates to apparatus wherein the ballast, gravel, or the like is coated with binding-material in a. mixing and transporting drum which is heated by being enclcsed in the tank in which the binding-material is heated, and consists in employing a rotary, instead of a stationary mixing drum. In the form shown, the material to be coated is fed through a hopper 11 into a drum conveyer 9 rotatably mounted in a tank 1 containing tar or pitch, which is heated by a furnace at 6. The heated binder is drawn from the tank 1 by a pump 15 and sprayed upon the material to be coated from a. nozzle 17. The tank 1 may be rotary to produce agitation of the binding liquid in which case the drum 9 is rigidly mounted within it; or the drum 9 may be provided for this purpose with external radial stirring blades. The drum 9 may have perforations to drain back excess binding material into the tank 1. The material to be coated may be heated prior to its introduction into the hopper 11.
Patent GB-101430-A (GB)
Title: Improvements in or relating to Tables.
Inventor: WHITEHEAD MARGARET FRANCES
IPC: A47B25/00
Filed: 1916-01-13
Abstract: 101,430. Whitehead, M. F. Jan. 13, 1916. Tables combined with receptacles.-A card or iike table is provided with leather, silk, or like flaps b having pockets c to receive game counters &c. When in use, the flaps depend from the edges of the table top a, on to which they are folded when not in use. When the flaps are large, a triangular part of each flap is adapted to be folded back and secured to the other part of the flap on which the pocket is furnished.
Patent GB-235133-A (GB)
IPC: C09D5/00
Filed: 1925-01-08
Abstract: 235,133. Deutsche Forschungs-und Versuchs-Anstalt Ges. June 3, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Paints, fillers.-A filling or priming composition comprises aluminium hydroxide together with varnish or oil paint. In examples aluminium hydroxide is mixed with linseed oil, or a composition consisting of ferric hydroxide, aluminium hydroxide and linseed oil may be used.
Patent GB-339526-A (GB)
Title: Improvements relating to stuffing-boxes
IPC: F16J15/28
Filed: 1930-01-07
Abstract: 339,526. Mahieu, P. A. M. Jan. 8, 1929, [Convention date]. Drawings to Specification. Packing, compound metallic and non-metallic. -Stuffing-box packing comprises flat or slightlyarched metallic elements which are appreciably smaller than the width of the box and are loosely arranged therein so as to be capable of sliding over each other, the remaining space being filled with tallow, grease, or graphite. Other material such as metallic powder may also be added. The packing may be enclosed in a fabric sheath.
Patent GB-552935-A (GB)
Title: Improvements in or relating to light polarizing devices
IPC: G02B5/30
Filed: 1942-01-15
Abstract: 552.935. Protecting polarizing members. INTERNATIONAL POLAROID CORPORATION. Jan. 15, 1942, No. 629. Convention date, Feb. 26, 1941. [Class 97 (i)] One or both sides of a polarizing element are protected by a layer of resilient light-transmitting plastic material adhering thereto and capable of absorbing the effects of impact, and the exposed surface of the layer is covered by a relatively hard abrasive-resisting layer of plastic material separately applied or formed therefrom. As shown, a layer 15 of about 0.00015 inches thickness of polyvinyl alcohol having oriented molecules, and dichroically stained, forms a polarizing layer on the front glass 10 of a car headlamp. It is protected by a layer 18, approximately 0.01 to 0.02 inches thick, of a urea-formaldehyde type resin having a non-oxidizing and substantially non-setting alkyd modifier added to it, and by a surface layer 16, about 0.0015 inches thick, of a similar resin having an oxidizing modifier added to it. Various specific resins and mixtures are set out in the Specification for the layers, and treatment for their formation is described.
Patent GB-988443-A (GB)
Title: Electric circuit breaker
IPC: H01H73/30
Filed: 1962-01-08
Abstract: 988,443. Automatic circuit-breakers. MECHANICAL PRODUCTS Inc. Jan. 8, 1962 [Jan. 18, 1961], No. 690/62. Addition to 902,032. Drawings to Specification. Heading H2B. The circuit-breaker described is that of the parent Specification, but the auxiliary contacts are arranged to close upon or after the opening of the main contacts instead of before the opening of the main contacts. Specification 862,259 also is referred to.
Patent GB-732353-A (GB)
Title: Improvements in and relating to amplifiers
Inventor: FEARNSIDE KENNETH
IPC: G01T1/40
Filed: 1952-01-09
Abstract: 732,353. Measuring radio-activity. INDUSTRIAL MACHINERY CO., Ltd. April 9, 1953. [Jan. 9, 1952], No. 705/52. Class 40 (3). [Also in Group XL (c)] In a device for measuring radio-activity in which a detector feeds an amplifier responsive quantitatively to a varying radiation falling on the detector, two voltages are derived from the output of the amplifier one of which is a function of the variation of the radiation and the other of which is a function of the amplifier gain so that the second output may be used to maintain the gain of the amplifier more nearly constant. The second output may be derived from a standard radiation source. As shown, a scintillation counter comprising an organic crystal such as anthracene or naphthalene or an inorganic crystal such as sodium iodide with a small proportion of thallium iodide or a liquid or plastic suspension containing other materials, and a photo-multiplier tube receives radiation from a Beta source under measurement and from a small Alpha source. The output from the multiplier tube is applied through a cathode follower valve and a screened cable to the input of a four-stage amplifier comprising valves V3 to V6 the amplifier being stabilized by a common cathode resistor for valves V4, V6. The output from valve V6 is applied in parallel to two discriminator stages comprising respectively valves V8, V9 and V10, V11, each pair of valves being cathode coupled and forming a flip-flop circuit which triggers at a certain pulse amplitude. Valves V8, V9 select the Alpha pulses at a level of about 56 volts while valves V10, V11 select the Beta pulses at a level of 6 volts. The Alpha pulses all lie within certain amplitude limits which vary with amplifier gain thus the number of pulses passed by the discriminator as amplifier gain varies is a function of counter sensitivity and amplifier gain. The pulses passed by the Alpha discriminator are converted into a voltage corresponding to the number of pulses by feeding the signal through a double diode circuit V12, V13 which, with condenser C32, inverts the positive pulses from the Alpha discriminator into negative output pulses. The output pulses are applied to a trigger shaping circuit comprising triodes V14, V15 to produce a square output pulse of constant amplitude and duration. These output pulses are fed through a diode pump comprising valves V17, V18 to charge a condenser C36, the voltage across which is directly proportional to the number of pulses passed by the discriminator. This voltage is amplified by cathode coupled valves V19, V20 and fed back to control the gain of valve V3. The output of the Beta discriminator V10, V11 is applied to an anode follower phase inverter V21, the output being fed to cable P13. A multivibrator V22, V23 is incorporated into the apparatus for test purposes a switch S1 being arranged both to supply H.T. to the multivibrator and to connect the output of this multivibrator to the input of valve V3.
Patent GB-613126-A (GB)
Title: Improvements in or relating to printing cylinders
IPC: B41F27/12
Filed: 1946-01-08
Abstract: 613,126. Printing-cylinders. ROBINSON, L. T. A., and ROBINSON, Ltd., L. T. A. Jan. 8, 1946, No. 731. [Class 100(ii)] In a printing cylinder of the type which is split longitudinally into two approximately semicylindrical parts on which is superimposed a metallic design sheet tensioned by the relat i v e angular displacement of the parts the parts 6, 10 are connected together by intercalating bosses 24, 28 receiving one or more pivot pins 32, the axes of which are offset with respect to the cylinder axis. Wedge blocks 48, 50 disposed between the cylinder parts in a shaped recess 38 are operated by a screw threaded rod 56 to tension or release the design sheet. A wedge-shaped recess 70 houses the ends of the design sheet which has beaded ends.
Patent GB-1041821-A (GB)
Title: Improvements in or relating to tables and similar articles
IPC: A47B23/04
Filed: 1963-01-08
Abstract: 1,041,821. Tables. J. W. BURROWS. Feb. 17, 1964 [Jan. 8, 1963; Jan. 12, 1963], Nos. 826/63 and 1497/63. Heading A4H. A table has a stand of tubular metal contoured to provide a pair of legs 1 and a U-shaped base 3, a short arm or extension 4 being attached to each leg to prevent tilting. The table top 6 is supported by members 5 telescoped into the legs 1 and bent to support the top cantilever fashion. Winged screws 8 are used to clamp the top at the desired height, the members 5 being secured to the top 6 by brackets which permit rotation about the members for angular adjustment by clamping members 5 at different heights. In a modification which is not angularly adjustable a single looped member 5 is provided and arms 4 are connected by a rail 9. In another modification the arms 4 are formed by looping legs 1 at their lower ends. A book clamp 10 and fingers 12 may be provided.