baber/WOPTO huggingface dataset:
Patent GB-502005-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01J43/22
Filed: 1938-07-13
Abstract: 502,005. Electron-multipliers. ELECTRICAL RESEARCH PRODUCTS, Inc. July 13, 1938, No. 20746. Convention date, Aug. 31, 1937. [Class 39 (i)] In eleotron-multipliers the secondary electron emitting cathodes 15<1>, 15<2>, 15<3> are disposed in line between the cathode 11 and the collecting electrode 13 and are made of foil 18 held in frames 16 and coated with secondary electron emitting material on the side fencing the collector electrode 13 and means are provided encompassing the secondary electron emitting electrodes for concentrating the electron stream. The foil preferably consists of a precious metal such as gold or silver and the coating consists of caesium oxide, silver and free caesium. The electrodes 15,<1> 15<2>, 15<3> and a screen 21 are supported by leads passing through the side of the envelope, while the leads to the cathode and collecting electrode pass through the ends thereof. A circuit comprising a shunt potentiometer 22 and batteries 23, 24 impart suitable voltages to the electrodes. The cathode may be photo-electric and activated by a beam of light or it may be thermionic, directly or indirectly heated. The foil electrodes may also be sensitized on the cathode side. Dispersion of the electron stream is prevented in the form shown by a long coil 27. Alternatively, electrostatic concentration may be provided by mounting the electrodes 15 midway in tubular sleeves which are placed end to end in the envelope.
Patent GB-833212-A (GB)
Title: Improvements in or relating to the colouring of artificial cellular products
IPC: C08J9/00
Filed: 1955-07-18
Abstract: In a method of making coloured artificial cellular products, especially sponges, having a basis of regenerated cellulose, coloured fibres are incorporated in cellulose xanthate during the course of manufacture of the products.  Crystalline sodium sulphate is preferably incorporated in the cellulose xanthate as pore-forming material.  The coloured fibres may be of cotton, flax, hemp or jute or mixtures thereof or artificial fibres, such as "Fibro" Staple ("Fibro" is a Registered Trade Mark).ALSO:In a method of making coloured artificial cellular products, especially sponges, having a basis of regenerated cellulose, coloured fibres are incorporated in cellulose xanthate during the course of manufacture of the products. Crystalline sodium sulphate is preferably incorporated in the cellulose xanthate as preforming material.  The coloured fibres may be of cotton, flax, hemp or jute or mixtures thereof or artificial fibres, such as Fibro Staple ("Fibro" is a Registered Trade Mark).
Patent GB-485899-A (GB)
Title: Improvements in and relating to toy fire-arms
IPC: F41B3/00
Filed: 1937-07-27
Abstract: 485,899. Toy guns. THORSELL, E. July 27, 1937, No. 20804. Convention date, July 27, 1936. [Class 132 (iii)] A toy gun for projecting rubber bands comprises a bar 5 having an adjustable hole- and-bolt connection with a slotted part 2 of the butt 1. Bars 5 of different length may be used. The trigger 4 is controlled by the spring 14 and has a catch 11 engaging a projection on the pivoted member 9 having a tongue 12 between which and the fore end of the bar 5 the rubber band 18 is stretched. Sights 16, 17 are provided. In the construction shown in Fig. 4 the gun is adjustably pivoted in a slot in the bed 28 by the bolt 21, a steel wire strap 22 being provided for increased stability. The trigger 4 is actuated through a chain 23 and ring 24. The gun may be made from metal, bent wire, wood or horn.
Patent GB-1453998-A (GB)
Title: Polyester magnetic tape
IPC: B32B7/022
Filed: 1974-05-10
Abstract: 1453998 Polyester laminates TEIJIN Ltd 10 May 1974 [11 May 1973 14 June 1973 5 July 1973] 20835/74 Heading B5B [Also in Division B2] A laminated polyester magnetic tape with reduced dropout comprises a two or three film stretch-oriented polyester laminate base formed by coextrusion and comprising a polyester film A forming one external layer of the laminate film and having included therein finely divided filler to reduce its coefficient of static friction to not more than 0À80 and a polyester film B forming the other external layer and having a coefficient of static friction at least 0À05 greater than that of film A and a smoother surface, and optionally a third polyester layer C interposed between layers A and B, a magnetic layer being coated on film B. The polyester of film A or B, or the optional third intermediate film, may be the same or different and comprise polyethylene terephthalate, polyethylene 2,6 - naphthalate, polytetramethylene terephthalate, polytetramethylene 2,6 - naphthalate or polycarbonate, or copolyester of 85 mol per cent of the above with 15% of other ester forming monomer, or a mixture. There may be used a polymer blend of 90 wt. per cent homopolyester or copolyester as above with 10 wt. per cent of polycaprolactam, polyhexamethylene adipate, polyethylene, polypropylene, polybutene - 1, or polystyrene. Film A may include 0À01 to 40% of filler such as terephthalic acid salts of Ca, Ba, Zn or Mn, MgO, ZnO, MgCO 3 , CaCO 3 , CaSO 4 , BaSO 4 , Al 2 O 3 , SiO 2 , TiO 2 , carbon black, graphite or pigments (e.g. kaolin), the filler being of spherical or square particles 0À1 to 10Á in diameter. When carbon black or graphite is used a conductive (antistatic) layer (surface resistivity <10<SP>12</SP> ohms) is formed. The stretching of the laminated base may be biaxial or longitudinal and the stretch base may be heat set, the heat setting causing the film to curl when polymers of different molecular weights are used in films A and B. The above mentioned and other physical properties of the films (e.g. stiffness, haze, intrinsic viscosity, dropout rates, stretching ability) are quantified in detail and the base may be transparent.
Patent GB-1427319-A (GB)
Title: Communication systems
IPC: H04L12/801
Filed: 1972-05-04
Abstract: 1427319 Digital data transmission systems PLESSEY CO Ltd 1 May 1973 [4 May 1972] 20866/72 Heading H4P A "store and forward" communication system in which data is transmitted in the form of messages between switching nodes which are interconnected by links and wherein the transmission of a message between nodes not directly connected is via intermediate nodes at which the message is temporarily stored is characterized in that the nodes are arranged to feed messages into the system at intervals determined by the transmission time of previous messages through the system. The system is arranged to receive a predetermined number of messages initially and thereafter to feed subsequent messages into the system at the predetermined intervals. The messages include data indicative of the delays incurred at intermediate nodes so that a destination node receives data from which the total transmission time may be determined.
Patent GB-484188-A (GB)
Title: Improvements in or relating to typewriters and like recording machines
IPC: B41J27/00
Filed: 1936-09-28
Abstract: 484,188. Typewriters. SHERMAN, J. Q., and STANDARD REGISTER CO. Sept. 28, 1936, Nos. 20913 /36 and 24418/37. [Class 100 (iv)] [Also in Group XI] Heating arrangements for platen rollers.- In a typewriter or like recording machine of the kind in which writing is effected bv applying pressure to the writing material against the surface of a rotatable platen, and copies are simultaneously taken with the aid of transfer material, an electrical heating element is placed within the platen, means for making electrical connections with the element are arranged so as to permit rotation of the platen, and the heating element is adapted to raise the temperature of the transfer material at the writing position above normal atmospheric temperatures, so that the machine is adapted for use in producing manifold copies by means of transfer material, such as that described in Specification 484,278, which is operative only at the higher temperatures. The rotatable platen 10, Fig. 3 (20913/36), is provided with feed pins of the kind described in Specification 408,125 and with heating elements 18 connected to slip rings 34, 32 which receive current through contacts 38, 40. A thermostat control 42 is connected in the circuit and comprises a curved bimetallic strip 50, Fig. 5 (20913 /36), which moves with varying temperature against the action of a spring 52, which can be adjusted by a screw 60. To preheat the transfer material two casings between which the sheets have to pass are arranged behind the platen and contain heater elements and thermostat controls arranged in series or parallel with the platen and each other. A variable rheostat in series in the circuit permits a rough setting of the apparatus to attain a desired temperature without too frequent actuations of the thermostats. A time control switch in the heating circuit has a push rod which is struck by a bumper mounted on the margin stop during transverse movements of the carriage, so that as long as the typewriter is in use the switch is kept wound up, but, at a given period after use has ceased, the switch opens. In a modification the platen, provided as before with feed pins, is of the sectional construction described in Specification 471,531, and comprises a number of segmental sections, each formed with a metal core and rubber cover, and grooved at the ends to engage with locking flanges 8, Fig. 3 (24418/37), arranged on axially adjustable pin-wheel heads 4. Mounted in the platen inside a casing 24 are a series of heater elements 23 or a single tubular element, connected singly or together to a source of current by means of jack plugs fitting into holes in conductor rings 15, 16. The rings 15, 16 are connected to slip rings 10, 11 with which contact is made by spring pins adjustably mounted on the carriage. When the length of the platen is changed by inserting different platen segments heater elements of corresponding length may be inserted. U.S.A. Specification 1,850,421 is referred to.
Patent GB-999142-A (GB)
Title: Improvements in or relating to looms
IPC: D03D43/00
Filed: 1962-05-30
Abstract: 999,142. Change-box motion for looms. RUTI MACHINERY WORKS Ltd. May 30, 1962 [June 1, 1961], No. 20922/62. Heading D1E, A four cell drop box is shifted in the usual way by two cranks 23, 24 operating a floating lever 17 coupled to the box by a link 16, the cranks being rotated from one dead-centre position to the other by sliding mutilated pinions 28, 30 into mesh with continuously-rotating mutilated gears 34, 35 under the carbol of the dobby. In order that shifting of the drop box can occur later than shedding (although the dobby gives indications for both at the same time), indicating members 46, 47 are interposed between the connection 54 from the dobby and the mechanism for shifting the mutilated pinions, to maintain the effect of the instruction from the dobby until the change box motion has responded to it. Each mutilated pinion is moved along its shaft by a three-armed lever 45 or 57, which can be rocked by a pair of floating levers 65, 66 carried by a shaft 42; the shaft is oscillated in a vertical plane by a cam 39, but the levers 65, 66 have no effect unless one of the indicators 46, 47 obstructs upward movement of the tail 40a or 44a of one of the levers; as shown, the indicating member 46 lies over the tail 40a, to provide a fulcrum for the floating lever 65, so that the raising of the shaft 42 has lifted its end 40 and rocked the three-armed lever 45 clockwise. By making the indicating members 46, 47 sector-shaped, they can still serve as fulcrums even though the dobby has started moving them to their next setting. In other embodiments, the indicating members are not sectors, but have lost-motion connections with the dobby to delay their movement to fresh settings.
Patent GB-1037418-A (GB)
Title: Hydraulic transmission systems
Inventor: IFIELD RICHARD JOSEPH
IPC: B60K17/10
Filed: 1962-05-31
Abstract: 1,037,418. Hydrostatic transmissions. JOSEPH LUCAS (INDUSTRIES) Ltd. May 16, 1963 [May 31, 1962], No. 20982/62. Headings F2C and F2D. A hydrostatic transmission for a vehicle comprises a pump 7 supplying variable stroke swashplate motors 5, 6 driving wheels of the vehicle, means being provided for decreasing the stroke of a motor in the event of the associated wheel spinning. The means comprises a body 10 having a cavity divided into chambers 11, 12, 13 by diaphragms 14, 15, the diaphragm 14 being clamped between a cup 17 and a cross-member 18 which are fast with a valve spool 19, and the diaphragm 15 being secured to a flange 22 of a valve spool 21. A plate 16 is fast with the body 10 and a spring 24 biases the cup 17 and the flange 22 against the plate 16. Liquid is returned to the pump 7 from the motors through restrictions 8, 9, the chamber 12 being connected to the return line down-stream of the restrictions and chambers 11, 13 being connected to the restrictions 8, 9. A pressure source 25 conveniently derived from the pump 7 supplies high pressure to galleries 26, 27 and low pressure to galleries 28, 29 in the body 10. A bore 30 in the valve 21 ensures that high pressure acts on both ends of the spools of both valves 19, 21. Servo mechanisms 31, 32 are provided for adjusting the strokes of motors 5, 6. In normal operation the valves 19, 21 are biased to the positions shown by the spring 24 and the servomotors 31, 32 are connected to the low pressure source to give maximum strokes to the motors. If, for example, the wheel driven by motor 5 starts to spin, the pressure in the chamber 11 drops and the pressure in chamber 12 moves the diaphragm 14 and spool 19 against the pressure of spring 24 to subject the servomotor 31 to the high pressure from gallery 26 to thereby decrease the stroke of the motor 5 until the pressures downstream of the restrictions 8, 9 are equalized. If motor 6 races, the spool of the valve 21 is moved.
Patent GB-614378-A (GB)
Title: Improvements in apparatus for forming cotton or like absorbent pads
IPC: A61F13/20
Filed: 1946-07-13
Abstract: 614,378. Wadding. McLAUGHLIN, J. R. July 13, 1946, No. 21019. Drawings to Specification. [Class 142(iv)] [Also in Group VI] Apparatus for compressing absorbent pads includes a chamber in which a pad is puckered lengthwise by a plunger, compressed sideways to cylindical shape by a die moving towards a fixed die, and ejected through an exit which is parallel to but out of line with the entrance. An enlarged head is then formed on the pad by another die.
Patent GB-966475-A (GB)
Title: Alkylation process
Inventor: GOLDSBY ARTHUR REYMOND
IPC: C07C2/62
Filed: 1963-05-27
Abstract: In the alkylation of isoparaffin with an olefin or its equivalent in the presence of a liquid catalyst the reactor effluent is flashed to evaporate some of the hydrocarbon and cool the resulting vapour and remaining liquid, the latter is separated at a pressure at least that of the reaction into hydrocarbon and catalyst phases and at least one is used as a coolant in the reaction.  Preferably the reaction is effected at 55-100 DEG  F., the effluent is cooled by flashing to 15-55 DEG  F. and the catalyst is further cooled by direct contact with evaporating isoparaffin to 15-35 DEG  F. before recycle.  The separated hydrocarbon is also further cooled by further flashing and used as indirect coolant in the reaction zone before separating into isoparaffin for recycle and alkylate product.  Isobutane or isopentane may be alkylated with propylene, butene or alkyl sulphate or halide using as catalyst sulphuric acid, hydrofluoric acid or an aluminium chloride-hydrocarbon complex.
Patent GB-734248-A (GB)
Title: Prism field glass
IPC: G02B13/00
Filed: 1953-07-30
Abstract: 734,248. Field glasses; objectives. ZEISSSTIFTUNG, C., [trading as ZEISS, C., [Firm of]]. July 30, 1953 [Aug. 9, 1952], No. 21135/53. Class 97 (1). In a prism field glass each objective consists of a collective front component separated from a dispersive rear component by an axial air-space between 3 and 10 per cent of the focal length of the objective, whereby the overall axial length of the objective is reduced. Numerical data are given for one example of the objective shown.
Patent GB-749703-A (GB)
Title: Improvements in or relating to the reforming of petroleum distillates
IPC: C10G35/085
Filed: 1953-07-30
Abstract: A process for the reforming of gasoline and naphtha fractions by reaction at superatmospheric hydrogen partial pressure over a fixed bed of a platinum-on-alumina type catalyst comprises adding with the fraction charged a halogen or a halogen compound capable of releasing free halogen or hydrohalide under the conditions of the reaction in an amount of not more than 0.05 per cent by weight of such fraction. Preferably the halogen or halogen compound is added in an amount of between about 0.002-0.004 per cent by weight of the hydrocarbons charged but as little as 10 parts per million may be used.  The halogen may be free chlorine or iodine or may be added in the form of hydrogen chloride, hydrogen bromide or alkyl halides such as t-butyl chloride, n-butyl iodide, chloroform or carbon tetrachloride.  The catalyst used comprises platinum or palladium supported on alumina and may contain traces of halide.  The reaction is preferably effected under a hydrogen partial pressure above 100 pounds per square inch gauge at a temperature of from 850 DEG  to 1050 DEG  F.
Patent GB-1049483-A (GB)
Title: Apparatus for winding thread
Inventor: MELDRUM JOHN IRVING
IPC: B65H54/44
Filed: 1962-06-01
Abstract: 1,049,483. Torque amplifiers. COURTAULDS Ltd. Aug. 29, 1963 [June 1, 1962], No. 21158/62. Heading F2X. [Also in Division D1] A torque multiplier used in transmitting power to a cam-operated thread traverse guide (see Division D1) comprises a driven drum 8 about which is wound a belt 14 the ends thereof being attached to input and output arms 12, 15 respectively. The input arm is rotated at the desired speed at low torque and power is transmitted to the belt 14 which slips on the drum 8, and through the belt to the arm 15. The arm 15 thus rotates at the same speed as the arm 12 but at increased torque.
Patent GB-849601-A (GB)
Title: Improvements relating to conveyor belting
IPC: B29D29/06
Filed: 1958-07-02
Abstract: A corrugated border strip made according to the method of the parent Specification is bonded to a length of conveyer belting by applying layers of fabric to the matching surfaces of the strip and belting respectively before these are vulcanised, and then, after corrugating and vulcanising the border strip as in the parent Specification and also vulcanising the belting, these members are adhesively bonded together at their fabric layers. Alternatively the belting may be prepared by exposure of its fabric which is effected by stripping portions of the rubber cover from the vulcanised belting, or by blanking off a suitable width of the belting prior to vulcanisation by a strip of paper or steel or other suitable means so as to leave clear a layer of the belting fabric.  In a similar way flights or chevrons may be attached to the belting.
Patent GB-184372-A (GB)
Title: Power transmission appliances for motor vehicles
Filed: 1921-08-10
Abstract: 184,372. Golby, F. W., (United States Pulley Manufacturing Co.). Aug. 10, 1921. Driving external machines.-A pulley 12 is mounted loosely on a transverse shalt 4 and may be clutched thereto when it is desired to diive external machinery. The shaft 4 rotates in bearings in a support 5 having a boss 11 on which the pulley rotates and slides until clutch teeth 14 on the pulley engage corresponding teeth on a part 13 fixed to the shaft. The movement of the pulley is effected by a handle 21, arms 23 and links 24, and the handle is held in its set positions by a spring pin 29.
Patent GB-460371-A (GB)
Title: Improvements relating to the attachment of iron parts to non-ferrous metal or other bodies
IPC: B21D51/40
Filed: 1935-07-26
Abstract: 460,371. Making vehicle-lamp bodies &c. LUCAS, Ltd., J., MILLER, J. L., and ROBERTS, S. July 26, 1935, No. 21257. [Classes 83 (ii) and 83 (iv)] Welding.-In connecting a body d of non-ferrous metal such as brass or a non- metallic body such as of synthetic resin, vulcanized rubber, asbestos or wood, e.g., a vehicle lamp body, to a pair of iron or steel parts a, e abutting against opposite sides of the body, the part a has an annular shoulder b and an extension c passing through an aperture in the body, and the part e is in the form of a collar mounted on the part c, projections f on the collar and/or on the shoulder passing through apertures in the body and being united to the other part by electric welding.
Patent GB-1053210-A (GB)
IPC: H01H35/24
Filed: 1963-10-23
Abstract: 1,053,210. Protective arrangements. GENERAL ELECTRIC CO. Oct. 23, 1963 [Oct. 26, 1962], No. 21333/66. Divided out of 1,044,187. Heading H2K. [Also in Division H1] A liquid immersed capacitor &c. is arranged to be disconnected from a terminal 14a upon the pressure in a containing housing 2 becoming excessive. The terminal 14a is normally connected to another terminal 14, connected by a lead 4 to the capacitor, by a tinned copper strip 26. Upon bulging of a cover 8 of the housing 2, the strip 26 is fractured at a weakened portion 27 (Fig. 2, not shown) and a torsion spring 22 then separates the free ends of the strip 26 to prevent re-engagement. In an alternative form strip 26 may be replaced by a thin copper wire whose ends, when broken, are burned away by the arc created by the inductive voltage produced by the ballast circuit at interruption, the capacitor being employed in a fluorescent lamp circuit.
Patent GB-516254-A (GB)
Title: Improvements in and relating to electrical devices for determining the angle of torsion in rotary machine parts
IPC: G01L3/10
Filed: 1938-07-19
Abstract: 516,254. Electrically testing torsion in rotary parts. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Ju1y 19, 1938, No. 21427. Convention date, July 22, 1937. [Class 37] [Also in Group XXXVIII] The torsion in a rotary machine part such as a shaft is determined by providing a variable condenser one electrode of which is driven by the part to be tested, at each of two points between which the torsion is to be determined and indicating, e.g., on a cathode ray oscillograph the relative angular relationship of the two rotary condenser electrodes. The apparatus may also be used to indicate the presence of torsional vibrations. As shown, fixed electrodes 13, 14 co-operate with semi-circular rotary electrodes 11, 12, Fig. 2, rigid with a shaft 10 so that the minimum capacity position of one condenser corresponds to the maximum capacity of the other when there is no torsion in the shaft. The capacities vary linearly with angular rotation, and, if both are connected in parallel the total capacity remains constant in the absence of torsion. Fig. 1 shows the two measuring condensers 3, 4, in parallel, connected to a high-frequency generator 1 through a control impedance 2. The resultant wave is rectified at 5, the rectified output across the load resistance 7 being applied directly or through a condenser 31 to one pair of deflector plates of a cathode ray tube 9, the other pair of plates being fed in known manner with a linear sawtooth or sinusoidal voltage the frequency of which is dependent on the speed of shaft 10. Torsion in the shaft 10 produces a fluctuation in the total capacity of condensers 3, 4 the amplitude of which depends on the degree of torsion and is indicated by the oscillograph. For the measurement of torsional vibration the shaft 10 is elastically connected at each end to a flywheel.
Patent GB-150531-A (GB)
Title: An improved lace edging for trimming ladies' garments
IPC: A41D27/24
Filed: 1919-09-01
Abstract: 150,531. Manitaras (nÚe Rajaud), J. A. Sept. 1, 1919. Trimmings.-A trimming for supporting a camisole and chemise or two other garments comprises a band a, Fig. 1, of lace or embroidery provided with two separate edgings b, c, adapted to be secured respectively to the top edges of the two garments, Fig. 4, which are maintained in position by a single pair of shoulder straps.