baber/WOPTO huggingface dataset:
Patent GB-1077263-A (GB)
Title: Improvements in or relating to pulse forming circuits
Inventor: DAVY JOHN RUPERT
IPC: H03K3/284
Filed: 1963-04-19
Abstract: 1,077,263. Transistor pulse circuits. BARR & STROUD Ltd. April 16, 1964 [April 19, 1963], No. 15441/63. Heading H3T. A mono-stable or astable pulse circuit of the type comprising a pair of transistors having a timing capacitor between the emitters and a coupling between the collector of one and the base of the other is modified by replacing each transistor by a pair of complementary transistors to improve the stability. In addition, in the mono-stable circuit shown, diodes 31, 32 are added and arranged to be non-conductive in the stable state of the circuit but to conduct in the astable state, by-passing resistors 33, 34 being chosen such that the voltage drop so varies with temperature as to compensate for the effects of emitter base voltage drops and also the voltage drops in the other diodes in the circuit.
Patent GB-291063-A (GB)
Title: Methods of producing printing plates by electrochemical processes
IPC: B41C1/10
Filed: 1928-05-25
Abstract: 291,063. Schinzel, C., (Assignee of Klasternigg, R.). May 25, 1927, [Convention date]. Justifying type.-Printing plates are produced by electrolytic, action on gelatine, albumen, or similar colloid layers containing ingredients such as hydroquinone or other photographic developers, chromic salts, ferric salts, and catalytic or hygroscopic salts, which under electrolytic action produce tanning or detanning agents. The text or design is applied in insulating ink either direct to the colloid layer or on a conducting paper or metal surface pressed into contact with the colloid. Specifications 186,255, and 261,840, [Class 98 (i), Photographic cameras &c.], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that in preparing these plates justification may be effected by repeated printing, photographically, or by using elastic surfaces which may be used to produce type-bars on zinc or aluminium strips. This subject-matter does not appear in the Specification as aecepted.
Patent GB-721583-A (GB)
Title: Electron tube device
IPC: H01J31/06
Filed: 1950-06-21
Abstract: 721,583. Electric discharge tubes. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 21, 1950 [June 21, 1949]. No. 15514/50. Class 39 (1). Electron tube arrangement comprises a cylindrical cathode K, a plurality of control electrodes S 1 -S 10  substantially radially directed to the cathode and disposed within an annulus coaxial with the cathode, a plurality of receiving electrodes P 1 -P 10  alternating with the control electrode's in such a way that each compartment formed between two adjacent control electrodes contains one receiving electrode located in that part of the compartment which is farthest from the cathode, means arranged outside the electron tube envelope H for producing a magnetic field parallel to the axis of the cathode, means for applying a positive voltage to the control electrodes, and means for selectively reducing the positive voltage on any of the control electrodes, the arrangement being characterized in that the ratio between the diameter of the cathode d k , Fig. 3a, and the distance between the parts nearest to the cathode of two diametrically opposite control electrodes d s  lies substantially between 0.01 and 0.65. The least values of this ratio required to obtain a full cathode current to the receiving electrodes at zero control electrode potential are stated to be 0.01, 0.32 and 0.65 for 10, 12 and 14 control electrodes respectively. The circuit connections not shown in the Figure are as in Specification 709,264.
Patent GB-1413002-A (GB)
Title: Fail-safe liquid pumping system
IPC: B22D11/10
Filed: 1973-04-02
Abstract: 1413002 Discharging molten metal GENERAL ELECTRIC CO 2 April 1973 [3 April 1972] 15720/73 Heading F4B [Also.in Division B3] Molten metal is discharged from a furnace 12 into a mould 18 through a conduit 16 by siphonic action intiated by a vacuum source 24. The flow through the conduit 16 is controlled by an electromagnetic pump 26. If the energization of the pump 26 fails, the flow of metal is terminated by opening a valve 28 which vents the conduit 16 to atmosphere. Upon venting of the siphon molten metal downstream of the siphon apex flows into mould 18, while metal upstream of the apex flows back into the furnace 12. In a further embodiment, the flow of metal is terminated by tilting the furnace.
Patent GB-662192-A (GB)
Title: Improvements in or relating to recovery of ruthenium from solutions
IPC: C01G55/00
Filed: 1949-06-15
Abstract: <PICT:0662192/III/1> A method of recovering ruthenium from a solution thereof comprises electrolytically oxidizing the ruthenium to the octavalent state, extracting the solution with a liquid halogen substituted paraffin to remove octavalent ruthenium and treating the paraffin with an aqueous acid solution to recover ruthenium.  In the apparatus shown, a cell 1 is divided by a porous diaphragm 2 into an anode compartment 3 and a cathode compartment 4.  The anode compartment is connected by a pipe 8 fitted with a pump 9 to a tank 7 for solvent such as tetrachlorethane, tetrabromethane, or carbon tetrachloride.  The tank has an outlet pipe 10 leading to a storage tank 11, an outlet pipe 16 fitted with a pump 17 and a distributor 18, and an inlet pipe 13 fitted with a pump 14.  The ruthenium solution is supplied to the anode compartment 3 where it is oxidized to the octavalent state.  The solution is then pumped through pipe 8 to the tank 7, wherein the tetrachlorethane extracts the oxidized ruthenium.  The tetrachlorethane is pumped to a tank 12 through pipe 16 and the aqueous phase is removed through pipe 10 for recirculation or to waste if all the ruthenium has been removed.  The tank 12 contains aqueous hydrochloric solution which extracts the ruthenium, the tetrachlorethane being recirculated through pipe 13 to the tank 7.  The acid solution is withdrawn through conduit 19.
Patent GB-888845-A (GB)
Title: Improvements in or relating to the preparation of wood pulp
Inventor: ALDRED FRED CROWTHER
IPC: D21D1/32
Filed: 1958-05-19
Abstract: 888,845. Drying apparatus. COURTAULDS Ltd. May 15, 1959 [May 19, 1958], No. 15933/58. Class 34(2) Wood pulp containing 15 to 75% of liquid, by weight, is dried in an apparatus comprising a chamber 10 which it enters through a duct 9 and in which it is contacted by hot air at a temperature of between 300‹ C. and 550‹ C. introduced through a duct 8. The resulting mixture is drawn by a fan 4 through a chamber 11 in which turbulence is induced by a rotating disc 2 mounted on the fan shaft 1 and carrying concentric circles of pins 5 which intermesh with pin circles 6 on the chamber casing. The dried pulpair mixture is discharged from the fan chamber 12 through a duct 14 at a temperature of between 90‹ and 120‹ C. and is passed to a cyclone separator. The air may be subsequently reheated and recycled to the chamber 10. Specification 809,429 is referred to.
Patent GB-109151-A (GB)
Title: Improvements in Mechanism for Operating Friction-clutches.
Inventor: GRAY JOHN WATSON
IPC: F16D13/70
Filed: 1916-11-09
Abstract: 109,151. Gray, J. W. Nov. 9, 1916. Clutches, friction.-Cone, Weston-plate, segmental, and like clutches are operated by links from bell-crank levers, themselves operated by toggle-links from the operating-collar, a spring being arranged in the actuating-mechanism or behind the normallv stationary clutch member in order to allow sufficient movement of the operating-collar to ensure that the toggle-links are moved over their dead-centres. Fig. 6 shows the application to a Weston-plate clutch, in which the operating-collar 2 is connected by toggle-links y to bell-crank levers t pivoted on a collar d on the shaft a. Links v actuate a sleeve l, between which and the presser-plate g of the clutch is a spring k, which may be so compressed that the links y may be moved over their dead-centres to lock the clutch in engagement and transmit drive from the spur-wheel or pulley 24 and the clutch casing e. The plate g slides on the shaft a, but, where the clutch is used to connect two shafts, it may slide on a sleeve carrying the collar d and with a flange engaging a recess in the part e, so that the clutching-thrust is self-contained; or, for the same purpose, the collar d may be carried on an extension of the casing e. The link v may be attached directly to the movable part of the clutch, and the necessary free movement may be obtained by making the normally fixed clutch member slidable on its shaft against the pressure of a spring. Fig. 3 shows the application to a segment clutch, in which the segments 8 are separated by right and left hand screws 10, operated from the spring- pressed collar 22 by levers 14 and links 12, 11.
Patent GB-272935-A (GB)
Title: Improvements in or relating to elastic fluid turbines
IPC: F01D5/24
Filed: 1927-06-16
Abstract: 272,935. British Thomson-Houston Co., Ltd., (Assignees of Doran, J. H.). June 21, 1926, [Convention date]. Blades.-Each tie wire 5 for a row of turbine rotor blades 3 is made in one continuous piece and is kinked between each blade and the next so as to be able to straighten out when the blades lengthen under centrifugal force. The wires 5 are secured in notches 6 in the edges of the blades.
Patent GB-1120560-A (GB)
Title: Improvements in electrical time delay apparatus
IPC: H03K17/292
Filed: 1967-04-07
Abstract: 1,120,560. Transistor switching circuits. ARROW ELECTRIC SWITCHES Ltd. 7 April, 1967 [3 May, 1966], No. 16069/67. Heading H3T. A time delay circuit in which a capacitor 25 is chargeable to a threshold voltage through an adjustable resistor 34, 35 from a D.C. supply 20, 21, switched at 19, which voltage when attained by capacitor 25 is utilized for a triggering operation, includes an auxiliary discharge path for capacitor 25, including a diode 36 and a bias supply 37, 38 to reverse bias the diode and hence block the discharge path, the bias supply being inoperative when D.C. supply 20, 21 is interrupted at 19, thus unblocking the discharge path to allow the capacitor to discharge. When capacitor 25 reaches the threshold voltage at an adjustable time after the closure of switch 19, unijunction transistor 42 breaks down, causing SCR 28 to conduct and energize relay 32, the relay remaining energized until switch 19 is opened. Should switch 19 be opened before the threshold voltage is attained, the bias supply is removed from diode 36, thus completing the auxiliary discharge path to discharge capacitor 25. Zener diode 37 may be replaced by a resistor connected to the junction of Zener 47 and resistor 33 (Fig. 2, not shown).
Patent GB-969376-A (GB)
Title: Improvements relating to door handles
Inventor: HALL WALLACE HENRY
IPC: E05B3/06
Filed: 1962-04-27
Abstract: 969,376. Door handles. SUNDAW PRODUCTS Ltd. April 16, 1963 [April 27, 1962], No. 16081/62. Heading E2A. A door handle b rotatably mounted on a plate a attached to the door by screws has an apertured cover cap c which is slid over the handle b and spring over the plate a, to conceal its fastening means. The cap may be of plastics material or metal. The door handle may be mounted on a metal disc, having stops to limit rotation, and be provided with a return spring positioned between the disc and the attachment plate.
Patent GB-951090-A (GB)
Title: Bottle lining process and apparatus
Inventor: WILKALIS JOSEPH M
IPC: B05C9/10
Filed: 1960-05-06
Abstract: <FORM:0951090/C3/1> <FORM:0951090/C3/2> <FORM:0951090/C3/3> A method of modifying the interior walls of a container made of synthetic or natural resin or rubber to render the walls receptive to a coating, comprises the steps of introducing into and filling the container with a heavier-than-air explosive mixture of gases in predetermined proportions such that oxygen is present with the products of combustion, the gases being introduced into the upright container only adjacent the bottom of the container to purge air upwardly, and then igniting the explosive mixture within the container to oxidize the interior walls and make them adherent to a coating.  The invention is an improvement on the method disclosed in Specification 834,263 and specifies containers (such as bottles) made of natural or synthetic rubber, polystyrene, olefin and diolefin polymers and, in particular, of polyethylene or nylon.  The explosive mixture is suitably a mixture of propane, ethane, natural gas, gasoline or kerosine with oxygen, and the modified walls obtained may be spray coated and then heated to cure or harden the coating.  Coatings specified are obtained from solutions, dispersions or suspensions of epoxy resins, polyvinyl chloride or vinyl ester-vinyl alcohol copolymers + ureaformaldehyde resins, polyacrylonitrile, nylons, acrylonitrile - styrene copolymers, polyvinyl alcohol, maleic anhydride copolymers, and pigment compositions.  The invention is illustrated by reference to an apparatus of the endless conveyer type wherein in Figs. 1 and 2, A is the surface treatment station, B is the coating station comprising spray nozzles 140 and C is the curing station, and in Fig. 3, 91 is the nozzle for introducing the explosive mixture which is exploded by means of the ignition assembly 88, 94, 95, 96, 97 in the bottle D.  The coated containers find application in the packaging of liquids, e.g. deodorants, hair preparations and cosmetic preparations such as skin lotions and perfumes.
Patent GB-881144-A (GB)
Title: Improvements in electrical pulse delaying circuits
Inventor: GREEN NORMAN GEORGE
IPC: H03K5/13
Filed: 1958-05-20
Abstract: 881,144. Valve and transistor pulse delaying circuits. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. May 20, 1959 [May 20, 1958], No. 16187/58. Class 40(6). In a pulse delaying circuit an input pulse is applied via a capacitor to a device which changes its resistance in dependence upon the applied voltage so that the input pulse causes it to change from a low to a high resistance state. After a given delay the capacitor discharges so that the device reverts to its low resistance state the change in state producing an output pulse. The Figure (Provisional) shows a pulse delaying circuit in which initially capacitor C is discharged and gas tube NT is conducting the discharge tube V being cut off by the negative voltage applied to its grid. When a positive input pulse is applied capacitor C is charged and the gas tube NT is extinguished so that the voltage of the grid of tube V rises and the tube conducts producing the leading edge of a negative output pulse at its anode which is terminated when capacitor C discharges through resistor R1 until neon NT strikes and tube V is cut off. The circuit may be applied to the production of a stroboscopic light source by connecting a second neon tube in the anode circuit of the tube V. In a modification, the Figure (Complete) a positive input pulse charges capacitor C and the combination of two back-to-back Zener diodes Z1, Z2 biased to high resistance so that the voltage of the base of the NPN transistor T rises and the transistor conducts thus producing the leading edge of an output pulse at its collector load R3. When the capacitor has discharged the Zener diodes again become of low resistance, the base of transistor T goes negative, and the transistor is cut-off thus terminating the output pulse.
Patent GB-512082-A (GB)
Title: Improvements in and relating to bagatelle and similar games
IPC: A63F7/00
Filed: 1938-05-31
Abstract: 512,082. Table games. EVENS, T. N. May 31, 1938, No. 16206. [Class 132 (ii)] In order to control the direction of the course of the balls in bagatelle and the like board games an arm H, I is provided pivoted at E by means of a turntable C at the top of the board B and adapted to be moved angularly across it. The arm is provided with wings L, M forming passage ways S and with openings N adapted to clear obstacles O arranged on the board or through which the balls may be deflected. The balls run from the turntable C down through passage ways S and may either be deflected through N by obstacles O or may be carried in the angle of the crosspiece Q whence they may be projected sideways. The board is arranged to slope so that the ball runs under its own momentum.
Patent GB-425289-A (GB)
Title: Improvements in and relating to sterilising apparatus
IPC: A61L2/10
Filed: 1933-06-06
Abstract: <PICT:0425289/III/1> Containers, e.g. paper milk - bottles are sterilized by subjection to ultra violet rays emanating from a source around which the containers are passed in an arc by means of a conveyer.  In the arrangement shown, bottles 9 secured by clips to a belt 2 are carried in an arc around a mercury vapour lamp 10 behind which is arranged a reflector 11.
Patent GB-457791-A (GB)
Title: Improvements in and relating to bands for use as bracelets or for wristlet watches and like purposes
IPC: A44C5/24
Filed: 1935-06-05
Abstract: 457,791. Jewellery ; fastenings. NAPPER, A. F., 34, Dale View Crescent, North Chingford, London. June 5, 1935, No. 16340. [Class 43] [See also Group XXV] A bracelet or the like comprises a fastening device in the form of two curved plates 4, 5 pivoted end to end and adapted to fold one within the other, the plate 5 being pivotally connected to one band portion 2 and the other plate 4 provided with apertures 7 to receive the hooked extremity 8 of a band portion 1. The plate 4 has a transverse bar 10 on its rear face for guiding the band 1 and slots 12 which co-operate with projections 11a to hold the plates in folded position. The bracelet may be formed from a single length of flexible material or from two parts provided with means for engaging a wrist watch.
Patent GB-834687-A (GB)
Title: Improvements in and relating to articulated tractor units
IPC: B62D53/08
Filed: 1957-05-23
Abstract: 834,687. Hand trucks for manipulating vehicles. WHITE, J. C. S. Aug. 21, 1958 [May 23, 1957], No. 16359/57. Class 108(1) An auxiliary bogie for supporting the forward end of a semi-trailer comprises a frame 1 provided with a pad 9 for engaging the semi-trailer chassis and is supported on fixed axle wheels 3 and on a pair of castors 4 journalled on a vertical axis 7. An hydraulic jack may be used instead of the pad 9 to engage the semi-trailer.
Patent GB-1481006-A (GB)
Title: Manufacture of components from powders and preformed elements
IPC: B22F7/06
Filed: 1974-07-03
Abstract: 1481006 Sintered coatings ASSOCIATED ENG Ltd 3 July 1974 [5 April 1973] 16416/73 Heading C7D In a processs for the manufacture of a component from an electrically-conductive powder in contact with an electrically-conductive preformed element, a pressure is applied to the powder and element and simultaneously an alternating current, having an effectively zero reference potential, or a chopped direct current is passed through the powder. In one embodiment, the powder 17 is placed in a die 1, made of, or lined with, insulating material, and lightly compacted by ram 4 on to a metal substrate 18 between metal punches 2, 3, after which current from source 13 heats the compact, and, when the desired temperature is reached, ram 4 is connected to high pressure conduit 10 for final compression. The die 1 and punches 2, 3, may be watercooled. In another embodiment, the powder is deposited on to a sheet or strip which is rolled between electricallyconnected rollers. In examples, a W-Ag layer is formed on Cu strip, a WC-CO layer on steel, a  "Stellite", RTM layer, a Co-Cr-W-C alloy, on Ni-base alloys, for turbine blades, or Al/Al 2 O 3  on to Al alloy turbine blades.
Patent GB-462368-A (GB)
Title: Improvements in socket wrenches
IPC: B25B13/44
Filed: 1935-06-06
Abstract: 462,368. Wrenches. CENAL Y LORENTE, T., and CENAL Y LORENTE, J. June 6, 1935, No. 16461. Void. Convention date, June 23,1934. [Class 61 (iii)] The part B of a wrench carrying the movable jaw 4 has a rectangular shank 5 guided in a transverse opening 2 in the member A carrying the fixed jaw 1 and actuated by a rotatable member C with an eccentric pin 7 engaging a slot in the shank 5. The member C is retained in the part A by a ring 9 and has a socket 8 to receive the end of the driving handle or the latter may be permanently attached to the member C.
Patent GB-258026-A (GB)
Title: Improved method of and means for applying ornamental designs to pile fabrics
IPC: D06P5/00
Filed: 1925-06-27
Abstract: 258,026. Brown (Manchester), Ltd., T., and Brown, T. June 27, 1925. Printing processes; embossing. - Ornamental designs are applied to pile fabrics, particularly velvet or velveteen fabrics cut to sizes suitable for cushion covers, by means of engraved metal dies over which a liquid or semi-liquid mass of a gum mucilage and colouring matter or metallic powders is spread by means of rollers, the dies being cold, and the fabric being placed upon the dies, plush side downwards, and under oonsiderable pressure forced into contact therewith. The designs may be in colours, in gold or silver, or in a combination. The rollers may be formed as a removable unit so as to be adapted for use with different presses.
Patent GB-1067946-A (GB)
Title: Method for degassing and refining carbon-containing metal melts
IPC: C21C7/10
Filed: 1965-04-20
Abstract: A carbon-containing metallic melt particularly alloyed steel is degassed and refined by blowing first an inert gas such as argon then a mixture of an inert gas and oxygen against the melt surface, the amount of oxygen being limited to such quantity that only C and elements easier to oxidize than C such as Si and Mn will be oxidized to avoid the loss of other alloying elements such as Cr, Fe, Ni, Co more difficult to oxidize and minimize red iron oxide fume formation. Inert gas is also blown against the components of the melt being melted; subsequently oxygen is added followed by a final blowing again with inert gas only.  The refining may be effected by using commercial grade argon containing 2% by volume oxygen, the initial and final degassing with pure argon being effected by leading this argon through layers of iron chips and titanium sponge at 875 DEG C. Oxidation may be made in several steps alternating with degassing blowings. The process may also be applied to the re-melting of scrap while adjusting its composition.  In manufacturing alloy steels, e.g. austenitic steels of composition 0.05% C, 15% Cr, 25% Ni, 0.4% Si, 0.3% Mn, 0.3% V, 0.3% Mo, 2% active Ti, balance Fe, Ti may be added to the degassed and refined steel melt at 1650 DEG  C. in the form of a Ti-Ni alloy.
Patent GB-932483-A (GB)
Title: Non-woven synthetic fiber structures
IPC: D04H1/54
Filed: 1961-05-08
Abstract: 932,483. Non-woven webs; paper containing Synthetic fibres. E. I. DU PONT DE NEMOURS & CO. May 8, 1961 [May 9, 1960 (2)], No. 16610/61. Drawings to Specification. Classes 42 (2) and 96. A non-woven web comprises at least 50% by weight of synthetic organic spontaneously elongatable fibres and from 3 to 50% by weight of a synthetic organic polymer binder disposed uniformly throughout the web. By the term " spontaneously elongatable fibres " is meant fibres which are capable of elongating spontaneously at least 3% upon heating at a temperature 30 C. above the second order transition temperature of the fibres for five minutes. Suitable materials for the fibres are polyethylene terephthalate, polyhexahydro-p-xylylene terephthalate, polymers of monomers prepared by reacting terephthalic acid with ethylene glycol, poly(p-xylylene azelaeamide), polymethanes, acrylonitrile polymer and polypropylene. The fabric may be made by preparing a suspension of the spontaneously elongatable fibres and the binder in water, preparing a waterleaf from it slung by papermaking technique, drying the waterleaf at a temperature below that at which the fibres elongate spontaneously and also below the fusing temperature of the binder, then heating the waterleaf at a temperature sufficient to fuse the binder and to elongate the fibres at least 3%. The binder may be in the form of fibrids i.e. non- rigid wholly synthetic polymeric particles capable of forming paper-like structures. The fibres may be of staple length or in the form of continuous filaments. Specifications 841,230, 849,154, 849,156, 868,651, 914,714 and 932,482 are referred to.