baber/WOPTO huggingface dataset:
Patent GB-311870-A (GB)
Title: Improvements in electro-magnetic actuating mechanism for the reproduction of sound with radio loud speakers, telephone receivers and the like
IPC: H04R11/00
Filed: 1928-03-21
Abstract: 311,870. Danham, R. I. March 21, 1928. Loud-speakers; magnetic instruments.-An electromagnetic actuating mechanism for a loudspeaker has a rod-armature which has an axial extension forming a sound-post, and is axially disposed in two energizing coils housed in a permanent magnet system. In one construction, Fig. 1, the cylindrical magnet a is provided with cover plates b, c carrying cylindrical housings d, c for energizing coils f, g surrounding a rodarmature h carrying three discs k, l, m, in the positions shown, connected to the sound-post i and centred by a bridle-piece n. The coils f, g are found to produce opposing fields. In a modification, Figs. 3 and 4, four parallel bar magnets p carry V-shaped pole-pieces u, those at one end of the magnets being outside the latter, and that at the other end being between the magnets. The coils f, g are accommodated between the apices of the pole-pieces and surround a plain rod-armature carrying a sound-post.
Patent GB-177542-A (GB)
Title: Arrangement for maintaining constant the speed of direct current electrical machines
IPC: H02P9/12
Filed: 1922-03-24
Abstract: 177,542. Bethenod, J., (Assignee of Soc. Alsacienne de Construction MÚcanique). March 25, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Exciting; dynamos, regulating; motors, controlling. - In order to ensure the even running of continuous - current shunt - wound machines in spite of rapid variations in the line voltage the time-constant of the armature circuit is increased by means of an inductance C, Fig. 1, or means are provided' for accelerating the excitation of the field winding. The means provided in the field winding circuit may consist of a non-inductive resistance E by which the time-constant of the circuit is diminished, or of an auxiliary series dynamo F connected in opposition to the line voltage. A second field winding G is connected across the line and annuls the excitation due to the winding H during normal working. A non-inductive resistance I is connected in series with the winding G. The magnetic circuit of the dynamo F may be entirely laminated. One of the windings G, H may be omitted.
Patent GB-142264-A (GB)
Title: Improvements in or relating to heat deflectors applicable to gas stoves or to pans
IPC: A47J36/36
Filed: 1919-04-05
Abstract: 142,264. Shaw, A. Herring-. April 5, 1919. Heat-conventrators.-A device for use in heating cooking-vessels on gas-stoves consists of an extensible conical sheet of metal with overlapping ends a<3>, a<5>, Fig. 4, the outer end being pinched against the inner so as to connect them adjustably. The ends have " bolsters " a<4>, a<6> in which are fitted wire handles a<7>, a<3>, Fig. 2; the handle a<8> is fitted with a lever a<9> with a cam-like portion a<10>, which presses the part a<3> against the part a<5>. The device may be attached to the saucepan or the like, or to the stove.
Patent GB-468502-A (GB)
Title: Improvements in or relating to rubber garments
IPC: A41B9/04
Filed: 1935-10-02
Abstract: 468,502. Wearing - apparel. SPANEL, A. N. Oct. 2, 1935, No. 8670/37. Divided out of 464,019, [Group V]. [Class 141] [Also in Group V] In seamless rubber pants produced by dipping, the margins of the leg and waist openings are strengthened by rubber reinforcements integral with the rubber of the pants and formed during the dipping operation. In the drawing, which shows pants on a dipping form, the leg opening has a " flaring " reinforcement 114 produced by the action of surface tension, and the waist opening has a " teardrop " reinforcement 107 produced by the action of gravity. Superfluous rubber, such as that formed on the plate 172, has been removed by tearing at lines of weakness such as that produced by the sharp edge 173. The pants shown have the back extending beyond the front. In other forms the pants have longer legs or reinforced ventilating openings. Specification 464,019 is referred to.
Patent GB-901096-A (GB)
Title: Improvements in tracks for remote-controlled toy vehicles
Inventor: EDMONDSON ANTHONY JAMES KINGHO
IPC: A63H18/02
Filed: 1960-03-11
Abstract: 901,096. Toys. MINIC Ltd. March 3, 1961 [March 11, 1960], No. 8692/60. Class 132 (3). A track for remote controlled reversible toy vehicles has slots to receive a peg or the like that projects downwards from the vehicle or an electrical pick-up device by which the vehicle is guided, three slots 6, 7 and 8 arranged as a triangle with a length of slot 9, 11 and 12 beyond each junction A, B, C and means for ensuring that a vehicle after passing a junction from one of the two slots forming the junction and reversing its movement to approach the junction again must enter the other slot, the vehicle being turned through 180 degrees when it has completed one circuit. The vehicle has pick-up shoes which contact electric rails 5 in a base track of insulating material. The peg runs in the slot between the rails. The deflecting means at the junctions comprise catch points 14, or permanent magnets. A pivoted piece 15 biased by a spring 16 mounts each point 14. The magnets co-operate with a magnet or armature on the vehicle. Alternatively, the angle at which the slots meet at a junction ensures the vehicle following the correct slot.
Patent GB-122205-A (GB)
Title: Improvements relating to Heating, Cooling, Condensing or like Apparatus.
Inventor: BOWMAN EDWIN JAMES
IPC: F28D1/00
Filed: 1917-06-19
Abstract: 122,205. Bowman, E. J., and Wade, P. W. June 19, 1917. Straight tubes between headers or connecting boxes; honeycomb apparatus.-The circulating tubes cf a radiator for internal-combustion engines and other condensing, heating, and cooling apparatus are secured to the tanks in a watertight manner by the compression of rubber members which surround the tubes tightly, the arrangement facilitating repair and tending to prevent fracture. The arrangement is such that each row of tubes may be dismantled separately from the rest. As shown in Figs 3 and 4, a series of tubes 5 are secured between the upper tank and lower tank 1 of a radiator by means of dove-tailed or other shaped rubber members 4 fitting in similar grooves formed in the tanks, and as each row is assembled the rubber is compressed between a turned-up end 8 of the tank and a plate 12 actuated by a set-screw and carried by a detachable plate 10 The tubes 5 may be cylindrical or flat tubes and may be formed with gills. In modified forms each row of tubes may be replaced by a series of zig-zag tubes 39, Fig. 16, connected to small tanks 35 secured in position by rubber members as 4, or tanks such as 35 may be connected by three large vertical tubes connected together by radiating members, or by one chamber which is honeycombed with aircooled partition tubes. In modifications, the rubber members 4 are held in place by metal plates secured in position by key-pieces or by a screw carried by a pivoted member, or, as shown in Fig. 10, the members 4 are carried by metal members 27 secured to the tanks by lugs 28 and screws 29 which serve to compress the members 4. In a modification a metal member with turned up ends embraces the tubes 5, and one of the turned up ends is fitted with an adjusting screw for compressing each member 4.
Patent GB-1515638-A (GB)
Title: Ionisation chamber
IPC: H01J47/02
Filed: 1976-03-05
Abstract: 1515638 lonization chambers COMMISSARIAT A L'ENERGIE ATOMIQUE 5 March 1976 [7 March 1975] 08862/76 Heading H1D An ionization chamber comprises elongated probe body 2, base 1, collector volume 3, measuring electrodes including collector electrode 12, and flexible tube (14) (Fig. 2) for gas circulation connected to supply and evacuation connectors (4a, 4b) which pass in a leak tight manner through the base, the measuring electrodes being connected by electrical conductors 10, 2a to electrical connectors 5, 6 screwed in a leak tight manner to the base. Base 1 comprises, pedestal la, insulating sleeve 1b and flange 1c forming sealed chamber 1e. Tubular metal casing 2a is fitted on an insulating mandrel 8 which is screwed into pedestal la and grease fitted to the casing. Collector volume 3 casing may be an electrically conducting plastics material. Earthed electrode 12 is protected by shield 16 extended by tube 16a screwed into the base. Neutron detection and Co<SP>60</SP> exposure are mentioned.
Patent GB-766308-A (GB)
Title: Improvements in manufacture of coated seamless tubes
IPC: B29D23/00
Filed: 1955-03-29
Abstract: 766,308. Flexible tubes. UNITED STATES RUBBER CO. March 29, 1955 [July 9, 1954], No. 9112/55. Class 99(2) A method of manufacturing flexible seamless tubes having cured elastomeric coatings comprises mounting a braided fabric tube over a mandrel, applying a coating of liquid elastomer to the outer surface of the tube, setting the coating, removing the tube from the mandrel applying a second coating of liquid elastomer to the opposite surface of the tube and setting the second coating. The coatings may be of natural or synthetic rubber. The tubes are particularly useful as hot air ducts in aeroplanes. In Fig. 2 a seamless braided glass tube 10 is pushed on to a mandrel 16 and then covered and impregnated with a coating of rubber 11 The coating may be either an aqueous dispersion of natural or synthetic rubber latex or a dispersion of silicone rubber in any suitable organic liquid such as toluene gasoline or xylene. The strands 13 of the tube make an angle 14 of 40 degrees to 55 degrees with the axis of the tube so that diameter of the tube can be readily expanded and contracted. The coating may be effected by spraying, brushing or dipping. The coating is set by drying until it becomes non-tacky with or without curing. The tube is then pushed off the mandrel turned inside out remounted on the mandrel and its other side coated in a similar manner. In Fig. 3 a straight seamless tube 17 identical to the tube 10 is pushed over the curved mandrel 18 and coated. The inner surface of the tube is coated by closing one end of the tube by means of a cork plug, filling the tube by pouring liquid rubber therein and subsequently pouring out excess liquid rubber. The inner surface of a straight tube may be coated by the latter method also the inner surface of a curved tube may be coated on a mandrel by turning the tube inside out. If an aqueous dispersion of the usual vulcanizable latex is used both the inner and outer coatings may be cured at the same time. The latex may be of the precured type. If a dispersion of silicone rubber in any suitable organic liquid is employed it will be necessary at least, partially to cure the first coating before applying the second coating to the opposite surface of the tube. The second coating will then be cured as the final step.
Patent GB-621487-A (GB)
Title: Improvements in or relating to a method of preparing wood for use in the ageing of spirituous liquors
IPC: C12G3/07
Filed: 1944-05-12
Abstract: Tanning-containing wood, also containing penicillium spores, is treated to improve it for use in the ageing of spirituous liquor by mixing a quantity of said wood in comminuted untoasted condition, with or without a quantity of the said wood in comminuted toasted condition, with comminuted acorn kernel and maintaining the mixture moist until a prolific cryptogamic growth rich in aminosuccinamide has developed and the tannase produced has at least substantially completely dissociated the tannin present in the wood, thereafter adding a quantity of said wood in comminuted condition in which a substantial proportion of the fungi present other than penicillium have been destroyed, and maintaining the mixture moist until a prolific penicillic growth has developed.  This mixture is added to whiskey at the rate of one part to 16 parts of whiskey, or one part is added to 32 parts of fortified wine.  The wood may be the Bourbon variety of the white oak or glycyrrhiza.  The moistening solution is preferably 1 : 150 magnesium chloride solution and the acorns are used either fresh or after having been preserved in ethyl alcohol or isopropyl alcohol.  Specification 460,717 is referred to.
Patent GB-1094451-A (GB)
Title: Improvements relating to electric discriminating circuits
Inventor: SIMMONS BRAIN DESMOND
IPC: H04Q1/453
Filed: 1964-03-04
Abstract: 1,094,451. Transistor circuits for indicating the largest signal; voice immunity circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 15, 1965 [March 4, 1964], No. 9218/64. Headings H3T and H4R. [Also in Divisions G1 and G4] In a circuit for indicating which of a number of signals is the largest, the signals are fed to the base of respective transistors having a common constant current emitter supply. The circuit described is for use in a system in which signalling is effected by sending two tones, one in the range of the group of filters F1 to F4 and one in the range of the group of filters F5 to F8. The output of the filters is rectified and applied to the corresponding one of a number of transistors RI (1-8) to cause it to conduct. This cuts off a corresponding output transistor TO (1-8) releasing a relay in its collector circuit. The transistors RI (1-5) and RI (5-8) have constant current emitter supplies TC1, TC2 so that when one transistor in the group conducts due to the tone the others are cut-off and noise in the remaining filter circuits is not transmitted. Transistors TO (1-8) may be replaced by transistors of opposite conductivity type so that the relays release when a signal is present. Reference has been directed by the Comptroller to Specification 908,225.
Patent GB-392717-A (GB)
Title: Improvements relating to kilns and similar apparatus for the heat treatment of materials
IPC: F27B9/14
Filed: 1932-03-31
Abstract: <PICT:0392717/III/1> An evaporator forming part of a cement &c. kiln comprises tubes 29 opening at their upper ends into a header 33 connected to a slurry supply, and each containing a piston 36 which is depressed at intervals by a cam 38 to allow slurry to flow through the openings 35 and to trickle down the chains 41.  Transverse chains scrape the dried slurry from the chains 41 as the kiln is rocked about an horizontal axis.  Increase in the length of the rods 37 due to rise in temperature tends to increase the flow of slurry.
Patent GB-181160-A (GB)
Title: A new or improved safety device for lifts
IPC: B66B5/18
Filed: 1921-03-29
Abstract: 181,160. Eccles, T. March 29, 1921. Catch gear and like safety retaining-mechanism.-Ropes 7, 9 secured at the top and bottom of the lift well are passed once round pulleys 3, 4, respectively, secured to a shaft 1 mounted on the top of the lift x. The shaft 1 carries brake drums 5, 6 and is geared to a shaft 2 on which is mounted a centrifugal governor 11. The arms 12 of the governor are secured to sleeves 14 slidably mounted on the shaft 2 and provided with grooves 15 in which fit collars 16 attached to bars 18. The free end of each bar 18 receives the bifurcated end of a pivoted brake rod 19 connected to the brake bands 21. On the attainment of excessive speed, the movement of the sleeves 14 releases the brake rods 19 and causes the application of the brakes 21 to the drums 5, 6 and the stopping of the rotation of the shaft 1 causes the ropes 7, 9 and pulleys 3, 4 to act as a braking device for the lift. In a modification each of the pulleys 3, 4 is attached to one member of a clutch, the other member of each clutch being non-rotatable and pressed into engagement there with by governor-actuated mechanism.
Patent GB-584134-A (GB)
Title: Improvements in or relating to grilles or terminal fittings for ventilating ducts orthe like
IPC: F24F13/08
Filed: 1944-05-15
Abstract: 584,134. Ventilators. KENNETT, V. A. May 15, 1944, No. 9308. [Class 137] A ventilator grille comprises a plate 11 as of steel having integral louvres 12 formed by transverse cuts preferably each affording an inner and outer edge 15, 16, of adjacent louvres and by diverging end cuts 13, 14, which leave supporting material joining the louvre to the plate margins, the material and dimensions of the plate rendering the louvres sufficiently flexible to permit of bending by hand. The louvres may be spaced as shown so that the hingeing edge of one louvre is coincident with the free edge of the next, or the uncut end portions about which the bending takes place may be dispiaced slightly from a cut separating two adjacent louvres. A slotted hand tool may be used to grip and adjust the setting of a louvre. The louvres on one half of a grille may divert air away from the other half giving a lateral distribution.
Patent GB-117830-A (GB)
Title: A New or Improved Electro-magnetic Lockout Switch.
IPC: H01H71/68
Filed: 1917-06-28
Abstract: 117,830. West & Co., A., and Bossom, R. P. June 28, 1917. Electro - magnetic switches. - A lockout switch w i t h shunt closing-winding acting on one end of a centrally-pivoted armature lever and series holding - out winding acting at the other end has its magnetic structure so arranged that the flux produced by the shunt winding is divided into two portions, the main portion acting in the ordinary way to produce closure of the switch and the other assisting the flux due to the holding-out winding whereby the switch is rendered independent, in its action, of variations in the voltage across the shunt winding. In the form shown in Fig. 2, the lock-out switch is built up from an ordinary contactor switch (having shunt winding b and armature lever. g pivoted at f) by adding a fixed magnetic extension c' with a pole-piece for the series winding e and by providing the armature lever g with a magnetic extension g<4> to which one end of a leaf spring g<3> is secured, the other end carrying the adjastable lock-out armature g<2> passing through the extension g<4>. Part of the flux produced by tlie shunt winding is shunted through the lock-out armature, as indicated by dotted lines, and has a locking-out effect varying with the voltage across the shunt winding and, consequently, counterbalancing variations in. this voltage. When, with reduction of the current in the series winding, the armature g<2> is released it is carried away rapidly by the spring g<3>. In addition to the series winding c, the lock-out magnet may be provided with a shunt Winding momentarily energized for setting the switch in the " off " position initially. Alternatively, double series lock-out coils may be used to ensure the setting of the. switch, one of the windings being cut out by the preceding Jock-out switch, whereupon the switch operates as a lock-out.
Patent GB-873249-A (GB)
Title: Apparatus for forming spring liners for upholstery
IPC: B21F33/04
Filed: 1958-03-24
Abstract: 873,249. Upholstery. VAN DRESSER SPECIALTY CORPORATION. March 24, 1958 [May 13, 1957], No. 9389/58. Class 52(4). [Also in Group IX] A spring liner for use between upholstery springs and the padding above them consists of fabric 10 reinforced by helices of spring steel 20 projecting from both sides of the fabric as shown. The fabric passes between guides 14, 16 having a passage 17 of diamond-shaped cross-section. The wire 20 is fed against a surface 28 to shape it into a helix which pierces the fabric as it rotates through the passage 17. The wire is cut by shears 30 and the fabric is then advanced to receive the next helix.
Patent GB-842545-A (GB)
Title: Improvements in tissue paper and process for the production thereof
Inventor: WEICHOLD HANS
IPC: D21H11/12
Filed: 1959-03-18
Abstract: 842,545. Hand-made tissue paper. PAPIERFABRIK WOLFSWINKEL VEB. March 18, 1959, No. 9427/59. Class 96. Extremely thin tissue paper, e.g. weighing 10 gms. per sq. metre, similar to Japanese silk paper is made from 46% pine wood cellulose and 54% spruce wood cellulose, having a degree of disintegration of 80 JN, and cotton linters, and optionally coloured cellulosic artificial silk waste. The cellulose may be soaked in water at about 25‹ C., beaten to fibre lengths of about 2 cm. and mixed with bleached cotton linters of 2 to 3 cm. fibre length. The suspension is worked up and couched on to a sheet of sized paper to which it will not adhere, and air-dried at about 18‹ C. and 65% relative humidity. A hand-former with a plastic frame holding a metal mesh on which are placed an upper and a lower sieve may be used. Breaking up of the cellulose may be effected by a propeller similar to that used for outboard motor-boats.
Patent GB-125814-A (GB)
Title: Improvements in Filling Feeler Mechanism for Looms for Weaving.
IPC: D03D51/34
Filed: 1918-06-11
Abstract: 125,814. British Northrop Loom Co., (Northrop Loom Co.). June 11, 1918. Weft-feeler arrangements.-A feeler arm a, Fig. 1, is pivotally and slidably supported at its front end in a position offset from the rear end, on which is pivoted a feeler tip b adapted to swing freely within limits determined by the corners e, Fig. 9, and a wall f of the feeler arm, and provided with blunt teeth d, the feeler being adapted to slide along the bobbin towards its tip end on substantial exhaustion of the weft. The arm a is bent at u and passes through a broad passage-way l in a bracket i and an aperture in a vertical rock-shaft k mounted in the bracket. A piece n is screwed on the arm a in a position adjusted by a nut p and slides on guides o on the bracket, and a spring q normally holds the piece n against lugs forming the sides of the passage-way l. The arm a also passes through a slot z in a slidable controller x. So long as there is weft h on the bobbin g, the tip b does not slide thereon, and the arm a is moved forwards at the beat up against the action of the spring q with only a slight swing to the right, but, when the tip encounters the bare surface of the bobbin, it slides thereon to the right or towards the tip of the bobbin, and the arm a is swung far enough to move the controller x, so that, through a rod 11, a bell-crank lever is tilted to cause its horizontal arm 15 to raise a finger 16 of a latch 17 pivoted to a transmitter 19, which is pivoted at its front end to a lever on the usual rock-shaft 22 controlling weft-replenishment or stoppage of the loom. When the finger 16 is raised, a dagger 24 on the latch is engaged by the weft hammer 26, and the shaft 22 is rocked. When the lay moves backwards, the arm a is restored to its normal position by a lug on the piece n sliding along a fixed cam-surface w.
Patent GB-308666-A (GB)
Title: Manufacture of carboxylic acid halides
IPC: C07C51/58
Filed: 1929-03-25
Abstract: 308,666. I. G. Farbenindustrie Akt.- Ges. March 23, 1928, [Convention date]. Carboxylic acid halides are obtained by conducting the corresponding halogenated hydrocarbon with carbon monoxide, at an elevated temperature and under ordinary or raised pressure, over a catalyst comprising an inorganic acid of low volatility and stable at a high temperature, or an anhydride or salt thereof. Catalysts mentioned are phosphoric acid, phosphates, boric acid, boric anhydride and borates; they may be employed in a molten state or as a solidified melt with or without a carrier. Advantageously the carbon monoxide is present in excess. According to the example, methyl chloride and carbon monoxide are passed over sodium metaphosphate which has been spread in the molten form upon pumice; acetyl chloride separates out from the reaction products on cooling, and the uncombined gases are returned to the process. The Specification as open to inspection under Sect. 91 (3) (a) describes also the preparation of carboxylic acids and their other derivatives from the corresponding compounds poorer by one atom. This subject-matter does not appear in the Specification as accepted.