baber/WOPTO huggingface dataset:
Patent GB-968675-A (GB)
Title: Improvements in tear-resistant sheet material
Inventor: LORD WILFRED
IPC: D03D15/00
Filed: 1960-06-22
Abstract: Tear resistant sheet material which is resistant to the incidence of porosity comprises an elastomer-impregnated fabric of open weave having ground ends and picks of synthetic non-cellulosic long-chain polymeric material reinforced at intervals by threads of greater tensile strength and having fibrous cellulosic warp threads interposed between the synthetic non-cellulosic warp threads of the ground ends.  The fibrous cellulosic warp threads may be interposed between each of the synthetic non-cellulosic warp threads, and may have a finer count than the synthetic non-cellulosic warp threads. The reinforcing ends and picks may comprise groups of warp and weft threads. Reinforcing threads may be provided by periodic ends and picks of greater tensile strength than the synthetic non-cellulosic ends and picks, the reinforcing ends and picks preferably being respectively of groups of warp and weft threads.  The sheet material may be prepared by coating the open weave fabric with a layer of an elastomeric composition, compressing to flatten the projections where the reinforcing threads overlie each other and subsequently coating with a further layer of elastomeric composition.  The synthetic non-cellulosic long-chain polymeric material may be a polyamide, e.g. 6.6. nylon, or a polyester, e.g. polyethylene terephthalate. Cellulosic warp threads may be of staple fibre such as cotton.  The elastomer composition may be applied to both sides of the fabric, preferably in several layers, and may contain natural rubber, e.g. butyl rubber.ALSO:Non-porous tear-resistant sheet material consists of an elastomer-impregnated fabric of open plain weave having ends and picks of nylon 66 or polyethylene terephthalate reinforced at intervals by weaving two ends as one and two picks as one, thin cotton warp threads of greater crimp alternating with the synthetic warp threads.  Each cotton end weaves as one with the synthetic end on one side of it, but passes through the same dent of the reed as the oppositely-shed synthetic end at the other side of it.
Patent GB-460636-A (GB)
Title: Aeroplane stabilising means
IPC: B64C3/54
Filed: 1935-08-01
Abstract: 460,636. Stabilizing aircraft. GRAY, W. E. Aug. 1, 1935, No. 21810. Drawings to Specification. [Class 4] A fixed lifting-wing for aeroplanes having a span several times as great as its mean chord, of aerofoil section and parallel or moderately tapered in plan is provided on its upper surface with a fin or fins near each wing-tip ; the fins lie approximately in or are skewed out from fore and aft vertical planes, extend over the whole or the major forward portion of the wing chord and are increased in height from the front towards the rear. The fins may have a mean height of about 15 to 25 per cent of the wing chord and may be situated in the region of <1>/6 or <1>/7 of the wing span from the wing-tips. The ailerons may be situated entirely or mainly outboard of the fins. In the latter case the rear ends of the fins may be telescopic. The fins may be applied to the inboard ends of automatically or manually operable or fixed wing-tip slot-forming slots. The fins may be folded into the wing surface and may have adjustable rear ends and the wing inboard of the fins, may be designed to have an early stall. The fins may be formed as cantilever structures fused into the wings.
Patent GB-647532-A (GB)
Title: Improvements in rotative winged aircraft controls
IPC: B64C1/00
Filed: 1947-08-08
Abstract: 647,532. Helicopters. AUTOGIRO CO. OF AMERICA. Aug. 8, 1947, No. 21894. Convention date, May 15, 1944. [Class 4] A helicopter of the type in which a hub-driven lifting rotor and a torque-reaction compensating airscrew are permanently geared to one another with fixed gear ratio, and each is provided with a collective pitch varying mechanism and a pitch controlling member is connected to the pitch varying mechanisms of both rotor and airscrew and a pilot-operated yawing control member is connected to the pitch-varying mechanism of the airscrew, the control connections being such that movement of the yawing control member varies the airscrew pitch without disturbing the rotor pitch and movement of the pitch-controlling member varies the rotor pitch and concurrently varies the airscrew pitch to the extent required to maintain approximate compensation of rotor torque-reaction, is characterized in that the pitch-controlling member is power-operated by means controlled by a speed-responsive governor so as to maintain the rotor speed constant. Each rotor blade 4 is mounted on a universal joint 5 providing flapping and drag movements and has a pitch control arm 14 connected to a pitch control mechanism 11, 12, 13, 15 of which the sleeve 11 is free to slide on the rotor driveshaft 7 under the action of a lever 50 pivotally mounted on the aircraft at 51. Rocking movement of the lever 51 is effected by a screw-andnut mechanism 46, 47 driven by an electric motor 38 which is controlled by a switching device 39, 40, 41 of which the movable arm 39 is adjusted by a rotor-driven governor 35 so that variations in rotor speed result in compensating adjustments of blade pitch. The mean rotor blade pitch setting may be adjusted by a manual control 43. A torque reaction compensating airscrew 8, which may be located in the position shown or may be laterally disposed on a longitudinal axis, is geared to the rotor shaft 7 by a shaft 9 and the pitch of the blades is adjusted by connecting the pitch-controlling mechanism 10 to the extremity of the lever 50 by means of a cable system 52 and a chain 31. In order that directional control of the helicopter may be achieved by movement of the rudder bar 56 without disturbing the pitch of rotor blades, the cable 52 is passed over pulleys 53 which are mounted on a bar 54 movable laterally by a cable 55 connected to the rudder bar 56, to lengthen or shorten the appropriate portion of the cable 52.
Patent GB-299136-A (GB)
Title: Improvements in magnetic separators
IPC: B03C1/08
Filed: 1927-08-23
Abstract: 299,136. Greaves, R. Aug. 23, 1927. Magnetic separators.-In a magnetic separator of the shute type in which the floor of the shute is provided with transverse bars a, b wound to produce opposite poles, curtain poles c are disposed over the bars a, b and are connected magnetically with a floor bar of opposite polarity to that over which it is placed. The bars c, which may have prongs 2, are provided with bosses 3 tapped to receive screws 4 of non-magnetic material which rest on the floor bar so that the position of the prongs 2 may be adjusted relatively to the floor bar. In order that the bars c may be removed for cleaning purposes, metal flaps 5 are hinged at 6 to the top of the pieces c and when the bars a, b are energized, contact with plates 8 of a bracket 7 secured to the next floor bar. For the separation of ferrous particles from oil the pieces c may be fitted into channel or other guides on the side of the casing which encloses the bars a, b.
Patent GB-188416-A (GB)
Title: Improvements relating to cycle saddles and the like
IPC: B62J1/08
Filed: 1921-08-22
Abstract: 188,416. Brooks & Co., Ltd., J. B., and Hawkes, A. Aug. 22, 1921. Cycles and like vehicles.-Means for attaching wires or rods to other metal parts of a cycle saddle &c. consists in forming one or both ends of the wire or rod with recesses, grooves, &c. and fitting over the end a sleeve having a reduced upper end, which is engaged through a hole in the metal part, the sleeve then being pressed to cause the metal of the sleeve to enter the recesses &c. in the wire or rod and to spread over the metal part of the saddle. As applied to the connection of the wire underframing to the back plate of a cycle saddle, the wire 1, Figs. 3 and 4, is formed with recesses 3, and is threaded to receive a sleeve 4, having a reduced end 5, which is inserted in a hole 6 in the back-plate. The metal of the end 5 is forced into the recesses 3 and spread over the back-plate 2 by means of a press. The upper end of the wire 1 is flush with the top of the back-plate, or it may be sunk, as shown in Fig. 16.
Patent GB-331117-A (GB)
Title: Improvements in buffing and draw gear for railway and like vehicles
IPC: B61G9/10
Filed: 1929-07-19
Abstract: 331,117. Spencer Moulton & Co., Ltd., G., and Glascodine, R. T. July 19,1929. Combined buffer and draw-gear.-In a combined buffer and draw-gear for railway &c. vehicles of the kind in which a draw-bar yoke 11 surrounds follower plates 4 which co-operate with wedgeshaped friction members 3 and also with a spring or springs resisting movement of the wedges, the springs are of the indiarubber type, preferably comprising a series of rubber frames, bars or concentric rings 1 moulded on to perforated metal plates. In the construction shown a rubber spring is mounted on a central metal rod 8 and extends between end plates 2 having cam surfaces 7, between which and the wedges 3 are disposed cylindrical rollers 5. Both under buffing and draught stresses the movement of the wedges 3 compresses the spring, which is divided into two portions by a plate 10 secured to the rod 8.
Patent GB-369135-A (GB)
Title: Process for the production of terra-sigillata coatings on ceramic ware
IPC: C04B41/87
Filed: 1931-08-06
Abstract: 369,135. Ornamenting pottery; glazes. COMES, A., 14, Bahnhofstrasse, B³ckeburg, Germany. Aug. 6, 1931, No. 22289. [ A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 7, 1931.] [Class 87 (i).] " Terra sigillata " coatings are produced by converting a " fat," red-burning, ferruginous clay, such as that of Rheinzabern or Saverne (Lower Rhine) or Jockgrim, into a slip with alkali, such as soda, which is allowed to stand and is repeatedly decanted for 4 to 5 weeks, when no further precipitate is thrown down, after which it is allowed to stand for a further 14 days, when the clay swells and the slip becomes gelatinous. The coated ware is fired in an oxidizing atmosphere in a muffle oven at 1000‹ Celsius. The red-tinted ware may be turned grey or black by steaming at the completion of the firing.
Patent GB-775827-A (GB)
Title: Improvements in or relating to apparatus for generating periodic rectangular voltageimpulses having variable impulse ratios
IPC: H02P7/29
Filed: 1955-08-03
Abstract: 775,827. Automatic speed control systems. SIEMENS-SCHUCKERTWERKE AKT.-GES. Aug. 3, 1955 [Aug. 3, 1954], No. 22364/54. Class 38 (4). A periodic voltage of triangular waveform is applied, in opposition to a direct voltage, to a transistor amplifier the output of which is a periodic voltage of rectangular waveform having a mark-space ratio dependent on the magnitude of the direct voltage. In Fig. 1, to maintain constant the speed of a machine 24 driven by an electric motor M, a.tachometer generator 26 associated with a junction transistor amplifier 30 produces, between terminals 13, 14, a direct voltage dependent in magnitude on deviation of speed from a desired value set by a potentiometer 27. This direct voltage is applied to a transistor amplifier and square wave generator 18 in opposition to a voltage of triangular waveform produced between terminals 11, 12 by a multi-vibrator 1 including transistors 2, 3. The square-wave output voltage of amplifier 18, which has a mark-space ratio proportional to the speed error, is utilized to correct the speed by controlling an amplifier 19 energizing armature 20 of the motor. In one modification the voltage of triangular waveform is produced by a relaxation oscillator using a single point transistor and in another modification amplifier and square wave generator 18 is replaced by a push-pull circuit including two transistors.
Patent GB-696111-A (GB)
Title: Locks
IPC: E05B59/00
Filed: 1951-09-25
Abstract: 696,111. Locks. PARKES & SONS, Ltd., J., and BUTTER, F. J. May 29, 1952 [Sept. 25, 1951], No. 22365/51. Class 44 In a lock incorporating a dead bolt 10 actuated by rotation of a key or key operated plug, a spring bolt or catch 25 is actuated by continued rotation of the key or key operated plug in the withdrawal direction after full withdrawal of the dead bolt, by means comprising a lever 30 having a fixed pivotal mounting 31 in the lock case 12 and carrying a pivoted rocker 34 for withdrawing the spring bolt or catch 25, the lever 30 being directly actuated by the dead bolt 10 during the final part of its withdrawal movement so as to bring an arm of the rocker 34 into the path of the key bit or of a thrower or radial arm 18 of the key-operated plug so that continued rotation thereof in the same direction turns the rocker about its pivoted axis 33 and causes another arm of the rocker to co-operate with an abutment 36 on the spring bolt or catch to withdraw it. The lever 30 has an abutment 32 which is engaged by the tail of the dead bolt during its withdrawing movement to pivot the lever 30 against the pressure of a spring 35. The dead bolt is operated from the outside of the door by the thrower 18 and a second plug 23, by which it may be operated from inside the door is provided; this plug does not operate the spring bolt and may be spaced from the first mentioned plug. as shown or arranged coaxially with it. The dead bolt may have conventional security mechanisms for locking it in its withdrawn or shot positions consisting of two spring loaded gated levers 19 which can engage a stump 20 on the bolt. The spring bolt can be withdrawn from inside the door by means of an integral knob 29.
Patent GB-172062-A (GB)
Title: Improvements in furnaces or kilns
IPC: F27B13/02
Filed: 1920-07-28
Abstract: 172,062. Boyer, J. July 28, 1920. Gaseous-fuel kilns.-In a kiln having a bag wall a<3> and a space f for the goods, the air inlet a<0> is arranged above the gas inlet b<0> to effect ignition opposite to the air inlet. The combustion air is obtained direct from the atmosphere without passing through other kiln chambers and may be preheated and/or under pressure. In a group of such kilns, each kiln is connected to a common gas main and exhaust flue and since each is independently operable and also interconnected with the others, the combustion products may be exhausted direct from the firing chamber or chambers; passed through any or all of the remaining chambers to preheat the goods, and/or passed through regenerators between consecutive kilns.
Patent GB-204478-A (GB)
Title: Improvements in food products
IPC: A23L7/196
Filed: 1922-08-17
Abstract: 204,478. Luft, S. Aug. 17, 1922. Treatment by damping and steaming; mixing; roasting granular materials.-Broken rice or other grain or inferior wheat, emmer, mils, &c., is. moistened by agitating with plain or salt water- and then " cured " by allowing it to stand in an airtight container in a compact mass to equalize the moisture, then steamed in a bag or on a perforated plate at a pressure slightly above atmospheric and then roasted. During roasting the moisture is first driven off and then the material is dextrinized by dry heat. The temperature is raised gradually from about. 120‹ F. to 300‹ F. and the material may be agitated. After cooling to about 180‹ F., saccharine and seasoning substances may be added.
Patent GB-240150-A (GB)
Title: Improvements relating to closures for bottles and other containers
IPC: B65D41/04
Filed: 1925-09-08
Abstract: 240,150. Sterling, A. J., (Assignee of Batchelor, H.). Sept. 16, 1924, [Convention date] Cap-stoppers, bayonet-joint; detachable stoppers secured by clips; sealing-devices for closures.-A container having projections around its mouth is sealed by placing on it a closure cap 29, Fig. 10, having a skirt provided with lugs 22, engaging the lugs with the projections on the container, and bending the material of the skirt above the lugs to shorten the skirt and draw the closure into sealing engagement with the mouth of the container. The cap is formed with a slotted bead 27, adapted to be compressed vertically, by a pair of pliers, for instance, to effect the tightening. The underside of the projections on the container are cam-shaped to draw down the cap and one of them is formed with an extension or stop 24 against the vertical wall of which the end of a tongue 32 abuts when the cap is in the sealing position. The tongue, which may have a distinctive colour, is so insecurely attached to the cap that bending it outwards to an inoperative position, or turning the cap detaches it. In a modification the container has a single projection around its mouth and some of the slots in the bead are continued to the bottom of the skirt to adapt the lugs to spring over the projection as the cap is pressed down on to the container. In another form, the skirt is cut away in parts, leaving downward projections 36, Fig. 11, each provided with a curved portion 38 corresponding to the bead 27 and lugs 22 adapted to spring over a single projection 35 to secure the cap on the container.
Patent GB-455247-A (GB)
Title: Process and apparatus for the manufacture of road-making material
IPC: E01C19/10
Filed: 1935-08-09
Abstract: 455,247. Bituminous compositions. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(Wigankow & Sachse Neuzeitlicher Strassenbau Ges. ; 9, Teilestrasse, Tempelhof, Berlin) Aug. 9, 1935, No. 22512. [Class 22] Road-making material adapted to be laid cold is made by coating mineral aggregate with molten bitumen of high melting point and applying a dusting powder by passing the material through a cooling drum in which it is cooled down to the dripping point by a stream of cool dust-laden air flowing in the direction of the travel of the material and also in counter current thereto. As shown, the hot material from a mixer passes first through a drum 2 through which cool air carrying dusting powder is blown through a pipe 6, and then through a second drum 4 through which air carrying dusting powder is blown in counter direction through a pipe 7. The dust adheres when the bitumen has been cooled to the dripping point.
Patent GB-979979-A (GB)
Title: Improvements in or relating to magnetite
Inventor: KING RICHARD EARL
IPC: C21B13/00
Filed: 1962-06-12
Abstract: <PICT:0979979/C1/1> A major portion of the non-magnetic compounds of a ferruginous ore is converted to magnetite by passing a suspension of the finely divided ore (the largest particle of which will pass through a standard U.S.A. mesh 10 sieve), in a moving stream of reducing gases heated to a temperature below the fusion point of the ore, through an inlet into a closed reaction zone having an outlet higher than said inlet, the ore flowing concurrently with the reducing gases, the ratio of gases to ore being that required to reduce substantially all of the iron oxides to magnetite, and the velocity of the gases being such that the suspension is conveyed upwardly through the reaction zone and the ore particles do not settle out by gravity alone, and separating the reduced one from the gases.  The reducing gases may contain CO, CO2 and N2, the ratio of CO to CO+CO2 being maintained at a value within the magnetite phase area of the equilibrium diagram for iron, carbon and oxygen.  Ore from bin 10 is transferred to dry-grinding system 11, where it is pulverized and dried simultaneously so that the ore will all pass 10 mesh, and thence to air-classifier 12, cyclone separator 13 and bin 16.  Ore particles from 16 are suspended, for preheating, in gas flowing through 18 to cyclone separator 19, whence exhaust gases are returned through 21 to grinding system 11 for ore drying.  Ore particles from 19 are suspended, for further preheating, in gases flowing through 23 to cyclone 22, whence exhaust gases pass through 18.  Ore from 22 is suspended in reducing gases flowing through reaction zone 27 to cyclone 24, whence exhaust gases pass through 23. The reducing gases are obtained from generator 26 supplied with fuel and air at 28, 29, exhaust gas from cyclone 22, being added to 28 if desired.  Ore particles from 24 pass through cooler 32 to magnetic separators 33, and the magnetite is briquetted at 34.  Introduction of ore particles into the gas stream may occur at a Venturi throat.
Patent GB-1430212-A (GB)
Title: High speed data separator
Inventor: SORDELLO F
IPC: H03L7/08
Filed: 1973-05-11
Abstract: 1430212 Digital data storage INFORMATION STORAGE SYSTEMS Inc 11 May 1973 [23 Aug 1972] 22546/73 Heading G4C A circuit for separating clock and data components of a data signal includes a variable frequency oscillator 20 (Fig. 1), (51, Fig. 3, not shown), and gates 11, 12 (47, 48) alternately enabled by the oscillator output, the frequency of the oscillator being correlated with the data signal. In the embodiment of Fig. 1, the outputs of gates 11, 12 representing respectively the clock and data components are fed back to circuits 28, 29, respectively which, when enabled, sample and hold a sawtooth output from the variable frequency oscillator 20. Differential amplifier 42 compares the outputs of the sample and hold circuits and controls the variable frequency oscillator. In the embodiment of Fig. 3 (not shown), only one sample and hold circuit (62) is utilized the outputs from which control the oscillator. The circuit receives as inputs a sawtooth output from the oscillator and the output of AND gate (56) enabled by the enabling signal to one of the output AND gates (48) to pass both the data signals and the data signal delayed by half the average data pulse frequency. The apparatus is suitable for separating signals coded by modified frequency modulation.
Patent GB-1187294-A (GB)
Title: Electrostatic Printing Technique
IPC: B41M1/12
Filed: 1967-05-16
Abstract: 1,187,294. Printing processes. MONSANTO GRAPHIC SYSTEMS Inc. 16 May, 1967, No. 22644/67. Heading B6C. Stencilling apparatus suitable for printing on a curved article 34 or a flat article such as a web (106), Fig. 5 (not shown), comprises a conductive screen 10 having apertures there through arranged in the form of a desired image; means 12, 16 for loading the apertureswith electroscopic powderparticles from a source 14, and wiper means 32 for pushing out the particles from theapertures into an electric field established between the screen 10 and the article such as 34 to beprinted. The screen may be in the form of a movable endless band. The screen is earthed and the loading means includes a nozzle 16 which supplies the fluidized powder between an electrode 12 and the screen. Alternatively the electrode may be incorporated within the nozzle. The loading means may alternatively comprise a plastics or semi-conductive roller (62), Fig. 3 (not shown) supplied with powder from a housing including a charged plate (52) and charged wires (56) or a brush (94), Fig. 5 (not shown) which applies the powder to the screen via a charged grid (96). Any powder passing through the apertures before printing is removed by a belt 22 associated with vacuum means 30. In a modification, Fig. 4 (not shown) the belt is replaced by an electrode device (70). The wiper blade 32 may be of ceramic or plastics material and preferably includes a conductive wire 36 connected to a source of potential. The article, if conductive, is connected to a further source of potential so as to attract the powder from they apertures. If the article is insulating a conductive screen is located behind it. The article 34 is rotated so that a point on its periphery moves at the same speed as an adjacent point on the screen.