baber/WOPTO huggingface dataset:
Patent GB-1374577-A (GB)
Title: Welding electrodes
IPC: B23K35/02
Filed: 1970-10-26
Abstract: 1374577 Welding by fusion, making welding electrodes BRITISH OXYGEN CO Ltd 26 Oct 1971 [26 Oct 1970] 50851/70 Headings B3R and B3A [Also in Division C7] The flux core of an arc-welding electrode having a tubular metal sheath, includes magnetised elongated particles of electrically conducing ferromagnetic material which constitute not less than 10% by weight of the complete electrode. Preferably, the particles are magnetic in flake, fibre or needle form and constitute between 15 and 30% by weight of the total electrode. Preferred core compositions are The sheath is made from manganese, carbon and iron and the electrode is formed by incorporating the core in a sheath of channel section, the iron particles being unmagnetised, closing the core and drawing. The particles are magnetised after insertion into the sheath in a fired or pulsating magnetic field from a permanent or electromagnet, during which the sheath may be vibrated.
Patent GB-1198489-A (GB)
Title: Improvements in or relating to Pipe Couplings
Inventor: SANFORD RICHARD AYSHFORD
IPC: F16L19/065
Filed: 1967-11-09
Abstract: 1,198,489. Pipe couplings. TUNGUM CO. Ltd. 7 Nov., 1968 [9 Nov., 1967], No. 50966/67. Heading F2G. A nut 5 screwed on to a coupling body 1, having a bore 2 for the reception of a pipe 6 and formed with a recess 8 for an 0-ring 9 which encircles the pipe, is provided with an internal wedge surface 10 which co-operates with a longitudinally split pipe-gripping collar 13 to contract the collar on to the pipe, the wedge surface of the collar being relieved, as by providing a groove 17 therein, to decrease the area engaging the nut without decreasing the effective overall length of the wedging surface; alternatively, the area or areas of relief is or are provided in the wedge surface 12 of the nut.
Patent GB-1284745-A (GB)
Title: Improvements in or relating to conveyors
Inventor: MARSHALL GEORGE EDWARD
IPC: B65G15/60
Filed: 1969-10-16
Abstract: 1284745 Endless conveyers LSP ENGS Ltd 28 Sept 1970 [16 Oct 1969] 50966/69 Heading B8A An endless conveyer belt 14 is turned through an angle by means of rollers 8-11 mounted below a slot 7 between the angled ends 5, 6 of belt support plates 1, 3. The rollers 8, 9, which are at an angle α which is half the angle between the plates 1, 3, have adjustably mounted bearings 24, 25 at one end of the rollers. The belt 14 is of woven nylon which may be polyurethane coated and is tensioned by adjustment of end drums 2, 4. The slot 7 is formed between two tubes 17, 18), Fig. 3 (not shown), or by further rollers. The belt 14 passes along the plate 1, through the slot 7, around the roller 8, up through the slot and along the plate 3, around drum 4 and underneath the plate 3, around the rollers 11, 9, 10, over a snub roller (13), Fig. 4 (not shown), and back to the drum 2.
Patent GB-1510689-A (GB)
Title: Preparation of water-soluble cationic high polymer
IPC: C08F220/56
Filed: 1975-12-12
Abstract: 1510689 Preparation of water-soluble cationic polymers SUMITOMO CHEMICAL CO Ltd 12 Dec 1975 [19 Dec 1974 10 July 1975] 51073/75 Heading C3P Water-soluble, high molecular weight cationic polymers are prepared by polymerizing acrylamide and/or methacrylamide, optionally together with one or more quaternary ammonium acrylic ester or amide monomers (as defined by formulas), in an aqueous medium containing 15-70 wt. per cent of an organic solvent selected from acetonitrile, t-butanol, tetrahydrofuran, dioxane and acetone until at least 2 wt. per cent of the monomers have polymerized, and thereafter adding during the polymerization one or more quaternary ammonium monomers as referred to above (which may be the same as or different from any such monomers previously used) and one or more water-miscible organic solvents in sufficient amount to maintain the viscosity of the polymerization mixture within a suitable range. The polymers are useful in the treatment of waste water.
Patent GB-1074390-A (GB)
Title: Improvements in or relating to magnetic head structures for recording and playback
IPC: G11B5/29
Filed: 1964-12-17
Abstract: 1,074,390. Magnetic recording &c. heads. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 17, 1964 [Dec. 23, 1963], No. 51399/64. Heading G5R. A magnetic head comprises glass blocks 1 and 2 provided with optically flat mating surfaces 6 and 7 and with respective recesses 8 and 9 for accommodating the head structure; this comprises a pair of ferrite members 10 and 11 provided with optically flat mating surfaces 14 and 15 and bonded together, e.g. by glass, the member 11 being wider than member 10 so that the head is located by the engagement of surface 15 with surface 6, and an X-shaped spring (Figs. 3 and 4, not shown) is disposed in cavity 22 to ensure such engagement. A plurality of head structures may be accommodated in the blocks 1 and 2 which are bolted together to form a multiple head, Fig. 1 (not shown). The head structures may be maintained at the proper level by a bar 32 fitting in a slot in the block 2 and supporting the lower end of member 11, a shim being interposed if necessary. Alternatively the cavity 22 may be provided with shoulders to support the lower end of member 11, Fig. 6 (not shown).
Patent GB-1048120-A (GB)
Title: Production of highly saponified polyvinyl alcohol
Inventor: MASUDA SHIRO
IPC: C08F8/12
Filed: 1964-12-18
Abstract: Highly saponified polyvinyl alcohol is produced by a process which comprises filtering a slurry of polyvinyl alcohol prepared by conventional alkaline saponification of a solution of polyvinyl acetate, partially drying the resulting cake to remove 1/3 to 2/3 of the volatile constituents thereof, adding 0.0005 to 0.025 moles of an alkaline saponification catalyst to the partially dried cake, and completely drying the cake.  The addition of water or a water/methanol mixture to the cake is said to render the product insoluble in cold water but soluble in hot water.  The addition may be made immediately after filtration, or together with the alkaline catalyst.  Specified catalysts are sodium methoxide and sodium hydroxide.  In examples vinyl acetate is polymerized in methanol in the presence of azodiisobutyronitrile and the product saponified with sodium methoxide, filtered, dried and treated with (1-3) a water/methanol solution of sodium methoxide and (5) a methanol solution of sodium methoxide; a methanol solution of polyvinyl acetate is saponified with sodium hydroxide, filtered, dried and treated with a water/methanol solution of sodium hydroxide; a polyvinyl alcohol filter cake is treated with a water/methanol mixture, dried and treated with (6) a methanol solution of sodium hydroxide and (7) a methanol solution of sodium methoxide; and (8) a continuous method for carrying out the process of Example (1) is described and illustrated.  The products may be spun into fibres.
Patent GB-1490566-A (GB)
Title: Vehicle clutch control systems
IPC: F16D48/04
Filed: 1974-11-29
Abstract: 1490566 Clutch control FRAYMON SAE 29 Nov 1974 [6 Dec 1973] 51713/74 Heading F2L In a clutch control for a motor vehicle wherein a pedal 1 acts through a master cylinder 14, fluid column 10, slave cylinder 4 and linkage 12, 13 on a thrust release bearing 7, the complete pedal travel only moves the thrust bearing 7 sufficiently to just disengage the clutch and thereafter complete separation of the plates of the clutch is effected by a vacuum or compressed air servo-motor 8 controlled by a valve 18 responsive to the pressure in the fluid column 10. As shown, when the pedal 1 has completed its stroke the pressure in the column 10 is sufficient to open the valve 18 which supplies pressure air from a vehicle brake actuating reservoir 15 to the servo-motor 8. Initial movement of a piston 5 of the servo-motor 8 closes an inlet 17 to the slave cylinder 4 and thereafter acts through the fluid in the slave cylinder, the slave piston 6 and linkage 12, 13 on the thrust bearing 7 to separate the clutch plates. The valve 18 is adjustably spring loaded to permit the pressure at which the valve 18 operates to be adjusted to that prevailing when the pedal 1 has completed its stroke. In Fig. 2 (not shown) the slave cylinder 4 is separate from the servo-motor piston 5.
Patent GB-1521167-A (GB)
Title: Sanitary napkin
IPC: A61F13/15
Filed: 1976-12-13
Abstract: 1521167 Sanitary towels C BERG 13 Dec 1976 51924/76 Heading A5R A sanitary towel of soft, liquid-absorbent material comprising a generally flat base portion 6 and a humped portion 2 formed by folding of parts of the base 6 and including two side portions separated by a central portion, the side portions and the central portion together forming the humped portion 2 and lines 3 of weakness therein. The central part of the humped portion being lower than the outer parts formed by the ends of the L-shaped side portions.
Patent GB-1207048-A (GB)
Title: Novel 2-alkyl-4-oxa-steroids and a process for the manufacture thereof
IPC: B23B39/16
Filed: 1968-11-01
Abstract: 1,207,048. 2-Alkyl-4-oxa-steroids. F. HOFFMAN-LA ROCHE & CO. A.G. 1 Nov., 1968 [2 Nov., 1967], No. 51935/68. Heading C2C. The invention comprises compounds of formula wherein m is 1 or 2, R<SP>1</SP> is C 1-5  primary alkyl, R<SP>3</SP>, R<SP>4</SP>, R<SP>7</SP> and R<SP>8</SP> are each H or C 1-8  alkyl, R<SP>5</SP> is C 1-8  alkyl, R<SP>2</SP> is H, R<SP>6</SP> is OH, or R<SP>2</SP> and R<SP>6</SP> together represent an extra bond, Z is carbonyl or C(#-OR<SP>9</SP>)(α-R<SP>10</SP>) wherein R<SP>9</SP> is H or C 1-7  acyl and R<SP>10</SP> is H or C 1-5  hydrocarbyl, and the wavy lines indicate α or #-configurations. The compounds wherein R<SP>2</SP> + R<SP>6</SP> represent an extra bond are prepared by acid cyclization of compounds of formula wherein R<SP>11</SP> is C 1-8  alkoxy, and are converted to the compounds wherein R<SP>2</SP> is H and R<SP>6</SP> is OH by treatment with aqueous acid. The conversion of compounds of Formula I into steroids and the preparation of compounds of Formula II are described as in Specification 1,207,047.
Patent GB-1241308-A (GB)
Title: A process and an apparatus for the incineration of solid refuse and aqueous sewage sludge
IPC: C02F11/13
Filed: 1968-11-04
Abstract: 1,241,308. Incinerators. VON ROLL A.G. 4 Nov., 1968 [8 July, 1968], No. 52231/68. Heading F4B. In a process and apparatus for the simultaneous incineration of solid refuse and aqueous sludge, the sludge 9 is dewatered by heating in the primary side 10 of an evaporator and the dried sludge 11 is carried, e.g. by an endless conveyer 12, to the charging shaft 2 of the incinerator 1 where it mixes with the solid refuse O, the mixture being burnt in the combustion chamber 4 of the incinerator. Heat for the evaporator is derived from the combustion gases 6 from the chamber 4. These may flow directly to the secondary side 7 of the evaporator (as shown) or they may heat a boiler 20 (Fig. 2 or 3) the steam from which heats the evaporator. Noxious fumes from the drying sludge pass through a line 13 to the combustion chamber 4 where they are deodorized by superheating. In modifications described two evaporators are used to dry the sludge and these may be coupled in series (Fig. 2) or in parallel (Fig. 3) in respect of sludge flow. In these arrangements the hot vapours emanating from the drying sludge in one evaporator are used as the heating agent in the other evaporator.
Patent GB-1103019-A (GB)
Title: Grating
IPC: E04F19/10
Filed: 1966-11-28
Abstract: 1,103,019. Gratings. CONSTRUCTION SPECIALTIES, Inc. 28, Nov., 1966 [17, Dec., 1965], No. 53205/66. Heading E1G. [Also in Division D1] A grating comprises a number of H-section support bars 10, having wear strips 24 removably attached to the upper flange 14, the bars being held parallel to each other by key members 28. The webs 16 of the support bars are formed with a plurality of double-keyhote openings to allow passage of cylindrical members 28 having wing flanges 30, 32; the members 28 being rotated to lock the webs 16 in slots 34 in flanges 30, 32.
Patent GB-1280192-A (GB)
Title: A collapsible case made of plastics material
Inventor: BOX THEODOR
IPC: B65D1/22
Filed: 1969-10-30
Abstract: 1280192 Collapsible cases T BOX 30 Oct 1969 53278/69 Heading B8P A collapsible case having side walls 11, 12 hinged to a bottom wall 10 includes locking devices 16 which extend from flanges 15 on opposed walls 12 and which are interengageable with apertures 14 in opposed walls 11. Each locking device 16 is arranged at a specific acute angle (α Fig. 2) with the adjacent side edge of the associated wall 12 and each aperture 14 has a linear edge 17 inclined at the specific angle (α) with the adjacent side edge of the associated wall 11. When the case is erected a channel-like recess defined by the locking device 16 and the flange 15 interlocks with the linear edge 17. The upper edge (21, Fig. 2) of each aperture 14 includes a triangular projection forming a snap lock arrangement. An alternative arrangement for the locking device, Fig. 6 comprises a triangular locking member 32 spaced from the flange 15<SP>11</SP> by a strip-like projection 31 of a width substantially equal to the thickness of the case walls. To lock the walls 11, 12 together, the member 32 is inserted through an aperture 30 in the wall 11, the wall 12 is then rotated outwards until the projection 31 abuts the edge of the aperture 30 adjacent to the side edge of the wall 11 and is snap-locked in position by a projection 34 on the lower edge of the aperture 30. The case may be made in a single moulding operation having all its walls integrally formed or alternatively the walls may be formed separately and joined by hinges.
Patent GB-1178128-A (GB)
Title: Apparatus for Measuring the Reflexion Coefficient of Foils or Plates
IPC: G01N21/55
Filed: 1967-11-23
Abstract: 1,178,128. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 23 Nov., 1967 [26 Nov., 1966], No. 53343/67. Heading H1C. [Also in Division G1] A system for measuring the reflexion coefficient of a low loss or loss-less foil to microwaves, infra-red or light waves incorporates a ring resonator including at least three reflectors A, B, C, defining a ring path for introduced radiation, across which path the foil 8 under test is arranged perpendicularly. Radiation is introduced into the path from a source 9 by a partly transparent mirror 6 or alternatively the path may include a laser medium so that radiation in it may be provided by stimulated emission. Reflection from the foil under test results in radiation circulating in the resonator in both directions, giving two possible resonance modes when the wavelength of the input radiation is suitably related to the path length within the resonator. These two coupled modes produce resonance peaks at slightly different frequencies, and the frequency difference between these is related, inter alia, to the reflection coefficient of the foil, and the resonant frequency in the absence of the foil. The frequency difference is ascertained by adjusting the input frequency so that it passes through the two resonances. The peaks of these are detected at 11 and the corresponding frequencies noted. The detector 11 may be a rectifier diode circuit, bolometer or photodiode. If the source is suitably modulated to provide two sidebands, the two resonances may be determined simultaneously. In the system employing stimulated emission of a laser medium, a sufficiently wide laser line width is used to produce the two resonant frequencies simultaneously in the output. By mixing these frequencies, e.g. by a photodiode, the difference frequency may be derived directly.
Patent GB-1128678-A (GB)
Title: Fluid material transfer apparatus
IPC: B63B27/34
Filed: 1966-11-30
Abstract: 1,128,678. External shoe drum brakes. FMC CORP. 30 Nov., 1966 [28 Jan., 1966], No. 53529/66. Heading F2E. [Also in Division B8] A fluid conduit device for connecting two relatively movable storage tanks such as a ship's tank and a shore storage tank as described in Specifications 1,030,791 and 1,119,719, has a winch for raising and lowering the inner conduit and an associated brake mechanism. The hydraulic winch drive motor shaft 74 is connected to the winch drum shaft 76 by a slip coupling 64 and the brake consists of elements 86, 88 urged together by a spring 100 and released by an hydraulic actuator 108. The brake elements can be locked in the inoperative position by a lockout arm 138 which upon actuation of a handle 122 against a spring 130 and insertion of a pin 126 positions a wide bearing portion 160 between the brake elements to hold them in a disengaged position. Hydraulic and electrical interlocks are described, the hydraulic winch motor being deactivated when the brake is locked in its inoperative position.
Patent GB-1088449-A (GB)
Title: Improvements in or relating to electrical converter systems
Inventor: OLIVER ROY EDWARD
IPC: H02M1/12
Filed: 1965-12-20
Abstract: 1,088,449. Inverting. TRW Inc. Dec. 20, 1965, No. 53849/65. Heading H2F. The Nth harmonic, where N is odd, is eliminated from the output of an inverter by combining waveforms displaced by 180‹/N. In Fig. 1 the transistor oscillator 10 has its 24 kc/s. output divided to 2400 c/s. at 11 and to 1200 c/s. at 14. The output from divider 14 is two rectangular pulse trains in anti-phase, and each of these is further divided at 18 and 56 to give three outputs displaced 120 degrees to each other and also three outputs in anti-phase to the first three. The circuits 19, 21, 22, 23, 24, 26 (described with reference to Fig. 4, not shown) each produce an output if all their inputs are above zero, and drive bi-stable circuits 43, 44, 46 which control transistors in the primary circuit of the output transformer (Fig. 5, not shown).
Patent GB-1311823-A (GB)
Title: Machines for transferring products
IPC: A23G7/00
Filed: 1971-11-22
Abstract: 1311823 Moulding chocolates CARLE & MONTANARI SpA 22 Nov 1971 [27 Feb 1971] 54154/71 Heading B5A [Also in Division B8] Chocolates P are transferred from moulds S to boxes C by a reciprocating suction device B and a rotary suction device A which have an adjacent position, Fig. 3 (not shown), in which the chocolates are transferred from the suckers V A  to the suckers V B . The moulds S are carried on a conveyer T 1  and the boxes C on a conveyer T 2 . The device B is reciprocated parallel to the arrow f 1 , and its mean position relative to the conveyer T 2  is adjustable. The device A is fixed relative to a gear-wheel 5 and is oscillated through 180 degrees by the reciprocation of the gear along a fixed rack 6a.
Patent GB-1304206-A (GB)
IPC: F22G5/12
Filed: 1970-11-17
Abstract: 1304206 Mixing liquid and gas LENINGRADSKY DVAZHDY ORDENA LENINA METALLICHESKY ZAVOD IMENI XXII SIEZDA KPSS 17 Nov 1970 [13 April 1970] 54524/70 Heading B1C [Also in Division F4] Apparatus for reducing and regulating the pressure and temperature of steam comprises a chamber 1 to which steam and cooling water are supplied through respective valves 7, 19 actuated together by cranks 9, 13, the crankshaft 10 being rotated by a device 12 responsive to the pressure in chamber 1. Change of temperature in the chamber is sensed by a device 17 which moves the roller 15 which constitutes the fulcrum of the lever 15, whereby the relative opening of the valves 7, 19 and consequently the steam/water ratio is varied to maintain the temperature in chamber 1 constant.
Patent GB-1143240-A (GB)
Title: Improvements in or relating to aerated gas burner assemblies
Inventor: WESTERMAN ALBERT
IPC: F23D14/26
Filed: 1966-12-07
Abstract: 1,143,240. Gas burners. GEO. BRAY & CO. Ltd. 17 Nov., 1967 [7 Dec., 1966], No. 54805/66. Heading F4T. An aerated gas burner comprises a gas injector 3, gas/air mixing tube 2 and manifold 1 which distributes the mixture to burner heads 6, each head having a set of main flame-ports 7 and auxiliary flame-ports 10 spaced around a shoulder of the head. The heads are mounted on adapters 11 screwed into the manifold top wall 15 and have a central bore 16 which supplies the gas/air mixture directly to ports 7 and via radial ports 17 and annular space 18 to ports 10. In a first modification the adapter 11 is riveted to the manifold and in a second modification the mixture to ports 10 passes between the adapter and head 6.
Patent GB-1378762-A (GB)
Title: Shielding tape earthing device for high voltage cables
IPC: H01R4/64
Filed: 1971-11-25
Abstract: 1378762 Electric couplings AMERACE ESNA CORP 25 Nov 1971 [3 Feb 1971] 54866/71 Heading H2E  A device for attaching an earthing conductor 54 to the metal shield 24 of a cable comprises a conductive band 50, e.g. of copper strip which extends around at least a portion of the outer periphery of the shield 24 and is provided with axially extending corrugations 52 which allow the band to flex resiliently in a radial direction to allow for thermal variations in cable diameter. Peaks 62 are in electrical contact with shield 24, and the earthing conductor 54 is affixed within a groove e.g. by brazing or soldering. An elastomeric sleeve 44, preferably made conductive, surrounds the band 50. The band is clamped into contact with the shield by means of strap 46. A housing 72 of conductive elastomeric material may surround the earthing device, a collar 84 being provided for the earthing rod 54 to pass through. As shown in Fig. 2, the ends of the housing may respectively grip the cable jacket and the cover of a cable connector to provide a water-tight cover. In an alternative embodiment the housing is omitted, the sleeve 44 being extended in both directions from the band 50; the ends respectively gripping the cable and connector cover as before (Figs. 6 and 7, not shown).
Patent GB-1370788-A (GB)
Title: Peak detector
IPC: H03K5/1532
Filed: 1971-11-26
Abstract: 1370788 Transistor peak detector circuits INTERMEDCRAFT CORP 26 Nov 1971 [27 Nov 1970] 54998/71 Heading H3T  The peaks of an input signal V IN  (Fig. 2A, not shown) are detected by feeding it to a differentiating transformer 42 whose output (2C) changes in polarity at the peaks so causing a circuit 41-58 to switch over and generate a square wave (2D). The input V IN  is from a magnetic tape reader and is amplified by an amplifier 40 having a feedback resistor 46 which is much larger than a resistor 45 connecting the primary 42a to ground. The split secondary 42b, 42b<SP>1</SP> drives respective emitter followers 52, 53, connected to respective inputs of an amplifier 41, across which limiting diodes 56, 57 are connected. Positive feedback R58 causes rapid switching of the output level B when the polarity across the inputs changes. An offset (V EE ) delays (T4) switching in 41 until the differentiated signal (2C) has changed by a specific amount in the new polarity, in order to improve noise immunity.
Patent GB-1211702-A (GB)
Title: Fine particles
Inventor: BARNES WILLIAM RICHARD
IPC: C01B33/18
Filed: 1966-12-08
Abstract: 1,211,702. Submicron silica particles. UNILEVER Ltd. 6 Dec., 1967 [8 Dec., 1966], No. 55110/66. Heading C1A. Submicron silica particles are made by vaporizing a silica feed in a plasma generator and subjecting the tail flame to a controlled quench in the presence of a gas which is non- reactive with respect to the silica. The plasma generator may be powered by an R.F. heater or an arc discharge, the feed being either through the arc or into the plasma generated thereby. The silica feed may be sand. The plasma gas may be oxygen and argon and the quench gas air. The particles produced have less than 2% by volume exceeding 500 millimicrons in size and a bulk density between 20 and 500 gms. per litre. The silica may be used as a rubber reinforcer.