baber/WOPTO huggingface dataset:
Patent GB-795112-A (GB)
Title: Tobacco smoke filter
IPC: A24D3/08
Filed: 1955-02-10
Abstract: 795,112. Tobacco-smoke filters. AMERICAN VISCOSE CORPORATION. Feb. 10, 1955 [Feb. 23, 1954], No. 3996/55. Class 130. A mass containing thermoplastic organic fibres, Fig. 2, carrying an electric charge is formed into a filter, whose shape is fixed by bonding together a substantial number of the fibres at their points of contact. The fibres may be formed into a web 14, Fig. 4, folded, rolled or twisted to form a cylindrical mass 15 in a die 16 electrically heated to cause fusion of at least the surface fibres, the mass 15 being subsequently subdivided into individual filters. Alternatively the web may be simply rolled into a cylinder, and subjected to heat or have applied thereto a surface binder such as a solution of a resin, cellulose derivative, glue, gelatine, casein or water-soluble cellulose ether, being again subsequently sub-divided. A loose mass of the fibres may be enclosed in a cylindrical tube of paper, metal foil or regenerated cellulose and heated to bond the surface fibres to each other and to the tube, the resulting unit being usable in cigar or cigarette holders or pipe-stems, or in cigarettes, when the tube may be the cigarette paper itself or a sleeve insertable in one end thereof. Cigarettes may also have preformed filter masses inserted in one end thereof and bonded to the cigarette paper by a second heat treatment. The fibres vary in maximum diameter among themselves from 0.25 to 10 microns and have tapering ends to give more than a twofold variation in diameter along their lengths, and are formed with substantially permanent positive or negative charges by spraying in a charged field from a solution or molten mass of natural or synthetic resins, e.g. vinyl resins, acrylic resins, polyamide resins or polyethylene resins, of cellulose derivatives, e.g. cellulose esters, cellulose ethers, cellulose ester-ethers, or of compatible mixtures of resins and cellulose derivatives. The fibres form electrets and may have mixed therewith non-electret fibres derived from wood, straw, sisal or hemp, from regenerated cellulose formed by extrusion of viscose, cuprammonia or dissolved cellulose, from gelatine, casein, zein or peanut proteins, from asbestos, glass or rock wool or from mixtures thereof. Specification 794,725, [Group VIII], is referred to.
Patent GB-524868-A (GB)
Title: Improvements relating to electrically operated vibrator apparatus
IPC: H02K33/08
Filed: 1939-02-07
Abstract: 524,868. Reciprocating motors WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. Feb. 7, 1939, Nos. 4000 and 20027. [Class 35] The coil 1 of a vibrating electric motor operating, for example, a screen or tool, is supplied from an alternating current source RS and a source of direct current, is connected across a condenser or secondary battery, connected between the coil and the source RS. The source of direct-current may comprise a rectifier bridge 6 connected across a condenser 2, and supplied from a transformer 4 with variable tappings 7, 8, 9. Alternatively the vibrator coil 1 may be used as an autotransformer or provided with a secondary coil for supplying the rectifier. A resistance may be provided for adjusting the direct-current.
Patent GB-899203-A (GB)
Title: Improvements in or relating to reinforced concrete members
IPC: E04C5/20
Filed: 1960-02-04
Abstract: 899,203. Reinforced concrete. CENTRAL ELECTRICITY GENERATING BOARD, GLOVER, M. N. J., and TUCKER, E. J. [Representatives of GLOVER, 1.], and PARKER J. Jan. 23, 1961 [Feb. 4, 1960], No. 4043/60. Class 20(4) In a reinforced concrete member a reinforcing bar 11, Fig. 1 carries spaced positioning blocks 12 threaded thereon, each block 12 being formed with at least two flat faces disposed in separate planes which faces lie flush with the outer surface of the reinforced concrete member. A block 12 may be provided with a bolt 42, Fig. 6, arranged to project from the surface of the reinforced concrete member for the attachment of a bracket or other fitting thereto.
Patent GB-114454-A (GB)
Title: Improvements in Boilers for Heating by Hot Water or Steam.
Inventor: HERRING EDGAR
IPC: F24H1/32
Filed: 1917-09-21
Abstract: 114,454. Herring, E. Sept. 21, 1917. Sectional boilers.-Each section is formed with an extension providing a water or steam space, the centre line of which is out of register with the centre line of the section, so that, when the sections are assembled, the extensions of the alternating sections overlap one another over the full width of the fire-box. In the boiler shown, extensions h project from the tops of the sections g and longitudinal flues p are provided at the sides of the fire-box. The sections are secured to upper and lower boxes a, b by bolts passing through flanges k around the inlet and outlet openings in the sections. The extension on the back section is carried down to the level of the fir-bars and has waterway projections or ribs i on its inner face.
Patent GB-1209746-A (GB)
Title: Improvements in or relating to vehicle suspensions
Inventor: NICHOLLS LAWRENCE GEORGE
IPC: F16F9/18
Filed: 1966-12-15
Abstract: 1,209,746. Strut-type suspensions. GIRLING Ltd. 7 Dec., 1967 [15 Dec., 1966; 27 Jan., 1967], Nos. 56142/66 and 4164/67. Heading B7D.  A suspension strut for a vehicle comprises a body tube T carrying a stub axle 5, a guide tube 13 concentrically located in the body tube T, and a telescopic damper 10 having its piston rod 12 connected to the lower end of the body tube T and its cylinder guided for axial movement relative to the guide tube 13, the space between the guide tube 13 and the body tube T serving as a reservoir for lubricant which lubricates the interior of the guide tube. The lubricant is injected into the body tube T through a hole closed by a plug 11 and passes into the guide tube 13 through apertures 21. The guide tube 13 has a bottom fitting 16 located at the bottom of the strut and a top fitting 14 screwed into the tube T. The piston rod 12 is screwed into the bottom fitting 16, and the cylinder 11 slides in the top fitting 14 and also carries a bearing collar 17 which slides in the tube 13. An existing strut may be modified according to the invention by means of a conversion bit comprising the damper 10, the guide tube 13 with the fittings 14, 16, and the bearing collar 17. In a modification, Fig. 2 (not shown), a ring locates the bottom of the guide tube in the body tube. In another modification, Fig. 3 (not shown), a thrust bearing at the bottom of the piston-rod permits turning of the piston relative to the body tube.
Patent GB-516558-A (GB)
Title: Improvements in or relating to tool-grinding machines
IPC: B24B3/18
Filed: 1939-02-08
Abstract: 516,558. Grinding reamers &c. DECKEL, F. Feb. 8, 1939, No. 4178. Convention date, March 5, 1938. [Class 60] A tool grinding machine, e.g., for grinding reamers, comprises a base 1 carrying in a standard 2 a cup grinding-wheel 4, the base also supporting a table 5 movable parallel to the axis of the wheel 4 and having thereon a turntable 6a slidably supporting a carriage 7, which may be fixed in desired position by stops 27 and a projection 28. On the carriage 7 is a pillar 8 adjustable on its base 8a both about a vertical axis and in the longitudinal direction of the carriage 7, and slidable on a vertical slideway on the pillar, by means of a screw 11, is a carrier 9. On the carrier is mounted a member 13, adjustable about a horizontal axis 14 and holding, by means of an axle 15 an angularly adjustable bed 16 for the work carrier 17, which is in the form of a carriage slidable on the bed 16 and can be fixed in desired position by stops 37 and a projection 38. The carrier 17 has thereon a rotatable clamping device 18 and a tailstock for supporting the work; parallel work is ground by movement of the carrier 17 after adjustment of the devices 6a, 8a and tapered work is ground by movement of the carriage 7.
Patent GB-984982-A (GB)
Title: An arrangement for measuring direct current, and/or for producing a signal in dependence upon the value of a direct current
IPC: G01R15/20
Filed: 1962-02-02
Abstract: 984, 982. Current measurements. SIEMENSSCHUCKERTWERKE A.G. Feb. 2, 1962 [Feb. 2, 1961], No. 4192/62. Heading G1U. Apparatus for measuring a direct current flowing in a conductor 1 comprises first and second Hall plates 3, 4 lying respectively in the magnetic fields produced by a magnetic yoke 2 surrounding conductor 1 and by a winding 6 in the feedback circuit of an amplifier 5, the arrangement being that the Hall plate voltage outputs become equal and opposite, the current through winding 6 as indicated on meter 10 then being equal to or proportional to the current to be measured. Equal or proportional control voltages are fed to the Hall plates from secondaries 7, 8 of a transformer 9.
Patent GB-949548-A (GB)
Title: Improvements in and relating to timers
IPC: D06F39/00
Filed: 1960-01-21
Abstract: 949,548. Time switches. CONTROLS CO. OF AMERICA. Jan. 21, 1960 [March 16, 1959], No. 4301/62. Divided out of 949,542. Heading H2B. A timer as disclosed in Specification 949,542 has a fast drop slow-rise cam 41 operating a pawl 52 to drive a ratchet wheel 34 at the latter which being on a shaft common to a cam bank that constitutes a programme switch. The use of such a cam allows a spring 58 to be extended gradually and thus only a low torque motor is required to drive the assembly. Specifications 949,545, 949,546 and 949,547 also are referred to.
Patent GB-1356915-A (GB)
Title: Froth flotation
IPC: B03D1/06
Filed: 1972-01-29
Abstract: 1356915 Froth flotation SOQUEM 21 Nov 1972 [29 Jan 1972] 4307/72 Heading B2H An ore containing relatively small amounts of columbium (niobium)-bearing minerals and relatively large quantities of gangue materials is beneficiated by grinding the ore, subjecting an aqueous pulp of the ground ore to froth flotation in the presence of a cationic collector of the amine type, and of a modifying agent which provides a source of free oxalate ions and is selected from the group consisting of oxalic acid and oxalate salts, forming a concentrate rich in the columbium-bearing minerals and a columbium-lean tailing and collecting the concentrate. The columbiumbearing mineral may be pyrochlore. The cationic collector may be an amine or a diamine. HF and CaCl 2  may be used as further modifying agents in the process. The flotation process is carried out in an acid medium and acids such as HF, H 2 SO 4 , HC1 and H 3 PO 4  may be added as pH modifier. The gangue materials may include mica, pyroxene, nepheline, melilite, plagioclase; minerals such as ilmenite, hematite, magnetite, apatite, fluorite, zircon, sulphides and barite; and carbonates such as dolomite, calcite, ankerite and siderite. These gangue materials may be depressed by the addition of a suitable gangue depressant such as caustic starch, sodium silicate, phosphoric acid and lactic acid. The carbonates may be removed by flotation before or after fllotation of the columbium bearing minerals. The sulphides, e.g. pyrites, may be removed by a flotation stage using a xanthate, e.g. potassium amyl xanthate, as a collector. Flowsheets of two embodiments of the process and examples are given.
Patent GB-1254880-A (GB)
Title: Glycol solutions of germanium dioxide
IPC: C08G63/86
Filed: 1968-11-22
Abstract: 1,254,880. Polycondensation catalysts. KURARAY CO. Ltd. 22 Nov., 1968 [29 Dec., 1967], No. 4314/71. Divided out of 1,254,879. Heading B1E. Solutions of GeO 2  in a glycol useful in the polycondensation of bis (#-hydroxyethyl) terephthalate have also dissolved therein an alkali metal, or an alkali metal hydride, hydroxide, oxide, sulphide, alcoholate or phenolate or an alkali metal salt of an acid other than one containing phosphorus. The solutions are prepared by mixing the 3 components below l00‹C with the atomic ratio of alkali metal to Ge of 0.5:1-5.0:1 or of 0.5:1-8.0:1 if the GeO 2  and glycol are prereacted and heating to a temperature such that the GeO 2  becomes at least 90% dissolved. Preferably the alkali metal or alkali metal compound is dissolved in the glycol before adding the GeO 2 . Many alkali metal compounds are specified.
Patent GB-437565-A (GB)
Title: Improvements in devices for the tripping and release of movable members
IPC: D06F67/10
Filed: 1935-02-11
Abstract: 437,565. Locking levers; machinery guards. CORTEEN, J. J., The Homestead, Oakhill Road, Putney, London, WILKINSON, P. S., 49, Sidney Road, St. Margaret's Twickenham, Middlesex, and HUNT & PARTNERS, Ltd., M., 14, Victoria Street, Westminster. Feb. 11, 1935, No. 4341. [Classes 80 (iii) and 80 (iv)] In a device for tripping and releasing a movable member, a control lever 1 or equivalent member is connected at 2 to a clutch, switch, valve or other means for starting and stopping machinery. Starting is effected by moving the lever 1 against a spring or other restoring force to the position shown in Fig. 1 where a block 4 on the lever is engaged by a similarly shaped block 5 on the end of a rockable trip shaft 3, Fig. 3. Each block has holding faces 6, 7 and cam faces 8, 9. When shaft 3 is rotated, the cam faces force the blocks apart so as to free the lever which is then pulled back by the restoring force to stop the mechanism. The blocks are forced together in the position shown in Fig. 1, by the inherent " spring " of the lever. In a modification the cam faces 8, 9 are of a curved form produced by chamfering the corners of the blocks. In a further modification the faces 6, 7 are inclined so as to increase the holding effect between the blocks. The trip shaft 3 may be actuated by a safety guard, e.g. in connection with laundry calendering machines as described in Specifications 437,563. and 437,564, [both in Group VIII].
Patent GB-267103-A (GB)
Title: Improvements in or relating to tubular weels or fish and eel catching devices
IPC: A01K69/06
Filed: 1927-02-16
Abstract: 267,103. Toppe, F. Nov. 4, 1926, [Convention date]. Eel traps.-Traps of the type having conical entrances e at the ends of a cylindrical cage a are furnished with additional conical entrances f in the sides. An elliptical hoop h may be fitted centrally of the lateral openings and its projecting portions which are covered with mesh serve to deflect the fish into the lateral openings.
Patent GB-740379-A (GB)
Title: Improvements in or relating to the treatment of food
IPC: A23L5/20
Filed: 1953-02-17
Abstract: Improvement in the storage quality of foods which contain an aldose and a substance capable of reaction with the aldose to form undesired products, e.g. egg constituents, coconut, potato and cereal foods, is effected by introducing free oxygen into contact with the food in the presence of water and incorporating an oxidase for the aldose, the aldose being thereby converted to the corresponding sugar acid.  The oxygen is preferably provided by addition of hydrogen peroxide together with catalase; with hydrogen peroxide there is the additional advantage of destruction of micro-organisms.  According to an example concerned with application of the process to the production of dried egg white which does not turn brown on storage, the whites of freshly-broken eggs are adjusted to pH7 by addition of hydrochloric or lactic acid, an enzyme solution possessing glucose oxidase activity and catalase activity is added, and hydrogen peroxide is mixed in gradually.  Specification 626,848 is referred to.
Patent GB-1215790-A (GB)
Title: Packages
Inventor: STOCKDALE WILLIAM DONALD
IPC: B65D5/68
Filed: 1968-03-08
Abstract: 1,215,790. Portable containers. ILLINOIS TOOL WORKS Inc. 8 March, 1968 [9 March, 1967], No. 4408/70. Divided out of 1,200,696. Heading B8D. A container has octagonal walls with a horizontal rim 14 to which a square lid 20 is heat sealed. The four projecting triangular portions of the lid can be bent downwardly when picking up the container.
Patent GB-107945-A (GB)
Title: Improvements in or relating to Atmospheric Gas Burners.
IPC: F23D14/10
Filed: 1917-03-27
Abstract: 107,945. Fletcher, Russell, & Co., Fletcher, T. W., and Banks, W. March 27, 1917. Atmospheric gas burners.-In a gasfire burner of the kind described in Specifi c a t i o n 18896/94, [Class 126, Stoves &c.] and 25979/08, a slotted diaphragm d is cast or formed integral with the removable nozzle cap b, and the chamber so formed is divided bv partitions f into separate compartments, one for each burner nozzle.
Patent GB-126982-A (GB)
Title: Improvements in the Mounting and Driving of Propeller Shafts.
Inventor: BARBAROU MARIUS JEAN BAPTISTE
IPC: F16C21/00
Filed: 1916-03-25
Abstract: 126,982. Barbarou, M. J. B. March 25, 1916. Propelling.-In aerial propellers mounted on the forward part of the secondary or cam shaft, the propeller shaft o is fitted forward with a plain bearing a and a ball bearing b, at its centre with a plain bearing c, and at its rear part with a plain bearing d and thrust ball bearing f. The driven wheel g is screwed and bolted, as shown, to the shroud h of the shaft o.
Patent GB-1139418-A (GB)
Title: A method of producing core yarn using an elastic thread as the core
IPC: D01H5/86
Filed: 1966-02-02
Abstract: 1,139,418. Core-yarn; drafting apparatus. KURASHIKI RAYON K.K. 2 Feb., 1966 [21 April, 1965], No. 4561/66. Headings D1D, D1F and D1W. Core yarn is made in a spinning-frame having a drafting-head with a pair of apron rollers by simultaneously feeding to the rear of the apron rollers, an elastic thread and a non-elastic roving of larger diameter than the thread whereby the roving is drafted and the thread remains undrafted. Drafting of the roving without drafting the thread is ensured by spacing the apron rollers or providing a recess in one of them, the depth of the space or of the recess being greater than the diameter of the thread and smaller than the diameter of the roving. In Fig. 1, rovings 9, 9<SP>1</SP> are fed together into the drafting-head comprising five sets of rollers. The elastic thread is fed through tension-guides 7, 7<SP>1</SP> to the rear of the penultimate pair of rollers 4, 41 which are provided with aprons 5, 5<SP>1</SP>. The upper roller has a circumferential recess (10, Fig. 2, not shown). The roving(s) may be of natural or artificial fibres, and the elastic thread may be a monofilament of polyolefine or polymethane polymer diol, an organic isocyanate and a diol chain-extender (examples given). The polyurethane has a molecular weight between 200-8,000 and a melting point below 80‹C. The filament is stretched and heat treated at above 50‹C for between 1 second and 30 minutes whereby the elongation is set to less than 150%; after which it may be similarly heat treated before it is spun. It is then supplied to the drafting head at a tension of between 0.8 and 1.3 grammes per denier.
Patent GB-1104575-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/16
Filed: 1966-02-02
Abstract: <PICT:1104575/C1/1> In the float-glass process at least one partition 15 dips into a liquid seal over the glass sheet.  Both inlet and outlet of the glass ribbon may have such seals.  Less inert gas wastage, higher usable pressures and the utilization of differing atmospheres in spaces above the bath are possible.  Carbon rollers 16 guide the ribbon under the partitions.  Carbon pieces may restrain the sides of the ribbon.
Patent GB-1385334-A (GB)
Title: Gripping device for doffing yarn packages
IPC: D01H9/00
Filed: 1972-02-01
Abstract: 1385334 Grippers SCHUBERT & SALZER MASCHINENFABRIK AG 1 Feb 1972 [5 Feb 1971] 4629/72 Heading B8H [Also in Division D1] A gripping device for doffing yarn packages comprising an interrupted ring-like element for gripping the outer surface of a package core and drive means connected to the element to contract the ring to grip the core. As shown, Fig. 1, the device comprises interrupted-ring- like element 22 pivotally connected by pins 230, 240 to levers 23, 24 pivotally mounted on pins 231, 241. The interruption is maintained open by compression spring 25. To contract the element to grip a core a cam 31 is passed between levermounted rollers 232, 242 to move pins 230, 240 towards one another. Element 2 comprises flexible non-elastic portion 20, e.g. a strip spring, and elastic portion 20<SP>1</SP>, e.g. of plastics material or of rubber vulcanized to the strip spring. Arm 1 is raised by drive means to doff the package. In a second embodiment (Fig. 3, not shown) the element is formed from two C-shaped halves, one end of each half being pivotally connected to the levers and the other end being pivotally connected to a stationary housing. In a third embodiment, Fig. 4, the element comprises interrupted elastic gripping rings 28, 29 and interrupted non-elastic rings 28<SP>1</SP>, 29<SP>1</SP>. The rings are connected as indicated by lines A. Gear wheels are connected with ends 282, 292 and rotation of the gear wheels in the directions of arrows P1, P2 by means of racks ensures that ends 281, 282 and 291, 292 are moved towards one another.
Patent GB-647421-A (GB)
Title: Improvements in and relating to boring bars
IPC: B23B29/02
Filed: 1948-02-17
Abstract: An alloy solder for use in brazing nickel steel inserts in sintered hard metal carbide boring bars (see Group XXII), comprises about 50 per cent silver, 15.5 per cent copper, 16.5 per cent zinc, and 18 per cent cadmium.
Patent GB-556612-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q1/32
Filed: 1942-04-09
Abstract: 556,612. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BAKER, G. T. April 9, 1942, No. 4649. [Class 40 (iv)] In a repeater of the Stone bridge type limiting devices LD1, 2 are provided in series with the speech condensers QA, QB for the purpose of absorbing surges generated by the discharge of the condensers during dialling. The devices may be beads of resistance material having a high positive temperature coefficient, such as finely divided chromium oxide, or they may be small electrolytic cells arranged to polarize rapidly when unidirectional current passes through them.
Patent GB-1300821-A (GB)
Title: Improvements relating to the compacting of particulate material
Inventor: BECK ERICH
IPC: B65G53/60
Filed: 1970-01-30
Abstract: 1300821 Pneumatic conveyers; dispensing measured quantities of granular material INGENIEURBUREAU DR BREHM AG 30 Jan 1970 4670/70 Headings B8A and B8N [Also in Division B1] Apparatus for maintaining constant the level of material in a charging container 1 used in conjunction with a material consuming device e.g. an extender 2, comprises a material conveying conduit 10 through which the material is fed from a supply container (not shown) to the interior of the charging container 1 under suction from a pipe 8 and suction blower 9. The consuming device 2 is connected to the container 1 and has a conveying worm 4 above which is a locking slide member 5 at the container outlet. In operation, when both the container 1 is intially empty the slide member 5 is closed and the suction blower 9 sucks material into the container 1 through conduit 10. When the level of material reaches a sieve 12 the feed of material is stopped, the slide member 5 is opened and material enters the device 2 which is then put into operation and the level in the container 1 drops below the outlet 11 of the conduit 10. The blower 9 restarts and material is again fed into the container 1 until the level reaches the sieve 12 when the process described above is repeated. In an alternative embodiment, Fig. 2 (not shown), the material conveying conduit (19) enters tangentially of the container and a suction tube (20) which enters the top of the container has an extension in the form of a sieve basket (21) which, when covered by the material, stops the flow of material to the container as described in relation to the first embodiment above.