baber/WOPTO huggingface dataset:
Patent GB-697813-A (GB)
Title: Improvements relating to protective apparatus for direct current transmission lines employing valve converters
Inventor: BUSEMANN FELIX
IPC: H02H7/127
Filed: 1951-03-22
Abstract: 697,813. Converting. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. March 12. 1952 [March 22, 1951No. 6917/51. Class 38 (ii). In a D.C. power transmission system which is fed from A.C. line 11 through a rectifying arrangement which may comprise mercury vapour converters 1-6 connected in double three phase bridge arrangement between D.C. line 16 and earthed centre point 19 and a similar arrangement (not shown) between the centre point and the other D.C. line, and which feeds an inverter arrangement at the distant end, a sudden rise of line current is arranged to block the rectifier grids. Sudden rise of current induces a voltage across the smoothing choke 40 and in a winding 42 coupled thereto, and closes a relay VR the coil of which is connected across a potentiometer 46 supplied from winding 42 through a filter 43, 44 which blocks normal ripple. The coil of main relay MR, which is in series with the contacts of relay VR, and the normally-closed contacts of timing relay TR and (52) of anti-hunt relay AH across D.C. supply 47, is energized and closes contacts 48, 50, 49, respectively, to block the rectifier grids to complete a holding circuit for relay MR excluding the contacts of relay VR, and to energize relays TR and AH. Relay TR opens after a set delay to de-energize relay MR and allow the rectifier grids to refire. While the voltage across reactor 40 persists relay MR recloses and the cycle is repeated, until after a predetermined number of operations relay AH operates closing hold in contacts 53 and opening contacts 52 to break the supply to relay MR permanently until reset switch 54 is opened. In a modification, relay VR is replaced by a triode which is fired by a voltage on its grid derived from a transformer across the smoothing choke, whereby one resis. tance is shunted to develop voltage across another. This voltage may be used to block a firing valve in the control unit 25 for the grids of the mercury vapour rectifiers. Specification 698,438 is referred to.
Patent GB-893487-A (GB)
Title: Improvements in or relating to arrangements for conveying items within a tubular guide
Inventor: STEEN JAMES HARRY
IPC: B65G11/12
Filed: 1959-02-27
Abstract: 893,487. Bowden and like mechanisms. GENERAL ELECTRIC CO. Ltd. Feb. 26, 1960 [Feb. 27, 1959], No. 6938/59. Class 80 (3). [Also in Group XL (a)] A chain for moving nuclear fuel elements in a tubular guide for performing a refuelling operation on a reactor comprises alternate links 1, 2 connected together by members 5, the links 1, 2 and members 5 being of hollow rectangular section to permit the passage therethrough of electric cables or compressed air pipes. Each member 5 has welded thereto two pairs of pivot pins 6, 7, the pins 6 extending through a pair of ears 3 provided at the ends of each link 1 and the pins 7 similarly extending through ears 4 on the links 2. Since the axes of the pins 6, 7 are mutually at right-angles, a universal joint is provided. Rollers 8 on the pins 6 are engaged by sprockets for driving the chain, the chain being guided in its tubular guide by four ball-bearings 15 provided on each link 1, 2. The Provisional Specification describes a modified chain with reference to drawings.
Patent GB-810458-A (GB)
Title: Improvements relating to infinitely variable transmission gears
IPC: F16H47/08
Filed: 1955-03-09
Abstract: 810,458. Hydromechanical variable-speed gear. WEINRICH, H. March 9,1955 [March 9, 1954], No. 6965/55. Class 80 (2). [Also in Group XXIX] A turbo converter is driven through a torque-splitting planet gear and comprises a pump 8 and turbine 10 which rotate in opposite directions, the turbine blades being disposed within the pump blades. As shown in Fig. 1 the working circuit includes guide blades 15 fast with a stationary casing 9 and guide blades 16 which are freely rotatable under starting conditions and which are held stationary by a brake for normal running. The brake ring 18 is applied by springs, and is released by the pressure within the working circuit which acts through ducts 20 on pistons 19 fixed to the ring. In the modifccation, of Fig. 2 guide blades 21 are axially displaced to within the stationary core of the converter under starting conditions. Under starting conditions the pressure in the working circuit at the guide blades 15 is great enough to open a valve 23 against the pressure between the turbine and pump, and the pressure on the shell of guide blades 21 moves them into the core against spring pressure. Forward and reverse drive.-An input shaft 1. drives a ring gear 5 of the planet gear, the planet carrier of which is fast with an intermediate shaft S. The sun gear is fast with the pump 8. A gear wheel 31 is splined to an output shaft 29, and for forward drive the gear 31 is in its lefthand position in which it has a toothed connection 32 with a disc 35 fast with the intermediate shaft and in which it engages a gear on a shaft 34 geared to the turbine. For reverse drive the intermediate shaft S is held stationary by a pawl engaging disc 35, and gear 31 is moved to its right-hand position in which it engages a gear on the shaft 34 via an idler gear. Making up leakage.-A gear pump 37 supplies make-up liquid to the working circuit through ducts in the intermediate shaft S, and some of the liquid escaping from the working circuit collects in annular chambers in the bearings of the pump and turbine and is returned to the circuit through these ducts.
Patent GB-1158054-A (GB)
Title: Method Of Removing Impurities From Fibres
IPC: D06B13/00
Filed: 1967-02-14
Abstract: 1,158,054. Removing impurities from fibres. MAGYAR VISCOSA GYAR. 14 Feb., 1967 [19 Feb., 1966], No. 7018/67. Heading D1L. Impurities are removed after fibre formation by feeding the fibres through a vessel containing a liquid which is excited with compressional vibrations having an intensity which is above the cavitation level of the liquid. Preferably the fibres are formed into a cable, e.g. a flat band, before being fed to the vessel which may contain water in the case of the removal of monomer from polyamide. The water prefarably becomes countercurrent to the direction of movement of the fibres. The fibres are stretched before, after, or while they are being led through the acoustic field.
Patent GB-125768-A (GB)
Title: Improvements in and relating to Fire Boxes for Burning Pulverulent Fuel.
IPC: F23C99/00
Filed: 1918-04-26
Abstract: 125,768. Marks, E. C. R., (Fuel Saving Co.). April 26, 1918. Pulverulent-fuel furnaces.-The fuel is supplied by a steam or air blast at 48 to a depressed auxiliary combustion chamber 44 beneath the firebox of a locomotive or other boiler, which is fitted with a deflecting arch 46. Air is supplied through passages 50 in the rear wall and delivered through openings 53 beneath the rear of the arch, which is thus protected from the action of the flame. Air is also supplied through openings 55 and 56 in the side walls, regulating dampers being provided which may be connected together so as to be operated simultaneously. Air may also be supplied at the front through openings 54.
Patent GB-1486691-A (GB)
Title: Safety barriers for road traffic
IPC: E01F15/06
Filed: 1975-02-19
Abstract: 1486691 Crash barrier ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SA 19 Feb 1975 [19 March 1974] 7084/75 Heading E1G The guard rail 2 of a crash barrier is connected by a plurality of spacers 5 to a further rail 1 mounted on posts 4. The spacers 5 are pivoted at 7 to the further rails 1 and are connected to the guard rails by points of weakness 6. The posts 4 have a breaking point 8. The guard rails 2 are foam-filled.
Patent GB-126121-A (GB)
Title: Improvements relating to Gas Retorts.
Inventor: BANCROFT FRANCIS JAMES
IPC: C10B1/04
Filed: 1918-04-27
Abstract: 126,121. Bancroft, F. J., and Hansford, J. B. April 27, 1918. Charging.-In gas retorts of the vertical type in which the coal &c. is charged into the lower end and forced upwards by a power actuated device,. the coal &c. is fed through shoot a and forced by a piston r into engagement with a feed screw l, working in a chamber h. The gases generated are withdrawn through openings j in the chamber h into a surrounding chamber i and conduit k.
Patent GB-432989-A (GB)
Title: Improvements in or relating to cathode-ray tubes for the production of pictures in colours, particularly for television and like systems
IPC: H04N9/22
Filed: 1934-03-06
Abstract: 432,989. Television receivers; cathoderay tubes. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. March 6, 1934, No. 7164. Convention date, March 6, 1933. [Classes 39 (i) and 40 (iii)] In colour television, a plurality of complete images is formed by a single cathode-ray on a screen or screens within a single tube, the said images being caused to overlap in effective superposition as regards an observer. The fluorescent substances, e.g., calcium tungstate, zinc silicate, zinc phosphate, may be provided on separate screens or on adjacent areas on the same screen, The cathode-ray may be adapted to scan a line on successive screens or to scan the whole of one screen before passing, at right angles to the scanned strip, to the next. Velocity modulation may be employed and the controlling electrostatic fields may be located near the cathode or the screen. The Specification as open to inspection under Sect. 91 states also that a separate cathode-ray may be associated with each fluorescent screen. Virtual images of the various pictures may be superimposed by semi-reflecting surfaces and lenses. In other forms, a fluorescent screen giving white light is associated with colour filters or a mosaic screen is used. This subject-matter does not appear in the Specification as accepted.
Patent GB-924781-A (GB)
Title: Improvements in or relating to methods of manufacturing gramophone records
IPC: G11B3/70
Filed: 1962-02-23
Abstract: 924,781. Gramophone records. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 23, 1962 [Feb. 27, 1961], No. 7165/62. Class 40 (2). In a method of manufacturing a gramophone record in which a negative 2 is obtained from the original, Fig. 1, by electro-plating, the effect of the ridges formed on the groove during recording, and producing corresponding grooves in the negative, is reduced by providing the said negative 2 with a deposited layer 3 between 1 and 2 Á thick from a bright plating bath with filling power, such as described in Specification 741,096 (Group XXXVI).
Patent GB-1027497-A (GB)
Title: Process for the manufacture of graft copolymers
IPC: C08F259/04
Filed: 1963-02-22
Abstract: Graft polymers are made by polymerizing in a first stage in aqueous emulsion vinyl chloride, or a mixture thereof with one or more copolymerizable compounds, until 60 to 85% of the monomeric material is polymerized, then mixing the resulting emulsion with a latex of a homoor copolymer of a conjugated diene or halogen derivative thereof, the proportion of the diene in a copolymer being at least 75%, and polymerizing the mixture so obtained until 90 to 95% of the monomeric material is polymerized, the latex of the diene polymer being added in a quantity which results in a content of 0.5 to 10% by weight of the diene polymer in the graft polymer.  Polymerization may be accelerated by the use of peroxy compounds, ultra-violet light and high energy radiation. The examples describe grafting vinyl chloride and a mixture thereof with vinyl acetate with butadiene-acrylonitrile and isoprene-styrene copolymers.
Patent GB-250000-A (GB)
Title: Improvements relating to electrically actuated controlling apparatus
IPC: B61L23/16
Filed: 1925-03-19
Abstract: 250,000. Westinghouse Brake & Saxby Signal Co., Ltd., (Union Switch & Signal Co.). March 19, 1925. Signalling any of a number of possible indications.-In electricallyactuated controlling apparatus, particularly that employed in railway signalling systems, two relays are connected each through a current-rectifying device to a source of energizing current of reversible polarity so that one or other of the relays is supplied with energizing current in accordance with the polarity of the source. In the arrangement shown in Fig. 2, rectifying devices A, A<1>, which may be of the character described in Specification 194,653, [Class 38 (ii), Electric currents, Converting &c.], allowing the passage of current in the direction indicated, are connected in the actuating windings of the relays 10, 11. supplied with current from the battery 9 through a polechanger 8. With the pole-changer in the position shown, the relay 10 is supplied with current but not the relay 11, whereas when the polechanger is reversed, relay 11 is supplied and not the relay 10. If the switch 13 is closed to connect the alternating current source 14, both relays will be actuated, one by one half of each cycle and the other by the other half. In the arrangement shown in Fig. 3, the relays are connected in series with one another instead of in parallel and, in addition to the series rectifying devices A, A<1>, additional devices A<2>, A' are connected in parallel with the actuating windings. In an application to a railway signalling system shown in Fig. 4, the rails are divided into insulated sections DE, EF &c. and each section is supplied with current from a separate battery through a pole-changer. Three-position relays 4 - - 7 closing a local circuit for signal lamps G, Y, R are located in each section and are controlled by two windings 2, 3 connected across the track section in parallel and each having a current-rectifying device in its circuit. As shown, with a train W on the section to the right of point F both windings 2, 3 of the relay at point F are de-energized and the relay assumes the middle position in which the red lamp R is lit. The pole-changer B is in such position that winding 3 of the relay at point E is energized and consequently the contact 6 is closed and the yellow lamp Y is lit. Similarly in regard to the prior section, the green lamp G is lit. When the train passes out of the section shown, the signal SF will change to the caution indication and pole-changer 8<F> will be reversed so that signal S<E> will change to the " proceed " indication. The relay arrangement shown in Fig. 3 is described also as applied to signals of the two arm semaphore type. Alternating current only is used and by means of rectifiers currents of different phase are supplied to the different sections under control of the relays. Specification 228,171, [Class 105, Railway signals &c.], also is referred to.
Patent GB-631347-A (GB)
Title: Improvements relating to gun fire-control instruments
IPC: F41G5/08
Filed: 1947-03-18
Abstract: 631,347. Gun-fire control. AKTIEBOLAGET BOFORS. March 18, 1947, No. 7498. Convention date, Dec. 21, 1943. [Class 92 (ii)] Relates to predicting mechanism of the kind in which the target's present and future positions, the position of the sighting instrument, and the lines and angles between these points are mechanically represented on a scale inversely proportional to the present range. According to the invention the apparatus is so constructed that the points representing the sight and the target's present position are fixed. Space diagram.-As shown in Fig. 1, point I represents the sighting instrument, M the target, T the target's future position, MS a perpendicular to IM in the plane MIT, IQ a line parallel to MS, IG a horizontal line perpendicular to IM, and IH a horizontal line perpendicular to IT. IF is a perpendicular through the apparatus. The angles between these lines, to one another and to the horizontal, are indicated, and the present and future ranges are given as L and LT respectively. Apparatus.-In Fig. 3 the apparatus reproduces the data of Fig. 1, the corresponding points bearing the suffix 2; thus I 2  represents the position of the apparatus, and the distance I 2 M 2  represents the target's present range. Certain data, referred to below, which is set into the mechanism can be obtained by any appropriate means. The mechanism includes a rotatable yoke 1 carrying, on a transverse pivot 4, a rotatable yoke 3, in which pivots at 14 a frame 13 carrying a pivoted block 15. The axes I 2 F 2  of frame 13 and I 2 G 2  of frame 3 pass through the point I 2 , and through this point also passes the axis I 2 T 2  of a shaft 16 connected to the block 15 and to a sleeve 28 movable radially on a rotatable ring 21. In setting the apparatus to correspond to the space diagram, the yoke 1 is rotated from the horizontal by gearing 5, 6, 7, through the angle K, the angle between MS and MR, and the frame 3 is so set that angle F 2 I 2 M 2  equals angle FIM, M 2  being at the centre of ring 21. Further settings consist in the rotation of the ring 21 by gearing 22, 23, through an angle such that angle I 2 M 2 T 2  equals angle IMT when the sleeve 28, which is on a spring-controlled carriage 26, is radially displaced by a rod 30 acting on a cam 29 of the carriage, by an amount proportional to v/l.tT, v being the target velocity, l the present range and tT the projectile's time of flight. The displacement of rod 30 is obtained from mechanism to which data is fed from a device 33 controlled by the effective length of rod 16. With the parts correctly set, devices 17, 18, measure the azimuth and training angles and transmit them electrically to the gun.
Patent GB-409490-A (GB)
Title: An improved process for making resinous condensation products
IPC: C08G14/06
Filed: 1933-03-13
Abstract: Condensation products capable of being hardened are prepared by reacting formaldehyde or a polymer thereof with a mixture of an aromatic monosulphamide having no other nuclear substituent comprising an amino-group, a phenolic substance and a carbamide. The components may be condensed simultaneously and in stages using various condensation agents.  In examples: (1) p-toluene sulphamide, phenol, urea and aqueous formaldehyde are condensed in the presence of phosphoric acid to yield a resin soluble in organic solvents such as acetone, spirit and benzol mixtures and glycol monomethyl ether; (2) the resin of example (1) is dissolved in a mixture of spirit and benzol and used, with or without the addition of a white pigment, as a varnish.  Layers impregnated with this varnish may be pressed into boards, the interior layers being, if desired, impregnated only with a phenol-formaldehyde resin.  (3) Phenol, urea and formaldehyde are condensed in the presence of sodium hydroxide and the product, after acidification with phosphoric acid is condensed with p-toluene sulphamide to yield a resin.  (4) The resin of example (3) is worked up with cellulose and a white pigment to yield a moulding compound.
Patent GB-939695-A (GB)
Title: Improvements in and relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/12
Filed: 1961-03-02
Abstract: 939,695. Stud and socket fastenings. F. T. PRODUCTS Ltd. Feb. 28, 1962 [March 2, 1961], No. 7705/61. Class 44. A fastener of mouldable resilient material comprises one part 11 constituting a head which is formed with a stepped through bore and another part which constitutes a resilient stud 12 fitted in the bore in the head, the stud being formed with a flange 19, a neck 17, and a nose 18 joined to the neck by a shoulder, the flange being seated in the step in the bore and a portion of the neck being located within the head, with the nose protruding from the head from the narrower part of the stepped bore. The stud 12 is made of material more resilient than that of the head 11. The fastener is used to secure a beading 21 to a panel 22.
Patent GB-567527-A (GB)
Title: Improvements relating to the production of pile fabrics
IPC: D05C15/00
Filed: 1943-05-15
Abstract: 567,527. Making pile fabrics. BROWN, OGDEN, & CO., Ltd., and BROWN, T. A. May 15, 1943, No. 7767. [Class 142 (iv)] Pile fabric is made from the carded sliver leaving a carding machine by projecting the fibrous material on to the edges e of spaced plates f, and providing means for traversing the fibres along the plates and for securing the fibres to a backing. The fibres are traversed along the plates by spikes or teeth j mounted upon cross-bars i of an endless conveyer h. A thread m is laid in the gap formed in the fibrous material by each plate f, and the threads m are sewn to the backing n to secure the material to the backing. As the material reaches the end of the plates f it is intermittently moved forward by hooks o and a traversing sewing-machine p operates in the gap between the material advanced by the hooks and that emerging from the plates. Alternatively, a multiple head sewing-machine may operate in the gaps in the material formed by the plates.
Patent GB-922973-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/10
Filed: 1961-03-03
Abstract: 922,973. Sliding clasp fasteners. AERO ZIPP FASTENERS Ltd., and LIGHTNING FASTENERS Ltd. March 3, 1961 [March 12, 1960], No. 7827/61. Class 44. A string of approximately U-shaped links for a sliding clasp fastener are formed from a single filament of metal or plastics material, said filament being of either elliptical or oblong crosssection. The limbs 1, 2 of each link are connected to those of adjacent links by bridge portions 7 and 4 respectively, and the bases 3 of each link are twisted through 90 degrees in the regions 5, 6. Preferably, the string is made by firstly bending a filament into a wavy shape and subsequently folding the wavy-shaped filament about its longitudinal axis whilst simultaneously twisting the wire at the regions 5 and 6.
Patent GB-1421311-A (GB)
Title: Microwave bandpass filter
IPC: H01P7/08
Filed: 1974-02-20
Abstract: 1421311 Band-pass filters R MINET J DEBEAU and E L THEPAULT 20 Feb 1974 7827/74 Heading H1W The coupling sections between the half-wave resonators of a stripline filter are shorter than the normal quarter-wavelength, and the resonators are asymmetrically arranged to compensate for the decreased coupling lengths. In the three-section filter shown, lengths are indicated in mm. The open-circuited half-wave resonators are asymmetrically positioned on the main transmission line and are coupled by sections of length approximately to one-eighth wavelength. A five secton filter is described. The Specification describes design procedures in detail. The filter may consist of balanced stripline (sandwich line).
Patent GB-1384196-A (GB)
Title: Retractable winding mandrel
IPC: B29C67/00
Filed: 1973-02-16
Abstract: 1384196 Covering cores by winding PLASTREX-MANURHIN SARL 16 Feb 1973 [17 Feb 1972] 7841/73 Heading B8G [Also in Divisions D1 and F2] A winding mandrel, for making tubes or similar cylindrical articles by cross winding thereon filaments impregnated with a polymerizable resin, is formed with at least one axially extending split 18 and cam means 30 within this split, the cam 30 engaging with wheels 32, 34 mounted in slots opening on to said split to cause the split to vary in size. As shown the cam means 30 is a tapered rod that extends between the wheels 32, 34 carried by yokes 16 forming part of a mandrel 12. When the rod 30 is moved axially it co-operates with the wheels 32, 34 to vary the size of the split 18. Locating studs 36 co-operate with holes 38 to prevent any disaligument in an axial or radial direction between the two edges 20, 22 of the mandrel 12. .
Patent GB-307881-A (GB)
Title: Improvements in or relating to the production of oxides of titanium
IPC: C01G23/053
Filed: 1929-03-11
Abstract: 307,881. Blumenfeld, J., (Assignee of Verein f³r Chemische and Metallurgische Produktion). March 15, 1928, [Convention date]. Silica.-The Specification as open to inspection under Sect. 91 (3) (a) comprises the following subject-matter :-The formation of silica from its halides conducted with the latter in dispersion in an inert medium extractable from the silica by leaching. The halides may be distributed in soluble solid salts such as alkali, alkaline earth, or rare earth chlorides or sulphates and decomposition be effected by steam at say 300-400‹ C., the decomposed mass being further heated to say 800-1000‹ C. before leaching out the alkali &c. salt. This subject-matter does not appear in the Specification as accepted.