baber/WOPTO huggingface dataset:
Patent GB-651398-A (GB)
Title: Improvements in or relating to mooring devices for vessels such as yachts
IPC: B63B21/18
Filed: 1947-07-07
Abstract: 651,398. Chain stops. COMMERCIAL BOATS, Ltd., and JONES, A. H. LINDLEY-. July 7,1947, No. 17937. [Class 78 (ii)] A mooring device for boats comprises a guiding surface (e.g. roller 14) having grooved out cones 17 and 18 for a chain 15 and adapted to locate the chain so that one set of alternate links in contact therewith is disposed in a substantially vertical plane and the other set of alternate links in a plane at right angles to such vertical plane ; and a pivoted pawl member 21 secured to a fixed part 11 of the device in offset relationship to the guiding surface and adapted to co-operate with and engage in between the links of the chain in the manner of a ratchet and pawl mechanism so as to permit holding of the chain against movement in the reverse direction. As shown, pawl 21 is pivoted at 20 to bracket 11 adapted at 27 to be fixed to a ship's post, and engages in a transverse link of chain 15 as it passes round grooved roller 14. The pawl 21 has faces 23-24 shaped to engage the vertical links and abuts against stop 26 to prevent movement of chain to the right whilst permitting movement to the left. A finger lug 25 allows the pawl to be lifted to permit movement to the right when required. Ring 28 is for receiving a stay wire. Alternatively the device may be fitted with a base for securing to the deck.
Patent GB-1495481-A (GB)
Title: Process for the obtaining of isobutylene of high purity
IPC: C07C11/09
Filed: 1976-05-03
Abstract: 1495481 Purifying isobutylene COMPAGNIE FRANCAISE DE RAFFINAGE 3 May 1976 [9 May 1975] 17974/76 Heading C5E Isobutylene is purified by a process comprising: (A) separating by distillation (1) isobutylene of a purity equal to or greater than 99À5% and (2) a mixture containing tertiary butyl alcohol, water, polymers of isobutylene, cis- and trans-2-butenes and isobutylene in such amount that it represents from 0 to 15% by weight of the isobutylene contained in the initial batch; (B) washing the mixture (2) from stage (A) with water to obtain (1) an aqueous phase containing tertiary butyl alcohol and (2) an organic phase containing the isobutylene polymers, the cis- and trans-2-butenes, the isobutylene not separated in stage (A), and the tertiary butyl alcohol not dissolved in the wash water; (C) distilling the organic phase (2) from stage (B), to separate (1) the polymers of isobutylene and (2) a mixture containing isobutylene and the cis- and trans-2-butenes, whereby the isobutylene contained in said resulting mixture is capable of recovery by extraction; (D) distilling the aqueous phase from stage (B), to separate (1) water and (2) an azeotrope of tertiary butyl alcohol, and water, whereby the tertiary butyl alcohol in the azeotrope is capable of being dehydrated to isobutylene. The starting mixture may be obtained by treating a mixture of C 4  hydrocarbons with 50% H 2 SO 4 , regenerating crude isobutylene from the extract obtained and washing the crude isobutylene with an alkaline solution.
Patent GB-1224351-A (GB)
Title: Improvements relating to time delay electrical circuits
Inventor: GALPIN ROBERT KEITH PORTWAY
IPC: G11C27/02
Filed: 1967-04-19
Abstract: 1,224,351. Active impedance networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 3 April, 1968 [19 April, 1967], No. 17988/67. Heading H3U. Time delay circuits comprising N-path networks, coupled to operational amplifiers, e.g. as described in Specification 1,223,560, are modified by coupling across the operational amplifier which is connected to the commutated capacitor network, a feedback capacitor in parallel with a short-circuiting switch. The switch, which may be a field effect transistor, is arranged for operation between each commutation step to short-circuit the feed-back.
Patent GB-833170-A (GB)
Title: Improvements in or relating to a method of reducing tungsten compounds
IPC: C22B34/36
Filed: 1958-06-05
Abstract: Tungsten compounds are reduced using potassium silico-tungstenate of the formula K4SiW12O40, with or without water of crystallization, as "dope".  The starting product, e.g. ammonium para-tungstenate, may be soaked in the "dope", which may contain some aluminium nitrate, prior to reduction in a single stage with hydrogen and tungsten.  In an example, ammonium para-tungstenate is soaked in a "dope" in an enamelled cup provided with a steam jacket the mass being continuously stirred until the water has evaporated.  The proportion of dope to ammonium para-tungstenate is such as to give 4.6 grammes K4SiW12O10 and 0.06 grammes Al per 100 grammes tungsten.  After drying, reduction is carried out in a single stage in a horizontal tubular furnace divided into sections at 750, 800 and 825 DEG C.  A boat of 500 grammes ammonium para-tungstenate travelled through the furnace in 3/4 hour, and a powder with an average grain size of 2-4 microns was produced.
Patent GB-348428-A (GB)
Title: Improvements in plug and socket connectors and adapters used in or with electrical circuits and apparatus
IPC: H01R33/94
Filed: 1930-06-13
Abstract: 348,428. Earth-continuity couplingsÀ LUNDBERG & SONS, Ltd., A. P. and PEGG, G., 477, Liverpool Road, Holloway, London. June 13, 1930, No. 18170. [Class 38 (i).] Plug and twopart couplings.-An adapter comprises a multiple-pin plug unitary with a bayonet socket coupling, one of the plug-pins being electrically connected to the bayonet socket itself, more particularly for earthing purposes. The plug-pins 1, 3 are movably mounted in slotted guides 5 contained in recesses in an insulating base 4 on which also a bayonet socket coupling is mounted. The spring plunger contacts 13 are connected to the two pins 3 and the metal socket 8 containing the bayonet slots is connected electrically to the earthing pin 1. Specifications 232,422 and 278,598, [both in Class 38 (i), Electric couplings &c.], are referred to.
Patent GB-826827-A (GB)
Title: Process of concentrating niobium minerals by froth flotation
IPC: C22B34/24
Filed: 1958-06-06
Abstract: Niobium minerals are concentrated by a froth flotation process in which the collector agent comprises one or more alkyl substitution products of 8 - quinolinol conforming to a homologous series, with or without 8-quinolinol.  Agents specified are 2 - methyl -, 4 - methyl -, and 6 - methyl - 8 - quinolinol. The examples relate to the concentration of a carbonatite - type ore containing perovskite and pyrochlore.
Patent GB-145799-A (GB)
Title: Improvements in or relating to broken pick extractor for looms
IPC: D03J3/00
Filed: 1920-07-02
Abstract: 145,799. Crompton, C. July 16, 1918, [Convention date]. Removing broken and incomplete picks of weft. -Broken or incomplete picks are withdrawn entire from the shed before the beat-up by slotted tubes 23, Fig. 5, adjustably mounted on projections 19<b> on members 19, which are pivoted to stands 27, Fig. 3, and provided with plungers 20 communicating by means of flexible tubes 31 with a vacuum tank. The plungers have openings 22 normally communicating with openings 25 in the tubes 23, whereby incomplete picks &c. are sucked into the tubes, which normally extend into the shed, but are moved away at the beat-up by cams 33, Fig. 2, on the lay, against the action of a spring 32 extending across the loom and connecting the members 19. At the same time, the plungers 20 are moved downwards in the members 19 by connectors 29, the weft end being severed by the edges of the openings 22, 25. The members 19 are made of tempered steel, so as to yield when the lay hits the tubes after their withdrawal from the shed.
Patent GB-566998-A (GB)
Title: Improvements in damping valves for resilient suspension devices
IPC: F16F5/00
Filed: 1940-12-30
Abstract: 566,998. Resilient hydraulic shockabsorbers. DOWTY EQUIPMENT, Ltd., and BINGHAM, A. E. Dec. 30, 1940, No. 18221. [Class 108 (iii)] A resilient fluidfriction apparatus depending upon the compression of liquid, comprises a plunger 11 working through a stuffing-box or packing 8 in the end of a cylinder 7 and a piston or damping head 12 on the end of the plunger partitioning the cylinder and carrying a damping valve 15 which is movable relatively thereto so as to provide a variable throttling effect. The valve is hollow with an end throttling orifice 18, spaced lateral orifices 19, 20, 21 and with shoulders 16, 17 limiting its relative movement. Two or more valves may be provided. The valves may be solid with leakage orifices formed by grooves running along part or the whole of its length. The groove may be of varying depth along the length of the valve. The valve may be fixed relatively to the cylinder.
Patent GB-356319-A (GB)
Title: Improvements in a device for using heat plastic binder tape with rotary folders
IPC: A43D8/40
Filed: 1930-06-13
Abstract: 356,319. Affixing adhesive tape to edges of sheet material. O'DONNELL, P. L., 2239, Drex Avenue, Cincinnati, Ohio, U.S.A. June 13, 1930, No. 18230. [Classes 16 and 73.] A method of binding the edges of leather &c. consists in sewing thereto a tape which is impregnated with heat plastic adhesive, folding the free edge of the tape over the leather, and directing heat to the tape immediately prior to the folding operation. The machine employed may be of the kind described in Specification 239,195, [Class 16, Books &c.], and comprising a rotating head 7 with oppositely rotating discs 8 which exert a wiping action over the surface of a roller 9 having a guide rib 10; a guide block 11 and guide wheel 13 cooperate with the rib 10. The adhesive is softened by directing a blast of heated air through a nozzle 19, the air being heated by being blown through a chamber provided with an electric heater; a flameheated coil may also be used.
Patent GB-1492444-A (GB)
Title: Detection of leakage current
IPC: G01R27/18
Filed: 1976-05-03
Abstract: 1492444 Measuring current ELECTRICITY COUNCIL 3 May 1976 [1 May 1975] 18277/75 Heading G1U To test for leakage current through a high impedance member (e.g. a 'live' working tool for overhead power lines), a point on the member is grounded via two terminals of an apparatus which includes a rectifying circuit between the terminals, an indicator responsive to the rectifier output, and separate source of A.C. connected to the rectifier. The 400 Hz oscillator 27 slowly charges capacitor 16 via rectifying diode 15 as long as switch 20 is open circuit. With no leakage current from the tool resistance 10, after about 10 seconds, Schmidt trigger 18 fires, operating a one-half second monostable 19 which closes switch 20 to discharge the capacitor 16 via diode 26 and current limiting resistor 25, and to connect a 2À5 KHz oscillator 21 to ground, thus turning it on to provide an audible 'bleep' from loudspeaker 24. These 'bleeps' are repeated every 10 seconds unless leakage current from resistance 10 increases the rate of charging of the capacitor 16, when the 'bleeps' occur more often, to provide a warning of excessive leakage current. A change in repetition rate also occurs if any component in the apparatus fails.
Patent GB-1033425-A (GB)
Title: Improvements relating to the heat-treatment of copper free aluminum base alloys
Inventor: VERNAM WILLIAM DONALD
IPC: C22C21/10
Filed: 1964-05-01
Abstract: An alloy containing in percentage by weight <TABS:1033425/C6-C7/1> is subjected to a heat-treatment sequence consisting of  (a) solution treatment at 700 DEG -970 DEG F.  (b) cooling to 250 DEG F. or below at not more than 200 DEG F/Sec.  (c) holding at room temperature for at least 72 hours  (d) ageing at 200 DEG - 250 DEG F. for 4 to 24 hours  (e) with or without an intermediate cooling ageing further at 280 DEG -320 DEG F. for 8-24 hours.  The material may be subjected to a small amount of cold work e.g. 5% for straightening purposes prior to ageing.  Solution treatment may be combined with hot working carried out in the precribed range.
Patent GB-276121-A (GB)
Title: Method of degreasing textile materials
IPC: C11D9/00
Filed: 1926-07-22
Abstract: 276,121. Ellis, G. B., (Kohnstamm & Co., Inc., H.). July 22, 1926. Cleansing-compositions.-In the boiling out of waxes, fats and other impurities from textile materials prior to bleaching, mercerizing or dveing, by means of an alkaline solution, magnesium oleate, which may be sulphonated, is added, preferably together with other soap or soluble oils, to the extent of about 10 per cent of the alkali used.
Patent GB-440548-A (GB)
Title: Safety razors
IPC: B26B21/16
Filed: 1935-06-26
Abstract: 440,548. Safety razors. MOGI, C., 17, Higashimatsushita-cho, Kanda-ku, Tokio. June 26, 1935, No. 18349. Convention date, Oct. 22, 1934. [Class 30] A blade 10 clamped between hinged plates 7, 8 and rotatable about a spindle 5 is held, when in operation, against the guard 11 by hooked slides 12, 13 operated by the transverse motion of a plate 20. The inner ends of the slides are formed into projections 18, 19 which pass into slots 21, 22 in the plate which engages the handle. 1 with friction caused by springs 26, 27. If the plate be pressed upwards, Fig. 4, the slides 12, 13 are caused to approach each other and the hooks 16, 17 to pass over the ends of the upper clamping plate 7. The plates 7, 8 are connected by means of a separable hinge joint 9.
Patent GB-1517140-A (GB)
Title: Process for producing a gas which has a high calorific value and a low dust content
IPC: B01D47/00
Filed: 1977-05-02
Abstract: 1517140 Purifying producer gas METALLGESELLSCHAFT AG 2 May 1977 [26 May 1976] 18355/77 Heading C5E A solids-laden crude gas at 350-800‹C, which has been produced by gasifying a solid fuel (e.g. coal) under a pressure of 5-150 bars with steam and/or free O 2 , is purified by removing some of the solids in a coarse purification stage (e.g. one or more cyclones) and then scrubbing the gas with a liquid hydrocarbon at 200-300‹C and having a maximum water content of 5 weight per cent, to give a gas having a high calorific value and low dust content. The gas leaving the coarse purification at above 350‹C may be cooled before scrubbing by being sprayed with water. Preferably at least 70% of the hydrocarbon scrubbing liquid has a b.pt. above 350‹C. The scrubbing may be carried out in one or more Venturi-type or radial flow scrubbers. The used scrubbing liquid may be separated into a heavy phase and a lighter phase, the former being recycled to the gasification reactor, and the latter to the scrubber.
Patent GB-753450-A (GB)
Title: Improvements in and relating to lighting fittings
IPC: F21V11/00
Filed: 1952-07-21
Abstract: 753,450. Lighting fittings. CAILLOT, F. H., CAILLOT, J. R., and CAILLOT, J. P. July 21, 1952 [Aug. 1, 1951 ; Jan. 30, 1952], No. 18356/52. Classes 75(2) and 75(4). A light diffusing grid comprises intersecting glass elements 8, 9 cemented to or formed on a glass plate 7 to provide a formation of cells which are deeper than the thickness of the strips and are closed at one end by the plate 7 to prevent access of dust therethrough to lamps 1. The plate 7 may be plane as in Figs 3, 4 with projecting edges to provide for support on flanged ceiling girders or beams 10. Figs 8 and 10 show a channel-section plate 57 with integral intersecting ribs 8, 9 on one face, providing a unit which may be mounted in side by side, end to end or face to face relation with similar units, the latter arrangement forming a tubular lamp-housing with the units held together by clips 35, Fig. 21, on adjacent edges. In the tubular arrangement shown in Fig. 21, the units may be curved about an axis perpendicular to the plane of the plate 57. The unit shown in Fig. 15 is formed with a curvature in transverse section of its plate 57 and the Specification describes various arrangements of such units for masking beams and providing cornice light fittings.
Patent GB-979838-A (GB)
Title: Improvements in and relating to the control of parallel connected synchronous machines
Inventor: JANZEN HEINZ
IPC: H02J3/38
Filed: 1961-05-19
Abstract: 979, 838. Automatic load sharing systems. LLOYD DYNAMOWERKE G.m.b.H. May 19, 1961, No. 18398/61. Heading G3R. A system for automatically maintaining the division of reactive load between a plurality of alternating current generators 10,10' by controlling the field excitation of the machines comprises a resistor 24 in the field circuit of each generator, the resistors 24 being connected in a series circuit which includes control windings 22 on a saturable reactor 19 associated with each generator the arrangement being such that if one machine tends to take too much load, the volt drop across the associated resistor 24 increases thereby causing a circulating current to flow in the series circuit including the control windings 22 which alters the impedances of the saturable reactors 19 to alter the current flowing in the windings 17 of the transformers 13 so to alter the exciting current flowing in the field windings 11 to restore the division of the reactive load. The voltage output of the generators is controlled by voltage regulators 23 and windings 21 on the saturable reactors 19. Other embodiments show the control arrangement dependent on armature current, the control circuit isolated from the field circuit by a pulse transformer, the control circuit modified by the addition of a signal proportional to terminal voltage of the generators and in which only one inter-connecting bus-bar 25 is used.
Patent GB-460950-A (GB)
Title: Improvements in and relating to the manufacture of straight round sticks, e.g., for roller blinds, awnings and the like
IPC: B27M3/00
Filed: 1936-07-03
Abstract: 460,950. Wooden rods. LISSAU, T. July 3, 1936, No. 18444. Convention date, July 4, 1935. [Class 145 (ii)] Wooden rods for roller blinds, awnings, &c. are made by inserting two or more sections, whose combined cross-section is substantially circular, into a sleeve, pressing the sections apart against the wall of the sleeve and ensuring the connection between the parts by suitable means. Two semicircular sections a are obtained by cutting through a stick longitudinally ; one section is turned end for end, and the sections are then inserted in a sleeve b of wound paper, paper board or cardboard; the sections a are then pressed apart against the wall of the sleeve by wedges c pushed between the sections along or across the axis, the wedges filling the space formed by the cut. The wedges may be driven through holes previously provided in the sleeve and may be inserted in pairs opposite to each other. When sufficient friction has been developed between the sections and the sleeve, which may be flexible to a certain extent, the rod is given the desired straight shape by slight displacements of the sections relative to each other ; the mutual connection between the parts is then ensured by glue. Alternatively, no glue is employed, the connection being ensured solely by the wedges, the projecting ends of which are cut away. The sleeve b may be in sections and may project beyond the sections a so that spaces are formed at one or both ends to form sockets for spring roller mechanism in the case of self-rolling blinds. In a modification, the sections are straightened in a rigid sleeve by wedges coated with glue; when the glue hardens, the outer sleeve is removed. Instead of adhesive, transverse bolts or rivets with sunken heads may be used.
Patent GB-146427-A (GB)
Title: Improvements in the manufacture and production of tanning preparations
IPC: C14C3/08
Filed: 1920-07-03
Abstract: Tanning-agents are prepared by sulphonating crude anthracene, crude carbazole, anthracene waste, or the like, by means of chlorsulphonic acid, preferably in the presence of an inert diluent, such as nitrobenzene, at a moderate temperature; the products may be subsequently treated with decolourizing agents as described in Specification 169,943.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the sulphonation of the above materials with sulphuric acid, and decolourizing the product by means of chlorine, hypochlorites, oxalic acid, formaldehyde, &c.  This subject-matter does not appear in the Specification as accepted.
Patent GB-786298-A (GB)
Title: Improvements in separators for electric storage batteries
IPC: H01M2/16
Filed: 1955-06-27
Abstract: 786,298. Storage battery separators. ELECTRIC STORAGE BATTERY CO. June 27, 1955 [July 19, 1954], No. 18475/55. Class 96. A storage battery separator comprises a sheet of cellulose fibres mixed with a finely divided filler, e.g. infusorial earth such as kieselguhr and cured phenol-formaldehyde resin. The filler is inert to chemical attack by the electrolyte and forms a filter bed within the separator pores to prevent the migration of impurities from the positive to the negative plates. The amount of infusorial earth may be between 2 and 20 per cent of the dry weight of fibres. The sheet may be paper of high alpha-cellulose content. Reference has been directed by the Comptroller to Specification 751,734.
Patent GB-607682-A (GB)
Title: Improvements in and relating to magnetic separators
IPC: B03C1/14
Filed: 1944-09-27
Abstract: 607,682. Magnetic separators. WIIG, R. C. S. Sept. 27, 1944, No. 18515. [Class 72] In a magnetic separator in which a drum t rotates round the pole shoes b of cores a surrounded by coils c and in which the material to be treated is fed in at d between a middle brass table m<2> and a separating knife m', a cleft for dead material being formed between the parts m<1> and m<2>, the latter parts are each covered with an iron plate j to increase the density of the line of force passing through the material. The plate m' is also provided with a non-magnetic ledge h so that the material fed in at d will pass close to the drum t. In a modification Fig. 3, the parts m', m<2> are made as a continuous plate m and also the plate j, both plates being provided with a perforated portion which serves the same purpose as the cleft in Fig. 2.
Patent GB-1127129-A (GB)
Title: Improvements in "organopolysiloxanes"
IPC: C08G77/00
Filed: 1966-04-28
Abstract: 1,127,129. Polysiloxane coatings. GENERAL ELECTRIC CO. 28 April, 1966 [27 May, 1965], No. 18606/66. Heading B2E. [Also in Divisions C3 and D1] In Examples a methanol solution of a methylolated amidoalkylpolysiloxane (see Division C3) and a mixture of t-alkylamine hydrochlorides, as curing catalyst, was used (8) to coat glassine paper (to render it waterrepellent and abhesive), by depositing a film thereon and curing at 150C. for 30 secs., and (9) to coat mild steel panels (to inhibit corrosion) curing of the coating being effected at 150C. for 2 mins.
Patent GB-440119-A (GB)
Title: Improvements in and relating to soil cultivators
IPC: A01B33/02
Filed: 1934-06-23
Abstract: 440,119. Machines for working land. HALDENBY, G. E., Elder House, Wroot, Doncaster. June 23, 1934, No. 18607. [Class 6 (i)] A cultivating machine comprises one or more pairs of discs rotatable about axes extending obliquely upwards and forwards and so arranged that the leading edges of the discs of a pair overlap, one or both of the discs of each pair being positively driven. The discs 8 may be mounted on a wheel-supported framework adapted to be drawn by horse, manual, or other power, and provided with a seat and tool-box. The discs of each pair are driven in opposite directions through telescopic and universally jointed shafts 15 and gearing 13, 14 from a shaft 12 driven from the wheels 3 by chain gearing 10. The bearing blocks of the discs are carried by braced stays 22 associated with a cross-bar 23, and may be lifted by means of guiding handles 25 and adjustably supported by chains 26. The discs may be flat or dished.