baber/WOPTO huggingface dataset:
Patent GB-418660-A (GB)
Title: Improvements in and relating to check valve devices for fluid pressure braking apparatus
IPC: F16K11/00
Filed: 1933-03-30
Abstract: 418,660. Valves. TOMLINSON, A. V., 65, Victoria Street, London.-(Westinghouse Air Brake Co. ; Wilmerding, Pennsylvania, U.S.A.) March 30, 1933, No. 14857/32. [Class 135.] A double check valve for fluid braking systems in which fluid may be supplied to the brake cylinders alternatively through one or other of two conduits has two lift valve members 2, 3 secured to a common spindle 15 and arranged to co-operate with opposed seats 7, 8 formed on a ported liner 13 inserted in the main casing 1. The valve members are guided by contact with the liner, parts of their peripheries being cut away to provide fluid passages. The conduit 16 is coupled to the brake cylinders while the conduits 17, 18 are connected to the two driver's valves, so that when pressure is exhausted through one driver's valve the associated check valve is opened and the other closed by pressure admitted through the second driver's valve.
Patent GB-720219-A (GB)
Title: Separation of bile acids
IPC: C07J75/00
Filed: 1952-06-12
Abstract: Desoxycholic and cholic acids are separated from mixtures thereof by adding approximately 5 to 25 per cent by volume of an alcohol or ketone and at least a sufficient quantity of a non-polar liquid organic substance to form a co-ordination compound with the desoxycholic acid in the mixture to an aqueous solution of the water-soluble salts of the desoxycholic and cholic acids, e.g. containing 15 to 25 per cent by weight of said salts, acidifying with mineral acid until crystallization of the desoxycholic acid co-ordination compound begins, or to a pH6, whichever occurs first, then maintaining the pH of the solution within a range of from zero to 0.5 below the equilibrium pH of crystallization until the bulk of the desoxycholic acid co-ordination compound has crystallized, and separating the co-ordination compound.  After the separation of the co-ordination compound, the solution is acidified further until crystallization of the cholic acid begins and the pH of the solution is maintained within a range of from zero to 0.5 below the equilibrium pH of crystallization until the bulk of the cholic acid has crystallized which is then separated.  It is preferred to maintain the pH of crystallization at 0.1 to 0.2 below the equilibrium pH in both of the above crystallization steps.  The crystallization of the desoxycholic acid co-ordination compound may be initiated by seeding with desoxycholic acid co-ordination compound.  A suitable alcohol is t-butyl alcohol, and a suitable ketone is methyl iso-butyl ketone.  The non-polar liquid organic substance may be benzene, toluene, xylene, chlorobenzene, a dichlorobenzene or an aliphatic hydrocarbon.  The particular mineral acid used in the examples to cause precipitation of the co-ordination compound of desoxycholic acid and cholic acid is sulphuric acid.  The water soluble salts may be formed by adding sodium, potassium or lithium hydroxide, or by adding ammonia or ammonium hydroxide.  A number of examples are given.
Patent GB-164618-A (GB)
Title: Improvements in or relating to furniture fittings
IPC: E05C17/08
Filed: 1920-06-01
Abstract: 164,618. Graham, E. A., and Brockies, A. C. June 1, 1920. Stays.-To limit the angular movement of furniture parts such as lids or covers of receptacles, cabinets, pianos, &c., a stay arm 1, pivotally connected to the lid member, has laterallyprojecting pins 9, 9<a> on its lower end which engage with projections or ridges formed on and at opposite sides of a slotted gate member 7 secured to the receptacle 8, when the lid is raised sufficiently, further opening movement of the lid dragging the pins 9, 9<a> through the gate member until they are in position to drop through the end slot 14, when the lid may be closed. The underside of the cover 10 of the gate member 7 is formed with a projection 11 to engage the pin 9 and arrest the opening movement of the lid, which is then held in the open position by the other pin 9<a> engaging behind a ridge 13 on the other side of the central slot of the gate member. To close the lid, it is pushed upwardly so that the pin 9<a> rides over the ridge 15 and allows the stay arm pins to drop through the sloi 14. A curved spring arm 16 is provided to guide the stay pins into the front end of the slot 6 during the opening movement. In a modified construction, the gate member has projecting metal tongues instead of ridge members.
Patent GB-543504-A (GB)
Title: Saw-tooth wave generator
IPC: H03K4/28
Filed: 1940-10-05
Abstract: 543,504. Pulse discriminating and generating circuits. HAZELTINE CORPORATION. Oct. 5, 1940, No. 14912. Convention date, Oct. 25, 1939. [Class 40 (v)] A sawtooth wave generator comprises an mput circuit supplied with periodic pulses synchronous with the desired output wave and incidentally subject to undesired pulses, a vacuum-tube repeater coupled to the input circuit for developing the output wave, means for deriving from the periodic pulses a periodic wave having a maximum rate of change in one sense at the beginning of each trace interval and a maximum rate of change in the opposite direction at the end of each trace interval, and means for applying the periodic wave to the input circuit with such polarity that it reduces the effect of the undesired pulses but not of the other pulses. The system shown in Fig. 1 comprises a television receiver including an antenna system 10, 11, a radio-frequency amplifier 12 and an oscillator-modulator 13, intermediate-frequency amplifier 14, detector 15, video-frequency amplifier 16, and imagereproducing device 17. The sawtooth generator 18 can be synchronized with a weak pulse of short duration from the separator 20 at the beginning of the re-trace interval, and comprises valves 23, 24, and an efficiency triode 25. The valve 23 shapes the input wave form and is normally biased to cutoff by an adjustable cathode-bias circuit 28, 29 the time constant of which is of the same order of magnitude as the period of the generated wave. The load circuit is a parallel-resonant circuit comprising a capacitance 38 and the inductance of the scanning coil 21 coupled through a step-down transformer 39, 40. A fraction of the pulse voltage appearing across the load circuit is fed back to the valve 23 by the feedback path 47, 49, and the resultant pulse charges the cathode condenser 29. The subsequent discharge of this condenser develops a saw-tooth voltage a, Fig. 2, in the cathode circuit of the driver valve 23 and a pulse across a resistor 30 and a saw-tooth voltage across a condenser 31, the resultant of which is applied to the valve 24 to develop an output current of saw-tooth plus pulse wave form. The saw-tooth component of the current in the cathode circuit of the valve 24 develops a parabolic voltage b, Fig. 2, across the cathode resistor 36 and condenser 37, which is negatively fed back to the valve 23 to immunise it against the disturbing influence of equalizing pulses d, Fig. 2, or other undesired pulses or transients during the middle portion of the trace interval. The curve c, Fig. 2, is the algebraic sum of the saw-tooth voltage a and the parabolic voltage b and is the net voltage of the control electrode of the valve 23 during free running operation. The desired synchronizing pulses e are operative to overcome the bias of the valve 23, whereas undesired pulses d are ineffective. Specification 536,153 is referred to.
Patent GB-1255698-A (GB)
Title: Improvements in or relating to apparatus for the measurement of immittance and the complex transfer parameters of multiport electrical networks at radio frequencies
Inventor: WOODS DONALD
IPC: G01R27/28
Filed: 1969-03-21
Abstract: 1,255,698. Measuring network parameters. D. WOODS. June 10, 1970 [March 21, 1969], No. 14914/69. Heading G1U. A coupling for use in measuring multi-port network parameters comprises coaxial inlet and outlet sockets 6, 13, Fig. 2 and an inner conductor 2 which includes a resistive portion 3 (50 ohms, for example) and two probes, one 11, V 0  attached to the left hand end of the resistance 3, and the other 12, V 1 , attached to the inner conductor in the plane of the outlet socket 13. The coupling also includes a spigot 14 resiliently mounted on the inner conductor and slidable, by means of a solenoid not shown, into a collar 20 to connect the inner conductor to the outer conductor capacitively, both by a ring of electrolytic capacitors 24 and by an annular capacitor 21 comprising a metalcoated-ceramic ring in contact with (though shown separated from) the collar 20 and the outer conductor 1. Thus with the spigot 14 in contact with the collar 20, there is an effective short circuit from 30 kc/s to 100 Mc/s between the inner and outer conductors, in the plane of the first probe 11, V 0 . Finally, the inner conductor is capacitively decoupled 8 from the input socket 6 so that an appropriate bias can be fed in via a further socket 9. The device may be utilized in several ways. For example in testing a two-port network one device may be used in its active mode - without the short circuit caused by moving spigot 14 into collar 20 - in order to inject current Fig. 5a into the network, and one in its passive mode - with the short circuit operative - as a terminating impedence, or vice-versa Fig. 5b.  The device includes stray impedences shown in its equivalent electrical circuit, Fig. 7, as an inductance L s  and an admittance Y s , the load being shown as Y x . The Specification outlines a compensating circuit Fig. 8, for these impedences, including identical unity gain amplifiers 29, 30, 31, 32, which produce outputs V 0 <SP>1</SP> and V 1 <SP>1</SP> from the actual probe outputs V 0 <SP>11</SP> and V 1 <SP>11</SP>. However, the use of amplifiers with non-zero output impedences introduces further errors and a further compensating circuit Fig. 15 (not shown) is also described.
Patent GB-418120-A (GB)
Title: Improvements in and relating to pyrophoric lighters
IPC: F23Q2/02
Filed: 1934-05-17
Abstract: 418,120. Frictional pocket igniters. KRETS, V., 68, Andrassy Ut., Budapest. May 17, 1934, No. 14917. Convention date, Feb. 10. [Class 75 (iii).] The wick-tube 5 is slidably mounted in an aperture 7 in the casing 1 so that, on tilting the igniter, it is projected out of the casing by gravity for facilitating the lighting of pipes. As shown in Fig. 1, the wick 4 is coiled in the enlarged lower end 10 of the tube, which is guided by a partition 2 and acts as a stop. In a modification, shown in Fig. 4, in which the cover 12 can only be turned through an angle of less than 90‹, the tube 5 is pivoted at 13 to a part 14, guided by the flint tube 15, and the aperture 7 is of inverted conical cross-section.
Patent GB-553245-A (GB)
Title: Improvements in knitted articles and method and means of manufacture thereof
IPC: D04B1/02
Filed: 1941-11-20
Abstract: 553,245. Knitting. LIPSON, J., and LIPSON, N. Nov. 20, 1941, No. 14919. [Class 74 (ii)] A sock is formed from two or more threads all of which are knitted throughout the sock and one of which is knitted into longer loops at selected places, e.g. in the heel, toe and sole portions. The sock is knitted upon a circular machine having sinkers 4, 5 with butts 4', 5<SP>1</SP> arranged to be operated by pattern controlled cams 15, 16 so that the sinkers can be projected further at selected times. To provide for the formation of longer loops during reciprocatory knitting in the making of the heel and toe pouches, a cam 15<SP>1</SP> is arranged to engage the butts of the sinkers corresponding to the heel and toe needles Each sinker has a nose 7 so disposed that the thread L to be knitted into the longer loops is engaged on the upper sloping surface of the nose and the other thread S or threads can be received in the throat beneath the nose.
Patent GB-1086413-A (GB)
Title: Improvements in or relating to thermocouples
Inventor: JAQUES THOMAS ARTHUR JOHN
IPC: G01K7/04
Filed: 1965-04-08
Abstract: 1,086,413. Thermocouples. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. April 6, 1966 [April 8, 1965], No. 15031/65. Heading H1K. A thermocouple consists of an outer wire 2 forming a junction 1 with an inner wire 3, the outer wire following a helical path which surrounds the inner wire and at least one of the wires being coated with an electrolytically deposited insulant 4. If the couple is enclosed in a conducting sheath the outer wire is insulated; if in a non-conducting sheath the inner wire is insulated. In such sheathed constructions the insulant does not fill the spaces between the wires. The coating may, however, be applied so as to fill these spaces, and a sheath dispensed with. In the high temperature (1000‹ C.) couple shown both wires and the junction are insulant coated either by electrophoretic deposition of alumina or by anodizing. The wires are of suitable tungsten-rhenium alloys and the outer wire is a close fit in the molybdenum sheath 5.
Patent GB-914685-A (GB)
Title: Anti-breakage plates for colliery skips
Inventor: TROBRIDGE GEOFFREY WILLIAM
Filed: 1958-05-10
Abstract: 914,685. Anti-breakage flaps in skips. DUNLOP RUBBER CO. Ltd. May 4, 1959 [May 10, 1958], No. 15058/58. Class 78 (4). An anti-breakage flap 2 (Fig. 2) in a skip 1 of a skip hoist is controlled by a fluid-pressure device 20 connected through a restricted orifice 30 to a reservoir 21 containing a gas. In the form shown, the device 20 is an hydraulic ram mounted concentrically within the reservoir 21 which may be charged through a conduit 32 and which is fitted with a gauge 33. The orifice 30 is formed in a valve 28 (Fig. 3) which can be pushed off its seat 26, against the bias of a spring 29, by a shock loading which might otherwise damage the apparatus. Some gas may be included in the ram 20 to withstand shock loads, or the system may be wholly pneumatic. In an alternative construction the ram 20 is replaced by a bellows connected externally to a reservoir through a restricted orifice by-passed by a release valve.
Patent GB-295784-A (GB)
Title: Improvements relating to bomb releasing gear for use on aircraft
IPC: F42B3/00
Filed: 1927-06-07
Abstract: 295,784. Cooke, G. H., and Aircraft Patents, Ltd. June 7, 1927. Dropping bombs.-Relates to bomb-dropping gear released by an explosive cartridge situated in a cylinder and operating a piston, and' consists in the arrangement of the cartridge, cylinder, and piston as a single detachable unit. As shown in Fig. 1, the gear comprises in known way a pair of jaws 17, 18, interconnected by teeth 19 and controlled by a catch member 14 for holding and releasing a bomb 22. The catch member 14, which is pivoted at 15, bears against the detachable cartridge unit, which has a cylindrical body 1 and an extension 2. and is secured to the frame 8 by means of a cage 9 and an end cap 13. The cylindrical part 1 of the cartridge contains an explosive charge 4, Fig. 2, confined by wads 5 in an insulating thimble 3, and fitted with an electric fuze 23, the leads 24 of which connect with other leads 25 passing through the cap 13. A piston 7 bears against one of the wads 5 and is guided in the outer end of the extension 2. This piston 7 is pushed out, when the cartridge is fired, and deflects the catch 14 to release the bomb. Instead of the external copper gauze chambers or cages previously used for extinguishing the flame of the gases escaping from large holes in the cartridge chamber, the present cartridge is made with narrow outlets 26, which serve the same purpose. Two slightly different modifications of the construction of the cartridge are described.
Patent GB-1074356-A (GB)
Title: Rate sensor
IPC: G01C19/42
Filed: 1966-04-06
Abstract: 1,074,356. Measuring rate of turn electrically; gyroscopic apparatus. PNEUMODYNAMICS CORPORATION. April 6, 1966 [May 3, 1965], No.15273/66. Headings G1C and G1N. A fluid-rotor rate gyro 51 (Fig. 1) has Piezocrystals 115 mounted in the rotor chamber 71 which sense relative displacement between the fluid 91 and container 71, whereby the crystals produce output signals which are indicative of the magnitude of the rate of turn of the assembly 51 about an axis perpendicular to the nominal rotor spin axis, causing the relative displacement between fluid and container. The signals are fed to a synchronous resolver 35 to determine the polar position of the turn axis. A spherical rotor fluid chamber 71 is formed in a cylindrical body 72 supported by resilient end plates 61, 62, and filled with mercury to which thallium has been added. Mounted centrally by struts 111 in the chamber 71 is a spherical or, as shown, cylindrical support 101, carrying two crystal bars 115, or a single bender bi-morph crystal bar, with a paddle 121 attached to each outer end. When the assembly is rotated about an axis perpendicular to the nominal rotor spin axis, the fluid 91 is displaced relative to the chamber 71, the rotating paddles 121 sense a sinusoidally varying pressure which is conveyed to the crystals 115, giving an A.C. output, fed via slip rings 42 to the stator windings of synchronous resolver 35 to establish the magnitude and phase of the A.C., which is indicative of the magnitude and polar position of the rate of turn of the assembly.
Patent GB-151333-A (GB)
Title: A process of manufacturing double rubber sheets
Filed: 1919-06-18
Abstract: 151,333. Kurosawa, M. June 18, 1919. Insoles and socks.-A double rubber sheet, particularly adapted for making insoles for boots and shoes, is produced by compressing together a layer 1 of spongy rubber and a layer 2 of ordinary rubber, the sheet being then heated in a chamber until the two layers are firmly united.
Patent GB-568957-A (GB)
Title: Improvements in or relating to thermostatic means for regulating the heat supply to liquid heating apparatus
IPC: F24C3/12
Filed: 1943-09-21
Abstract: 568,957. Thermostats. GRIFFITHS. E. E., and GRIFFITHS, J. E. Sept. 21, 1943, No. 15443. Addition to 555,298. Drawings to Specification. [Class 64 (ii)] [Also in Group XXIX] In the combination of a kettle or the like, a heater, and a thermostatic control as in the parent Specification, the evaporate outlet from the kettle is above the normal maximum liquid level, and the connection to the heat responsive chamber of the thermostat is detachable from the evaporate outlet, or is a flexible tube. The detachable connection may be in the form of a spigot and socket joint. The apparatus is the same as that described in Specification 569,357. The thermally sensitive member and its connection may be in the form of concentric pipes.
Patent GB-844510-A (GB)
Title: Improvements in and relating to the process of laminating a layer containing triazine aldehyde resin to a metal
IPC: C08J5/12
Filed: 1958-05-14
Abstract: In laminating a layer containing a triazinealdehyde resin to metal, a film of a composition containing neoprene latex is applied to that face of the metal to which the resin containing layer is to be applied, and the film is dried.  The neoprene latex is preferably alkaline; it may contain a thickening agent and may p  contain a metal-etching compound, e.g. a water-soluble fluoride such as ammonium silicofluoride.  The dried film is preferably of thickness more than0,001 inch.  According to examples the compositions contain: (1) 50% alkaline neoprene latex water, casein, potassium hydroxide and ammonium thiocynate (2) alkaline neoprene latex, latex of GR-S, butadiene-acrylontrile copolymer or natural rubber, water, ammonia, casein and urea (3) alkaline neoprene latex, methyl cellulose solution and powdered silica.
Patent GB-1016473-A (GB)
Title: Fabrication of exothermic,self-hardening mould
Inventor: NASHIYAMA TAKIO
IPC: B22C1/18
Filed: 1963-04-19
Abstract: 1,016,473. Mould and core materials. HITACHI SEISAKUSHO KABUSHIKI KAISHA. April 19, 1963, No. 15573/63. Heading B3F. A process for making self-hardening moulds comprises mixing a granular refractory material, aqueous sodium silicate and a powder comprising silicon or an alloy and/or compound containing silicon and only one other element, other than silica sand, and shaping the mixture to form a mould. The granular refractory may be silica sand, and the compound containing silica may be ferrosilicon or calcium silicide. Sodium hydroxide may be added to the sodium silicate and additives such as cereal flours, dextrins, sawdust, woodflour, carbonaceous materials and/or pitch may also be included.
Patent GB-166229-A (GB)
Title: Improvements in or relating to filtering, decolorizing, or purifying processes and decolorizing carbons therefor
IPC: C01B31/08
Filed: 1919-06-20
Abstract: 166,229. Sauer, J. N. A. June 20, 1919. Carbon.-Decolorizing-carbons such as those sold under the Registered Trade Marks " Eponit " and " Norit," containing at least 90 per cent of carbon are boiled with excess of dilute acid such as hydrochloric acid and washed until the wash-water is neutral. The treated carbon, containing adsorbed acid, is then used, in its wet condition to purify aqueous or alcoholic liquors such as sugar solutions which in the ordinary course would require acidification. The adsorbed acid renders acidification of the liquid unnecessary. Specification 106,089 is referred to.
Patent GB-838964-A (GB)
Title: Improvements in or relating to processing of polyethylene and copolymers of ethylene
IPC: C08K3/04
Filed: 1958-05-15
Abstract: Polyethylene or a copolymer of ethylene and not more than 70% propylene, and optionally another unsaturated hydrocarbon, are stabilized and cross-linked by heating the polymer in the presence of carbon black and an organic peroxide of the formula <FORM:0838964/IV (a)/1> where R1 is an aryl radical, R2, R3, R4 and R5 is hydrogen or an alkyl radical of up to 4 carbon atoms, and R6 is hydrogen, an aryl radical, or an alkyl radical of less than 4 carbon atoms.  The Specification contains an extensive list of peroxides in accordance with the above formula.  The carbon black may be furnace or channel black.  The third hydrocarbon of the copolymer may be butadiene, isoprene, dipentene, or alloocimene.  The polymers may be made by high or low pressure techniques.  Specifications 471,590, 721,046, 748,583, 748,632, 748,634, 753,349, 799,392, 799,823, 801,031, 804,641, 810,023 and 810,024 are referred to.
Patent GB-428975-A (GB)
Title: Improvements in apparatus for damping paper, textile and like webs
IPC: D21G7/00
Filed: 1934-05-25
Abstract: Apparatus for damping webs of paper, textiles, &c. comprises two or more series a, Figs. 1 and 2, of atomizing devices b constructed and arranged so as to produce a uniform mist or vapour, the several series being reciprocated in parallel paths transversely to the web and in relative phase displacement.  As shown, the trunk pipes a carrying the atomizing devices are reciprocated by crank pin and slot mechanism h, k with the cranks at 180 DEG  to each other.  Liquid is supplied to the atomizing devices from the trunk pipes a on which the devices are mounted, and compressed air through connected pipes c. The Specification as open to inspection under Sect. 91 describes a construction of atomizing device comprising a base part 1, Fig. 3 (Cancelled), a body member 2 and a spray head 3, held together so as to be capable of rotation by a bolt 20, the parts being provided with communicating grooves and passages 5, 4, 6, 7, 8 for the passage of liquid, and with grooves and passages 11, 12, 13 for the supply of compressed air; the air outlet 14 is at right-angles to the liquid outlet 8, and is controlled by a needle valve 15.  It is further stated that the spray <PICT:0428975/IV/1> <PICT:0428975/IV/2> <PICT:0428975/IV/3> cones of the several series are arranged to intersect slightly. This subject-matter does not appear in the Specification as accepted.