baber/WOPTO huggingface dataset:
Patent GB-1409057-A (GB)
Title: Hydro-pneumatic vehicle suspension systems
IPC: B60G17/04
Filed: 1972-09-01
Abstract: 1409057 Valves; hydropneumatic suspensions with variable spring rate; valves SOC ANON AUTOMOBILES CITROEN 1 Sept 1972 [6 Sept 1971] 40779/72 Headings F2S and F2V In a hydropneumatic suspension system comprising an hydraulic piston-cylinder 1, 3 communicating via a slide valve 7 with one or the other of two hydropneumatic accumulators 8, 9 at different pressures, the slide valve 7 being biased by a spring 10 and acted on by the pressure in a chamber 20 communicating via a control line 11 with the cylinder 1, to switch one or other of the accumulators in to vary the flexibility of the suspension, there is a valve member 12 in the control line 11 to delay the pressure signal to the slide valve 7 and so prevent rapid switching of the accumulators in response to changes in dynamic load, the flexibility of the suspension changing only with static load. The valve member 12 has two stable positions, with a ball 33 in one or other of notches 31, 32. In operation-under low load, the pressure in cylinder 1 is low and prevails in chamber 14. The valve member 12 is urged by its spring 13 into the position where the ball 33 is in the notch 31. This permits flow of liquid from the chamber 20 to an exhaust line 15. The slide valve 7 is urged by its spring 10 to a position where the cylinder 1 is in communication with the low pressure accumulator 8. This provides a high flexibility suspension. Since the chambers 14 and 20 are isolated from each other, transient increases in pressure in the cylinder 1 due to changes in dynamic load are insufficient to affect the slide valve 7. Under high load however the pressure in chamber 14 becomes sufficient to move the valve member 12 against its spring, the ball 33 coming out of the notch 31 and into the notch 32. Liquid therefore flows from the chamber 14 to the chamber 20 and moves the slide valve 7 against its spring to put the accumulator 9, instead of the accumulator 8, in communication with the cylinder 1. This provides a low flexibility suspension. Transient decrease in presssure in the cylinder 1 due to changes in dynamic load are again insufficient to affect the slide valve 7 because the chamber 20 is isolated from the exhaust line 15. Switching back to the accumulator 8 does not occur until the load diminishes sufficiently for the pressure in the cylinder 1 and the chamber 14 to drop to a value which allows the spring 13 to disengage the ball 33 from the notch 32, and move the valve member 12. This value is a lot lower than that required to move the valve member 12 back again, and so rapid switching is prevented.
Patent GB-1126791-A (GB)
Title: Machining metallic strip
Inventor: GILLET CHARLES
IPC: B23D1/26
Filed: 1965-09-24
Abstract: 1,126,791. Edge-planing. VALLOUREC. 24 Sept., 1965 [29 Sept., 1964], No.40806/65. Heading B3L. Means for maching the edges of a metal strip 3 comprises pairs of tools 17 and associated rollers 16 mounted on slides 11 movable freely transversely of the strip. The function of each pair of tools, 17 may be taken over by duplicate pairs of tools 18 whilst the machine is operating. The last two tools on a slide 13 bevel the edges. To distribute wear on the tools ; all the slides 11 are moved intermittently in a circular motion by a device 20 acting through ratchet wheels carrying eccentrics 19 and slide-carrying brackets 7, 8. The slide 13 takes part only in the horizontal component of movement of the brackets. Between movements, the eccentrics are clamped by friction pads and springs which can be released by fluid-pressure. Adjustable spring-pressure is applied to rollers 4 to hold the strip on the bed 1. The rollers 16 are adjusted initially to the width of the strip but can yield against springs if necessary. Each slide 11, Fig. 10, carries an adjusting screw 62 for each tool and clamping screws 56.  The spacing of the brackets 7, 8 is adjusted by screws and interconnecting chains (67), Fig. 1 (not shown). In modifications, the brackets are moved by hydraulic means or screws, or each slide has its own control brackets, or the slide 13 is moved as are the slides 11 and the tools are moved thereon to maintain the same size and bevelled shape of the strip.
Patent GB-1271753-A (GB)
Title: Data transmission system
Inventor: CROISIER ALAIN
IPC: H04L25/48
Filed: 1969-08-15
Abstract: 1,271,753. Digital transmission systems. INTERNATIONAL BUSINESS MACHINES CORP. 15 Aug., 1969 [4 Sept., 1968], No. 40926/69. Addition to 1,154,648. Heading H4P. In a digital transmission system each digital pulse, of duration T, is represented by a pulse sequence comprising a main pulse with two " echo " pulses following and preceding it. Successive sequences overlap, and the system is so designed that the resulting sequence is a signal (Sin (#t/2D).Cos 2#ft)/t, where T=pD (p is integral), and f=(2n-1)/4D. At the receiver this signal is demodulated with a frequency f+1/4D, the demodulated signal being sampled at a rate 1/T. The main pulses may be multi-level signals. In an example in which n = 2 and p = 1, binary data is passed to a 3-bit shift register stepped at bit rate. The parallel output of the register is selectively passed via gates, enabled by three bit-rate time-staggered clock trains, to a circuit which weights its inputs and presents a signal which, after low-pass filtering, has the waveform defined above.
Patent GB-976450-A (GB)
Title: Improvements in or relating to alternators and motors
Inventor: TILTINS JANIS
IPC: H02K19/24
Filed: 1963-10-18
Abstract: 976,450. Dynamo-electric machines. THOMPSON RAMO WOOLDRIDGE Inc. Oct. 18, 1963, No. 41299/63. Heading H2A. An inductor machine has a housing 6 of magnetic material including a cylindrical portion 6a and two end walls 6b, 6c which are axially spaced from a wound laminated stator 13, secured within the cylindrical part of the housing. A rotor 8 is mounted within the stator and comprises a pair of sections 15, 16 with interdigitated pole members 15a, 16a separated by a non-magnetic spacer 17. In operation, the magnetic flux produced either by coil 11 or by a permanent magnet, Fig. 6 (not shown), passes through the end walls into the rotor sections and induces A.C. in stator winding 14 when the rotor rotates. The non-magnetic spacer 17 acts as a damper winding to reduce transient flux effects and the rotor periphery is made smooth to reduce windage losses. The machine may be operated as a motor by supplying power to winding 14.
Patent GB-1146538-A (GB)
Title: Improved high frequency electron discharge devices of the klystron type incorporating leaky wall h-field tuners
IPC: H01J23/207
Filed: 1966-09-16
Abstract: 1,146,538. Klystrons. VARIAN ASSOCIATES. 16 Sept., 1966 [22 Oct., 1965], No. 41535/66. Heading H1D. A tuning arrangement for a klystron cavity includes a section of waveguide coupled to the cavity by a dielectric window sealed across an aperture in the cavity sidewall, the waveguide having a cut-off frequency which is above the tunable frequency band of the cavity, a movable tuning member being disposed within the waveguide. In a reflex klystron, Fig. 1, in which the gun 18 and the reflector electrode 19 are supported in dielectric end discs 23 and 25, the cavity 16 is coupled through alumina ceramic windows 37 and 42 to an output waveguide 40 and a circular threaded waveguide section 34 closed by a metal or dielectric tuning screw 36. In modifications of the tuning arrangement, the tuning screw may be of smaller diameter than the waveguide, entering the latter through a threaded flange sealed across its end; a rod of reduced diameter may project axially from the end of the screw (Fig. 7, not shown), and the tip of the rod may be copper-coated, or of dielectric, or may support a #/4 choke (61, Fig. 9, not shown); or a #/4 choke may be mounted directly upon the end of the tuning screw (Fig. 12, not shown). The circular window 37 is supported above the oblong coupling aperture 35 by, and is sealed to, the metal support 38; in alternative window arrange - ments, the window is disposed flush upon the cavity wall 24 (Fig. 4, not shown), or is of oblong shape and is brazed to a copper frame which is itself brazed to a copper washer.
Patent GB-1358333-A (GB)
Title: Production of organic solution of percarboxylic acid
IPC: C07C409/26
Filed: 1972-09-07
Abstract: 1358333 Percarboxylic acids DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 7 Sept 1972 [13 Sept 1971] 41550/72 Heading C2C Water-free solutions of C 2-4  percarboxylic acids are obtained by (1) extracting aqueous solutions of the percarboxylic acid with C 3-30  phosphoric acid esters; e.g. those of the formula wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are alkyl, aryl or aralkyl radicals, (2) desorbing the extracts with organic solvents having boiling points which are lower than the boiling points of the phosphoric acid esters, and (3) removing water from the percarboxylic-acid-containing desorbate so produced. The percarboxylic acids may be obtained by reacting the corresponding carboxylic acids with hydrogen peroxide.
Patent GB-1130051-A (GB)
Title: Improvements in or relating to tetralol derivatives
IPC: C07J43/00
Filed: 1965-09-30
Abstract: 1,130,051. Tetralol derivatives. G. D. SEARLE & CO. 30 Sept., 1965 [2 Oct., 1964], No. 41604/65. Heading C2C. Novel compounds of the general formula wherein R and R<SP>1</SP> are each an alkyl radical containing from 1-6 carbon atoms, an alkanoyl radical containing from 2-6 carbon atoms, or hydrocarbon-sulphonyl radical, with the proviso that when one of R and R<SP>1</SP> is an alkanoyl, or hydrocarbon sulphonyl radical, the other can be a hydrogen atom, and in addition, R and R<SP>1</SP> can be combined so that they form the residue of a cycloaliphatic amine, are obtained by contacting a compound of the general formula with a vinyl organometallic reagent followed by the hydrolysis of the initial adduct to afford the desired 1-vinyl-1-tetralol.
Patent GB-1046317-A (GB)
Title: Electrostatic coalescence of water droplets in liquid hydrocarbons
IPC: B01D17/06
Filed: 1965-10-04
Abstract: A process for electrostatically coalescing water from liquid hydrocarbons (e.g. jet fuels) comprises providing a high intensity nonhomogeneous electrostatic field in which at least one of the electrodes is coated with a dielectric material to prevent shorting, passing the liquid containing minor amounts of water through the field for a residence time of about 1 sec. to 1 minute and recovering the liquid hydrocarbon free of water.  Preferably, the electrodes are formed by two concentric cylinders, the outer one only being coated with polyethylene, polypropylene or any other material that has a dielectric constant about the same as that of the liquid. Alternatively, the electrodes may be of spherical or spiral forms.
Patent GB-1022373-A (GB)
Title: Improvements relating to control of flow of particulate solid materials through pipes
Inventor: EVESON GEOFFREY FRANK
IPC: G05D7/06
Filed: 1963-10-24
Abstract: 1,022,373. Fluidized beds. HEAD, WRIGHTSON & CO. Ltd. Sept. 24, 1964 [Oct. 24, 1963], No. 42077/63. Heading B2H. [Also in Division G1] Apparatus for separating shale from coal comprises two fluidized beds a, b up through which heated or unheated fluidizing gas passes from gas inlets 3, 4 and 6 to a gas outlet 12, through which particles of less than a predetermined size are carried. Magnetite is continuously supplied at 13 to the lower bed b. The magnetite and shale leave through a pipe 9 containing a rotary gas seal 7, the speed of rotation of which is controlled in response to the amount of magnetite detected by a sensing and control device 5 (see Division G1). The coal leaves through a pipe 14 containing a gas-tight valve 15. Magnetite may be separated from the "sinks" and "floats" and recirculated to the lower bed b.
Patent GB-1529629-A (GB)
Title: Oxygen sensor particularly for use in exhaust system of automotive engine
IPC: G01N27/70
Filed: 1976-10-11
Abstract: 1529629 Solid electrolyte exhaust oxygen sensor NISSAN MOTOR CO Ltd 11 Oct 1976 [9 Oct 1975 12 Feb 1976] 42098/76 Heading G1N In an exhaust oxygen sensor in which a solid electrolyte tube 12 closed at one end and coated with inner 16 and outer 14 porous electrodes is enclosed in a tubular metal shell 18 and includes a metal tube 26 which provides a reference oxygen supply and inner electrode contact, an annular non-conductive ceramic pad 44 of larger internal radius than tube 26 and greater radial width than solid electrolyte tube 12 is arranged in contact with and covering the end of tube 12 and is held in place by tubular metal cap 44 which sheaths the ceramic pad and is fixed at one end to shell 18. This construction prevents access of foreign matter to the solid electrolyte tube. The ceramic pad 44 is preferably of alumina or silica. The seals 20, 22 and 28, 30 preverably comprise alternate layers of refractory non-conductive materials and conductive materials; examples being given.
Patent GB-1169775-A (GB)
Title: Film Splicing Apparatus
IPC: G03D15/04
Filed: 1967-09-19
Abstract: 1,169,775. Splicing apparatus. AGFAGEVAERT A.G. Sept.19, 1967 [Sept.30, 1966], No.42536/67. Heading G2C. A film splicing apparatus comprises a film guide means 2, 3, 4, 5, 6, 7, 8 and 9 extending on both sides of a splicing means consisting of tape rollers 22,and 23, splicing tapes 24, 25, pressure rollers 27, 28 and pressure bars 29 and 30 for holding the two ends of the film in position, at each end of said guide means film guide rollers 12 and 33 provided with end flanges 12a and 12b and pH on each roller at least two pressure rollers, 14, 15, 34 and 35 spaced around the periphery of each guide roller. The pressure rollers may have raised running surfaces 15a, 15b resting on film support surfaces 12c, 12d. The guide roller may at one end be mounted on a slide 10 raised by eccentric wheel 21 so as to cut off the leading edge of a film at cutting edges 9a and 3a before splicing. The trailing edge of the film may be cut off by blade 40 before splicing.
Patent GB-880312-A (GB)
Title: Improvements in and relating to the circulating water systems of steam boilers
IPC: F22B37/34
Filed: 1959-12-15
Abstract: 880,312. Promoting water circulation in steam boilers. MACHINEFABRIEK BREDA VOORHEEN BACKER EN RUEB N.V. Dec. 15, 1959 [Jan. 6, 1959], No. 42550/59. Class 123(2) In a system for promoting, or furthering, the circulation of water through the tubes of a steam boiler a centrifugal water pump 5 and an associated driving steam turbine 1 are located with their axis in a steam and water drum 3 of the boiler, the steam, which enters the turbine 1 through perforated tubes 2, being discharged through a conduit 4 leading to a superheater for the boiler steam. The pump 5, which draws in water from the drum 3 through a perforated tube 6 and discharges it to a conduit 7 leading to the tubes of the boiler, may be introduced as a unit with the turbine 1, into the drum 3 through a manhole 8.
Patent GB-1489428-A (GB)
Title: Organic reagents
IPC: C08F8/02
Filed: 1974-10-02
Abstract: 1489428 Benzylated aromatic hydrocarbons YEDA RESEARCH & DEVELOPMENT CO Ltd 2 Oct 1974 [4 Oct 1973] 42717/74 Heading C2C [Also in Division C3] Compounds of formula in which Z is the aliphatic moiety of a longchain aralkyl compound, x is 0 or 1, n is 1-8, and T represents (i) naphthyl, (ii) pyridyl, (iii) a group of formula (iv) an isomeric mixture of the radicals or (v) a group of formula wherein R is oxygen or sulphur, m is 0-3, and X is nitro, formyl, acyl, carboxyl, alkoxy or halogen; are prepared by a Friedel-Crafts reaction between the aralkyl compound and a compound of formula Y-(CH 2 ) n -T wherein Y is -Cl, -Br, -OH or -COCl. In Example 8, dodecyl benzene is reacted with 4-chloromethyl-2-nitro-phenol in the presence of AlCl 3 .
Patent GB-1025207-A (GB)
Title: Improvements in or relating to eddy-current coupling apparatus
IPC: H02K7/11
Filed: 1962-11-12
Abstract: 1,025,207. Eddy-current couplings. HEENAN, and FROUNDE Ltd. Nov. 12, 1962 [Dec. 26, 1961], No. 42742/62. Heading H2A. An eddy-current coupling apparatus 10 comprises a generally cylindrical rotor 32 having at its outer periphery which is axially shorter than the rotor itself circumferentially spaced pole members 37, 38, a stationary annular field member 57 carrying a ring-shaped field coil 58 radially within the rotor and including an annular extension 71 surrounding one of the ends of the rotor outer periphery, and a rotatable annular inductor 50 surrounding the other end of the rotor outer periphery, the apparatus being such that in operation the magnetic flux path 78 which is radially outside the rotor passes across gaps 51, 72 between its outer periphery and the inductor and the field member extension respectively. The pole members 37, 38 are interdigitated and define radial passages 41 through which cooling air is impelled by blades 55 from axial passages 49, 62 to housing air outlet openings, Fig. 2, not shown. which may be louvre covered. Further, blades 54 on a spider 53 carrying the rotor 31 draw cooling air through a driving electric motor 15 and passages 76, 77 to discharge it partly to the housing openings and partly to the passages 49. Whilst in the embodiment shown, the motor 15 drives the rotor 31 via a shaft 18 and a variable speed output is available at the positions 35 of a shaft 34 keyed to the rotor 32, a drive alternatively may be applied to the shaft 34 in which case the output would be at the shaft 18. Reference has been directed by the Comptroller to Specifications 743,400 and 803,505.
Patent GB-1236992-A (GB)
Title: Luggage case
IPC: A45C13/00
Filed: 1968-03-07
Abstract: 1,236,992. Suitcases. SAMSONITE CORP. 7 March, 1968 [22 May, 1967], No. 42791/70. Divided out of 1,236,991. Heading B8P. A suitcase formed of two moulded polypropylene shells has a. hinge pin 15 offset from the centreline between the shells so that when the lid is opened back, Fig. 5, feet members 50 interfit instead of abutting. The feet are moulded integral with the respective shell. The shells may be coloured and may simulate leather. A stiffening rib R is provided on each shell and an extruded aluminium or magnesium alloy strip M is provided at the edge of each shell. The strips M carry the usual latches and handle. The inside of each shell is covered by a lining stuck to the shell, the edges of the lining being protected by a raised bead (56, Fig. 4). The hinge may be formed by inserting a pin through alternating ears integral with the ribs R.
Patent GB-1383858-A (GB)
Title: Peristaltic pump
IPC: F04C5/00
Filed: 1972-09-15
Abstract: 1383858 Peristaltic pumps ROHE SCIENTIFIC CORP 15 Sept 1972 [16 Sept 1971] 42990/72 Heading F1F A peristaltic pump has flexible and resilient tubing 14 stretched between supports 16 and compressed by rollers 46 comprised in a drum 44, a spring-loaded part-cylindrical platen 60 being furnished with ribs 66 to prevent excessive compression. To compensate for imperfections in the drum rods 32 secured to the platen pass through apertures in a fixed cross-piece 30 that permit the platen limited movement in any direction. Crosspieces 22 and supports 24 for the cross-piece 30 are secured to a housing 10 by wing nuts 28. Rubber stops 20 retain the tubing. Ball or roller bearings 40 for the drum each comprise a flexible and resilient sleeve, Fig. 3 (not shown), lining the inner side of the inner race so that the drum can adopt a position compatible with that of the platen. An electric motor, Fig. 3 (not shown), drives the drum through a chain and a sprocket 38. The tubing may be protected by a length of belting held over the drum by springs, Fig. 7 (not shown). (For Figures see next page)
Patent GB-1358052-A (GB)
Title: Process for producing edible powders
IPC: A23L7/10
Filed: 1971-09-15
Abstract: 1358052 Cereal grass product JAPAN NATURAL FOOD CO Ltd 15 Sept 1971 43091/71 Heading A2B [Also in Division A5] The green leaves of an unripe cereal grass are pulverised, the juice separated therefrom, the pH of the juice adjusted to 6-9, and the juice is then lyophilised or spray-dried to yield an edible powder. Prior to pulverising, the leaves may be soaked in brine or blanched. An emulsion containing edible fat and protein may be added before spray drying. Examples relate to the use of the powder in ice cream, noodles, and steamed bread.
Patent GB-1411391-A (GB)
Title: Process for anodically oxidising the inner niobium surface of a hollow body formed with at least one aperture
IPC: C25D21/04
Filed: 1972-09-18
Abstract: 1411391 Anodizing niobium bodies SIEMENS A G 18 Sept 1972 [18 Sept 1971] 43180/72 Heading C7B The inner niobium surface of a rotating hollow body is anodized whilst partially immersing the body in electrolyte such that all space within the body and above the electrolyte surface is in contact with the outer environment throughout the process, no part of the inner surface is permanently submerged, and a counter-electrode extending through the aperture is positioned such that bubbles formed at the cathode during electrolysis rise to the surface of the electrolyte without contacting the niobium surface being anodized. As shown a hollow niobium body comprising parts 1-5 is positioned to rotate about axis 8 whilst immersed in electrolyte to the level of said axis; a cathode 14 extending into the hollow body and positioned just below the surface of the electrolyte; is mounted on rollers 11, 12; and is rotated by means of motor 9, belt 10 and flange 7 connected to the tubular part 4 of the hollow body. The electrolyte contained in tank 6 may be ammonia. The outer trough 23 may be flushed with liquid for controlling the liquid temperature. Prior to anodizing, the niobium surface may be chemically or electrolytically oxidized. The external surface of the body may be of copper, and may be masked during anodizing.
Patent GB-1367615-A (GB)
Title: Paving machine compactor assembly
IPC: E01C19/48
Filed: 1971-09-16
Abstract: 1367615 Road compacting machines J R BENSON 16 Sept 1971 43306/71 Heading E1G A compactor, moved longitudinally over an asphalt pavement, has a leading surcharge plate 26, a consolidator 41b and a trailing plate 42, the plates 26, 42 being wider in the longitudinal direction than the consolidator so as to prevent upheaval of the asphalt on either side of the consolidator, means being provided for adjusting the inclintaion of the plates and the elevation of the plate 42 and consolidator relative to a frame 20b. The consolidator may be a shoe adjustably fixed to the leading edge of the plate 42 with its lower edge below the surcharge plate, Fig. 4 (not shown) or, as shown, a shoe carried by a beam 50 and vibrated vertically by an hydraulic motor 64 and eccentric weight 63, the beam being vertically adjustable by hydraulic jacks 52 and the amplitude of vibration being adjustable by adjustable biassing springs 59, 60. The underside of the shoe may be flat or inclined. The consolidator may be a vibrating roller, Fig. 13 (not shown). The plate 26 is adjustable in inclination through a screw arrangement 35 and plate 42 is adjustable in height and inclination through two such arrangements and both plates may be heated by hot gasses passed between their upper and lower sides. A diaphragm may be connected between the consolidator and the adjacent sides of the plates, Fig. 11 (not shown). The device may be towed behind a paver, Fig. 3 (not shown), having conveyor belts carrying asphalt to a spreader screw, a strike-off plate and a screed plate. The surcharge plate 26 may form the screed plate of the paver.
Patent GB-892327-A (GB)
Title: Improvements in columbium alloys
IPC: C22C27/02
Filed: 1959-12-22
Abstract: A high-temperature oxidation resistant niobium alloy consists of the following composition by weight:-  .Al.0,5 to 10%, .V.0,5 to 10%, .Ti.1 to 25%, .Cr.1 to 15%, .W and/or Ta.0 to 30%, one or more of Mn, Co, Ni, Fe, Zr and/or Hf ..0 to 10%, one or more of Ba, Si, Be, Y, and/or B rare earth metals 0 to 5%,  Nb and impurities as balance of at least 30%.