baber/WOPTO huggingface dataset:
Patent GB-449686-A (GB)
Abstract: 449,686. Current and pressure meters. STANDARD TELEPHONES & CABLES, Ltd., SMITH, C. H. W. BROOKES-, and WALKER, H. W., 63, Aldwych, London. Jan. 1, 1935, No. 3. [Class 37] [See also Group XL] In an electro-cardiograph comprising electrodes adapted to be connected to a patient, a thermionic valve amplifier, and a cathode-ray oscillograph to which the amplified voltages derived from the patient are applied, the electrodes a, b are connected to the input circuit of the amplifier through a capacity C1, C2 in series and a high resistance R in shunt, means preferably in the form of a key K2, being provided for short-circuiting the resistance when a connection to the electrodes is made, and for removing the short circuit when an indication is required, whereby the apparatus is rendered more rapid in operation. The amplifier circuit is modified in the following ways : (a) to avoid leakage due to the finite insulation resistance of the paper dielectric condensers which are used in the inter-valve coupling, two condensers C3, C4, each of 2 microfarads capacity, and a grid leak R2 of 5 to 10 megohms, are used as shown. (b) The anode voltages for the valves V1, V2 of the amplifier are obtained from a supply several times that required to be applied, and are reduced to the required value by means of resistances R7, R8, a decoupling condenser C7 of large capacity being included. The amplified impulses are applied across the plates x, x of a cathode-ray oscillograph, and when a key K3 is opened, a condenser C8 is slowly charged through a resistance R9 to provide a time base, which may include a neon lamp L as described in Specification 221,338, [Class 37]. A key K4 connected with the key K3 connects, when closed, the focusing-cylinder g to a potential negative with respect to the filament f, and enables the after-glow of a voltage trace to be examined without interference from stray electrons. A calibrating voltage can be applied by a kev K1 which disconnects the electrodes a b and connects transformer T1 to the input of the amplifier. In order to balance out any alternating current picked up from the mains by the patient, a transformer T2 is provided which is connected to a potentiometer circuit consisting of inductances L1, L2, capacities C9, C10, and resistances R9, R10 ; adjustable connections from the resistances R9, R10 are made to opposite ends of a resistance R11 connected to the input of valve V1, so that the resulting neutralizing potentials are applied in series with the leads connected to the patient. In making a photographic record, time marks are made at regular intervals on the record by means of a slotted rotating disc which illuminates three holes arranged adjacent the oscillograph screen. When different pairs of electrodes are provided to be connected to different parts of a patient, the key which connects up the different pairs of electrodes operates a lever which uncovers the second and third holes in succession, so that the different pairs of electrodes are identified according to whether the time marks appear singly, in duplicate, or in triplicate.
Patent GB-1532526-A (GB)
Title: Railway tamping machine capable of travelling along roads and railway tracks
IPC: E01B27/16
Filed: 1976-11-01
Abstract: 1532526 Railway tamping machine FRANZ PLASSER BAHNBAUMASCHINEN - INDUSTRIE GESELLSCHAFT mbH 1 Nov 1976 [10 Sept 1976] 45305/76 Heading E1G A ballast tamping machine capable of travelling along roads and railway tracks comprises a chassis mounted on rail wheel assemblies 10, 11, and provided at one end with a road wheel assembly 13 which is vertically adjustable relative to the chassis, and at the other end with a chassis lifting and supporting unit 16 and coupling device 3 for coupling to a tractor 2 provided with road wheels.
Patent GB-1456823-A (GB)
Title: Process for the treatment of steel strip
IPC: C09K23/38
Filed: 1973-09-28
Abstract: 1456823 Polymeric surface-active agents IMPERIAL CHEMICAL INDUSTRIES Ltd 26 July 1974 [28 Sept 1973] 45433/73 Heading C3R [Also in Division C7] A polymeric surface-active agent is produced by reaction between an aliphatic monohydric C 6 -C 22  alcohol with 1-10 moles/mole of alcohol of a lactone having 3-6 C in the ring and which may be substituted by one or more of lower alkyl, lower alkoxyl, cycloalkyl, aralkyl or aryl, and with 2-30 moles/mole of alcohol of an alkylene oxide. The alcohol is preferably linear and may be n-octanol, lauryl-, cetyl-, stearyl-, oleyl-alcohol or a C 13 -C 15  mixture; the lactone may be #-propiolactone, γ-butyrolactone, #- caprolactone or γ-valerolactone; the alkylene oxide may be ethylene or propylene oxide, epichlorohydrin, 1,2- or 2,3-butylene oxide, (substituted) oxycyclobutane or tetrahydrofuran. Preferably the alcohol and lactone are first reacted at 50-150 C. using a Lewis acid as catalyst, e.g. AlCl 3 , FeCl 3 , ZnCl 2 , or BF 3  (preferably as its diethyl ether complex), followed by reaction with the alkylene oxide; the catalyst may be neutralized for all or part of this second step.
Patent GB-1090448-A (GB)
Title: Heald frames
IPC: D03C9/06
Filed: 1966-10-12
Abstract: 1,090,448. Heald frames. SULZER BROS Ltd. Oct. 12, 1966 [Oct. 12, 1965], No. 45540/ 66. Heading D1E. A heald frame has hollow baulks 11 and intermediate cross members 26 with end pieces 31 and screws 41 which pass through slots 32 in the baulks 11 and secure the members 26 to anchor pieces 38 so that the cross members 26 are longitudinally adjustable in the frame.
Patent GB-1477028-A (GB)
Title: Cryostat
IPC: B65D81/18
Filed: 1974-10-23
Abstract: 1477028 Refrigeration V S OVCHINNIKOV E I GRIGOROV A L MAGDESIAN V I GORELIKOV A V BERMISHEV A S UTKIN V K FEDOTOV and V Y VOLKOV 23 Oct 1974 [25 Oct 1973] 45797/74 Heading F4H [Also in Division B8] A cryogenic vessel 1 for containing a refrigerant, e.g. liquid nitrogen, is formed with a neck 2 provided with a non-metallic stopper 3, a helical channel 4 being provided between the neck and the stopper to allow refrigerant vapour to escape from the vessel. As shown, the vessel 1 is of aluminium alloy and is surrounded by a vacuum-tight casing 5, the space between the vessel and the casing being filled with a vacuum-multilayer insulation 6, e.g. polyethylene terephthalate film aluminized on both sides and backed with glass cloth, and provided with an adsorption pump 9. The neck 2 is made of glass fibre impregnated with phenolformaldehyde resin or of glass cloth impregnated with a mixture of epoxy and phenolformaldehyde resins. The helical channel 4 may be formed as a helical groove in the surface of the stopper or in the surface of the neck, Fig. 2 (not shown). Containers 7, e.g. for biological materials, are supported in the vessel 1 by rods 10.
Patent GB-1298098-A (GB)
Title: Making petroleum coke
Inventor: JAHAN CHRISTIAN
IPC: C10B55/00
Filed: 1970-09-25
Abstract: 1298098 Petroleum coke ESSO RESEARCH & ENG CO 25 Sept 1970 [2 Oct 1969] 45822/70 Heading C5E Petroleum coke is made by coking a tar residue boiling at a temperature above 480‹ C. (reduced to atmospheric pressure) derived by steam cracking a hydrocarbon distillate fraction and distilling off the cracked products boiling below 480‹ C. The tar may be a vacuum residue boiling above 480‹ C. under 40 mm. Hg pressure. In an illustrated embodiment (not shown) the cracked products are distilled in two columns in series, the second dealing with tar from the first, the coker feed passing via a heater to delayed coking drums for treatment at 400‹ to 550‹ C. and 40 to 200 bars for from 1 to 5 hours. Volatiles from the drums may be recycled to the first column. Alternatively, fluidized bed coking may be employed. The product coke may be calcined.
Patent GB-1369866-A (GB)
Title: Methods of making bags
IPC: B31B29/00
Filed: 1971-10-04
Abstract: 1369866 Block bottomed bags INDUSTRIELE ONDERNEMING WAVIN NV 4 Oct 1971 [2 Oct 1970] 46025/71 Heading B8K The block-bottom-shaped top of a bag is provided with upstanding flaps in which handle holes may be formed. As shown, a bag is formed from a sheet having a top gusset by joining the side edges and all four edges of the gusset by seams 8, 8<SP>1</SP>. The block bottom is then flattened and two transverse seams 21, 22 formed to provide the upstanding flaps 29, 29<SP>1</SP> having handle cut-outs 28, 28<SP>1</SP>. In a modification (Figs. 12 and 13, not shown), the bag is formed by sealing the sheet edges together and sealing the gusset edges in pairs. The transverse seams (30, 30<SP>1</SP>) are then formed across the flattened bottom forming upstanding flaps which extend around the entire periphery of the block bottom. Alternatively, triangular end parts of the gusset are folded over before the transverse seams are formed to provide flaps 29, 29<SP>1</SP> as shown in Fig. 9. Reinforcing seams may be provided along the lines 23, 24. The bottom of the bag may be gathered to close it after filling, or may also have a block-bottomed construction, either with or without upstanding flaps, in which case a filling valve is incorporated into one end of one of the block bottoms.
Patent GB-1017710-A (GB)
IPC: A24B15/38
Filed: 1964-11-11
Abstract: 1,017,710. Treating tobacco. R. F. REYNOLDS TOBACCO CO. Nov. 11, 1964 [Feb. 14, 1964], No. 46028/64. Heading A2C. A tobacco or smoking product has added thereto as a flavourant a small amount of 2-acetyl-5-methylpyrrole. The amount added is between 0.001 and 1.0% by weight, and preferably between 0.005 and 0.03% by weight.
Patent GB-1442306-A (GB)
Title: Apparatus for conveying fluid from a lower level to an elevated  level
IPC: F16K15/14
Filed: 1972-10-07
Abstract: 1442306 Cleaning walls R M STEVENSON 8 Oct 1973 [7 Oct 1972] 46385/72 Heading A4F [Also in Divisions F1 and F2] A device for cleaning e.g. walls, motor vehicles, boats, comprises a brush 12, a fexible tube 11 and a non-return valve 20 which is placed in a vessel containing cleaning fluid. The device operates by moving the brush in an ellipsoid or circular path, once the tube has been primed. A spray nozzle may be substituted for the brush.
Patent GB-1321189-A (GB)
Title: Electrical testing
IPC: H04N17/00
Filed: 1971-10-06
Abstract: 1321189 Testing television circuits ROBERT BOSCH FERNSEHANLAGEN GmbH 6 Oct 1971 [7 Oct 1970] 46442/71 Heading H4F To automatically test a television circuit e.g. camera 3, Fig. 1 and items 4, 5 and 6, a test signal, e.g. grey-scale staircase 313, 314, 315, 316, 317 and 4MH 3  black to white burst 318, Fig. 3, produced by a generator 1 is fed to the circuit and the resultant signals produced at the outputs of the various items of the circuit compared at 2 with what they should be and any errors, greater than tolerances stored in computer 8, displayed at 9. In the arrangement Fig. 1, a cross-bar switch 7 enables the input test signal from generator 1 to be compared with the output of either item 3, or items 3 and 4, or items 3, 4, and 5, or the entire circuit. Testing of each individual item is not directly possible. In the arrangement of Fig. 2, the two path cross-bar switch 10 enables the form of the test signal at the input of any item to be compared with its form at the output of the item. In the arrangement of Fig. 4 (not shown) the original test signal can be fed to the input of any of the items and the resultant output of the item analyzed.
Patent GB-1029060-A (GB)
Title: Brake systems
IPC: F16D65/28
Filed: 1963-11-26
Abstract: 1,029,060. Fluid-pressure brakes. ROCKWELL-STANDARD CORPORATION. Nov. 26, 1963 [April 24, 1963], No. 46620/63. Headings F2E and F2F. A brake actuator comprises a casing 67 aligned service (76) and emergency (78) chambers extending oppositely from a common wall 74, a first brake piston 80 being provided in the service chamber and having a connection 92 to operate a brake mechanism, a second piston 98 being provided in the emergency chamber and provided with a piston stem 104 which extends through a central aperture 106 in the wall section 74 to abut the stub portion 82 on the service brake piston 80 in the normal inoperative condition of the brakes, a cover 114 being detachably secured to the outer end of the emergency chamber and housing a plurality of separate springs 128, each spring being received in cylindrical spaces 126 and each compressed between the cover and the emergency piston 98. In the combined emergency and service brake system for a motor vehicle shown in Fig. 1, the system includes an accumulator 30 supplied with fluid under pressure from a pump 26 via a check valve assembly 28 under the control of a driver's brake valve assembly 32, the front wheels of the vehicle being actuated by conventional brake actuators 20 and 22 through a main brake service line 36, 38 and 40, the rear wheels of the vehicle being supplied with brake actuators disclosed in Fig. 2. In operation, as long as there is pressure in the accumulator 30 and a manually operated valve 60 is in its normal position the emergency piston 98 will be held in its fully retracted position by fluid pressure within the chamber 78 and the brakes may be applied in the normal manner by actuating the driver's brake valve 32 which applies fluid pressure to the front brake actuators 20, 22 and to the rear wheel actuators via chamber 76 through the inlet fitting 94 to force the brake piston 80 outwardly. Under emergency conditions, when hydraulic pressure in the accumulator 30 drops below a predetermined minimum due to leakage in the service brake line, the pressure in the emergency chamber 78 drops until the force exerted by the springs 128 over comes the pressure in chamber 78 and the springs will move the emergency piston 98 forwardly to push the service piston 80 forwardly and apply the brakes. A similar condition is achieved when the manually operated valve 60 is moved to a " park " position. After an emergency application due to accidental pressure loss, a tool 140 may be inserted through an aperture 138 in the cover 114 and attached to the piston 98 to manually compress the springs 128 and thereby release the brakes so that the vehicle can be moved for repair. A low pressure warning device 65 is provided in the line 62 from the accumulator 30 to provide a visible or audible signal in the event of the system pressure dropping below 50% of its normal level. Fig. 4 (not shown) discloses a vacuum boosted hydraulic brake system for controlling the operation of service and emergency brakes in a manner similar to that disclosed with reference to Fig. 1.
Patent GB-1200915-A (GB)
Title: Gas tap
Inventor: BARNES HUGH VERNON
IPC: F16K11/22
Filed: 1967-10-12
Abstract: 1,200,915. Valves. RADIATION Ltd. 4 Oct., 1968 [12 Oct., 1967], No. 46646/67. Addition to 1,138,264. Heading F2V. Two or more of the valves of the parent Specification are incorporated in a gas control mechanism with the outlet of the first valve feeding the inlet of the second and at least one of the valves being fully closable. The apparatus has an inlet 6, an outlet 7, a fully closable valve 17, a second valve 18 which throttles flow to the outlet, and a variable cross-section duct (11 Fig. 2, not shown) which by-passes valve 18. In a modification (Figs. 4-7, not shown), the apparatus has three valves (20<SP>1</SP>) controlling an inlet (21) and three outlets 22, 23 and 24.
Patent GB-987677-A (GB)
Title: Improvements in and relating to television receivers
Inventor: JONES SIDNEY CHARLES
IPC: H04N9/18
Filed: 1962-12-14
Abstract: 987,677. Optical systems. FERGUSON RADIO CORPORATION Ltd. Nov. 5,1963 [Dec. 14, 1962 ], No. 47312/62. Heading G2J. [Also in Divisions H1 and H4] A colour television display device, Fig. 1, comprises a plurality of separate phosphor screen areas adapted to emit light in different colours, means for scanning the areas to stimulate the emission of light in accordance with a colour television signal and a plurality of light-transmitting fibre bundles 30, 32, 34 commencing at or adjacent the phosphor areas respectively and terminating at a common viewing surface 36 at which the fibres from the different bundles are intermeshed so as to synthesise the light from the phosphor areas into a coloured image. Each bundle of fibres is made up of a pile of woven sheets which, as shown on an exaggereated scale at 38, comprise light-transmitting warp fibres 40 held together by weft fibres 42. The sheets are layered in cyclic sequence at screen 36 as illustrated in Fig. 2 which shows only the sheets 44 of bundle 34 with the interleaved ends 46 of the sheets of the other bundles. The resulting image is thereby formed with the component colours line interlaced. The sheets are cemented to surface 36, which may be provided with a lenticular, Fresnel or other light diffuser. At the other ends they are either cemented to glass plates 24, 26, 28, which are located adjacent the phosphor areas, or continue to the phosphors. The phosphors may be located in separate cathode-ray tubes as illustrated in Fig. 1, or may be in a common tube provided with one or a plurality of electron guns. In the case of a onegun tube the electron beam is switched between the phosphors in a sequence at line or frame rate. Where the fibres terminate adjacent the phosphors, as illustrated, the cathode-ray tube face plates are also formed from optical fibres. The phosphors may be selected so as to produce the desired component colour lights directly or may be selected to produce white light and operate in conjunction with colour selective filters 18, 20, 22. Such an arrangement may be readily converted to black-and-white image reproduction by removal of the filters. The fibres in the bundles may be spread out so as to magnify the reproduced image or may be arranged to reduce the image prior to subsequent optical projection with magnification by a lens.
Patent GB-1029419-A (GB)
Title: Process for preparing phenols
IPC: C07F7/18
Filed: 1964-11-20
Abstract: Phenols are prepared by oxidizing aromatic hydrocarbons (optionally substituted) with an organic hydroperoxide in presence of a boron compound capable of esterifying the phenol and preferably also an amine and hydrolysing the borate ester formed. The boron compound may be boric acid or anhydride, or an alkyl orthoborate.  When the substituent is hydroxyl the latter group is protected by esterification as a boric ester or etherification with a silanol. Examples describe the production of phenol; o- and p-cresols, methoxyphenols, ethoxyphenols, allyloxyphenols and chlorophenols; catechol and hydroquinone.  Major specified by-products, derived from the peroxide, are benzyl alcohol, cyclohexanol and 1-phenyl-ethanol.
Patent GB-1158848-A (GB)
Title: Nuclear Reactor Installations
IPC: G21D7/04
Filed: 1966-10-21
Abstract: 1,158,848. Nuclear power plant. SIEMENS A.G. 21 Oct., 1966 [21 Oct., 1965], No. 47436/66. Heading G6C. A nuclear reactor installation comprises a reactor core which includes an assembly of converter fuel elements, i.e. fuel elements which are structurally combined with thermionic diodes, the assembly being sub-critical, and a further arrangement of fissile material for rendering the core as a whole critical, heat produced by fission in the reactor core being supplied directly to the thermionic diodes and converted to electrical energy, there being also radiator means for dissipating heat which is not so converted. The sub-critical assembly may form a central zone in the reactor core or, alternatively, the converter fuel elements may be distributed throughout the whole of the reactor core. In the former case, the outer zone may be of either heterogeneous or homogeneous reactor form. In addition to the usual moderator substances (e.g. zirconium hydride), lithium-7 hydride or yttrium hydride can be used. Sodium or lithium can be used as coolant for both the central zone and the casing zone. High-temperature heat radiators are included in the separate coolant circuits for both zones. Alternatively the coolant circuits are connected in series and/or a single common radiator used. One of the radiators may be combined with a thermoelectric converter to provide an additional current source. Regulation is effected by means of control rods in the casing zone, by variation of the degree to which a movably mounted reflector encloses the reactor core, or by alteration of the geometry of the reactor core, more particularly the geometry of the casing zone. The nuclear reactor installation is suitable for use as an energy supply installation in a space vehicle.
Patent GB-1194109-A (GB)
Title: Improvements in or relating to Resilient Expansion Joints
Inventor: WENDT ALFRED
IPC: F16L27/10
Filed: 1968-10-08
Abstract: 1,194,109. Resilient joint. KEMPCHEN & CO. G.m.b.H. 8 Oct., 1968 [1 Feb., 1968], No. 47556/68. Heading F2G. A resilient expansion joint comprises rubber or plastics compensating bellows 1 in the form of a hollow ring of generally circular crosssection provided with means for connection to the pipe line flanges 2, comprising two metallic rings 4 disposed within and secured to the hollow ring and bolted to the flanges by connecting bolts 5 which pass through the walls of the hollow ring. Springs (6, Fig. 2, not shown) may be disposed between the plates and the bellows material may have reinforcing inserts. The Specification also describes and claims a method of making the bellows wherein the pair of metallic rings is set up at a distance one from the other and the bellows material is wrapped around them to form a ring, the material then being vulcanized or polymerized when bonding of the rings 4 to the bellows may occur spontaneously. During the wrapping springs may hold the ring apart, or an auxiliary hose may envelop the rings and be filled with loose material e.g. sand, before wrapping. The loose material is removed when the holes for the bolts 5 are subsequently formed.
Patent GB-1248919-A (GB)
Title: Polyurethanes derived from fatty acid derivatives
Inventor: WOLFF P
IPC: C08G18/38
Filed: 1967-10-12
Abstract: 1,248,919. Polyurethanes. A.M.A.E. EGGERS-LURA, P. WOLFF, and H. KAABER. 14 Oct., 1968 [12 Oct., 1967; 20 Feb., 1968], Nos. 47715/68 and 47716/68. Divided out of 1,247,671. Headings C3C and C3R. Polyurethanes are prepared by reacting a polyisocyanate with a polyol component, a major part of which comprises a reaction mixture of a hydrocarbon fatty acid or an ester thereof with an alcohol having 1 to 4 carbon atoms and a dialkanolamine in which at least half of the fatty acid has been converted into dialkanolamide, the fatty acid containing at least 25% unpolymerized fatty acid. The reaction is preferably carried out in the presence of a blowing agent to prepare rigid polyurethane foams. Suitably the fatty acid is a naturally occurring fatty acid e.g. a tall oil fatty acid mixture, or is one derived from naturally occurring fats or oils. Diethanolamine is the preferred dialkanolamine. It is preferred to react the fatty acid and dialkanolamine until the acid value has dropped to 50% of the initial value. The dialkanolamide-containing polyol may have other polyols admixed, suitably ammonia soaps of a dialkanolamine and a fatty acid. The ammonium soaps may be incorporated by reacting a fatty acid with excess of a dialkanolamine and neutralizing, at least partially, the surplus amine by admixing a fatty acid before polyurethane formation. The blowing agent is preferably a petrol ether which may be mixed with more conventional blowing agents. In a typical example, soybean oil fatty acid is reacted with diethanolamine and the reaction product mixed with a silicone surfactant, dimethylcocosamine, petrol ether and polymethylene polyphenyl isocyanate to form a polyurethane foam.