baber/WOPTO huggingface dataset:
Patent GB-1078341-A (GB)
Title: Mobile gas liquefaction platform
Inventor: KEITH PERCIVAL CLEVELAND
IPC: F25J3/06
Filed: 1964-11-23
Abstract: 1,078,341. Gas liquefaction plant. HYDROCARBON RESEARCH Inc. Nov. 23, 1964, No. 47593/64. Heading F4P. A mobile methane liquefaction plant comprises a plurality of heat exchangers 44, 54, 55, 56, 66, 68 in series cooled by a multiple stage cascade refrigeration system including compressors 122, 112, 106 and a cooler 128. In operation feed gas from a fixed supply, e.g. a well in the sea bed, having been cleaned in a caustic washer 42, cooled in exchanger 44 traversed by liquid propane, freed of moisture in a separator 46 and in a drier 48 is cooled at 52 in heat exchange with cold overhead gaseous nitrogen and methane from a stripper column 74 at 54, 55, in heat exchange with high pressure liquid propane, at 56 with liquid ethane after which high boiling components are separated at 60 and the remaining gas is liqufied in ethane and methane-cooled exchangers 66, 68 and expanded at 70 into the stripper column 74 from which product liquid methane is withdrawn at 76 and is sub-cooled in liquid methane and liquid nitrogen-cooled exchangers 80, 82. Liquid propane for cooling exchanger 44 is forced from an accumulator 100 through an expansion valve 102 and the propane vapour leaving exchanger 44 together with a portion of liquid propane leaving accumulator 100 is flashed into a first drum 103. Vapour therefrom passes along a line 104 to the inlet of a third stage compressor 106 which delivers through a sea water-cooled exchanger 128 to the accumulator 100. Liquid propane from the base of drum 103 is expanded at 109 into exchanger 54 and the resulting propane vapour together with a portion of liquid propane from drum 103 is flashed into a second drum 110. Propane gas from the latter passes along a line 114 to the inlet of a second stage compressor 112 whilst liquid propane from drum 110 traverses heat exchanger 55 and the resulting vapour passes along a line 119 and through a surge drum 120 to the inlet of a first stage compressor 122. The ethane and methane circuits for cooling exchangers 56, 66 and 68, 70 respectively are similar to the propane circuit. The plant is assembled on a raft which is towed to the site and has telescopic legs by which it rests on the sea bed.
Patent GB-1342805-A (GB)
Title: High performance crimped rayon staple fibre
IPC: D01F2/06
Filed: 1971-10-14
Abstract: 1342805 Crimped rayon fibres ITT INDUSTRIES Inc 14 Oct 1971 [20 Oct 1970] 47837/71 Heading B5B Crimped rayon filaments and staple fibres are prepared from a viscose spinning solution having a viscosity between 80 and 140 ball fall seconds, a salt index of between 2À5 and 6 and containing a mixture of viscose modifiers. The viscose solution is spun at a temperature of 35 to 45 C. into a coagulating bath containing from 4 to 6% by weight sulphuric acid, from 1 to 6% ZnSO 4  and from 10 to 20% Na 2 SO 4 . The filaments, coagulated but incompletely regenerated in this bath, are, whilst still substantially soluble in dilute alkali, stretched by up to 120% of their original length and, during stretching, their regeneration is started by passing them through a hot dilute acid bath. After regeneration is complete, the filaments are cut, if staple fibres are required, or the tension is relaxed to develop the crimp. The resulting filaments or fibres are washed and disulphurized. Modifiers disclosed are dimethylamine and polyethylene glycol.
Patent GB-1260679-A (GB)
Title: Implement frame construction
IPC: A01B63/00
Filed: 1969-09-30
Abstract: 1,260,679. Implement frame. DEERE & CO. 30 Sept., 1969 [30 Sept., 1968], No. 48054/69. Heading A1B. An implement frame, e.g. for a chisel plough, comprises a main frame section 10 hinged at 13 to two outrigger sections 11 and 12 which can be raised and lowered by means of a double acting ram 26, the hinges being constructed so that if the outrigger sections are lowered under the influence of gravity alone they lie in planes inclined upwardly from the plane of the main section 10, whereas extension of the ram deflects the sections 11 and 12 into coplanar relationship with the main section 10. The hinges comprise two plates 31 and 32 journalled together at 34 and attached by means of their outer faces to the frame sections 10 and 12. The plates 31 are wedge shaped so that when the inner faces of the plates 31 and 32 abut, the outer faces extend at an acute angle with respect to each other. The ram is arranged so that it imparts a moment to the outrigger sections in a sense which counteracts stresses placed on those sections by field loads.
Patent GB-1466473-A (GB)
Title: Process for purifying industrial effluents
IPC: C02F1/52
Filed: 1974-11-07
Abstract: 1466473 Purifying effluents CIBA-GEIGY AG 7 Nov 1974 [8 Nov 1973] 48239/74 Heading C1C [Also in Division C3] Industrial effluent is purified by contacting it with an adsorption agent comprising a carrier (in particular cellulose), which has been pretreated with a basic, precipitating agent (as defined), and activated charcoal. Preferably the effluent is passed through the agent, using it as a filter at a temperature of 10‹ to 150‹ C. Specified effluents are from the dyestuff, textile, paper and leather industries. The examples illustrate the removal of various dyes and dyeing assistants from aqueous solution. Carrier materials other than cellulose are asbestos, fuller's earth, diatomaceous earth, polyethylene glycol terephthalate and urea formaldehyde resin. Specified basic precipitating agents are dicyandiamide/urea/formaldehyde resin, ethylenediamine / dicyandiamide / formaldehyde resin, polyethyleneimine and a polyamide-polyamine.
Patent GB-1106516-A (GB)
Title: Improvements in or relating to spiral grinding apparatus
IPC: B24B3/04
Filed: 1965-11-15
Abstract: 1,106,516. Grinding. M. M. WARD. 15 Feb., 1967 [15 Nov., 1965], No. 48498/65. Heading B3D. A spiral grinding apparatus for making spiral cuts in tools, such as reamers, taps, hobs, comprises a workpiece holder 3 rotatably mounted in a headstock 1 mounted on a table 2 for reciprocatory movement past a grinding wheel, the holder being rotated through a predetermined angle and back again during the reciprocating movement so that the point of contact of the grinding wheel with the workpiece follows a spiral path, a sine bar 6 having a block 7 slidable thereon, two cable drums 11, 12 rotatably mounted on a drive shaft 5 of the holder 3, clutch means 26, 27 separately and selectively engageable with the cable drums, pulleys 12 at both ends of a cross-bar 10 connected to the block, and a cable 14 attached at one end to the cross-bar and at the other end to the other end of the cross-bar and wound in a path including both drums and both pulleys so that movement of the cross-bar causes one of the cable drums to rotate faster than the other. The holder 3 is mounted on a shaft 5 rotatable in bearings 4 in the headstock 1. The drum 11 is rotatably mounted on the shaft 5 and has an extension 20, Fig. 3, on which the drum 12 is rotatably mounted. The extension 20 is formed with a collar 23 adjacent a portion 24 on the drum 12. The collar and the portion have recesses 25 and a selector block 26 is axially movable so that spring-loaded pins 27 therein engage the recesses of the collar or portion. The block is formed with a bore slidably receiving a pin 30 on an index plate 28 which is rotatably mounted on the drive shaft 5 and has notches 31 selectively engageable by a spring- loaded latch member 32 carried by a plate 29 fixed to the shaft. The cable 14 is secured by a clamp 15 to one end of the cross-bar, wound 1¢ times around drum 11, around the pulley 13 adjacent the clamp, twice around drum 12, around the other pulley 13, a further 1¢ times round drum 11 and than secured by a clamp 15 to the other end of the cross-bar, tension being applied by a tensioner 16. During reciprocation of the table 2, the block 7 slides along the sine bar imparting movement to the cross-bar so that the cable rotates the drums, the amount of rotation imparted to the drive shaft and workpiece being dependant on which of the cable drums is connected to the shaft by the selector block 26, drum 12 rotating three times faster than drum 11. To prevent backlash during reversal of the reciprocatory movement, an annular member 33 is fixed to the headstook and has wedge-shaped recesses containing rollers 36 which frictionally engage the shaft according to the direction of rotation ; screws are provided to retain the rollers in inoperative positions. The headstock 1 is angularly adjustable in a vertical plane about a pivot 42 and may be angularly adjustable in a horizontal plane to permit grinding of tapered workpieces.
Patent GB-1535429-A (GB)
Title: Anti-skid assembly for a tyre
IPC: B60C27/16
Filed: 1976-11-22
Abstract: 1535429 Anti-skid assemblies for tyres DETWILER CORP 22 Nov 1976 [26 April 1976] 48541/76 Addition to 1469707 Heading B7C The Specification discloses a detachable antiskid assembly similar to that of parent Specification, in which the straps are provided in their central, ground-engaging portions with radially outwardly projecting studs. Also disclosed is an assembly (Fig. 4) comprising a plurality of circumferentially spaced loops, each loop comprising a strap 30 with a stud and a releasable securing cable 40. As illustrated, the cables 40, and cables 32, 34 are braided and one end of each strap 30 of the Fig. 4 embodiment, and both ends of each strap 30 of the Fig. 1 and 2 embodiment, are secured to their respective braided cables by fasteners which include means passing between the parted strands of the cables (Fig. 5, not shown). The cables may alternatively be of materials disclosed in Specification 1,469,707 or of metal, woven fabric, plastic or a combination thereof. Stud constructions (Figs. 11-20, not shown) are disclosed in the Specification.
Patent GB-1029943-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/14
Filed: 1963-01-09
Abstract: 1,029,943. Suction cleaners. ELECTROLUX Ltd. Jan. 9, 1963 [Feb. 2, 1962], No. 48674/65. Divided out of 1,029,942. Heading A4F. In a suction cleaner having a dust collector and a motor fan unit within a housing provided with an air inlet and an air outlet opening with either of which a hose can be associated, the dust collector 113 and the fan unit 114 are disposed side by side in a suction chamber closed by a partition 115 extending above the fan and in which the fan unit 114 is mounted, the fan outlet communicating with a pressure chamber disposed outside a side wall 113A of the suction chamber and having an outlet opening 119 disposed beneath an openable cover 121, which may carry an air filter 128. The illustrated embodiment comprises two fan units 114 side by side.
Patent GB-487737-A (GB)
Abstract: 487,737. Television. MICHAELIS, E. Sept. 22, 1937, No. 25697. Convention date, Sept. 22, 1936. [Class 40 (iii)] Phase displacements between synchronizing signals, when they modulate a cathode-ray tube 6 and when they control a saw-tooth generator 5, are compensated by a phase shift between an intermediate-frequency amplifier 2 and an amplitude filter 3, or between the filter and the generator. Alternatively the phase of the saw-tooth oscillations is displaced. The compensation may be such that the voltages which control the generators lead the impulses which modulate the tube. Between the intermediate-frequency amplifier and the filter, one or more oscillatory circuits L1, C1 are inserted which are detuned from the modulated carrier frequency. Alternatively a transformer, choke coil and condenser, or other regulator of phase is inserted. The regulators of phase may, on the other hand, be inserted before or after the generator. The phase of the picture on the screen of the tube may also be regulated.
Patent GB-1483704-A (GB)
Title: Method and apparatus for electrophotographic reproduction of a latent image
IPC: G03G15/10
Filed: 1975-04-07
Abstract: 1483704 Developing micro-fiche images SCOTT PAPER CO 7 April 1975 [5 April 1974] 49061/75 Divided out of 1483703 Heading G2H After charging and exposing a single frame area of an electro-photographic micro-fiche film, developer is applied only to an inner area of the frame and not to the frame border area. Liquid developer is applied through a masked opening in a developing chamber, the mask sealingly engaging the film preventing developer contacting the border area.
Patent GB-1224964-A (GB)
Title: Improvements in or relating to the production of thermoplastic film
IPC: B29C48/10
Filed: 1969-10-07
Abstract: 1,224,964. Making tubular synthetic polymer films. DU PONT OF CANADA Ltd. 7 Oct., 1969 [8 Oct., 1968], No. 49172/69. Heading B5B. An apparatus for producing tubular films of synthetic organic polymeric thermoplastic materials includes a stationary extruder with an associated stationary annular extrusion die adapted to form a tubular film by meltextrusion, means for inflating the freshly extruded tubular film and thereafter cooling and solidifying it. As shown in the drawing, an inflated, quenched and solidified thermoplastic tubular film is advanced vertically from an annular extrusion die (not shown) to be collapsed by the nip rolls 12 and 13 mounted on an oscillating platform 25. The flattened tubular film then passes under an off-setting idler roll 14 and thence to a skew bar 15 which is also mounted on the oscillating platform 25 and arranged at an angle of 45 degrees to the vertical. This skew bar changes the direction of travel of the flattened film from vertical to horizontal. Idler roll 17 coaxial with the platform 25 which in turn is coaxial with the extrusion die. The axis of the roll 17 is stationary with respect to the stationary take-off assembly 21 so that the distance between idler rolls 17 and 18 is constant. A further change in direction of the flattened tubular film over the skew bar 19 permits delivery of the flattened film to a conventional horizontal windup (not shown). The motor deriven nip roll assembly 22 pulls the film through the complete train of rolls and bars 12 to 19 and is preferably driven by a constant torque device that will generate constant tension in the flattened tubular film. The oscillating platform 25 is driven via the friction drive wheel 23 by a reversing motor mounted below the stationary platform 24 and controlled by limit switches. These may be used to control the amplitude of rotational oscillation to a maximum of about 180 degrees.
Patent GB-1377747-A (GB)
Title: Light sensitive materials
IPC: G03C1/72
Filed: 1971-10-22
Abstract: 1377747 Azido substituted carboxylic acids HOWSON-ALGRAPHY Ltd 17 Oct 1972 [22 Oct 1971] 49297/71 Heading C2C [Also in Divisions C3 and G2]  The preparation of the following acids and their acid chlorides is disclosed: 4-azido-α- bromo-#-chlorocinnamylidene acetic acid (I); 4 - azido - 8 - chlorocinnamylidene acetic acid; 4 - azido - α - cyano - 8 - chlorocinnamylidene acetic acid; 4-azido-α-cyano-cinnamylidene acetic acid; 3-azido-benzylidene-α-cyanoacetic acid; 4 - azido - 2 - chlorobenzylidene - α- cyanoacetic acid; 4-azido-3,5-dibromobenzylidene - α - cyanoacetic acid; 3 - azido - 4- methyl - benzylidene - α - cyano acetic acid; 3 - azido - 4 - methoxy - benzylidene - α - cyano acetic acid; and 4 - azido - benzylidene - α- bromo-cyano acetic acid. In an example I is prepared by reacting 4-azido-#-chlorocinnamaldehyde (cf. U.S. Specification 3,598,844) dissolved in glacial acetic acid with cyano acetic acid. The acid chloride is obtained by further reaction with thionyl chloride.
Patent GB-1002368-A (GB)
Title: Improvements relating to calcium aluminate cements
IPC: C04B28/06
Filed: 1963-12-17
Abstract: A refractory cement composition comprises calcium aluminate cement, sodium bicarbonate and a citrate, e.g. sodium citrate. Preparations specified are 0.05-3% by weight sodium bicarbonate and 0.1-1.5% by weight of sodium citrate, the balance being cement. The calcium aluminate cement may be an under-converted clinker and may contain more than 0.25% of lime.  A refractory aggregate may be included in the composition, e.g. calcined fire clay, chrome ore, kyanite, olivine, vermiculite, and calcined alumina.
Patent GB-1245753-A (GB)
Title: A coupling product of insulin with a diazonium salt of polystyrene
IPC: C08F8/30
Filed: 1968-10-21
Abstract: 1,245,753. Insulin preparations. TAKEDA YAKUHIN KOGYO K.K. 21 Oct., 1968 [19 Oct., 1967], No. 49817/68. Heading A5B. [Also in Division C3] An orally administrable insulin derivative consists of insulin azopolystyrene which is a coupling product of insulin with a diazonium salt of polystyrene wherein the insulin is chemically combined with the phenyl groups of the polystyrene moiety through diazo groups, the insulin content being 10-50% by wt. The polymer may be made by diazotizing a homopolymer of styrene which has been chemically modified to contain amino-groups attached to the aromatic nuclei, with nitrous acid or a nitrite and then diazo coupling with insulin.
Patent GB-1447294-A (GB)
Title: Apparatus for demonstrating electric machines
IPC: G09B23/18
Filed: 1973-10-25
Abstract: 1447294 Educational appliances H BARTH 25 Oct 1973 [27 Oct 1972] 49853/73 Heading G5G [Also in Division H1] An educational appliance comprises a base 3 upon which are detachably mounted at least two electric motors 1 of different types and an eddy-current brake 2 having its shaft 21 aligned with the shafts of the motors 1, all the shafts being provided with coupling units 41, 42 so that the various machines can be coupled together in different arrangements for demonstration and teaching purposes. The motor housings are cylindrical and of equal diameters, the motors being secured to the base by clamping yokes, tensioning strips or a magnetic holding device (Fig. 3, not shown). A D.C. generator may replace the brake 2.
Patent GB-1103519-A (GB)
Title: An information display arrangement
Inventor: JOHNSTON SPENCER GEORGE
IPC: G09F11/28
Filed: 1965-11-24
Abstract: 1,103,519. Indicators. LITTON INDUSTRIES Inc. 24 Nov., 1965 [1 Dec., 19641, No. 50027/65. Heading G4H. A display apparatus comprises an endless tape bearing symbols to be displayed and corresponding groups of coded indicia which may be sensed by means of photo-cells or by magnetic means; each group of indicia is arranged in two rows, one before, and one after the corresponding symbols, the sensing transducers being arranged on either side of a mandrel round which one loop of the tape passes. The tape is driven from a continuously rotating shaft by means of a dog fixed to the shaft and brought into engagement with the tape sprocket wheel upon energization of a solenoid. The tape is driven until the outputs of the transducers correspond with a coded input signal, the comparison being effected by gating circuits. A further transducer aligned with the sprocket holes ensures that the tape only comes to rest when a symbol is correctly displayed in a window. Several display tapes may be arranged in a single apparatus, the corresponding coded signals, e.g. from a computer, being supplied in sequence as the respective tapes are positioned.
Patent GB-500461-A (GB)
Abstract: 500,461. Incandescent igniters. SWISTOUNOFF, 13. Feb. 14, 1938, No. 4590. [Class 7 (iv)] A filament 4, electrically heated when necessary, is exposed to the gases in the combustion chamber; when the pressure is adequate to lift the valve 8 against a restraining spring 13. The time of ignition may be ad justed by a lever 16 acting or the cap 14 covering the spring 13, all plugs of an engine being connected for simultaneous adjustment The rod 17 is graduated.
Patent GB-1127964-A (GB)
Title: Dicalcium ferrite sinter process and product
IPC: C22B1/16
Filed: 1966-11-08
Abstract: 1,127,964. Dicalcium ferrite sinter product. REPUBLIC STEEL CORP. 8 Nov., 1966 [23 Nov., 1965], No. 50067/66. Heading C1A.. [Also in Division C7] A sintered product consisting predominantly of dicalcium ferrite 2CaO. Fe 2 O 3  is made by mixing an iron ore comprising oxides or carbonates and a carbonaceous fuel with limestone and igniting and sintering. Iron ore with a particle size between  inch and fine duct is mixed with a solid carbonaceous fuel (which is preferably coke breeze with a particle size between + inch and 100 US mesh) to give 15- 25% of fuel in the mixture. Limestone is then added to the mixture to give 50-55% limestone, 6-10% of carbonaceous fuel and 34- 40% of iron ore (by weight) the amount of limestone added being calculated from the equation:- the limestone having a particle size # inch and 100 mesh. The mixture also contains water in an amount such that it appears to glisten with moisture. The mixture is then ignited for about three minutes at a temperature between 2000 and 2300 F. and then sintered between 2600 and 2800 F. The product provides a convenient weather-resistant feedstock for iron producing furnaces.
Patent GB-1059240-A (GB)
Title: Toggle mechanism for circuit breakers
IPC: H01H73/44
Filed: 1964-12-10
Abstract: 1,059,240. Automatic circuit-breakers. AIRPAX ELECTRONICS Inc. Dec. 10. 1964 [June 25, 1964], No. 50236/64. Heading H2B. [Also in Division F2] A toggle mechanism comprises a first lever (26) pivotally and slidably mounted (at 30) on a frame; a second lever (40) pivotally mounted (at 42) on the frame and-third and fourth levers (50, 46) pivoted respectively (at 52, 48) to the first and second levers and (at 54) to one another, the third and fourth .levers normally being latched to prevent relative pivotal movement by a pin (60) carried by the third lever engaging with a forked member (56) pivoted (at 58) to the fourth lever and itself prevented from relative movement by a shaft (62) mounted in the fourth lever (46). In an automatic circuitbreaker, the first lever (26) forms the moving contact arm and the second lever (40) isoperable by a dolly (6) to open or close the contacts (22, 24). Upon overload an electromagnet (74) attracts an armature (72), an extension (82) thereof striking a pin (66) to rotate the shaft (62) against a biasing spring (78) to release the forked member (56) and thus to break the toggle and permit the contacts to open under a biasing spring (36).
Patent GB-1125437-A (GB)
Title: Improvements in electrical transformers and reactors
Inventor: FRANKLIN EDWARD BEAUMONT
IPC: F25B21/02
Filed: 1964-12-11
Abstract: 1,125,437. Drying transformer atmospheres. ENGLISH ELECTRIC CO. Ltd'. 22 Sept., 1965 '[11 Dec., 1964], No. 50494/64. Heading B1L. [Also in Division H1] The atmosphere within an electrical transformer 82, which has windings immersed in oil from conservator 81, is dried by means of device 80 which comprises peltier effect thermoelectric elements 89 which are in thermal contact with helical gas passageway 93, 92, 108 and open cylinder 100. Pressure sensing device 99 senses a rise or fall in gas pressure in the system as the level of oil in conservator 81 rises or falls. If the level falls, control unit 99A opens valve 95 and draws atmospheric air into the system through passageway 93, 92, 108 until the pressure is normalized, and the gas flow then circulates in a closed path through lines 84 and 83, and through drier 80. Elements 89 are energized in a time cycle controlled independently by time switch 50 in such a way that the faces abutting structure 90 are cooled below the dew point of the circulating gas, so that ice forms on the surface of cylinder 100 and also in tube 92 if air is being drawn in, thereby drying the atmosphere. Periodically, the polarity of the current to elements 89 is reversed by switch 50, as the result of which the ice which has formed melts and runs down into funnel 46 and out to detachable container 103 through 102 which is opened by bimetallic strip 57 heated by the reversed polarity deicing current supplied to elements 89. If the level of oil in conservator 81 rises and the pressure in the system increases as a result, pressure sensing device 99 activates control 99A to open valve 96 to so exhaust the pressurized atmosphere into the air. A further embodiment which is substantially different in construction, but which embodies the same principle, is also described, and the invention may also be applied to electrical reactors and to dry-type transformers.