baber/WOPTO huggingface dataset:
Patent GB-1344550-A (GB)
Title: Non-destructive electromagnetic energy testing of web material
IPC: G01N22/02
Filed: 1972-09-29
Abstract: 1344550 Electro-physical measurement SPERRY RAND CORP 29 Sept 1972 [4 Oct 1971] 45023/72 Heading G1N The invention relates to H.F. non-destructive testing of a moving web of dielectric material for flows, using the field created by a pulsed transmission line, detecting the energy scattered by the web, and comparing it with the reflected signal from a second channel containing a reference material. As shown the sample and reference transmission-lines comprise strip conductors 2, 5 and ground plane conductors 1, 4. A gated pulse generator 10 provides blocks of fast-risetime impulses which are applied through divider 40 to reference and sample channels A, B. Sampling heads 41A, 41B in the respective channels take, at successive times, samples of the wave form in each channel and compare them in a differential amplifier whose output is connected to a threshold/alarm circuit. In an alternative arrangement Fig. 5 (not shown) for testing low dielectric constant materials the sampling heads may be placed in circuit between the test-lines and the terminations Fig. 5 (not shown). In a further alternative circuit arrangement Fig. 3 (not shown) a single sampling head is used and the test-lines are fed through co-axial lines provided with half-wave stubs, terminating in a short-circuit and an open circuit respectively to produce positive and negative going replicas of the generator pulses, so that the reflected waves subtract at the sampling head. Modifications. The transmission line strip conductors may be curved Fig. 6 (not shown); the base plane may be formed by a pulley. Fig. 7 (not shown) and the alarm circuit may control a paint-spray for marking the flaw.
Patent GB-1556999-A (GB)
Title: Unsaturated carboxylic acids
IPC: C07C261/02
Filed: 1975-10-31
Abstract: Compounds of the formula I, where the symbols are each as defined in Claim 1, and salts thereof are particularly suitable for use as intermediates for preparing pesticides. They are prepared by rearranging an enolate of an ester of the formula II by heating and, if desired, liberating the acid from the salt by acidification. <IMAGE>
Patent GB-1469568-A (GB)
Title: System for the non-rotational engagement and aligned assembly  of a plurality of super-imposed three-dimensional elements
IPC: F21S6/00
Filed: 1974-10-19
Abstract: 1469568 Fishing rods H FASS 19 Oct 1974 45345/74 Heading A1A [Also in Divisions F2 and F4] A fishing rod, which is generally symmetrical about an axis is composed of a number of parts joined together by the interengagement of cooperating formations on the parts, the formations being identical and each consisting of a depression 1 having an integral semi-circular rim 11 so formed that the rims 11 of two adjacent parts can be fitted side by side with each rim seated in the depression of the other part. Preferably, as shown, the ends of each rim are chamfered. The parts are secured together either by a rod or tube having threaded ends for engagement with nuts, or the parts may be secured together by adhesive.
Patent GB-1526478-A (GB)
Title: Furnace exhaust gas treatment process and apparatus
IPC: B01D45/00
Filed: 1976-11-01
Abstract: 1526478 Treating furnace exhaust gas S A DES ANCIENS ETABS PAUL WURTH 1 Nov 1976 [6 Nov 1975] 45351/76 Heading B1W [Also in Divisions F3 and F4] Gas exhausted from the top of a blast furnace 1 is cleaned by a dust bag and cyclone 14, first and second washing stages 18 and 20 and drying stage 22 before passing to distribution conduit 25, a proportion of the gas being bled off from the main path at a point upstream of stage 20, where the gas loses much of its pressure, and being recycled to the furnace via auxiliary washing stage 24, compressors 28, 30 and conduits 9 and 11 to cool and keep free of dust the equipment 2-8 by which ore is delivered to the furnace. Compressors 28 and 30 operate in parallel, compressor 30 being normally in reverse and being switched on automatically if temperature sensors 122, 124 detect an unacceptable rise. The gas passes from the compressors through cooler 108 and dryer 110, and flow through conduits 9, 11 is monitored and recorded by means 114 - 120. Washing stages 20 and 24 may both involve annular passage 'Venturis', and the width of the passage in stage 24 may be automatically varied to maintain a constant pressure drop and degree of gas-purification, the variation being controlled by temperature sensors 122, 124 or flowmeters 114, 116. The recycled gas could be bled off upstream of stage 14 if desired, the object being to minimise the power requirements of the compressors by bleeding the gas off before it has lost much pressure. The hoppers 4, 4' deliver ore to furnace 1 through valves in channels 8, 8' and a spout 2, which is moved by a drive mechanism in chamber 5.
Patent GB-1534103-A (GB)
Title: Vehicle washing machines
IPC: B60S3/04
Filed: 1976-11-03
Abstract: 1534103 Vehicle washing BRENT CHEMICALS INTERNATIONAL Ltd 14 Oct 1977 [3 Nov 1976] 45777/76 Addition to 1443146 Heading B7J In a modification of the vehicle washing machine disclosed in Specification 1,443,146 the vertically spaced spray nozzles are replaced by sets of nozzles each one of which is fixed to the frame and inclined to a plane normal to the vehicle centre line with each side of the frame having a set inclined to one side of the frame and a set inclined to the other side of the frame, liquid being supplied selectively to one set or the other set of nozzles.
Patent GB-1108711-A (GB)
Title: Improvements in and relating to filter systems
Inventor: FLOYD TERENCE JOHN
IPC: B01D46/04
Filed: 1964-11-11
Abstract: 1,108,711. Fluid filtering system. SERK R. & D. Ltd. 11 Nov., 1965 [11 Nov., 1964], No. 45913/64. Heading BID. Two fluid filters 8, 9 are connected downstream of a coander device 22 .. 28 which switches fluid input from one to the other continually, and each encloses a bellows-actuated piston which contracts in response to commencement of flow through the other, by virtue of constrictions 20, 21 and ducts 18, 19, to force filtrate back through its filter. In Fig. 3. not shown, two flat annular mesh filters (30, 31) are located in a common housing with a common outlet between them, separate inlets beyond them and a double diaphragm. (37, 38) carrying an open-ended sleeve (35). Flow through one filter reaches outlet (32) through perforations in the sleeve, but moves the diaphragms until one end of the sleeve is closed by a projection (33 or 34) whereafter further movement forces fluid back through the other filter.
Patent GB-1014968-A (GB)
Title: Production of aminophenols
Inventor: ENSOR GORDON ROY
IPC: C07C215/76
Filed: 1963-11-22
Abstract: An aminophenol or aminophenate is produced by contacting a nitrosophenate solution with hydrogen in presence of a hydrogenation catalyst. The production of p-aminophenol is exemplified, but o-aminophenol and aminocresols are also mentioned.  According to the Provisional Specification, the use of e.g. sodium hydrosulphite is an alternative to catalytic hydrogenation.
Patent GB-1324606-A (GB)
Title: Extrusion
IPC: B21C25/02
Filed: 1970-09-30
Abstract: 1324606 Extruding WESTERN ELECTRIC CO Inc 30 Sept 1970 [1 Oct 1969 (2)] 46491/70 Heading B3P In a hydrostatic extrusion process the hydrostatic fluid is allowed to flow between the head end surface 67 of the billet 65 and the surface 63 of a die element 62 during extrusion so as to be pressurized and deform the billet in the extrusion zone. The fluid between the surfaces is pressurized by. movement of the die element into the pressure chamber 51 which also causes the fluid at the rear of the billet to be pressurized. The die element 62 is mounted on a plunger 58 and has sealing rings 72, 73. The billet material does not contact the die surface 63. The fluid may be castor oil or silicone oil. The billet is sized to fit closely in the chamber 51 so that there is a restricted or no flow of fluid from the head end of the billet to the rear end. The arrangement is such that if the resistances of the metal increases the spacing of the surfaces decreases and hence the applied fluid pressure increases to automatically keep the extrusion rate constant. The shape of the die surface may be linear or non-linear and empirically determined.  In an alternative embodiment, Fig. 7, the fluid acting on the head end of the billet is  isolated by seals 95, 97 from the fluid acting on the rear end 116 during extrusion. The seal 95 allows fluid flow between the chambers 87, 99 through a duct 104 before full insertion of the billet. The die element 101 is advanced into the pressure vessel 83 by a ram 106 to effect extrusion. In a further embodiment, Figs. 9 and 10, the die element has a set of outlets 245 on its surface to supply pressurized fluid to a zone of the billet head which has the greatest resistance to deformation. This zone is determined experimentally from a graph of fluid pressure against billet head radius. The die element has bores 246 from a chamber 250 supplied with fluid through a check valve 255. A shoulder 215 defines a second chamber 260 connected by passages 234 to the die surface. When the die element is advanced the fluid flows from the chamber 250 to the chamber 260 via the bores 246 and the die surface.
Patent GB-1523718-A (GB)
Title: Process for protection of thermoplastic sheet
IPC: C09K3/16
Filed: 1975-09-30
Abstract: 1523718 Thermoplastic sheet laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Sept 1975 [31 Oct 1974] 47117/74 Heading B5N A rigid thermoplastic sheet having an antistatic surface carrying a temporary protective layer is produced by treating the thermoplastic sheet, e.g. of polymethyl methacrylate or polyvinyl chloride, with an antistatic agent, e.g. an alkyl pyridinium bromide, and then adhering thereto a flexible thermoplastic layer having a lower softening point than the thermoplastic sheet by intimately contacting the sheet with the thermoplastic layer by means of an applied pressure whilst the layer is in the heat softened condition, e.g. using rollers. The flexible thermoplastic layer may be a polyethylene film, which may have been subjected to corona discharge treatment, or a sheet of paper coated with polyethylene. The antistatic agent may be applied in the form of a dilute aqueous solution by spraying. A flexible thermoplastic layer may be applied to each surface of rigid thermoplastic sheet.
Patent GB-1523159-A (GB)
Title: Heat exchanger
IPC: F24H1/24
Filed: 1975-11-17
Abstract: 1523159 Fluid heaters F GIOVENALE 17 Nov 1975 [19 Dec 1974] 47217/75 Headings F4A and F4S A fluid heater (e.g. for water or air) comprises a chamber 9 for fluid to be heated arranged above a burner 7, a combustion gas passageway 2 extending up into the chamber and a further combustion gas duct defined between the chamber and an outer wall 3; overlapping baffles 4, 4<SP>1</SP> on the wall 3 causing the gases in the outer duct to follow a tortuous path. The apparatus shown is a water heater with a water inlet 8 shielded from the burner by a refractory plate 14. The baffles 4, 4<SP>1</SP> extend alternately from opposite sides of the wall 3 and the wall is provided with a layer of insulating material (e.g. asbestos) which in turn is protected by thin metal sheetings. Portions of the wall 3 can be removed to allow maintenance. A safety valve 12 weighted at 11 prevents the build-up of excessive pressure in the chamber 9.
Patent GB-1140649-A (GB)
Title: Process for the polymerization and the copolymerization of olefines
IPC: C08F10/00
Filed: 1967-10-17
Abstract: 1,140,649. Polymerizing olefins; aftertreated polymers; polymers containing magnesium. SOLVAY & CIE. 17 Oct., 1967 [21 Oct., 1966; 1 Sept., 1967], No. 47249/67. Headings C3P and C3R. Olefin polymers are made by polymerizing one or more olefins in the presence of a catalyst comprising an organometallic compound and a solid material obtained by chemically reacting at a temperature between 40‹ and 180‹ C., in the absence of a liquid diluent, a liquid halogenated compound of a transition metal and a solid support comprising an oxygen-containing compound of a divalent metal which is anhydrous and substantially free of hydroxyl groups. The solid support may be an oxygen-containing compound of Mg, Ca or Zn such as a simple or complex oxide, sulphate, nitrate, phosphate, silicate, mono- or polycarboxylic organic acid, or a salt of a macromolecular compound, e.g. polymers of acrylates, methacrylates, maleates, fumarates, or itaconates. The preferred transition metal compounds are TiCl 4 , VOCl 3  and VCl 4 . The olefins may be ethylene, propylene, and mixtures thereof. Magnesium polyacrylic acid is made by dissolving polyacrylic acid and tetrahydrated magnesium acetate in methanol and pouring the acid solution into the acetate solution with agitation. The precipitated magnesium polyacrylate is subsequently reacted with pure TiCl 4 . Magnesium polysebacate is obtained by reacting melted sebacic acid with magnesium oxide. The polymer subsequently is reacted with titanium tetrachloride. Magnesium polyterephthalate is obtained by reacting a solution of terephthalic acid in dimethyl formamide with a solution of tetrahydrated magnesium acetate also in dimethyl formamide, and heating the precipitate under reflux. The polymer subsequently is reacted with titanium tetrachloride.
Patent GB-1033286-A (GB)
Title: Alternating current track circuit system
IPC: B61L1/18
Filed: 1964-11-20
Abstract: 1,033,286. A.C. track circuits. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Nov. 20, 1964 [Dec. 20, 1963], No. 47447/64. Heading B7N. [Also in Division H2]  An A.C. track circuit system supplied at terminals 10A with alternating current at mains frequency comprises a transmitter 10 which supplies the track section 2 with a signal at a frequency which is a fraction, e.g. one half, of the mains frequency and a receiver 11 which connects the signal received from the track section to a signal at mains frequency for application to one winding 14A of a two-element type track relay, the other winding of which is connected to the mains supply via a phase-adjusting circuit. The transmitter, Fig. 2 (not shown), includes a bi-stable multivibrator which is triggered by squared mains frequency signals to supply signals at half the mains frequency which are converted into two trains of short duration pulses, phase displaced by 180 degrees, which control a pair of rectifiers connecting the mains supply to the track section. The rectifiers act to pass alternate positive and alternate negative half-cycles of the mains supply. The receiver, Fig. 3 (not shown), includes a vibrated unit energized from the track circuit and a contact of the unit connects a D.C. supply, obtained by rectifying the mains supply, alternately to two halves of the primary of a transformer. An output from the transformer at twice the track circuit frequency, i.e. the mains frequency, is connected to one winding of the relay.
Patent GB-1358460-A (GB)
Title: Forage harvester
IPC: A01F29/06
Filed: 1972-10-16
Abstract: 1358460 Forage harvesters DEERE & CO 16 Oct 1972 [4 Nov 1971] 47641/72 Heading A1F A self-propelled forage harvester comprises a detachable header 30 feeding crop to a chopper 32 from whence the crop is fed to a blower 36 via a conveyer 34 which is readily detachable from the harvester so that access can be gained to the transmission unit 26. The conveyer 34 consists of two helical auguers and is supported at its front end by brackets 130 via pins 142 and at its rear by brackets 134, 136 and pins 150, 152, so arranged that the front pins can first be removed and the front of the conveyer lowered before the rear pins are removed. Radial paddles 122 transfer the crop from the augers to the blower. A chain coupled to the chopper shaft drives the conveyer augers through helical gearing and incorporates an idler wheel which can be moved to allow removal of the chain before the conveyer is removed.
Patent GB-1040549-A (GB)
Title: Coating composition and process
IPC: D21H19/54
Filed: 1963-12-03
Abstract: An aqueous paper coating composition comprising clay and starch is modified to produce improved wet rub resistance by reacting the starch with 5-10% of dialdehyde starch which is 90-100% oxidized. The composition may contain 32-40% of clay plus starch.  The proportion of starch based on the clay may be 12-18%.  The clay may be dispersed with the aid of disodium phosphate.  The starch may be an acid-modified or hypochlorite-oxidized starch. The pH may be maintained at about 7 during reaction.ALSO:An aqueous paper coating composition comprising clay and starch is modified to produce improved wet rub resistance by reacting the starch with 5-10% of dialdehyde starch which is 90-100% oxidized.  The composition may contain 32-40% of clay plus starch.  The proportion of starch based on the clay may be 12-18%.  The clay may be dispersed with the aid of disodium phosphate.  The starch may be an acid-modified or hypochlorite-oxidized starch. The pH may be maintained at about 7 during reaction.ALSO:An aqueous paper coating composition comprising clay and starch is modified to produce improved wet rub resistance by reacting the starch with 5-10% of dialdehyde starch which is 90-100% oxidized.  The composition may contain 32-40% of clay plus starch. The proportion of starch based on the clay may be 12-18%. The clay may be dispersed with the aid of disodium phosphate.  The starch may be an acid-modified or hypochlorite-oxidized starch. The pH may be maintained at about 7 during reaction.
Patent GB-1151243-A (GB)
Title: Slab Heating Apparatus
IPC: F27B9/40
Filed: 1966-10-25
Abstract: 1,151,243. Controlling reheating furnace. WESTINGHOUSE ELECTRIC CORP. 25 Oct., 1966 [8 Dec., 1965], No. 47777/66. Heading F4B. [Also in Division G3] In a furnace for reheating metal billets for rolling, the speed of travel and temperature of the billets passing through the furnace are sensed and the conveyer for the billets and the heating of the furnace are controlled by a computer in accordance with sensed values and predetermined data fed to the computer. Billets, which may come direct from a continuous caster, or from a slab yard, are passed in turn through a fuel-fired furnace and an induction furnace. The furnaces are each divided into zones, and the fuel and air or electricity supply to each zone, and the drives RD to the roller conveyers are controlled through a computer C which is fed with cards representing the size, origin, starting temperature and desired finished temperature of each billet. The system provides for billets from the slab yard and caster being fed irregularly, and for holding slabs within the furnace during a delay.
Patent GB-1284758-A (GB)
Title: Method and apparatus for transporting liquefied gas
IPC: B60P3/22
Filed: 1969-09-30
Abstract: 1284758 Liquefied gas tankers FRUEHAUF CORP 30 Sept 1969 [29 Oct 1968] 47937/69 Heading F4P A tanker vehicle has inner and outer shells with insulation such as foamed polyurethane therebetween and is provided with a pressure relief valve to establish a working pressure. A charging line associated with the vehicle is provided with a pressure relief valve set to a lower pressure than the working pressure so that source pressure build up is allowed for during transit.
Patent GB-1110532-A (GB)
Title: Improvements relating to a machine for granulating thermoplastic plastics
IPC: B29B9/06
Filed: 1965-11-11
Abstract: 1,110,532. Extrusion granulators. BARMER MASCHINENFABRIK A.G. 11 Nov., 1965 [20 Nov., 1964], No. 47942/65. Heading B5A. [Also in Division B3] An extrusion granulator comprising an annular multi-orificed die plate (8), Fig. 1 (not shown), and an axially retractable cutter head (2), also comprises a grinding attachment which is mountable on a collection or water chamber (6). As shown, the granulator is inoperative and cutter head 2 is in its retracted position, the grinding attachment being held by a clamp 10, 11 to chamber 6 and grinding wheel 17, directly attached to the shaft of an electric motor 15, being inserted through an opening 9 in the chamber into proximity with blades 1 of head 2. The grinding wheel 17 may be moved transversely of head 2 by sliding movement of carriage 18, 19 in support 20 and parallel to the granulator drive shaft by movement of a slide 14 in support 13. In a modification wheel 17 may be driven by a flexible shaft supported by carriage 19, the motor being mounted independently of the carriage.
Patent GB-1299907-A (GB)
Title: Crane safety systems
IPC: B66C23/90
Filed: 1970-10-08
Abstract: 1299907 Signalling overloads in cranes LITTON INDUSTRIES Inc 8 Oct 1970 [8 Oct 1969] 48005/70 Heading G4H [Also in Division B8] A mobile jib crane is provided with a safety device which gives warning of excessive load for the particular operating conditions. The operator sets a switch 50 to indicate boom length and a switch 52 to indicate either tyres or outriggers support. Sensors 36, 44, 54 respectively produce signals representing the slowing angle quadrant, the boom angle and the boom load. A computer 42 comprises a memory unit 76, with an information input circuit 84, which provides a signal representing the maximum allowable load for the particular combination of crane parameters set and sensed. This is compared with the boom load signal from the sensor 54 and at 85% of the allowable load an alarm 72 is actuated. An alarm 74 is actuated at the maximum allowable load.
Patent GB-1067500-A (GB)
Title: Electrodialysis
Inventor: DUBEY GEORGE A
IPC: D21C11/02
Filed: 1963-12-06
Abstract: <PICT:1067500/C6-C7/1> Fig. 1 shows an electrodialysis cell 3 wherein liquor to be electrodialyzed is fed to a frame 13 (a frame being a compartment between two membranes or between a membrane and an electrode), having on one side an anion concentrating frame 9 and on the other side a cation concentrating frame 17 (these three frames 9, 13, 17 together being referred to as a treating frame).  Three similar treating frames (9, 13, 17) (9', 13', 17') and (9", 13", 17") are separated from one another by barrier frames 23, 23' through each of which is passed a barrier solution containing ions which aid the passage of electric current and which may be used in the desired operation, e.g. solutions containing H2SO4, H2SO3 or CH3COOH. Membrane 11 is non-selective, 15 is cation selective, 19 is anion selective and 25 is cation selective. Fig. 2 (not shown) illustrates an electrodialysis cell (103) similar to that of Fig. 1 but which differs in having three anion concentrating frames (109a, b, c) separated from one another and from a liquor frame (113) by non-selective membranes (111 a, b, c) which allow molecules to pass in their order of decreasing molecular weight. Treating frames, each comprising anion concentrating frames (109, a, b, c), a liquor frame (113) and a cation concentrating frame (117) are built up into a stack with barrier frames (123) interposed between treating frames and with an additional anolyte frame (106) adjacent the anode and a catholyte frame (146) adjacent the cathode. Spent sulphite liquor from paper making may be electrodialyzed; such liquor contains lignosulphonates of varying molecular weights, wood sugars, SO2 and basic ions such as Na+, Ca++, Mg++ and NH4+.  Alternatively salt-protein systems such as milk, blood or whey may be electrodialyzed. Particular examples relating to both Figs. 1 and 2 are for electrodialysis of an ammonia base spent sulphite liquor having a solids content of about 10%.  The solutions were circulated through their frames at such a rate as to establish turbulence.