baber/WOPTO huggingface dataset:
Patent GB-1256357-A (GB)
Title: Process for producing oligomer of a conjugated diene and derivatives thereof
IPC: C07C69/83
Filed: 1968-11-08
Abstract: 1,256,357. Dimerizing dienes. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 8 Nov., 1968 [10 Nov., 1967; 25 Jan., 1968; 30 March, 1968; 3 April, 1968; 8 April, 1968; 8 June, 1968; 18 Sept., 1968], No. 52926/68. Heading C5E. [Also in Division C2] Conjugated dienes are dimerized in the presence of a catalyst comprising (a) an organic palladium compound having a bivalent palladium atom, particularly palladium acetate, propionate, benzoate or acetylacetonate; and (b) a mono- or ditertiary phosphine or arsine, particularly triphenyl phosphine or arsine or tri-n-butyl phosphine. In examples, the main hydrocarbon product starting from butadiene is n-octatriene-1,3,7 with some 4-vinyl-cyclohexene-1. In most of the examples the reactants include an active hydrogen-containing compound and the products include the adduct thereof with butadiene dimer (see Division C2).
Patent GB-1109370-A (GB)
Title: Headbox for web forming machine
IPC: D21F1/00
Filed: 1965-12-15
Abstract: 1,109,370. Papermaking. DOMINION ENGINEERING WORKS Ltd. 15 Dec., 1965 [21 Dec., 1964], No. 53219/65. Heading D2A. A headbox for a paper-making machine in which stock is directed between two wires moving downwardly has a closed-side reaction frame 60 (not shown), 58, 61, 52 lying normal to the stock flow passage 45 and connected to the stock outlet to minimize deflection thereof. Stock flows from tapering headers 43, 44 through slots 41, 42, acceleration passage 49, and explosion chamber 50 to slice 51. The headbox is formed by side wall member 38 secured by a number of pivot pins 53 to frame member 52 which is slidable relative to support 34, and by side wall member 54, 55, member 54 being secured by members 36, 37, to bracket 65 on which frame member 58 can longitudinally slide, and member 55 being pivotally connected to member 54 by hinge plate 56 and adjustably supported by screw and link mechanism 75. The pressure in chamber 45 is maintained constant by varying the width of the chamber by means of pressure cylinders 59 controlled through a piezo-electric crystal mounted in a wall of chamber 45. The reaction frame is carried by frame 30. Lifting jacks 26 and positioning jacks 70 are used to adjust the headbox position.
Patent GB-1087599-A (GB)
Title: Web attachment devices
IPC: G03B21/54
Filed: 1965-12-20
Abstract: 1,087,599. Winding webs. EASTMAN KODAK CO. Dec. 20, 1965 [Dec. 21, 1964], No. 53794/65. Heading B6B. [Also in Division G2] A device for attaching a moving web to a rotatable member 53, having an axial slot 65 to receive the web, comprises a movable guideway 85 which holds the rotatable member 53 against rotation by means of lugs 79 projecting from the axial slot 65, such that on the film's entering the axial slot 65 it is engaged so that it can move only forwards, and then abuts a release means which causes the lugs 79 to be withdrawn into the axial slot 65, thereby releasing the guideway and allowing the rotatable member to rotate, and wind on the web. The film is engaged within the rotatable member 53 by its passing between a biased eccentric roller in contact with a plate. The release means comprises a cross-member within the axial slot and beyond the eccentric roller 69, which member is moved inwards on being abutted by the film, thereby withdrawing the lugs 79 which are coupled thereto. The guide way 85 comprises an upwardly biased pivoted member 86 and a pivoted member 93 which will fall under gravity, the leading edge of the film moving between the two members whilst loading. The rotatable member 53 may have a removable sleeve 80 with an axial slot placed thereover, which is positioned by a pin and slot 80 coupling.
Patent GB-1458961-A (GB)
Title: Preparation of porous metal structures
IPC: B22F3/11
Filed: 1974-12-12
Abstract: 1458961 Making sintered porous metal bodies W R GRACE & CO 12 Dec 1974 [19 Dec 1973] 53871/74 Heading C7D Sintered porous metal bodies such as filters are made from a shaped composition comprising in weight per cent 2-70 of a polyolefin with a molecular weight # 150,000 and a standard load melt index of zero, 29-95 of a metal powder and 3-70 of a plasticizer the plasticizer being extracted by dissolution and after pre-heating e.g. at 240-700C to at least partly remove the polyolefin the shaped composition is sintered. The metal powder may be steel; the polyolefin may be polyethylene or a copolymer of ethylene with a comonomer of propylene, butene -1 and isobutene; and the plasticizer may be mineral oil, diethylene, triethylene, propylene, dipropylene, trimethylene, tetramethylene or 2, 3-butylene glycol, glycerin, glycerol monoacetate, triethyl phosphate, polyvinyl alcohol or polyvinyl pyrrolidone. The components are mixed together by heating to below the temperature at which the plasticizer or polyolefin decomposes and mixing at 30-200 r.p.m. The mixture is then shaped by moulding or extrusion at 125-175C and after extracting the plasticizer with a solvent and preheating at 240-700C the body in the case of steel powder is sintered at 700-900C.
Patent GB-1224519-A (GB)
Title: Vibrators
IPC: H02K33/10
Filed: 1968-11-13
Abstract: 1,224,519. Electro mechanical filters. HATTORI TOKEITEN K.K. 13 Nov., 1968 [13 Nov., 1967], No. 53905/68. Heading H3U. [Also in Divisions G3 and H2] A filter includes an H-shaped vibrator 204, the arms 204a and 204b of which support magnets 208a and 208b, respectively. Balance members 213c and 213d are mounted on the arms 204c and 204d respectively to equalize the masses of the arms and weights 212a-212d evenly distribute the weight on either side of each arm. The base 206 of the vibrator is fixed by a rod 203 to a plate 202 mounted on a plate F. Web portions 207a, 207b provide a coupling between the arms, the input signals being fed to a coil 209a by a lead 214 and the filtered output signal being detected by a coil 209b. Other forms of the vibrator such as an X-shape or a cruciform shape are described.
Patent GB-1370706-A (GB)
Title: Process for the preparation of photographic silver salt emulsions
IPC: G03C1/053
Filed: 1972-11-22
Abstract: 1370706 Preparing photographic silver salt emulsions AGFA-GEVAERT AG 22 Nov 1972 [24 Nov 1971] 54014/72 Heading G2C [Also in Division C3] Photographic gelatino silver salt emulsions e.g. silver halide emulsions are made by precipitating the silver salt in the presence of gelatine, flocculating the emulsion e.g. with a polystyrene sulphonic acid, and then washing the flocculate with water containing a polymer containing disulphonimide groups, especially polymers of compounds of the formula:- is a divalent organic radical of 2-18C e.g. ethylene, phenylene, naphthylene; R 2  is a saturated or unsaturated aliphatic group of up to 18C cycloalkyl, aryl or the group Z 1  -CH= H, COOH or alkyl and Z 2 , Z 3  and Z 4  are each H 3  or alkyl of 1-4C, providing that Z 1  is COOH if Z 4  is alkyl. The polymers may be homopolymers or copolymers of the above compounds with e.g. methyl or ethyl acrylate, acrylamide or acrylic acid. The use of the polymers in washing reduces sedimentation time and silver loss and improves the solidity of the flocculate.
Patent GB-1493353-A (GB)
Title: Device for terminating tachycardia
IPC: A61B5/0402
Filed: 1973-11-21
Abstract: 1493353 Apparatus for terminating tachycardia DEVICES IMPLANTS Ltd 21 Nov 1974 [21 Nov 1973] 54110/73 Heading A5R A device for terminating tachycardia comprises a selective amplifier 2 which receives signals of atrial P-waves via an electrode and triggers via circuit 3 a monostable circuit 4 to deliver output pulses of length 400 ms. preset according to the frequency of tachycardia pulses of a patient, which are applied to a delayed action switch 5, the combination of 4 and 5 being a tachycardia rate detector whose output persists until tachycardia ceases; delayed action switch 5 feeds back a signal to circuit 4 to alter the output pulse length to 800 ms. and also opens a gate 6 which allows stimulating pulses from a blocking circuit 7 through a current-limiting stage 8 to a terminal 1 to the patient, circuit 7 being triggered by the ouput from a variable delay trigger circuit 9 after a time, initially 150 ms., after a P wave is detected but a feedback signal from stage 6 to circuit 9 increases this time by intervals of 10 ms., circuit 7 having a delay to block the circuit for 800 ms. after a P wave, another stimulating pulse being generated if tachycardia persists after 160 ms., following a respective P wave thus, the delay time for successive stimulating pulses progressively increases by 10 ms., there being a pause of 800 ms. after each stimulating pulse, and when the delay time has risen to 250 ms. the next feedback signal from gate 6 causes it to revert to 150 ms. and the cycle is repeated until tachycardia ceases. A modification, Fig. 2 (not shown) to this embodiment includes a variable delay monostable circuit 10 which adds to each output pulse a second pulse at a predetermined later time, the delay being adjusted by manual control 14 of circuit 10. A feedback signal is given for each output pulse. In an alternative embodiment, Fig. 3 a blocking circuit 7a has a pause period of 1.5 s. instead of 800 ms. and a pacing rhythm circuit 21 for the treatment of tradycardia is included. Stimulating pulses are produced if the heart rate is below about 70 pulses per minute.
Patent GB-1427130-A (GB)
Title: Worm metering apparatus
IPC: B65B1/12
Filed: 1974-12-19
Abstract: 1427130 Worm metering apparatus FR HESSER MASCHINENFABRIK AG 19 Dec 1974 [20 Dec 1973] 54794/74 Addition to 1338874 Heading B8A Metering apparatus comprises a worm 6 rotatable in a vertical filling tube 3 within a hollow shaping mandrel 12 of a tubular bag forming machine (not shown) and serves to dispense a metered amount of flowable commodity into each bag. A conical closure member 4 is attached to the lower end 5 of the worm 6 and cooperates with a sleeve 2 moved vertically by a tube 17 to prevent after-trickling of commodity being metered. The tube 17 may be made of metal, resilient plastics material or fabric impregnated with plastics material or rubber. The sleeve 2 may be made of metal or plastics material and may be integral with the tube 17 and of the same material. If the member 17 is made of resilient material and engages the member 4 while the latter is still rotating, the tube 17 is twisted about its longitudinal axis causing a temporary reduction in length of the tube 17, lessening the pressure on the member 4 to reduce wear.
Patent GB-1208378-A (GB)
Title: Improvements in or relating to gas-cooled nuclear reactors
Inventor: NAIRN JOHN SYME
IPC: G21C19/303
Filed: 1968-11-20
Abstract: 1,208,378. Cooling reactor. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 22 Oct., 1969 [20 Nov., 1968], No. 55133/68. Heading G6C. The coolant circuit of a gas-cooled nuclear reactor is provided with magnetic filters which remove dust from the coolant. In a carbon dioxide cooled, graphite moderated reactor, dust constituted mainly of carbonaceous material and oxides of iron, chromium, nickel, silicon and alumina are deposited.
Patent GB-1471720-A (GB)
Title: Rotary positive-displacement fluid pumps
IPC: F04C2/356
Filed: 1974-12-20
Abstract: 1471720 Rotary positive-displacement fluid-machines CAM GEARS Ltd 9 Oct 1975 [20 Dec 1974] 55152/74 Heading F1F In a pump, which may be incorporated in an hydraulic power-assisted steering-system and has a sleeve 17 in an eccentric portion 5 of a rotor 2 co-operating with a spring-loaded roller vane 22, the said portion may be kept in contact with the circumferential wall 11 of the working chamber 14 by at least one spring-loaded pad 19, the sleeve being supported by needle rollers 18, or a plain bearing, such that it has slight freedom of radial movement to compensate for wear or manufacturing inaccuracy. The vane-loading spring 24 is assisted by the pressure of the working fluid in an outlet port 26 and passage 27. The working fluid enters the chamber 14 through a port 25. A side wall 8 may contain a plate 30 which is held against a central block 10 of the housing 1 by fluidpressure in a chamber 33 communicating with the passage 27 through a passage 34. A spring (not shown), may be provided to keep the plate 30 permanently in contact with the block 10.
Patent GB-1474636-A (GB)
Title: Rectilinear motion snap-action mechanism
IPC: G05G5/00
Filed: 1974-12-23
Abstract: 1474636 Cams; linkwork ITT INDUSTRIES Inc 23 Dec 1974 [9 Jan 1974] 55378/74 Heading F2K [Also in Division H1] A rectilinear snap-action mechanism comprises in a frame an input arm 14<SP>1</SP> having camming surfaces 14a<SP>1</SP>, 14b<SP>1</SP> which can engage with detent members 18a<SP>1</SP>, 18b<SP>1</SP> movably mounted in slots in the frame, and an output arm 16<SP>1</SP> having detent slots 16a<SP>1</SP> and 16b<SP>1</SP> into and out of which the detent members can move under the action of the camming surfaces of the input arm and the forces of bias springs 20<SP>1</SP> to hold or release the output arm respectively, both the input and output arms being movable rectilinearly along the same direction in the frame, the arrangement being such that when the input arm is moved initially the output arm is held by the detent 18a<SP>1</SP> whilst a spring 22<SP>1</SP> between the input and output arms is compressed so that when the camming surface 14a<SP>1</SP> on the input arm moves the detent 18a<SP>1</SP> out of the detent slot in the output member to release it, the output member is shot rapidly under the action of the compressed spring 22<SP>1</SP> to follow the input member. The movement of the input and output arms in the frame is constrained by rollers on the arms running in guide grooves in the frame. In a second embodiment, Fig. 12, not shown, to prevent reversal of movement of the input arm whilst the output arm is moving, locking fingers can be provided associated with the camming surfaces of the input arm to trap the detent members whilst the output arm is moving. The output arm operates the contacts of a gas blast switch.
Patent GB-1447552-A (GB)
Title: Connector for a high-frequency coaxial cable
IPC: H02G15/08
Filed: 1973-11-30
Abstract: 1447552 Two-part connector LES CABLES DE LYON 30 Nov 1973 [30 Nov 1972] 55749/73 Heading H2E A connector for a high frequency coaxial cable having an outer tubular conductor and an external insulating sheath comprises an inner ring 25 to secure round the bared end 6 of the outer conductor 2, an end body 24 to engage around the inner ring and the end of the cable, an outer ring 23 secured to the end body 24 around the inner ring, an annular spacer 26 to engage between faces of the inner ring and the end body and a seal ring 22 to provide fluid tight seal between the inside of the cable and the ambient atmosphere, when compressed by the constraint of the inner ring 25 and spacer 26 by the assembly of the outer ring and end body. When the outer conductor is helically corrugated the inner ring may have matching corrugations. The outer ring 23 and end body 24 may be secured to each other by screw thread. The seal may have a radially inward groove 13 as shown to receive the outward turned end of the conductor, or it may be substantially X- shaped in cross-section (Fig. 3, not shown) with the conductor end lying between the seal and a plane radial end face of the inner ring. The usual insulating ring 28 with seals 29 is fitted between the inner contact member 30 and the outer assembly and a stopring 31, welded 32 to the end body, with associated coupling ring 33 is provided to terminate the connector.
Patent GB-1423367-A (GB)
Title: Hydrocarbon conversion process
IPC: B01J31/40
Filed: 1972-12-05
Abstract: 1423367 Isomerizing hydrocarbons EXXON RESEARCH & ENG CO 5 Dec 1972 [21 Dec 1971] 56052/72 Heading C5E A feedstock comprising C 4+  paraffins and/or C 5+  cycloparaffins and containing at least one other component selected from aromatic hydrocarbons, olefins and sulphur compounds is isomerized at 0-150‹ C. in the presence of H 2  or a hydrogen donor and a metal halide catalyst selected from AlCl 3 , AlBr 3 , a fluoride, chloride or bromide of Ga, Sn, Pb, V, Nb, Ta, Cr, Mo, W, a rare earth metal, U, a transuranium metal and mixtures thereof in combination with at least an equimolar amount, based on the metal halide, of HCl, HBr and/or HF. Suitable hydrogen donors are decalin, tetralin and methyl cyclohexane, the amount of H 2  present or produced being at least sufficient to saturate the aromatic 'and/or olefinic impurities. Preferred catalysts are NbF 5  and/or TaF 5  dissolved in HF.
Patent GB-1367650-A (GB)
Title: Fail-safe electronic circuit arrangements
IPC: H03K3/30
Filed: 1971-12-02
Abstract: 1367650 Fail safe oscillator circuits WESTINGHOUSE AIR BRAKE CO 2 Dec 1971 [21 Jan 1971] 56066/71 Heading H3T A fail-safe oscillation generator (e.g. for connection to a railway track to control a warning or barrier at a crossing) comprises a resonant circuit TC including a supply voltage shunt regulating breakdown device D and such that any component failure or any excessive under voltage of the supply will cause the output to cease. In the self-oscillating circuit shown the resonant circuit PC includes the Zener diode D which with normal supply voltage is conducting but which becomes non-conducting when the supply voltage is below the breakdown voltage and therefore terminates oscillation. It is explained how failure of any component will cause oscillation to cease and that by choosing the bias such that symmetrical clipping occurs, any drift of supply voltage does not affect the oscillation amplitude.
Patent GB-1360642-A (GB)
Title: Articles of furniture
IPC: A47C1/034
Filed: 1972-12-05
Abstract: 1360642 Convertible chairs G C RAWLINS 5 Dec 1972 [3 Dec 1971] 56156/71 Heading A4J An upright chair which is convertible into a reclining chair or a bed has back and leg rest portions 7, 9 respectively pivotally connected to a seat portion 6 and simultaneously moveable about their pivotal connections with the seat portion by a hydraulic piston and cylinder unit 13 having opposed piston rods 14, 15 connected through slotted links 17, 18 to the leg and back rest portions respectively.
Patent GB-1207968-A (GB)
Title: Improvements in or relating to electric switch control units for electric motor driven actuators
Inventor: FRY JEREMY JOSEPH
IPC: F16K31/04
Filed: 1966-12-15
Abstract: 1,207,968. Valves. ROTORK CONTROLS Ltd. 2 Nov., 1967 [15 Dec., 1966], No. 56164/66. Heading F2V. [Also in Division H1] In a limit switch arrangement for controlling the electric motor drive of a valve actuator shaft 44 and substantially the same as that of Specification 1,003,761, in which a guided nut 30 is movable between end stops 25, 40 on a threaded spindle 20, one end-stop comprises a pair of nuts 45, 46, Fig. 5, with an intermediate locking washer 47 which is prevented from rotating relatively to the shafts 20 as by a D- shaped hole engaging over a flat 48 on the shaft 20. Projections 51, 53, 54 on the end-stops and nut 30 are arranged to inter-engage at the limit positions to prevent binding between the relatively rotating members. The shaft 20 is hollow and rotatably mounted on an indicator shaft 28 geared at 15, 16 to the actuator output shaft 11. Friction clutch 24 with spring discs 25 is provided for driving the shaft 20 from indicator shaft 28, the pressure on the discs being adjustable by an external clamping nut 26. The arrangement whereby the nut 31 actuates notches 60-62 through striker plates 43, 65, 68 when it partially rotates or engaging an end stop is described in Specification 1,207,967. Lost-motion connections 71, 91 between the striker plates 43, 65, 68 and operation of the switches 60-62 through an overload shaft 75 and indicator shaft 44 are described in Specification 1,207,969. The use of the device with a fluid valve actuator as described in Specification 939,353 is referred to. Reference has been directed by the Comptroller to Specifications 1,003,761,1,003,764, 1,003,765, 1,003,766, 1,011,989 and 1,027,526.
Patent GB-1319160-A (GB)
Title: Gas flow measuring apparatus
IPC: G01F5/00
Filed: 1970-11-25
Abstract: 1319160 Protecting fluid flow measuring devices TELEDYNE Inc 25 Nov 1970 [26 Nov 1969] 56166/70 Heading G1R A gas flow measuring apparatus comprising a main flow pipe 10 with a restriction 12 and a shunt 14 with a restriction 34 and flow measuring device 16 in series, includes means 30, 32, 36, 38 for introducing a second gas into the shunt at each side of the series such that the second gas alone flows through the flowmeter and flows through at a rate which is a function of the rate of flow in the main pipe. As described nitrogen under high pressure is admitted to the shunt through conduits 30, 36 and prevents gas from the main pipe 10 from entering the measuring device. The restriction in the shunt may be a capillary 34 or an orifice plate (35) Fig. 2 (not shown). Preferably the flow is measured by a thermal device in which the temperature of a conduit 18 is measured between two heat sinks 20, 22 through which a current is passed.
Patent GB-1268558-A (GB)
Title: Metal complexes of 2-benzimidazolecarbamic acid esters
IPC: C07D235/32
Filed: 1969-11-17
Abstract: 1,268,558. Pesticides containing metal complexes of benzimidazole-carbamic acid esters. E. I. DU PONT DE NEMOURS & CO. 17 Nov., 1969 [19 Nov., 1968; 21 Oct., 1969], No. 56180/69. Addition to 1,190,614. Heading A5E. [Also in Division C2] Complexes of (a) an organic compound having the formula:- in which R is methyl, ethyl, isopropyl or secbutyl, and (b) one of the salts zinc chloride, zinc bromide, zinc acetate, zinc propionate, copper (II) chloride, copper (II) bromide, copper (II) acetate and copper (II) propionate are used as active agents in fungicidal compositions. These compositions may contain conventional carriers, surface active agents and one or more bactericides, insecticides, acaricides, nematocides, and additional fungicides. Lists of such adjuvants and pesticides are given. Examples are also given of compositions containing one of the complexes and (a) parathion or Diazinon; (b) DDT methoxychlor, TDE or Gathion; (c) Kelthane (reg. Trade Mark), difocol; (d) maneb or Lannate (reg. Trade Mark, methomyl; (e) captan and folpet and (f) toxaphene.
Patent GB-1173018-A (GB)
Title: Polyurethane Compositions Containing Water-Combining Agents
IPC: C08G18/08
Filed: 1966-12-16
Abstract: 1,173,018. Polyurethane compositions. FARBENFABRIKEN BAYER A.G. 16 Dec., 1966 [30 Dec., 1965], No. 56420/66. Headings C3B and C3R. Sulphonyl isocyanates and water-combining agents are incorporated in one-or two-component polyurethane compositions, which are based on polyisocyanates and polyhydroxyl compounds. The composition may also suitably contain pigments and solvents. Suitable sulphonyl isocyanates are p-toluyl sulphonyl isocyanate; p- or m-chlorophenyl sulphonyl isocyanate; phenyl sulphonyl isocyanate, ethyl sulphonyl isocyanate; #-chloroethyl sulphonyl isocyanate; methyl sulphonyl isocyanate; chloromethyl sulphonyl isocyanate and sulphonyl diisocyanate. Conventional aliphatic, cycloaliphatic and aromatic diisocyanates may be used to form the polyurethane as may their reaction products with a deficiency of a polyhydric alcohol and also acylisocyanates, biuret triisocyanates and polycarbodiimides with terminal isocyanate groups. The polyhydroxyl compound may be a monomeric alcohol, polyether polyester or epoxide resin. Synthetic resins, coal tars and asphalts may also be included in the compositions. In the case of unpigmented lacquers it is preferred to combine the solvent with the sulphonyl isocyanate followed by addition of the polyhydroxyl compound and polyisocyanate, or if the polyhydroxyl compound is to be dried this is effected directly with the sulphonyl isocyanate or excess sulphonyl isocyanate is added to the solvent before the addition of the polyhydroxyl compound. With pigmented lacquers the pigment is preferably first treated in the solvent with the sulphonyl isocyanate or if no solvent is to be present the pigment is suspended in the polyhydroxyl compound or a plasticizer before treatment. The sulphonyl isocyanate may be used combined with the polyisocyanate.