baber/WOPTO huggingface dataset:
Patent GB-869086-A (GB)
Title: A process for reducing the tendency of polyamide fibres or filaments to become electrostatically charged
IPC: D06M13/292
Filed: 1959-12-07
Abstract: Compounds having the general formula:  <FORM:0869086/IV (a)/1> in which x is an integer, n is an integer of 3-8 and m is an integer of 10-20, which are used in the antistatic treatment of polyamide fibres (see Group IV(c) ), are prepared by reacting 1 mol. of a meta-phosphoric acid alkyl ester in which the alkyl radical contains 3-8 carbon atoms with 1 mol. of a polyethylene glycol, which may have a molecular weight of 100-1000, and reacting the alkyl polyoxyethylene ortho phosphoric acid ester thus obtained with an alkylamine containing 10-20 carbon atoms. Specified compounds are those obtained by reacting metaphosphoric acid butyl ester with a polyethylene glycol having a molecular weight of 200 or 600 and then treating with stearyl amine.  The products are soluble in alcohol or benzene and may be soluble in water.  Specification 845,688 is referred to.ALSO:Compounds having the general formula: <FORM:0869086/IV (b)/1> in which x is an integer, n is an integer of 3-8 and m is an integer of 10-20, which are used in the antistatic treatment of polyamide fibres (see Group IV(c)), are prepared by reacting 1 mol of a meta-phosphoric acid alkyl ester in which the alkyl radical contains 3-8 carbon atoms with 1 mol of a polyethylene glycol, which may have a molecular weight of 100-1000, and reacting the alkyl polyoxyethylene orthophosphoric acid ester thus obtained with an alkylamine containing 10-20 carbon atoms. Specified compounds are those obtained by reacting metaphosphoric acid butyl ester with a polyethylene glycol having a molecular weight of 200 or 600 and then treating with stearylamine. Specification 845,688 is referred to.ALSO:The tendency of polyamide fibres and filaments to become electrostatically charged is reduced by treating them with a solution or aqueous dispersion of a compound having the general formula:- <FORM:0869086/IV(c)/1> in which x is an integer, n is an integer from 3 to 8 and m is an integer from 10 to 20.  The compounds may be prepared by reacting 1 mol of a metaphosphoric acid alkyl ester in which the alkyl radical contains from 3 to 8 carbon atoms with 1 mol of a polyethylene glycol, which may have a molecular weight of from 100 to 1000, and reacting the alkyl polyoxyethylene orthophosphoric acid ester thus obtained with an alkylamine containing 10-20 carbon atoms.  The compounds may be applied as aqueous solutions or dispersions or solutions in benzene or alcohols at a concentration and in a manner such that, after squeezing, 0,1% by weight of the compound remains on the finished fibres. Specification 845,688 is referred to.
Patent GB-900700-A (GB)
Title: Process for the production of abrasive articles
Inventor: SMITH-GORMAN ROBERT JACK
IPC: B24D3/14
Filed: 1959-12-08
Abstract: In producing abrasive articles, e.g. grinding wheels, hones, dental drills, barrelling chips, an intimate admixture of a particulate abrasive material, powdered clay, micronised mica (i.e. mica of particle size at least 90% less than 15 microns), and, if desired, felspar, is wetted with a bonding solution, formed into shape, e.g. by extrusion or moulding, freed from occluded air e.g. by vacuum treatment and baked e.g. at 1250 DEG C. to 1260 DEG C. in a kiln or electric furnace.  A preferred mix comprises, by weight, (i) 15 to 21% of the abrasive, e.g. aluminous oxide powder or garnet grit of 120-220 mesh size or diamond dust of 80-100 mesh, (ii) 68 to 78% of clay particles preferably smaller than 300 mesh and composed, by weight, of 52 to 60% ball clay and 40 to 48% China clay and comprising 53 to 59 parts by weight of SiO2 and 27,5 to 33,5 parts of AC2O3, (iii) 3 to 5% of micronised mica, and (iv) 4 to 6% of powder felspar, this dry mix being compounded with e.g. 20% by weight, of a bonding solution comprising a glazing mixture, e.g. any standard porcelain glazing or a mixture of 63-69% flint, 28-32% granite, 3-5% flint glan, a wetting agent, an anti-foaming agent e.g. containing silicone, a cadium or other pigment, white lead, borax, water-glass and lime-free water, the moisture content of the wet mix being adjusted, if necessary, by spraying with lime-free water, to a content of 16 to 18% by weight before being shaped and baked.
Patent GB-1488359-A (GB)
Title: Gate valve
IPC: F16K3/314
Filed: 1974-09-26
Abstract: 1488359 Valves; locking nuts ACF INDUSTRIES Inc 26 Sept 1974 [5 Oct 1973] 41826/74 Headings F2V and F2H In a gate valve of the type having a movable gate assembly 30, Fig. 1, comprising two elements 60, 62 which can move relative to each other so as to expand the assembly laterally into engagement with seatings 54 when in the fully open and closed positions, Figs. 2 and 3 (not shown), the element 60 is connected to a stem 48 via a nut 84 which also functions as a stop and abuts the element 62 to prevent further relative movement of the element 60 at the end of the valve-opening stroke. Thus further lateral expansion and the risk of binding the assembly with the seatings 54 is prevented. As shown the elements 60, 62 have wedge-shaped surfaces 66, 64 which cause the lateral expansion of the assembly during relative longitudinal movement of the elements. The end face of the nut closest to the assembly has four notches 94, Fig. 6, spaced apart by 90 degrees and the assembly has a pair of spring- pressed locking pins 96 spaced apart by 135 degrees, whereby the nut is locked in a suitable setting by engagement of an appropriate one of the pins in one of the notches, the pins being depressed by a suitable tool during rotation of the nut. The element 60 is connected to drive shaft 32 in a similar manner, the associated nut then being used for abutment with the element 62 for limiting lateral expansion of the assembly at the end of the valveclosing stroke.
Patent GB-1339725-A (GB)
Title: Polymerization of chlorine containing unsaturated monomers and products thereof
IPC: C08G61/08
Filed: 1970-09-02
Abstract: 1339725 Polymerization of chlorine-containing alicyclic monomers GOODYEAR TIRE & RUBBER CO 2 Sept 1970 [1 Oct 1969] 41918/70 Heading C3P Monomers of Formula (II)  are polymerized by a ring-opening process. In the formula Z represents (a) a vinylene group or (b) a chain of 4 or more carbon atoms, optionally substituted by hydrocarbyl groups or chlorine or forming part of other alicyclic rings, there being in the chain or its substituents at least one vinylene group, which is part of a 4-, 5-, 7- or higher-membered alicyclic ring, but no conjugated double bonds. Polymerization occurs by breaking the main chain of the group Z, or an analogous chain within the group Z as in the polymerization of "Aldrin" (Registered Trade Mark): other unsaturated alicyclic monomers having 4, 5, 7 or more carbon atoms in the ring and no conjugated double bonds may be present. Suitable catalysts are (1) a three-component system comprising (A) an organometallic compound of a metal of Group Ia, IIa, IIb or IIIa, (B) a compound of Mo or W and (C) water, an alcohol, phenol or hydroperoxide or their thio analogues; or (2) a two-component system comprising (A) an organoaluminium dihalide or diorganoaluminium halide and (B) a tungsten compound; or (3) a two-component system comprising (A) an aluminium trihalide and (B) a tungsten compound in which the tungsten is in oxidation state IV to VI inclusive. In catalyst system (3) an organometallic compound may also be added. A trace of an acyclic olefin, e.g. pentene-2, may be present as a molecular weight modifier. The products can be cross-linked e.g. by ionizing radiation or by incorporating conventional cross-linking or vulcanizing additives. The examples describe the polymerization of "Aldrin", of the Diels-Alder adduct of hexachlorocyclopentadiene and 1,5-cyclo-octadiene, alone or with 1,5-cyclooctadiene, and copolymerization of "Aldrin" with cyclo-octene or 1,5- cyclo-octadiene. The catalysts used are WCl 6 / EtOH/EtAlCl 2 , WCl 6 /AlCl 3 , and WCl 6 /AlCl 3 / LiBu.
Patent GB-1089969-A (GB)
Title: Improvements relating to magnetic proximity switches
Inventor: GREEN PETER JAMES
IPC: B61L1/08
Filed: 1965-10-04
Abstract: 1,089,969. Magnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 18, 1966 [Oct. 4, 1965], No. 41999/65. Heading H2B. A switch which may be operated by a movable magnetic member has its magnetic contact unit 6 offset from the main pole faces 4 of the permanent magnet 1, and is normally influenced by " fringing flux " which is weakened when a member such as a wheel flange 18 passes in front of the pole faces 4. The sealed magnetic reed contact unit 6 is retained below a step 5 in the non-magnetic casing 3 by a clip 7 acting on a resilient pad 8. The contact unit 6, clip 7, pad 8 and a terminal mounting strap 11 are encapsulated in a body of cast resin. The permanent magnet 1 is mounted on an adjustable bridge 2 and mounting screws 20, 23, 24 for the housing 3 and support plate 21 pass through elongate holes to permit further adjustment.
Patent GB-984963-A (GB)
Title: Method of carrying out chemical reactions
IPC: B01J19/08
Filed: 1961-11-24
Abstract: 984,963. Treating gases with electric discharges. IONON G.m.b.H. Nov. 24, 1961 [Nov. 28, 1960], No. 42060/61. Heading H5H. A reactive gas is passed through the positive column of a glow discharge maintained under such conditions of applied voltage, gas pressure and electrode spacing that the energy in the positive column is greater than that normally occurring. The apparatus shown comprises an apertured anode 1 and a circular cathode 4 cooled by a stream of liquid 6. Gas 2 is passed through the anode 1 and positive column 3 and leaves through a tube 12 without contacting the negative glow 5. A stream of liquid 11  passing through a jacket 10 maintains the positive column 3 at an optimum temperature for the reaction concerned. Operating characteristics of the glow discharge (Figs. 1 to 7, not shown) and a mathematical analysis are given.
Patent GB-886935-A (GB)
Title: Improvements in or relating to tape recorders
Inventor: STOVOLD FREDERICK CHARLES
IPC: G11B15/22
Filed: 1959-12-11
Abstract: 886,935. Magnetic sound and picture apparatus. DOMINUS (ENGLAND) Ltd. Nov. 3, 1960 [Dec. 11, 1959], No. 42120/59. Class 40 (2). In a reversible tape recorder drive, withdrawable jockey pulleys 5 establish driving engagement between a reversible motor shaft 1 and a supply drum 11a or a take-up drum 11b, respectively, under the control of a V-notched slide bar 13 whose notches 16a, 16b permit the movement under spring tension of one or other of the said jockey pulleys to establish the said driving connection, characterized in that the said notches are so located that the appropriately operated jockey pulley is moved towards its drum obliquely against a tension spring 9a or 9b when moved to the operative position, the out-of-line spring subsequently serving to move the jockey pulley away from the drum when being withdrawn to the inoperative position.
Patent GB-1499791-A (GB)
Title: Method for the catalytical preparation of acrylonitrile
IPC: B01J23/00
Filed: 1976-10-12
Abstract: 1499791 Ammoxidation process UBE INDUSTRIES Ltd 12 Oct 1976 [11 May 1976] 42259/76 Heading C2C [Also in Division B1] Acrylonitrile is obtained by reacting propylene, ammonia and molecular oxygen at elevated temperature, in the gas phase and in the presence of a catalyst of the formula wherein X is vanadium and/or tellurium, the atomic ratio of a : b : c : d : e is from 10 : 3 to 10 : 1 to 7 : 0À1 to 0À7 : À001 to 1 and that of a : f is from 10 : 34À6 to 54À1.
Patent GB-1450677-A (GB)
Title: Seed-dispensing device
IPC: A01C7/04
Filed: 1972-09-13
Abstract: 1450677 Seed-dispensing device R J BARKER and B M BARKER 12 Sept 1973 [13 Sept 1972] 42420/72 Heading AID A seed dispensing device comprising a housing 1, a wheel member 4 rotatable in the direction A about a horizontal shaft 5, and cups 9 mounted on projections 10, the cups 9 dipping into the seeds 7 on rotation of the wheel 4 and each cup 9 generally picking up one seed. At point 14, the seed leaves the cups 9 and enters the exit tube 16. Brushes 13 aid retention of seed in the cups as they are rotated past the top centre position and sweep off any extra seeds in the cups 9. A brush 20 is mounted rotatably in the housing 1 for cleaning the cups 9 and brushes 19 prevent seed from entering the exit tube 16 should the device be tilted. A fine grating 17 is provided through which damaged seed may fall. Seed is adjustably supplied to the housing from a chute and a hopper. The wheel member 4 may be interchangeable and have different sizes and numbers of cups for different seeds.
Patent GB-1116331-A (GB)
Title: Scaffolds or staging for workmen
IPC: E04G1/22
Filed: 1964-10-17
Abstract: 1,116,331. Staging for workmen. D. ILLING- WORTH. 12 Jan., 1966 [17 Oct., 1964], No. 42447/64. Heading E1S. A platform 12 for workmen which is mounted on two lazy tongs 2, 3 side by side, is raised and lowered by cables 13 which zig-zag over pulleys 7 on the lazy tong pivots and are wound on drums 14 to alter their effective length. The drums are operated by a crank handle 24 on the platform. The lazy tongs are connected by spindles 5, 6 at ther pivots, and springs 9 connecting the spindles 5, 6 assist in raising the lazy tongs.
Patent GB-1370141-A (GB)
Title: Composite plastic articles and method and apparatus for making the same
IPC: B29C51/14
Filed: 1971-09-13
Abstract: 1370141 Blow-moulding layered articles E I VALYI 13 Sept 1971 [14 Sept 1970 21 Dec 1970] 42544/71 Heading B5A In a blow-moulding process, a preformed plastics sleeve is placed on a cone, an outer layer is moulded on the sleeve to form a composite parison which is blown in a blow-mould to form a composite article. In Fig. 2, a sleeve 1 is placed on a blow-core 5 and an outer layer 11 is formed thereon and fused thereto in an injection-mould 6 having a neck-ring 7. The bottom 3 of the sleeve 1 may be supported against the surface of the injection-mould cavity. The outer layer 11 and sleeve 1 are then blow-moulded in a blow-mould 12, Fig. 4, by fluid supplied through ducts 13 of core 5. The sleeve may be pre-formed by powder coating, casting or by vacuum-forming from a sheet and supplied to the blow-core from a stack thereof or from a continuous web, being reheated if necessary. The sleeve may be flame-treated, e.g. if polyethylene or laminated to assist adherence to the parison. The parison may be of polystyrene or polyethylene with a sleeve of polyvinylidene chloride, acrylonitrile or methacrylonitrile polymers, polyacetals, ionomer resins, polyallomers, polycarbonates, polypropylene, nylon &c. to provide gas barrier or solvent resistance properties or adherence to the parison. A suitable sleeve comprises laminations of polyethylene, polyvinyl chloride, polyvinylidene chloride and polystyrene, the parison being polystyrene. The core may be made of a soft metal, e.g. aluminium and electrically heated.
Patent GB-1489598-A (GB)
Title: Process for producing zeolite x molecular sieve bodies
IPC: C01B39/22
Filed: 1974-10-03
Abstract: 1489598 Shaped zeolite X bodies W R GRACE & CO 3 Oct 1974 [3 Oct 1973] 43008/74 Heading ClA Shaped zeolite X containing bodies are prepared by (a) mixing zeolite X powder with meta-kaolin clay in proportions in the range: 70 to 90% by weight of zeolite X and 30 to 10 per cent by weight of meta-kaolin; (b) adding to the mixture a sodium hydroxide solution containing 25 to 110% of the Na 2 O stoichiometrically required to convert the meta-kaolin in the mixture of zeolite X, and forming a paste of the zeolite X-meta-kaolin mixture and the solution; (c) forming said paste into shapes; (d) ageing said shapes at 10 to 50 C. for 5 to 40 hours; (e) when the quantity of sodium hydroxide used in step (b) is less than that needed for complete conversion of meta-kaolin to zeolite, immersing the aged shapes in sodium hydroxide solution, thereby providing sodium hydroxide in excess of the amount needed stoichiometrically to convert all the metal-kaolin to zeolite X; (f) maintaining said shapes, when appropriate in the sodium hydroxide solution, at 65 to 110C. for 4 to 20 hours, whereby the major part of the metal-kaolin is converted to zeolite X; (g) washing said zeolite X shapes with dilute sodium hydroxide and/or water to remove any excess free sodium hydroxide; and (h) drying said zeolite X shapes at 95-150 C. for 2 to 24 hours. The zeolite-clay mixture preferably has an average particle size of 0À1-50 microns and the shapes can be granules, spheres or cylindrical extrusions. After drying in step (h) the shapes may be activated by calcining at 250-450 C. for 0À5 to 5 hours.
Patent GB-1025576-A (GB)
Title: Estratriene amino-ethers
Inventor: EVANS DAVID DARWIN
IPC: C07J75/00
Filed: 1964-10-21
Abstract: The invention comprises compounds of formula <FORM:1025576/C2/1> wherein R1 and R2 are hydrogen atoms or methyl or ethyl groups, R3 is a hydrogen atom or an alkanoyl group having up to 4 carbon atoms, and R4 is a hydrogen atom or a methyl, ethyl or ethynyl radical and pharmaceutically acceptable acid addition salts thereof, and their preparation by (a) reduction of the corresponding nitro-compounds, of the corresponding acylamino compounds, optionally with concomitant reduction of a 17-keto group, of the corresponding 17-keto compounds, or of a 17a -ethynyl compound to a 17a -ethyl compound, (b) reaction of a corresponding 17-keto compound with an organometallic compound to introduce a methyl, ethyl or ethynyl group R4, or (c) 17-esterification, optionally through a 17b -(O-MgX) Grignard derivative wherein X is a halogen atom.  The compounds of the invention have antifertility and hypocholesteremic activity. 3-(p-Nitrophenoxy-) starting materials are prepared by (a) reduction of 17-keto compounds, (b) 17a -methylation or ethylation by reaction with the corresponding alkyl lithium, or (c) 17-esterification.  3 - (p - NR1R2 - phenoxy) - 17 - keto - starting materials are prepared by (a) reduction of the corresponding nitro-compound or (b) N-alkylation.  3 - (p - Acylaminophenoxy) - starting materials are prepared by N- and/or 17-acylation.
Patent GB-1395158-A (GB)
Title: Thyristor switching circuits
IPC: H02M1/08
Filed: 1971-09-16
Abstract: 1395158 Supply circuits for AC loads; protecting AC motors RCA CORPORATION 31 Aug 1972 [16 Sept 1971] 423261/71 Headings H2H and H2J A circuit for controlling the power supplied to a load 20 such as a universal motor from an A.C. source comprises a triac 10, a first triggering circuit for providing a triggering signal to the gate electrode of the triac when the source voltage is below a given level and a second triggering circuit for providing a triggering signal to the gate when the source voltage is above the given level. If the load is a 110 volt motor and a 110 volt A.C. supply is connected to terminals A, B, a first R.C. circuit 32, 34 triggers the triac 10 via resistors 40, 42 and a diode 44. However, if a 220 volt A.C. supply is connected across the terminals A, B, a zener diode 52 breaks down to switch on a transistor 50 thereby preventing triggering of the triac by the first R.C. circuit but enabling a second R.C. circuit 62, 64 to provide phase delayed triggering pulses to the triac via a diac 15 so that only 110 volts R.M.S. are supplied to the motor. A modified circuit is described which prevents momentary triggering of the triac by the first R.C. circuit as the capacitor 34 initially charges when the higher voltage is applied to the terminals A, B.
Patent GB-1078057-A (GB)
Title: Improvements relating to a deflection circuit for a cathode ray tube
IPC: H04N3/233
Filed: 1964-10-26
Abstract: 1,078,057. Saw-tooth circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Oct. 26, 1964 [Nov. 2, 1963], No. 43515/64. Heading H3P. In a field deflection circuit for television apparatus, faulty interlacing due to feedback of line frequencies picked up by the field deflection coils is prevented by a series resonant circuit tuned to the fundamental frequency of the line deflection waveform. One or more series resonant circuits tuned to the fundamental and/or harmonics of the line frequency may be connected across the primary or secondary of the field output transformer. The Specification describes a field deflection circuit comprising a free-running multivibrator having linearizing arrangements. The resonant circuit may be tuned by adjustment of the inductor.
Patent GB-1003999-A (GB)
Title: Laminate structures
IPC: B32B27/00
Filed: 1963-11-05
Abstract: Adhesive compositions for laminate structures, preferably of flat or curved glass layers applied, e.g. as safety shields, to or for cathoderay tubes, comprise a diglycidyl ether of bisphenol A, containing on average the residues of more than one bisphenol A molecule, and a polyoxyalkylene polyol containing at least three hydroxyl groups.  The catalyst may be a boron trihalide and a polyoxyalkylene diol may be present.  In the preferred adhesive, the diglycidyl ether has a molecular weight from 344 to 500; the polyol has the formula R[(OCnH2n)x(OC2H4)yOH]m, where R is a polyvalent aliphatic hydrocarbon radical containing 3-12 C atoms, n is 3 or 4, x is from 1 to 19, y is from 0 to 4 and m is from 3 to 8.  The formula of the optional diol is <FORM:1003999/C3/1> where h is 0 to 13, n is 3 or 4 and q is 1 to 52. 14-45% of the diglycidyl ether is mixed with 20-85% of the polyoxyalkylene polyol, 0-50% of a polyoxyalkylene diol and 0.05-0.15% of a catalyst.  A stabilizing agent may be present, e.g. 1.0-5.0% of an aryl phosphite, and the catalyst is preferably boron triflouride, the presence of bubble-producing ether in the final laminating composition being avoided.  The laminating temperature is 60-80 DEG  C.
Patent GB-441881-A (GB)
Abstract: 441,881. Electric signalling systems. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, Liverpool, RAYNER, T. R., 2, Stretton Avenue, Wallasey, Cheshire, and BURNS, G. A., 32, Score Lane, Broadgreen, and WOODHEAD, H. S., 23, Watergate Lane, Woolton, both in Liverpool. July 27, 1934, Nos. 22002 and 29501. [Class 40 (i)] In a system for transmitting to a distance information such as meter readings, a photoelectric cell, adapted to operate the receiving instrument, is illuminated intermittently by impulses of length proportional to the information to be transmitted. As shown, a meter spindle 2 carries a vane 1 which is rotatable so as to obscure more or less of the area of a mirror 3 from light rays received from a source 9 via the optical system 7, 8. The system 7, 8 is supported on an arm 5 driven by a motor 6 and the rotating light falling on the mirror 3 is interrupted by a toothed member 4 to form light impulses which influence the photo-electric cell 10 during the passage of the beam over the unobscured portion of the meter range. Two arms 5 and systems 7, 8 are employed to facilitate continuous scanning, further arms being utilized if desired, provided the range of meter movement is adjusted accordingly. The current interruptions generated by the photo-cell are amplified and applied to the line wires and at the receiver are rectified by a valve, the anode circuit of which includes a highly-damped ammeter in series with a high resistance and shunted by a condenser. The effects of stray currents in the line wires may be eliminated by employing a three-electrode neon tube in the grid circuit of the receiver rectifier. A number of meter readings may be transmitted simultaneously by utilizing different frequencies of current interruption which may be effected either by interrupting the light beams or by employing a circuit interrupter in series with the photo-cell. The indications of several meters also may be summated, the meters being connected in turn to the line by a distributer ; alternatively, the anode circuits of corresponding receiving valves may be fed through a common ammeter. In a modification, a line of light, the length of which is proportional to the meter reading is scanned by a photo-electric cell. Specifications 441,881 and 441,999 are referred to.