baber/WOPTO huggingface dataset:
Patent GB-1388649-A (GB)
Title: Apparatus and method for makring fibreglass grating
IPC: D04H3/12
Filed: 1973-10-30
Abstract: 1388649 Resin-fibreglass grating M & M INTERNATIONAL PLASTICS Inc 30 Oct 1973 50343/73 Heading D1R Apparatus for making a resin-fibreglass grating comprises a form 15 provided with one set of spaced parallel open-ended slots 17 and a second set of spaced parallel open-ended slots 18 at an angle, preferably 90‹, to slots 17, a first laying arm 19 rotatable about its pivot 20 in a direction parallel to slots 17, a second laying arm 22 rotatable about pivots 23 and projectable and retractable horizontal detents 37 engageable by the strands 12, (13, Fig. 6 not shown) to facilitate their deposition. The arms contain apertures 21, 24 aligned with the slots through which strands 12, (13) are fed from reels mounted above the arms. Preferably baths (39, 40, Figs. 7, 8 not shown) are interposed between the reels and the laying arms to coat the threads before they are laid. Alternatively the -threads may be laid without resin and the grating impregnated in the mould.  From the position shown fluid cylinder 25 swings arm 19 through 180‹ thereby laying threads 12 in slots 17. Bars 31' at the left hand end of slots 17 are slid by fluid activators 38 so that detents (37', Fig. 4, not shown) extend across the slots in the way that detents 37 are shown closing slots 18. Arm 19 is swung back, thereby laying a second array of threads 12 which are held down by extending the right hand side detents (37'). Arm 22 is then energised to deposit two successive stretches of strands (13) in slots 18 thereby completing one cycle of operations.  The grating is transferred to the heated mould of a press for compression and curing. It is ejected from the form 15 by a grid (47, Fig. 4, not shown) normally flush with the bottom of slots 17, 18. In the embodiment of Fig. 8 (not shown) the grating is ejected, received by a transfer device (49) similar to form 15 but mounted upside down, the device (49) is moved to a position above the mould and the grating is ejected. In the embodiment of Fig. 9 (not shown) form 15 is hinged to enable it to be inverted prior to ejecting the grating.
Patent GB-1011617-A (GB)
Title: Method of and apparatus for utilizing waste heat of gas generated from an electric smelting furnace
IPC: F27D17/00
Filed: 1963-12-20
Abstract: <PICT:1011617/C1/1> Calcium carbide is made by heating a charge containing unburnt limestone in an enclosed electric resistance furnace, Fig. 1.  The gases evolved are burnt with air or oxygen enriched air admitted through a dampered port 3 so as to provide a high enough temperature to enable limestone to be used in place of quicklime. Additional fuel may be supplied with the air, which may be delivered tangentially or through an air-cooled protective jacket for an electrode holder.  A preheating shaft furnace having a suction fan connected to its flared upper end and a table feeder at its lower end may be connected to the electric furnace, Fig. 5, not shown.
Patent GB-1521008-A (GB)
Title: Additives for zinc plating baths
IPC: C25D3/22
Filed: 1976-12-06
Abstract: 1521008 Zinc plating baths R O HULL & CO Inc 6 Dec 1976 [15 Dec 1975 23 Jan 1976] 50803/76 Heading C7B [Also in Division C3]  A product for incorporation into aqueous alkaline zinc plating baths is obtained by reaction of (a) one or more piperazines of the Formula: wherein R and R<SP>1</SP> are each H or a C 1-4  alkyl radical and (b) ammonia and/or one or more acyclic aliphatic primary amines with (c) formaldehyde and (d) an epihalohydrin or glycerol halohydrin or a mixture thereof. Preferably there are used 0À75 to 3 moles of (a) per mole of (b), and the molar ratio (a):(b):(c):(d) is most preferably 1À1:(2-4À5):1. In the Examples 0À1 mole of ethylene diamine, 30% aqueous ammonia (Example 2), 40% aqueous methylamine (Example 3), or quanidine hydrochloride (Example 6) and 0À1 mole of piperazine or 2-methylpiperazine (Example 4) are added to 50-70 ml of water; 20 or 30 mls of 37% formatin are added; after 30 mins 0À1 mole of epichlorhydrin or 1,3-dichloro-2-hydroxypropane (Example 5) is added and the mixture refluxed for one hour. Zinc plating baths are made up containing, per litre, 2 or 3À75 mls of a product of the above Examples, 7À5 g of Zn as sodium zincate, 7À5 g of NaOH, and in one case only 7À5 g of NaCN and 4 mls of 2% veratraldehyde-bisulphite adduct.
Patent GB-1063794-A (GB)
Title: Fungicidal compositions
Inventor: BOOGAART KRIGN VAN DEN
IPC: C07C333/32
Filed: 1963-12-31
Abstract: Fungicidal compositions effective against mildew contain as an active ingredient one or more thiuram monosulphides having the formula: <FORM:1063794/A5-A6/1> in which <FORM:1063794/A5-A6/2> is never identical with <FORM:1063794/A5-A6/3> R5 represents an alkyl or alkenyl group having 1 to 4 C atoms, R6 represents an alkyl or alkenyl group having 2 to 4 C atoms but 3 or 4 C atoms if R5 represents the methyl group, R7 represents an alkyl or alkenyl group having 2 to 4 C atoms or a phenyl group and R6 and R7 together may also represent a methylene chain having 4 or 5 C atoms, the chain with the nitrogen atom constituting a heterocyclic ring, in admixture with a solid carrier or with a liquid carrier together with an emulsifying, dispersing or wetting agent.  Many examples of compounds having the above formula and methods for their preparation are given. The compositions are preferably in the form of a spraying powder.
Patent GB-1448745-A (GB)
Title: Polyamic acid urethane and polyimidazo pyrolone and process for producing the same
IPC: C08G73/00
Filed: 1973-11-06
Abstract: 1448745 Polyimidazopyridones and their polyamide-acid-methane precursors HITACHI Ltd 6 Nov 1973 [8 Nov 1972] 51445/73 Heading C3R Polyamide-acid (or ester) urethanes are prepared by reacting (a) an aromatic diamino, mono- or di-(hydrocarbyloxycarbonylamino) compound having 2 amino groups and 1 or 2 hydrocarbyloxycarbonylamino groups ortho to an or each amino group with (b) a tetracarboxylic acid dianhydride or functionally equivalent derivative. They may be cyclized to polyimidazopyrrolones without the risk of gelling which arises when reacting a tri- or tetra-amine directly with the tetracarboxy compound. The reaction schemes from reaction of (a) or (b) to the cyclized polymer are for the mono-compound and for the di-compound The invention also includes copolymers obtained by including (c) a diamine as a comonomer in which case the molar ratio (a) : (c) may be from 95: 5 to 5 : 95. Numerous reactants, solvents and orders of combining the solvents and reactants are specified.  Uses.-The polyimidazopyrrolene is useful for insulating materials, laminates, adhesives, paints, films and insulating films for semiconductors, formed from solutions of the intermediate and cyclized by heat after removal of solvent.
Patent GB-1111087-A (GB)
Title: A process for the production of copolymers containing vinylidene chloride
IPC: C08F14/08
Filed: 1965-12-07
Abstract: Vinylidene chloride copolymers are produced by suspension polymerization of the monomers using 0.2% or less of an alkyl peroxydicarbonate halide catalyst, the polymerization rate being maintained substantially constant by raising the temperature continuously or stepwise.  Specified comonomers are vinyl chloride, acrylonitrile, vinyl acetate, methyl(meth)acrylate, maleic acid and itaconic acid.  The catalyst is e.g. one of the alkyl peroxydicarbonate halides described in Specification 1,040,826.  In the example, a vinylidene chloride-vinyl chloride copolymer is produced by suspension polymerization in an aqueous medium containing methoxycellulose, the catalyst being 4-chlorobutyl peroxydicarbonate.
Patent GB-1363550-A (GB)
Title: Electro-acoustic transducer device
IPC: H04R1/10
Filed: 1972-11-10
Abstract: 1363550 Electro-acoustic transducers INTERNATIONAL BUSINESS MACHINES CORP 10 Nov 1972 [20 Dec 1971] 51961/72 Heading H4J An earphone, microphone or other electroacoustic transducer has an outer cover provided with one or more resonant cavities which act as Helmholtz resonators and provide a steep highfrequency cut-off. The transducer (Fig. 2A) has a wall 35 with one or more apertures 37 for sound wave transmission and an outer cover 31 having one or more holes 45 for sound wave transmission between the housing 29 and the exterior of cover 31. Cover 31 provides at least one resonant cavity 49 communicating with the hole or holes 45 through a narrow channel or channels 47 opening into the aperture or apertures 37. An electrical equivalent circuit diagram is given (Fig. 2B, not shown). Cavity 49 acts as a shunt for a given frequency. A practical embodiment for an earphone capsule (or microphone) comprises a plastics cover 53 of circular form screwed over a transducer housing 51. Sound reaches the ear through cavity 61 (corresponding to cavity 43, Fig. 2A) and holes 63 in cover 53. Cover 53 is formed with two concentric annular lands 59, 69 providing an annular groove which, in combination with a wall 55 of housing 51, forms an annular resonant cavity 67. Land 69 abuts wall 55, which has an annular aperture 57. The arrangement constitutes a low pass filter for use in a P.C.M. system, preferably with an upper frequency limit between the desired voice frequency limit (usually 3400 Hz) and half the sampling frequency (e.g. 4000 Hz).
Patent GB-1280546-A (GB)
Title: Production of iron oxide from non-ferrous metal bearing cinder having high magnetite content
IPC: C22B1/08
Filed: 1969-10-24
Abstract: 1280546 Purifying iron oxide ores DUISBURGER KUPFERHUETTE and BADISCHE ANILIN- & SODA-FABRIK AG 24 Oct 1969 [25 Oct 1968] 52134/69 Heading C1A In a process for the production of purified iron oxide and recovery of non-ferrous metal values from a non-ferrous metal bearing, high magnetite cinder resulting from the roasting of sulphidic iron ore by the steps of chlorinating roasting the cinder and leaching the resulting roasted calcine, the cinder obtained by roasting the sulphidic iron ore is subjected to oxidation prior to the chlorinating roasting step to reduce the magnetite content of the cinder. The magnetite content should be reduced to less than 25%, preferably to from 5 to 10% and the sulphur content should be reduced to 3% or less, preferably to from 1 to 2À5%.
Patent GB-1072308-A (GB)
Title: Sour cream powder
Inventor: NOZNICK PETER PAUL
IPC: A23C13/12
Filed: 1965-12-10
Abstract: A sour cream type powder is prepared by cooling cream, whole milk or skim milk to a temperature between its freezing point and 40 DEG F., acidifying it with a nontoxic acid and spray drying the cooled acidified product to form a powder.  Cream or whole milk is pasteurized and homogenized, and skim milk is condensed, before treatment.  Suitable acids are lactic, citric, tartaric, monochloracetic, hydrochloric, hydriodic, hydrobromic, and phosphoric acids.  The acid may be replaced or supplemented by acid-producing bacterial starters.
Patent GB-1175259-A (GB)
Title: Coaxial Cable Linear Delay Line.
Inventor: HOLLAND JOHN W
IPC: H01P9/02
Filed: 1967-11-20
Abstract: 1,175,259. Delay lines. BUNKER-RAMO CORP. 20 Nov., 1967 [21 Nov., 1966], No. 52720/67. Heading H1W. A delay line is made by coiling an insulated wire and plating a continuous metal coating about the insulated wire and within the interstices of the coil. The surface of the insulation is first etched and sensitized, e.g. by immersion in stanuous chloride. It is then activated with e.g. gold chloride and coated with e.g. silver, copper or gold by an electroless method. The treated wire is formed into a coil, e.g. a multilayer coil of circular or square section, and the coil is electroplated to deposit an appreciable thickness of metal over the exterior of the coil and between the interstices of the turns. In a modification of this process, the coil is wound after the etching step and metal strips 18 are interwoven with the coil in such a manner as to separate the turns and prevent insulationto-insulation contact. The steps of sensitization, activation, electroless and electro-plating are then carried out on the coil. The coating replaces the strapping, jacketting, or potting normally used to retain the shape of the coil and to reduce its inductance.
Patent GB-1521389-A (GB)
Title: Photopolymerizable urea or thiourea resins
IPC: G03F7/038
Filed: 1976-12-17
Abstract: 1521389 Laminates TOKYO OHKA KOGYO KK 17 Dec 1976 [22 Dec 1975] 52805/76 Heading B5N [Also in-Division C3] A soluble photocurable resin for making films for printing plates is a polycondensate of an optionally alkylated alkylolurea or alkylolthiourea with an N-alkylol(meth)acrylamide or a reaction product of a polycondensate of urea or thiourea and formaldehyde with an N-alkylol(meth)acrylamide. 1-200 p.b.w. of the product may be blended with 100 p.b.w. of a conventional film-forming soluble resin which is a polyvinyl alcohol or ether, a hydroxyalkylcellulose, an alkyd resin, a polyethylene oxide, a polyvinylpyrrolidone, a polyacrylic acid, or its Na salt, a maleic acid copolymer or a nylon, 0À01-10 p.b.w. of a photosensitizer and 0À01- 5 p.b.w. of a polymerization inhibitor, and the compositions cast from, e.g. alcohol solution to give a photosensitive film. In Examples 1-4 dimethoxymethyl-, dibutoxymethyl-, or dibutylol-urea is condensed with methylolacrylamide in 2 :1, 1 : 1, 1 : 2, 1 : 4 molar ratio i.p.o. NH 4 Cl, ammonium oxalate or oxalic acid. In Example 5 a polycondensate of urea, thiourea and formaldehyde in 1 : 1 : 4 molar ratio is condensed with methylolacrylamide i.p.o. ammonium propionate. In Examples 6-12 these products are blended with about equal weights of polyvinyl alcohol, polyacrylamide (in 20% aqueous solution), or hydroxypropylcellulose. In Examples 13-17 dimethoxymethylurea or condensed dimethylolurea is condensed with methylolacrylamide; the products (40 p.b.w.) are dissolved in methanol (100 p.b.w.) with soluble nylons (100 p.b.w.) and benzophenone (2 p.b.w.) and optionally methylene his-acrylamide. The compositions are applied to chromium-plated steel and dried; the films are removed, glued to aluminium panels and exposed to an image and developed with water.
Patent GB-1439876-A (GB)
Title: Apparatus for mixing or separating fluids
IPC: B01D63/08
Filed: 1973-11-14
Abstract: 1439876 Semipermeable membrane apparatus, degassing liquids RHONE-POULENC SA 14 Nov 1973 [14 Nov 1972] 52826/73 Headings B1M and B1X Apparatus for introducing at least one additional constituent into or for extracting at least one constituent from a fluid mixture comprises 'between two mechanically connected rigid plates, a stack of frames having semi-permeable membranes fitted there between in such a way as to form a succession of compartments separated by the said membranes, that is to say alternately even compartments for the flow of the treated fluid and odd compartments for the removal of the extracted constituent, or introduction of the additional constituent, as the case may be, the said membranes having a periphery which is clamped in a leakproof manner between the adjacent frames of the stack, each frame having around a central aperture, orifices which, when the said frames are superposed, form ducts for supplying and removing the fluid mixture and for introducing or removing the said constituent, each frame having, inside the central aperture, a packing element suitable for ensuring turbulence of the fluid mixture in the even compartments and the flow of the said constituent and of a thickness to act as a mechanical support for the semi-permeable membranes in the odd compartments, at least one frame defining an even compartment consisting of at least two superposed elements, the orifices for the supply and removal of the fluid mixture each communicating with the central aperture via at least one channel consisting of a first slot formed through the entire thickness of a first element and extending from the central aperture and of a second slot formed through the entire thickness of a second element and extending from the said orifice, the two slots communicating with one another when the said elements are superposed. As shown, an "even" frame 10 has a central aperture 13 containing a packing element 18 and covered by a membrane 12. The frame is composed of two elements, the upper having slots 24 and the lower having slots 25 which overlap so as to provide communication between duct 44 and aperture 13. The apparatus is suitable for degassing liquids, especially foaming liquids, wherein the membranes may or may not have been made water-repellant.
Patent GB-1448107-A (GB)
Title: Fluid flow control valve
IPC: F16K3/32
Filed: 1973-11-15
Abstract: 1448107 Valves GENERAL SIGNAL CORP 15 Nov 1973 [15 Dec 1972] 53117/73 Heading F2V A spool valve comprising a spool 5 slidable in a bore 3 is provided with grooves extending in a circumferential direction adjacent the edge of either a land on the spool (as at A) or a land in the box (for instance at B). Such provision is said to facilitate control of the spool at opening and shut-off points. In a second embodiment the grooves are formed by a screw thread on a conical surface.
Patent GB-1314048-A (GB)
Title: Process for finishing textiles with preparations of reaction products
IPC: C08G63/52
Filed: 1970-11-09
Abstract: 1314048 Anti-felting finishes CIBA-GEIGY AG 9 Nov 1970 [10 Nov 1969] 53234/70 Heading D1P [Also in Division C3] Textiles are finished by reaction at 35-100‹C with a product obtained by reacting: (A) a reaction product of (I) at least one polyepoxide containing at least 2 epoxy groups per molecule and (II) at least one polymeric fatty acid, the equivalent ratio of epoxide groups to acid groups being 0.45:1 to 0.95:1, and (B) an amine containing at least one amino group and exclusively basic N atoms or ammonia, and (C) optionally an aliphatic or aromatic diisocyanate. The equivalent ratio of acid groups to amino or ammonia is 1:1 to 1:10 and acid groups to isocyanate, when present, 1:0.1 to 1:1.5. Not later than on completion of the reaction the product has, with addition of base if necessary, a pH of 7.5-12 after dilution with water. (A), (B) and (C) may be reacted in any order. I may be a diglycidyl ether of bisphenol A having an epoxide content of at least 5 equivalents per Kg. II may be a dimerised to trimerised linoleic or linolenic acid. Suitable amines are H 2 N(CH 2 CH 2 NH) n  CH 2 CH 2 NH 2 , 3, 5, 5-trimethyl-1-amino-3-aminomethylcyclohexane or 1-amino-2-aminomethylcyclopentane. Reaction may take place in a solvent which is miscible with water to an unlimited extent. Examples relate to processes in which wool is rendered non-felting; these may be combined with a dyeing process.
Patent GB-1458152-A (GB)
Title: False twister
IPC: D02G1/08
Filed: 1974-12-10
Abstract: 1458152 Fake twisting: threading up KUGELFISCHER GEORG SHAFER & CO 10 Dec 1974 [11 Dec 1973] 53255/74 Heading D1D A false twister comprises three rotatable, parallel spindles carrying friction twisting elements, and means provided for moving a thread from a diverted position clear of the elements and a false-twisting position in which the thread follows a zig-zag path between the elements, provision being made for moving the thread to a stable intermediate position for starting up, in which position the thread engages at least one friction element on at least one spindle. The twister may comprise, Fig. 1, three spindles 2 having friction discs 9, and rotatable sleeve 13 carrying aligned cams 16 each having, Fig. 2, an oval shape and a lug 17. The two middle cams lie in the planes of the two discs on the furthest spindle. To thread up, thread 20 is passed through fixed eye 7, over lugs 17, and through tube 8. To start spinning, sleeve 13 is rotated, Fig. 3, until the thread is located in the nip between disc sets 10, 11 and engaging the discs 9. In this intermediate position, the thread has imparted to it only 25 to 50 per cent of its final rotation. Further rotation, Fig. 4 causes the cams to urge the thread inwardly to a position from which it will move of its own accord to its central, zig-zag path through the discs. Alternatively, Fig. 5, the thread may be held by levers 24 pivotable albout a spindle, may be taken to intermediate position 20' by fork 25, and may be moved inwards by levers 24, Figs. 6 and 7 show alternative lever systems.
Patent GB-1171169-A (GB)
Title: Apparatus for Submerged Combustion Heating
IPC: F23J1/00
Filed: 1966-11-29
Abstract: 1,171,169. Submerged combustion apparatus; burners; tubular heat exchangers. ATELIERS J. HANREZ SOC. ANON. 29 Nov., 1966 [2 Dec., 1965], No. 53301/66. Headings F4K, F4S and F4T. Submerged combustion heating apparatus comprises a burner unit 1, combustion chamber 2 and a heat exchanger 4 through which a fluid to be heated is passed and heated by a mixture of combustion gases and heat transfer liquid normally water. As shown, a horizontal annular burner unit 1 and combustion chamber 2 are arranged below the heat exchanger 4 which comprises a nest of tubes 27. The apparatus is housed in a container 3 which is partly filled with water, the level of which is controlled by a device 11. The combustion gases from the chamber 2 are injected into the water through openings 26, so forming a turbulent mixture which heat exchanges with the fluid to be heated flowing through the tubes 27. Above said tubes the mixture contacts a deflector 33 and becomes separated, the water is channelled back between the container walls and guide plates (32, Fig. 2), and the cooled combustion gases exit through an exhaust 5 which has separation means 6 for removal of water droplets. In an alternative arrangement (Fig. 4) the heat exchanger is arranged downstream and coaxial to the combustion chamber. The water recycled from separating means (51, 52) via a pipe (48) and pump (49 is introduced into the combustion chamber (2<SP>1</SP>) at circumferentially disposed nozzles (47) for mixing with the combustion gases. The burner unit 1 comprises annular conduits 12, 13 arranged concentrically around a horizontal tube 15 housing a pilot flame. The annular conduit 12 is fed with liquid fuel and the conduit 13 with gaseous fuel. A large number of annular conduits may be provided (see Fig. 4), alternate conduits being fed respectively with liquid and gaseous fuel. The tube 15 has an ignition device 22 disposed within a liquid free compartment 23. A photo-electric cell 24 together with known electrical circuits control the operation of the burner unit 1.
Patent GB-1455426-A (GB)
Title: Method and apparatus for sensing flatness of a sheet
IPC: G01B13/22
Filed: 1973-11-16
Abstract: 1455426 Measuring flatness of sheet SUMITOMO LIGHT METAL INDUSTRIES Ltd 16 Nov 1973 [17 Nov 1972 27 Oct 1973] 53320/73 Headings G1N and G1M The flatness of a strip or sheet S, Fig. 1 is determined by measuring the back pressures from a series of nozzles N located across the strip, while the strip is subjected to a predetermined constant tension. Each nozzle comprises a body 1 with a central bore, allowing a fluid-pressure p supplied at inlet 8 to reach the head 2 and impinge on the sheet S. The body 1 is slidably mounted in a fixed housing 1' supplied at inlet 7 with a fluid-pressure q, and the body 1 moves in housing 1' to the position where the back pressure is equal to the fluidpressure q. This position is measured by a differential transformer for each nozzle and compared across the width of the strip to determine the degree of flatness.