baber/WOPTO huggingface dataset:
Patent GB-1132230-A (GB)
Title: Photosensitive insulation based on unsaturated -Ð-xylylene polymers
IPC: C08G61/02
Filed: 1965-12-23
Abstract: 1,132,230. Dicarboxylic aromatic acids; α- chloro-di-p-xylylene. UNION CARBIDE CORP. 23 Dec., 1965 [24 Dec., 1964], No. 54527/65. Heading C2C. [Also in Divisions B2, C3 and G2] A mixture of terephthalic acid and p,p<SP>1</SP>-dicarboxydibenzyl may be obtained by exposing an unsaturated p-xylylene polymer to light having a wavelength below 500 millimicrons in the presence of at least a substantially stoichiometric proportion of oxygen, dissolving the exposed polymer in a basic solvent and precipitating the mixture of acids with hydrochloric acid. The reaction is believed to occur as follows: Alpha dichloro-di-p-xylylene may be prepared by subjecting an admixture of di-pxylylene in carbon tetrachloride and sulphuryl chloride to U.V. irradiation in the presence of benzoyl peroxide.
Patent GB-1166830-A (GB)
Title: Improvements in or relating to Spinnerets
IPC: D01D5/253
Filed: 1966-12-09
Abstract: 1,166,830. Making spinnerets. ALGEMENE KUNSTZIJDE UNIE N.V. 9 Dec., 1966 [10 Dec., 1965], No. 55206/66. Heading B3A. [Also in Divisions B5 and F2] Thin-walled tubes having a profiled crosssection are made by pressing radially inwardly on such a tube having a circular cross-section, at locations spaced apart around the circumference of the tube. The tube is pressed by a special tool having a number of jaws which can deform the tube wall to the desired shape. The tube material may be heated while deformation takes place.
Patent GB-1461078-A (GB)
Title: Tunstile mechanism
IPC: G07C9/02
Filed: 1973-11-29
Abstract: 1461078 Positive detents METERMAN Ltd 21 Feb 1975 [29 Nov 1973] 55309/73 Headings F2E and F2K [Also in Division E1] A turnstile 10 has a control mechanism including a shaft (14) bearing a hub 12 with arms 16. A cam 25, fixed to the shaft, with recesses 28 co-operates with the detent 29 which is operated by the single-acting pneumatic ram 32 to hold the shaft in predetermined angular positions. The air pressure in the ram cylinder is released by a spool valve operated by a mechanism 36; the cam 39 connected to the shaft by a lost-motion linkage 43, 44 controls a pilot valve 37 which returns the spool valve to the operative position. The cam 26 co-operates with the spring-loaded follower 49 to bias the shaft and ensure that the detent 24 always returns to one of the recesses 28 after operation.
Patent GB-1149070-A (GB)
Title: A method of and apparatus for converting nuclear energy into mechanical energy
Inventor: WIKDAHL NILS ANDERS LENNART
IPC: G21D5/06
Filed: 1966-12-09
Abstract: 1,149,070. Nuclear power plant. N. A. L. WIKDAHL. 9 Dec., 1966 [9 Dec., 1965], No. 55311/66. Heading G6C. [Also in Division F1] Apparatus for converting nuclear energy into mechanical energy comprises a reactor through channels in which steam or gas is caused to flow, at least a part of which channels is rotatably arranged, and a number of these rotatably arranged channels or parts of channels are made totally or partly of nuclear fuel. The stationary parts of the channels may also be made totally or partly of nuclear fuel. Such a reactor is shown in Fig. 3 and comprises a radial flow turbine of double-rotation type, the rotor 19 and the stator 20 both being rotatable and being supported respectively by shafts 21, 22 passing through the reactor housing 23. Both the rotor 19 and the stator 20 are provided with a number of vanes 28, 29 which mesh together in such a way that each constitutes guide vanes for the other. The vanes and possibly also other parts of the rotor and stator and of the housing 23 are made to a greater or smaller extent of nuclear fuel which may be provided with a shell of a material, e.g. titanium or beryllium. The steam or gas, e.g. D 2 O steam, is supplied through feed-channels in the shafts 21, 22, flows radially outwards through the channels formed by the vanes 28, 29 and is discharged through an outlet 30 in the housing 23. The rotor 19 on the shaft 21 is axially displaceable by means of a motor 31 and motion transmitting means 32 in such a way that the vanes 28, 29 can be brought, either totally or partially, out of mesh with each other to provide reactor control. The stator 20 may be axially displaceable in a similar manner. Besides the fuel contained in the turbine, the reactor may also include fuel elements arranged in the usual manner. The shafts 21, 22 are each mechanically coupled with a compressor and an electric generator. Fluid from the outlet 30 is fed via a heat exchanger to the two compressors before being returned to the feed-channels in the shafts 21, 22.
Patent GB-1291783-A (GB)
Title: Apparatus for biaxially stretching a tubular film
IPC: B29C55/28
Filed: 1970-11-24
Abstract: 1291783 Expanding tubular film POLYMER PROCESSING RESEARCH INSTITUTE Ltd 24 Nov 1970 [26 Nov 1969] 55796/70 Heading B5B In the expanding of a tubular film by internal gas pressure, the final size of the film is determined by a bag mandrel 12 inflated by internal gas pressure and supported on a central conduit, there being an outer membrane 11 partially surrounding the mandrel and the space between the membrane and mandrel being supplied with a cooling liquid which flows into contact with the film at the edges of the membrane. There is located, both on the outside of the membrane and between it and the mandrel, a cylindrical net 13, 14, respectively, each net being held under positive tension, e.g. by means of a spring-loaded collar 18 to which each net is attached, and the outer net 13 being of finer mesh than the inner net 14. Net 13 serves as a sealing member for the inflating medium and net 14 as a fluid flow control for the cooling liquid. Further nets, e.g. the free-hanging net 15, may be provided. The various fluids enter via the central pipe which has at least four passageways which may be concentric. Inflation gas enters at 4; a heated fluid enters from a distributer 6 located at a level which determines the starting point of stretching; cooling liquid enters at 20; and gas for mandrel inflation enters at 22. The distributer may have perforated cylindrical walls 7 covered with cloth 8. The nets may be formed such that they shrink radially when the mandrel is deflated. The film may be of nylon, polyester, polypropylene, polystyrene, P.V.C. or P.V.D.C., and is cut at 23. The heated fluid supplied at 6 may be aqueous NH 4 NO 3 . Pipes 5 and 20 are thermally insulated from each other.
Patent GB-1424259-A (GB)
Title: Process for the simultaneous stretch texturing of filament yarn
IPC: D02G1/08
Filed: 1973-12-05
Abstract: 1424259 False twist texturing of yarns BAYER AG 5 Dec 1973 [5 Dec 1972] 56429/73 Heading D1F A process for simultaneously false-twist texturing and stretching a synthetic multifilament yarn comprises passing the yarn through at least two heating zones separated from each other in space between a delivery cylinder 4 and a draw-off roller 9, the yarn being delivered from the cylinder 4 to the first heating zone 5 where it is heated without mechanical stress and at low tension e.g. less than 0.5 p/dtex, to a temperature above the glass transition temperature, and thereafter, at a higher tension built up between the first and second heating zones 5, 6 it is stretched and simultaneously friction false-twisted and heat fixed between the cylinder 4 and roller 9 at a temperature greater than 160C. The first heating zone 5 may be formed by a heated roller a contact heater element, or a heated pin, in which cases, a stretching pin is arranged between the zones 5 and 6. In a further embodiment, the yarn makes several turns around a heated roller prior to passing to the heating zone 6. The yarn, which may be of undrawn or partially drawn polyester or polyamide, is passed to the first heating zone at a speed from 200 to 600 metres per minute. The yarn is stretched after passage through the first heating zone at a tension of 0.1 to 0.5 p/dtex, preferably 0.3 to 0.4 p/dtex. The stretching ratio is between 1:1.5 and 1:4.5. The textured yarn may be further heat treated before winding.
Patent GB-1454767-A (GB)
Title: Apparatus for preparing diluting and replicating laboratory samples
IPC: C40B60/14
Filed: 1973-12-06
Abstract: 1454767 Automatic analysis; sample preparation apparatus G D SEARLE & CO 6 Dec 1973 [7 Dec 1972] 56489/73 Heading G1B Apparatus for preparing samples for analysis comprises a dosing tip means 24, a dosing pump means 30 in gated communication with the dosing tip means and with a diluent source 32, and process controller means for supplying first, second, third and fourth signals, repetitively if necessary, the first signal providing aspiration of a specimen or a given dilution thereof from a specimen tube 17 into dosing tip means 24 by means of dosing pump means 30, the second signal providing dispensing of aliquots of the aspirated specimen or dilution thereof into a plurality of replication receptacles 16, the third signal providing aspiration of a quantity of diluent from source 32 into the dosing pump means 30 and the fourth signal providing dispensing of the remaining specimen or given dilution thereof by means of the dosing pump means through the dosing tip means 24 into a holding receptacle 17 to form a subsequent dilution. The specimen and holding receptacles 17 and the replication receptacles 16 may be carried in trays 15, 14 conveyable in separate paths past the dosing station (11) which is provided with instruction buttons (72) for programming the process controller means Fig. 1, (not shown). Each receptacle tray Fig. 5, (not shown) may carry on one of its short ends an apertured casing (77) for reception of an indentification card which may comprise a matrix of removable sections, the indentification system comprising an optical detection of light passing through the matrix where sections have been removed and through the apertures in the casing. The trays are moved by engagement of slots on their undersides with pins projecting from chains of a conveyer system Fig. 6, (not shown).  The dispensing tip means 24 in the embodiment shown is laterally movable along bar 278 and vertically movable through tip-wiping means 279 for insertion into specimen receptacles 17 and replication receptacles 16. Reagent from one or more of reservoirs 219 to 230 may be added to receptacles 16 using reagent dosing pumps 216i, 217i, 218i, each feeding one of each set of reagent dispensing tips 2161, 2171, 2181 etc. In another embodiment Fig. 2A, (not shown) Fig. 3, the dosing tip means 24 may be connected to the dosing pump by a flexible conduit 28 and arcuately movable about an axis at 67, tip 24 being extendable by means of chain drive 65 for engagement with a tip passage 62, 61, 60 for aspiration or dispensing of specimen. Tip 24 is wiped after each operation by a sponge 225, vacuum line 226 removing solvent from the sponges. Line 26 is kept free of liquid particles by interior fittings Fig. 4, (not shown) which exert a "scouring action". Each reagent is circulated between its reservoir (51, 52, 53) and a dispensing valve (37) which communicates with the dispensing tip by means of a peristaltic pump.
Patent GB-1184940-A (GB)
Title: Bleaching Natural or Synthetic Polyamide Fibres
IPC: D06L4/12
Filed: 1967-12-15
Abstract: 1,184,940. Bleaching polyamide fibres. BADISCHE ANILIN-& SODA-FABRIK A.G. 15 Dec., 1967 [16 Dec., 1966], No. 57041/67. Headings D1B and D1P. Natural or synthetic polyamide fibres are bleached by treating them with an aqueous liquor containing a peroxide which is performic acid or hydrogen peroxide which is in free form or in the form of an adduct, e.g. a perborate or percarbonate, a stabiliser and 0.01-0.2 moles per mole of peroxide groups of an aliphatic, aromatic or cycloaliphatic dicarboxylic acid having up to 10 carbon atoms or an anhydride or water-soluble salt of such an acid. The peroxide may be present in the liquor in an amount equivalent to more than 0.5 g per litre of active oxygen and the stabiliser which may be tetra sodium pyrophosphate, sodium tripolyphosphate, tetrapolyphosphate or hexapolyphosphate, magnesium silicate or phosphate or nitrilo triacetic acid or ethylene diaminotetraacetic acid or a magnesium or alkali metal salt thereof or mixture thereof, may be present in an amount of 20-200% of the amount of active oxygen. The dicarboxylic acid or anhydride or salt thereof may be succinic acid, tartaric acid, glutaric acid, 3-nitrophthalic acid, 4-nitrophthalic acid, 3-chlorophthalic acid, 4-chlorophthalic acid, 3, 4-dichlorophthalic acid, cyclohexane-1, 2-dicarboxylic acid, 4, 5-dichlorocyclohexane-1, 2-dicarboxylic acid, phthalic acid, maleic acid, phthalic anhydride, maleic anhydride fumaric acid or an alkali metal salt thereof. Bleaching may be effected at 50‹-100‹C. The liquor may also contain an optical brightener of the formula sodium hydroxymethane sulphonate, hexamethylenetetramine, octylphenol octaglycol ether, nonylphenol decaglycol ether, an adduct of castor oil to 10 moles of ethylene oxide and sodium polyacrylate. Flock, yarn, silver, woven, non-woven or knitted fabric made from wool, silk or polycondensates of caprolactam, of hexamethylene diamine and adipic acid or of omega-aminoundecanoic acid may be treated. Simultaneous bleaching and dyeing may be effected by incorporating dyes in the bleaching liquor.
Patent GB-1190660-A (GB)
Title: Soluble, Readily Polishable Hard Waxes and Process for their Manufacture
IPC: C07D301/28
Filed: 1967-12-18
Abstract: 1,190,660. Polyglycidyl ethers. FARBWERKE HOECHST A.G. 18 Dec., 1967 [16 Dec., 1966], No. 57295/67. Headings C3B and C3R. Hard, polishable waxes are prepared by copolymerizing (I) 100 parts by weight of a glycidyl ether of a C 16 -C 30  aliphatic alcohol, and (II) 2-20 parts by weight of a diglycidyl ether of a C 6 -C 15  dihydric phenol, in the presence of a polymerization catalyst (III). (III) may be cationic, e.g. SnCl 4 , SbCl 5  or BF 3  or anionic, e.g. an alkali metal hydroxide or alcoholate or an aluminium alcoholate, e.g. aluminium isopropylate; it may be present at 0À2 to 5% based on the total weight of glycidyl ethers. Polymerization may take place at 30-200 C. The diglycidyl ether may be derived from a mononuclear, polynuclear or a phenol with condensed nuclei. Examples are: hydroquinone, resorcinol, pyrocatechol, dihydroxydiphenyl, dihydroxy naphthalene, dihydroxydiphenylsulphone, dihydroxydiphenylsulphide, dihydroxydiphenyl - methane or - propane. Polymerization may be carried out in bulk or in the presence of an inert solvent.
Patent GB-1269107-A (GB)
Title: An instantly layable lawn
IPC: A01C1/04
Filed: 1969-11-25
Abstract: 1,269,107. Seed mats. GLANZSTOFF A.G. 25 Nov., 1969 [26 Nov., 1968], No. 57567/69. Heading D1R. An instant lawn comprises a support mat formed from a plurality of melt-spun nylon filaments in the form of loops which are bonded together at their cross-over points. The diameter of the filaments is from 0.1-0.8 mm. A cultivation medium is contained in the mat and grass or grass seeds are rooted in this medium. The mat preferably weighs 150-500 gms per sq metre and is from 0.5- 2.5 cm thick. The mat may be backed with a thin foil or film backing foil.
Patent GB-1194010-A (GB)
Title: Improvements in Article Storage and Handling Apparatus
IPC: B65G1/04
Filed: 1967-12-20
Abstract: 1,194,010. Storage systems; endless belt conveyers; platform elevators. SPERRY RAND CORP. 20 Dec., 1967 [23 Feb., 1967], No. 57797/67. Headings B8A, B8E and B8H. Storage apparatus comprises an operator work station 25, article carrying containers 21, storage means for the containers, and means for moving the containers between the station 25 and the storage means including a shuttle 42 of an extractor 23, the containers having flanges 40 which are engageable between rollers 68 on the shuttle. The extractor 23 is used to move the containers between their storage places on shelves 37 and conveyers 24, 28 which lead respectively to and from the station 25, and a second extractor may be provided for similarly moving containers to and from convyers 24, 31. The extractor position is controlled from a keyboard 34. The shuttle 42 is movable horizontally on a body 41 of the extractor 23, the body being movable vertically on a column 47 which can be driven horizontally along an aisle between the shelves 37. The shuttle is formed as an open-ended compartment having an endless belt conveyer 45 at its bottom and the rollers 68 at its top, the conveyer 45 and the rollers 68 being drivable so as to respectively engage the bottom and the flange of a selected container. The rollers may be minus a segment so that periodic release of the flange prevents vertical creeping of the container away from the belt. In a second embodiment, Figs. 7 to 11 (not shown), the conveyer 45 is omitted and interengaging belts extend round the rollers.
Patent GB-1398297-A (GB)
Title: Non-linear function generators
IPC: G06G7/28
Filed: 1972-12-15
Abstract: 1398297 Non-linear function generators FERRANTI Ltd 26 Nov 1973 [15 Dec 1972] 57956/72 Heading G4G A non-linear function generator comprises an input P, a potential divider R I , R L  between the input and a fixed voltage, e.g. earth, an output Q connected to a tapping point on the potential divider and a plurality of differential amplifiers A 1 , A 2 , A 3  each having a diode D 1 , D 2 , D 3  connected between its output and inverting input, the inverting inputs also being connected to the tapping point and the non-inverting amplifier inputs being connected to respective voltage sources V A , V B , V C  provided by potential dividers. The circuit shown provides a convex function whereas in Fig. 4 (not shown) a concave function is generated by reversing the polarities of the diodes.
Patent GB-1370924-A (GB)
Title: Magnetic disc hub assembly
IPC: G11B23/03
Filed: 1971-12-14
Abstract: 1370924 Mounting SPERRY RAND CORP 14 Dec 1971 [14 Dec 1970] 58046/71 Heading F2U  A plurality of magnetic discs 64, each with a central circular opening 66, are mounted on a cylindrical hub 16 (e.g. of cast A1 with a hard steel core) supported with its axis horizontal, and comprising two lands 50, 52 120 degrees apart circumferentially having outer surfaces 56, 58 at a radius from the hub axis, greater than any other part of the hub axis 62, and equal to the radius of the opening 66. The discs may be mounted on the hub when the lands are upward facing and equi-spaced from the vertical plane containing the axis 62. The hub may be held in this position by the insertion of a pin in a hole (104) in an integral end flange. The discs 64 interspaced with spacer rings (110), Fig. 2 (not shown), may be clamped between the integral flange and a removal flange bolted on to the hub.
Patent GB-1144110-A (GB)
Title: Improvements in and relating to the manufacture of porous materials
IPC: D04H1/435
Filed: 1967-12-29
Abstract: 1,144,110. Coated products. KALLE, A.G. 29 Dec., 1967 ,[30 Dec., 1966], No. 58996/67. Heading B2E. [Also in Division D1] An open pore material of fibrous or foam structure which is flexible, compressible and resilient is impregnated with a solution of, or with a solution for the production of, or with a dispersion of the polymer substance, which substance can, by treatment by means of a precipitating agent or by heat, be caused to undergo solidification over a period in a manner such that when, within this period, such an open-pore material impregnated therewith is subjected to compression followed by removal of the pressure, the polymer substance is caused to deposit within the pores of the material in the form of strings, threads or fibres spanning the pores, and the impregnated material is processed accordingly to produce such a deposit. The fibrous or foam structure may consist of cellulose, polyesters, polyamides or polyolefins and may be a loosely woven cotton fabric, fibre fleece of polyester fibres or a cross-linked ethylene-propylene elastic foam plastic. The polymer substance may be a polyester or poiyether urethane or butadieneacrylonitrile copolymer which may be dissolved in N-methylpyrrolidone or dimethylformamide or dispersed in water or an aqueous solution and the precipitating agent may be water. The compression may be applied by means of a vibration producer of a frequency of 10-500 oscillations per second, a web of loose fabric impregnated with a polymer solution for example, being passed over a metal bar performing 50 oscillations per second perpendicularly to the plane of the web, the amplitude being about 1mm, or by non-recurrent pressure.
Patent GB-1449689-A (GB)
Title: Process for removing coating from a cathode ray tube mask member
IPC: H01J9/227
Filed: 1973-12-21
Abstract: 1449689 Electro-phoretic deposition and removal of zinc oxide GTE SYLVANIA Inc 21 Dec 1973 [11 Jan 1973] 59506/73 Heading C7B [Also in Division H1] In a process for making a black matrix tube, the size of the holes in the shadow mask is reduced, before exposing the photo-resist, by electrophoretically coating the entire mask. After exposure, the coating is removed by electrolysis, whereby gas released substantially at the mask surface lifts the coating. A dark coating of iron oxides is formed on the apertured mask, which is then coated electro-phoretically using a suspension of solids, e.g. zinc oxide and/or titanium oxide, in a mixture of C 1 -C 2  alcohols and C 3 -C 5  alcohols with the addition of a small amount of aluminium nitrate. The coated mask is used to form a colourdot screen by the exposure to ultraviolet light of a photo-resist, and the coating is afterwards removed by electrolysis in a 3-6% solution of acetic acid in water, with agitation. The mask is preferably the anode. The other electrode is foraminous and spaced by 25-1À0 inches from the mask.
Patent GB-1466250-A (GB)
Title: Ceramics
IPC: C01B/
Filed: 1973-12-27
Abstract: 1466250 Ceramics; glazes TOPPAN PRINTING CO Ltd OJI PAPER CO and Y SHIRAKI 27 Dec 1973 [28 Dec 1972 (5) 3 Feb 1973] 59828/73 Headings C1J C1A and C1M [Also in Divisions C3 and D2] A green composite comprises, on a dry basis, from 50-98 wt. per cent of inorganic, refractory and sinterable particles having a negative zeta potential in water and from 50-2 wt. per cent of cationic cellulose pulp having a zeta potential of + 20 mV or higher in water. A ceramic, which may be in the form of a sheet may be produced by drying if necessary, firing in an oxidizing atmosphere to burn off the pulp and further firing to sinter the particles. The particles may be smaller than 200 mesh (Tyler). The cationic pulp may be formed by graft copolymerization of cationic monomer to cellulose pulp (see Division C3). The inorganic particles may be one or more materials selected from oxides, e.g. silica, alumina, zirconia, spinel, magnesia, and beryllia, silicate minerals, e.g. cordierite, forsterite and mullite, carbides, nitrides, magnetic material and dielectric material. Ceramics may be produced from 10 parts of cationic pulp, 25 parts silica powder, 25 parts feldspar powder, and 50 parts kaolin (Examples 1 to 5 and 7); 7 parts of cationic pulp, 56 parts of silica powder, 28 parts of alumina powder and 33 parts of magnesite (Example 6); 10 parts of cationic pulp and 90 parts of ceramic glaze comprising PbO, Al 2 O 3 , SiO 2  and KNaO (Example 8); 10 parts of cationic pulp, 90 parts of fritted glaze comprising lead oxide, boric acid, silica and alumina and a small amount of red iron oxide (Fe 2 O 3 ), (Example 9); 10 parts of cationic pulp, 39 parts of siliceous stone, 15 parts of feldspar, 9 parts of clay, 32 parts of kaolin and 3 parts of dolomite (Example 10); 10 parts cationic pulp, 100 parts of a glaze consisting of feldspar, lime, kaolin and quartz and a small amount of red iron oxide (Example 11); 3 parts of cationic pulp and 97 parts of beryllium oxide (Example 12). The glaze-containing materials produced in Examples 7 and 8 may be in sheet form, the sheet being applied to a metal or ceramic substrate and fired (e.g. at 1050‹ C.) to form a glazed article.