baber/WOPTO huggingface dataset:
Patent GB-1252908-A (GB)
IPC: G03D9/00
Filed: 1968-06-25
Abstract: 1,252,908. Treating textiles. CIBA (A.R.L.) Ltd. 6 June, 1969 [25 June, 1968; 20 Dec., 1968], Nos. 30226/68 and 60779/68. Heading D1P. In a process for treating textiles a resin forming composition containing:- i) an aqueous, non resinous solution of ureaformaldehyde condensation products prepared as described below, having a molar ratio of urea: formaldehyde of between 1:4 and 1:10, and a total concentration of constituents of between 40 to 90% by weight. ii) urea in a quantity to bring the molar ratio of urea: formaldehyde in the final composition within the range 1:1.3 to 1:2. iii) water in a quantity to bring the total concentration of the above constituents within the range 10 to 85% by weight. iv) an acid, latent acid or metal salt catalyst is applied to the textile material. The impregnated textile material is then dried and heated to cure the resin forming composition. The component (i) can be prepared by absorbing formaldehyde in an aqueous solution of urea or by dissolving urea in an aqueous solution of formaldehyde and concentrating by removing water. Although the order and manner in which the above components are mixed is not important it is preferred to dissolve the urea and catalyst in the water and add the resulting solution to component (i). Catalysts that may be employed include weak acids, latent acids, for example ammonium chloride, ammonium dihydrogen phosphate ammonium sulphate and ammonium thiocyanate which develop acidity in the mixture on heating, or metal salts for example zinc nitrate, zinc fluoroborate, zinc chloride and magnesium chloride. Particularly useful are mixtures of ammonium salts and buffer salts, for example sodium acetate, disodium hydrogen orthophosphate and sodium dihydrogen orthophosphate. Examples describe the application to yarns, threads, woven, non-woven and knitted fabrics made wholly or partly from natural or regenerated cellulose or synthetic polymers of polyamides.
Patent GB-1258877-A (GB)
IPC: A01N41/12
Filed: 1969-11-28
Abstract: 1,258,877. Algicides containing bis(trihalovinyl)-trisulfides. CHEVRON RESEARCH CO. 28 Nov., 1969 [29 Nov., 1968], No. 12004/71. Heading A5E. [Also in Division C2] An algicidal composition comprises a bis (trahalovinyl) trisulfide of formula wherein X is Cl or Br, and a water-dispersible or water - miscible diluent therefor. A typical compound used in bis-(trichlorovinyl) trisulfide.
Patent GB-1265874-A (GB)
IPC: D01F8/08
Filed: 1969-08-15
Abstract: 1,265,874. Polyacrylonitrile conjugate filaments. TOHO BESLON CO. Ltd. 15 Aug., 1969 [16 Aug., 1968], No. 40872/69. Heading B5B. In the wet spinning of acrylonitrile polymer conjugate filaments, a concentrated aqueous zinc chloride solution containing 0À005 to 0À2% by weight (calculated as zinc oxide) of a basic inorganic compound is used as the solvent and the solution is divided into two portions, one portion being extruded through a spinneret adapted to spin conjugate filaments without having been previously heated and the other portion having been heated to a temperature and for a time prior to extrusion through the spinneret such that the difference in T DMF  of homo filaments spun from the solutions separately is more than 5 C. T DMF  is defined as the temperature of maximum contraction of the fibre, measured when heated in aqueous dimethyl formamide solution under specified conditions. The polymers used consist mainly of acrylonitrile and include copolymers of acrylonitrile with methyl acrylate, methyl methacrylate, vinyl acetate, acrylamide, methacrylamide, allylsulphonic acid, methallylsulphonic acid and salts thereof. The acrylonitrile polymer solution may be prepared by continuous solution polymerization comprising the steps of filling a polymerization apparatus with a reaction mixture and applying a pressure of 1-5 kg/cm.<SP>2</SP> gauge to the reaction system, and the heat-treated polymer solution is prepared by continuously heating a portion of the solution thus produced while applying a pressure of 1-10 kg/cm.<SP>2</SP> gauge to the polymer solution in at least one heating vessel to prevent foaming and gel formation. The heat treatment may be effected at 80-130 C. The polymer may be dissolved in an aqueous solution of zinc chloride containing 55-65% by weight of the salt. The solution may also contain sodium chloride. The basic compound present in the spinning solution may be zinc oxide, zinc carbonate, sodium hydroxide or sodium carbonate. The two types of polymer solution are preferably extruded at 10-30 C. into an aqueous coagulating bath containing 10 to 40% of the same salts as are present in the spinning solution. The geltow of conjugate filaments thereby obtained is washed with water, stretched at an elevated temperature (e.g. in steam) while wet or dry, and relaxed in hot air, saturated steam or superheated steam, e.g. steam at 220 C. A second stretching step may be effected. The conjugate filaments obtained may be immersed in boiling water for 10 minutes whereby they acquire a spiral crimp.
Patent GB-1288480-A (GB)
IPC: C01B32/942
Filed: 1970-07-09
Abstract: 1288480 Calcium carbide KNAPSACK AG 9 July 1970 [12 July 1969] 33389/70 Heading C1A Calcium carbide of low gas yield is manufactured by-introduction of calcium oxide, having a particle size between 1 and 8 mm., into a melt of calcium carbide of higher gas yield. The calcium carbide of higher gas yield is defined as giving off between 280 and 300 litres acetylene per kg. carbide. Calcium oxide may be added at a rate consistent with the reduction of the acetylene yield contemplated for the feed carbide. Calcium oxide may be used in admixture with fluorspar or aluminium oxide of similar particle size.
Patent GB-1288563-A (GB)
IPC: D06M11/155
Filed: 1969-01-20
Abstract: 1288563 Polyacrylonitrile fibres COURTAULDS Ltd 19 Jan 1970 [20 Jan 1969] 3067/69 Heading B5B A wet-spun, gel-state carboxylate acrylic fibre (as defined below) is impregnated with a solution of a salt having a cation of a metal from Group II of the Periodic Table and an anion derived from an acid having a dissociation constant of at least 1 x 10<SP>-1</SP> the fibre being then dried. The carboxylate acrylic fibre is defined as containing at least 85% of acrylonitrile, and at least 0À5% of an ethylenically unsaturated carboxylic acid, e.g. acrylic acid, an α-alkyl acrylic acid (methacrylic acid for example) or an α-substituted alkyl acrylic acid, itaconic acid, for instance. One or more ethylenically unsaturated monomers, e.g. styrene, vinyl acetate or an ester of acrylic or methacrylic acid may be included. The preferred salts are those of Ca, Mg, Ba, Sr and Zn, and the preferred anions derived from strong acids, e.g. p-toluene sulphonic, benzene sulphonic acid, sulphuric, nitric or hydrochloric acids. The amount of cation retained by the fibre is preferably one half to twice that stoichiometrically required to form chelates with the available carboxylate groups, although higher proportions are acceptable. The preferred manner of dyeing the fibres, should this be necessary, is to add the dye to the gel-state fibre before addition of the salt. In an example, 20 gms. of a never-dried wetspun carboxylate acrylic fibre containing 2% of acrylic acid on the dry-fibre weight are immersed for 30 seconds in a 2% ZnSO 4  solution at 20 C. The fibres are then washed in demineralized water and dried in air at 80 C. They are then 0À5 gm. heavier than untreated fibres. Other exemplified treatments are with 0À6% MgSO 4 , 1À0% Ca(CH 3 COO) 2  and 0À5% of a soft finish plus 1% CaCl 2 . It is stated that this treatment improves the resistance of the fibres to discoloration by heat.
Patent GB-1290318-A (GB)
IPC: H01L23/29
Filed: 1970-07-08
Abstract: 1290318 Semi-conductor devices SIEMENS AG 8 July 1970 [9 July 1969] 33089/70 Heading HIK A PNP germanium planar transistor comprises diffused base and emitter regions, the donor diffused region being formed from a donor doped SiO 2  layer masked by a pure SiO 2  layer on the wafer surface, the doped SiO 2  layer itself acting as a mask for an acceptor diffusion. In a method of manufacturing the device, the pure SiO 2  layer 2 is thermally deposited on a wafer 1 and etched to form a window. A donor doped SiO 2  layer 4 is deposited over layer 2 and the window, and diffusion carried out to form a preliminary base zone. A second window 8 is formed in the layer 4 and an acceptor impurity diffused through the window 8 to form an emitter region. During emitter diffusion the layer 4 acts as a mask to the acceptor impurity, and further donor diffusion also takes place to form the final base zone 6. Contacts to the emitter zone may be of gold/gallium or silver/ gallium, and to the base zone of gold/antimony and/or silver/antimony. Initial contacts may be covered with a chromium and silver layer, or a chromium and a silver layer only may be used. Dopants may be of gallium and phosphorus with the wafer containing an indium impurity.
Patent GB-1290852-A (GB)
IPC: G11B15/14
Filed: 1968-12-11
Abstract: 1290852 Pulse radar EMI Ltd 11 Dec 1968 [11 Dec 1968] 58862/68 Heading H4D [Also in Divisions G4-G6] In a system for recording and playing back radar signals, the magnetic tape recorder 14 employs a two head helical scan video channel with separate longitudinally recorded auxiliary tracks. The recorder operates asynchronously to allow the use of varying pulse repetition rates and switching between heads (7, 8) is controlled by their outputs (see Divisions G4- G6). Scan pulses at ST together with radar video RV and trigger identity signals TI are fed to a combining unit 15 connected to, the video channel. The bearing of the radar scanner is fed to frequency modulators 16, 17 and may be amplitude modulated at 18, 19 the former to give a digital scanner bearing angle and the latter a north marker pulse. An oscillator 20 and divider 21 provide 50 Hz signal for controlling the head drum.
Patent GB-1295568-A (GB)
IPC: E05D15/52
Filed: 1971-04-19
Abstract: 1295568 Alternative movement windows and doors; hinges K SCHINDLAUER 19 April 1971 [3 April 1970] 25893/71 Headings E1J and E2F In an alternative movement door or window, e.g. swingable about an axis on either vertical side or on the top or bottom of the frame, the wing and main frames 14, 10 are made of plastics and have integral hinge parts 11, 13 on at least two sides of the frames, each part 11 having a bore 12 therethrough which accommodates hinge pin 1 guided in a sleeve 2 inserted in the bore 12 and the pin housing a screw nut 4 which is engaged by a threaded spindle 6 driven by an electro-motor 5 or alternatively the screw may be fixed in the sleeve and the nut driven by the electromotor, so that the pin 1 may be advanced into the bore 15 of the part 13 and retracted therefrom, whereby, the pins so operated and advanced on one side of the window only from the swing axis for the wing, but if so operated on at least two sides of the window the pins function as locks. Channels 17 are provided for accommodating the power cables &c so the motor 5 and a slit 16 receives the key-like projection 9 to secure the sleeve and hinge against rotation. Electrical switches 19 in the outer casing enable the effective hinge side to be selected.
Patent GB-1295634-A (GB)
IPC: C09D11/02
Filed: 1968-11-26
Abstract: 1295634 Printing ink composition YORKSHIRE CHEMICALS Ltd 26 Nov 1969 [26 Nov 1968] 55920/68 Heading C3R [Also in Division D1] Printing inks consist of or contain a sublimable dye in a non-aqueous medium which is based on any one of modified phenolic resin, polyurethane oil containing a drier, polyacrylate, or cyclized rubber. In the examples, a modified phenolic resin is used together with bleached linseed oil, mineral oil, linseed oil modified alkyd and cobalt naphthenate, and disperse dyes are employed.
Patent GB-1296043-A (GB)
IPC: H02M7/06
Filed: 1969-12-02
Abstract: 1296043 Inverting MITSUBISHI DENKI KK 2 Dec 1969 [2 Dec 1968 14 Dec 1968 26 Dec 1968 3 Feb 1969 (2) 19 Feb 1969 21 July 1969] 58882/69 Heading H2F [Also in Division H1] An inverter comprises at least two thyristors 2a, 2b connected in series with a winding 1a2, 1b1 of a saturable reactor between the D.C. terminals PN and the output terminal O so as to reduce the charge and discharge times of the commutating capacitors 3a, 3b through reactors 7a, 7b. Thyristors 2a, 2b are triggered alternately by means not shown, so as to connect alternate sides of the D.C. power supply Ed to the output terminal O via the two windings of the saturable transformers 1a, 1b. Each time a thyristor is turned on, the appropriate commutating capacitor becomes discharged at a frequency determined by inductor 7a, 7b into the previously conductive thyristor. In their non-saturated state, the windings of transformers 1a, 1b minimize the current in the commutating capacitors 3a, 3b, but when saturated provide negligible impedance in the load circuit. In Fig. 21 (not shown), a damping diode and resistor are connected between the cathode of thyristor 2a and the anode of 2b. Figs. 2, 5, 7, 22 (not shown), utilize the thyristors to switch one side of a D.C. power supply alternately to opposite ends of the primary of a double-wound transformer. In Fig. 13, a non-saturated commutating transformer 8 is employed together with saturable inductors la, 1b. The saturable inductors and commutating transformer may be wound on the same core (Figs. 24-28, see Division H1). Figs. 5, 6, 10, 11 relate to bridge arrangements for four thyristors. High frequency pulse width modulation may be employed. The load may be connected between terminal O and one of the supply terminals in a D.C.-D.C. converter.
Patent GB-1301298-A (GB)
IPC: C22B19/08
Filed: 1969-12-03
Abstract: 1301298 Blast furnace distillation of zinc IMPERIAL SMELTING CORP (NSC) Ltd 18 Nov 1970 [3 Dec 1969] 59141/69 Heading C7D [Also in Division C5] In the extraction of Zn from a blast furnace charge of oxidic Zn and /or oxidic Zn/Pb materials with a carbonaceous fuel and reducing agent, the carbonaceous fuel, preferably coke, is first treated to reduce its reactivity to CO 2  at 1000C. The treatment comprises forming a physical barrier layer on the coke or briquetted carbonaceous fuel by treatment e.g. spraying either with a solution or suspension of an inorganic acid, base or salt e.g. boric acid, borax, CaO, Ca(OH) 2 , CaCO 3 , Na 2  SiO 3 , or with molten tar or pitch. Alternatively the inorganic barrier material may be incorporated in the briquette. The treated coke is then preheated to form the barrier layer. In the case of the inorganic material it may be sprayed onto the hot preformed carbonaceous briquettes. The preferred treatment involves spraying the coke with a 2.5% aqueous solution of boric acid.
Patent GB-1302254-A (GB)
IPC: D03D47/26
Filed: 1970-05-16
Abstract: 1302254 Beating-up devices VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT TEXTILNOGO I LEGKOGO MASHINOSTROENIA 16 May 1970 23844/70 Heading D1E A beating-up device for a travelling wave loom comprises toothed discs 2 mounted for rotation with a drive shaft 1, the height of the teeth 3, 4, 5 increasing in a direction opposite to that in which rotation take place, and the discs being angularly offset on the shaft relative to each other, Fig. 2, not shown, so that the teeth form a helical surface, fixed warp separating plates 6, 7 mounted clear of the discs and further fixed plates 8 extending between the discs and the plates 6 and 7. Three teeth 3, 4, 5 may be provided on each disc 2 so that the weft is progressively beaten up three times to the fell. One set of weft separating plates 6 may provide a race for the shuttles 14. The discs 2 are mounted movably axiallyof the shaft.
Patent GB-1308034-A (GB)
Title: Fortified phenolic resins
IPC: C08G8/28
Filed: 1970-04-14
Abstract: 1308034 Methoxy methyldiphenyl oxides DOW CHEMICAL CO 14 April 1970 17821/70 Heading C2C [Also in Divisions B2 and C3] In Example 1 a mixture of mono- and poly- (methoxymethyl) diphenyl ethers is prepared by treating a mixture of diphenyl ether and chloromethyl diphenyl ethers with excess methanol in the presence of sodium hydroxide. The product comprises unreacted diphenyl ether, 2- and 4-monomethoxymethyl diphenyl ether, 2,4- and 4,4<SP>1</SP> - dimethoxymethyl diphenyl ether, trimethoxymethyl diphenyl ether and tetramethoxymethyl diphenyl ether.
Patent GB-1308559-A (GB)
Title: Liquid seal for a gas pipe line
IPC: F16K13/10
Filed: 1970-07-31
Abstract: 1308559 Fluid-pressure servomotor systems AIRSCREW-WEYROC Ltd 28 July 1971 [31 July 1970] 37202/70 Heading G3P An inlet duct for gas in sealed from an outlet duct 3 by liquid 8 which is displaced to allow uninterrupted flow between the ducts when a flow of gas causes a pressure difference between tubes 4, 5 and operation of a valve 6. The latter operates a further valve 7 to connect a source of low-pressure 13 to a chamber 8 to reduce the liquid level in a chamber 9. In an alternative embodiment, the inlet and outlet ducts are continuous and form a U-passage the elbow of which is immersed in the sealing liquid and provided at its lowest point with a slot for the entry of the sealing: liquid. When low-pressure is applied to the liquid outside the ducts, liquid is withdrawn from the elbow through the slot to permit gas flow to the outlet duct. The signal from the means for detecting gas flow may be electrical.
Patent GB-1308612-A (GB)
Title: Emergency power supply controllers
IPC: H02J9/02
Filed: 1969-02-03
Abstract: 1308612 Standby battery charging systems MLP LIGHTING Ltd and D M LOGDEN 6 March 1970 [3 Feb 1969] 5697/69 Heading H2H An emergency power supply system for a load 1 (e.g. fluorescent lighting) comprises an ON-OFF switch 4 for controlling the mains supply LN to the load 1, the switch 4 being bypassed so that an amplifying switching device 9 ... 12 connects a standby supply 13 to the load 1 in the event of mains supply failure, irrespective of the position of switch 4. As described, the by-pass may be a resistor, capacitor 6 or neon tube 5. The by-pass current lights a further neon tube 7 which irradiates a light sensitive resistor 8 which maintains transistor 9 conductive so as to turn off transistor 10. Neon 7 is extinguished by supply failure so that transistor 9 is turned off, turning on transistor 10 and energizing relay 11, contacts 12 of which connect batteries 13 to the lighting load 1 irrespective of the position of switch 4. A battery charger 14 is included. A generator or dry batteries may be used as standby supply, separate from battery 13. Modification.-In Figs. 4-6 (not shown) the light sensitive resistor 8 is omitted and a diode included between the supply 13 and the base of transistor 9. In Figs. 7-9 (not shown) the relay 10, 12 is replaced by a further transistor.
Patent GB-1311003-A (GB)
Title: Cryogenic cooling apparatus
IPC: F25B9/02
Filed: 1970-02-18
Abstract: 1311003 Refrigerating HYMATIC ENG CO Ltd 19 April 1971 [18 Feb 1970] 7810/70 Heading F4H In a cryogenic cooling apparatus including a tubular heat exchanger comprising an inner tubular body 10 around which is helically wound a finned inlet tube 11 forming the inlet path of the heat exchanger, a stainless steel metal can 9 is located around the finned coil 11 such that the space between the inner body 10 and the can 9 provides the second or exhaust path. The can 9 is removably fitted within a Dewar flask, the space between the two being filled with a fluid or paste heat transfer material of high heat conductivity. The bottom end of the can 9 is filled with absorbent material 40 such as felt or cotton-wool to absorb liquid refrigerant, which is caused to impinge on it. The absorbent material is covered by a flat disc 50 of wire gauze, which is secured to the can and has in it a hole 51 through which a sensor 17 projects into contact with the absorbent material.
Patent GB-1311796-A (GB)
Title: Electric cable glands
IPC: H02G3/06
Filed: 1970-03-05
Abstract: 1311796 Cable glands HAWKE CABLE GLANDS Ltd 19 April 1971 [5 March 1970] 10593/70 Heading H2E An electrical cable gland comprises a tubular body 10 adapted for securement to a fitting, a cap 16 which screws on to the body, and a sleeve 24 which is bored conically at the end adjacent to the body to receive a tapered metal ring 38 so that on tightening of the gland the inner sheath 42 of a cable 20 is clamped between the sleeve and the ring. A second sleeve 34 with a conical bore is provided to clamp the cable armour 32 against the tapered outer surface of the first sleeve 24. The ring 38 may have an extension (54, Fig. 2, not shown) with a lip (56) to receive a plastics shrunk-on splitter shroud. The gland is sealed by a resilient washer 44, compressed between the cap 16 and a nut 48, and rubber O-rings 50, (58) may also be provided.
Patent GB-1317891-A (GB)
Title: Reinforced thermoplastics materials
IPC: B32B27/12
Filed: 1969-05-27
Abstract: 1317891 Coated sheet materials STOREY BROS & CO Ltd 19 May 1970 [27 May 1969] 26795/69 Heading B2E A vacuum formable sheet comprises a non- woven nylon fabric sandwiched between layers of plasticised polyvinyl chloride which have been cast and set in situ. In the example, a sheet is formed by coating an embossed releasecoated paper with a lacquer comprising polyvinyl chloride and an acrylic resin and passed through a heated oven to dry the coating prior to the application of a polyvinyl chloride paste to form a skin coating which is gelled by passage through a heated oven. A coating of an expandable polyvinyl chloride paste is then applied, covered with a butadiene-acrylonitrile polymer bonded, non-woven nylon fabric and the assembly passed into a heated gelling oven, the resultant product being coated with the expandable polyvinyl chloride paste which is gelled in a heated oven prior to stripping the product from the release paper.
Patent GB-1336262-A (GB)
Title: Shuttlecock
IPC: A63B67/18
Filed: 1971-12-29
Abstract: 1336262 Shuttlecocks P KING 29 Dec 1971 60417/71 Heading A6S A shuttlecock comprists a striking cap 11, a skirt 12, as shown of feathers, and an adjusting ring 13 within the skirt within which it is movable towards or away from the cap, thus adjusting the flare of the skirt. Sawteeth 18 around the ring 13 provide gaps 19, one for each feather. The ring 13 may be made of plastics, nylon, &c and the cap 11 of cork, rubber, &c.
Patent GB-1336559-A (GB)
Title: Metal oxide coatings
IPC: C23C14/00
Filed: 1970-05-20
Abstract: 1336559 Reactive sputtering: TRIPLEX SAFETY GLASS CO Ltd R D KING R HISCUTT and P MOLINEUX 13 May 1971 [20 May 1970] 24510/70 Heading C7F  A metal oxide coating having a specific resistivity close to the minimum of the curve produced by plotting specific resistivity against oxygen concentration is formed on a substrate of e.g. glass, porcelain, mica or silica by sputtering in an atmosphere containing 1 to 9% oxygen and an inert gas e.g. argon. The oxygen may be introduced as carbon monoxide or dioxide. The metal may be In-Sn, In-Ge, In-P or In-Te alloys. The substrate may be heated by an element 20, controlled by a thermocouple 26, to 200 to 350‹C. The sputtering voltage is 1 to 5 kV and the pressure 10 to 100 microns. The cathode 18 is surrounded by an electrostatic screen 24.
Patent GB-1339162-A (GB)
Title: Terminal cap for sparking plugs
IPC: H01R13/533
Filed: 1971-05-28
Abstract: 1339162 Sparking plug caps TENK PRODUCTS Ltd 25 May 1972 [28 May 1971] 17964/71 Heading H2E A spark plug terminal cap has an identifying disc or plate attached to it and comprises a plastics body generally L-shaped in section, one arm (2) of the L having on its external surface longitudinal grooves (7) to provide finger grips. The other arm (1) has ribs (4) and a bore 5 containing a tinned steel terminal (15) for connection to a spark plug, and the one arm (2) has a passage (6) containing a steel rod (16) for retaining the terminal (15), a carbon rod (18), a spring (17) and a brass screw (19) all retained by a brass washer (20) with a ridged edge. The screw (19) is adapted to receive a h.t. lead. The identifying disc (11) is pressed into a recess (12).