baber/WOPTO huggingface dataset:
Patent GB-1234252-A (GB)
IPC: C08G69/28
Filed: 1968-06-06
Abstract: 1,234,252. Polyamides. UPJOHN CO. 6 June, 1968 [19 June, 1967], No. 27073/68. Headings C3C and C3R. The reaction of polyisocyanates with polycarboxylic compounds in the presence of a dipolar aprotic solvent to form polyamides or polyimides is allowed to proceed to completion without the supply of external heat; 0À25 to 10 equivalents of isocyanate are used per equivalent of carboxy compound. Numerous reactants and solvents are mentioned. The products may be non-cellular, employing excess solvent and allowing CO 2  to escape or cellular. Cellular products may be obtained with or without a blowing agent additional to the CO 2  produced in the reaction; for these products compounds having at least 2 groups with active hydrogen may be included in the reaction mixture, e.g. 0À02 to 0À5 equivalent per isocyanate of a polyol, polyamine or hydroxyamine as well as conventional polymethane foam catalysts and additives such as dispersing agents, cell stabilizers, surfactants, flame retardants, dyes, pigments, soaps and metallic powders and other inert fillers. Numerous compounds are mentioned and several possible applications of the products are specified.
Patent GB-1238945-A (GB)
IPC: B32B27/00
Filed: 1968-09-19
Abstract: 1,238,945. Laminates. UNION CARBIDE CORP. 19 Sept., 1968 [20 Sept., 1967], No. 44520/68. Heading B5N. [Also in Divisions B1-B2 and C3] Laminates comprise a polymer salt composition comprising (a) a prepolymer reaction product of (1) a carboxyl containing polyolefin having 2 to 50 mole per cent carboxylic acid; and (2) an alkylaminoalkyl acrylate or methacrylate or an amino substituted styrene of formula wherein q is 0 or 1, R is a C 1  to C 6  alkylene radical and each of R 1  and R 2  is hydrogen or a C 1  to C 6  alkyl radical, said prepolymer reaction product being copolymerized with (b) an alkyl acrylate or methacrylate, acrylamide, methacrylamide, styrene, an alkyl substituted styrene, vinyl chloride, a C 3  to C 20  vinyl ester or a C 3  to C 30  vinyl alkyl ether, adhesively bonded to a substrate of metal, vinyl chloride resin, cellulosic or siliceous material, vinylidene chloride polymer, olefin polymer composition, polyurethane, polystyrene, rubber modified styrene polymer or magnetic metal oxide. Examples are given in which (i) a film of a polymer composition obtained by copolymerizing an ethylene-acrylic acid/dimethylaminoethyl methacrylate reaction product with methyl methacrylate is used for lamination of substrates of acrylonitrile-vinyl chloride copolymer, vinyl chloride-vinyl acetate copolymer, aluminium, polyvinyl chloride, vinylidene chloridevinyl chloride copolymer, hydroquinone/epichlorohydrin condensation polymer, polyethylene or galvanized iron; (ii) films of the polymer composition as in (i) are used in the fabrication of laminates from (a) vinyl chloridevinyl acetate resin and polyurethane foam, aluminium, Douglas fir plywood or rubber-modified polystyrene; (b) aluminium foil and window glass; (c) polyvinyl chloride and galvanized steel; and (d) acrylonitrile-vinyl chloride copolymer cloth, previously immersed in an emulsion of a polymer composition as in (i), squeezed and dried, and vinyl chloride-vinyl acetate resin; (iii) the polymer composition as in (i) is used as adhesive for bonding polyvinyl chloride or polyethylene panels to aluminium panels; and (iv) sheets of olefin polymer compositions are precoated with an emulsion of the polymer composition as in (i) and bonded to sheets of polystyrene containing mineral oil, rubbermodified polystyrene or vinyl chloride resin.
Patent GB-1250547-A (GB)
IPC: H01M6/36
Filed: 1969-03-27
Abstract: 1,250,547. Thermal cell. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 27 March, 1969, No. 16096/69. Heading H1B. Thallium sesquioxide is the major constituent of a depolarizer mixture which may also include a salt of an oxyacid and a metal, e.g. potassium perchlorate in a thermal cell such as one which comprises a plate-like assembly of a magnesium negative electrode, an electrolyte layer consisting of a eutectic mixture of lithium and potassium chlorides which becomes electrically conductive on heating, a depolarizer layer, and a nickel positive electrode.  The cells 20 can be assembled into a battery and are immersed in heating means 21 consisting of a metallic powder and an oxidizing agent, which is contained in a thermally insulating enclosure 22. The heating means is activated by an ignition element 23 consisting of an electrical heating element which can be heated to incandescence by current applied to terminal 24 from an external source and a priming composition.
Patent GB-1252731-A (GB)
Filed: 1967-07-26
Abstract: 1,252,731. Coin testing. LONDON TRANSPORT BOARD, and R. DELL. 10 Oct., 1968, [26 July, 1967], No. 34386/67. Heading G4V. A coin 5 inserted into a shoot 1 is supported in position on continuously driven rollers 2, 3 while diameter and thickness sensing rollers 4, 20 move against the coin, the movement of the rollers producing electrical signals which actuate acceptance/rejection means to alter the path of the coin. The movement of the rollers is triggered by a photo-cell 15 which is obturated by the coin when it reaches the rollers 2, 3. Mirrors 16, 24 mounted on the supports of the rollers 4, 20 respectively, each reflect light from a source into one of a plurality of photo-cells. Each photocell produces a characteristic output signal indicative of the diameter or thickness of the coin respectively. A milling detector 28 includes a flexible arm 29 in contact with the milled edge of the coin 5 which vibrates the arm to energize an electromagnetic transducer 30, 32 to produce pulse output signals whose frequency corresponds to the spacing of the sills on the milled edge of the coin. Tuned circuits (e.g. 38, 39, Fig. 7, not shown) respond to the frequency of the signals from the milling detector transducer (32) and outputs from the tuned circuits are combined with the output signals from the thickness and diameter measuring photo-cells (e.g. 19a, 19b) to produce D.C. signals indicative of the detection of coins having a value of e.g. 3d, 6d respectively. The circuit arrangements for 1/-, 2/- and 2/6 coins are analogous. The D.C. output signals, together with outputs from the photo-cell 15 positioned near the coin centre, and a peripheral photo-cell 15a, are applied to a solenoid 33 which operates a spring loaded plunger 36 to eject the coin from the rollers 2, 3. The same signals actuate a solenoid (44, Fig. 7, not shown), to close a flap in the shoot floor so that the ejected coin proceeds to a coin container or storage tube. In the absence of outputs characteristic of genuine coins, a time delay circuit (43) triggered by one or both photo-cells 15, 15a actuates the solenoid 33 to eject the coin via the open flap in the shoot floor to a reject station. Washers are detected since they actuate the photo-cell 15a. In an alternative embodiment, the sensing rollers 4, 20 are associated with one pair of driven rollers and the milling detector with a further pair of rollers.
Patent GB-1257131-A (GB)
IPC: C08K5/00
Filed: 1969-09-05
Abstract: 1,257,131. Graft polymer-plasticizer compositions. FARBWERKE HOECHST A.G. 5 Sept., 1969 [6 Sept., 1968], No. 44020/69. Heading C3G. A freely flowing mixture comprising (a) 99 to 85% by weight of a rubber/styrene graft polymer comprising 1 to 20% by weight of rubber and 99 to 80% of styrene and (b) 1 to 15% by weight of plasticizer, the percentages of (a) and (b) being calculated on the total mixture, is prepared by heating (a) and (b) in a mixer for 1 minute to 60 minutes at 120‹ to 220‹ C. and subsequently cooling the mixture to room temperature with continuous motion. The plasticizer may be a mineral oil or an ester of an organic acid with a C 4  to C 20 -alcohol, butyl stearate being used in the example in which the graft polymer is a butyl rubber/styrene graft polymer.
Patent GB-1259463-A (GB)
IPC: G06G7/122
Filed: 1968-09-04
Abstract: 1,259,463. Optimizing computers. QELEQ Ltd. 28 Aug., 1969 [4 Sept., 1968], No. 42125/68. Heading G4G. Relates to an analogue computer for solving a linear programming problem defined by M equations in N variables in order to optimize an objective junction by the method of steepest ascents. As described, the apparatus relates to optimizing (minimizing) the cost per unit weight of a mixture of N (three) constituents having fixed relative proportions by weight, the constituents being contained in known proportions in M (four) ingredients whose cost per unit weight is known. The specific quantities of the M ingredients required is also to be determined. If X i  is the cost of the ith ingredient, f it  the quantity of the first constituent contributed by the ith ingredient and C i  the cost per unit weight of the ith ingredient, the mathematical problem to be solved may be represented by the set of M simultaneous equations: dXi/dt=K 1 [A 1 f i1  + . . . A N f iN ] - K 2 C i  The apparatus comprises four (M) ingredient integrators 10-13 connected to four banks 14-17 of three (N) constituent potentiometers, each potentiometer being connected to each of three summing amplifiers 18-20 which provide signals representative of total quantities of each constituent, e.g.f 1 =f 11  = f 21 + ... f 41 . These sums f 1 , f 2 , f 3  are fed respectively to three error amplifiers 21-23 each of which has inputs, e.g. 30, 33, representing max. and min. limits. The output of the error amplifiers is zero if f lies between the max. and min. limits or has a positive or negative value if f falls short of, or exceeds these limits. Each output is fed through a respective diode dead-zone network 24-26 to a respective bank 27, 28 or 29 of four ingredient potentiometers, and the summed outputs, e.g. f 11 +f 12 +f 13 , of corresponding ingredient potentiometers are fed back to the integrators 10-13. Ingredient cost signals V c1  to V c4  are also fed to the integrators. The cost signals V c  are derived from the error amplifiers by means of diode networks 46, 48, Fig. 5, and amplifier 42 which inverts the max. positive signal from all the error amplifiers and compares it with the max. negative signal. The larger of the two negative signals is chosen and compared to a reference voltage + E in an amplifier 52 which is shunted by a diode to prevent the output going positive. The output of the amplifier is fed to a bank of four cost signal (V c ) potentiometers (not shown). A null - signal detector 53 is actuated in the case of insoluble problems. The integrators and error detectors may be provided with limit detectors which prevent or warn of an excess of any ingredient.
Patent GB-1265156-A (GB)
IPC: H02J7/24
Filed: 1968-08-01
Abstract: 1,265,156. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. July 1, 1969 [Aug. 1, 1968], No.36718/68. Heading G3R. A voltage regulator for the alternator rectifier unit (not shown) of a road vehicle comprises a transistor T3 in series with the field winding of the alternator, a transistor Tl responsive to a circuit R1, R2, 13 sensing the battery voltage, an intermediate transistor T2 and a feedback circuit C1, R7, the regulator operating in the conventional on/off oscillatory manner to maintain the battery voltage at a value determined by the setting of the adjustable resistor R2. The capacitor C2 acts to minimize radio interference but, since the circuit shown is designed for use with planar transistors, it is difficult to use a capacitor C2 of sufficiently high value to completely prevent interference. The problem is overcome by provision of the members R8, R9, C3 connected as shown. A warning lamp (not shown) is provided and the values of resistors R1, R3 and the base-emitter characteristic of the transistor T1 are chosen to produce automatic temperature compensation. In a modification the emitter of transistor T2 is connected to the line 12.
Patent GB-1265995-A (GB)
IPC: B23K9/028
Filed: 1969-02-05
Abstract: 1,265,995. Welding by fusion. W. H. PAUL Ltd. 24 March, 1970 [5 Feb., 1969], No. 6306/69. Heading B3R. In seam arc welding the periphery of a stainless steel end-closure disc 10 to the interior periphery of a cylindrical or oval stainless steel hollow shell 11 of a hot water cylinder, the disc having been snapped into a groove presented by a shell rib 12, the shell is rotated, about a horizontal axis or, preferably, an axis slightly inclined to the horizontal, past a non-consumable electrode 20 (e.g. tungsten or carbon) positioned exteriorly and substantially at bottom dead centre of the shell, and atmospheres of inert gas (e.g. argon) are provided at the welding region both exteriorly and interiorly (for backing) of the shell. The latter is clamped on to a spigot 14 of a rotatable work-holder 13. The electrode 20 is provided in a water-cooled torch 19 mounted on a carrier 16. To maintain the electrode tip at the correct spacing from the rib 12, the carrier is biased towards the shell by a spring 18 and has waisted rollers 21 engaging the shell at each side of the rib. The exterior inert gas is supplied through a pipe 23 and the torch interior and through a pipe 27 and a perforated shoe 26 which is positioned in advance of the welding region. The interior (backing) inert gas is supplied through a pipe 29 and a perforated shoe 28 which is disposed at the shell bottom dead centre and is free to float and, under gravity, seek the lowest possible position.
Patent GB-1266423-A (GB)
IPC: H02K3/28
Filed: 1969-05-13
Abstract: 1,266,423. Winding lay-outs for dynamoelectric machines. ROTOS MOTORI ELETTRICI S.p.A. 13 May, 1969 [13 May, 1968], No. 24279/69. Heading H2A. In an asynchronous motor having a threephase winding, a reduction in the number of slots normally required is obtained by filling alternate slots with one phase winding 1, halffilling the intermediate slots with a second phase winding 2 and filling the remaining halves of the intermediate slots by the third phase winding 3 which is reversely connected with respect to the winding 2, the starts or ends of the windings being star-connected at W, U, V and the relationship between the numbers of conductors per slot U 1 , U 2 , U 3  respectively for the three phases being U 2 =U 3 =(U 1 /#3). The winding produces two alternating fields, one from phase 1 and a resultant field from phases 2 and 3 phase displaced by 90 degrees, the two together generating a rotating field.
Patent GB-1266629-A (GB)
IPC: E04H17/10
Filed: 1969-10-31
Abstract: 1,266,629. Fence droppers. BOA DROPPERS (PTY.) Ltd. 31 Oct., 1969 [22 Nov., 1968], No. 53513/69. Heading E1B. A fence dropper comprises a resilieratlyflexible galvanized or plastics coated rod 18 having a plurality of binding wires 22 secured thereto by welding or brazing, the binding wires being twisted round fencing wires to hold them spaced apart The rod may have locating formations for the spaced binding wires which may also be twisted around the rod.
Patent GB-1290429-A (GB)
IPC: H03M1/74
Filed: 1970-11-05
Abstract: 1290429 Digital to analogue converter HUGHES AIRCRAFT CO 5 Nov 1970 [16 Dec 1969] 52719/70 Heading G4H A D/A converter comprises a plurality of F.E.T.'s 12-18 each having their sourcedrain paths connected in parallel between conductors 6, 8 and each having their control electrodes connected to corresponding outputs of the source-drain paths of a second, corresponding plurality of F.E.T.'s 22-28, the inputs of which paths are connected to each receive a bit of a digital input word. The impedances of the source-drain paths of the first mentioned F.E.T.'s 12-18 are arranged to be related in a mathematical series, preferably a geometric series with a common ratio of 2. In use, a digital input word is applied, each bit to a terminal 32-38, and a gating pulse at a terminal 40 to render the F.E.T.'s 22-28 simultaneously conducting to transfer the input potentials to the control electrodes of the F.E.T.'s 12-18, where a binary input of "1" will render the corresponding F.E.T. conducting and cause a current corresponding to the . path resistance of the device to flow in line 8, an inherent or parasitic capacitance 42-48 associated with each control electrode causing the retention of the input potentials until a further gating pulse from the terminal 40 is received. The analogue output on line 8 is taken to an inverting terminal of an operational amplifier 50, a bias voltage V b  being applied to non-inverting terminal 56, the voltage at the inverting terminal thereby being constrained to ensure the transistors 12-18 operate in their linear region.
Patent GB-1295365-A (GB)
IPC: B26D3/16
Filed: 1970-08-28
Abstract: 1295365 Cutting SVENSK INDUSTRIS KONSTRUKTIONS OCH BERAKNINGSKONTOB SIKOB AB 28 Aug 1970 [29 Aug 1969] 41556/70 Heading B4B Apparatus for cutting elastic bands 12 from a rubber tube 3 comprises a counter knife 6, means 7-9 for moving a knife blade 5 towards and past the counter knife 6 and means 4 for indexing the flattened end of the tube 3 between the co-operating knives 5, 6, the free end of a finger 14 or the like being arranged to enter a loop 18 initially formed during cutting to catch the band 12 when completely severed from the tube 3. On actuating an operating lever 9, a shaft 8 transmits operative movement to one of a pair of feed rolls 4, the knife blade 5, secured to the shaft 8, co-operating with the counter knife 6 to cut off the band 12. A cap 10, see also Fig. 2 (not shown), projecting from the blade 5 engages and folds out the band 12 as it forms, the finger 14 entering an aperture 15 in the operative surface 11 of the cap 10 to catch the band 12. On retracting the blade 5, the finger 14 pivots outwardly on a shaft 13 for band removal. The finger 14 may be provided with means (not shown) for delivering the band 12 in a stretched condition.'
Patent GB-1295382-A (GB)
IPC: E02B11/02
Filed: 1970-04-14
Abstract: 1295382 Trench shoring frames A R S MORRICE 19 April 1971 [14 April 1970] 17567/70 Heading E1E The trench shoring frame of the present Specification is identical to that disclosed in Specification 1295381 but the substantive claim hereof is directed to the relative movable aspects of the superimposed frame sections.
Patent GB-1295562-A (GB)
IPC: B65D77/20
Filed: 1971-04-19
Abstract: 1295562 Jointing SWISS ALUMINIUM Ltd 19 April 1971 [6 March 1970] 23336/71 Heading B3V [Also in Divisions B5 and B8] A package comprises two foil parts heatsealed together by a seam which includes a layer of a copolymer of vinyl chloride and vinyl acetate compounded with an acrylic resin. The latter may comprise polyacrylic acid or acid ester or polymethacrylic acid or acid ester. One or both parts may comprise aluminium foil provided with a coating of the copolymer, the or one coating being compounded with acrylic resin. Alternatively, a strip of aluminium (14, Fig. 2) coated on at least one of its sides with compounded copolymer is inserted in the seam to extend at least part-way therealong. The package parts may form a rachet (Fig. 2) or a flanged P.V.C., polystyrene or polycarbonate box (1, Fig. 1) provided with a lid (3) having an embossed tear tab (4). The aluminium strip may form a tear tab which upon removal releases a pouring aperture. The foil layers of a socket may provide tear tabs (15, Fig. 2). The copolymer may be polymerized with maleic acid. Aluminium/paper and aluminium/paper/aluminium foils are disclosed.
Patent GB-1296559-A (GB)
IPC: H01B12/10
Filed: 1970-02-17
Abstract: 1296559 Super-conductors MASCHINENFABRIK OERLIKON 17 Feb 1970 [17 Feb 1969] 7653/70 Headings H1A A5 and A4D A super-conductor cable comprises a hollow matrix of normally conductive material in which uniformly distributed stabilized conductors have been embedded by a drawing down process, in  which each of the stabilized conductors comprises a plurality of super-conductor veins embedded in normally conductive material by a previous drawing down process. A stabilized conductor is produced by inserting rods of Nb-Ti alloy in a Cu billet, subjecting to pressure and reducing the cross-section at a temperature of 560 to 750‹C and then performing a plurality of cold working steps, e.g. drawing or rolling, to reduce the cross-section. A plurality of such stabilized conductors are inserted in holes in a further billet of Cu or Al which is extruded round a mandrel at 400 to 500‹C to form a central passage. The conductor is then cold drawn to its final size. The passage and the external surface of the cable may have a rectangular, polygonal or circular cross-section.
Patent GB-1303433-A (GB)
IPC: H02G3/04
Filed: 1969-03-15
Abstract: 1303433 Cable conduits EGATUBE Ltd 13 March 1970 [15 March 1969] 13740/69 Heading H2C A cable conduit, e.g. of P.V.C. comprises a body 10 with radiused corners from which opposed flanges 12 extend to form a gap extending along the body. A cover 14 with outer edges 15 having an inner radius slightly less than the radiused corners has a pair of projections 16 which are curved outwardly or angled outwardly and spaced so as to clip within the gap and close the conduit, the radiused corners of the cover engaging the radiused corners of the conduit body. The projections 16 may be curved and subtend an angle of less than 180 degrees, or as shown each projection may comprise straight portions integral with a curved central portion.
Patent GB-1304011-A (GB)
IPC: G01N30/34
Filed: 1969-03-06
Abstract: 1304011 Electrolytic cells for generating hydrogen CALIFORNIA INSTITUTE OF TECHNOLOGY 5 March 1970 [6 March 1969] 12003/69 Heading C7B [Also in Division B1] A gas chromatograph system comprises in combination a column for separating a gas sample into its component fractions and an electrolytic cell having an anode and a cathode both formed from or incorporating a metal selectively permeable to hydrogen only when heated to an elevated operating temperature, e.g. a porous ceramic base coated with Pd or Pd-Ag alloy, and an electrolyte capable of transporting ionic H between the electrodes, e.g. fused alkali metal (K or Na) hydroxide at between 180 and 500C, the column being connected at or adjacent its respective ends to the anode and cathode compartments of the cell whereby hydrogen carrier gas leaving the column enters the cell, is separated from the component fractions and then reintroduced into the column, and detector means for sensing the component fractions. The electrodes may be formed by the side walls of the electrolyte container; or by hollow tubes, either separate or coaxial (as in Fig.1A), where hydrogen gas flows through the inner anode tube 1, to diffuse through its wall, be ionized and transported to the outer cathode tube 2 to be generated and collected in the housing 4.