baber/WOPTO huggingface dataset:
Patent GB-1142538-A (GB)
Title: Polymerisation of pivalolactone
Inventor: KLOOTWIJK ARIE
IPC: C08G63/82
Filed: 1967-11-10
Abstract: 1,142,538. Polymerizing lactones. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 10 Nov., 1967, No. 51201/67. Heading C3R. Pivalolactone is polymerized in the presence of a cationic initiator which is a complex of a Lewis acid and a trihydrocarbylmethyl chloride. Specified complexes are those of the halides of Zn, Cd, Hg, B, Al, Ge, In, Ti, Sn, Pb, P, V, Sb, Bi, As, Fe, Co or Ni and triphenylmethyl chloride. Up to 50 mol per cent of the pivalolactone may be replaced by beta-propiolactone, alpha, alpha-diethyl-beta-propiolactone or alpha - methyl - alpha - ethyl - beta - propiolactone. Polymerization is effected at - 50‹ to +300‹ C. by a bulk process or in a hydrocarbon diluent.
Patent GB-1321570-A (GB)
Title: Composition for the treatment of hair
IPC: A61Q5/00
Filed: 1971-11-04
Abstract: 1321570 Hair-conditioning composition ALEXANDRE 4 Nov 1971 [4 Nov 1970] 51286/ 71 Heading A5B A hair-treating composition comprises (a) a beef marrow extract obtained by mixing beef marrow with warm water, and separating from the solid component the light yellow part and (b) 1.8-2.2% of cetyl ricinoleate based on the weight of beef marrow extract. The composition may also include essential oils, e.g. lavender essence, balsam of tolu, verbena essence, basil essence, bergamot essence and thyme essence, an antioxidant, e.g. butylated hydroxy toluene, a fungicide, e.g. methyl-propyl-benzyl para-oxybenzoate and white bees-wax.
Patent GB-1122189-A (GB)
Title: A nuclear fuel assembly, and a metal grid for same
IPC: G21C3/34
Filed: 1965-12-03
Abstract: 1,122,189. Fuel elements. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. 3 Dec., 1965 [7 Dec., 1964], No. 51388/65. Heading G6C. A metal grid suitable for holding nuclear fuel elements to form a fuel assembly comprises a plurality of mutually crossing wires arranged so as to leave spaces at regular intervals in which the fuel elements may be located, the wires extending across the grid and being formed with bands of which the peaks lie at the edges of the spaces. As shown in Fig. 1a, the wires 3 form two groups, the wires of the same group being parallel to each other, and the directions of the wires of the two groups being at right angles to one another. In the upper left-hand portion of the Figure, only one layer of the two groups of wires is shown. The lower left-hand portion shows two layers of wires, these being held at a short distance apart inside a frame 2. The wires 3 have zig-zag shaped bends 4 to right and to left which at their peaks contact the side walls of the fuel elements 1 to transmit a supporting force. In the lower left-hand portion, alternate wires of the same groups have oppositely directed bends. The bends 4 lie in a plane at an acute angle with a plane at right angles to the rods which is also the plane generally defined by the layer of wires. Preferably the planes of the zig-zag wire sections of the same wire are parallel with one another and inclined to the plane of the wire layer at an angle of 30 degrees. Alternate zig-zag 'bends may extend above -and below the " layer "  plane.
Patent GB-1414457-A (GB)
Title: Methods and means for applying single pieces of a sheet material to a length of sheet material
IPC: B31B19/86
Filed: 1971-11-11
Abstract: 1414457 Labelling G OESTERGAARD [trading as VEJLE PLASTIC] 7 Nov 1972 [11 Nov 1971] 52412/71 Heading B8F [Also in Division A4] In a method, and machine therefor, of applying sheet patches or labels, e.g. bag hand-hole reinforcements 18 to a moving web 2, a strip 58, 60 is fed to a number of rotatably mounted plates 33 and cut between consecutive plates, e.g. by piston moved cutter 50 entering slots 32, a cut patch being pressed and adhered to web 2 by moving the entire body of plates 33, after which the body is retracted and rotated, e.g. by piston operated rack and pinion 38, 42 to position the next cut patch to be applied to the bag web 2 after it has been stepped a bag length. The web 2 may be folded at one edge, e.g. at pleat 10 and open at the other, and have hand-holes punched through the patches at 16 and the bag lengths sealed and severed at 8, or the web may be tubular with transverse seals and cuts at 8 forming the bag bottom and mouth, or a single ply web may have two patches applied on one face and the web folded, sealed and cut to form the bag with the patches inside or outside. As shown patches are applied to both outside mouth edges by upper and lower hexagonal plate bodies 33 carried by pivoted jaws 22, 24 movable together by pistons 28, 30, the patches being releasably held on the plates 33 by suction at 52, 53, by pins or by a weak adhesion on the plates. Adhesion 56 is applied to strip 60 at 62 as it leaves roll 58. The jaws 22, 24 may be connected to move linearly by a rotating crank. The machine may be used for applying decorative labels or for forming pockets on web 2.
Patent GB-1278535-A (GB)
Title: Centrifugal pumping plant
Inventor: WEIS FRANK GEORGE
IPC: F04D9/04
Filed: 1970-11-04
Abstract: 1278535 Centrifugal pumps ECODYNE CORP 4 Nov 1970 [6 Nov 1969] 52456/70 Addition to 1288080 Heading F1C In a pump assembly as described in the parent Specification, comprising a centrifugal pump unit mounted on a plate 15 which can be mounted on the upper periphery of a manhole and having a motor 25 mounted on the upper side of the plate and a centrifugal pump 30 mounted on the lower side of the plate with its volute 31 connected directly to the plate, the pump impeller 28 is positioned with respect to an aperture 42 in the plate and an aligned aperture in the volute so as to permit the motor and impeller to be lifted from the plate without disturbing the volute or the pump inlet 35 and outlet (36).
Patent GB-1277763-A (GB)
Title: A method of, and plant for, casting metallic melts
Inventor: HAMMARLUND PER ERIK GUNNAR
IPC: B22D11/116
Filed: 1969-10-27
Abstract: 1277763 Continuous casting ALLMANNA SVENSKA ELEKTRISKA AB 27 Oct 1969 [28 Oct 1968] 52474/69 Heading B3F [Also in Divisions C7 and F4] A method of casting comprises the steps of introducing a melt of metal or alloy into a ladle 8 provided with electromagnetic, low-frequency, multiphase stirring means 9, placing a gas-tight lid 10 over the ladle, the lid being provided with heating means 11, keeping the melt hot while stirring it, and tapping the melt into a casting mould 15 through a valve 12 in the bottom of the ladle. In operation, the atmosphere above the melt is evacuated for the ladle via means 16, causing the melt to be degassed and refined while its temperature is maintained constant or raised.
Patent GB-1308939-A (GB)
Title: Field effect transistors
IPC: H01J37/34
Filed: 1970-11-05
Abstract: 1308939 Sputtering apparatus INTERNATIONAL BUSINESS MACHINES CORP 5 Nov 1970 [26 Nov 1969] 52609/70 Heading C7F [Also in Division H1] In manufacture of an IGFET, a S/C wafer of desired conductivity e.g. p-type Si is masked with SiO 2  which is etched over photo-resist into source and drain windows, into which P is diffused to derive underlying N-type areas. Gate dielectric is formed by etching the oxide over the source-drain channel and reoxidizing to a predetermined thickness, which is again doped with P. Electrodes of e.g. Al are evaporated on the source, drain, and gate after which the device is annealed. Thereafter SiO 2  or Si 3 N 4  en-capsulation is sputtered by RF on the wafer 50 which is placed on substrate holder 42 supported in a chamber 10 whose base-plate 12 is removable and whose top-plate 11 carries a fluid coolant structure 32 within post 24, also carrying electrode structure 16 comprising target 20 of SiO 2  or Si 3 N 4  adjacent to cathode 22, insulated by ceramic seal 26 from post 24, which carries earthed shield 30 enclosing the cathode. The chamber may be filled with gas e.g. argon through valve 14 and maintained at desired pressure by pump 17. RF power is applied to cathode 22 over structure 32, and coolant or heating means may be positioned adjacent to the substrate holder 42, whose support and base-plate 12 act as anode to a gallium coated surface of the wafer. The resultant discharge is concentrated by electromagnets 44. After sputtering the device is annealed in e.g. N 2  for passivation and stabilisation.
Patent GB-1422226-A (GB)
Title: Voltage regulator
IPC: G05F5/00
Filed: 1973-11-13
Abstract: 1422226 Automatic voltage regulation MOTOROLA Inc 13 Nov 1973 [20 Nov 1972] 52634/73 Heading G3X  A voltage regulator circuit includes a feedback loop which supplies a constant current to a reference device. The circuit uses a four-electrode controlled element. As shown, a Zener diode 20 receives constant current from a regenerative loop 17 including a low current gain lateral transistor 18 with a split collector ring, and a further transistor 19. Circuit elements 12, 13, 15 form a starting circuit which is inoperative during normal supply working. The current in transistor 19 is limited to a fixed value by the valve of a resistor 27 which turns on a transistor 25 connected in series with a load 26. Hence the current through Zener diode 20 is held constant and a constant voltage is supplied to the base of transistor 25 so that the load voltage is regulated.
Patent GB-1162029-A (GB)
Title: Shears or Cutting Tool which Allows Reversal of the Direction of Travel of the Tool
Inventor: LEFORT YVON
IPC: B23D17/04
Filed: 1966-11-24
Abstract: 1,162,029. Shearing. Y. LEFORT 24 Nov., 1966 [12 Aug., 1966], No. 52645/66. Heading B3W. A power-operated shearing or cutting tool wherein a reversing device is incorporated in a shearing or cutting jaw operating system whereby the direction of travel of a jaw is reversed immediately upon operation of the device, irrespective of the position of the jaw in a jaw operating cycle. A shear having a fixed lower cutting blade 12 and a pivoted upper cutting blade 10 has means to stop and reverse the movement of the upper blade at any point in its travel. The cutting movement of the upper blade is initiated by rotation of a lever 6 which produces corresponding rotation of an arm 23, connected to a single-acting valve controlling the admission of hydraulic fluid to the doubleacting operating cylinder 7 of the blade. The fluid is admitted to one end or the other of the cylinder according to the position of a two-way valve controlled by a rod 22, which is pivotally connected to one arm of a three-armed lever 28. A second arm of the lever is connected to a rod 26 on which are mounted two adjustable stops 25. A member 27, which slides on the rod, moves with the upper blade and engages one of the stops at each end of its travel to reverse the two-way valve. The valve can be reversed manually at any time by means of a lever 20 which rotates about the axis of a spindle on the other end of which is secured a radial arm 24. This arm enters a slot in the rod 22, so that rotation of the lever 20 causes reciprocation of the rod 22.
Patent GB-1274565-A (GB)
Title: Process for the straightening of human hair
IPC: A45D7/00
Filed: 1970-11-05
Abstract: 1,274,565. Straightening hair. WELLA A.G. 5 Nov., 1970 [6 Nov., 1969], No. 52674/70. Heading D1P. In a process for the straightening of human hair, a keratin-softening substance is allowed to act thereon, surplus substance is combed out, the hair is then contacted with a hairswelling agent free from strong alkali and physiologically harmless, the hair is smoothed with repeated combing through, and is finally fixed or neutralised. Suitable keratin-softening substances are alkali metal hydroxides, alkali metal and/or ammonium sulphites and bisulphites, and water-soluble salts of mercapto-carboxylic acids. Suitable swelling agents are C 2-4  monovalent aliphatic alcohols, aromatic alcohols e.g. benzyl alcohol, C 5-6  aliphatic diols or ether alcohols, water-soluble sulphoxides and sulphones, water-soluble thiocyanates, thiourea, and urea and water-soluble derivatives thereof. The hair may be simultaneously coloured by the incorporation of oxidation colouring agents or directly absorbed dyestuffs.
Patent GB-1515200-A (GB)
Title: Power transmitting mechanism for initiating movement of a high inertia load
IPC: F16H35/18
Filed: 1975-12-30
Abstract: 1515200 Starting engines; turning gear TWIN DISC Inc 30 Dec 1975 [8 Jan 1975] 53235/75 Heading F1K In order to prevent overspeed and mechanical shock in the drive 15-25 and over-run clutch 14 of the auxiliary drive of a starting mechanism of the type having an auxiliary drive to provide break away and a main drive 2, 5, 5', 6 to 12 to accelerate the load, when turning, to an appropriate speed, an hydraulic retarder 40 is arranged to limit the initial r.p.m. of the auxiliary drive input shaft 24 until backlash and load are taken up, the hydraulic fluid then being dumped via lines 80, 53 on a signal to solenoid 46 of valve 48 which causes dump line 53 to open and a reduced pressure signal via line 55 to open dump valve 60, to allow the auxiliary drive to reach its full speed. The torque converter TC is 'dumped' initially to reduce 'drag' on the auxiliary system. The hydraulic retarder comprises an hydraulically coupled device having one of the associated vane portions fixed with respect to the starter mechanism housing. The valve 48, Fig. 3, is maintained in the non-dump mode by fluidpressure from by-pass 49 acting through orifice 47, on the end of piston 50a. Solenoid plunger 46a closes the orifice 47 to allow the control pressure to decay via a bleed in the piston 50, the piston moving under the action of spring 70 to the dump position. Valve 60 is arranged to bleed fluid at all times from the coupling for cooling purposes, a further discharge port being opened when the fluidpressure at outlet 54 of valve 48 is reduced when piston 50 moves to the dump position. The retarder may be used as a safety device or a speed-controller by refilling with fluid when appropriate. The auxiliary drive produces a load running speed of 6 r.p.m. The power sources may be electric motors 3 and 28 and the load a turbine GT and generator G.
Patent GB-1158586-A (GB)
Title: Improvements in and relating to Multi-Stand Mills
Inventor: YEOMANS KENNETH ALFRED
IPC: B21B1/18
Filed: 1965-12-16
Abstract: 1,158,586. Rolling. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 15 Dec., 1966 [16 Dec., 1965], No. 53429/65. Heading B3M. A multi-stand rolling mill includes individual stands which are geared to a common driving unit and are graded according to their modulus compliance. Any change in the yield characteristic of the material being rolled results in a variation in roll separation, leading to an equal percentage change in cross-sectional area of the material at each stand.
Patent GB-1303307-A (GB)
IPC: H01M8/24
Filed: 1970-11-11
Abstract: 1303307 Making batteries INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 11 Nov 1970 [13 Nov 1969] 53650/70 Heading B5A [Also in Division H1] A method of moulding a casing wall on to the edges of a pile of plates, e.g. of a fuel cell, in which passageways are provided in the wall leading to spaces between adjacent plates, consists in locating one or more separators 13-15 with teeth 13b, 14b, 15b along one or more sides of the pile of plates, with the teeth fitting closely into the spaces between adjacent plates, placing the pile in a mould 26 and casting resin about the edges of the plates to a level not above that of the teeth, allowing the resin to harden and removing the separators, Fig. 4A. The teeth may be of an elastic material to assist withdrawal.
Patent GB-1493380-A (GB)
Title: Thiadiazolyl-azo dyestuffs
IPC: C09B44/10
Filed: 1974-12-11
Abstract: 1493380 N-Chlorocyanoformamidine and aminothiadiazole derivatives prepared therefrom CIBA-GEIGY AG 11 Dec 1974 [21 Dec 1973] 53668/74 Heading C2C [Also in Division C4] N-Chlorocyanoformamidine [NC-C(NH 2 ) = N-Cl] is prepared from N-chlorocyanoformimide acid chloride and ammonia (Preparation (a)).  3-Cyano-5-amino-1,2,4-thiadiazole is prepared from N-chlorocyanoformamidine and potassium thiocyanate in methanol by cyclization (Preparation (b)). 3-Trichloromethyl-5-amino-1,2,4-thiadiazole is prepared from N-chloro-trichloroacetamidine and potassium thiocyanate as above (Preparation (c)).
Patent GB-1236497-A (GB)
Title: Metallic alloy, in particular for the manufacture of bearings
Inventor: DACCO ALDO
IPC: C22C18/04
Filed: 1969-11-03
Abstract: 1,236,497. Zn base bearing alloy. A. DACCO [trading as LIASA DEL DOTT. ALDO DACCO.] Nov.3, 1969 [Nov.14, 1968], No.53841/69. Heading C7A. A zinc base alloy consists of: - Co 0À02 - 0À35% electrolytic Cu 2 - 8% and pure Al 12 - 42% the balance being high purity Zn. The alloy may be annealed at 360-390‹C. for 10 to 15 hours and/ or tempered at 220-250‹ C. for 6 to 48 hours. Use:- Bearings.
Patent GB-542526-A (GB)
Abstract: 542,526. Knitting - machines. BALLITO HOSIERY MILLS, Ltd., and SHAMBROOK, J. A. June 7, 1940, No. 9993. [Class 74 (ii)] A cranked yarn guide for a circular machine is made in two parts 11, 12 pivoted together at 13 and also pivoted at 1 to move as a whole against a spring 7. The parts 11, 12 are normally held in position by a weaker spring 14. The guide is put out of action by a lever 4 which cants up the part 12 carrying the yarn supply tube 2 without displacing the part 11. The spring 14 may be coiled about an arcuate pin fixed to the part 12 with its centre of curvature at 13. The Provisional Specification also describes a rigid form of yarn guide. A wedge pivoted at 13 is canted up by the lever 4 to draw back a spring pressed sliding yarn supply tube clear of the line of needle hooks.
Patent GB-1114113-A (GB)
Title: Improvements in or relating to prolines and the manufacture thereof
IPC: C07D499/00
Filed: 1965-05-25
Abstract: Novel compounds of the formula <FORM:1114113/C2/1> (wherein R is an organic radical removable by catalytic hydrogenolysis and R1 is H or C1- 11 alkyl) and the D-isomers thereof are prepared by treating the corresponding 1-substituted-4-keto-prolines with a Wittig reagent (an alkylidenetriphenylphosphorane). R may be, for example, triphenylmethyl, benzyl, p-nitrobenzyl, tosyl, a benzyloxycarbonyl group in which the benzene ring may be para-substituted by nitro, methoxy, chloro or bromo, a phenyloxycarbonyl or p-(C1- 4 alkyl)-phenyloxycarbonyl group, or allyloxycarbonyl.  Examples are given and cyclohexylamine salts of some of the products are described.  4-Keto-1-tosyl-L-proline is prepared by oxidation of 4-hydroxyl-1-tosyl-L-proline, itself prepared by N-tosylation.  1 - p - Nitrocarbobenzoxy - 4 - keto - L - proline (dicyclohexylamine salt also described) is prepared by oxidation of 1-p-nitrocarbobenzoxy-4-hydroxyproline (dicyclohexylamine salt also described), prepared in turn from 4-hydroxy-L-proline and p-nitrocarbobenzoxychloride.
Patent GB-1486627-A (GB)
Title: Electric power source
IPC: H02M3/07
Filed: 1974-12-17
Abstract: 1486627 DC-DC converting MASSACHUSETTS INSTITUTE OF TECHNOLOGY 17 Dec 1974 [19 Dec 1973] 54352/74 Heading H2F In an electric power source comprising a plurality of N stages connected in cascade, each stage includes a pair of input terminals across which a voltage source B1 or capacitor C1 is connected and having switching transistors Q1, Q2 arranged to connect the first and second terminals T1, T2 selectively to a third (output) terminal T3 of the stage which in turn is connected to one of the first and second terminals of the next stage. Each stage has bootstrap or positive feedback of less than unity gain (R2) so as to charge the capacitor or voltage source of the next stage with constant current. As described, in each stage, transistor Q2 is turned on by an external signal L1 so that Q1 is turned off. This action allows all capacitors C1 to be charged in parallel from source B1. At the end of the pulse L1, Q2 will turn off and Q1 turn on, so connecting capacitors C1 in series to a load 31, giving a voltage-multiplied output of 4,000 V from a source B1 of 250V. A positive feedback loop having a gain greater than unity is provided by C3, R3 which tends to speed up the change of conduction of Q2, Q1 at the end of the pulse L1. A voltage step-down function is also suggested. The pulses to L1 ... L N  may be optically coupled. The last three stages may be operated in 80 volt steps so as to allow variation of the output voltage in smaller steps.
Patent GB-1450713-A (GB)
Title: Nematic liquid crystal material
IPC: C09K19/46
Filed: 1973-11-27
Abstract: 1450713 Azoxy-benzenes SUWA SEIKOSHA KK 27 Nov 1973 [6 Dec 1972 13 March 1973] 54729/73 Heading C2C [Also in Division C4] A nematic liquid crystal compound of the formula or its isomer, where X is alkyl and X<SP>1</SP> is alkoxy or acyloxy is prepared by esterification or alkylation of a p-alkyl-p<SP>1</SP>-hydroxyphenylazobenzene and oxidizing the product with acetic acid and hydrogen peroxide. The azobenzene compound is prepared via diazotization of an alkylaniline. Reference has been directed by the Comptroller to Specification 1,418,441.
Patent GB-1368974-A (GB)
Title: Brakes for materials hoists
IPC: F16D59/02
Filed: 1971-11-26
Abstract: 1368974 Lift cage catch gear ACE MACHINERY Ltd 16 Feb 1973 [26 Nov 1971] 55015/71 Heading B8L [Also in Division F2] An emergency hoist brake has a pair of cams 10, mounted either side of a guide rail and each having a running surface 11 adjacent to but spaced from the rail when non-actuated and a braking surface 12, a biased lever arrangement connecting the cams to a suspension beam having a pulley assembly for the hoist cage such that when forces due to the cage weight are released from the suspension beam, the levers pivot the cams into braking engagement with the rail. The running and braking surfaces 11, 12 are flattened and mutually angled at 45 degrees and the braking surfaces may have teeth. The cams 10 are mounted on shafts 14 mounted in holes at inner corners of respective pairs of triangular plates 15, outer corners of which are pivotally connected to approximately vertical levers 16 pivoted to the beam which carries the pulley assembly around which a hoisting rope extends. Pins 19 are mounted in the third, lower corners of the plates 15 and are biased towards each other by compression springs 18 for braking action.
Patent GB-1372358-A (GB)
Title: Treatment of sewage or contaminated water
IPC: C02F1/52
Filed: 1970-11-20
Abstract: 1372358 Chromium-containing coagulants ALBRIGHT & WILSON Ltd 12 Nov 1971 [20 Nov 1970] 55407/70 Headings C1A and C1C A coagulant for use in treating contaminated water is made by dissolving chrome residue wholly or partially in a strong mineral acid. "Chrome residue" refers to the residue left after the extraction of chromium from chrome ore. The residue consists principally of metal oxides, generally Fe2O3, Al2O3, MgO and Cr2O3. Generally the coagulants consist of the chlorides and/or sulphates of ferric iron, aluminium, trivalent chromium and magnesium, substantially free from hexavalent chromium. The coagulant can be used in the treatment of water, industrial effluents, sewage, sludge or other aqueous solutions or suspensions containing contaminants such as inorganic, bacterial or colloidal organic matter. In typical examples (4) dry chrome ore residue is refluxed with sulphuric acid and iron powder (to reduce any hexavalent chromium), calcium oxide is added and the solution is then filtered; (6) 5% solids sludge from domestic sanitary sewage is added to solution prepared as in (4), of different dilutions and the filterability is determined.