baber/WOPTO huggingface dataset:
Patent GB-1273706-A (GB)
Title: Continuous extrusion of endless sections
Inventor: KNIPP ULRICH
IPC: B29C48/06
Filed: 1970-11-20
Abstract: 1,273,706. Foam filled extruded section. FARBENFABRIKEN BAYER A.G. 20 Nov., 1970 [27 Nov., 1969], No. 55271/70. Heading B5A. [Also in Division C3] A foamable plastics liquid reaction mixture 15 is introduced, from a cooling chamber 9 and via an axially adjustable tube 10 (which may comprise an internal former), to foam as a core within an extruded tubular thermoplastics covering 3 at a location, downstream of the tube extrusion die outlet 2, at which the covering has been cooled by a sizing die 4 (comprising a cooling jacket 5 and suction chamber 6) to a temperature not greater than 100 C., and preferably of 20 to 50 C. The tube 10 is provided with seals 12, 13, the latter to prevent reverse flow of the mixture. It is stated that the extruded tube into which the foam is introduced may be supported by internal compressed air pressure. The process produces a higher density outer zone 16 of the core, e.g. 1.2 gm./c.c., than of its interior, e.g. 0.3 or 0.4 gm./c.c. The covering may comprise polyethylene, polypropylene, polyvinyl or polyvinylidene chloride, polystyrene, polycarbonate, and polyamide. The core may be based on polyurethane, unsaturated polyesters, epoxide resins, and #-caprolactam, as well as their copolymers. In one example, the thermoplastics covering comprises a tube of polystyrene, acrylonitrile - butadiene - styrene polymer, or polyamide, and the reaction mixture comprises a polyurethane comprising specified proportions of two components; (A), polyether of ammonia and propylene oxide, polyether or trimethylolpropane and hexane @riol reacted with propylene oxide and ethylene oxide, 1,4- butane diol, trichloromonofluoromethane, permethylated diethylene triamine, polysiloxane polyalkylene glycolether; and (B), carbodiimide - modified diphenylmethane - 4,41 - diisocyanate, yielding a solid zone 16 of 1.2g./c.c. In another example, the covering comprises a low-pressure polyethylene box section, and the core comprises components; (A), unsaturated polyester, Na-salt of sulphonated ricinoleic acid, bis - (dimethylethylamino)- methylamine, dimethyl polysiloxane; and (B), methylethylketone; and (C) 4,4<SP>1</SP>-diphenylmethane diisocyanate, yielding a solid zone 16 of 1.1 gm./c.c. which falls to 0.37 at the core centre.
Patent GB-1468990-A (GB)
Title: Method of making spinning dopes
IPC: D01F6/18
Filed: 1974-12-23
Abstract: 1468990 Production of acrylonitrile polymer spinning dopes MONSANTO CO 23 Dec 1974 [26 Dec 1973] 55392/74 Heading C3P A method for making a spinning dope comprises (a) mixing a mixture of water and an acrylonitrile polymer containing at least 35 wt. per cent acrylonitrile units, with a solvent for the polymer, to form a slurry; (b) heating said slurry at a pressure and temperature and for sufficient time to dissolve the polymer but not to evaporate the water; and (c) passing the solution/water mixture through an elongated vaporization zone along which there is a pressure gradient which is sufficient to flash vaporize the water but not to gel the solution. Suitable solvents are dimethyl acetamide, dimethyl formamide and dimethyl sulphoxide. In the examples an acrylonitrile/vinyl acetate polymer is used.
Patent GB-1444290-A (GB)
Title: Recovery of gallium oxide from solutions
IPC: C01G15/00
Filed: 1974-12-23
Abstract: 1444290 Recovery of Ga 2 O 3  ALUMINIUM CO OF AMERICA 23 Dec 1974 55563/74 Heading C1A Ga 2 O 3  is precipitated, in part, along with Al 2 O 3 , from sodium aluminate solutions, by passing CO 2  into the solution, so producing NaHCO 3  in the solution, and thereafter further co-precipitating Al 2 O 3 /Ga 2 O 3  from the resultant solution by adding sodium aluminate to that solution.
Patent GB-1436355-A (GB)
Title: Particulate compositions comprising an active substance isolated by an inert material and their production
IPC: B01J13/14
Filed: 1973-12-04
Abstract: 1436355 Preparation of particulate materials P SPEISER 4 Dec 1973 [4 Dec 1972] 56045/73 Heading C3R [Also in Division A5] Particles having a diameter less than 200 nanometres (referred to as "nanocapsules") are made by forming a dispersion with substantially mutually insoluble aqueous and hydrophobic phases in which the particles of disperse phase are less than 200 nanometres in diameter and contain both a polymerizable monomer substantially insoluble in the continuous phase and an active material, and causing polymerization of the monomer without substantially decomposing the active material. The product is said to be composed of particles of various structures including a "microcapsular" structure and forms in which the active material is held within a molecular lattice of the polymer. It may be made by forming an aqueous phase in which the active material is dissolved or colloidally disposed, dispersing it in an immiscible non-aqueous phase, e.g. n-hexane, adding a water-insoluble monomer, e.g. acrylamide or N,N<SP>1</SP>-methylene-bis-acrylamide and causing polymerization thereof, e.g. by irradiation. A suitable surface active agent may be added to the continuous phase to assist in dispersing the disperse phase the process being carried out using either an aqueous (as above) or non-aqueous disperse phase. In the latter case, suitable monomers for use are acrylic and methacrylic acids. The particles may subsequently be separated, e.g. by filtration, centrifugation or distillation of the liquid phases. Specific examples relate to the preparation of particles containing diphtheria or tetanus toxoid, human gamma globulin, urease and riboflavin-5<SP>1</SP>-sodium phosphate.
Patent GB-1320448-A (GB)
Title: Circuit breaker with an actuating mechanism
IPC: H01H71/54
Filed: 1971-12-07
Abstract: 1320448 Automatic circuit-breakers HEINEMANN ELECTRIC CO 7 Dec 1971 [19 Jan 1971] 56817/71 Heading H1N A circuit-breaker has a linkage 51 which is collapsed by overload-responsive tripping means 50 to open the circuit-breaker contacts 42, 44, and an actuating mechanism 12 movable between "on" and "off" positions, this mechanism engaging the linkage during movement from the "off" to the "on" position, but being free to move from its "on" position to its "off" position without engaging the linkage so that the circuit-breaker can only be opened by the tripping means 50 and not by the mechanism 12. The circuit-breaker is similar to that of Specification 1,145,174 with the handle removed and replaced by a rocker assembly 12 comprising a mounting bracket 86 riveted to the circuitbreaker casing and a rocker 85 with an arm 110 having a recess 116 bounded by shoulders 112, 115. An operating rod 84 extending through a pivoted link 65 into the recess may be moved by the shoulder 112 to close the contacts, but not by the shoulder 115, so that the rocker cannot open the contacts.
Patent GB-1425627-A (GB)
Title: Method of fabrication of ceramic sources which emit radioactive  radiation
IPC: C01F11/00
Filed: 1973-12-10
Abstract: 1425627 Radio-active sources COMMISSARIAT A L'ENERGIE ATOMIQUE 10 Dec 1973 [22 Dec 1972] 57025/73 Heading G6R A ceramic radio-active source is made by contacting a shaped body of M<SP>1</SP> 3 (AO 4 ) 2  with a solution of MX 2  containing radio-active ions, drying, and heating; in the general formulae A is S, P, As, V, or Mn, M and M<SP>1</SP> are Ca, Sr, Ba, Mg, Cd, Ni, Pb, Zn, or Mn, with which may be included K, Na, La, or Ce, and X is fluorine, chlorine, bromine or hydroxyl, or X 2  is O or CO 3 . An apatite compound of the formula is formed at the surface of the shaped body. For example, pellets of calcium or strontium phosphate may be sintered, impregnated with a solution of radio-active strontium, barium, or calcium chloride, dried, and heated. Only a part of the surface of the pellets may be impregnated with the radio-active solution, and various methods of carrying this out are described. The source emits beta particles and may be used in a thickness gauge or in medical treatment.
Patent GB-1206938-A (GB)
Title: Improvements in hair curlers
Inventor: BEDACK NICHOL
IPC: A45D2/36
Filed: 1966-12-22
Abstract: 1,206,938. Hair curling appliances. N. BEDACK. 6 Dec., 1967 [22 Dec., 1966], No. 57563/66 Heading A4V. A hair curler comprises a hollow tubular body sealed at both ends, containing a wax melting between room temperature and the boiling point of water, and means for holding in place hair wound on the tubular body. The body is preferably cylindrical and made of plastics material; it may have ridges or a mesh pattern on its outer face. The hair may be held in place by a partcylindrical mesh cage fitting over the body or by needle-like projections on the surface of the body.
Patent GB-1335198-A (GB)
Title: Process for the preparation of stable poly-isocyanates  which contain biuret groups
IPC: C07C239/00
Filed: 1970-12-07
Abstract: 1335198 Polyurethanes BAYER AG 7 Dec 1970 [17 Dec 1969] 58002/70 Heading C3R [Also in Division C2] Polyurethane resins and polyurethane foam resins are prepared from stable liquid polyisocyanates containing biuret groups obtained by reacting aliphatic or aromatic polyisocyanates at temperatures of from 100‹ to 200‹ C. with diprimary aromatic diamines with their nucleophilic character attenuated by electrophilic substituents or by substituents which sterically hinder the amino groups to such an extent that the diamines may be intimately mixed with polyisocyanates at temperatures of above 100‹ C. without any substantial formation of sparingly soluble polyureas in such proportions that the NH 2 /NCO ratio is in the range of 1 : 2 to 1 : 100.
Patent GB-1160300-A (GB)
Title: Method of Separating Benzene from Mixtures Containing It Together With Paraffin and Naphthene Hydrocarbons
IPC: C10G21/00
Filed: 1966-12-28
Abstract: 1,160,300. Benzene; paraffins. SOC. ITALIANA RESINE S.p.A. 28 Dec., 1966 [31 Dec., 1965], No. 58011/66, Heading C5E. Benzene is recovered from a hydrocarbon mixture also containing paraffins and naphthenes by introducing the mixture to a multi-stage extractor at an elevated temperature together with a high-boiling selective organic solvent, drawing from the said extractor an aromaticrich liquid extract and a non-aromatic-rich liquid raffinate, azeotropically distilling said extract with acetone vapour to remove paraffin constituents, and removing benzene from the residue by steam distillation, the raffinate from the extractor and the azeotropic distillate (after removal of acetone) being distilled to obtain an upper fraction (mainly comprising light paraffins) which is recycled to the extractor. Suitable solvents are diethylene glycol, dipropylene glycol and sulpholane, preferably containing less than 1% water. The removal of acetone from the azeotropic distillate may be achieved by a water-extraction, the resulting acetoneaqueous layer being distilled to recover acetone, which is re-used and the aqueous residue being vaporized and reused in the steam distillation. Benzene is recovered from the steam distillate by decantation, and may be partly recycled. The solvent remains as residue in the steam distillation and is also re-used. In an example, nitration-grade benzene is recovered from a cut of a hydrogenated reforming petrol. Higher boiling paraffins are also recovered.
Patent GB-1386027-A (GB)
Title: Esters of thienobenzopyrans and thiopyranobenzopyrans
IPC: C07D333/38
Filed: 1972-12-20
Abstract: 1386027 Derivatives of thienochromene and dihydrothiapyranochromene L S HARRIS H G PARS J C SHEEHAN nd R K RAZDAN 20 Dec 1972 [27 Dec 1971] 58870/72 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein m, n are each 0-3 but m + n = 2 or 3; R 1  is C 1-6  alkyl; R 2  is alkyl or cycloalkyl-C 1-6 -alkyl; R 3  is -CO(CH 2 ) 1-8 -Z and Z is morpholino, thiamorpholino, piperazino, 4-C 1-6 -alkylpiperazino or N(CH 2 ) 3-9 . In examples, these compounds are prepared by reacting together the corresponding phenol (R 3 =H : II), HO 2 C(CH 2 ) 1-8 Z and dicyclohexylcarbodiimide. II are prepared by reacting an appropriate oxo-compound (R 1 R 1 C=O : C, R 3 =H) with R 1 MgBr, and ring- -closing the thus-formed 2-(dialkylmethyloldihydrothienyl) - 5 - R 2  - resorcinot (or its dihydrothiapyranyl analogue) with p-TSOH or HBr. Starting materials also prepared are 2- and 5- carbomethoxy - 3 - oxotetrahydrothiophene and 2-carbomethoxy-3-oxotetrahydrothiapyran. Therapeutic compositions for oral or intraperitoneal administration comprise compounds of the above formula, which have tranquilizing activity.
Patent GB-1208220-A (GB)
Title: Improvements in or relating to electrochemical generators
Inventor: DOLL J H
IPC: H01M6/38
Filed: 1968-12-12
Abstract: 1,208,220. Valves for inert cells and batteries. SOC. DES ACCUMULATEUR FIXES ET DE TRACTION. 12 Dec., 1968 [13 Dec., 1967; 6 Sept., 1968], No. 59253/68. Heading H1B. A self-sealing vent valve for an inert cell comprises a chamber having two apertures, the path between the apertures being closed by a porous material which becomes non-porous on contact with electrolyte. Fig. 1 shows a battery of inert cells 11-15 activated by aq. KOH 22 supplied from a common conduit 21. The cells 11-15 are closed by cover 23 containing chemical valves 24-28. Each valve contains a porous material 29 which swells and gels on contact with electrolyte 22 thus closing the valve and ensuring that each cell is activated by the correct amount of electrolyte. Material 29 may be flour, starch and magnesium or aluminium salts or oxides. When material 29 is an aluminium compound it dissolves in the electrolyte after gelling and allows the venting of gases from the cells. The valves may be formed as separate members which can be screwed into the cell lid (Fig. 2, not shown) and the gellable material can be contained in an inert porous matrix such as felt.
Patent GB-1417150-A (GB)
Title: Induction coil for a conduction pump
IPC: H02K44/04
Filed: 1972-12-21
Abstract: 1417150 Pumps operating by electromagnetic interaction with fluids GROUPEMENT POUR LES ACTIVITES ATOMIQUES ET AVANCEES 21 Dec 1972 [22 Dec 1971] 59255/72 Heading H2A In a conduction pump for corrosive liquid metals comprising an electrically conductive coil in which is induced the current to be passed through the liquid metal, at least the electrodes of the coil are made of porous, inert, electrically conductive refractory material heat treated after formation of the electrodes, the pores of the electrodes being filled with metal. The electrodes may be interconnected by a pipe filled with the liquid metal to be conveyed. Alternatively, the electrodes and pipe may be a unitary structures formed of the inert refractory material.
Patent GB-1380300-A (GB)
Title: Supporting bracket
IPC: E04G5/04
Filed: 1972-12-28
Abstract: 1380300 Clamping mechanisms NIPPON KOKAN KK 28 Dec 1972 [29 Dec 1971 24 Aug 1972] 59929/72 Heading E2B A clamping mechanism whereby a working platform is supported on a wall of a structure comprises a body 1, a part 2 of which engages a face of a rib of a fixture attached to the structure, a wedge 14 slidably mounted in the body 1 for engagement, in use, with a face of the rib opposed to the face with which the part 2 co-operates, and a screw threaded member 6 for urging the wedge 14 into its clamping position. A cross-arm 3 is connected as by pivoting, to the body 1 and is arranged to carry a further arm on which planks are placed to form the working platform. The angle of the cross-arm relative to the body is adjustable by means of a further screwthreaded member 8 which, when the mechanism is in use, is under tension. The pivotal point of the cross arm may be changed such that in use of the mechanism the screw-threaded member is under compression (Fig. 5, not shown). Angular adjustment, in a further embodiment, may be effected by a worm gear (Fig. 6, not shown). The wedge 14 is guided in the body 1 by means of screw 16, which passes through a slot in the body 1.
Patent GB-1399266-A (GB)
Title: Counting circuit
IPC: G01B7/32
Filed: 1972-06-23
Abstract: 1399266 Measuring area RANK XEROX Ltd 23 June 1972 59954/73 Divided out of 1399265 Heading G4D The area of sheets fed past a sensing device is measured by a circuit which supplies pulses at a frequency proportional to sheet width for a time proportional to sheet length. As described the sheet is fed at 8 inches per second (1 foot in 1¢, seconds) and may be 1 foot, 1¢ feet or 2 feet wide. The width is sensed by microswitches MS34, MS35, MS50 and MS51 which enable one of gates G16 (1 foot), G15 (1¢ feet) or G14 (2 feet). Sheet length pulses are derived from mains frequency which is doubled (K8) and divided by 5 twice (K10, K11). The resulting 4 pulses per second is then divided by one of 3 (K13), 4 (K12) or 6 (K13 + K14) depending on which gate G14-G16 is enabled and fed to the counter. The counter then reads the area in square feet.
Patent GB-1374296-A (GB)
Title: Support rings for reversing blowout discs
IPC: F16K17/16
Filed: 1971-12-23
Abstract: 1374296 Bursting discs INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 23 Dec 1971 [23 Dec 1970] 60088/71 Heading F1D A mounting ring 3 for a bursting disc 1 has a second moment of area which is at least 80% of that of the attachment flange 4 of the apparatus which the disc 1 protects. The ring 3 is held between flange 4 and the flange 6 of a pipeline by bolts 7. The disc is welded at 2 preferably by an electronic beam weld. An apertured plate 9 protects the disc 1 from corrosive fluid, by reducing the scouring effect on the disc.
Patent GB-1247546-A (GB)
Title: Microwave antennas
Inventor: LUDGATE ARTHUR WILLIAM DOUGLAS
IPC: H01Q13/20
Filed: 1968-12-19
Abstract: 1,247,546. Aerials. DECCA Ltd. 9 Dec., 1969 [19 Dec., 1968], No. 60469/68. Heading H4A. An aerial comprises a triplate transmission line consisting of two outer planar conductors and an inner conductor 13, Fig. 1. The region between the outer conductors contains a suitable dielectric material, and the uppermost of said outer conductors includes a plurality of regularly spaced transverse radiating slots 15. The relative disposition between the conductor 13 and a slot varies along the length of the line, that is, the distance between said conductor and a plane normal to the slots, and passing through their centres, varies monotonically from a maximum to a minimum along the line. The coupling between the line and the slots can thus be arranged to achieve a selected distribution along the line of the power radiated by each slot, for example, so that side lobes are minimized. The outer plates are joined by rivets 16 which provide rigidity and prevent unwanted modes propagating along the line. Other forms of planar transmission line than the triplate type may be used, or a coaxial line.
Patent GB-1242959-A (GB)
Title: Elongate element to be driven into the ground together with a shoe
IPC: E02D5/32
Filed: 1969-12-15
Abstract: 1,242,959. Piles; jetting apparatus. TOT AANNEMING VAN WERKEN N.V. 15 Dec., 1969 [20 Dec., 1968; 15 July, 1969], No. 60980/69. Headings E1F and E1H. A mould tube 1 for a concrete pile that is to be cast in situ is furnished with a looselyfitting shoe 2 and a plurality of pipes 3 extending longitudinally thereof and fixed to its outer surface, each pipe having a nozzle 6 with an oblique outlet-channel 7. While the tube is being driven by vibration a pressurized fluid e.g. water, is fed through the pipes to loosen earth beneath the shoe. When necessary e.g. while the shoe is in soft ground or during the initial driving stage, the supply of fluid is cut off, particles of earth being prevented from entering each pipe by either a non-return valve 8 or a porous sleeve, Fig. 3 (not shown). The tube 1 is subsequently removed. The invention is said to be applicable to a prefabricated pile.
Patent GB-1291705-A (GB)
Title: Improvements relating to holding devices for underwater instruments
Inventor: LEE-KEMP KENNETH WILLIAM
IPC: B63B3/13
Filed: 1968-12-27
Abstract: 1291705 Ship underwater fittings EMI Ltd 29 Dec 1969 [27 Dec 1968] 61526/68 Heading B7M A device to be used underwater to hold an instrument 13 carried on a stem 14 comprises a body 6 housed in a cup-shaped member 7 and angularly movable about the axis of symmetry of the cup-shaped member. The body 6 is formed with an off-set bore 12 through which the stem and instrument can be passed. The outer end 8 of the cup-shaped member 7 is formed with an aperture 16 with which bore 12 can be aligned and from which the bore can be displaced to open and close the bore by angular movement of body 6. In the embodiment shown, the device is fitted to the hull 1 of a boat and is turned by radial arm 18.
Patent GB-1334392-A (GB)
Title: System for computing a stopping pattern for a vehicle
IPC: B61L3/02
Filed: 1970-12-29
Abstract: 1334392 Stopping control system GENERAL SIGNAL CORP 29 Dec 1970 [24 Dec 1969] 61668/70 Heading B7N [Also in Division G4] A vehicle speed control signal proportional to the square root of the distance x of the vehicle 10 from a stopping point is produced by presetting a counter 14 to the square root of the known distance x of a marker 13 from the stopping point when the vehicle 10 passes the marker, transferring twice this value minus one to a counter 16, decrementing counter 16 by pulses from a generator 17 representing increments of distance x travelled, and decrementing counter 14 when counter 16 reaches zero, the process then being repeated until counter 14, which is connected to an A/D converter produing the control signal, reaches zero. Switches 37, 38 are used to introduce a constant factor into the control signal, and counter 23 and gates 24 are used to compensate for wheel wear.
Patent GB-1272688-A (GB)
Title: Sulphamido-steroids and the preparation thereof
Inventor: MARSAN GERARD
IPC: A61K31/573
Filed: 1969-12-31
Abstract: 1,272,688. Corticosteroid 21-esters. G. MARSAN, [trading as LABORATOIRE DE RECHERCHES CHIMIQUESET INDUSTRIELLES MARSAN]. 31 Dec., 1969 [31 Dec., 1968; 31 March, 1969], No. 63569/69. Heading C2U. The invention comprises compounds of formula wherein X is H or halo; n and n<SP>1</SP> are each 1, 2 or 3; Z is C 1-3  alkyl or C 2-3  alkenyl; and R is a steroid radical of formula wherein A is H, OH or oxo; B is H, OH, C 1-5  alkyl or C 2-5  alkenyl; X<SP>1</SP> is H or halo; and Y is H, halo or C 1-5  alkyl; and their preparation from the corresponding free 21-hydroxysteroids by reaction with the appropriate acid halide. The inventive compounds are said to possess antiinflammatory activity, and may be made up with carriers into pharmaceutical compositions for oral, parenteral, rectal and topical administration.
Patent GB-708425-A (GB)
Abstract: 708,425. Kinematograph apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 26, 1951 [Dec. 8, 1950], No. 30049/50. Class 97(1) Intermittent feed mechanism comprises a claw carried by an arm mounted for pivotal and axial movement, a rotatable cam co-operating with said arm and having portions which first move the arm to store energy, for example in a spring, and then allow the stored energy first to move the arm to engage the claw in the film and feed the film. As shown, the cam 13 works in a slot 15 leading into a recess 16 in the arm 1 of rectangular section guided in a rotatable member 6. The arm carries the claw 2 and is pulled downwardly and rearwardly by the spring 8. When the peak of the cam passes the end of the recess 16 the spring 8 pulls the end down the inclined parts 18 and 19 of the cam to produce the engagement and feed movements of the claw. The spring then retracts the claw to a position determined by an adjustable stop 12. A catch 20 may be engaged with a notch 21 to hold the arm with the claw disengaged so that the cam can be rotated without feeding the.film. The form shown in Fig. 5 operates similarly except that the energy is stored in a compression spring 8 and a separate spring 22 retracts the claw. The position of the arm during the return stroke is determined by an eccentric stop 23 adjustable to prevent the claw engaging the film when the mechanism is starting. The cam 13 may be rotated non-uniformly with a slower part of its movement while the surface 18 is operative.