baber/WOPTO huggingface dataset:
Patent GB-1450420-A (GB)
Title: Binders and methods of making them
IPC: C08G75/14
Filed: 1973-10-12
Abstract: 1450420 Bitumen products EXXON RESEARCH & ENG CO 12 Oct 1973 [23 Oct 1972] 47733/73 Heading C5E Bitumen binding and coating agents are produced by contacting, at 180 to 330 C., a hydrocarbon material in the liquid phase with a gas containing sulphur dioxide, the hydrocarbon material being selected from aromatic extracts obtained by solvent extraction of lubricating oil feedstocks, straight run asphalt, vacuum bottom asphalt, heavy side streams from vacuum distillation columns and pipe stills, catalytic cracker cycle oils, vacuum pipe still residues, precipitated asphalts from mixtures of asphalts with other hydrocarbons, deasphalted aromatic hydrocarbons, and blends and mixtures thereof. The hydrocarbon material may have an average molecular weight of 300 to 10,000, and may be an aromatic extract having a viscosity of 30 to 300 SSU at 210 F., an initial boiling point of 350 to 570 F. and an aromatic content of at least 55%; a precipitated asphalt having a penetration (ASTM D5-D25) of 1 to 35 dmm. and a softening point or temperature (ASTM D36-Ring and Ball) of 50 to 85 C.; a mixture of aromatic extract and precipitated asphalt; or an asphalt having a penetration of 65 to 200 dmm. and a softening point or temperature of 35 to 55 C. The SO 2 - containing gas is blown through the liquid phase hydrocarbon material with 0À5 to 10À0 litres of SO 2  per hour being employed per kilogram of liquid hydrocarbon material. The SO 2  may constitute from 5 to 100% of the gas which may be derived from the oxidation of H 2 S-containing gas and may contain free oxygen. Contact between the SO 2 -containing gas and the hydrocarbon material is continued until the sulphur content of the hydrocarbon material is increased by up to 12% by wt. The hydrocarbon material may contain a catalyst to promote reaction with SO 2 , which is selected from organic salts of transition metals, inorganic salts of Fe, Mn, Cr, Bi and Ni in their high valence states, and mixtures thereof, the metal(s) of the metal salt(s) constituting no more than 1% by wt. of the hydrocarbon material. The catalyst may be irradiated with U.V. radiation of wavelength 210 to 400 milli microns, at least before admixture with the hydrocarbon material. The bitumen product may have a penetration of at least 7 dmm., a softening point or temperature of at least 25 C., and a ductility (IP test 32) not exceeding 250.
Patent GB-1529197-A (GB)
Title: Thermo-optic liquid-crystal device for real-time display of animated images
IPC: H04N5/74
Filed: 1975-11-20
Abstract: 1529197 Controlling light THOMSON CSF 20 Nov 1975 [21 Nov 1974] 47876/75 Heading G2F [Also in Division G5] Selected points of a layer of molecularly aligned optically transparent (nematic) mesophase having a direct transition to the transparent isotopic liquid phase are temporarily heated so as to undergo such a transition and are thereafter allowed to cool to the aligned mesophase during which process optically scattering cybotactic groups appear momentarily. Silane coatings on electrodes either side of the layer determine the nematic alignment and recovery thereof after cooling is expedited by applying an A.C. voltage (a few KHz) to the electrode. Selective heating may be via a scanning modulated optical beam absorbed by the mesophase layer (impurities may be incorporated for this purpose) or by the electrode (indium and/or tin oxide); alternatively one electrode may comprise mutually insulated X and Y conductor strips connected at each intersection by resistive heating elements, for row by row addressing of points. By connecting voltage across the ends of the same electrode non-selective heating of the layer to maintain the mesophase may be accomplished. Reproduction of television pictures is referred to.
Patent GB-1211073-A (GB)
Title: Improvements in web feeding devices
IPC: B65H20/16
Filed: 1966-10-26
Abstract: 1,211,073. Film-stretching and forwarding apparatus. MOLINS MACHINE CO. Ltd., and W. A. ROFFEY. 25 Oct., 1967 [26 Oct., 1966], No. 48001/66. Heading B5B. [Also in Divisions B8 and D1] Web-feeding apparatus, more particularly for feeding thin films of thermoplastic material to forming tools operating on central parts of the web, comprises a pair of continuously driven endless bands or chains 10 one at each side of the web and each having a straight run adjacent to a web edge, the chains carrying U-shaped clips 16 which are opened by a deflector member 23 before they enter the straight run and which are allowed to close to grip the web as they enter the run. The ends of the legs 19 of the U-clip are bent inwardly and outwardly to form V-jaws 20, and one of the legs 19 has an extension 17 by means of which the clip is fastened to the chain 10. The working runs of the chains 10 may be parallel to the direction of travel of the web or may diverge slightly to stretch the web transversely. Also, the chains may be driven at the speed at which the web is supplied thereto or at a faster speed if it is desired to stretch the web in its lengthwise direction.
Patent GB-1005257-A (GB)
Title: An arrangement for use in the setting up of a railway route through a track installation
IPC: B61L19/06
Filed: 1962-12-19
Abstract: 1,005,257. Route setting system. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 19, 1962 [Dec. 19, 1961], No. 48025/62. Heading B7H. A route-setting system for a track layout comprises manually-operated order units at points A, C, H, F and G defining the ends of routes through the layout, intermediate automatic or manually-operated order units at points B, D and E, a memory unit for storing information relating to each route through the layout and an operational unit incorporating a pulse amplifier and magnetic ring core positioned between adjacent order units. On manually-operating order units A and F (pushbuttons K A  and K F  depressed) to set up a route between A and F, the part of the memory unit (not shown) associated with the selected route provides a current to coil 8 to open contact 81 at order unit B. Negative going pulses applied at terminal S A  alternately switch transistors T1 and T2 which alternately energize windings 1 and 2 on the ring core of operation unit K AB  and assuming inhibit windings 4 and 5 are de-energized (switches K A  and 81 open) and track switch B is free so that track switch control unit V B  does not apply an inhibit current to winding 6, an output pulse train is obtained from receive winding 3 and applied to terminal S B  at the input of operation unit K BF - Since both inhibit windings 14 and 15 are not energized (switches 81 and K F  open) the pulse train is passed by unit K BF  to terminal S F . The passage of the pulse train between points A and F energizes further route-setting means (not shown) which supply a current to terminal I B  of track switch control unit V B  which in conjunction with the output of winding 7 of operation unit K AB , also supplied to the unit V B , operates track switch B to its required position. After the switch is set, control unit V B  supplies a current to winding 6 of unit K AB  and winding 46 of unit K CB  to prevent any further route being set up via these units.
Patent GB-1202529-A (GB)
Title: Control systems for crawler mounted civil engineering machines
Inventor: FINCH STANLEY GEORGE
IPC: E02F9/20
Filed: 1966-10-27
Abstract: 1,202,529. Controlling endless-track vehicles. PRIESTMAN BROS. Ltd. 12 Oct., 1967 [27 Oct., 1966], No. 48278/66. Heading B7H. [Also in Divisions E1-E2] The subject-matter of this Specification is identical with that described in Specification 1,202,530, but the claims are concerned with a control system for a crane or excavator mounted on endless-tracks wherein a single control lever effects control of the drive to the tracks according to the position of a travel selector control having a first position in which a brake is applied to one track and the other is driven forwardly or in reverse upon displacement of the lever in opposite directions, a second position in which a brake is applied to the other track and the one track is driven upon displacement of the lever, and a third position in which neither brake is applied and both tracks are driven upon displacement of the lever.
Patent GB-1254408-A (GB)
Title: A sliding gate nozzle for vessels used for pouring metals
IPC: B22D41/28
Filed: 1970-10-13
Abstract: 1,254,408. Slide valves for metallurgical ladles. INTERSTOP A.G. 13 Oct., 1970 [13 Oct., 1969], No. 48616/70. Heading F4B. A slide valve for a bottom pouring ladle comprises an entry bush 4, a stationary base-plate 14, a slide valve plate 10 and a teeming spout 11 in which the parts are made of a high alumina refractory, the orifices 13 and 15 in the valve plate and base-plate are offset from the centre, the sealing surfaces in the closed valves are the longer surfaces 17 and 18 of the plates 10 and 14 are formed with bosses engaging corresponding recesses in the spout 11 and the bush 4. The two plates and the spout and bush are interchangeable and both the latter may have inner liners of corundum (Fig. 3) which is of lower thermal conductivity than the alumina refractory. The valve includes a conventional metal frame 5 and a cover 6 carrying a slideway 7 for the frame 8 actuated by a rod 9.
Patent GB-1278183-A (GB)
Title: Safety closure for a wall entrance in a prestressed concrete pressure container, particularly for a nuclear reactor
IPC: G21C9/00
Filed: 1970-10-14
Abstract: 1278183 Reactors FRIED KRUPP GmbH 14 Oct 1970 [15 Oct 1969] 48888/70 Heading G6C In a nuclear reactor prestressed concrete pressure vessel, 1, the pipeline, 3, is closed by the safety shut-off valves 8 located within a compartment within the vessel wall. The fracture of a pipeline behind the valves 8 is sealed by closure of the valves. The valves are enclosed within a container formed of the steel cylinder 4, plate 5 and the hood 6. Shielding material, 9, occupies the space inside 4. In a modification, a further chamber is flange mounted on 4 and contains a further valve 8 in pipeline 3.
Patent GB-1186810-A (GB)
Title: Gas-Permeable Laminate and method of forming the same
IPC: A61F13/15
Filed: 1968-10-16
Abstract: 1,186,810. Surgical drapes. AMERICAN HOSPITAL SUPPLY CORP. 16 Oct., 1968 -[27 Dec., 1967], No. 48996/68. Heading A5R. [Also in Division B5] A gas permeable laminate suitable for use in the manufacture of surgical garments and drapes is made by placing an imperforate polyalkylene film between a pair of flexible, porous sheets formed of materials which are dimensionally stable at the melting point of the film, at least one of said sheets having openings extending therethrough of average size greater than 0.003 inches, and then heating said film to above its melting point until the film melts and disintegrates and bonds the sheets. In one embodiment, a sheet of porous paper 10 having a creping factor of at least 20% and weighing 10.30 1bs/3000 sq. ft., a polyethylene film 12, 0.0001-0.01 inches thick and a scrim 13 having openings of average size greater than 0.003 inches are passed between rollers and shoes heated to 250-400F. A second film 13 and paper sheet 15 may be incorporated. A polyether or polyester urethane foam may be used in place of the scrim. The polyalkylene film may be surface treated by flame or corona discharge and is molecularly oriented by extrusion and the paper coated with water repellent prior to lamination.
Patent GB-1060118-A (GB)
Title: Polymers
IPC: C08F255/10
Filed: 1964-12-02
Abstract: High impact strength graft polymers are made by the bulk polymerization of vinyl chloride containing dissolved chlorinated butyl rubber. Polymerization is effected by means of catalysts such as isopropyl peroxydicarbonate and azodiisobutyronitrile.
Patent GB-1312537-A (GB)
Title: Friction plate clutch having means to dampen plate flutter
IPC: F16D13/68
Filed: 1971-10-22
Abstract: 1312537 Friction clutches TWIN DISC Inc 22 Oct 1971 [23 Oct 1970] 49157/71 Heading F2C In an hydraulically operated friction clutch having clutch plates 3, 8 respectively splined to a hub 2 and a drum 7, plate flutter is eliminated by providing split outer plates 8 and circumferentially spaced resilient separators s between the inner plates 3. Each separator s has a series of teeth 20 which engage between the plates 3 to separate the latter and interconnecting portions 21 which engage between adjacent teeth 3a of each plate 3. The separators s engage recesses 5 in the hub 2 formed by removing splines from the hub. When plate flutter occurs the separators s ensure that the plates 3 flutter in unison and the fluttering is damped by the split outer plates 8.
Patent GB-1170611-A (GB)
Title: Improvements in and relating to the Preparation of Auxiliary Layers for Photographic Materials Based on Synthetic Polymers
Inventor: BURCZYK LEONHARD
IPC: G03C1/81
Filed: 1966-11-04
Abstract: 1,170,611. Polymer compositions for use in photographic materials. FOTOCHEMISCHE WERK BERLIN VEB. 4 Nov., 1966, No. 49470/66. Heading C3P. [Also in Division G2] Homogeneous compositions for preparing auxiliary layers for photographic materials comprise, in an aqueous medium, a dispersed polymer or copolymer of an acrylic or methacrylic acid ester or of acrylonitrile, polyvinyl alcohol or a low molecular weight (i.e. liquid) vinyl-ethynyl-carbinol polymer and at least one additive selected from polyglycerol esters of dicarboxylic acids, mono-esters of saturated and/or unsaturated fatty acids with glycerol and polyglycerols, polyglycerol esters of saturated and/or unsaturated fatty acids, bis-(hydroxyphenyl)-alkane derivatives and alkylphenyl polyglycerol ethers. In examples the dispersed polymer is an ethyl acrylate-acrylonitrile copolymer, an ethyl acrylate-vinyl acetate copolymer or polymethyl methacrylate. The compositions may also contain pentachlorophenol (fungicide), trimethyl octadecyl ammonium methosulphate (antistatic agent), and hydroxyethylcellulose or hydroxyethylated cellulose ether.
Patent GB-1307208-A (GB)
Title: Unidirectional solidification of castings
IPC: C30B11/00
Filed: 1971-10-26
Abstract: 1307208 Electric furnaces TRW Inc 26 Oct 1971 [26 March 1971] 49672/71 Heading F4B [Also in Division B3] An annular furnace for use in the directional solidification of castings includes an outer graphite heating cylinder 11 heated by an induction coil 12 and an inner graphite heating cylinder 13 heated by a resistance element 14. Beneath the heating cylinders are provided annular heat sinks 16, 17 cooled by air or water. A refractory heat-insulating baffle 20 is provided between the heating cylinders and heat sinks. Moulds 25 are removed from the furnace by lowering on a chill plate 27.
Patent GB-1064461-A (GB)
Title: Improvements in and relating to javel extracts and methods of manufacturing the same
IPC: C01B11/06
Filed: 1963-12-19
Abstract: A commercial javel extract (a sodium hypochlorite solution of between 30 and 70 chlorometric degrees containing sodium chloride) has a molar ratio NaOCl/NaCl of between 1 and 6 and a density of between 1.07 and 1.22, and may be prepared by separating the precipitated sodium chloride from a concentrated javel extract (a sodium hypochlorite solution of between 70 and 140 chlorometric degrees) and appropriately diluting the solution obtained. The concentrated javel extract is prepared by reacting gaseous chlorine with sodium hydroxide in a suspension in sodium hypochlorite solution of sodium chloride crystals such that the sodium chloride precipitated by the reaction increases the size of said crystals.  The sodium chloride crystals are preferably maintained in the form of a fluidized bed in the reactants, the bed being situated in a vertical reaction and crystallization vessel to the lower portion of which chlorine and sodium hydroxide are continuously introduced, part of the product being removed from the upper part of the vessel, cooled and recycled to the base of the vessel so as to maintain the fluidized bed.  The enlarged NaCl crystals are removed from the lower portion of the vessel.  A chlorometric degree is defined as one kilogram of a product which titrates one chlorometric degree and has the same bleaching or oxidizing effect as one litre or 3.2 gms. of gaseous Cl2.
Patent GB-1049690-A (GB)
Title: Method for the manufacture of core spun yarns
IPC: D02G3/32
Filed: 1964-12-11
Abstract: In the manufacture of a core spun yarn having a core of an elastomeric yarn and a covering of non-elastomeric fibres, the core yarn is fed untensioned into the beginning, or intermediate part, of the drafting zone of the spinning frame to be drawn together with the sliver.  The spinning frame may be of the Casablanca or Saco Lowell type, Figs. 1 and 2 (not shown), or the Casablanca type frame may be modified by the inclusion of an additional pair of rollers between the front rollers and the ring spindle, the core yarn being fed into the nip of the front rollers.  The traverse sliver guide and the core yarn roller guide may be reciprocated in synchronism.  The core yarn may be of segmented polyurethane, or natural or synthetic rubber, and may be a continuous filament or staple fibre yarn.  The non-elastomeric fibres may be cotton, wool, regenerated cellulose, acrylic, polyester, or polyamide fibres.
Patent GB-1193538-A (GB)
Title: Mixing Apparatus.
IPC: B22C5/04
Filed: 1968-10-25
Abstract: 1,193,538. Foundry sand mixing apparatus. SOUTHINGTON MFG. Inc. 25 Oct., 1968 [16 Nov., 1967], No. 50748/68. Heading B1C. Foundry sand mixing apparatus comprises a trough 64 provided with a rotatable stirrer having blades into which sand, acid, and binder are fed in metered amounts, the mix being dischargeable through spout 74. The trough is mounted so that it may be raised or lowered, tilted, and/or pivoted about a vertical axis. The supply 'of sand may be controlled by gate valve and the acid and binder may be fed by gravity through valves 54, 128 from tanks supported on a platform 22 above the trough, the acid being introduced through pipe 30 followed by addition of the binder through pipe 32. Specification 1, 193, 539 is referred to. (For Figure see next column)
Patent GB-1455441-A (GB)
Title: Printing machine
IPC: B41F13/00
Filed: 1973-11-01
Abstract: 1455441 Adjusting cylinder drive INTERNATIONAL MACHINE PRODUCTS Inc 1 Nov 1973 [2 Nov 1972] 50838/73 Heading B6C The impression cylinder 21 of a printing machine is driven from a common drive with the plate cylinder through a control unit 32. The drive to the cylinder 21 is through a spur wheel 36 which is loosely mounted on the cylinder shaft 30 and secured to the control unit casing 35, 46. The casing also carries an air motor 45, the output shaft 75 of which is connected through pairs of worm and spur wheels to the shaft 33. Thus, with the air motor deenergized the cylinder 21 is driven from the common drive; energization of the motor in the appropriate direction causes the cylinder to be advanced or retarded with respect to the plate cylinder.
Patent GB-1453855-A (GB)
Title: Phosphorus compounds containing amide groups and their use as flameproofing agents
IPC: D06M13/02
Filed: 1973-11-01
Abstract: 1453855 Amide-containing polyphosphates HOECHST AG 1 Nov 1973 [2 Nov 1972] 50878/73 Heading C2P [Also in Division D1] The invention comprises compounds VI and their N-methylol derivatives, prepared from compounds I by reaction with compounds II (to condense out at least one mol. of Q 2 OH) then with acrylamide or methacrylamide, then optionally formaldehyde where R 1 -R 5  are each haloalkyl or monohydroxyalkyl, at least one of them being haloalkyl and at least two being monohydroxyalkyl; Z 1  and Z 2  are each where one of X 1  and X 2  is H and the other is H, C 1-4  alkyl or C 1-4  haloalkyl, and m is 1-10; n is 1-4 (and, when n is greater than 1, the R 3 's and Z 2 's are the same or different); y is 0 or 1; Q 1  and Q 2  are each optionally substituted C 1-4  hydrocarbyl; q is the number of mols of II combined with one mol. of I; and T is H or Me. The inventive compounds are used for flameproofing textiles (see Division D1).
Patent GB-1478429-A (GB)
Title: Process for effecting mass transfer between liquids and gases
IPC: B01D53/77
Filed: 1975-12-17
Abstract: 1478429 Evaporator; absorber METALLGESELLSCHAFT AG and BAYER AG 17 Dec 1975 [8 March 1975] 51722/75 Headings B1B and B1L A process for effecting mass transfer between a gas and a liquid, e.g. absorbtion or evaporation comprises injecting the liquid (9) into the upper portion of a vertical Venturi tube absorber (2) to flow concurrently with the gas (1), collecting a large part of the injected liquid in a sump (2a) below the outlet end of the vertical Venturi tube absorber, feeding the gas together with the residual liquid below the outlet end of the vertical Venturi tube absorber and above the sump into a substantially horizontal Venturi tube absorber (5), feeding the mixture of gas and liquid from the horizontal Venturi tube absorber into a settling chamber (7), which contains a mechanical separating zone (6) for a removal of fine droplets in the upper portion of the settling chamber before a gas outlet (8), collecting the liquid in a sump (7a) at the bottom of the settling chamber, and injecting liquid into the outlet end of the vertical and/or horizontal Venturi tube absorber to flow in countercurrent to the gas. Further liquid may also be injected into Venturi 5 co-currently. The absorbtion of sulphur trioxide in sulphuric acid and the concentration of sulphuric acid by evaporation are referred to.
Patent GB-1440175-A (GB)
Title: Recirculating ball nuts
IPC: F16H25/22
Filed: 1974-11-29
Abstract: 1440175 Screw-and-nut gearing R WILKE and H KORTHAUS 29 Nov1974 [30 Nov 1973] 51758/74 Addition to 1361560 Heading F2Q In a recirculating ball nut, a ball crossover insert 2 is located in an axial groove 1a and comprises a ball guiding channel of rectangular cross-section which extends between adjacent turns of the screw thread, a recess being provided in each of the two threads which forms a discontinuity in the thread adajcent each end of the channel, the arrangement being such that at the ends of the channel the balls 14 are supported at the point 8 on the side wall 4a of the channel, the point 11 in the bottom of the channel and a point 10 on a ball supporting line 7 in the thread wall 3.
Patent GB-1118802-A (GB)
Title: Flow measuring devices
Inventor: O'HALLORAN OLIVER FINBAR BARRY
IPC: G01F3/26
Filed: 1964-12-22
Abstract: 1,118,802. Selective signalling. ENGLISH ELECTRIC CO. Ltd. 21 Dec., 1965 [22 Dec., 1964], No. 52059/64. Heading G4H. A mass flow measuring device comprises a pair of buckets tiltable about a common horizontal axis such that as one bucket is being filled with the liquid or granular material being measured, the other bucket is being emptied, and a transducer for producing a pulse each time the buckets tilt. The transducer may be a magnet which co-operates with a reed switch, or it may be a photo-electric device.
Patent GB-1126387-A (GB)
Title: Improvements in or relating to isolating switches equipped with cartridge fuses
IPC: H01H31/12
Filed: 1965-12-08
Abstract: 1,126,387. Mechanical switches. LA. TELEMECANIQUE ELECTRIQUE. 8 Dec., 1965 [28 Dec., 1964], No. 52067/65. Heading H1N. One or more cartridge fuses (40) are mounted on a member A carried by slides 14 which are connected by a pin 16 and slotted lever 17 to a spindle 11 so that fuse contacts (39) may be engaged and disengaged from fixed clip contacts (6). The spindle 11 also carries auxiliary bridging contacts (24) on arms 23 and is controlled by a dead-centre compression spring 10. The member A is mounted by pins 29, 30 and slots 31a, 31b on slides 14 so that it may be swung into the dotted position for access to the fuse(s).