baber/WOPTO huggingface dataset:
Patent GB-510451-A (GB)
Title: Improvements in the pyrolysis of secondary-butylbenzene compounds
IPC: C07C4/12
Filed: 1938-02-01
Abstract: 510,451. Vinyl- and allyl-aromatic compounds. TENNANT, W. J. (Dow Chemical Co.). Feb. 1, 1938, No. 3163. [Class 2 (iii)] Secondary butyl benzene or a halogen or alkyl nuclear substitution derivative thereof is pyrolyzed to form the corresponding allylaromatic compound, alone or together with a vinyl-aromatic compound, and the former is separated. Temperature is usually 450-950‹C. The time of heating is generally not more than 2 secs. at 450‹C., 0.1 sec. at 750‹C., and 0.03 sec. at 900‹C. 'The product is rapidly cooled and the condensate distilled to separate vinyl- and allyl-type products. The yield of styrene increases and that of allyl-benzene decreases as the pyrolysis temperature of secondary butyl benzene is raised. Activated charcoal catalyzes the formation of styrene. The initial compounds may be heated alone or with diluents such as steam or carbon dioxide, but the pyrolysis is preferably effected by mixing the compound with superheated steam as described in Specification 510,450, usually with 7-10 times its weight of steam at 600-1000‹C. In examples, mixtuies of secondary butyl benzene with superheated steam are maintained (1) at 550‹C. for 0.5 sec. yielding allyl-benzene ; (2) at 725‹C. for 0.05 sec. giving allyl-benzene and a little styrene which are separated by fractional distillation ; (3) at 730‹C. in contact with active charcoal for 0.08 sec. yielding styrene and allyl-benzene, the latter being separated by distillation. Similarly, o- and m-chlor-secondary butyl benzenes at 550‹C. are converted to chlor-allyl benzenes, and ethyl-secondary-butyl benzenes at 780‹C. to ethyl-allyl-benzenes and ethyl-vinyl-benzenes. Other secondary butyl compounds specified are the 3.5 dichlor-, 3 brom- and 3 chlor-5 methyl-derivatives which may be converted into the corresponding substituted allyl benzenes. Specification 486,573 also is referred to.
Patent GB-1024768-A (GB)
Title: Method and apparatus for the storage of fuel for fuel cells
IPC: H01M8/06
Filed: 1963-01-25
Abstract: 1,024,768. Gas storage apparatus. VARTA A.G., and SIEMENS-SCHUCKERTWERKE A.G. Jan. 25, 1963 [Jan. 27, 1962], No. 3302/63. Heading F4P. [Also in Division H1] A hydrogen gas storage tank 7 (Fig. 1, not shown) charged with solid adsorbant, e.g. charcoal or silica gel, is filled by feeding the hydrogen through a duct 4 cooled by a heat exchanger 5 located in the vapour space of a metal tank 2 which is thermally insulated by a vacuum space 9 from the tank 7 and contains liquefied gas, e.g. liquid oxygen or air admitted through a duct 1 of the exchanger 5; the so-cooled feed hydrogen serving to cool the adsorbent to a temperature at which it more readily retains the hydrogen. Desorption of hydrogen and discharge through an outlet 12 leading to a fuel cell (not shown) is effected by passing direct current from the fuel cell through heating elements 11 and current passed through heater 10 serves to vaporize oxygen which is also fed to the cell through a duct 3. Alternatively heat may be supplied by circulating a liquid such as anhydrous alcohol or pentane in a closed cycle. The storage temperature of the hydrogen may be reduced by maintaining the liquid oxygen tank under vacuum and since hydrogen is absorbed more readily at lower temperatures the size of the apparatus may be reduced whilst retaining the storage capacity.
Patent GB-1437950-A (GB)
Title: Detergent compositions
IPC: C11D3/12
Filed: 1973-01-23
Abstract: 1437950 Cleaning compositions UNILEVER Ltd 20 Aug 1973 [22 Aug 1972 23 Jan 1973] 39122/72 and 3321/73 Heading C5D A detergent composition comprises (a) 5- 40% of a surface active detergent which does not form an insoluble calcium salt, (b) 10-75% of sodium carbonate or potassium carbonate and (c) 5-60% of finely divided calcium carbonate having a surface area of at least 10 sq. metres per gram. The calcium carbonate may be calcite or vaterite. The composition may also include an anionic detergent forming an insoluble calcium salt, a nonionic solubilizing agent, sodium silicate, a crystallization acid and sodium tripolyphosphate. Ingredients specified include: detergents: sodium linear alkyl benzene sulphonate, sodium secondary alkyl benzene sulphonate, sodium tallow alkyl sulphate, sodium fatty alkyl ether sulphate, sodium alpha-sulphonated tallow fatty acid, the sodium salt of sulphonated tallow fatty acid monomethyl ester, sodium alpha-olefin sulphonate sodium acetoxy hexadecane sulphonate, sodium hydroxy fatty alkyl N-methyl taurate, sodium tallow soap, sodium coconut soap, sodium fatty alkenyl succinate, hexadecyl dimethyl ammonio propane sulphonate, ethylene oxide adduct of coconut alkyl dimethyl bis - (hydroxyethyl)ammonium chloride, secondary fatty alcohol-ethylene oxide adduct, nonylphenol-ethylene oxide adduct, fatty alkyl sulphoxide ethylene oxide adduct, tallow alcohol ethylene oxide adduct, coconut ethanolamide, lauric isopropanolamide, lauric diethanolamide, dimethyl cocoalkylamine oxide, crystallization aids: sodium benzoate, phenol, sodium citrate, other ingredients: sodium perborate, sodium craboxymethyl cellulose optical brightener, perfume, sodium sulphate, sodium xylene sulphonate, sodium bicarbonate and water.
Patent GB-169932-A (GB)
Title: An instrument for conveying sound and speech to the deaf, other than through the outer ear cavity
IPC: A61F11/04
Filed: 1921-01-31
Abstract: 169,932. Belasco, A. L. J. Jan. 31, 1921. Hearing-appliances.- A device for enabling deaf persons to hear comprises a cylinder A for receiving the speech, made preferably of aluminium, fitted with a mica or parchment diaphragm B and connected by a rod or cord C for conducting the vibrations to a member D to be inserted preferably in the mouth of the deaf person, and held by a handle E, the cord C being stretched taut. Vibrations are thus set up in the teeth and transmitted to the hearing- organs of the deaf person. The member D may be held in any other desired contact with the head of the deaf person, excepting with the outer ear cavity.
Patent GB-1008513-A (GB)
Title: Improvements in or relating to heat exchangers, particularly for gas-fired water heaters and to methods of manufacturing such heat exchangers
IPC: F24H1/40
Filed: 1961-01-31
Abstract: 1,008,513. Temperature responsive actuating elements. H. C. L. WOLFENDEN. Jan. 30, 1962 [Jan. 31, 1961], No. 3713/61. Heading G1D. [Also in Division F4] A heat exchanger for thermostatically controlled boilers employing forced water circulation com prises transversely finned tubes 3 on one of which the temperature responsive element of a thermostat is mounted in a housing which is in contact with both the tube and the fins. The housing comprises a tube 5 which has a hardened nose 6 and is forced through the fins to lie along a tube 3. A phial 8 which is connected to a bellows (not shown) by a capillary 9 is then inserted into the tube together with a graphite packing. The tube 5 is located on the upstream side of tube 8 with respect to the flow of combustion gases over the heat exchanger. Specification 957,508 is referred to.
Patent GB-724289-A (GB)
Title: Improved conveyor device for use in coal mining
IPC: E21F13/06
Filed: 1953-02-10
Abstract: 724,289. Conveying from working-face in mines. CHRISTOPH, O. Feb. 10, 1953 [Feb. 11, 1952], No. 3729/53. Addition to 697,432., Class 78 (1). The belt 1 of the parent Specification is made equal in length to the shorter of the coal faces which it serves. The stripper 4, which discharges the coal on to the belt 7, is moved out of the way when the right-hand end of the belt leaves it to avoid damage by the rope 2. The movement may be effected manually by a lever or cable mechanism or by a compressed air cylinder 15. This cylinder may be actuated automatically by rollers 12 carried by levers and biased by weights 11 or springs. Normally these rollers bear against the underside of the belt, but when the belt moves clear of them, they swing upwards and actuate the valve controlling the cylinder. Alternatively the movement of the belt may allow light to fall on a selenium cell which actuates a signal. In another modification the stripper 4 has a bottom plate bent up at the ends which is engaged and raised by the fastenings connecting the cable to the belt.
Patent GB-1066422-A (GB)
Title: Improvements in or relating to conveyor belts
IPC: B65G15/42
Filed: 1966-01-27
Abstract: 1,066,422. Endless conveyers. G. PIEMONT. Jan. 27, 1966 [June 11, 1965], No. 3733/66. Heading B8A. Conveyer side walls 1 of rubber are formed with a series of V-shaped notches 3. Prior to securing (by cementing &c.) the edge of the wall to the belt T (Fig. 3, not shown) the wall is longitudinally compressed to close the notches. V-shaped notches 6 and 7 are formed in inner and outer faces of the outer edge of the wall. The notches 6 and 7 are also closed by the compression prior to securing the side wall, but lips 8 (Fig. 4, 5, not shown) are formed on the edges of the notches 7 to assist in expulsion of trapped material while the belt passes over a drive roller. In a modification (Figs. 6-9, not shown), the notches 6, 7 are replaced by corrugations formed in the outer edge of the wall. Each corrugation is of V-shape and is bounded by rib-shaped portions the spaces between which form the V-shaped notches 3.
Patent GB-698854-A (GB)
Title: Improvements in devices for providing and adjusting the connection between an electrostatic generator and an apparatus to be fed from said generator
IPC: H02N1/00
Filed: 1952-02-12
Abstract: 698,854. Electrostatic machines. MAGNASCA, Ltd., and HANSEN, F. Feb. 12, 1952 [Feb. 12, 1952], No. 3742/52. Class 35. [Also in Group XL (a)] Current supplied from the terminal 1 of an electrostatic generator to a load 2 is regulated by a spark-gap 8 whose spacing is adjustable by means of a lever 4. The movable electrode 3 comprises a metal sphere which may contain a current indicator 9 protected by a condenser 10.
Patent GB-1177784-A (GB)
Title: Improvements in and relating to Walls
Inventor: ENGSTROM ERIK
IPC: E04B2/80
Filed: 1967-01-26
Abstract: 1,177,784. Wall panels. SKOGSAGARNAS INDUSTRI A.B. 26 Jan., 1967, No. 3857/67. Heading B1W. A wall panel comprises facing sheets 1 of wood chip-board or fibre board, with vertically-extending channels 3 therethrough, defined by corrugated cardboard strips 2, some of which channels house load-bearing studs 4 which are connected to upper and lower loadbearing rails 6 and 5 (Fig. 1, not shown) fixed to the surrounding structure, the upper rail being spaced from the upper edges of the facing sheets, which are nailed to the studs half-way up the panels to serve as a restraint against buckling of the studs. The sheets 1 are nailed to the lower rail 5.
Patent GB-1385182-A (GB)
Title: High speed temperature control systems
IPC: B64D13/06
Filed: 1971-02-04
Abstract: 1385182 Ventilating aircraft HAWKER SIDDELEY DYNAMICS Ltd 4 Feb 1972 [4 Feb 1971] 3900/71 Heading F4V In an air conditioning and pressurization system for aircraft cabins air is bled from the turbine of a gas turbine engine and passed via heat exchangers to the cabin, the air also passing through a turbo-compressor cooling unit with a by-pass duct the valve 6 of which, controlled automatically in response to signals from temperature sensors in the air-delivery duct and cabin, is an electro-pneumatic (or fast electromechanical) valve and is also controlled by signals from a water detector or ice anticipator sensor I located in the recombined air flow in duct D. The air flows through a water extractor E, and the sensor I serves to provide early warning and prevent ice formation in the duct D. Hot air from the compressor region 1 of the gas turbine passes through shut-off valve 3 and pressure-reducing valve 4 to one or more heatexchangers using ram ambient air for cooling. The air, now at about 150‹ C. is split between the cold air unit and the by-pass through valve 6. In the cold air unit the air is compressed in compressor C, cooled in a further heat-exchanger 7 and expanded in a turbine T which drives the compressor. The hot air through valve 6 and the cold air from the turbine T are combined in proportions to obtain the required cabin temperature, the valve 6 being controlled by control circuit 10. This circuit receives signals from sensors G and H in the duct D and J in the cabin, the desired temperature being set by thermostat 11 in the cabin. The valve 6 operates fast enough to compensate for changes of throttle opening on the gas turbine. If the ice anticipator I detects an ice-forming temperature the valve 6 is opened to raise the temperature to just above this temperature.
Patent GB-975243-A (GB)
Title: Improvements in photographic reproduction processes and in photographic materials therefor
Inventor: MIJOVIC MIROSLAV VASA
IPC: G03C1/34
Filed: 1960-02-04
Abstract: 975,243. Photographic material. KODAK Ltd. Feb. 2, 1961 [Feb. 4, 1960], No. 3940/60. Heading G2C. 4-mercapto-1, 2, 3-triazanaphthalene is either added to a silver halide emulsion as an anti-foggant or used in the silver salt diffusion transfer process as a blue-black toning agent where it is added to the silver halide emulsion layer, the receiving layer or the alkaline developing solution.
Patent GB-1249192-A (GB)
Title: Improvements in or relating to fluidised beds
Inventor: MCKAY PETER HENRY
IPC: C09D5/46
Filed: 1969-01-23
Abstract: 1,249,192. Fluidised beds. PLASTIC COATINGS Ltd. 22 Jan., 1970 [23 Jan., 1969], No. 3992/69. Heading B2L. A fluidised bed coating apparatus comprises a first vessel 1 and a second vessel disposed therein having an upper portion 5 for powdered plastics material and a lower portion 6 separated therefrom by a porous partition 7 an inlet 8 for introducing gas into the lower portion 6 and means comprising a wheel 19 having scoops 12 for conveying powdered plastics material from the first vessel into the second vessel. A porous partition 3 is provided in the first vessel and its contents are fluidised by a gas stream through an inlet 4. Scoops 12 pick up material through slots 13 and discharge at right angles to the direction of rotation over a lip 16. The second vessel may be vibrated by a vibrator 15 to prevent air bubbles in the coating bed. The motor 11 may be infinitely variable up to a maximum speed of rotation. The articles to be coated may be heated before dipping.
Patent GB-476211-A (GB)
Title: Improvements in or relating to helical-fin tubular heat-exchange units and methods of production
IPC: F28F1/36
Filed: 1937-02-10
Abstract: 476,211. Making gilled tubes. CHASE BRASS & COPPER CO., Inc. Feb. 10, 1937, No. 4007. Convention date, Oct. 26, 1936. [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] The helical fin of a heat-exchange tube is secured in position by strips of metal applied to one or both sides of the fin. After slipping the precoiled fin on the tube, the strips, which may be of triangular, rectangular or circular cross-section, are secured to the tube at their ends 17a, 18a and wound thereon during rotation of the tube by a grooved roller 19 mounted on a travelling carrier 20. Thereupon, the free ends of the strips are secured to the tube and the whole dipped in a bath of solder or tin. In a modification, either the strips or the tube are coated with solder or tin prior to the winding operation, and the strips and fin are secured in position after winding by heating the tube until the solder &c. runs.
Patent GB-636937-A (GB)
Title: Improvements in or relating to wheeled carrier devices
IPC: B62B1/12
Filed: 1948-02-11
Abstract: 636,937. Seats; furniture. WATSON, W. R. Feb. 11, 1948, No. 4023. [Classes. 52 (ii) and 52 (iii)] [Also in Group XXXII] A wheeled carrier comprises a backbone 1 having one or more wheels 2, at its lower end, and a collapsable receptacle 7 together with seat means 3 at its upper end, by means of which the carrier can be propelled. The backbone may be telescopic and the seat means may be similar to that on a shooting stick. The wheels may also be mounted on a collapsable parallelogram structure which collapses to bring the wheels clear of the ground and this may be operated automatically by the seat members.
Patent GB-1089279-A (GB)
Title: Copolymers of terminally usaturated olefins and vinyl compounds and a process for manufacturing the same
IPC: C08F4/12
Filed: 1965-01-29
Abstract: Alternating copolymers of an olefin having 2 to 20 carbon atoms and a terminal unsaturation and a vinyl compound of the general formula <FORM:1089279/C3/1> wherein Z is oxygen or sulphur, Y is Z1R, Z1H, Z1Me, <FORM:1089279/C3/2> NR1R11 or R group or hydrogen or halogen in which Z1 is oxygen or sulphur, R is a C1-C20 hydrocarbon group, and R1 and R11 are the same or different and are hydrogen, C1-C20 hydrocarbon groups or derivatives thereof, or R1 and R11 together form a divalent group, Me is a metal of the first group of Mendeleev's Periodic Table or ammonium, and Me1 is a metal of the second group of Mendeleev's Periodic Table, are prepared by polymerizing the two monomers in the presence of a catalyst of formula AlR111nX3- n wherein R111 is a C1-C20 hydrocarbon group, X is halogen and n is an arbitrary number satisfying the relationship 0<n<3.  The term "olefin" includes such materials as vinyl cyclohexane, styrene, N,N-dimethylaminostyrene, and allyl benzene. Polyimerization may be carried out in bulk or in solution in an inert vehicle.  The order of bringing together of the reagents is such as to form first a complex of said vinyl compound and the organoaluminium compound.  The catalyst may be made by mixing an aluminium trialkyl with an aluminium trihalide.
Patent GB-923169-A (GB)
Title: Switch apparatus for detecting delivery of parts
IPC: B30B15/28
Filed: 1962-02-02
Abstract: 923,169. Punching. G. WINTRISS. Feb. 2, 1962, No. 4116/62. Class 83 (4). A stop mechanism for a punch press having means for ejecting the workpiece along a discharge path comprises first electric make-andbreak means that move in timed relation with the dies between a press controlling and a non- controlling position, a missing parts detector located along said discharge path and including second electric circuit make-and-break means with a feeler positioned to be struck by a part discharged along said path, and a controller that stops the press when the feeler is not struck by an ejected workpiece while the first make- and-break means is in the controlling position. The apparatus comprises a delivery shoot 27 which supports a missing part detector 32. The detector comprises a plurality of feelers 34 depending from an axle 66 which is supported by a block 68 of electrical insulating material. The feelers extend around portions of the axle exposed by slots 72 in the block, the remaining portions of the block serve to space the feelers transversely. The bottom portions of the feelers are twisted at 78 and below the twist are of zig-zag shape. The feelers are held in a vertical position, until struck by a workpiece, by magnets 92 located in sockets 94 in the face of the block 68 and loosely retained by pins 96 mounted in the block 68 and extending through grooves 98 in the front face of each magnet. A spring 86 is stretched across the detector and is contacted by a feeler as it swings forward. The axle 66, the feelers 34 and the spring 86 form part of the circuit of a controller 52. Also forming part of the circuit is a switch 40 which comprises a movable contact 42 attached to the ram 12 of a press 10 and a fixed contact 46 attached to a fixed part of the machine. The contacts 42 and 46 touch when the machine is operating during the part of its cycle when a part 36 should be discharged. The controller 52 is connected by terminals 56 to the clutch of the press to prevent the application of power for the next cycle if the controller does not receive an impulse from the detector 32 during the time that the switch 40 was closed during any successive cycle. The detector may be used with a conveyer in place of the shoot. Parts are blown into the shoot or conveyer by air blast from nozzles 26. A reset switch 60 is connected with terminals 62 of the controller for manual operation of the machine. In a modification, the detector is wired so as to connect the magnet at one side of the detector to one end of the circuit and the magnet at the other side of the detector to the other end of the circuit so that the feelers and magnets form a series circuit and movement of any feeler out of contact with its magnets will break the circuit to provide an impulse for the controller.
Patent GB-693622-A (GB)
Title: Improvements in or relating to a heat exchanger and method of making the same
IPC: F28F1/20
Filed: 1950-02-17
Abstract: 693,622. Matting heat-exchangers. HOUDAILLE-HERSHEY CORPORATION. Feb. 17, 1950 [March 8, 1949], No. 4129/50. Classes 83 (ii) and 83 (iv). [Also in Group XIII] A method of making a heat-exchanger comprises forming a groove 13 in a metal plate 11, placing a straight portion of a sinuous tube 12 in the bottom of said groove, which has a depth greater than the diameter of the tube, and deforming the plate at 23, 24 to anchor the tube to the plate. The formation of the grooves 23, 24 may be carried out by means of a pair of co-operating dies or rollers 16, 17, and when a die is used it is preferably of such size as to receive an entire heat exchange unit, Fig. 1 (not shown). The deformations 23, 24 may be continuous along the length of a main groove 13 or they may be formed only at spaced points along the groove.
Patent GB-545949-A (GB)
Title: Improvements in or relating to refractory castings for glass melting and other apparatus
IPC: C04B35/42
Filed: 1941-03-27
Abstract: 545,949. Refractory substances for glassmelting apparatus &c. HADDAN, R..(Corning Glass Works). March 27, 1941, No. 4145. [Class 22] A heat-cast refractory for glass-melting apparatus &c. consists wholly or mainly of ferrous chromite and is substantially free from compounds other than those of iron and chromium. 10-40 per cent. of Fe 3 O 4  and/cr Fe 2 O 3 , and chrome green oxide as used for paint may be used.
Patent GB-977899-A (GB)
Title: Trawl-gear ground-rope bobbin
IPC: A01K75/06
Filed: 1960-02-05
Abstract: 977,899. Ground rope bobbins. G. WEBSTER. Feb. 1, 1961 [Feb. 5, 1960], No. 4159/60. Heading A1A. A trawl gear ground rope bobbin formed in one piece of compounded natural or synthetic rubber comprises a hub 1 joined to a rim 3 by radial spokes 2. Webs 4 extend between the spokes 2 and fillets 5 project inwardly from the rim 3 between each set of adjacent spokes.