baber/WOPTO huggingface dataset:
Patent GB-1404776-A (GB)
Title: Simultaneous production of aromatic and isobutane concentrates
IPC: C10L1/06
Filed: 1972-09-29
Abstract: 1404776 Cracking &c UNIVERSAL OIL PRODUCTS CO 29 Sept 1972 [30 Sept 1971] 44978/72 Heading C5E An aromatic concentrate and isobutane are made simultaneously from a hydrocarbon feed by: (a) hydrocracking the feed over a composite catalyst comprising a noble metal of Group VIII or nickel and the product of rection between alumina and a sublimed Friedel-Crafts halide, (b) separating the hydrocrackate to provide an isobutane fraction and a heptane-plus fraction, (c) reforming the heptane-plus fraction to convert naphthenic hydrocarbons to aromatics, (d) separating the reformate to provide an aromatic concentrate and a paraffinic fraction, and (e) recycling at least part of the paraffinic fraction to step (a). As shown, a heavy naphtha enters by line 1, and is cracked at 2 in the presence of hydrogen over a catalyst comprising nickel on alumina, on to which aluminium chloride has been sublimed, and the product is fractionated at 4. Heptanes and higher are reformed at 12 with added hydrogen over a catalyst of platinum, rhenium, and combined chloride on alumina. The entire reformate (as shown) or reformate topped to hexanes is extracted with a solvent, e.g. sulpholane, but others are listed, at 14, and the aromatic fraction sent to the gasoline pool 24. The raffinate is recycled to the cracking zone 2, and the pentane-hexane fraction (if any) to the still 4. Isopentanes and isohexanes from the fractionator go directly to the pool 24. Normal pentanes and normal hexanes are isomerized at 22 over a catalyst of platinum and fluorine on alumina in the presence of hydrogen, and the isomerizate is recycled to the fractionator. Butanes may be dehydrogenated at 17 and alkylated over HF or BF 3  catalyst at 19, or outside olefines may be used for the alkylation. The alkylate goes to the pool 24, unreacted isobutane is recycled. Propane may also be dehydrogenated and used in alkylation, or the propene may be hydrated to isopropanol, which can be used in chemical manufacture or may also go to the gasoline pool. Butane from an outside source may go to the isomerization (22) to provide additional isobutane for the alkylation. The preferred Friedel-Crafts halides are aluminium fluoride and chloride, but aluminium bromide, antimony pentachloride, beryllium chloride, germanium tetrachloride, ferric chloride, ferric bromide, gallium trichloride, stannic bromide, stannic chloride, titanium tetrabromide, titanium tetrachloride, zinc bromide, zinc chloride and zirconium chloride are also referred to. Quench streams may be used to control the temperature in the hydrocracking zone.
Patent GB-1369006-A (GB)
Title: Process for purification of alpha-unsaturated nitriles
IPC: C07C67/00
Filed: 1971-09-29
Abstract: 1369006 Purification and chlorination of α- unsaturated nitriles TAKEDA YAKUHIN KOGYO KK 29 Sept 1971 [13 Oct 1970] 45285/71 Heading C2C A crude α-unsaturated aliphatic nitrile having 3 to 5 C atoms, recovered by distillation from the reaction mixture resulting from the gasphase chlorination of the same at an elevated temperature, is purified by contacting the crude nitrile with Fe or Al or an oxide thereof and then separating the purified nitrile from the latter. The contacting is preferably carried out using gaseous crude nitrile at 200 to 450 C. for 4 to 6 seconds. The quantity of Fe, Al or oxide thereof used is preferably 0À08 to 0À8 m.<SP>2</SP> (in terms of surface area) per 100 kg of crude nitrile. The examples describe the purification of methacrylonitrile and acrylonitrile. The thus purified nitriles are subjected to gas-phase chlorination when little or no polymerization occurs. Reference has been directed by the Comptroller to Specification 1,040,124.
Patent GB-937920-A (GB)
Title: Joint sealing device for masonry joints
Inventor: FUJIHARA YOSHIKI
IPC: E04B1/68
Filed: 1961-12-19
Abstract: 937,920. Expansion and contraction joints for roads &c. SERVICISED PRODUCTS CORPORATION. Dec. 19, 1961, No. 45404/61. Class 20 (4). In a contraction joint between masonry bodies a rubber strip 12 comprising a bridge portion 13a and wings 13b ending in anchoring ribs 13c is associated with filter members 14, e.g. of metal, secured to support members 15- 17 so that when on contraction the concrete sections 11b, 11c move apart and the bridge portion 13a is stretched it is supported against inward displacement by the filler members 14. For use in an expansion joint the bridge portion 13a is prestretched, during installation and a conventional filler strip is inserted between the members 14. In slightly modified embodiments the wings slope downwardly towards each other and may be without anchoring ribs and the filler bodies are of triangular section.
Patent GB-1118210-A (GB)
Title: A process for dyeing and/or printing polypropylene with monoazo dyes
Inventor: LEUCHS DIETER
IPC: C09B45/14
Filed: 1965-10-27
Abstract: The dyes of formulae <FORM:1118210/C4-C5/1> <FORM:1118210/C4-C5/2> <FORM:1118210/C4-C5/3> <FORM:1118210/C4-C5/4> <FORM:1118210/C4-C5/5> <FORM:1118210/C4-C5/6> <FORM:1118210/C4-C5/7> <FORM:1118210/C4-C5/8> <FORM:1118210/C4-C5/9> are prepared by conventional diazotization and coupling processes.ALSO:The invention provides a process in which metal containing polypropylene is dyed with monoazo dyes of general formula:-  <FORM:1118210/D1-D2/1> in which R1 is an unsubstituted or substituted alkyl or aryl radical, R2 is an unsubstituted or substituted aryl radical and the ring A may have non-ionic substituent e.g. halogen atoms, or alkyl or alkoxy dialkylamino or acrylamino groups.  Metals present in the polypropylene may be zinc, aluminium, chromium, cobalt, iron or nickel, dyeing is advantageously effected at 70-130 DEG C at pH 4-5 conventional thickeners and dispersing agents being used.
Patent GB-1274076-A (GB)
Title: Oscillatory scanning device
Inventor: HOWE SPENCER DOUGLAS
IPC: H02K33/10
Filed: 1969-09-16
Abstract: 1,274,076. Oscillating motors. HUGHES AIRCRAFT CO. 16 Sept., 1969 [11 Oct. 1968], No. 45609/69. Heading H2A. In a scanning device a pivotally mounted element, such as a mirror 16, is oscillated through a predetermined angle by an electromagnetic driving arrangement energized over pairs of contacts closed by the element at the ends of its travel, means being provided for bearing the element to one of the ends of travel. In the embodiment shown in Figs. 6, 8, and 9, the mirrror is pivotally mounted in a frame at one side by means of a shaft 18 engaging a bearing- 20 in a stationary core 60 and at the other -side by cruciform spring blades 32, 34. Core 60 is surrounded by a coil 64 and both are located in a housing 22 having internal teeth 70, Fig. 8, cooperating with teeth 76 on an annular rotor 74 secured to the mirror. Also secured to the mirror is a contact element 44, Fig. 9, having spring arms 50 carrying contacts 54 which cooperate with fixed contacts 52 at the limits of travel of the mirror, these pairs of contacts being connected in the circuit of coil 64. Fig. 8 shows the position of the teeth when the mirror is in the centre of its travel, and when the device is inoperative, the cruciform spring mounting blades 32, 34 bias the mirror to one limit of its travel where the teeth 70, 76 are out of register and one set of contacts 52, 54 is closed. Thus, on energisation of coil 64 over these contacts a torque is applied to rotor 74. Immediately the rotor moves, the said contacts 52, 54 open and the other pair are closed as the mirror reaches its other limit of travel. Torque in the opposite direction is then applied to the rotor and the energy stored in spring arm 50 by the momentum of the mirror supplements this torque in returning the mirror to its starting point where-upon the cycle repeats. 'The shaft 18 may be omitted and the rotor 74 provided with a bearing engaged by a fixed pin which locates the core 60 centrally, Fig. 10 (not shown). In a further modification, Fig. 12, spring mounting blades 33, 34 are replaced by a pivot comprising a shaft 90 on the mirror which is attached to a toothed rotor 94 mounted on a bearing 96. A shaft 98 suppots. bearing 96 and is surrounded by a, permanent magnet 102 in a housing 100 having teeth 104 cooperating with the rotor 108. The spacing of teeth 104 is greater than the width of teeth 108 so that in the intermediate position of the mirror, in which teeth 100 lie midway between teeth 104, the permanent magnet exerts a torque on the rotor 94 biasing it to-either of the limit positions of the mirror in which teeth 104, 108 are in alignment.
Patent GB-1066579-A (GB)
Title: Catalyst
IPC: B01J21/18
Filed: 1964-11-10
Abstract: Specially prepared catalysts consisting of Rh2S3 on carbon are used to effect reductive alkylation of p-amino diphenylamine with methyl isobutyl ketone in the presence of hydrogen.  Reaction temperature of 180-185 DEG  C. and pressure of 400-600 p.s.i.g. was recorded in the autoclave used to effect alkylation. Adsorption of hydrogen stopped when desired reaction was completed and yields were theoretical.ALSO:An alkylation catalyst consists of Rh2S3 on carbon and is made by reacting an alkaline sulphiding agent (e.g. Na2S, K2S or (NH4)2S) with an aqueous solution of a trivalent rhodium compound (e.g. RhCl3) in the presence of a particulate carbon support, and thereafter separating the sulphided rhodium on carbon from mother liquor. Physical data e.g. particle size and surface area of the catalyst are disclosed.
Patent GB-1021175-A (GB)
Title: Improvements in and relating to cartons
Inventor: LEDREW ROBERT BOYD
IPC: B65D5/66
Filed: 1963-11-21
Abstract: 1,021,175. Collapsible cartons. AUSTIN PACKAGING Ltd. Nov. 20, 1964 [Nov. 21, 1963], No. 45956/63. Heading B8P. A cardboard carton has a rectangular base with front and rear walls 4, 6 and two side walls 8 each formed from panels 10, 12, 14. The panels 10, 12 are half the width of the base but have extensions 16, 18 which are adhered to each other, and the panel 14 is adhered to panels 10 and 12 but does not overlap extensions 16, 18 so that there are no more than two layers of cardboard on the side wall. The hinged lid 22 has a flap 26 which engages between flaps 24 and the front wall 4, and the panels 12 may have flaps similar to 24 to prevent foreign matter entering the erected carton.
Patent GB-1020809-A (GB)
Title: Unsaturated phosphoric acid esters and their use as pest-control agents
IPC: C07F9/113
Filed: 1964-11-11
Abstract: The invention comprises compounds of the general formula <FORM:1020809/C2/1> in which R1 and R2, which may be the same or different, represent alkyl groups containing 1 to 4 carbon atoms, R3 represents an alkyl group containing 1 to 12 carbon atoms which may be substituted with a carboxylic acid ester group or an aryl group which may be substituted with one or more halogen atoms and/or nitro groups and/or alkyl groups containing 1 to 3 carbon atoms, R4 represents an alkyl group containing 1 to 4 carbon atoms, and x is 0, 1 or 2 with the exception that R4 must not represent a methyl group when R3 represents an alkyl group containing from 1 to 4 carbon atoms and x is 0. They are prepared by condensing a haloalkanonethioether or oxidation product thereof of the general formula <FORM:1020809/C2/2> in which Hal represents a chlorine or bromine atom with a trialkyl phosphite, followed, if required, by oxidation at the sulphur atom. Hydrogen peroxide is preferably used for the oxidation.  The condensation is preferably carried out at a temperature between 10 DEG  C. and 120 DEG  C. in the presence or absence of an inert solvent such as benzene toluene or diethyl ether, the alkyl halide formed during the condensation being conveniently entrained in a stream of an inert gas e.g. nitrogen.  The compounds are useful as the active ingredient in pesticidal compositions (see Division A5).ALSO:A pesticidal composition comprises together with a carrier, extender or diluent an active ingredient of the general formula:  <FORM:1020809/A5-A6/1> in which R1 and R2, which may be the same or different, represent alkyl groups containing 1 to 4 carbon atoms, R3 represents an alkyl group containing 1 to 12 carbon atoms which may be substituted with a carboxylic acid ester group, or an aryl group which may be substituted with one or more halogen atoms and/or nitro groups and/or alkyl groups containing 1 to 3 carbon atoms, R4 represents an alkyl group containing 1 to 4 carbon atoms, and x is 0, 1 or 2, with the exception that R4 must not represent a methyl group when R3 represents an alkyl group containing 1 to 4 carbon atoms, and x is 0 (see Division C2).  The pesticidal compositions may be in the form of a solution.  Suspension, aerosol, emulsion, dusting powder, wettable powder or paste and may contain one or more additional substances having pesticidal activity. Examples describe an emulsion prepared by emulsifying in water an active substance in xylene or cyclohexanone and sodium naphthalene sulphonate, a dust prepared by grinding an active substance with kaolin or another solid carrier material such as keiselguhr, an aerosol by dissolving an active substance in difluorodichloromethane and a suspension prepared by spraying an active substance onto keiselguhr, adding sodium naphthalene sulphonate and suspending this mixture in water.
Patent GB-1069917-A (GB)
Title: Fluid regulating valve mechanism
Inventor: HOGG CHRISTOPHER ALAN
IPC: G05D7/01
Filed: 1963-11-21
Abstract: 1,069,917. Respiratory appliances. BRITISH OXYGEN CO. Ltd. Nov. 23, 1964 [Nov. 21, 1963], No. 46016/63. Heading A5T. [Also in Division F2] A face mask 5 is supplied from a puncturable container 1 via a pointed valve member 30, the latter serving as a pressure regulator and also to effect the initial puncturing of the container. By rotating a control member 21 counterclockwise about its pivot 22, a relieved portion of a cam 23 allows the valve member, together with a seal 37, piston 32 and ball 33 mounted on a resilient member 34, to rise under the action of spring 31. Gas then flows to the mask via passage 4, chamber 26, filter 9 and restriction 6. Gas from chamber 26 can pass, via passage 43, to a chamber 40 where it acts on seal ring 37 in opposition to the spring to close the valve when a predetermined pressure is reached in chamber 26.
Patent GB-1484928-A (GB)
Title: Processes and apparatus for the treatment of organic wastes to reduce the bod and nitrogen content thereof
IPC: C02F3/30
Filed: 1974-10-24
Abstract: 1484928 Purifying waste-water DRAVO CORP 24 Oct 1974 [26 June 1974] 46136/74 Heading C1C The purification of waste-water containing BOD ammonia nitrogen and inorganic nitrogen by treatment in a biological aeration zone to reduce BOD and oxidize the nitrogen compounds to nitrate, followed by denitrifying the nitrate-containing water in a denitrification zone, is improved by recycling a portion of the nitrate-containing waste-water and mixing it with incoming raw waste-water under facultative conditions in a zone containing facultative microorganisms wherein denitrification of the recycled waste water and reduction of the BOD of the raw waste-water are effected simultaneously. Plant for carrying out the process is described.
Patent GB-1398367-A (GB)
Title: Data processing systems
IPC: G06F9/26
Filed: 1973-10-04
Abstract: 1398367 Microprogram units INTERNATIONAL BUSINESS MACHINES CORP 4 Oct 1973 [26 Dec 1972] 46304/73 Heading G4A The contents of certain bit positions of a control register 11 are used to read out a word, longer than register 11, from a microprogram store 19, and, in dependence on bits in register 11 and control signals from a data processing system, either parts of the word read from store 19 or the output of an auxiliary word generator 18 are selectively gated to the control register 11. As described, implementation of a current macroinstruction held in a register 42 is performed by a sequence of microinstructions from store 19, decoding of the next address field 14 of a microinstruction in register 11 and accessing of store 19 taking place concurrently with decoding and execution of the control field 12 of the microinstruction whereby when four microinstructions, one from each module 22-25, are available at gates 30-33, the branch conditions will have been determined by branch logic 16 to enable one of gates 30-33 in dependence on the microinstruction branch control field 15, system conditions and bits 6 and 7 of the current macroinstruction OP code. While the current macroinstruction is being executed, the next macroinstruction is entered in a buffer 41 and bits 0-5 of its OP code are decoded and used to address one of 64 initial microinstructions held in a further store 18. The final microinstruction of a sequence has a control field 12 which is decoded to produce an end of operation signal EOP to gate out the initial microinstruction from store 19 for the execution of the next macroinstruction in buffer 41. In certain circumstances however, the end of operation may be conditional, e.g. on the need to normalize a floating point number, and in this situation branch control 16 enables one of gates 30-32, but not 33, to select a next microinstruction, specified by field 14, from one of modules 22-24. The arrangement requires less microprogram storage space than prior art systems, by reducing the number and length of words which have to be stored, and enables faster operation to be achieved.
Patent GB-1206191-A (GB)
Title: Fluid sample flow cell
Inventor: EMARY ROBERT J
IPC: G01N21/05
Filed: 1967-10-12
Abstract: 1,206,191. Fluid sample flow cells; spectro-photometry. GILFORD INSTRUMENT LABORATORIES Inc. Oct.12, 1967 [Oct.27, 1966], Heading G2J. A fluid sample flow cell for use in optical investigations such as in spectro-photometry, has a body 13 with a cylindrical passage 15 passing through it, this passage receiving a cylindrical insert 37 with an axial hole to which the sample fluid is drawn through inlet port 43, the fluid being expelled through port 41. Windows 29 and 31 are pressed against shoulders 27 by springs and, with 0-rings 21, 23, seal the open ends of axial hold 49 to define an analysis chamber. Aperture 35 in diaphragm 33 passes light through the test fluid. Radial connecting passage 51 between port 43 and hole 49 is so shaped as to reduce turbulence in the entering fluid and so eliminate the formation of bubbles. The exit end of insert 37 is recessed at 53 to define a transverse channel 59 giving access to an annular wall 32 formed in block 13 and containing the exit port 41. The formation reduces bubbles and traps those that form in wall 39. An air bleed-way 65 leads from recess 53 to wall 39. The insert configuration may be formed as an integral part of the all body. Insert 37 may be of a fluoroethylene polymer and is treated to improve wetting by immersing in a solution of sodium alphanaphthylate rinsing in water, and cleaning in liquid dichlorodifluoromethane subjected to ultrasonic vibration.
Patent GB-951910-A (GB)
Title: A distributor of liquid ammonia
IPC: A01C23/02
Filed: 1962-12-13
Abstract: 951,910. Agricultural implements. K. O. ANDERSEN. Dec. 13, 1962 [Dec. 22, 1961], No. 47147/62. Heading A1B. A distributer of liquid ammonia comprises a chamber 1 having a number of outlets 10 for connection to discharge tubes on harrow teeth for dispensing liquid ammonia into the soil, and an inlet 6 for connection to a source of liquid ammonia, is characterized in that the outlets are constructed as substantially parallel tubes 8 closed at one end 12 and provided with a number of narrow openings 11, the mouth of the inlet being directed towards the bottom of the chamber parallel to the tubes.
Patent GB-1195089-A (GB)
Title: A Variable Radio Frequency Attenuator.
Inventor: HARWOOD LEOPOLD ALBERT
IPC: H03G1/00
Filed: 1967-10-17
Abstract: 1,195,089. Gain control. RCA CORPORATION. 17 Oct., 1967 [17 Oct., 1966], No. 47194/67. Heading H3T. A variable attenuator comprises a threewinding transformer, wherein an input signal is applied to two of the windings to develop mutually opposing fields and an electronic impedance device is used to vary the signal in one of the two windings so that the resultant signal in the third winding is proportional to the difference in amplitude between the signals coupled to the said two windings. In an embodiment the transformer comprises a ceramic ferrite core 15 with a trifilar winding, winding 13 being connected directly across the signal source 11, winding 17 via the collector-emitter path of a transistor 21 and D.C. blocking capacitor 20, and winding 16 being connected to the output terminals 18. The transmission is varied by varying the base bias of the transistor, which may be replaced by a PIN diode (Fig. 2, not shown). Such attenuators may be employed in a superheterodyne receiver, one being connected between the aerial and the tuner and another between the tuner and the I.F. amplifier (Fig. 3, not shown).
Patent GB-1254407-A (GB)
Title: Nuclear fuel particles
IPC: G21C3/20
Filed: 1970-10-05
Abstract: 1,254,407. Nuclear fuel. UNITED STATES ATOMIC ENERGY COMMISSION. 5 Oct., 1970 [9 Oct., 1969], No. 47235/70. Heading G6C. A nuclear fuel particle for use in a high temperature gas-cooled reactor comprises a central core of fissile or fertile material coated with the following layers in succession:-(a) a low density buffer layer; (b) a dense layer of silicon, zirconium or niobium carbide; (c) a layer of pyrolytic carbon of density 0À7 to 1À2 gm./c.c.; and (d) an outer layer of isotropic pyrolytic carbon of density 1À5 to 1À7 gm./c.c. The outer layer (d) shrinks under high temperature fast neutron irradiation and maintains layer (b) in compression during the fuel lifetime. The compressible layer (c) prevents stresses of too great magnitude early in the fuel life. The core may comprise spheroids of carbide, oxide, nitride or silicide of U, Th, or Pu. In an example Th-U carbide spheroids in the form of a fluidized bed are treated successively with:-a mixture of acetylene and helium at 1100‹ C. to form a coating of spongy pyrolytic carbon; a mixture of methane and helium at 2000‹ C. to form a layer of isotropic pyrolytic carbon; a mixture of methyltrichlorosilane and hydrogen at 1500‹ C. to deposit a layer of SiC; a mixture of acetylene and helium at 1000‹ C. to form a coating of spongy pyrolytic carbon; and a mixture of propane and helium at 1400‹ C. to form a layer of isotropic carbon. Reference has been directed by the Comptroller to Specifications 878,927, 942,073, and 943,719.
Patent GB-1241187-A (GB)
Title: Improvements in the production of copy sheets
IPC: B41M5/10
Filed: 1968-10-04
Abstract: 1,241,187. Carbon paper. KORES MFG. CO. Ltd. 4 Oct., 1968 [18 Oct., 1967], No. 47299/68. Addition to 1,175,065. Heading D2B. [Also in Divisions C1 and C3] The process of 1,175,065 is modified by using pigments in which before incorporation into the homogeneous, flowable mixture, the hydrophobic characteristics of the first or second pigment is enhanced by contacting with (a) a polynuclear aromatic hydrocarbon, e.g. pyrene, fluoranthene, 1:2 benzopyrene, 3:4 benzopyrene, benzoperylene or coronene; or (b) a saturated or unsaturated fatty acid having at least 8 carbon atoms, e.g. octoic acid, ricinoleic acid, or naphthenic acid, or a cycloaliphatic acid, and/or the hydrophilic characteristics of the second or first pigment, respectively are enhanced by contacting with glycerol, pentaerythritol or a polysaccharide, e.g. starch or chlorinated starch. Preferably, the hydrophobic characteristics of the first pigment are enhanced, and the hydrophilic characteristics of the second pigment are enhanced. The first pigment may be channel black or carbon black, and the second pigment may be titanium white.