baber/WOPTO huggingface dataset:
Patent GB-805157-A (GB)
Title: Process for the manufacture of 3:3:5-trimethyl-cyclohexanol
Inventor: PEPPIATT EDWARD GEORGE
Filed: 1953-12-11
Abstract: In a process for the manufacture of 3:3:5-trimethyl-cyclohexanol containing at least 80 per cent by weight of the high melting isomer, isophonone or dihydroisophorone is reacted with hydrogen under pressure at a temperature not exceeding 100 DEG  C. in the presence of metallic nickel as catalyst, and the catalyst is removed when 3:3:5-trimethyl-cyclohexanol having the content of 80 per cent or more of the high melting isomer has been formed.  The metallic nickel catalyst may be e.g. produced by reducing nickel carbonate or oxide with hydrogen or it may be "Raney" nickel (Registered Trade Mark).  A solvent may be employed, e.g. a saturated lower aliphatic alcohol, e.g. methanol or ethanol, or a saturated aliphatic or cycloaliphatic hydrocarbon, e.g. hexane or cyclohexane.  The proportion of the high melting isomer in the product may be increased by recrystallization from solvents in which the high melting isomer is less soluble than the low melting isomer, e.g. ethyl alcohol, acetone, ether, light petroleum, benzene and ethylene dichloride. In examples: isophorone or dihydroisophorone in methanolic solution is reduced with hydrogen at elevated pressure using a reduced nickel catalyst and when hydrogen absorption ceases the reaction mixture is filtered and methanol is distilled off (1); in a similar process an elevated temperature but no solvent is employed (2); products of the invention are recrystallized from ethylene dichloride (3) and light petroleum (4).
Patent GB-971941-A (GB)
Title: Improvements in or relating to spectrometers for pulse analysis
Inventor: FRAYSSE GEORGES
IPC: G01T1/36
Filed: 1960-10-10
Abstract: 971,941. Radiation analysis. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 10, 1960 (Oct. 28, 1959], No. 34652/60. Heading G1A. [Also in Divisions H1 and H3] A pulse amplitude analysing spectroscope utilises a cathode-ray tube having a memory or charge-storage electrode disposed between the fluorescent screen and the beam deflection system. As shown in Fig. 1, pulses from a detector D used in conjunction with a radio-active source S (e.g. caesium 137) are fed to a threshold amplifier 1 which eliminates small parasitic pulses and formed in circuit 2 into rectangular pulses of constant duration and amplitude proportional to the input pulse amplitude, which are fed via a paraphase amplifier 3 to the high voltage deflection plates 4 of the cathode-ray tube 5. The tube 5 has a conventional electron gun comprising electrodes 6... 9 and a storage electrode in the form of a fine mesh dielectric-coated metallic grid 13. The electron beam is normally biased off by the control grid 7 but is released by a pulse from circuit 17 or 18 when each pulse arrives at circuit 2. The beam is swept at the same time by a logarithmic or exponential waveform from a triggered sweep generator 19 or from a relaxation oscillator 20 fed to the vertical deflection plates 9. The grid 13 is normally at zero potential but, when swept by the beams from the electron gun 6. . . 8, deflected by plates 4, 9, gives rise to secondary emission so that a positively charged pattern is formed on the screen 13. This pattern persists indefinitely. If more than one pulse of a given amplitude is applied to the horizontal plates, an accumulation of charge causes the length of the resulting vertical deflection to become increased in proportion to the number of identical pulses. If the vertical deflection is derived from a free-running relaxation oscillator 20 giving a logarithmic or exponential waveform, pulses of a given amplitude become represented by a vertical line of charge points on the grid 13, the concentrations of points being higher where the sweep speed is lower. Electrons from a flooding gun 10, 11, 12 can only pass through the charged pattern on the grid 13 thus giving a corresponding display, Fig. 3, on the fluorescent screen 14. In the spectrum shown, the relative energy of pulses is displayed on the horizontal axis and the corresponding number of pulses on the vertical axis. The storage electrode 13 may be cleared by connecting it to an appropriate potential.
Patent GB-1528047-A (GB)
Title: Narrow fabric needle loom and fabric produced thereon
IPC: D03D47/44
Filed: 1975-08-21
Abstract: 1528047 Knitted selvedges BONAS MACHINE CO Ltd 26 Oct 1976 [21 Aug 1975] 34706/75 Heading D1E In the production of a knitted selvedge in which an additional locking thread is provided by a guide 32 selected wefts B, D, F (Fig. 5) are retained in an extended condition by weft loop engaging means 18 the weft loop engaging means being arranged to maintain the loops in extended condition until the normal chain stitch is formed.
Patent GB-948833-A (GB)
Title: 6-dibenzo-(c,e)-o-thiazine-5-dioxides
IPC: A01N43/72
Filed: 1961-09-27
Abstract: The invention comprises derivatives of 6-dibenzo (c,e)-o-thiazine-5-dioxide of general formula: <FORM:0948833/C2/1> where R represents a halogen atom or a trifluoromethyl radical, R1 represents a hydrogen atom an alkyl or acyl radical; n1+n11 is at least equal to 1. The compounds are made by reacting a 2-nitrobenzenesulphonic acid chloride with a primary or secondary aniline, at least one of the starting components containing a halogen or trifluoromethyl group, reducing the 2-nitrobenzene sulphanilide with stannous chloride to form 2-aminobenzene sulphanilide, diazotising this compound and reacting the diazo compound with sodium acetate to form a cyclised triazine compound and reacting this with sodium hydroxide and copper to eliminate nitrogen to produce the desired product. The product may be alkylated, acylated, or substituted with further halogen and/or nitro groups.  The following are some of the compounds obtained (numbered as in the Patterson and Capell Ring Index 1940 p. 253). 8-choloro-6-dibenzo (c,e)-o-thiazine-5-dioxide; 7,9 - dichloro - 6 - dibenzo (c,e) - 6 - methyl - o - thiazine - 5 - dioxide; 7.9,10 - trichloro - 6 - dibenzo (c,e) - o - thiazine -5 - doxide; 7, 9, 10 - trichloro - 6 - dibenzo (c,e) -6 - n - butyl - o - thiazine - 5 - dioxide; 7,9,10 -trichloro - 6 - dibenzo (c,e) - 6 - methyl - o -thiazine - 5 - dioxide; 7, 9, 10 - trichloro - 6 -dibenzo (c,e) - 6 - ethyl - o - thiazine - 5 - dioxide; 7, 9, 10 - trichloro - 6 - dibenzo (c,e) - 6 - allyl - o -thiazine - 5 - dioxide; 10-trifluoromethyl-9-chloro - 6 - dibenzo (c,e) - 6 - methyl - o - thiazine - 5 -dioxide; 10 - trifluoromethyl - 9 - chloro - 6 -dibenzo (c,e) - o - thiazine - 5 - dioxide; 7, 9, 10 trichloro - 6 - dibenzo (c,e) - 6 - b  - chloroethyl -o - thiazine - 5 - dioxide; 7,9,10 -trichloro - 6-dibenzo (c,e)- 6 - acetyl - o - thiazine - 5 - dioxide; 7,9,10-trichloro - 6 - dibenzo (c,e) - 6 - propionyl-o - thiazine - 5 - dioxide.  These compounds are useful as pesticidal compositions with a solid or liquid diluent or carrier.ALSO:Insecticidal compositions contain compounds of the general formula <FORM:0948833/A5-A6/1> where R is a halogen atom or a trifluoromethy1 radical; R1 is a hydrogen atom, an alkyl or acy1 radical; n1 + n11 is at least equal to 1 together with a solid or liquid with or without emulsifiers carrier or diluent or another insecticide.ALSO:Textiles are rendered resistant to attack by insects by treating in an acidic or neutral dyeing bath with a solution of the sodium salt of a compound having the general formula:- <FORM:0948833/D1-D2/1> where R is a halogen atom or trifluoromethyl radical; R1 is a hydrogen atom, or an alkyl or acyl radical; n1 + n11 is at least equal to 1. 0.1 to 0.3% by weight of the compound is used first at about 30% and then slowly raised to about 100 DEG C. Textile of or including wool are exemplified.
Patent GB-364260-A (GB)
Title: Improvements in, or relating to, ploughs
IPC: A01B15/02
Filed: 1930-11-19
Abstract: 364,260. Implements for working land. ROWE, G. E., Podymore, Ilchester, Somerset. Nov. 19, 1930, No. 34839. [Class 6 (i).] The upper member of the body part a of a plough is provided with a substantially vertical rib e coacting with a recess in the frame or beam b and forming a fulcrum about which the parts may be adjusted relative to one another, securing bolts c, d being provided near the ends of the upper member and spaced well away from the fulcrum. A third bolt g is provided near the fulcrum, and removable and interchangeable washers h are placed on the bolts c, d between the body a and beam b to facilitate rigid fixing and angular adjustment about the fulcrum.
Patent GB-648983-A (GB)
Title: An electric thermo-switch for fire alarm systems
IPC: H01H37/56
Filed: 1947-12-30
Abstract: 648,983. Thermal switches. DANSK TELEFONALARM AKTIESELSKAB. Dec. 30, 1947, No. 34901. Convention date, April 25, 1946. Addition to 647,359. [Class 38(v)] The thermal switch, of the parent Specification is modified in that the armature 18 is supported at or near its centre of gravity by two springs 19, 21, one or both of which may be adjustable.
Patent GB-1196856-A (GB)
Title: Balancer for a Rotary Body.
Inventor: ONUFER GEORGE ROHALL
IPC: D06F37/22
Filed: 1968-07-22
Abstract: 1,196,856. Balancing vehicle wheels. G. R. ONUFER. 22 July, 1968 [20 July, 1967], No. 34926/68. Heading B7C. [Also in Divisions D1-D2, F2 and F3-F4] An automatic balancer for a motor vehicle wheel comprises at least one hollow tube 20 which is mounted, substantially concentrically, on said wheel has movable therein a flowable mass medium 22 to at least partly offset wheel static unbalance, and is supported on said wheel by a stiffly resilient means 28 so as to be axially displaceable in response to, and so as at least partly to offset, body dynamic unbalance. The resilient means also supports the tube 20 for radial displacement to aid static balancing. The flowable mass medium should preferably half fill the tube 20 and may be a liquid not subject to freezing or undue expansion, e.g. a mixture of glycerin and mercury, or metal balls in a liquid suspension. As shown, a single tube 20 is mounted on a wheel rim 32 inside a tubeless tyre T. The stiffly resilient means may be a double folded continuous web or segments and may be integral with or bonded or welded to the tube 20. The tube and the web may be of dissimilar or similar materials and may be of polypropylene or Neoprene. The web is bonded or welded to equi-spaced feet 30 nested within the rim and secured thereto by adhesive or by tabs interlocking with rim depressions. The ends of the tube may be joined together by being telescoped over a common nipple (34), the joint being heat sealed if the materials are thermoplastic. Alternatively, the tube ends may be telescoped over each other and suitably bonded, clamped or fused. In Figs. 2-4 (not shown), one or two radially and axially movable tubes is (are) connected to the rim via one or two similar tubes fast thereon.
Patent GB-1071425-A (GB)
Title: Production of polyurethanes
Inventor: DIETERICH DIETER
IPC: C08G18/30
Filed: 1964-08-26
Abstract: A solution of a polyurethane is prepared by reacting an organic polyisocyanate with a polyhydroxyl compound and at the commencement of or during the reaction, adding an organic solvent which contains water present up to 1%, the ratio of NCO : OH groups being such that a reaction product having free NCO groups results, and when the NCO content is constant, adding an organic solvent containing water present in amount up to 20% of the solution. In a modification a solvent which contains water present up to 1% may be added to one component of the polyisocyanate polyaddition process and the other components added successively. In a typical Example (1) polypropylene glycol was reacted with 4:41-diphenylmethane diisocyanate and a solution of N-methyl diethanolamine in acetone containing 0.22% water then added and heated. After two hours more acetone containing 3% water was added.
Patent GB-1515187-A (GB)
Title: Optimisation of a characteristic quantity of a controlled plant
IPC: C04B7/38
Filed: 1975-08-22
Abstract: 1515187 Automatic control SIEMENS AG 22 Aug 1975 [22 Aug 1974] 35056/75 Heading G3N A plant is automatically controlled by applying a characteristic quantity q of the plant 11 to a v/f converter 16 and the resultant pulse-train applied to a store SP1 through a frequency-divider 17. The contents of the store SP1 is transferred at intervals to a store SP2 and compared, after D/A conversion (not shown), by a comparator 20. The comparison, represent K#q(n 1 ) is limited by device 21 and compared in a comparator 22 with a value p. The result is fed through a polarity reversing device 23 and as a desired charge #yn in a controlled variable y n  from store SP4 is added in a device 24 and fed to a store SP3 from which it is used as the valve y applied to the controlled plant 11. The sequencing of switches 12, 19, 25, and 26 is determined by a pulse sequence S1-S3 from a control unit 27 responsive to a pulse train f 2  derived from a pulse-generator 28 through a frequency -divider 29. The frequency-division effected by dividers 29, 17 is controlled manually by a device 30. The polarity-reversing device 23 is cycled by a bi-stable switch 31 triggered by pulses S1. The effect of the optimizing cycle is to approach the optimum value of q as shown in Fig. 2 with the optimum value being maintained by encursions P in the controlled variable y producing minimal perturbations of the characteristic quantity q. The plant is stated to be a ball mill for the manufacture of cement.
Patent GB-1371155-A (GB)
Title: Process for the manufacture of 6-methyl-uracil
IPC: C07D239/54
Filed: 1972-07-27
Abstract: 1371155 6-Methyluracil WACKER CHEMIE GmbH 27 July 1972 [3 Aug 1971] 35170/72 Heading C2C 6-Methyluracil is prepared by reacting urea with diketene in an organic solvent, optionally with the addition of acetic anhydride, in the presence of, as catalyst, a compound of the formula wherein R is a hydrogen atom or a (C 1 -C 4 ) alkyl group, and X is CH or a nitrogen atom, and/or a sodium salt of a (C 1 -C 4 ) carboxylic acid in an amount of from 0À1 to 10 grams per mol of one of the reactants, the ureide formation being carried out at a temperature of from 10 to 40‹ C. and the cyclization subsequently being carried out at a temperature of from 80 to 150‹ C.
Patent GB-1518387-A (GB)
Title: Fluorinated cation exchange membrane and use thereof in electrolysis of an alkali metal halide
IPC: C25B1/46
Filed: 1976-08-24
Abstract: 1518387 Membranes for chloralkali cells ASAHI GLASS CO Ltd 24 Aug 1976 [29 Aug 1975(2) 23 Sept 1975] 35210/76 Heading C7B [Also in Division C3] Chloralkali electrolysis is conducted in a cell having a fluorinated membrane formed of a copolymer of a fluorovinyl ether having the formula wherein 1 is 0 to 3; m is 0 to 6; n is 0 to 4 and one of 1 and m is not zero; X, X' and X" are the same or different and represent -F or -CF 3 ; A represents -CN, -COF, -COOH, COOR 1 , -COOM or -CONR 2  R 3 ; R 1  represents C 1  to C 10  -alkyl; R 2  and R 3  represent -H or C 1  to C 10  -alkyl and M represents an alkali metal or a quaternary ammonium group and a fluorinated olefin, or a hydrolyzed copolymer thereof. Other fluorovinyl ethers, e.g. perfluoro methyl or perfluoropropyl vinyl ether, fluoroketones, fluoronitroso compounds and fluorothio carbonyl compounds may also be used in the production of the copolymer.
Patent GB-778417-A (GB)
Title: Improvements in or relating to the preparation of cotton waste for spinning, and like processes
Inventor: LINNERT ARTHUR
IPC: D01G11/00
Filed: 1954-12-07
Abstract: 778,417. Opening and separating textile fibres. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. Dec. 7, 1955 [Dec. 7, 1954], No. 35324/54. Classes 120 (1) and 120 (3). In preparing cotton waste for spinning or breaking up rags and reclaimed woollen materials by subjecting the material to a treatment stage in which, or to a number of successive stages in at least one of which, part of the material is broken up and opened, the material is divided into two parts viz. one part containing most of the opened material and the other containing the remaining relatively compacted material, the former being passed on for further processing or to the next successive stage and the latter being fed again to the same or a preceding stage e.g. the material may be returned to a " devil ". In the machine illustrated, material fed by a conveyer 11 or 11a through feed rollers 12, 13, 14 or 12a, 13a, 14a is struck down by spikes on a cylinder 15 or 15a, heavy foreign matter is removed by a deflector 19 or 19a, and the division into two parts effected by a separating edge 20 or a stripping edge 22: opened material is collected and removed by a suction cage 18 or withdrawn by an air stream through a ducting 21a and compacted material is withdrawn through a conduit 21 or collected and removed by suction cages 18a, 18b. The divergence between the covers 17 and 16a and the surfaces of the cylinders 15 and 15a encourage formation of low air pressure regions which assist in the removal of opened material.
Patent GB-1074734-A (GB)
Title: Improvements in and relating to fuel cells
Inventor: BREELIE YVES
IPC: H01M8/04186
Filed: 1964-08-28
Abstract: 1,074,734. Fuel cells. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. Aug. 28, 1964 [Aug. 29, 1963], No. 35380/64. Heading H1B. In a fuel cell having at least one porous electrode 4 interposed between a gas and a liquid electrolyte flowing in contact with the carburant electrode 4 and fuel electrode 3, a suction pump 9 draws the electrolyte through the electrolytic compartment 6 from a storage chamber 10, the electrolyte level 14 of which is lower, than the lowest extremity of the compartment 6, and the pressure in the electrolytic compartment 6 is kept at a value not greater than the pressure of the gas or air on the outer face of the porous or diffusion electrode 4, e.g. atmospheric pressure. Electrolyte flow is controlled at 3a. The fuel is methanol or hydrazine supplied in the electrolyte of caustic potash solution or through the outer face of electrode 3, which is then porous. The electrodes are carbon or fritted metal, e.g. nickel, and the gas is air or oxygen. The oxygen electrode 4 may have an actuated charcoal catalyst or a deposit of platinum, gold or silver, while the fuel electrode catalyst is platinum, palladium or nickel, the electrode supports being carbon. A fuel cell battery is described (Fig. 5, not shown).
Patent GB-786351-A (GB)
Title: Improvements in or relating to lubricants and hydraulic fluids
Inventor: MORETON DOUGLAS H
Filed: 1953-12-19
Abstract: A lubricating composition contains a phosphate of formula <FORM:0786351/III/1> where R and R1 are phenyl, cresyl or xylyl and R11 is phenyl, cresyl, xylyl or an alkyl radical having 4 to 12 carbon atoms, and a chlorinated diphenyl which is soluble in the ester and contains at least 40 per cent of combined chlorine.  The composition is not a grease, is substantially hydrocarbon-free and contains no trialkyl phosphate.  Phosphates referred to are triphenyl, tricresyl, trixylyl, cresyl, diphenyl, butyl, amyl, hexyl, heptyl, octyl, 6-methyl heptyl and 2-ethyl hexyl diphenyl phosphates. The chlorinated diphenyl may be one containing 40 to 60 per cent combined chlorine, e.g. the tri-, tetra-, penta- and hexa-chlorodiphenyls.  Alternatively, a mixture of chlorinated diphenyls may be used.  The composition may contain 20-80 per cent of chlorinated diphenyl.  A viscosity index improving agent may be added to the composition.  Improving agents referred to are polyalkyl methacrylates, e.g. polyoctyl methacrylate; the polymers may have a molecular weight of 2000-14,000.  From 0.2-10 per cent of the polyalkyl methacrylate may be used (based on the sum of the phosphate and polymer as being 100 per cent) and may be dissolved in 45 per cent of a light petroleum oil.  Specification 712,062 is disclaimed. Specification 712,062 is referred to.
Patent GB-1355506-A (GB)
Title: Corpuscular beam microscopes
IPC: H01J37/20
Filed: 1971-07-28
Abstract: 1355506 Corpuscular beam microscopes SIEMENS AG 28 July 1971 [18 Sept 1970] 35463/71 Heading H1D A corpuscular beam (e.g. electron) microscope includes a transversely adjustable object table 1 carrying object cartridge 6 with conical portion 8 supporting object holder assembly 9 comprising an object holder carrier plate with a plurality of openings 12 to receive objects and also allowing beam passage therethrough, the holder assembly further comprising a rotatably mounted shaft 17 extending to a driven gear 18 supported on the cartridge cone to be rotatable about an axis spaced from the beam axis. Table I with thread 3 may rest on pole shoe 2 and transversely adjusted by push rods (31), (32) (Fig. 3, not shown) connected to handles outside the microscope, and return springs (33), (34). Cartridge 6 includes beam opening 7 and holder assembly 9 is pivotable about axis 11 parallel to beam axis 10. Further openings receive object carriers 13 clamped by disc 14 with screw 15. Gear-wheel 18 is supported by friction bearing 19 comprising a beryllium bronze ring and connected to external control (40) (Fig. 3, not shown) via gear-wheels (28), (30) (Fig. 2, not shown) and spline (38) with universal coupling (39). Cooling cap 25 is connected to cooling device 24. The object holder 9 may have four openings for object carriers 13 (Fig. 4, not shown) or may include arcuate slots (Fig. 6, not shown).
Patent GB-895954-A (GB)
Title: Improvements in and relating to electrical current regulation
Inventor: CORBYN DAVID BENJAMIN
IPC: G05F1/32
Filed: 1957-11-14
Abstract: 895,954. Automatic current control systems. ENGLISH ELECTRIC CO. Ltd. Nov. 13, 1958 [Nov. 14, 1957], No. 35564/57. Class 38 (4). An electric current regulating system comprises a transductor and a tap-changing transformer, the latter being arranged to tap-change so as to maintain the transductor within the limits of its range. A tap-changing transformer 11 supplies a load 15, 18 through a transductor 12 having a feed-back winding supplied from a rectifier 20 connected across the transductor which adjusts the transductor current, as measured by the volt drop across one winding, to a substantially constant value. When the volt drop goes outside a given range the tapchange gear operates to bring the current to the other end of the transductor characteristic. Alternatively the tap-change gear may be arranged to bring the current to the middle of the transductor characteristic. The tap-change gear may be operated by a high and low voltage relays which may be slugged to reduce unnecessary tap-changes. The single phase rectifier 20 may be replaced by a three-phase arrangement.
Patent GB-801024-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J1/00
Filed: 1956-11-21
Abstract: The invention comprises a 11b ,17b -dihydroxy-17a -methylandrostane-3-one of the formula: <FORM:0801024/IV (b)/1> wherein R is hydrogen or methyl and a process which comprises hydrogenating the 4-double bond in an 11b -hydroxy-17a -alkyltestosterone or an 11b -hydroxy-17-alkyl-19-nortestosterone, or a 17b -monoester or 11b ,17b -diester thereof, with hydrogen and an hydrogenation catalyst to produce the corresponding 11b ,17b -dihydroxy - 17a  - alkyl - 5a  (and 5b )-androstane-3-one, or 11b ,17b -dihydroxy-17a -alkyl-19-nor-5a - (and 5b )-androstane-3-one, or 17b -monoester or 11b ,17b -diester thereof.  The hydrogenation may be effected with hydrogen and a palladium catalyst, preferably using a solvent, e.g. ethyl alcohol.  Examples describe the preparation of 11b ,17b -dihydroxy-17a -methyl-5a -(and 5b ) -androstane-3-one, the corresponding 19-nor-compounds, the 17-esters thereof, e.g. formate, acetate, propionate, trimethylacetate, furoate, a - or b -cyclohexylpropionate, benzoate, phenylacetate, a - or b -cyclopentylpropionate, a - or b -phenyl-propionate, methylbenzoate, a - or b -furylacrylate, valerate and methacrylate, and the corresponding 11, 17-diesters.  Also mentioned are compounds in which the alkyl radical in position-17 is ethyl, propyl, isopropyl, butyl, sec.-butyl, amyl, hexyl, heptyl and octyl.  Specification 788,695 is referred to.