baber/WOPTO huggingface dataset:
Patent GB-796484-A (GB)
Title: O-aryl o-methyl phosphoroamidothioates
IPC: C07F9/24
Filed: 1957-02-13
Abstract: The invention comprises O-aryl O-methyl phosphoroamidothioates of the formula <FORM:0796484/IV (b)/1> wherein X is either chlorine or bromine and R is hydrogen, methyl, or ethyl.  They may be obtained by reacting an O-aryl O-methyl phosphorochloridothioate of the formula <FORM:0796484/IV (b)/2> in the presence of an inert solvent with an excess of ammonia, methylamine, or ethylamine.  The reaction is exothermic and takes place smoothly at a temperature in the range - 10 DEG  to 30 DEG  C. to form the desired product and ammonium hydrochloride or amine hydrochloride.  Specified inert solvents are acetone, methyl ethyl ketone, carbon tetrachloride, and benzene.  It is preferred to use at least two molecular proportions of ammonia or amine for each molecular proportion of the phosphorochloridothioate reagent.  The reaction is preferably carried out in a water-miscible solvent using aqueous ammonia or aqueous amine but gaseous ammonia or alkyl amine may also be used.  Examples are given for the production of compounds in which X is chlorine and R is hydrogen, methyl and ethyl respectively, and in which X is bromine and R is hydrogen and ethyl respectively.  The products are stated to be effective as parasiticides (see Group VI) and may also be used as preservatives for paper, paint and wood.  The O-aryl O-methyl phosphoro-chloridothioates used as starting materials may be obtained by reacting one molecular proportion of the corresponding O-aryl phosphorodichloridothioate with one molecular proportion of sodium methylate in an inert organic solvent such as benzene.  Specified temperatures for this reaction are 30 DEG  to 80 DEG  C.ALSO:O-aryl O-methyl phosphoroamidothioates of the general formula: <FORM:0796484/VI/1> wherein X is either chlorine or bromine and R is hydrogen, methyl, or ethyl (see Group IV (b)) are stated to be effective as pesticides and for this purpose they may be dispersed on a finelydivided carrier and employed as dusts, or they may be used in oils or as constituents in water emulsions or in water dispersions. Specified products are those in which X is chlorine and R is hydrogen, methyl, and ethyl respectively, and in which X is bromine and R is hydrogen and ethyl respectively.
Patent GB-1368357-A (GB)
Title: Process for the desulphurisation of molten iron
IPC: C21C1/02
Filed: 1972-02-02
Abstract: 1368357 Desulphurization of pig iron ACIERIES REUNIES DE BURBACH-EICHDUDELANGE SA 2 Feb 1972 [4 Feb 1971 22 June 1971] 5000/72 Heading C7D Pig iron is desulphurized by-passing the molten iron 2' from a ladle 1 into a treatment container 4 which contains a desulphurizing slag 3" and then passing the iron back into the ladle 1 via an outlet tube 6 so that the iron passes through another desulphurizing slag 3' on the surface of the iron 2' in ladle 1. The iron is pumped into the container 4 by electromagnetic means 11 and gas means 9 and the slag is introduced into the container 4 from a dosing- feeder 8. The gas introduced into the gas means 9 may be a neutral or reducing gas and the desulphurzing agent may be sodium carbonate, powdered lime, flux limestone, calcium carbide, calcic cyanamide utilized either alone or mixed with one another. The desulphurizing agent may also be introduced into the inlet tube 5. In a variant the outlet tube 6 dips below the slag in the ladle 1.
Patent GB-998837-A (GB)
Title: Improvements in or relating to control of the transmission of electrical signals through networks
Inventor: LEMAN HUGH SPENCE
IPC: H04B3/12
Filed: 1962-02-09
Abstract: 998,837. Transistor amplifier circuits; automatic gain control. STANDARD TELEPHONES & CABLES Ltd. Feb. 8, 1963 [Feb. 9, 1962], No.5067/62. Headings H3T and H4R. An amplifier has a gain controlling negative feedback network which includes at least two resistive elements and two switching devices controlled by a unidirectional voltage so that operation of the switching devices varies the impedance of the feed-back network and hence the gain of the amplifier by two or more fixed amounts. Fig. 2 shows the preferred embodiment in which the amplifier transistors TR 3  and TR 4  have negative feed-back from output to the emitter circuit of transistor TR 3  via the feedback network R" R 2  and R 3 . Variation of the feed-back is accomplished by switching symmetrical transistors TR 1  and TR 2 . With TR 1  conducting the feed-back is zero, TR 1  non- conducting and TR 2  conducting the feed-back is at an intermediate value and with both TR 1  and TR 2  non-conducting the feed-back is a maximum. Capacitors Ca and Cb are D.C. blocking capacitors and resistor R 5  or R 5 <SP>1</SP> or R 5 <SP>11</SP> is inserted to prevent any D.C. surge on operation of transistors TR 1  or TR 2 . Transistors TR 1  and TR 2 . may be replaced by diodes.
Patent GB-114487-A (GB)
Title: Improvements in the Construction of Cyanamide and like Silos.
Inventor: SVENDSEN OLE
IPC: B65D90/00
Filed: 1917-04-11
Abstract: 114,487. Svendsen, O. April 11, 1917. Storage bins.-Silos for the storage of cyanamide, lime, or other expansible materials are provided with an internal arrangement of sloping shelves or ridges b<1>, b<2> supported on the walls a or on columns d, so that cavities c are left to allow room for the expansion of the stored material. Specification 7241/89 is referred to.
Patent GB-1111891-A (GB)
Title: Process for producing derivatives of nucleic acid
IPC: C12P19/32
Filed: 1966-02-07
Abstract: Derivatives of nucleic acids are produced by fermentation in the presence of 1-200 mg. of iron, 10 m g-15 mg. of manganese, 0.5-30 mg. of calcium, and 1-1000 m g. of zinc bivalent metal ions, each amount being per litre of fermentation medium.  The derivatives specified are 51-inosinic acid, 51-guanylic acid, guanosine di- and tri-phosphates, 51-adenylic acid, and adenosine di- and tri-phosphates. Specified micro-organisms are Brevibacterium ammoniagenes, Micrococcus sodonensis, and Aspergillus sojae.  The metal ions are either added in the form of their sulphate or hydrochloride, or are present as impurities in other components of the fermentation medium. The fermentation is carried out under aerobic conditions, at 20 DEG  to 40 DEG  C., and with a pH of 5 to 9.  The examples include comparative tests using only three of the metal ions in the suitable concentrations, and also tests using amounts of Mn2+ which are outside the given limits.
Patent GB-564927-A (GB)
Title: Improvements in chopping or mincing appliances
IPC: B26B23/00
Filed: 1943-04-02
Abstract: 564,927. Mincing apparatus. LAWRENCE, J. April 2, 1943, No. 5281. [Class 28 (ii)] A hand mincer comprises blades b<1> ... b<8> slit at e, e<1> to interlock and bent at c<5>, c<7> to form a central square socket, with a sharpedged bottom x, for the stem a<1> of a handle a, to which the bent parts are secured by nails &c., Fig. 3. Additional blades passing centrally through the handle stem may be employed. The blade edges may be serrated and the blades may be curved. The assembled blades may be welded together at the socket, and a separate metal socket may be welded in the socket formed by the blades.
Patent GB-535501-A (GB)
Title: Improved high aperture photographic objectives
IPC: G02B9/34
Filed: 1940-03-21
Abstract: 535,501. Photographic objectives. KODAK, Ltd. March 21, 1940, No. 5284. Convention date, June 8, 1939. [Class 97 (i)] A photographic objective comprises, behind the diaphragm, a compound component having two oppositely-curved cemented surfaces R 9 , R 10 , and, in front of the diaphragm, a collective first component, a compound collective second component having a cemented surface R 4  convex to the incident light, and a third bi-concave component forming a biconvex air lens with the second component. The rearmost component may be bi-convex having a bi-concave or bi-convex middle element, the first and second components may be meniscus, and the third component may be compound, the glasses having substantially the same refractive index but different dispersions. The rearmost component may have a bi-concave middle element of low refractive index, a rear element of high refractive index, e.g. greater than 1.7, and a front element of an intermediate refractive index. Limits for surface radii and refractive indices, and complete data for three examples, are included in the Specification.
Patent GB-468862-A (GB)
Title: Bottle support or rest for use on bottle labelling machines
IPC: B65C9/06
Filed: 1936-02-21
Abstract: 468,862. Labelling - machines. KERMODE, W. M. Feb. 21, 1936, No. 5297. [Class 73] A bottle support comprises a cradle 1 pivotally mounted on a crutch 2 and held in an adjusted position by a binding screw 4 passing through a slot 5 in a flange on the cradle.
Patent GB-139302-A (GB)
Title: Improvements in lamp brackets or supports for use on motor-cars and other vehicles, motor-cycles, and the like
IPC: B60Q1/04
Filed: 1919-03-04
Abstract: 139,302. Camelinat, E. G. March 4, 1919. Brackets, lamp.-A lamp for use on motor-cars, motor-cycles, and other vehicles is supported on a bracket so as to be adjustable about both a vertical and an horizontal axis by means of worm gearing. The lamp body 1 is formed with a depending tongue 2 pivoted on a screw pin 5 between the jaws of a fork 3 carried by a pillar 4 mounted in a socket 11 on the vehicle. The lamp is adjustable about an horizontal axis by means of a worm spindle 9 engaging worm teeth 7 cut on the tongue 2. The worm spindle 9 is mounted at one end in the fork 3, and at the other end in a bush 12 screwing into the fork 3. The lamp may be locked, when adjusted, by tightening a nut 6 on the pin 5. The lamp is adjustable about a vertical axis by means of a worm spindle 15 similarly mounted in a collar 16 on the socket 11 and engaging worm teeth 17 on the pillar 4. Specification 132,943 is referred to.
Patent GB-1414811-A (GB)
Title: Internal combustion engines
IPC: F02M21/02
Filed: 1972-02-04
Abstract: 1414811 Heating charge SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 2 Feb 1973 [4 Feb 1972]  5327/72 Heading F1B In a method of supplying a liquified hydrocarbon fuel to an I.C. engine the fuel is vapourized by heat from the engine inlet air, mixed with the inlet and the resulting fuel/air mixture is supplied to the engine. A vacuum-insulated tank (1), Fig. 1 (not shown) with a relief valve (2) supplies vapour/gas (L.N.G.) and liquid respectively through valves (3, 4) solenoid-operated from the ignition system to an off-take valve (5) and thence via a pressurereduction valve (6) to a heat exchanger 7 with engine intake air as the heat exchange medium. Fuel vapour/gas flows from heat exchanger 7 via conduit 8 to gas carburetter 9 for mixing with air from intake 10. The off-take 5 has inlets 16, 17, Fig. 2 respectively supplied with vapour/gas and liquid and an outlet 18. Vapour/gas from tank 1 passes via inlet 44 into space 40 and its pressure compresses the inter-connected bellows 37 and 36. Air in space 41 is vented via channel 45. Since chamber 42 is connected to space 23 the pressure in chamber 42 is equal to the pressure of vapour/ gas or liquid flowing through chamber 23. With valve 20 in the position shown in which liquid flows into space 23 via inlet 17 and groove 26 and a significant vapour/gas-pressure exists in tank 1 and therefore in space 40, the differential forces arising on bellows 37, 36 moves the valve member 20 against spring 31 to connect space 23 to the vapour/gas inlet 16. Since the pressures in spaces 23 and 40 then equalize the valve member 20 tends to return to the Fig. 2 position and takes up a position in which either vapour/gas or liquid or a mixture of both flows out via outlet 18. The heat exchanger may include a fuel header tank and an expansion tank in an air duct which has a drain pipe for condensation. Alternatively the heat exchanger may be incorporated within an air filter (69), Fig. 3c (not shown).
Patent GB-967888-A (GB)
Title: Improvements in or relating to thermo elements
IPC: H01L35/08
Filed: 1963-02-11
Abstract: 967,888. Thermo-electric devices. NIPPON ELECTRIC CO. Ltd. Feb. 11, 1963 [Feb. 10, 1962 (2)], No. 5462/63. Drawings to Specification. Heading H1K. A thermo-element is manufactured by welding together P-type and N-type members with or without and intermediate member by H.F. induction heating. This may take place in an inert atmosphere. The members may be cast, sintered or grown crystals. Suitable N-type materials are cobalt silicide, or an alloy of N- type silicon and chromium. The P-type materials may be manganese silicide or an alloy of P-type silicon and chromium. The intermediate part if used may be of cobalt silicide, manganese silicide or an alloy of cobalt silicide and manganese silicide. Various shapes for the elements are described.
Patent GB-266538-A (GB)
Title: Improvements in and relating to the furnaces of boilers and the like
IPC: F23M3/00
Filed: 1926-02-26
Abstract: 266,538. Neil, J., and Neil, J. M. Feb. 26, 1926. Firebridges.-In a boiler furnace a chamber j is located behind the ashpit end plate a and firebridge b, the roof of the chamber being formed of spaced curved or half-arched bars f having pockets g carrying bricks h also spaced apart so as to leave perforations i in the roof. Air from the space k below the firebars l is admitted to the chamber j through an opening m in the plate a, controlled by a damper n adapted to slide on rods o and operated by a rod q extending to the front of the furnace. The bars f are supported between a rearwardly projecting flange c on the plate a and the upper edge of a plate d secured to the end plate a by tie-rods e. Extending between the bars f and supported at their ends in the pockets g, are the tapered bricks h, the pockets being so arranged that the upper surfaces of the bricks lie on an unbroken curved plane which extends from the level of the firebridge b rearwards and upwards. A soot opening r fitted with a door s is provided in the plate a and a similar door may be fitted in the plate d. The sliding damper n may be mounted on the tie-rods e that connect the plates a, d.
Patent GB-588774-A (GB)
Title: Improvements in or relating to liquid-cleansing apparatus
IPC: C23G3/00
Filed: 1945-03-05
Abstract: <PICT:0588774/III/1> A self-contained liquid-cleansing apparatus for cleansing engine or machine parts by immersion in a liquid, e.g., paraffin, comprises a casing a divided into upper and lower compartments c and b.  The upper compartment contains the cleansing liquid f and a perforated dipping tray g with hinged handles h adapted to rest on supports i.  A blower s is mounted at the rear in front of a grille t and in line with the tray g and nozzle u. Articles on tray, after dipping in liquid f are raised to the position shown in Fig. 2, and on starting the blower, an air stream passes via conduit x moisture-extracting chamber b conduit v and nozzle u over the articles in tray, thus drying them.  A hinged or slidable lid j with viewing window k and rubber-sleeved openings p allows of manual operation of tray without interfering with the interior air-flow.
Patent GB-685709-A (GB)
Title: Improvements in or relating to the manufacture of rubber articles
Inventor: JONES FREDERICK ARTHUR
IPC: C08K5/38
Filed: 1950-03-07
Abstract: Zinc lupetidinedithiocarbamate for use in a rubber mix (see Group V) is prepared by adding lupetidine to a mixture of carbon disulphide and sodium hydroxide solution, filtering off the sodium lupetidinedithiocarbamate thus formed and then adding zinc chloride solution and washing the resultant precipitate of zinc lupetidine dithiocarbamate.ALSO:Rubber articles are obtained by compounding rubber latex with sulphur, a vulcanizing accelerator comprising a salt of a N- substitute dithiocarbamic acid and 1-20 parts by weight of a salt of an alkyl xanthate for every 100 parts by weight of the dithiocarbamate, adding a gelling agent, shaping and gelling the mixture and then vulcanizing.  A sponge product may be obtained by foaming the mix in a frothing machine after the addition of sodium ricinoleate.  The metal salt of a N- substituted dithiocarbamic acid is preferably water insoluble, specified compounds being the dithiocarbamate of zinc pentamethylene, zinc phenyl methyl, zinc lupetidine (made by the method described in Group IV (b)), and of solenium diethyl; water soluble dithiocarbamates such as those of sodium pentamethylene, sodium dimethyl and sodium dibutyl may however be used.  The preferred xanthates are sodium, potassium, ammonium or zinc, isopropyl xanthates.  The gelling agent may be sodium silicofluoride, and zinc oxide, and mercaptobenzthiazole may also be added.
Patent GB-306510-A (GB)
Title: Improvements in aeroplanes
IPC: B64C29/00
Filed: 1929-02-21
Abstract: 306,510. Ruttiens, F. Feb. 22, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Stopping way; steering.-For the purpose of rising or descending vertically, the rear portions 11, 11<1> of the planes of an aeroplane are movable from a position in line with the front portions 1, 2 to a vertical or any intermediate position so as to build up pressure beneath the planes 1, 2. The portions 11, 11<1> are connected together by rods 13 which may be connected to arms on a transverse shaft rotatable by the pilot. The elevator is moved similarly to the portions 11, 11<1>.
Patent GB-121888-A (GB)
Title: Improvements in or connected with Gear Shafts and Wheels or other Driving or Driven Members which are Carried or Directly Engaged by such Shafts.
IPC: F16H55/17
Filed: 1918-04-05
Abstract: 121,888. Austin Motor Co., and Austin, Sir H. April 5, 1918. securing toothed wheels &c. on shafts. - Gear teeth a cut in a shaft A to engage a gear-wheel B on a parallel shaft are extended to form splines for engagement by similar teeth on wheels C, D. &c. to be secured on the shaft A. The wheets may be. secured in axial position by a radial screw c or by tangential bolts c engaging circumferential groves cut in the teeth. The teeth may be cut in separated lengths, and the spline portions may be shallower than the gear teeth. The teeth on the wheels C, D need not reach the bottom of splines a.
Patent GB-634580-A (GB)
Title: Improved process and catalyst for the dehydrogenation of aliphatic mono-olefines
IPC: C07C5/333
Filed: 1947-02-28
Abstract: A dehydrogenation catalyst comprises a calcium nickel phosphate prepared as in Specification 634,391, but containing 6 to 12 atoms of calcium per atom of nickel, and a minor proportion, preferably less than 30 per cent, of a chromium oxide, usually the sesquioxide.  The chromium oxide may be added at any stage after precipitation of the calcium nickel phosphate either as powder or by addition of a chromium salt, e.g. nitrate or oxalate, which is hydrolysed or decomposed to the oxide.  The calcium nickel phosphate precipitate is preferably warmed, e.g. to 50 DEG  C. or over, with the mother liquor or water before separation and incorporation of the chromium oxide. The catalyst may be granulated and reactivated as described in Specification 634,391.ALSO:Olefines having at least 4 carbon atoms in the chain containing the olefinic linkage are thermally dehydrogenated as described in Specification 634,391 by passage with steam through a bed of catalyst which consists of calcium nickel phosphate, but containing 6 to 12 atoms of calcium per atom of nickel, and a minor proportion, preferably less than 30 per cent of a chromium oxide, usually the sesquioxide (see Group III) at 500-750 DEG  C. The catalyst may be reactivated as described in Specification 634,391 and may be used for the same conversions but has a longer life than the calcium nickel phosphate alone.
Patent GB-1532562-A (GB)
Title: Diamond cutting apparatus
IPC: B24B9/16
Filed: 1976-02-13
Abstract: 1532562 Grinding DIAMOND INSTITUTE 13 Feb 1976 05839/76 Heading B3D An apparatus for cutting a cylindrical or conical base on a diamond A comprises a bruting machine 1 having a power-driven spindle 12 and a chuck or clip 11 for holding the diamond, a power-driven rotatable tool shaft 41 substantially at right angles to the spindle and having at its end a diamond tool B, means for adjusting the position of the tool angularly in horizontal and vertical directions, means 51, 52 providing an axial feed of the tool towards the diamond, and means 82, 83 providing a continuous oscillating movement of the tool and tool shaft about a pivot 71 parallel to the axis of the tool shaft. The spindle 12 is supported in bearings 13 on a pedestal 14 mounted on a base 15 and is rotated by a belt drive. A turntable 9 is adjustable about a pivot 16 on the base and is connected by a hinge 75 to a support plate 7 adjustable about the axis of the hinge by screws 85, the tool spindle thus being angularly adjustable in horizontal and vertical directions. A housing 3 has lugs 74 mounted on an axle 71 supported by pedestals 72 in the plate 7 whereby the housing is rockable about the axle upon rotation of a cam 82 engaging an adjustable follower 83 on the housing, the cam being rotated by a motor 81. The tool shaft 41 is mounted for rotation and axial movement in a bearing 45 in the front wall of the housing and has a chuck or stop 42 for holding the tool B in the form of an industrial or other disposable diamond. The shaft 41 has a splined connection to the drive shaft 44 of a motor 43 secured to the rear wall of the housing. The shaft is rotatable in but axially fixed to a push bar 53 which can be advanced to effect axial feed of the shaft 41 and tool B by rotation of a screw 51 driven by a motor 52 also fixed to the rear wall of the housing. A stop screw 61 is adjustable in the push bar and co-operates with a limit switch 63 to stop the axial feed and/or the tool rotation. In another embodiment, the shafts and motors are arranged in a cylindrical housing.
Patent GB-549175-A (GB)
Title: Improvements in, or relating to, the valve mechanism of internal combustion engines
IPC: F01L1/348
Filed: 1941-05-06
Abstract: 549,175. Regulating. WRIGHT, E. T. H. May 6, 1941, No. 5861. [Class 7 (vi)] For adjusting the timing of a cam shaft 4 driven by chain gear 13, tightening-pulleys 11 are mounted on a plate 12 pivoted on the cam shaft and adjusted together with the throttle by a connection 14.
Patent GB-1026765-A (GB)
Title: Ultraviolet-resistant terpolymer
Inventor: DEBELL JOHN MILTON
IPC: C08F212/10
Filed: 1963-02-14
Abstract: An ultraviolet and weather resistant terpolymer consists essentially of at least 15% by weight of methyl methacrylate, at least 25% by weight of acrylonitrile and at least 40% by weight of styrene, the terpolymer having an A.S.T.M. melt index not exceeding 1 gram per 10 minutes at 425 DEG  F. and 250 p.s.i.  The above monomers are copolymerized in water containing as dispersing agent Na3PO4 and CaCl2, a surface active agent dodecylbenzene sodium sulphonate, and a catalyst lauroyl peroxide to give a product in bead form.  The bead product is purified by steam distillation followed by acidification and washing with water.