baber/WOPTO huggingface dataset:
Patent GB-821098-A (GB)
Title: Improvements relating to electroplated articles of alloy steel
IPC: C25D5/36
Filed: 1958-11-23
Abstract: An alloy steel contains more than 84% iron and either (a) 0.15 to 0.65% carbon, 0.3 to 10% nickel, 0 to 2.0% chromium, 0 to 2.0% copper, 0 to 1.2% molybdenum, 0 to 0.3% vanadium, up to 1.5% manganese, and up to 1.6% silicon, with or without up to 5% total of other alloying elements or (b) 2.5 to 3.5% chromium and 0.3 to 1.2% molybdenum with or without up to 0.3% vanadium but free of nickel.  A steel containing 0.35% carbon, 1.59% nickel, 0.72% chromium, 0.39% molybdenum, 0.59% manganese, and 0.33% silicon is heat-treated to a hardness of 310 Brinell by normalizing for one hour at 1650 DEG F. reheating to 1650 DEG F. and quenching in oil from this temperature, and tempering by heating for periods of one hour at each of the successive temperatures of 1050 DEG F., 1075 DEG F., 1125 DEG F. and 1175 DEG F.  A stirrer for use in the food and chemical industries and required to resist both fatigue and corrosion is formed of an alloy steel such as those above-mentioned, coated by electrolysis (see Group XXXVI), successively with a layer of tin of thickness 0.09 to 0.9 mil and a layer of nickel, preferably of thickness at least 0.05 mil.  An electrolytic cyanide copper flash coating may be applied between the tin and the nickel.
Patent GB-828522-A (GB)
Title: Purine derivatives and a process for the preparation thereof
Filed: 1957-10-29
Abstract: The invention comprises 6 - [211 - indolyl - (21) - ethyl - amino] - purine and 6 - [211 - (51 - hydroxy - indolyl - 21) - ethyl - amino] - purine and their preparation by heating a 6-alkyl-mercapto-purine or a 6-halogene-purine with the appropriate amino-ethyl-indole, in the latter instance in the presence of a hydrogen halide binding agent, e.g. an excess of the amino-ethylindole or potash.  An example is given.  The products are stated to be antagonists to 6-furfurylamino - purine.  Specifications 813,777 and 828,521 are referred to.
Patent GB-348614-A (GB)
Title: Improvements relating to field illuminating devices for eye pieces
IPC: G02B25/02
Filed: 1929-11-05
Abstract: 348,614. Eyepieces; magnifiers. RESPLENDINO, F., 3, Via Principe, Amedeo, Spezia, Italy. Nov. 5, 1929, No. 33683. Convention date, Nov. 5, 1928. Void [Published under Sect. 91 of the Acts]. [Class 97 (i).] The inner wall of a magnifying eyepiece is inclined at an angle of 45‹ and coated with luminous paint so that the object in the plane 1, 2, to be examined by the lens B is illuminated. An extension F is fitted to serve as a holder for the device, Maps, photographs &c. may by this means be examined in the dark. Protecting glasses are fitted to each end by screwed caps.
Patent GB-511250-A (GB)
Title: A process for recovering phenols from waste waters and apparatus for use in carrying same into effect
IPC: C07C37/00
Filed: 1938-11-19
Abstract: 511,250. Extracting phenols. ADLER, R Nov. 19, 1938, No. 33708. [Class 2 (iii)] To remove phenols from liquids, e.g., waste water from gas, coke, charcoal or power gas plants, the, liquids are passed through a layer of active carbon from which adsorbed phenols are therefrom recovered by extraction with a normally liquid organic solvent. used at a temperature far above its normal boiling point and at such an increased. pressure that its evaporation is prevented. The phenol is then recovered by evaporation of the solvent, either after reducing the solution to normal temperature and pressure or by reduction of the pressure on the,hot solution.;,;The increased temperature .and pressure, reduces the amount of phenols left in the active 'carbon which has therefor a longer life. Due to the increased pressure, a finely powdered, active carbon may be used and smaller apparatus with smaller quantities of solvent. Suitable solvents are, benzene, alcohols or chlorinated hydrocarbons. Phenol containing water is pumped by pump B into adsorber A<1> and thence into adsorber A<2> containing active carbon arid discharged at 3. When the carbon in adsorber A<1> is saturated with phenols it is extracted and the adsorbers are then changed round. The solvent is evaporated at C, condensed at D and pumped by pump E, via tube 7, leading through water separator G and heater F, to the. adsorber which is to be extracted. After extraction the phenol laden solvent passes through a pressure reducing valve H and cooler J to evaporator C wherein the solvent is again evaporated for further use while phenols are drained off by cock 10. Solvent is driven off from the extracted adsorbers by steam introduced. by pipe 11. A branch from this pipe may pass to evaporator C to provide the heat needed there. In a modification, in place of elements C, Hand J an expansion chamber K, Fig. 2, is provided. The hot phenol laden solvent under pressure enters this chamber by pipe 8 with regulating valve M. Solvent is vaporized and leaves by pipe 6 for condenser D while phenols or phenol-water mixture separates and is drained off by cock 13. A liquid trap L prevents phenol passing into tube 6. A safety valve N is provided. Specification 448,712 is referred to.
Patent GB-1475045-A (GB)
Title: Disc pack assemblies
IPC: G11B17/028
Filed: 1975-08-15
Abstract: 1475045 Disc pack assembly INTERNATIONAL BUSINESS MACHINES CORP 15 Aug 1975 [9 Sept 1974] 36992/75 Heading G5R Disc pack assembly 32, normally stored in cover 30, is mounted on disc pack drive shaft 74 by rotation of the cover and pack by handle 120, continued rotation of the cover producing its release after screw 56 has securely engaged the pack with the drive shaft.  The discs 34 are mounted on hub member 40 having a conical opening 46 in its base for registering the pack on the cone shaped end of the drive shaft 74. The discs are secured by a member 42 screwed to the hub which also loosely retains a second hub member 50. Within this hub member 50 the screw 56, which has a long head portion 58 formed with a slot 62 and cavity 60, is held against rotation by pin 64 which passes through the hub member and slot and is urged towards the conical opening 46 by a spring 66 in cavity 60 which acts between the pin and the base of the cavity. The cover 30 supports by plate spring 86 a member 88 carrying four equally spaced cam and notch lugs 94. When the pack is normally stored in the cover with the cover member 88 within the upwardly extending skirt 68 of member 44, an opposite two of the lugs 94 retain the ends of pin 64 in their notches 96 and thus retain the pack in the cover. During loading of the pack this is mounted on spindle 74 and the cover and pack are rotated clockwise until screw 56 has securely engaged the pack on the shaft. On subsequent rotation of the cover, spring 86 allows member 88 to move so that the ends of the pin move up the slightly sloping sides 100 of the notches and then along the cam portions 102 of the lugs so that the cover is released. On removing the disc pack opposite rotation of the cover initially secures the cover to the pack and then unscrews the pack.  During rotation of the cover its edge engages a lug 110 on spring 116 and flexes the spring so that a pawl 110 mounted at the end of the spring engages teeth 112 extending from the drive spindle to prevent spindle rotation.
Patent GB-793074-A (GB)
Title: Process of preparing alkaline earth metal salts of oil-soluble, heat-advancing, phenolic resins
IPC: C08G8/28
Filed: 1955-11-28
Abstract: In preparing an alkaline earth metal salt of an oil-soluble heat-advancing phenolic resin by reacting the resin dissolved in a solvent with the alkaline earth oxide, accelerated reaction is obtained by the presence of aqueous ammonia.  A 1 per cent ammoniacal solution in amount as low as one half part by weight per 100 parts resin is sufficient but preferably concentrations of 20-30 per cent in amounts of 2-2.5 parts by weight are employed.  Nonpolar non-electrolytic solvents are preferred.  In examples: (1) 2 parts 28 per cent aqueous ammonia were added to a mixture consisting of 90 parts of a p-tert.-butyl phenolformaldehyde resin, 5 parts MgO, 90 parts methyl ethyl ketone, and 96 parts rubber solvent.  The resin salt obtained mixed with 74 parts methyl ethyl ketone, 74 parts rubber solvent, 100 parts neoprene and 30 parts MgO was used as an adhesive; (2) the mixture employed consisted of 50 parts toluene, 50 parts methyl ethyl ketone, 50 parts phenolic resin, 10 parts CaO and 5 parts aqua ammonia.  A table is given showing the degree of salt formation using the following solvents:-methylethylketone, acetone, ethyl acetate, methylethylketone-rubber solution as compared with toluol, xylene, monochlorobenzene and carbon tetrachloride.
Patent GB-335106-A (GB)
Title: Improvements in and relating to a process for manufacturing artificial stone plates of fibrous materials and hydraulic cement
IPC: C04B28/02
Filed: 1929-11-08
Abstract: 335,106. Kunz, R. Nov. 23, 1928, [Convention date]. Plastic compositions containing fibres.-Slabs &c. made on a paper machine from fibres such as asbestos, and cement, are rendered less liable to disintegrate on being suddenly heated by the incorporation during manufacture, in the vat, on the machine, or on the batching drum, of about 5 per cent of an oil, preferably a light mineral lubricating oil.
Patent GB-638416-A (GB)
Title: Improvements in or relating to the treatment of porous thermosetting resin products
IPC: C08J9/40
Filed: 1946-11-19
Abstract: A process for modifying the properties of a porous thermosetting resin product capable of swelling when immersed in methyl ethyl ketone comprises impregnating the product with an ester plasticizer derived from (1) phosphoric acid or a carboxylic acid free from hydrocarbon radicals with more than 9 carbon atoms and (2) a hydroxy compound free from hydrocarbon radicals containing more than 7 carbon atoms, and maintaining the impregnated product at an elevated temperature to effect solution of the plasticizer in the resin. Suitable plasticizers in order of decreasing usefulness are di-(methyl glycol) phthalate, diallyl sebacate, monocresyl glyceryl diacetate, benzyl benzoate, trichlorophenyl phosphate, dibutyl sebacate, dibenzyl sebacate. The resin is immersed for 1-15 minutes in the liquid plasticizer or in a solution of the plasticizer in a hydrocarbon or chlorinated hydrocarbon, then withdrawn and heated to 50-150 DEG  C. for 1/2 -2 hours.  The resin used in the examples is phenol-formaldehyde resin made by the method of Specification 571,284, [Group IV], using hydrochloric acid as hardener and calcium carbonate as gas-evolving substance.  In examples: (1) the resin sheet is impregnated with a solution of tri-butyl phosphate in ethylene chloride, solvent and heated to 100 DEG  C.; (2) dibutyl phthalate is used in place of the tributyl phosphate of example (1), with heating at 130 DEG  C.; (3) diethyl phthalate is used instead of the dibutyl phthalate of example (2); (4) tri-butyl phosphate is used as plasticizer, with final heating at 60 DEG  C. Other suitable porous resins having intercommunicating cells may be used, such as urea-formaldehyde or phenolfurfural resins, or urea- or phenol-formaldehyde resins prepared by the process of Specification 586,199, [Group IV].
Patent GB-381771-A (GB)
Title: Improvements in the construction of sheet metal partitions or dividing walls for buildings
IPC: E04B2/78
Filed: 1931-12-10
Abstract: 381,771. Sheet metal walls and partitions. BROWN, L. A. L., 87, Havering Road, Romford, Essex, and RONEO, Ltd., 5, Holborn, London. Dec. 10, 1931, Nos. 34205/31 and 16877/32. [Class 20 (iv).] Sheet metal panels are supported by posts made up of four upright sheet metal sections, one pair of which receives the panels and the other pair being detachably fitted over flanged parts of the first pair. As shown, channel members 1 are placed on the floor and support the uprights 4, which are channel sectioned and have their ends 4a turned inwardly. Panels 2 are placed against the uprights 4 and are held in position by bolts 3. Another pair of uprights 6 of channel section are provided with channel members 7, spot welded or otherwise fastened thereto. The members 7 are capable of being sprung into position as shown. A key or spacing plate 5 rests on blisters 4b or other suitable projections on the members 4. In a modification the spacing plate 5 may be provided with projections bearing against inturned edges of the members 6, thereby rendering unnecessary the members 7. Specification 358,648 is referred to.
Patent GB-489032-A (GB)
Title: Improvements relating to direction finding particularly for aircraft
IPC: G05D1/02
Filed: 1936-12-14
Abstract: 489,032. Fluid-pressure servomotors. SPERRY GYROSCOPE CO., Inc. Dec. 14, 1936, No. 34237. Convention date, Dec. 13, 1935. [Class 135] [Also in Groups XXXV, XXXIV, and XXXVII] A system controlling course setting on an aircraft in accordance with indications from a directional wireless instrument comprises a nozzle 47<1> influenced by the instrument. A switch element 103 in the circuit of a course - adjusting motor 13 actuated by a diaphragm 96 normally subject to balanced pressure from air drawn through the nozzle and pipes 95, 951. Paddles 92, 921 are operated selectively when the nozzle is moved and cause obturation of one or other of the pipes and corresponding operation of the switch.
Patent GB-436696-A (GB)
Title: Improved electrical heating apparatus
IPC: H05B3/74
Filed: 1934-12-01
Abstract: 436,696. Electric hot-plates; wire resistances. ANGELL, F., 75, Itosebery Road, Muswell Hill, London. Dec. 1, 1934, No. 34530. Addition to 375,054, [Group XXXVI], and 410,712. [Class 39 (iii)] [See also Group XXXVI] In a device according to either of the parent Specifications the resistance coil F is flattened with the flat sides parallel to the heating surface. Insulating pieces A of baked ceramic material are arranged between the coil and the earthing structure C. A resistance D is included in the connection of the earthing structure to the metal plate E. Specification 281,004, [Class 39 (iii)], is referred to.
Patent GB-1117093-A (GB)
Title: Medicinal compositions with synergistic diuretic and anorexic activity
Inventor: RIVIERE CHARLES
IPC: A61K31/54
Filed: 1964-08-24
Abstract: Synergistic diuretic and anorexic compositions comprise at least one amphetaminic derivative and at least one diuretic sulphamide.  By amphetaminic derivative is meant a compound of the formula <FORM:1117093/A5-A6/1> wherein X, X1, and Y each represent a H or halogen atom or hydroxy radical, Z and R each represent a H atom or C1-5 alkyl radical and n equals 0 or 1 e.g. amphetamine, ephedrine, or more generally an amine derived from amphetamine having anorexic and central stimulant activity e.g. phentermine, chlorophentermine, or a salt or resinate of one of said amines with carboxylic or sulphonic ion exchange resins.  Other specified amphetaminic derivatives are 1 - phenyl - 2 amino butane, 1 - phenyl - 3 - amino butane and 3 - trifluoromethyl - 1 - phenyl - 2 - ethylamino propane. By diuretic sulphamide is meant not only sulphamide compounds which are carbonic anhydrase inhibitors such as acetazolamide, dichlorophenamide, or disamide but also sulphamide compounds which contain a benzothiadiazine ring, for example, compounds defined by the formula <FORM:1117093/A5-A6/2> wherein R2, R3 and R5 represent a H atom, or an alkyl, vinyl, aryl, or aralkyl radical or a heterocyclic radical, which may be substituted by other radicals or atoms such as sulphamoyl radicals or halogen atoms, and R4 represents a halogen atom or an alkyl or etherified hydroxy radical. Especially useful diuretic sulphamides are chlorothiazide and its derivatives such as hydrochlorothiazide, trichloromethyl hydrochlorothiazide, and trifluoromethylhydrothiazide.  The compositions may include a xanthic diuretic e.g. theophylline.
Patent GB-1314588-A (GB)
Title: Process and apparatus for spreading out a plurality of filaments
IPC: D04H3/03
Filed: 1970-07-16
Abstract: 1314588 Opening filaments; forming filamentous webs METALL GESELLSCHAFT AG 16 July 1970 [17 July 1969] 34625/70 Headings D1F and D1N [Also in Division F1] Extruded filaments are spread, preparatory to their deposition in the form of a fleece on a support, by passage through apparatus comprising a vertical drawing nozzle, through which the filaments are drawn off and stretched by the action of a gaseous entraining medium, e.g. air or steam, flowing therefrom at supersonic speed, at the end of which is mounted a spreading element having an inlet of circular cross-section and an outlet of elongated rectangular cross-section below each end of which is at least one deflector. The deflectors are spaced apart and extend perpendicularly to the larger dimension of the outlet and the mutually facing inner surfaces are so shaped that gas entraining the filaments and carrying them through the nozzle and spreading element is deflected towards the inner surfaces of the deflectors, whereby the filaments will be spread. The longitudinal edge of the outlet of the spreading element may have the form of rounded lips, see also Figs. 2 (a), 2 (b) (not shown). The deflector working surfaces may be plane or curved, converging and then diverging, with intermediate and/or terminal portions in which they are parallel, and may have rounded upper, and sharp trailing, edges. Two pairs of deflectors may be mounted so as to react successively with the gas stream, see also Figs. 3 (a)-(d) (not shown). Reciprocating movements may be imparted to the filaments and the entraining gas, parallel and relative to the support in order to lay down a filamentous mat. In the apparatus of Fig. 1 (a), an entraining gas flow from a driving nozzle 1 is converted to a spread form in an element 2. Deflectors 4, connected to element 2 by ribs 7, direct the flow further outwards to the lower edge 8 and the expanding stream draws air from the surrounding atmosphere over edges 6.
Patent GB-1520085-A (GB)
Title: Amplifying circuit
IPC: H03D1/22
Filed: 1976-08-19
Abstract: 1520085 Transistor amplifiers SONY CORP 19 Aug 1976 [19 Aug 1975] 34644/76 Heading H3T A transistor amplifier, e.g. for feeding a synchronous detector 2, comprises a common emitter stage 11 having first collector load means R 2 , R 3 , feeding a grounded base stage Q15, Q16 having second collector load means 3, a first output from 11 and a second output from Q 15, Q16 providing amplified signal and reference outputs, respectively. A modulated signal from a source 1 is amplified by the first stage 11 and supplied to the synchronous detector 2 through emitter follower transistors Q13, Q14. The load 3 of the grounded base stage is tuned to the carrier frequency, and the output of this stage is also supplied to the synchronous detector, as reference input, through emitter follower transistors Q17, Q18. The grounded base stage presents a low input impedance to the first stage 11. As an alternative to the push-pull circuit shown in Fig. 2, the amplifier may be in single-ended form, Fig. 3 (not shown). The circuit may be used in a TV receiver to take in video I.F. plus sound I.F. signals and to output demodulated video plus sound I.F. signals.
Patent GB-521955-A (GB)
Title: Improvements in the manufacture of pneumatic tyre covers and apparatus therefor
IPC: B29D30/34
Filed: 1938-11-29
Abstract: 521,955. Pneumatic tyres. DUNLOP RUBBER CO., Ltd., and HILL, J. W. M. Nov. 29, 1938, No. 34693. Addition to 438,738. [Class 144 (i)] The tyre - making machine of the parent Specification is now provided with rollers arranged to prevent the bead wires being pulled out of plane adjacent the fabric-winding zone. As shown, a pair of flanged rollers m, n is mounted on spindles o, p in brackets q, r bolted to the face-plate j which carries the gear h for operating the fabric-supply spool e. Means (not shown) may be provided for displacing the rollers, automatically or otherwise, to facilitate assembly of the wires c, d on the drums a, b and the passage of the leading edge of the built-up casing.
Patent GB-195706-A (GB)
Title: Improvements in kitchen and like boilers
IPC: F24B1/183
Filed: 1921-12-24
Abstract: 195,706. Fildes, T. S. Dec. 24, 1921. Block-form boilers.-A kitchen range or like boiler stated to be of the usual proportions in height and width is provided with a recess a along its lower front face, the upper part b being inclined backwards. In the modification shown in Fig. 5, two longitudinal recesses a<1>, a<2> are used. Reference has been directed by the Comptroller to Specifications 1812/03, [Class 126, Stoves &c.], and 159,234.
Patent GB-850394-A (GB)
Title: Process for the preparation of acetanilide derivatives
Inventor: OXLEY PETER
IPC: C07C233/16
Filed: 1957-11-08
Abstract: Dichloroacet-4-hydroxy-N-methylanilide and its carboxylic esters <FORM:0850394/IV(b)/1> where R1 is a hydrogen atom or an acyl radical are prepared by methylating a compound of the general formula: <FORM:0850394/IV(b)/2> where R3O- may be identical with the ester group above or R3 may be a group readily removable by hydrolysis, e.g. a tetrahydropyranyl group, and -N=Y represents the group -NHR4 wherein R4 is a formyl, acetyl or a dichloracetyl group, or -N=Y represents -N=CHR5 wherein R5 represents a phenyl radical or a substituted phenyl radical, the methylated product is then hydrolysed, except in the case where -N=Y represents -NHCOCl2, whereby there is obtained R3O PhNMeH from which the desired compound is obtained if necessary, by dichloracetylation and/or hydrolysis. Example 1 describes the preparation of 4-(dichloroacet-N-methylamido) phenyl benzoate.  The starting-material is p-aminophenol which is treated with chloral cyanohydrin or with dichloroacetyl chloride to produce p-dichloro-acetamidophenol, this is then converted by means of benzoyl chloride into 4-dichloro acetamido phenyl benzoate, which is converted into the desired product by methylation with methyl iodide in the presence of potassium hydroxide or with dimethyl sulphate in the presence of potassium carbonate.  In example 2, the product of example 1 is hydrolysed, by two methods, to give dichloroacet-4-hydroxy-N-methylanilide.  In example 6, dichloroacet-4-hydroxy-N-methylanilide is obtained by a similar series of reactions except that, in the second step, p-dichloroacetamidiophenol, instead of being converted into the benzoate, is reacted with dihydropyran to give dichloroacet-4-(21-tetrahydro-pyranyloxy)-anilide.  In example 5, p-aminophenol is condensed with benzaldehyde to obtain 4-benzylidene-aminophenol, which is then acetylated with acetic anhydride.  The 4-benzylideneaminophenyl acetate so obtained is heated with dimethyl sulphate, and the cooled product is treated with water and allowed to decompose overnight.  The solution is next treated with excess of sodium bicarbonate whereupon 4-methylaminophenyl acetate separates as an oil, which is extracted with benzene.  Finally, the 4-methylaminophenyl acetate is reacted with dichloroacetyl chloride to obtain 4-(dichloroacet-N-methylamido) phenyl acetate.  In example 7, p-aminophenol is reacted with formic acid to obtain p-hydroxyformanilide, which is treated with benzoyl chloride to give 4-formamidophenyl benzoate.  Methylation of the latter yields 4-(formo-N-methylamido) phenylbenzoate, which is hydrolysed with N-HCl to give 4-methylaminophenyl benzoate.  In example 8, the product of example 7 is treated with dichloro acetyl chloride to obtain 4-(dichloroacet-N-methylamido) phenyl benzoate. In example 9, 4-methylaminophenyl benzoate is hydrolysed with 5 N-H2SO4 to obtain 4-methylaminophenol sulphate, which is dichloroacetylated to yield dichloroacet-4-hydroxy-N-methylanilide. Specifications 767,148, 788,806, and 794,762 are referred to.