baber/WOPTO huggingface dataset:
Patent GB-401521-A (GB)
Title: A process for producing pressed shaped pieces of hard metal
IPC: B22F3/04
Filed: 1933-01-05
Abstract: 401,521. Obtaining coherent masses from powdered metals. WOLFRAM & MOLYBDAEN AKT.-GES., 7, Bleicherweg, Zurich, Switzerland. Jan. 5, 1933, No. 410. Convention date, July 9, 1932. [Class 82 (i).] In a process for producing firm shaped pieces by pressing powdered hard metal, such as a mixture of a hard carbide and a metal of lower melting point, pressure is applied on all sides during the pressing, and shaping is effected immediately after the pressing. The powder is placed in a rubber hose A enclosed in a perforated iron tube C, the ends of the hose being plugged after filling. A number of the filled tubes are subjected to pressure in a pressure cylinder containing water. The shaped pieces are highly sintered for example, by slowly feeding them into a furnace to obtain a slowly increasing temperature, or by sintering after a preliminary heating at a lower temperature.
Patent GB-463995-A (GB)
Title: Improvements in and relating to abrading machines
IPC: B24B37/08
Filed: 1936-01-06
Abstract: 463,995. Abrading-machines. TRIGGS, W. W. (Norton Co.) Jan. 6, 1936, No. 428. [Class 60] In an abrading-machine comprising one or more discs having flat abrading or lapping surfaces, a work carriage, and means for causing an approaching movement between the discs and the work, the abrasion of the work to a predetermined extent causes the completion of the circuit to a relay which after a predetermined time stops the abrading action. In the apparatus shown a number of work-pieces 40 mounted in a cage 41 are rotated and revolved by the mechanism described in Specification 254,919, [Class 60], between a lower abrading disc 11 rotating in the base 10 and an upper abrading disc 14 rotating in a slide 16 which is movable vertically on an extension 13 of the base 10. The discs 11, 14 are rotated in opposite directions by an electric motor 50 through a clutch 56 controlled by a hand lever 57. The slide 16 is operable by a shaft 25 through worm gearing 23, 24 and rack and pinion gearing 20, 21. The shaft 25 may be rotated either by a hand wheel 30 or through a centrifugal clutch 37 by a reversible electric motor 32 controlled by a switch 38. Movement of the switch lever 39 to the position 39b causes the disc 14 to be lowered into contact with the work, when an adjustable stop 80 engages a lever 75 and restores the lever 39 to the neutral position. The slide is then lowered by turning the hand wheel 30, the worm 24 which is mounted between springs 26, 27 moving axially on the shaft 25 to give the desired pressure which is indicated on a dial 85. When the abrading action has proceeded to a predetermined extent a plunger 91 on the slide engages a fixed stop 95 and operates a lever 113 to separate contacts 115, 116 in the circuit of an electromagnet 140. A member 141 is thereby released to complete the circuit to a relay 142 which after a predetermined time energizes a solenoid 143 and thereby closes the circuits of solenoids 144, 145. The solenoid 144 operates to move the switch lever 39 to its upper position 39a causing the slide 16 to move upwards until a stop 81 swings the lever into its neutral position and the solenoid 145 operates the lever 57 to disengage the clutch 56. The circuit of the electromagnet 140 is supplied with low tension direct current from a transformer 126 through a rectifier 127. The transformer circuit is controlled by a mercury switch 130 which is opened by an adjustable stop 134 on the slide 16 as the slide moves upwards. The plunger 91 is mounted in an adjustable sleeve 100 carrying a dial indicator 90 operated by the plunger. Specifications 338,317, [Class 60], 363,695, and 421,568, also are referred to.
Patent GB-554694-A (GB)
Title: Improvements relating to colour photography
IPC: G03C7/00
Filed: 1942-01-13
Abstract: 554,694. Colour photography. COOTE, H. E. Jan. 13, 1942, No. 475. [Class 98 (ii)] Separate colour records are obtained, from latent image records made in two emulsion layers directly and inseparably superimposed on one side of a support, by developing and fixing the layers, bleaching both the silver images as in a ferricyanide-bromide bath, redeveloping the image in the layer remote from the support as by using a loaded developer and stop bath, placing the negative against a black background so that the still-bleached image next to the support is outermost, photographing this image in reflected light to yield after ordinary development, and fixing a separation negative of the bleached image, and finally fixing out the photographed image from the two-layer material, leaving behind the second separation negative. If the original has latent records in three or more superimposed layers, separation records of all the images may be obtained by repetition of the procedure. The two layer material may be one element of a bipack for tricolour work. Formulae are given for a ferricyanide-bromide bleach bath, a loaded hydroquinone developer containing sodium sulphite, sodium hydroxide and glycerin, and a stop bath containing sodium bisulphite and glacial acetic acid. Reference is made to Specification 505,861 and U.S.A. Specification 1,956,274.
Patent GB-738025-A (GB)
Title: Improvements in or relating to the extraction of sugar beet sections
IPC: C13B10/10
Filed: 1953-01-07
Abstract: 738,025. Extracting beet sections. BREDT, G., LANGEN, E. G. VON, and LOESSL, O. VON, [trading as PFEIFER & LANGEN KOLN], and BRAUNSCHWEIGISCHE MASCHINENBAUANSTALT. Jan. 7, 1953 [Jan. 7,1952; March 22, 1952], No. 518/53. Class 127. Juice obtained by extracting sugar beet sections with water in a vertical diffusion tower is enriched by continually withdrawing juice from the lower part of the diffusion tower and mixing it with the sections to be extracted; the mixture is pumped to the tower, and, before the mixture enters the tower, a quantity of juice corresponding to the quantity of fresh water introduced into the tower is separated and is employed for pre-heating fresh sections, whereafter it is further treated for sugar production. The apparatus of Fig. 1 comprises a diffusion tower 1 to which sections to be extracted are pumped together with juice by a pipe 14 from a mixing vat 12 and in which the sections are moved countercurrent to water introduced at 9, a pipe 21 for delivery of juice from the lower part of the tower by way of a separator 17 to the vat 12, and, above the diffusion tower, an apparatus 15 wherewith a part of the juice of the mixture pumped from the vat 12 into an entry shoot 5 of the tower is separated and delivered by way of a pipe 16, the separator 17 and a pipe 22 on to a conveyer 23 to pre-heat sections being delivered to the vat 12. The apparatus of Fig. 2 comprises a diffusion tower 1 to which sections to be extracted are pumped together with juice by a pipe 14 from a mixing vat 12 and in which the sections are moved in countercurrent to water introduced at 9, a pipe 21 for delivery of juice from the lower part of the tower by way of a separator 17 to the vat 12, and, in the lower part of the diffusion tower, a screen 42 over a worm 41 wherewith a part of the juice is separated for delivery by way of a pipe 16, the separator 17 and a pipe 22 on to a conveyer 23 to pre-heat sections being delivered to the vat 12. With both the apparatus of Fig. 1 and Fig, 2, juice delivered by the pipe 16 may be heated at 36 before reaching the conveyer 23 and juice delivered by the pipe 21 may be heated at 38 before reaching the vat 12; juice draining at 34 from the sections on the conveyer 23 is delivered for further treatment.
Patent GB-1338753-A (GB)
Title: Multimode antenna
IPC: H01Q25/00
Filed: 1972-01-06
Abstract: 1338753 Aerials INTERNATIONAL STANDARD ELECTRIC CORP 6 Jan 1972 [12 Jan 1971] 590/72 Heading H4A An omnidirectional aerial which can operate simultaneously with vertically polarized waves and with circularly polarized waves has a vertical axis along which are disposed a disc 17 and, below said disc, four radial arms 1, 2, 3, 4, said arms being angularly spaced at 90 degrees intervals. A circular coaxial member 5 provides physical and electrical connection means for the arms, portions of which are bent downwards at an angle of less than 90 degrees. Each pair of oppositely disposed arms constitutes a dipole, and when said dipoles are respectively fed with orthogonally phased energies they operate as a turnstile aerial, from which circularly polarized waves are emitted. The disc 17 and the arms 1, 2, 3, 4 together constitute a discone aerial, which when fed with energy emits vertically polarized waves. As described, the disc 17 is supported on a cylinder 9, inside which there rises a coaxial feed-line 18 to a power divider or adder 19. Coaxial lines 20, 21 extend from said divider, their centre conductors 22, 23 being taken through holes in the disc 17 to respective feed points on oppositely disposed arms 1 and 3, and their outer conductors being connected to said disc. The coaxial line 18 has a characteristic impedance of 50 ohms, and each of the coaxial lines 20, 21 has a characteristic impedance of 100 ohms and is a quarter-wave in length at the mean frequency of operation of the discone aerial. The turnstile aerial is fed from the output ports of a quadrature hybrid 12 by coaxial lines 6, 7 each having a first portion 8 extending upwardly towards adjacent arms 1, 4, respectively, substantially parallel to the cylinder 9, and a second portion 10 coupled to, and extending substantially at right angles to the portion 8, within said arms. The centre conductors 11 of the portions 10 are electrically connected to the circular member 5. To prevent distortion of the radiation pattern owing to excitation of the cylinder 9, R.F. chokes are provided under each arm by means of radial bars which extend from the said cylinder to the outer conductors of the coaxial lines 6, 7, in the cases of the arms 1, 4, or to vertical bars simulating said outer conductors, in the cases of the arms 2, 3. The radial bars are disposed a quarter-wave below the arms at the mean frequency of operation of the discone aerial. In another embodiment (Figs. 4, 5, not shown) the power divider or adder is disposed below the aerial and three-quarter wavelength coaxial lines extend upwardly therefrom to the disc. Coaxial feed lines for the turnstile aerial enter at the extremities of two adjacent arms, and extend therethrough to the coaxial circular member.
Patent GB-405967-A (GB)
Title: The manufacture of condensation products of the anthracene series
IPC: C09B3/04
Filed: 1932-08-09
Abstract: Methylene anthrone or its nuclear substitution products are condensed in the same way as in the parent case with compounds containing the grouping --CH=CH-- one or more times in an open chain, i.e. aliphatic or aliphatic-aromatic compounds and especially those in which an adjacent position to the above-mentioned grouping is occupied by a carbonyl or aryl group, or with compounds of the above type in which a hydrogen atom of the grouping --CH=CH-- is replaced by a hydroxyl group which may be converted into an ether or ester group, such as vinyl acetate, or with compounds which are capable of being converted under the conditions of the reaction into compounds of the aforesaid type, such as b -chloropropionic acid.  The products are benzanthrone derivatives containing substituents in Bz-1-, Bz-2-, or both positions.  According to examples, methylene anthrone is condensed with (1) maleic anhydride to give bz-1-bz-2-benzanthrone dicarboxylic anhydride; (2) fumaric acid to give bz-2-benzanthrone carboxylic acid, (3) cinnamic acid to give bz-1-phenylbenzanthrone; (4) crotonaldehyde to give a methyl-benzanthrone aldehyde which forms an aldazine with hydrazine hydrate; (5) benzal acetophenone to give a phenyl-benzoyl-benzanthrone; (6) ethyl cinnamic ester to give a phenyl-benzanthrone-carboxylic ethyl ester; (7) styrol to give bz-1-phenyl-benzanthrone; (8) b -chloropropionic acid to give benzanthrone, together with some benzanthrone carboxylic acid; (9) butadiene to give bz-1-bz-1<1>-di-benzanthronyl; (10) methylene-2-chloro or 2-methylanthrone may be condensed with maleic or fumaric acid to give corresponding products.  Other suitable compounds for the condensation are crotonic acid and stilbene. Specification 297,129, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-491958-A (GB)
Title: Improved manufacture of photographic silver halide emulsions
IPC: G03C7/32
Filed: 1937-01-08
Abstract: 4 - Amino - 41 - cyclohexyl - diphenylether is obtained by nitrating the condensation product of diphenyl ether and cyclohexanol and reducing the nitro group.  2 : 4-Diamino-4-cyclohexyl-diphenyl ether is similarly prepared.  1 - Cyclohexyl - 4 - aminobenzene - 5 - sulphonic acid is prepared by nitrating and sulphonating cyclohexyl-benzene and reducing the nitro group.  4 - Amino - 1 - cyclohexylbenzene is prepared similarly omitting the sulphonation.  4 - Cyclohexyl - 1 - benzoic acid is prepared from 4-amino-1-cyclohexylbenzene by saponification of the cyanide obtained by the Sandmeyer reaction.  4 - Cyclohexylbenzaldehyde is obtained from cyclohexyl benzene by the action of carbonmonoxide and hydrochloric acid in the presence of aluminium chloride and cuprous chloride. 1 - Ethyl - 6 - amino - 1 : 2 : 3 : 4 - tetrahydroquinoline is obtained from tetrahydroquinoline by reaction with ethyl iodide, nitrosation and reduction.  Benzoylacetyl - p - cyclohexylanilide is prepared by heating ethyl benzoylacetate with 4 - amino - 1 - cyclohexylbenzene in boiling xylene.  1 - p - (41 - Cyclohexyl - 11 - benzoyl)aminophenyl - 3 - methyl - 5 - pyrazolone is prepared by condensing 1-p-amino-3-methyl-5-pyrazolone with 4-cyclohexyl-1-benzoyl chloride, obtainable by reacting 4-cyclohexyl-1-benzoic acid with thionyl chloride, in pyridine.  2 : 3 - Oxynaphthoyl : 4 : 41 - dicyclohexylanilide is obtained by condensing 2 : 3-oxynaphthoyl chloride with 4 : 41-dicyclohexylaniline in pyridine; 4 : 41 - dicyclohexylaniline is prepared by condensing dicyclohexanol (p-cyclohexylcyclohexanol) with benzene, nitrating, and reducing.
Patent GB-523607-A (GB)
Title: Improvements in or relating to the extraction of bromine
IPC: C01B7/09
Filed: 1939-01-09
Abstract: 523,607. Bromine ; hydrobromic acid. TENNANT, W. J. (Dow Chemical Co.). Jan. 9, 1939, No. 666. [Classes 1 (ii) and 90] In a process for the extraction of bromine from sea-water and other solutions particularly those containing bromine in very small quantities free bromine is released from the bromides present by chlorination or electrolysis and is blown out by an air current from which bromine is absorbed by scrubbing in a tower with sulphur dioxide solution. This produces hydrobromic acid by the reaction Br 2 +SO 2  +2H 2 O# H 2 SO 4 +2HBr. Free bromine is released from this by chlorination and recovered by steam distillation. A flow diagram is given of a continuous process.
Patent GB-290321-A (GB)
Title: Improvements in water cooling towers
IPC: F28F25/02
Filed: 1927-01-10
Abstract: 290,321. Robinson, P. J., and Gueritte, A. T. J. Jan. 10, 1927. Cooling-towers. - The water distributing troughs e are made bodily adjustable to provide for variation of the amount of water discharged through the inner or outer nozzles m<1>, m. The troughs may be hinged at k to the rigid central inlet conduit d and be supported at intervals by cams i<1> operable from a common means by hand or through mechanical or electromechanical devices. The troughs may be counterbalanced by weights j carried by cords from double pulleys t<1> operated by floats k<1> to raise or lower the troughs in accordance with the pond level. The troughs are in communication with sub-troughs. The packing i may consist, of laths set horizontally with their faces progressively inclined to the vertical. In a modification, the troughs are hinged at their outer ends.
Patent GB-753355-A (GB)
Title: Improvements in or relating to endless ribbon feeding devices for shorthand typewriters
Inventor: SEGUI JEAN
IPC: B41J32/02
Filed: 1954-01-11
Abstract: 753,355. Typewriters. STENOTYPE GRANDJEAN. Jan. 11, 1954, No. 779/54. Class 100 (4). An endless ink-ribbon feeding mechanism for attaching to a typewriter comprises a flat case 1 housing an inking roller 2, two guide rollers 8, 10, a spring tensioned swing arm 12 supporting one of the guide rollers, and a stop 15 which engages with the roller 10 to form a lock for the ribbon 16 when the mechanism is removed from the typewriter.- The inking roller 2 is pivotally mounted so that when the mechanism is attached to the typewriter frame 20 the roller 2 engages and is rotated by a hub of a ratchetwheel 4 driven by a pawl 3 mounted on an arm 5 actuated by a link 6 connected to the universal bar of the typewriter.
Patent GB-156764-A (GB)
Title: Device for economizing fuel used for internal combustion engines by the recuperation of exhaust gases therefrom
IPC: F02M25/07
Filed: 1921-01-07
Abstract: 156,764. Chamberland, M. Dec. 16, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Exhaust, dealing with.-An apparatus for purifying exhaust gases comprises annular chambers g, containing broken or powdered coke, surmounted by perforated plates i and a series of nozzles k which discharge into a passage m connected to the engine suction pipe at a point between the carburettor and the engine cylinders. The exhaust gases enter the apparatus through a central perforated passage b containing a throttle valve p. The valve is connected to the carburettor throttle and opens only after the engine has commenced to work under its own power. An outlet r for surplus gases is provided in the casing a.
Patent GB-283500-A (GB)
Title: Improvements in or relating to garment pressing machines
IPC: D06F71/02
Filed: 1928-01-10
Abstract: 283,500. Pantex Pressing Machine, Inc., (Assignees of Beede, H. G.). Jan. 11, 1927, [Convention date]. Ironing-machines with pressing action only.- A garment-press is opened and closed by the operation of toggle levers 17, 30 which are operated by a pair of pedal-operated subsidiary toggles 15, 16. The link 16 is connected to the lever 17 so as to be substantially normal thereto in all positions, and the joint 23 of the subsidiary toggles moves between limits on opposite sides of the line 2'2, 26 joining the pivots of the two pairs of toggles. The lever 15 is counterweighted. The link 30 is adjustably secured in a sleeve 31 pivoted in a recess in a lever 33 pivoted at 34 in the head-support 4. A yielding connection between the lever 33 and support 4 comprises a spring-encircled pin 36 pivoted in the lever 33.
Patent GB-671652-A (GB)
Title: Improvements in or relating to synthesis of hydrocarbons or admixtures thereof with oxygenated hydrocarbons
IPC: C07C29/159
Filed: 1948-01-12
Abstract: Hydrocarbons or mixtures thereof with oxygenated derivatives are produced by passing a feed gas containing hydrogen, carbon monoxide, and carbon dioxide in contact with an iron catalyst at about 500-750 DEG  F. and superatmospheric pressure effective to consume at least 80 per cent of the carbon monoxide, the total feed gas conforming with the equation: loge(K+50) = -0.1548A-0.1075G-0.001512T+ loge 279.8, where K is less than 15, A is the ratio mols. of H2 to mols. of CO, G is the ratio mols. of CO2 to mols. of CO, and T is the absolute temperature.  Net production of CO2 is thus limited to below 15 per cent and CO2 may even be consumed.  The water vapour in the feed should be less than 2 mol. per cent. Preferably K is kept below 5, a negative value corresponding to CO2 consumption, the feed comprises about 8-26 mol. per cent CO, A is about 2-6.5, especially 3-5.5, and G is about 1-5, especially 2-4.  Maximum yield of hydrocarbons of gasoline range is obtained at 600-650.  For example, with iron promoted with alumina and potassium oxide, 625 DEG  F. and 200 p.s.i. is suitable.  Catalyst may be supported on silica or the like.  Tail gas may be recycled, if desired after removal or concentration of constituents.  A multistage process with interstage removal of water or hydrocarbons may be used.  Examples show the yields and CO2 production or consumption with different ratios of H2, CO, and CO2 in the feed, and different temperatures, using a fluidized iron catalyst of 60-400 mesh.
Patent GB-585678-A (GB)
Title: Organometallic compounds containing 1, 3, 5-triazine rings
IPC: C07F9/90
Filed: 1944-01-17
Abstract: Triazine compounds containing antimony are prepared by reacting a 1 : 3 : 5-triazine compound containing at least one halogen atom or at least one -NH2 radical directly linked to a carbon atom of the triazine ring, in the case of a halogen atom with a para-amino-phenyl stibonic acid, and in the case of an -NH2 radical with a para-halogenphenyl stibonic acid.  If the triazine compound contained more than one halogen atom, the resulting compound may be further reacted with ammonia or with an alkyl amine.  The compounds of the invention have the general formula:- <FORM:0585678/IV/1> where Y and Z may be the same or different and represent halogen, amino- or alkylamino.  M represents hydrogen or a salt-forming atom or radical and A and B represent hydrogen or a hydroxyl group.  In examples: (1) sodium p-aminophenyl-stibinate is added to cyanuric acid aqueous solution to form [p-2 : 4-dichloro-1 : 3 : 5-triazinyl-(6)]aminophenyl-stibonic acid; (2) the product of example (1) is treated with 10 per cent ammonia to replace one of the chlorine atoms in the triazine ring by an amino group; (3) the product of example (1) is treated with ammonia under pressure to replace both chlorine atoms in the triazine ring by amino groups; (4) chloro-cyanuric diamide is refluxed with sodium p-aminophenyl stibinate to form p-(2 : 4-diamino-1 : 3 : 5-triazinyl-(6)] aminophenyl stibonic acid; (5) the product of example (1) is treated with methylamine to replace the two chlorine atoms in the triazine ring by methylamino-groups.  Other alkylamines may, if desired, be substituted for methylamine, as also may dialkylamines, hydroxy - alkyl - amines and dialkylamino - alkylamines; (6) the di-sodium salt of p-aminophenyl stibonic acid is treated with cyanuric chloride and the product reacted with aqueous ammonia to give 2 : 4-diamino-1 : 3 : 5-triazinyl-aminophenyl stibonic acid.  It is possible according to the invention to prepare 1 : 3 : 5-triazine-aminophenyl-stibonic acid derivatives containing one or two hydroxyl groups attached to ring carbon atoms of the triazine radical either by corresponding chloro- or amino-substituted triazine aminophenyl-stibonic acids with alkali, or by carrying out the condensation which forms the subject of the invention using as a starting material a hydroxy substituted triazine. Compounds of this type referred to include (2 : 4 - dihydroxy - 1 : 3 : 5 - triazine - (6)) aminophenyl stibonic acid and (2-hydroxy-4-amino - 1 : 3 : 5 - triazine - (6)) aminophenyl stibonic acid.
Patent GB-523631-A (GB)
Title: Device for enabling dressings or plasters mainly comprising products rendered radioactive to be kept at a constant degree of radioactivity
IPC: A61M36/14
Filed: 1939-01-11
Abstract: 523,631. Radioactive plasters &c. KLING- HOFFER, S. Jan. 11, 1939, No. 937. Convention date, Jan. 15, 1938. [Class 81 (ii)] A radioactive plaster or dressing which maintains a constant degree of activity comprises an adhesive fabric 6 on which is mounted a layer 3 of radioactive ointment &c. with the interposition of a layer 4 of a radioactivity stabilizer, i.e. a substance producing emanation at a rate compensating for the disintegration of emanation in the layer 3. The material is protected by a hollow metal cover 1 which is removed before use.