baber/WOPTO huggingface dataset:
Patent GB-569008-A (GB)
Title: Improvements in or relating to process for obtaining alumins, sulphuric acid and potassium sulphate
IPC: C01B17/74
Filed: 1942-11-27
Abstract: 569,008. Alumina; aluminium and potassium sulphates; sulphur dioxide INSTITUTO NACIONAL DE INDUSTRIA. Nov. 27, 1942, No. 16869. Convention date, Nov. 27, 1941. [Classes 1 (ii) and 1 (iii)] A process for the manufacture of alumina, potassium sulphate, and sulphuric acid from alunite ores comprises the following steps : (1) triturating and grinding the ore ; (2) calcining in a muffle furnace with a non-siliceous lining at 750-1250‹ C. to decompose the aluminium sulphate and obtain sulphur dioxide and trioxide ; (3) converting these gases into sulphuric acid (4) extracting potassium sulphate from the calcination residue by washing with hot water, and crystallizing ; (5) treating the insoluble residue of alumina and impurities such as silica and iron with the acid obtained in (3) to give aluminium sulphate which is separated by filtration, evaporated and calcined to yield non-siliceous alumina, and sulphurous gases which are returned to the process. The alumina is purified by the Bayer process and used for the electrolytic production of aluminium.
Patent GB-1457567-A (GB)
Title: Removal of gas from inorganic substances capable of existing in vapour form
IPC: G01N7/14
Filed: 1974-04-17
Abstract: 1457567 Removal of gas from inorganic substances SIEMENS AG 17 April 1974 [24 May 1973] 16870/74 Heading G1B A method of removing gas from a quantity of an inorganic substance, which'is non-gaseous at S.T.P. but capable of existing in vapour form, comprises heating the quantity of the substance in a sample container closed by filter means which, by inhibiting the substance from passing, in vapourized form, from the container into an evacuated extraction space separated from the interior of the container by the filter means, serve to maintain in the container a pressure substantially equal to the saturation vapour pressure of the heated substance, but which allow gas released from the substance as a result of the heating to pass from the sample container into the evacuated extraction space. The filter may be made of porous material such as quartz, ceramic material, porous graphite, aluminium silicate, aluminium oxide, metal, silica or FeNi. The released gas is preferably oxygen, hydrogen or nitrogen and the inorganic substance may be arsenic, antimony, bismuth, selenium, tellurium, lead, or an A III  B V  compound, such as gallium arsenide, indium arsenide or indium antimonide. Apparatus for use in the above method comprises a sample container 6, 7 for holding the quantity of inorganic substance, means for heating the substance in the sample container to release gas from the substance, and an evacuable extraction space 10, the sample container being provided with filter means 8 adapted to close the container so as to separate its interior from the extraction space and, by inhibiting the substance from passing, when so heated, in vapourized form from the container into the extraction space while the latter is evacuated, maintain in the container a pressure substantially equal to the saturation vapour pressure of the heated substance, but so as to allow gas released from the heated substance to pass from the sample container into the extraction space.
Patent GB-497709-A (GB)
Title: Application of base exchangers as additional products to soils and fertilizers
IPC: C05F11/00
Filed: 1937-06-18
Abstract: A phosphate fertilizer is obtained by subjecting mineral or vegetable organic carbonaceous material to an activation process, washing the product and mixing the washed product with rock phosphate, whereby in the presence of moisture, the insoluble phosphate is solubilized. The activation processes consist in imparting base and/or hydrogen ion exchange properties to the carbonaceous material by treatment with concentrated acids, oxidation in an acid or an alkaline medium, electrochemical oxidation or a treatment including the consecutive application of two or more of these processes.  Potassium nitrate or other fertilizer may also be added to the product.  According to an example, granular lignite is treated with a mixture of sulphuric and fuming sulphuric acid containing sodium chromate at 150 DEG  C. The product is cooled, thrown into excess of water, and washed with water until neutral.  After drying, the product is mixed with crude rock phosphate and a solution of potassium nitrate. Specification 497,708 is referred to.  The Specification as open to inspection under Sect. 91 comprises also a fertilizer comprising a mixture of a water insoluble base and/or hydrogen ion exchange product obtained from organic carbonaceous materials with potassium nitrate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-801039-A (GB)
Title: Improvements in or relating to welding metals using an inert-gas-shielded arc
IPC: B23K9/23
Filed: 1955-06-13
Abstract: Electrodes consisting of 5.2 per cent Mg, 0.1 per cent Mn, 0.1 per cent Cr, balance Al and 5.2 per cent Mg, 0.1 per cent Mn, balance Al are used to weld Al alloys containing 4.6 per cent Mg, 0.75 per cent Mn and 4.5 per cent Mg, 0.7 per cent Mn, respectively in an arc welding process (see Group XXII).
Patent GB-624295-A (GB)
Title: Improvements in or relating to electric secret signalling systems
IPC: H04K1/02
Filed: 1947-06-27
Abstract: 624,295. Radio signalling. WESTERN ELECTRIC CO., Inc. June 27, 1947, No. 17022. Convention date, Aug. 20,1946. [Class 40 (v)] [Also in Group XXXIX] In a secret signalling system, a subcarrier, intermittently switched between two values of frequency, is modulated; the upper side-band of one frequency and the lower sideband of the second frequency are selected for alternate transmission as the apparent lower or upper sideband of that sub-carrier frequency which is not being concurrently modulated. One sub-carrier, generated at 48, is applied by relay 45 to the modulator 14 where it is modulated by signals that are limited by a low-pass filter 13 to a band of 250 to 3000 cycles per second. The upper sideband only is passed by a band-pass filter 15 to the transmitter modulator 60. A second subcarrier, generated at 49, is connected by relay 46 to the output of filter 15, the frequencies of the sub-carriers 48, 49 being so arranged that the upper sideband of the one coincides with the lower sideband of the other, thus the output of filter 15, i.e. the upper sideband of 48, appears as the lower sideband of 49, but the range of modulation frequencies is inverted. Relays 45, 46 change over the relative positions of the two sub-carriers at a frequency, e.g. four cycles per second, determined by a crystal oscillator 40 feeding a frequency-dividing circuit 42 through a phase-shifter 41. At the receiver, the demodulated output of a receiver 26 is applied to a band-pass filter 27, corresponding to filter 15, and to a further demodulator 28 to which the correct sub-carrier is supplied by relay 47. This relay is changed over at the same rate as the transmitter relays by the oscillator 40 feeding a frequency-dividing circuit 44 through a variable phase-shifter 43 which enables the receiver to be synchronized. Telegraph signals may be transmitted simultaneously on sub-carriers respectively above the upper and below the lower of the two original sub-carriers.
Patent GB-1003478-A (GB)
Title: 8-hydroxy-quinoline derivatives
IPC: A23K20/132
Filed: 1963-05-06
Abstract: The invention comprises quinolyl-8-oxyacetic acid derivatives of the general formula <FORM:1003478/C2/1> wherein R represents hydrogen or an alkyl group of 1-5 carbon atoms, X and Y independently represent alkyl groups of 1-3 carbon atoms, aralkyl, carboxylic acyl, nitro, amino or acylamino groups or halogen atoms, Z represents hydrogen, an alkyl group of 1-3 carbon atoms, an aralkyl or carboxylic acyl group or halogen and m and n are independently 0 or 1 and when Z is hydrogen or halogen at least one of m and n is 1 and X is not bromine, and the non-toxic acid addition salts of the compounds where R is an alkyl group.  The compounds are prepared by reacting a compound of the formula <FORM:1003478/C2/2> wherein M is hydrogen, alkali metal or alkaline earth metal, with a compound <FORM:1003478/C2/3> wherein R is an alkyl group having 1-5 carbon atoms and Q represents a reactive substituent which can be split off as an anion, and if desired saponifying the resulting esters or converting them to their acid addition salts. Suitable values for Q are halogen and aromatic sulphonyloxy radicals.  Values for X and Y illustrated in the examples are hydrogen methyl, ethyl, nitro, amino, acetamido, chloroand bromo and for Z hydrogen methyl, aceto, chloro, bromo, butyro, benzyl and benzoyl. The compounds of the invention are growth stimulators and are used in animal feeds (see Specification 1,003,477, Division A2).
Patent GB-978443-A (GB)
Title: Braking device for falling objects
IPC: F16F7/12
Filed: 1962-05-04
Abstract: 978,443. Non-frictional brakes. GROUPEMENT ATOMIQUE ALSACIENNE ATLANTIQUE. May 4, 1962 [May 5, 1961], No. 17328/62. Heading F2E. [Also in Division G6] A device for braking falling objects comprises a cylindrical sleeve element made of easily deformable metal into which is insertable by deformation of the sleeve a cylindrical element, the outside diameter of which is greater than the inside diameter of the sleeve, one of the elements being movable in response to the dropping of an object and the other being fixed. The cylindrical element may be constructed on the object or separately therefrom. As shown, the sleeve comprises tubular elements 1, 1<SP>1</SP> of light metal, e.g. aluminium fixed to liners 2, 3 also of light metal and is inserted in a nuclear reactor casing 4 which rests upon a flange 5 capping a pointed foot 6 supported by the structure of the reactor. The upper part 1a of the element 1 is flared to receive the lower end of the control rod 7 which has a conical chamfer 8. If the suspension means of the control rod 7 should break, the latter would first engage the flared part 1a and then drive into the element 1, pushing out its sides until the work performed had dissipated its kinetic energy.
Patent GB-182127-A (GB)
Title: Improved firing regulator for automatic fire-arms
IPC: F41A19/03
Filed: 1922-02-20
Abstract: 182,127. Sutter, C. March 25, 1921, [Convention date]. Machine guns.-Relates to automatic guns in which the speed of discharge is regulated by a mechanism which arrests the rearward movement of the reciprocating breech-block or motor piston, delays its return for a predetermined length of time and then releases it for return to the firing position. According to the invention, the delaying mechanism comprises an escapement device which checks the unwinding of a spring wound by the rearward movement of the reciprocating member. Figs. 2 and 2<a> show a sectional elevation of the gun with the motor piston J and breech-block K in the firing piston. The trigger Q and sear S, Fig. 2, are mounted on a common axis pin q<2> and are locked against movement by the arm q<5> of a safety lever q<4>, which is released when the gunner grasps the pistol grip n<2>. The safety lever and sear are controlled by a single spring q<6> arranged between them. A vibrator r<10> worked by an escapement, Fig. 11, is used to regulate the speed or firing. The piston J engages near the end of its rearward movement a lever r<3> to wind a spring r' which, when the lever enters a recess in the piston, reacts to rotate a gear r<1> and through a wheel r<12> and one-way clutch teeth r<22>, Fig 11, to rotate a wheel r<14>. This wheel has teeth to engage two teeth r<11> on the vibrator r<10> which is designed to give a predetermined rate of fire. The motor piston is retained in rearward position by a lever 0, and end o<1> of which engages a recess j<11> in the underside of the piston, the other end o<4> engaging a cam surface r<3> on the gear r<1>. The engagement of the arm s<2> of the sear s with a notch r<6> in the gear r' prevents firing until the trigger is pulled, when firing is effected by the spring r<2> which rotates the gear r<1> to release the lever O. The firing mechanism is carried in a casing R detachably engaging the stock carrier I and r and retained by the trigger pin g<2>. The cartridge-feed lever P is detachably mounted beneath the hinged top cover G or, a vertical pivot p' and an horizontal pivot p<3>. The lever has a projection p' engaging a groove in the upper part of the breech-block to reciprocate the lever in a transverse plane about its pivot p<9> and cause a projection p<2> to feed the cartridge strip in the feed box F. When the strip is exhausted and ejected, the lever P is moved about its pivot p<3> by a spring p<5> to permit the projection p<1> to hold the breech-block open.
Patent GB-1472711-A (GB)
Title: Apparatus for moving items of food without hand contact
IPC: A47J43/28
Filed: 1976-03-26
Abstract: 1472711 Picking-up tool A R CORNELL Ltd 26 March 1976 [26 April 1975] 17410/75 Heading B4W Apparatus for moving items of food without hand contact comprises a housing 2 for placing over an item of food, manually extendible lance means 6 having at least one prong 8 for spiking the item of food and biasing means 28 for biasing the lance to a position in which the said prong is withdrawn into the housing. The housing may be of elongate channel form or of flat plate form and may provide a knife edge and/or fork prongs (Figs. 2-4, not shown).
Patent GB-943902-A (GB)
Title: Relief valves
Inventor: WILLIAMS ARTHUR JAMES
IPC: F16K17/04
Filed: 1962-05-07
Abstract: 943,902. Valves. COMMERCIAL SHEARING & STAMPING CO. May 7, 1962, No. 17417/62. Heading F2V. A pressure relief valve comprises a housing 10 having an inlet 11 and an outlet 13 and housing a valve comprising a hollow poppet 23 having a flange 24 to allow limited axial movement of the poppet between a shoulder 19 and a ring 25. A seating member 28, loaded by a spring 31 is formed with a sloping seating surface 29 for cooperation with the end of the poppet member. A piston 36 sealingly engages the inner surface of the seating member 28. The seating and poppet are normally in the position shown but as the inlet pressure rises it acts on the flange 24 to raise the poppet and seating together until the flange engages the shoulder 19 after which the seating rises due to pressure acting on the sloping surface 29. The sloping surface causes the fluid to change its direction of flow through more than 90 degrees and assists the further opening of the valve. In a modification, an orificed portion is provided across the seating 28 adjacent the sloping surface to provide a chamber between the partition and the piston to prevent chattering and dampen movements of the seating member.
Patent GB-1071456-A (GB)
Title: Improvements in manufacture of internally finned tubes
IPC: B21C37/20
Filed: 1965-04-26
Abstract: 1,071,456. Making finned tubes; rolling; drawing tubes. ANACONDA AMERICAN BRASS CO. April 26, 1965 [May 7, 1964], No. 17432/65. Headings B3A, B3M and B3P. An internally-finned metal tube is produced by drawing a tubular member 11, together with an externally finned mandrel 10, through a drawing die 17, the wall thickness of the member 11 being reduced and the profile of the inside of the tube conforming with that of the mandrel. To release the member from the mandrel, a ring (20) (Fig. 4, not shown), is rotated around the member so that rollers 22 mounted freely on the ring reduce the wall thickness slightly and thus radially expand the member. An elongation of the member 11 during drawing to three times its original length is obtainable.
Patent GB-495489-A (GB)
Title: Improvements in or relating to aerials and feeder systems
IPC: H01Q9/38
Filed: 1937-06-23
Abstract: 495,489. Wireless signalling. CORK, E. C., and PAWSEY, J. L. June 23, 1937, No. 17436. [Class 40 (v)] In order to attenuate undesired signals on the outside of a feeder 2, supplying a transmitting aerial 1, an auxiliary conductor 7 is connected between the end A of the feeder and a point B thereon at a distance l from the end A, said conductor 7 being of length l+#/2 and bent as shown to lie on one side of the main feeder, # being the wavelength of the undesired signals. Distortion of the directional diagram of the aerial may be avoided by the provision of a similar auxiliary conductor on the opposite side of the feeder 2. Further attenuation of undesired signals is produced by the quarter wave conductors 3 ... 6 extending in mutually perpendicular pairs from the points A, B of the feeder 2. The auxiliary conductor 7 may alternatively take a zigzag form extending on both sides of the main feeder, Fig. 2 (not shown), or surround the main feeder in the form of a helix, Fig. 3 (not shown). Specification 438,506 is referred to.
Patent GB-578350-A (GB)
Title: Improvements in or relating to oil-burning devices or appliances
IPC: F23D5/00
Filed: 1944-09-13
Abstract: 578,350. Liquid-fuel burners. ORTT, W. H. D'. Sept. 13, 1944, No. 17454. [Class 75 (i)] Paraffin or waste oil is fed through a pipe m to an asbestos-covered sheet metal dome k supported above an asbestos-covered metal disc c by a distance sleeve j, the parts being secured by a bolt h and disc d to a bar c arranged across an open-ended sheet-metal cylinder a. The fuel burns at the dome k and disc e with air passing upwards through the cylinder. In modifications the dome k and disc e may be composed wholly of asbestos and the fuel may be fed upwards through a tubular bolt h to overflow on to the dome k.
Patent GB-875178-A (GB)
Title: Stopper for a ladle or similar receptacle for molten steel or the like
IPC: B22D41/16
Filed: 1959-05-22
Abstract: 875,178. Stud and socket fastenings. VESUVIUS CRUCIBLE CO. May 22, 1959 [Sept. 8, 1958], No. 17474/59. Class 44. A stopper for a ladle for molten metal includes a refactory head 2 having a well 4 extending downwardly for receiving a rod 15, having a lateral projection 17 at its bottom end positionable by downward insertion in the well and locking means being applicable to the head and rod to overlie at least a portion of the lateral projection to block withdrawal of the rod from the well whereby to attach the rod to the head, the locking means being the sole means overlying the lateral projection. As shown, the locking means consists of a lugged insert ring 9 lugs 10 of which are engageable beneath shoulders 12 in portions of the well 4 upon rotation of the ring through 90 degrees, and locking members 14 which are dropped into the portions of the ring to prevent rotation of the ring back to its initial position. In another construction, Fig. 6 (not shown), the locking means is constituted by an externally threaded collar, which may be split, and which surrounds the rod 15 and is screwed into the well of the stopper to overly the lateral projection.
Patent GB-1205958-A (GB)
Title: A novel substituted 1-phenoxy-2-aminopropane
IPC: A61K31/135
Filed: 1967-09-15
Abstract: 1,205,958. 2 - Amino - 1 - (2,6 - xylyloxy)- propane. BOEHRINGER INGELHEIM G.m.b.H. 15 Sept., 1967 [16 Sept., 1966], No. 17474/70. Divided out of 1,205,956. Heading C2C. [Also in Division A5] The invention comprises the title compound in racemic or optically active form, and its physiologically compatible acid addition salts. It is prepared by (a) removing the protecting groups from, e.g. the N-benzyl, phthalyl, toluenesulphonyl or formyl derivatives, (b) reacting 2,6-xylenol (or its phenoxide) with XCH 2 (NH 2 )CHMe (where X is a reactive ester substituent) or 2-methylaziridine, or (c) reducing the corresponding imine, oxime or hydrazone. The racemate may be resolved using D - 3 - bromocamphor - 8 - sulphonic acid or dibenzoyl-D-tartaric acid.
Patent GB-714121-A (GB)
Title: Improvements in compounding elastomers
IPC: C08K9/06
Filed: 1952-07-11
Abstract: A vulcanizate comprises an elastomer, a filler selected from silica, calcium silicate and kaolin and having an average particle size not greater than 10 microns and a degree of hydration corresponding to not less than 0.02 gram of moisture per 100 square metres of surface area, and an organohalosilane-polyhydric alcohol reaction product reacted chemically with the filler and in amount up to 10 per cent. by weight based on the filler, the organohalosilane having the formula R1nSiX4-n where n is 1, 2 or 3, R a hydrocarbon radical and X is chlorine bromine or iodine, the elastomer excluding butyl rubber when the organohalosilane is any of vinyl, alkyl and butenyl chlorosilanes.  Specific elastomers are butyl rubber, butadiene-styrene copolymer, and butadiene-acrylonitrile copolymer. The usual vulcanizing agent may also be present.
Patent GB-1179296-A (GB)
Title: Improvements in or relating to Safety Stopper for Pharmaceutical Bottles and Flasks.
Inventor: STEINER MAURICE
IPC: B65D50/04
Filed: 1967-04-17
Abstract: 1,179,296. Caps for bottles. M. STEINER. 17 April, 1967 [18 April, 1966], No. 17515/67. Heading B8T. An internally screw-threaded safety cap for a bottle has a skirt including a portion deformable parallel to the axis of the cap and carrying on its inside a screw-thread segment aligned with the main screw-thread only when the portion has been deformed axially. As shown, a resilient plastics cap I has main internal screw-threads 3 which are engaged with the usual threads around a bottle neck. The lower ends or segments 11 of the threads 3 are formed on two diametrically opposite strips 5 around the cap skirt 4. In the unstressed normal condition of the strips 5, the thread portions 11 are offset by half-a-pitch from the main thread portions 3. Thus when the cap 1 has been screwed home on the bottle neck, the end threads 11 latch beneath the screw-thread around the bottle neck and prevent its being unscrewed. When the bottle is to be opened, lugs 8 are raised by two fingers of the operator, and stretching the strips 5, and aligning the thread segments 11 with the main screw-threads 3. The cap may then be readily rotated. Initial removal of the cap 1 is prevented by an obstructer plug having the same shape as and inserted in one of two recesses 10 above lugs 9 on the strips 5 carrying the threads 11. The obstructer plug has a tab by which it is torn out, to permit raising of the associated lug 8 for opening the bottle.
Patent GB-770263-A (GB)
Title: Process for the manufacture of acetoacetamides
IPC: C07C231/00
Filed: 1955-06-17
Abstract: Aryl acetoacetamides are prepared by reacting water-insoluble aromatic primary amines with diketene at ordinary or moderately raised temperatures, the amino-compound being used in the form of a salt thereof with an organic or inorganic acid, the salt being dissolved in water, if desired.  The reaction may be carried out by adding diketone gradually to an aqueous solution of amine salt or to a solution of the amine in a liquid acid such as acetic acid.  The acetoacetamide separates during the reaction and may be removed by filtration, the mother liquor being re-used, if desired.  Specified amines are aniline, o-toluidine, and o-chloroaniline.  Specified acids are acetic, hydrochloric and sulphuric acids.  In examples: (1) diketene is added slowly to a solution of aniline in aqueous acetic acid, the temperature being maintained at about 45 DEG  C., the solution is cooled and the crystalline acetoacetanilide removed by filtration; (2) part of a batch of aniline is dissolved in a slight excess of acetic acid diluted with water and reacted with diketene as in (1), further aniline is added to the reaction mixture and reacted with diketene, the process being continued until the whole batch of aniline has been reacted; (3) as in (2) but not adding water.