baber/WOPTO huggingface dataset:
Patent GB-446842-A (GB)
Title: Improvements in or relating to buffers for railway and like vehicles
IPC: B61G11/10
Filed: 1934-12-04
Abstract: 446,842. Buffers for railway &c. vehicles. TURTON, PLATTS, & CO., Ltd., G., Wincobank, Sheffield, and HEWITT, F., Green Lawn, Green Lane, Dronfield, near Sheffield. Dec. 4, 1934, No. 34838. [Class 103 (v)] Relates to buffers for railway &c. vehicles of the hollow plunger type in which the main shocks are absorbed by springs m located within the casing k, while the final shocks are cushioned and direct contact between the buffer head c and casing prevented by resilient means arranged exteriorly of the plunger i either at the rear of the buffer head or at the forward end of the casing. According to the invention the resilient cushioning means in the form of springs or pads a of rubber or like material are located within a housing and retained in position by a ring d which forms a closure for the housing. In the construction shown the housing for the pads a is formed by providing the buffer head c with an integral rearwardly extending flange b<1>, while the ring d is maintained in position and guided by two attached keys e having lugs g guided within slots h in the casing. Modifications are described in which the housing is constructed as a separate element attached to the buffer head, in which the buffer head is formed separate from but riveted to the plunger, and in which the housing is formed at the forward end of the casing instead of at the rear of the buffer head.
Patent GB-1024979-A (GB)
Title: Improvements in or relating to container closures
Inventor: REMPT LOURENS ASSER
IPC: B65D39/08
Filed: 1963-09-04
Abstract: 1,024,979. Container closures. VAN LEER INDUSTRIES Ltd. Sept. 4, 1964 [Sept. 4, 1963], No. 34927/63. Heading B8T. A container closure comprises a neck 12 having interrupted screw threads 18 and a plug 19, Fig. 2, including a flange portion 20 and a shank portion 21 having screw threads 22 and a groove 23 housing a gasket 24 engageable with a portion 25 of said neck. The neck may be further sealed by a cap 26, Fig. 3, whose lower edge 28 is crimped under a bead 17 on the neck and which has perforated lugs 30 corresponding with perforated lugs 32 on a ring 31 around the neck for the threading of a wire. The neck 12 is either mounted on the container wall 11 as shown or is integral with it. The plug shank may be provided with a cylindrical portion between its screwthreads and the groove, see Fig. 7 (not shown). The neck may be polygonal in section, as described in Specification 860,625, or it may comprise a plurality of separate tongues, as described in Specification 980,084.
Patent GB-1187334-A (GB)
Title: Preparation of Citric Acid by Fermentation
IPC: H04R1/22
Filed: 1968-07-22
Abstract: 1,187,334. Citric acid. KYOWA HAKKO KOGYO K.K. 22 July, 1968 [21 July, 1967], No. 34934/68. Heading C2C. Citric acid and salts thereof are prepared by the cultivation of a fungus of the Aspergillus or Penicillium genus, which is capable of producing citric acid or salts thereof, in a nutrient medium in the presence, as the major carbon source, of a hydrocarbon or hydrocarbon mixture comprising a paraffin, olefin or isoparaffin.
Patent GB-1459211-A (GB)
Title: Active dried yeast
IPC: C12N1/04
Filed: 1973-07-23
Abstract: 1459211 Dried yeast DISTILLERS CO (YEAST) Ltd 16 July 1974 [23 July 1973] 34949/73 Heading A2D [Also in Division C6] Active dried yeast of improved activity (Fermentometer test) is obtained by drying the yeast in intimate admixture with 0.5-3% by weight, based on yeast dry weight, of an additive selected from (1) an ester of a polyglycerol (or mixture of polyglycerols) with saturated fatty acid, particularly palmitic or stearic acids, and (2) ascorbyl palmitate. The ester (1) may be a reaction product containing monoester, di- or higher esters and unreacted free fatty acid. The active dried yeast may be made by spray drying a yeast cream to give a product of 40-50% dry matter and then further drying to 90% or more dry matter in a fluidised bed. Alternatively, a moist compressed yeast of 27-40% dry matter is obtained by filtering and centrifuging yeast cream including the additive, the compressed yeast is comminuted under high shear in a mill and the resulting particles of a diameter of 1.7mm or less are further dried in a fluidised bed. An aqueous suspension of additive (1) or of an ethanolic solution of (2), may be introduced into the yeast cream before drying. The active dried yeast product has satisfactory storage stability when stored over 7 days in nitrogen at 43.3‹C.
Patent GB-906557-A (GB)
Title: Improvements relating to buckles for flexible attachments
IPC: A44B11/24
Filed: 1959-10-15
Abstract: 906,557. Buckles. KEHRER, E. Oct. 15, 1959 [Oct. 31, 1958], No. 34978/59. Class 43. A buckle for a flexible attachment comprises a frame 1 in the central part of which is hinged a tongue 5, the end of which extends over one of the transverse sides of the frame, a hinge bar 13 for one of the ends of the flexible attachment is in proximity to the transverse side of the frame opposite that against which the tongue bears, the free end of the attachment passes through the space between the transverse side of the frame and the pivot of the tongue and is retained beneath the attachment. The tongue extends from a plate 7 pivoting on trunnions engaging in holes in the sides 2 of the frame, the holes being positioned close to the lower surface of the frame. The end of the tongue rests in a recess in the side 4. The bar 13 may be positioned beneath the side 3. The sides 2 may be curved or rectilinear. The tongue may hinge on the sides 2. The bar 13 may be removable.
Patent GB-391722-A (GB)
Title: An improved method of producing voluminous table salt from fused rock salt
IPC: C01D3/22
Filed: 1932-12-10
Abstract: Voluminous table salt is prepared from rock salt by fusing it, allowing the impurities to settle and introducing the melt into water or brine.  The brine is obtained as granules and incrustations and may be brought to the desired form by drying and powdering or by bringing it into contact with warm brine, e.g. in a salt pan which is kept in motion.  To prevent detonation, the surface of the melt entering the water or brine is increased as much as possible, e.g. by supplying it as a thin jet 3-4 mm. in diameter.  The brine to which the salt melt has been added may be transferred to a large collecting vessel in which the salt granules can be converted into common salt with stirring, if necessary, and in which the salt still dissolved crystallizes out on cooling.  The brine after adding, e.g. dilute brine to make up for evaporation, is finally led back to the original vessel.  The salt may be dried by the waste heat from the melting furnace.  To eliminate from the salt calcium sulphate, the brine to which the melt is added is acidified, e.g. with sulphuric or hydrochloric acid; the brine may be regenerated when the dissolved calcium sulphate has become concentrated therein, by adding milk of lime. Brine from salt workings may be used as solvent in the process, and salt obtained therefrom.
Patent GB-487834-A (GB)
Title: Process for the separation of mixtures of volatile inorganic chlorides or/and oxychlorides
IPC: C01B7/00
Filed: 1936-12-22
Abstract: Relates to a process for separating volatile chlorides or oxychlorides, which are capable of reduction at the temperature of volatilization, from chlorides which are not thus capable of reduction.  According to the invention, the mixture is submitted to reduction by charcoal, or hydrogen or a hydrocarbon in the presence of an inert or reducing solid.  The unreduced chloride distils over and the reduced chloride remains, owing to its lower volatility. Inert gas may be added to modify the speed of reaction.  Heated hydrogen may be passed through a mixture of the volatile chlorides. A distilling column lined with porous material and packed with porous baffle material may be used.  In an example, a mixture of ferric chloride and ammonium chloride is heated to 500 DEG  C. in a shaft furnace packed with charcoal. Hydrochloric acid gas is passed through and carries with it the ammonium chloride, the ferrous chloride formed remaining behind. Further examples relate to the treatment of titanium iron ores and to the production of zirconium chloride from Baddeleyite or other iron-containing zirconium ores.  The invention is stated also to be applicable to chlorides or oxychlorides of tin, molybdenum, tungsten, mercury, chromium, silicon, aluminium, tellurium, and bismuth.  The Specification as open to inspection under Sect. 91 also states that the process is applicable to the chlorides of antimony and arsenic.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1322373-A (GB)
Title: Aricraft having two lift producing devices and methods of operating such aircraft
IPC: B64C27/54
Filed: 1970-07-21
Abstract: 1322373 Rigid rotor helicopters UNITED AIRCRAFT CORP 21 July 1970 [7 Aug 1969] 35159/70 Headings B7G and B7W An aircraft has two lift producing rotors 36a, 36b, each having at least three blades, providing balancing roll moments, each rotor (shown only for rotor 36a) having means 12, 24a, 26a for controlling lateral cyclic pitch of the rotor blades so that the lift vector is offset from the rotor axis to act through a position on the advancing blade coupled by a coupling device 16 to means 20 for varying collective pitch of the blades whereby a decrease in collective pitch is accompanied by an inversely proportional increase in lateral cyclic pitch, that is a decrease in pitch of the advancing blade. The blade pitch of each rotor is controlled through respective swash plates 38a, 38b and linkages including coupling device 16, by cyclic control stick 10 and collective control stick 18. Commands from automatic navigation or stabilization equipment may be introduced through servos 22. Coupling device 16 is arranged to allow lateral and longitudinal cyclic pitch control of both rotors in unison to effect pitch and roll movements of the aircraft. In addition rotation of shaft 50 by collective control rod 20 causes all the rods 30, 32, 34 to move in unison to vary the collective pitch of both rotors and also through cranks 54a, 54b imposes differential lateral cyclic pitch control on the two rotors through rods 30a, 32a and 30b, 32b. The aircraft is provided with an auxiliary forward propulsion device such as a a jet engine or pusher propeller and there is a locking device 80 which holds the collective blade pitch at a steady value at high speeds. The invention described relates to coaxial rotors but it may be applied to an aircraft having two rotors laterally offset from each other.
Patent GB-1170914-A (GB)
Title: Improvements in or relating to the Production of Coloured Oxide Coatings on Aluminium and Aluminium Alloys.
Inventor: SAUTTER WERNER
IPC: C25D21/18
Filed: 1968-07-23
Abstract: 1,170,914. Anodizing aluminium. VEREINIGTE ALUMINIUM - WERKE A. G. July 23, 1968 [Aug. 1, 1967], No.35173/68. Heading C7B. An electrolyte used in producing a coloured oxide coating on aluminium metal or alloy is regenerated by adding thereto an alkali metal fluorine compound, e.g. sodium or potassium (hydrogen) fluoride, to precipitate the aluminium dissolved. Typical self-colouring electrolytes consist of H 2 SO 4  and an organic acid such as sulphosalicylic, sulphophthalic, tartaric or maleic acid. To keep the Al content constant between 0À3 and 1 g/ 1 of a bath containing 20% maleic acid and 0À4% H 2 SO 4 , 30% of the bath is removed and treated with 6 g/1 of NaHF 2  in an auxiliary vessel, and after allowing the precipitate to settle returned to the bath.
Patent GB-172527-A (GB)
Title: An improved holder for the license cards of automobile vehicles
IPC: B60R13/10
Filed: 1920-12-14
Abstract: 172,527. Storr, C. E. N., Piccolomini, H. C. Pontet-, and Smyth, H. C. H. Dec. 14, 1920. No Patent granted (Sealing fee not paid). Licence holders for motor vehicles are hinged to a bracket K adapted to be secured to any part of the vehicle, the hinge pin being provided with a clamping-nut h whereby the holder can be set at any required angle. The licence B and its cover glass C are inserted in a tray A which is secured in the holder by a spring wire F. A tang b in the tray prevents displacement of the licence.
Patent GB-973564-A (GB)
Title: A process for the dehydrogenation of hydrocarbons
Inventor: WATTIMENA FREDDY
IPC: B01J23/78
Filed: 1960-10-14
Abstract: Saturated or olefinic aliphatic or cycloaliphatic hydrocarbons are dehydrogenated in the vapour phase in admixture with oxygen and a halogen in the presence of a catalyst comprising one or more alkali or alkaline earth metal compounds, optionally mixed with one or more compounds of transition metals of Group I or IV-VIII and/or rare earth metals, scandium and yttrium, the catalyst having a surface area of at least 1 square metre per gram.  The hydrocarbon is preferably an aliphatic paraffin or olefin having a chain of at least 4 carbon atoms when the product is a diolefin or other polyolefin although dehydrocyclization may also be effected.  Other reactions may accompany the dehydrogenation, e.g. isomerization, dealkylation, coupling, and hydrogen or alkyl exchange. The following conversions are specified, butanes to butenes, n-butane or n-butene to butadiene, pentanes or pentenes to pentadiene, hexane to benzene, n-heptane to toluene, butylcyclohexane to naphthalene, propene to diallyl, and the dehydrogenations of ethane, propane and 2,3-dimethylbutane.  The reaction mixture may contain 0.5-1.5 times the theoretical amount of oxygen required for the conversion, which may be added as air, 0.001-0.1 mole of halogen per mole of hydrocarbon, preferably bromine or iodine added per se or as hydrogen alkyl or metal halide, and 1-10 moles of water per mole of hydrocarbon.  Suitable conditions are 375-1000 DEG  C., 10-1000 vol. of gaseous hydrocarbon per vol. of catalyst per hour and normal or higher or lower pressure.  The catalyst preferably has an atomic ratio of alkali or alkaline earth metal to transition metal of 1-7: 1.  The former, preferably Li, Na, K, Ca, Sr or Ba, may be present at oxide, hydroxide, carbonate, silicate, sulphate or, particularly, halide, the latter, preferably Zr, Ti, V, Cr, Mo, Mn, W, Fe, Co, Ni, Pd, Cu, Ag or the mixture of rare earths known as didymium, may be present as oxide or halide, and the components may be supported on alumina and/or silica using at least 0.80 m.mole per mole of carrier.  If desired the catalyst may be partly or wholly in the form of a melt when supported.  The process of Specification No. 895,500 is disclaimed.  Specification 973,565 is referred to.
Patent GB-354805-A (GB)
Abstract: 354,805. Knitting-machines. HOLMES, H. H., ROBINSON, R. H., and WILDT & CO., Ltd., Adelaide Works, Leicester. April 11, 1930, No. 11604. [Class 74 (ii).] The needles of a machine for forming plated fabrics are bent or flexed, either before they are inserted into the machine or as they are raised by the clearing cam, so that when in position to receive the yarns the needle-receiving ends are out of line with the needle tricks. Thus, in a circular machine, the upper ends of the needles 14 are flexed to a position within the normal needle circle, and in a flat machine the ends are retracted from the plane of the needle tricks. A presser wheel or like may be used for deflecting the needle end. Needle beds with tricks having bottoms curved to conform with the needles may be employed. The inner face of the stitch cam may be cut back to avoid contact with the needle stems, which may possibly flex outwardly. Specifications 320,343 and 332,588, [both in Class 74 (ii), Knitting &c.], are referred to.
Patent GB-1206999-A (GB)
Title: Improvements relating to photographic apparatus
IPC: G03B17/52
Filed: 1968-07-25
Abstract: 1,206,999. Photographic apparatus. INTERNATIONAL POLAROID CORP. July 25, 1968 [July 25, 1967], No.35632/68. Heading G2A. Photographic apparatus as described in Specification 1,207,000 has restraining means mounted adjacent at least one of the rigid members preventing separation of the rigid members and widening of the gap by more than a predetermined distance. An elongated platform 16 has an edge portion 17 forming one of the rigid member and also has elongated body portions 30, 31, each with a flange portion 32, 33, which prevent lateral misalignment of the springs and also limit the distance by which the spring arms may be separated. The body portions may be welded to one of the spring arms.
Patent GB-1438564-A (GB)
Title: Movie cameras
IPC: G03B17/18
Filed: 1973-07-26
Abstract: 1438564 Movie camera indicators PONDER & BEST Inc 26 July 1973 [27 July 1972] 35728/73 Heading G2E A movie film camera has means for producing an audible or visible alert signal indicating that a predetermined running time has elapsed, or that a predetermined point in the film has been reached. As shown, the camera includes a lens assembly 37, view-finder 34 and pistol grip trigger 38. A circuit is provided, Fig. 1 (not shown) which, when the normally closed switch 19 is opened by pressing trigger 38, begins to charge up a timing capacitor (20). The charge time may be varied by a variable resistor (21), and after a predetermined time has elapsed, a transistor (24) is biased "on", so energizing an audio transducer element (25) to produce an audible signal. The operator is thus made aware that the predetermined time has elapsed. At the same time a light-emitting diode 33 is energized, and since this is located in the line of sight of the view-finder, it is observed by the operator without breaking his eye contact with the view-finder. The alerting signal may also be produced when the film has come to the end of the reel, or to the end of a predetermined length, as determined by a counter wheel 40, when a switch 28 is closed to activate the alert signal as before.
Patent GB-1305011-A (GB)
IPC: G01S13/86
Filed: 1958-11-06
Abstract: 1305011 Tracking heat-emitting targets ELTRO GmbH 6 Nov 1968 [6 Nov 1957] 35746/58 Heading H4D In a system for tracking heat or infra-red emitting targets, the target direction is determined from the heat radiations and the range by an associated radar pulse system. As shown, a motor 7 drives the principal reflector 1 of a heat radiation direction-finder, and a reflector 10 of the radar apparatus. An auxiliary reflector 2 of the direction finder is a wobble mirror whose drive means 4 simultaneously actuates contacts 2a, 2b for the rightleft direction finder control. Thus heat-radiation received by a bolometer 3 is used to derive signals which, at the scan limits, are compared to effect the tracking. In the radar apparatus, a range unit 18 is connected to a gating circuit 20 which is enabled for a short time by a unit 8 when a heat signal is received by the directionfinder, the output from the gate 20 being applied to control the repitition rate of the radar trigger pulse generator 24 in accordance with the target range rate. Due to the fact that the tracking system merely receives energy during the tracking operation the system cannot be located. Further, since the radar apparatus produces only short bursts of pulses, its detection is a remote possibility.
Patent GB-1017673-A (GB)
Title: The production of wide film sheets of synthetic thermoplastic material
IPC: B29C65/00
Filed: 1964-09-01
Abstract: 1,017,673. Producing wide flat films. SOC. EDISON. Sept. 1, 1964 [Sept. 2, 1963], No. 35780/64. Heading B5B. Wide film sheet of synthetic thermoplastic material is continuously produced by continuously and progressively bringing into contact with one another along a narrow longitudinallyextending zone two tubular films, continuously and progressively welding the films together along that zone, and either before or after the welding step, continuously slitting one film longitudinally adjacent and parallel to one side of the zone and continuously slitting the other film longitudinally adjacent and parallel to the other side of the zone so that the joined films can be opened out to form a single sheet having a width substantially equal to the sum of the peripheries of the tubular films. Wide flat films may be similarly continuously produced by continuously welding together, slitting and opening out three or more tubular films. The flat films thus produced have a width substantially equal to the sum of the peripheries of all the tubular films.
Patent GB-991178-A (GB)
Title: Improvements in or relating to rotatable rake members
IPC: A01D80/00
Filed: 1961-10-04
Abstract: 991,178. Haymaking machines. C. VAN DER LELY N.V. Oct. 4, 1961 [Oct. 4, 1960], No. 35821/61. Heading A1F. A rotatable rake member comprises a central part 1 and resilient tines each of which has a working part 10 and a connecting portion 5, wound helically on elongated element 3 being connected with the central part 1 so as to extend substantially radially with respect to the axis of rotation of the rake member. The helical portion 5 of each tine'has an extension 6 which is secured in a hole in an adjacent element 3 and is held between two turns of the portion 5 wound on the adjacent element. In Fig. 4 the elongated elements comprise sleeves secured to a felly by means of nuts and bolts. The rake member may also take the form of a rotatable drum.
Patent GB-812475-A (GB)
Title: Improved process for the production of acrylonitrile
Inventor: ROBERTSON NAT CLIFTON
Filed: 1956-11-23
Abstract: Catalysts for the preparation of acrylonitrile by gas-phase reaction of acetylene and hydrogen cyanide comprise a porous inert support carrying or impregnated with 3-15 per cent by weight of an alkali metal hydroxide, cyanide or carbonate.  Charcoal is the preferred support.  The support is preferably deoxygenated, e.g. by heating in a stream of hydrogen at 500-900 DEG  C. before impregnation, e.g. in aqueous solution followed by drying.  It is then preferably pretreated with hydrogen cyanide, e.g. by heating above about 500 DEG C. in a stream of HCN until the recovery of HCN in the off-gases is 80 per cent or more.  The reactor preferably has a reactant-contacting surface of an iron/aluminium alloy.ALSO:Acrylonitrile is prepared by passing acetylene and hydrogen cyanide in the molar ratio of from 0.1 : 1 to less than 1 : 1 over a porous inert support carrying or impregnated with from 3 to 15 per cent by weight of an alkali metal hydroxide, cyanide or carbonate maintained at a temperature of 450 DEG  to 700 DEG  C. Charcoal is the preferred support.  The support is preferably deoxygenated, e.g. by heating in a stream of hydrogen at 500-900 DEG C., before impregnation.  It is then preferably pre-treated with hydrogen cyanide, e.g. above about 500 DEG  C.  The acetylene stream may contain less than about 15 per cent acetylene and be derived from processes such as the "Wulff" and "Sachsse" processes.  The space-velocity of the reactant gases may be from 100 to 1500 hr.-1(STP).  Pressures may vary from atmospheric to about 100 p.s.i. The reactor preferably has a reactant-contacting surface of iron/aluminium alloy.  Examples are given.
Patent GB-339100-A (GB)
Title: Improvements in attachments for connecting the longitudinal, transversal and diagonal elements of the tubular structures used in aeronautical constructions
IPC: B64C1/00
Filed: 1929-11-23
Abstract: 339,100. Caproni, G. Dec. 10, 1928, [Convention date]. framework.-An attachment for connecting together the longitudinal transverse and diagonal elements of tubular structures for aircraft comprises a sleeve, for embracing a longitudinal element, formed by bending one or more sheet metal blames to form a cylindrical shell with one or more radial ribs having lugs for the diagonal elements, one or more of the radial ribs being fitted with connecting tubes notched and shaped to fit over the ribs and against the cylindrical shell to receive other tubular members. Figs. 3 and 4 show an attachment formed from two plates bent to form a sleeve 1<1> with radiating flanges stiffened by plates 4<1>, 4<11> and shaped to form lugs 3<1>, 3", each flange, having secured centrally, to it a tube 6<1>, 6". Other forms with one flange and one tube and with three flanges aud two tubes are described and also a girder built up from tubes and diagonal wires by means of these attachments.