baber/WOPTO huggingface dataset:
Patent GB-936170-A (GB)
Title: Improvements in or relating to pressure vessels
IPC: F16L23/032
Filed: 1961-11-20
Abstract: 936,170. Reactor pressure vessels. BABCOCK & WILCOX CO. Nov. 20, 1961 [Nov. 21, 1960], No. 41411/61. Class 39 (4). [Also in Group XXII] A pressure vessel or a closure member therefor has a closure flange which is formed internally with an annular passageway and aperture means for providing access to the passageway from outside the flange. A pair of upper and lower rings 24, 26, and locking rings 28A, 32A, 34A defining an annular passageway 36 are arranged about a vessel 10 or head 14 and attached by welding (see Group XXII). In a first modification a flange comprising rings 40, 42 and backing rings 44A, 46A, is welded to the outer periphery of the head 14 or to the end face of the vessel 10. In a second modification a flange comprising a tube 60 formed as a toroid about the head 14 or at the end face of the vessel 10 is attached to them by a weld deposit 62 which is machined to the required cross-section. In each case the annular passageway is penetrated to provide holes for the fixing bolts and access to the passageway. The flange may be radio-graphed by drawing a radio-active capsule around the passageway and using an external radiation sensing device. Electric heating elements may be inserted in the passageways or they may be used as flow passages for heating or cooling fluids.
Patent GB-1451601-A (GB)
Title: Fuel-fired furnaces
IPC: F27D1/00
Filed: 1972-09-07
Abstract: 1451601 Fuel fired furnace BRITISH GAS CORP 15 Oct 1973 [7 Sept 1972] 41508/72 Heading F4B A furnace, having a chamber 1 through which steel billets 27 are pushed by a hydraulic ram 29, is heated by gas burners 4 at one end and is provided with a cooling air duct 18 which surrounds the chamber 1. Air is supplied to the duct 18 through an inlet 19 by a fan (not shown) to prevent overheating of the walls. Heated air leaving the duct 18 through pipes 20 is used as combustion air for the burners 4. Combustion products pass through the chamber 1 in the opposite direction to the steel billets 27. The combustion products are drawn through an outlet duct 17 by fan (not shown). Valves 21 can allow some of the air passing through air duct 18 to pass into zone 6 of the chamber 1. The inner tube 5 is of metal but this may be lined with or replaced by ceramic refractory. Outer tube 7 is of lagged metal. Outer and inner tubes 7 and 5 are rigidly connected together at their ends but the outer tube includes a bellows expansion joint 13. The steel billets 27 are pushed along skid rails 28 on stub supports 30. The rails and supports are hollow and cooling water is passed through them In scale-free heating of the billets, the burners operate at 50% of the stoichiometric air-gas ratio so that the combustion products are gas-rich. The combustion is then completed in zone 6 by air passing thereto through the valves 21.
Patent GB-1033660-A (GB)
Title: A concrete reinforcement grid
IPC: E04C5/04
Filed: 1963-10-21
Abstract: In a concrete reinforcement grid some of the intersections of longitudinal and transverse rods are encased in a synthetic plastics material.  The casing may be formed by injection moulding, winding a plastics tape around the joint and heat sealing it or by sintering a mass of plastics material.  The junction is sufficiently strong to hold the frame-work together at least during transport.
Patent GB-1137790-A (GB)
Title: Improvements in or relating to papermaking machines
Inventor: CURTIS DONALD ROBERT
IPC: D21F1/02
Filed: 1967-09-12
Abstract: 1,137,790. Papermaking. ALLIS-CHALMERS MFG. CO. 12 Sept., 1967 [26 Sept., 1966], No. 41602/67. Heading D2A. The opening between a fixed lower lip and pivoted upper lip of the slice of a Fourdrinier papermaking machine is controlled by adjustable rods, each of which is adjustably connected at its upper end to a first mitre gear placed near a drivable cross-shaft parallel to the slice opening, and on which is mounted a series of second mitre gears, each independently slidable along the shaft into and out of mesh with the first mitre gears, and individual means for so sliding them. As shown, 10 and 11 are the lips of a slice. Rods 17 are mounted on the upper lip in brackets 18. A cross-shaft 25 mounted on the front of the headbox can be driven by motor 50 through gearbox 51 and belt 56. Keyed to the shaft are mitre gears 45 each mounted on a fork collar 42 controlled by a solenoid or air cylinder 40. Yokes 27 are also mounted on the cross-shaft 25 and carry mitre gears 30, which can rotate freely about the yokes 27, but have tubular extensions 31 within which are secured threaded nuts 38 engaging the threaded upper ends of rods 17. When two gears are engaged and the shaft driven, the corresponding rod 17 moves up or down. 65 is a device for sensing the relative positions of the rods 17 and their 'gears. A remote control panel (not shown) has individual switches for the solenoids or cylinders 40 and for the motor 50 and gear box 51, and indicators coupled to the sensing means 65.
Patent GB-1218290-A (GB)
Title: Intra-uterine device inserter
Inventor: ROBINSON RALPH ROLLIN
IPC: A61F6/14
Filed: 1968-09-03
Abstract: 1,218,290. Intra-uterine device inserter. R. R. ROBINSON. 3 Sept., 1968, No. 41759/68. Heading A5R. An inserter 10 for a collapsed intra-uterine device 12 comprises an inner tube 20, extending outwardly beyond one end of an outer tube 18, a plunger 24 having an end 30 within inner tube 20 to eject the intra-uterine device, and releasable means 32 for restraining relative movement of the two tubes and permitting removal of the inner tube from the outer tube. As described a guide sleeve 28 for the plunger is in the outer tube. The releasable means 32 comprises an annular enlargement 34 on the outside of end 22 of outer tube 18 and a clip 36, slidable on inner tube 20 to vary at will the depth of insertion of the inner tube 20 into the uterus, comprising a cross-piece 38 and legs 32 to engage the enlargement.
Patent GB-962064-A (GB)
Title: Improvements in or relating to bell-type annealing furnaces
IPC: C21D9/663
Filed: 1962-11-06
Abstract: 962,064. Bell-type furnaces. INDUGAS GES FUR INDUSTRIELLE GASVERWENDUNG. Nov. 6, 1962 [Nov. 9, 1961], No. 41853/62. Heading F4B. A bell-type annealing furnace has baffles 9 of wire gauge or mesh corrugated at right angles to the flow of circulating atmosphere and disposed between the inner cover 5 and the coils B, both of which are contacted by the crests of the corrugations. Alternatively, the baffles may be made of perforated sheets or wire or rod gratings.
Patent GB-1327206-A (GB)
Title: Sliding lid box method for making it and a device for carrying out the method
IPC: B65D77/20
Filed: 1970-09-02
Abstract: 1327206 Sliding lid box; package C P CONSEILLER EN PACKAGING SA 2 Sept 1970 [3 Dec 1969] 41966/70 Headings B8C and B8P A sliding lid box comprises a plastics container and a cardboard lid 3 engaged in longitudinal grooves formed in the container and secured in a closed position by at least one removable or disengageable locking tongue provided on the lid 3. The grooves are formed by turning over longitudinal flanges 2 when the lid 3 is positioned on the container. In the embodiment shown a locking tongue 4 is connected to the lid 3 by a perforated line 5 and projects through a gap in the folded over flange. In an alternative embodiment (Fig. 3) both ends of the lid (3) extending beyond the grooves are provided with locking tongues (6, 7), one (7) of which is connected to the lid 3 through perforations (5). In a further embodiment tongues (8, Fig. 4) on the ends of the lid are turned over on to and glued to the lid. Before the lid 3 is placed on the flanges 2 and the flanges 2 bent over to form the grooves the contents to be packaged are placed in the container.
Patent GB-936982-A (GB)
Title: Process for preparing vinyl chloride
IPC: C07C17/08
Filed: 1960-12-06
Abstract: Vinyl chloride is prepared by passing acetylene and hydrogen chloride into an aqueous hydrochloric acid solution containing a cuprous and/or mercuric salt as catalyst, and phosphine or a substituted phosphine as catalyst activator.  In addition to phosphine, diphosphine (P2H4), mono-, di-and tri-alkyl-, aryl- or aralkyl-phosphines, and alkyl-aralkyl-phosphines, where the alkyl groups contain 1-4 carbon atoms, the aryl groups 6 carbon atoms, and the aralkyl groups 7 to 10 carbon atoms, are mentioned.  Organic phosphines specified are: methyl-phosphine, trimethyl-phosphine, methyl-ethyl-phosphine and dimethyl-benzyl-phosphine.  The quantity of phosphine compound added is generally such that the catalyst solution has a phosphorus content of between 0,01-0,4% by weight. The process is carried out at 60-140 DEG C., and at a pressure of 1-5 atmospheres.  The hydrogen chloride may be added to the catalyst solution either in the gaseous state or as an aqueous solution having a concentration between 10,5-40% by weight.  Experiments are described using mercuric chloride alone or with cuprous chloride, and in the presence or, for comparison, the absence of phosphine or methylphosphine.
Patent GB-1525057-A (GB)
Title: Regulating pabx/public exchange line loss
IPC: H04M7/04
Filed: 1976-10-12
Abstract: To control the line attenuation between a PABX system and the exchange, the arrangement contains, inter alia, control amplifiers (14, 15) whose amplification level can be controlled by circuits (18, 19) which in each case act on a resistance network in the return path of the amplifiers. The connection between the hybrid circuit (16) of the extension and the exchange has a coupling device to couple a Hall effect device (17) to which a level detector device is connected which supplies coded output signals which categorise the line currents, i.e. divide them into value ranges. The aforementioned output signals act via the circuits (18, 19) on the amplification level of the control amplifiers (14, 15), thus achieving the aforementioned control effect. <IMAGE>
Patent GB-975183-A (GB)
Title: Combination of loose-leaf binder and stationery
IPC: B42F13/02
Filed: 1960-12-09
Abstract: 975,183. Filing papers. O. A. BECKER. Dec. 9, 1960 [Dec. 10, 1959; June 29, 1960], No. 42546/60. Heading B6E. A loose-leaf binder having flexible filing prongs and a separate compressor bar is combined with loose sheets having filing holes and marginal slots extending from the holes to the binding edge. The filing prongs comprise flexible tubes or strips of plastics material having enlargements on their free ends serving as stops for the compressor bar. One cover of the binder is provided with a pocket 27 on its inner face to receive the compressor bar 5 when it is required to insert or remove loose sheets. In a modification the sheets are filed in groups, each group 10 being secured to a subsidiary binder 30. Each binder 30 has marginal slots 11 by means of which it is filed in the main binder provided with two flexible filing prongs in the usual way. Various filing holes and marginal slots are illustrated in Figs. 1-6 and 15-17 (not shown), including circular- and triangular-shaped holes, and straight slots normal or inclined to the binding edge of the sheets, or dog-leg shaped slots.
Patent GB-1156552-A (GB)
Title: Improvements in or relating to blanks feeding means for die presses
IPC: B31B50/59
Filed: 1966-09-23
Abstract: 1,156,552. Blanks transferring. MARTIN FUCHS, METALLWARENFABRIK. 23 Sept., 1966 [30 Sept., 1965], No. 42555/66. Heading B3Q. [Also in Division B8] Means for feeding blanks 28 to a die-press comprises a magazine 27 containing a stack of the blanks, a mechanical, pneumatic or magnetic gripper 23 for gripping the topmost blank of the stack, and means 20 for raising the gripper and blank. As shown, the gripper 23 operates by suction and is raised and lowered by a pneumatic cylinder mounted on a bracket 18 which is carried by a slide 12. Magnets 29 separate the upper blanks in the magazine. A pneumatic cylinder 15 feeds the slide along rails 11 to carry the blank over a recess 59 to the pressplaten 6. The floor 32 of the magazine is raised by a screw-threaded spindle 34 which is turned by a toothed wheel 35 operated by a pawl (40), Fig. 4 (not shown). A pneumatic cylinder 39 rocks the pawl, and the spindle 34 engages screwthreads in a split nut 45 which may be opened by a cam-lever 54 to allow the spindle to be returned against a stop 55. The press may include a device for transferring the blanks from the recess 59 to the various die-stations in the platen 6, as described in Specification 1,104,468, the press and transfer device being controlled by a switch 65 operated by the feeding device. Operation.-As the gripper 23 picks up a blank its piston-rod 22 actuates a switch 56 for raising the gripper. When the gripper reaches its top position it is moved towards the press by cylinder 15 until the slide 12 operates a switch 60 for initiating downward movement of the gripper. The vacuum is interrupted in the gripper 23 as the gripper reaches its lowest position so as to drop the blank in recess 59; switch 56 now initiates upward movement of the gripper, and a switch 62 causes a return movement of the slide 12, which restarts the cycle by operating a switch 64.
Patent GB-963486-A (GB)
Title: Method for the preparation of certain forms of alumina and alumina hydrate
IPC: B01J21/04
Filed: 1960-12-12
Abstract: Beta alumina trihydrate (bayerite) is prepared by adding to a substantially metal-free aqueous solution of a compound which yields hydroxyl ion and a non-metallic volatile cation an aqueous solution of aluminium chloride or nitrate at a temperature above freezing but below 49 DEG  C., while maintaining the mixed solution at a pH of at least 9 throughout the addition.  The aqueous solution of aluminium chloride or nitrate must be substantially free of metal ions other than aluminium.  The resulting precipitate is washed with water or an aqueous ammonium hydroxide solution and dried at a temperature not in excess of 121 DEG  C. Sources of hydroxyl ion which may be used are ammonium hydroxide, ammonium carbonate and water-soluble amine hydrates.  The concentration of both component solutions is preferably 0.1 to 4 molar.  The beta alumina trihydrate may be converted to eta alumina by heating it at 260 DEG  to 650 DEG  C. for 1 to 24 hours in the absence of steam.ALSO:A halogen-promoted, platinum-alumina catalyst for the hydroisomerization of n-pentane is prepared by impregnating eta alumina granules with a dilute solution of chloroplatinic acid, drying and calcining the impregnated granules, and then heating with a dilute solution of hydrogen fluoride.  A similar catalyst is prepared by adding a platinum sulphide sol, prepared by saturating a chloroplatinic acid solution with hydrogen sulphide, to a peptized alumina gel, stirring for 30 minutes, evaporating the mixture to dryness, pulverizing and treating with a solution of hydrogen fluoride.  The material dries to a hard cake which is crushed and calcined.  The catalyst is further treated with a dilute solution of hydrogen fluoride, dried and finally calcined.
Patent GB-1489090-A (GB)
Title: Fuel injection system
IPC: F02M69/48
Filed: 1974-10-02
Abstract: 1489090 Fuel injection apparatus ROBERT BOSCH GmbH 2 Oct 1974 [3 Oct 1973]  42674/74 Heading F1B A fuel injection apparatus for a spark-ignited I.C. engine comprises an induction pipe 1 upstream of induction manifold branches 17 and having a fuel injection nozzle 8 forming a conical fuel spray 9, in the path of air accelerated by a flap 2 journalled pivotally at one end 4 in the pipe 1, which flap 2 takes up a deflected position according to the quantity of air flowing through the pipe (due to the bias of spring 3). The deflected position of the flap 2 may control the fuel quantity injected by the nozzle 8, e.g. via an electrical controller 24. The accelerated air entrains and mixes the fuel spray while inhibiting precipitation of fuel drops upon the induction pipe walls 13. At idling, the flap 2 is closed and air passes through an adjustable passage 19. In Fig. 3, the flap is replaced by a 2-vaned throttle valve 26, 31 and an air measuring baffle 25 which has a plastics runner 30 sliding on the throttle valve vane 26. For idling, an air passage 19 leads to a chamber 39 which is narrowed at 40 around the nozzle to accelerate the idling air. A glow-plug 42 and an exhaust-heated jacket may be provided to heat the air/mixture e.g. at starting. In a further embodiment (not shown) the baffle (25) and throttle valve (26, 31) are mounted co-axially, the baffle spindle (48) lying inside the hollow spindle (46) of the throttle valve.
Patent GB-944976-A (GB)
Title: Supporting bearings on shafts
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: F16C27/04
Filed: 1962-11-12
Abstract: 944,976. Securing bearings to shafts. ROLLSROYCE Ltd. Nov. 12, 1962, No. 42723/62. Heading F2U. At least one portion of a bearing is connected to a rotatable shaft by a plurality of angularly spaced, axially extending resilient bars. The bearing 12 supporting a hollow shaft 10 of a high-pressure gas turbine disc 20 has an inner race 26 rigid with an annular support 25 bolted to a ring 24 integral with the ends of a series of axially extending angularly spaced resilient bars 23. The remote ends of the bars 23 are integral with a ring 22 bolted to the shaft 10. The bars 23 serve to damp vibration and relative orbital movement between the shaft 10 and the bearing 12 to an extent limited by a toothed member 46, attached to the shaft 10 by a frusto-conical sleeve 45, engaging with radially spaced teeth 47 rigid with the ring 24. A second bearing 17 is similarly mounted through bars 53 on an inner shaft 15 to support a low-pressure disc 50 from a fixed structure 13.
Patent GB-964690-A (GB)
Title: Improvements relating to the isolation of alkaloids
Filed: 1962-11-12
Abstract: The invention comprises the alkaloid harmidine and the corresponding phenol harmidol, and the preparation of harmidine from Peganum harmala by (i) percolating powdered seeds thereof with methanol or ethanol, and removing the alcohol, (ii) partitioning the residue between water and petroleum ether, (iii) treating the aqueous phase with ammonia and ammonium sulphate, (iv) precipitating crude hydroiodides with potassium iodide solution, (v) recrystallising, (vi) liberating the free bases with alkali and dissolving them in acetic acid, (vii) adding ammonia and heating so as to hydrolyse the acetate of the weaker base harmine, and filtering off the harmine formed, and (viii) adding ammonia to hydrolyse harmidine acetate, and recrystallising the product. Harmidine may be converted (a) into harmidol by treatment of the hydroiodide with ammonia, (b) into dihydroharmidine by treatment with zinc and hydrochloric acid, and (c) into dibromoharmidine by treatment with bromine; the monobromo-derivative is obtained by treating the dibromo-derivative with ammonium hydroxide. Salts of harmidine and harmidol are also disclosed.
Patent GB-1200788-A (GB)
Title: Photographic apparatus
Inventor: SIMON HORST
IPC: G03B17/02
Filed: 1967-09-20
Abstract: 1,200,788. Photographic roll-film cameras. EASTMAN KODAK CO. Sept.20, 1967 [Sept.23, 1966], No.42743/67. Heading G2A. A photographic roll film camera having a manually operated slide to activate a film rewinding mechanism and a second manually operated slide to unlock the camera back for loading and unloading the film, contains a locking device to prevent accidental rewinding of the film and accidental opening of the camera back by inadvertent operation of the slides. The device comprises a pivoting latching lever 2 biased by a spring 9 and having a lug 25 which, when the device is in the locked position, Fig.1, prevents operative movement of the film rewind activating slide 3 in the direction of the arrow. A cam surface 21 at the other end of latching lever 2 abuts a lug 11 mounted on the camera back unlocking slide 1, movement of this slide in the operative direction shown by the arrow being stopped at an intermediate position before the camera back is unlocked by the lug 11 abutting a stop 22. During said movement of slide 1, the lug 11 operates on cam surface 21 to pivot the latching lever 2 thus freeing the film rewind slide 3 from the lug 25. During the subsequent movement of the film rewind slide 3 to activate the film rewind, the lug 25 operates on cam surface 32 to further pivot the latching lever 2 thus freeing the camera back unlocking slide 1, the lug 25 engaging the nose 33 to retain the film rewind slide in the film rewind position. When the film has been rewound, operation of the camera back unlocking slide 1 to open the camera back further pivots the latch lever 2 when lug 11 operates on cam surface 23 and the lug 25 is disengaged from nose 33 allowing the film rewind slide 3 and subsequently the latching lever 2 to return to their original positions.
Patent GB-1125723-A (GB)
Title: Improvements in or relating to antibiotics and the manufacture thereof
IPC: A61K35/66
Filed: 1965-10-08
Abstract: 1,125,723. Desdanine and related antibiotics. UPJOHN CO. 8 Oct., 1965 [27 Nov., 1964], No. 42820/65. Heading C2A. [Also in Division A5] An antibiotic desdanine is coproduced with the known antibiotic celesticetin and a further antibiotic desdamethine, ethesdanine or a sulphur-containing antibiotic having the empirical formula R<SP>1</SP>.C -1 H 11 N 2 OS, where R<SP>1</SP> is C 3  to C 8  alkyl, by cultivating a celesticetinproducing strain of Streptomyces caelestis, e.g. NRRL 2418 (Specification 768,971) in an aqueous nutrient medium to which has been added an (#-alkylthio-α-amino acid of general formula wherein R is C 1  to C 8  alkyl and n is 1 to 4. Desdanine has the formula C 7 H 10 N 3 O. When the terminal alkylthio group of the added α-amino acid is (a) methylthio, desdamethine C 8 H 14 N 2 OS is coproduced; (b) ethylthio, ethesdanine C 9 H 16 N 2 OS is coproduced; (c) propylthio, C 10 H 18 N 2 OS is. coproduced; and (d) butylthio, C 11 H 20 N 2 OS is coproduced. Desdanine may be obtained by heating the aforesaid sulphur-containing antibiotics in dioxane. Desdanine is isolated from the clarified broth by extracting with methylene chloride at pH 6À3 to remove celesticetin, adjusting the pH of the extracted broth to pH 10, if required extracting with methylene chloride to remove ethesdanine, treating the extracted alkaline beer with 1-butanol and concentrating to form a crude. This may be purified by converting it to a water-soluble acid addition salt, e.g. HCl, and regenerating the desdanine by the addition of a base. Desdamethine is recovered from a clarified broth at pH 10 by extraction with nbutanol, re-extracting the butanol extract with dilute hydrochloric acid, adjusting to pH 10, extracting with methylene chloride and concentrating. The antibiotics are effective against gram positive and negative bacteria, and are mono basic, forming salts with acids such as hydrochloric, sulphuric and phosphoric acid. Desdamethine forms a hexafluoroarsenate and hexafluorophosphate which are useful as a parasiticide. Other properties are as follows:-