baber/WOPTO huggingface dataset:
Patent GB-721364-A (GB)
Title: Variable section nozzle neck
IPC: F15D1/08
Filed: 1952-02-08
Abstract: 721,364. Spray carburetters. CONSERVATOIRE NATIONAL DES ARTS & METIERS, and MENA.RD, M. Feb. 8, 1952 [June 29, 1951], No. 3418/52. Class 7 (3). [Also in Groups XXVI and XXIX] The neck of a nozzle or pipe for aerodynamic or hydraulic ducts is rectangular, two walls 3 being parallel and the other two walls 4 and 5 being at first convergent and then slightly divergent, and the neck is varied in cross section by at least one streamlined swelling or obstacle 6 fitting closely against one or both of the parallel walls inside the nozzle and capable of being slid longitudinally. The arrangement can be used to control the flow through a pipe line e.g. in mixing or carburetting apparatus, or to obtain a variable pressure at a given point in a pipe line, e.g. a discharge measuring nozzle, or to control the speed of flow at different points in a pipe line, or in the supply pipe leading to a jet engine or for regulating the Mach number of a subsonic or supersonic nozzle comprising a sonic neck. The swellings 6 may be adjusted longitudinally by a toothed pinion in a slot in the nozzle engaging a rack formed on the back of the swellings.
Patent GB-607424-A (GB)
Title: Improvements relating to air heating means for road and other motor vehicles
IPC: B60H1/06
Filed: 1946-02-04
Abstract: 607,424. Radiators for motor vehicles. SERCK RADIATORS, Ltd., and MARTIN, A. M. Feb. 4, 1946, No. 3429. [Classes 64(ii) and 64(iii)] The interior of road and like motor vehicles is heated by air passed through passages in the upper part of the radiator isolated from the water cooling passages. In a radiator having vertical cooling tubes a terminating in headers c the isolated passage is provided by a front plate d having an air admission port, upper and lower horizontal plates h<1> and a back plate f provided with a connection g for a duct leading to the interior of the vehicle body.
Patent GB-785375-A (GB)
Title: Improvements in or relating to the manufacture of flat wire rope
IPC: D07B1/22
Filed: 1955-02-05
Abstract: 785,375. Making wire ropes. HOOD HAGGIE & SON, Ltd., R., and SMITH, J. E. Jan. 17, 1956 [Feb. 5, 1955], No.3493/55. Class 109 A wire rope making machine is modified for the production of flat ropes by mounting in place of the usual lay plate a forming head 1 carrying circumferentially spaced around and equidistant from its axis at least three rotatable ferrules 3 each having an even number of bores symmetrically arranged about the axis of the ferrule to receive strands to be formed into a rope, and flat-faced pressure blocks 4, 5 through which the formed rope passes before being wound on an uptake capstan. As shown, Fig. 2, three ferrules 3, flanged at one end, and each having two bores 3a, 3b through which pass the strands 6, 7, 8 to be formed into the rope A, are mounted in ball or roller bearings in bores in the forming head 1. The rope B, shown in Fig. 5 formed by this modified machine, has two layers of strands with a position in which a row of two strands 8 lie above a row of four strands 6, 7 alternating with a position in which a row of four strands 7, 6 lies above a row of two strands 8.
Patent GB-902681-A (GB)
Title: Improvements relating to the manufacture of hydroxylamine
IPC: C01B21/14
Filed: 1959-02-02
Abstract: Hydroxylamine sulphate solution is prepared by a continuous process in which SO2 is reacted <PICT:0902681/III/1> with an aqueous solution of ammonium hydroxylamine disulphonate containing ammonium nitrite, and ammonium carbonate and/or ammonium bicarbonate, the resulting solution of ammonium hydroxylamine disulphonate being subsequently hydrolyzed by heating, characterized in that the aqueous solution of ammonium hydroxylamine disulphonate containing ammonium nitrite, and ammonium carbonate and/or bicarbonate is circulated in a system, cooled to at least 0 DEG  C., SO2 and ammoinum nitrite solutions containing ammonium carbonate and/or bicarbonate being introduced separately into the circulating solution at different places, the solutions and SO2 flowing concurrently with each other, the SO2 being introduced in stoichiometric excess relative to the ammonium hydroxylamine disulphonate formation so that the free SO2 content of the ammonium hydroxylamine disulphonate solution is at least 2g/litre, the proportion by volume of the circulating solution to the amount of aqueous ammonium nitrate solution introduced per unit time being such that the pH of the circulating solution between the inlet of the ammonium nitrite solution and the SO2 inlet is at most 6 and between the SO2 inlet and outlet of the disulphonate solution to be hydrolyzed by heating, the volume of which solution corresponds to the volume of ammonium nitrite solution introduced, the pH falls to within the range 1,5 - 2,5.  Ammonium hydroxylamine disulphonate solution containing ammonium nitrite and ammonium carbonate and/or bicarbonate is circulated by pump 4 at -3 to 0 DEG  C. through tower 1 packed with filler bodies and through cooler 5.  Aqueous ammonium nitrite solution, prepared by reacting nitrous gases with aqueous ammonium carbonate and/or bicarbonate solution and containing 10 - 20% nitrite with an amount of carbonate or bicarbonate in excess of 2,5 - 10% of the theoretically necessary amount calculated on the nitrite produced, is passed through pipe 3 at such a rate that the pH of the circulating solution between 3 and tower 1 is adjusted to between 4 and 6.  SO2-containing gases in excess of 2 - 6 grms./litre are introduced at 7 into tower 1 and flow concurrently therein with the solution entering at 6, so that the pH of the solution is between 1,5 and 2,5.  Residual SO2-containing gases leave through 8, and ammonium hydroxylamine disulphonate solution is removed at 9 to be hydrolysed by heat to hydroxylamine sulphate in a tower heated by steam to 102 - 104 DEG C.  The excess SO2 liberated during hydrolysis may be returned to tower 1.  Where gases containing 5 - 15% SO2 and inert gases are used, gases removed at 8 may be returned to tower 1 after addition of SO2.  Specification 668,610 is referred to.
Patent GB-754140-A (GB)
Title: Improvements relating to variable speed electric drives
Inventor: STRETTON ALBERT THOMAS
IPC: H02K7/11
Filed: 1954-02-08
Abstract: 754,140. Motor driving arrangements. BRITISH THOMSON - HOUSTON CO., Ltd., and VAUGHAN CRANE CO., Ltd. Jan. 26, 1955 [Feb. 8, 1954], No. 3654/54. Class 35. The torque of a constant speed motor is transmitted to an output shaft by a pair of variable speed eddy current couplings disposed adjacent the opposite ends of the motor in respective annular spaces between the stator end turns and the output shaft. The motor shown has two eddy current couplings located at the opposite ends of the rotor 5 and each coupling has a primary wound member 11 fixed to the output shaft 1 and a secondary cylindrical metal member 14 fixed to the rotor 5. The latter is mounted on ball-bearings 6 so as to rotate about the shaft 1 which, in turn, is mounted on ball-bearings 2. Each coupling member 11 has imbricated poles embracing a winding 12 fed through brushes 16 and slip rings 15. The speed of the shaft 1 is controlled by the degree of excitation of the winding 12. Alternatively, the primary member 11 may be mounted on the rotor 5 and the secondary member on the shaft 1.
Patent GB-693284-A (GB)
Title: A flexible and extensible chute
IPC: B67B3/064
Filed: 1950-03-14
Abstract: 693,284. Shoots. MEADOWCROFT & SON, Ltd., W., and MEADOWCROFT, W. June 13, 1951. [March 14, 1950] No. 3690/50. Class' 78 (i). A flexible and extensible shoot C for conveying crown corks from a hopper A to a movable crowning head B consists of a helical spring which has a cross-section similar to that of the corks.
Patent GB-1091447-A (GB)
Title: 1,2,3,4,4a,9b-hexahydro-5h-indeno[1,2-c]pyridin-(5)-ol derivatives and their preparation
Inventor: JUCKER ERNST
IPC: C07D221/16
Filed: 1965-01-12
Abstract: Novel compounds of general formula <FORM:1091447/C2/1> wherein R11 represents hydrogen, alkyl of 1-4 carbon atoms, or benzyl, R2 represent hydrogen, halogen, or alkyl of 1-4 carbon atoms, and R3 represents a phenyl radical which may be substituted by halogen, lower alkyl, methoxy or methyl thio, the benzyl, pyridyl, pyridylmethyl or thienyl radical, and their acid addition salts are prepared in the case where R11 is other than hydrogen, by reacting a 1,2,3,4,4a, 9b - hexahydro - 5H - indeno - [1,2 -c] - pyridin-(5)-one with an organo-metal compound of formula Me-R3 where R3 has the above significance and Me signifies a lithium atom, or a halogen magnesium radical, and hydrolysing the reaction product, and when R11 is hydrogen, by treating a compound wherein R3 is methyl with a chloroformic acid alkyl ester and hydrolytically splitting off the alkoxycarbonyl radical from the resulting 2-alkoxycarbonyl derivative. (2 - Ethoxycarbonyl - 5 phenyl - 1,2,3,4,4a,9b-hexahydro - 5H - indeno - [1,2 - c] - pyridin-5-ol forms part of the invention).  2 - Benzyl - 5 - phenyl - 1,2,3,4,4a,9b - hexahydro - 5H - indeno - [1,2 - c] - pyridin - 5 - ol is obtained by reacting the corresponding 2-unsubstituted compound with benzyl chloride.
Patent GB-555074-A (GB)
Title: Improvements in and relating to portable hangars and other large shelters
IPC: E04H5/02
Filed: 1942-03-26
Abstract: 555,074. Shelters for aircraft. LAMSON ENGINEERING CO., Ltd., TARLING, A. J., and CLAYTON, A. T. March 26, 1942, No. 4006. [Classes 20 (i) and 20 (ii)] A portable hangar or workshop shelter of the kind comprising a metal framework, a textile covering and a lifting device, has the framework formed of a series of arched members 13 connected in spaced relationship by purlins 12, each arched member being formed of two side members of lattice tube construction with bent over upper portions 14 adapted to be connected at 15 to a bent lattice tubular roof member 20, with or without the use of intermediate frames 17 according to the width of building required. The framework members are preformed and each consists of side tubular members interconnected by transverse tubes 22, 23 welded to the side tubes. The frame members are provided with collars 24 to which the ends of the purlins 12 are loosely pinned to allow of correct positioning on uneven ground. The rear transverse frames may be of less width than the front frames. The runway 29 for the lifting device 30 is supported at its ends by brackets 27 and guide channels 28, and is further supported intermediately of its ends by two pairs of struts 33 having screwed extension feet 36 contacting with the ground.
Patent GB-1298286-A (GB)
Title: A protective reel cover assembly
Inventor: FITZGERALD RICHARD JAMES JR
IPC: G11B23/027
Filed: 1970-08-03
Abstract: 1298286 Band clamps INTERNATIONAL BUSINESS MACHINES CORP 3 Aug 1970 [29 Aug 1969] 4054/72 Divided out of 1298285 Heading E2B [Also in Division B8] A protective reel cover assembly comprises an outer closure ring and an inner member secured in snap fit relation to the inner surface of the outer ring and defining with the outer ring an air chamber for the delivery of air through spaced air exit openings in the inner member. The closure ring 15 is U shaped in cross section and has two pairs of spaced ribs 30, 31 providing circumferential grooves in each of which one of a pair of flanges 40, 41 on the inner member 18 engages and a rib 43 on the outer flanges snap engages in a lateral groove 33 in the rib 31 to provide an airtight seal. The inner member 18 has an end extension 19 which comprises a flat plate 50 bonded to an inner surface of the outer ring at 17 and a section 51 extending from the member 18 and abutting the plate 50 and which closes an exit passage 29 for a tape when the ring is fastened and which opens the passage when the fastener is released. The ring 15 has air inlet holes 61 into which air is blown to flatten the tape and the inner extension 19 has inclined outlet openings 62 and an oppositely inclined opening 63 inclined towards the exit passage 29 to facilitate withdrawal of the tape. The outer ring 15 has a pair of outer positioning ribs 34 which are interrupted at spaced intervals by recesses 35 accommodating resilient pads 36 which are wedged in place by tabs 47 extending laterally from the flanges 41. A headed pin 57 on the extension projects into a key hole slot in the ring 15 to act as a guide during ring opening. The rings 15 and 18 may be made of plastics material. The split ring 15 is closed by a toggle joint fastening comprising a lever 83 pivoting on a post 80 attached to one end of the ring, a follower 84 pivoting on a post 81 attached to the other end of the ring and a link 82 pivotally connecting the lever 83 and follower 84. The fastener may be made of plastics and comprise an integral unit. The rings may be secured within a pad member in which it is located by extensions 28.
Patent GB-790296-A (GB)
Title: Preparation of di-potassium uranous fluoride
IPC: C01G43/00
Filed: 1944-03-04
Abstract: Di-potassium uranous fluoride, K2UF6 is prepared by heating uranous oxide with potassium acid fluoride to about 800 DEG  C.  The uranous oxide may be prepared by hydrogen reduction of uranium oxide, U3O8. The potassium fluoride di-hydrate produced in the reaction may be mixed with 50 per cent hydrofluoric acid to reform potassium acid fluoride, which, with or without dehydration may be re-used in the process.  Thus four mols. of potassium acid fluoride may be mixed with one mol. of uranous oxide and the mixture heated in a carbon or graphite crucible to about 800 DEG  C. and when the reaction is complete the potassium fluoride may be decanted or syphoned off.  The molten di-potassium uranous fluoride may be poured out, cooled, ground and extracted with water and finally dried at 100 DEG  C.  The di-potassium uranous fluoride may be employed in the production of uranium by electrolysis.
Patent GB-489753-A (GB)
Title: Improved process for the recovery of the sulphurous acid produced in the sulphite cellulose cooking process
IPC: D21C11/06
Filed: 1938-02-09
Abstract: <PICT:0489753/III/1> Sulphur dioxide liberated from a sulphite cellulose digester is passed into an absorption device of gas-holder construction and dissolved in the sealing liquid, which may be continuously or intermittently sprayed into the gas space.  The contents of the digester a is passed into a relief vessel b where water vapour and sulphur dioxide are emitted.  The gases pass through separator c, cooler d and separator g into a gas-holder e, the sealing liquid of which is circulated by pump f and sprayed into the gas through jets r.  The condensate in cooler g may be used as sealing liquid. Concentrated solution is withdrawn through outlet h.
Patent GB-545742-A (GB)
Title: Improvements relating to curtain suspension fittings
IPC: A47H1/144
Filed: 1941-03-27
Abstract: 545,742. Cellulose acetate articles ; synthetic resin articles. BYSON APPLIANCE CO., Ltd., and HARRISON, E. March 27, 1941, No. 4119. Drawings to Specification. [Classes 2 (ii) and 2 (iii)] [Also in Group XIV] A curtain rail comprises a flat web of synthetic resin, cellulose acetate or like plastic moulding material reinforced internally by an apertured metal strip, or strips, or by parallel wires bent at intervals to form the apertures. Tubular spacing members for spacing the curtain rail from the window &c. are also made of synthetic resin or cellulose acetate.
Patent GB-982013-A (GB)
Title: Improvements in or relating to combustion apparatus for burning liquid hydrocarbons
Inventor: HUSTON MILTON DAVID
IPC: F23D5/00
Filed: 1962-02-02
Abstract: 982,013. Pot burners. CONTROLS CO. OF AMERICA. Feb. 2, 1962, No. 4205/62. Heading F4T. Combustion apparatus for burning liquid hydrocarbon comprises a vaporizing burner pot A supplied with fuel and having primary air inlet apertures 3 in its side wall 1, and a secondary air supply structure C surmounting the pot and defining a primary mixture outlet D and a plenum chamber 22 from which secondary air is delivered through apertures 42, 46 to the outlet D which is substantially smaller in crosssectional area than that of the pot C. Fuel is supplied to the pot A through a pipe 50 and is vaporized by the heat of combustion in or just above the pot. Primary air entering through apertures 3 mixes with the rising vaporized fuel and is further heated by pinpoints of flame occurring at the low-pressure primary air apertures 19 of an internal sleeve 13. Air for this combustion passes up the tube 11 of a central structure, through apertures 17, 18 to issue from apertures 19. The central structure may be omitted. The secondary air apertures 46 are obscured from the primary mixture by upwardly extending flanges 45 (Fig. 3) positioned inwardly from the walls 40, 41 of the outlet D, so that air leaving the apertures 46 is directed to the base of each jet issuing from the apertures 42. Air for combustion is supplied by a blower connected to a duct 8, the primary air leaving through apertures 3 and 19, and the secondary air travelling via the space surrounding the pot, through apertures 25, 26 to the plenum chamber 22 and leaving through apertures 42, 46.
Patent GB-115862-A (GB)
Title: Improvements in or relating to Ejectors.
Inventor: BAUMANN KARL
IPC: F04F5/42
Filed: 1917-03-23
Abstract: 115,862. Baumann, K. March 23, 1917. Nozzles, cones, and combining-tubes. - In ejectors of the kind in which the inducing-fluid is admitted tangentially at the centre of an annular diffuser or combining-passage so that the combined stream moves in a spiral path to the delivery outlet, the diffuser is of conical or hyperboloidal form at the part where the inlets are located, the inlets preferably being arranged so as to impart a whirling motion to the fluids where they mix. Several arrangements are described, suitable for either gases or liquids, or for mixtures. Fig. 1 shows one form diagrammatically, the inducing fluid entering through a passage 1 and issuing through tangential nozzles 2, while the induced fluid is admitted through a passage 6. The stream collects in a chamber 4 having an outlet 5. In another form, Fig. 2, the induced fluid is admitted through a central passage 6, the inducing-nozzles 2 being arranged tangentially at the top of the diffuser. In the form shown in Fig. 4, the axes of the nozzles 2 meet and lie upon the mean stream surface of the mixed fluids, the diffuser being shaped to correspond with the hyperboloid formed by the revolution of these axes about the central line. Two or more rings of such nozzles may be employed so as to form a multi-stage ejector. In a further modification, the inducing and induced fluids may be admitted through volute passages to concentric annular 'nozzles, as shown in plan in Fig. 8. Or the induced fluid may be admitted through a central passage 6, Fig. 9, so that, where water is induced by steam, a vortex is formed in the passage 6, through which uncondensed steam may escape. A central tube may be fitted in the passage 6 for this purpose. To increase the velocity of the induced fluid where it meets the inducing-nozzles, an artificial vortex may be created in the passage 6 by the employment of a suitable guide 14, Fig. 11; or accelerating-nozzles may be provided.
Patent GB-867069-A (GB)
Title: Improvements relating to vehicle lights
IPC: F21V9/16
Filed: 1960-02-08
Abstract: 867,069. Vehicle lamps; spotlights. MASSEYFERGUSON Inc. Feb. 8, 1960 [Feb. 20, 1959], No. 4312/60. Class 75(4). A vehicle light for use either as a working light, e.g. on an agricultural tractor, or as a warning light comprises a lamp unit for producing a broad high intensity beam mounted so as to direct the beam on to the work, e.g. rearwards and downwards, a lens movably supported on the mounting means for the unit so as to be movable into and out of operative position, the lens being tinted to colour and reduce the intensity of the beam and having formations to redirect the light when in operative position. In the form shown, the lamp 21 which may be of the "sealed beam" type is mounted in a casing 23 carried on a part of the vehicle, e.g. the rear fender. Pivoted to the casing 23 is a hemispherical lens 30 tinted red and provided on the inner surface with a system of horizontal prisms for bending the light upwards. The lens can be swung from the operative position shown to an inoperative position behind the casing 23.
Patent GB-539368-A (GB)
Title: Process for preparing ª‡, ª‰ unsaturated 21-aldehydes of the cyclopentano polyhydrophenanthrene series
IPC: C07J5/00
Filed: 1940-03-07
Abstract: 539,368. Cyclopentanophenanthrene - 21 - aldehydes. NAAMLOOZE VENNOOTSCHAP ORGANON. March 7, 1940, No. 4317. Convention date, Sept. 25, 1939. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 7, 1940.] [Class 2 (iii)] α-#-Unsaturated-21-aldehydes of the cyclopentanopolyhydrophenanthrene series are prepared from the corresponding 21-halogen compounds by treatment with tertiary bases followed by oxidation of the quaternary ammonium compounds so produced with aromatic nitroso compounds, preferably in the presence of acid binding means, and decomposition with acid of the intermediate compound so obtained. The presence of nuclear double bonds does not affect the reaction, and these may be present or not as desired. Nuclear substituents such as hydroxy, ketonic, or ester groupings may also be present. In examples (1) Bromo-21-pregnadiene-4 : 17-one-3 is treated with pyridine, the crystals of the pyridinium compound washed with benzene and re-acted with p-nitroso-dimethyl-aniline. Yellow-brown crystals of the nitron compound were obtained on the addition of sodium hydroxide which were decomposed with hydrochloric acid to give pregnadiene-4 17-one-3-al-21. The final product was purified by chromatographic adsorption. (2) Pregnadiene-5 : 20-al-17 is treated with phosphorous tribromide in chloroform solution and pyridine added. To the pyridinium bromide so formed p-nitroso-dimethylaniline is added, and then ether and then 2-N-hydrochloric acid. The product is acetylated with acetic anhydride in pyridine solution to give acetoxy-3-pregnadiene-5 : 17-al-21. Specification 539,441 is referred to.
Patent GB-984078-A (GB)
Title: A mouthpiece for saxophones, clarinets and like wind instruments
IPC: G10D7/06
Filed: 1964-01-31
Abstract: 984, 078. Saxophone mouthpieces. A. R. STRATHMANN. Jan. 31, 1964 [Feb. 15, 1963], No. 4323/64. Heading G5J. The timbre of a saxophone is controlled by an adjustable wedge-shaped insert 7 (which is mounted opposite the reed and which varies the volume of the column of air above the reed. The adjustment is made by a rod 7 and a slider 10 which is fitted with a grip 11 or, in a further embodiment, (not shown), with a Bowden cable.