baber/WOPTO huggingface dataset:
Patent GB-1309516-A (GB)
Title: Turbine flowmeter
IPC: G01F1/10
Filed: 1971-04-19
Abstract: 1309516 Rotary flowmeters ITT INDUSTRIES Inc 19 April 1971 [25 Feb 1970J 22024/71 Heading F1F A reversible rotary flowmeter having a vaned rotor 12 mounted with limited axial play on a shaft 20 includes on each side of the rotor a cup-shaped diffuser 23, 24 having a radial lip 34, 36 to deflect fluid away from the upstream side of the rotor hub 28, the reduced pressure causing a flow of fluid through a passage 37 from the downstream side of the rotor to provide axial balancing of the rotor. The shaft 20 is secured to a pair of spiders 13, 14 each comprising three or four spring steel cylinders 15, 17, and a spacer 27 separates the diffusers 23, 24. At very low flow rates the high drag on the rotor causes it to bear against the downstream diffuser, but as the flow increases, the rotor moves towards the upstream diffuser due to the low pressure on the upstream side of the rotor hub, the angular acceleration imparted to the fluid flowing through the passage 37 placing a drag on the rotor. At high flow rates, the rotor approaches the upstream diffuser and a throttling effect reduces the flow through the passage 37 thus reduces the drag. The overall effect is to increase the effective range of the meter at both low and high flow rates. In a second embodiment, the rotor hub is formed integrally with a pair of stub shafts located in bearing recesses in the diffusers.
Patent GB-1306528-A (GB)
Title: Production of cyanogen
IPC: C01C3/00
Filed: 1970-05-07
Abstract: 1306528 Preparation of cyanogen DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 7 May 1970 [31 May 1969] 22032/70 Heading C1A Cyanogen is obtained by initially reacting HCN and C1 2  on a surface active catalyst (i.e. carbon) and then treating the gas mixture still containing HCN with 1À0 to 1À1 mols of Cl 2  per mol of HCN on a surface active catalyst at 195-800‹ C. for 10 seconds to 0À01 second. In a preferred embodiment the initial stage is carried out in two steps. In the first step the HCN and Cl 2  are reacted in a mole ratio of 1 : 1 or less and a residence time of greater than 10<SP>-3</SP> second and the residual amount of HCN required to use up the excess Cl 2  is directly introduced to the second reactor together with the gas mixture from the first reactor.
Patent GB-568437-A (GB)
Title: Improvements in or relating to electronic valves
IPC: H01J19/46
Filed: 1943-03-29
Abstract: 568,437. Thermionic valves. ERBER, B. March 29, 1943, No. 22073/44. Divided out of 568,411. [Class 39 (i)] The spacers for the electrodes of electronic valves consist of plates of mica 6, 7, Fig. 8, hinged together at one end 9 by hollow rivets and similarly secured at the other end so as to hold the electrode supports by frictional engagement with their edges 19 only. Preferably, the edges are serrated so as to collapse locally in engagement with the electrode supports. In the assembly of the valve, the electrodes are positioned by a jig as described in Specification 568,411.
Patent GB-293590-A (GB)
Title: Improvements in or relating to cooling arrangements for dynamo electrical machines
IPC: H02K1/20
Filed: 1927-08-22
Abstract: 293,590. Blßthy, O. T. Aug. 22, 1927. Addition to 285,845. Dynamos and motors, cooling and ventilating. -In an arrangement for cooling dyamo-electric machines involving the concurrent use of air and liquid cooling, as described in the parent Specification, the stator laminae adjoining the water cooling-elements are provided with radial slots extending beyond the outer and inner peripheries of the elements and forming passages for the rotor cooling air. Also box-like conduits are formed for the liquid entry to and exit from the elements, these conduits having removable lids for giving access to the openings in the elements. Fig. 2 shows the relative disposition of the liquidca.rrying elements c and slots r in the stator iron and Fig. 1 is a radial section showing the elements in the space w between two groups of laminae b, b'. The slots extend radially beyond the elements at s, q so that the rotor air passes, as shown by the arrows, over the elements which between the slots are in thermal contact with the stator laminµ. Alternatively, the slots may be replaced by thermally conducting radial spacing ribs Fig. 3, bounding radial air ducts r, entry to and exit from which is given by holes z<1> and incisions z<2>, Fig. 2, in the adjoining laminae. The ribs may, alternatively, be stamped up in the laminµ. Fig. 4 shows the conduits d, e into which the round-sectioned ends c<2> of the flattened. tubular elements c<1> are fitted. Removable lids d<1>, e<1> give access to the ends of the elements for blocking off any of them.
Patent GB-864619-A (GB)
Title: Improvements in tie rods for forms for casting concrete structures
IPC: E04G11/28
Filed: 1957-07-12
Abstract: 864,619. Shuttering for casting concrete. WILLIAMS, C. I. July 12, 1957, No. 22135/57. Class 20(2) [Also in Group XXV] Shuttering for casting concrete is held in place by a pigtail anchor 10 cast in a previous course on which is screwed a bolt 6 having an adjusting nut 12, with an operating handle 25, bearing on or fixed to a plate 11 on the outer side of a strong back 7 carrying the shuttering panel 7<SP>1</SP>. The bolt 6 may be adjusted by means of a spanner after a closure 28 has been swung aside. The plate 11 is secured to the strong back by nail 35 and the nut 12 may be accommodated in a slot in the plate which is provided with inclined ribs on each side engaged by the nut so that the nut and the bolt may be moved to engage anchors 10 at different angles. The inclination of the shuttering is adjusted by a jack 14.
Patent GB-786674-A (GB)
Title: Improvements relating to hinges for doors of cabinets and the like
IPC: E05D5/06
Filed: 1955-08-02
Abstract: 786,674. Hinges. GREENMAN, C Aug. 2, 1955, No. 22156/55. Class 65(2) A hinge comprises a leaf 10 secured to a front vertical edge 23 of the body of a cabinet (or like) and a leaf 11 secured to the inside face of a door 21. the leaves being pivotally connected at 14 adjacent an outer vertical edge of the door 21. Holes in the leaf 11 for securing screws 22 are elongated to provide adjustment in hanging the door.
Patent GB-1177084-A (GB)
Title: The Antibiotic Azomycin and Derivatives thereof
Inventor: LANCINI GIANCARLO
IPC: C12R1/465
Filed: 1966-05-18
Abstract: 1,177,084. Azomycin and derivatives thereof. GRUPPO LEPETIT S.p.A. 3 May, 1967 [18 May, 1966], No. 22168/66. Heading C2A. The antibiotic azomycin or a derivative thereof, which is a 2-nitroimidazole of formula wherein R is C 1  to alkyl and n is 0, 1 or 2, is prepared by subjecting a 2-aminoimidazole of general formula wherein R and n have the above meaning, to the enzymatic activity produced by the fermentation of Stretpomyces eurocidicus var. nitrooxydans ATCC 19551, and recovering the 2- nitroimidazole so produced from the fermentation broth. The micro-organism is cultivated in a conventional aqueous nutrient medium, the 2-aminoimidazole added and cultivation continued at 25-30 C. for 12 to 72 hours. When 2-aminoimidazole is added, the product is azomycin, i.e. 2-nitro-imidazole. The microorganism itself produces azomycin; hence, for the preparation of the alkyl derivatives of azomycin, it is preferred to separate the mycelium from a fermentation broth and to oxidize the 2-amino compound to 2-nitro by means of a suspension of the mycelium in an aqueous phosphate solution buffered at pH 6À5. The compounds have anti-protozoal properties.
Patent GB-1101168-A (GB)
Title: Process for the preparation of high polyesters
IPC: C09D167/02
Filed: 1965-05-25
Abstract: Fibre-forming polyesters of a high degree of polymerization are obtained by adding to a molten polyester having an intrinsic viscosity not less than 0.35 (calculated from measurements made on the o-chlorophenol solution) and derived from a dicarboxylic acid and a dihydric alcohol, or ester-forming derivatives thereof, a diaryl ester of a dicarboxylic acid, the aryl groups containing 6-20 carbon atoms, and then heating the system, optionally in the presence of a condensation catalyst under reduced pressure and/or in an inert gas stream.  The amount, M, of diaryl dicarboxylate added at any one time should not exceed the value given by M\sE[c 0]2 - 3.5[c 0] + 3.2 mol per cent of the acid component of the polyester, where [c 0] is the intrinsic viscosity of the polyester at the time of the addition. Preferably a total not less than [ 1/5 M + 0.01] mol per cent should be added.  Suitable polyesters may be obtained from e.g. terephthalic, isophthalic, or phthalic acids, which may be alkyl or halo substituted, or from naphthalene-, diphenyl-, diphenylsulphone-, diphenylketone-, diphenyl ether-, or diphenylmethane - dicarboxylic acids, adipic, sebacic, or cyclohexane-dicarboxylic or -diacetic acids, or e.g. their methyl ethyl or propyl esters, and from e.g. ethylene-, propylene-, trimethylene-, hexamethylene-, decamethylene-, neopentylene-, cyclohexylene-, xylylene- or cyclohexanedimethylene-glycols or from ethylene or propylene oxide or carbonate, and optionally also, e.g. p-b -hydroxyethoxybenzoic acid. The acid component of the diaryl dicarboxylate may be oxalic acid or a benzene-, naphthylene-, diphenyl-, diphenylmethane-, diphenyl ether-, diphenylsulphone-  or chloro-diphenylethane-dicarboxylic acid, or adipic acid, azelaic acid, neopentane dicarboxylic acid, cyclohexane dicarboxylic acid, cyclohexane diacetic acid, the diterephthalic ester of cyclohexane dimethanol, or an acid ended condensate of terephthalic acid and ethylene glycol.  The aryl group may be, e.g., phenyl, phenylphenyl, naphthyl, tolyl, xylenyl, methylnaphthyl, halonaphthyl, phenoxyphenyl, chlorophenoxyphenyl or phenylsulphonylphenyl. In the Examples 1-16, 18 and 23-24 there are added to polyethylene terephthalate polyesters diphenyl terephthalate, di-o-methylphenyl isophthalate, diphenyl isophthalate, diphenyl adipate, diphenyl sebacate, diphenyl monoethylene diterephthalate and diphenyl diethylene triterephthalate; in Examples 17 and 20-21 diphenyl terephthalate is added to polyethylene isophthalate/terephthalate, polycyclohexane - dimethylene terephthalate and a polyethylene terephthalate/ p-hydroxyethoxybenzoic acid polymer; in Examples 19 and 22 di-o-(p-ethylphenyl)phenyl isophthalate and di-o-phenylphenyl oxalate are added to polyethylene isophthalate and polyethylene sebacate respectively.
Patent GB-1532686-A (GB)
Title: Liquid-jet printing
IPC: B41J3/407
Filed: 1977-05-31
Abstract: 1532686 Selective printing STORK BRABANT BV 31 May 1977 [28 May 1976] 22361/76 Heading B6F In an ink jet printer the flight path of the or each jet towards a record medium is located in a space maintained at subatmospheric pressure. Preferably the whole of the print head is located inside a chamber where the pressure is less than 160 torr.
Patent GB-810829-A (GB)
Title: Improvements in continuous flow internal combustion engines, and in particular jet propulsion engines, including one or more flame tubes placed in the gaseous stream flowing through said engines
IPC: F02K7/10
Filed: 1955-08-04
Abstract: 810,829. Generating combustion products under pressure. ZBOROWSKI, H.P.G.A.R. VON. Aug. 4, 1955 [Aug. 6, 1954], No. 22398/55. Class 51 (1). In combustion equipment for an engine such as a ram jet engine, a gasturbine jet-propulsion engine or a gasturbine propeller engine through which a continuous stream of combustionsupporting gas, such as air, flows, at least one flame tube is provided within an outer casing, the flame tube being made in the form of a subsonic ram-jet engine having a thickened upstream portion with a rounded leading edge forming a substantially unrestricted inlet opening followed by a flared diffuser portion connected to a thin downstream portion. The flame tube is shaped so that pre-compression of the gaseous stream upstream of the inlet thereof is produced in operation. The cylindrical flame tube 1 in Fig. 1 has a rounded leading edge 1a and fuel is supplied through injectors 2. A flamestabilizing baffle 4 and an igniter are provided. In a second embodiment, Fig. 2, the fuel is supplied through injectors 2a and 3 disposed upstream of the flame tube, fuel from the injectors 3 passing over the outside of the flame tube. In Fig. 3 the fuel injectors are shown at 2b and 3, fuel from the injectors 2b entering the flame tube and fuel from the injectors 3 flowing over the outside of the flame tube. Means may be provided to spread the flame, for example, orifices may be provided in the flame tube or the downstream end of the flame tube may be corrugated, or it may be slit longitudinally and the strips between the slits bent alternately inwardly and outwardly. In Fig. 9 two tubes 8 and 9 are disposed coaxially at the downstream end of the flame tube, the core of combustion gases flowing through the tube 8, and combustion gases and air flowing through the annular duct between the tubes 8 and 9. The flame tubes described above are of tubular form, but in further embodiments for example as shown in Fig. 11, the flame tubes 1 are each of annular form, the leading edges 1a being rounded as before.
Patent GB-397668-A (GB)
Title: Automatic byepass for hydro-electric steering apparatus
IPC: B63H25/28
Filed: 1932-08-10
Abstract: 397,668. Steering-gear for ships. ETABLISSEMENTS P. DUCLOS, Boulevard Sardou, Marseilles, France. Aug. 10, 1932, No. 22441. Convention date, April 15. [Class 114.] A hydro-electric steering-gear including two independent sets of rams and an independent pump and motor unit for each set is provided, has an independent automatic by-pass associated with each set whereby the helm may be operated in case of failure of one pump and motor by the single remaining pump and motor. A set of rams P connected to pumps p by pipes 1, 2 and having control boxes A, C which permit of the pumps being operated from a distance, are further connected by pipe lines 3, 4 with valve boxes D. Each box D contains two valves 7, 8 in the pipe lines 5, 6 and there is a further control valve 10 and piston 9 which controls the pipe lines 3, 4. In the result of failure of a pump or motor so that one pump no longer delivers while the other continues to function, the valves in the boxes A, C isolate the damaged pump. The pipes 5, 6 are then no longer under pressure so that the piston 9 is released and allows the by-pass valve 10 to lift. The pipes 1, 2 are therefore placed in communication instantaneously and automatically and the rams of the damaged apparatus are left free to move. Specification 360,458 is referred to.
Patent GB-140972-A (GB)
Title: Improvements in furnaces for burning low grade fuel
Filed: 1919-09-12
Abstract: 140,972. Cotton, F. Sept. 12, 1919. Furnace fire-places; refuse fuel, furnaces for burning.-Low-grade fuel such as lignite, peat, or mill waste, is burnt in a deep solid-bottom chamber by means of preheated air directed into the heart of the fuel mass bv jets of superheated steam. The chamber has a level bottom 11 and slopes upwardly at the rear to a bridge 15. Preferably, a number of chambers are arranged side by side, the separating wall 10 stopping short of the crown 14 so that the gases &c. from adjacent chambers intermingle, and each chamber is of such a width, namely, about two feet, that there is adequate but not excessive penetration of the fuel by the blast. The blast issues from a front opening 21 and from openings 20 in the central partition and side walls and rather towards the rear, these latter openings leading from preheating passages in the walls, each supplied with air and superheated steam by an opening and jet such as 21, 22.
Patent GB-849645-A (GB)
Title: Improvements in injection moulding machines
Inventor: SMITH SAMUEL CHARLES HENRY
IPC: B29C45/52
Filed: 1958-07-14
Abstract: 849,645. Injection-moulding machines. WINDSOR Ltd., R. H. June 24,1959 [July 14, 1958]. No. 22464/58. Class 87(2). A ring 9 slidably mounted in an injection chamber 6 in advance of a rotatable and axially reciprocable screw conveyer 5, acts as a non-return valve during the injection stroke of the conveyer 5. Fig. 1 shows the ring 9 in the position it assumes while material is being fed by rotation of the screw. During injection the end 5c of the screw seats against a similar surface 9b on the ring. A ball-headed member 7 having channels 7d is threaded into the screw conveyer 5. In a modification, Fig. 5 (not shown), the injection, chamber comprises two detachably connected flanged portions, the forward portion being of greater diameter than the rear portion. Specification 760,480 is referred to.
Patent GB-785383-A (GB)
Title: Process and apparatus for demetallizing a metal carbonyl-containing gas
Inventor: CARTER CHARLES ELLSWORTH
IPC: C07C45/85
Filed: 1955-08-04
Abstract: Carbon monoxide and hydrogen are reacted with an olefin in the presence of a cobalt or iron catalyst in a hydroformylation reaction zone at elevated temperature and pressure to obtain a product comprising an aldehyde, unreacted carbon monoxide and hydrogen, and at least one metal carbonyl; the unreacted synthesis gas (i.e. hydrogen and carbon monoxide) carrying at least one metal carbonyl is subsequently recovered from the reaction product and is recycled to the hydroformylation zone, being demetalled during the recycling process by passing it along with heated fresh synthesis gas to a demetalling chamber, the amount and temperature of the fresh synthesis gas being adjusted so that the temperature of the mixture of fresh synthesis gas and recovered synthesis gas is higher than the decomposition temperature of the metal carbonyl present with the highest decomposition temperature; any metal carbonyl present is thereby decomposed, free metal being deposited in the demetalling chamber, and the mixture of fresh synthesis gas and recovered synthesis gas, free of metal carbonyl and free metal, is passed to the hydroformylation zone.  In addition to the carbonyl formed from the catalyst it is possible to have present in the product from the hydroformylation zone the carbonyls of iron, nickel, chromium and molybdenum, which may be present in the walls of the reactor. When cobalt is employed as the catalyst it is preferred to have the demetalling chamber divided into two zones, one being a decobalting zone and the other being a zone in which the other metal carbonyls are decomposed.  In an example an olefine, such as heptene, is reacted with a mixture of carbon monoxide and hydrogen in the presence of a cobalt salt of a fatty acid, e.g. naphthenic acid; the reaction product is cooled and the unreacted carbon monoxide and hydrogen, containing cobalt carbonyl with or without other metal carbonyls is passed with fresh synthesis gas to a demetalling chamber; after demetalling, as described above, the synthesis gas is recycled to the hydroformylation zone.
Patent GB-256413-A (GB)
Title: Improvements in the manufacture of composite metal rods or tubes
IPC: B23K20/227
Filed: 1925-09-09
Abstract: 256,413. Desoutter, C., and Desoutter Bros., Ltd. Sept. 9, 1925. Cased or compound forms; rods; tubes. - A compound rod or tube stated to be of use in the manufacture of the joints of artificial limbs &c. is built up of a member of relatively soft metal, e.g. aluminium or aluminium alloy, provided with a sheath of harder metal, e.g. steel. Soft metal tubes may be lined with a harder metal. In sheathing a rod or tube, a casing of slightly smaller bore than the soft tube or rod is first expanded to enable it to be placed on the tube &c. and the compound tube &c. thus formed is passed through a reducing die. In lining a soft metal tube, a lining of harder metal of slightly larger external diameter than the bore of the softer tube is first reduced to enable it to be inserted in the softer tube, after which a bulletshaped die is drawn through the tube to expand the lining into contact with the sleeve. The compound tube is then passed through a reducing die.
Patent GB-405563-A (GB)
Title: Improvements in methods of making lock washers
IPC: F16B39/24
Filed: 1933-08-12
Abstract: 405,563. Lock - washers. CLAYTON, C. E. EVERY-, 51, Chancery Lane, London.- (Shakeproof Lock Washer Co. ; 2501, North Keelor Avenue, Chicago, U.S.A.) Aug. 12, 1933, No. 22595. [Class 89 (i).] Lock-washers comprise overlapping prongs 16 and are formed from strip stock, the end prongs being welded at 26. The periphery may be polygonal or circular. Specification 389,369 is referred to.
Patent GB-598437-A (GB)
Title: Improvements in door latches or fastening devices
IPC: E05C19/06
Filed: 1945-09-04
Abstract: 598,437. Catches. BELLING & CO., Ltd., and BELLING. C. R. Sept. 4, 1945, No. 22697. [Class 44] In a door catch, particularly for ovens, refrigerators &c. of the kind comprising a spring- urged roller on one part co-operating with a cam member c on the other part, the roller d is secured at the outer end of a leaf spring e, the inner end of which is anchored to one of the parts, and means such as a sliding sleeve fare provided to vary the effective stiffness of the spring. Several cam members c, or a continuous strip of triangular section may be provided to co-operate with a munber of rollers.
Patent GB-1260253-A (GB)
Title: Cutting and stripping apparatus for insulated conductor wire
IPC: H02G1/12
Filed: 1970-05-11
Abstract: 1,260,253. Pivoted cutters. GARDNER DENVER CO. 11 May, 1970 [5 Nov., 1969], No. 22697/70. Heading B3W. [Also in Division H2]  Apparatus for simultaneously cutting and stripping the end of insulated conducting wire 106 comprises a frame 23 with a flanged slot 28 used to mount the apparatus on another tool, blades 90 to cut the insulation, and, mounted on an adjustable support 44, blades 48 to cut the wire. In operation, handle 70 is depressed, thus rotating the flat sided cam 58, Fig. 4, which causes both sets of blades to rotate about axis 50, cutting the wire and severing the insulation at a predetermined distance from the end. To obtain a clean cut both sets of blades partially overlap when closed, but are normally biased open with springs.
Patent GB-230376-A (GB)
Title: Improvements in or relating to pneumatically operated percussive hand tools
IPC: B25D9/14
Filed: 1924-09-26
Abstract: 230,376. Stevens, C. H. Sept. 26, 1924. Fluid-actuated gears. - A disc valve v is mounted in an aperture u of a disc d mounted between discs c, c<1> housed in members a, b situated between the cylinder and handle of a percussive tool. The discs are centred by flanges f, f<1>, and the ports aligned by a dowel pin. Air ports g, g' lead to the lower valve face which controls cylinder ports o, j<1> leading to the upper end of the cylinder. Similarly the upper surface of the valve controls a supply through ports o to the lower end of the cylinder. The valve is reversed when the exhaust port p is opened. A supplementary exhaust from below the piston is effected by an ejector r which is supplied with pressure fluid through a valve controlled port q and a suction port connected to port o.