baber/WOPTO huggingface dataset:
Patent GB-760856-A (GB)
Title: Improvements in and relating to bag filters
Inventor: SCHEIDT WALTER
IPC: B01D29/39
Filed: 1954-06-25
Abstract: 760,856. Filters. SCHEIDT, W. June 25, 1954, No. 18665/54. Addition to 713,698. Class 46. The main invention is further characterized in that the filtrate outlet pipe is provided on each side of the outlet slot or openings with spreading holders extending along the side walls of the bag and downwards to a suitable distance from the filtrate outlet slot or openings. The outlet pipe a, Fig. 1, has on its bottom side a longitudinal slot divided into a plurality of separate openings by an inserted helical wire g, Figs. 1 and 3, and is formed as an inverted U- sectioned member having two arms a1 Fig. 3, extending divergently along the walls of the filter bag h and downwards to such a distance as to prevent collapsing of the bag into the outlet openings. The spreading device may alternatively be a member of approximately the same shape as shown in Fig. 3, but additional to, and clamping onto, the outlet pipe. In a further form the device comprises series of separate members arranged at a distance from and opposite one another, and placed in the gaps between the chains f. Fig. 1.
Patent GB-435849-A (GB)
Title: Improvements in or relating to liquid fuel stoves
IPC: F24C5/02
Filed: 1935-07-01
Abstract: 435,849. Liquid-fuel stoves. McKAY, G. R., 627, West Derby Road, and FLETCHER, H., Lynton, Sandfield Park, West Derby, both in Liverpool. July 1, 1935, No. 18717. [Class 75 (i)] A stove for burning methylated spirit or similar fuel comprises a stand a mounted on legs b and having an upstanding flange e for receiving a sheet metal fuel reservoir f. The reservoir f communicates with a horizontal fuel pipe h which passes through brackets a<1> on the stand and is fitted with needle valve j<1> controlling the fuel delivery to a pipe l having an upturned end l<1> forming the burner. The flame emitted from the burner l<1> impinges directly on the pipe h to effect vaporization of the fuel and is spread by a deflector n. A dish m catches any unvaporized fuel emitted from the burner. Air is admitted to the reservoir f when the burner is in operation through an aperture o<1> which is uncovered by the rotation of a plate p having apertures p<1> left by the formation of finger grips p<2>. Stops o<2> limit the movement of the plate p.
Patent GB-1465926-A (GB)
Title: Process for the manufacture of a support having one or more raised areas thereon
IPC: G03G13/32
Filed: 1974-04-30
Abstract: 1465926 Making printing plates electrophotographically; etching HOECHST AG 30 April 1974 [2 May 1973] 18819/74 Headings B6C and B6J [Also in Division G2] A printing plate or printed circuit board, having a pattern of raised and depressed areas on it, is made by forming an electrostatic charge image on a resistive or photoconductive layer, overlaying a substrate, developing with a toner which without fixing renders the image areas of the layer insoluble in, and resistant to wetting by, a liquid agent and removing the non-image areas of the layer by application of the liquid agent. Preferably the layer is photoconductive, and includes a resin soluble in an aqueous or alcoholic solvent. Development is with a wax, paraffin or bitumen toner, dispersed in an insulating liquid carrier. Removal of the layer by, e.g. a 5% aqueous solution of phosphoric acid or an alcohol with sodium metasilicate or ethanolamine reveals a metal, plastics material or metallized plastics material substrate, which may be etched. Photoconductors, resins, substrate materials, toners, carrier liquids and layerremoving liquids which can be used are listed.
Patent GB-473786-A (GB)
Title: Improvements in or relating to mechanism for delivering cork or similarly tipped cigarettes from a continuous rod cigarette making machine
IPC: A24C5/32
Filed: 1936-07-08
Abstract: 473,786. Cigarette-making machines. LOUDEN, W. H. July 8, 1936, No. 18906. [Class 130] A conveyer belt 1 carries cork or similarly tipped cigarettes lengthwise from a continuous rod machine, beneath one or more rotary vanes 8 on a shaft 6 ; the vanes engage with alternate cigarettes and displace them on to a parallel conveyer belt 2. The cigarettes on the belts 1, 2 are discharged on to belts 9, 12 and delivered as separate batches into a hopper 13.
Patent GB-1037757-A (GB)
Title: Snack products
Inventor: PEDEN MERLE FRANCIS
IPC: A23L1/18
Filed: 1965-05-05
Abstract: 1,037,757. Snacks. GENERAL MILLS Inc. May 5, 1965, No. 18981/65. Heading A2B. A snack product having a rippled surface is prepared by extruding a dough to form a strand, case hardening the strand, flattening, and puffing. The strand may be solid or tubular and is preferably 1/32-1 inch diameter. The case-hardening may be effected by passing air over the strands, either at 20-150‹C. for 10-60 mins., or with cold air and freezing the strands. The flattening may be effected by passing through rollers, and the puffing effected by deep fat frying preferably at 175-235‹C. for 5-60 secs. The strand may be tempered prior to puffing. Suitable doughs include wheat, corn, and oat, and is preferably partially cooked before extrusion. Seasonings and flavourings such as salt may be added. In an example, ,the dough consisted of cornflour, potato flour, wheat starch, sugar, salt, and water.
Patent GB-959175-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/12
Filed: 1963-05-14
Abstract: 959,175. Chucks. ROBERT BOSCH G.m.b.H. May 14, 1963 [May 15, 1962], No. 18988/63. Heading B3B. [Also in Division B4] A chuck comprises a body 10, Fig. 1, having three bores 11, clamping jaws 12 in the bores having teeth 13 engageable with a geared rim 15 connected to a sleeve 14, and a rubber or like ring 17 fitted in a recess 16. Bores 11 are offset from each by 120 degrees, and as rim 5 is rotated by a spanner which engages a bore 19 and teeth 20, the drill 18 can be clamped and ring 17 deformed, thus preventing accidental slackening of sleeve 14 by friction. In a modification, Fig. 2, ring 17 is replaced by a semicircular disc 23, to provide the frictional resistance between sleeve 14 and body 10.
Patent GB-206815-A (GB)
IPC: A43B13/12
Filed: 1923-07-24
Abstract: 206,815. Enna, E. F. H., and S÷rensen, M. M. Nov. 13, 1922, [Convention date]. Compound sheet materials.-The leather bottom units of shoes are united to the lasted upper by interposing between these parts a ribbon or thin layer of caoutchouc in the form of unvulcanised crude or crepe rubber and then submitting these parts to pressure without vulcanisation, sewing, glueing or other fastening means. Two layers of caoutchouc may be used, one being applied to each of the meeting parts. The Specification as open to inspection under Sect. 91 (3) (a) states also that the meeting parts may receive a preliminary coating of rubber solution, and that this method of uniting parts may be applied to uniting various component parts of shoes. This subject-matter does not appear in the Specification as accepted.
Patent GB-680734-A (GB)
Title: Adducts of 22-acyloxybisnor-5, 7, 9 (11), 20 (22)-cholatetraenes
IPC: C07J75/00
Filed: 1950-07-31
Abstract: Adducts of 3,22-diacyloxybisnor-5,7,9(11), 20(22)-cholatetraenes of the formula <FORM:0680734/IV (b)/1> where B is an acyloxy group derived from an organic monobasic acid, A is an adduct radical derived from maleic acid anhydride and maleic acid diesters and wherein "acyloxy" is an acyloxy group, e.g. acetoxy derived from an unsubstituted monobasic organic acid containing from one to ten carbon atoms inclusive; are obtained by a process which includes the steps of (a) heating together at a temperature between 100 DEG  and 180 DEG  C., (1) the corresponding bisnor-5,7,9(11)-20(22)-cholatrien-22-al with an excess of (2) the anhydride of an organic carboxylic acid containing from one to ten carbon atoms inclusive in the presence of (3) an acid catalyst or an alkali metal salt of the acid corresponding to the anhydride (2) employed; (b) removing excess anhydride (2); and (c) recovering the thus produced 3,22-diacyloxybisnor - 5,7,9(11),20(22) - cholatetraene adduct from the reaction product.  Specification 680,733 is referred to.
Patent GB-996267-A (GB)
Title: Improvements in or relating to pressure exchangers
Inventor: SPALDING DUDLEY BRIAN
IPC: F04F13/00
Filed: 1962-05-17
Abstract: 996,267. Pressure exchangers; rotary motors. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. May 16, 1963 [May 17, 1962, June 14, 1962], No. 19146/62, 22889/62 and 22890/62. Addition to 936,427. Headings F1F and F1N. In a pressure exchanger having cells of variable volume formed by radial vanes 2, Fig. 1, slidably mounted round the periphery of a rotor 1 surrounded by a shroud 5 and disposed between end plates 6, 7 connected to ducting as claimed in the parent Specification high pressure gas is admitted through a duct 11, Fig. 2, and a port 8 to the cells at their position of minimum volume and also through a duct 12 and a port 10 at a position displaced from that of minimum volume in the direction of cell rotation thereby assisting starting of the cells which are self-driving. A non- return valve 13 automatically closes as pressure build-up proceeds. Each vane has lugs 2a, Fig. 3 (not shown) tracking guideways in the end plates and in a modification rotor end caps 21, 22, Fig. 5, are secured by bolts 23 and have bores 29, 30 by which cooling fluid may be passed through the rotor 1. A power take-off shaft may be secured to either end caps 21, 22.
Patent GB-348934-A (GB)
Title: Improvements in rontgen tubes
IPC: H01J35/14
Filed: 1930-06-24
Abstract: 348,934. R÷ntgen-ray tubes. SEABROOK, H., 31, Bedford Street, London.- (M³ller Akt.-Ges. C. H. F. ; 93, Hammersbrookstrasse, Hamburg, Germany.) June 24, 1930, No. 19240. [Class 39 (i).] In a R÷ntgen-ray tube having an incandescent cathode and a collector, which are connected to a disperser through a device such as a resistance in order that the area of the elongated focal spot may vary automatically in accordance with the load, the narrow shape of the focal spot is retained at high loads by the use of a collector of elongated outline which is mounted around a plate-shaped or flattened cathode from which a disperser projects axially. As shown, a metallic dispersing pin C, Fig. 2, is mounted in a spiral cathode 1 which is connected to a heating transformer by a wire 7 and by a wire 8 through a flattened collector 2. In a modification, the cathode consists of a ring- shaped helix 15, Fig. 6, the ends of which are connected to tubes 16.
Patent GB-688453-A (GB)
Title: Treatment of bitumen-coated aggregates to permit them to be stored
IPC: C08L95/00
Filed: 1951-08-15
Abstract: Bitumen coated aggregate is treated with a metal salt of a water soluble petroleum sulphonic acid.  This reduces agglomeration on storage.  The preferred salt is the sodium salt as a 20 per cent aqueous solution.
Patent GB-1207096-A (GB)
Title: Process for producing l-serine
IPC: C12P13/06
Filed: 1969-04-15
Abstract: 1,207,096. L-Serine. KYOWA HAKKO KOGYO CO. Ltd. 15 April, 1969 [18 April, 1968], No. 19263/69. Heading C2C. L-Serine is prepared by culturing an L-serine producing micro-organism belonging to a genus Arthrobacter, Brevibacterium or Corynebacterium under aerobic conditions in aqueous nutrient medium in the absence of D,L-glyceric acid and isolating L-serine from the broth for example, by ion exchange. Specific microorganisms mentioned are Arthrobacter paraffineus ATCC 21218 or ATCC 21219, Brevibacterium ketoglutamicum ATCC 21222 and Corynebacterium hydrocarboclastus ATCC 21221.
Patent GB-1166422-A (GB)
Title: Magnetostrictive Transducer Apparatus
IPC: B06B1/08
Filed: 1968-04-24
Abstract: 1,166,422. Agitating by ultrasonic vibrations. WESTINGHOUSE ELECTRIC CORP. 24 April, 1968 [8 June, 1967], No. 19301/68. Heading B1C. [Also in Division H4] A plate 8 which forms the bottom of a cleaning tank 11 or the working wall of an immersible transducer (not shown) has thin, rectangular, non-magnetic coupling members 6 connected thereto at one end for transmission of vibrational energy, layers 7 of magnetostrictive material of less width than the coupling member secured to opposite faces of each coupling member 6, and energising coils 10 electromagnetically coupled to the magnetostrictive layers 7. Members 6 are preferably of aluminium, and layers 7 are of nickel, bonded to members 6 by epoxy resin. The layers 7 cover about one half the surface of members 6 and are centrally disposed for maximum vibratory effectiveness. The height of members 6 and are centrally disposed for and the height of layer 7 is #/4. The members 6 are in groups 9 bonded by epoxy cement to the plate 8, the elements 5 in each group abutting one another at their magnetostrictive layers. Each alternate group 9 is provided with a preformed energising coil 10.
Patent GB-931783-A (GB)
Title: New steroid compounds, and processes for their preparation
IPC: C07J41/00
Filed: 1960-06-01
Abstract: The invention comprises compounds having the formula: <FORM:0931783/IV(a)/1> in which R1 reprents hydrogen or an acyl radical and X and Y are either both hydrogen or represent a 1,2-double bond, and processes for the production thereof by subjecting adrenosterone to nitrosation followed by reduction, e.g. with zinc and acetic acid, to form the corresponding 17-hydroxy-16-one-derivative, subjecting the product to the successive steps of esterification at the 17-position, protection at the 3-position, followed by reduction at the 11-position, e.g. with sodium borohydride, and saponification to remove the 17-ester group, ethynylating the 11-hydroxy product at the 16-position by means of acetylene in a basic medium and then regenerating the 3-ketone function to yield the desired 11b ,16b -dihydroxy-16a -ethynyl-androst-4-en-3-one, which can then, if desired, be converted by acylation into the corresponding 11-acyloxy compound and/or transforming into the corresponding compound having a 1,2-double bond, e.g. by means of Corynebacterium simplex.  Specifications 788,895, 931,784 and 931,785 are referred to.
Patent GB-871967-A (GB)
Title: Production of alloys of polyvalent metals
IPC: C22C1/02
Filed: 1958-06-17
Abstract: Alloys are made by melting in a vacuum arc, the crystal intergrowths of a metal of Group IVA, VA, VIA (and particularly Ti and Zr), and a metal selected from Fe, V, Cr, Mn, Mo, Al and Sn, said intergrowths containing less than 0.03% of oxygen and obtained by the fusion electrolysis process described in Specification 856,588.  The first stage of forming the crystal intergrowths is effected using a super-saturated solution of e.g. Ti or Zr in an electrolyte consisting of alkali metal or alkaline earth metal chloride and a little sodium metal, and using impure titanium in comminated form as anode, and adding TiCl4 to the electrolyte.  The impure Ti anode contains V, Al, Fe &c. which is deposited with Ti on a screw interposed between cathode and anode.  The alloying element may be added to the electrolyte in the form of a chloride e.g. FeCl3 or the crystals when collected and washed mixed with another metal e.g. Mn, Mo before melting e.g. in a water-cooled copper hearth at 1 micron argon pressure.  Graphs are given showing (1) the strength and hardness of such alloys of low oxygen content, and (2) that only small amounts of alloying elements are required e.g. 1-10% to form stable b -phase alloys resistant to change of characteristics by quenching, annealling or other heat treatment.  Titanium alloys containing alloying metals in following ranges are exemplified. Fe up to 50%, V up to 20%, Mn up to 20%, Cr up to 25%, Mo up to 10%, Al up to 20%, Sn up to 3%.  Mixed alloys containing .5% Fe and .25% Al; 3% Cr and 1% Al are described.  Alloys of zirconium and vanadium with also titanium are also exemplified These alloys for use at high temperatures in an oxidizing atmosphere, and especially Ti alloys containing 6-20% of Al, and 2% V are rendered non-corrodible by heating in air at 1200 DEG -1400 DEG C. for a long period.
Patent GB-948603-A (GB)
Title: Industrial trucks
IPC: B62B3/06
Filed: 1962-05-21
Abstract: 948,603. Castors. YALE & TOWNE MANUFACTURING CO. May 21, 1962 [June 22, 1961; Jan. 11, 1962], No. 19412/62. Heading A4U. An industrial truck has a castor unit 11 mounted on links 30, 31 pivoted to the truck frame 29 to permit lateral movement of the castoring axis, as the wheel changes direction, in order to minimise scuffing of the tyres on the floor In a modification Fig. 4a permitting universal lateral movement of the castor axis the truck frame 30a is suspended from a plate 24a, carrying the castor, by four links 29a pivotallysecured at their upper and lower ends by ball and socket type universal joints. Specification 809,554 is referred to.
Patent GB-516455-A (GB)
Title: Improvements relating to cathode ray tubes
IPC: H01J29/48
Filed: 1938-06-30
Abstract: 516,455. Cathode-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. June 30, 1938, No. 19444. Convention date, June 30, 1937. [Class 39 (i)] In a Braun tube emission is from a cold cathode K of point form ; it may project from a control electrode S, from which it is insulated. Emission is obtained by high voltage applied to a gauze or film N between the cathode and a lens E1-E3. The voltage of the first lens electrode E1 is less than that applied to the gauze. Alkaline coating may be applied to the point K.
Patent GB-596829-A (GB)
Title: Process for preparing catalysts
IPC: B01J27/049
Filed: 1945-07-30
Abstract: Catalysts comprising mixed sulphides of one of the elements molybdenum and tungsten and of a metal of the iron group are prepared by treating an aqueous alkaline solution of a salt of a thioacid of the element with an aqueous solution of a water-soluble salt of the metal and with a water-soluble acid at 20 to 50 DEG C. whereby the mixed sulphides are precipitated, the thioacid salt solution containing sulphide ions at least equivalent to the metal and the acid being added to give a pH between 1 and 3.  The precipitated sulphides may be separated from the surrounding liquid, and dried in a reducing atmosphere at say 250 to 500 DEG C.  The thioacid salt may be prepared by treating a salt of an acid of the element with, for example, ammonium or sodium sulphide, or hydrogen sulphide between 35 DEG  and 55 DEG C.  Thus tungstic acid may be suspended in water and 10-35 per cent. aqueous ammonia added thereto to form a solution of ammonium tungstate which is warmed between 20 DEG  and 50 DEG C., e.g., 40 DEG C. Excess of hydrogen sulphide is added, then a solution of nickel nitrate to precipitate nickel sulphide and then dilute sulphuric acid to give a pH of 1-2 and to precipitate tungsten trisulphide. After standing, the sulphides are separated by centrifuging &c. and calcined at 400 DEG -425 DEG C. in a stream of hydrogen or hydrogen sulphide.  After cooling, the resultant granules are crushed and pilled.  The preferred composition is W:1.5-2Ni:3-4S. In general, the molal ratio of tungsten to iron-group metal should be between 1:2 and 2:1, and the sulphur content of the product should be between 23 and 35 per cent.  The heat treatment may be carried out in two stages, first, by heating to about 100 DEG C until the evolution of steam ceases, then by heating at the increased temperature in the stream of reducing gas, the time being adjusted to give material which forms pills easily.  The product is suitable for dehydrogenation of cyclohexane-type naphthenes. Regeneration after use may be carried out by passing preferably diluted sulphur dioxide through the catalyst bed at temperatures between, e.g., 400 DEG  and 600 DEG C., or by burning with oxygen-containing gases, or by treatment with steam and air and resulphiding with hydrogen sulphide at 400-500 DEG C.  Specification 488,651 is referred to.  The Specification as open to inspection under Sect. 91 comprises the production of catalysts comprising mixed sulphides of an element of the left hand sub-group of Group VI of the Periodic Table and of a metal of the iron group.  This subject-matter in its widest aspect does not appear in the Specification as accepted.
Patent GB-947413-A (GB)
Title: Fuel conversion process
IPC: C10J1/213
Filed: 1961-05-30
Abstract: The cooled, scrubbed gas and steam prior to entry into the shift converter in solid fuel gasification processes under pressure is divided into at least two streams, at least one of which is super heated to 1200-1400 DEG  F. and enriched by the injection of petroleum naphtha which is thereby cracked, the other stream or streams being unheated; the streams are then blended to yield the correct temperature for the shift conversion.  The stream that is superheated may be the steam, scrubbed gas or a mixture thereof. The invention is stated to be applicable to Lurgi, Rummel and multiple slagging type generators. Specification 927,810 is referred to.
Patent GB-399228-A (GB)
Title: Improvements in or relating to trench crossing devices for vehicles
IPC: F41H7/02
Filed: 1932-04-05
Abstract: 399,228. Trench-crossing vehicles. STRAUSSLER, N., 45, Pall Mall, London. April 5, 1932, No. 19641/31. [Classes 79 (i) and 79 (iii).] To facilitate crossing trenches, a wheeled or endless-track vehicle is provided at one or each end with a pivoted leg or crutch adapted to fold under the vehicle ahd attached in such a position that it is normally clear of the ground, coming into operation to provide an extended support when the vehicle tilts or pitches longitudinally in passing over a trench. The front leg D, pivoted on a projecting bracket C, is normally held in a forwardly inclined position against a stop F by a spring E. A bracket G at the rear end carries a pivoted leg H normally held by a spring J against a stop K, rearward swinging being limited by a stop M.
Patent GB-981699-A (GB)
Title: Production of halogenated organic compounds
IPC: B01J21/04
Filed: 1962-05-22
Abstract: Halo-olefines are prepared by passing a hydrogen halide with an acetylenically unsaturated aliphatic hydrocarbon over a halogenated catalyst obtained by contacting a halogenatable inorganic oxide with a compound containing at least two halogen atoms on the same carbon atom.  Before the halogenation the inorganic oxide may be treated with an alkali or alkaline earth metal compound.  Specified inorganic oxides are alumina, boria, silica, titania, zirconia and ferric oxide; specified halogenating compounds are CCl4, CHCl3, CH2Cl2, CCl2F2, CCl3Br, COCl2, CH2F2, CHF3 and CF4.  The catalysts of Specifications 953,187 and 981,691 may be used.  An example prepares vinyl chloride and some CH3CHCl2 from C2H2 and HCl; other specified reactants are methylacetylene, HBr, HI and HF.  Reference has been directed by the Comptroller to Specification 921,796.
Patent GB-516688-A (GB)
Title: Improvements in or relating to the catalytic polymerization of acetylene
IPC: C07C2/38
Filed: 1938-07-04
Abstract: 516,688. Vinylacetylene. DU PONT DE NEMOURS & CO., E. I. July 4, 1938, No. 19806. Convention date, July 2, 1937. [Class 2 (iii)] Vinylacetylene is prepared by polymerizing acetylene in the presence of a liquid mass of catalyst comprising water saturated or nearly saturated with ammonium chloride and cuprous chloride in the molar ratio.of 1.7-2.2:1, and not containing more than about 0.6 per cent. of. hydrogen chloride by weight. The concentration of the salts may slightly exceed saturation so that some solid phase is present. Metallic copper equivalent to about 4 per cent. by weight of the catalyst may be present, or copper paddles may be used in the reactor.- With such a catalyst the ratio of vinylacetylene to byproducts, mainly divinylacetylene, does not vary with the temperature and higher reaction temperatures, e.g., 50-75‹C., may be used. Specification 451,442 is referred to. The Specification as open to inspection includes the description of a catalyst consisting of 36-38, per cent. cuprous chloride, 19-21 per cent. of ammonium chloride, and 41-45 per cent. water. It also does not specifically limit the hydrochloric acid concentration in the catalyst to 0.6 per cent. up to 5 per cent. or more being referred to. Preferably the hydrochloric acid is added to the catalyst and the pH suddenly drops from about 4 or 5 to less than 1. This subject-matter does not appear in the Specification as accepted.