baber/WOPTO huggingface dataset:
Patent GB-948207-A (GB)
Title: Process for the preparation of unsaturated keto-steroids
IPC: C07J5/00
Filed: 1961-11-16
Abstract: Keto steroids having a bromine atom in at least one of the a -positions relative to the keto group are dehydrobrominated by reaction with aragonite in the presence of an organic solvent and, optionally, an alkali metal halide.  The process may be used for the preparation of D 1-, D 4- or D 1,4-3-keto steroids from the corresponding 2- and/or 4-bromo compounds. If an 11a -sulphonyloxy group is present in the starting material a D 9(11)-double bond is also formed. Examples describe the preparation of D 1,4-3-keto-17b -hydroxy-androstadiene hexahydrobenzoate and acetate; D 1- 3, 11, 20-triketo-17a -, 21-dihydroxy -5a - pregnene 21-acetate; D 1,4,9(11)-3, 20-diketo-17a , 21-dihydrox -16a -methyl-pregnatriene 21-acetate; D 1,4-3, 17-diketo-androstadiene;prednisone 21-acetate; D 1-2-bromo-3, 11, 20-triketo-17a , 21-dihydroxy-5a -pregnene 21-acetate; 3a -acetoxy- 11, 20-diketo D 16-pregnene; and 3a -hydroxy-12-keto-D 9(11)-choleric acid methyl ester 3a -benzoate. Specification 832,244 is referred to.
Patent GB-1392750-A (GB)
Title: Magnetic domain information store
IPC: G11C19/08
Filed: 1972-09-05
Abstract: 1392750 Magnetic storage devices PLESSEY CO Ltd 22 Aug 1973 [5 Sept 1972] 41054/72 Heading H3B A magnetic structure capable of supporting cylindrical domains comprises a film of gadolinium iron oxide garnet mounted on a garnet substrate formed of either neodymium gallium oxide or sarmarium gallium oxide. A limited proportion of the gadolinium content may be replaced by ions of neodymium, praseodymium, cerium, lanthanum or europium. Alternatively scandium or indium may replace some of the iron content.
Patent GB-1039797-A (GB)
Title: Electro-deposition of a ternary alloy of nickel-iron and molybdenum
IPC: H01F10/14
Filed: 1963-10-18
Abstract: Magnetic films of Ni-Fe-Mo are deposited electrolytically from an aqueous acidic plating bath including Ni++, Fe++, and Mo O4- ions as the only platable ions at a pH of 3 to 5 with a cathode current density of 6 to 12 m A/cm2, the nickel ion content being 0.45 to 0.60N, and ratio ranges on a normality basis being 0.03 to 0.06 for Fe++/Ni++ and 0.016 to 0.036 for molybdate/nickel. The bath temperature is between 25 and 30 DEG C.and plating is effected for 50 to 150 seconds. The baths are typically sulphate baths and may contain also citric acid, saccharin, sodium lauryl sulphate and NaCl. Typically a cleaned and polished glass or plastic base is coated by vapour deposition with gold or chromium followed by gold to render the whole of it or selected areas conductive for electroplating. Alternatively a polished metal base may be used. A magnetic field may be applied during electroplating.  The ternary alloy forming the magnetic film consists on a weight percentage basis of 60 to 77% Ni, 13 to 24% Fe and 10 to 16% Mo, preferably 63 to 72% Ni, 18 to 23% Fe and 10 to 14% Mo.
Patent GB-1155062-A (GB)
Title: Apparatus for the production of fancy yarn
Inventor: HAWTIN SELWYN GEORGE
IPC: D02J1/08
Filed: 1965-09-29
Abstract: 1,155,062. Forming and finishing yarns. COURTAULDS Ltd. 28 Sept., 1966 [29 Sept., 1965], No. 41341/65. Heading D1F. In apparatus for entangling or interlacing the constituent continuous filaments of a loosely twisted yarn or bundle to produce fancy yarn, an outer member 1 is manually rotated by means of an arm 12 about a coaxial inner member 2 and against the restoring action of a spring 18 from a "closed" position in which a yarn &c. carrying bore or passage 3 is in communication with a hole 15 which receives a nipple for the connection of an air supply line (not shown) to an "open" position in which such communication is cut off and slots 13 and 14 are aligned to enable lateral introduction and positioning cf the yarn for subsequent travel through central holes in an eye 4 and notched guide plate 5 and passage 3. A disc accommodated in a counterbored portion 16 may be replaced by a disc having a different, selected size hole therein, so that the intensity of interlacing &c. may be varied.
Patent GB-1164102-A (GB)
Title: Method of Producing a Sliver of Roving-like Character from Glass Staple Fibre, and Apparatus for Carrying Out the Method
Inventor: SCHULLER WERNER HUGO WILHELM
IPC: D02G3/18
Filed: 1966-09-16
Abstract: 1,164,102. Producing sliver. W. H. W. SCHULLER. 16 Sept., 1966 [16 Sept., 1965], No. 41548/66. Headings DID and D1N. A sliver of roving-like character is produced by collecting and withdrawing said sliver from a stream of glass staple fibres the sliver being drawn off through a rapidly rotating tube 12 which produces a rapidly rotating air current which wraps projecting fibres about the sliver body and imparts some twist to the sliver. The staple fibres are fed into a stationary spinning tube 7 by an air current which causes the fibres in the tube to follow a rotary motion. The direction of rotation of the draw-off tube 12 may be the same or opposite to that of the direction of rotation of fibres in the spinning tube. To prevent ballooning of the sliver on leaving tube 12 it is passed through a tubular guide 15 to which a binding agent or grease may be supplied. In Fig. 2, not shown, the end of tube 12 protruding into shaft 7 is made frusto-conical and has grooves on its end to assist the fibres entering it. The end adjacent tube 12 may be mounted on tube 12 or shaft 7 and may be perforated. The "closeness" and strength of the roving can be varied by changing the inside diameter of tube 12 and by varying its penetration into shaft 7. The tube 12 may having different diameters e.g. decreasing in the outward direction or it may consist of several sections rotated separately e.g. at outwardly increasing speed. Tube 12 may be provided with perforations in the part extending into shaft 7 and there may be baffles in shaft 7 positioned adjacent the periphery of the draw-off tube.
Patent GB-1204049-A (GB)
Title: Forming tubulate glass articles
IPC: C03B11/06
Filed: 1968-09-04
Abstract: 1,204,049. Pressing hollow glassware. CORNING GLASS WORKS. 4 Sept., 1968 [13 Sept., 1967], No. 41973/68. Heading ClM. In a method of press-forming tubulate articles of glass, having a maximum viscosity of 800 poises during pressing, in an open-ended mould and reciprocable plunger arrangement, the volume of the die cavity is initially reduced from its desired final volume, molten glass is fed into the die cavity and the plunger inserted to exert pressure whereby the volume of the die cavity is enlarged to its final, and original, volume, the glass being progressively spread over the die cavity wall and pressed thereagainst. In the production of tubing, e.g. funnel-neck portions of cathode-ray tubes, a vertical die 10 is employed the cavity 12 of which has a taper of 0.05 degrees from an upper perimeter 12a (which may be a diameter 0.875 inch if the cavity is circular) to a lower perimeter 12b. The lower perimeter corresponds to the final volume of the die cavity. A plunger 15 also tapers similarly and is constructed to form an article having a wall thickness of 0.10 inch. A mandrel 18, which may be connected to a piston-cylinder arrangement has a diameter corresponding to 12b of the die and is movable between a first position intermediate perimeters 12a and 12b and a final position at 12b. The mandrel exerts a constant force F and when a charge 17 of molten glass is fed to the die the mandrel is moved downwardly against the pressure of plunger 15 and the glass.
Patent GB-932672-A (GB)
Title: Improvements in or relating to the copolymerisation of ethylene and propylene
IPC: C08F210/00
Filed: 1960-12-06
Abstract: A process for the production of copolymers of ethylene and propylene of controlled composition comprises pressuring a reactor containing an inert hydrocarbon reaction medium with ethylene and propylene, adding a catalyst consisting of a complex of an organo-aluminium compound and a metal halide selected from vanadium tetrachloride, vanadium trichloride, vanadium oxytrichloride, titanium trichloride and titanium tetrachloride whereby to initiate polymerization, maintaining the pressure during the polymerization by continuously adding ethylene and propylene in a mol. ratio equal to the mol. ratio desired in the product copolymer, the mol. ratio of ethylene to propylene in the initial pressuring step being determined by the formula Ep/Pp=(a) Ec/Pc where Ep/Pp is the desired mol. ratio of ethylene to propylene in the copolymer, Ec/Pc is the mol. ratio of ethylene to propylene in the initial pressuring step and (a) is 5 to 7 when the halide is vanadium trichloride, 10 to 12 when the halide is vanadium tetrachloride, 17 to 19 when the halide is vanadium oxytrichloride, 8 to 10 when the halide is titanium trichloride and 29 to 31 when the halide is titanium tetrachloride.  The materials are preferably added to and withdrawn from the reactor to maintain a constant volume of liquid therein with an average residence time of not more than two hours. The inert hydrocarbon medium may be hexane, heptane or isooctane. Specified organoaluminium compounds are triethyl aluminium, trihexyl aluminium, triisobutyl aluminium and diethyl aluminium chloride.  Examples describe the copolymerization of ethylene and propylene in the presence of isooctane and catalysts comprising (I and II) vanadium trichloride and trihexyl aluminium, (III) vanadium tetrachloride and trihexyl aluminium, (IV) vanadium oxytrichloride and trihexyl aluminium, (V) titanium tetrachloride, (VI) titanium trichloride and triethyl aluminium and (VII) vanadium tetrachloride and triethyl aluminium, to give copolymers containing ethylene and propylene in desired molar ratios.
Patent GB-842256-A (GB)
Title: Improvements in and relating to red-luminescent substances
IPC: C09K11/08
Filed: 1958-12-30
Abstract: 842,256. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 30, 1958 [Jan. 2, 1958], No. 42062/58. Class 39(1). A red luminescent (>6000 Š) substance is a magnesium fluoro-germanate activated with manganese dioxide in which the germanium is partly replaced by silica and one or both of titanium and stannous oxides. It has the formula a. MgOb. HgF2 c.GeO2 p.SiO2 q.TLO2 r.SnO2 z.MnO2 where 3# a # 3À9; a + b = 4; c + p + q + r = 1; 0À10 # p + q + r # 0À40; 0À01 # p # 0À36 0 # q, r # 0À36, 0À1 # p/q+ r # 9À0 and 0À005 # z # 0À020. The constituents are heated in air at a temperature of 1,000- 1200‹C for between 1 and 10 hours. The preferred composition differs from above in that 0À03 # p # 0À28; 0 # q, r # 0À28 0À4 # p/q + r # 2À5. Examples are given utilising TiO 2  and SnO 2  both together and separately and the luminescence of the compound is compared with that of the original germanate. The material may be coated on the outer bulb of a high pressure mercury vapour lamp or on a reflector. Specification 701,033 is referred to.
Patent GB-1205793-A (GB)
Title: Metal alloy powders
IPC: B23K35/02
Filed: 1967-09-15
Abstract: 1,205,793. Coated Ni-alloy powder. EUTECTIC WELDING ALLOYS CORP. Sept.15, 1967 [Sept.22, 1966], No.42123/67. Headings C7A and C7F. A powder useful in welding and flame-spraying consists of Cu-coated particles of an alloy consisting, by weight, of:- Coating may be effected by immersing the alloy powder in copper sulphate solution. Phosphorus may be deposited on the Cu coating e.g. by chemical or electrolytic treatment in a dry mixture with copper phosphate: oxidation of the Cu/P layers produces different colours. Further colouring may be achieved by alloying Au, Ag or Pt with the Cu coating e.g. by chemical displacement in solution.
Patent GB-1494515-A (GB)
Title: Method of making a reinforcing strip
IPC: B21F27/00
Filed: 1974-09-27
Abstract: 1494515 Reinforced concrete coated pipe BEKAERT SA NV 22 Aug 1975 [27 Sept 1974] 42142/74 Heading F2P [Also in Divisions B3 and D1] A pipe is coated by spraying concrete onto the rotating pipe while winding on to it a metal reinforcing strip consisting of a welded wire mesh having longitudinal and transverse wires, the former having been deformed to an extent which increases across the strip, thereby facilitating winding of the strip into the formation shown. In the embodiment described, the deformation is corrugation in planes perpendicular to that of the strip. The longitudinal wires may be more closely spaced towards what will become the inner edge of the strip, or the innermost wire may be of larger diameter than the others, or be of square section and the same dimensions.
Patent GB-1478179-A (GB)
Title: Magnetic erasing heads
IPC: G11B5/03
Filed: 1974-09-30
Abstract: 1478179 Erasing head SONY CORP 30 Sept 1974 [2 Oct 1973 (2)] 42279/74 Heading G5R A magnetic erasing head HE comprises a first pole P 1  cf. fixed, e.g. south, polarity extending across the whole width of track t of a magnetic recording medium and of a field strength to saturate the medium and a second pole P 2  of opposite polarity extending across half the width of the track and of a field strength greater than the coercive force of the medium. The arrangement reduces the amount of distortion introduced during the subsequent recording process. Numerous arrangements for erasing one or two tracks are described.
Patent GB-917628-A (GB)
Title: Improvements in and relating to commercial fittings or display stands
IPC: A47B96/02
Filed: 1961-11-27
Abstract: 917,628. Display stands; brackets. TISSOT, W. Nov. 27, 1961 [Sept. 7, 1961], No. 42366/61. Classes 52 (3) and 52 (5). A display stand comprises a framing 1 formed by at least two uprights 2 joined together by a framework (not shown) covered with panels 3 of painted sheet-iron, for example, with the uprights 2 carrying at least two removable and tiltable brackets 4 which support metal frames 5, each frame 5 being formed by two transverse angle-section pieces 10 welded to two longitudinal pieces 11. The wing 8 of each bracket 4 has two notches 9 which receive corresponding tongues 13 in the horizontal walls 12 of pieces 10 to effect horizontal fixation of the frames 5 to brackets 4, vertical fixation being achieved by clips 14. Notched portions 6 pass through apertures 7 in uprights 2 and enable the brackets 4 to be hooked on at the chosen inclination. Price-holders may be clipped on to the pieces 11 of frames 5.
Patent GB-1000017-A (GB)
Title: Heat exchanger core
IPC: F28D1/053
Filed: 1962-11-09
Abstract: 1,000,017. Heat exchangers. MODINE MANUFACTURING CO. Nov. 9, 1962 [Feb. 13, 1962], No. 42381/62. Heading F4S. In a heat exchanger core, which comprises a plurality of rows of tubes 14 each of elongated cross-section and a plurality of essentially flat spaced apart heat transfer fins 13, the core has an entrance side 16 and an exit 18 for the passage of cooling fluid, e.g. air, the tubes in the row initially contacted by said fluid are inclined at between 50-20 degrees to the direction 17 of the fluid at the entrance side 16, said tubes in the initially contacted row are inclined opposite to the tubes in the adjacent row and the spaced apart distance of the tubes in each row is between 0À250-0À675 inch measured between axes in a direction perpendicular to the direction 17 of the fluid. As shown, all the tubes are inclined and the rows are staggered. The tubes may be made of brass and have a major axis of 0À520 inch and a minor axis of 0À098 inch and the distance between the rows of tubes may be 0À527 inch. The heat exchange fins may be made of copper sheet 0À005 inch thick and 4À4 inch wide. In a modification, the fins have round shallow dimples 19 (Fig. 4, not shown).
Patent GB-947935-A (GB)
Title: Improvements relating to water insoluble dyestuffs of the phthalocyanine series and their use in inks
IPC: C09B47/26
Filed: 1960-12-09
Abstract: The invention comprises water-insoluble phthalocyanines of the formula <FORM:0947935/C3/1> where Pc is a metal-free or metal-containing phthalocyanine radical which is unsubstituted or contains one halogen substituted in one of the benzo radicals, X1 is the N-radical of a polyalkylene polyamine which contains at least three basic nitrogen atoms and at least one aliphatic group of 8 to 16 carbon atoms or araliphatic group which may contain an aliphatic substituent of 4 to 12 carbon atoms or cycloaliphatic group, X2 is the ammonium cation of such a polyalkylene polyamine and m and n are whole numbers, the sum of which is at least 2 and at most 4, while m is at least 1 and n can be O.  The pigments are made by reacting a compound or mixture of compounds of the formula <FORM:0947935/C3/2> where Pc, m and n are as above and Z is hydrogen, an alkali metal or ammonium ion, with m+n mols. of an appropriate polyamine or mixture of polyamines, or by reacting 1 mol. of a compound of the formula <FORM:0947935/C3/3> with m mols. of the polyamine to form the amide of the formula <FORM:0947935/C3/4> saponifying the sulphochloride groups remaining and reacting the product simultaneously or subsequently with n mols. of the polyamine. Examples are given.  The pigments are used to prepare ball-point pen inks and in an Example (9) one of the pigments is mixed with octylene glycol and benzyl alcohol to form such an ink.
Patent GB-1077929-A (GB)
Title: Drafting mechanism
IPC: D01H5/24
Filed: 1965-10-07
Abstract: 1,077,929. Drafting-apparatus. J. M. J. SAUVAGE. Oct. 7, 1965 [Oct. 9, 1964], No. 42524/65. Heading DID. In drafting apparatus comprising feed rollers, an apron unit comprising upper and lower aprons, a porcupine, and drafting rollers, the porcupine is situated between the apron unit and the drafting-rollers. The upper apron is displaceable along the drafting-field towards and away from the porcupine, while the position of the porcupine is adjustable heightwise in relation to the drafting-field to control the extent to which the needles penetrate the material. The porcupine which is replaceable is accordingly mounted on a lever 12, which can be rocked about a pivot 13 when an eccentric cam 14 is rotated about a fixed axis 15 by a handle 16. The handle ends in a pointer movable over a scale graduated according to the thickness of the material. A device to suck up loose fibres is provided, and the position of the feed and drafting rollers relatively to the apron unit, and the relative positions of the two feed rollers may De adjustable.
Patent GB-1077310-A (GB)
Title: Production of polylaurolactam
Inventor: KUNDE JOACHIM
IPC: C08G69/16
Filed: 1964-10-20
Abstract: Laurolactam is partially polymerized at 200-340 DEG  C. and autogenous pressure in the presence of 10-300 mole per cent of water, the water is removed and the polymerization continued at 270-340 DEG C.  Before polymerization the reactants may be freed of oxygen. 0.05-2 mole per cent of a chain terminator, e.g. acetic, propionic, butyric, benzoic or stearic acid or dodecylamine, may be added before or during polymerization.  Other additives may be fillers, fibres, pigments and dyes. Both polymerization stages may be conducted under an inert atmosphere. The pressure of the first may be up to 73 atmospheres; that of the second atmospherics sub- or super-atmospheric. The water may be removed by releasing the pressure and heating.  The products may be extruded as fibres directly from the bottom of the pressure vessel.  They may be injection moulded, extruded, or fluidized bed coated to produce rods, gears, pipe, film, sheeting bristles or fibres.
Patent GB-1160127-A (GB)
Title: An Improved Tractor Safety Frame
Inventor: WHITE DAVID ROY ANTHONY
IPC: B60R21/13
Filed: 1966-09-24
Abstract: 1,160,127. Tractor guard cabs. DAVID BROWN TRACTORS Ltd. 25 Sept., 1967 [24 Sept., 1966], No. 42745/66. Heading B7B. A tubular metal framework guard which may be enclosed to form a cab has U-shaped side members 10, 11, 12 interconnected by transverse members 20 and 21 to form one sub-frame, the members 14, 15 and 19 being welded to the side frames to form a second sub-frame below the other. Suitable braces and gusset plates are provided at the joints between the members.
Patent GB-1173473-A (GB)
Title: Photographic printing apparatus.
IPC: G03B27/62
Filed: 1967-09-26
Abstract: 1,173,473. Photographic printing apparatus. AGFA-GEVAERT A.G. Sept. 26, 1967 [Sept. 28, 1966], No. 43765/67. Heading G2A. A photographic printing apparatus for use with strip film originals 7 includes a base plate 1 defining a longitudinal path for the film, a pair of clamping elements for each longitudinal edge of the film for holding the film in a printing station, and elements, e.g. rollers 16, 17, arranged transversely of the path for locally deflecting the film from the path so that it takes up a sufficiently plane configuration for printing. The clamping elements consist of rails (8-11, Fig. 2, not shown), two carried by each of two apertured portions 5, 6. The upper portion 6 is attached by spacing members 14, 15 to two pivoted levers 4 which also carry the rollers 16, 17, the portion 6 being pivoted out of contact with the portion 5 to insert and advance the film. The portion 5 carries guides rollers 12, 13 each having a reduced diameter in the centre.
Patent GB-947110-A (GB)
Title: Improvements in or relating to buckles for safety belts
Inventor: ROGERS ARTHUR LAURENCE
IPC: A44B11/06
Filed: 1961-12-07
Abstract: 947,110. Clamps. ASH & ROGERS Ltd. Nov. 14, 1962 [Dec. 7, 1961], No. 43796/61. Heading E2B. A safety belt buckle comprises a cap member 17 and a base member 10 pivotally connected together, the base member having a recess 11 formed therein and the cap member having a cam portion 31 associated therewith, the cam portion being adapted to engage the free end 39 of the belt when the buckle is fastened and wedge it within the recess 11 in the base member. As shown, the cap member is biased away from the base member 17 by a spring 21 and is retained in the fastened position by a spring- loaded catch 22. The cam portion 31 is pivoted between lugs 29 on the cap member and is biased by a spring 34 in such a direction that cam freely engage with the recess 11. When the cap member is pivoted downwardly on to the base member. The fixed end of the belt is looped around a lug 12 and is held against relative movement thereto by a spring plate 15 secured to the underside of the base.