baber/WOPTO huggingface dataset:
Patent GB-713005-A (GB)
Title: Improvements in or relating to the control of electrodes in machines for vacuum arc melting, arc welding and the like
Inventor: HARDING ERIC WILLIAM
IPC: B23K9/12
Filed: 1951-07-21
Abstract: 713,005. Automatic control systems for arcs; electromagnetic clutches. MINISTER OF SUPPLY. July 21,1952 [July 21, 1951], No. 17335/51. Classes 35 and 38(4) In a machine for vacuum arc melting of metals or arc welding in which an electrode is driven through an electromagnetic clutch controlled by the arc, the clutch comprises a field system having pole faces which are divided into elementary pole parts which co-operate with corresponding elementary parts projecting from the face of a non-laminated armature of soft iron, the air gap then being a minimum when the clutch is energized. In Fig. 4 the D.C. arc voltage derived from a vacuum arc melting machine (not shown) is applied at 29, 30 and is arranged in opposition to an adjustable direct voltage obtained from a potentiometer R1 so that when the arc voltage rises above a predetermined value a gas-filled triode valve 31 is rendered non-conductive. Parallelconnected gas-filled triodes 32, 33 thereupon conduct, since the negative bias voltage across a resistance R3 is removed, and an electromagnetic clutch 17 is energized to couple a continuously running electric motor, Fig. 1 (not shown), to a roller feeding the electrode. Feedback through a transformer T2 reduces the differential of the system. Before switching on, potentiometer Rl is set to zero and the higher voltage between terminals 29, 30 before the arc is struck energizes a relay RL2 to change over contacts 40 and 41 from the positions shown so that charging of a condenser 39 temporarily removes the negative bias of a gas-filled triode 37, produced through a rectfier 42, so that a relay RL1 is energized to change over contact RL1a to RLb so that a motor 36 is energized for a time sufficient to adjust potentiometer R1 to the position it is to occupy during operation of the arc. The electromagnetic clutch comprises a driven four-pole field system 23, Fig. 2 and a soft iron armature 26. The pole faces and armature are grooved so that the air gap is a minimum in the position shown. Copper damping bars 28a are provided to produce a drag on the armature when the clutch slips.
Patent GB-559384-A (GB)
Title: Improvements in and relating to the manufacture of organic sulphur compounds
IPC: C07D277/38
Filed: 1942-06-29
Abstract: 559,384. Benzenesulphenyl derivatives of amino thiazoles. MANCHESTER OXIDE CO., Ltd., BANN, B., KRUG, P., WHEELER, D. E., TAYLOR, W., and GLADDING, G. June 29, 1942, No. 17363. Divided out of 551,681. [Class 2 (iii)] Benzenesulphenyl derivatives of amino thiazoles are prepared by acetylating the products obtained by the condensation of 2-amino-4- methylthiazole with the chloride or an ester of p-nitrobenzenesulphenic acid or with p-nitrobenzenesulphenamide or p-acetylaminobenzenesulphenyl chloride or by the condensation of 2-acetylamino-4-methylthiazole with the chloride or an ester of p-nitrobenzenesulphenic acid or with p-nitrobenzenesulphenamide followed by reduction of the nitro to an amino group. The condensation is effected as described in Specification 551,681 and the acetylation conducted either with or without heating, for example, with acetyl chloride in pyridine at or below 0‹ C. or with acetic anhydride at 80-90‹ C. If the acetylated product contains a nitro group, this may be reduced to an amino group and further acetylated. The products may be converted to benzenesulphonamido derivatives of thiazoles as in Specification 559,385. In examples : (1) the condensation product of p-nitrobenzenesulphenyl chloride and 2-amino- 4-methylthiazole made as in Example 5 of Specification 551,681 is warmed on a steam bath for 2 hours with acetic anhydride. Crystals which separate on cooling are recrystallized from alcohol after clarification with charcoal. The isomeric product, also made as in Example 5 of Specification 551,681, acetylated under the same conditions gives an identical product; (2) the same condensation product as in (1) is suspended in pyridine cooled to - 5‹ C. Acetyl chloride is added, the mixture left for 12 hours and the acetylated product precipitated with benzene ; (3) the product of (1) or (2) in sodium hydroxide solution is warmed with freshly precipitated ferrous hydroxide, filtered, and the filtrate neutralized with acetic acid. The product is the same as that of Example 11 of Specification 551,681; (4) the product of (3) is warmed with acetic anhydride, diluted with water and neutralized with ammonia. The product is identical with that of Example 10 of Specification 551,681 ; (5) the p-acetylaminobenzenesulphenyl derivative of 2- amino-4-methylthiazole made as in Example 9 of Specification 551,681 is treated in acetic acid or pyridine with acetic anhydride and heated at 80-90‹ C. for hour. The product is identical with that of (4).
Patent GB-1202677-A (GB)
Title: A 4,7,10-trioxatridecane-1,13-dioyl-bis-anilide, its salts, x-ray contrast compositions containing them, and processes for their production
IPC: C07C59/315
Filed: 1969-04-02
Abstract: 1,202,677. 4,7,10 - Trioxatridecane - 1,13 - dioyl - bis - (3 - carboxy - 2,4,6 - triiodo - anilide). BRACCO INDUSTRIA CHIMICA S.p.A. 2 April, 1969 [2 May, 1968], No.17365/69. Heading C2C. [Also in Division A5] Novel 4,7,10 - trioxatridecane - 1,13 - dioyl - bis - (3 - carboxy - 2,4,6 - triiodo - anilide) and the non-toxic, water-soluble metal, ammonium and amine salts thereof are prepared by reaction of 3 - amino - 2,4,6 - triiodo - benzoic acid with a reactive derivative of 4,7,10 - trioxatridecane - 1,13 - dicarboxylic acid, followed optionally by salification of the product. 4,7,10 - Trioxatridecane - 1,13 - dicarboxylic acid dichloride is prepared by reaction of 4,7,10- trioxatridecane - 1,13 - dicarboxylic acid with thionyl chloride.
Patent GB-837711-A (GB)
Title: Process for the polymerization of olefins
Inventor: ENGEL WILLEM FREDERICK
IPC: C08F2/00
Filed: 1957-05-31
Abstract: An olefin polymerization catalyst comprises Al2O3, SiO2 and one or more oxygen-containing compounds of Mo, the latter being in a valency state below 6.  Co is an optional ingredient and may be added e.g. as Co molybdate.  The proportion of Al2O3 in the Al2O3-SiO2 is (in the Provisional Specification 1-80) 5-65, preferably 10-50, especially 15-40, e.g. 12 or 25 wt. per cent.  Preferably the Mo compound is introduced as a hexavalent compound and reduced with a gas such as hydrogen, carbon monoxide or a hydrocarbon at above 300 DEG  C., particularly below 650 DEG  C., especially 400-550 DEG  C., e.g. 500 DEG  C.; prior to impregnation, the Al2O3-SiO2 may be activated at 500-750 DEG  C. using air, other oxygen containing gas or inert gas, preferably together with water vapour.  In the examples, ammonium molybdate solution is absorbed on the silica alumina and the product heated at 500 DEG  C. prior to reduction with H2.  The catalyst is preferably employed in a liquid hydrocarbon medium, but in the absence thereof may be fluidized or used in a fixed or moving bed. The catalyst is reactivated, after cleansing with solvents (e.g. hydrocarbons or chlorinated hydrocarbons) by "conditioning," i.e. reducing the catalyst (as above) but at lower temperatures (e.g. below 300 DEG  C., even below 100 DEG  C.), if necessary burning off combustible deposits prior to said "conditioning."  The catalyst may be in the form of cylinders, spheres, coarse grains or lumps, but preferably comprises microspheroidal grains of 100-200, e.g. 20-120 microns.  The starting material may be e.g. a treated clay or preferably a commercial cracking catalyst.ALSO:C2-C5 olefins, specifically ethylene and propylene, are polymerized in presence of a catalyst comprising at least one oxygen-containing Mo compound wherein the valency of Mo is below 6 (such as MoO3 reduced with H2), the oxides of Al (5-65 wt. per cent) and of Si (35-95 wt. per cent), and optionally minor quantities of other elements such as Co.  The reaction is carried out either in absence, or, preferably, in presence, of aliphatic, cycloaliphatic or aromatic solvents (iso-octane is used in examples).
Patent GB-685106-A (GB)
Title: A device for accurately setting calipers
IPC: G01B3/16
Filed: 1951-07-24
Abstract: 685,106. Tools for setting out work. BENKOE, I. July 24, 1951, No. 17467/51. Class 61 (ii). A device for accurately setting calipers comprises a base plate 1 carrying a ruler plate 2 provided with aligned indentations 3 or pegs accurately spaced at fixed intervals, and a disc 4 pivoted to the base plate and having an indentation 7 or peg lined up with the indentations 3. A vernier scale 8 on the edge of the disc cooperates with a scale on a ring secured to the base plate, the scales 8 and 9 being graduated to cover a movement of the indentation 7 at least equal to the fixed interval between the indentations 3. In use, one point 14 of the calipers is inserted in the indentation on the ruler corresponding to the nearest measurement to that desired on the low side and the other point inserted in the indentation 7, the caliper is then adjusted until the required reading is given on the scales 8, 9. The vernier scale may be replaced by a dial gauge.
Patent GB-1036796-A (GB)
Title: Improvements in or relating to flues
Inventor: RILEY JOSEPH OWEN
IPC: F23L11/02
Filed: 1963-05-03
Abstract: 1,036,796. Check draught regulator. HENRY WILSON & CO. Ltd. April 24, 1964 [May 3, 1963], No. 17481/63. Headings F4B and F4W. A check draught regulator for a boiler flue comprises hinged dampers initially held closed by bi-metallic elements 19 against air openings 16 in the walls of a stabilizer box 14, each opening being surrounded by a soft gasket 17. The vertical limb 20 of each bi-metallic element is attached to the top plate 22 of the boiler and is vertically adjustable. The heating of the bimetallic elements by the flue gases, causes them to release the doors which are opened by the chimney pull and thus allow entry of air into the flue.
Patent GB-120583-A (GB)
Title: Improvements in Boots, Shoes and the like.
Inventor: TUINDER HENDRIK JACOBUS
IPC: A43B13/14
Filed: 1918-10-29
Abstract: 120,583. Tuinder, H. J. Oct. 9, 1917, [Convention date]. Soles for a series of sizes of boots and shoes are made so that the straight line joining the flexing point C' and the heel centre B<1> forms an angle of 2-3 degrees outward with the "divisional line" between the second and third toe, that is the line A<1>, C<1>, G<1>. One point F on the periphery of the sole is formed by means of a line C<1>, F drawn from the flexing point C<1> and making an angle of about 70 degrees with the divisional line, the line C<1>. F being equal to one-half of the ball line D<1>, E<1>. The other points on the periphery are obtained by known methods. If the shoe is to be narrower than that shown in outline, the points n, o are shifted inwards, say to n<1>, o<1>, and the distances F f, E<1> e, D<1> d are marked off each equal to one-fifth of n n<1> or o o<1> and K<1> k and J<1> j are marked off equal to one-tenth of n n<1> or o o<1>.
Patent GB-793197-A (GB)
Title: A grid packing for towers and other apparatus for contacting gases and liquids
Inventor: WHYNES ALLAN LEONARD
IPC: B01D3/26
Filed: 1955-06-18
Abstract: 793,197. Contacting gases with liquids. FISONS, Ltd. Sept. 11, 1956 [June 18, 1955], No. 17661/55. Class 55 (2). A packing for a gas-liquid contact column comprises serrated strips 1, 2, 3, 4 and 5 arranged in a series of layers, the strips of alternate layers being at right angles to each other and the points of the serrations in contact. The strips may be made of carbon, wood, plastic or metallic materials.
Patent GB-1464157-A (GB)
Title: Ingot mould bottom plates
IPC: B22D7/06
Filed: 1974-04-23
Abstract: 1464157 Ingot mould base plate FOSECO INTERNATIONAL Ltd 20 March 1975 [23 April 1974] 17712/74 Heading B3F [Also in Division C3] A refractory insert formed from a bonded composition comprising particulate SiC, particulate elemental metal and a binding agent is inserted into a depression in an ingot mould base plate, in a place susceptible to erosion by the metal stream. The particulate SiC should be in the size range 0À05-3 mu., as should the particulate elemental metal, which may be Cu, Mo, W, V, Mb and/or Fe, with or without iron oxide, alumina or other additives, i.e. clays, carbon, ferro alloys, such as ferrosilicon or other oxides. The binding agent must be capable of forming a bond stable at high (1700‹ C.) temperatures and may be phosphate, particularly alumium chlorophosphate, calcium aluminate cements or alumium chlorohydrate, and the bond may be developed at room temperature or by firing. The relative proportions of the ingredients are preferably SiC 5-60% Elemental metal 5-50% Binder 5-30% Other materials 0-40% The insert may cover 5-75% (preferably 25-30%) of the base plate area, and may be set in a recess in the base plate or alternatively, formed from a mouldable comparison in situ to repair eroded portions of the ingot mould base. Examples of mixtures are given, i.e.: (a) SiC 45 Fe powder 10 Graphite 10 Aluma 30 Clay 5 (b) Ca alumate cement 30 SiC 35 Graphite 10 Fe powder 10 Water 15 Bonded with alumina orthophosphate (c) SiC 20 FeSi 24 Alumina 40 Fe powder 6 Ca alumate cement 10 mixed with water.
Patent GB-561386-A (GB)
Title: Improvements in electric air heaters and diffusers for ceiling use
IPC: F24H3/04
Filed: 1942-12-15
Abstract: 561,386. Unit air heaters. ALLEN & SONS (TIPTON), Ltd., W. G., and WEDDELL, A. Dec. 15, 1942, No. 17795. [Class 137] An electric air heater adapted for fixing to a ceiling comprises an electric motor 8 which drives a fan 10 by which air is drawn in through openings 5 adjacent the ceiling, and through perforations 5a in a cylindrical casing 2, the air from the perforations 5a being heated by heating elements 6 before mixing with the air from around the motor and being discharged through directional louvres 13. The motor is secured to an inverted conical member 7 forming an extension of the upper casing 1, and is cooled by the air drawn through inlets 5.
Patent GB-829664-A (GB)
Title: Improvements in or relating to the mounting of printed circuit panels
Inventor: TAYLOR JOHN HARRY
IPC: H01R12/71
Filed: 1957-06-05
Abstract: 829,664. Two-part couplings. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 5, 1958 [June 5, 1957], No. 17820/57. Class 38 (1). A printed circuit panel 3 is mounted on and connected to a support 1, also carrying a printed circuit by means of connectors 6 carried by the support and comprising inturned side portions 8 connected by intermediate portions 9, the portions 9 entering slots 12 in the panel 3 so that the portions 8 grip the panel adjacent the slots and engage conductors thereon. Stems 7 on the connectors are soldered to the conductors 2 on the support.
Patent GB-496147-A (GB)
Title: Improvements in beating-up mechanism for weaving looms
IPC: D03D49/24
Filed: 1937-06-26
Abstract: 496,147. Loom beating-up mechanism. PLATT BROS. & CO., Ltd., and HUGHES, J. June 26, 1937, No. 17842. [Class 142 (iii)] In a loom with a fixed lay, the beating-up comb d, moved in an orbital path e, is adjustably supported by swords 17 pivoted on a shaft 16 on double-armed levers 18 actuated by cams 24 on a driving shaft 4, whereby the comb is moved vertically. The swords 17 or others connected thereto are connected by links 27 to beat-up arms 26 actuated by cams 29 whereby the comb is moved backwards and forwards. In addition to a sword, links and cams at each side of the loom, there may be a further sword &c. The brackets 19 carrying the levers 18 may be supported by side members and intermediate supports. The comb is supported in a cross-bar 30 with adjusting brackets 31 at each end adjustably bolted to the swords and adjusted in height by bolts 33 and nuts 34, 35. In a modification, a spindle on the swords is connected to the links 27. In another, each cam 24, 29 comprises axiallyspaced discs having cam tracks engaged by a double-ended follower. Arms 8, 9 on brackets 7 on the cross-rail of the stationary lay 5 provide a track for the shuttle 10.
Patent GB-830745-A (GB)
Title: Improvements in or relating to loud-speaker assemblies
IPC: H04R1/34
Filed: 1956-06-08
Abstract: 830,745. Sound directing appliances. QUENNELL, A. M. June 7, 1957 [June 8, 1956], No. 17856/56. Class 13. In a sound directing arrangement, a sound reflecting surface 1, Fig. 1, is constituted by the partial revolution of a portion of a parabola 2 about an axis 3 intersecting the parabola axis 5 at the focus 4, the angle of revolution determining the dispersion zone of sound which is produced by a conical loud-speaker positioned on the axis of revolution with its apparent point source of sound located at the parabola focus. The axes 3 and 5 intersect at right-angles, and in one arrangement the angle of revolution may be 180 degrees, as shown in Fig. 2, so as to provide sound dispersion over a similar angle. Constructional details are disclosed, Fig. 3, in which the loud-speaker is mounted in the top wall of a totally enclosed or a vented box 10, the reflector 1 being suspended above the loudspeaker and providing horizontal sound dispersion through a predetermined zone.
Patent GB-672720-A (GB)
Title: Improvements in or relating to process of preparing cyclic fluoroalkylene oxide compounds and the cyclic fluoroalkylene oxide compounds resulting from said process
IPC: C07D303/48
Filed: 1949-07-07
Abstract: An electrochemical process of preparing cyclic fluorocarbon oxides comprises electrolysing a solution of liquid hydrogen fluoride containing a soluble hydrogen-containing compound, containing a carbon ring having an oxygen atom therein and having carbon bonded atoms replaceable by fluorine at a cell voltage insufficient to result in the formation of free fluorine and recovering a cyclic fluorocarbon oxide.  The simplest products have the formula <FORM:0672720/IV (b)/1> where n is an integer.  Homologues in which a saturated aliphatic fluorocarbon group, e.g. -CF3, -C2F5, -C3F7 replaces a fluorine atom may also be produced. Atmospheric pressure and 0 DEG  C. are preferred reaction conditions. Examples describe the preparation of (1) decafluoropentamethylene oxide from pentamethylene oxide dissolved in liquid hydrogen fluoride; by a similar method the preparation of (2) octafluoro-tetramethylene oxide from tetramethylene oxide; (3) 1 : 2-hexafluoropropylene oxide from epichlorhydrin. Tetrafluorethylene oxide and hexafluorotrimethylene oxide are also mentioned.  The products may be used as refrigerants and solvents.
Patent GB-562213-A (GB)
Title: Improvements in and relating to straight bar knitting machines
IPC: D04B11/00
Filed: 1942-12-19
Abstract: 562,213. Knitting-machines. COTTON, Ltd., W., WILDERS, G., and LYNAM, J. E. Dec. 19, 1942, No. 18066. [Class' 74 (ii)] A needle bar 10 for a straight-bar heeling machine comprises two inner parts A and two outer parts B pivoted to the parts A so that the outer parts B can be folded so that the needles in the parts B are parallel to those in the parts A or may be secured in an extended position with the needles in all the parts in substantially a straight line. The outer parts B may be raised in moving them to the folded position. In the described method of knitting the heel tabs, the terminal course of the high heel RH and the initial course of the foot bottom RS of the right-hand side of one blank are run on to the left-hand pair of parts of the needle bar, and the left hand corresponding courses of another blank are run on the right-hand parts of the bar while the outer parts B are in the folded position. The courses are separated by cutting or the removal of a draw thread and the outer parts are opened to the extended position, and heel tabs are knitted simultaneously upon the high heel parts on the needles of the parts A. Yarn carriers may be provided for feeding yarns to the needles of the inner parts A, the selvedge stops for determining their traverse at the inner edges being adjustable, and fashioning points may co-operate with the needles in the part A to fashion the selvedge edges of the heel tabs. A broad set of transfer points may be associated with each outer part B for transferring, one or more loops at a time, all the loops on the needles of the outer parts B to the needles of the corresponding inner parts so that seaming or linking of the inner edge of the heel tab to the initial course of the foot portion is avoided.
Patent GB-264735-A (GB)
Title: Improvements relating to distillation and like columns
IPC: C10C1/04
Filed: 1926-07-20
Abstract: 264,735. Still, C., and Kuhn, A. July 20, 1926. Scrubbers and washers.-The hoods d covering the vapour inlet passages c in a tray b of a column for distilling liquids or purifying gases are removable radially through openings r in the column casing covered by plates f. The hoods are held in position by flanges k, h which engage under lugs g, m in the overflow passage e and the plates f respectively and are slid into position over ramps n, n<1>. Guides s, s' direct the liquid towards the hoods.
Patent GB-584000-A (GB)
Title: An improved rack and frame for use in the grouping or bundling of cycle rims and like devices for transport purposes
IPC: B65D61/00
Filed: 1944-09-25
Abstract: 584,000. Stands. BRIGHTSIDE PLATING CO., Ltd., and FISCHER, A. P. Sept 25, 1944, No. 18229. [Class 52 (iii)] [Also in Group XVII] A rack or stand for use in the grouping or bundling of cycle rims or the like for transport purposes comprises three uprights a connected by fixed triangular cross frames b, c and a movable or detachable triangular cross frame d adapted to clamp the rims &c. e so that protruding parts of the rims can be readily strung together. The rims are placed upon the cross frame c and the detachable frame d held in clamping position by pins a<1>. When the rims have been tied into a bundle the frame d is removed and the bundle lifted out for transport. The frame d may be hinged to one of the uprights.
Patent GB-423171-A (GB)
Title: Improvements in concrete piling
IPC: E02D5/44
Filed: 1933-06-27
Abstract: 423,171. Piles. STENT, D. H., 10, Eldon Road, Hampstead, London. June 27, 1933, Nos. 18284 and 29723. [Class 68 (ii)] A hollow concrete pile is made of precast hollow lengths or sections of uniform internal diameter, connected by long spigot-andsocket joints each of which is grouted after the length above it has been driven, and is such as to enable the pile to resist bending stresses. Fig. 5 shows a joint connecting two sections a ; it comprises sockets b for receiving a double-ended spigot c with longitudinal grooves c<1> and circumferential grooves c<2> coincident with grooves b<1> in the sockets b, through and into which grout is forced when the upper length a has been put into place and driven. Fig. 8 shows a spigot with ducts e<2> leading to screwthreads e<1>; a disc h prevents the grout from filling the lower section a. The interior of the pile may be filled with sand, or the bottom may be left open to enable the pile to fill up from the bottom. The spigots may be formed in situ.