baber/WOPTO huggingface dataset:
Patent GB-1433812-A (GB)
Title: Method for cellulosic fibres
IPC: D06M13/02
Filed: 1973-06-07
Abstract: 1433812 Grafted cellulosic fibres COMMISSARIAT A L'ENERGIE ATOMIQUE 7 June 1973 [16 June 1972] 27266/73 Headings C3G and C3P [Also in Division C2] Cellulosic fibres are provided, e.g. by grafting, with a polyampholyte covalently fixed thereto and having an excess of carboxylic acid groups with respect to amine groups so as to form salt linkages which confer properties of crease resistance in the dry state and recovery from creasing in the wet state and so as to have free COOH groups which are capable of initiating the formation of a permanent pleat by virtue of condensation of said COOH groups with OH groups of the fibres or with NH 2  groups of the polyampholyte. The polyampholyte may be constituted by a copolymer of an unsaturated acid and an unsaturated base; by polyacrylonitrile which has been hydrolysed and then subjected to a Hofman degradation; by polyacrylamide which has been subjected to a Hofman degradation; by a polymer of an unsaturated amine acid, or by an acid polymer and an amine polymer successively grafted on to the fibres. Examples are given in which cotton fibres are (a) grafted with acrylic acid and allylamine; (b) grafted with allylammonium acrylate, saponified and neutralized; (c) grafted with acrylonitrile, optionally with preliminary cyanethylation of the fibres, followed by alkaline hydrolysis and degradation with bromine water; (d) grafted with alpha-aminoisobutyric acid acrylate and (e) grafted with acrylic acid and then 2-vinylpyridine.
Patent GB-677405-A (GB)
Title: Improvements in or relating to liquid break electric circuit interrupters
IPC: H01H33/92
Filed: 1950-11-08
Abstract: 677,405. Oil-blast switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Nov. 8, 1950. [Jan. 5, 1950] No. 27294/50. Class 38 (v). On separation of contacts 10, 67, an arc 60 is formed in an arcing passage 43 in a stack 8 of insulating plates, and moved to the right, Fig. 2, under the action of its natural magnetic field as distorted by iron plates 37, through narrow slots 18, 39 into enlarged portions 40 where it is subjected to transverse oil blasts due to the arc effect on the .oil in pockets 35, 45 in the stack, aided, when interrupting low currents, by oil blasts from inlet passages 21, the blast venting through apertures 32, 46, and 93. The blasts through the passages 21 are produced by pistons 79 which are forced downwards in cylinders 80 by springs 83 when the contacts open. The springs are compressed and the cylinders charged by oil through passages 21 and one-way valves 92a when piston extensions 88 are moved upwards by brackets attached to the movable contacts during the closing movement. When interrupting high currents, the arc-produced pressure overpowers springs 83 and prevents operation of the pistons until the arc is extinguished, whereupon the pistons produce blasts which flush the stack 8.
Patent GB-441224-A (GB)
Title: Improvements relating to packing rings for engines
IPC: F16J9/24
Filed: 1934-09-24
Abstract: 441,224. Piston-rangs. BONFA, A., 608, Umbilo Road, Durban, South Africa. Sept. 24, 1934, No. 27349. [Class 122 (i)] A packing-ring for a sleeve valve or piston is provided witl a projection 42 to engage a cavity in the ring groove land thereby preventing rotation of the ring. Specification 418,616, [Group XXVII], is referred to. Reference has been directed by the Comptroller to Specifications 250,296 and 275,468, [both in Class 122 (i)].
Patent GB-338261-A (GB)
Title: Improvements in and relating to incubators
IPC: A01K41/00
Filed: 1929-09-09
Abstract: 338,261. Petersime, I. M. Aug. 1, 1929, [Convention date]. Hatching - appliances. - Egg trays 8 are carried on shelf shoulders 7 on the end plates 6 of a rotatable drum mounted in a cabinet at the bottom of which stacks of trays 14 are arranged to contain the eggs in which chickens are actually hatching. Stirrer blades 11 mounted on arms 12 passing along the ends of the drum move around the periphery of the drum. Moistening means 15 and air inlet and outlet openings 16, 17 are provided. The air outlet openings are controlled by slides 24. The current to the heating elements 13 is controlled by a thermostat 20. Each egg tray 1 has side walls 28 and a wire bottom 29 and spaced rods 30 extend across the trays to arrange and retain the eggs in position.
Patent GB-1522590-A (GB)
Title: Surface mounting electrical device
IPC: H02G3/10
Filed: 1977-06-30
Abstract: 1522590 Switch covers BROWN BOVERI & CIE AG 30 June 1977 [1 July 1976] 27373/77 Heading H1N A plastics cover 3, Fig. 3, for a surface mounted electric switch is attached to the body (2), Fig. 1 (not shown) of the switch by non-resilient projections 9, 10 on its rear face which engage within recesses (5), (6) in resilient material of at least a part of the body 2. The projections 9 may have ribs 9a, 10a to snap into the recesses (5), (6).
Patent GB-241731-A (GB)
Title: Improvements in and relating to means for forming concrete blocks
IPC: B28B7/18
Filed: 1924-11-17
Abstract: 241,731. Lane, E. M. Nov. 17, 1924. Moulds for making blocks with imitation mortar-joints from a wet concrete mixture. The mould consists of a box with hinged side and end walls as shown in plan in Fig. 1. Strips 12, 14 arranged like the joints of brickwork are laid at the bottom or a the top of the mould in notches in the walls, and these strips project so that they may be grasped by the hand for withdrawal after the mould has been filled. The strips are withdrawn longitudinally, or when at the top of the mould they may be lifted out. To hasten setting, the mould is provided with absorbent horizontal and vertical cores A, B which extend entirely through the block, the horizontal cores being spaced from the bottom of the mould. The vertical cores B are arranged so that the blocks will interlock to represent correctly the appearance of courses of brickwork. The cores B are formed by sheetmetal containers 16, 17 with perforated walls, filled with sand or other absorbent material, and resting on the bottom of the mould. The containers 16, 17 are recessed at the bottom to accommodate the strips 12. The horizontal cores A are. formed in boxes, one of which is ishawn separately in Fig. 5, and in position in the mould in Fig. 1. The box consists of a three-sided former 21, which is inverted for filling, a cover-plate 22, 23, and an end-cover 26. The box is passed through an opening in one side of the mould and is supported at the opposite side by a rod 24 on the plate 22. In use, a very wet fine sand-concrete mixture, which may be coloured, is first poured into the mould to form the face of the block, a layer of comparatively dry concrete mixture is poured over this, the horizontal core-box is inserted, and the mould filled with the wet mixture. The core box may be withdrawn immediately afterwards, the cover 26 being removed and replaced by a stripper. After a few minutes, the vertical walls of the mould may be removed from the block. The horizontal cores may be cylindrical, and the core box may be in one piece.
Patent GB-892525-A (GB)
Title: Improvements relating to the mounting of jet-propulsion units
IPC: F02C7/20
Filed: 1960-08-08
Abstract: 892,525. Helicopter rotors. DAIMLERBENZ A.G. Aug. 8, 1960 [Aug. 28, 1959], No. 27421/60. Class 4. [Also in Group XXVI] A mounting for a freely projecting jet propulsion unit has the sector of the housing of the unit adjacent to the part on which the unit is supported formed double walled and open for the flow of cooling air the housing being otherwise of single walled construction. The foot F of a ram jet S is releasably connected to the end 11 of a helicopter rotor blade. The sector of the housing of the unit adjacent the end 11 is constructed as a supporting body T and consists of an outer wall 12 and inner wall 13 connected by webs 14. The foot F comprises two sheetmetal connection pieces 15, 16 connected by a transverse web 17. The ports 15<SP>1</SP>, 16<SP>1</SP> of the pieces 15, 16 are fixed to and form prolongations of the outer wall 12. Stays 19 support the flame holder 20. The body T is open at the front and rear so that cooling air can flow through the passages 21. An insert 22 carries an ignition plug 23.
Patent GB-1155818-A (GB)
Title: Pipeline Scraper Signalling System
Inventor: SHELLENE KENT RICHARD
IPC: B08B9/055
Filed: 1968-06-10
Abstract: 1,155,818. Electro-physical measurement - locating concealed objects. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 10, 1968 [June 12, 1967], No.27449/68. Heading G1N. An arrangement for signalling when a pipe-line scraper, propelled by the liquid flow, has reached a predetermined point comprises an electrode 13 insulatingly mounted in the pipe, the indicator circuit being completed either through the pipe-line Fig. 1 or another electrode mounted e.g. diametrically opposite Fig. 2 (not shown). In the case of a CONDUCTING LIQUID the circuit is normally completed through the liquid and the arrival of an insulating (e.g. rubber) scraper interrupts the circuit. Conversely for a NON-CONDUCTING LIQUID a conducting scraper is used to complete the circuit. In an ALTERNATIVE arrangement for use with a CONDUCTIVE LIQUID an insulating pipe section may be used Fig. 3 (not shown).
Patent GB-950520-A (GB)
Title: Removal of crude maleic acid deposits
IPC: C07C51/31
Filed: 1961-07-28
Abstract: A process for removing a solid deposit of crude maleic acid and tars, formed during the production of maleic anhydride by the partial catalytic oxidation of benzene, from apparatus in which the deposit has formed comprises contacting the deposit with at least sufficient molten maleic anhydride to dissolve the deposit and draining off the resulting solution.  The removal of the deposit may be carried out simultaneously with the flow of the hot gaseous reaction mixture through the apparatus or may be carried out on apparatus which has been removed from service. The gaseous mixture resulting from the catalytic oxidation may be partially condensed to give liquid maleic anhydride and slow formation of the solid deposit, the uncondensed vapours being passed to a water scrubber where any maleic anhydride present is hydrolysed to maleic acid which is subsequently dehydrated to maleic anhydride.  Examples are given.  Specification 853,849 is referred to.
Patent GB-602056-A (GB)
Title: Improvements in and relating to sulfuric anodizing
IPC: C25D11/04
Filed: 1945-10-19
Abstract: 602,056. Electrolytic surface treatment of aluminium articles. JACK & HEINTZ, Inc. Oct. 19, 1945, No. 27505. Convention date, Nov. 9, 1944. [Class 41] A method of forming a protective film on aluminium articles comprises immersing the articles in a circulating solution consisting of 13.4 ozs. sulphuric acid and 13.4 ozs. manganous sulphate per U.S.A. gallon of water at a temperature of from 85‹ to 95‹ F., connecting the articles in an alternating current circuit on the solution, subsequently rinsing the articles in an ammonia rinse followed by a cold water rinse, and sealing the articles in a sodium bichromate solution. The current density is from 25 to 50 amperes per square foot. Preferably the articles are suspended between electrodes in a three-wire alternating current circuit, the voltage between electrodes being from 22 to 30 volts. The articles remain in the electrolyte from 12 to 20 minutes, and in the sealing tank from 15 to 20 minutes, the temperature in the sealing tank being from 208‹ to 212‹ F.
Patent GB-832840-A (GB)
Title: Improvements in inset open fires
Inventor: STUART GORDON WILSON
IPC: F24B1/191
Filed: 1957-09-02
Abstract: 832,840. Fire grates. FEDERATED FOUNDRIES Ltd. Aug. 25, 1958 [Sept. 2, 1957], No. 27521/57. Class 126 In an inset open firegrate, the ashpit door 20 has an upward extension 30 having a plurality of apertures 25 which, when the door is open, as shown, allow combustion air to pass downwardly and then through an opening 13 in the front 11 of the grate to the ashpit 14, whilst concealing the opening from view. When the door 20 is closed, a machined rib 24 on its inner surface engages a similar rib 19 along the upper edge of the opening 13. A hood 26 extending between the side cheeks of the grate and having side members 27 projecting beyond the sides of the door 20 further conceals the opening. A gas burner 17c is supported by a plate 17b for igniting fuel in the grate.
Patent GB-204537-A (GB)
Title: Improvements in and relating to tents, and the like
IPC: E04H15/26
Filed: 1922-10-11
Abstract: 204,537. Yano, E. Oct. 11, 1922. Tents of the type in which the roof is formed of tension and compression members radiating from a common central axis and in which a centre supporting pole is dispensed with, have the central axis 2 formed as a screw and sleeve nut to which the tension and compression members are joined respectively, so that the stresses in the members may be varied. The compression members 12 are formed of extensible sections while the tension members are formed of rope or wire. Their outer ends are secured to members 16 which are supported by the side posts 24. These members 16 are adapted to be lifted by pulleys on external uprights in order to place the roof in position.
Patent GB-218543-A (GB)
Title: An improved ice cream making machine
IPC: A23G9/18
Filed: 1923-11-02
Abstract: 218,543. Pimbley, J. P., and Perkins, L. P. Nov. 2, 1923. Addition to 207,631. Ice-cream and like freezers. - The fixed internally-cooled drum c of the freezer described in the parent Specification is adapted to receive a charge of ice and salt or other freezing mixture instead of being fitted with the evaporator of an absorption refrigerating machine,. For this purpose its outer end is closed and provided with a charging door c<2> secured by a fly bolt, and with a drainage pipe n. The door o of the insulated casing is notched to fit over the pipe n. The linerb, drum and other parts, after removal of the door o, may be withdrawn from the insulated casing by tilting the parts to allow the pipe n to. clear the wall of the casing.
Patent GB-1384471-A (GB)
Title: Process for the manufacture of fatty acid ethanolamides
IPC: C11D1/20
Filed: 1972-06-13
Abstract: 1384471 Fatty acid ethanolamides CHEMISCHE WERKE HULS AG 13 June 1972 [14 June 1971] 27544/72 Heading C2C Fatty acid ethanolamides containing 12 to 22 carbon atoms are prepared by reaction of a fatty acid containing 10 to 20 carbon atoms or an ester thereof, with ethanolamine at elevated temperature and in the presence of an alkaline catalyst in two stages. In the first stage the fatty acid or ester is reacted with ethanolamine in the molar ratio of from 2 : 1 to 2 : 1À2 at a temperature of from 80‹ to 150‹ C. until the formation of the di-fatty acid ester-amide is substantially complete and in the second stage a further 0-5 mol. of ethanolamine is added per mol. of fatty acid or ester present initially and the reaction is allowed to go to completion at a temperature of from 100‹ to 160‹ C.
Patent GB-1152873-A (GB)
Title: Ultrasonic Welding Device and method
IPC: B29C65/08
Filed: 1966-06-21
Abstract: 1,152,873. Seaming non-metallic sheet material. THOMAS & BETTS CO. 21 June, 1966 [28 June, 1965], No. 27708/66. Heading B5K. A covering 98, Fig. 4, is applied to an electrical terminal 102 by forming an ultrasonically weldable material about at least a part of the terminal and welding the material in position by ultrasonic vibrations. The invention is applicable to sealing a thermoplastic vinylic electrical insulation 98 about a conductor 100 having a terminal 102. Plastics films having metallic depositions may also be welded. The insulation material in the form of a longitudinally folded strip 154, Fig. 13, is intermittently fed by rollers 84, 86, Figs. 1 and 13, of complementary V-section, Fig. 15 (not shown), to a, spreader mechanism 120, Figs. 13 and 17, by a raised segment 156 on the roll 84, driven in synchronism with a cam 32, forcing the strip into contact with the idler roll 86. The lower layer of the strip 154 is threaded between the lower surface of a V-shaped channel 199, Fig. 17, in a block 170 and a rail 202. As the strip 154 is fed, a conductor 100 is conveyed to the welding station and a ram 30 of the welding device is raised by a follower 34 thereon engaging a groove 36. in the cam 32. As the ram 30 moves upwardly a bar 180 moves upwardly and pivots a lever 178 anti-clockwise. Fig. 17, to move a spreader 122 towards the channel 199 to spread open the strip 154 to allow the conductor 100 to be inserted therein, Fig. 13. The cam 32 then moves the ram 30 downwardly and a wire positioner 72, Fig. 1, accurately positions the conductor 100 to align it with die faces of an anvil tip 106 and a transducer tip 96. The tip 106 forces the insulation about the terminal 102 and the conductor 100 and this assembly is forced under pressure into the die base of the tip 96. During the next half-revolution of the cam 32, the ram 30 is maintained in its lowermost position and ultrasonic welding of the insulation about the conductor 100 is carried out. The ultrasonic vibration of the tip 96 is produced by a generator 94 which may comprise a frequency generator, a control amplifier having frequency, gain and phase control, a coupling transformer, and a transducer, the. latter preferably mounted in a water-cooled oil jacket. A raised segment 130 on the cam 32 acts on a roller 58 to cause quick downward movement of spring-loaded knives 68, 106 to, respectively, out out a notchshaped piece of insulation, and sever the welded insulation from the strip 154. The knives 68, 106 are withdrawn and the ram 30. ascends. Alternatively, the raised segment on the cam 32 could be positioned so as to cause the knives 68, 106 to be actuated prior to welding.
Patent GB-1110852-A (GB)
Title: Porous catalyst body
IPC: B01J35/10
Filed: 1965-06-30
Abstract: A porous sintered catalyst body such as a gas diffusion electrode comprises a fine pored electrically conducting carrier e.g. of charcoal or carbon and/or Ni powder, which also contains coarse open pores, the walls of the coarse pores alone containing a catalytic material with a higher catalytic activity than the carrier e.g. RANEY (Trade Mark) nickel, Pt group metal or a spinel. The fine-pores are 0.1-5 microns diameter and the coarse pores have a diameter 10 to 1000 times greater.  The sintered body is made from a powder mixture of the carrier material and a filler powder e.g.  NaCl, KCl or (NH4)2 CO3, which is coated with the catalytic material.  The powder mixture is then pressed and sintered or hot pressed and in the case of the RANEY alloy catalyst and the NaCl and KCl filler the sintered body is then leached with caustic potash.  The catalytic coating may be applied by electroless deposition, evaporation or precipitation.ALSO:A porous sintered catalyst body such as a gas diffusion electrode comprises a fine pored electrically conducting carrier e.g. of charcoal or carbon and/or Ni powder, which also contains coarse open pores, the walls of the coarse pores alone containing a catalytic material e.g. RANEY (Trade Mark) nickel, Pt group metal or a spinel.  The fine-pores are 0.1-5 microns diameter and the coarse pores have a diameter 10 to 1000 times greater.  The sintered body is made from a powder mixture of the carrier material and a filler powder e.g. NaCl, KCl or (NH4)2 CO3, which is coated with the catalytic material.  The powder mixture is then pressed and sintered or hot pressed and in the case of the RANEY alloy catalyst and the NaCl and KCl filler the sintered body is then leached with caustic potash.
Patent GB-153775-A (GB)
Title: Improvements in carriers for electric storage batteries
IPC: H01M50/271
Filed: 1919-11-11
Abstract: 153,775. Blake, J. C., and McNaught, W. Nov. 11, 1919. Lids and covers.-An aluminium case 1 for an electric battery is provided with a lid 4 which is fitted with a washer 9 and is secured in position by a nut 7 engaging a screw-threaded bolt 5 fastened to a bridge-piece 6 which is in pin-and-slot connexion with the walls of the case.
Patent GB-712433-A (GB)
Title: Improvements in the manufacture of nacreous polymethacrylic ester resins
IPC: C08F20/12
Filed: 1951-11-28
Abstract: A process for the production of nacreous polymethacrylic resins comprises producing a methacrylic ester monomer, such as methyl methacrylate, by the distillation of polymethacrylic ester resins in admixture with an inert, and, at the operating temperature, non-volatile substance, such as silicon dioxide, the distillation temperature being allowed to rise slowly to 400 DEG  C. and then maintained at this figure, a non-volatile neutralizing agent, such as sodium carbonate, being added to the mixture when the temperature reaches 180 DEG  C., the methacrylic ester monomer thus obtained being polymerized to the solid state in bulk, in solution, or as an aqueous emulsion, in the presence of up to 30 per cent. of pearl essence or tincture of pearls, from 0.01 to 0.0001 per cent. of a catalyst, such as acetyl peroxide, and optionally fillers, dyestuffs and plasticizers.  Polymerization may be carried out at a temperature of 40 to 80 DEG  C., and may be assisted by the action of ultra-violet light.  The pearl essence is preferably used in the form of a suspension in a vehicle, such as amyl acetate, which does not attack the pearl essence or form bubbles during polymerization. Specification 460,009 is referred to.ALSO:Methacrylic esters, such as methyl methacrylate, are produced by the distillation of polymethacrylic ester resins in admixture with an inert, and, at the operating temperature, non-volatile substance, such as silicon dioxide, the distillation temperature being allowed to rise slowly to 400 DEG  C. and then maintained at this temperature, a non-volatile neutralizing agent, such as sodium carbonate, being added to the mixture when the temperature reaches 180 DEG  C.
Patent GB-1272914-A (GB)
Title: Improvements in or relating to the manufacture of magnetic layers for use as magnetic stores
IPC: C25D7/06
Filed: 1970-06-10
Abstract: 1,272,914. Devices. SIEMENS A.G. 10 June, 1970 [11 June, 1969], No. 28017/70. Heading H3B. [Also in Divisions C7 and H1] A uniaxially anisotropic cylindrical magnetic layer for use as a magnetic store is made by coating a carrier wire successively with (1) a first fine-grain smoothing layer of non-magnetic metal; (2) a second layer of non-magnetic metal and (3) a layer of magnetic material. The second non-magnetic layer is applied electrochemically e.g. by electroplating, and has a rough surface, i.e. a surface in which the average distance between adjacent peaks or troughs is about twice the thickness of a domain wall in the magnetization of the magnetic layer. The "roughness depth" of this layer may be at most 15% of the thickness of the magnetic layer, and the "wavelength" of the surface roughness may be 1000- 2000 . The carrier wire may be Cu containing about 2% Be, the first non-magnetic layer may be Cu, the second Cu or Au and the magnetic layer may be electrolytically deposited permalloy (e.g. Ni-Fe). The required surface characteristics of the second non-magnetic layer may be obtained by electro-depositing (a) a continuous and coarsely crystalline coating or (b) a discontinuous "island" coating. The rough surface of the second non-magnetic metal induces enhanced coercive held strength in the magnetic layer.