baber/WOPTO huggingface dataset:
Patent GB-1399708-A (GB)
Title: Anticorrosive coating system
IPC: C09D183/00
Filed: 1972-10-26
Abstract: 1399708 Organic silicate coating compositions EXXON RESEARCH & ENG CO 26 Oct 1972 [12 Nov 1971 31 July 1972] 49386/72 Heading C4A [Also in Division C3] A coating composition which cures on exposure to humidity comprises at least one water free alkyl, aryl or alkoxy-alkyl silicate and a ketimine as a latent curing catalyst. Suitable silicates include tetraethyl silicate, condensed ethyl silicate, polyethyl silicate containing 40% wt. silica, other ethyl silicates, ethylene glycol monoethyl ether silicate, tetra-2-methoxyethyl silicate, tetra - n - (iso) - butylsilicate, tetraisopropyl silicate, phenyl ortho silicate, phenyl polysilicates and condensed phenyl silicates. Optional ingredients include an organic solvent such as mineral spirits, xylene, paraffinic hydrocarbons, glycol ethers, C 2-4  alkanols; pigments such as TiO 2 , Sb 2 O 3 , iron oxides, e.g. Fe 2 O 3 , carbon black, Al powder or flakes, Zn dust or flakes and mixtures thereof; extender pigments or fillers such as montmorillonite, other clays, tales and silicas; small amounts of other fillers such as asbestos. In a typical example compositions are prepared from the following ingredients in pbw: non-hydrolysed tetraethylorthosilicate: 37; non-hydrolysed polyethylsilicate: 77; a 1 : 1 : 1 solvent mixture of mineral spirits/ ethanol/ethylene glycol monoethyl ether: 25; montmorillonite: 5À0; zinc dust: 450; and 28À5-55 pbw of one of the following ketimines: the reaction product of (1) diethylene triamine and methyl isobutyl ketone (2) ethylene diamine and methyl isobutyl ketone and (3) diethylene triamine, a monoglycidyl ether and methyl isobutyl ketone. Other examples are described. The compositions are applied as coatings and cure on exposure to atmospheric moisture. Uses.-Coating steel and other ferrous metal surfaces; stabilize earth works such as dams and levees; stabilize land subject to permafrost thawing.
Patent GB-1419535-A (GB)
Title: Fluidized bed reactor
IPC: C02F11/13
Filed: 1972-11-22
Abstract: 1419535 Incinerators DORR-OLIVER Inc 22 Nov 1972 [22 Nov 1971] 49644/72 Heading F4B A fluidized bed furnace for burning refuse comprises an upright cylindrical housing with a horizontal constriction plate 51, Fig. 2, supporting the fluidized bed, controllable means for supplying combustion air under pressure to the wind box chamber 43 to fluidize the bed and a number of air jets 56 each mounted at an angle to its respective radius so as to maintain a combustion zone in a state of high turbulence. The air jets are arranged in a horizontal plane and directed so as to be tangential to a circle having about half the diameter of the bed and concentric with it. The jets are supplied via a circular feeder 57 from a blower 53, the pressure being controlled by valve 58. Refuse may be fed to the furnace by a pneumatic feeder 55, Fig. 4, mounted in the wall or roof of the housing. The refuse is fed through the centre tube and compressed air is applied to chamber C surrounding it. At the end of the central tube are a series of fixed turbine blades 63 which give a spin to the air passing from chamber C into the slightly flared delivery pipe L-3. The refuse entrained in the air is likewise rotated and thrown in a conical jet on to area A of the furnace bed. Supplementary fuel may be injected into the bed by injectors 62.
Patent GB-1373241-A (GB)
Title: Method and apparatus for detecting defects or irregularities in  glass sheet
IPC: G01N21/89
Filed: 1971-10-29
Abstract: 1373241 Detecting defects in sheet glass CENTRAL GLASS CO Ltd 29 Oct 1971 [31 Oct 1970] 50505/71 Heading G1A In a device for detecting defects in sheet glass a rotary polyhedral mirror 14 causes a laser beam 16 to scan the moving glass sheet transversely of its direction of motion and the transmitted light (or reflected light see Fig.7) is incident on a photo-multiplier 22 after passing via a window W2 and a fibre optic light converger 21. The photo-multipliers output is amplified and passed to a peak value discriminator circuit 32 connected to a reference voltage source so that when the photo-multipliers output decreases below a predetermined voltage level, a pulse appears at the output of the discriminator. The pulses are amplified and passed to a control unit which may activate an alarm. The location of the defects may be determined by determining the relation of the time tl of the defects appearance relative to the scan period T of the laser beam. In another embodiment, Fig.7, light from a laser source 11 is split up into two scanning beams by an oscillating mirror 17, a beam-splitter 19 and mirrors 18, 18', 18", and the beams are directed as shown on to opposite surfaces of the glass sheet 5. The reflected light from each surface is received by a corresponding set of a lens 21 a light filter 24 and a photo-multiplier 22. The photo-multiplier output may then be processed as in the previous embodiment.
Patent GB-1242775-A (GB)
Title: Process for the production of sheet materials and of porous electrodes
IPC: H01M4/88
Filed: 1969-10-14
Abstract: 1,242,775. Porous electrodes and sheets. SIEMENS A.G. 14 Oct., 1969 [2 Nov., 1968], No. 50507/69. Headings C3C and C3P. [Also in Division H1] Catalytically active sheets are produced by mixing a pulverous catalytic material, a poreforming agent and a liquid medium capable of dissolving or suspending the pore-forming agent; mixing this mixture with a dispersion of a thermoplast; removing from the resulting mixture all or substantially all of the liquid media; and pressing the dried body to produce the sheet. The catalytic material can be mixed with a solution or suspension of the poreforming agent in the liquid medium, or the liquid medium can be added to a mixture of the catalyst and the pore-forming agent. The catalyst can be porous, e.g. a Raney metal such as Fe, Co, Ni, Cu or Ag; the liquid medium. H 2 O; the pore-forming agent KCl, K 2 CO 3 , Na 2 CO 3  or (NH 4 ) 2 CO 3  ; and the thermoplast polyethylene, polypropylene, or PTFE, preferably dispersed in H 2 O. The liquid media are preferably removed by evaporation and the pore-forming agent is removed, in use, by solution in, e.g. the electrolyte.
Patent GB-1205015-A (GB)
Title: Improvements relating to washing and/or spin drying machines
Inventor: BERRY BRIAN DAVID
IPC: D06F37/26
Filed: 1966-11-10
Abstract: 1,205,015. Spin dryers. HOOVER Ltd. 9 Nov., 1967 [10 Nov., 1966], No. 50535/66. Heading F4G. [Also in Division D1] A washing machine or spin-dryer comprises an assembly resiliently mounted in a casing on which at least one ballast weight 40 is flexibly or resiliently mounted to offset vibrations from the assembly. The machine has a base 10 mounted on casters 11 and supporting a rectangular sheet metal casing 12 with flanges 14 at the tops of the side walls 15. The upper ends of four springs 21 are connected to rods 23 which pass through apertures 24 in struts 17 spot welded to flanges 14. Round each aperture 24 is formed a hemispherical portion to receive a bearing 28 through which each rod 23 passes and is held by a washer 26 and two nuts. Container 20 is suspended on springs 21 and is connected to base 10 by hydraulic dampers 32. A rotary basket mounted in container 20 is driven by a belt drive from motor 37. Each weight 40 comprises a polyethylene container filled with concrete, whose outer wall has ridges 42, 43 which form a location for brackets 45 which suspend it from strut 17 so that a projection 46 is biased against the casing to stress its side walls 15.
Patent GB-1014115-A (GB)
Title: High-frequency welding apparatus
IPC: B29C65/00
Filed: 1963-12-30
Abstract: 1,014,115. Seaming non - metallic sheet material. O. FRIDLUND. Dec. 30, 1963 [Jan. 14, 1963], No. 51234/63. Heading B5K. A plastic bag formed from a folded sheet of material by welding the side and bottom edges in one operation with an L-shaped electrode. As described, to form a bag-like cover, a strip of thicker plastic material 4 may be welded to one edge at the same time, the strip 4 having holes 6 for the insertion of the cover in a collection case, Fig. 1 (not shown). The counter electrode is covered with a heat insulator with a high loss-factor such as pressboard, to assist welding. A thin layer of "Teflon" (Registered Trade Mark) may be inserted between the counter electrode and the pressboard. The arm of the L-shaped electrode operating on the thicker strip 4 is transversely rifled, and not covered, while the arm operating on the sheet material only is covered with rubber.
Patent GB-1196539-A (GB)
Title: Dry Lubrication Systems
Inventor: MIQUEL JOSEPH
IPC: F16N15/00
Filed: 1968-10-30
Abstract: 1,196,539. Lubricating. J. MIQUEL. 30 Oct., 1968 [30 Oct., 1967], No. 51527/68. Heading F2A. In a dry lubrication system, a composite element, formed by a support of magnetic material having a layer of solid lubricant thereon, is carried by a first relatively movable member, is presented to a surface of a second relatively movable member and is urged against said surface of said second member by means of a magnetic field. The support may be provided with grooves, notches or holes for attaching the lubricant layer, may be cylindrical, and may have a cubic or parallelepipedic shape, the lubricant layer being fixed to one of the flat surfaces thereof. The lubricant layer may contain metallic fibres, heat resistant fibres or powder; and may be applied to the support in the form of a paste which may include polymerization resin, a varnish or a glue and may be heated and pressed into position.
Patent GB-1090726-A (GB)
Title: The production of liquid polymeric compositions
Inventor: HOLUB FRED FRANK
IPC: C09D5/25
Filed: 1964-12-21
Abstract: Solutions of polyamide acids in phenolic solvents are obtained by heating under initially substantially anhydrous conditions a mixture of (a) a phenolic solvent, (b) a carbonyl diphthalic (benzophenone tetracarboxylic) anhydride, and (c) a defined diamine to a temperature below 160 DEG  C. but sufficient to cause the reactants to form a solution which remains clear and homogeneous on cooling to room temperature. The defined diamines are C2- 8 alkylene diamines, m-phenylene diamine, and those of the formula H2N-C6H4-R-C6H4-NH2 wherein R is C1- 3 alkylene, -CO-, -O- or -SO2-.  Specified solvents are phenol, cresols, xylenols and their halogenation derivatives. They may be diluted with aromatic or hydrogenated aromatic hydrocarbons.  The solutions may be used as wire enamels, impregnants for fibrous materials or casting films or the polymer may be precipitated and used as a moulding or extrusion compound with or without dyes, fillers or pigments, e.g. wood flour, diatomaceous earth, carbon, silica, or abrasives such as silicon carbide or diamond gut.  In one Example (4) hydroxyquinoline antioxidant was incorporated in a solution used as an insulating coating composition. The solutions are stated to contain polymer of intrinsic viscosity 0.3 to 0.8 in cresol.ALSO:Insulating polyimide coatings are obtained from solutions of polyamide acids in phenolic solvents prepared by heating under initially substantially anhydrous conditions a mixture of (a) a phenolic solvent, (b) a carbonyl diphthalic (benzophenone tetracarboxylic) anhydride and (c) a defined diamine to a temperature below 160 DEG C but sufficient to cause the reactants to form a solution which remains clear and homogeneous on cooling to room temperature.  The defined diamines are C2-8 alkylene diamines, m-phenylene diamine, and these of the formula H2N-C6H4-R-C6H4-NH2 where R is C1-3 alkylene, -CO-, -O-or -SO2-. Specified solvents are phenol, cresols, xylenols and their halogenation derivatives; they may be diluted with aromatic or hydrogenated aromatic hydrocarbons. The solutions may be used to insulate wires either alone, or in conjunction with another polymer coating (above or below), and as dipping varnishes for coils of previously insulated wire.  In Examples the solutions are used to coat aluminium or plain or nickel coated copper wire (3 coats each cured 3 minutes at 300 DEG C).  In Ex. 4 an antioxidant (hydroxyquinoline) is included in the solution.
Patent GB-1029387-A (GB)
Title: Improved stress-crack resistant polyethylene compositions
IPC: C08K3/04
Filed: 1964-12-22
Abstract: The stress-cracking-resistant polyethylene compositions of Specification 877,128 comprising a normally solid polyethylene in admixture with a drying-oil-soluble resinous condensation product of a phenol and an aliphatic aldehyde, and with an additive comprising carbon black, an anti-oxidant for polyethylene or a mixture thereof, is rendered less tacky by the incorporation therein of hexamethylenetetramine. In the examples a condensation product of para-tertiary-amylphenol and formaldehyde is used.  A number of other phenols are listed.
Patent GB-1057120-A (GB)
Title: An arrangement for setting and keeping constant the mass flow of gases
IPC: G05D7/01
Filed: 1965-12-08
Abstract: 1,057,120. Gas distribution systems. SIEMENS & HALSKE A.G. Dec. 8, 1965 [Dec. 9, 1964], No. 52151/65. Heading F4X. [Also in Division G3] An arrangement for maintaining a constant mass flow of gas to consumer devices at which there may be a varying pressure drop, comprises a chamber 4, maintained at a constant temperature and having a pressure gauge 9. Gas is supplied from a source 1 at a pressure p q  through a reducing valve 5 to the chamber where the pressure is p o  and flow from the chamber to a consuming device 8 taken place through a Laval nozzle or apertured diaphragm 6. The pressure at the consuming device 8 is p v  and the arrangement is such that P q #P o #2P v . The gauge 9 gives a reading of the mass flow and the nozzle may be replaced for different flows.
Patent GB-1459020-A (GB)
Title: Sound insulation structure
IPC: E06B3/66
Filed: 1974-12-03
Abstract: 1459020 Glazing YOSHIDA KOGYO KK 3 Dec 1974 [3 Dec 1973] 52268/74 Heading E1R An insulated window comprises three transparent sheets in parallel spaced relationship, at least one sheet being of different thickness, elastic holding means B having grooves 4, 5 in which the edges of the outer sheets are adhered and a groove 6 in which the intermediate sheet is freely supported. The inner sheet is thicker than the outer sheets. The means B has cavities 7, 8 containing dessicant in communication with the air spaces between the sheets. Surfaces 11, 12 between the sheets are covered with sound absorbing material, eg felt. The means B is secured in a wood frame 14; alternatively it is secured by adhesive in a metal frame (40, Fig. 3).
Patent GB-1495556-A (GB)
Title: Stepped-piston two-stroke engines
IPC: F02B75/02
Filed: 1973-11-10
Abstract: 1495556 Stepped piston engines NORTON VILLIERS Ltd 10 Feb 1975 [10 Nov 1973] 52293/73 Heading F1B A two-stroke I.C. engine has one or more cylinders each containing a stepped piston, each cylinder and piston having a pumping part of larger diameter and a working part of smaller diameter, air being delivered from the pumping part or parts of the cylinder(s) and is characterized in that the engine is provided with means to receive a portion of the air from the pumping part of the cylinder and to feed the portion of air as secondary air to an emission control device where it mixes, when the engine is in operation, with the exhaust gases discharged from the working part(s) of the cylinder(s). The pumping part 15 of the piston delivers air only to two receivers 30, when recess 33 uncovers two ports 32 as the piston approaches T.D.C. At the same time some air (secondary air) leaves the pumping cylinder by union 28 and non-return valve 27 and through nozzle 25 is ejected into annular space 24 between the wall of an exhaust passage leading from exhaust port 18, and a heatresistant metal sleeve 23. The secondary air mixes with the exhaust gases to promote after-combustion in thermal reactor 20. Valve 22 causes turbulence to mix the air and exhaust gas. As the piston approaches B.D.C. the ports 32 are uncovered and air from the receivers scavenges and re-fills the working cylinders. Fuel is injected into the receivers 30, passages 31 or the combustion chamber. In a multi-cylinder engine, the cylinders are grouped in pairs and the pumping part of one piston/cylinder supplies air to the other cylinder. A receiver may be common to more than one  cylinder but in all cases, the receiver volume is at least three times the swept volume of the pumping part of one cylinder. The swept volume of the pumping part is 1À3 to 1À4 times the swept volume of the working part. Fig. 4 shows an engine having a stepped piston working at each end of a single cylinder. Part 83 of piston 79 controls exhaust ports 84. Inlet ports 87 are controlled by part 81 of piston 78. There is a spark-plug 91 and fuel injector 90.
Patent GB-1267859-A (GB)
Title: Improvements in or relating to high temperature-resistant moulded masses for brake linings
IPC: C08L61/06
Filed: 1969-10-27
Abstract: 1,267,859. Friction materials. SEMPERIT A.G. 27 Oct., 1969 [28 Oct., 1968], No. 52458/69. Headings C3P and C3Q. A brake lining comprises fillers bound with a binder comprising carbonized nitrile rubber. The composition may also contain other binders such as phenolic resins, carbonized neoprene and carbonized reclaim. The fillers include kaolin, iron powder, brass shavings, magnesia, iron sulphide and asbestos. '
Patent GB-1472679-A (GB)
Title: Low calorie sweetening composition
IPC: A23L27/00
Filed: 1975-12-22
Abstract: 1472679 Low-calorie sweetener GENERAL FOODS CORP 22 Dec 1975 [23 Dec 1974] 52498/75 Heading A2B A readily-dispersible, non-foaming, lowcalorie sweetener containing an edible bulking agent, a low-calorie sweetener and a defoaming agent is prepared by a) forming an aqueous solution of a minor amount of the bulking agent, a minor amount of the sweetener and all or a major amount of the defoaming agent and spray drying the solution, b) forming a second aqueous solution of a major amount of the bulking agent, a major amount of the sweetener and the remainder of the de-foaming agent and spray-drying to form a second dry composition, and blending ;the two dry compositions from a) and b). Bulking agents specified include organic acids such as citric, fumaric and adipic acids, hydrolysed starches such as dextrins, polymerised dextrins such as polymaltose, polyglucose and sugars, and corn syrup solids. De-foaming agents specified include dimethyl polysiloxane and copolymers of dimethyl siloxane and silicon dioxide. Low-calorie sweeteners which may be employed include saccharin and its soluble salts, cyclamate and its soluble salts, and L- aspartic acid derivatives, particularly dipeptide sweeteners such as L-aspartyl-L-phenylalanine methyl ester and its salts.
Patent GB-1096960-A (GB)
Title: Addition reactions of aminoacetylenes
IPC: C07D205/06
Filed: 1964-12-28
Abstract: Aminoacetylenes Y-C­C-NR2, where Y is hydrocarbyl, H or NR2 and R is hydrocarbyl (or R-R is alkylene), are reacted with compounds containing at least one active H atom, provided that when the compound is a secondary amine, a mineral acid catalyst is used. Specified products are:  1,1-dihaloamines (using hydrogen halides as the active H compounds), 1-aminovinyl ethers (alcohols or phenols), amidines and P-analogues (primary amines and phosphines), 1-amino-oximes (NH2OH), 1-aminovinyl thioethers (thiols), bis(1-amino) azines (N2H4).
Patent GB-1331063-A (GB)
Title: Motionconverting gearing
IPC: F16H27/04
Filed: 1970-11-05
Abstract: 1331063 Toothed gearing R BUCHSTEINER B BERNHARDT and H KOWALSKI 5 Nov 1970 [8 Nov 1969] 52777/70 Heading F2Q Mechanism for converting constant rotation of an input shaft 1 into intermittent rotation of an output shaft 2 comprises substantially elliptical gears 3, 4 secured to the shafts 1, 2, each gear having a toothed section and an untoothed section, a roller support 5 secured to input shaft 1, a pair of rollers 7, 8 rotatably secured to the support 5, and a cam member 9 secured to output shaft 2. On clockwise rotation of input shaft 1 from the position shown in Fig. 3, roller 8 enters an accelerating cam groove 9b and causes acceleration of output shaft 2. As the roller 8 leaves the groove 9b, the toothed portions of the gears come into mesh, Fig. 4. At the end of the meshing period, Fig. 6, roller 7 enters a decelerating cam groove 9a and effects deceleration of the output shaft 2 until the original position, shown in Fig. 3, is reached. In this position, the rollers 7, 8 engage the outer ends of walls 10 of the cam grooves 9a, 9b. The rollers 7, 8 are located so that their peripheral surfaces are tangential to the pitch line of the elliptical gear 3. Preferably the roller support 5 comprises a worm-wheel 15 which is driven by a worm 14.
Patent GB-1361710-A (GB)
Title: Vertical crucible-free zone melting
IPC: C30B13/28
Filed: 1972-11-17
Abstract: 1361710 Zone melting V F BELOV V I DOBROVOLSKAYA V I KIRYANOV M I OSOVSKY D G RATNIKOV O V SEMENOV K N NEIMARK V K ZHIGAREV S V TERENTIEV Y M MYLENKO I I KHABNER and V F KLESHKO 17 Nov 1972 53147/72 Heading BIS A monocrystalline rod, e.g. of silicon, is formed by vertical crucible-free zone melting of a rod, preferable in presence of a seed crystal, by creating a molten zone at one end of the rod using a circular inductor of less internal diameter than the diameter of the rod, transporting the zone to the other end of the rod, displacing the inductor perpendicular to the axis of the rod to a position offset from the rod, arranging the inductor whilst offset from the rod at a position level with the initial starting position and returning the inductor to its initial position by again displacing the inductor perpendicular to the axes of the rod. The displacing of the rod is preferably effected by either a discontinuity in the molten zone or by a gap formed in one of the chucks holding the rod. Either the rod or inductor may be moved. As shown in the figure apparatus for carrying out the process comprises an air-tight chamber 13 accommodating chucks 4 and 6, introduced into the chamber through slide seals 14. Fixed in the chucks are rod 2, and seed crystal 3. The molten zone 5 is formed by inductor 1, set up on a vertical coaxial current lead 15 and introduced into the chamber by a slide seal 14. Relative vertical movement of rod 2 and inductor 1 is effected with the aid of an upper carriage 16 and a lower carriage 17 in which are respectively secured chucks 6 and 4. Rotation of screw 19 by drive 22, the screw 21 being stationary, results in combined vertical movement of carriages 16 and 17, chucks 6 and 4, and the rod 2 with respect to the inductor 1. Relative vertical movement of the chucks 6 and 4 is effected by shaft 20 and screw 21 operated by drive unit 23. The inductor is brought beyond the limits of rod 2 and returned to its initial position coaxially with the rod by rotating lead 15. In operation the rod is displaced relative to the inductor 1. The inductor is displaced perpendicular to the axis of the rod by making the molten zone 5 discontinuous by raising chuck 6 using drive 23 and subsequently rejoining zone 5 by reversing drive 23. A gap may be formed in chucks 6 and 4 using the techniques and constructions of Figs. 3 and 5 respectively (not shown).