baber/WOPTO huggingface dataset:
Patent GB-1423872-A (GB)
Title: Quaternary ammonium polymers
IPC: C08F8/00
Filed: 1973-08-07
Abstract: 1423872 Quarternary ammonium polymers CALIFORNIA INSTITUTE OF TECHNOLOGY 7 Aug 1973 [14 Aug 1972] 37436/73 Headings C3R and C3P Polyelectrolytes having molecular weights of at least 5000 and containing or consisting of linear polymer chains with repeating units of formula where x is 3 or more than 6 and z is chlorine, bromine or iodine, are obtained by polymerizing in the absence of oxygen monomers of formula The polymers may be homopolymers or chains of the repeating units may be attached to a polymer or monomer having a plurality of functional groups reactive with Z or with (CH 3 ) 2 N- end groups, so that the chains are attached to the polymer or monomer. The polyelectrolytes may be added to suspensions of particles in liquids to flocculate the particles and enable them to be separated from the liquids. They may be coated on paper to obtain photocopy material. They may be converted from water-soluble substances to water-insoluble substances by heating or by reaction with cross-linking agents. They may be mixed with other polymers and formed into films. In examples homopolymers are prepared from 1,3- dimethylaminopropyl chloride; hydrogels are prepared by reacting the homopolymers with polyvinyl alcohol and with a mixture of polyvinyl alcohol and polyacrylic acid, films being cast from the hydrogels; branched polymers are obtained by polymerizing 1,3-dimethylaminopropyl chloride on to polytertiary amine compounds obtained by reacting 1,3-bis-(dimethylamino)-2-propanol with hexamethylene-1,6-diisocyanate and with toluene-2,4- diisocyanate, and by polymerizing the monomer on to 2,4,6-tri-(chloromethyl)- mesitylene and on to 1,2,4,5-tetra-(chloromethyl) - benzene; dimethylaminopropyl chloride also is polymerized to form side chains on polyvinylbenzyl chloride, on poly 4-vinylpyridine and on polyethylene imine; an insoluble cross-linked hydrogel film is prepared from the reaction product of polyvinyl alcohol and acrylic acid with the polymer having side chains attached to poly 4-vinylpyridine; paper is coated with a composition of a clay and the polymer having side chains attached to poly 4-vinylpyridine; the homopolymers and branched polymers are used to flocculate suspensions of clay and to dewater sludge.
Patent GB-1570971-A (GB)
Title: Stabilised liquid enzyme and coenzyme compositions and method of preparing same
IPC: C12Q1/48
Filed: 1977-09-08
Abstract: Labile coenzymes such as nicotinamide adenine dinucleotide (NAD) and/or enzymes are stabilised by treatment with an organic solvent in aqueous medium while the pH is adjusted within a range of 6.0 to 8.5. An azide may be added to the solution, not only as bacteriostatic agent, but also as stabilising agent. A second coenzyme, such as adenosine triphosphate, may also be stabilised in the same solution. One or more enzymes, such as hexokinase or glucose-6-phosphate dehydrogenase, may also be stabilised against denaturation in the same solution. The process yields a very stable composition which can be used in assays for biological diagnosis.
Patent GB-848496-A (GB)
Title: Winding support
IPC: H02K3/52
Filed: 1958-11-21
Abstract: 848,496. Securing coils for dynamo-electric machines. ALLMANNA SVENSKA ELEKTRISKA A.B. Nov. 21, 1958 [Dec. 13, 1957], No. 37486/58. Class 35. A wedging device, acting as a winding support insertable in an axial direction between two adjacent salient poles 1 and 2 of an electrical machine, includes support-blocks 4 and 5 placed against the insulated sides of the coils 16 and 17 and held in position by ribbons 6 and 7. Two pressure-blocks 9 and 10, which have convex cylindrical surfaces, are pressed against the support blocks by wedges 11 inserted in grooves 18 in the pressure blocks. The wedges 11 are pulled together by rotating nut 13 on bolt 12 fixed to one wedge and passing freely through the other. Stop-pins 14 and 15 prevent the wedging-device from passing right through the gap and from falling out of position during the tightening of nut 13.
Patent GB-1072131-A (GB)
Title: A fastener assembly to be driven into fibrous materials and a method of fastening such materials
IPC: B25C1/18
Filed: 1964-09-16
Abstract: 1,072,131. Securing studs to work; nails. ANSTALT FAR MONTAGE-TECHNIK. Sept. 16, 1964 [Sept. 17, 1963], No. 37749/64. Heading F2H. A nail or a stud (e.g. with a screwthreaded head and tapered shank) has a ring 2 of material such as hardened metal on its pointed end 1 so that when the fastener is driven into fibrous material such as wood, e.g. by explosive, the ring punches a hole through without splitting the material. When the fastener penetrates hard material such as concrete in its further travel, the ring is driven back along the shank until it splits and the fibrous material is secured to the hard material. The ring 2 may be a force fit on the pointed end 1 and may have an axial length similar in size to its outer diameter which approximates to that of the fastener shank. A synthetic plastics sleeve (3), Fig. 2 (not shown), may be moulded over a ring (2a) to grip the pointed end near the shank and position the ring. The ring may be a sleeve (2b), Fig. 3 (not shown).
Patent GB-1034621-A (GB)
Title: Improvements in and relating to catalysts
Inventor: RYCKE DOUGLAS AUGUST CHARLES D
IPC: B01J37/02
Filed: 1962-10-06
Abstract: A noble metal-containing catalyst bed comprises two layers of unequal thickness, the thinner containing a greater proportion of the noble metal and the thicker containing at most a minor proportion of the noble metal.  The bed may be used to oxidize combustibles in a gas stream comprising oxygen, for which purpose the layer containing the greater proportion of noble metal is upstream of the thicker layer. The thicknesses of the layers is preferably 1 : 50 to 1 : 10, and as exemplified, the thicker layer contains no noble metal and a mixture of CO, C6H6 and C6H14 is oxidized using a layer of Pt or Pd supported on g -Al2O3 and a layer of g -Al2O3 alone. The thick layer may however comprise a base metal catalyst, e.g. copper oxide.
Patent GB-1142390-A (GB)
Title: Drying peat
IPC: F26B3/092
Filed: 1967-08-18
Abstract: 1,142,390. Dewatering peat. OTTO A. MœLLER. 18 Aug., 1967 [25 Aug., 1966], No. 38050/67. Heading C5G. Water is removed from comminuted peat in an ascending current of hot air, the temperature of the air being such that the peat is rapidly heated, causing sudden vaporization of water, and the supply of peat to the air current being controlled to maintain constant the temperature of the air in contact with the peat. Air temperatures of 200‹ to 300‹ C. are preferred, and the peat supply is controlled, e.g. automatically, to maintain the air / peat mixture at 100‹ C. Comminuted peat is fed at 9 to a screw conveyer 10 which delivers it to an impeller 14 which throws it horizontally into a housing 6 supplied through a tangential inlet 5 with hot air from a burner chamber 3. Ducts (16), 17 lead to cyclone separators (18), 19 with outlets 20 for the dewatered peat.
Patent GB-1126623-A (GB)
Title: Improvements in or relating to teaching aids
IPC: G09B23/18
Filed: 1964-09-18
Abstract: 1,126,623. Educational appliances. A. J. TUDOR. 1 Sept., 1965 [18 Sept., 1964], No. 38176/64. Heading G5G. [Also in Division H2] A teaching aid for use in teaching electrical principles comprises a pedestal having a centrally located boss and a plurality of circumferentially spaced columns extending upwardly therefrom, bearing means in said boss, a rotor mounted on a shaft one end of which is detachably journalled in said bearing means and the other end of which is unjournalled, and a stator located and detachably supported on said columns so that the stator surrounds the rotor, the rotor being removable from said bearing means in an axial direction without removing the stator from the pedestal. As illustrated the pedestal 13 also has three downwardly extending columns which are adapted to receive the ends of extension rods 22 of a further aid. The rods may also have brush holders clamped thereto, the brushes of which engage slip rings 42. The aid may include a number of interchangeable rotors and stators.
Patent GB-1438521-A (GB)
Title: Electrolytes for the electrodeposition of gold and gold alloys
IPC: C25D3/62
Filed: 1973-08-13
Abstract: 1438521 Electro-deposition of gold and gold alloys SCHERING AG 13 Aug 1973 [6 Sept 1972] 38248/73 Heading C7B Electrolyte for the electro-deposition of gold or gold alloys comprises (a) gold, e.g. as potassium dicyanoaurate, (b) an aldehyde, e.g. formaldehyde, acetaldehyde or glyoxal, (c) an amino compound of the Formula R" 2 N-(R'-NR")m-(R')n-NR" 2  in which R" = hydrogen, alkyl, hydroxy alkyl or aryl group, R' = alkylene group and m and n = 0-3, e.g. hydrazine, methyl-, propyl- or phenylhydrazine or an ethylene amine or a salt thereof, e.g. chloride or acetate; and (d) an alkali metal, e.g. Na or K, arsenite or arsenate, The bath may also contain boric acid; alcohol, e.g. ethylene glycol; a conductive salt, e.g. ammonium or alkali metal sulphate, nitrate or chloride; a buffer; a surfaceactive agent; and alloying material one or more of Ag, Cu, Zn, Cd, Mn, Co, Ni, Pd, In, Sb and Sn.
Patent GB-927511-A (GB)
Title: Pressure operated control valve
IPC: F15B13/07
Filed: 1961-10-26
Abstract: 927,511. Valves. CINCINNATI MILLING MACHINE CO. Oct. 26, 1961 [April 17, 1961], No. 38337/61. Class 135. A valve comprises a body 10, a pair of primary fluid passages 30, 32, a control plunger 38 for controlling communication between the primary fluid passages, means 60 to produce a bias force to hold the plunger in the closed position, means to provide equal and opposed hydraulic forces on the plunger in that position, and means to limit the hydraulic force in one direction where the fluid pressure in the passage 30 exceeds a predetermined value whereby the bias force is overcome and the plunger 38 shifted to open position. The passage 30 is connected by a pair of restrictions 36a, 36b and a passage 36 to a space 58 normally closed by a relief valve 66 so that equal pressures are applied to opposite ends of the plunger 38. When the pressure in the passage 30 rises above a predetermined value the valve 66 is lifted against the pressure of a loading spring 68 to effect gradual communication between the space 58 and a drain 78. Flow through the restrictions 36a, 36b now causes the pressure in the space 58 to be maintained at an upper limit. Further increase in pressure at the inlet 30 acting through passages 34, 34a on a plug 50, cause the plunger 38 to shift upwardly and place the passages 30, 32 in communication. A non- return valve 48 inside the plunger 38 permits free reverse flow and has a passage 80 to permit fluid trapped in bore 46 to escape. The valve 66 has a passage 74 of inverted L-shape to co-operate with a bore 72 having an enlarged top edge and is mounted in a separate housing 16 having a screw 10 to adjust the load on the spring 68.
Patent GB-857493-A (GB)
Title: Combustion equipment for gas turbine engines
Inventor: BROADBENT DAVID CHARLES
IPC: F23R3/10
Filed: 1957-12-12
Abstract: 857,493. Generating combustion products under pressure. NAPIER & SON Ltd., D. Nov. 25, 1958 [Dec. 12, 1957], No. 38713/57. Class 51 (1). A combustion chamber. and combustion air inlet duct assembly for a gas turbine engine (Figs. 1 and 3) has in the air inlet duct 10, an air distributer device comprising a shroud 12 which surrounds the upstream end wall of a flame tube 22 thus enclosing the primary air inlets of the combustion chamber and has a mouth 14 which faces upstream and opens across the full height of the inlet duct in a zone upstream of the flame tube so as to split the air stream at this zone into a primary air stream flowing through the mouth and secondary air streams on each side of and outside the mouth. The primary air flows into the combustion zone via perforations in the flame tube end wall 22, and in a conical cap 23 attached to the end wall. The secondary air enters the flame tube via apertures in the side walls 19 thereof. The shroud is held in position by longitudinal partition walls 17 diametrically opposite pairs being spaced apart laterally to define between them a " dead " space 18 in which no air flow occurs but through which may pass an igniter plug or fuel pipe.
Patent GB-361164-A (GB)
Title: Improvements in electrodes for electric accumulators having alkaline electrolytes
IPC: H01M4/26
Filed: 1930-12-24
Abstract: 361,164. Galvanic batteries ; alloys. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.-(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on-Main, Germany.) Dec. 24, 1930, No..38887. [Class 53.] Negative electrodes of porous iron for use in alkaline accumulators are strengthened by incorporating in the electrodes unattackable strips of iron-nickel alloy which may run across the electrodes parallel to the edges or may form a framework round the edges. The strips of alloy may be made by impregnating the edges or other parts of the electrode with a solution of a nickel salt such as the nitrate and then washing the plate with caustic alkali solution to precipitate nickel hydroxide in the impregnated parts. The plate is then heated in hydrogen or other reducing atmosphere to reduce the nickel hydroxide to metallic nickel which forms an alloy with the iron. The impregnation of the electrode in strips running across its face may be effected by covering the electrode with a plate having openings corresponding to the strips to be impregnated and then sucking first a solution of a nickel salt and then a solution of caustic alkali through the openings and through the parts of the electrode beneath the openings. In another method powdered iron is filled into a mould and the powder removed at the edges and in strips parallel to the edges and replaced by a mixture of 90 per cent of iron powder and 10 per cent of nickel powder. The mould is then heated to 650‹ C. until a coherent porous metal plate is obtained. The sintered plate is then further heated to 1100‹ C. to cause the nickel to alloy with the iron. The porous iron plate is preferably made from powdered iron obtained by the decomposition of iron carbonyl. The finished plate may be used as the negative electrode in an alkaline accumulator or the pores may be filled with active material such as cadmium oxide which may be introduced by impregnating the plates with a solution of a cadmium salt and precipitating cadmium hydroxide within the pores by caustic alkali solution. The Provisional Specification states that parts of the iron plates may be protected against attack by impregnating them with paraffin wax or similar substances.
Patent GB-1272453-A (GB)
Title: Improvements related to diaphragm springs
Inventor: BASSETT NORMAN EDGAR
IPC: F16F1/32
Filed: 1969-08-04
Abstract: 1,272,453. Diaphragm spring; friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. 27 July, 1970 [4 Aug., 1969], No. 38957/69. Headings F2C and F2S. A diaphragm spring for a plate type friction clutch consists of an annular disc 10 having radial slots with enlarged radially outer ends. The ends 16 of some, 12, of the slots are required to be smaller and nearer the centre of the disc than the ends 15 of the others, 11. The slots 12 alternate with the slots 11 round the disc. The periphery of the disc bears on a pressure plate of the clutch, the inner ends of the fingers defined by the slots co-operate with a release bearing, and the intermediate annular region engages a support to which the spring is secured by, e.g., a bolt or rivet passed through the ends 15 of the slots 11.
Patent GB-1280889-A (GB)
Title: Machines for positioning caps on bottles
IPC: B67B3/062
Filed: 1969-08-04
Abstract: 1280889 Capping bottles etc; endless conveyers CONGEX 4 Aug 1969 [8 Nov 1968] 38960/69 Headings B8A and B8T A machine for sealing bottles comprises an endless chain 4 for conveying cap grippers 5, and a bottle conveying web 12, both the chain 4 and web 12 being driven by the same motor 126, their relative motions being synchronized. Each time a gripper assembly 3 passes in front of the outlet of the cap magazine 1, the gripper jaws (51), (51A), Fig. 3 (not shown), are closed under the action of roller wheels (91), Fig. 4 (not shown), and a cap 2 is taken in the jaws and borne to meet the advancing assembly of bottles 11. The cap is caused to engage the bottleneck 2<SP>1</SP>, the gripper 5 opening under the action of wheels (101), (102), Fig. 2 (not shown). The gripper 5 is caused to effect a pivotal movement about its axis by means of the groove-cams 108 and 109 for alignment with the cap assembly. The machine may include an electromagnetic safety device which prevents a cap being gripped when one or more bottles is missing on the conveying web 12.
Patent GB-1160676-A (GB)
Title: Improvements relating to Cellulosic Textiles
IPC: D06M10/10
Filed: 1966-09-01
Abstract: 1,160,676. Grafting cellulosic material. DEERING MILLIKEN RESEARCH CORP. 1 Sept., 1966 [7 Oct., 1965], No. 39032/66. Heading C3G. A cellulosic fabric is impregnated with a compound containing at least one ethylenically unsaturated group and at least one secondary group reactive with hydroxyl groups of cellulose together with a catalyst for the reaction of the secondary groups with the hydroxyl groups, the impregnated fabric is subjected to conditions such as to cause the secondary groups to react with the hydroxyl groups of cellulose and during or after this reaction the fabric is, in the presence of 15 to 85% absorbed water based on the dry weight of fabric, subjected to ionizing irradiation, whereby the compound polymerizes and becomes bonded to the cellulose by a carbon-carbon bond. The said compound containing a secondary group may be formed in situ, e.g. by reacting an aldehyde with an acrylamide in the fabric. A cellulosic modifier, e.g. carboxymethyl cellulose and a textile cross-linking agent such as an amino resin, an acrolein-urea-formaldehyde resin, a cyclic ethylene-urea-formaldehyde resin or a triazone resin may also be incorporated in the impregnating solution. The cellulosic fabric may comprise a mixture of cellulosic fibres with synthetic fibres, e.g. polyester, polyamide, acrylic or polyolefin fibres or with keratin fibres. In the examples, cotton broadcloth is impregnated with an aqueous solution containing N - methylol acrylamide, N,N- dimethylol acrylamide or the reaction product of acrylamide, formaldehyde and ethyl triazone (2 : 4 : 1 molar ratio) and MgCl 2  as catalyst and the impregnated fabric is cured by heating, irradiated and dried.
Patent GB-339510-A (GB)
Title: Improvements in or relating to water softening apparatus
IPC: C02F1/42
Filed: 1929-12-21
Abstract: 339,510. Kr³ger, S. A. Dec. 21, 1929. Purifying liquids. - In water-softening apparatus in which the flow of water through base - exchanging material 2 in a tank 1 is controlled by a multipleway valve A capable of adjustment either for softening, or flushing, or regeneration, automatic regeneration is obtained by communication of the filter tank with a vessel 3 containing regenerating liquid through a check valve 4 adapted to be opened by the pressure of the regenerating liquid when the pressure of liquid in the filter tank is decreased by cutting off the supply of hard water. The check valves 4 remains closed as long as the tank 1 is maintained full of liquid. The valve A has five outlets connecting with an outlet waste pipe 7, a hard water supply pipe 9, a pipe 11 leading to a funnel 12, a discharge pipe 14 for softened water, and a pipe leading to a distributor 21. Two pairs of the outlets can be connected simultaneously. A rose 16 over a salt container or sieve 3 may be connected to and fed from the discharge pipe 14 by means of a float valve 17 operated by the level of liquid in the vessel 3. For the purpose of regeneration, the valve is adjusted so that it connects the distributor 21 to the waste 7 in order to run off water from the tank 1, and also the supply pipe 9 to the discharge, pipe 14, thus cutting off further supply to the tank 1. The check valve opens on release of the pressure in the tank 1 and cornmunication with the regenerating liquid is thus established. As the level of the latter in the vessel 3 falls, the float valve 17 opens and hard water passes into the sieve 5 thus forming more salt solution for regenerating. During the processes of softening and flushing the check valve remains closed owing to the tank 1 being kept full of liquid. The valve A can be adjusted so that the hard water may flow either from the pipe 9 to the funnel 12, then through the material 2, the distributor 21 and thence to the pipe 14 as softened water, or else, for flushing, in the reverse direction through the material and finally to the waste pipe 7 instead of to the pipe 14.
Patent GB-918685-A (GB)
Title: Electrical elements for detecting the presence of liquids, vapours or gases
IPC: G01M3/04
Filed: 1960-11-16
Abstract: 918,685. Measuring electrically. DOLAN, J. P., and JORDAN, W. M. Nov. 16, 1960 [Dec. 11, 1959], No. 39430/60. Class 40 (1). An electrical resistance element, whose resistance is dependent on the presence and type of liquid, vapour, or gas, to which it is exposed, comprises a base having a resilient non-conductive surface with a stratum of exposed, electrically conductive, discrete, adsorbent particles, independently anchored to the resilient surface with conductive contact normally existing between adjacent particles throughout said stratum in the absence of adsorption but which are forced apart out of contact in the presence of a fluid which is adsorbed by the stratum of particles. The layer may be on a flat-base, Fig. 1 (not shown), a cylindrical base, Fig. 4 (not shown), or the layer may be deposited on the insulation around the extended centre conductor 24, Fig. 3, of a coaxial cable, the stratum being connected at one end to the centre conductor by a terminal connector 36 and at the other to the shielding 28 by a terminal connector 38, the connectors being formed by a conductive lacqeur. The particles may be fixed to the surface of the resilient layer by means of an intermediate layer of an adhesive or in the method described the particles are spread over a heated metal plate and a paper backed sheet of polyethylene film 0.001 inch thick pressed against the particles with sufficient force to anchor the particles to the tacky surface of the polyethylene film, the strip then being removed from the heated plate and cooled. In this method the particles were of 90% pure zinc free silver having a mean diameter of 0.001 inch.
Patent GB-891307-A (GB)
Title: Computing and indicating machine
IPC: H01H19/58
Filed: 1959-11-20
Abstract: 891,307. Football forecasters. SCARISBRICK, R. F. Nov. 17, 1960 [Nov. 20, 1959], No. 39510/59. Class 106 (1). The forms of two football teams are compared on a mathematical basis so as to forecast the probable result of a game between them. With switch Y set to position H, digital information concerning the home team is entered manually on selectors A, B and C. Selector D is then positioned so that lamp Z glows at which position ¢(A+B/2 + C), discounting fraction is set up in D. With switch Y set to position A, like information regarding the away team is set up. When key P is closed lamp 1, 2 or X glows to indicate the probable result of the match.
Patent GB-848026-A (GB)
Title: Improvements in or relating to rotary internal combustion engines
Inventor: BREELLE YVES
IPC: F01C1/20
Filed: 1957-12-19
Abstract: 848,026. Rotary I.C. engines. INSTITUT  FRANCAIS DE PETROLE, DES CARBURANTS ET LUBRIFIANTS. Dec. 19, 1957 [Dec. 19, 1956], No. 39558/57. Class 110 (2). In a rotary I.C. engine of the rotary abutment type wherein one of the abutments is provided with at least one combustion chamber C1 or is associated with at least one combustion chamber formed in the stator, see Fig. 2 (not shown), scavenging or supercharging of said combustion chamber is effected by inducing air through a conduit C, compressing it against a second rotary abutment G and feeding it to the said combustion chamber through a passage F in the stator. The discharge port T of the passage F may be provided with a flap-valve. Specifications 795,898, 838,166, 840,756 and 843,282 are referred to.