baber/WOPTO huggingface dataset:
Patent GB-1298660-A (GB)
Title: Dispersion hardened alloys based on iron, nickel, cobalt or chromium
IPC: C22C1/10
Filed: 1971-04-19
Abstract: 1298660 Dispersion-hardened alloys DEUTSCHE EDELSTAHLWERKE A G 19 April 1971 [28 March 1970] 21509/71 Heading C7D Dispersion-hardened alloys based on one or more of Fe, Co, Ni and Cr and containing W and/or Mo and a dispersed substance are produced by mixing an aqueous soln. of one or more salts of the metals Fe, Co, Ni and Cr, an aqueous soln. of the salts of W and/or Mo, a colloidal solution of the substance to be dispersed and an aqueous soln. of (NH 4 ) 2 CO 3 ; maintaining the pH of the mixture at 5À5-7À2 to form a ppt. and separating, dying and reducing the ppt. under conditions such that the dispersed substance is not reduced. The substance may be tharia, lanthanium oxide, yttria or zirconia. The pH may be maintained with NH 3  soln. or caustic soda. The powdered alloy produced may be mixed with Ti, Al, Nb, Ta, V or Zr powder and sintered.
Patent GB-720518-A (GB)
Title: Improvements in or relating to rotary field generators
IPC: H02K19/30
Filed: 1952-08-27
Abstract: 720,518. A.C. generators. KAICK, E. VAN, and HESS, H. Aug. 27, 1952 [Aug. 28, 1951], No. 21539/52. Class 35. An alternator 6 is compounded for load current by means of an additional generator 8 whose stator windings carry the load current and whose rotor has a polyphase winding 9 connected to tappings on the armature winding 17 of the commutated exciter 12 supplying the alternator pole-wheel 14, all three machines being mounted on the same shaft. One end of each phase of the alternator windings is led out to terminals U, V, W, while the other ends are connected to ends of the stator winding of the additional machine whose free ends are connected to terminals X, Y, Z. Various output voltages may be obtained by interconnection of the output terminals. In a modification, the windings of the alternator and additional machine are wound in opposite phase sequence so that the exciter must have twice as many poles as the other machines, i.e. eight. In a further modification, the additional winding 9 is connected to a separate winding on the armature of the exciter. Correct phase position may be ensured by angular adjustment of the stators of the additional machine and exciter.
Patent GB-597594-A (GB)
Title: Internal combustion rotary motor
IPC: F02B53/00
Filed: 1945-08-23
Abstract: 597,594. Gas turbines. MOSSBACH, H. Aug. 23, 1945, No. 21571. [Class 110 (iii)] The rotor 25, Fig. 8, has a number of peripheral pockets 24 into which combustion gases are directed by nozzles 63 and from which the gases are exhausted axially through an annular orifice 81, Fig. 3. The angular spacing of the pockets is different from that of the nozzles. An independently rotated wheel 30, Fig. 7, is mounted freely on the shaft 18 of the rotor 25 and is used in the generation of the combustion products. It is integral with a sleeve 31 which carries a fan rotor. 40. Air from the fan is delivered to a carburetter and the mixture passes through a pipe 50, Fig. 7, and a long port 52 into the pockets 36 of the wheel 30. The mixture is exploded as the pockets pass a sparking plug 57 and some of the products of combustion passes into each of a series of conduits 60 by which they are conveyed to the nozzles 63. When they reach the port 95 the pockets are scavenged and filled with fresh air. The mixture from the carburetter is admitted from the pipe 50 through side ports 53, Fig. 9, to a chamber 51 and passes, as shown by arrows in Fig. 7, into the pockets 36. The air brought round in the pockets and which has become heated passes radially across the flow of mixture and is conveyed by the pipe 47 to the fan inlet. Cooling air is drawn in at 85, Fig. 3, passes through the wheel 30 and is discharged at 90. The current is produced by the fan-like spokes 25x of the rotor 25. The wheel 30 is rotated by a part of the combustion products which are diverted in the first conduit 60A and directed by a nozzle against vanes 74 on the side of the wheel. This nozzle is cut in a circularly adjustable disc by which the effectiveness of the jet is varied. If the speed of the wheel is too great and consequently combustion products reach the last of the conduits 60, which has no corresponding nozzle 63 ; such gases pass through a backwardly directed nozzle on to the vanes 74 and the wheel is retarded.
Patent GB-928603-A (GB)
Title: Improvements in pressure relief valves
Inventor: PASK EDGAR ALEXANDER
IPC: F16K17/04
Filed: 1960-06-20
Abstract: 928,603. Valves; pressure-relieving devices for fluids. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 9, 1961 [June 20, 1960], No. 21577/60. Class 135. A relief valve comprises a hollow body 1 having an apertured wall 2, a port 5 for connection to a source of fluid pressure, a closure member 6 the outer marginal portion 7 of which is relatively flexible and the central portion 8 of which is relatively inflexible, a magnet 10 and an armature 9 so relatively located that the portion 7 of the closure member is in engagement with a seating surface 3 at least when the body 1 is pressurized, the closure member being free by virtue of the flexibility of its outer marginal portion to pass bodily through the apertured wall 2 and thereby provide an escape path for fluid under pressure within the body when the pressure exerted on the closure member by the fluid overcomes the attraction between the magnet and the armature. A flange on the closure member engages a face la to arrest the outward movement and resetting of the valve is facilitated by mounting the magnet 10 on a spring-loaded plunger 11. In a further embodiment, the closure member has its outer periphery clamped between an end face of the body and a downwardlyfacing circular rib in a nut while the magnet has an adjustable screw-threaded connection with the lower end of the body. When a predetermined pressure is reached, the closure member is ruptured. A permanent or electromagnet may be used and both the magnet and its armature may be plated with or encased in a material resistant to corrosion. The current supply to the electromagnet may be varied manually or automatically or non- ferrous members may be inserted between the permanent magnet and its armature to alter the pressure at which relief occurs.
Patent GB-1496966-A (GB)
Title: Polytetrafluoroethylene moulding powder
IPC: C08L27/00
Filed: 1975-05-20
Abstract: 1496966 PTFE moulding powders E I DU PONT DE NEMOURS & CO 20 May 1975 [17 June 1974 (2)] 21593/75 Heading C3P PTFE moulding powders are described having a specific surface area of at least 1À5 m.<SP>2</SP>/g., an average particle diameter of less than 100 microns and an appararent density of at least 500 g./l. and at least as great as the value calculated as 500+3À00 (#SG 5-1 ) where #SG 5-1  is 1,000 times the difference in specific gravities of sintered mouldings made at preform pressures of 1,000 p.s.i. (70 kg./cm.<SP>2</SP>) and 5,000 p.s.i. (325 kg./cm.<SP>2</SP>) provided that said #SG 5-1  is no greater than 75. Two methods of preparation are described: (1) starting from PTFE fine powder, the powder is compacted at 20-30‹ C. and a pressure of 8,000-50,000 p.s.i. (562- 3,513 kg./cm.<SP>2</SP>) followed by partially decompacting the compact to a powder having an average particle size less than 100 microns. The decompacting may be done in a liquid or gas using a high speed cutter/mixer, (2) starting from PTFE granular resin, the material is separated into hard (beta) particles and soft (alpha) particles and the harder particles are milled in the absence of the softer particles to increase the specific surface area and tensile strength. The separation may be effected by a partial milling which reduces the size of the softer particles which are size separated. Both milling operations may be effected in a fluid energy mill. The products may be agglomerated to particles of 300-1,000 microns using water or an organic liquid to improve powder flow.
Patent GB-419323-A (GB)
Title: Improvements in darts
IPC: F42B6/00
Filed: 1933-08-02
Abstract: 419,323. Darts. ROTTENBURG, H., 5, Adams Road, Cambridge. Aug. 2, 1933, No. 21680. [Class 132 (iii).] An adjustable dart comprises a nose part B of metal or wood and a metal, wood or horn part F connected by a screwed metal rod D, tubular metal, wood or horn members E1, E2 of varying size and weight being positioned between the parts B and F for balancing purposes. The point A of metal rod or wire has a flattened head C with which the end of the rod D contacts to hold it in position. A wooden rod H carrying the feathers J1, J2 is inserted in an axial hole G in the part F. A plurality of members E1, E2 are provided for altering the weight of the dart.
Patent GB-651169-A (GB)
Title: Improvements in or relating to rotors for turbo-generators
IPC: H02K1/26
Filed: 1948-08-17
Abstract: 651,169. Cores for dynamo-electric machines. GANZ ES TARZA VILLAMOSSAGI, GEPWAGGON-ES HAJOCYAR R.T. Aug. 17, 1948, No. 21735. Convention date, Dec. 27, 1941. [Class 35] A turbo-generator has a 2-pole rotor 1 in which the winding slots are formed in two groups, one group of which has the slots parallel to line B-B and the other group has the slots parallel to line C-C, the conductors of the two groups cross each other at an angle on the end surfaces of the rotor. Fig. 4 shows how the windings are secured when only the grooves for accommodating the winding belonging to the plane of symmetry B-B are milled at the rotor end. When the winding is introduced in these grooves, the holders 7, shown separately in Fig. 3 (not shown), are fixed on the rotor ends in such a manner as to locate their grooves parallel with the plane of symmetry C-C.
Patent GB-925846-A (GB)
Title: A tower crane
IPC: B66C23/28
Filed: 1961-06-16
Abstract: 925,846. Collapsible tower cranes. FOENETER S.A. June 16, 1961 [June 17, 1960], No. 21800/61. Class 78 (4). A crane comprises a tower built up from sections, a jib, and a hoist, both of which may be moved vertically and independently of one another over the tower, the jib being formed in several sections which allow fitting it on the tower through a lateral assembly of its sections, without it being necessary to dismantle the tower. The hoist is conventionally mounted on any of the four sides of the tower for vertical sliding and the jib comprises arms 20, 27, Fig. 4, which are pivoted to a support 35. This support comprises two lateral halves which are assembled round the tower and bolted together by flanges 81, Fig. 9. Shoes 40 abut vertical members 21 of the tower as the jib moves up and down. Upper and lower frames 41 have rollers 58 which engage rings 80 as the jib slews. The lower frame 41 rests on the lower ring 80 through pivots 53 fitted with ballbearings. In a modification, Fig. 11, the lower frame 41 rests on the ring 80 through pivots 87 carrying arms 88 with rollers 89. In the embodiment of Fig. 14, the jib is raised by a motor 90 which drives two drums 91 on which are wound cables 92 which pass over pulleys 93 on top of the tower and are attached to the jibcarrying support. In a further embodiment, the tower may be attached to the building being erected by members 96, Fig. 16, whilst the jib is being raised. A removable section, Fig. 18, permits mounting of the jib on the tower and raising it, whilst rollers 95 replace some of shoes 40 which have to be removed to allow the jib to be raised. A motor 31, Fig. 4, moves a carriage 29 along the jib and a motor 34 raises the load. The tower sections may be added or removed by an auxiliary crane 82 which fits on the jib, or, if the jib is not mounted on the tower, by a crane 83, Fig. 5, carried by a hoist 61. To prevent tools &c. being dropped between a hoist and the floor at which unloading is taking place, a plate 84, Fig. 7, mounted on a spindle 85 is urged into a bridging position when the hoist platform is level with the floor. The hoists may be fitted with safety rails for carrying workmen.
Patent GB-1268939-A (GB)
Title: Improvements in fluorine containing alkanolamines
IPC: C07C233/02
Filed: 1969-04-29
Abstract: 1,268,939. Polyfluoroalkyl alkanolamines. UGINE KUHLMANN. 29 April, 1969 [29 April, 1968] No. 21841/69. Addition to 1,218,759. Heading C2C. Novel compounds of the formulae and are prepared by reacting the corresponding polyfluoroalkyl iodide with ethanolamine, N- methylethanolamine or diethanolamine, as appropriate.
Patent GB-920918-A (GB)
Title: Improvements in loading and off-loading equipment
IPC: B66C3/20
Filed: 1961-06-19
Abstract: 920,918. Grab excavators. J. N. MANTEL, and R. MANTEL. June 19, 1961 [Sept. 30, 1960; Jan. 30, 1961], No. 21995/61. Class 68 (1). The boom 5 supporting the grab 8 of the excavator is of such configuration and is so pivotally mounted on the mobile chassis 1 of the excavator that the grab can be swung from a position beyond one side of the chaissis to a position over the chassis and a shoot 11 that extends beyond the other side of the chassis to direct clear of said side material drop from the grab on to the shoot. Linkage 15, 16 between the boom 5 and the arms by which the shoot 11 is pivotally mounted on the chassis ensure of the shoot being positioned beneath the grab when the grab is over the chassis.
Patent GB-166452-A (GB)
Title: Improved manufacture of wrought iron
IPC: C21C3/00
Filed: 1920-07-22
Abstract: 166,452. Wade, H., (Byers Co., A. M.). July 22, 1920. Purifying and refining.-Wrought iron is manufactured by preheating comminuted or granulated steel in a reducing atmosphere to a point below its welding temperature and feeding gradually into a bath of iron-silicate slag which is at or above the welding temperature. As the steel drops through the bath balling takes place assisted either by hand or mechanical puddling, if desired, the ball being then removed from the bath and treated in the ordinary manner.
Patent GB-209003-A (GB)
Title: Improvements in speed controlling devices for railway, tramway and similar trains
IPC: B60T7/12
Filed: 1922-12-11
Abstract: 209,003. Rodolausse, E. Dec. 11, 1922. Addition to 162,617 and 180,698. Track apparatus for stopping trains.-To the apparatus described in the parent Specifications there is added means for changing the lever controlling the speed-supervising pointer from one cam to another according to the nature of the train and the allowable maximum speed. An index pointer 29 movable over a scale 30, which is on two planes necessitating an axial movement to pass over indications above and below about 55 miles per hour, carries a notched disc 43 and a finger 38 which engages a lug 39 on the lever 34. In the dotted line position of the index 29, the finger 38 raises the lever 34 clear of a disc 37 between two cams 33, 36 so that an axial movement from one cam to another is then possible. A plate 42 prevents movement axially until the notch 44 registers with it.
Patent GB-1221976-A (GB)
Title: Paper overlays and laminated materials
IPC: D21H17/51
Filed: 1968-05-09
Abstract: 1,221,976. Laminates. MONSANTO CO. 9 May, 1968 [9 May, 1967], No. 22045/68. Heading B5N. Paper, e.g. for use as the overlay sheet in a laminate is impregnated with an aminoplast resin so that the resin concentration is greater in the surface portions of the sheet material than in the interior thereof, the paper having before impregnation a density of from 0À5 to 0À8 grams per c.c. The aminoplast resin is preferably one formed by the reaction of an aldehyde, e.g. acetaldehyde, butyraldehyde, formaldehyde, crotonic aldehyde, acrolein or furaldehyde, with a resin-forming amino compound, e.g. melamine, substituted melamines, cycloaliphatic guanamines and mixtures thereof. The resin may include thiourea as a curing agent, and may also contain polyhydroxyl containing compounds such as sucrose, ethylene glycol, disaccharides, dextrin, corn syrup, starch hydrolysates, glycerin, sorbitol and diethylene glycol. The resin may also include catalysts such as organic and inorganic acid salts of primary, secondary, and tertiary amines, or inorganic salts of inorganic acids, e.g. ammonium-, magnesium-, or zinc chloride, or mixtures thereof. The resin may also contain silica aerogel powder. The resin may be applied to the paper by immersion, spraying, doctoring, rolling, or brushing. Surplus resin may be removed by scrapers, squeeze rolls or spaced roll bars. The impregnated paper may be partially dried before bonding it to a substrate of plywood, particle board or chipboard. In one example resin impregnated paper is bonded by heat and pressure to panels having hardboard facings and a fir core. The impregnated paper may be decoratively printed and may be covered by a clear overlay sheet or the paper itself may be clear. The laminates produced may be used as panelling or in cabinet work. They are abrasion-resistant.
Patent GB-203684-A (GB)
Title: Improvements in high-speed engines of the slow combustion type
IPC: F02B75/02
Filed: 1923-09-01
Abstract: 203,684. Veyre, G. A. Sept. 5, 1922, [Convention date]. Addition to 187,237, [Class 7(ii), Internal-combustion engines, Arrangement &c. of]. Void [Published under Sect. 91 of the Act]. Generating combustion products under pressure.- In the internalcombustion engine described in the parent Specification in which fuel and water are injected into the combustion chamber of one cylinder where combustion takes place during three strokes with the aid of air delivered from another cylinder, the products being used expansively in the cylinder A during the fourth stroke, two combustion chambers 1, 1<a> are provided for each cylinder, the charges burning in each chamber during seven strokes and being transferred into the cylinder in turn on alternate power-strokes. The delivery and transfer valves such as c<2>, d<1>, e<1> and m<1> may be of lift, rotary, slide or other types. In modified constructions three or more -for example, twelve-combustion chambers may be provided for each cylinder, the charges being burnt therein for a correspondingly longer period and the products delivered therefrom in turn. In a further modification, the products may be delivered to a steam turbine.
Patent GB-1300507-A (GB)
Title: Production of non-caking blends of sodium tripolyphosphate hexahydrate and sodium nitrilotriacetate monohydrate or dihydrate
Inventor: HEYMER GERO
IPC: C11D3/06
Filed: 1971-04-19
Abstract: 1300507 Blend of sodium tripolyphosphate and sodium nitrilotriacetate KNAPSACK AG 19 April 1971 [20 Feb 1970(2)] 22123/71 Addition to 1219749 Heading C5D A non-caking blend of sodium tripolyphosphate hexahydrate and sodium nitrilotriacetate monohydrate or dihydrate is prepared by spraying water or an aqueous solution as hereinafter defined having a temperature of between 0 and 80‹ C., on to anhydrous sodium tripolyphosphate or a blend of anhydrous sodium tripolyphosphate and sodium nitrilotriacetate, which is constantly agitated, the aqueous solution being used in quantities sufficient to provide all the water needed for the formation of the hexahydrate and when an excess proportion of water is used simultaneously flowing a gas and/or air stream over the sprayed material to evaporate the water in excess. The aqueous solution contains (a) a portion of the anhydrous sodium tripolyphosphate, (b) a portion of the anhydrous sodium tripolyphosphate or (c) a portion or the whole of the sodium nitrilotriacetate together with a portion of the anhydrous sodium tripolyphosphate. When water alone is the spray, the blend to be sprayed contains the overall quantity of the anhydrous sodium tripolyphosphate and sodium nitrilotriacetate. Carboxymethyl cellulose may be incorporated as a binder. The blends may contain 20-70% by wt. of sodium nitrilotriacetate.
Patent GB-713248-A (GB)
Title: Improvements relating to multi-colour printing
Inventor: HOGG WILFRED HENRY
IPC: C08L27/06
Filed: 1950-09-09
Abstract: A printing surface has a multi-colour printing layer formed of a plastic composition comprising a synthetic nitrile rubber blended with a polyvinyl compound and a pigment.  The synthetic nitrile rubber may be a copolymer of butadiene and acrylonitrile and the polyvinyl compound may be a polyvinyl chloride, the composition containing 25-60 parts of the synthetic nitrile rubber for every 100 parts by weight of the mixture thereof with polyvinyl chloride.  For every 100 parts by weight of this mixture the plastic composition includes 1-15 parts by weight of a softener, e.g. petroleum jelly or stearic acid, 50-75 parts by weight of pigment and filter, e.g. titanium dioxide or gas black, and barytes, whiting or china clay, and 40-65 parts by weight of a high boiling liquid solvent, e.g. a liquid ketone solvent, which acts as a temporary softener.  In order that the composition may be plastic, the nitrile rubber and polyvinyl compound are blended together to form a composition in which they form separate intimately mixed phases, preferably by mixing latices of the nitrile rubber and of the polyvinyl compound to produce a mixed latex containing the two materials dispersed therein, and then coprecipitating the materials from the mixed latex, e.g. by the addition of an acid or other known coagulant and washing and drying the coagulum.
Patent GB-773754-A (GB)
Title: Improvements in or relating to transistor amplifiers
IPC: H03F3/19
Filed: 1955-08-03
Abstract: 773,754. Transistor amplifier stabilizing circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 3, 1955 [Aug. 6, 1954], No. 22296/55. Class 40(6) In a circuit in which the collector of a transistor 1 is connected over a transformer 3 to the emitter circuit of a transsistor 2 two secondaries 7, 8 in series with a bias stabilizing resistor 9 are employed. The windings 7, 8 are chosen so that no magnetization of the transformer core occurs, the emitter of transistor 2 being connected effectively to winding 7 over capacitor 10 and decoupled from winding 8 by resistor 9. Both transistors may be fed from a common supply (Fig. 2, not shown) the first transistor being stabilized by an emitter resistor. In a modification, Fig. 3, the stabilizing resistor 9<SP>1</SP> is con nected directly to 'the supply and the windings 7<SP>1</SP>, 8<SP>1</SP> interchanged. The stabilizing resistance may be provided by the collector impedance of transistor 1, Fig. 4, the emitter bias of which is stabilized by resistor-capacitor 15, 16. A NPN transitor may be employed, (Fig. 5, not shown), in the second stage. The resistance 9 may be provided by the resistance of the secondary 8 of the transformer.
Patent GB-779568-A (GB)
Title: Improvements in or relating to storage receptacles for bulk materials
IPC: B65G65/42
Filed: 1955-08-03
Abstract: 779,568. Hopper discharge. FOSTER WHEELER, Ltd. Aug. 3, 1955 [Aug. 3, 1954], No. 22307/55. Classes 78 (1) and 78 (4). Material from hopper 10 is discharged through outlet 24<SP>1</SP> by endless chain conveyer 47 carried by frame 67 pivoted to beam 34, the conveyer being adjusted in inclination relative to fixed floor 15 by hydraulic piston 78 to vary the rate of feed. As shown, shorter endless chain conveyer 48 is provided at the discharge end to assist the discharge and is adjustable by piston 78, being mounted at 65 to frame 67. Vertical chains 72 act as stirrer. The pivoted gates 24, 86 are adjustable by screw jacks 87,88.