baber/WOPTO huggingface dataset:
Patent GB-919052-A (GB)
Title: Improvements in or relating to the manufacture of sintered metallic bodies
Inventor: JACKSON KENNETH
IPC: C22C1/10
Filed: 1960-09-28
Abstract: A sintered metallic body consisting of a matrix metal such as Ni, Fe, Co, W, Mo, Pb, Ag or their alloys, and not more than 2% of a dispersed refractory oxide such as Al2O3, SiO2, MgO and BeO is formed by coprecipitating from a mixed solution of a soluble compound of the matrix metal and a soluble compound of a metal which forms the refractory oxide, a mixture of the matrix metal oxide and the refractory oxide and/or compounds which form the oxides on heating, heating to decompose said compounds and then heating the oxides in a reducing atmosphere to form a powder mixture of the matrix metal and the refractory oxide which is then pressed and sintered.  Aqueous solutions such as nitrates of the matrix metal and the refractory metal oxide are used and precipitation of hydroxides, carbonates, oxalates or decomposable basic salts is effected by the addition of aqueous solutions of alkali metal or ammonium hydroxides, carbonates, oxalates or oxalic acid.  Alternatively, precipitation is effected by boiling the mixed solution.  The precipitate formed is dried, heated to 500 DEG  C. in air, crushed to minus 200 mesh, reduced in hydrogen to form a mixture of matrix metal and refractory oxide which is then compacted at 10-50 t.s.i. and sintered below the melting temperature of the matrix metal in vacuum, hydrogen or nitrogen.  The sintered compact may be coined and resintered and cold rolled, annealed and drawn into wire.  Specification 919,051 is referred to.
Patent GB-188562-A (GB)
Title: Improved process for permanently embossing cloth made of animal fibre
IPC: D06Q1/08
Filed: 1921-12-12
Abstract: 188,562. Funasaka, H. Dec. 12, 1921. Embossing.-Cloth made from animal fibre is treated with a solution of a sulphocyanate prior to embossing it under heat and pressure. It is stated that when the cloth so treated is pressed with a heated embossing-calender, the fibre of the cloth curls and a permanent embossed design is obtained. Potassium sulphocyanate is preferably used, and a sheet of cotton cloth or waterproofed paper is preferably interposed between the cloth and the calender to prevent corrosion of the latter.
Patent GB-1236125-A (GB)
Title: A device for forming a layer of gaseous fluid on a surface
IPC: B60V3/04
Filed: 1969-07-02
Abstract: 1,236,125. Air-cushion conveyers. BATTELLE MEMORIAL INSTITUTE. 2 July, 1969 [3 July, 1968], No. 33392/69. Heading B8A. [Also in Division F2] A device for providing an air cushion on a surface for supporting a load comprises, adjacent each opening 5 in the surface, a chamber 1 provided with a flexible, elastic membrane 6 which permits the flow of air from an inlet 4 to the opening 5 when a load is located over the opening 5. The membrane 6 is anchored at its periphery in an annular groove la and is formed near its periphery with ports 7. The arrangement is such that, in the absence of a load over the opening 5, the speed of the air flow in the space 8 above the membrane is greater than that below the membrane, whereby the membrane is deformed to lie against the concave surface 2a at the top of the chamber 1, thereby closing the ports 7 and the opening 5. The portion of the membrane opposite the opening 5 is provided with a porous portion, Fig. 2 (not shown), to permit a small air leakage to the opening 5 when the ports 7 are closed. When a load comes to lie over the opening 5, the air leakage through the membrane increases the pressure in the opening 5 to that in the chamber 1 beneath the membrane, whereupon the elastic restoring force in the membrane causes it to resume its full-line position, thereby permitting air flow through the ports 7. In the embodiment shown in Fig. 4, the top wall 14 of a chamber 11 is formed with openings 15 and a membrane 16, formed with ports 19 and perforations 20, is mounted within the chamber adjacent the wall 14. As in the previous embodiment, the membrane will substantially close the openings 15 which are not covered by a load 0. In a modification, Fig. 5 (not shown), the load is conveyed over the upper surface of the chamber by means of an endless belt supported on the air cushion. As shown in Fig. 6, an air cushion bearing comprises a hollow, cylindrical casing 22 formed with openings 26 and provided with an elastic tubular membrane 27 having ports 19 and perforations 20. A ring 23 is supported by the air cushion provided by the casing for rotary and axial movement.
Patent GB-400001-A (GB)
Title: Process for producing a hardened surface on rubber goods
IPC: C08L7/00
Filed: 1932-11-25
Abstract: A hardened surface is produced on rubber by applying a layer of caoutchouc containing an oxidizable oil thereto before vulcanization. A suitable mix consists of 40 parts of caoutchouc, 1 part of sulphur and accelerator, 20 parts of stand oil, and 39 parts of fillers.
Patent GB-1237359-A (GB)
Title: Braking force control valve
IPC: B60T8/18
Filed: 1969-07-02
Abstract: 1,237,359. Brake control valves. ALFRED TEVES G.m.b.H. 2 July, 1969 [11 July, 1968], No. 33439/69. Heading F2V. A braking force control valve for use in a pressure medium duct 24 leading from a master cylinder to wheel-brake cylinders 34 of a motor vehicle, comprises a stepped piston 7 containing a valve-closing body 38, arranged in a pressure medium passage acted upon by a valve spring 41 urging it in the closing direction, and openable by an abutment when the stepped piston abuts against a housing wall, an annular step 39 of the stepped piston being acted upon by the master cylinder pressure, an end face of a large step of the piston being acted upon by the wheel-brake cylinder pressure, a control piston 9 urged away from the stepped piston against a shoulder 8 in the housing 4, and a pressure medium inlet 5 connected between the housing shoulder 8 and the control piston 9, the pressure in the pressure medium inlet varying in accordance with the load on the vehicle axle. As shown, the control valve is connected to a duct 31 between a sprung strut 33 and a level control valve 26 supplied with pressure medium from storage means 27 connected by a pump 28 driven by the vehicle engine 29. The control piston 9 has an extension 14 carrying a spring plate 15 forming an adjustable abutment for springs 1, 2. Upon actuation of the master cylinder 25, pressure medium passes via inlet 6 to wheel cylinders 34, the valve 38 being open; an increase of braking pressure causes the piston 7 to move to the right, allowing the valve 38 to move to a closing position, and against the piston 9 which acts on the piston 7 with a force corresponding to the pressure in the strut 33 whereby the braking force distribution is automatically caused to be dependent upon the loading condition of the vehicle.
Patent GB-1171043-A (GB)
Title: Tobacco Incorporating Encapsulated Flavouring Material.
IPC: A24B15/28
Filed: 1968-07-15
Abstract: 1,171,043. Treating tobacco. NATIONAL CASH REGISTER CO. 15 July, 1968 [15 Aug., 1967], No. 33567/68. Heading A2C. [Also in Division B8] Aromatic substances, contained as a liquid inclusion within the walls of heatrupturable minute capsules having a maximum diameter of 40 microns, are incorporated in tobacco. Suitable aromatic substances are menthol menthone, lime, lemon, peach, pineapple, cherry, spearmint, peppermint and kola, in the form of natural oils or as minute particles suspended in an inert oil. The capsule walls may be made of a gelatin-gum arabic complex, gelatincarrageenan complexes, phased out succinylated gelatine, or ethyl cellulose. The capsules may be included in a binder and sprayed on tobacco leaves or on reconstituted tobacco sheet, or incorporated into the latter during its manufacture. Cigars and cigarettes may be made from the capsule-containing tobacco fillers alone or blended with other tobaccos. The manufacture of the capsules is also described (see Division B8).
Patent GB-413194-A (GB)
Title: An improvement in tea pots and the like
IPC: A47G19/14
Filed: 1933-11-30
Abstract: 413,194. Teapot &c. lids. SILVA, J. DE, 60, Victoria Street, and CHUBB, W. J., 43, Woodward Road, both in Auckland, New Zealand. Nov. 30, 1933, No. 33633. Convention date, Dec. 13, 1932. [Classes 66 and 125 (iii).] To enable the hinged lid of a teapot &c. to continue to be a good fit in the seating 7, a hollow body consisting of a conical wall portion and a dished base 4<a> capable of being flexed is attached to the underside. When the lid requires tightening the wall portion is expanded by screwing up the nut 6 on the bolt 5 so causing flattening of the base 4<a>.
Patent GB-755495-A (GB)
Title: A process of and apparatus for carrying out nuclear reactions
IPC: G21C1/22
Filed: 1954-11-22
Abstract: 755,495. Nuclear reactors. STICHTING VOOR FUNDAMENTEEL ONDERZOEK DER MATERIE. Nov. 22, 1954 [Nov. 25, 1953], No. 33764/54. Class 39 (4). Fissile material in suspension or solution is made to flow through a reactor 1 and heat exchanger 2 by gas injected from a pipe 4 and removed in a separator 6. H 2  and D 2  produced by radiation are catalytically oxidized at 8 and returned from 9 to the separator 6, if the carrier liquid is aqueous. Gaseous fission products are carried over with the injected gas and removed at 10 and other fission products are removed at 11. The gas injected may be air, O 2 , He, CO, CO 2  or N 2 . The fissile material may be dissolved in H 2 O or D 2 O or suspended in water or a liquid metal.
Patent GB-1129410-A (GB)
Title: Improvements in or relating to fluid flow machines
IPC: F01D9/04
Filed: 1966-07-28
Abstract: 1,129,410. Turbine inlet nozzle structure. GENERAL ELECTRIC CO. July 28, 1966 [Dec. 6, 1965], No.33881/66. Heading F1T. In a fluid flow machine such as a gas turbine, a stator blade assembly comprises an outer shroud ring and an inner shroud ring there being a plurality of radially-extending guide vanes disposed between the shroud rings and secured thereto. At least one of the shroud rings is comprised of at least two segments, the separation between each pair of adjacent segments following in part along a line at which the pressure between the shroud rings during operation of the machine is substantially equal to the pressure on the opposite side of the segmented shroud ring, the line extending at least a substantial portion of the axial distance between the leading and trailing edges of the guide vanes. In the gas turbine shown the inlet guide vane assembly comprises an inner shroud ring 27 and an outer shroud ring 26 between which extend guide vanes 28 and which are secured thereto. The inner shroud ring is formed with a radiallyextending flange 32 which is secured by bolts 43 to a frusto-conical support ring 40 which is in turn secured to an inner wall 17. The outer shroud ring 26 is likewise formed with a radially-extending flange 31 which abuts against a flange 46 projecting radially inwardly from the outer casing section 12. The inner and outer shroud rings 27, 26 are formed of arcuate segments as shown in Fig. 3, the shroud ring segments and associated guide vanes forming segmental assemblies 25. The holes in the flange 32 by which the assembly is secured to the support ring 40 are shown at 33, 34, 35. The form of the division between adjacent shroud ring segments is indicated in Fig. 4, the inner shroud ring 27 and integral flange 32 together with associated guide vanes 28 being shown. The division C extends between a point 1 at the convex side of one guide vane and adjacent the downstream side of the flange 32 and passes through a point 2 adjacent the trailing edge 30 of the adjacent guide vane. The division also extends from the point 1 through a point 3 which is the mid point between the leading edges 29 of the guide vanes.
Patent GB-1364598-A (GB)
Title: Data record merging apparatus
IPC: G06F7/32
Filed: 1972-07-20
Abstract: 1364598 Merging records INTERNATIONAL BUSINESS MACHINES CORP 20 July 1972 [29 July 1971] 33911/72 Heading G4M Records stored in two storage devices, e.g. magnetic tapes, are compared in pairs to determine the required sequence, the records from one of the devices being initially re-recorded in their required sequence but interspersed with indicators where records from the other device are to be inserted, and the indicators are subsequently replaced by records from the second device to complete the merging operation. In the embodiment described, storage 40 of a data processing system contains areas for a control record 41 which determines which bytes of the records are to be selected to control the merging process, single record buffers 42, 43 for respective input tape units, fields 44, 45 for the bytes to be compared from the records in buffers 42, 43 and control bits 46 for indicating the results of comparing successive records from the two tape units. In the first phase the first records on tapes 1 and 2 are read into buffers 42, 43, their compare fields 44, 45 are extracted and compared, and if the tape 1 record compares low the first control bit 46 is set to 1, the next record on tape 1 is entered in buffer 42 and its field 44 is extracted, whereas if the tape 2 record compares low or equal, the control bit 46 is set to 0, the next record on tape 2 is entered in buffer 43 and its field 45 extracted. Comparison of fields 44, 45 for pairs of records continues in like manner with the corresponding control bit being set to 0 or 1 until the end of one of the tapes is detected, whereupon the field 44 or 45 for that tape is set to a value which forces a low comparison so that the remaining control bits are set to the corresponding value for that comparison. In the second phase, tape 2 is replaced by a blank tape 3 and the control bits 46 determine whether a record from tape 1 or an all-zero record is recorded on tape 3. In the final phase, tape 1 is replaced by tape 2 and each all-zero record on tape 3 is replaced by a record from tape 2.
Patent GB-899693-A (GB)
Title: Purification of hexafluoropropylene
IPC: C07C17/38
Filed: 1960-10-05
Abstract: Hexafluoropropylene containing perfluorobutyne-2, such as may be obtained by pyrolysis of chlorodifluoromethane and fractionation, is purified from said perfluorobutyne-2 by either (i) mixing the gaseous mixture of hexafluoropropylene and perfluorobutyne with gaseous ammonia and liquefying the resulting mixture, or (ii) contacting the gaseous mixture of hexafluoropropylene and perfluorobutyne with aqueous ammonia.  In method (i): suitable temperatures are from -40 DEG C. to +50 DEG C.; the hexafluoropropylene may be recovered by vapourizing the liquid mixture; and the recovered hexafluoropropylene may be scrubbed with water to remove perfluorobutyne-ammonia reaction products. In method (ii), suitable temperatures are from 0 DEG C. to 50 DEG C. and a noble metal or copper may be present.  In either method an amount of ammonia at least stoichiometrically equivalent to the perfluorobutyne present is used and preferably 0.01-1.5 weight per cent or 0.1 to 1.2 mol per cent of ammonia based on hexafluoropropylene.  Specification 581,405 is referred to.
Patent GB-1155269-A (GB)
Title: Extrusion Nozzles.
Inventor: SYLVESTER PETER THOMAS
IPC: B29C48/475
Filed: 1965-08-10
Abstract: 1,155,269. Extrusion nozzles. COAL INDUSTRY (PATENTS) Ltd. 10 Aug., 1966 [10 Aug., 1965], No. 34138/65. Heading B5A. An extrusion nozzle comprising a die block 1 and tube 2 through which material is extruded by a ram 6 is provided with a liner 4 which runs the length of the nozzle and is removably attached to the upstream end of the block 1 by means of a collar 13. As shown, tube 2 comprises parts 7, 8 and liner 4 is split as at 14 so that part 7 may be moved transversely to the axis of the nozzle by an hydraulic jack 9 coupled to a frame 10 to vary the moulding pressure. Tube parts 7, 8 are coupled to die block 1 as shown in Fig. 2 (not reproduced) and are relieved as at (5d) to permit pivoting. In a modification, Fig. 3 (not shown), liner 4 is held witnin die block 1 by wedges (16) having serrations (17), and a collar (15) may also be provided welded to the liner. Die block 1 and tube 2 may be provided with cooling conduits 11. The nozzle is particularly intended for use with an extrusion machine which forms briquettes from hot, partly devolatilized, coal.
Patent GB-737441-A (GB)
Title: Improvements in or relating to contact strain gauges
IPC: G01B7/16
Filed: 1953-12-08
Abstract: 737,441. Electric strain gauges. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES. Dec. 8, 1953 [Jan. 22, 1953], No. 34183/53. Class 40 (1).  A strain-gauge attached to the surface of a member subjected to stress and strain comprises a series of contact wires having a number of open and closed contacts whose conditions are changed in sequence with the application of a stress or strain, whereby a series of resistors also attached to the surface of the member are progressively added or removed from an external D.C. circuit, so that the reading of an ammeter in the circuit indicates the stress or strain in the member. A group of wires 2, 4, 6, 8 (Fig. 1) including normally closed contacts 9, 10, 11, 12 and a group of wires 3, 5, 7 including normally open contacts 13, 14, 15 have resistance wires 16-20 connected across each contact as shown in Fig. 5, in a circuit containing a battery 35 and meter 36 and temperature-sensitive limiting resistors 23, 24. With application of a tensile stress the contacts 12, 11, 10, 9 open successively in that order to produce corresponding reductions in the current through meter 36 ; with application of compressive stress the contacts 13, 14, 15 close successively in that order to produce corresponding increases in the current through meter 36. The wires and the resistances may be attached to the surface by embedding them in a varnish layer, and the contact points may be protected from corrosion by a layer of paper or tape or by being enclosed in an inert atmosphere. In one arrangement a thin metal layer is deposited on a layer of conductive powder and the discontinuities are cracks produced by prestressing.
Patent GB-1299418-A (GB)
Title: Web winding machines
Inventor: SIMONET JEAN-CLAUDE PIERRE LEO
IPC: H01G13/02
Filed: 1971-07-22
Abstract: 1299418 Capacitors INTERNATIONAL STANDARD ELECTRIC CORP 22 July 1971 [23 July 1970] 34442/71 Heading H1M A capacitor winding machine has control apparatus for winding electrode and dielectric strip material on to a spindle and performing an operation on the composite strip within a predetermined position of the length thereof, a cam rotatable with the spindle also controlling the operation so that it may be performed by the control apparatus only at a preset angular position of the spindle. The operation may be the insertion of one of a plurality of leads into an electrolytic capacitor roll as it is being wound and welding it to an electrode, the capacitor comprising a single cathode foil and a plurality of consecutive anode foils, and the leads for the individual electrodes being required to be spaced apart angularly in the completed roll (Fig. 2, not shown). As shown, cathode foil 17 sandwiched between paper or like porous strip material is fed to spindle 13, as is anode foil 7, guillotine 10, 11 severing foil 7 into consecutive strips. Spindle 13 is driven by motor 29 through pulleys 27, 27<SP>1</SP> and clutch 28. Control apparatus 6 may comprise an endless programmed tape with indexing marks corresponding to commencement and stopping of winding. Shaft 16 is connectable to spindle 13 through clutch 24 and carries cams 161, 162, 163, 164, the angular position of each of which relative to reference cam 160 determines the relative angular position of a lead in the roll. At the beginning of the winding shaft 16 is positioned so that reference cam 160 actuates its contacts to close clutch 24 so that the shaft winds in synchronism with spindle 13, but the cam contacts are overridden until the portion of anode foil in which it is desired to insert and secure a lead has been reached, as indicated by control apparatus 6. The spindle then continues to rotate until first cam 161 actuates its contacts disengaging clutch 28 to stop the winding and permit a lead to be inserted and welded. At the same time clutch 24 is disengaged. The anode foil is severed and winding is recommenced, a space being left between the severed ends. When the passage of the attached lead is detected by photoelectric device 25, clutch 24 is automatically re-engaged for cam 162 to determine the location of the second lead.
Patent GB-172221-A (GB)
Title: An improved method and apparatus for treating, cleaning, or preparing sand for casting moulds
IPC: B22C5/18
Filed: 1920-12-06
Abstract: 172,221. Lake, W. B. Dec. 6,1920. Treating mould and core materials.-Used sand, particularly facing sand for steel castings, mixed with a small quantity of fresh sand is sifted from a dryer a to a pipe g along which it is blown by compressed air, the friction between the particles serving to detach the silica from the lighter matter, which is blown past baffles k and passes to a settling-chamber n. The silica checked by the baffles falls down into buckets q, which serve to measure it and pass it into a mill r, where the requisite quantity of clay and water are added.
Patent GB-1387000-A (GB)
Title: Carpet securing device
IPC: A47G27/04
Filed: 1972-07-24
Abstract: 1387000 Securing carpets T H JONES 21 May 1973 [24 July 1972] 34503/72 Headings A4S and A4U A carpet securing device comprises an elongated extruded aluminium strip 1 having a portion 2 with apertures 3 for securing it to a horizontal surface by pins, nails or staples 4 and an arm 7 which is deformable to compress a carpet 12 between the arm and a vertical surface. The horizontal surface may be a floor and the vertical surface a wall or skirting board. The carpet has an underlay 11. In a second embodiment, Fig.4 (not shown), two adjacent carpet securing devices are used to secure adjacent portions of carpet by compressing edge portions of the carpets together. In a third embodiment, Fig.5 (not shown), a carpet securing device is secured to a stair tread and is used to compress a stair carpet between the device and a stair riser. The apertures may be formed by driving fixing pins through the strip.
Patent GB-630837-A (GB)
Title: Improvements in clamping devices for tennis rackets
IPC: A63B60/44
Filed: 1947-12-30
Abstract: 630,837. Racket presses. WIFRA-SPORT N. V. Dec. 30, 1947, No. 34558. Convention date, June 7, 1941. [Class 132 (ii)] In a tennis racket press comprising two frames 1 embracing the racket held together by a flexible strand or strands 6, 7 anchored to one frame and passing through holes 3 in the other, the press is clamped by moving a slide 8 along two oppositely disposed relatively inclined parts of the strands 6, 7 to tension them, the slide being selfretaining or otherwise held in place. As shown in Fig. 2, the slide 8 is formed with eyelets 10 and notches 11, 12 through which the strands 6, 7 pass forming bight which makes the slide self-retaining in position. As shown in Fig. 4 the strands 15, 16 are crossed, the slide 20 runs on guides 27, 28 and is held in place by tongues 21, 22 engaging racks 23, 24 in the frame. Two slides 20 may be used one on each side of the cross over of the strands 15, 16. In a modified form the slide carries a projecting cross bar which lies in grooves in the frame. In modifications, the slide may be clamped by forcing wedgeshaped parts into the holes in the slide through which the strands pass or the slide may be moved by levers pivoted on the frame or it may be moved by a screw attached to the frame. In this last modification, if two slides are used they may be moved by left- and right-handed threads on a common shaft.