baber/WOPTO huggingface dataset:
Patent GB-1428091-A (GB)
Title: Gas turbine ducted fan engine mounting
IPC: B64D27/16
Filed: 1974-01-14
Abstract: 1428091 Gas turbine ducted fan enginesmounting AVCO CORP 14 Jan 1974 [26 Feb 1973] 01598/74 Headings FIG and F1J The invention relates to a gas turbine ducted fan engine which comprises a mounting ring structure formed with mounting pads at spaced locations around the periphery thereof. The engine shown comprises a fan rotor 20 carrying fan blades 18 and compressor blades 28, a compressor 36, combustion equipment 50, an HP turbine 54 which drives the compressor 36 through shaft 56, and an LP turbine 58 which drives the fan rotor 20 through an inner shaft 60. The shaft 60 is formed at its forward end with splines 66, which engage splines 68 of the shaft of a gear 70, the gear 70 engaging intermediate pinions 74 which in turn engage an internal ring gear 76 mounted on the shaft 22 of the fan rotor 20, the gear assembly constituting a reduction gear. The mounting ring structure 90 comprises an outer ring 92, an intermediate ring 94, and an inner ring 96, the outer ring and intermediate ring defining part of the annular flow duct 24 through which air is discharged from the ducted fan 18. The casing 38 of the core engine is releasably secured to the rearward end 95 of the inner ring 96, by means of bolts not shown. A number of struts extend between the outer ring 92 and intermediate ring 94, the struts 102 being disposed in pairs, the struts of each pair converging radially outwardly to terminate at the sides 106 of a mounting pad 98; the struts are disposed tangentially to the inner ring 96; the struts are hollow as indicated at 108. There are four mounting pads 98 and four pairs of struts 102, the pads being disposed symmetrically of the vertical plane through the engine. There are four other struts 110, 112, the struts 110 being in the vertical plane and struts 112 in the horizontal plane, the struts all being hollow, the lower vertical strut 110 being utilized for passage of an accessory drive-shaft 88. The inner ring 96 is connected to the intermediate ring 94 by means of a web 118; a plurality of ribs 120 are integral with and inter-connect the web 118, the intermediate ring 94 and a rearward flange 116; the ribs 120 form extensions of the side walls of the struts 102; adjacent ribs 120 are inter-connected through a member 122 which is formed with an opening 124 in line with the hollow passage 114. An assembly comprising an inner ring 44, an outer ring 46 and struts 48 is secured to the forward face of the engine housing 38. The fan turbine shaft 60 is secured to the shaft 70 of the reduction gear by means of a bolt member 72. Thus by removing the bolt 72 which is accessible from the rear end of the engine, also the accessory drive-shaft 88, and by removing the securing bolts between engine housing 38 and mounting inner ring 96, the core engine module may be removed.
Patent GB-737192-A (GB)
Title: Improvements in and relating to the hydraulic transport of solids
IPC: B65G53/30
Filed: 1953-01-22
Abstract: 737,192. Transmitting solids in a liquid stream. THOMPSON INDUSTRIAL CONSTRUCTIONS, Ltd., J., [formerly B.V.C. INDUSTRIAL CONSTRUCTIONS, Ltd.], and BULLOCH, W. Dec. 18, 1953 [Jan. 22, 1953], No. 1904/53. Class 102 (2). [Also in Group XXX] Apparatus for transmitting solids in a liquid stream comprises hoppers 1, 2, to which the solids are conveyed alternately by a conveyer system (see Group XXX), and which are connected by valves 7 to intermediate vessels 5, 6 which are in turn connected by valves 17 to a secondary pressure vessel 16. The system is filled with water through valves 38, 39 and a weir 41 is provided for escape of excess water. The valves 7, 17 are actuated cyclically by hydraulic rams 12 so that the solids are fed alternately from the hoppers 1, 2 into the vessels 5, 6 and finally into the vessel 16 which is fitted with a screw conveyer 19 for forcing the solids into the transporting pipe 33. The spindle 20 of the conveyer is hollow and supplied with water through the inlet 30 and slots 29 so that the water passes to the throat 32 ; in addition a ring of orifices 35 is also provided to inject water into the throat. More than one screw conveyer may be provided in the base of the vessel 16.
Patent GB-1253294-A (GB)
Title: Improvements relating to polycrystalline films
IPC: C23C16/44
Filed: 1969-01-13
Abstract: 1,253,294. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 13 Jan., 1969 [15 Jan., 1968], No. 1925/69. Heading H1K. [Also in Division C7] A polycrystalline semi-conductor film such as Si is pyrolytically deposited on an electrically insulating surface of a semi-conductor substrate which is maintained at 550-1100 C. and then a conductivity determining impurity is diffused into the film. The substrate may be Si with a surface insulating layer of SiO 2 , Al 2 O 3  or Si 3 N 4  and Si is deposited from SiH 4  which may also be mixed With B 2 H 6 , AsH 3  or PH 3  to form a doped Si layer. The layer thickness is preferably 0À1-3 microns and the Si deposition rate is preferably 0À15-5 microns/min. A mask of SiO 2  is then formed on the layer either by oxidation or pyrolysis and etched windows are formed in the SiO 2 . A dopant of opposite conductivity is then diffused into the windows to form PN junctions and by etching techniques isolated insulated islands of PN junctions are formed. Contacts are formed by deposition of Al.
Patent GB-685811-A (GB)
Title: Shaft coupling for coupling shafts rotating at high speeds
IPC: F16D3/18
Filed: 1951-01-26
Abstract: 685,811. Universal joints. ESCHER WYSS AKT.-GES. Jan. 26,1951 [Jan. 30, 1950], No. 2056/51. Class 80 (ii). A shaft coupling comprising externally toothed male members 3, 4 keyed to the shaft ends 1, 2 and a two part female coupling member 7, 8 with internal teeth is characterised in that a solid centring disc 9 is disposed between the opposing faces of the parts 7, 8 the disc having, one on each side near its periphery, annular shoulders 10, 11 against which the opposing ends of the parts 7, 8 bear. The disc prevents radial deformation of the facing ends of the female coupling members. Detachable end covers 14, 15 are provided.
Patent GB-575780-A (GB)
Title: Submerged resistor type induction furnace for melting metals
IPC: H05B6/20
Filed: 1944-02-04
Abstract: 575,780. Electric induction furnaces. TAMA, M, and TAMA, M. Feb. 4, 1944, No. 2066. Convention date, July 1, 1943. [Class 39 (iii)] In an induction furnace compris:ng primary coils, 8 wound on iron cores 10 closed externally of the furnace for melting light metals forming secondary loops beneath a hearth holding the bulk of the metal, the secondary loops 4-7 form a plurality of melting channels opening into the hearth 2, and refractory non-conducting baffle plates 14 are placed in the bottom section of the hearth above the channel openings to dampen the upward stream of molten metal and deflect it laterally into the hearth, to maintain a substantially uniform current density through the secondary loop and to decrease the cross section of that portion of the loop located directly above the channel openings, whereby the current density is increased therein. The baffle plates 14 may be of zirconium silicate, are denser than the molten metal, rest loosely in steps 16 on the hearth and may have apertures for passage of metal. A door at the bottom of the melting channels allows removal of slag when the furnace is not in use. Cooling air may be blown over the primary assembly. Specification 571,304 is referred to.
Patent GB-546059-A (GB)
Title: Improvements in flotation processes
IPC: B03D1/01
Filed: 1941-02-17
Abstract: 546,059. Concentrating ores. AMERICAN CYNAMIDE CO. Feb. 17, 1941, No. 2150. Convention date, March 20, 1940. [Class 82 (ii)] Siliceous gangue is separated from slimy ores, such as slimy phosphate ores, by subjecting a substantially completely deslimed pulp of the ore, i.e. one containing less than 1 per cent. of the slimes and preferabley not more than 0.5 per per cent., to froth flotation in the presence of a cation active flotation collector for the siliceous matter. The collector may be an aliphatic amine such as lauryl amine hydrochloride or a quaternary ammonium compound such as cetyl trimethyl ammonium bromide. Other examples of suitable collectors are set out in U.S.A. Specifications 2,132,902 and 2,168,849.
Patent GB-1518371-A (GB)
Title: Process
IPC: C09J7/38
Filed: 1977-01-17
Abstract: 1518371 Laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 17 Jan 1977 [20 Jan 1976] 02169/76 Heading B5N A process for the production of a laminate consisting of a release paper laminated to a pressure sensitive adhesive film supported on a sheet material comprises applying to a paper an organopolysiloxane composition containing at least two organopolysiloxanes, one of which contains silicon-bonded hydrogen and one other of which contains silicon-bonded hydroxyl, vinyl or allyl groups, and an organoplatinum complex catalyst, curing said composition to an adhesive film and applying thereto, either separately or together, a pressure sensitive adhesive film and a supporting sheet therefor, the said adhesive having incorporated therein a small proportion of an organic compound containing one or more elements selected from trico-valent nitrogen, phosphorus, arsenic and antimony, and di-co-valent sulphur, selenium and tellurium. Examples of suitable organic compounds are ethanolamine, N-methyl-ethanolamine, N,N-dimethylethanolamine, triethanolamine, diethylamine, triethylamine, tetramethylenediamine, cyclohexylamine and dimethylformamide. The pressure-sensitive adhesive may contain natural rubber, copolymers of butadiene with styrene or acrylonitrile, polychloroprene, polyisobutylene, polyisoprene, polyacrylates or polyvinyl ethers, plus petroleum oil or resin esters as plasticizer and terpene resins, petroleum resins or resin esters as tackifiers, all dissolved in a solvent; or it may be a hot-melt adhesive comprising ethylene-vinyl acetate copolymer or styrene-isoprene block copolymer. The sheet material may be paper.
Patent GB-1260586-A (GB)
Title: Hydraulic high pressure forging apparatus
IPC: B21J9/12
Filed: 1969-01-14
Abstract: 1,260,586. Forging. TOKYU SHARYO SEIZO K.K. 14 Jan., 1969 [30 Jan., 1968; 31 Jan., 1968; 15 March, 1968], No. 2223/69. Heading B3H. A high-pressure forging apparatus comprises a set of die segments, Figs. 7-12, arranged around a central die cavity and an hydraulic chamber into which a plunger is movable to generate hydraulic pressure which is transmitted through the hydraulic fluid to at least some of the die segments to move them simultaneously. The plunger 3, Fig. 1, may seal the chamber or close the chamber at the end of its stroke, Figs. 3 and 5. The plunger is driven by compressed air. The separation of the die segments may be adjustable by hydraulic positioning mechanism 16, Fig. 1, or by hydraulically operated toggle mechanism, Fig. 2 (not shown). The adjusting mechanism is shown for illustration with a two die arrangement which is used to describe the pressuregenerating method. The hydraulic liquid may be water or glycerine. An air punch may be used to give impact to the hammer. In one embodiment of the invention, Fig. 7, the die segments are arranged to enclose a die cavity 43 and are moved by a high pressure impulse transmitted from a common impact hydraulic pressure generator. Four die segments 42 surround the cavity on a horizontal plane and a fifth die segment 44 is moved between the die segments 42 by the hydraulic pressure impulse to abut a base block (46), Fig. 8 (not shown). In a similar embodiment, Fig. 9, the bottom die segment 53 co-operates with four side die segments 80 and an upper die segment 60. The die segment 53 is held in position by wedges 57. This apparatus may be used with only one opposed pair of die segments operative. The side die segments may be three, five or more to forge polygonal prism shapes. In a final embodiment, Figs. 11 and 12 (not shown), the side die segments serve merely for defining a closed die cavity 62. The upper die segment 60 produces the high forging pressure and an exhaust port (75) communicates with the cavity. A workpiece surrounded by semisolid pressure medium is placed on the lower die segment (53). The medium may be a mixture of grease and graphite or talc. The hydraulic pressure is simultaneously applied to the upper and side die segments whereby the pressure medium flows and fills the cavity. Part of the medium flows out of the exhaust port (75) and the remainder is pressurized in the cavity. Using the above method with the pressure medium such materials as stainless steel can be forged. The workpiece may be shaped into elements for a watch band.
Patent GB-589385-A (GB)
Title: A process for improving the properties of metal castings made by the centrifugal method
IPC: B22D13/00
Filed: 1944-02-07
Abstract: The properties of centrifugally cast carbon or alloy steels, e.g., carbon chromium steels, 7 per cent. chromium tungsten steels, austenitic rustless steels, and 3 per cent. chromium molybdenum steels, are improved by subjecting the metal while hot to mechanical work to effect changes in dimensions in no case greater than 60 per cent.  The working should be effected at a temperature 50 to 100 DEG C. below the normal forging temperature of the metal treated and may comprise expanding, upsetting or drawing.  The casting may be roughly machined before working. Examples are given of the effect of the process when applied to alloy steels containing : I carbon 0.4, silicon 1.71, manganese 0.79, chromium 20.6, nickel 8.3, and tungsten 3.81 per cent.; II, carbon 0.11, silicon 1.29 manganese 0.3, chromium 18.3, nickel 8.88, and molybdenum 2.98 per cent.; III, carbon 0.3, silicon 1.29, manganese 0.40, chromium 14.14, nickel 12.52, and tungsten 2.70 per cent.; or IV, carbon 0.35, silicon 0.29, manganese 0.85, sulphur, 0.025, phosphorus 0.025, chromium 3.4, nickel 0.19, molybdenum 0.62. and vanadium 0.17 per cent.  Examples are also given of the effect on the physical properties of eight alloy steels of various heat treatments and degrees of hot working.  The analyses are as follows :  <TABS:0589385/II/1> Each steel was cast, heated to 1,000 DEG  or 1,200 DEG  and A.C., i.e. air cooled to room temperature.  No. 1 steel was then heated to 860 DEG , O.H., i.e., cooled in oil, heated to 610 DEG , A.C., forged to alter a dimension 60 per cent. at, or merely heated to, 1,000 DEG  or 1,200 DEG , A.C., heated to 860 DEG , O.H. and heated to 610 DEG , A.C.  No. 2 steel was heated to 850 DEG , S.C., i.e., cooled slowly, heated to or forged at 1,000 DEG  or 1,200 DEG , A.C., and heated to 850 DEG  S.C. No. 3 steel was heated to 950 DEG , A.C., then to 750 DEG , A.C., heated to or forged at 1,000 DEG  or 1,200 DEG  A.C., heated to 950 DEG , A.C., and then to 750 DEG , A.C.  No. 4 steel was heated to 850 DEG , S.C., heated to or forged at 1,000 DEG  or 1,200 DEG , A.C., and heated to 850 DEG , A.C.  No. 5 steel was heated to 860  DEG , O.H., heated to 670 DEG , A.C., heated to or forged at 1,000 DEG  or 1,200 DEG , A.C., heated to 860 DEG , O.H., and heated to 670 DEG , A.C.  Nos. 6, 7 and 8 steels were forged, if at all, at the first heating and this was followed for Nos. 6 and 7 by heating to 1,050 DEG , A.C., and for No. 8 by heating to 950 DEG , A.C.  The effect of forging to alter a dimension 30 instead of 60 per cent. is also given in the case of Nos. 6, 7 and 8.  U.S.A. Specification 1,995,419 is referred to.
Patent GB-555495-A (GB)
Title: Improvements in or relating to fusion welding
IPC: B23K9/035
Filed: 1942-02-20
Abstract: 555,495. Uniting by fusion. BABCOCK & WILCOX, Ltd. Feb. 20, 1942, No. 2294. Convention date, April 29, 194t [Class 83 (iv)] In uniting metals by fusion, the welding groove is backed up by an element formed wholly or mainly of metallic particles, consisting principally of the main constituent of the weld metal in order tha welding may be effected the full depth of the groove with minimum penetration of metal beyond the groove and' with a reduced danger of contamination of the weld metal by backing metal. The backing material may consist of compacted iron or steel particles or porous alloy particles according to the composition of the weld metal and used either alone or mixed with a heat-resisting mouldable compound. It may be packed in a metal channel. In circumferentially welding tubular articles together the channel 30 may be of ring form with the outer diameter less than the inside diameter of the tube to provide clearance for ready removal after welding. The channel may consist of three or more sections forced outward by springs 46, the interfitting surfaces 48 being parallel to a plane passing through the axis of the tube sections and bisecting opposite ring sections. In a modification the backing ring may be friable and is composed of metal particles consisting of 60 per cent of electrolytic iron powder (about 100 mesh) with 30 per cent of iron chips (28 to 48 mesh) bonded by a binder such as a mixture of raw kaolin with hard burned kaolin particles of fineness not less than that of the chips and made plastic by addition of water. The moulded ring is dried at 212‹ F. followed by 15 to 30 minutes baking at 1000‹ F. and surface finished after cooling. Such a ring is placed in a recess 58 in the ends of the parts to be welded. In a further modification the binder may be dispensed with the ring being preformed by a light sintering process. In metallic arc welding with such a backing element the base metal may be preheated to about 150‹ F. to lessen the initial chilling of the first bead.
Patent GB-249630-A (GB)
Title: Improvements in or relating to wired wireless systems
IPC: H04B3/56
Filed: 1925-01-27
Abstract: 249,630. Electrical Improvements, Ltd., Bullers, Ltd., and Grant, L. C. Jan. 27, 1925. Condensers.-High-frequency signalling currents are fed to and from electric power lines by a condenser-coupling arranged inside the usual insulator support. As shown in Fig. 1, the power line is connected at H to an internal electrode G, which is surrounded by a conducting cylinder J connected in turn to the signalling line K. The electrode G and cylinder J provide a capacity coupling between the power and signalling systems, and are separated by an oil or granular dielectric filling the hollow insulator or by a shield L of suitable insulating material. The head B of the insulator is provided with observation windows C, a protecting shield D, and the usual arcing ring E. To allow for temperature expansion and contraction, the electrode G is made in two parts, which are connected by a flexible conductor N. Fig. 3 shows a modified construction for coupling a signalling line to the junction point between two sections of the power line. Both ends P<1>, P<2> of the insulator are formed as cable-sealing ends, and the signal currents pass through the capacity path between the internal electrode G<2> and a metal foil, or wirewrapping plate J<2>. In a multiphase system the central electrode is formed of a number of rods each carrying one phase of the current supply; the second electrode of the capacity coupling consists either of one conducting cylinder surrounding the group of rods, or of a group of connected cylinders each surrounding one, rod.
Patent GB-588195-A (GB)
Title: A paper-knife or envelope opener
IPC: B43M7/00
Filed: 1945-01-31
Abstract: 588,195. Paperknives. EKSTRAND, A. F. Jan. 31, 1945, No. 2432. [Class 146 (ii)] A paperknife or envelope opener consists of a substantially U-shaped metal wire having unequal arms a, c and provided with a cutting edge b between the longer arm a and the base of the U, the shorter arm c having a bent extension which either receives a handle d, Fig. 1, or is formed as a spiral handle d, Fig. 2.
Patent GB-633224-A (GB)
Title: Improvements in or relating to heat treatment furnaces
IPC: C21D9/00
Filed: 1948-01-27
Abstract: 633,224. Metal-heating furnaces. STETN & ATKINSON, Ltd.. and ASHLEY, J. P. Jan. 27. 1948, No. 2482. [Class 51 (ii)] A cover for use when annealing coils 1 of strip metal comprises a cylindrical sheet metal wall 2 formed near the top and bottom respectively with a plurality of angularly-spaced holes 3 and 4 connected by metal tubes 5, the wall 2 being welded to a lid 6 and fitted with a baffle 7 which rests on the work support 10. The latter is formed with a central aperture 14 provided with a fairing 15 and is spaced from a lower plate 11 by radial webs 12 to accommodate a centrifugal fan 13 which creates an upward flow of the atmosphere through the tubes 5. The uppermost coil may be covered by a plate 16 and some or all the coils may be spaced from one another by channelled separators 18 so that the atmosphere issuing from the holes 3 passes into the annular space 17 surrounding the coils and thence through the channels to the apertures 14 as indicated by the arrows. The plate 16 may have a small central hole to allow a portion of the atmosphere to flow directly to the central passage within the coils, or may be dispensed with. The fan 13 may be replaced by an axial flow fan arranged to create an' upward flow through the central passage and a downward flow through the tubes. The latter are provided with expansion joints 9 and may be interconnected by webs. The lower end of the cover dips into a sand seal 8. Specification 632,406 is referred to.
Patent GB-670017-A (GB)
Title: Improvements in or relating to the separation according to particle size of crushed or milled ores and the like
IPC: B07B1/30
Filed: 1949-01-31
Abstract: 670,017. Separating granular material. MOGENSEN. F. K., (trading as KOMMANDITBOLAGET F. MOGENSEN & CO.). Jan. 31, 1949 [Jan. 31, 1948], No. 2547/49. Class 117 In a method of separating crushed ore and the like into fractions according to particle size, the particle mixture is passed through a system of obstacles arranged so that all the particles can pass through the system, the coarser particles being diverted from the path of the finer particles due to their greater frequency of coll sion with said obstacles, and the fractions of sized particles being collected at various positions according to their path of travel through the system. As shown the obstacle 'system comprises superposed parallel sieves 10 all having the same size of aperture, which is large enough to pass the coarsest size particles, and being inclined downwardly to one side to determine the direction of diversion of the coarser particles during their travel. Vibratory movement may be imparted to the sieves. The mixture is fed via a shoot 18 to the upper end of the top sieve 10 and the fractions are collected in increasing order of particle size, as determined by the extent of diversion from the straight-through path, at points 13, 14, 15, 16 and 17. In an alternative arrangement the particle mixture may be passed intermittently through the system and the collections made at intervals to collect equally delayed particles, the coarser particles escaping from the system at a later time than the finer particles. A series of systems may be used, each system classifying the finest fraction issuing from the preceding system. The Specification as open to inspection under Sect. 91 comprises also an arrangement wherein the sieves 10 are supported in a casing mounted on springs and vibrated by a crank mechanism. This subject-matter does not appear in the Specification as accepted.
Patent GB-101827-A (GB)
Title: Improved Shield or Screen for the Protection of Infantry.
Inventor: OXLEY JOHN JOSEPH
IPC: F41H5/14
Filed: 1916-02-22
Abstract: 101,827. Oxley, J. J. Feb. 22, 1916. Armouring vehicles. - Consists in a vehicle on which a machine gun may he mounted and which comprises a spherical roller a of a man's height or more to be propelled by animal or other - motive power by means of a pole f, protection being afforded by a hood k with sides extending nearly to the ground and with a front plate p hung between the sides. The gun is mounted on the pole under the hood.