baber/WOPTO huggingface dataset:
Patent GB-887132-A (GB)
Title: Variable flap plug type jet propulsion nozzle
IPC: F02K1/04
Filed: 1960-04-29
Abstract: 887,132. Jet propulsion nozzles. UNITED AIRCRAFT CORPORATION. April 29, 1960 [May 5, 1959], No. 15094/60. Class 110 (3). A jet propulsion nozzle comprises a fixed inner body diverging at its forward end and converging at its after end concentrically surrounded by a divergent-convergent outer duct terminating at a point aft of the region of maximum diameter of the inner body but short of the after end thereof, the outer duct being convergent at its after end to a greater degree than the convergent part of the inner body and a plurality of flaps pivotally attached to the after end of the outer duct and adapted to be pivoted between an inner position in which they form with the inner body a convergent duct and an outer position in which they form a convergent-divergent duct. The jet propulsion nozzle 20 comprises an inner body 34, an outer member 36, a plurality of inner flaps 38 and a plurality of outer flaps 40, together with actuating means 42. The inner body has an after end 46, which terminates in a point (not shown), made of sheet metal bolted along a flange 56 to the forward end 44. The surface 48 of the inner body is divergent-convergent to the axis 24. The outer member 36 comprises an inner wall 74 and a substantially cylindrical outer wall 76. The inner wall 74 comprises a divergent fixed portion 82 and a movable portion 84 which is convergent to the axis 24. The movable portion 84 carries, at its downstream end, a plurality of flaps 38. The outer wall 76 carries, at its downstream end a plurality of flaps 40. Actuating means 42 can move the wall portion 84 axially forwardly from the position shown, in which the nozzle acts as a convergent one, to a position in which the nozzle acts a convergentdivergent nozzle, Fig. 3 (not shown). The member 84 is connected through a link 135, roller 140 and guide 132 and link 138 to the flaps 40. The movement of the flaps 38 is controlled by the roller 134 and guide 133. In the position shown, the flaps 40 are positioned so that the air flow over the outer wall 76 tends to hold the gas flow on to the inner body 34 under subsonic conditions. Under supersonic conditions, the flaps 40 are extended outwardly to form a substantially cylindrical extension of the wall 76. This arrangement is stated to reduce the base drag. An arrangement in which the flaps 38, 40 are pivoted together at their downstream ends is also described.
Patent GB-259872-A (GB)
Title: Improvements in and relating to rolling mills
IPC: B21B25/02
Filed: 1926-06-16
Abstract: 259,872. Nowak, A., and Mannesmann rohren-Werke. June 16, 1926. Rolling-mandrels; mandrel supports. -The last end portion of tubes in pilger rolling can be rolled down by supporting the blank W by a sleeve e which can be slid backwards on the mandrel a and which is secured in either the forward or back position by the same spring-pressed locking members h sliding radially to either of the openings f or f<1> in the sleeve. To slide the sleeve backwards a ring i is pushed forward to depress the locking members h whereupon the sleeve is moved back by its loaded spring k until the slots f come opposite the locking members h to receive them. The end piece can then be rolled down, the tube taken off, and the sleeve reset. The mandrel a is secured to the mandrel holder by a key d.
Patent GB-1247006-A (GB)
Title: Improvements in or relating to the indexing and retrieval of information
Inventor: WLIK HERMAN JAMES GA
IPC: G06F17/30
Filed: 1968-03-29
Abstract: 1,247,006. Indexing and retrieving information. DEFENCE; SECRETARY OF STATE FOR. 27 June, 1969 [29 March, 1968], No. 15210/68. Heading G4A. In a computer, letters of a keyword relating to a given item of information are converted to binary numbers, the numbers being combined to give a secondary binary number representing the word which is stored in a quick access store. This process is repeated for each keyword in the item of information, and then all the stored secondary numbers are combined to give a 32-bit composite keyword which is stored in a slow access store, e.g. magnetic tape, drum or disc at the address corresponding to an identifying symbol of the information. Each 32-bit word is converted into a four-bit number by dividing the 32-bits into four groups of eight, each group resulting in a "1" bit if there is at least one "1" in the digit of the group and a "0" bit otherwise. These four bit numbers may be transferred to the slow access store with the address of the corresponding 32-bit word. Alternatively, part of the slow access store may be designated for each four-bit word. In a further modification the 32-bit word is fed to the quick access store, a further number is derived from it, the number determining the part of the four access store to which the keyword is transferred. To retrieve information a list of keywords is fed in to form a first 32-bit composite word and from it a third word to indicate in which part of the store a possible match can exist. The read in composite keyword (held in the quick access store) is compared with the stored composite keywords (in the indicated part of the slow access store) and the computer prints out the data corresponding to matching composite keywords. In the embodiment described in which the input may be in the form of punched paper tape the letters of the keyword are converted to the binary representation of their position in the alphabet, that is A becomes 0001. These numbers are then added without carry to give a further four-digit number having a decimal value between 0 and 31 and the composite keyword is formed by putting a "1" in a 32- bit digit at the position corresponding to its decimal value.
Patent GB-557751-A (GB)
Title: Improvements in electric high frequency generators
IPC: H02K19/24
Filed: 1941-11-26
Abstract: 557,751. Inductor alternators. ALLMANA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 26, 1941, No. 15221. Convention date, Dec. 9, 1941. [Class 35] Unwound teeth 4 on the stator co-operate with similar teeth 3 on the rotor, and the teeth in adjacent portions between the semi-closed slots 2 are staggered, so that the pitch of the rotor teeth is half a tooth-pitch less per portion than the stator pitch. The width of the slot opening is half the difference between the widths of a groove and a tooth. In Fig. 3 each pole is divided into an odd number, say five, slots 2 for the induced winding 1. The exciting winding is placed in large slots 6. The projections 12 at the ends of the pole piece are provided with only half the normal number of teeth so that no resultant alternating flux passes through the exciting circuit. In a polyphase machine the phases 7, 8, 9, Fig. 4, are arranged consecutively in each pole and are separated by untoothed portions 5 ; or 4 separate pairs of poles may be provided for each phase. The machine may be heteropolar or homopolar.
Patent GB-635780-A (GB)
Title: Improvements in apparatus for producing slub yarns
IPC: D01H5/36
Filed: 1947-06-10
Abstract: 635,780. Slub yarn producing mechanism. WARDLEY, F. W., (Dominion Textile Co., Ltd.). June 10, 1947, No. 15301. [Class 120 (ii)] A stub yarn producing mechanism which transmits identical slubbing action simultaneously to both back rolls of a spinning frame having companion pairs of driven front and back rolls 10, 12 and 18, 20 respectively, a rotatably mounted slub producing cam 34 and means for rotating said cam, comprises a pivotally mounted pawl lever 38 adapted for actuation by said cam, a first clutch 50, 54 at one side of the frame movable into engagement by said pawl lever, a second clutch 68, 72 on the other side of the frame, a connecting rod 56, extending across the frame, which is rotatably mounted about its longitudinal axis and which has a yoke 62 at one end and is formed at the other end so that it can be rotated by pawl lever 38 whereby said rod 56 upon actuation by the pawl lever 38 rotates and urges the second clutch 68, 72 into engagement simultaneously and in the same direction as said first clutch, 50, 54. As shown the pawl lever has a yoke 42 which operates in the groove 46 thereby engaging the first clutch 50, 54; and an extension 44 which engages the formed end 60 of the connecting rod 56, thus rotating it and causing it, by means of the yoke 62 operating in the grove 64, to engage the second clutch 68, 72.
Patent GB-840391-A (GB)
Title: Apparatus for printing diazo-coated materials
IPC: G03B27/30
Filed: 1957-05-14
Abstract: 840391. Photographic contact printing apparatus. GENERAL ANILINE & FILM CORPORATION. May 14, 1957 [July 10, 1956], No. 15321/57. Class 98(2) In an apparatus wherein the original and lightsensitive diazotype material are passed by an endless band round an exposure cylinder containing an ultra-violet light source, an additional source emitting in the infra-red region is-provided in the cylinder or in a second cylinder, so that opaque originals may be copied on to a vesicular type material on a translucent base, the copy then serving as an intermediate master from which further prints can be made on normal diazotype paper. As shown in Fig. 1, the opaque original is placed face upwards on the feedboard 18 and the vesicular print material such as that described in Specifications 645,825, 707,959 and 719,920 is placed coated side downwards on top. The sheets are passed by a plurality of belts 12 round exposure cylinder 11 where they are subjected to exposure first by the ultra-violet source 40 and then by the infra-red source 46 to produce a visible image in the vesicular material without further development. In a second embodiment, the cylinder 11 contains only the ultraviolet source, the infra-red source being contained in a second cylinder round which the sheets are passed by belts 12. The sheets then pass to a separating device comprising a suction chamber 24 and a suction roller 23, the printed vesicular material being caused to adhere to roller 23 and be delivered on to tray 65. The original adheres to the belts 12 but is removed therefrom by fingers 52 which are caused to protrude through the perforated wall 25 of chamber 24 and between the belts 12 by means of the operating handle 58, so that the original also is deposited in the tray 65. The translucent print may then be used as a master for making copies on normal diazotype paper by exposure in the same apparatus to the ultra-violet source only. Again the master adheres to roller 23, but the fingers 52 are rendered inoperative so that the exposed print may pass on to the usual ammonia development section comprising an ammonia tank 29 and a belt 31, such as the type shown in Specification 797,935. Specification 715,718 also is referred to.
Patent GB-1510484-A (GB)
Title: High strength and waterproofed woven fabric
IPC: D06M13/184
Filed: 1975-04-15
Abstract: 1510484 Water and fire proofed fabric RICHARDS Ltd 15 April 1975 15341/75 Addition to 1308045 Heading DIP A fabric woven from yarns composed at least in part of man-made non synthetic fibres (e.g. regenerated cellulose and regenerated protein) is waterproofed by impregnation with 15-40% total dry weight of one or more compositions comprising a plastics emulsion. a wax, an emulsion stabiliser, a rot-proofing agent and either an aluminium or zirconium salt of a fatty acid or the combination of a fatty acid soap and an aluminium or zirconium salt of a water-soluble carboxylic acid. The wax is preferably paraffin. The plastics emulsion may be one or more of polyvinyl chloride, polyvinylidene chloride. polyacrylate, polyvinyl acetate and butadiene, styrene, butadiene/acrylonitrile, styrene/butadiene and styrene acrylic copolymers. The yarns may contain some polyamide, polyester, polyvinyl alcohol and/or acrylic fibres. Fire resistance may be provided by replacing the paraffin wax by a chlorinated paraffin wax and antimony oxide.
Patent GB-185393-A (GB)
Title: Improvements in and relating to bearings for spinning machine spindles
IPC: D01H7/04
Filed: 1922-05-31
Abstract: 185,393. Vajda & Co. Spindel Ges., (Assignees of Moreike, 0.). Aug. 27, 1921, [Convention date]. Spindle apparatus.-Relates to spinning spindle bearings and comprises yieldingly supported collar and footstep bearings provided with axially extending springs. The col. lar-bearing sleeve f is symmetrically shaped so as to be reversible, and is provided with curved double springs k connected at the middle of their length to a ring t. The spindle g is provided with a ball-bearing cage h, the balls i being in contact at the interior with the spindle g and at the exterior with the sleeve f. The sleeve l of the footstep bearing is fitted with four single springs q made integral with a flat ring p which serves to close the ball-bearing y, the free ends r of the springs engaging notches s at the bottom of the sleeve.
Patent GB-705417-A (GB)
Title: Improvements in and relating to coated paper suitable for stylus inscription and method of making the same
IPC: B41M5/124
Filed: 1951-06-28
Abstract: 705,417. Record sheets. NASHUA GUMMED & COATED PAPER CO. June 28,1951 [June 29, 1950], No. 15399/51. Drawings to Specification. Classes 96 and 140 A record sheet, especially paper suitable for receiving inscriptions from a stylus, having a supporting layer of paper with a dark surface and an obscuring film covering the dark surface is prepared by emulsifying in a solution of a thermoplastic resinous material a volatile liquid, which is a non-solvent for the resinous material and is substantially insoluble in the solution solvent, to form an emulsion of which the solution is the continuous phase and multitudinous droplets of the volatile liquid are the disperse phase, coating the paper with a film'of the emulsion, and drying the film to effect solidification of the resin and to evaporate the dispersed droplets by diffusion, so that the film has a cellular structure consisting of a multiplicity of discrete microscopic voids beneath the surface. The film is normally opaque owing to its heterogeneous structure of voids distributed throughout the homogenous resinous material, but is adapted by local coalescence, due to release of air from the voids by heat, pressure, or both by the stylus, to form a transparent area disclosing'the dark paper surface. Suitable resinous materials are ethyl cellulose with or without compatible resins, e.g. chlorinated diphenyl resins or coumarone-indene resins, polystyrene resins, polyvinyl resins, e.g. vinylacetatevinyl chloride copolymer, polymers of esters of methacrylic acid, e.g. polymethyl methacrylate, or cellulose ester resins, e.g. nitrocellulose or cellulose acetate in, say, benzene, toluene, 'xylene, chloroform, propylene or methylene dichlorides, or n-butyl acetate as solvent. The properties of the film may be modified by plasticizers, e.g. tricresyl phosphate, dioctyl phthalate, and castor oil, and emulsifying agents, e.g. stearyl dimethyl benzyl ammonium chloride, aromatic polyglycol ethers, or sorbitan trioleate, may be added to the solution. The stability of the emulsion is improved by homogenisation. The volatile liquid may be water, a water-miscible liquid, or diluted with water, or a water solution of a solid, which may have an ingredient added to reduce the vapour pressure, when less volatile solvents are used for the resin, e.g. sodium acetate, lead acetate, ethylene glycol,. or glycerol.
Patent GB-1106342-A (GB)
Title: Water impervious sheet material
Inventor: EDWARDS RAYMOND MONTAGUE
IPC: E04D5/10
Filed: 1964-04-14
Abstract: 1,106,342. Laminates. PERMANITE Ltd. 10 May, 1965 [14 April, 1964], No. 15433/64. Heading B5N. A sheet or strip material comprises a basic flexible sheet or strip of either a fibre based felt formed wholly or mainly of animal and/or vegetable fibres or formed wholly or mainly of asbestos fibres, impregnated and coated on at least one face with bitumen, coal tar pitch or asphalt which is substantially non-adhesive at normal or atmospheric temperatures, or of glass fibre tissue coated on at least one face with a bitumen, coal tar pitch or asphalt which is substantially non-adhesive at normal or atmospheric temperatures, characterized by an additional layer on one of the faces of the coated or coated and impregnated sheet or strip of a stabilized self-adhesive bitumen capable of adhesion cold or at normal atmospheric temperatures and a cover sheet or strip of release material applied over the external face of the stabilized self-adhesive layer. The stabilized bitumen may form a continuous or discontinuous layer and may be applied to the coated or non-coated surface of the felt or tissue. In a modification of the invention, granular material e.g. gravel is applied to the coated surface of the felt or tissue prior to the application thereto of the stabilized bitumen layer. Specified stabilizers for the bitumen layer are short fibres of cow and goat hair, jute, flax and ground asbestos. In Fig. 1, strip 10 is drawn through tank 11 containing impregnant, between rollers 13 (these steps being omitted for a glass fibre tissue strip), over transfer coating roller 15, optionally over transfer coating roller 16, past transfer roller 21 where stabilized bitumen is applied, a layer of release paper 25 then being applied to the stabilized bitumen layer.
Patent GB-282598-A (GB)
Title: Improvements in or relating to garments
IPC: A41F9/02
Filed: 1927-06-11
Abstract: 282,598. Hatch, N. June 11, 1927. Pants; breeches and other outer pantaloon garments.-Running pants and undergarments of a similar type have a waist band in two parts the gap being bridged by a strip of elastic material. The elastic 21 passes through slots 23 in the parts 13, 14 of the waist band, and, in the form shown, its ends are furnished with buttons 25 passed through holes 29 in the bands.
Patent GB-880390-A (GB)
Title: Improvements in or relating to electrical cavity resonators, waveguides or the like
Inventor: HARRISON JOHN HENRY
IPC: H01P11/00
Filed: 1959-05-07
Abstract: 880,390. Making waveguides. AVIATION, MINISTER OF. July 20, 1960 [May 7, 1959], No. 15680/59. Drawings to Specification. Class 83 (2). [Also in Group XL (b)] A waveguide or cavity resonator is made by coating a former with a thin layer of metal, moulding the coated former in an artificial resin, removing the former and applying a second layer of metal upon the first layer. The former may be made of phenolic resin and may be removed by milling. A stainless steel former may be used and may be removed by thermal shrinkage. Other suitable former materials are Woods metal and frozen mercury. The first layer of metal is preferably of a granular nature and may consist of copper applied with a spray gun. If the former is removed by milling, part of the first metallic layer is also milled away, e.g. with a diamond milling tool. The second layer of metal may consist of electrolytically deposited silver which is subsequently given a high polish. The same metal may be used for both layers. The moulding preferably consists of an epoxy resin.
Patent GB-877104-A (GB)
Title: Improved catalytic hydrogenation process
IPC: C07C5/03
Filed: 1957-05-17
Abstract: Olefins are hydrogenated by passing in the vapour phase with hydrogen at 100-300 p.s.i.g. and elevated temperature, e.g. 100-400 DEG C., over a complex catalyst prepared by depositing nickel, cobalt or iron in elemental or combined form on an amphoteric oxide, roasting at above 650 DEG C. and depositing a catalyst component of known hydrogenating activity, preferably platinum, indium, palladium, nickel, iron, cobalt, chromia or molybdena.  The catalyst base containing the roasted amphoteric oxide with nickel, cobalt or iron may be extracted with acid; the preparation of the catalyst is described in Specifications 844,242, 844,243 and 863,852 [Group III]. The olefin may be ethylene, propylene, butenes, pentenes, hexenes, butadiene, diisobutylene, or propylene dimer, trimer and tetramer.
Patent GB-1139092-A (GB)
Title: Arc plasma torch
IPC: H05H1/34
Filed: 1966-04-07
Abstract: 1,139,092. Arc blow torches. INSTYTUTBADAN JADROWYCH. 7 April, 1966 [9 April, 1965], No. 15749/66. Heading H5H. An arc plasma torch comprises an outer housing 5 in which is mounted a core 1 in cast synthetic resin 15, a replaceable nozzle anode 6 and a replaceable cathode comprising a body 3 and a tip 14, pressed by a ring 9 against the core 1 to form a liquid-tight seal therewith. The electrodes are cooled by water flowing through the core 1 to the body 3, through a pipe 4 and passages in the housing, round the anode and discharging from a pipe 7. Gas is supplied to the nozzle through a pipe parallel to pipe 7 but displaced radially through 90 degrees. The gas enters the space about the body 3 through tangential passages in the ring 9 or it may be introduced axially.
Patent GB-1207984-A (GB)
Title: Improvements in or relating to radiation measurement
Inventor: SVET DARY JAKOVLEVICH
IPC: G01J5/60
Filed: 1967-10-06
Abstract: 1,207,984. Radiation pyrometry. INSTITUT METALLURGII IMENI A. A. BAIKOVA AN SSSR. April 6, 1967, No. 15887/67. Heading G1A. In a radiation measuring arrangement in which a function of emissivity of a radiant body in combination with the transmissivity of the intervening medium is monitored, and which uses a number of fluxes of different spectral composition, either two such fluxes may be used and their resulting signals raised to a power proportional to the wavelength of the selected flux to provide by their ratio a correction factor whereby a temperature indication may be compensated for emissivity and medium transmissivity, or, the signals from the fluxes, if an even number greater than two is used, are split into two groups and the signals in each of the two groups are multiplied together before the ratio is determined. In this later case the groups are made up so that the sums of the frequencies which are the co-factors in the numerator and denominator are equal. Any known flux selecting arrangement may be used in conjunction with any photo-electric detector, and a log function generator may be inserted between the detector and the power raising circuit. The system may include a reference source and a chopper whereby selected frequencies from the two sources, i.e. the one being measured and the reference are sequentially applied. This system also may include a logarithmic function stage and the measurement may be indicated or recorded.
Patent GB-445400-A (GB)
Title: Improvements in or relating to split pulleys
IPC: F16H55/46
Filed: 1935-05-31
Abstract: 445,400. Pulleys; securing articles on shafts. DOUGLAS, LAWSON, & CO., Ltd., Dark Lane, Gelderd Road, Birstall, near Leeds, and LAWSON, J. C., Mayfield, Whitehall Road, New Farnley, Leeds. May 31, 1935, No.15889. [Class 80 (i)] Each half of a split pulley comprises a rolled or pressed metal rim member 2 to which is secured a double arched web - member 3, Fig. 3, formed by bending the semicircular ends of the oval annular blank, Fig. 4, at right angles along the dotted lines 3<a>, the centre portions 4 forming bridges to receive means such as bolts 6 for securing the pulley halves together to grip the shaft. The bridges 4 may be strengthened by bars 5 tapped at 9 to receive the bolts 6. Separate bush-members 11 may be placed around the shaft, projections 12 on the web-members 3 entering recesses 13 on the bush-members to prevent relative rotation. Access holes 7 may be formed in the rim to admit the bolts 6. The bush-members may be loose on the shaft or arranged to grip it.