baber/WOPTO huggingface dataset:
Patent GB-805545-A (GB)
Title: Improvements in or relating to axial-flow fluid machines for example axial-flow turbines of gas-turbine engines
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: F01D25/24
Filed: 1956-02-06
Abstract: 805,545. Turbine stator structure. ROLLSROYCE Ltd. Feb. 6, 1957 [Feb. 6, 1956], No. 3703/56. Class 110 (3). In an axial-flow machine such as an axialflow turbine of a gas turbine engine, the casing 10 is wholly tubular (i.e. it is unsplit diametrically) and shrouding for a ring of rotor blades is disposed within the casing. The shrouding consists of an undivided annular shroud ring 20 which encircles the rotor blades 12 and is so dimensioned as to be spaced radially inwards from the casing, the shroud ring being located circumferentially by means of radial dogs 24 at the downstream end of the ring which engage between radial dogs 25 formed on the inner surface of the casing. The shroud ring abuts at its downstream end against a ring member 26 which is located axially by means of radial lugs 27 thereon engaging in a circumferentially-extending groove formed between the dogs 25 and aligned dogs 28 on the casing. The ring member 26 is located circumferentially by means of an axial projection 30 thereon which engages between a pair of the dogs 29 formed on the nozzle guide vanes 15, the dogs 29 also interengaging with the dogs 28 on the casing whereby the guide vanes are positioned circumferentially. Axial movement of the shroud ring 20 in an upstream direction is limited by means of an abutment surface 33 on the casing 10. A piston-ring type of sealing ring 31 is disposed within a groove 32 at the upstream end of the shroud ring 20 and cooperates with the casing 10 to prevent flow of working fluid through the space between the casing and the shroud ring 20. The downstream surfaces of the sealing ring and the groove in which it is mounted are frusto-conical, the sealing ring and groove being in contact only over these surfaces. The casing 10 is formed of a number of axially-abutting sections which are joined by means of bolting flanges 11. The shroud ring 20 is formed with circumferential ribs 21, 22, the ribs 21 on the inner surface co-operating with ribs 23 on the rotor blade tip shrouds 17 to prevent leakage of working fluid
Patent GB-372358-A (GB)
Title: Improvements in or relating to bomb dropping apparatus for aircraft
IPC: F42C14/06
Filed: 1931-02-06
Abstract: 372,358. Hauling by pinching of ropes by sheaves and the like. RANKEN, F.; 14, Douglas Crescent, Edinburgh, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Feb. 6, 1931, Nos. 3751 and 23877. [Class 78 (ii).] In order to raise an aircraft bomb carrier after the bomb has been discharged by tilting the carrier, the rotation of an air-screw 14 is conveyed to a nut 11 directly engaging a cord 6 which is prevented from rotation by pulleys 10 and has a screw thread impressed upon it by the action of the rotary nut, whereby a pull on the carrier is exerted. In a modification, the cord is pressed by a spring into engagement with a spiked roller rotated by the air-screw.
Patent GB-933220-A (GB)
Title: The manufacture of semi-conductor devices
IPC: H01L21/00
Filed: 1962-02-01
Abstract: 933,220. Semi-conductor junctions. GENERAL MOTORS CORPORATION. Feb. 1, 1962 [Feb. 16, 1961], No. 3805/62. Class 37. An alloy is formed from a material having one conductivity type and another material from the same group of the periodic system, the alloying being carried out in an atmosphere of hydrogen wetted with hydrochloric acid, the alloy is formed into a sheet from which electrodes are cut which are alloyed to a semiconductor body of the opposite conductivity type to form a PN junction. The alloy may comprise indium and 3-5% aluminium alloyed at 750‹ C. and the electrode may be alloyed to a germanium body at 400‹ C. in a similar atmosphere as that used in forming the electrode material alloy. The PN junction may be electrically etched in a 40% potassium hydroxide solution, washed, immersed in a 1% solution of hydrochloric acid, washed, and then ultrasonically cleaned in acetone. It is said that a junction having an indium alloyed junction formed in the normal way may be improved by alloying a pellet of the alloy formed by the method of the invention to the indium electrode. Examples are described of a transistor having an emitter electrode according to the invention alloyed, together with a ring base, to one face of a semi-conductor wafer and a collector of normal type alloyed to the other face, Fig. 2 (not shown), or alternatively, the emitter may be annular, Fig. 3 (not shown).
Patent GB-177700-A (GB)
Title: Improvements in plant stands
IPC: A01G9/00
Filed: 1921-03-22
Abstract: 177,700. Loudon, D. March 22, 1921. Flower - stands.- A plant stand comprises a pot-holder mounted on a pivot 27, forming part of a member 25, pivoted on a pin 23 between the lugs 22 on the head 20 of a vertical telescopic stand 10. The member 25 is provided with a lug 50 which is engaged by an adjusting set-screw 52. A second lug 51 on the member 25 abuts against the stand-head 20 when the pot-holder is in the vertical position, the member 25 being locked in this position by a spring-pressed plunger 60 in the stand-head 20 engaging a hole 64 in the member 25. The pot-holder members 41 are made adjustable on the spider base 31 to accommodate pots of various sizes.
Patent GB-175186-A (GB)
Title: Improvements relating to the cleaning and ginning of cotton
IPC: D01B1/08
Filed: 1921-02-03
Abstract: 175,186. Bennett, G. R. Feb. 3, 1921. Steering-gear.-The steering and driving wheels 36 of a self-propelled machine rotate on stub shafts 37 carried by vertical spindles 41 whereby they can be turned for steering purposes by cords 56 running over pulleys 53, 54, the latter being mounted on the steering-pillars.
Patent GB-607644-A (GB)
Title: Improvements in or relating to means for fixing and forming electrical contacts
IPC: H01H11/04
Filed: 1946-02-09
Abstract: 607,644. Making electric contact springs. ERICSSON TELEPHONES, Ltd., MOORE, H. J., BACON, J. T., and COOPER, J. C. Feb. 9, 1946, No. 4091. [Classes 83 (ii) and 83 (iv)] Riveting; shearing.-Ina duplex machine for forming and fixing contacts to springs of electrical switches &c., the contact material is fed, sheared to length and temporarily secured in holes in the spring at one station and finally swaged at another station. Wires 12, 13 are fed by rolls 14, 15 through holes in a carriage 16 and aligned holes in a member 30 and are sheared on reciprocation of the carriage. Air pressure in a cylinder 19 with ram 18 moves the carriage forward through a spring 21 and through a plate 20, rod 22 and ratchet gear rotates the feed rolls 14, 15. On retraction of the carriage 16, pins in the member 30 propel the wires through holes of a spring located by hand on a dowel 34. On depression of a toolholder 2 by air cylinder 8, a sleeve 37 depresses the spring and pins swage simultaneously the wires to form a temporary attachment. The spring is then transferred by hand to a plate 46 with locating dowel 44 and a tool-holder 3 is depressed to shape finally the contacts. The plate 46 is movable by pneumatic means to two positions corresponding with tools on the holder 2 for performing preliminary and final swaging. In a modification, the feed rolls are mounted on a stationary part of the machine.
Patent GB-906671-A (GB)
Title: Improvements in or relating to woven electrical conductor tape
Inventor: SELLERS JOHN
IPC: D03D1/00
Filed: 1960-02-05
Abstract: 906,671. Flat strip cables. FRENCH & SONS Ltd., THOMAS. Feb. 6, 1961 [Feb. 5, 1960], No. 4112/60. Class 36. [Also in Group IX] Conductor wires 4, 5 are woven as warp elements in separate tubular passages in a nylon tape and are drawn into zigzag formation by looping a weft b round them at intervals, whereby the tape can stretch under tensile load without rupturing the wires. Specifications 794,186, 839,198 and 852,157 are referred to.
Patent GB-426517-A (GB)
Title: Improvements in and relating to dry surface contact rectifiers
IPC: G01R19/22
Filed: 1934-02-08
Abstract: 426,517. Static contact rectifiers. TOMLINSON, A. V., 65, Victoria Street, London.-(Hartmann & Braun Akt.-Ges. ; Frankfort-on-Main, Germany) Feb. 8, 1934, No. 4214. [Class 37] A surface contact rectifier is constructed of elements having temperature coefficients of resistance of opposite sign so that the total resistance of the rectifier as a whole remains substantially constant and independent of temperature. In an example, elements utilizing copper-oxide with a negative coefficient are combined with elements utilizing selenium which has a positive coefficient.
Patent GB-743321-A (GB)
Title: Improvements in and relating to the production of aluminium bronzes
Inventor: RICHARDSON WILLIAM HENRY
IPC: C22C9/00
Filed: 1950-02-20
Abstract: A method of treating aluminium bronze consisting of 8-12 per cent Al, up to 8 per cent of one or more of the elements Fe, Ni, Co, and Mn, and up to 0,3 per cent of one or more of the elements As, Sb, Bi, Cr, Pb, Mg, P, Si, Sn, and Zn, the remainder being copper, comprises heating the bronze to 800-1050 DEG C. to bring it to the beta condition and quenching to below 600 DEG C. prior to reheating for final hot working.  After quenching and prior to hot working the bronze may be soaked at 400-800 DEG C. and before heating to 800-1050 DEG C. the bronze may be hot worked at 900 DEG C.  A finished article of the bronze may be tempered or age hardened at a temperature not above the working temperature.
Patent GB-659187-A (GB)
Title: Improvements in or relating to apparatus for developing photographic printing papers
IPC: G03D7/00
Filed: 1949-02-16
Abstract: 659,187. Photographic developing apparatus. CELLOPHANE SOC. ANON. Feb. 16, 1949, No. 4289. Convention date, March 5, 1948. [Class 98 (ii)] Apparatus for the gaseous development of photographic printing papers comprises a fluidtight casing having a pair of lips defining a slot permitting ingress and egress of the sheets of paper, or two pairs of lips defining two slots respectively serving as ingress and egress slots, the said slot or each of said slots giving immediate access to a drive roller within the casing which co-operates with another roller or with a fixed element in the casing and is adapted to drive the sheets forward, the drive-roller being rubber-covered, and resilient material being provided between the drive roller, and a co-operating roller if any, and the associated lips, to render the casing fiuid-tight, the said casing being internally divided into at least two compartments, one of which communicates with the aforesaid slot or slots, while the other or each of the other compartments contains a source of developing gas, the wall or walls which separate the compartments being perforated to permit the passage of the developing gas therethrough. As shown, the casing 1 is slotted at 4, 5 and printing paper to be developed is fed through slot 4 and engaged in the nip of rollers 7, 8 which are rotated by a crank 9 on roller 7 to feed the sheet into a compartment 15 defined by perforated walls 13, 14 through which passes ammonia vapour from a vat 18, 19 in each chamber 16, 17. When the paper has been subjected to the gas for the required time, rollers 10, 11 are rotated by a crank 12 so that the sheet is fed out of the casing through slot 5. The drive rollers 7, 10 are rubber-covered and resilient packing material 23 is provided to prevent leakage of gas. The casing may be so shaped and the rollers 7, 8 and 10, 11 may be so arranged that the printing paper leaves the casing in a direction normal to the direction of entry. Another form is described in which the drive rollers co-operate with a wall of the casing to feed the printing paper; a modification is also described wherein a single drive roller co-operates with another roller or with a wall of the casing to feed the printing paper into and out of the casing. Specification 445,235 is referred to.
Patent GB-451675-A (GB)
Title: Improvements in the manufacture of highly polymeric artificial materials and mixed polymerisates
IPC: C08J3/00
Filed: 1935-02-11
Abstract: Polymeric bodies containing chlorine such as polyvinyl chloride, interpolymers of vinyl chloride and vinyl acetate or acrylic acid esters or afterchlorinated polyvinyl chloride are extracted with the aid of an organic liquid to remove low molecular weight polymers. Suitable liquids include alcohol, aliphatic ethers and benzine hydrocarbons.  The products may be used in the manufacture of foils, films, threads, coatings, and artificial leather.  In an example afterchlorinated polyvinyl chloride is extracted with alcohol containing a small proportion of toluene.  Specification 401,200 is referred to.
Patent GB-631395-A (GB)
Title: Improvements in or relating to dielectric heating of bread or like products
IPC: A21D8/06
Filed: 1947-02-14
Abstract: 631,395. Dielectric heating. COMMUNICATIONS PATENTS, Ltd., and YOULE, F. Feb. 14, 1947, No. 4399. [Class 39(iii)] A method of cooking bread and like substances by dielectric loss in a R.F. field comprises adding extra heat by radiation or conduction from a separate source of heat not energized by the R.F. field, to the outer surfaces of the bread to form a crust. The additional heat may be provided simultaneously or before, or after, the dielectric heating.
Patent GB-749042-A (GB)
Title: Improved process and device for the liquid treatment of woven fabrics
IPC: D06B3/20
Filed: 1954-02-15
Abstract: <PICT:0749042/IV(c)/1> In a machine for the liquid treatment of open width fabrics the material is passed continuously through the treatment liquid which is set in oscillatory motion by the vibration of corrugated metal plates therein.  The Figure shows a treating apparatus in which the vertical containers 2 are filled with treatment liquid from a conduit 14 and in which the open width fabric 3 to be treated is passed sequentially through each container over the rollers 4 which are driven from shaft 6 and round guide-faces 5. The fabric finally passes via a tensioned metal plates which are connected to each other and have a check-patterned shape as deflector roll 10 and after having been washed by liquid from a set of injector nozzles is passed between pressure rollers 13.  Each container has therein a member 7 consisting of two corrugated or sheet viewed in cross-section the bends of the plates extending transversely of the path of movement of the fabric 3.  Each member 7 is secured to a rod 8 connected to a vibrator 9 which imparts longitudinal oscillatory movements to the members 7, so that the liquid is given an oscillatory movement substantially at right angles to the fabric passing along the corrugations.  The guide faces 5 are also moved up and down synchronously with the vibrators.
Patent GB-664048-A (GB)
Title: Improvements relating to servo systems
IPC: G05D3/14
Filed: 1949-02-18
Abstract: 664,048. Electric correspondence control systems. FERRANTI, Ltd., and TAYLOR, M. K. Feb. 17, 1950. [Feb. 18, 1949] No. 4442/49. Class 40 (i). [Also in Group XXIX] Apparatus for producing a first derivative component in a known servo-system comprises a 'fluid-friction drive 10 between the output shaft 15 and a driven shaft 16 constricted against turning by a spring 17 or similar device, so that the angular displacement of the driven shaft 16 is proportional to the speed of the driving shaft 15, this displacement being translated into a proportionate voltage, A.C. or D.C., by the corresponding movement of the slider 20 of a potentiometer 22 attached to the shaft 16. The driving shaft 15 may be geared to the output shaft of the servo system, and the potentiometer 22 made to the appropriate law. The potentiometer 22 may be a pneumatic valve, or control such a valve electrically.
Patent GB-574055-A (GB)
Title: Improvements in aircraft construction
IPC: B64C1/14
Filed: 1942-04-03
Abstract: 574,055. Fastenings. BOOTH, J. H., BOOTH, J. I., and PERFECTA MOTOR EQUIPMENTS, Ltd. April 3, 1942, No. 4484. Drawings to Specification. [Class 44] [Also in Group XXXIII] A fastening for securing any part of an aircraft which may require to be jettisoned in an emergency comprises a lever on one part having a nose engaging an abutment on the other part, the lever being releasably retained in the securing position by a retaining member on the part having the abutment. Two forms of fastening are described, identical with those disclosed in Specification 562,808.
Patent GB-596398-A (GB)
Title: Improvements in or relating to positive double-lift open-shed dobbies for looms
IPC: D03C1/06
Filed: 1945-02-22
Abstract: 596,398. Loom dobbies. SOC. ANON. A. SAURER. Feb. 22, 1945, No. 4494. Convention date, Jan. 18, 1944. [Class 142 (i)] In a double-lift open shed dobby having oppositely reciprocating draw knives 7, 8 engaged by hooks 2, 3 controlled by pattern cards 45, each hook has two shoulders for embracing its draw knife, and a third shoulder for abutting a fixed knife 9, 10 to hold the hook against a stop 19, 20 when it is lifted off its draw knife. Easy engagement and disengagement of the hooks and knives is ensured by pressing the hooks against the stops 19, 20 when the draw knives 7, 8 reach the ends of their stroke. This action occurs naturally if one hook (e.g.- 3), is ih engagement with its draw knife, since the baulk lever 4 is then pivoting about the stop (e.g. 19), of the other hook; but if both hooks are clear of the draw knives, an oscillating lever 64, encounters an arm 70 (on a lever 56 carrying the baulk lever 4) and presses the hooks against the stops. The draw knives 7, 8 are coupled to opposite ends of a centrally pivoted lever oscillated by a grooved cam; a similar arrangement reciprocates rockers 38, each carrying a pair of needles 40. The needles read the cards 45 and tilt the rocker so that on its return stroke it strikes one or other of a pair of throwover levers 46, 47, thereby lifting or lowering the associated hook (2 or 3). Each lever 56, Fig. 1, actuates a heald shaft through a link 57, a cam slot 59, and a lever 61; the' ends of the slot are concentric with the pivot of the cam to prevent the forces on the healds from reacting on the dobby.
Patent GB-736006-A (GB)
Title: Improvements in and relating to microbalances and allied instruments
Inventor: TAYLOR WILFRED KENELM
IPC: G01G7/06
Filed: 1952-02-20
Abstract: 736,006. Microbalances. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 16, 1953 [Feb. 20, 1952], No. 4528/52. Class 40 (1). An instrument for measuring small forces comprises a beam mounted to permit deflection, having a member to or at which said force may be applied, an electrode movable with the beam and at least one fixed electrode co-operating therewith to form a capacitor variable in accordance with movements of the movable electrode, together with a circuit for measuring changes in capacitance and producing a voltage proportional thereto, which is applied between a restoring electrode on the beam and a fixed one to provide an electrostatic restoring force opposing beam deflection. In one embodiment (Figs. 1 and 2) for measuring small pressures, the centre plate 12 of a Knudsen gauge, which is mounted at one end of beam 10 is subject to a thermal molecular force proportional to pressure. An electrode 15 mounted on the opposite end of the centrally pivoted beam forms with fixed plates 16, 17 a pair of displacement sensing capacitors forming adjacent arms of an A.C. bridge. The unbalance voltage corresponding in sense and magnitude to the beam displacement, is fed after amplification at 21 to phase-sensitive detectors 22. The fluctuating direct voltages, instantaneously proportional to beam displacement, from the detectors are amplified and filtered at 23 and applied through a stabilizing network 24 (and Fig. 4, not shown) which advances the phase by an amount proportional to beam velocity, sensitivity being adjustable by a variable potentiometer forming part of this network. The voltages between plates 16, 17 in the balanced condition is used as a measure of the pressure. The fixed plates 16, 17 made of metal foil stretched over insulating rods 34a, 34b, by coil springs 36 attached to both ends; are maintained at different temperatures by having a heater coil 40 on one plate. The insulated rods are mounted in pairs on clamps 32 carried by rods 31 bolted to end plates 30, whereas the wire 11 about which the beam pivots is mounted centrally between the four rods and held taut by leaf spring 39 to which it is attached, the beam zero being set with the aid of a magnetic member 43 on the wire. The whole beam assembly is housed in a pressure chamber, and the axis of rotation of the beam may be horizontal or vertical. A further embodiment employs a counterbalanced beam having only one set of plates, which serve both as Knudsen gauge and as sensing capacitors. The fixed plates form the ends of vessels through which water at a controlled temperature is circulated, these vessels and the electrical connections to the plates being sealed into a gas envelope. In a less sensitive arrangement the moving plate is mounted on a cantilever spring:
Patent GB-1083785-A (GB)
Title: Ramming devices
Inventor: KAUL WOLFGANG
IPC: B21J13/08
Filed: 1966-02-02
Abstract: 1,083,785. Forging. ZENTRALINSTITUT FUR FERTIGUNGSTECHNIK DES MASCHINENBAUES. Feb. 2, 1966, No. 4573/66. Heading B3H. A portable hammering device comprises a tup 4 suspended by means 3 and connected to a fluid-operated drive motor 7. The device is of particular use in ramming home die-supporting wedges 5 on forging hammers. Tup 4 is suspended by chains 3 from an arm 2 and is connected through elastic mountings 6 to a fluid cylinder 7. The piston-rod 9 is connected through spring 10 to the hammer frame. A control valve 12 actuated by rotation of handle 14, causes fluid to enter the front end of cylinder 7 for striking a blow. In another embodiment, Fig. 3 (not shown), the cylinder 7 is disposed above the tup. In a further embodiment, Fig. 5 (not shown), the piston-rod 9 is connected to the hammer frame by a wire cable 19 passing through a guide tube 18 and by a pair of chains 21.
Patent GB-693133-A (GB)
Title: High voltage transmission lines with suspended circuit-breakers
IPC: H01H33/00
Filed: 1951-02-26
Abstract: 693,133. Transmission line arrangements. ETABLISSEMENTS MERLIN & GERIN. Feb. 26, 1951 [March 10, 1950], No. 4659/51. Class 38 (iv). [Also in Group XXXVII] In a high-voltage transmission system, airblast switches are suspended from the line towers so as to avoid the need for high switchsupporting insulating pillars. In Fig. 1, a line tower 53 supporting a line 51 has suspension insulators 59, 60 carrying an air-blast switch 55 which is provided with symmetrically-arranged arc-extinguishing chambers 56, 57 and a compressed air reservoir 58. In Fig. 2 (not shown) the switch is supported by a single rigid suspension insulator. Isolating switches, the operation of which may be synchronized with that of the air-blast switch may be carried by the adjacent line towers, Fig. 4 (not shown). Fig. 3 (not shown) illustrates the double-break switch of Specification 642,176, [Group XXXVII], modified for suspension mounting. The switch 55 is controlled remotely from the ground by pneumatic or hydraulic means, an insulating tube 61, Fig. 1, being provided for this purpose Specifications 615,030, 642,176 and 667,724, [all in Group XXXVII], are referred to.
Patent GB-1560185-A (GB)
Title: Respiratory syncytical virus vaccine
IPC: A61K39/155
Filed: 1978-02-06
Abstract: By serial passage of the virulent RS virus (respiratory syncytial virus) in human diploid lung fibroblasts, a non-pathogenic, but antigenically active, live RS virus is produced. The virus is suitable for the production of vaccine from live virus.