baber/WOPTO huggingface dataset:
Patent GB-1373898-A (GB)
Title: Gas turbine nozzle vane structure
IPC: F02C7/18
Filed: 1973-03-26
Abstract: 1373898 Turbines WESTINGHOUSE ELECTRIC CORP 26 March 1973 [7 April 1972] 14336/73 Heading FIT A gas turbine engine nozzle vane structure 34 comprises hollow vanes 19 integral at their ends with shroud segments 20, 22, the outer one 22 of which defines a plenum chamber 38 to which cooling compressed air is directed to enter the blades and which includes forward and rearward end walls 35, 36 provided with slots 54 to prevent cracking due to differential cooling. The slots have circular holes at their inner ends, in which are welded axially-split internally threaded sleeves 60 receiving threaded bolts 62 to seal them against escape of cooling air. The heads of bolts 62 are machined down flush with the outside surfaces at the end walls. The chamber 38 is closed by a cover (40), Fig. 1, (not shown), through which passes an air inlet (50) from an inner casing (12), in an undercut groove 24 of which the outer shroud 22 is mounted.
Patent GB-702172-A (GB)
Title: Improvements relating to processes and apparatus for treating high temperature liquids
Inventor: SCOLES GRAHAM JOHN
IPC: G01J5/04
Filed: 1951-06-19
Abstract: 702,172. Pyrometers. METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 18, 1952 [June 19, 1951], No. 14538/51. Class 97(3) [Also in Group XL(b)] Apparatus for determining the temperature of molten metal 2 (Fig. 1) in a furnace 1 comprises a spring-loaded rod 3 which is dipped into the liquid 2 until its temperature has risen to that of the liquid, and then withdrawn to a standard position where its temperature can be determined by a photo-cell 14. The rod 3 slides at the end of a piston rod 4 in a cylinder 5, being normally held in the raised position by a spring 11, and held down in the liquid 2 during sampling by a latch 13, which on tripping rapidly brings the rod 3 to the measure position opposite photo-cell 14. In a modification the rod 3 is moved pneumatically. The output of the photo-cell 14<SP>1</SP> (Fig. 3) is amplified by valve VI, and charges condensers C1 and C2 to operate a voltmeter 18, condenser C2 being subsequently discharged by the operation of a switch 17. Specification 697,879, [Group XXXVI], is referred to.
Patent GB-378117-A (GB)
Title: Improvements in or relating to vaccum chambers for use in sealing metal containers
IPC: B23K1/14
Filed: 1931-05-16
Abstract: 378,117. Applying closures in vacuo. FRASER & SON, Ltd., J., Millwall Boiler Works, Millwall, and HIPKINS, B. E., 81, Devonshire Road, Forest Hill, both in London. May 16, 1931, No. 14566. [Class 125 (ii).] In a vacuum chamber 10 in which metal containers are sealed by a universally mounted soldering iron 31 or equivalent device when the air content of the chamber has been reduced by a vacuum pump, the vacuum being then released for discharging the batch of containers and insertion of the next batch, the chamber 10 has a pair of doors 21, 22 which open and close by sliding in their own planes, guiding means being provided whereby each door is directed into close contact with the opening of the chamber only during the last portion of the closing movement. In the construction described, the doors 21, 22 are supported by cables 44, 45 from a shaft 38 so as to be simultaneously operable by turning a wheel 46, a counterweight 40 being provided of smaller weight than that of the doors but acting on the shaft 38 at a greater radius. The guiding means for the doors consists of plates 26 secured to the sides 12, 13 of the chamber and each having a slot 24, 25 the lower end of which is inclined inwardly towards the chamber. Pins or rollers 28 carried on projections 27 on the doors move in the slots. A rubber or other resilient washer 29 extends around the margin of each door. The chamber has a window 35, and a cock and union nut 32 for connection to the evacuating apparatus. In operation, the containers are disposed on trays which are passed on runners 47 into the chamber, and leave on the opposite side. In a modification, link and lever mechanism is provided for operating the doors.
Patent GB-664859-A (GB)
Title: Improvements in and relating to change speed gears
IPC: F16H29/06
Filed: 1949-05-31
Abstract: 664,859. Variable-speed gearing. ZYCH, Z. May 31, 1949, No. 14604/49. Class 80 (ii). A variable-throw eccentric 4 gyrates a ring 9, prevented from rotating by an Oldham coupling connection 10, 12, 13 to fixed members 15, and having pivoted thereon pawls 17 co-acting with a driven ratchet wheel 18. A sliding wedge 8 operates in an arcuate slot in the eccentric 4 to displace it relative to a driving-shaft 2 about a pivot pin 5 mounted therein, the wedge 8 being mounted on a rod 6 axially movable by a knurlheaded bolt 7 screwing into the shaft 2.
Patent GB-919181-A (GB)
Title: Improvements in or relating to the manufacture of ceramic material
Inventor: DAVIES FRANK WILLIAM
IPC: C04B35/622
Filed: 1959-04-29
Abstract: Threads of ceramic material are formed by extruding a viscous paste, of a composition which will produce the ceramic material on heating, through an orifice on to a surface moving at a uniform speed in the direction of extrusion so that the extended paste forms a thread resting on the surface, drying the thread at a temperature below the boiling point of any liquid constituent while resting on the surface, and heating the dried thread to mature it and form the ceramic material.  Preferably the particle sizes of the solid constituents of the paste are small compared with the diameter of the extrusion orifice, e.g. about 3a  to 4m  when the diameter of the orifice is 50m .  Preferably also the surface on which the thread is formed is heated to accelerate the drying of the thread.  The surface should not be such that the dried thread adheres to it, a polished steel surface being suitable in this respect, and it may conveniently be of cylindrical form and rotated about its axis whilst a progressive relative axial displacement between the surface and the orifice is effected so that the thread is formed on the surface as a helix.  A suitable composition comprises the following ingredients, in the weight proportions indicated, thoroughly mixed with 1/4 % by weight of "Totanin" (Registered Trade Mark) as binder and plasticiser and sufficient water to form a smooth viscous paste:- zirconia 60%, steatite 15%, bentonite 11%, china clay 7,5% and amblygonite 6,5%. Such threads, broken up to a 1/4 inch or less in length, may be used as a filler for other ceramic compositions.  Threads of the above composition in the proportion of 20% by weight may be added, for example, to a mixture of the following ingredients:- petalite 69%, amblygonite 19%, felspar 8% and bentonite 4%, and the mixture shaped and fired after adding quantities of water, oil, and plasticiser in the usual way.  When the threads have a higher thermal expansion coefficient than the second ceramic material, as in the above example, a body of considerably increased tensile strength as compared with the unfilled second ceramic material is obtained.
Patent GB-570995-A (GB)
Title: Improvements in or relating to scraper or push-plate conveyors for use in mines
IPC: E21F13/06
Filed: 1943-09-07
Abstract: 570,995. Mining-machines. ANDERSON, A., and ANDERSON, BOYES, & CO., Ltd. Sept. 7, 1943, No. 14619. [Class 68 (i)] In a mining-machine comprising a scraper or push-plate conveyer circulating in a substantially horizontal plane to load coal &c., coal &c. cutting means are provided comprising a shearing cutter chain circulating in a plane transverse to the plane of circulation of the conveyer chain. The conveyer comprises a chain 10 carrying feathering scrapers 13 moving over a base-plate 14 as in Specification 548,455, [Group XXX] ; the shearing chain 15 is driven from the conveyer through bevel gearing 16 driven from either of the guide sprockets 11, 12 of the conveyer chain. The shearing cutter may be swung in a vertical plane, and for flitting, it may be movable to overlie the conveyer.
Patent GB-1178980-A (GB)
Title: Colour Television Display System
IPC: H04N9/18
Filed: 1967-03-30
Abstract: 1,178,980. Cathode-ray tube displays. RCA CORPORATION. 30 March, 1967 [6 April, 1966], No. 14687/67. Heading H4T. In a colour television receiver utilizing a trigun shadow-mark picture tube 13 (Fig. 1) provided with a deflection yoke 16 producing minimum pin-cushion distortion and having substantially no coma but having some negative horizontal isotropic astigmatism so that, when the screen is viewed from a position above the tube axis, e.g. position 17, unequal top and bottom residual pin-cushion distortion is present the effect of the latter is reduced by positioning the tube such that the electron gun which is normally positioned on the vertical axis of symmetry of the tube is vertically below the tube longitudinal axis as shown in Fig. 2B in respect of the blue gun 18 instead of above such axis as in the prior art shown in Fig. 2A.
Patent GB-585226-A (GB)
Title: Shock absorbing bearing
IPC: G04B31/04
Filed: 1944-08-01
Abstract: 585,226. Bearings. MORF, E. Aug. 1. 1944, No. 14690. Convention date,. April 21. Addition to 578,224 [Class 12 (i)] The shock absorbing bearing comprising a bearing proper (apertured jewel 7) mounted in a member 8 having an axial extension 9 by which it is centred in a housing (recess 2 in a bridge plate 1) and subject to the influence of a restoring spring 14 as described in the parent Specification is arranged so that the axial centring extension 9 rests on the bottom 4 of the recess 2 with circular line contact only. As shown in Fig. 1 this line contact is given by the end face 10 of the centring extension being slightly coned. The centring member is also made of conical form on its extension body 9 to allow tilting on the occurrence of shock as shown in Fig. 2. The centring member is restored by the spring 14 acting on a cap jewel 15. Instead of the end face 10 of the centring extension 9 being coned the recess 2 may have its base 4 coned. Specification 513,454 is referred to.
Patent GB-220409-A (GB)
Title: Tools for grinding in the valves on internal combustion engines
IPC: B24B15/08
Filed: 1923-06-05
Abstract: 220,409. Hales, J. June 5, 1923. Screwdrivers.-A tool for grinding-in valves comprises a bush 1, which is screwed in an opening in a cylinder and carries a bolt 2 passing through a slot in a lever 3. The lever has therein countersinkings A to receive the end of a spindle 4, which at its lower end is shaped like a screwdriver to engage the valve and is oscillated by a lever 5, pressure being applied by the lever 3.
Patent GB-455201-A (GB)
Title: Improvements in or relating to microscopes
IPC: G02B21/00
Filed: 1936-05-25
Abstract: 455,201. Microscope stands. LEITZ GES., E., Optical Works, Wetzlar, Germany. May 25, 1936, No. 14703. Convention date, June 3, 1935. [Class 97 (i)] A microscope A is carried by an arm D which is rotatable about an axis F, adjustable on a fixed pillar to pass through the object C under test, so as to allow the object, such as a screw - -thread to be observed at various angles. The axis F is supported on a bracket G vertically slidable on a pillar H, and the arm D is rotated about the axis F by rotating a knob K<1> carrying a spindle K which is traversed by a threaded nut L, a clamping screw J being provided.
Patent GB-1461910-A (GB)
Title: Heater
IPC: F24C5/08
Filed: 1973-10-16
Abstract: 1461910 Return stack heater SCHEU PRODUCTS CO 4 April 1974 [18 Sept 1973 16 Oct 1973] 43718/73 and 14714/74 Heading F4W An oil burning radiant heater comprises a reservoir 10 (which, in use, serves both as a fuel store and as a combustion chamberthe fuel oil in the reservoir being lighted), a stack 16 which acts as a radiator for hot gases therein and a heater return scoop 26 which returns a portion of the exhaust gases in the stack to the reservoir 10 via an elbow 36 and tube 39. The scoop 26 has a cylindrical body 28 extending to a point beyond the centreline of the stack, a cap 30 and an opening 32. The scoop opening provides a projected frontal area approximately one tenth the cross-sectional area of a cylindrical portion 22 of the stack above the scoop. The scoop has a projected frontal area approximately three times the projected frontal area of the scoop opening. The scoop may be of chromized steel. The upper part of the stack has a removable lid. The heater, instead of being an oil heater, may be a solid fuel radiant heater.
Patent GB-1126843-A (GB)
Title: Reversible latch assembly
IPC: E05B55/00
Filed: 1967-03-31
Abstract: 1,126,843. Latches. VON DUPRIN Inc. 31 March, 1967 [4 April, 1966], No. 14764/67. Heading E2A. A latch assembly comprises a case 10 and a latch bolt structure having a stem 22 and a head 28 of generally cylindrical form but having at least one chordal face 29 or 30, a removable face plate 15 on the case, the inner surface of the face plate being formed to provide a cylindrical inwardly extending barrel 19 concentric with the axis of the stem 22 and receiving, supporting and guiding the head, a removable finish plate 38 overlying the face plate, the finish plate being formed with an aperture 41 registerable with the barrel 19 and formed with opposite chordal boundaries 42, 43 selectively cooperative with the chordal face of the bolt head to restrain the head against turning movement. As shown, the head is screwed on to the stem 22 and is retained hereon by a pin 36 which cooperates with a flat 34 on the stem to permit rotation of the head between positions on the stem 180 degrees apart, the head being retained in either of these positions by subsequent fitting of the finish plate 38. In another arrangement, Figs. 3 and 4 (not shown), the head is a sliding fit on the stem and is retained hereon by cooperating pins and grooves.
Patent GB-742789-A (GB)
Title: Improvements in or relating to television receivers
Inventor: BULL ERIC WILLIAM
IPC: H04N3/34
Filed: 1952-06-12
Abstract: 742,789. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 12,1953 [June 12, 1952], No. 14776/52. Class 39 (1). In a cathode-ray tube the spot formed on the screen is elongated with its major dimension transverse to the picture lines when the focus control is adjusted to either side of an intermediate position. In the intermediate position where electrons approaching the screen in two planes at right angles focus at equal distances before and behind the screen, the spot is circular. In this position the current through spot elongating coils 1 and 2 is zero. On moving the focus control 4, 3 being the focusing coil, through the intermediate position, the current through coils 1 and 2 is reversed. Coils 1 and 2 may be in parallel with one another. A resistance may be inserted in the circuit in place of the coils, and the potential difference across the resistance amplified and applied to the coils. The spot may be elongated electrostatically instead of electromagnetically. Specification 665,096 is referred to.
Patent GB-226773-A (GB)
Title: Improvements in covers for springs
IPC: F16F1/24
Filed: 1924-06-19
Abstract: 226,773. Debenedetti, G. Dec. 28, 1923, [Convention date]. Addition to 224,200. Gaiters.-A cover for a laminated spring comprising a transversely corrugated receptacle of channel section, as described in the parent Specification, is formed by two channel-shaped members 1, 11 of sheet metal or other rigid material fitted one over the other, the parts being held together by staples or straps, or by wire rings 12, and a corrugated band 13 of a more rigid or thicker material than that of the cover preferably being interposed. The parts 1, 11 may be corrugated throughout their lengths, or they may have smooth intermediate portions or end portions to receive the end packing 9. Three or more corrugated parts may be fitted one over another in the same manner.
Patent GB-380778-A (GB)
Title: Improvements in and relating to the production of separation negatives for colourprinting from photographic regularpattern colourscreen negatives
IPC: G03C7/04
Filed: 1931-05-20
Abstract: 380,778. Colour photography. LAUDER, W. DE L. and BECKERT; F., 160, New Bond Street, London. May 20, 1931, No. 14860. [Class 98 (ii).] Separate colour record printing negatives are prepared from a master colour screen negative by the use of a very thin stop-out screen. In one method, the master negative is soaked in a 1/1 glycerine-water solution and is brought into contact and alignment with a stop-out screen made on a very thin celluloid or other flexible film ; an emulsion plate, sensitized with bichromate, is exposed behind the film. According to a second method, the stop-out screen pattern is printed upon a plate sensitized with a 2 per cent solution of potassium bichromate, which is washed, developed, re-washed and re-sensitized with a 4 per cent bichromate solution ; after drying, the plate is registered with the master negative and again exposed. In a third method, the stop-out screen is printed in register on the master negative in greasy ink and a plate sensitized with 3-4 per cent bichromate exposed thereunder to obtain a colour record negative. The ink screen is then removed and the process repeated for the other colour record negatives.
Patent GB-897265-A (GB)
Title: Improvements in apparatus for feeding webs
IPC: B65H23/34
Filed: 1959-05-01
Abstract: 897,265. Automatic control systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 1, 1959 [May 1, 1958], No. 14892/59. Class 38 (4). [Also in Groups XVI and XXXVIII] Curvature is removed from a travelling web of paper by adjusting the position of upper and lower knife-edges relative to the web in accordance with any residual curl of the web as it is drawn under tension between two guides. A web of paper 12 is drawn by a drive roller 22 between friction rollers 14, 16 and over guide rollers 18, 20. Guide shoes 19, 21 bear against the web and define a fixed feed-path despite any eccentricities of the guide rollers. Any residual curl of the web between the shoes 19, 21 is detected by a pivoted fork 26 coupled to a differential transformer 34. The output of transformer 34 (which is energized by an oscillator 42) is amplified at 44 and passed to a phase-sensitive detector 48 which controls a reversible motor 56 via an amplifier 52 and saturable transformer 54. The motor 56 adjusts the upper and lower knife-edges 60, 62 to remove the curl. Excessive integrated errors operate an alarm and indicator (see Group XXXVIII). Specification 881,966 is referred to.
Patent GB-973511-A (GB)
Title: Aqueous fertilizer suspensions and a process for their preparation
IPC: C05B11/14
Filed: 1962-04-17
Abstract: An aqueous fertilizer suspension is prepared by oxidizing ammonia to nitrogen oxides and contacting these with an aqueous slurry of a calcium-containing compound from the group: phosphate rock, limestone, and dolomite, or a mixture of two or more of the said calcium compounds, the aqueous slurry having a weight ratio of water to calcium compound in the range 0.5:1 to 3:1.  The temperature of the slurry may be from 50 DEG  F. to 80 DEG  F. and it may flow through an absorber countercurrently to the mixture of nitrogen oxides, previously water-cooled.  Excess nitrogen oxides in the acidulated slurry may be stripped therefrom. Part of the product obtained may be cooled to 80 DEG  to 200 DEG  F. and recycled to the absorber for further contact with nitrogen oxides. At least part of the aqueous slurry of calcium-containing compound may be fed into the recycle stream prior to entry to the absorption unit. After withdrawal of the recycle stream, if any, additives (e.g. ammonia, calcium carbonate, muriate of potash and trace elements) may be added to the fertilizer suspension. A magnesium or aluminium salt, e.g. magnesium sulphate, may be added prior to addition of ammonia in order to prevent reversion of phosphate to insoluble forms on neutralization.
Patent GB-395846-A (GB)
Title: Improvements in or relating to multi-cylinder two cycle oil engines
IPC: F01L3/20
Filed: 1932-05-26
Abstract: 395,846. Supplying charge ; valves. CROSSLEY, SIR K. I. and CARTER, H. D., c/o Crossley Bros., Ltd., Openshaw, Manchester. May 26, 1932, No. 14941. [Classes 7 (ii) and 7 (vi).] In a multicylinder twostroke oil engine in which the charge is supplied by a pump through a passage a, extending along the row of cylinders, and non-return valves, blocks d, housing the valves, are removable along their retaining studs e through doors g. Separate blocks and doors are provided for each cylinder, and additional doors m may also be provided. The valves comprise spring-pressed discs.
Patent GB-612191-A (GB)
Title: Improvements relating to apparatus for operating devices having a negative resistance characteristic from an alternating electric current supply circuit
IPC: B23K9/10
Filed: 1946-05-17
Abstract: 612,191. Phase-changing; supply systems for lighting or welding arcs. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. May 17, 1946, No. 14960. [Classes 38 (ii) and 38 (iv)] A load having a negative resistance characteristic, such as an arc lamp or welding device is fed from a single phase A.C. supply through a phase converter and rectifier, with the stabilizing ballast impedance connected to the supply side of the phase converter. The ballast impedance comprises an inductor 8 variable by tappings 10, and a condenser 7 of the kind described in Specification 473,368, connected across supply terminals 9. The 1-3 phase converter is combined with a transformer 1 having delta connected primary windings 2, 3, 4, of which 3 is connected across condenser 7, and 2 and 4 have an inductor 12 and a condenser 13 connected across them respectively. Three phase-displaced E.M.F's. are thus induced in the star-connected secondaries which supply arc lamp 16 through rectifiers 15. The current supplied may be varied by operating switches 17 to connect one or more auxiliary condensers 11, across reactance 8 or across condenser 7 and reactance 8 in series. Modifications are described in which the primary transformer windings are not connected to each other, the windings 2, 4 forming closed circuits with inductance 12 and condenser 13, Fig. 2 (not shown) and in which inductance 12 is replaced by an air-gap in the core limb carrying winding 2, Fig. 3 (not shown). In the latter case, winding 2 may be omitted, Fig. 4 (not shown). The advantages of supply through a phase converter and rectifiers are described in Specification 518,632.
Patent GB-1452687-A (GB)
Title: Hand casting fishing reel
IPC: A01K89/08
Filed: 1974-04-04
Abstract: 1452687 Fishing reel G H LLEWELLIN 27 March 1975 [4 April 1974] 14969/74 Heading A1A [Also in Division Dl] A hand casting fishing reel comprises a frusto conical member 2 attached to or integral with, at its narrower end, a disc 3 of diameter greater than that of the narrower end of member 2 so as to form an annular channel 4 to receive fishing line, and a hollow section within member 2 provided with an annular rib 6 to engage with the fingers of a hand inserted through a central hole in the disc 3. The reel may be of plastics, metal or wood. During casting, line releases itself and freely runs over the wider end of member 2 whilst the reel held in the hand.