baber/WOPTO huggingface dataset:
Patent GB-916744-A (GB)
Title: Solid electrolytic capacitors
IPC: H01G9/00
Filed: 1959-02-05
Abstract: 916,744. Capacitors. ARIES, R. S. Feb. 5, 1959 [Feb. 11, 1958], No. 4117/59. Class 37. A solid electrolytic capacitor is constructed by compressing and sintering a powdered anodizable metal (e.g. tantalum) into a porous anode body having a wire of e.g. tantalum inserted therein, which is anodized to produce a dielectric film on the particulate surfaces, subjected to high vacuum to remove gases therefrom, saturated with an aqueous solution of manganous nitrate in vacuo, removed from vacuum, dried, and pyrolysed in a furnace at 400‹ C. The evacuation, saturation, drying, and pyrolysing are repeated at least 3 times to secure a uniform coating of manganese dioxide, and the anodization and coating are again repeated, after which the body is ground and sand-blasted to size. A conducting layer of carbon is applied from solution and covered with a sprayed copper, nickel or silver cathode layer. Leads are soldered to the anode and cathode, and the capacitor is encased in dielectric lacquer. Anode material may alternatively be aluminium, tungsten, niobium, hafnium, zirconium, titanium. Specification 916,743 is referred to.
Patent GB-1449322-A (GB)
Title: Magnetic brush development apparatus
IPC: G03G15/09
Filed: 1974-01-29
Abstract: 1449322 Developing electrostatic latent images FUJI XEROX CO Ltd 29 Jan 1974 [5 April 1973] 04211/74 Heading G2H A magnetic brush developing apparatus comprises at least two developer-applying magnetic brush rollers, one comprising a rotatable sleeve 10 surrounding a fixed, magnetic core having a single direction of magnetic polarization, and the other roller, which in use receives developer from the first roller, having a rotatable sleeve 15 and a fixed core with multiple directions of magnetic polarization.
Patent GB-372800-A (GB)
Title: Mechanical stokers for locomotives
IPC: F23K3/00
Filed: 1931-02-11
Abstract: 372,800. Mechanical stokers. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Lower Stoker Co. ; Wabash Building, Pittsburg, U.S.A.) Feb. 11, 1931, No. 4251. [Class 51 (i).] A mechanical stoker for locomotives comprises a fuel transfer conduit 11 mounted beneath the deck 8 of the tender and a fuel elevating conduit 13 mounted on the locomotive and extending from a point vertically beneath the tender deck to a firing opening in the locomotive backhead 4, the forward end of the transfer conduit being above the rear end of the elevating conduit so that fuel can pass freely to the elevating conduit. The conduit 11 is mounted in the water compartment 21 of the tender 7 by means of a bracket 35 secured to the floor of the compartment, an integral flange 29 riveted to the front sheet 28 of the tender and by integral flanges 30, 31, 32 at the top of the conduit riveted to the floor of the fuel bunker. A conveyer screw 23 within the conduit receives fuel through an opening 22, crushes it against a vertical wall 24 and transfers it to the elevating conduit 13 whose rear end lies below and to one side of the discharge outlet of the conduit 11. The opening 22 is controlled by slide plates 38, 39 working in tracks 40, 41 having notches 42 to allow accumulating coal dust to fall into the conduit. The conveyer 23 is driven by an engine 45 bolted to an outwardly extending flange 46 and connected by a shaft 47 extending parallel to the conduit, to a gear case 36 integral with the conduit and with the bracket 35. Blind bushings such as 61, 62 are formed in the gear case and gear case cover 59 to serve as bearings for the shafts in the case. The shaft 47 is enclosed in a tube 64 whose ends are forced over bearings 50, 51 and welded thereto to make watertight joints. A similarly protected. shaft 73 extending from the gear case and through the front flange 29 drives a screw conveyer 66 in the elevating or riser conduit. 13. The conduit 13 is connected at its forward end to a firedoor conduit 12 by a ball joint 16 and at its rear end to the transfer conduit 11 by a universal joint formed by a ring 17 loosely mounted between the conduit 11 and a clamp 18 and hingedly connected to the conduit 13 by pins 19, 20. The conduit 12 is formed as a spout whose upper and lower boundaries are each curved in the form of an upwardly convexed arch. As the fuel falls from the outlet 67 of the conduit on to the distributing table 68 it is.distributed by steam jets 79 in communication with passages 80 in the arched bottom of the conduit and may be directed by adjustable vanes 75.
Patent GB-995858-A (GB)
Title: Improvements in oxygen top blowing converters
IPC: C21C5/40
Filed: 1962-02-05
Abstract: 995,858. Converters. YAWATA IRON & STEEL CO. Ltd., and YOKOYAMA ENGINEERING CO. Ltd. Feb. 5, 1962 [Feb. 10, 1961], No. 4298/65. Divided out of 995,857. Heading F4B. An oxygen top blowing converter 2 has a hood 1, e.g. forming a cooler for waste gases, spaced by a gap 3 from the converter mouth with an annular ring 4, to which inert gas such as by-product nitrogen is supplied, surrounding the hood bottom to direct the inert gas downwardly to form a gas curtain 5 sealing the gap against ingress of air and escape of waste gases. The hood may include a vertically movable skirt 6 having a water seal 7 between it and the rest of the hood for adjusting the height of the gap.
Patent GB-678267-A (GB)
Title: Flow control valve
IPC: G05D7/01
Filed: 1948-02-13
Abstract: 678,267. Fluid-pressure servomotor-control systems. GARRETT CORPORATION. Feb. 13, 1948 [March 3, 1945], No. 4313/48. Class 135. A flow control valve has a valve member 30 actuated by a pressure responsive member such as the diaphragm 10 having a chamber D on one side in free communication with the high pressure side of the valve and a chamber C on its other side in restricted communication with the high pressure side of the valve and in communication with the outlet side of the valve through a pilot valve 19 actuated by a further pressure responsive member such as the diaphragm 8 movable in accordance with the velocity head of the incoming fluid. The figure shows an axial flow arrangement suitable for the air inflow control of an aircraft cabin. The diaphragm 8 separates a chamber B subject to the static inlet pressure through a port 12 from a chamber A subject to the combined static and dynamic pressure head through an opening 7 in a conical nose 6 forming part of a core member 4 spaced from the wall 32 to form an annular duct 5. The loose-fitting annular valve 30 in the outlet 3 and also the diaphragm 10 are clamped to a hollow stem 16 opening into the outlet 3. The stem 16 has a port 17 controlled by the valve 19 and opening into the chamber C. The combined static and velocity head in the duct 5 acts in the chamber D through a scoop tube 26 with an orifice 27 whilst the static head is communicated to the chamber C past an adjustable needle valve 57. The hollow stem 16 is guided in partitions 9, 11 and forms a guide for the valve 19 the stem of which has a head 20 maintained against the diaphragm 8 by a light spring 21. A further spring 56 acts on the diaphragm 10 in a direction to close the main valve 30.
Patent GB-353831-A (GB)
Title: Improvements in cooking stoves
IPC: F24C15/10
Filed: 1931-02-12
Abstract: 353,831. Stove lids. CUSTERS, F. W., 31A, Gereonswall, Cologne, Germany. Feb. 12, 1931, No. 4451. [Class 126.] The lid covering a utensil opening in a cooking-stove hot-plate is provided with air supply openings so arranged that by rotating the lid they may deliver air either to the flue, to check the draught, or to the opposite side of the firespace to increase combustion. In the construction shown, two diametrically-opposed groups of air openings 4, 5 are provided in the hot-plate ring 2, the former being away from, and the latter adjacent to, the flue 7. The central disc 3 of the lid is formed with a flange having a cut-away portion 6, so that by rotating it either group of openings may be covered by the flange and the other exposed. Depending heat-accumulating projections 9, 10 are formed on the lid, the latter being apertured for the passage of air to the fire.
Patent GB-621545-A (GB)
Title: Improvements relating to axial compressors and turbines
IPC: F01D5/06
Filed: 1947-02-17
Abstract: 621,545. Turbine and compressor rotors. LOMBARD, A. A., VINCENT, K. I. C., and MORLEY, F. W. W Feb. 17, 1947, No. 4587. [Class 110 (iii)] A turbine or compressor rotor is built up of a number of thin discs 12 with flanged bladecarrying peripheries 16 and thin hub-like extensions 18, 19. The extensions 18 have a spline engagement with the shaft 10 and the extensions 19 have a close fit. If the discs are made of light alloy, the extensions are reinforced with steel rings or bushes 20 shrunk on or into the extensions. The shaft is stepped to permit assembly. The peripheries 16 are spigoted to distance rings 23; in the inlet portion the distance rings embrace both peripheries and in the remainder one end of each ring is embraced by the disc periphery. The discs are clamped between end pieces 13, 15 with coned webs so that centrifugal forces on the end pieces will tighten the assembly. The clamping is effected by a nut 27 on the shaft which holds a stepped washer 30 against a shoulder 32 on the shaft and the tightness of the assembly is determined by the selected thickness of a washer 31. Specification 621,418 is referred to in the Provisional Specification.
Patent GB-1149823-A (GB)
Title: Mechanical device for storing binary information
IPC: G06C13/00
Filed: 1967-01-31
Abstract: 1,149,823. Mechanical data storage device. ING. C. OLIVETTI & C. S.p.A. 31 Jan., 1967 [9 Feb., 1966], No. 4620/67. Heading G4B. A mechanical data storage device for storing binary information comprises an array of cells 6 each containing a ball 8 movable between seats 9, 10, the cells 6 being open on one side whereby a sensing device may sense in both seats of each cell simultaneously. The cells are formed in an elastic sheet backed by a rigid plate 12 and faced by a plate 11 formed with rectangular openings 13. The sensing device consists of fingers 15, 16 pivoted on a member 19. The latter is pivoted at 21 to a pivoted lever 22. A rod 29 engaging the member 19 is adapted to follow vertical movement of the member 19. The fingers 15, 16 are aligned with the seats 9, 10 of a cell by a guide plate 20. In operation, the lever 22 is pivoted by a cam 25 to lower the member 19. The finger 16 engages the ball whereby the member 19 pivots counterclockwise to move the rod 29 leftwards.
Patent GB-822553-A (GB)
Title: Electric low-pressure discharge tubes, more particularly fluorescent lamps
IPC: H01J61/067
Filed: 1956-02-15
Abstract: 822,553. Cathode materials. PATENTTREUHAND-GESELLSCHAFT FœR ELEKTRISCHE GLUHLAMPEN. Feb. 15, 1956 [Feb. 23, 1955], No. 4797/56. Class 39(1). A gas-filled low pressure discharge tube such as a fluorescent lamp has electrodes which have an emissive coating of alkaline earth metal oxides containing also about 0À05-1À5% of one or more of those alkali metals whose work function is greater and whose ion radius is smaller than the corresponding values for the alkaline earth metal responsible for the emission. With barium-containing emissive material, potassium, sodium, or lithium may be used. One method of preparation is by precipitating alkaline earth metal tartrate from the soluble nitrate with sodium potassium tartrate. The tartrate is then converted into the carbonate by heating in oxygen. This method produces a very firm incorporation of the small alkali addition. Another suitable method is to add alkali carbonates to the barium-strontium tartrates precipitated by treating soluble barium-strontium compounds with ammonium tartrate. Specifications 740,478 and 787,059 are referred to.
Patent GB-1517915-A (GB)
Title: Unloading device
IPC: B60P1/64
Filed: 1975-02-05
Abstract: 1517915 Vehicle unloading device R K RUSSELL 10 Sept 1975 [16 Sept 1974 5 Feb 1974] 40197/74 Heading B8E A vehicle unloading device comprises cranked levers 20 pivotally mounted at 40 on guide members 3 to run on tracks 1 on either side of the vehicle platform. The levers 20 are connected by a beam 10 supporting a load beam 9 along which a saddle assembly 24 having a support beam 25 for a lift device with forks 12 is traversable by a ram R3, Fig. 5, acting on a chain drive 34. Initial lift with an element of rearward movement to separate the load is effected by a ram R2 which rocks bell crank levers 18 supporting the bearing 10 while the main lift or lowering is caused by a ram (R1), not shown, driving a chain engaging a sprocket 51 on an arm which allows the levers to pivot to the Fig. 10 position. Once raised from the vehicle the load is traversed clear of it by the ram R3 and after depositing it on the ground to relieve the weight on the forks they are withdrawn, Fig. 12, by extension of the load beam 25 by the cylinder R4. The guide members can be moved along the vehicle platform by a rope and winch drive.
Patent GB-606000-A (GB)
Title: Improvements in and relating to continuous feed kinematograph apparatus
IPC: G03B41/08
Filed: 1946-02-15
Abstract: 606,000. Kinematograph apparatus. MAYTUM, J. A., and SMITH, L. Feb. 15, 1946, No. 4864. [Class 97 (i)] In continuous feed apparatus a toothed wheel driven only by engagement with the film is coaxial with, but laterally offset from, an optically compensating prism driven thereby and a fixed prism deviates the light path to include the film and the compensating prism. In the projector shown, the film 31 is driven by a friction roller 21 with a rubber surface and a pressure roller 22 and is wound on to a take-up spool with slipping belt drive 27. The roller 21 is driven by the motor 23. The film is drawn round the sprocket 20, carrying the optical compensator, and over a film guide 14 past the projection aperture 15 from the spool 25. The sprocket 20 is thus in line with the aperture 15 and the rhombic prism 16 produces the sideways displacement of the light beam so that it passes through the compensator 17 and projection lens 18. The compensator may be a square prism as in Specification 597,090, or a polygonal ring of plates. In the latter case, one end of the rhombic prism is within the ring of plates. A shutter, pivoted round the axis of the sprocket 20, has a spring urged tooth engaging a film perforation and carrying it across the aperture 15 at the time of changeover between succeeding facets of the compensator. The tooth then strikes a dimple on the guide 14 and the shutter is released to fly back under spring action to engage the next film frame. This movement is damped frictionally or magnetically or by a pawl on the shutter arm engaging a toothed wheel on the sprocket shaft. An adjustable roller may be provided in contact with the film where it passes over a recess in the film guide by which the length of the film path may be varied for framing.
Patent GB-336923-A (GB)
Title: Improvements in and relating to the manufacture of sheets of silica
IPC: C03B19/09
Filed: 1930-02-13
Abstract: 336,923. British Thomson-Houston Co., Ltd., (Assignees of Sullivan, J. H.). Feb. 14, 1929, [Convention date]. Forming silica-glass articles. - Flat sheets of fused silica, which are suitable for window panes are made by fusing fragments of crystalline silica in a vacuum, allowing the silica while plastic to assume by gravity the form of a flat sheet., and then causing the silica to harden under gaseous pressure. The fusion of the silica is carried out in an electric furnace, similar to that described in Specification 240,489, which comprises a heavy-walled container 2 provided with a cover 3 and a water jacket 10. A pipe 5 enables the interior of the container to be evacuated or to be filled with gas under pressure. Inside the container there is a refractory heater 12 within which the silica fusions are placed upon forms 13. Each form consists of a plate 20, Fig. 2, of graphite, or any other suitable refractory material, upon which are placed vertical strips 21 held in position by pegs 22. The strips are notched at 23 to permit gases to escape, and a number of the forms are stacked on one another when placed within the heater. Chips of quartz crystals 24 are placed within the enclosure formed by the strips 21, and when the stacked forms are arranged within the heater, the interior of the furnace is evacuated as the temperature is increased to about 1750 C. The silica becomes plastic and spreads by gravity uniformly over the support 20. A gas pressure is then applied to the silica either by permitting gases to accumulate within the container to about, atmospheric pressure, or by admitting a gas, such as nitrogen, under a pressure of about 200 pounds per square inch. The pressure of the gas on the silica fusion causes the disappearance of minute cavities and the congealed material is clear and transparent.
Patent GB-373148-A (GB)
Title: Improvements in coin delivery machines
IPC: G07F5/24
Filed: 1931-02-16
Abstract: 373,148. Money-delivering apparatus. ROTHERHAM, G. H., Eger, Czecho- Slovakia. Feb. 16, 1931, No. 4897. Convention date, Sept. 19, 1930. [Class 116.] In order to deliver a combination of different denominations of coins through the depression of a single key, a flexible band 22 passes under rollers 21 which are carried on shafts 16 .. 20 supported by arms 15 on shafts 9 .. 13 journalled in the casing, the position of the band being so adjusted that on depression of a key and consequent tensioning of a band, certain rollers are moved to actuate the corresponding ejecting mechanism. Each of the shafts 9 .. 13 is associated with one of a number of coin magazines 4 and has an arm 14 carrying a bar 8 connected to one arm of a spring-controlled lever 7, the other arm of which operates an ejecting-member 6. One end of each band is secured to the machine casing, and the other to an arm 24 connected by a bar 25 to a spring- controlled bell crank connected to a key marked with the combination which the band is adjusted to deliver. In another form, the flexible band is arranged to pass above the appropriate rollers 21 which are thus lowered, on tensioning of the band, to actuate the ejectors.
Patent GB-729511-A (GB)
Title: Improvements in and relating to table lamps
Inventor: WILLIAMS-THOMAS REGINALD SILVE
IPC: F21S6/00
Filed: 1953-02-23
Abstract: 729,511. Table lamps. S.&W. (LIGHTING), Ltd. Feb. 23, 1954 [Feb. 23, 1953], No. 5065/53. Class 75 (3). A table lamp comprises a base B and a shade S made integrally and united to one another by a neck 7 adapted to mount a lampholder. The lampholder may be removably secured by a clip. The shade is in the form of a cone with the wider end united to the neck by a flange 6. The lamp may be made from glass, ceramic or plastic material.
Patent GB-932340-A (GB)
Title: Printed documents sensitive to attempted alteration
IPC: B42D15/00
Filed: 1961-02-17
Abstract: A cheque or the like is printed in at least two different inks to prevent fraud (see Group XV), one ink being water-soluble and lower alcohol and lower ketone insoluble and the other ink being water-insoluble and lower alcohol and lower ketone soluble, said lower alcohol and lower ketone containing not more than eight carbon atoms per molecule.  The former ink includes 1 to 2 parts by weight of Tartrazine yellow (i.e. the sodium salt of benzene-azopyrazolone carboxy-disulphonic acid) and 20-25 parts by weight of a vehicle. The vehicle consists of 2 to 4 parts by weight of glycerine and 1 part by weight of potato dextrine.  The latter ink comprises 1 part by weight of a sulphonated condensation product of a phthalocyanine blue and guanidine and 1 to 3 parts by weight of a vehicle (e.g. octylene glycol or butylene glycol).  Hydroabietyl alcohol may be added to the vehicle to increase its viscosity.  Alternatively, the latter ink comprises 40 to 60 parts by weight of oxidized linseed oil as a vehicle, 30 to 50 parts by weight of magnesium carbonate as an extender and 5 to 10 parts by weight of a toner such as a monosulphonic acid derivative of phenylated rosaniline (alkali blue). A part of the cheque may be printed in a third ink which is bleachable, water-soluble and lower alcohol and lower ketone soluble, comprising 50-70 parts by weight of sulphonated castor oil as a vehicle, 20-50 parts by weight of aluminium hydrate, calcium silicate, or magnesium silicate as an extender and 6 to 12 parts by weight of a dye of the diaminotriphenylmethane group (e.g. Malachite Green).
Patent GB-336535-A (GB)
Title: Improvements in or relating to valves for oxygen containers or bottles
IPC: G05D16/06
Filed: 1930-02-17
Abstract: 336,535. Gas Accumulator Co. (United Kingdom), Ltd., (Assignees of Svenska Aktiebolaget Gasaccumulator). Feb. 16, 1929, [Convention date]. Pressure - regulating valves ; materials, special.-A valve member for use in connection with valves used on oxygen containers is composed of ebonite and has the contacting surface and part of the lateral surfaces provided with a thin metallic coating. The Figure shows the application of the invention to a known type of pressure reducing valve. This valve has a two part casing 7, 8 connected by ferrules 9 one of which carries the valve seat 2. The valve member 1 is housed in a recess 10 in a screwed plug 11 carried by a lever 12 pivoted at 13 and engaging a diaphragm 17 at 15. The diaphragm is adjustably loaded by a spring 20 and a spring 16 holds the bearing plate 15 in contact with the diaphragm.
Patent GB-714629-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J19/38
Filed: 1952-02-28
Abstract: 714,629. Typewriters. BIRCHMEIER'S SOHNE, A. Feb. 28, 1952 [March 30, 1951], No. 5284/52. Class 100 (4) A noise eliminating device for a typewriter carriage of which the intermittent advancing movement is controlled by a pawl 3 and ratchet 2 mechanism comprises a spring wire 17 completely encircling and in frictional engagement with an element on the ratchet shaft and operated as a resu't of, and during, return movement of the carriage for holding the pawl and ratchet temporarily disengaged. The spring 17 frictionally embraces the pinion 1 of the ratchet wheel 2, one end of the spring being formed with a trapezoidal eye larger than the part of the bridge 4 on which it is suspended. During clockwise movement of the ratchet wheel 2 the spring is urged in the position shown, but upon carriage return movement, the ratchet wheel 2 is rotated anti-clockwise and the spring rotated so that the end adjacent the pawl 3 bears thereon to push the pawl downwardly and disengage it from the ratchet wheel.