baber/WOPTO huggingface dataset:
Patent GB-415640-A (GB)
Title: Improvements in or relating to hydraulic shock-absorbers
IPC: F16F9/22
Filed: 1934-01-18
Abstract: 415,640. Non-return valves. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Jan. 18, 1934, No. 1764. Convention date, Jan. 20, 1933. [Class 135.] The outlet g from the pressure chamber b of an hydraulic shockabsorber is controlled by a manually-adjustable, conical valve o having a screwed shank n, the valve o being so associated with an excess-pressure valve p controlling a passage m or passages arranged in parallel with the outlet g that, on adjustment of the valve o, the pressure of the spring q on the valve p is simultaneously altered, for example, by means of a stop r on the shank n. The shock-absorber comprises a piston c adapted to be reciprocated in a cylinder a fixed to the frame of a vehicle by a cam d connected to an axle and by a return spring e. The controlling device is accessible through the filling opening w. In a modification, the screw n is arranged at right-angles to the outlet g and the valve p controls a passage through the screw in communication with the outlet g. In a second modification, the valve p is replaced by a disc - valve concentrically arranged relatively to the valve o and containing a plurality of passages communicating with the outlet g ; in this case the spring-pressure on the disc-valve may be additionally adjustable by a nut on the screw n.
Patent GB-1168110-A (GB)
Title: Keyboard Musical Instrument
Inventor: TIELAND MARTHA
IPC: G10H1/057
Filed: 1967-10-14
Abstract: 1,168,110. Electronic musical instruments. M. TIELAND. 14 Oct., 1967, No. 1792/69. Divided out of 1,168,109. Heading G5J. A single transistor common-emitter amplifier is adapted to be switched on by a key of an electronic musical instrument and is provided with a split resistor in the collector of the transistor, the junction of which is connected to earth through a capacitor 62 whereby the rise and decay times of the note produced by the instrument when the key is actuated are determined. Terminals 53 and 54 provide for inputs from tone sources which are connected through resistors 55 and 56 to the base of the transistor 51. The instrument is provided with a plurality of keys which each switch one of a plurality of such amplifiers. The keys actuate switches 59 to switch each amplifier on and charge up the capacitor 62 through resistor 60 enabling the rise time to be determined by this time constant. When switch 59 is turned off the voltage across capacitor 62 decays through resistor 61 which is selected to give the required decay time for each note. The decay time can be increased using a switch 63 to bring resistor 64 and capacitor 65 into circuit. All the switches 63 in a plurality of similar amplifiers can be mechanically coupled together and operated by a master switch.
Patent GB-917818-A (GB)
Title: Nickel base alloys
IPC: C22C19/05
Filed: 1960-01-19
Abstract: A nickel base alloy, suitable for use in parts of gas turbine engines where temperatures of up to 2000 DEG F. are encountered, has the following composition by weight:-  .Cr.6 to 17%, .W more than.5 to 20%, .Nb.0.25 to 3%, .Al.2 to 8%, .C.0.02 to 0.30%, .Co.2 to 15%, with .either B.0.001 to 0.2%, or .Zr.0.001 to 0.5%, or both, .with or without. .Ti.up to 4%, .Mo.up to 3%, .Fe.up to 5%, .Si.up to 1%, .Mn.up to 2%, and .Ni.the remainder, including any impurities e.g. N, H, Sn, Pb, and/or up to 0.5% of deoxidizes such as Ca and Mg.  The Ti content must not exceed the Al content, and the Cr content must not exceed 15% when Nb and Co exceed 1% and 5%, respectively, and W and Al are below 11% and 5%, respectively.
Patent GB-130378-A (GB)
Title: Improvements in Condensing Plant for Steam-turbine-propelled Vessels.
IPC: F01K15/04
Filed: 1918-02-05
Abstract: 130,378. Weir, G. & J., and Lang, C. R. Feb. 5, 1918. Feed-water, supplying and controlling.-Relates to a condensing plant for steam-turbine propelled vessels, shown in plan in Fig. 1, comprising a condenser c, a steam or water jet ejector c withdrawing air from the condenser, and a steamdriven boiler-feed pump p withdrawing condensate from the condenser and discharging it direct to the boiler, the supply of actuating steam to the pump p being controlled by the water-level in a float-box f in free communication with the condenser. In accordance with the invention, the air ejector e discharges either through a pipe y to the feed tank or through a pipe z to the circulating-water discharge d. A reciprocating feedpump p driven by a reciprocating steam-engine f is preferred; a rotary feed-pump driven by a steam-turbine which exhausts into the main turbine may be used. The feed-pump is arranged below the condenser so that a gravity head is obtained. The circulating-water pump is driven by an independent steam engine.
Patent GB-894843-A (GB)
Title: Improvements in the production and use of catalysts for the desulphurization of hydrocarbon oils
IPC: B01J27/04
Filed: 1960-01-20
Abstract: Sulphur and nitrogen are removed from hydrocarbon oils by passing the latter in the presence of hydrogen under atmospheric or elevated pressure and at elevated temperature over a catalyst containing at least one of the elements Mo, W and Cr, at least one of the elements Fe, Ni and Co, and an alumina/silica carrier.  The catalyst is prepared by impregnating the carrier with one or more solutions of salts of the said elements and of one or more aluminium salts, followed by drying and if desired calcining the impregnated carrier. An aliphatic alcohol containing 4-6 hydroxyl groups (preferably sorbitol, erythritol or mannitol but also e.g. arabitol, xylitol, dulcitol, iditol or pentaerythritol, or mixtures thereof) may be added to one or more of the said solutions.  Preferably the catalyst after calcining is heated for at least 2 hours at 525 DEG -700 DEG C. in an atmosphere of water vapour content not more than 5 vol. per cent.  The carrier may be a natural or synthetic material and in the example is a cracking catalyst of composition 88% silica, 12% alumina and of particle size 1-4 mm., which is converted to a catalyst containing per 100 parts by weight of carrier 11,2 parts MoO3, 4,4 parts CoO and 7,8, 10 or 11,7 parts added Al2O3.  The specified catalysts were used in hydrofining a 250 DEG -380 DEG C. boiling range Middle East straight-run heavy gas oil under conditions of 375 DEG  C., 35 atm. abs., S.V. 2 Kg./h./l. and a H2:oil ratio of 2000 1. (S.T.P.)/Kg.  Specification 894,844 is referred to.
Patent GB-909997-A (GB)
Title: Improvements in or relating to gas flow control mechanisms
Filed: 1959-01-20
Abstract: 909,997. Fluid-pressure servomotor systems. GREAVES, A. H. Jan. 20, 1959, No. 2139/59. Class 135. A gas control unit for a burner comprises a gas control valve 5 rigidly connected to two diaphragms 11, 6a of unequal effective area separated by a space 12 open to atmosphere and a distribution chamber 19 supplied with gas fed from the main inlet 2 via a passage 18 closed by a loose ball valve 18a and a passage 17 closed by a spring-loaded loose ball valve 24 and feeding a pilot burner 31 through passage 25, a control chamber 21 below a diaphragm 22 by passage 10a and a control chamber 6 below the diaphragm 6a by a bleed passage 10. The chamber 6 is connected to a number of control valves 35 such as thermostats and the space 21 is connected to further control devices such as a flame failure device as described in Specification 846,866 and a fusible plug to prevent overheating. A dead-weight loaded pressure regulating valve 7 may be provided in the inlet. In operation, when all of the control valves are closed and the burners extinguished, valves 5, 18a and 24 are closed and valve 20 connecting chamber 6 to atmosphere is open. To operate the unit the starter valve 24, which may be situated remotely from the main unit, is actuated manually or electrically to allow gas to enter the chamber 19 and then pass to the pilot burner, to chamber 21 to close the valve 20 and open valve 18a, and to chamber 6 to open the main valve. On closure of the starter valve, the valve 18a having been opened to inlet gas, maintains these conditions. On opening of the control valves 35, the main valve closes an amount according to the opening thereof and even on complete closure of the main valve the pilot burner stays alight. If, however, either of the control devices 33 are operated to release pressure from the chamber 21 the whole unit closes and the starter valve must be used to enable the main burner to be relighted. The construction is such that any leakage of a diaphragm, or a choked weep passage causes closure of the unit as does a reduction in supply pressure below a minimum amount.
Patent GB-468858-A (GB)
Title: Improvements in or relating to light weight metal pistons particularly for internal combustion engines
IPC: F02F3/00
Filed: 1936-01-23
Abstract: 468,858. Pistons. SCHNEIDER, E. W., and ARON, W. Jan. 23, 1936, No. 2149. Convention date, Jan. 23, 1935. [Class 122 (i)] In a piston in which the head is separated from the skirt by a slot e and connected to the bosses by a cylindrical web b<2> spaced from the piston wall, an insert d above each boss is positioned before casting, whereby upon contraction or cooling spaces form around the inserts and provide, in conjunction with spaces m, a continuous air gap. Such inserts dispense with the necessity for complicated core structure above the bosses and are stated to assist distribution of heat and pressure stress. The inserts may be corrugated and may have one or more projections i. The bosses may be partially separated from the skirt by slots l.
Patent GB-143816-A (GB)
Title: Fuel storage tanks for locomotive tenders
IPC: B61C17/02
Filed: 1919-02-24
Abstract: 143,816. Muhlfeld, J. E. Feb. 24, 1919. Railway locomotives, steam ; bunkers, construction of.-Relates to bunkers provided with fuelfeeding apparatus and removably fitted to a locomotive tender, such as are described in Specification 13067/15. [Class 51 (i), Furnaces and kilns, Combustion apparatus of]. The bunker 81 has hand-rails 85 and slinging eyelets 86, and fits into a recess at the front of the tender 77. The inclined sides 88 and partitions 91 form troughs which contain screw conveyers 89 for feeding the fuel to the furnace. Vertical partitions 92 above the conveyers prevent arching of the fuel. The bunkers may be lagged, and the bottom may be serrated to form the troughs.
Patent GB-771921-A (GB)
Title: Boilers
IPC: F24H9/18
Filed: 1954-01-25
Abstract: 771,921. Boiler furnaces. SMITH, W. H. Jan. 17, 1955 [Jan. 25, 1954], No. 2235/54. Class 51 (1). [Also in Group XIII] In a hot-water or steam boiler having a hopper 2 which feeds a fire bed through which a fan 38 forces combustion air, a flue 27 extends upwardly from the fire bed and contains a water chamber 32 which divides the flue into front and rear passages 33, 34 through which the flue gases flow in equal proportions. The flue 27 and the passages 33, 34 taper upwardly, and lead to a rear flue 30 and outlet flue 31. The water spaces of the boiler are formed by hollow side walls, hollow walls 3, 25, 28, a hollow platform 5 at the bottom of the hopper, and a front space 21. The side walls contain baffles 56, 59, and the platform 5 and chamber 32 contain pairs of baffles 58, 60 which are spaced at the centre. The boiler has a safety valve 64 which if it blows off, discharges water into the firebox to put the fire out. The fan outlet has a pivoted flap 45 with adjustable stops for limiting its opening and closing. Secondary air flows through an opening 40, past an adjustable valve 42, to a downwardly directed outlet 44. A removable cover 37 allows the flues to be cleaned. A duct 50, normally closed by a flap 51, discharges accumulated dust from the flue 31. The firebars 12 are supported by a cross-bar 13 and a spring- supported bar 14. Clinker is pushed from the firebars into an ash-pan 18 by ram 16 reciprocable over the bars by an oscillating crank 17. A slidably adjustable plate 10 regulates the flow of fuel from the hopper 2.
Patent GB-664755-A (GB)
Title: Improvements in or relating to photographic view-finders
IPC: G02B23/14
Filed: 1949-01-27
Abstract: 664,755. Optical systems; view-finders. KODAK, Ltd. Jan. 27, 1949 [Jan. 27, 1948], No. 2299/49. Classes 97 (i) and 98 (i). A photographic viewfinder comprises an optical sighting system including a front lens and an ocular for receiving the object, a second optical system including said ocular, an -illuminated reticle in the torm of a cross and a prism in the form of a right pyramid arranged with its square base normal to and its apex on a line passing through the centre of the cross and perpendicular thereto and with its apex further from the reticle than its base so that a virtual image of the cross is produced by the prism, and means for combining light from the object through the front lens and from the reticle through the prism and for directing said combined light through the common ocular. Alternatively, the prism may be a right pyramid on an oblong base, the two faces of which having the longer base dimension being that corrugated to provide several parallel plane refracting surfaces, each of which is inclined to the base at a smaller angle than the other two inclined faces of the pyramid. As shown in Fig. 6, the view-finder comprises a prism 26 having an oblong base, the length of the longer sides thereof bearing a ratio to the length of the shorter sides which is the same as that between the longer and shorter sides of the outer oblong of the virtual image of an illuminated cross 14 formed and the faces of the prism having the longer base length are each corrugated as at 27, 28. After passing through the prism, the convergence or divergence of the light rays is altered by a lens 18 to equal that of rays from the object which pass through a front negative lens 10 and are received by a semitransparent reflector 12: The rays from the object and from the prism then pass to an ocular 11 with the same vergence so that parallax is avoided and an observer sees the virtual image of the cross 14 in the form of an oblong 16 divided by a cross 14<SP>1</SP>, Fig. 9, superposed on a virtual image of the object. The negative lens may be replaced by a positive lens whereby a real, image of the object is formed and the prism 26 may be moved axially as by a rack-and-pinion mechanism 20, 21 to vary the size of the virtual image formed thereby so that the view-finder can be used in conjunction with a camera having interchangeable lenses of different focal lengths.
Patent GB-928239-A (GB)
IPC: F04C18/10
Filed: 1961-01-20
Abstract: 928,239. Rotary compressors or motors. BORSIG A.G., and WANKEL G.m.b.H. Jan. 20, 1961 [Feb. 5, 1960], No. 2306/61. Class 110(2). A rotary piston compressor or motor of the n and n+ 1 lobe type having an outer rotor 1 Fig. 1, mounted with overhang in a housing 2, and an inner rotor 3 supported on a pin 4 mounted in an end housing cover 5 having inlet and outlet conduits 6, 7, Fig. 2, includes in the inlet conduit a helical passage 8 extending concentrically about the pin 4 over part of the conduit area so that part of the fluid intake flows directly into the working chambers 11, 12, 13 (see arrows 16, 17, 18, 18a) and part through the passage 8 to be directed away from the edges of the outer rotor to produce a more uniform supply of working fluid to the chambers to improve efficiency and reduce noise.
Patent GB-942308-A (GB)
Title: Improvements in or relating to nuclear fuel elements
Inventor: BUTLER FRANK
IPC: G21C3/16
Filed: 1960-01-21
Abstract: 942,308. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 12, 1961 [Jan. 21, 1960], No.2319/60. Heading G6C. In a nuclear fuel element comprising a fuel member 42 in a protective sheath 43 provided with end-locating members 46, 47, a non-fissile member is arranged to provide a void space adjacent an end of the fuel member to accommodate local end growth of the fuel, said non-fissile member being of material having a neutron absorption cross-section greater than that of the fuel. Overheating at the end of the fuel element is thus avoided. As shown, boron steel caps 78, 79 are screwed on to reduced end portions of the fuel member leaving voids 82, 83 with vent holes 80, 81. Other features are heat insulating alumina discs 62, 63, circumferential grooves 48 into which the sheath is indented, and thin uranium rings 74, 75 to assist detection of leakage. The Provisional Specification also describes an element in which boron steel dowel members are provided in sockets in the end locating members; this Specification also states that if the caps 78, 79 are made of cobalt steel, they may be removed after a period of irradiation and used for medical purposes. Specification 939,183 is referred to.
Patent GB-130385-A (GB)
Title: Improvements in Mirrors.
IPC: G02B23/00
Filed: 1918-02-11
Abstract: 130,385. Hilger, Ltd., A., and Twyman, F. Feb. 11, 1918. Reflectors ; reflector systems.-order to provide a mirror whereof the silvered surface is so formed that the rays reflected therefrom will give an image coincident with that from the front surface, the plate for the mirror is placed in an interferometer of the kind described in Specification 103,832: the interference fringes produced by the front surface are then caused to disappear by adthe instrument, and those produced by the surface to be silvered are observed and the surface treated as described in the above-mentioned Specification until the fringes are no longer seen.
Patent GB-244938-A (GB)
Title: Improvements in collapsible rafts
IPC: B63B7/08
Filed: 1925-01-28
Abstract: 244,938. Scheibert, F. Jan. 28, 1925. Rafts.-In collapsable rafts of the kind in which a flexible bottom comprising webbing c stiffened with battens d and stretched by means of an inflatable tube, the ends of the table are of angular or ogival shape and may be upwardly inclined whilst the flexible bottom is attached at a normal to the medial section of the outer tube.
Patent GB-1213616-A (GB)
Title: Improvements in or relating to coulometric measuring apparatus
IPC: G01N27/42
Filed: 1969-01-16
Abstract: 1,213,616. Electro-chemical analysis cells. INSTRUMENTATION LABORATORY Inc. Jan. 16, 1969 [Jan.24, 1968], No.2630/69. Heading G1N. In a system for measuring the amount of a constituent of a substance, a circulating carrier is used to transport the constituent along a path from a sampling point to a coulometric cell and a selectively permeable membrane through which the constituent can diffuse bounds a portion of said path at either the sampling point or the cell. As shown in Fig.2, an arrangement for measuring in vivo the oxygen content of blood comprises an oxygen-permeable silastic tube 112 for inserting into an artery and connected into a closed circulation loop including a pump 22 for circulating a saline electrolyte in the loop and a coulometric cell 20 for electro-chemically reducing all the oxygen diffusing through the tube 112 into the electrolyte. Cell constructions. The cell comprises a platinum cathode 88 for reducing the oxygen in the form of a helix wound on a porous glazed porcelain tube 92 and held in place by a shrinkable vinylidene fluoride sleeve 102 which also defines a helical flow path for the incoming electrolyte of such a length that all the oxygen is reduced. A silver anode 110 is disposed within the porcelain tube 92 and a silver reference electrode 28 is connected in a feedback circuit with the anode to maintain the cathode reference electrode voltage constant. A layer 106 of silicone rubber sealant covered by a second sleeve of vinylidene fluoride provides a fluid tight seal. In an alternative cell, Fig. 10 (not shown), a silver wool cathode (202) is disposed within a porcelain tube (200) surrounded by a coiled silver anode (210). In Fig.9, the selectively permeable membrane is at the cell and comprises a helix of oxygen permeable tubing 112' interleaved with a cathode helix 88' and is held in place on a porous ceramic cylinder 92' by an impermeable vinylidene fluoride sleeve 102'. For supervising fermentation processes, a biological filter (220) may be provided in addition to a selectively permeable silicone membrane (224), Fig. 15 (not shown).
Patent GB-897824-A (GB)
Title: Improvements in or relating to a solenoid-operated fluid-control valve
Inventor: RAY WILLIAM ALTON
IPC: F16K31/10
Filed: 1960-01-25
Abstract: 897,824. Valves. GENERAL CONTROLS CO. Jan. 25, 1960, No. 2710/60. Class 135. [Also in Group XXXII] A solenoid valve for controlling the supply of gas to a burner comprises a casing 11 having a flow passage 13, 14 controlled by a closure member 46 maintained closed by a spring 48, a solenoid device 18 mounted on the casing and having a plunger 32 carrying a stem 50 which is connected by a sealed rod 41 with the valve for moving the latter to the open position when the solenoid is energized, a casing 17 surrounding the solenoid and filled with a viscous liquid, and dash-pot means mounted in the casing 17 and engageable with the plunger stem, the dash-pot comprising a cylinder 57 and piston 58, restricted openings 66, 68 connecting the cylinder with the viscous liquid, the piston being operable by the stem to cause the liquid to flow through the openings and thereby retard the movement of the closure member towards fully open position. The piston 58 is provided with a passage 64 cooperating at one end with a closure member 62 loaded by a spring to the open position shown. The cylinder 57 is screw-threaded for axial adjustment in the casing in order to vary the gap between the closure member 62 and the ends of the stem 50. In operation, when the solenoid is energized, the plunger moves to the left as shown, and thereby opens the closure member 46 quickly due to the above-mentioned gap, but when the end of the stem contacts the closure member 62 and thereby closes the passage 64, continued movement of the valve is retarded due to the piston 58 forcing liquid through the restricted openings 66, 68 in the cylinder. Upon the solenoid being de-energized, the valve 46 closes and the piston 58 returns rapidly due to the fact that the spring 63 lifts the closure member 62 off its seat, thereby permitting full flow of liquid back into the cylinder 57. In various modifications of the dash-pot a dial may be provided for indicating the various settings of the gap between the stem and the closure member 62 and different arrangements of ports in the cylinder or in the piston may be provided in order to vary the speed with which the valve moves to the fully open position. The dash-pot may be arranged at the opposite side of the solenoid so that the plunger then pulls open the closure member.
Patent GB-346873-A (GB)
Title: Window wedge and stop
IPC: E05F11/00
Filed: 1930-01-27
Abstract: 346,873. Window wedges. STANLEY, J. M., 41, Mayville Road, Leytonstone, London. Jan. 27, 1930. No. 2733. [Class 89 (ii).] A window wedge is formed as a tapered semicircular member a, serrated along the wedge face b, and has a central boss e adapted to take a pivot pin. At one end of the wedge is a projection c for moving it into and out of action. For locking the wedge, a spring- pressed ball h is provided.