baber/WOPTO huggingface dataset:
Patent GB-817783-A (GB)
Title: Treatment of molten ferrous material
Inventor: BANNISTER LEONARD CHARLES
IPC: C21C5/56
Filed: 1956-11-30
Abstract: 817,783. Refining iron. BRITISH OXYGEN CO. Ltd. Nov. 25, 1957 [Nov. 30, 1956; March 11, 1957], Nos. 36697/56 and 7953/57. Class 72 A process for the treatment of molten ferrous metal comprises allowing the molten metal to fall freely through a reaction space in contact with a stream of oxidizing gas flowing in the opposite direction. The oxidizing gas consists in oxygen or oxygen containing gases or vapours which, if desired, may contain solid oxidizing agents suspended therein, for example, oxygen, oxygen enriched air, air, carbon dioxide, oxygen diluted with inert gas, or mixtures thereof; water vapour, which may be superheated may be included. The gas may have in suspension solids extracted from the fume of the process, mill scale, iron ore, iron oxide, slag forming and/or fluxing materials, e.g. lime, limestone, or fluorspar. As shown, metal from a blast furnace may be poured into a crucible 16 having holes 18 in the bottom to produce a series of droplets which fall through a shaft 10 having a refractory lining 11 while a stream of oxidizing gas passes upwardly from a tuyere 19. Additional oxidizing gas may be added through tuyeres 20 and 21 and the shaft may be heated by burners 22. The metal may be broken up by a jet of oxidizing or inert gas or by the impingement of two jets of metal. The metal may be discharged below but to one side of the shaft, as shown, or may be discharged outside the tower containing the shaft, Fig. 2 (not shown). The metal treated may be direct from a blast furnace or partially refined carbon or alloy steel, and the final metal may be in the finished state or may proceed to further processing.
Patent GB-632996-A (GB)
Title: Improvements in or relating to the manufacture of cylindrical and conical tubes from plain plates
IPC: B21D11/20
Filed: 1946-12-12
Abstract: 632,996. Making tubes. RADAELLI, U., and BERTOLI, E. Dec. 12, 1946, No. 36710. Convention date, Dec. 14, 1945. [Classes 83 (ii) and 83 (iv)] Angular bending.-Cylindrical or conical tubes T, Fig. 4b, are bent up from flat plates in a machine comprising successive stands of external rolls r having axes s perpendicular to the direction of tube feed, and generating lines t tangential to the curve to which the plate is to be bent, with their middle planes intersecting in the tube axis; and having radii of curvature greater than that to which the plate is to be bent, internal .rolls q co-operating with some of the external rolls r and further sets of external rolls to close or overlap the tube edges. The numbers of rolls r in each stand increase with the curvature and the rolls r are fixed, or movable along their middle planes for making cylindrical or conical tubes respectively. The plates, Fig. 2, are fed by rolls 1, 10 and 11 or by a gripping chain, Fig. 3 (not shown), through the bending stands 3 to 7 to a resistance welder 8 and finally through sizing rolls 9, the rolls being gear, rod, electrically, hydraulically or pneumatically driven. Shearing.-The plate edges are trimmed by disc cutters 2 fixed for cylinders and diverged at uniform speed by opposite-hand screws 12 for tapered tubes. Operation. In making cylindrical tubes the rolls are fixed and the plates drawn through. For conical tubes the external rolls r of each stand are withdrawn at uniform speed as the plate passes through and a quick-return mechanism is provided to reset the rolls r to the small curve in readiness for the next plate.
Patent GB-1494810-A (GB)
Title: Device for draining and flushing the bladder
IPC: A61M1/00
Filed: 1975-09-08
Abstract: 1494810 Bladder draining and flushing apparatus RICHARD WOLF GmbH 8 Sept 1975 [18 Sept 1974] 36821/75 Heading A5R A device for draining and flushing the bladder comprises a battery powered reversible pump 5 controlled by a two pole switch 4, a catheter 2 for connection to a first pump in/outlet and a pipe 11 connecting the second pump in/outlet with check valves 7, 8 valve 8 allowing passage of fluid from a container 9 into the bladder 6 if the pump 5 is run in one direction, valve 7 allowing drainage of fluid from the bladder 6 out through drainage conduit 3. The container 9 is preferably triangular in cross-section and fits in a compartment 13 in a housing 1 which houses the pump controlled by switch lever 4'. Instead of check valves 7, 8 a manually operated valve may be substituted, controlled by an additional activating element 12 on the housing 1.
Patent GB-893659-A (GB)
Title: Improvements in or relating to the construction of pistons for internal combustion engines, compressors and other similar machines
IPC: F16J1/00
Filed: 1959-03-03
Abstract: Bearing rings having at least an outer surface of anti-friction metal are incorporated during the casting of a light metal piston. The bearing rings may be machined from copper or an alloy thereof. Alternatively, they may be formed by spraying molten particles of anti-friction metal, preferably copper or alloys thereof, on the roughened outer peripheral surface of a ferrous ring, the anti-friction metal coating so formed being then subjected to heat treatment in the presence of a reducing agent, preferably hydrogen, to reduce oxides of the metal and to weld the particles together. The molten particles may be sprayed by compressed air from a spray gun.
Patent GB-1124094-A (GB)
Title: Production of cylindrical articles by rolling
IPC: B29D1/00
Filed: 1965-08-31
Abstract: 1,124,094. Rolling in the supercooled state. J. M. PLAGEMANN [trading as PEE-WEEMASCHINEN-UND APPARATEBAU WERNER PLAGEMANN]. 31 Aug., 1965 [30 April, 1965], No. 37111/65. Heading B5A. Cylindrical thermoplastic articles having a thread or other contours are produced by rolling the thermoplastic articles into the desired configuration after cooling. At least the region of the article to be deformed and the bordering region are preferably cooled by a refrigerant prior to rolling. The rolling tools may be cooled continuously by a refrigerant. The refrigerant may itself be cooled in a heatexchange system, and is preferably produced from dry ice, or by expanding a liquid which liquifies from the gaseous state at a low temperature. The rolling period i.e. the rolling path is preferably made as short as possible e.g. by using segmented rollers.
Patent GB-892544-A (GB)
Title: Concentric triple valves for internal combustion engines
IPC: F01L1/28
Filed: 1960-10-29
Abstract: 892,544. Valves; combustion chambers; cooling. COLTON, R. J. Oct. 29, 1960, No. 37240/60. Classes 7(2) and 7(6). An engine having inlet and exhaust passages 5, 6 Fig. 1 communicating with a cylinder opening is provided with an internal poppet valve seat and an external seat 26 co-operating with an annular valve member 3 which is opened by exhaust gas flow when the poppet valve 2 is open and an inlet valve 7 adapted to uncover the inlet passage 6 by suction in the cylinder 49. Just before commencement of the exhaust stroke of a piston 22, a poppet valve 2 is opened by a lever 11 actuated by a follower 13 from a cam 1. The lever 11 is pivoted about a shaft 17 and carries an hydraulic lash adjuster 16. The valve 3 is unseated by gas flow during the exhaust stroke and engages push-rods 12 to compress springs 14 against fixed abutments. The valve motion is limited by the faces of the push rod guide tubes (Fig. 2 not shown) and a clearance is provided so that the valve 3 may be finally seated by gas-pressure. During the suction stroke the valve 4 is unseated from the end of a tube 8 to admit mixture into the cylinder 49 and the valve 2 is closed at the commencement of the combustion stroke. The valve 3 may have an annular depression (Fig. 4 not shown) or the shape of the poppet valve may be altered to reduce the volume of the space between the valve head and the valve 3 when closed. The push rod tubes may be assembled by the "freezing" method or may be screw-threaded. The push rod 12 diameter may be increased above the cylinder head to provide a stop and to increase the mass of the rod to provide for further compression of the springs 14 after the valve 3 abuts the push rod guide tube ends. For engines requiring constant speed operation the push rods may be omitted and the exhaust valve upward movement may be limited by either the cylinder head casting or a fixed collar on the tube 8. In another embodiment (Fig. 3 not shown) the valve arrangement is applied to a liquid-cooled four-stroke cycle L head engine. In an embodiment used in high-performance engines, the internal gas pressure on a large poppet valve 2 Fig. 5 is relieved by providing passages 67 and 82 which communicate with a cup-shaped inlet valve 4 which also forms a cylinder in which the boss 66 acts as a piston and is provided with gas seal grooves (not shown). The exhaust valve 3 is bell shaped at 79 and co-operates at its inner valve seat with a valve seat 50. The camshaft may be arranged, with appropriately modified cams, to run a half or quarter of the engine speed. Tension springs may be substituted for the compression springs and the springs for the exhaust valve may be located in the exhaust passage. The cylinder head may be of built up construction and the poppet valve may have a flat seat.
Patent GB-1279317-A (GB)
Title: Stable, concentrated aqueous solutions of basic dyestuffs
IPC: C09B23/06
Filed: 1969-07-25
Abstract: 1279317 Basic dye compositions CIBAGEIGY AG 25 July 1969 [25 July 1968 30 May 1969] 37464/69 Heading D1B Basic dye compositions comprise 1) 10 to 80% by weight of at least one cationic dyestuff the anionics of which is derived from a strong inorganic acid and 2) 90 to 20% of a solvent medium comprising a) 5 to 50% by weight of water, b) 95 to 50% by weight of at least one fatty acid containing 1 to 4 carbon atoms. Azo, methine, azamethine, acridine, azine, oxazine, xanthene, anthraquinone, and triphenylmethane dyes are specified, anions include phosphate, sulphate, methylsulphate, halide, zinc halide and nitrate, the solvents preferably being formic, acetic, propionic, chloroacetic and lactic acids. Anti foaming agents may also be present.
Patent GB-364306-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: F23Q2/08
Filed: 1930-12-12
Abstract: 364,306. Frictional pocket-igniters. CURWEN & CO., Ltd., W. M., 6, Emerald Street, London.-(Kremer & Bayer; Offenbach, Germany.) Dec. 12, 1930, No. 37603. [Class 75 (iii).] The wick-cap 19 is so shaped that in the closed position it forms a continuation of a hood 11 and in conjunction therewith forms a complete cover for the top of the fuel container 10 and for the friction wheel 17 and wick. Preferably, the cap 19 and wheel 17 are mounted on a common axle 18. The cap 19 is opened by the snap action of a spring 23, secured to a fixed claw 12 and a stirrup 25 pivoted at 26 to the cap, when the pivot 26 is raised by means of a finger 28 on an operating trigger 27 to a position in which the line of pull of the spring is above the axle 18. The opening movement is limited by the arms of the stirrup engaging stop portions of the hood. The wheel 17 is connected with the cap by a one-way clutch constituted by one or more wedging members, e.g. a roller 30 located below an abutment 31 on the cap. The hood 11 is secured to the container by screwing the wick tube 14 through a hole in a base piece 15 into the container. The base piece 15 is perforated adjacent the wick tube and a layer of absorbent material 39 is located around the wick tube and preferably also around the flint.tube 36 for absorbing fuel which may leak from the wick tube. The side walls of the hood may be extended to form a wind shield, which may be perforated. A hollow screw plug 34 sealed by a screw 35 is provided for spare flints.
Patent GB-1400137-A (GB)
Title: Method and a machine for expanding a slotted workpiece
IPC: B21D31/04
Filed: 1973-08-09
Abstract: 1400137 Expanding and stretching metal COMALCO (J & S) PTY Ltd 9 Aug 1973 [24 Aug 1972] 37904/73 Heading B3E A machine 20 for expanding a workpiece having a slotted web portion comprises a frame 21 having a longitudinal member 22 and transversely extending bearers 23 for supporting workpiece tool supports 26 extending in a longitudinal direction, workpiece engaging tools (61), Fig. 8 (not shown), 114, Fig. 10, carried by respective tool supports to engage longitudinal edge portions of the workpiece, power actuated devices 27 coupling the supports and arranged to increase the transverse distance between the supports to expand the workpiece, a first abutment member 34 and a first control member 33 coupled to the devices, and a second abutment member 38 co-operable with a second control member 37, the members enabling control of both outward and inward movement of the supports. A hand operated valve control (41), (42) effects further movement of the movable tool supports. Cylinders 27 are coupled to the frame 21 by trunnion blocks 28 which allow limited relative pivotal movement of the cylinders. Termination of the stroke of the cylinders is provided by a threaded rod 49 carrying two pairs of nuts 50 which can be adjusted to allow stretching of workpieces having tapered sides. End clamps 45 are provided on the frame and are operated by trunnion mounted cylinders 46. A cross-bar 97 is mounted on the piston-rod of the cylinder 46 and carries tension bars 93 attached to toggle links 91 situated between clamping blocks 90. Bending of the web portions 57 is effected by securing a track 110 to the lower tool support 26 for grinding and supporting carriage blocks 113 having support hooks 114 for engaging the edge of a mesh panel. A series of blocks 113, Fig. 11, are interconnected by a flexible line 116 to maintain them in an equally spaced position when taut. The positions are fixed by providing the upper support 26 with a cam plate (117), Fig. 13 (not shown), having recesses (118) engaging over respective blocks (113), to enable the workpiece (54), Fig. 5 (not shown), to be engaged on hooks 114.
Patent GB-997876-A (GB)
Title: An agitator dump truck
Inventor: PULLIN CYRIL GEORGE
IPC: B60P3/16
Filed: 1961-10-24
Abstract: 997,876. Concrete mixers. WINGET Ltd. Oct. 22, 1962 [Oct. 24, 1961], No. 38072/61. Heading B1C. A vehicle for transporting and agitating concrete has a body 2 mounted for discharge by tilting and having an open top, a rounded upwardly and rearwardly sloping bottom 4 of part conical form, and a rotatable agitator shaft 25 concentric with the rounded bottom and having blades 34. As shown, the shaft 25 is driven by a hydraulic motor 32; when, owing to increasing resistance of the mix and consequent compaction against one end of the container, pressure rises in the fluid supply lines 42, 62, a pressure sensitive device 63 actuates a micro-switch which starts a battery powered electric motor and initiates operation of the lever 51 by means of a crank, whereby the direction of flow in the pipes 60, 61 is reversed (see also Figs. 3 and 4, not shown). As the crank completes a revolution the lever 51 is brought to its original position whereby the agitator resumes its original direction of rotation ; such cycles of reversal will be repeated until the obstruction is cleared. The electric motor speed can be adjusted to provide for any desired number of revolutions or part of a revolution of the agitator in each direction. The control valve 36 may alternatively be operated by a hydraulic motor controlled by a shuttle valve having a time-base cut-off unit. Control levers 52, 53, 54 operate respectively the jacks 11 for tilting the body round the pivot 9 ; the jack 17 actuating the discharge gate 7 ; and the jack 24 for extending the discharge shoot 23. Discharge may be assisted by water sprays 94, 96 supplied with water from a tank 90 by a hydraulically driven water pump 46. The open top of the body may have a protective grill 101 and may be closable by means of steel doors or a spring-tensioned roller blind 104 mechanically, electrically or hydraulically actuated. The agitator arms 33 may be of spring steel and there may be an additional helical agitator 35 at the discharge end.
Patent GB-1215888-A (GB)
Title: Improvements in sealing wrappers and containers
Inventor: LANCASTER ALASTAIR LESLIE
IPC: B65D27/30
Filed: 1968-08-09
Abstract: 1,215,888. Envelopes. A. L. LANCASTER. 11 Aug., 1969 [9 Aug., 1968], No. 38155/68. Heading B6A. A wrapper or container comprises two portions adapted to be secured together by an adhesive to provide a seal which is infrangible during ordinary opening of the wrapper, i.e. the material of the wrapper has to be torn, the seal incorporating, or being associated with a substance which changes visibly if heat or solvent is applied to fraudently open the wrapper. As described, the substance is a non-stable and/or fugstine stain or ink mixed with an adhesive. Alternatively, the stain may be included in the material of the wrapper &c., or it may be in the form of a strip 7 alongside the adhesive 6. The wrapper may be in the form of a wages envelope, the notes protruding therefrom for inspection and folded over with the top part of the envelope, firstly along a diagonal 4 bounding the adhesive and then folding this triangular double portion in half along another crease 5.
Patent GB-1104461-A (GB)
Title: Pneumatic atomizer for spraying liquids
Inventor: FRASER REGINALD PERCY
IPC: B05B5/03
Filed: 1963-09-27
Abstract: 1,104,461. Spray-producer. SOC. ANON DE MACHINES ELECTROSTATIQUES. 24 Sept., 1964 [27 Sept., 1963], No. 38172/63. Heading B2F. A pneumatic atomizer for spraying liquids, e.g. paint, comprises an atomizing annular chamber 2a, Fig. 1, to which a liquid to be sprayed and a gas are fed through respective inlets 4, 3, a plurality of outlets 5 in a circular path and a source of d.c. potential 6. In the embodiment of Fig. 2 paint is supplied to an annular atomizing chamber 15 through a metal-lined bore 18 and passages 16 whilst compressed air is passed to the chamber via an inlet 21, an annular cavity 20, holes 19 and passages 17. The atomized mixture issues to the atmosphere in a fan-like formation through passages 23, dispersed in a disc member 22, a chamber 27 and a slot 26. The metal lining 28 of the bore 18 is connected to a d.c. potential which may be of the order of 100 KV. In a modified form of this apparatus the disc member 22 and the nozzle member 25 embodying the chamber 27 and slot 26 are replaced by a single nozzle member incorporating spray discharge passages inclined to the axis of the bore 18 and connecting directly to the annular chamber 15. In a further modification the disc member 22 and nozzle member 25 are replaced by a single nozzle member having an annular cavity which axially extends the annular chamber 15 the outer extremity of this cavity communicating with the atmosphere through connecting spray discharge passages. The embodiment of Fig. 6 incorporates a valve 35 having a pintle 36 for partially or completely closing an axial outlet 34 through a nozzle member 32. The paint also passes to the annular chamber 15 through passages 16 the resultant spray emanating from the member 32 through outlets 33. In this construction the valve 35 is made of metal and is connected to the d.c. source. In a modification of this embodiment the pintle 36 and outlet 34 are omitted, the electrostatic charging of the spray being effected by corona discharge emanating from an annular electrode adjacent the outlets 33.
Patent GB-1475350-A (GB)
Title: Vapour generators
IPC: F22B29/06
Filed: 1974-09-02
Abstract: 1475350 Supercritical forced-flow once-through vapour generators FOSTER WHEELER CORP 2 Sept 1974 [18 Sept 1973] 38285/74 Heading F4A A supercritical forced - flow once - through vapour generator has front 14, rear 16 and side 18 wall panels of a furnace enclosure 12 formed from joined-together upright tubes and the panels are connected to define three series connected liquid flow passes. In the embodiment shown these three passes comprise the tubes of the front wall, the tubes of the rear wall, and the tubes of the side walls, and inlet liquid reaches them via an economiser 50 (located in a convection pass 30) and division wall panels 76 (located in an upper region of the furnace enclosure). The tubes are linked by membranes and are of increased cross-section just before the region of the panels 76 in zone B. In an alternative embodiment (Figs. 7 and 8 not shown) the flow passes are connected in the following order: front furnace walls, side furnace walls, rear furnace walls. A primary superheater 44 and a reheater 48 are provided in the convection pass and a secondary superheater 46 is situated at the convection pass entrance. A buffer circuit is arranged at the corners between the adjacent panels and receives water from each so as to be at an intermediate temperature.
Patent GB-303172-A (GB)
Title: Improvements in and relating to heat transferrers
IPC: F22G1/00
Filed: 1928-12-28
Abstract: 303,172. Schmidt'sche Heissdampf- Ges. Dec. 29, 1927, [Convention date]. Coiled-tube superheaters.-A heat exchanger described as for use in superheating steam by live steam comprises tubes which for part of their length are coiled helically on a single axis and for the remainder are straight. Two or three tubes are assembled with the coiled parts end to end, and joined by Y-pieces to form an element. in the example, each coiled part 1, 4, surrounds the straight part 3, 2, of the other tube. the two tubes joining in Y-pieces 7, 8, which are connected to headers.
Patent GB-831542-A (GB)
Title: Device for automatically maintaining a crane bridge in a correct position with respect to its track-way
IPC: B66C9/16
Filed: 1956-12-18
Abstract: 831,542. Vehicle driving gear. PUMA, S. Dec. 18, 1956 [Dec. 22, 1955; April 27, 1956], No. 38547/56. Class 79(2) [Also in Groups XXX and XXXV] To maintain a crane bridge in proper alignment with its tracks 4, 5 (Fig. 1) the drive to the wheels 2, 3 of the bridge includes a differential acted on by a corrector motor 51 controlled by means detecting any misalignment of the bridge. In the construction of Fig. 1 the differential gear normally connects two driving motors 40, 44 so that the wheels 2, 3 rotate at the same speed. The correcting motor 51 drives the cage 47 of the differential through a worm wheel 50, 49, and a reversing pinion 41 is included in the drive to the wheel 3. A single motor driving the wheels 2, 3 through a differential may replace the two motors 40, 44 and the correcting motor may drive the cage of a further differential. Alternatively the drive to one of the wheels may be direct while the drive to the other wheels is through a differential one member of which is driven by the correcting motor. The misalignment of the bridge may be detected by a carriage 87 (Fig. 4) pressed by a spring 90 so that the rollers 88 on it engage the track 5, or a fixed guide rail, and the pivotal movement of the carriage 87 about a pivot 81 may control contacts 82, 83, 84 in the circuit of the correcting motor. Contacts such as the contacts 82, 83, 84 of Fig. 4 may be mounted at opposite ends of the bridge and connected in a circuit such that relays controlling the drive are operated only when the contacts at each end of the bridge indicate corresponding misalignment, thus eliminating spurious responses. The relays may provide a delayed response. Pivoted carriages such as that shown in Fig. 4 may alternatively control a pair of rheostats mounted in a Wheatstone bridge controlling the drive. Misalignment may also be detected by magnetic transducers mounted on the bridge adjacent the track rails or adjacent fixed guide rails. In a further construction rollers 96 (Fig. 6) bearing on the track rail 5 are connected through linkages 95, 98 to racks 99 bearing on a pinion 100 carried by a shaft sliding in the direction of the racks so that the shaft is slid when the bridge skews relatively to the guide rail 5 but not when it merely moves endwise. Devices similar to that shown in Fig. 6 may be mounted on each end of the crane bridge. Some of the detecting devices described may be mounted to slide laterally on the bridge so that they always -maintain the same position relatively to the bridge wheels: this may be effected by mounting them on a laterally sliding carriage provided with abutments engaging the flanges of the wheels.