baber/WOPTO huggingface dataset:
Patent GB-980382-A (GB)
Title: Method of rendering the surface of building structures waterrepellent
Inventor: RICHARDSON BARRY ARTHUR
IPC: C04B41/49
Filed: 1961-01-23
Abstract: The surfaces of building structures consisting of materials which combine with water under normally occurring atmospheric conditions, e.g. limestone, marble, gypsum, are rendered water repellent by first priming with a dilute aqueous solution containing less than 5%, preferably less than 3%, of an alkali metal salt of an alkyl silane triol, e.g. sodium methyl siliconate, and then applying a solution of a silicone resin free from polymerization catalyst of a type leading to a flexible polymer to the primed surface.  Specification 796,141 is referred to.ALSO:The surfaces of building structures consisting of materials which combine with water under normally occurring atmospheric conditions e.g. limestone, marble, gypsum are rendered water repellent by first priming with a dilute aqueous solution containing less than 5%, preferably less than 3%, of an alkali metal salt of an alkyl silane triol, e.g. sodium methyl siliconate, and then applying a solution of a silicone resin free from polymerization catalyst of a type leading to a flexible polymer to the primed surface.  Specification 796,141 is referred to.
Patent GB-111018-A (GB)
Title: Improvements in Coal Trimming Devices for Locomotive Engine Tenders.
Inventor: KINGETT WILLIAM ROBERT
IPC: B61C17/02
Filed: 1917-02-22
Abstract: 111,018. Kingett, W. R. Feb. 22, 1917. Tenders.-In devices for feeding coal forward in tenders comprising a movable scoop placed at the rear of the coal, the bottom of the scoop b has a part o cut away to allow the coal to pass down the shoot p as the scoop is drawn forward. The scoop is connected at each side to endless chains c which are moved by pawl and ratchet mechanism k, h. Aalternately the scoop may be moved by pistons or by screw-and-nut mechanism.
Patent GB-632806-A (GB)
Title: Improvements in or relating to back-pressure valves
IPC: A62C4/02
Filed: 1947-01-28
Abstract: 632,806. Valves ; gas pipes. SKELTON, J. S., and SMITH, C. M. Jan. 28, 1947, No. 2637. [Classes 54 and 135] In a safety cut-off valve, e.g. for preventing the pressure wave of gas resulting from a backfire in an oxy-acetylene plant, reaching the acetylene supply source, in which the gas normally flows from the supply through an inlet member 11 and a coiled tube 19 to the outlet 3, a back pressure wave acts on the smaller end of a differential piston 4 to close the larger end of the piston on to a seating on the inlet member before the pressure wave can pass through the tube 19, the piston being held closed by a spring-loaded locking catch 8. The catch is released by a handle 12 which cooperates with a lever 14 to lift the piston.
Patent GB-1524322-A (GB)
Title: Electromagnetic vibration exciter
IPC: H02K33/12
Filed: 1976-01-23
Abstract: 1524322 Vibrators BRITISH INTERNAL COMBUSTION ENGINE RESEARCH INSTITUTE Ltd 23 Jan 1976 02645/76 Heading H2A An electromagnetic vibrator has polepieces 1, 1a on a pivotable armature 2, 3 torsionally resiliently supported from a casing 9 by radial arms 8a or an axial shaft (8), Fig. 2 (not shown), positive half-cycles of an A.C. input at 6 passing via diode 7 to energize electromagents 5, 5a and thereby pivot the armature in one direction, and negative half-cycles of the A.C. input energizing electromagnets 4, 4a via diode 7a to pivot the armature in the opposite direction. The device is used for testing components such as torsional vibration dampers (13), (14), (15), Fig. 2, the damper being attached to the armature hub 3, and a flywheel (10) and a smaller additional mass (11) being attached to the armature 2, 2a, 3 or polepieces 1, la so that the combined assembly operates at or near its resonant frequency.
Patent GB-692540-A (GB)
Title: Improvements in or relating to refuse feeding device for furnaces
IPC: F23G5/44
Filed: 1952-01-31
Abstract: 692,540. Endless chain conveyers; shoots. DETROIT STOKER CO. Jan. 31, 1952. [Oct. 2, 1951] No. 2658/52. Class 78 (i). In a device for feeding refuse, such as bagasse, bark and wood, to furnaces, the refuse is carried by a drag conveyer to apertures in its base leading to vertical shoots 26 down which it falls on to an inclined endless conveyer 43 of variable speed which carries it to an inclined shoot 37 leading to a rotary spreader 41 mounted in the furnace feed opening, the delivery from the conveyer being regulated by a roll 44 arranged near the delivery end, the peripheral speed of which is substantially greater than that of the conveyer. The roll has rigid fingers 53 which are curved in a counterclockwise direction. The distribution of the refuse over the grate area is assisted by jets of air from venturi nozzles 42. The plate 34, over which travels the lower run of the conveyer 43, is detachable. A line shaft driven by a motor through a variable speed transmission is connected (1) to the shaft of the spreader 41 by a clutch and chain-and-sprocket gearing and (2) to the shaft 52 of the roll 44 by similar gearing and a variable speed transmission. The shaft 52 is connected by spur' gearing to the conveyer driving shaft.
Patent GB-824690-A (GB)
Title: New dyeing process for protein fibres
Inventor: HADFIELD HARRY ROSE
IPC: D06P3/10
Filed: 1957-01-25
Abstract: Textile materials of natural or regenerated protein fibres are dyed by applying an aqueous solution at 0-55 DEG  C. of a water-soluble azo dyestuff containing at least one sulphonfluoride group and also applying, before, together with or after the dyestuff, a dilute aqueous solution of an alkaline substance, such as sodium carbonate, sodium silicate or trisodium phosphate.  The dyestuff solution and/or the alkaline solution may also contain neutral salts such as sodium chloride or sulphate, and other non-acidic adjuvants such as ethylene oxide-fatty alcohol condensates.  Lists of suitable dyestuffs are given.
Patent GB-489938-A (GB)
Title: Improvements in or relating to slide-valve gear
IPC: F16K11/07
Filed: 1937-02-01
Abstract: 489,938. Engine distributing-valves. SGHWEICKHART, O. Feb. 1, 1937, No. 2868. [Class 122 (ii)] [Also in Group XXVIII] In distributing-valve mechanism for steam-engines, pumps and compressors, the inertia forces, the weight of the valve and gear if a vertical engine, and the unbalanced fluid-pressure forces on the valve, are balanced by means of a spring or springs in tension or compression. With springs in tension, the springs are still in stress at the lowest dead centre. The valve b is moved by an eccentric rod e. Steam is supplied to the ends of the valve and exhausted at the centre. The steam acts downwardly upon an area equal to the valve-spindle crosssection, and the weight of the valve and valvegear act upon the driving-eccentric. A spring f in compression acts upon a collar g on the spindle, and, in the mid position, the upward force is equal to the pressure on the spindle and weight. The inertia and other forces in action are described with references to diagrams. In a modification, the steam enters at the centre of the valve, and the upper part of the valve is made of greater area than the lower part, so that there is a resulting upward fluid pressure. The springs are arranged in tension. A balance piston may be used insted of making the valve ends of different area.
Patent GB-553454-A (GB)
Title: Polarograph
IPC: G01N27/48
Filed: 1942-03-05
Abstract: 553,454. Current measurements; determining physical qualities of materials. GALL, D. C. and STEGHART, F. L. March 5. 1942, No. 2904. [Class 37] The galvanometer in a polarograph equipment is provided with at least two windings through one of which the cell current is sent whilst through another counter current and a current for zero setting is sent. The polarographic cell 5 has a pool of mercury as its anode and mercury dropping from a capillary as its cathode. The pool of mercury is covered with a ground solution containing excess of an electrolyte. A gradually increasing potential is applied to the cell from a potentiometer 2, the sliding contact 3 of which is slowly moved by a motor 4. The potentiometer 2 is fed by a battery 1 in series with a variable resistance 17 for compensating for change of battery voltage. In series with the cell 5 is a high resistance reflecting galvanometer 6 which reflects light from a source 7 on to a photo sensitive paper 8. The form of the resulting record gives a quantitative and qualitative polarographic analysis. The galvanometer 6 is provided with a universal shunt 9 which permits the sensitivity to be changed without affecting the damping. A second coil 10 is wound on the same former as the usual moving coil and carries a current or condenser current compensation and also for zero adjustment. For condenser current compensation a resistance 11 is connected as a potentiometer to the common point of the two galvanometer coils and on the other side to the pool of mercury forming the anode, which is connected to the sliding contact 3. The current through the potentiometer 11 therefore depends on the position of the contact 3 on the main potentiometer 2, and the current through the sliding contact of the potentiometer 11 and the auxiliary coil 10 increases proportionally to the main voltage applied to the cell 5. Zero suppression may be similarly carried out or, as shown, a second battery 12 may be employed. A resistance 13 is connected in series with the battery 12 or adjusting the current through a resistance 14 and a potentiometer 15. The position of the contact of the potentiometer 15 determines the strength of a current flowing through the auxiliary coil 10 and back to the centre of the resistance 14. This current is independent of the main circuit and provides for positive or negative zero setting without interference with the main circuit. A direct reading galvanometer 16 is provided for reading the voltage across the cell 5. Three or more windings may be provided on the galvanometer.
Patent GB-1003501-A (GB)
Title: Burned basic refractory shapes
IPC: C04B35/03
Filed: 1964-01-23
Abstract: A dead-burned basic refractory grain contains up to 1% SiO2, CaO equal to 3 to 4.5 times the proportion of SiO2 and not more than 1% of Cr2O3, A12O3 and Fe2O3 together, the balance being dead-burned MgO.  It is microscopically characterized by direct attachment of magnesite or periclase crystals to each other.  The CaO and SiO2 content is preponderantly present in spaced disconnected pockets between the periclase and is largely present as tricalcium silicate. A shape prepared from the above grain may consist partially or completely of a dead-burned grain of the above analysis, the remainder being dead-burned magnesia.  The grain may be fired at a temperature >3000 DEG  F. to obtain a shape with good periclase-to-periclase bonding, subsequently crushed to a grain and refired at a temperature <3000 DEG  F.  Alternatively, the firing may be in one stage at <3000 DEG  F.  The refractory shape may be impregnated with with 6-8% of a cokable, non-aqueous carbonaceous material (e.g. tar or pitch). The drawings (not shown) are micrographs illustrating a refractory according to the invention and also a prior art refractory.  The shapes have a high modulus of rupture at 2300 DEG  F. and are suitable as linings for oxygen steelmaking furnaces.
Patent GB-467926-A (GB)
Title: Improvements in or relating to microscopes
IPC: G02B21/24
Filed: 1936-01-31
Abstract: 467,926. Microscopes. COOKE, TROUGHTON, & SIMMS, Ltd., and TAYLOR, E. W. Jan. 31, 1936, No. 2981. [Class 97 (i)] In a microscope provided with coarse and fine focusing movements, in which the fine motion slide is carried on an intermediate member connected at one side to the limb by the coarse motion slide, the intermediate member is formed at its other side with a guideway shaped to receive and maintain fixedly in position a supporting member of the microscope body and also the sliding member supporting the objective and operated by the fine motion slide. As shown the intermediate member 8 is attached to a dovetail slide 2 moving in a guideway in the limb 1 and carrying a rack engaging a pinion on the shaft 6 operated by the main focusing knob 7. A guideway in the forward face of the member 8 receives at its upper end a dovetail block on the monocular or binocular body. The block is held in place by lateral pressure of the pin 48 produced by the nut 54. The lower end of the guideway receives the slide 27 movable for fine focusing and carrying only the objective on the bracket 29. The fine focusing mechanism is contained within the member 8. Rotation of the motion heads 38 operates the worm 33 engaging the rack sector 15 pivoted at 16. A small displacement is thus transmitted through the pin 18 projecting from the rear of the slide 27 and depressed by the coil spring 21. The movement is limited by the nut 40 working on a lead screw 39 with stops 39a and provided with a key 41 working in the slot 42.
Patent GB-868669-A (GB)
Title: Improvements in self-propelled loading shovels
Inventor: WIDDOWSON JOHN OWEN
IPC: E02F9/02
Filed: 1959-01-28
Abstract: 868,669. Motor vehicle hydraulic driving gear. WEATHERILL Ltd., F. E. April 28, 1960 [Jan. 28, 1959], No. 3049/59. Class 79(2). A self-propelled loading shovel of the kind having a loading scoop carried on a jib mechanism comprises a vehicle body supported on wheels, which may be rubber tyred or associated with self-laid tracks, and of' which two or more, to provide traction, are driven by one or more positive action hydraulic motors supplied with fluid from an engine driven pump. In the embodiment shown in Fig. 1 an engine A drives a variable-output pump B, controlled by lever F, from which fluid flows through needle control valves L to individual motors C in the wheels, the rear steering wheels being pivoted at D. Alternatively a single motor in the vehicle body may drive two wheels through differential gearing. Fluid is maintained in the circuit by a booster pump G drawing fluid from reservoir J through filter K. Fluid pressure to the motors is limited by a valve or valves H but the pressure for the preferred hydraulic operation of the jib mechanism for scoop bucket Q is not so limited. In Fig. 1. the valves L are manually controlled to limit flow to a wheel if it slips but as shown in Fig. 2 automatic slip limiting means may be provided. In Fig. 2 fluid pressure sensing devices N affect the position of a differential piston valve in cylinder M to control operation of the valves L.
Patent GB-1173195-A (GB)
Title: Urea Synthesis
IPC: C01B21/12
Filed: 1967-01-20
Abstract: 1,173,195. Urea. MONTECATINI EDISON S.p.A. 20 Jan., 1967 [21 Jan., 1966], No. 3058/67. Heading C2C. Urea is synthesized from ammonia and carbon dioxide in a process wherein the reaction products are separated in a number of stages at decreasing pressures by heating them, evaporating the gaseous components and condensing them in the presence of water and recycling the ammonium carbamate solution produced and wherein carbon dioxide is fed to the condenser of one of the separation stages. The heat available in the condensers of the first separation stage may used to produce steam which may be employed to partly cover the thermal requirements of the process.
Patent GB-560929-A (GB)
Title: Improvements in and relating to the manufacture of artificial timber, veneers or thelike
IPC: C08L21/00
Filed: 1942-03-10
Abstract: Artificial timber, veneers, mouldings &c. are made by mixing disintegrated wood with magnesium carbonate, water, and one or more of the following substances:-resins, gums, starch, vegetable oils, and rubber latex, the mixture being dried and pressed with or without the application of heat.  Cork, synthetic resin-forming substances, animal, vegetable, or other fibres, waterproofing, fungicidal, and insecticidal substances, and a minor proportion of sulphate or chloride of sodium or iron may also be present in the mixture. Magnesium phosphate or silicate, which latter may be in the form of talc or asbestos, may also be added.
Patent GB-720664-A (GB)
Title: Improvements in fluid flow control valves
IPC: F16K7/02
Filed: 1953-02-04
Abstract: 720,664. Elastic valves. NORDSTRAND, S. G. Feb. 4, 1953, No. 3180/53. Class 135. A valve comprises a resilient, hollow sleeve 6, Fig. 1, clamped within a housing by conical rings 7, 8 and deformed laterally to engage a seat 13 by rotation through 180 degrees of a shaft 16 having an eccentric 16<SP>1</SP> upon which is mounted a ball 24 fitting within the sleeve. Bosses 14, 15 in end covers 9, 10 in which the shaft 16 is journalled have projections 22, 23 with which coact cut-away portions of a tubular member 18 interposed between the eccentric and the ball so that the member 18 is prevented from rotating and advances towards the seat 13 along the axis of the inlet and outlet openings 4, 5, the hole through which the eccentric passes being slotted at right-angles to that axis to permit such movement. The end covers 9, 10 may be adjustable to vary the pressure with which the sleeve 6 engages the seat 13. In a modification, the seat 28, Fig. 8, is formed on an adjustable, screwed fitting 32, and the sleeve 34 is clamped at each end over parts 40, 41 which are interconnected by a yoke (not shown), the ball 46 having a cut-away portion to clear the yoke. The assembly comprising the sleeve 34, the end fittings .35, 44 by which the sleeve is clamped to the parts 40, 41, and the stem 48 is held in the housing by a clamping ring 37. It is stated that the sleeve may be bonded to the housing or may be integral with it if the housing is of rubber. Also the sleeve may be closed at one end and not extend the whole depth of the housing.
Patent GB-451258-A (GB)
Title: Feeding mechanism for arc lamps with rotating carbons
IPC: H05B31/00
Filed: 1935-01-31
Abstract: 451,258. Arc lamps. KORTING & MATHIESEN AKT.-GES., Leutzsch, Leipsic, Germany. Jan. 31, 1935, No. 3193. Convention date, Feb. 1, 1934. [Class 39 (i)] In an arc lamp with a rotating electrode the electrode is fed by means of a clutch member surrounding it and operated at intervals from a rotating shaft by a cam, means being provided for throwing the feed out of gear. In the arrangement shown the clutch consists of a cone 3 engaging the electrode 1 through blocks 5 or balls 6. The cone is rotatably carried by a lever 4 which is driven by a cam 14 on a shaft 15. The shaft 15 is driven from by a change speed gear and a friction clutch to allow of hand adjustment. To keep the clutch disengaged when required, a sleeve 10, rotatably mounted on a lever 8 which normally bears on stop 22 on the lever 4 and oscillates therewith, can be caused to project into the cone 3 and prevent the clutch from engaging by means of a lever 23. Instead of a changespeed gear the cam 14 may have an adjustable stroke, or the fulcrum of the lever 4 may be adjustable.
Patent GB-168559-A (GB)
Title: An improved roulette or chance game apparatus
IPC: G07C15/00
Filed: 1921-01-26
Abstract: 168,559. Cotman, F. J. Jan. 26, 1921. Roulette.-A roulette apparatus comprises a spinning wheel or top surrounded by a dished surface around which are supported rotatable blocks adapted to be displaced by one or more balls thrown outwardly by contact with the wheel or top. When a top is used, this may consist of a disc m, Fig. 3, rotated on a spindle m<1> by means of a cord drum m<4>, projections m<2> being provided to propel the balls. The spinning top is placed on a plate b, and the balls are thereby projected against blocks g pivoted on horizontal wires e. The ends of the blocks bear numbers which, are scored during the game. Numbered recesses h are provided in the dished surface to receive the balls. The upper edge k of the casing projects inwardly to retain the balls. The blocks g may be cylinders or prisms or other shaped blocks, and may have. two or more numbered faces. Blocks with three and four numbered faces are shown in Figs. 10 and 13. The dished surface may be provided with radial partitions arranged between the different sets of pivoted blocks.
Patent GB-216468-A (GB)
Title: Improvements in trailers for vehicles
IPC: B62D59/04
Filed: 1924-02-08
Abstract: 216,468. Sutherland, B. D., and Samuel, W. E. Feb. 8, 1924. Propelling. - Relates to manually operated mechanism for propelling a trailer vehicle when disconnected from the towing vehicle. The trailer is provided with a live rear axle driven by a propeller shaft the end of which is provided with manually operated driving-mechanism. As shown, the propeller shaft projects forwardly from the rear axle and is enclosed in a casing e supported at its forward end on a cross-shaft c by a bridge piece d connected to the rear axle casing by stays d<1>. The propeller shaft drives the live rear axle through suitable gearing. The crossshaft c is rotated by hand and is arranged to slide transversely across the frame a so that a bevelwheel c<2> on the shaft may be thrown in or out of gear with a bevel-wheel e<2> on the end of the propeller shaft. The wheels c<2>, e<2> are held in or out of gear by pivoted latches g<1>, g which may respectively be inserted between the wheel c<2> and bridge d and between the bridge d and a collar f on the shaft c. In a modification, the propeller shaft projects rearwardly, its casing being supported from the frame by stays. In this case, the propeller shaft is driven directly by a handle at its rear end.
Patent GB-288762-A (GB)
Title: Improvements in or relating to power-operated tool or work turrets
IPC: B23Q1/28
Filed: 1927-02-05
Abstract: 288,762. London Electric Railway Co., and Chipperfield, W. Feb. 5, 1927. Turning; turrets.-In a power-operated tool or work turret for lathes or other machines the power which is used to lock and unlock the turret is also used for separating the turret from its support for inducing and maintaining it separated. As applied to a pneumatically operated turret, three sets of tools 30 for roughing and turning the treads and flanges of railway wheels respectively are mounted at equidistant stations around a shell 20 in the manner described in Specification 288,761. The shell, which constitutes the turret, is rotatable and axially slidable on a central support 11 and is indexed by three keys 19 engaging tapered recesses 22 in the bottom surface 21 of the turret, clamping being effected by three levers 13 pivoted at 14 in the support and actuated by a power-operated axially moving member 61 having wedge grooves 63 for engaging the levers. The levers have their longer arms in contact with the wedge so as to have a. mechanical advantage and act on plates 24 removably secured to the shell to allow assembly of the apparatus. A double-acting pneumatic cylinder 40 is secured to the upper flange 25 of the turret and contains a piston 44 of conventional design attached to a piston rod 53 which is provided with two axial pasages 45, 46. admitting fluid above and below the piston. and a third passage 47 having, below the piston. a lateral port 50 whose opening can be regulated by a slidable perforated plate 51. The lower end of the piston rod is rotatably secured to the wedge 61 by a ball-bearing 56 and lock-nuts 56<a>. In operation, fluid is admitted above the piston to force the wedge downwards and release the levers 13 from the turret, further motion of the piston rod causing an end-plate 72 to contact with a surface 73 on the support 11, whereupon the turret is raised by power clear of the indexing keys 19 and may be rotated on the ball-bearing 56 by handles 74 on the cylinder 40 to bring a different tool into operative position, the correct position being indicated by spring-pressed balls 82 in the turret engaging recesses 83 in the support. A valve, (not shown) at the upper extremity of the piston-rod is then actuated to connect the passage 46 to exhaust and admit fluid below the piston. A portion of the fluid escapes at greatly reduced pressure through the passage 47 thus lowering the turret into its seat 21 and finally raising the wedge to force the levers outwardly and clamp the turret. On account of the acute angles of the wedge the turret remains clamped without the pressure below the piston being maintained.