May 22, 1914. THE COLLIERY GUARDIAN. 1145 cage being then at the top of the pit shaft. The ordinary brake mechanism is set relatively to the valve gear mech- anism so that the brake lever is kicked off its support as previously described before the wind is completed, the brake being then brought into operation to bring the cage gradually to rest at the landing platform. Should the' cage overwind I! ; : '! _ ■ j ' f t- e 1 <, 4 JL-—f due to its inertia the emergency brake comes into operation, both brakes acting together to stop the motion of the wind- ing drum. The operation of the mechanism when winding “ out the house ” is similar to that described, the reversing lever 11 being thrown over to close the port 8 and open the port 9 to steam. The valve element 22 will then be the effective operating valve and the valve element 21 will ride idly in its casing. (Two claims.) 10136 (1913). Improvements in Steam Generator Tube Stopping Means. R. Houston, of 23, Merlin-street, Liverpool, Lancashire.—Has reference to means for closing the ends of tubes of tubular steam generators of the “Scotch” or return tubular type, in cases of the tubes becoming burst, or leaking, or in any other condition which renders it desirable that the tube should be stopped or put out of action; and especially to that kind of such means or apparatus where plugs for stopping the two ends of a tube are held together by a wire rope, or cord or chain, and the back plug is secured to the rope or cord by passing the latter through the tube, and bringing it out to the front of the boiler through the furnace. In applying this invention to a tubular steam generator of the marine or “ Scotch ” type, the wire rope or chain is passed through the tube to be stopped by an articulated or jointed rod, which is adapted to 9 12 be fastened to a threaded rod, and then thrust through the tube by pushing it in, until it hangs down from one end, in the combustion chamber; in which position it can be engaged or hooked and pulled through the furnace. The wire or like part for connecting the two plugs has a loop or cord on it, which assists in enabling the contrivance to be easily got hold of and pulled through the furnace by a hook or the like. When this back end of the connecting part is brought to the front of the furnace, a conical plug or like device is fastened to an eye on its end by means of a shackle or the like ; and then the parts are hauled back by means of the articulated or jointed rod into and through the tube until the coned or disc plug or the like is within the back end of the tube, and fills it. The invention is illustrated in the accompanying drawing in longitudinal section, showing it applied to a fire tube of a tubular steam generator of the marine or ‘ ‘ Scotch ’ ’ type. (Two claims.) 11610 (1913). Improvements in or relating to Gravity Conveyors. The British Mathews Limited, of 147, Upper Thames-street, London, B. C. Barton and P. C. Barton, engineers, both of Granville Iron Works, Granville-street, Birmingham, Warwickshire.—Has particular reference to spiral conveyors or chutes of the kind provided with means whereby goods may be loaded or discharged at any inter- mediate point or position on the chute between the upper and lower parts hereof. The invention consists in an improved construction of conveyor or chute of this character wherein at one or more points or positions throughout the length of the chute a portion thereof is adapted to be dis- placed and substituted by a device or supplemental track which is movable therewith and serves to direct the goods either out of or into the path or track of the chute. This may be effected by providing a displaceable portion in the main guard rail or vertical flange extending around the periphery or outer edge of the spiral track or chute, which displaceable portion is carried by or forms part of the aforesaid device or supplemental track. The said device or supplemental track may be mounted so as to be slidable in a vertical direction, in order that when in a raised position the dis- placeable portion of the guard rail may complete or form the continuation of the main guard rail or flange on the spiral chute, and when in a lowered position the supplemental track abuts against the spiral track so that the goods are directed out of the spiral path or chute and along the supplemental track to the required position. The sliding movement of the supplemental track carrying the displace- able portion of the guard rail may be effected in any appropriate way such as by rack and pinion gearing or by an arrangement of balance weights. Fig. 1 is a general diagrammatic view of a spiral chute extending through three floors of a building, showing the supplemental tracks at two intermediate floors, one in the raised position, and the other in the lowered position. Figs. 2 and 3 are elevations of a portion of the spiral chute showing the movable device or supplemental track in the lowered and raised positions respectively. Fig. 4 is a plan of fig. 2, and fig. 5 is a perspective view of the supplemental track in the lowered position. (Four claims.) 12574 (1913). Improvements in or relating to Ore Con- centrating Tables. The Luhrig Coal and Ore Dressing Appliances Limited, of 32, Victoria-street, and W. Eves, of 32, Victoria-street, London.—Relates to ore concentrating tables, and has for its object to provide an improved construction thereof. The invention is particu- larly applicable to the Buss type of table where an eccentric imparts motion to a table mounted on resilient supports. According to this invention with a Buss table or a similar table is combined an upper deck or table receiving to and fro motion from the Buss table on which it is supported but so far free from the same as to have an independent move- ment which is arrested by a bumping device or stop (to which is attached a spring), the arrangement being such that the said upper or preliminary table effects a quick preliminary separation in the material before the partly separated mineral passes on to the Buss table or table proper where the further separation is effected. The upper deck or pre- liminary table is supported on suitable guides to prevent lateral movement thereof without interfering with the longitudinal motion and means of adjusting its inclination are provided and also means for preventing any tendency to jump upwards during working. The Buss or other table to which the upper deck or table is applied, may be provided with deflectors, baffles or other devices at the discharge end of the upper deck or table, which deflectors or baffles act to spread the material evenly over the Buss table as it falls on to same from the upper deck. Fig 1 is a view in side elevation partly in section, and fig. 2 is a corresponding view in plan. (Seven claims.) 13780 (1913). Improved Socket or Capping for Attaching to the End of Ropes. P. N. B. Haggie and 0. S. Haggie, both of South Shore, Gateshead-on-Tyne.—In this invention the eye to take the load, instead of being a separate shackle, is forged from the solid-as shown at A fig. 2 of the drawings, and at the position C fig. 2 is provided with a riveted bolt. The use of a socket so constructed obviates the necessity of removing the bolt and (or) of making any adjustment in the, fitting together of the various parts of the types of sockets already in use. A. tapered split socket or capping is provided each arm of which is recessed longitudinally and thus form a tapered hole to receive the rope end, or from which-the rope end can be withdrawn, and having one side of such socket or capping hinged. This hinge is formed by one portion of the side of the socket having a knuckle or double eye, the other portion a corresponding projection of metal which fits exactly into the knuckle or double eye. The knuckle or double eye and the projection of metal received by the knuckle or double eye are securely held together by a riveted bolt, or bolt and nut, the nut having a square or other suitable head. In the invention therefore a rope socket is constructed which does away with the removable Shackle and such shackle is substituted by the socket having one of its arms made in the form of a bow to take the load as seen in fig. 2 at A; letter C in figs. 1 and 2 shows how the arms are joined together. (One claim.) 14005 (1913). Improvements in or relating to Trip Gear or Mechanism, for a Winding Engine. J. Morton, of 6, Broad Street-place, London, E.C., and T. Morton, of Standard Works, Wishaw, Scotland.—Relates to trip gear or mechanism employed with safety devices in winding engines or on the winding gear of coal and other mines. The trip gear or mechanism is connected conveniently with the controlling mechanism of the winding engine for example the brake, the steam cut off, and a valve centreing mechanism, and is acted upon by a safety gear that is brought into operation when the engine overwinds or when the engine speed reaches or exceeds a predetermined limit. The chief object is to provide an improved and simplified trip mechanism by‘which the engine, when the safety gear comes into operation, will be brought speedily and with certainty to a stand. The mechanism comprises a shaft furnished with one or more drums or winch barrels, on which are chains or the like connected to weights and which is constantly tending to rotate, a pawl normally acting on a stop on the shaft to prevent the shaft from rotating, and a longitudinally movable shaft, in a groove or between collars on which rests a pro- jection on the pawl so that when ,the shaft is moved longitudinally in either direction the pawl is lifted to release the shaft allowing the latter to rotate and the weights to drop and act upon the engine controlling the gear, for example the steam cut off, the brake and the valve centreing mechanism. Fig. 1 is a side elevation of a trip mechanism or gear constructed in accordance with the present invention. Fig 2 is an end elevation of fig. 1, and fig. 3 shows the connection between the trip gear and the valve mechanism. (Three claims.) NEW PATENTS CONNECTED WITH THE COAL AND IRON TRADES. Applications for Patents. 11541. Pick point. J. Bridge. 11543. Coal shoots for delivering coal to boiler furnaces. H. Flinn. 11562. Production of coke poor in sulphur. A. Fingerland, A. Indra, and A. Lissner. 11582. Explosive compounds. F. R. Burrows and J. G. Burrows. 11599. Portable electric safety lamps for use in mines or other places. L. Bristol. 11602. Fishplate for temporary track construction. J. T. Chapman. (J. Rundgren, Canada.) 11615. Piling. W. Clarke. 11635. Processes for the manufacture and production of new compounds of unsaturated hydrocarbons, and of solutions and compositions containing the same and the new products or compounds, solutions, and compositions obtained thereby. F. E. Matthews and H. M. Elder. 11647. Pump cylinders. B. O. Gage. 11650. Manufacture of metal wheels. J. Fellows. 11658. Mechanism for use in the manufacture of briquettes. C. Korte. 11677. Apparatus for coating sheets and plates in continuous lengths. S. O. Cowper-Coles. 11698. Couplings for railway wagons and the like. F. Benda and C. Malik. 11702. Steam engine valve gears. W. S. Brown. 11705. Shaft for chimneys and other gas ducts. G. Heister. 11706. Safety appliance for mining cages, lifts, and the like. E. Lewis. 11721. Apparatus for detecting the presence of injurious gases in mines and like places. Schoeller and Company. 11731. Firemen’s helmets. W. J. Mellersh-Jackson. (Dragerwerk Heinr. and Bernh. Drager, Ger- many.) 11751. Distributing valve gear for steam-driven pumps. P. F. Oddie. 11764. Haulage clips. A. Dootson. 11765. Weighing apparatus. H. D. Cheshire. 11775. Welding processes. E. H. Jones and Light Steel Tubular Wheels Limited. 11780. Signalling apparatus. John Davis and Son (Derby) Limited, and W. H. Davis. 11806. Lubrication of machinery. Siemens Brothers’, Dynamo Works Limited, and E. O. Kieffer. 11815 and 11816. Rotary fans, compressors, and pumps. Societe d’ Exploitation des Appareils Rateau. 11818. Attaching hubs to axles. A. J. Pomeroy. 11824. Lining, for rotary kilns or furnaces. Dynamidon G. m. b. H. 11826. Manufacture of iron and other metals. A. E. Bour- coud. 11868. Steelyard weighing apparatus. W. and T. Avery Limited, and W. Munro. 11883. Levelling instruments for use in underground work- ings. J. G. Bower. 11889. Connection boxes, junction boxes, and the like. St. Helens Cable and Rubber Company Limited and J. C. White. 11908. Shackles or the like. E. Lewis. (Continued on page 1148.)