930 THE COLLIERY GUARDIAN. May 2, 1913. be arranged to discharge into a common receiver having a single discharge orifice, fitted in known manner with a valve for regulating the rate of flow of the discharging stream, so as to reduce the velocity of said, discharging stream to the minimum according to the discharge of schist or the like of various sizes and densities, and at the same time to ensure the necessary velocity of the ascending streams. The elements may be arranged in pairs, and the inlet compart- ment of the first element of a pair may be closed below so that the upper end of its upward passage may be adapted to direct a horizontal stream over the succeeding element. Each water inlet compartment may communicate with the bottom 'of the launder through the medium of a plurality of compartments or passages, for instance, two, one on each side of each inlet compartment. A trough or channel may be provided below the washer into which the outlet of the group of elements, or of each group of elements when a number are arranged in succession—may discharge, and this trough is adapted to be set at different inclinations. Figs. 1 and 2 illustrate diagrammatically in sectional elevation two different forms of washing or separating elements, in each case grouped with a common outlet or schist delivery chamber, each arrangement shown producing four ascending streams. Fig. 3 is a side sectional elevation of a washer fitted with a group of elements of which each alternate element produces an ascending stream into which the stream from the adjacent element is deflected horizontally, the former element also being open below to produce a downward stream and to permit of the escape of schist. Fig. 4 is an end sectional view, the section being taken on the line x—y fig. 3, the arrangement shown in these two figures constituting a complete apparatus ; fig. 5 is a plan of a group of washing or separating elements, such as shown in fig. 1; fig. 6 is a plan of the modification shown in fig. 2. (Six claims.) CATALOGUES AND PRICE LISTS RECEIVED, We have received from Messrs. N. C. Szerelmey and Co. (Rotherhithe New-road, E.C.) a list relating to the Szerelmey paints and enamels; a further list deals with the stone liquid made by the firm. “Engineering Notes” for March, published by the Klinger Company (66 Fenchurch-street, E.C.), gives par- ticulars of the Klinger steel ” flanging tool, and some interesting notes on conveyors, gauge-glasses, and time recorders. i Messrs, Bullivant and Co. Limited (72, Mark-lane. E.C.) have favoured us with a copy of their comprehensive steel wire rope and appliances catalogue. A great variety is represented, separate sections being devoted to ropes for marine purposes, crane ropes, &c., winding and hauling ropes, &c., blocks, pulleys and sheaves, reels, rope grippers, stoppers, clamps, &c., rope attachments, &c., and aerial ropeways. The haulage section contains some useful particulars of the various systems of wire-rope haulage, and the tables of dimensions and breaking loads may be taken as representative of the best practice. The catalogue is replete with illustrations, and there is that uncommon thing in a catalogue—a good index. All rope-users should certainly write for a copy of this list. The Chicago Pneumatic Tool Company (1010, Fisher- building, Chicago, U.S.A.) send us three of their latest bulletins, relating to the Chicago Giant rock drill. The valve motion of these drills is of the tappet type, the tappet operating on a pin of tool steel working in renewable hardened steel bushings. The drill is provided with a removable rotating mechanism arranged to slip should the steel become bound. The guide shell has a double side- bearing, the caps or guides being adjustable in two planes. The Giant drill may be used both for compressed air and steam; in various sizes, it will drill holes of a maximum depth of from 9 to 25 feet, with bits from 1| to 3i inch diameter. In the latest form of tripod there is an arrange- ment whereby the shock is taken up by the clamp and not on the clamp bolt; one form has a long saddle bar for drilling several holes in line with moving the tripod. Particulars are also given of drill columns and channellers, drill steels, blacksmiths’ tools, hose, flexible joints, blasting apparatus, &o. NEW PATENTS CONNECTED WITH THE COAL AND IRON TRADES. Applications for Patents. 9307. Appliance for filling bags or sacks with loose material such as coal, gravel, and the like from trucks, shoots, bins or other receptacles. W. J. S. Perkin. 9312. Water-tube boilers. Babcock and Wilcox Limited. (Babcock and Wilcox Company, United States.) 9321. Lighting miners’ and like safety lamps. A. Paxton. 9323. Trucks. J. T. Godfrey. ,9324. Device for automatically raising loose or heapable material. J. Pohlig Akt.-Ges. and P. Volkenborn. 9341. Turbine engines. H. F. Kalvelage. 9350. Piston valves for pumps and the like. J. Simpson and Co. Limited, and H. D. Shrimpton. 9354. Centrifugal pumps. Siemens-Schuckertwerke G. M. B. H. 9357. Process and apparatus for the separation of gaseous mixtures into their constituents. R. P. Pictet. 9358. Tin-plate heating furnaces. H. J. Diether. 9359. Trucks. G. P. Taylor. 9375. Manufacture of coke. J. Moeller and H. C. Woltereck. 9378. Cradle suspensions for bogies of railway vehicles. L. Othegraven. 9381. Electric furnace. P. Eyermann. 9382. Machines for grinding and for similar mechanical operations. J. H. Dickinson. 9383. Induction motors for driving winding engines and for similar devices. H. J. S. Heather. 9392. Utilisation of peat. T. Rigby, G. W. Andrew and Wetcarbonising Limited. 9400. Continuous carbonisation of coal in vertical retorts. H. J. Toogood and Robert Dempster and Sons Limited. 9405. Haulage clips and the like. C. Kearton. 9437. Weighing and weight-registering apparatus. D. K. Fairweather. (Frank Kennedy McIntyre, China.) 9448. Coal-cutting machine. A. Scharf. 9454. Gas turbines. M. H. Churchill-Shann. 9460. Electrical connectors of the plug and socket type. A. P. Lundberg, G. C. Lundberg, P. A. Lundberg, and G. Pegg. 9463. Earthing clips for metallic-covered electric cables. F. de B. Hart and Anchor Cable Company Limited. 9464 Armoured flexible electrical cable. J. Bowyer and Anchor Cable Company Limited. 9474. Track fasteners. O. Imray. (National Malleable Castings Company, United States.) 9475. Rail joints. O. Imray. (National Malleable Castings Company, United States.) 9476. Guard rail tie-plates. O. Imray. (National Malleable Castings Company, United States.) 9477. Rail supports. O. Imray. (National Malleable Castings Company, United States.) 9479. Flanged tubes. O, Wehrle. 9483. Gear-cutting machines. Sir C. A. Parsons, A. Q. Carnegie and S. S. Cook. 9484. Capels or couplings for cables, ropes and for like purposes. J. S. Sparkes. 9498. Percussive hammer drills and the like. W. H. Wakfer and S. Peck. 9499. Manufacture of ammonia and other by-products in gas generators. H. Wade. (“ Montania ” Brennstoffverwertung G.m.b.H., Germany.) 9500. Lubricators for pneumatic and other fluid-operated tools. C. C. Wakefield. 9517. Method of and means for securing the blades of turbines or the like. J. Knight. [ 9518. Means for reducing losses of heat from steam pipes and steam engines, cylinders, and for other analogous purposes. A. Seeley. 9519. Safety suspending devices for pit cages and the like. A. S. Bryson. 9520. Miners’ and like safety lamps. D. Offord. 9546. Water-tube marine steam boilers. E. C. R. Marks. (Soc. Anon. Italiana Gio. Ansaldo and Co., Italy.) 9548. Machines for coiling wire. E. James. 9567. Means for connecting tachometers to locomotives and the like. G. Rensch. 9575. Machines applicable for use in taping articles such as cables. Fried. Krupp Akt. Ges. Grusonwerk. 9590. Enclosed electric furnace with upper charging chutes. Helfenstein Elektro-Ofen G.m.b.H. 9596. Water-tube marine steam boilers. E. C. R. Marks. (Soc. Anon. Italiana Gio. Ansaldo and Co., Italy.) 9597. Manufacture of primary explosives. R. Calvet. 9607. Electric-cable conduits. C. L. Drury. 9626. Hose or capels for gripping wire ropes. J. B. Thomson, M. Baird, and T. Beveridge. 9670. Water-tube boilers. Vulcan-Werke Hamburg and Stettin Akt.-Ges. 9678. Process and apparatus for the catalytic combustion of gaseous or vaporous combustibles. L. Schmidt and F. Krieger. 9690. Theodolites and like instruments. C. F. Casella and Co. Limited and R. M. Abraham. 9725. Magnetic separating machines. H. H. Thompson and A. E. Davies. 9730. Inspection elbow and like boxes for steel conduit or tubing for electric wires and cables. J. E. H. Fisher. 9742. Combustion of combustible mixtures: P. St. G. Kirke and Bonecourt Surface Combustion Limited. 9743. Combustion of combustible mixtures. C. D. McCourt and Bonecourt Surface Combustion Limited. 9755. Manufacture of water-softening agent. A. G. Bloxam. (Vereinigte Seidenfarberein, Germany). 9764. Valves for air compressors, fluid pumps and the like. W. A. Taylor. 9767. Conduits for electric cables, wires and the like. G. E. Carr. 9778. Rail joints. P. Yordon. 9790. Apparatus for producing artificial respiration. H. Simonis. 9799. Centrifugal pumps. E. A. Hansen. 9815. Plants for galvanising wire, sheets and other pro- ducts. N. K. Turnbull. 9820. Rolling, crushing and grinding mills. J. Paisley and W. P. Cruickshank. 9821. Rolling, crushing and grinding mills. J. Paisley and W. P. Cruickshank. 9840. Overwind - prevention gear for colliery winding engines. J. Smith. 9846. Steam superheating. S. Z. de Ferranti. 9849. Gear-cutting machines. T. Coventry, Smith and Coventry Limited and W. Anderson. 9857. Apparatus for scraping and cleaning boiler tubes. E. R. Walker. 9864. Mechanical stokers for boiler and like furnaces. G. de Grahl. 9867. Method for increasing the stability of sulphate lyes employed in the softening of water. W. Gunther. Complete Specifications Accepted. To be published on May 15. 1912. 1476. Centrifugal fans. Davidson. 1664. Process for the separation of solid paraffins, parti- cularly ozokerite-like hydrocarbons, from mineral oil residues, and viscous or semi-liquid natural products. Tanne and Oberlander. 3469. Smoke-preventing apparatus for steam boilers. Porter. 6168. Valve-gears for engines. Bever. 6947. Winding engines. Worth. 9540. Rolling metals. Wetcke. 9603. Apparatus for testing the consistency of bitumen, tar, and like liquids. Wood. 10147. Production of sulphur and sulphates from poly- thionate solutions. Feld. 10370. Treatment of peat and the like. Jameson, Valpy, and Buckle. 10381. Reduction or oxidation of metallic ore or the like. Bourcoud. 10626. Portable extensible conveyors. Fraser and Chalmers Limited, and Mitchell. 12803. Fire-bridges for furnaces. Marshall and Davies. 14927. Rivet and bolt making machines. Wallace. 15061. Means for producing superheated vapour. Lamplough. 15600. Blasting detonators for coalmining and like purposes. Maison. 19812. Heating of regenerative chamber ovens, especially such as are suitable for the manufacture of coke or gas. Lengersdorff. 19933. Steam pumps or the like. Boult. (M. T. Davidson Co.) 20226. Miners’ pick head. Johnson and Morris. 20663. Protective devices for electric circuits. British Thomson-Houston Company. (General Electric Co.) 23583. Machine for making ribbed sheet metal. White. 23679. Manufacture of steel sheets for use in making tin- plates. Bevan. 24687. Reducing valve for diving equipments. Maschinen- fabrik “ Westfalia” Akt.-Ges. 25639. Means for consuming smoke or the unburnt gases in steam-boiler furnaces. Ogden. 25657. Furnaces of boilers and the like. Chadwick. 27740. Centrifugal pumps. Wilson and Craib. 28094. Joint boxes for electrical cables. W. T. Henley’s Telegraph Works Company and Nichols. 28149. Respiratory apparatus. Thorne and Jenkins. 28443. Furnaces. Weidemann. 28965. Rails for railways and the like. Georgs-Marien- Bergwerkes und Hutten-Verein Akt.-Ges. 29681. Apparatus for handling bricks in stacked units. Penfield. 29720. Multi-layer steel castings. Imray. (Akt.-Ges der Briansker Schienen - Eisenhuttenwerke und Maschinenfabriken.) 1913. 61. Steam superheaters. Hoffmann. 1966. Conveyor, specially adapted for use as a coal face conveyor in collieries. Hirst. 4459. Draining or like pipes for mines. Seyer. 5108. Rotary grate for gas producers. Rehman. 5527. Centrifugal fans. Davidson. 5528. Centrifugal fans. Davidson. Complete Specifications open to Public Inspection before Acceptance. 1913. 7693. Process of and apparatus for determining the carbon content of ferruginous materials especially of steels. Szasz. 8284. Casting of metals. Melaun. 8635. Roasting furnaces for ores and the like. Gabrielli. 8796. Method of and apparatus for determining the specific weight of gases and mixtures of gas. Wolf. 8797. Ore-roasting furnaces. Gaillard. 9187. Apparatus for withdrawing rock and similar drills. Paul and another. PUBLICATIONS RECEIVED. * Twenty Years’Railway Statistics, 1893-1913,” by Fred C. C. Mathieson; price Is.; “ Revue Universelle des Mines et de la M6tallurgie ” (Tome 1, No. 3), March; “ Annales des Mines” (Tome 3, No. 3); “Transactions of the Mining and Geological Institute of India” (Vol. 7, Part 2), price 4s. ______________________ GOVERNMENT PUBLICATIONS. Any of the following publications may be obtained on application to this office at the price named post free. Explosion Report No. 205, at the Explosives and Chemical Products Limited, l|d. Bills: Children Employment Abroad, Id.; Companies Consolidation Amendment, l|d. Consular and Trade Reports: Persian Gulf, Bahrein Islands, 1911-12, 4|d. ; Turkey, Mosul, 1912, Id.; Peru, Iquitos, lid.; British Trade in Certain Colonies, Reports. 8d. Report of the Chief Registrar of Friendly Societies on Trade Unions for 1911, Is. l|d. U.S.A. Customs Tariff, Is. 4d.