1244 THE COLLIERY GUARDIAN. June 11, 1915. or liquid, are formed with a funnel-shaped con- nection between the cylinder and the suction pipe in conjunction with a trunk piston. 0. Haase, Germany. 3557/13. Charging cartridges for breathing apparatus. In apparatus for charging the regenerators of breathing apparatus, comprising a closed reser- voir with a measuring chamber, which is slid or rotated to the open cartridge, a guiding funnel corresponding in shape to the regenerator is provided, having distribution walls within it, and special means are employed for lower- ing a cartridge in line with the funnel. H. and B. Drager, Dragerwerke, Germany. 3672/13. Gas producers. In the gasification of fragmen- tary or fine fuels, air is passed downwards through the charge, and the gases evolved during volatilisation are conducted away as a whole or in fractions, separately from the gases evolved during gasification of the de-volatilised residue. The operation may be stopped after the de-volatilisation of the charge, and the remaining residue recovered as coke. The gases of the volatilisation period may be treated for recovering by-products, and may be subdivided by being conducted away at consecutive intervals. 1?. C. W. Timm, Germany (dated February 22, 1912). 3673/13. Gas generators. In a process for the gasification of fragmentary, fine grained, or powdery fuels with intermittent working by means of air travelling in a downward direction, the gasifi- cation is stopped before a layer of carbon is reached, which is no longer sufficient for the reduction of carbon dioxide. This layer of carbon is arranged with a considerably smaller cross section than that of the bulk of the fuel to be gasified. The hot gases given off towards the end of the gasification period serve for heating and kindling a freshly charged generator, and the diminishing differ- ence in pressure between the air supplied and the gas conducted away towards the close of gasification, operates a device for shutting off the air or gas conduit or both. The process may be carried out by introducing air and steam alternately, water gas as well as producer gas being generated. The fuel may be mixed with water before charging. F. 0. W. Timm, Ger- many (dated February 22, 1912). 3825/13. Electric switches; motor control systems. Relates to time-lag switches of the kind comprising an electro-magnet which pulls up a spriflg or gravity controlled switching plunger or arma- ture when energised, and which acts as an induction coil, after the exciting current has been switched off, to delay the fall of the plunger for a certain time. F. Krupp Akt.- Ges., Germany (dated March 15, 1912). 3876/13. Filtering air and gases. Apparatus for purifying air and gases of the kind in which the dust is separated by a filtering drum, and the dust is blown away at intervals by a reverse current and conveyed into a dust collector. J. Border, Germany (dated February 17, 1912). *.* Copies of any of the above specifications can be supplied at the price of Is. post free. GOVERNMENT PUBLICATIONS. *** Any of the following publications may be obtained on application to this office at the price named post free. Education in Scotland Report for 1914-15, 4Jd. Manual of Emergency Legislation Supplement No. 3, to April 30, 1915, 2s. lid. Law and Customs of War : 13th Report, l|d. Ministry of Munitions Bill, IJd. Leeward Islands Report, 1913-14, 5Jd. East India Financial Statement and Budget, 1915-16, 2s. lOd. Trade and Navigation Accounts for May, 1915, Is. lOd. Customs Form, No. 23, 9d. per quire. COAL MINING ORGANISATION COMMITTEE : Report of the Departmental Committee appointed to enquire into the Conditions Prevailing in the Coal Mining Industry due to the War—Part I. (Cd. 7939), 7d. PUBLICATIONS RECEIVED. Northern Coal, Iron and Steel Companies, 1915. Cardiff : The Business Statistics Company Limited. Price, Is. The Production of Coal in 1913 (Mineral Resources of the United States, 1913, Part 2, No. 31). By E. W. Parker. Washington : Government Printing Office. Thirty-Fifth Annual Report of the Director of the United States Geological Survey, 1914. Washington :• Government Printing Office. “ The Journal of the South African Institute of Engi- neers ” (Vol. 13, Nos. 9 and 10), May, price 2s.; “ The Journal of the Chemical, Metallurgical, and Mining Society of South Africa ” (Vol. 15, No. 9), April, price 3s.; “ Preliminary Report on the Mineral Production of Canada in 1914,” by J. McLeish (Canada Department of Mines); “ Report on the Non-Metallic Minerals Used in the Canadian Manufacturing Industries,” by Howells Frechette (Canada Department of Mines, No. 305); “ Proceedings of the Institution of Mechanical Engi- neers ” Parts 3 and 4, 1914); “List of Members and Articles and By-Laws of the Institution of Mechanical Engineers, March 1, 1915.” United States Geological Survey : “ Mineral Resources of the United States, 1913 ” (Part 1, No. A); “ Mineral Products of the United States : Review of the Conditions and Output in 1912 and 1913,” by E. W. Parker, with a “ Summary of Mineral Produc- tion in 1913” by W. T. Thom; ditto (Part 1, No. 12), “ The Production of Iron Ore, Pig Iron, and Steel in 1913,” by E. F. Burchard; ditto (Part 1, No. 17), “ Gold, Silver, Copper, Lead and Zinc in California and Oregon in 1913,” by C. G. Yale; ditto (Part 1, No. 18), “ Copper in 1913,” by B. S. Butler; ditto (Part 1, No. 19), “ Gold, Silver, Copper, Leal and Zinc in Montana in 1913,” by V. C. Heikes; ditto (Part 1, No. 20), ‘‘Zinc and Cadmium in 1913,” by C. C. Siebenthal; ditto (Part 1, No. 21), “ Gold, Silver, Copper, Lead and Zinc in Arizona in 1913,” by V. C. Heikes; ditto (Part 1, No. 22), “ Lead in 1913,” by C. E. Siebenthal; ditto (Part 1, No. 23), “ The Production of Metals and Metallic Ores in 1912 and 1913,” by J. P. Dunlop; ‘‘Gold, Silver, Copper, Lead and Zinc in Idaho and Washington in 1913,” by C. N. Gerry; ditto (Part 1, No. 25), “Gold, Silver, Copper, Lead and Zinc In Nevada in 1913,” by V. C. Heikes; ditto (Part 1, No. 26), “ Gold and Silver in 1913,” by H. D. McCaskey;'ditto (Part 2, No. 29), “ Statistics of the Clay Working Industries of the United States in 1913,” by Jefferson Middleton, with notes on “ The Occurrence and the Use of Flint Clay” by J. H. Hance; ditto Part 2, No. 30), “ Gems and Precious Stones in 1913,” by D. B. Stennett; ditto (Part 2, No. 34), “ The Produc- tion of Natural Gas in 1913,” by B. Hill: ditto (Part 2, No. 35), “ The Source, Manufacture and Use of Lime,” by E. F. Burchard and W. E. Emley; ditto (Part 2, Ho. 32), “ The Production of Petroleum in 1913,” by D. T. Day; ditto (Part 2, No. 33), “ The Stone Industry in the United States in 1913,” by E. F. Burchard. United States Geological Survey : (Bulletin No. 541), “ Contribu- tions to Economic Geology, 1912 (Part 2) Mineral. Fuels,” by M. R. Campbell; ditto (Bulletin 561), “Results of Spirit Levelling in Hawaii, 1910 to 1913,” by R. B. Marshall; ditto (Bulletin 562), “ Results of Spirit Level- ling in Virginia, 1900 to 1913,” by R. B. Marshall; ditto (Bulletin 570), “ Results of Spirit Levelling in Wisconsin, 1894 to 1914,” by R. B. Marshall; ditto (Bulletin 572), “ Results of Spirit Levelling in Nebraska, 1896 to 1913, by R. B. Marshall; ditto (Bulletin 572), “ Geology of the Hanagita Bremner Region, Alaska,” by F. H. Moffit; (Bulletin 580—J), “ The Phosphate Deposits of South Carolina,” by G. S. Rogers; (Bulletin 580—M), “The Rochester Mining District, Nevada,” by F. C. Schvader; (Bulletin 580—N), “ The Elleston Phosphate Field, Montana,” by R. W. Stone and C. A. Bonine; (Bulletin 580—0), “ The Rutile Deposits of the Eastern United States,” by T. L. Watson: (Bulletin 580—D), “ Geology and Oil Prospects in Waltham Priest, Bitternwater, and Peachtree Valleys, California, with Notes on Coal,” bv R. W. Pack and W. A. English; (Bulletin 586), “ Slate in the United States,” by T. N. Dale and others; (Bulletin 588), “ The Constitution of the Natural Sili- cates,” by F. W. Clarke; (Bulletin 590), “ Reconnaissance of the Geology and Oil Prospects of N.W. Oregon,” by C. W. Washbourne; (Bulletin 600), “The Glacier National Park,” by M. R. Campbell; (Bulletin 592), ” Mineral Resources of Alaska : Report on Progress of Investigations in 1913,” by A. H. Brooks and others; (Water Supply Paper 339), “ Quality of the Surface Waters of Washington,” by W. Van Winkle: (Water Supply Paper 340—C), “ Stream Gauging Stations and Publications Relating to Water Resources, 1885 to 1913 (Part 3), Ohio River Basin,” by B. D. Wood; (Water Supply Paper 340—D), “ Ditto (Part 3), St. Lawrence River Basin,” by B. D. Wood; (Water Supply Paper 340—E), “ Ditto (Part 5), Hudson Bay and Upper Missis- sippi River Drainage Basins,” by B. D. Wood; (Water Supply Paper 345—G), “ The Water Resources of Butte, Montana,” by O. E. Meinzer; (Water Supply Paper 344), “ Deschutes River, Oregon, and its Utilisation,” by F. F. Henshaw, J. H. Lewis, and E. J. McCaustland; (Water Supply Paper 348), “ Profile Surveys in Hood and Sandy River Basins, Oregon,” by R. B. Marshall; (Water Supply Paper 364), “ Water Analyses from the Laboratory of the United States Geological Survey,” by F. W. Clarke; Water Supply Paper 366), “ Profile Surveys of Snoqual- mie, Soltau, and Skykomish Rivers, Washington,” by R. B. Marshall; (Water Supply Paper 347), “Profile Surveys in Snake River Basin, Idaho,” by R. B. Marshall: (Water Supply Paper 323), “Surface Water Supply of the United States in 1912 (Part 8), Western Gulf of Mexico Basins,” by W. W. Follett, R. Follansbee, and G. A. Gray; (Water Supply Paper 329), “Ditto (Part 9), Colorado River Basin," by R. Follansbee, E. A. Porter, and H. D. Padget; (Water Supply Paper 330), “ Ditto (Part 10), The Great Basin,” by F. F. Henshaw, E. A. Porter, and G. C. Stevens; (Water Supply Paper 335), “ Geology and Underground Waters of the South- Eastern Part of the Texas Coastal Plan,” by A. Deussen; (Water Supply Paper 326), “ Surface Water Supply of the United States, 1912 (Part 6), Missouri River Basin," by W. A. Lamb, R. Follansbee, and H. D. Padget; (Pro- fessional Paper 90—F), “ A Reconnaissance in the Canyon Range. West Central Utah.” by G. F. Loughlin; (Pro- fessional Paper 90—G), “ The Montana Group of N.W. Montana,” by E. Stebinger; “ Professional Paper 90—H), “ A Deep Well at Charleston, South Carolina," by L. W. Stephenson, with a “ Report on the Mineralogy of the Water ” by Chase Palmer. “ Cassier’s Engineering Monthly ” (Vol. 47, No. 6), June, price Is. CATALOGUES AND PRICE LISTS RECEIVED. A handy appliance of great convenience, by means of which considerable economies may be effected in workshops, factories, etc.—or, indeed, in any places in which washing accommodation is provided for a number of people—is the “ K & W ” liquid soap fountain, which gives automatically a constant supply of an antiseptic liquid soap, both pleasant in use and efficacious in action. It is constructed of porce- lain on the well-known principle of the glass bird fountain. The only attention it requires is refilling when empty— usually about once a week or fortnight. The “ K & W ” fountain is sold by the “ K & W ” Soap Fountain Company, of 8, Breams-buildings, London, E.C. A handsome little brochure has reached us from the Steel Barrel Company Limited, describing the processes of manu- facture employed at their Uxbridge Works in the produc- tion of steel barrels and casks for the transport of oil, benzol, and other chemical products. A feature is the fixing of the rolling hoops by welding, and a more .recent development is the manufacture of small electrically welded cylindrical drums, in which no end hoops are necessary. The company have also introduced a new system of petrol storage and measurement, consisting of an underground welded tank, which is filled under seal by hose or by pump from the tank wagon, and is equipped with a dipping rod for measuring. A semi-rotary pump is used to raise the spirit into the measuring tank, from which it is dis- tributed through a flexible hose. The firm, in addition, make welded steel expansion pipe for steam turbine exhaust, exhaust boxes, etc. We have received from the British Steel Piling Company (Dock House, Billiter-street, E.C.) a pamphlet regarding the “ Zenith ” steam friction winch, which can be used both for haulage or hoisting work, and for pile driving in bad ground or confined spaces. The winch has link motion reversing gear, and consists of two barrels. One is operated by means of a Heywood ” patent friction clutch, driven through single gear, and capable of working a 2-ton drop hammer at a speed of 160 ft. per minute, thus giving between 30 and 40 blows per minute, according to the length of drop. The second barrel is operated by means of a claw dutch through double gear, and will lift four tons at a speed of 65 ft. per minute. Both barrels have powerful screw brakes, and a powerful warping drum is provided for moving the plant, or for other work. The stop valve is of the “ Cook’s ” patent governor type. Another leaflet illustrates the B.S.P. patent pile shoe, and a further pamphlet gives a short synopsis of the general catalogue issued by the firm describing various styles of steel sheet piling and pile- driving equipment. C A NUT V Pressed Steel PAIN l\L I Barrow Bodies STEEL & FILES. Wired Edges : No Rivets : No Seams : No Joints : Last much longer than riveted Bodies. Joseph Sankey & Sons Ltd., Hadley, Salop. FANSHAWE & MARRIOTT ATKINSON, Steel and File Manufacturers, Ecclesfield, near Sheffield. Telegraphic Address: “ Fansha, Ecclesfield.” PECKETT & SONS LTD., Bristol. Speciality— TANK LOCOMOTIVES. Locos, of various sizes specially designed for COLLIERIES, IRONWORKS, CONTRACTORS, &c., * always in Stock, Heady for Immediate Delivery. Photographs, Prices and Specifi- cations on application. Tel. Address—“ Peckett, Bristol.” Telephone—No. 6 Fishponds. Established 1864. •jM? W • -- . __ LIMITED, < MINING AND ELECTRICAL MACHINERY OF