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26 MARINE REVIEW. [ May 23, SAFETY TREAD FOR ENGINE ROOMS, STAIRS, ETC. Attention is directed to the Mason safety tread for ship ladders, gang- ways, engine rooms, cabin stairs, etc., for the reason that it has been suc- cessfully used on the steamers Paris and St. Louis of the American line and on a large number of battleships and cruisers, including the Brooklyn, Iowa, Indiana, Massachusetts, Kentucky, Kearsarge, Minneapolis, Co- lumbia, Philadelphia, Yorktown, Machias, Ranger, Bancroft and Lan- caster. Upon the Indiana one of the turret platiorms has been covered with the safety tread in place of rubber, making a perfectly non-slipping mat which is not affected by oil. It is argued in favor of this tread that it is a positive safeguard against slipping, whether dry or wet; that it is easily applied; that it will never become slippery and that it is very dur- able. It consists of a base of hard rolled steel, from which rise ribs forming dovetail grooves. These grooves are filled with lead solidly rolled in, under heavy pressure, and firmly held by the dovetail. The surface of the lead is of equal height with the surface of the ribs, and can be worn down no faster than the steel is worn. The spaces between the lines of lead contain V grooves, which are an important factor in holding the foot, and also serve to collect all dust and dirt, which may be easily swept out. The tread is also made with a base of delta metal or hard brass composition, equally durable with the steel, which is largely used where an especially handsome appearance is desired. The bright- ness of the delta metal renders it especially desirable for ship use. The steel is usually galvanized. In public buildings and in mercantile buildings all over the country the use of this material is very extensive. The headquarters of the Amer- ican Mason Safety Tread Co. is at 40 Water street, Boston, and the factory at Lowell, Mass. Branch offices are maintained in New York, Chicago, Philadelphia, Cleveland, Cincinnati, Buffalo, Pittsburg, Port- land and Washington and agencies at several other points throughout the country. TRADE NOTES. Chicago offices of the Fairmount Coal Mining Co. of West Virginia are now located in rooms 1268 to 1280 Old Colony building. An order for forty-three stockless anchors, amounting to a little over 170,000 Ibs., has been placed with the Baldt Anchor Co. of Chester, Pa., by the American Ship Building Co. (consolidated ship yards of the great lakes). It is reported regarding the Ward line steamship Santiago, which was recently equipped with Sturtevant fans for forced draft, that as a result two Scotch boilers, under forced draft, are now doing the work which originally required four similar boilers, under natural draft. and further, that a fuel saving of four tons of coal per day has been made, the a average revolutions increased by three per minute, and that a considerable portion of the space originally occupied by coal bunkers has now been converted into valuable freight conveying space. The Boston & Lockport Block Co. of Boston, Mass., well known manufacturers of blocks for cargo hoists and other purposes, report a steady increase in trade, especially for blocks of large size and for trucks which they are selling on a large scale to new industrial enterprises all over the country. Ship masters who have been annoyed by variation in readings of logs in cold weather, due to the lubricating oil of the log congealing, will be interested in knowing that the New Bedford Oil Co., East Boston, Mass.. manufactures an oil specially suited to this purpose. The oil took the highest award--a gold medal--at the Paris exposition. The American Bridge Co, will furnish two deck plate girder spans for the Nacozari Railroad Co. of Mexico; will furnish the Atchison, Topeka & Santa Fe railroad with a red rock cantilever bridge over the Colorado river, and will furnish the steel work for the Rogers hotel to be erected at the corner of Seventh avenue and Fifty-fifth street, New York City. CHANGE OF TRAINS ON THE B.&O.R.R. On and after Sunday, May 19, the through Chicago sleeper will leave Cleveland daily at 6:30 p. m., instead of 9:35 p. m., arriving Chicago 6:50 following morning. On same date a new train will be placed in service, leaving Cleveland daily at 11:20 p. m., arriving at Pittsburg 6:40 a. m., Washington 4:50 p. m., Baltimore 5:53 p. m., Philadelphia 8:15 p. m. and New York 10:40 p. m., with sleeper to Pittsburg and observation parlor and chair cars beyond, giving daylight ride through the historic mountain scenery. The afternoon train with through sleeper to Washington and Baltimore will leave Cleveland daily at 3:00 p. m., instead of 3:10 Dp. i May 23 U. S. Engineer Office, Cincinnati, O., April 27, 1901. Sealed proposals for building 500 feet length of Chanoine dam of navigable pass at Dam No. 4, Ohio River, will be received here until 2 p. m., June 4, 1901, and then publicly opened. Information furnished on application to Wm. Martin, Resident Engineer, Davis Island Dam, Bellevue, Pa., or to this office. Wm H. Bixby, Maj., Engrs. May 23. U. S. Engineer Office, Jones Building, De- troit, Mich., May 6, 1901. Sealed proposals for dredging, and other work required for removing obstructions to navigation in main Ship Channel between head of St. Clair and mouth of Detroit rivers, will be received here until 12 noon (Standard time), May 28, 1901, and then publicly opened. Information fur- nished on application. G. J. Lydecker, Lt. Col., Engrs. May 23. 7 PISA IW OO SS IIAL EE SD) (ODN LID TV RAO Broad and Arch Sts., Philadelphia, Pa. STRUCTURAL STEEL SUPPLIED BY THE AMERICAN BRICSGE COMPANY, PENCOYD PLANT. United Gas Improvement Co. Building, Y 3 Buildings, Bridges, Roofs, Trusses. Mills, Factories, Race Stands, Public Markets, Power Houses, Car Sheds, Etc., Etc. Steel Frame Work for American Bridge Company A Zz General Offices, 100 Broadway, N. Y. Branch Offices throughout the country European Office: LONDON ) LILLIBRIOGE, N Y.. 2I-166 BDO CEL P. ODL LD SIAC BEI IG DD | : | |