PAULDING COUNTY. 351 



Blast. — Kind of engine, upright; size of steam cylinder, 26 inches in diameter; size 

 of blast cylinder, 40 inches in diameter, 26 feet long; stroke of piston per minute, 

 about 30 ; pressure of steam, 40 to 50 pounds ; blast ovens used, Pollock's. 



Remarks. — Closed or open top: open, but will be closed. How waste gases are 

 utilized: in heating blast and making steam. Kind of fire-brick used: Rochester, 

 Pa. (Samuel Barnes, maker). Average length of campaign, eight months. 



The Paulding Furnace, Cecil, Ohio. — Proprietors, Evans, Rodgers & Co. ; Super- 

 intendent, N. Evans, Cecil, Ohio. 



Dimensions of the Furnace. — Height of stack, 40 feet ; height of boshes, 8 feet ; height 

 of hearth, 6 feet; height of tuyeres, 32 inches; diameter of tuyeres, 3 J inches ;. diam- 

 eter at throat, 38 inches; diameter at boshes, 9i feet; diameter at tuyeres, about 40 

 inches ; number of tuyeres, 3 ; diameter at nozzle of tuyeres, 3 J inches ; temperature 

 of blast, 900 degrees; pressure of blast, li pounds per square inch. . 



Ores. — Kind, Lake Superior; per cent., 66 ; cost, $10. Location of mine, near Mar- 

 quette, Michigan. Not roasted. 

 Fuel— Charcoal ; obtained at the furnace ; cost, 7£ cents per bushel. 

 Flux. — Limestone, Upper Corniferous. Obtained section 17, Defiance, Defiance 

 county. Cost, $1.50 per perch at the furnace. 



Charge. — Ore, 500 pounds ; coal, 22 bushels ; limestone, 40 pounds. Amount in 

 twenty-four hours, about 80 charges. 



Product. — Amount in twenty-four hours, 11 tons. Kind of iron, all kinds. About 

 five-sixths of all is gray iron. 



Blast. — Kind of blast engine used, horizontal; size of steam cylinder, 18 inches; 

 pressure of steam, about 60 pounds ; blast oven used, old plan of cylinders and pipes, 

 enlarged ; piston-strokes per minute, 25. 



Remarks. — Furnace built by the company in 1864-5. Length of time in blast, 7-J 

 months. Average length of campaign, 8 months. Waste gases used in heating 

 blast and generating steam. Kind of fire-brick used, Chenango. Cost, including 

 freight, $80 per thousand. Annual production: 1869, 2,788 tons; 1870, 2,494 tons; 

 1871, 2,725 tons. Price of iron : in 1869, about $44 ; in 1870, about $38 ; in 1871, $40. 

 Markets, Cleveland and Fort Wayne. Amount of fuel per ton of iron, 140 bushels. 

 Close or open top, open. 



