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 80; 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 Pautpine Furnace, Crecit, Onto.—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, 33 inches; diam- 
eter at throat, 38 inches; diameter at boshes, 94 feet; diameter at tuyeres, about 40 
fnches; number of tuyeres, 3; diameter at nozzle of tuyeres, 3; inches; temperature 
of blast, 900 degrees; pressure of blast, 14 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, 73 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, 74 
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. 
