. American engineer and railroad journal . tted with an out-side and inside welt. The outside welt, however, is but Ij , and has two rows of rivets, one iii each side of thesheet, while the inner welt is of sufficient width to takethefour rows. The dome is riveted to the base, which is in turnriveted to the barrel, as described in our last issue. The dry pipe has an internal diameter of 6 in., ami is carried in slingsriveted to the shell, as shown in one ol the cross si extension of the smoke-box is of ,•,, in. steel, with a li \er of the same thickness on the bottom. tire do
. American engineer and railroad journal . tted with an out-side and inside welt. The outside welt, however, is but Ij , and has two rows of rivets, one iii each side of thesheet, while the inner welt is of sufficient width to takethefour rows. The dome is riveted to the base, which is in turnriveted to the barrel, as described in our last issue. The dry pipe has an internal diameter of 6 in., ami is carried in slingsriveted to the shell, as shown in one ol the cross si extension of the smoke-box is of ,•,, in. steel, with a li \er of the same thickness on the bottom. tire door, and the space helow the grates, is .scj. ft.;the heating surface of the lubes measured on the outside is sq. ft., or a total of 1, sq ft., making the nitioOf urate to heating surface 1 to AIR-PUMPS FOR THE UNITED STATES BATTLESHIP TEXAS. We have from time to time illustrated some of the detailsof the machinery on the United States battleship Texas, andthrough the courtesy of the Richmond Locomotive Works,. AIR-PUMPS YOU THE PKOPELLINU ENGINES OF TUB LMlKK STATES IIAITLKSII1P TEXAS. The tire-box is formed of side and back sheets having of rVm., and tube and crown sheets |-in. thick, thefront tube sheet is i in thick, and (he back head ,:,., in. Theurates have an area of sip ft. ; the healing surface olthe tire-box, deducting the sectional area of the tubes, the who were the contractors, we are now able to present illustra-tions and a description of the air pumps used in connectionwith the main engines. There are two single acting, vertical air-pumps for eachprspelling engine; and they are worked by a two-cylinder. Vol. I,XIX. No. AND RAILROAD JOURNAL. 313
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
