Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 320
oints of boilers becomes more apparent,and of late years quadruple and even quintuple-rivetedbutt joints have in many instances come into use. Thequadruple butt joint when properly designed shows a THE BOILER 309 high efficiency, in some cases as high as 94.6 per cent.Fig. 100 illustrates a joint… … FIGURE 100. main plate and both the inside and outside coverplates or butt straps. The two outer rows reach through the main plateand inside cover plate only, the first outer row havingtwice the pitch of the inner rows, and the secondouter row has twice the pitch of the first. 310 ENGINEERING…
