Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 112
utt joints have inmany instances come into use. The quadruple butt jointwhen properly designed shows a high efficiency, in somecases as high as 94.6 per cent. Figure 36 illustrates a jointof this kind, and the dimensions are as follows: T=y2 inch. D=ff inch. A=.69 inch. Boiler Construction 99 P,… … Fig. 36quadruple riveted butt joint The two outer rows reach through the main plate andinside cover plate only, the first outer row having twicethe pitch of the inner rows, and the second outer row hastwice the pitch of the first. Taking a strip or section of plate 15 inches wide (pitchof outer…
