Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 112
veted butt 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 3*6 illustrates a jointof this kind, and the dimensions are as follows: T=y2 inch. D=if inch. A=.69 inch. Boiler Construction… … 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…
