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 18
and the drum iscut away at these two points to make connection with insideof water leg, the opening thus made being strengthenedby bridges and special stays, so as to preserve the originalstrength. The shells are cylinders with heads dished to form 1 Heine Safety Boiler 9 parts of a true sphere.… … Fig. 5375 h. p. heine boiler heads are therefore free to follow their natural lines ofexpansion when put under pressure. Where flat headshave to be braced to the sides of the shell, both suffer localdistortions where the feet of the braces are riveted to them,making the calculations of their…
