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 122
an is to rivet6-inch channel bars across the head, inside above the tubes,the number of bars depending upon the height of the seg-ment to be stayed. The channel bars are drilled to correspond with the holesthat are drilled in the plate to receive the stay rods, whichlatter are then secured by… … Fig. 44
