Book Description

Excerpt from Forged Steel Water-Tube Marine Boilers The great point of difference in the several types of water-tube boilers now on the market, lies in the character of the tubes used. These are either simple straight tubes, simple bent tubes or compound straight tubes, the latter being constructed with a smaller tube inside of each main tube for the purpose of promoting circulation, one end of each main tube being closed. The bent-tube type comprises a great variety of designs, the tubes being either actually bent to certain sinuous forms, or by use of elbows or return bends in connection with short sections of straight tubing. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.