Excerpt from A Manual of the Mechanics of Engineering and of the Construction of Machines, Vol. 2 of 3: Designed as a Text-Book for Technical Schools and Colleges, and for the Use of Engineers, Architects, Etc;; Section II., Application of Mechanics to Machines; Part I., Hydraulics and Hydraulic Motors The story of the gradual development of the German original of the present work is told in the prefaces of the author to the successive editions through which it has passed. The number of these editions shows sufficiently the favor with which the work has been received at home, and the prefaces themselves point out the many changes, additions, and improvements, and indicate the untiring labor and energy which have brought it to its present state of completion. 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.