Publisher's Synopsis
Excerpt from Electrician and Mechanic, Vol. 24: January, 1912-June, 1912
In this formula, P equals the mean effective pressure, L equals the length of the engine stroke, A equals the area of the engine piston, and N equals the number of revolutions per minute. P is measured in pounds per square inch, L in feet, and A in square inches. Thus it is at once seen that plan gives us the work done in foot-pounds, and since a horse-power is the quantity of work equivalent to the raising of lbs. 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.