Reseña del editor:
Excerpt from Practice and Theory of the Injector
TO henri jacques giffard, an eminent French mathe matician and engineer, belongs the honor of having invented the simplest apparatus for feeding boilers that has ever been devised, utilizing in a novel and ingenious way the latent power of a discharging jet of steam.
From the time of his graduation from L' Ecole Centrale in 1849, Gifi'ard had directed his energies to the study of aeronautics and had spent much time in developing a light steam motor for propelling balloons; it is, therefore, not strange that he should also have attempted to devise a com pact and convenient substitute for the steam pumps then in use. Already a number of patents had been granted him for the application of the steam engine to aerial navigation and for other correlated inventions When, on May 8, 1858, letters patent Were issued for L' [njedeur Automoteur. His early technical education and wonderful ingenuity well fitted him for breaking away from the old beaten paths and start ing out on a new line of discovery; and in view of the originality of his work he fully deserved the unqualified praise accorded him by his contemporaries.
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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.
Reseña del editor:
Excerpt from Practice and Theory of the Injector
For stationary service the Injector did not at first become popular; possibly on account of the mystery that seemed to surround its working, and the general skepticism as to its practical wearing powers. Some of the contributions and queries published in the engineering papers of the day, are very amusing, and a certain writer in one of the most prominent weeklies proves most conclusively to his own and probably to some of his readers' satisfaction, that the new method of feeding boilers was an absolute impossibility. The injector was, however, adopted in many places and continued to give satisfaction. In the first trip of the Great Eastern Injectors were used in place of pumps, but for some reason not explained, they were subsequently removed; this may have been owing to the temperature of the feed water being too warm for efficient service, as this was the weak point of the first injectors constructed.
The first injector applied to a locomotive in England was by Mr. J. Cross, Superintendent of the St. Helens Railway. It was successful from the start, although not large enough for the purpose and therefore a No. 8 was substituted, which proved to be entirely satisfactory.
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.
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