Excerpt from The London Journal of Arts and Sciences, Vol. 9: Containing Full Descriptions of the Principles and Details of Every New Patent, Also Original Communications on Objects Connected With Science and Philosophy, Particularly Such as Embrace the Most Recent Inventions and Discoveries in Practical Mechanics<br><br>Journal OF arts and sciences, the Proprie tors beg respectfully to express their thanks for the steady support which this Work has received from its commencement, in the beginning of the year 1820; and for the permanent foundation Upon which it is now established by a numerous and extended. Circle 'of scientific readers, as a standard work of reference for all improvements in the various branches of the Manufacturing Arts.<br><br>Before the commencement of this Journal, the details Of recently patented inventions were almost exclusively confined to the pages of one respectable periodical publication, the repertory OF arts, manufactures, and agriculture; a work comprehending a considerable range of valuable in formation connected with those branches of science, but defective in one point, namely, that it embraced only a few, not the whole of the subjects for which Patents had been taken 5 and consequently, failed in the very important feature of representing the actual state of improvement in the Mechanical Arts.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>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.