THE AMERICAN COTTON SPINNER, AND MANAGERS' AND CARDERS' GUIDE: A PRACTICAL TREATISE ON COTTON SPINNING: GIVING THE DIMENSIONS AND SPEED OF MACHINERY, DRAUGHT AND OF RECENT IMPROVEMENTS. TOGETHER WITH RULES AND EXAMPLES FOR MAKING CHANGES IN THE SIZE ANL COMPILED FROM THE PAPERS OF THE LATE ROBERT H. BAIRD. PHILADELPHIA: HENRY CAREY BAIRD, No. 406 WALNUT STREET. Entered, according to the Act of Congress, in the year 1851, by A. HART, in the Clerk's office of the District Court of the United States, for the Eastern District of Pennsylı ani PHILADELPHIA: COLLINS, PRINTER, 705 JAYNE STREET. PREFACE. THE following pages are chiefly the work of the late Robert H. Baird, well known as an expert cotton spinner. But, as the manufacture of cotton is rapidly progressing, and his manuscript was written some few years since, it was found necessary to make such additions to it, as would bring the subject up to the present time. It is not the intention of this treatise, to give a perfect description of cotton machinery, such as is at present in use; the chief object is, to furnish the managers and foremen of cotton factories with a guide, by which to calculate the draught and twist of the various machines, and afford them some assistance in managing the machinery. But little could be said on the subject of weaving, as it has been already ably treated of in other works of merit; still, a treatise on weaving is very much needed, particularly on plain weaving. But, as this subject, if fully developed, would occupy more space and absorb more means than can be assigned to it in this instance, we hesitated about entering fully upon it at this time, and intend, at some future period, to offer to the public an elaborate work on weaving. |