Mechanics of the Sewing Machine (Classic Reprint) - Couverture souple

Singer Sewing Machine Company

Couverture souple

ISBN 10 : 0282476016 ISBN 13 : 9780282476014

Editeur : Forgotten Books, 2018

Synopsis

Excerpt from Mechanics of the Sewing MachineAbout the PublisherForgotten Books publishes hundreds of thousands of rare and classic books.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. This text has been digitally restored from a historical edition. Some errors may persist, however we consider it worth publishing due to the work's historical value.The digital edition of all books may be viewed on our website before purchase.

A propos du livre

Présentation de l'éditeur

Measure the distance the weight must move when placed at toe end, while the wheel is making one-half a revolution. Measure the distance the weight moves, when placed at the heel end of the pedal while the driving wheel is making one-half a revolution. From the observations how will one calculate the amount of work one does to cause the driving wheel to make a complete revolution? Read paragraphs 13, 15, 16 and 17 in the textbook. Calculate the work put forth for case a, band c. Observe how many stitches are made while the driving wheel is making one revolution. Observe how many stitches are necessary to sew an inch of material. Calculate how much work is necessary to sew a yard in length when no cloth is under the presser foot, then when one thickness, and finally when two thicknesses of cloth are imder the presser foot. The following form is suggested for recording your results; use it or what is better make one for yourself. Should the distance between the individual observations be the same size as that between the series of observations and the series of calculations? Observations A AB BF orce applied atF orce applied at The distance the The distance the toe end or effort heel end or effort weight at the toe weight at the heel ab ca bc end moves, or end moves, or effort distance. effort distance. A v. Leave two (2) spaces between the two (2) sets of observations. Why? Number of stitches made during one revolution of the driving wheel Number stitches to an inch Time to sew a yard, when one sews at the ordinary rateL eave four (4) spaces between the observations and the calculations.
(Typographical errors above are due to OCR software and don't occur in the book.)

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Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2018
• Langue: anglais
• ISBN 10: 0282476016
• ISBN 13: 9780282476014
• Reliure: Broché
• Nombre de pages: 85
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