Rudimentary Treatise on the Construction of Door Locks for Commercial and Domestic Purposes PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 172
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 172
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Author: A. C. Hobbs
Publisher:
ISBN:
Category : Locks and keys
Languages : en
Pages : 204
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Author: A. C. Hobbs
Publisher:
ISBN:
Category : Locks and keys
Languages : en
Pages : 194
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Author: Anonymous
Publisher: Legare Street Press
ISBN: 9781015256835
Category :
Languages : en
Pages : 214
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This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: A. C. Hobbs
Publisher: Forgotten Books
ISBN: 9781397349859
Category : Technology & Engineering
Languages : en
Pages : 186
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Excerpt from Rudimentary Treatise on the Construction of Door Locks, for Commercial and Domestic Purposes: With Mr. Smyth's Letter on the Bramah Locks It should also be stated that, during the progress of the work, Mr. Weale, at my request, wrote to Messrs. Bramah, and also to Messrs. Chubb, informing them that a Rudimentary Treatise on the Construction of Locks was being prepared, and requesting them to state in writing what alterations or improvements they had made in their locks since the date of the Great Exhibition. The communications which we have received from these celebrated firms are inserted verbatim, in their proper places, in the present work. 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.
Author: A. C. Hobbs
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: A. C. Hobbs
Publisher:
ISBN:
Category :
Languages : en
Pages : 312
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The manufacture of locks, and a consideration of the mechanical principles involved in their construction and security, have never yet been treated with any degree of fulness in an English work. Lock-making has occupied a large amount of ingenuity, and lock-patents have been obtained in considerable number, though not always, we are satisfied, with a commensurate return for the expense incurred,--but lock-philosophy (if so it may be designated) has not been largely attended to.And yet it may safely be said that much which is both mechanically and commercially important is comprised in a lock. Every improvement in the manufacture of iron, steel, and brass--that is, in the tool-making and machine-making processes--may be made to reflect its light on the lock-manufacture; the stamping, the casting, the planing, the slotting, the screw-cutting, the polishing of metals,--all, in proportion as they are improved, impart some of their aid to the lock-maker. Then, in the finer kinds of locks, the works are so delicate as to approach to the nicety of clockwork; thereby combining the manipulative skill of a talented artisan with the rougher mechanical work of the smith. The principles of mechanical science are also appreciated by many lock-makers. The lever, the inclined plane, the eccentric, the cam, the screw, the wheel and pinion, the ratchet, the spring,--all are brought to bear on the internal mechanism of locks, frequently in many novel combinations.
Author: Joseph Glynn
Publisher:
ISBN:
Category : Cranes, derricks
Languages : en
Pages : 172
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Author: Edmund Beckett DENISON (afterwards BECKETT (Edmund) Baron Grimthorpe.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 426
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Author: George Price (of Wolverhampton.)
Publisher: London : Simpkin, Marshall
ISBN:
Category : Locks and keys
Languages : en
Pages : 1000
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Book Description
