A Text-Book of Laying Off: Or the Geometry of Shipbuilding (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from A Text-Book of Laying Off: Or the Geometry of Shipbuilding

The writers have long been of the opinion that a new work on the subject of Laying Off, adapted for the use of students, had become necessary. It came to their knowledge that both were engaged in preparing such a text-book, and this led to a collabora tion, the present work being the result.

One difficulty in the preparation of such a book is that practice varies considerably in different building yards and in different shipbuilding centres. The principle adopted has been to describe processes and methods which are known to the authors and which are found to be satisfactory in practice. If other methods come under the reader's notice they may be compared with those indicated herein.

It has been thought desirable to provide an introductory chapter on the principles of descriptive geometry in order to lay a satisfactory foundation of knowledge for the subsequent work.

Although the work of laying off is mainly done by a special class of skilled workmen, it is considered very desirable that ship draughtsmen and students of Naval Architecture should have an acquaintance with the subject. In many cases it is not found possible for such students actually to do work themselves on the mould loft floor. It is hoped that the present work will be found useful to this large class.

It is strongly recommended that students, in addition to reading the text, should draw out for themselves the various examples that are scattered throughout the book.

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