File:Treatise on marine and naval architecture, or, Theory and practice blended in ship building. Illustrated with more than 50 engravings (1852) (14766491931).jpg

Identifier: treatiseonmarine00grif (find matches)
Title: Treatise on marine and naval architecture, or, Theory and practice blended in ship building. Illustrated with more than 50 engravings
Year: 1852 (1850s)
Authors: Griffiths, John W. (John Willis), 1809-1882
Subjects: Naval architecture
Publisher: New York : D. Appleton
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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r, they will agree;Plate 16 is designed to illustrate thestern frame, and the manner of opera-tion forlayingthem down and construct-ing the same. It is sometimes the casethat a second fashion-piece is required,to enable us to fdl out to the main orfirst one; this is generally short, ex-tending across three or four of the low-er transoms, and as low as the side line ;when this is required, we have only toset off its size aft of the main fashion-piece in the half-breadth plan, as highas it is designed to go ; it should cut offon the middle of one of the transoms;it maybe squared up to the sheer-plan,and from thence taken to the body-plan, or may be taken direct from thehalf-breadth plan—the results are thesame in both cases. From the nature of horizontal tran-soms, it will appear evident that theymay be readily shown in the three plans,two of which show their edges and foreand aft width only ; this arrangementis doubtless readily understood by thereader. The subject of stern frames is
Text Appearing After Image:
MARINE AND NAVAL ARCHITECTURE, 269 not as complicated as it would seem tobe. English architects have thrownaround this part of the ship a labyrinthof mystery that has served to discour-age many from daring to grapple withthis seemingly complex part. Themanner in which the subject has beentreated is in itself enough to discouragethe beginner ; they have assumed, andeven averred, that it is necessary tomake a transom plan, and then cantingthe transoms with the sheer, or one atleast ; and again canting the transomsfrom a square with the margin linetends to confuse. Now we say that itis not necessary to show them on thefloor on more than one plan, that is thehalf-breadth. We have described themin the sheer and body-plan; it is only,however, for the draft, nor yet is it ne-cessary to sweep in the square fashion-piece on the floor. We have shown that the line form-ing the moulding-edge of the transomsextended from the margin-line, or in-side of the post, to the line showing theface or mould

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