Triangulation applied to sheet metal pattern cutting : a comprehensive treatise for cutters, draftsmen, foremen and students ... (1920)
Kidder, F. S. (Fred SMith), b. 1863 · New York : The Sheet Metal Publication Company · leaf 42
CHAPTER V. A Twisted Transitional Fitting. Attention is here directed to a form as illustrated at Fig. 23, which is an excellent example for practise, since it may be represented by a comparatively few lines. It may be here remarked that it requires far more study to conceive the forms whose… … Fig. 23. The View of a Fitting whose Form is Somewhat Unusual. veloped by triangulation, than to secure an understand- ing of the few principles involved after the form has been conceived. Therefore the best advice to be given to those who desire to secure a clear understanding of this branch of…
Sheet-metal work
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