The pattern maker's assistant : embracing lathe work, branch work, core work, sweep work, and practical gear construction : the preparation and use of tools : together with a large collection of useful and valuable tables (1878)
Rose, Joshua · New York : D. Van Nostrand · leaf 217
, similar to a rack ; through the centers of ^ur.2I3. ^' ^' square uf lines across the piece. These lines, where they intersect the pitch line, will give the centers of spaces on that side ; or if we draw liues, as at E, F, through the cen- ters of the spaces, they will pass through the centers of… … and fix it temporarily by tacks, trim off the edges true to the i>attern, and mark upon the edges of the card the po- sition of the tops of the thread upon each sidej we remove
Patternmaking
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Traité des quantitez incomensurables [sic] : ou sont decidees plusieurs belles questions des nombres rationaus & irrationaus. Les erreurs de Stevin refutées. Et le dizieme livre d'Euclide illustré de nouueles [sic] demonstrations plus faciles & plus succinctes que les ordinaires, & reduit à 62. propositions. Avec vn Discours de la maniere d'expliquer les sciences en françois .. (1640)](https://img.insideoutlibrary.com/img/200/ia-traitdesquantite00lete-208-0.webp)
