Machine drawing; a practical guide to the standard methods of graphical representation of machines, including complete detail drawings of a duplex pump and of a direct-current generator (1914)
Griffin, Charles Lewis, 1867-, Adams, Charles Clyde, 1882- joint author · Chicago, American technical society · leaf 29
bottom of the thread on the other side. The left-hand V threadat c is drawn in a similar way to b, the thread advancing on the left-hand side instead of on the right. Considerable care is required to get the Vs uniform, and themore practical, usual, and in nearly all cases satisfactory method… … Fig. 18. Conventional Drawing forThreads in Sectional Pieces to space with the eye rather than with the dividers. The light linesrepresenting the top of the thread should be drawn first, the heavierlines for the bottom of the thread are then drawn midway betweenthe light lines, stopping a short…
Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-869-563.webp)
