Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 147
wn, to It is claimed that the dies and taps used to produce these threads can be used longer before becoming blunt than ours; but, strangely enough, ourWhitworth threads are used in the American Navy work. 128 INDUSTRIAL DRAWING AND GEOMETRY form flats parallel with axis. So that the actual depth… … EQUILATERALTRIANOLCtoOBTAIAPPROXIMATE DEPTHOF THREAD. - A- ■ Pigs. 407, 408.—Proportions of hexa-gonal bolts for drawing purposes. or, the pitch for square threads P = n 0-Wd + 0-08, nearly (3) And, if di — diameter at bottom of threads (the core diameter), as in other cases, Then the core diameter…
Mechanical drawing · Geometrical drawing
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