ForsideBøgerPocketbook of Useful Form…and Mechanical Engineers

Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

Forfatter: Guilford L. Molesworth

Sider: 744

UDK: 600 (093)

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419 OF ENGINEERING FORMULÆ. Whitwokth’s Standard for Screws with Angular Threads. No. of Threads per inch. 1 I Old Sizes, inches. New Standard, decimals of an inch. 11. 11 0 s I £ • Old Sizes, inches. New Standard, decimals of an inch. No. of Threads lær inch. Old Sizes, inches. New Standard, decimals of an inch. 48 •100 12 •600 4 2f 2-375 40 J •125 11 f •625 4 2! 2-500 32 •150 11 •650 4 24 2-625 24 •175 11 •675 3i 24 2-750 24 •200 11 •700 3i 2J 2-875 24 •225 10 4 •750 3| 3 3-000 20 i •250 I 10 •800 31 3* 3-25 20 ■275 9 •875 1 31 31 3-50 18 •300 । 9 •900 3 3f 3-75 18 •325 8 1 1-000 3 4 4-00 18 ■350 1 1-125 I 2i 4i 4-25 1 16 •375 1 U 1-250 2J 4i 4-50 IB •400 1 6 if 1-375 4t 4-75 14 •425 6 U 1-500 21- 5 5*00 14 •450 5 1» 1-625 2« 54 5'25 14 •475 5 13 1-750 i 54 5-50 12 t •500 . Q li 1-875 5i 575 12 • 525 | 4i 2 2-000 2* 6 6-UO 12 •■550 4| 2'125 12 •575 1 2i 2-250 Whitwokth’s Gas Thkeabs. Diameter in inches ± .1 i 3 9 1 4 1 li 1 u li 2 No. of Threads per ) inch 5 28 19 14 14 11 11 11 11 11 Whitwobth’s Standard Watch and Mathematical Instbument Schews. Diam. from in. to „ •010 •014 •015 •019 •020 •024 ■026 •030 •032 •038 •040 •055 ■060 •075 •080 •095 •10 Threads per in. 250 210 180 150 120 100 80 60 50 2 E 2