Machinists' and draftsmen's handbook, containing tables, rules and formulas, with numerous examples explaining the principles of mathematics and mechanics as applied to the mechanical trades; intended as a reference book for all interested in mechanical work (1910)
Lobben, Peder, 1858- · New York, D. Van Nostrand company · leaf 455
^^ XS^V threads per inch, but by using such adouble intermediate gear as is shownin Fig. 3 the lathe will cut four threads per centimeter, which isthe same as one-fourth times 10 and equals 2^ millimeters pitch,which corresponds to a metric standard screw of 18 millimetersdiameter. To Calculate the… … SCREWS. 437 Example To gear a lathe in order to cut a metric standard screw24 millimeters in diameter and of three millimeters pitch, thelead-screw on the lathe having four threads per inch. Solution: Twenty divided by three gives 6%, therefore gear the latheas if it was to cut 6% threads per inch…
Mechanical engineering
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