Fry, Horace Pugh. [from old catalog] · Philadelphia · leaf 65
■*-ROOT DI/\M.—I diam of screwFig. 42. 62 RIGHT HAINID IN5IDL \ND OUTSIDE SCREW THREADSSirsl3L_C V. DOUBL_E V. Sir-4Gl_E: 5Q. DOUBLE SQ. … 5irNaGi_E: v^. doublei v: 3irNiG\_E: sq. doub\—e: sq. LEFT HAMD INSIDE AND OUTSIDE SCREW THREADS Fig. 43. 8. The pitch of a single thread is the distance between twoadjacent points. It is the distance a point would advance parallelto the axis in one revolution of the thread (Fig. 42); e. g.,…
Mechanical drawing
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