انواع الماكينات القديمة
انواع الماكينات القديمة مخرطة المعرفة A lathe from 1911 showing component parts. a = bed, b = toolrest, c = headstock, d = geartrain to drive automatic screw shaft, e = pullies for belt drive from an external power source, f = spindle, g = tailstock. h = automatic screw shaft.