Страница - 2Mechanical Drawing Self-Taught:
COMPRISING
INSTRUCTIONS IN THE SELECTION AND PREPARATION OF DRAWING INSTRUMENTS,
ELEMENTARY INSTRUCTION IN PRACTICAL MECHANICAL DRAWING;
TOGETHER WITH
EXAMPLES IN SIMPLE GEOMETRY AND ELEMENTARY MECHANISM, INCLUDING SCREW THREADS, GEAR WHEELS, MECHANICAL MOTIONS, ENGINES AND BOILERS.
BY JOSHUA ROSE, M.E.,
AUTHOR OF "THE COMPLETE PRACTICAL MACHINIST," "THE PATTERN MAKER'S ASSISTANT," "THE SLIDE VALVE"
ILLUSTRATED BY THREE HUNDRED AND THIRTY ENGRAVINGS.
PHILADELPHIA: