Modern Machine-Shop Practice, Volumes I and II

"Modern Machine-Shop Practice, Volumes I and II" by Joshua Rose is a detailed instructional guidebook from the 1800's about running and organizing machine shops. It's designed for both experienced and new machinists, teaching them about how machines and tools work, how to build mechanical devices, and how to manage these things effectively. The book emphasizes hands-on learning rather than just theory. It starts by explaining the basics of gear-wheels, like how they're grouped based on tooth design, the shapes of gear teeth, and how to measure different sized gears. It defines terms for different gear types, such as spur-wheels, bevel-wheels, and worm-wheels, and it clarifies ideas like pitch circles, diameters, and the link between the number of teeth and different types of pitch. The main goal is give straight forward, technical information that helps machinists understand these parts, forming a base of information needed for the processes discussed later in the book.