Spiral and Worm Gearing

In this book the rules, formulas and instructions given are illustrated with engravings whenever necessary and numerous examples are given to show their application to problems met within machine design. Theoretical consideration has not been neglected in cases where they have been found necessary to fully explain a practical process, and this book is, a treatise on both the theory and practice of spiral and worm gearing along such lines as will make it especially useful to practical men and women.