Originally published in 1935, this early work by G. Henderson is both expensive and hard to find in its first edition. Its 322 pages contain a wealth of information on the engineering of gears and includes chapters on worm gearing, materials, spiral gearing, all accompanied with technical drawings and formulae. This fascinating work is thoroughly recommended for those with an interest in the intricacies of gear design and construction. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

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