- Mebane, North Carolina, United States
- US $9.98
- Jan 30th
The Involute Gear, Simply Explained, published by The Fellows Gear Shaper Co., Springfield, Vermont, revised edition, 1936 copyrighted in 1930. Reprinted by Nation Builder Books, Leesburg, VA, 2002, 5 1/2 x 8 1/2 softcover, 63 pages. In the early 1900, the Fellows Gear Shapers applied a breakthrough in the mathematical and geometrical understanding of gear design to the problem of cutting gears, making possible mass production of reduction gear devices at relatively low cost.