In 1873, Alpheus B. Corby patented a picket-pointing machine. He exhibited his machine at that years New York Agricultural Society Fair, where it was awarded a certificate of merit. We do not know whether Corby ever manufactured his machine.
Information Sources
- Awards at the thirty-third annual exhibition of the New York Agricultural Society, Albany, NY, October 1873: A. B. Corby, Binghamton, N. Y.; machine for pointing fence pickets, flat or square, new patent: Certificate of Merit.