Ralph D. Mershon

Unsatisfied by classes at Zanesville High School in 1884, R.D. Mershon joined a crew surveying for a railroad. Working under Mr. Bateman, a surveyor, he gained hands-on experience with a transit and level. Bateman would not answer Mershon's questioning, referring him instead to the Handbook of Civil Engineering by John Trautwine. From that point he learned to use reference works. Given that young Merson had an interest in mechanics, a coworker suggested he study at Ohio State. Returning to Zanesville, Mershon turned to superintendent of schools William D. Lash for examination and certification. Mershon was admitted to Ohio State in the fall of 1886. His skills being evident, in his senior year he served as student assistant. In 1890 he graduated with a degree in mechanical engineering. After graduation he was an assistant instructor in electrical engineering. Working with alternating current machinery, Mershon developed a means of waveform measurement. It is described as an instantaneous potentiometer method, employing a telephone receiver to indicate balance. This work attracted the attention of the Westinghouse Electric Company.

In 1891 he joined the company in East Pittsburgh, Pennsylvania, where he designed transformers for electrical power distribution systems. In 1896 he and Charles F. Scott were sent to Telluride, Colorado, to carry out experiments on high-voltage transmissions. Their experiments went up to 133,000 volts; they observed corona discharge along the transmission lines. The losses were ameliorated with thicker wires and greater separation. To gain experience in the deployment of a power grid, Mershon took a leave of absence from Westinghouse to work with Colorado Electric Power in 1897/8. He returned to Westinghouse, serving for a short time in the New York office.

In 1900 Ralph Mershon became a consultant in electrical power transmission. He designed and supervised the construction of power systems in various states, Ontario and Quebec. From 1905 he consulted with South African firms taking power from Victoria Falls, and travelled there. From 1912 he consulted on a project at Inawashiro lake in Japan. He helped place visiting Japanese engineers with American manufacturers and power companies so that the necessary expertise could be acquired. Mershon became a Fellow of the American Association for the Advancement of Science on January 2, 1906.

Mershon was a member of the Engineer's Club in New York City. The Engineers' Club Building was erected in 1907. In 1910 he was involved in the formation of an "Inventors' Guild" that included Thomas Edison, Peter Cooper Hewitt, Elmer Sperry, Mihajlo Pupin, Baekeland, and others. These men were concerned with patent law, sometimes critically. Mershon was made a Life Member of the Engineers Club on January 26, 1950.

Mershon was president of AIEE in 1912. He is quoted making the wry observation that such posts went to men whose "chief claim to fame arise from activities in fields other than that of electrical engineering as defined by the Institute's constitution."[2]