Elisha Perkins

Elisha Perkins (January 16, 1741 - September 6, 1799) was an American physician and inventor of Perkins Patent Tractors, three-inch, single-pointed metal rods intended to cure various inflammations and pains of the head through contact with the afflicted area for a period of time, during which they would "draw off the noxious electrical fluid that lay at the root of suffering."