His contributions included a method of laying a half-mile length of cable across a lake without a barge to carry the reel; the development of a formula for safe pulling tensions to permit extra long cables between manholes; the design of a metal bellows as a flexible insert in sheaths to allow cable motion; the invention of a thermometer probe to measure accurately the temperature of cable conductors in ducts; the improvement of cable reliability by investigating the complex causes of faults under varying conditions.
