Patent for a Jerkmeter

If you study jerks in a formal way, you are probably familiar with jerkmeters. Here’s a comforting treasure, the 1966 patent for one of the most beloved of all jerkmeter designs: 3,230,777 JERKMETER. Jacob Chass, Philadelphia, Pa., assignor, by mesne assignments, to Robinson-Halpern Company, West Conshohocken, Pa., a corporation of Pennsylvania Filed Dec. 17, 1962, […]