LOOK: http://www.theatlantic.com/technology/archive/2011/05/old-weird-tech-pedal-skates/239421/
Charles E. Nordling with his pedal skates, circa 1910.
The patent drawings for Nordling’s pedal skates 1913/U.S. Patent Office
http://wackyboards.blogspot.com/2010/03/history-of-inline-skates.html