Roller skates the benefits they list include: Roller skates Roller skates are shoes, or bindings that fit onto shoes, that are worn to enable the wearer to roll along on wheels. The first roller skate was effectively an ice skate with wheels replacing the blade. Later the "quad" style of roller skate became more popular consisting of four wheels arranged in the same configuration as a typical car. While the first reported use of roller skates was on a London stage in 1743, the first patented roller skate was introduced in 1760 by Belgian inventor John Joseph Merlin. His roller skate wasn't
William Painter (inventor) Keizer's machine shop. He worked with manufacturers to develop a universal neck for all glass bottles and started Crown Cork and Seal in 1892 to manufacture caps that could be used to seal the universal necks. Painter patented 85 inventions, including the common bottle cap, the bottle opener, a machine for crowning bottles, a paper-folding machine, a safety ejection seat for passenger trains, and a machine for detecting counterfeit currency. He was inducted to the National Inventors Hall of Fame in 2006. William Painter (inventor) William Painter (November 20, 1838 – July 15, 1906) was an Irish mechanical engineer, inventor