sentences:  Edward and Charles Everett, Quincy, Illinois patented a type of fifth wheel in 1850, followed by Gutches' metallic head block and fifth wheel in 1870 and Wilcox fifth wheel in 1905.The invention of the fifth wheel for motorized trucks is often credited to US inventor Charles H. Martin of the Martin Rocking Fifth Wheel Co. who invented the device in 1915.It was submitted for patent in 1915 and finalized in 1916, with Herman Farr as inventor and Martin as assignee.