Eli Whitney built the prototype gun locks in 1801
The Whitney Armory continued to manufacture guns until 1888.
Loisel's plans to buy a gun
Eli Whitney
No, he invented the cotton gin.
Loisel's plans to buy a gun
The military <><><> Made for the military by Whitney. Same Whitney that invented the cotton gin.
He is famous for creating Cotton Gin!! and gun parts.
The parts to each gun were shaped and fitted to a particular gun- a part from one gun did not fit another gun. Whitney developed standard manufacturing tolerances, so that a lock or trigger from ANY of his guns could be used on any of his guns- a very novel idea at the time.
Interchangeable parts for machinery
Eli Whitney
They were all made by hand before the gun factory was made to make interchangeable parts so the gun parts could fit almost all types of riffles and weapons.