Why was there a rush of inventions in the late 1800's

Because inventors focused on finding solutions to practical problems.

The 1800s was the end of the Industrial Revolution in America and were a period of great change. During this period many inventions were created, some of them are still used until today. There was a rush of inventions during that period because the industrial revolution brought a series of new possibilities with new forms of machines and using other forms of fuel. This opened a door for the creation of other types of machines and new inventions.