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Cast-Iron Piano Frame
Invented by Alpheus Babcock. He was born in Massachusetts and created pianos in Boston until 1837, until his death in 1842. -
Revolver with Interchangeable Parts
Invented by Samuel Colt, an American inventor. The name "revolver" was special because it contained a cylinder inside the gun that "revolved" the bullets. -
Rotary Printing Press
Invented by Richard M. Hoe. He was an American inventor who developed the rotary printing press. This new printing press had a stationary platform, and was printed by rotating drums. -
Sewing Machine
Invented by Elias Howe in 1846. It was used in factories on production lines. It was used for making clothes, blankets, and other products. -
Door Lock
The modern version of the door lock was invented by Linus Yale, Sr. He soon went on to invent the Yale Lock Co. -
Mason Jar
Invented by John Mason. This new glass jar had a screw-on lid and is very versatile. -
Game Board
Created by Milton Bradley, an American inventor. His first game was "The Checkered Game of Life", and when it beacme popular, he went to form the Milton Bradley and Company. -
Dissolving Pills
Invented by William Erastus Upjohn. This was called the friable pill, which means that it can be crushed. This helped the pill easier to consume. -
Fountain Pen
The invented Lewis Waterman was the inventor of the new fountain pen, which had a capillary feed. He eventually founded the Ideal Pen Company and Waterman Pen Company. -
Calculator
William Seward Burroughs invented the first adding machine. He eventually founded the American Arithometer Company. -
Bottle Cap
Invented by William Painter, an Irish mechanicaly engineer. Eventually invented Crown Holdings. -
Escalator
Invented by Jesse Reno in Coney Island, New York City. It was initially called the "inclined elevator".
