Various Inventions in the Early 1900's.

The Modern Escalator

May 19, 1900

-Charles Seeberger, along with the Otis Elevator Company, produced the first commercial elevator at the Otis factory in Yonkers, N.Y.
-Seeberger registered "Escalator" as a trademark for a moving stairway.
-Seeburger ultimately created the level steps on the modern escalator that is still in use today. Bellis, Mary. "History of the Escalator - Jesse Reno and Charles Seeberger." History of the Escalator - Jesse Reno and Charles Seebe

The Motorized Vacuum

Aug 30, 1901

-British engineer, Hubert Cecil Booth, patented a motorized vacuum cleaner in 1901.
-Booth's machine took the form of a large, horse-drawn, petrol-driven unit, which was parked outside the building to be cleaned with long hoses being fed through the windows. Bellis, Mary. "Invention and History of Vacuum Cleaners." About.com Inventors. About.com, n.d. Web. 18 Feb. 2013.

Crayola Crayons

Jun 20, 1903

-Crayola Crayons were invented by cousins Edwin Binney and C. Harold Smith in 1903.
-The irst box of 8 crayons were sold for a nickel and the colors were black, brown, blue, red, purple, orange, yellow, and green. Kids, Vernon. "The History of Crayola Crayons." The History of Crayola Crayons. Vernon Kids, n.d. Web. 18 Feb. 2013. http://www.vernonkids.com/cedarmountain/4thgradelinks/tests/crayola/crayolahistory.htm.

Life Savers Candy

Oct 8, 1912

-Chocolate manufacturer Clarence Crane in Cleveland Ohio, invented the Life Saver in 1912.
-Life Savers were to to be a “summer candy” that could withstand heat better than chocolate.
-Since the mints looked like miniature life preservers, he called them Life Savers. Bellis, Mary. "The History of Life Savers Candy." The History of Life Savers Candy. About.com, n.d. Web. 18 Feb. 2013. http://inventors.about.com/library/inventors/bllifesavers.htm.

Evolutions in Radio

Jan 26, 1913

-Edwin Armstrong invented the regenerative or feedback circuit. It worked by feeding a signal through a radio 20,000 times per second. It increased the power of the signal, and allowed radio broadcasts to have a greater range.
-Edwin Armstrong also invented the Superhetrodyne Tuner that allowed radios to tune into different radio stations.
-The Superhetrodyne Tuner is still used today. Bellis, Mary. "Edwin Howard Armstrong." About.com Inventors. About.com, n.d. Web. 18 Feb. 2013.

Pop Up Toaster

Oct 13, 1919

• Charles Strite invented the modern timed, pop-up toaster.
• He invented it because previously toasters only toasted one side of the bread at a time and required a person to stand by and turn it off manually when the toast looked done.

Bellis, Mary. "The History of Your Toaster." The History of Your Toaster. About.com, n.d. Web. 18 Feb. 2013. http://inventors.about.com/library/inventors/bltoaster.htm.

Modern Polygraph Test

Mar 19, 1921

-John Larson, a University of California medical student, invented the modern lie detector (polygraph.)
-They are still used in police interrogation and investigation since. Bellis, Mary. "Police Technology and Forensic Science." About.com Inventors. About.com, n.d. Web. 18 Feb. 2013.