Almon Brown Strowger

Almon Brown Strowger. He was an American inventor and undertaker who is credited with inventing the first commercially viable automatic telephone exchange system. His invention, the Strowger switch, replaced human telephone operators with electromechanical equipment, revolutionizing global telecommunications. Strowger's work led to the founding of the Strowger Automatic Telephone Exchange Company, which became a cornerstone of the Automatic Electric Company and later the GTE corporation.

Early life and career

Almon Brown Strowger was born in Penfield, New York, near Rochester, New York. Little is documented about his early education, but he served as a First Sergeant in the 8th New York Cavalry Regiment during the American Civil War. After the war, he moved to Topeka, Kansas, and later to Kansas City, Missouri, where he established himself as an undertaker. His experience in this profession is famously cited as the inspiration for his invention, stemming from a belief that local telephone operators were deliberately misdirecting calls intended for his business to a competitor.

Invention of the Strowger switch

Motivated to eliminate human intervention in call routing, Strowger began developing an automatic switching system around 1888. His key innovation was the "step-by-step" Strowger switch, an electromechanical device using rotary dial pulses from a subscriber's telephone to directly control a series of switches and connect calls. He filed his first U.S. patent (number 447,918) in 1891. The design was notably refined with the help of his nephew, Walter S. Strowger, and an associate, Alexander E. Keith. The system was first installed commercially in 1892 in La Porte, Indiana, by the Cushman Telephone Company, proving the feasibility of automatic exchanges.

Strowger Automatic Telephone Exchange Company

To commercialize his invention, Strowger founded the **Strowger Automatic Telephone Exchange Company** in 1891. The company was initially based in Kansas City, Missouri. While Strowger was the inventor, the business and technical development were largely managed by others, including Joseph Harris and Alexander E. Keith. In 1901, the company's assets were acquired by a group of investors led by Harris, who reincorporated it as the Automatic Electric Company in Chicago, Illinois. This company would become the primary manufacturer of Strowger switches and a dominant force in the Bell System's independent telephone market for decades.

Later life and death

After selling his interests in the telephone exchange company, Strowger largely retired from the telecommunications industry. He moved to St. Petersburg, Florida, a location popular with veterans and retirees. There, he invested in real estate and lived a relatively quiet life. Almon Brown Strowger died in St. Petersburg on May 26, 1902, from complications following a aneurysm. He was buried in Greenwood Cemetery in St. Petersburg.

Legacy and honors

Strowger's invention had a profound and lasting impact. The Strowger switch became the workhorse of telephone networks worldwide for most of the 20th century, with systems installed by the Bell System, British General Post Office, and countless other administrations. The electromechanical principles he pioneered paved the way for later electronic and digital switching systems. In recognition of his contribution, he was inducted posthumously into the National Inventors Hall of Fame in 2006. The term "Strowger exchange" became synonymous with automatic telephone switching, and his story remains a classic tale of innovation in the history of technology.

Category:American inventors Category:1839 births Category:1902 deaths