Windshield Wipers’ Overlooked Female Inventor: The Story of Mary Anderson

United States - Ekhbary News Agency

Windshield Wipers’ Overlooked Female Inventor: The Story of Mary Anderson

Before cars and buses became ubiquitous features of the modern cityscape, many cities relied on streetcars to shuttle residents. These journeys, especially during summer months, were often sweltering, with passengers crammed together in the heat. However, it was the winter months that presented a far more significant challenge for streetcar operators.

The primary issue wasn't the lack of heating – an advancement that came with electrification in the 1890s – but the dangerous conditions created by sleet and snow, which made it nearly impossible for drivers to see. Lacking any internal mechanism, drivers had no choice but to either hang their heads out of an open window, exposing themselves to frigid air, or to stop the streetcar frequently to manually clear the glass from the outside.

It was during a winter visit to New York City in 1902, while experiencing this very struggle firsthand in a streetcar, that businesswoman Mary Anderson conceived of a groundbreaking idea. Anderson, who hailed from Birmingham, Alabama, and had no prior experience with such public transportation woes, wondered: "What if the operator could clear his windshield from inside the trolley without opening a window or door?"

Anderson immediately began developing a prototype. Her vision was a manually operated arm with a rubber blade, controlled by a lever inside the vehicle. When activated, a spring mechanism would move the wiper across the windshield's surface, clearing obstructions. This innovative design earned her U.S. Patent No. 743,801 on November 10, 1903, for her "Window-Cleaning Device" – the precursor to the modern windshield wiper.

Born in 1866 on a plantation in Alabama, Mary Anderson benefited from a degree of financial stability due to her father's estate, despite his early death when she was just four. Little is documented about her life prior to 1889. In that year, she relocated with her widowed mother and sister, Fannie, to the rapidly industrializing city of Birmingham. There, the family ventured into the real estate business, successfully financing and constructing the Fairmont Apartments on Highland Avenue. This marked a significant step for Anderson into the male-dominated business world.

Over the subsequent years, Anderson became increasingly involved in local property development and management. In 1893, she moved to Fresno, California, to manage a cattle ranch and vineyard. This venture, however, proved to be short-lived. Anderson soon returned to Birmingham to assist her ailing aunt at the Fairmont Apartments. Following her aunt's passing, hidden caches of gold and jewelry, discovered in trunks the family had been forbidden to open during her lifetime, provided the capital for Anderson's subsequent entrepreneurial endeavors, including the development of the windshield wiper.

Anderson never married. Like many female inventors of her era, she faced societal and legal constraints that differed from those faced by men, including limitations on property ownership and the ability to open bank accounts independently. Even today, women constitute only about 12 percent of U.S. patent holders, suggesting that systemic factors, beyond individual choices, continue to play a role. As economics professor Zorina Khan notes, significant reasons relate to "choices rather than obstacles." Khan elaborates that the types of patentable technologies may not align with women's creative interests, and patent systems are less useful for inventors who do not intend to commercialize their ideas.

Mary Anderson, however, did intend to commercialize her invention. For at least eighteen months, she actively pitched her "Window-Cleaning Device" to manufacturers in the nascent automotive industry. The responses were consistently dismissive, exemplified by a letter from the Montreal firm Dinning & Eckenstein dated June 20, 1905: "We regret to state that we do not consider [the window-cleaning device] to be of such commercial value as would warrant our undertaking its sale."

Beyond the perceived lack of commercial value in a fledgling industry, some critics even deemed Anderson's invention potentially dangerous, arguing that the sweeping motion could distract drivers more than the inability to see through a wet or snowy windshield. Anderson was unable to secure a buyer. Her descendants speculate that her status as an independent, unmarried woman may have contributed to this lack of commercial success.

The fact that windshield wipers are now a standard feature on virtually every motor vehicle worldwide underscores a crucial point: Mary Anderson was remarkably ahead of her time. Five years after her patent was granted, Henry Ford introduced the Model T. Five years after that, Ford revolutionized car manufacturing with the moving assembly line, drastically reducing production time and cost. As automobiles became increasingly common across the U.S., manufacturers began to recognize the inherent value of the windshield wiper. By the early 1920s, a version of Anderson's invention had become a standard feature on most vehicles.

Anderson likely never earned any royalties or licensing fees, as her U.S. Patent No. 743,801 expired in 1920. Furthermore, car manufacturers did not adopt her exact design. Other female inventors, such as Charlotte Bridgewood, who is credited with inventing the first electrically powered automatic windshield wiper in 1917, built upon Anderson's foundational concept. Mary Anderson lived long enough to witness her invention become an essential component of global transportation. However, she passed away at the age of 87, before being posthumously inducted into the National Inventors Hall of Fame in 2011.

Throughout her life, Anderson remained a determined businesswoman, managing the Fairmont Apartments until her death. It is highly probable that she owned a car equipped with the successor to her groundbreaking 1903 invention, a testament to her foresight and enduring legacy in automotive history.

Ekhbary News Agency