Davenport’s Thoughts of Electric Streetcars in 1834

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Ányos Jedlik’s 1928 model electric car did not go unnoticed among the emerging scientific fraternity. There were no cars and trucks back then. Therefore, their thoughts inclined towards modifying thunderous steam locomotives making their presence felt in Europe and America. After Vermont blacksmith Thomas Davenport made America’s first electric motor, he began dreaming of the possibility of electric streetcars next.

U.S. Patent 132 for Propelling Streetcars by Magnetism

Thomas Davenport visited the Penfield and Taft iron works at Crown Point, New York in 1833. Because he was curious to know about Joseph Henry’s electromagnets operating there. He purchased one and took it home to investigate further.

electric streetcars
Thomas Davenport: Unknown Author

After he stripped it down and understood electromagnetism better, Thomas Davenport cast an improved iron core. Then he replaced the winding insulation with strips of silk from his wife Emily’s wedding gown. You see, Emily was an enthusiastic co-inventor, because she co-owned U.S. Patent 132 for the first American electric machine.

DATAMP confirms that Emily Davenport kept detailed notes of the work. And is moreover believed to have been “a significant contributor to the inventive process”. The design incorporated “a voltaic pile battery, an electromagnet mounted on a wheel, and another magnet on a stationary frame …

How the Davenports’ Electric Motor Worked

electric streetcars
US Patent 132: USPTO: Public Domain The interaction between magnets could rotate the first magnet up to half a turn. Reversing the wires to the first magnet would cause it to rotate another half turn.” However, the secret sauce was the Davenport couple’s brush-and-commutator mechanism. For this made the reversal automatically and allowed the device to spin.

By now, you may be wondering what this has to do with electric streetcars. Thomas Davenport used Ányos Jedlik’s design to build a similar contraption, that followed a short rail among his other endeavors. This inspired others to start developing the first electrified public transport. This would evolve into electric cars fifty years later.

Related

The First (Model) Electric Car: Anyos Jedlik 1828

Demonstrating The Principles Of Electromagnetism

Preview Image: Application for Electric Motor U.S. Patent 132

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Electricity has always intrigued me. I have been writing about batteries and energy storage for more than ten years, and have published over 4,000 articles on this website. During that time, I have researched developments across lead-acid, lithium-ion, sodium-ion, flow batteries, and emerging energy-storage technologies. My goal is to explain complex battery concepts in clear, practical language that anyone can understand. My writing career began unexpectedly after leaving the corporate world. What started as a search for a new direction gradually became a fascination with batteries, renewable energy, and the science that powers modern life. Writing may not have made me wealthy, but it has given me the opportunity to explore an industry that continues to evolve in remarkable ways.

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