Tracy exhibited her lock-stitch and chain-stitch sewing machines, including her high-capacity bobbin model, in the Liberal Arts Building.
Alongside the installation of her safety elevator, Harriet Tracy also exhibited her lock-stitch and chain-stitch sewing machines, including her innovative high-capacity bobbin model, in the Liberal Arts Building at the 1893 World's Columbian Exposition in Chicago, beginning around May 1, 1893.
Her sewing machine display allowed fairgoers and industry observers to see firsthand the practical benefits of her patented 1,000-yard bobbin design, which reduced the need for frequent thread reloading and represented a genuine efficiency improvement over conventional sewing machines of the period. Contemporary observers specifically noted the ingenuity of this high-capacity bobbin system.
Exhibiting at the Liberal Arts Building placed Tracy's inventions in direct comparison with the products of major manufacturing firms, a testament to the seriousness with which her mechanical innovations were regarded. The exposition, visited by over 27 million people over its run, provided an unparalleled platform for showcasing American innovation to a global audience, and Tracy's presence there — as both an elevator and sewing machine inventor — was a rare instance of a woman inventor receiving such prominent recognition across two distinct mechanical fields simultaneously.