U.S. Patent No. 252,648 was granted to Helen Blanchard for a crocheting and sewing machine used successfully in large manufactories.
On January 17, 1882, Helen A. Blanchard was granted U.S. Patent No. 252,648 for a 'crocheting and sewing machine,' a device that mechanized the previously entirely hand-done craft of crochet work for industrial-scale production.
Contemporary biographical accounts, including the 1893 reference work A Woman of the Century, note that this crocheting machine achieved 'signal success' when adopted by large manufactories, indicating that it was not merely a patented curiosity but a genuinely successful commercial product used widely in the textile and garment industries of the 1880s.
The invention represented a significant technical achievement: mechanizing crochet work required replicating the complex looping and knotting motions of hand crochet through a mechanical apparatus, a considerably more intricate engineering challenge than straight-line or zig-zag stitching. Blanchard's success in solving this problem further solidified her reputation as one of the era's most technically accomplished inventors, male or female.
This patent, coming six years after the founding of her manufacturing company, shows that Blanchard continued to actively innovate and expand her product line well into the 1880s, rather than resting on her earlier successes. The crocheting machine added to the considerable wealth and property she had accumulated by this period, as noted in contemporary accounts describing her as a prosperous factory owner and patent holder by the early 1890s.