In 1819, Edward Converse and Seth Peck invented and patented the double-seaming machine.

• A. False
• B. True
• C. It was invented earlier
• D. It was invented later

Answer: (A)

The statement isn’t accurate. A true double-seaming machine did not come about in 1819 by Edward Converse and Seth Peck. Canning advanced from the early 1800s, with the basic container and closing concepts expanding over the next couple of decades, and mechanized double-seaming emerged later in the 1830s–1850s as the industry moved toward production-scale sealing. The double seam itself is formed by bringing together two interlocking folds to lock lid and body, creating a hermetic seal, and machines that reliably do this came after the 1810s rather than in 1819.