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Jethro Wood (March 16, 1774 [1] – 1834) was the inventor of a cast-iron moldboard plow with replaceable parts, the first commercially successful iron moldboard plow. His invention accelerated the development of American agriculture in the antebellum period.
In Wood's plow, cast iron was substituted for the wooden mouldboard, landside and standard, and a cast iron point or share for the old wrought, steel tipped share. But the most important part of Wood's invention was the interchangeability of parts.
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Jethro Wood patented an iron plow with interchangeable parts. The agricultural revolution picked up steam during these years, with notable agricultural developments including: 1819: Jethro Wood's patenting of the iron plow with interchangeable parts; 1819–25: The establishment of the U.S. food canning industry.
If the point broke on a Newbold plow, the entire cast unit had to be discarded. These gave way in 1819 to the design by Jethro Wood of Scipio, NY. On his plow, if the point broke by striking a root, spare parts were interchangeable, and it was not necessary to buy an entire new plow.
Wood did more than any other person to drive out of use the cumbrous contrivances common throughout the country, giving a lighter, cheaper, and more effective implement. Appears in 11 books from...
In 1814 Jethro Wood obtained a patent for a plow, the mould-board land-side and share in three parts and of cast iron. He was familiar with Newbold s and Peacock s plows, and his was a bungling imitation of theirs, and not near so perfect in form and construction as the old Rotherham plow, which had been in use in Great Britain upwards of ...
