Important Discovery
Inquirer, Brattleboro
The Unionist 1834-04-10
Unionist content
Transcription
Important Discovery. —We are informed by two gentleman who lately passed through Syracuse, N.Y. that Mr. Avery, proprietor of an extensive iron foundry in that place, has made a most important discovery in relation to the casting of iron. The best kind of earth used in foundries, is brought we believe, from Canada. Mr. Avery analyzed this earth and found it to contain proportion of blue clay. Following this up by a series of experiments, he discovered that if common fine sand was mixed with common blue clay in the proportion of one tenth part of clay to nine tenths of sand, it would constitute the best composition for casting that he had ever used. The most delicate casting came out free from sand; requiring no cleaning by vitrol. He dismissed 10 of his cleaners on the spot. Mr. A. has taken out a patent for the discovery, and thinks it will make an immense saving the expense of iron foundries.— Inquirer, Brattleboro.
About this Item
William Avery (1793-1840) was an inventor and manufactorer in New York State. His Syracuse iron foundry, E. Lynds & Co, helped revolutionize transport on the Great Lakes and the Erie Canal. In his final years, he worked on the Illinois and Michigan Canal, but died suddenly before his part of the job was complete. Prudence Crandall would later live near the start of this canal in Mendota, Illinois. Avery had many patents to his name, but the most important was the Avery rotary engine. An article in Scientific American March 17, 1894, p. 175-176 has more information on the rotary engine.
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Above: Avery's Rotary Engine