WebChains Unit of length equal to 66 feet, used especially in the U.S. public land surveys. The original measuring instrument (Gunter's chain) was literally a chain consisting of 100 iron links, each 7.92 inches long. Websurveyor’s chain, also called Gunter’s chain, measuring device and arbitrary measurement unit still widely used for surveying in English-speaking countries. Invented by the English …
Types of Chains Surveying - The Constructor
WebAn 1813 surveying text notes that, in New England, most work was done with a magnetic compass and a surveyor's chain. The compass, invented in 1511, was in wide use until 1894. The chain was invented in 1620 by Edmund Gunter, an Englishman. It was made of 100 iron or steel links and was 66 feet long. Eighty chains made up one mile. WebAug 27, 2024 · In 1620 an English mathematician and astronomer named Edmund Gunter described a surveyor's chain with 100 links, measuring 66 feet (22 yards or 4 poles) … phones with sliding keyboard
Chains to Feet - metric conversions
WebJul 8, 2024 · Gunter’s chain—Invented by the English astronomer Edmund Gunter about 1620, this measuring device became the basis for the chain and link units of length used in surveying the public lands of the United States.The 66-feet-long Gunter’s chain is divided into 100 links, each 7.92 inches long. (Early chains were 50 links, or 33 feet in length.) WebThe standard Gunter chain has 100 links and measures 66 feet (or 4 poles) overall. Thus 80 chains equal a mile, and 10 square chains equal an acre. This example is a half-Gunter, with 50 links measuring 33 feet overall. It is one of several instruments that James Griswold used to lay out the New York and Erie Canal. Location Currently not on view WebThe 66-foot (20.1 m) chain is divided into 100 links, usually marked off into groups of 10 by brass rings or tags which simplify intermediate measurement. Each link is thus 7.92 inches (201 mm) long. A quarter … phones with the highest battery capacity