Pennsylvania (Petit) truss
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Burr Truss
The Burr Arch Truss — or simply Burr Truss or Burr Arch — is a combination of an arch and a multiple kingpost truss design. It was invented in 1804 by Theodore Burr, patented on April 3, 1817, and used in bridges, usually covered bridges. The design principle behind the Burr arch truss was that the... -
Brown truss
A Brown truss is a type of bridge truss, used in covered bridges. It is noted for its economical use of materials and is named after the inventor, Josiah Brown Jr., of Buffalo, New York, who patented it July 7, 1857 as US patent 17,722. The Brown truss is a box truss that is a through truss (as... -
King post
A king post (or king-post) is a central vertical supporting post used in architectural, bridge, or aircraft design applications. A king post (or crown post) extends vertically from a crossbeam to the apex of a triangular truss. The king post connects the apex of the truss with its base, holding up... -
Fink truss
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Lattice truss
A Lattice truss, also known as Town's lattice truss, uses a large number of small and closely spaced diagonal elements that form a lattice. It was patented by architect Ithiel Town in 1820 and 1835 as Town's lattice truss. Originally a design to allow a substantial bridge to be made from planks...
