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Truss derives from the Old French word trousse, from around 1200 AD, which means "collection of things bound together". [5] [6] The term truss has often been used to describe any assembly of members such as a cruck frame [7] [8] or a couple of rafters. [9] [10]
Also, they were often similar to the Jennings barn design of 1879 (patent #218,031) with no tie beam so there were no beams to interfere with a hay fork (horse fork) on a track system (hay carrier) for pitching hay which became popular c. 1877. The gambrel roof shape lends itself to plank truss construction and became the most popular roof type.
The earliest wooden truss connections consisted of mortise-and-tenon joints and were most likely crafted at the construction site with the posts. Since most early trusses were made from unseasoned posts, the subsequent shrinkage would create cracking at the mortise-and-tenon joints. Additionally, the mortise-and-tenon joints in older trusses ...
In practice, when used in a covered bridge, the most common application, the truss is protected with outside sheathing. The Brown Truss was invented and patented by Josiah Brown Jr. in 1857. [136] 1858 screw top Pepper shaker. A pepper shaker with a screw-on cap. Salt and pepper shakers are typically placed on tabletops in restaurants and in ...
For the longer spans, it is uncertain if the Greeks or Romans invented the truss but the Romans certainly used timber roof trusses. Before 650 BC the now famous ancient Greek temples were built of wood, but after this date began to be built of stone. [ 22 ]
The 1865 Annual Report of the President and Directors of the Louisville and Nashville Railroad Company lists 29 Fink Truss bridges out of a total of 66 bridges on the railroad. The first Fink Truss bridge was built by the Baltimore and Ohio Railroad in 1852 to span the Monongahela River at Fairmont, Virginia (now West Virginia). It consisted of ...
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John Calvin Jureit (July 24, 1918 – September 9, 2005) was an American civil engineer and the inventor of the Gang Nail connector plate, used in building construction specifically for the joining of timber truss joints of roof, floor trusses and prefabricated wall panels. This invention has been widely credited for the boom in affordable ...