"1885 Adjustable Scaffold Support - Original U.S. Patent # 319,723"
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"1885 Adjustable Scaffold Support - Original U.S. Patent # 319,723" description from The New York Times Store
"Own this original, one-of-a-kind piece of 19th century American history, made available by the U.S. Patent Model Foundation, exclusively through The Times. James Hughes of Lawrence, Kansas, used two models, made of mahogany and iron, to illustrate his clever invention. The larger one is for a four-legged trestle and the smaller is for a simple trestle with two legs. Both work in a similar way: A ledger is inserted in the specially designed U-shaped saddles, which surround the ledger and prevent it from dropping through the bottom. They also have an inclined pocket into which the legs are placed, which allows for different-size lumber, and presses them against the ledger to prevent lateral movement. For the two-legged example, only one side of the saddle is constructed this way as the other side is simply made flat. To further provide stability, a hole is made in each side of the saddle for placement of a pin. In uneven terrain, different lengths of wood can be used for the legs to provide more stability. All these elements ensure a much more secure scaffold, which looks similar to todayi 1/2 s a sawhorse. Construction models are popular and extremely hard-to-find, and are sure to be a thrill for anyone who loves building-related models or tools. Presented to the U.S. Patent Office by its hopeful inventor, this is the actual model that examiners relied upon to award this patent more than 130 years ago. For more images of this invention, from different angles, click here. All U.S. Patent models are from 1836 to the 1890i 1/2 s, and are approximately 12 or less inches square. Each of these rare artifacts is guaranteed authentic. As with any historical items from the 1800i 1/2 s, signs of age and wear are common and are considered part of a modeli 1/2 s charm. Each model comes with its original patent office tag or a replica tag, plus a copy of its patent drawings and papers printed on parchment and a certificate of authenticity with a fascinating background on patent model history. Comes with FREE Inventing America booklet, featuring Times coverage of inventors and innovators dating back to the newspaper's inception in 1851!"
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