Lincoln, Abraham, 1809-1865 [Patent for Abraham Lincoln's improvement in buoying vessels over shoals]
Order a pdf of this item here.
A high-resolution version of this object is available for registered users. LOG IN
Gilder Lehrman Collection #: GLC01304 Author/Creator: Lincoln, Abraham, 1809-1865 Place Written: Washington, District of Columbia Type: Printed document Date: 22 May 1849 Pagination: 3 p. : Height: 28.8 cm, Width: 20 cm Order a Copy
Patent granted to Lincoln for inventing "a new and improved manner of combining adjustable buoyant air chambers with a steamboat or other vessel for the purpose of enabling their draught of water to be readily lessened to enable them to pass over bars ... " Includes a written description and diagram.
Citation Guidelines for Online Resources
The copyright law of the United States (title 17, United States Code) governs the making of photocopies or other reproductions of copyrighted material. Under certain conditions specified in the law, libraries and archives are authorized to furnish a photocopy or other reproduction. One of these specific conditions is that the photocopy or reproduction is not to be “used for any purpose other than private study, scholarship, or research.” If a user makes a request for, or later uses, a photocopy or reproduction for purposes in excess of “fair use,” that user may be liable for copyright infringement. This institution reserves the right to refuse to accept a copying order if, in its judgment, fulfillment of the order would involve violation of copyright law.