Railroad Tie (open access)

Railroad Tie

Patent for a new design of railroad-ties meant "for clamping together the two members of the tie and for adjusting them relatively to each other so as to adapt them to clamp rails of different widths" (lines 13-16), with illustrations.
Date: November 4, 1913
Creator: Grant, James K.
Object Type: Patent
System: The Portal to Texas History
History of Water Flooding of Oil Sands in Oklahoma (open access)

History of Water Flooding of Oil Sands in Oklahoma

Report issued by the U.S. Bureau of Mines on the oil production from water injection methods. As noted in the introduction, "it is the purpose of this report to present data such as volume of oil produced monthly, volume of water injected monthly, spacing of wells, number of injection wells and oil wells, and other such pertinent information" (p. 5). This report includes tables, graphs, maps, and illustrations.
Date: November 1943
Creator: Taliaferro, David Benjamin & Logan, David M.
Object Type: Report
System: The UNT Digital Library