Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Tool for Drilling Wells.
Patent for improvement in "tools for drilling or boring Artesian, oil, and other deep wells; and it has for its object to prevent the loss of the drill or auger or of any portion of the drill-rods" (lines 9-13) via an "improved means for connecting the tool to the lower end of the drill-rod" (lines 15-16) including illustrations.
Date:
July 16, 1889
Creator:
McLane, Hiram H.
System:
The Portal to Texas History
Velocipede
Patent for new and useful improvements to the class of velocipedes "in which the rotation of the propelling-wheel is produced by the oscillation of a rocking-chair" (lines 24-26).
Date:
July 2, 1889
Creator:
Rullmann, John D. & Eckenroth, George
System:
The Portal to Texas History