UNT Libraries Government Documents Department - 2 Matching Results
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- Gas-Cylinder for Elevating Heavy Ordnance
- Patent for "improved means for effecting the desired movements of the gun, to elevate the latter for discharge, and retract it for loading and concealment" (lines 19-24).
- Rotary Reversible Steam-Engine
- Patent for a rotary reversible steam-engine which is "not easy to get out of order, and the parts of which can be readily removed and replaced when worn or broken" (p. 1).