Primer for Cannon.
Description:
Patent for a new and improved primer for cannons. This design corrects the loosening of primers in their vent-holes by way of "a spring combined with the priming tube, which spring expands to the size of the vent" (para. 3). This eliminates blowouts and premature breakage.
Date:
September 14, 1880
Creator:
Rodman, John Black
Partner:
UNT Libraries Government Documents Department