Appleby and Gould's Lamp Chimney

1866 Scientific American  
Improved Breech-loading Cannon. This method of loading cannon at the breech con sists in having a mov able arm, A, jointed to the can non so that it swings freely on its axis. In this arm are the chambers, B, which contain the charge. Figs.
doi:10.1038/scientificamerican08041866-86 fatcat:wf6ncmyekbdchayb7siy4ujhbm