Toy firearm for firing projectiles by compressed air, with the piston of the cylinder-piston system attached to the hammer of the firearm

摘要

A device in the form of a hammer or firing-pin, movable angularly, with an arched attachment forming a piston, the cylinder being extended like an arched recess with its axis almost coinciding with that of the articulated joint of the hammer, and with the spring for acting on the piston acting on the said device by urging it angularly.