Gun with pivoting barrel, rotary ammunition cylinder, and double action firing mechanism

A gun comprising:

• a frame,
• a barrel assembly pivotably mounted on the frame for movement between a firing position and a loading position, the barrel assembly including an elongated barrel, a cylinder rotatably mounted on the barrel assembly for rotation about an axis which extends parallel to the longitudinal axis of the barrel, the cylinder being provided with a plurality of means for retaining a projectile, and indexing means mounted on the barrel assembly for rotating the cylinder to align one of the projectile-retaining means with the barrel,
• a trigger mounted on the frame for movement between a rest position and a firing position, the trigger being engageable with the indexing means when the barrel assembly is in the firing position for causing movement of the indexing means and the cylinder when the trigger is moved from the rest position toward the firing position,
• the indexing means including a pawl pivotably mounted on the barrel assembly and ratchet means on the cylinder which are engageable by the pawl for rotating the cylinder as the pawl pivots in one direction, the trigger including a cam which is engageable with the indexing means for pivoting the pawl in said one direction when the trigger is moved from the rest position toward the firing position.

A gun comprising:

• a frame,
• a barrel assembly pivotably mounted on the frame for movement between a firing position and a loading position, the barrel assembly including an elongated barrel, a cylinder rotatably mounted on the barrel assembly for rotation about an axis which extends parallel to the longitudinal axis of the barrel, the cylinder being provided with a plurality of means for retaining a projectile, and indexing means mounted on the barrel assembly for rotating the cylinder to align one of the projectile-retaining means with the barrel,
• a trigger mounted on the frame for movement between a rest position and a firing position, the trigger being engageable with the indexing means when the barrel assembly is in the firing position for causing movement of the indexing means and the cylinder when the trigger is moved from the rest position toward the firing position,
• a hammer pivotably mounted on the frame for movement between a cocked position and a fired position, the hammer having an abutment and a cam mounted thereon, and
• a trigger link extending between the trigger and the hammer and being engageable with the trigger and the abutment on the hammer as the trigger moves from the rest position toward the firing position whereby the hammer is pivoted from its fired position toward its cocked position, the cam on the hammer being engageable with the trigger link as the hammer approaches its cocked position to move the trigger link out of engagement with the abutment.