AUTOMATIC SMALL ARMS Russian patent published in 2012 - IPC F41A19/17 

FIELD: weapons and ammunition.

SUBSTANCE: automatic small arms comprises a barrel extension with a receiver to hold a cartridge belt, a lock with a return spring, a trigger mechanism consisting of a hammer catch installed on an axis with a support surface responding to full cock, a spring-loaded thrust of the hammer catch installed as capable of interaction with a trigger lever and a plunger. The hammer catch axis is fixed in the lock perpendicularly to a longitudinal axis. The full cock is made in the form of a ledge at the bottom of the barrel extension. The hammer catch thrust is installed above the hammer catch in the lock hole parallel to the hammer catch axis. The trigger lever is fixed on a vertical axis along a side wall of the barrel extension as capable of interaction with a plunger placed in a hole of the barrel extension side wall. The trigger lever is spring-loaded as capable of displacement together with the axis in vertical direction. In the receiver on the axis parallel to the cartridge belt displacement there is a double-arm lever made in the form of a yoke. One arm of the lever is placed as capable of interaction with a flange of the cartridge case, and the second one is connected with a traction rod arranged along the barrel extension side wall with an eye. The eye is installed on the axis fixed in the barrel extension side wall as capable of rotation and is equipped with a foot bearing contacting with a head of the trigger lever axis. The eye is hingedly connected to a pusher installed in a hole made in the end wall of the barrel extension.

EFFECT: improved practical rate of fire of arms.

2 cl, 7 dwg