Mechanical connection between aiming device and firearm - has lever arms compensating thermal distortions between mounting and aiming device

摘要

The mechanical connection between the optical aiming device and the firearm has parallelogram type guides. The errors caused by the temp. differences are compensated. The firearm can be connected to an armoured vehicle, ship or tank turret. This mounting forms the base of the system. On a point of the base is arranged a double arm lever whose one arm is connected with the firearm. The rotating point of the double armed lever is arranged at a point on the base in which the temp. change varies the distance of the rotating point (1) of the lever from the rotating pivot point (3) of the firearm and from the pivoted point (2) of the optical aiming device in relation to the lever arm.