Beltfeeder for an automatic gas pressure loaded weapon in particular a machine cannon

摘要

An ammunition belt feeding device for a machine cannon is driven by branched off gas via a gas piston cartridges are alternatively fed by two transport wheels from two sides into a loading chamber of the machine cannon. Two feed star sprocket wheels are operatively connected to two feed shafts rotatably mounted in a housing of the weapon and operatively engage the ammunition belts fed from two sides so as to alternatively feed from each ammunition belt into the loading chamber. A pair of locking pawls in the form of two-armed levers are pivotally mounted in the housing of the weapon and coact with the pair of sprocket wheels. In a first embodiment of the invention a coil spring for each locking pawl is operatively connected to one arm of the two-armed lever so as to urge to other arm towards the sprocket wheel. In both embodiments of invention a pinion wheel having a cam surface is also coaxially mounted on each feed shaft and its cam surface coacts with the other arm of the two-armed lever. In the first embodiment a control pin for each pinion wheel is slidably mounted in the housing of the weapon and is disposed between the pinion wheel and the other arm of the two-armed lever. In the second embodiment of the invention the cam surface of the pinion wheel and the two-armed lever are constructed so that the coil spring and control arm can be dispensed with.