Arrangement for horizontally orienting a rotatable platform for a weapon

摘要

An arrangement for horizontally orienting a rotatable weapon support platform. The arrangement has a base surface (generally the roof or fuselage of an armored vehicle) and a pair of cylindrical members rotatably mounted thereon, on the top one of which the weapon support platform is rotatably mounted. The bottom cylindrical member is rotatably mounted on the base surface. The latter surface is generally sloped and canted and the arrangement serves to compensate for the slope and cant and horizontally orients the weapon support platform. The top and bottom members each have one end surface which is normal to the longitudinal axis thereof and one end surface which is skewed with respect to the longitudinal axis. The respective skewed end surfaces mutually confront each other and are parallel to each other. The horizontation process is effected by joint rotation of the top and bottom members about the vertical axis of the armored vehicle and thereafter a rotation of the top and bottom members in mutually opposite directions.