Patent ID: 7228997

Claim:
An apparatus for nailing a plurality of cross members to an underlying stringer, the apparatus comprising: a support for supporting the stringer and the plurality of cross members; a carriage moving in a continuous motion without stopping over the plurality of cross members during nailing of the cross members until the plurality of cross members are nailed to the stringer; at least one nailing gun pivotally secured to the carriage for driving nails into the plurality of cross members and the underlying stringer to secure the plurality of cross members to the stringer wherein the nail gun pivots in a direction opposite the moving carriage during nailing; a hydraulic accumulator mounted on the carriage in hydraulic communication with the at least one nailing gun for supplying hydraulic fluid under pressure to provide a force to the nailing gun for nailing the plurality of cross members to the stringer; and further comprising a pneumatic system for positioning the at least one nailing gun to a nail driving position.