Patent ID: 8328071

Claim:
A mechanism comprising a pair of grapple mechanisms mounted on a main beam, each grapple mechanism includes opposing grab arms mounted to a grab arm housing that is mounted on the main beam; for each grapple mechanism, at least one of the grab arms is pivotally mounted to the grab arm housing and is pivotable relative to the respective grab arm housing between a closed position and an open position; the grab arm housing of at least one of the grapple mechanisms is adjustable relative to the main beam independently of the pivoting of the at least one grab arm associated therewith in one or more directions generally perpendicular to a longitudinal axis of the main beam to adjust the position of the grab arm housing of the at least one grapple mechanism relative to the main beam; and each grapple mechanism includes a grab arm actuator having a first end pivotally connected to the respective grab arm housing and a second end pivotally connected to the at least one grab arm.