Patent ID: 8454105

Claim:
A beam marking system, comprising: a beam marking device configured to mark on the surface of a beam; a movable arm coupled to the marking device, the movable arm having at least three movable components that collectively move the beam marking device along or about at least three axes; a chassis to which the movable arm is coupled, the chassis including: a plurality of cam rollers on top of which the beam is placed; a plurality of drive rollers for moving the beam in a forward and backward direction on the cam rollers; and a clamp portion containing a plurality of idler rollers, the clamp portion being moveable on the chassis such that when the beam is placed on the cam rollers with one side of the beam being positioned against the drive rollers, the clamp portion can be adjusted so that the idler rollers are positioned against the other side of the beam to thereby apply sufficient force to the beam to enable the drive rollers to move the beam in the forward and backward direction; and a controller that controls the movement of the at least three movable components of the movable arm and the movement of the drive rollers, and controls the operation of the marking device.