Patent ID: 7819724

Claim:
An article of manufacture comprising: a platform; first and second rail support members attached to the platform; at least one rail attached to the first and second rail support members; first and second support member arms, each support member arm supported by the at least one rail so as to slide along the at least one rail; a first support member attached to the first and second support member arms; a first vertical adjustment arm comprising a slot, and comprising a protrusion; a fastening device to secure the first vertical adjustment arm against the first support member; a first pivot member in contact with the first vertical adjustment arm; a tool holder in contact with the first pivot member to pivot about the first pivot member; and a screw, the tool holder including a threaded hole for receiving the screw, the screw including an end for coming into contact with the protrusion of the first vertical adjustment arm so as to adjust the height of the tool holder with respect to the platform.