Abstract: A head track and partition system using such head track and method of installing the same. The head track includes a horizontal web, a pair of vertical flanges extending downward from the web, and a pair of horizontal coplanar flanges extending laterally outward from the web. The horizontal flanges have a free edge and a width greater that the thickness of a sheet of wall panel to be positioned therebelow, thereby creating an exposed flange portion extending outwardly above such wall panel. The exposed flange portion acts both to shield ceiling tiles from slopping of excess joint compound applied to the top end of the wall panel, and to form a cosmetic appearance along the interface of the partition wall and ceiling which is uniform with the T-bars and L-bars of the ceiling grid. The partition system is assembled in few steps, preferably using a head track fabricated at low cost.

Abstract: A head track and partition system using such head track and method of installing the same. The head track includes a horizontal web, a pair of vertical flanges extending downward from the web, and a pair of horizontal coplanar flanges extending laterally outward from the web. The horizontal flanges have a free edge and width greater that the thickness of a sheet of wall panel to be positioned therebelow, thereby creating an exposed flange portion extending outwardly above such wall panel. The exposed flange portion acts both to shield ceiling tiles from slopping of excess joint compound applied to the top end of the wall panel, and to form a cosmetic appearance along the interface of the partition wall and ceiling which is uniform with the T-bars and L-bars of the ceiling grid. The partition system is assembled in few steps, preferably using a head track fabricated at low cost.

Abstract: The combination of a dipper stick and pivotable bucket of a backhoe and a detachable, folding, clamping device attached to the dipper stick, the clamping device comprising an elongated jaw member pivotably attached to the distal end of the dipper stick and having a serrated member facing the bucket, the jaw member being pivotable to an operative position substantially perpendicular to the dipper stick and to an inoperative position parallel to and closely adjacent to the dipper stick; and a bracing support member pivotably attached to the free end of the jaw member and attachable to said dipper stick when in the operative position.