Abstract: The adjustable tool holder comprising a base plate has a top surface with a longitudinal groove thereon. An intermediate plate has a bottom surface ribbed at the center to be fitted into the longitudinal groove, and a top surface with two transverse grooves at the opposing ends of the top surface. A block piece is mounted between the transverse grooves and an elongated rod is extended across one of the transverse groove with its inner end connected with a roller. A top plate has its bottom surface formed with a recess for receiving the block piece and it is formed with an inclined surface for enabling the elongated rod to engage with the roller and to move the top plate in transverse directions. An operating rod is extended from the outer end of the base plate is used for adjusting the longitudinal movements of the top plate.

Abstract: An apparatus for centering and orienting article comprising a centering body having a bore extending therethrough, a plurality of support members extending from the upper end of the centering body, an arm pivotally attached between two adjacent support members, a rod received in the bore having slidable and rotatable movement; a centering base attached on top of the rod which include the article holding space at the center and a plurality of slots extending from the periphery towards the center of the centering base. A centering finger is slidably attached to each slots of the base. When the rod is extended upwards it engages with the arm which in effect moves the centering finger away from the center of article placement area; and when rod is lowered and disengages with the arm to revert back to the original position and orientation means provided to rotate the article.