Abstract: A readily transportable rack or assembly for holding packages or bags in a stable condition, comprising a collapsible and expandable framework for providing spaced, side-by-side compartments, accessible from overhead to place packages or bags therein. The collapsible and expandable frame can be extended linearly providing for compartments of greater size or collapsed linearly for providing compartments of lesser size. Collapsible and expandable frames are adjustably positionable, depending upon a particularly chosen size to correspond to packages or bags to be held. In addition, hooks on a top end of the frames can be utilized for purposes of holding handles of grocery bags to prevent the bags from toppling over. Ideally, the rack is utilized in vehicles to prevent the packages or bags from rolling around in the vehicle during its movement.

Abstract: A computer controlled machine tool contouring system having a cutting element which is positioned relative to a workpiece support table. An actuating means controls the workpiece support table to synchronously rotate about a first axis and slide along a second axis in response to a set of control signals. The actuating means further controls the cutting element to translate along a third axis (the third axis being parallel to the first axis and perpendicular to the second axis) in response to a further set of control signals. The control signals are generated by a control means from stored data signals which are representative of the coordinates of points on the desired workpiece contour, the desired pressure angle of the cutting element at each contour point, the current radius of the cutting element, and the desired cutting element motion along the third axis.