Abstract: A method and apparatus is disclosed for ultrasonically welding at their edges a strip of their copper foil to a second strip of supporting metal, preferably aluminum or stainless steel having a thickness greater than the copper foil. The welded strips are subsequently sheared into panels for use in making printed circuit boards.

Abstract: A compact and inexpensive height adjustable base for a video display. The invention provides height adjustment while maintaining a constant screen orientation with respect to the horizontal. This base is designed for a seated user. It keeps the footprint of the base to a minimum, and by proper shaping, allows most keyboards to share some of its footprint area. The minimum height is only slightly higher than the height of non-adjustable bases, and the maximum height is selected to provide a convenient height for viewing by operators of any stature, and to keep the structural requirements of the stress bearing components low. By keeping the structural requirements low, the material and assembly costs may be kept low, leading to a cost effective height adjustable base.