DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A method and apparatus for aiding the alinement of an element, carried on supporting surface, requiring parallelism to a reference plane or axial orthogonality to that reference plane. A first and second ring are disposed between the element and surface and the second ring, having an interfacing plane, is manipulated such that the interfacing plane is parallel to the reference plane. Suitable attachment is made to assure fixture of the second ring relative to the first ring which is fixed with respect to the surface.
- Marine Engineering