Abstract: A pan and tilt apparatus for supporting a miniature television camera and an adjustable lens is disclosed. A lens support is hinged to the pan and tilt apparatus for rotation about an axis parallel to the central axis of the lens. The camera is supported by the lens when attached thereto. Parallel mounted drive trains in a drive housing operate the pan and tilt functions and endless slippable drives in the lens support are operative for providing powered lens adjustments.

Abstract: Eddy current probe apparatus having an expansible sleeve thereon capable of hydraulically diametrically expanding a tubular member into engagement with an adjacent structure and capable of hydraulically diametrically expanding a tubular sealing member disposed in the tubular member into engagement with the interior wall of the tubular member, which probe is capable also of detecting the location of the structure and the extent of diametrical expansion of the sealing member and tubular member. The apparatus comprises a support body, expansion means sealingly attached to and surrounding the support body for diametrically expanding the tubular member or sealing member, and electromagnetic means connected to the support body for continuously electromagnetically detecting the variations in the electromagnetic characteristics of the tubular member, sealing member, and structure and the extent of diametrical expansion of the tubular member and sealing member.