Inspection machine having right angle probe units

Claim 1

In combination with an inspection machine for use with a work support surface and which has a base movable with respect to said work support surface, a rigid upright column secured to said base, a bracket mounted for longitudinal movement along said column, and an elongate inspection arm defining an axis and having one end secured to said bracket and projecting normally to said column, the projecting end of said arm carrying a first probe unit adapted to be angularly adjustable with respect to said arm and control means carried on the opposed end of said arm for activating said first probe unit for rotation about the axis of said arm, the improvement comprising; A. a housing carried by the projecting end of said inspection arm; B. a second probe unit mounted for rotational movement about a second axis perpendicular to the axis of said arm on said housing and adpated to be set at an anGle with respect to said second axis of rotation; C. gear means interconnecting said first probe and said second probe for driving said second probe 1. whereby activation of said control means will cause rotation of said second probe around an axis of rotation that is perpendicular to said arm, with said probe sweeping through a plane that is parallel to said work support surface.