An adjustable mounting assembly for mounting an instrument on a support member has a first clamping device for releasable clamping engagement with the support member and a second clamping device for securing to an instrument or piece of equipment, with a lockable, adjustable connection between the two...http://www.google.com/patents/US5174533?utm_source=gb-gplus-sharePatent US5174533 - Adjustable instrument mounting assembly
