A motion simulator comprises a deck supported by a number of length-adjustable legs. The legs are connected to a baseplate which is, in turn, supported by a number of swivel arms which support the baseplate relative to a ground plate. The configuration of legs and swivel arms allows the deck five degree...http://www.google.ca/patents/US5975907?utm_source=gb-gplus-sharePatent US5975907 - Motion simulator with movable base plate
