Rich - unfortunately I was unable to open the site - problems with adsl router in BC at the moment.
I was however able to locate the patent number and saw the patent and the original claims at the uspto office site.
Carl's last name is spelled moesly not mosely as I thought.
I cannot seem to get the images to post on the site - but if someone is able it would be a great reference point of understanding the desing.
go to
www.uspto.gov and click patents and the search.
then type in the number 3,237,581 (you need the commas) and you can see all the drawings and the text of the claims.