Clyde, I believe what you are describing is a polar dial. It is what a horizontal dial would look like if it were made for the equator. The Lyman Briggs dial at the national bureau of standards is a polar dial. I think you will have no trouble finding illustrations of this dial type in any of the standard dialling texts, and one picture will be worth a thousand of my words. The hour lines do not intersect, and each runs north-south, all of them parallel to each other. The shadow casting edge of the gnomon also runs north-south, parallel to the horizontal surface of the dial below, never intersecting it (in a non-polar dial the gnomon intersects the dial plane at 6:00).
Bill Gottesman Burlington, VT 44.4674 N 73.2027 W
