I am still looking DL, but can not find it yet???

Dragon is "Drachen" in german, and if I recall was part of the word referring to this type of beam (Strahl or Trager.) I am wondering now if it was a German text, explaining this fashion of beam work in English and French architecture and how it relates to the German and Swiss forms...I just can remember the term they used?

I understand "trager" to mean carrie beam, or just beam, while "tragbalken" to mean joist, stringer, or ceiling beam.