Would you be able to "walk" the thread out 100 yards, and then wind it back up onto the sectional beam? As long as you have the 100 yard measurement correct, you could then temporarily wind it up, and then transfer it to the sectional beam. Interesting problem. :)
Sarah - I'm not sure how your information is going to help us get new weavers interested in the craft. I'm not interested in producing an historical report. These are "highlights" of weaving to spark interest.
The information I presented on Jacquard weaving was presented to me, and several other members of this Forum, by Mr. Zonger of the Coverlet Museum in PA. The details on the mixing of motifs and designs is accurate. Although, I did not detail WHO created the punched cards. If that is important to you, I would suggest you contact Mr. Zonger yourself.
My apologies, but I do not see any "myth" in the information I have presented.
Percentages and numbers of hand vs. power loom weavers are interesting. But I think it will be of more interest to new weavers to know that weaving of some kind has always been with us.
For example, Jacquard Looms could be found scattered throughout the countryside in the North East prior to the Civil War. Handweavers used them to make coverlets and create designs and patterns that were truly and uniquely "American". (It took approx. 9 full-time spinners to supply the weaver with enough daily weft.) The mix of ethnic groups often produced new designs from combinations of custom patterns from their European homelands. Some of these designs and coverlets can be seen at the Coverlet Museum in Bedford, PA. http://www.coverletmuseum.org/ Such work is "inspiring" and, I think, helps to generate interest in weaving.