Is a sock loom like a french knitting dolly?
Pretty much
http://www.ebay.co.uk/itm/Set-of-4-...s-Ring-Craft-Kit-Sock-Scarf-Hat-/381169565493
If you can get hold of the inner cardboard tube from a roll of carpet, you can insert nails into a section of it and use them instead of buying a loom.
It means that you can make it tall enough to fit comfortably on the floor between your knees for working. Much easier than struggling with a wee plastic ring.
M