A special thank you to Margot Duchesneau for providing me with these pictures of
her Try-On Conic sock machine..
This looks to be the same machine as the "Tuttle" that was
manufactured by the Lamb Knitting Machine Company.
The salesman's flyer for Tuttle states
these are the first sock knitting machines that were made with ribbers.
Interestingly enough, the ribbers used the same needles as the cylinders.