Welcome. Have you oiled the machine and bobbin winder? Do you have a manual for your machine? I have had machines that would continue to move the needle, after loosening the clutch knob to wind bobbins. Sometimes it is because it has gummed oil and doesn't work properly. If I put a little bit of upward pressure on the take-up lever when it starts, it will stop and wind the bobbin properly. There are other times that doesn't work and there is more cleaning and oiling to be done.
According to
http://ismacs.net/sears/sears.html "
For instance, there were five major versions of the Minnesota Model A" (emphasis by me). I believe you have a Davis, which was made about 1910. Hopefully, Jon will see this and verify if your machine uses a different system of needle. A picture would help identify.
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https://www.quiltingboard.com/attach...020-01-17-.pdf
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I have found that only the big red
"Reply" button or
"Quote" work to give me the paper clip icon to work for adding pictures.
Janey - Neat people never make the exciting discoveries I do.
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