The Friday Fix

Problem solving for farmers and ranchers is an everyday activity. I believe most of them are addicted to solving problems.  For example, a couple months ago we were at our friend's house.  Jennifer sews a lot. Her bobbin winder was broken, so Jake took it apart and said if he had the part he could fix it.  You would have to ask Jennifer if she believes him. (http://sewitsmidnightmama.blogspot.com/)

Here are the questions for the night. Feel free to answer all or just one.

1. What is this contraption?

2. What is the problem?

3. How do you fix it?