Assertion: bobbin's thread | /r/CapableOf | pass the bobbin case
Facets:
Source sentences:
text: Enough upper thread is pulled from above to pass around the bobbin case, which sits loosely inside the hook frame such that loops of thread can pass completely over it.
text: If you have ever hit the hook with a needle, it will be scarred and will catch the thread every time the upper thread passes around the bobbin case.