What a silly misspelling mistake.
It most be that trip the company took to "Medieval Times" in Dallas the other day, where the waitresses kept calling themselves "wenches". Even though a colleague and I were having fun trying to speak Elizabethan English while we were there, I tried not to let that particular word slip into my brain, but it must have gotten in there anyway.
Obviously, "winch" is the correct spelling.
PS - The more I read the previous posts, the funnier they get.