May not be obvious to most, how it works.
Cow goes down an alley. Your following her. You grab the gate on the right, followed by the gate on the left. Get the one on the left, ahead of the right. At some point, the cow is in triangle, surrounded by pen. When she turns facing the left, use the gate on the right to sandwich her against the side
Now, you've got the cow wedged in. She can't back up, and she go forward. You have the leverage of the gate on the right to hold the gate shut. We would eventually stick the biggest all thread bolt I've ever seen my life behind her. Had a big nut on it. You could squeeze her down as tight as you wanted.
Really, a poor man's solution to an age old problem. How am I going to restrain this cow? Useless for AI, and dehorning. Fairly nice to have though, if you don't have anything else.
