what you are describing is SWIVEL...not a horizontal hinge.
this is a cut/paste from what Yoda said about the two:
1. Extend your Left Arm directly in front of your Left Shoulder and parallel to the ground (horizontal). Put your Left Hand into a Karate Chop position.
2. Keeping your Left Shoulder and Body stationary, move the Arm back and forth, just like a gate would swing on its hinges. This is a horizontal hinge action.
3. Once again assume the position in #1 above.
4. This time, do not swing your arm back and forth. Instead, keep it still, and twist the forearm. First palm down. Then, palm up. This is a Swivel Action.
Go to Top of Page
__________________
I'm not a TGM or PGA certified Pro, but I did stay at a Holiday Inn Express last night
PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
ERROR: The request could not be satisfied
504 Gateway Timeout ERROR
The request could not be satisfied.
We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner.
If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation.
Generated by cloudfront (CloudFront) HTTP3 Server
Request ID: Frtvlb6WorYNO019S8T7jgbOlDJkLm-QLH0aJgv2fqMUEYq1Tzw14Q==