Well then in the absense of a photo so far - I will keep it simple !
It is impossible that the Wrights ever built an aircraft with a prop underneath for the reasons I stated in my previous 2 posts on the subject !
The chain drive through 90 degrees would be extremely difficult to design/build.
It would be impossible to 'swing' the 'lift' prop to start the engine.
It would be impossible to use the launching rail method of take off.
And finally -the Wrights were not short of lifting power from their cambered wings - so why would they even think about a lift prop ?
All they needed was forward thrust from their 2 pusher props to give airspeed,and they were a fairly simple sprocket and chain drive design !