Inspired by other designs seen on YouTube: hopefully with some improvements.
The short extension of the pivot point makes the arch balance almost perfectly with the log lifted.
The extension handle fits inside the main tube, so when it is used without the extension there is no inconvenient projection.
Cost was kept as low as possible, particularly with the wheels. Only time will tell whether they are up to the job. Unlike some designs, the tongs were made with no swivel as this appears to be a nuisance.
Video of the tongs here https://www.youtube.com/watch?v=waGEW...
Drawings and some more photos here https://www.btcloud.bt.com/?shareObject=10ab532e-8eee-f745-2584-0181ae54fd5f
