Join Date: May 2020
Location: mays landing nj.
I watched this method when visiting my Aunt . The trailer had 12 logs on it. Pulled with a New Holland farm tractor.
A gantry was made like a childs swing set, A frame construction and set on 6x6" skids.
The legs were 4x4's , the head was a double 4x4 and looked like 1/4" thick steel gussets. A solid steel bar was hung under the head and trolley rollers rode on the bar. Electric hoist hung from the roller bracket for lifting. Two ropes and pulleys ,one on each end moved the hoist in position. Trailer was pulled under the gantry, tongs exactly like Woody shows in his post were hooked at approximate center. A log was lifted about 6" and a rope pulled the rollers with the log past the truck.
Log was set down, near the wheels but kept away with wooden chocks. All 12 logs were unloaded this way, truck pulled out The gantry was then pulled out and set up for another load.