This is our jackscrew, also known as a screw jack or barn jack. Made of cast iron and still in good condition, this jack served its purpose for countless years. In order to raise the jack, a leadscrew bar fixes in the holes at the top. When the bar is turned the main threaded shaft raises, jacking up the object above it. Jackscrews served many purposes around the farm. From lifting moderate to heavy weights, such as tractors and farm equipment, to supporting heavier loads like houses/barns, the jackscrew was a very useful tool to have around. Our screw jack has the markings “141 3/4” along the side, help us out and comment below what you think this could mean!