For sale is a vintage METAL SINGLE WHEEL BLOCK & TACKLE PULLEY. This functional pulley is marked with a number 4. Metal pulley weighs about 2 pounds. This pulley measures about 10″ inches long overall, and the block portion is 4 inches long, by 2 1/2 inches wide by 1 1/2 inches deep. Pulley wheel turns freely and is in good working condition. A cool steampunk themed collectible tool.
Pulleys make light work of heavy loads. A single pulley can cut the amount of force needed to lift an object in half. Pulleys were typically used to lift bales of hay into the lofts of barns. A double pulley provides twice the force of a single pulley.