1) Sheet lifter
Usually a below-the-hook (hoist or balancer) material handling device that utilizes two "claws" that grab a piece or pieces of sheet metal or wood. These claws are "squeezed" by means of a ratchet and turning wheel and wrap around the sides of the sheet. A lip on the lower portion of the claws prevents the sheet from falling out of the lifter. The sheet lifter is attached to the lifting device by means of a bail at the top of the device.