Oakum
Oakum can be used to seal cast iron pipe drains. After setting the pipes together, workers pack oakum into the joints, then pour molten lead into the joint to create a permanent seal. The oakum swells and seals the joint, the "tar" in the oakum prevents rot, and the lead keeps the joint physically tight.
Today, modern methods, such as rubber seals (for example, gaskets or o-rings) are more common.
Bead breaker
Invented in 1984 by David Allen Dayton. A bead breaker is a tool used for separating tires from rims. The inner-most diameter of the tire that interfaces with a wheel is called the Tire Bead. The tire bead is a thicker section of rubber, and is reinforced with braided steel cable, called the Bead Bundle. The inner-most surface of the tire bead creates the air seal between the tire and rim on a radial-ply tire and a bias-ply tire. Often, the bead can become frozen to the rim after rusting or corrosion occurs, requiring the use of a bead breaker in order to be removed.