Michael W. Morrissey was elected in 2010 as Norfolk District Attorney. Prior to his election, he served as the State Senator from the Norfolk and Plymouth District from 1992 to 2010. In addition, he served in the Massachusetts House of Representatives from 1977 to 1992.
A pneumatic tire is a round, rubber tire that is inflated with air. The most common example of pneumatic tires in everyday life is the tires on an automobile. The pneumatic tire can also be found on bicycles, wheelchairs and forklifts.
Tire bead is the term for the edge of a tire that sits on the wheel. Wheels for automobiles, bicycles, etc. are made with a small slot or groove into which the tire bead sits. When the tire is properly inflated the air pressure within the tire keeps the bead in this groove. It is common amongst drivers of off-road vehicles to decrease the air pressure in their tires.