crack. Holes are drilled into the top of the bell, and the clapper is attached to the inside of the bell either by a metal link or a leather strap. Finally the bell is installed in the tower. See also Benjamin Hanks (1755–1824), goldsmith, instrument maker, and first maker of bronze cannons and church bells in America. Leamy Acoustic Art References Literature cited External links Video explaining bell Tuning Videos of the 23 tonne London Olympic bell being cast, tuned and installed. Metalworking occupations Campanology Casting (manufacturing)