An apparatus (10) for holding down a drum (16) includes a base plate (42), a pair of mounting plates (60) fixedly secured to the base plate (42) located on opposite sides of the base plate (42), and a pair of hold-down plates (52,54). Each of the hold-down plates (52,54) are movably mounted upon one...http://www.google.es/patents/US5860570?utm_source=gb-gplus-sharePatente US5860570 - Drum hold-down apparatus
