Abstract: A clamping apparatus for adjustably clamping a flexible skirt to a conveyor belt skirt plate comprises a locking member adapted to be driven along a stationary cam member in the form of a pin to exert a force on a clamp plate that has one side abutting the flexible skirt and forcing the skirt against the conveyor belt skirt plate. The locking member has a closed, elongated slot to retain the locking member on the cam pin. The locking member may be pivoted outwardly on the pin to project normal to the clamping plate, which has an aligned bore allowing removal of the clamp plate for installation of a flexible skirt. The cam pin is carried on a clamping body that has a narrow waist that is slidably mounted between a pair of opposed retaining flanges on the channel to adjust the position of the clamping plate relative to the conveyor skirt plate.