Abstract: A method and apparatus for mounting a panel on a rail member having first and second resilient legs separated by a channel. A groove disposed along a first side of the panel receives a portion of one of the resilient legs of the rail member. The groove extends from a lower surface of the panel toward an upper surface of the panel so that the upper surface extends over the resilient leg received in the groove. The groove includes a first side surface with a first inclined portion and a second side surface with a second inclined portion. The second side surface of the groove is engagable with the inner leg surface of the resilient leg received in the groove to outwardly urge the resilient leg away from the channel of the rail member and toward the first inclined portion of the groove to retain the panel on the rail member.

Abstract: A dam for use with a screen deck for screening materials such as coal, sand, limestone, crushed stone and various ores where the dam regulates the flow of material across the screen deck, can be releasably retained to the screen deck in various positions about the screen deck and readily can be removed and repositioned about the screen deck or replaced with another dam member of a different size, configuration or both to accommodate various applications.