Abstract: A method for controlling the retention time of a casting retained in a mold comprises providing a vibratory shakeout conveyor having a conveying surface, placing the mold on the conveyor; and imparting a vibratory force to the conveyor at a predetermined angle to the conveying surface whereby the predetermined angle determines the retention time of said casting in said mold. A plurality of sensors for detecting mold position and media breakdown may also be employed to detect appropriate mold retention time.

Abstract: A method for controlling the retention time of a casting retained in a mold comprises providing a vibratory shakeout conveyor having a conveying surface, placing the mold on the conveyor; and imparting a vibratory force to the conveyor at a predetermined angle to the conveying surface whereby the predetermined angle determines the retention time of said casting in said mold. A plurality of sensors for detecting mold position and media breakdown may also be employed to detect appropriate mold retention time.

Abstract: A conveyor for conveying material from one location to another location includes a device for contacting the material on the conveyor as the material is being conveyed to crush, break, pulverize, or otherwise attenuate the material. The material attenuating device is particularly well suited for use on vibratory conveyors but can also be used in conjunction with other types of conveyors such as belt conveyors and the like. The material attenuating device includes a lever pivotally mounted for oscillatory motion. The lever is connected to the conveyor, or to a drive for the conveyor. The free end of the lever has a tool for contacting the material on the conveyor as it is being conveyed as the lever oscillates to crush, break, pulverize or otherwise attenuate the material.