Abstract: This invention relates to a device for determining vibration characteristics of vibrated, supported, generally round, substantially ellipsoid articles, such as eggs, comprising: an elastic hammer with handle and head, for tapping and thereby acoustically vibrating such article, a handle drive element for reciprocating the hammer generally in a plane around an axis in the handle, a microphone arranged immediately adjacent to and directed to the article, for picking up acoustic vibrations generated by the article, and a signal processing means for processing the signals picked up by the microphone for determining vibration characteristics of the article, characterized in that the handle adjacent the axis consists of an arm portion to be driven which is connected, through a hinge element, with a handle end having at the extremity thereof a mount having therein a ball as a head, while at least the hinge element and the handle end form a hammer rod in one piece.

Abstract: This invention relates to a device for determining vibration characteristics of vibrated, supported, generally round, substantially ellipsoid articles, such as eggs, comprising:

Abstract: In a sorting apparatus for, for instance, eggs, an apparatus for turning eggs is arranged. The eggs are located on rollers which are mounted on axes of a roller conveyor. Further provided is a detection device for scanning the direction of orientation of each egg during transport on the roller conveyor, while turning elements are mounted on an endless chain, which turning elements during transport on the roller conveyor pick up the eggs from the roller conveyor, if necessary turn the eggs with the point in a pre-set direction, and subsequently deposit the eggs on a next transporting apparatus. The detection device consists of a device for effecting images of the eggs passing and for electronically processing the images, whereby an orientation signal is formed and a turning signal is delivered to the turning apparatus for turning the eggs in the desired direction.