{Suction grippers separating from the top of pile and acting on the front part of the articles relatively to the final separating direction this action resulting at least during a part of each separating cycle, in a movement of at least the front part of the articles in a direction opposite to the final separating direction}
{Suction grippers separating from the top of pile and acting on the front part of the articles relatively to the final separating direction this action resulting at least during a part of each separating cycle, in a movement of at least the front part of the articles in a direction opposite to the final separating direction}