39 both side plates 16 16 39 cover the gap formed between compression rolls 2 and 2 39 in the operative position of the crimping device thbe edges 70 70 39 of plates 16 16 facing towards the compression roll 2 39 extend vertically each plate 16 16 39 at the side thereof opposite to the vertical edge is provided with a foot or projection 18 intermediate elements 17 17 39 have sharp edges 20 20 39 extended in the proximity of the gap between the compression rolls which edges are arranged as peeling off blades relative to the outer surfaces of the compression rolls 2 2 39 usually the shape of the intermediate element 17 is adjusted to the shape of foot 18 and the intermediate element 17 39 is arranged mirror inverted relative to the element 17 the intermediate element 17 forms with plates 16 16 39 a rigid integral unit this unit simultaneously serves as a spacer and is adapted for maintaining a narrow gap between the side surfaces of compression rolls 2 2 39 and the upper surfaces of plates 16 16 39 facing towards those side surfaces each plate 16 16 39 has a vertically extended bore 21 which is closed from above and extends downwardly up to edges 20 20 39 a horizontal bore 22 provided in each plate 16 16 39 merges into each vertical bore respectively bore 22 is.