Abstract: The invention relates to a device for stapling to a material (1) at predetermined distances along a web formed by the material with the aid of a stapling cylinder (2), a counterpressure cylinder (3), a forming drum (4) and a horn (5) which extends around the periphery of the stapling cylinder between the forming drum and the counterpressure cylinder, wherein the stapling cylinder (2) coacts with a stapling fork (6) which is intended to cut a staple-forming section from wire-like material (10) in a region (B) between the stapling cylinder (2) and the forming drum (4) and to form therefrom a U-shaped staple which can be carried by the stapling cylinder (2) to a region (A) between the stapling cylinder (2) and the counterpressure cylinder (3) and there fastened to a material web (1) passing between the stapling cylinder (2) and the counterpressure cylinder (3).

Abstract: A rotary stapling machine includes a first rotatable roller, a staple retainer mounted on the first roller to retain a U-shaped staple in a predetermined orientation, and a second rotatable roller having a die. The first and second rollers are adjacently positioned and spaced to allow material for stapling to pass between. Rotation of the first and second rollers positions the staple retainer and the die in a coacting position wherein the staple legs are bent toward the staple retainer. The die includes a pair of bending plates pivotally mounted in a slot that communicates with an outer surface of the second roller. The bending plates have forming surfaces that contact the legs of the staple and by pivoting toward the first roller, drive the legs toward the staple retainer and hold the legs in a desired bent position.