Patent ID: 6779788
Filing Date: 2004-08-24
Classification: B65H

Abstract:
In a folding station of a web-fed printing press where a web of printed paper is cut into sections by a cutting cylinder while riding on a folding cylinder, and wherein each paper section has its midpart pushed by a folding blade on the folding cylinder into a jaw cavity in a jaw cylinder in order to be folded into the form of a signature while being transferred from the folding cylinder onto the jaw cylinder, the jaw cavity being formed in the surface of the jaw cylinder and extending parallel to the axis thereof, the jaw cylinder comprising:(a) a pair of hooks mounted adjacent a pair of opposite ends of the jaw cavity in the jaw cylinder for movement into and out of a space created by the midpart of each paper section upon insertion in the jaw cavity; and (b) hook drive means for causing the hooks to enter the space bounded by the midpart of each paper section when the same is inserted in the jaw cavity, and to withdraw from the space after the paper section has been folded on the jaw cylinder; (c) whereby each paper section has its midpart retained in the jaw cavity in the jaw cylinder by the pair of hooks while being folded.