Patent ID: 8083455

Claim:
A system for positioning a cover relative to a book block, the system comprising: a first drive unit to cause movement of at least one of the book block and the cover; a position sensor operable to detect at least one of a position of the book block and the cover, the position sensor operable to generate a position signal indicative of the position; a controller in communication with the position sensor and the first drive unit, the controller operable to receive the position signal and to control the first drive unit based on the position signal to adjust a relative position of the cover and the book block; a driven member coupled to the first drive unit and configured to move the at least one of the book block and the cover, and wherein the controller at least one of speeds up and slows down the driven member by controlling the first drive unit to adjust the relative position of the cover and the book block, wherein the driven member is configured to move the cover; a drum configured to receive the cover from the driven member and apply the cover to the book block; and a second drive unit coupled to the drum to drive the drum independently of the driven member.