Gripper

The row of clips holding the sheet of paper as it speeds through the press.
Found on http://www.encyclo.co.uk/local/20829

GRIPPER

A device on a printing machine for holding the sheet during the printing or finishing process.
Found on http://www.encyclo.co.uk/local/21179

Gripper

A series of metal fingers that hold each sheet of paper as it passes through the various stages of the printing process.
Found on http://www.curryprinting.com/resources/glossary.html
No exact match found