Clamping device for optionally securing a blanket or a printing plate

Claim 1

A clamping device disposed in the channel of a rotary press cylinder for recessed in-line varnishing comprising, in combination, dual purpose clamping means disposed in said channel comprising means for optionally clamping a printing plate having substantially straight ends or means for optionally clamping a blanket having reinforced bent ends to said cylinder, said dual purpose clamping means including, as said plate clamping means, first sets of clamping screws and a pair of axis-parallel clamping bars each having a top part and a bottom part defining substantially axially and circumferentially disposed surfaces between which said printing plate ends are fixed by means of said first set of clamping screws, a plurality of clamping guides and second sets of clamping screws disposed in said channel, said clamping bars being circumferentially adjustable in parallel or an inclined relationship to one another in said guides by means of said second sets of clamping screws bearing against said cylinder, a plurality of axial set screws disposed in said channel, said clamping bars also being axially adjustable by said setscrews, and said dual purpose clamping means including as said blanket clamping means said substantially axially and circumferentially disposed surfaces and a substantially radially disposed groove in which said reinforced bent blanket ends are inserted and are secured therein by said top part and said first sets of clamping screws.