Cylinder lockup for wrap-around plates and blankets

Claim 1

IN A ROTARY PRINTING PRESS A CLAMPING DEVICE FOR WRAP-AROUND PLATES OR BLANKETS COMPRISING A ROTARY CYLINDER, AT LEAST ONE WRAP-AROUND PERIPHERAL MEMBER THEREON, A LONGITUDINAL SURFACE SLOT IN SAID CYLINDER FOR RECEIVING THE ENDS OF EACH WRAP-AROUND MEMBER, MEANS INCLUDING AT LEAST ONE PLATE CLAMP CARRIED IN SAID SLOT FOR RELEASABLY ENGAGING ONE END OF AND TENSIONING EACH PERIPHERAL MEMBER TO THE CYLINDER AND AGAINST THE OTHER END OF SAID MEMBER, SPRING ACTUATED MEANS FOR CONTACTING A CLAMP AND URGING SAME INTO TENSIONING ENGAGEMENT WITH SAID PERIPHERAL MEMBER, MEANS OPERABLE FROM BOTH CYLINDER ENDS FOR ACTUATING SAID ENGAGING AND TENSIONING MEANS IN STRAIGHT AND ARCUATE PATHS FOR RELEASABLY TENSIONING A MEMBER TO THE CYLINDER, SAID LAST NAMED MEANS COMPRISING A CHANNEL IN SAID CYLINDER SLOT, A CLAMP PROJECTION MOVABLE THEREIN AND INTO AND OUT OF CONTACT WITH THE CYLINDER ADJACENT TO SAID SLOT, AND CLAMP ENGAGING MEANS ON SAID ACTUATING MEANS FOR URGING THE CLAMP AGAINST SAID SPRING ACTUATING MEANS TO RELEASE SAID PERIPHERAL MEMBER FROM THE CYLINDER.