Sheet-feeding device for printing presses

Claim 1

IN A PRINTING PRESS SHEET-FEEDING MECHANISM OF THE CHARACTER DESCRIBED FOR FEEDING INDIVIDUAL SHEETS OF PAPER TO BE PRINTED FROM A FEED TABLE TO AN IMPRESSION CYLINDER FOR ENGAGEMENT WITH SHEET GRIPPERS THEREON, THE COMBINATION WHICH COMPRISES SWINGING PRE-GRIPPER MEANS FOR GRIPPING AN EDGE OF A SHEET PAPER ON SAID FEED TABLE AT ONE EDGE THEREOF AND LEADING IT TO THE SURFACE OF SAID IMPRESSION CYLINDER FOR ENGAGEMENT WITH SAID GRIPPERS THEREON, MEANS FOR MOUNTING SAID PRE-GRIPPERS BELOW SAID FEED TABLE FOR SWINGNG MOVEMENT BACK AND FORTH BETWEEN SAID EDGE OF SAID FEED TABLE AND SAID IMPRESSION CYLINER, DRIVE MEAND FOR SWINGING ASID PRE-GRIPPERS INTERMITTENTLY ALONG ONE PATH FROM SAID FEED TABLE TO SAID CYLINDER AND A DIFFERENT PATH RETURNING FROM SAID CYLINDER TO SAID TABLE, AND MEANS FOR ADJUSTING BOTH SAID PATHS HORIZONTALLY WITH RESPECT TO SAID CYLINDER BUT WITHOUT VERTICAL OR HORIZONTAL DISPLACEMENT WITH RESPECT TO SAID FEED TABLE AT THE POINT IN SAID SWINGING MOVEMENT WHERE SAID PRE-GRIPPERS ARE ADJACENT SAID EDGE OF SAID FEED TABLE, SAID ADJUSTING MEANS BEING DISPOSED SUBSTANTIALLY PERPENDICULARLY BELOW SAID EDGE OF SAID FEED TABLE FOR HORIZONTAL DISPLACEMENT OF THE AXES OF SAID SWINGING MOVEMENT OF SAID PRE-GRIPPER MEANS.