Magnetic printing saddle
AssigneeBeach Manufacturing Corporation
InventorJohn E. Pickard
Life of this patent
Estimating the term…
Abstract
There is disclosed, printing apparatus including a drum having oppositely facing semicylindrical saddles mounted thereon with elongated spaces between the edges of the saddles. The longitudinal edges of the saddles are beveled radially inwardly on themselves and an elongated laminated alternate pole magnet array is mounted in the space between the saddles. A flexible printing plate is provided along one edge thereof with an inwardly bent angle for engaging the beveled edge of the saddle and the opposite edge of the plate is provided with a lockup pad for magnetically engaging the elongated magnet in the space.
Claims9
A magnetically locked printing saddle apparatus for a web printing press and comprising:
- an axially elongated printing cylinder;
- printing saddle means of predetermined radial thickness mounted on said cylinder and terminating in first and second axial edges spaced apart to form therebetween an axial groove having a radial depth corresponding with said predetermined radial thickness;
- an axially elongated magnetic lockup bar disposed on said cylinder in said axial groove and formed with an outwardly facing magnetic locking surface;
- mounting means mounting said lockup bar from said cylinder;
- and,
- a flexible printing plate for mounting on said saddle and inlcuding respective oppositely disposed first and second extremities, said first extremity being engagable with said first axial edge and said second extremity is formed with a radially inwardly turned leg projecting substantially perpendicular to the tangent of the circumferential surface of said saddle at said second edge to engage said second edge and lock said plate from shifting circumferentially on said saddle away from said groove, said second extremity then being bent to project circumferentially from said leg to form said pad disposed over said radially outwardly facing magnetic surface.
Dependencies are inferred from the claim text.