Patent ID: 8602957
Filing Date: 2013-12-10
Classification: B26D,B41F,B65H

Abstract:
1. A printing press folder comprising: a pair of cutting cylinders cutting a web at a cutting location to form signatures; a pair of transport cylinders positively gripping and transporting the signatures, the transport cylinders defining a first nip, the transport cylinders each having a radius of a first length, the first nip and the cutting location being separated by a first distance that is slightly shorter than a length of each of the signatures; and a pair of acceleration cylinders positively gripping and transporting the signatures, the acceleration cylinders defining a second nip, acceleration cylinders each having a radius of a second length greater than the first length, the pair of transport cylinders receiving and releasing the signatures at a first velocity and the pair of acceleration cylinders receiving the signatures from the pair of transport cylinders and releasing the signatures at a second velocity that is greater than the first velocity, the first nip and the second nip being separated by a distance that is slightly shorter than the length of each of the signatures, such that the transport cylinders release each of the signatures as the acceleration cylinders grip the respective signature and the transport and acceleration cylinders maintain positive control over the signatures during transport; and a motor rotating the transport cylinders and the acceleration cylinders at a same angular velocity such that transport cylinders have a surface velocity less than a surface velocity of the acceleration cylinders.