A mandrel for use in a printing apparatus includes a substantially cylindrical mandrel shaft and plastic expansion rings that are slidably and coaxially mounted on the mandrel shaft. The mandrel also includes a locking assembly including a fixed stop ring and a single locking ring that is axially movably mounted on the mandrel shaft. The expansion rings are positioned between the stop ring and the locking ring. In the unlocked position of the locking ring the expansion rings are in a released state in which the axial compression and the radial expansion of the expansion rings are smaller than in a locked position of the locking ring. A printing cylinder sleeve can be fixedly connected to the mandrel by bringing the expansion rings in the radially expanded state. When the printing cylinder sleeve has to be exchanged, this is feasible when the expansion rings are in the released state.

In an example, a roller lock may include a lock to engage with a roller of a feed system, and a leadscrew to engage with the lock. The lock may include a coupling to operably engage with a complementary coupling of the roller. The leadscrew may include an advancer to engage with the lock such that the advancer may translate the lock along a longitudinal axis of the roller so that the lock may engage and disengage with the roller to intermittently prevent the roller from rotating in a forward direction.

In an example, a roller lock may include a lock to engage with a roller of a feed system, and a leadscrew to engage with the lock. The lock may include a coupling to operably engage with a complementary coupling of the roller. The leadscrew may include an advancer to engage with the lock such that the advancer may translate the lock along a longitudinal axis of the roller so that the lock may engage and disengage with the roller to intermittently prevent the roller from rotating in a forward direction.

A device (100) for carrying out a linear displacement of two shafts (110, 120) positioned parallel to each other and each of which is at least indirectly connected to a main cogwheel (111, 121), while the two main cogwheels (111, 121) are mounted for reciprocatory displacement along a straight guide rail 130. The device has phase locking of the two main cogwheels (111, 121) independently of any continuous adjustment to the distance therebetween. The bearing forming the fulcrum of a first main cogwheel (111) determining the velocity of rotation and phase of rotation is in the form of a first vertex (A) of a parallelogram construction (A, B, C, D) formed by the arms (150, 160, 151, 140) pivoted in the region of all vertices (A, B, C, D). On a driving cogwheel 122 disposed opposite to the first vertex (A) there is disposed a third vertex (C) which is driven via an auxiliary cogwheel 122 which is disposed at a second vertex (B) of the parallelogram construction (A, B, C, D) and which in turn drives a second main cogwheel 121) at the same speed as, and in phase with, the first main cogwheel (111).

A device (100) for carrying out a linear displacement of two shafts (110, 120) positioned parallel to each other and each of which is at least indirectly connected to a main cogwheel (111, 121), while the two main cogwheels (111, 121) are mounted for reciprocatory displacement along a straight guide rail 130. The device has phase locking of the two main cogwheels (111, 121) independently of any continuous adjustment to the distance therebetween. The bearing forming the fulcrum of a first main cogwheel (111) determining the velocity of rotation and phase of rotation is in the form of a first vertex (A) of a parallelogram construction (A, B, C, D) formed by the arms (150, 160, 151, 140) pivoted in the region of all vertices (A, B, C, D). On a driving cogwheel 122 disposed opposite to the first vertex (A) there is disposed a third vertex (C) which is driven via an auxiliary cogwheel 122 which is disposed at a second vertex (B) of the parallelogram construction (A, B, C, D) and which in turn drives a second main cogwheel 121) at the same speed as, and in phase with, the first main cogwheel (111).

A can decorator includes a plate cylinder shaft, a plate cylinder structured to be installed on the plate cylinder shaft, and a plate cylinder locking and unlocking mechanism structured to selectively lock the plate cylinder to the plate cylinder shaft such that the plate cylinder shaft and plate cylinder rotate in conjunction and to selectively unlock the plate cylinder from the plate cylinder shaft such that the plate cylinder shaft and plate cylinder do not rotate in conjunction and the plate cylinder is permitted to be removed from the plate cylinder shaft. The plate cylinder locking and unlocking mechanism uses at least one of pneumatic, magnetic, and mechanical power to selectively lock and unlock the plate cylinder.

A can decorator includes a plate cylinder shaft, a plate cylinder structured to be installed on the plate cylinder shaft, and a plate cylinder locking and unlocking mechanism structured to selectively lock the plate cylinder to the plate cylinder shaft such that the plate cylinder shaft and plate cylinder rotate in conjunction and to selectively unlock the plate cylinder from the plate cylinder shaft such that the plate cylinder shaft and plate cylinder do not rotate in conjunction and the plate cylinder is permitted to be removed from the plate cylinder shaft. The plate cylinder locking and unlocking mechanism uses at least one of pneumatic, magnetic, and mechanical power to selectively lock and unlock the plate cylinder.

In some examples, a printing device includes a first print drum comprising a first ring gear defined on a surface of the first print drum, a second print drum comprising a second ring gear defined on a surface of the second print drum, a rotatable drive shaft, and pinion gears to engage the first ring gear and the second ring gear, wherein rotation of the drive shaft causes the pinion gears to interact with the first and second ring gears to rotate the first print drum and the second print drum at different angular velocities.

A panel of the present invention includes a substrate, an electrode provided on the substrate, and a transparent conductive layer provided on the substrate along a side of the electrode. The electrode includes a contact region in contact with the transparent conductive layer and a non-contact region out of contact with the transparent conductive layer. Preferably, a part of the electrode is exposed through the transparent conductive layer. Preferably, the conductive layer is separated into one side and the other side of the electrode extending a predetermined direction.

A panel of the present invention includes a substrate, an electrode provided on the substrate, and a transparent conductive layer provided on the substrate along a side of the electrode. The electrode includes a contact region in contact with the transparent conductive layer and a non-contact region out of contact with the transparent conductive layer. Preferably, a part of the electrode is exposed through the transparent conductive layer. Preferably, the conductive layer is separated into one side and the other side of the electrode extending a predetermined direction.