Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and an upper printing group and a lower printing group. The printing unit has at least one throw-on configuration and a blanket-changing throw-off configuration. The blanket cylinders are capable of each receiving at least one tubular blanket. The frame has, in at least one lateral wall, at least one opening to allow the passage of the tubular blankets. In the blanket-changing throw-off configuration, the blanket cylinder of the upper printing group has been moved upwards relative to the position which it occupies in the throw-on configuration and the blanket cylinder of the lower printing group has been moved downwards relative to the position which it occupies in the throw-on configuration, so that an adequate space is provided between the blanket cylinders to allow a web of paper printed by another printing unit to pass between them.

Abstract: A bearing assembly for an axially mobile cylinder in a printing press is provided. The bearing assembly includes an endpiece adapted so as to be mounted on a frame of the press and defining a central axis and a bearing arrangement for bearing a cylinder on the endpiece in rotation about the central axis and in translation along the central axis. The bearing arrangement includes a first bearing which is a radial bearing, notably an exclusively radial roller or needle bearing, and a second bearing which is either an axial/radial combined bearing or an only axial bearing. The second bearing is adapted so as to be fixed or attached with respect to the cylinder and connected to the endpiece via an axial spring with elasticity along the central axis. The second bearing is axially mobile with respect to the endpiece.

Abstract: A process of differentiation of stem cells through the use of specific oxygen concentrations, provided that the stem cells are not human embryonic stem cells, and seeded on a support, in an appropriate culture medium, wherein the differentiation leads to: a. either a first group of specialized differentiated cells under normoxic conditions, and in an appropriate culture medium, b. or a second group of specialized differentiated cells under hypoxic conditions, in a culture medium of the same nature as the one used for obtaining the first group of specialized differentiated cells; the first and second groups of specialized differentiated cells retaining the functional properties of the corresponding specialized differentiated cells respectively obtained through a biological natural process.

Abstract: The invention relates to the use of a unit including a substrate and polyelectrolyte multilayer films deposited thereon in order to: carry out a method involving the proliferation of initial stem or differentiated cells that are brought into contact with the unit; and cover the unit with confluent viable adherent cells resulting from the proliferation of the initial cells, the cover being obtained at the end of a period of no more than one month, such as 14 days, 11 days or, in particular, 7 days, after the initial cells are brought into contact with the unit.

Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and an upper printing group and a lower printing group. The printing unit has at least one throw-on configuration and a blanket-changing throw-off configuration. The blanket cylinders are capable of each receiving at least one tubular blanket. The frame has, in at least one lateral wall, at least one opening to allow the passage of the tubular blankets. In the blanket-changing throw-off configuration, the blanket cylinder of the upper printing group has been moved upwards relative to the position which it occupies in the throw-on configuration and the blanket cylinder of the lower printing group has been moved downwards relative to the position which it occupies in the throw-on configuration, so that an adequate space is provided between the blanket cylinders to allow a web of paper printed by another printing unit to pass between them.

Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and an upper printing group and a lower printing group. The printing unit has at least one throw-on configuration and a blanket-changing throw-off configuration. The blanket cylinders are capable of each receiving at least one tubular blanket. The frame has, in at least one lateral wall, at least one opening to allow the passage of the tubular blankets. In the blanket-changing throw-off configuration, the blanket cylinder of the upper printing group has been moved upwards relative to the position which it occupies in the throw-on configuration and the blanket cylinder of the lower printing group has been moved downwards relative to the position which it occupies in the throw-on configuration, so that an adequate space is provided between the blanket cylinders to allow a web of paper printed by another printing unit to pass between them.

Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and at least a first and a second printing group, each printing group including a blanket cylinder and a plate cylinder. The printing unit also includes a cylinder support and movement mechanism, at least one throw-on configuration in which the blanket cylinders are pressed against each other and against the plate cylinders, and at least one throw-off configuration in which the blanket cylinders are spaced apart from each other. The support and movement mechanism includes at least one connection which connects the plate cylinder and the blanket cylinder of at least one printing group. The connection includes a region of lesser strength which is intended to break under a predetermined force.

Abstract: A printing for printing a web of paper is provided. The printing unit includes a frame and at least an upper printing group and a lower printing group. The printing unit has at least a throw-on configuration, an idle throw-off configuration and a blanket-changing throw-off configuration. In the blanket-changing throw-off configuration, the blanket cylinder of the upper printing group has been moved upwards relative to the position which it occupies in the throw-on configuration and in which the blanket cylinder of the lower printing group has been moved downwards relative to the position which it occupies in the throw-on configuration, so that an adequate space is provided between the blanket cylinders to allow a web of paper printed by another printing unit to pass between them.

Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and at least an upper printing group and a lower printing group, each printing group including a blanket cylinder and a plate cylinder. The printing unit also including a cylinder support and movement and having at least one throw-on configuration in which the blanket cylinders are pressed against each other and against the plate cylinders, and at least one throw-off configuration in which the blanket cylinders are spaced apart from each other. In the throw-off configuration, the upper blanket cylinder has been raised by a first height relative to the position which it occupies in a throw-on configuration, and the lower blanket cylinder has been lowered by a second height relative to the position which it occupies in a throw-on configuration, and the second height is different from the first height.

Abstract: A method according to the invention of changing the mounting condition, in particular of mounting or dismounting of a printing master on a printing master cylinder having a first receiving element for the leading edge and a second receiving element for the trailing edge of the printing master includes rotating the printing master cylinder at a first speed, actuating the first receiving element in at least one first phase position and actuating the second receiving element in at least one second phase position. At least between a third phase position and a fourth phase position, the printing master cylinder may be rotated at a second speed, which differs from the first speed. Due to the reduced speed, the window of time for actuating one or both receiving elements can be extended to increase the precision and reliability of the locking and release.

Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and at least a first and a second printing group, each printing group including a blanket cylinder and a plate cylinder. The printing unit also includes a cylinder support and movement mechanism, at least one throw-on configuration in which the blanket cylinders are pressed against each other and against the plate cylinders, and at least one throw-off configuration in which the blanket cylinders are spaced apart from each other. The support and movement mechanism includes at least one connection which connects the plate cylinder and the blanket cylinder of at least one printing group. The connection includes a region of lesser strength which is intended to break under a predetermined force.

Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and at least an upper printing group and a lower printing group, each printing group including a blanket cylinder and a plate cylinder. The printing unit also including a cylinder support and movement and having at least one throw-on configuration in which the blanket cylinders are pressed against each other and against the plate cylinders, and at least one throw-off configuration in which the blanket cylinders are spaced apart from each other. In the throw-off configuration, the upper blanket cylinder has been raised by a first height relative to the position which it occupies in a throw-on configuration, and the lower blanket cylinder has been lowered by a second height relative to the position which it occupies in a throw-on configuration, and the second height is different from the first height.

Abstract: A printing for printing a web of paper is provided. The printing unit includes a frame and at least an upper printing group and a lower printing group. The printing unit has at least a throw-on configuration, an idle throw-off configuration and a blanket-changing throw-off configuration. In the blanket-changing throw-off configuration, the blanket cylinder of the upper printing group has been moved upwards relative to the position which it occupies in the throw-on configuration and in which the blanket cylinder of the lower printing group has been moved downwards relative to the position which it occupies in the throw-on configuration, so that an adequate space is provided between the blanket cylinders to allow a web of paper printed by another printing unit to pass between them.

Abstract: A printing unit for printing a web of paper is provided. The printing unit includes a frame and an upper printing group and a lower printing group. The printing unit has at least one throw-on configuration and a blanket-changing throw-off configuration. The blanket cylinders are capable of each receiving at least one tubular blanket. The frame has, in at least one lateral wall, at least one opening to allow the passage of the tubular blankets. In the blanket-changing throw-off configuration, the blanket cylinder of the upper printing group has been moved upwards relative to the position which it occupies in the throw-on configuration and the blanket cylinder of the lower printing group has been moved downwards relative to the position which it occupies in the throw-on configuration, so that an adequate space is provided between the blanket cylinders to allow a web of paper printed by another printing unit to pass between them.

Abstract: A method according to the invention of changing the mounting condition, in particular of mounting or dismounting of a printing master on a printing master cylinder having a first receiving element for the leading edge and a second receiving element for the trailing edge of the printing master includes rotating the printing master cylinder at a first speed, actuating the first receiving element in at least one first phase position and actuating the second receiving element in at least one second phase position. At least between a third phase position and a fourth phase position, the printing master cylinder may be rotated at a second speed, which differs from the first speed. Due to the reduced speed, the window of time for actuating one or both receiving elements can be extended to increase the precision and reliability of the locking and release.