Abstract: In a photogravure rotary machine, each side of the form cylinder is mounted in a bearing housing, which is secured in a saddle portion of a carriage provided with a sleeve drive. The carriage is displaceably mounted on a guide secured on a machine wall and which carries a pivotally mounted retaining fork for the bearing housing. A locking mechanism is provided for locking the carriage in its operating positon, which is in an operative connection with a switching element that is electrically connected to a machine control. In the range of the extended position of the carriage is arranged an incline with a hinged return feed ratchet for lifting the form cylinder on the machine wall.

Abstract: A rotary printing press assembly having a plurality of serially arranged printing units includes a chain conveyor apparatus for sequentially continuously moving a material web through the successive printing units of the assembly. The forward end of the material web to be passed through the assembly is looped about a lead-in bar which is then engaged by a chain conveyor in order to pass the web through the printing units. A pivoted pawl engaging mechanism fixed to the chain conveyor locks in engagement with a recessed cam surface of the lead-in bars while a locking bolt enters a bore in the lead-in bar to effect driving engagement between the lead-in bar and the conveyor chain. When the lead-in bar has passed through a printing unit the driving pawl is automatically disengaged from the conveyor chain of the printing unit, and for lead-in bar is transferred into engagement with the conveyor chain of a next printing unit.