Metering rolls doctor blade liquid applicator - has doctor blade end-sections extending angularly upwards from intermediate section to form ink reservoir with metering roll

摘要

The framework supporting the ink metering roll for the print cylinder of a printing press also supports an ink applicator doctor blade which terminates inwardly of the opposite ends of the metering roll. The end portions of the doctor blade extend angularly upward from the intermediate portion to form with the metering roll an ink reservoir. To one end of the reservoirs ink is supplied from a main source of supply and from the opposite end of which excess ink is returned to the source. Resilient pressure is applied to the doctor blade to maintain it in sealing engagement with the metering roll.