How did cylinder presses increase printing speed in the 19th century?

In the 19th century, cylinder presses significantly increased printing speed by replacing the slow, flat-surface pressure of traditional platen presses with the efficiency of a rotating cylinder.1

Unlike a platen, which required pressure to be spread across the entire surface simultaneously, a cylinder concentrates pressure on only the narrow strip of paper currently in contact with the typeform. This geometric advantage allowed for a more efficient, cyclical printing process.1

Key developments that drove these speed increases included:

• Mechanization: The integration of steam power allowed for the automation of the printing cycle, including the movement of the bed and the inking of forms by rollers.1
• Rotary Motion: By using a cylinder to press paper against a moving flatbed, presses like the one used by The Times in 1814 could achieve speeds of 1,100 sheets per hour.1
• Refined Cylinder Action: Innovations such as the stop-cylinder press and the two-revolution press reduced mechanical jerkiness, allowing for smoother, faster operation.12
• Perfecting Machines: These designs used two cylinders to print both sides of a sheet in a single pass, further increasing output.12