Cylinder Press Method of Impression
The type was still mounted on a flat bed but the paper was 
 rolled over it, speeding up the rate at which impressions could be made.
In 1828 and 1830, an English press manufacture, David Napier,
patented a two-revolution cylinder press that operated more
rapid than the one revolution drum press.
Drum Cylinder Press
Two Revolution Press
Method of Impression
Method of Impression
The drum cylinder method consisted of 
The two-revoltion cylinder method consisted of
a partial revolution, stop release, then follow
two complete revolutions to complete the 
through to complete the process and revolution.
process.
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