Printing plate unloading apparatus and method
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United States of America Patent
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Oct 8, 2013
Grant Date -
Mar 19, 2009
app pub date -
May 5, 2006
filing date -
May 9, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
Apparatus for removing printing plates (8) having leading and trailing edges located in a lock-up slot in a plate cylinder (2) of a rotary printing press, from said plate cylinder (2) is disclosed. The apparatus comprises means for extracting the trailing edge from a lock-up slot which is also operable to partially extract the leading edge from a lock up slot. The apparatus further includes an extraction member for engaging, as the printing cylinder rotates, a portion of the leading edge (8a) of the printing plate protruding from the lock up slot (9) following its partial extraction, to complete the removal of the printing plates from the printing cylinder and leave the removed plates, hanging by their leading edge (8a), on the extraction member. A method of loading printing plates onto a plate cylinder (2) is also disclosed.
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