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US4509732A Document handling apparatus for producing folded and bound stacks of documents 失效
文件处理装置,用于生成折叠和堆叠的文件堆叠

Document handling apparatus for producing folded and bound stacks of
documents
摘要:
A document handling apparatus comprises a first conveyor means for conveying a document to a given location, a document stacking means for receiving documents conveyed by the first conveyor means and maintaining them at said location to form them into a stack, a stapling means for stapling the stack of documents, and a second conveyor means for conveying the stapled stack of documents out of said given location. The first or the second conveyor means comprises a conveyor roller or rollers, and an electromagnetic ball control device which brings a steel ball into abutment against or away from the conveyor rollers in response to an operation of an electromagnet.
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