| 摘要 |
A rotary press mechanism is disclosed, including a die roller and a cooperating anvil roller. The anvil roller is formed to have an annular outer surface. The die roller is formed to have an annular outer surface portion and a cutting die formed on the die roller surface. The cutting die is formed of a pattern of substantially identical cutting elements shaped to substantially outline a rectangular area. The cutting die elements include cutting edge portions extending from the annular outer surface portions of the die roller a distance substantially equal to the distance between the annular outer surface portions of the die roller and anvil roller. The die elements may also include relief portions, disposed intermediate said cutting edge portions along the rectangular outline. The relief portions may be flush with the annular outer surface portion of the die roller, or may extend from the die roller annular outer surface portion a shorter distance than the die element cutting edge portion. The die roller and the anvil roller cooperate to outline and substantially cut a pattern of punches on the tabulation cards passing therethrough. The punches are readily removeable from the tabulation card upon the application of pressure.
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