| 摘要 |
A printing plate registering method and device having a substantially flat working surface. A punch is provided for punching holes through printing plates and through masking flats located on the working surface. A pair of pin members is provided extending above the working surface and insertable in holes located in a lateral row along one edge of the printing plate. The pin members impart a lateral tension along the row of holes, causing the printing plate to be registered with respect to the pin members and with respect to the working surface. The pin members tangentially nest in the laterally outermost tangent point of such pre-punched register holes, causing precise lateral and longitudinal registering. Selectable pairs of pin members are provided to allow for centering of the printing plate on the easel body. Pairs of such pin members are extendable or retractable upon rotation of a shaft having cam grooves therein. The pin members are spring-biased outwardly to impart such laterally outward tension to the printing plate.
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