| 摘要 |
A photographic enlarging easel is disclosed for positioning and masking photographic paper on a base plate. The easel allows the paper to be positioned anywhere on the base plate and provides masking blades that are removable and can be moved anywhere on the easel. The easel has a base plate with a flat surface for the paper, a rectangular open frame formed of four members, each having substantially similar cross sections, the frame pivoted about a pivot line parallel to and extending outside one edge of the base plate, the frame when in the closed position resting on the flat surface of the base plate allowing the paper to extend beyond the base plate. Paper positioning means are also provided for locating the paper on the base plate, and a plurality of removable carriages, each carriage having a masking blade with a first end rigidly attached thereto, each carriage adapted to slide on a carriage formed integral with each member and extending from side to side of the frame, a second end of the masking blade adapted to slide in a guide slot on an opposite member of the frame, the masking blade resting on the flat surface of the base plate when the frame is in the closed position, each carriage having a locking means to lock the carriage to the member at any position on the track. The frame has at least two sliding scales in each of two places adapted to measure border widths on four sides of the paper in any location in the frame.
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