| 摘要 |
654,169. Optical apparatus. TAYLOR, A. K. Nov. 21, 1947, No. 30930. Convention date, March 23, 1939. [Class 97 (i)] [Also in Group XVI] A transparent reflector 27, Figs. 5 and 6, is located midway between and parallel to a printing forme 1 containing movable members to be registered thereon, and a sheet 7 placed on glass 6 and having on it representation of detail with which the movable members are to be registered (see Group XVI). The reflector comprises a glass sheet 29, a thin coat of silver 30 and a protecting glass sheet 31 and is mounted in a frame 21 of a slidable carriage 20, the lower part of which is provided with sockets holding four electric bulbs silvered on one side to allow of directing the light to any desired position by turning them. The movable members are moved until they are viewed from 37 in alignment with the reflected image of the corresponding representation on the sheet 7.
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