| 摘要 |
A number selector and card marker in accordance with this invention is usable in connection with the marking of a card or play slip, and it comprises a substantially flat housing having a slot therein for receiving at least a portion of the card. One part of the housing has a series of closely spaced, carefully aligned holes of equal size, disposed in columns and rows. The placement of the holes of the series closely coincides with the placement of rectangular boxes to be found in the game grids of the card to be marked. An enclosure serves to enclose the series of holes as well as a plurality of small, equal size spheres. Each of these spheres is slightly larger than the holes, so as not to be able to pass therethrough, the size relationship of the spheres to the holes being such that a small portion of each sphere extends below its respective hole when the spheres have settled into the holes. A marking member is located in the housing directly below the series of holes and adjacent the aforementioned slot. A marking device is slidably disposed in the enclosure, for applying pressure to the spheres when they have randomly come to rest in respective holes, the pressure applied to such spheres manifesting itself through the marking member so as to bring about the marking of the boxes of a card reposing in the slot, to make the card readily readable.
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