Device to facilitate the realization of prognostics in gambling (Machine-translation by Google Translate, not legally binding)

摘要

Device for facilitating the making of forecasts in games of chance, characterized by being constituted by a flat plate, provided on its upper face with a succession of accommodation equal to each other and regularly distributed, each of which corresponds to a number reproduced by any system on said plate, on which it is located, in a parallel plane and at a certain distance from it, a flat cover, of transparent material, is defined between both elements a flattened chamber, isolated from the outside, in which they can move freely balls, which tend to fit and stop, by chance, in one or other of the indicated accommodations, defining a certain combination of numbers. (Machine-translation by Google Translate, not legally binding)