Element for a didactic play, and a set formed by such elements
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United States of America Patent
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May 19, 1992
Grant Date -
N/A
app pub date -
Nov 9, 1990
filing date -
Nov 17, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An element for a didactic play, of the type capable of showing several surfaces carrying different representations, which may possibly be combined with the representations of other elements forming a set, in order to compose writings, images or the like, comprising a support, a prismatic body pivoted on the support and carrying on its faces some representations, and a control member carried by the support and capable, when operated, of acting on the prismatic body by causing a rotation thereof along the angle by which each face of the element is replaced by the subsequent face. The control member is formed by a push-button whose operation causes a rotation of the prismatic body in a preestablished direction by acting, by means of a pawl being a part of an inner operating member, onto an arrangement with escapement wheel carried by an end of the prismatic body. The set of such elements moreover includes a tray suitable for containing a number of elements, ordered by lines and columns.
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Cited Art Landscape
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