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US 4,182,051 AGranted
Entertainment and/or educational device
OwnerDennis E. Flynninventor
Life of this patent
Estimating the term…
Abstract
An entertainment and/or educational device is proposed which comprises a housing having oppositely facing windows therein and a display element within the housing having related markings thereon, the individual ones of the said related markings being simultaneously visible through a respective one of the windows and the windows being provided in such disposition on the housing that the respective markings visible thereat can be viewed only from opposite sides of the housing.
Claims2
An entertainment and/or educational device comprising:
- a housing, said housing having therein first and second chambers and a passageway between said chambers;
- said passageway having opposite walls at oppositely directed sides of said housing, each said wall having a window portion and a support portion with the window portion of each said wall being in superimposed relationship with the support portion of the other said wall;
- first and second spools respectively rotatably mounted in said first and second chambers;
- a display element in the form of an elongated film or web having a plurality of pairs of markings thereon, the markings of each said pair being respectively a question and an answer and being respectively on opposite sides of the display element;
- said display element being mounted on the said first and second spools and extending between said spools along said passageway;
- means externally of said housing for manual rotation of said spools to move said display element along said passageway from said first spool to said second spool to successive display positions;
- said walls defining guide surfaces for guiding movement of said display element therebetween;
- the markings of each said pair being offset relative to each other such that the markings of successive said pairs are simultaneously in alignment with said window portions at said successive display positions, whereby in each said position said markings of one said pair are displayed through said window portions but each marking can only be viewed at a respective one of said oppositely directed sides of the housing, and that part of the said display element which is aligned with each said window portion of each said wall is supported by the support portion of the other said wall.
5 more elements
Dependencies are inferred from the claim text.