1976-01-30
1977-05-24
Grieb, William H.
G09B 310
Patent
active
040246507
ABSTRACT:
An educational toy comprising a case, a plurality of changeable question and answer combination cards with notched longitudinal edges, a series of question actuating means and a series of corresponding answer actuating means, an indication mechanism composed of an affirmative indicator and a negative indicator, a series of question setting plates horizontally displaceable arranged beneath the corresponding question actuating means and having at their undersides at least two ribs with different inclined bottom surfaces, a series of answer setting plates connected at the bottoms of the corresponding answer actuating means and vertically displaceable together therewith, a movable board having a series of wedge-shaped posts along one side to be in selective cooperation with one of the said inclined ribs to set the position of the board and a series of supports laterally extended away from the board, and a pair of rods transversely supported at the free ends of the said supports and each having radially extended a series of L-shaped levers to be in selective cooperation with the said answer setting plates so as to raise up either the said affirmative indicator or the said negative indicator.
REFERENCES:
patent: 479534 (1892-07-01), Snaman, Jr.
patent: 2909851 (1959-10-01), Haddock
patent: 3122844 (1964-03-01), Kharasch et al.
patent: 3181252 (1965-05-01), Goldschmidt et al.
patent: 3675341 (1972-07-01), Matsumoto
Liu Hsing-ching
Liu Lan-dih
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