Display board for educational exercises

Details Display board for educational exercises Display board for educational exercises

1980-05-16

1982-01-19

Grieb, William H.

Education and demonstration

Means for demonstrating apparatus, product, or surface...

Plaque to selectively align different points on plaque...

434348, 434332, G09B 122

Patent

active

043114695

ABSTRACT:
A display board having a window in which an education exercise unit or task is presented for viewing on a removable plate. Front and rear panels enclose a rotatable disk containing radially arrayed pockets for carrying stacks of removable task plates individually into registry with the front panel window. Each pocket is adapted to maintain a plurality of task plates in tiers. Retaining rings concentric with the axis of rotation of the disk, mounted on the inner face of the front panel, and of successively greater diameter and lesser height, are arranged to be engaged with detents on the removable task plates. A slot in the margin of the front and rear panels in radial alignment with the viewing window, enables a handle on the task plates to be grasped individually for release of their detents and withdrawal from the disk pockets. The task plates, as tokens of achievement by the student, can be accumulated on display racks on the front face of the board. Window masks shield the exercise until it is to be undertaken. Gates are provided to close apertures in the retaining rings to lock the task plates within their pockets.

REFERENCES:
patent: 3036386 (1962-05-01), Seligmann
patent: 3136074 (1964-06-01), Hawkins
patent: 3199228 (1965-08-01), Rubin
patent: 3200517 (1965-08-01), D'Agostino
patent: 3460273 (1969-08-01), Boyd
patent: 3510961 (1970-05-01), Hawkins
patent: 3673712 (1972-07-01), Dacey et al.
patent: 3745673 (1963-07-01), Jimerson et al.
patent: 3762071 (1973-10-01), Coffman et al.

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