Self teaching instrument

Details Self teaching instrument Self teaching instrument

1981-09-21

1983-09-13

Grieb, William H.

Education and demonstration

Question or problem eliciting response

Correctness of response indicated to examine by...

G09B 502

Patent

active

044039670

ABSTRACT:
A self-teaching instrument designed to enable answering a multiple-choice test rapidly and precisely has a separate card compartment attached to the lower front of the unit. Cards can be pushed out vertically one at a time by a roller which is controlled by a driving portion. A card carrier with two hooks transports the card from the card compartment to a predetermined position by a conveyer. On both sides of the conveyer conductive films are attached at six equally divided places. The conductive films aid in locating the holes on the card for hole detectors. In the top row, on the top of the instrument, there are four switches for selecting answers. In the lower row there are the power switch, reverse and forward switch buttons. The upper portion of the switch panel has a transparent viewing screen for visualizing a problem and selected answers. For simplified viewing this is built at a slight angle. Beyond this screen there are correct or wrong answer indicators, counters, speaker and a card recovery container.

REFERENCES:
patent: 3350793 (1967-11-01), Bushnell
patent: 3541699 (1970-11-01), Baker, Jr.
patent: 3645012 (1972-02-01), Fiehler et al.
patent: 3696527 (1972-10-01), Dickman

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