Abstract: A magnetic card reading apparatus for use as a teaching aid includes a card forwarding device which is operated by placing a magnetic information card in a starting position on a card path to move the card in a forward direction under a constant pressure and at a uniform speed. The card forwarding device has a lever member operated upon contact with the card when it is in its starting position, an arm member operatively associated with the lever member, and a pressure supply device operatively associated with the arm member for placing the card under pressure and moving it forward at a uniform speed.The apparatus further may include a card return device which is operated upon depression of an appropriate control button for moving the card back to the starting position or any selected position for repeated reading.

Abstract: A sound recording and reproducing apparatus for receiving a two-part cassette-type case containing a stack of records or sheets carrying mechanically or magnetically recorded information. The apparatus includes a record selecting mechanism which is operated for selecting any one of the stacked records in the case for recording or reproduction by separating the stack of records into upper and lower parts and placing the uppermost record of the lower-part of the stack in a position for recording or reproduction while moving the upper-part of the stack up away from the lower-part of the stack. The records or sheets for use with the apparatus have a particular selecting aperture arrangement, and the record selecting mechanism of the apparatus includes selecting rods which are operated to select records according to the particular selecting requirements of the records. The cassette-type case consists of two releasably locked parts, and permits a selection of records by operating the selecting rods.