Magnetic card reader

In a card reader of the type including a body having a pair of opposed surfaces defining there between a guide slot dimensioned to receive cards having information recorded thereon, and a transducer responsive to the information recorded on the cards and positioned adjacent one of the surfaces defining the guide slot for reading-out the information stored on the cards as the cards are inserted in the guide slot;

• the improvement which comprises a body having a smooth convex surface portion positioned directly across the guide slot from said transducer for contacting a card at a single point of contact adjacent said transducer when the card is within the guide slot, mounting means for mounting said body with the convex surface thereof extending into the guide slot to define a gap less than a thickness of a card between said transducer and said convex surface and for permitting displacement of said body in a direction away from said transducer as a card is inserted within the guide slot and within the gap less than the thickness of a card, and biasing means for biasing said body toward said transducer to maintain the gap less than the thickness of a card when no card is inserted therein and for maintaining the convex surface portion of the body in contact with a card inserted in the guide slot at a point directly opposite said transducer to maintain the card adjacent said transducer.