Tape recording device

Claim 1

A TAPE RECORDING DEVICE, COMPRISING A SELECTOR MAGNET APATED TO BE ENERGIZED AND DEENERGIZED BY RECEIVED ELECTRICAL SIGNALS; AN ARMATURE POSITIONED IN OPERATIVE PROXIMITY WITH SAID SELECTOR MAGNET AND ADAPTED TO BE ATTRACTED BY THE SAID SELECTOR MAGNET WHEN THE SAID SELECTOR MAGNET IS ENERIZED; AN EXTENDING MEMBER AFFIXED TO SAID ARMATURE AND HAVING A PROJECTING PORTION AND A PROJECTING HAMMER PORTION; MOUNTING MEANS MOVABLY MOUNTING SAID EXTENDING MEMBER IN RELATION TO SAID SELECTOR MAGNET SO THAT ATTRACTION OF SAID ARMATURE BY THE SAID SELECTOR MAGNET CAUSES ATTRACTION OF THE SAID EXTENDING MEMBER; A ROTATABLY MOUNTED DRUM POSITIONED IN OPERATIVE PROXIMITY WITH THE PROJECTING PORTION AND PROJECTING HAMMER PORTION OF SAID EXTENDING MEMBER, SAID DRUM HAVING A CYLINDRICAL OUTER SURFACE HAVING A SUBSTANTIALLY SPIRAL PROJECTION EXTENDING THEREFROM AND ADAPTED TO BE STRUCK BY SAID PROJECTING HAMMER PORTION OF SAID EXTENDING MEMBER UPON ABRUPT DEENERGIZATION OF SAID SELECTOR MAGNET FOLLOWING ENERGIZATION OF THE SAID SELECTOR MAGNET; DRIVING MEANS FOR ROTATING SAID DRUM AT A DETERMINED RATE; AND CAM MEANS AFFIXED TO SAID DRUM AND ROTATABLE WITH SAID DRUM AND ADAPTED TO ABUT SAID PROJECTING PORTION OF SAID EXTENDING MEMBER AT DETERMINED TIMES TO MOVE THE SAID EXTENDING MEMBER AND SAID ARMATURE INTO CONTACT WITH SAID SELECTOR MAGNET SO THAT UPON ENERGIZATION OF THE SAID SELECTOR MAGNET THE SAID ARMATURE IS ALREADY IN CONTACT WITH THE SAID SELECTOR MAGNET AND IS NOT MOVED BY THE SAID SELECTOR MAGNET.