Tape movement indication means and signalling device

Abstract

Abstract AN OPTICAL SENSING SYSTEM FOR A RECORDER-TRANSCRIBER DETECTS THE PASSING OF EVENLY SPACED HOLES IN A RECORDING TAPE AND TRANSMITS SIGNALS TO "UP" AND "DOWN" STEPPING MOTORS WHICH DRIVE AN INDICATOR THROUGH A DIFFERNTIAL DRIVE ASSEMBLY. DICTATE-FORWARD AND REVERSE CONTROLS AND SECRETARY-FORWARD AND REVERSE CONTROLS ARE PROVIDED AND ARE COUPLED TO THE OPTICAL SENSING MEANS IN A MANNER SUCH THAT PASSING OF THE HOLE IN THE SECRETARY-FORWARD OR DICTATE-REVERSE DIRECTIONS WILL ENERGIZE THE "DOWN" STEPPING MOTOR AND PASSING OF THE HOLES IN THE SECRETARY-REVERSE OR DICTATE-FORWARD DIRECTION WILL ENERGIZE THE "UP" STEPPING MOTOR. A SIGNALLING DEVICE FOR INDICATING A PERCENT OF CAPACITY OF A RECORDER-TRANSCRIBER INCLUDES A CAM ACTUATED SIGNAL PRODUCING SWITCH IN WHICH THE CAM IS DRIVEN BY A PIN ATTACHED TO A CAM DRIVER THAT IS COUPLED TO THE DIFFERNTIAL ASSEMBLY. THE PIN MAY BE SEATED IN SLOTS OF VARIOUS LENGTHS. EACH SLOT CORRESPONDS TO A DIFFERENT QUANTITY RECORDER-TRANSCRIBER CAPACITY AND PROVIDES A LOST-MOTION CONNECTION WHEREIN THE SIGNAL GENERATED IS TERMINATED ONLY AFTER THE PIN HAS TRAVERSED THE SLOT.

Inventors

• 👤 W Nye
• 👤 S Jones

Bibliographic Details