Abstract: The following specification describes apparatus for successively applying magnetic patches on a tape to successive passbooks. Each passbook is moved in sequence to engage a switch and is then stopped. The switch operates a solenoid, which engages a roller with the passbook and disengages the stop. Thereafter, a metered pulse is applied to the motor of a rotary drive to move the passbook and tape through the same distance and one patch is separated from the tape and applied to the passbook by the solenoid engaged roller. As the tape moves under control of the metered pulse, a succeeding patch on the tape is sensed by a photocell to maintain the motor and rotary drive operated. The drive continues to advance the tape and when the succeeding patch is no longer sensed by the photocell, it provides a signal to deenergize the motor and stop the tape. The succeeding patch is thus accurately positioned for application to the next passbook operating the switch.