Method of and apparatus for obtaining synchronous movement between two media

摘要: A method and an apparatus are described to enable one of two independently driven strips be stopped for a predetermined period then restarted in synchronism with the other strip which has been running continuously. Stoppage markers provided on first synchronizing markers, interrupted when this is stopped, second strip. An integrator accumulating output sensor, responsive strip, feeds coincidence circuit, also receiving sensor appearance stoppage marker arrests drive latter upon detection restarts that after interruption determined by time constant integrator.