Control system for separate as well as simultaneous operation of remote working elements

Claim 1

A DECODER FOR TRANSLATING CODED INFORMATION IN THE FORM OF FREQUENCY SIGNALS, SAID DECODER COMPRISING A SOLENOID COIL, RECEIVER MEANS CONNECTED WITH SAID SOLENOID COIL ADAPTED TO RECEIVE AND IMPRESS SAID FREQUENCY SIGNALS ON SAID COIL, FIRST AND SECOND VIBRATORY REEDS POSITIONED FOR INTERACTION WITH THE MAGNETIC FIELD OF SAID COIL, SAID FIRST AND SECOND REEDS BEING TUNED TO VIBRATE AT DIFFERENT FIRST AND SECOND SIGNAL FREQUENCIES, FIRST AND SECOND WORK ELEMENTS CORRESPONDING TO SAID FIRST AND SECOND REEDS, A FIRST CIRCUIT COMPLETED BY SAID FIRST REED UPON VIBRATION THEREOF FOR OPERATING THE WORK ELEMENT CORRESPONDING TO SAID FIRST REED, A SECOND CIRCUIT COMPLETED BY SAID SECOND REED UPON VIBRATION THEREOF FOR OPERATING SAID SECOND WORK ELEMENT, A THIRD VIBRATORY REED POSITIONED FOR INTERACTION WITH THE MAGNETIC FIELD OF SAID COIL AND TUNED TO VIBRATE IN RESPONSE TO A THIRD FREQENCY SIGNALS, DIFFERENT THAN SAID FIRST AND SECOND FREQUENCY SIGNALS, AND MEANS CONNECTED BETWEEN SAID FIRST AND SECOND CIRCUITS AND RESPONSIVE TO VIBRATION OF SAID THIRD REED TO SIMULTANEOUSLY COMPLETE SAID FIRST AND SECOND CIRCUITS AND THEREBY SIMULTANEOUSLY OPERATE SAID FIRST AND SECOND WORK ELEMENTS.