Sonar device

Claim 1

A SONOR SYSTEM OF THE CHARACTER DESCRIBED ADAPTED FOR INSTALLATION IN A SHIP OR THE LIKE FOR MEASURING THE DEPTH OF A BODY OF WATER BELOW THE SHIP OR THE LIKE COMPRISING, PULSE GENERATING MEANS INCLUDING A TRANSDUCER ADAPTED TO BE MOUNTED ON THE BOTTOM OF THE SHIP FOR GENERATING A SOUND WAVE FOR PASSAGE FROM A TRANSMITTER TO THE BOTTOM OF THE BODY OF WATER TO BE REFLECTED THEREFROM, A GATE WHICH IS ENERGIZED TO A FIRST NON-CONDUCTING STATE SIMULTANEOUSLY WITH THE GENERATION OF SAID SOUND WAVE, A TIME BASE PULSE GENERATOR CONNECTED TO SAID GATE FOR GENERATING A SERIES OF PULSES OF PREDETERMINED LENGTH WHEN SAID GATE IS IN SAID FIRST STATE, SAID PULSES BEING CORRELATED WITH THE SPEED WITH WHICH SAID SOUND WAVE PASSES THROUGH THE WATER, FIRST AND SECOND RING COUNTER TUBES EACH HAVING TEN OUTPUTS SO THAT PULSES SUPPLIED THERETO SEQUENTIALLY ADVANCE SAID RING COUNTERS AND CURRENT FLOW IS SEQUENTIALLY PRODUCED IN SAID OUTPUTS, FIRST AND SECOND DISPLAY TUBES EACH HAVING TEN CATHODES SHAPED IN THE FORM OF NUMBERS 0-9, SAID CATHODES OF SAID FIRST AND SECOND DISPLAY TUBES BEING CONNECTED TO ONE OF SAID OUTPUTS OF SAID FIRST AND SECOND RING COUNTER TUBES, RESPECTIVELY, SAID CATHODES ADAPTED TO GLOW WHEN CURRENT FLOWS THERETHROUGH THUS PRESENTING A VISUAL DISPLAY, SAID FIRST RING COUNTER TUBE BEING CONNECTED TO SAID PULSE GENERATOR AND SAID SECOND RING COUNTER TUBE BEING CONNECTED TO THE NUMBER ZERO OUTPUT OF SAID FIRST RING COUNTER SO THAT SAID CATHODES DISPLAY IN UNITS AND TENS THE PULSES FROM SAID GENERATOR, RECEIVER MEANS FOR RECEIVING AND AMPLIFYING THE WAVE REFLECTED FROM THE BOTTOM OF THE BODY OF WATER AND BEING CONNECTED TO SAID GATE TO CHANGE SAID GATE TO A SECOND STATE WHEN A SIGNAL IS RECEIVED THEREBY TERMINATING OPERATION OF SAID TIME BASE PULSE GENERATOR SO THAT THE DEPTH OF WATER CAN BE EASILY READ ON SAID CATHODES OF SAID DIGITAL DISPLAY TUBES, MEANS CONNECTED TO SAID GATE FOR CAUSING SAID DISPLAY TUBES TO BE INOPERATIVE WHEN SAID GATE IS IN SAID FIRST STATE TO ELIMINATE SCRAMBLING OF SAID CATHODES, AND MEANS CONNECTING SAID PULSE GENERATING MEANS AND SAID RING COUNTER TUBES FOR RESETTING SAID RING COUNTER TUBE EACH TIME A SOUND WAVE IS GENERATED.