Apparatus for plotting seismic data

Claim 1

AN APPARATUS FOR PRODUCING A TIME SQUARED DISTANCE SQUARED DISPLAY OF SEISMIC DATA FROM WATER-COVERED AREAS, SAID APPARATUS COMPRISING: A SOURCE OF ACOUSTICAL IMPULSES DISPOSED ON A VESSEL; A DETECTOR CAPABLE OF RECEIVING ACOUSTICAL IMPULSES AND CONVERTING THEM TO RELATED ELECTRICAL SIGNALS; AN ANCHORING MEANS FASTENED TO SAID DETECTOR TO MAINTAIN SAID DETECTOR IN A FIXED LOCATION; A RECORDING MEANS DISPOSED ON SAID VESSEL; CABLE MEANS CONNECTED TO SAID DETECTOR FOR COUPLING SAID DETECTOR TO SAID RECORDING SYSTEM AS SAID VESSEL IS MOVED AWAY FROM SAID ANCHORED DETECTOR; A CIRCUIT MEANS DISPOSED ON SAID VESSEL TO GENERATE AN OUTPUT SIGNAL THAT IS PROPORTIONAL TO THE SQUARE OF ELAPSED TIME FROM THE GENERATION OF AN ACOUSTICAL IMPULSE; AN OSCILLOSCOPE, SAID CIRCUIT MEANS BEING COUPLED TO THE SWEEP CIRCUIT OF SAID OSCILLOSCOPE; MEASURING MEAS DISPOSED ON THE VESSEL TO MEASURE AND THEN SQUARE THE DISTANCE BETWEEN SAID SOURCE AND SAID ANCHORED DETECTOR, SAID MEASURING MEANS SUPPLYING AN OUTPUT SIGNAL PROPORTIONAL TO THE SQUARED DISTANCE; SAID MEASURING MEANS BEING COUPLED TO THE RECORD ADVANCING MEANS OF SAID RECORDING SYSTEM AND SAID RECORDING SYSTEM BEING DISPOSED TO RECORD THE EVENTS DISPLAYED ON SAID OSCILLOSCOPE.