Continuous digging apparatus

Claim 1

A TRENCH EXCAVATING APPARATUS COMPRISING: AN UPRIGHT SUPPORTING BOOM ADAPTED TO BE CARRIED BY A POWERED MOBILE VEHICLE TRAVELLING IN A FORWARD DIRECTION ALONG A SUPPORTING GROUND SURFACE; CHAIN SUPPORT MEANS MOUNTED ON SAID BOOM: FIRST ENDLESS CHAIN MEANS ALIGNED LONGITUDINALLY RELATIVE TO THE INTENDED FORWARD MOVEMENT OF SAID BOOM RELATIVE TO THE SUPPORTING GROUND SURFACE AND MOVABLY GUIDED ON SAID CHAIN SUPPORT MEANS, SAID FIRST ENDLESS CHAIN MEANS INCLUDING AN UPRIGHT FORWARD FLIGHT EXTENDING UPWARDLY FROM THE LOWER END OF SAID BOOM AND LEADING TO A REARWARDLY DIRECTED UPPER FLIGHT; INWARDLY OPEN DIRT CUTTING AND CONVEYING MEANS MOUNTED ON SAID FIRST ENDLESS CHAIN MEANS FOR MOTION RELATIVE TO SAID BOOM CONJOINTLY WITH FIRST CHAIN MEANS AND PROTRUDING OUTWARDLY THEREFROM, SAID DIRT CUTTING AND CONVEYING MEANS BEING DIRECTED UPWARDLY ALONG SAID FORWARD FLIGHT OF SAID FIRST CHAIN MEANS; POWER MEANS ON SAID BOOM OPERATIVELY CONNECTED TO SAID FIRST CHAIN MEANS TO IMPART LONGITUDINAL MOVEMENT THERETO IN A MANNER SUCH AS TO CAUSE THE FORWARD FLIGHT OF SAID FIRST CHAIN MEANS TO MOVE RELATIVE TO SAID BOOM IN AN UPWARD DIRECTION; AND TRANSVERSE BELT MEANS MOUNTED ON SAID BOOM INWARDLY ADJACENT TO SAID DIRT CUTTING AND CONVEYING MEANS ALONG THE FORWARD FLIGHT OF SAID FIRST CHAIN MEANS FOR MOTION CONJOINTLY WITH THE FORWARD FLIGHT OF SAID FIRST CHAIN MEANS, SAID BELT MEANS BEINB OF A WIDTH SUFFICIENT TO SPAN THE INWARDLY OPEN WIDTH OF THE DIRT CUTTING AND CONVEYING MEANS.