Separable cable tube for ditching and cable laying blades

Claim 1

IN A SEPARABLE CABLE TUBE STRUCTURE FOR DITCHING AND CABLE LAYING BLADES, A CABLE CHANNEL DEFINED BY PARALLEL RECTILINEAR WALLS AFFIXED DOWNWARDLY ALONG THE REAR EDGE OF THE BLADE, CENTERED THEREON AND SPACED INWARDLY FROM THE LATERAL EDGES THEREOF, A CURVED HEEL AFFIXED TO THE LOWER EXTREMITY OF THE BLADE AND EXTENDING REARWARDLY THEREFROM, STUDS EXTENDING OUTWARDLY FROM THE LATERAL EDGES OF SAID HEEL, A REMOVABLE CABLE TUBE CASING OF RECTANGULAR CHANNEL SHAPE FITTING OVER SAID BLADE CHANNEL MEMBER AND CLOSELY ENGAGING THE WALLS THEREOF, PAIRED SLOTS IN THE LOWER, LATERAL WALLS OF SAID CABLE TUBE CASING FITTING OVER SAID STUDS ON SAID HEEL, PARALLEL STRAPS AFFIXED TO THE SIDES OF SAID BLADE AT ITS UPPER EXTREMITY AND EXTENDING REARWARDLY THEREFROM CLOSELY ENGAGING THE SIDE WALLS OF SAID REMOVABLE CABLE CASING, LUGS ON SAID CABLE CASING, A PIVOT PIN EXTENDING BETWEEN SAID LUGS, LEVER MEANS PROVIDED WITH A DEPENDING HEAD AT ITS FORWARD EXTREMITY BORED TO RECEIVE SAID PIVOT PIN, RETAINING PIN MEANS PASSING THROUGH THE BORED EXTREMITIES OF SAID STRAPS AND THROUGH A LATERAL BORE IN THE LOWER EXTREMITY OF SAID LEVER HEAD BELOW SAID PIVOT PIN WHEREBY SAID REMOVABLE CABLE TUBE CASING WILL BE CLAMPED TIGHTLY OVER SAID BLADE CHANNEL WHEN SAID LEVER IS FORCED THROUGH AN UPWARD ARC ABOUT SAID RETAINING PIN AND WILL BE FREED THEREFROM BY A DOWNWARD MOVEMENT OF SAID LEVER.