Cable laying plow with brace attachment

Claim 1

A CABLE LAYING PLOW FOR MOVEMENT THROUGH THE GROUND, WHICH PLOW IS ATTACHED TO A PRIME MOVER, AND WHICH PLOW COMPRISES: (A) A MOUNTING BRACKET, (1) SAID MOUNTING BRACKET HAVING UPPER AND LOWER HORIZONTAL HOLES FORMED THEREIN, WHICH HOLES LIE IN A VERTICAL PLANE WHICH IS PERPENDICULAR TO THE LINE OF TRAVEL, (B) PAIRS OF REARWARDLY EXTENDING FRAME MEANS, ONE ARRANGED ABOVE THE OTHER, (1) HORIZONTAL HOLES FORMED IN EACH FRAME MEANS NEAR EACH END THEREOF, (2) SAID HORIZONTAL HOLES IN THE FORWARD END OF SAID RESPECTIVE FRAME MEANS ADAPTED TO REGISTER WITH THE RESPECTIVE HORIZONTAL HOLES IN SAID MOUNTING BRACKET, (3) HORIZONTAL PIVOT MEANS PIVOTALLY CONNECTING SAID RESPECTIVE FRAME MEANS AND SAID MOUNTING BRACKET, (C) HYDRAULIC POWER MEANS INTERCONNECTING SAID MOUNTING BRACKET AND ONE OF SAID FRAME MEANS PIVOTALLY MOUNTED ON SAID BRACKET TO MOVE SAID FRAME MEANS RELATIVE TO SAID MOUNTING BRACKET, (D) A PLOW SHANK, (1) SAID PLOW SHANK HAVING TRANSVERSE, HORIZONTAL HOLES FORMED THERETHROUGH, PARALLEL TO THE HORIZONTAL HOLES IN SAID MOUNTING BRACKET, (2) PIVOT PINS PASSING THROUGH SAID HORIZONTAL HOLES IN THE REAR OF THE RESPECTIVE FRAME MEANS AND THROUGH HORIZONTAL HOLES IN SAID PLOW SHANK SO THAT THE AXIS OF THE RESPECTIVE PIVOT PINS IN THE REAR OF SAID FRAME MEANS AND IN SAID PLOW SHANK ARE THE SAME DISTANCE APART AS THE AXES OF SAID SPACED APART, HORIZONTAL HOLES IN SAID MOUNTING BRACKET, (3) SAID FRAME MEANS ADAPTED TO PIVOT ABOUT SAID HORIZONTAL AXES ON SAID MOUNTING BRACKET AND ON SAID PLOW SHANK TO RAISE SAID PLOW SHANK IN THE SAME UPRIGHT POSITION BY SAID FRAME MEANS, WHICH FORM A PARALLELOGRAM, (E) A PAIR OF UPRIGHT PIVOT PINS INTERCONNECTING PORTIONS OF EACH FRAME MEANS INTERMEDIATE THE LENGTH OF THE RESPECTIVE FRAME MEANS, (1) THE AXES OF ONE PAIR OF SAID UPRIGHT PIVOT PINS IN SAID UPPER FRAME MEANS AND IN SAID LOWER FRAME MEANS BEING SPACED INTERMEDIATE THE LENGTH OF SAID FRAME MEANS AND BEING EQUIDISTANT FROM THE RESPECTIVE HORIZONTAL AXES OF HOLES IN SAID MOUNTING BRACKET,