Replaceable blade for cable laying plow

摘要

A replaceable blade adapted to be secured in a shank supported in a cable laying plow. The blade has an elongated leading edge and has an elongated trailing spline to be fitted in a slot in the shank. The spline and leading edge of the blade are spaced transversely to the elongated direction. There are extensions at the end of the spline and end of the slot. The elongated portion of the spline is secured to the shank on the plow by split sleeves through respective bores in the shank and spline. The extension on the spline which extends above the blade and is received by the extension in the slot is secured by an additional sleeve to provide additional support of the blade in the shank against forces that would tend to create moments and cause rotation about the elongated portion of the spline in the elongated portion of the shank slot.