Method and apparatus for excavating trenches

An apparatus for excavating a trench in the ground which comprises an elongated frame means having a forward end and a rearward end;

• at least one support wheel connected to said frame means for allowing said frame means to be moved along the ground to be excavated;
• two laterally spaced apart blades mounted to extend downwardly from said frame means to form two parallel slits in the ground, said blades also being spaced apart longitudinally of said frame means;
• two aligned, rotatable solid discs mounted on said frame means, each said disc being arranged to run directly behind a respective blade and sized such that its peripheral edge will extend below said frame means a distance equal to the distance its associated blade extends below said frame means, said discs rotating with forward movement of said frame means and acting together to grip and upwardly lift the spoiled ground between the two slits formed by said two blades and thereby form a trench;
• and a discharge means mounted on said frame means which includes a portion which extends between said discs to remove the spoiled ground which has been uplifted thereby.