Retrofit chain sickle cutter

A chain assembly for a cutting and mowing apparatus, comprising a plurality of chain members, a plurality of knife members, and a plurality of link members, wherein

• (a) each of said chain members is flat, elongated and substantially rectangular in shape with an orifice therethrough adjacent each end thereof,
• (b) each of said knife members is flat and is shaped in the form of a substantially triangular portion with two sharp cutting edges and a substantially rectangular portion, said rectangular portion being identical in shape to said chain member and having an orifice therethrough adjacent each end thereof for alignment with said orifices in one of said chain members,
• (c) each of said link members is substantially rectangular in shape and has an orifice therethrough adjacent each end thereof,
• (d) said chain members and knife members are positioned in pairs each consisting of a chain member and a knife member parallel to one another and spaced from one another with their respective orifices in alignment,
• (e) adjacent pairs of said chain and knife members are linked to one another by one of said link members with one of its orifices in alignment with said orifices of one of said pairs and with the other of its said orifices in alignment with said orifices of an adjacent one of said pairs, and
• (f) each of said knife members, including at least one slot therethrough between said triangular portion and said rectangular portion, whereby said triangular portion may be broken away from said rectangular portion.