Patent ID: 7258050

Claim:
A method of cutting an elongate timber web so as to form on each of two opposed ends thereof a tapered end shape including a series of at least four end cuts at successive angles to approximate an arcuate convex end, including the steps of: providing a saw having first and second cutter groups at adjustably spaced apart locations, each cutter group having at least two cutters set to angles so that the cutters of each cutter group correspond to a subset of said series of cuts at a respective end of the web; setting the relative spacing of said first cutter group from the second cutter group to set a desired web length to be cut; performing a first pass of the web relative to both said cutter groups whereby the cutters cut first subsets of the said series of cuts at said respective ends of the web; rotating the web relative to the cutter groups following said first pass whilst maintaining the angles of the cutters; and performing a second pass of the web relative to both said cutter groups to cut second subsets of said series of cuts at said respective ends of the web; whereby said rotation of the web between said passes and the setting of said angles of said cutters in combination cause said first and second subsets of cuts to form on each end of the web said series of at least four cuts at successive angles to approximate an arcuate convex end.