Patent ID: 6089135
Filing Date: 2000-07-18
Classification: B23D,B27B,Y10T

Abstract:
Apparatus for sawing a log into segments of a pre-determined length comprising:a) a first horizontal log-feeding means for feeding a log in an end-wise line of travel;b) a second horizontal log-feeding means adapted to receive said log from said first horizontal log-feeding means and lying in a horizontal plane slightly above the horizontal plane of said first horizontal log-feeding means;c) first and second vertically oriented log-feeding means mounted for pivotal movement from a first non-log-engaging position to a second log-engaging position;d) means for pivoting said first and second log-feeding means from said first non-log-engaging position to said second log-engaging position and back to said first non-log-engaging position, and means for driving said means for pivoting;e) a saw movable across the line of travel of said log on said second horizontal log-feeding means;f) means for measuring the distance travelled by said log while on said second horizontal log-feeding means and communicating said measurement to a control means for receiving said measurement signal and communicating control signals to a power means for moving said saw and to said first and second vertically oriented log-feeding means for pivoting said first and second vertically oriented log-feeding means from said first non-log-engaging position to said second log-engaging position and back to said first non-log-engaging position;g) power means for moving said saw in response to a control signal;h) a third horizontal log-feeding means adapted to receive said log from said second horizontal log-feeding means; andi) control means for receiving said measurement signal and communicating control signals to said power means for moving said saw and to said first and second vertically oriented log-feeding means for pivoting said first and second vertically oriented log-feeding means from said first non-log-engaging position to said second log-engaging position and back to said first non-log-engaging position;wherein said first and second vertically oriented log-feeding means are adapted to advance and stop said log in response to said control signal; andwherein said first horizontal log-feeding means advances the log endwise to said second horizontal log-feeding means; said second horizontal log-feeding means raises the log to the horizontal plane slightly above the horizontal plane of said first log-feeding means while advancing the log along the line of travel; said means for measuring the distance travelled by said log measures the advance of the log while raised on said second horizontal log-feeding means and communicates said measurement to said control means; said first and second vertically oriented log-feeding means stop the log at the desired length; said saw cuts the log to produce a forward log segment; and said forward log segment is advanced onto said third horizontal log-feeding means.