After leaving the shoe it is operated on by the upper cutter head H, then it passes beneath the pressure bar g, which holds the lumber firmly while it is acted on by the matcher c.
"Modern Machine-Shop Practice, Volumes I and II"
Joshua Rose
3178, shows matcher hanger in position.
"Modern Machine-Shop Practice, Volumes I and II"
Joshua Rose
An index at the rear of the machine enables the operator to set the matcher heads to any desired width.
"Modern Machine-Shop Practice, Volumes I and II"
Joshua Rose