Portable log debarking apparatus

Portable log debarking machine

Portable log splitter

Portable motor chain saw

Portable tree girdling machines

Portable wood splitter

Power driven de-barking attachment

Power infeed for chipper

Power saw log peeling attachment

Power tree chipper and sprayer

Powered log splitter

Pressure bar for veneer cutting

Primary and counter knife assembly for use in wood chipper

Procedure and apparatus for barking timber

Procedure and apparatus for controlling a barking process

Procedure and apparatus for preparing hot groundwood

Procedure and apparatus for replacing a knife in a disc chipper

Procedure and apparatus for working a tree trunk by chipping

Procedure and device for replacing the knives of a disc chipper

Procedure for prolonging tool life in wood cutting