Improved efficiency screen plate for screening pulp

Improved mechanical strainer for fibrous suspensions

Improved recovery of fine fibers from suspensions containing...

Improvements in taper refiner for the defibering of wood...

Improvements on hatters' irons

Inclined or vertical rotating grooved-rollers for separating...

Inclined screen filter

Infeed disc for disc-type refiners

Infeed tube for disc refiners

Inlets for double disc refiner

Isolation of sclereids

Junk separator for, and in combination with, a pulp slurry...

Kraft paper and method for making the same

Loading box for a former of a paper or board machine

Low speed low intensity chip refining

Manufacture of screen plate with screen slots obtained by...

Means for filtering and fractionation of suspensions...

Mechanical pulp fractionation with a spray disk filter

Mechanical pulping refiner plate having curved refining bars...

Mechanically cleanable screen