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Full-Text Articles in Materials Science and Engineering
Articles Molded From Papermill Sludge, Bruce A. Haataja, Anders E. Lund
Articles Molded From Papermill Sludge, Bruce A. Haataja, Anders E. Lund
Michigan Tech Patents
An article, such as a pallet having a substantially flat deck member and a plurality of hollow legs projecting from the deck member, is molded as a one-piece unit from a papermill sludge. Dried, comminuted papermill sludge is blended with a fibrous reinforcing material, preferably a cellulosic material such as fibrous bark particles, and a resinous particle board binder, the resulting mixture of furnish is formed into a loosely fitted mat, and the mat is placed between dyes of a mold and press and compressed to substantially the desired shape under temperature and pressure conditions sufficient to bond the sludge …
Fingerling Shear, Tauno B. Kilpela, Bruce A. Haataja
Fingerling Shear, Tauno B. Kilpela, Bruce A. Haataja
Michigan Tech Patents
A fingerling shear for shearing a length of wood in a plane transverse to the grain direction and for splitting the sheared length along the grain direction to form a plurality of fingerlings. The shear includes a planar shearing blade, supported for rotation about a generally vertical axis, the planar shearing blade including an involute cutting edge adapted to engage the elongated piece of wood during rotation of the blade and for shearing off a length of that piece of wood, and a plurality of splitting blades fixed to the lower surface of the planar shearing blade and spaced along …