The Krajewski crusher has two such E steel rolls, with V-shaped corrugations extending longi tudinally across them.
The Krajewski crusher was invented some years ago by a Polish engineer resident in Cuba, who took out a patent for it and gave it his name.
The increase in the output for a given time obtained by the use of the Krajewski crusher has been estimated at 20 to 25% and varies with the quality of the canes; while the yield of juice or extraction is increased by I or 2%.
See Ludwik Jenike, Stephen Czarniecki (Pol.) (Warsaw, 1891); Michal Dymitr Krajewski, History of Stephen Czarniecki (Pol.), (Cracow, 1859).