26 FEBRUARY 1859, Page 12

Palmer's new patent chaff cutter, to be seen at Mr.

Wise's offices in Fleet Street, is a great improvement upon the old form in which the cutting knives are attached to the arms of the flywheel,—a bad arrange- ment, causing a continual variation of power from the beginning to the end of the cut. In Palmer's chaff-cutter the knives are'straightedged, and are fixed by shoulder pieces to the flywheel shaft, so that their edges are

—.. paralle]* its axis, whilst the feeding-box is set at right angles to it. A e0iir serves as a stationary cutter, and being slightly inclined, it acts with the blades in the manner of shears. A well contrived feeding appa- ratus carries forward the material to be cut at any required velocity. The action of the knives is always equable, and the workman is aided by the whole leverage of the flywheel. His work is, therefore, done with great ease and at a very rapid rate.