Report of the Judges of Implements at Norwich, 
551 
-shredding and two for slicing or fingering ; they are attached 
"to the face of the disc by bolts and are provided with slots, 
thus admitting of adjustment to compensate for wear ; the slicer 
knives can also be readily altered to vary the thickness of cut. 
The disc is mounted vertically on a strong iron spindle, and is 
fixed in a capacious feeding hopper. When the wheel is turned 
in one direction the roots are pulped ; and by simply reversing 
the motion, clean-cut slices or finger-pieces are produced. A 
reversible grating inside the hopper turns over to guide the 
roots in the proper direction for cutting, and the requisite angle 
in the pocket, necessary to hold the roots when being cut, is 
obtained by a self-acting swing-plate attached to the main 
spindle. No alteration of the position or setting of the knives 
is required, this objection in all other machines being entirely 
obviated. The special advantages claimed are, increased 
efficiency, combined with simplicity of construction, enabling 
the manufacturer to offer the machine at a much lower price 
than other machines made for these purposes. Price 4Z. 25. 
These are great advantages in a hand machine, but are not so 
-applicable to machines driven by steam-power. 
Messrs. Jeffery and Blackstone, No. 2i^l, " Corn Grinding 
Mill." — This mill is fitted with vertical stones, the bed or fixed 
stone (d. Fig. 21) being attached to the casing of the machine 
rig. 21. — Section of Messrs. Jeffery and BlacJcstone's Corn Grinding 
Mill', No. 2321. 
