Fig. 110. Parts of Corona grinder.
201. Cherry Stoner. A simple cherry stoner (Fig. 108) consists of a small platform with a rod slightly smaller in diameter than a cherry stone. The cherry is put on an inclined plane so that it rolls over the hole. The cherry usually stays on the rod until this rod is lifted; then it passes between two guards which pushes the cherry off on another incline, where it rolls into a pan (Fig. 108).
There are several makes of stoners, but most of them work on this principle, whether the rod is lifted by hand or moved by a crank.
Fig. 111. Parts of Universal grinder.
Fig. 112. Vegetable slicer.
202. Grinders. Grinders are of two principal types—the roller and the burr. Coffee and other hand mills are of the burr type (Figs. 109 and 110). The food passing between these rough surfaces is ground to a fine powder as one is turned on the other.
203. Choppers or Meat Grinders. Choppers or meat grinders, as they are sometimes called, consist of a spiral channel, thru which the food is pushed along. Knives are placed in the sides of some machines to chop the food as it passes, while in others the knives are only at the outlet. Keep the fingers out of the hopper when the chopper is being operated. Keep the machine clean and dry when not in use (Fig. 111).