UNDER RUNNER PULLEY MILLS.

The above engraving shows our Portable Under Runner Mill, as improved. For grinding wheat, corn, feed, or flouring middlings, they are inferior to none. The runner is balanced upon a steel point or cock-head, projecting into a steel seat. Argument is no longer necessary to prove to intelligent millers the advantages of a cock-head mill over those having the runner stone secured rigid to the spindle. The driving irons in this mill are those shown under head of “Self-tramming Mill Irons.” No mill is perfect without them; with them they are more desirable for wheat grinding than any other under-runner mill.

The bed stone is stationary in the upper part of the husk frame, and is turned over on heavy hinges when necessary to sharpen the burrs. Four stiff rubber springs around bolts, are provided above the bed stone-frame, holding it down while grinding, for the important duty of allowing said bed-stone to yield up in case any hard substance enters between the stones. In this way we prevent the liability of breakage, and overcome the very popular objection to all other mills having the under stone to run. In addition we provide a metallic bush arranged to oil collar of spindle while mill is running. The curb is made of pine staves, and banded with neat iron bands. We furnish either damsel or silent feed as desired. The runner has a cast iron back to prevent any inclination to wear out of balance. The husk is made of hard wood and very strong. Many other points of excellence could be mentioned. The improvements are protected by Letters-Patent.

Diameter of Stones. Diameter of Pulley. Width of belt to drive. Revolutions per minute.

26 inches. 18 inch. 7 inch. 440

30 inches. 20 inch. 8 inch. 400

36 inches. 24 inch. 10 inch. 330