US87667A - Sylvania - Google Patents

Description

HARNISH & KING Grist Mill.

Patented March 9, 1869 wzizfmess'as W MM Pholo-Lilhognphar. Washinghn. D. C.

BENJAMIN HARNISH AND ROBERT J. KING, or LANCASTER, PENN- SYLVAN I A.

- 12mm Patent No. 87,667, ,dated Ma/rch 9, 1869.

The Schedule referred to in these Lettetrlatant and making part a: the same.

To whom 41 concern placed as to perform the oificeof a belt-tightener, as

Be it knownthat we, BENJAMIN Hsmusrr, (miller,) shown. and ROBERT J. KING, of Lancaster, in the county of Thus, we do away with all the friction or wear and Lancaster, and State of Pennsylvania, have invented a expense of cog-gearing, and greatly simplify the manew and useful Improvement on Portable Mills; and chinery, and reduce the power required to drive the we do hereby declare that the following is afull, clear, mill; and, as we confidently believe, from the results,

and exact description of the construction and operaafter a full and satisfactory trial, greatly increasing the A tion of the same, reference being. had to the accomamount groundper hour over other mills runningburrs panying drawings, making a part of this specification, of like size.

in whichl The cracking-mill O is of the ordinary pattern, only Figure 1 is a perspective view of a mill with our imthat we can use plain or reversible segments, locking provements iipiace. each other, and secured by a slot and flange-lug, so Figure 2 shows the pulley D of the cracker-spindle, that a worn-out or injured segment or segments can and pulley B of the burrs, with'the belt F driving both. be readily replaced.

Figure 3 shows the sieve-spout V and separating- The manner of grooving may be as novel as we find spout W,'in relation to the eye of the stone and outer it useful. casing and burrs. t Fig. 4 shows the conic grinding-nut, or core.

Figure 4 shows the cracker O, with a cap, X, having We also have a sieve in the spout V, that feeds the an opening to receive cars of corn. cracked grain to the eye E of the mill, or burr, with an G, a bill-hook knife, adjustable on the spindle T, additional spont,W, under it, inclined from both sides with a set-screw, S. or ends of the upper spout, to convey the finely-ground R is a gauge-ring, adjustable by washers interposed. or sifted portions inside of the case, or space that sur- 0, feed-spout. rounds the stone, whence it finds its way out through P, slide-plate over the knife. the discharge-spout M, with the ground materials from The nature of our invention consists in usingacracker the burrs, or grinding-surface.

separate and apartfiromthe burrs,so'combined, however, We find that at least one-tenth is sufficiently fine, as to bedriveu by the action of the same strap or belt as it comes from the cracker, and by thus separating which drives the burr, without additional gear, other it, and preventing it from entering the eye of the stone, than an ordinary tightening-pulley; also, in the diwe increase the yield, and again lessen the amount of minished eye of the burr, so as to greatly increase the power.

grinding-surface, and in sitting the finer particles, as We are aware of the'numerous devices patented for they come from the cracker, so that the. coarser pargrindingmills, and therefore confine our claims to the ticles that require grinding only enter the eye of the mode of driving the cracker and burrs by the same burr, thereby greatly relieving the tendency to clog, strap, and the trough and sieve-arrangement, leading and secure a greater yield at a much less expense of from the cracker to the burrs, and outer space between power. the burr and case.

To enable others skilled in the art to make, and use What we claim as our invention, and desire to seour improvement, a brief description will suffice. cure by Letters Patent, is-- Fig. 1 shows the frame-work and parts in perspective. The combination of the cracking-mill O and grind- A is a sheet-iron or wooden case, surrounding the ing-burrs, as shown, within their case A, the two mills burrs in the usual manner. connected by the compound chute and separatorW V,

We claim no special novelty in the burrs or drivingand driven together by means of the belt F and pulleys pulley, B, attached to the spindle. We, however, do 13 D, all arranged and operated as and for the purpose not hollow out the eye of the burrs in the usual manherein set forth. ner, but leave it nea ly flat, thereby greatly increasing B. HARNISH. the grinding-surface. ROBT. KING.

The pulley B, for the burrs, is one foot in diameter. -Witnesses:

The pulley D, that drives the spindle or grinding-cone WALTER G. EVANS, of the cracker, is, say, three feet in diameter, and so JACOB STAUFFEB.

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