US294956A - Grin ding-mill - Google Patents

Description

2 Sheets-S heet 1,

(N9 Model.) 1 J. H. BEAR.

GRINDING MILL.

No. 294,956. Patented Mar. 11, 1884.

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2 Sheets-Sheet 2. J. H. BEAR. GRINDING MILL.

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No. 2 94.956. Patented Mar. 11,1884.

UNITED STATES PATENT OTTTCTT.

JOHN H. BEAR, OF \VEST MANCHESTER, PENNSYLVANIA.

GRlNDiNG-MILL.

SPECIFICATION forming part of Letters Patent No. 294,956, dated March 11, 1884.

Application filed December 12, 1883.

T0 (LZZ whom it may concern:

Beit known that 1, JOHN H. BEAR, a citizen of the United States, residing at \Vest Manchester, in the county of York and State of Pennsylvania, have invented anew and useful Improvement in Grinding-Mills, of which the following is a full, clear, and exact description, reference-being had to the accompanying drawmgs.

My invention relates to that class of grimling-mills in which the spindles are arranged horizontally, so that runningstones or burrs will revolve in vertical planes 5 and it consists in the novel construction and combinations of parts, as will behereinafter more fully set forth and claimed.

In the drawings, in which similar letters of reference indicate corresponding parts,.Figure l is a plan view of my improved grinding mill. Fig. 2 is a vertical longitudinal section of the same on line a: a: of Fig. 1. 8 is a cross-section on line y y of Fig. 1. Fig. 4 is a detail perspective View of the hopper; Fig. 5, a detail perspective view of the curved plates B and D and plate 0.

A represents the bed or frame of the machine, upon which are mounted the parts of my invention. I

B B represent bearings, each provided with a cover or top, O.

To the inside of one end of the frame A is secured, by any suitable means, a wedgeshaped plate, 0, having upwardly-projecting arms 6 6, one on each side of the sleeve M.

This wedge-shaped plate 0" is placed under the sleeve M, and, in conjunction with the bifurcated wedge G, regulates the distance between the stones L L. This wedge C is adjusted' by means of a threaded rod, t, having a bearing in frame A.

On the portion A of the frame A is a semicircular plate, B, having flange d. On the front portion of plate B is a flange, d, and where the angle is made between the semicircular plate B and the portion D, I form on the outside of plate D guides'e e, for the reception of a plate, 6, having a square edge and depressions, in which the ears of corn. rest as they are fed to the knives. It will be readily seen that this plate 6, in conjunction with the revolving knives 7i, will quickly and ef- (No model.)

fectively cut or chop the ears of corn as they are fed inward through the guides f Resting upon the flange d and portion D, and supported by any suitable means, is hopper F, provided with a convex bottom, in which is placed a slide or valve, f, for the purpose of regulating the flow of shelled corn or other grain to the burrs L L by means of the spiral flange m on the hollow shaft M. This hopper hasalso formed upon its lower portion guides f f the object of which is to feed the unshelled ears of corn to theknives. G is ashaft supported in the bearingB and the hollow shaft M, and adapted to be revolved by the application of any well-known power. On the shaft G, and under the convex plate of the hopper F, is secured, by a key or other well-known means, an annular head, 9, con nected to the head by means of beveled cross-pieces having outwardly-projecting prongs h, which flt in openings formed in the stone L, and cause it to revolve by means of the annular head g and the beveled connecting-pieces 9.

To the sides of the cross-pieces g, and secured by any well-known means, are the knives h, for cutting or chopping up the cars of corn as they are fed between the guides f to the knives.

Upon the periphery of the head 9, I form a flange, L, and an annular groove, *5, whereby it is adapted to revolve upon the flange d, formed on the plate B.

Loosely fitting the shaft G is a hollow spindle or sleeve, M, provided for a portion of its length with a spiral flange, m, for feeding the ear-corn as it is cut to the stones L L. The stone or burr L is rigidly held upon the hollow shaft M by any well-known means, and as the burr or stoneL is revolved in the direction of the arrow the stone or burr L will be caused Patent, is-

1. In a grinding-mill, the plate B, annular heads 9 g, the connecting-pieces g, and knives It, in combination with the feeding devices, shaft G, sleeve M, and burrs L L, substantially as and for the purpose set forth.

2. The shaft G and annular heads 9 g, in combination with beveled connecting-pieces g, knives 71 plate 0, guides e, and the plates B and 1), all constructed to operate substantially as set forth.

3. The sleeve M, having a spiral flange m,

formed on one end in combination with ho l per F, having gmdesf f curved plates 13 with projections c a formed thereon, in 00111- I bination with the sleeve )I, the shaft G, the adjustable bifurcated wedge C, and the vertical burrs L L, substantially as and for the pur 2o pose set forth.

JOHX H4 BEAR.

\Vitnesses:

H. H. J ACOBS, 13. F. Mvnns.

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