US294735A - Grinding-mill - Google Patents

Description

(No Model.) i Y 2 Sheets-fSheet 1. D. HESS.

GRINDING MILL.

No. 294,735. Patented Mm. 4, 1884.

WITNESSES N. PETERS. memmmwer. Mlm-51m. n. c.

(No Model.) 2 sheets-sheet -2.

D. HESS.

GRINDING MILL. No. 294,735. Patmeed Mar. 4, 1884.

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@Niven STATES.

ArnNr Prien.

DANIEL I-IESS, OF ATLANTA, GEORGIA.

SPECIFICIATION` forming part of Letters Patent No. 294,735, dated March 4, 1884.

l Appiiminn mea April 2o, 1883. (No model.;

.To all whom it may concern;

Be it known that I, DANIEL Huss, a' citizen of the United States, residing at Atlanta, in the county of Fulton and State'of G eorgia, have invented certain new and useful Improvements in Grindi1ig-l\1Iil ls, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention has relation to vertical-disk grinding-mills; and its object is to provide a mill for grinding all kinds of grain and the usual feed for stock th at will besimplean d cheap in construction, effective in operation, and possess littleliability to derangement of parts, and that will not allow the burrs to get out of true or grind unevenly; and to these ends the novelty consists in the construction ofthe saine, as will be hereinafter more fully described, and particularly pointed out in the cla-im.

In the accompanying drawings the saine letters of reference indicate the same or like parts of the invention.

Figure 1 is a sectional side elevation of my improved mill. Fig. 2 is a detail edge view, partly in section, of the devices for vibrating the feed-pan; and Fig. 3 is a side elevation of the saine. V

A is the bed-plate, which is provided with brackets a c. In the bracket c is abearing, b, for the shaft B,which, at its outer end, is provided with 'a driving-pulley, I/,while the bracket a is provided with alongitudinal groove, b', in which is mounted the tongued box @,which forms a bearing for that end of the shaft B. This end of the shaft has recesses c, into which fit collars c inthe box C, so that as the'boxis longitudinally Aadjusted it will carry the shaft with it.`

D is a screw-rod rigidly secured to the end d of the box C, and it extends through the arm.

d of the bracket a', and the said screw-rod is provided with two adj usting-nuts, c c', located one on each side of the arm d. It will thus be seen that by this construction of the parts the box Gand shaft B may readily be adj usted longitudinally, and when this is done they maybe locked in position by screwing the nuts hard against the arin d.

Eis a thrust bearing block, against which the end of the shaft ab'uts and revolves, andv when worn may be replaced without changing the box C.

F is the feed-box, which is provided with a small opening, j`,'through which the shaft B passes, and with alarger one, f, through which the grain is fed by the externally-screw-thread ed collar K into the mill. This feed-box is suitablymountedupon the bed-plate, andto one side thereof is secured the stationary burr G.

The conical crushing-burr H, which operates in connection with a similarly-shaped shell,H-, inathe burr G, is secured tothe shaft B by setscrews 71, and the grinding-disk I is provided with a tapering supporting-shell, J, formed integral therewith, and extending rearward, de-

. creasing in size until its endi encompasses the shaft B, where it is secured by the set-screw i.

l is a collar rigidly secured by a set-scre.v, 7L', tothe conical burr H, and its -diameter is less than the central opening in the grindingdisk I, so that while it ordinarily keeps the disk I in a central position with reference to the shaft B, at the saine time there is suflicient play between the collar I and disk I to allow the latter to come into intimate or true relation to the face of the burr G. It will thus be seen that by this construction the face of the grind'- ing-disk I will adjust itself to the face of the stationary burr G, and consequently that their grinding-surfaces will bear evenly all around and produce a uniform meal.

K is a collar secured upon the shaft B in the feed-box, and its periphery is provided with a coarse serew-thread, c,which feeds the grain to the burrs. The grain from the feed-boXis'earried to the conical crushing-burr H and shell II', and thence between the stationary grinder G and -rotating disk I,whence itpasses into the chamber L and into the meal-box through the opening Z. By adjusting the box' C'by means of the screw-rod D and nuts c c', the shaft B is adjusted, and as the conical grinder Hand disk I are secured to it, they are adjusted with reference to the burr G and shell H.

M M is a removable boxfraine .secured to the-bed-plate, and the upper end of this frame has the usual hopper, m, and slide N, which regulates the amount of grain passing through the opening n. This frame is provided with slots m mjwhich allow it'to set down over the shaft B and rest upon the bedplate A, and it is secured thereto by hooks and staples. (Not shown.)

O is ashaking-pan,into which the grain drops IOO from the hopper ym, and the degree of its inclination may be adjusted by turning the stud n, around which passes the heit-l), attached to the rod j), Seenredto the discharge end oisaid pan.

l is a lever pivoted to theinsideof the frame M at a', its lower end, r, resting hy gravity against the eccentric S on the shalt ,whi1eiis upper end comes in Contact with the rod p on the pan. Theeeeentrie, as it rotates, oscillates the lever, and it in turn imparts a Yibratory motion to the pamwhieh lwhakes the grain into `the feed-hex l".

I make no claim to the devices herein Shown and described other ihanaS specliealiy claimed, but prefer to use the features shown and described, hut not claimed, in connection with the parts in which my invention resides.

That claim is- The feed-box l?, the stationary burr G, and 2o conical crushing-shell ll', in combination with the driving-shalt l, the conical burr ll, collar lf, grinding-disk l, provided with thetapering supporting-shell .Land set-screw `,as set forth.

ln testimony whereof I at'iix my Signatn re in 25

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