US247882A - Edwaed e - Google Patents

Description

(No Model.)-

B. R. BURNS.

\HOMI-NYMILL.

vPatented Oct. 4,1881.

nlmwmnuml'nmulmlmzcm UNITED STATES PATENT OFF E.

EDWARD R. BURNS, OF INDIANAPOLIS, INDIANA, ASSlGNOR TO HIMSELF AND SINKER DAVIS 81; 00., OF SAME PLACE.

HOMlNY-MILL.

SPECIFICATION forming part of Letters Patent No. 247,882, dated October 4, 1881.

Application filed March 8, 1881. (No model.)

To all whom it may concern:

Be it known that I, EDWARD R'. BURNS, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Improvement in Hominy-Mills, of which the following is a specification.

My invention relates to improvements in hominy-mills in which beater-knives of a peculiar construction are attached to lugs formed on longitudinal plates, said plates being attached to a wooden cylinder mounted on ametallic shaft, all of which operate in conjunction with a cylindrical shell having a hopper above, a discharge-door at one side of the bottom and a screen on the other side of the bottom of the cylindrical shell; and the objectsof myinvention are, first, toprovide a beater-knife with a shank below for bolting it to 'the lugs of the a hopper above, a removable screen at one side,

and a discharge-door at the other side; and, fourth, to provide facilities for regulating the feed and operating thedischarge-door. These objects I accomplish by the mechanism illustrated in the accompauyin g drawings, in which-- 7 Figure 1 represents a front elevation of the mill. Fig.2 is an end view with the endofthe cylindrical shell partiallybroken awayto show the beater-knives inside and thefeedingdevice in hopper. Fig. 3 is atop view of a portion of the cylindrical shell, showing the feed-hopper and cut-off slide and its operating mechanism. Fig. 4. is a side view of the revolving cylinder, showing the beater-knives attached to their respective cross-lugs on the metallic longitudinal bars,which are, in turn,attached to the wooden cylinder. Fig.5 is an end view of Fig. 4. Fig. 6 is a plan view of one of the beater-knives with shank for bolting it to the lugs of the longitudinal bars and diverging cutting-edges; and Fig. 7 is a perspective view of a portion of one of the longitudinal bars, showing the construction of the cross-lugs. to which the beater-knives are bolted.

Arepresents the cylindrical shell of the mill,

which has closed ends and is securely fastened by bolts at each end to the legs J J. The upper central portion of the legs J J are provided with boxes D D,in which the revolving cylindershaft 0 operates. The upper rear quarter of the cylindrical shell A is furnished with a hopper,B,the floor of which is inclined,

as shown in Fig. 2, and provided with a cutoff slide,L,which .is operated to increase or diminish the amount of corn fed to the shell A by the rod 0 and lever F. The rod 6 has'one end secured in the lug O of the slide L, and its other end attached the rear end of the lever F, and the lever F is pivoted to 'the lug E, as shown. in Figs. 1, 2, and 3. y

The lowerrear quarter ofthecylindrical shell A is provided with a detachable screen,.M, which extends longitudinally thelength of the shell. The lower front quarter of the cylindrical shellAis provided with a door, K,which also extends the whole length of the shell. This door is provided with hinge-lugs m m, which are pivoted to the hinge-lugs n n on the shell 7 A, as shown in Fig. 1.

The tie-rods G G extend from end to end of the machine and pass through both legs J J, where they are made fast by their respective nuts. shell A, is supported in lugs a a, and one end of the link b is pivoted on said rod between said lugs. This link 1) extends downward, and its other end is pivoted to theleverl at :v. The rear end of the lever I is also pivoted to the 85 fork of the lug H, which; is cast on or attached to the door K. The lever I and linkb are used for opening or closing the door K, as required.

The shaft G is mounted in the boxes D Dof the frame-legs J J, andis provided with a cyl- 9:) inder, of wood, N, which extends the whole length of the shell on the inside. This cylinder has four longitudinal flat faces or grooves, in which the longitudinal bars 0 are secured by screws 11, passing through the holes o. 5

These longitudinal bars 0 have at regular dis tances apart lugs f. These lugs f arearranged, at right angles to the bar, and each lug is provided on one side with arib, p, for supporting the rear edge of the beater-knives. Each lug f is provided with a hole, 8, for the bolts r to pass through in securing the beater-knives to the lugs.

The beater-knives are flat plates of steel cut The front rod, G, near the center of the to a pattern similar to that shown in Fig. 6- that is, the base of the knife has a shank, P, with a hole, 1", for the bolt 1' to be inserted in for securing the knife to the lugs f.

The knife part proper is shown at P, the on tting-edges of which are not ground to a knifeedge, but are left perfectly sq uaro, as at w w. These square cutting-edges diverge from the shank P to the periphery ofthe knife, with an angle similar to that shown in Fig.6. The objeet of making the beater-knives of this shape is topreventtheknife-edges from throwing the corn against the inner walls of the shell and to draw the corn toward the revolving eylinderN.

The diverging edgesw w of thebeater-knives, by being flat, present two sharp corners to act on the corn, and as these corners become rounded by wear they are simply ground again perfectly squarethat is, the face of the knife is ground at right angles to the sides, but still diverges from the shank to the periphery. When one edge of the beater-knives are worn to near the center of the knives, or worn so much as to destroy the utility of the diverging edge at that side, then the bolts 1' are removed and the knife reversed, thus presenting a new diverging edge of the knite't'or further use.

It will be observed that it the cylinder N revolves in the direction of the arrow y, Fig. 5, the beater-knives are strengthened by the backing-ribs on thelugs f, against which one edge of the shank of the beater-knives abuts when bolted fast to said lugs.

What I claim as new, and desire to secure by Letters Patent, is-- 1. In combination with a beater-knife with shank P, having a hole, 1", and the head P, with straight cutting-edges ww, diverging from the base of the shank P to its periphery, the

longitudinal bar 0, with cross-lugsf, said lugs having a projectingrib, p, atone side, and hole 8, for the bolt 1', to be inserted, substantially as shown and described.

2. In combination with a beater-knife with shank P, havingabolt-hole, r, and a head,P, with straightcntting-edges w w, diverging from the shank to the periphery of the knife, the longitudinal bar 0, with lugsf, having ribsp and holes 8 for the bolts 1', the wooden cylinder N, and shaft (3, all substantially as shown and described.

3. In combination with the revolving cylinder N, having bars 0, with lugsf, ribs p, and holes 8, and the beater-knives P P, with hole 1* in the shank, and diverging cutting-edgesw w, the cylindrical shell A, with hopper B, cutofl' slide L, and lever F, the screen M, and door K, allconstructed and arranged to operate substantially as shown and described.

In testimony whereof Ihave signed my name to this specification in the presence of two subscribing witnesses.

EDWARD R. BURNS.

Witnesses:

G. H. BENNETT, E. O. FRINK.

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