US1282156A - Lip-plate for grinders. - Google Patents

Description

M. F. WILLIAMS.. ur um mar mimosas. APPLICATIUN FILED-MAY 10. |9418.

` Patent/m oef. 22,1913@` heavier metal particles,

. mers against the slant wall G wall G, is a slidable plate L mounted in groovesin the side walls H. This slide plate L has a lip M at its bottom edge, reversely inclined as shown in Fig. 1. The upper edge' of the plate L has a horizontal li N, bent to the right Aas shown and adapte to serve as a handle to lift the plate, as indicated by dotted lines in Fig. 1, toany position in the guiding grooves. A -thumb screw O opposite'one groove in the4 side wall H, fixes the slide L in any desired adjusted position.

This slide L serves as the bottom of the` supply hopper and is adapted to deliver the feed material more or less over the center of the shaft. and therefore directly upon the top of the rotating hammers, according to its adjustment in its grooves. The eifect of the hammers upon the entering feed is therefore varied. For instance, whenl thel slide-L is adjusted to the position shown by dotted lines thev hammers C will tend to drive the feed material more nearly upward or on a steeper slant to the horizontal than when the slide is in lthe position shown by full` lines. Any foreign matter that is heavier than the feed, such as pieces of metal, will be driven by the hammers across into contact with the slant wall G, on which they will impinge at a greater or less angle to the normal and will shoot upward under the slant wall K, up and over it, being deilected by the plate I into the pocket below said plate. The lighter feed is not so strongly aifected by the hammers as the although particles of the feed itselftcnd to fly out of the hopper when this d'eflecting lip plate is not used. The space between the vertical wall F andthe inclined slide L, is subject to the suction-effect ofthe hammers passing below it, whereby a certain rar'efication of the air are not s o readily driven upward out of the hopper. l v

While I have describedv and shown the plate K. adaptedto form a pocket. it is evident that this inclined plate K may be omitted or not required in certain kinds of material; when omitted the vertical wall will deflect the material driven by the hamagain and prevent top of the hopper. In some cases this is all that is necessary, while in others itis desirable to pro'vide a pocket for the collection of foreign material as above mentioned.

I have shown. in Fig. 3 a modified pocket in whichthe slant wall K' and the vertical .wall J as well as the top plate I', are cast, integrally with the side wall Inorder to release the foreignv material from this pocket, I have provided a slant bottom P adjusted downwardI them iying out of the lwardly Fig. 3,-inclined upward from each side wall H, in which side wall is an opening Q, -protected by a cover R pivoted at one edge, as shown in Fig. 3 and-indicated in Fig. 1. This provides for the discharge of accumulated metal or' gravel in said pocket when! it is formed' as shown in Fig. 3.

Thus the covered holes Q in the sides of the hopper, or the' hinged connection for the plate, rovide means for clearin the pocket behind the inclined wall K- respectively, when such form is used.

I claim:A

1. The combination with a machine of the character described having rotary beaters and a' hopper above said beaters provided with a slanting upwardly Baring wall between theside walls andon the far side of the hopper, of a lip plate comprising a wall extending from the top of said slanting wall inwardly and downwardly within the hopper, and having its lowest edge depending nearly into the path of the entering material that is-driven upwardly by impact with said hammers, from said slanting wall by an open space,-

-the lip plate thus forming with the sides and slanting wall a covered hood open in-A side the hopper for deecting thatportion of the feed 4that the hammers tend to throw out of the hopper.'

2. In a mach'ne of the character described, the combination with a casing, va set of rotary hammers mounted therein. and a supply hopper located above said hammers, of a horizontal lip plate hinged at one edge to the adjacent wall of saidhopper, and provided at its opposite edge with a vertical .wall depending between the side walls of the hopper, and having at the bottom'edge of said vertical wall'an upwardly inclined ledge' plate forming a. pocket with an opening within the hopper to receive the material driven by said hammers thereinto..

3; The combination with a machine of theV character described having rotary beaters,

and a hopper `above said beaters provided v with a slanting, upwardly Haring wallbetween sidewalls and on the far side of the hopper, of ar lip plate vcomprising a`wall extending inwardly and downwardly within the hopper from the top of said slanting wall forming a hood with an opening within the hopper, and then inclined upwardly and toward said slanting hopper wall forming a pocket in said hood,substantially as described..

4. The combination with a machine of the character described having rotary beaters, and a hopper Vhaving slanting grooves in the side walls above said beaters, and providedv with a 'hood projecting from lthe far side inwardly and downwardly, and thenv uptowar'd said far side forming a covered pocket opening within the hopper, and

` 1,262,156 *l h e, 1

af plate slidingly mounted in said slant" -In testimony whereof Ifhave alxed` my grooves toi form an adjustable 'bottom `forl signature in the resenoe of two witnesses.

Suid hopper and thus vary the upward di- TON'F. WILLIAMS.

e rection of `a. portion of the entering feed `Witnesses; f* A "5 that is drivenby Sadbeaters into said hood" H. M. Pmis'mb, h

' WM. G.

h and its pocket. v

` r Gopierot this patentmy be ohtained for nve cents each, by addressing the "Commissioner ofrntekanti,`

h Washington, D. 0."

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