US1404560A - Ore mill and the like - Google Patents

Description

H. T. WILEY.

ORE MILL AND THE LIKE.

APPLICATION FILED 0014. 19x9.

1 ,404,560, Patented Jan. 24, 1922.

3 SHEETS-SHEET L HMW A TTOR/VEYS H. T. WILEY.

ORE MILL AND THE LIKE.

APPLLCATION FILED ocr. 4- 1912.

1,404,560. at am 24, 1922.

INVENLOH H T. YYILfiY LZMQQ ATTORNEYS H. T. WILEY.

ORE MILL AND THE LIKE.

APPLLCATION FILED OCT. 4 1919.

' Patented Jan. 24, 1922.

3 SHEETS-SHEET 3- z 7 L A INVENTOR HT WILEY W %i A TTORNE Y8 UNITED STATES PATENT OFFICE.

HENRY THOMAS WILEY, 0F CAKE, OREGON.

ORE MILL AND THE LIKE.

T 0 all whom it may concern:

Be it known that I, HENRY THOMAS VILEY, a citizen of the United States, and a resident of Cake, in thecounty of Malheur and State of Oregon, have invented certain new and useful Improvements in Ore Mills and the like, of which the following is a specification.

Thi invention relates to an improvement in ore mills, seed and grain mills and the like, and one of the principal objects of my invention is to provide an improved mill which may be used for various purposes, such as crushing quartz, or grinding grain, the construction being such that only slight variations in construction are necessary to adapt the mill to various uses.

A further object of the invention is to provide an improved mill in which the crushing process is accomplished by the operation of a gravity actuated crushing member arranged inside of a vertical rotating wheel carrying inclined plates against which the crushing member operates.

A further object of the invention is to provide an improved mill of the class described, which will be extremely simple, durable, efficient in operation and inexpensive to manufacture.

With these and other objects in view which will become apparent as the description proceeds, the invention resides in'the construction, combination and arrangement of parts hereinafter more fully described and claimed, and illustrated in the accompanying drawings in which like characters of reference indicate like parts throughout the several figures of which:

Figure 1 represents an elevational view of an ore mill constructed on the principles involved in my invention;

Figure 2 represents an elevational view of the screen for regulating the size of the ore discharged r igure 3 represents a side elevational View of the drum and associated parts;

' Figure 4: represents a fragmentary view enlarged, one side of the drum having been removed, showing the construction of crushing member;

Figure 5 represents a similar View, the crushing member being shown in section and the construction being that used in a grain mill Figure 6 represents a sectional perspective View taken on the line 6-6 of Figure 5; and

Specification of Letters Iatent.

Patented Jan. 24, 1922.

.Application filed October 4, 1919. Serial No. 328,453.

Figure? represents a fragmentary view showing in side elevation the drum of the grain mill shown in Figures 5 and 6.

Figure 8 is a view showing in edge elevation and somewhat diagrammatic the ore mill shown in the preceding views.

Referring more particularly to Figures 1 to 4: of the drawings, I provide a drum lraving a peripheral wall 1, and annular side walls 2. A shaft 3 extends. axially through the drum, and may be driven from a power pulley 4.

Spokes 5 mounted at their inner ends on a hub 6 fixed to the shaft carry the drum, whereby the latter will be rotated with the shaft.

Against the inner side of the peripheral wall 1 is arranged end to end, a series of plates 7 each of which is substantially of a wedge shape, having a flat upper surface '8, a narrowed end 9, and a relatively wide end 10. The plates are arranged as indicated in Figure 4: end to end, the narrow ends of the plates resting in under out shoulders 11 provided in the large ends of the adjacent plates. The flat surfaces 8 of the plates, thus lie in planes which are set at an angle one with respect to the other around the periphery of the drum. Set screws or bolts, or similar fastening devices 12 passing through the side walls of the drum and through the larger ends of the plates, retain the latter against displace ment.

The crushing member includes a pair of rollers 18 retained in relative position one with respect to the other, and held by the action of gravity down against the crushing surfaces 8, by means of a weight 14 arranged in parallel relation with the rollers and carrying frames 15 which are hinged as at 16 to lateral ears projecting from the upper portion of the weight. Each of these frames is in the form of a pair of arms. connected by pins 17 arranged in parallel relation with the rollers 13. Each of the pins 17 has a guide roller 18- rotatably mounted thereon. Cross arms 19 fixed to the ends of the weight 14, project to either side thereof and carry pins 20 on which additional guide rollers 21 are mounted. It will thus be seen that each of the crushing rollers 13 is retained in place by means of the guide rollers 18 and 21, these guide rollers being arranged in a series around the upper surface of the crushing rollers.

,The weight is rounded at its lower face as at 22, and this rounded surface assists the rollers 13 in the crushing process. Channels 23 provided in the side walls of the weight serve to receive the guide rollers 21. 1

The action of gravity tends to maintain the weight and the rollers always at the lower point of the drum, and hence as the latter rotates, the crushing surfaces pass beneath the weight and rollers, and the resultis that the weight together with the rollers pass across the surfaces 8 of the plates, thus crushing any material which may be deposited thereon.

, It will be noted from Figure 4 that the lines of contact between the rollers and the weight and the crushing surfaces 8, occur at analogous points with respect to the crushing surfaces, and hence the rollers and weight will move uniformly up the inclined surfaces as the drum rotates, and will drop together from one surface to the other, as will be readily understood.

A conical flange 24 arranged on one side of the drum, acts as an intake to the mill, and a sinnlar flange 25 arranged on the opthe converging arms 31 supporting the screen. The action of gravity will retain the screen suspended against the inner edge of the discharge funnel 25, as indicated in Figure 3, at the lower point of this discharge funnel. The ore being discharged from the mill, will endeavor to flow from I the mill at the lowest point of the latter .to pass through the screen will be retained 1n the mill until it is ground to a fine enough and hence must pass through the screen in seelnng its exit. Any ore whlch is too large size to find a ready passage through the meshes of the screen.

Referring to Figures 5, 6 and 7 I have here shown a modified form of a mill which is. particularly adapted for the grinding of grain and for separating the meal from the branand for discharging the same separatelyfrom the drum 1*.

As shown in Figure 7, the side corresponding to the dischargeside of the drum 1 is closed by a solid wall 2 so as to prevent the discharge of the grain therefrom as in the first form of my invention. The drum 1 is provided exteriorly thereof with a con- .-tinuous peripheral channel or trough 32 which is formed at regularly spaced intervals with discharge spouts L and L arranged in pairs, as illustrated to advantage in Fig. 8, the spouts L and L of each pair extend in opposite directions from the periphery of the frame 1 so that when the drum rotates, the discharge ends of the spouts are moved in different pairs. In the present instance I have shown the peripheral channel 32 dividedinto four separate and distinct sections, adjacent sections being separated at their confronting ends by the discharge spouts L and L. Arranged within the drum 1 and adjacent the channel 32 are separating screens S The screensS correspond in length to the sections of the channel 32, and, as shown in Figures 5 and 7, .each screen S having one of its ends overlying the spout L and connected to a partition 33 between adjacent spouts L and L. The other end of each screen S is connected to a partition 34: disposed adjacent the spout L, and is flared inwardly as at 35 to prevent the depositing of the grain into the spout L.

As in the first form of my invention I provide an annular series of plates 7*, such plates in the present instance being provided with openings 36 adjacent their smaller ends and across which screens38 are placed.

The crushing device can be of the same construction as that used in the ore mills, and as the grain is ground upon the inner surfaces of the plates 7 it falls through the screens 38 onto the screens S and from there to the channel 32.

With the drum 1 rotating in the direction of the arrow in Figure 7 the grain which percolates through any one of the openings 36 falls 'onto the adjacent screens S, and as all of the screens S rotate with the drum, it will be clear that the ground grain upon falling onto the screen will be precipitated toward thelower end thereof. The mesh of each screen S is such that only the meal percolates therethrough, while the bran remains upon its inner surface and is ultimately discharged through, the discharge spout L. The meal in passing through the screen S falls into the trough 32 and is discharged through the adjacent spout L. It will be understood that the partitions 33 and 34: prevent retrograde movement of the ground grain during the rotation 'of the drum, 'so that with the drum rotating continuously in ,a clock-Wise direction the meal and bran will be discharged successively throughout the several spouts L and L.

By virtue of the fact that the discharge ends of spouts L and L move in different planes it will be clear that the bran discharged fromthe spout L will not mingle with the meal discharged from the spout L so that a separate collection of the two is rendered possible.

Although I have herein shown and described only two forms of mills embodying my invention, it will be understood that various changes and modifications may be made without departing from the spirit of the inventionand the spirit and scope of the claims.

I claim 1. A mill comprising a vertically arranged rotating drum, a plurality of plates arranged against the peripheral wall of the drum end to end and having upper crushing surfaces arranged in various planes with -respect to each other, a pair of rollers arranged within the drum and adapted to roll against the surfaces of the plates, a weight arranged between the rollers, and having a surface adapted to move across and contact with the surface of the plates, and guide rollers carried by the weight for retaining the first said rollers in position relatively to each other.

2. In a mill, a vertically arranged rotating drum, a plurality of substantially wedge shaped plates arranged end to end around the peripheral wall of the drum, the upper surfaces of said plates being arranged in various planes with respect to each other, and gravity actuated rollers arranged in the drum transversely therein and adapted to roll across and contact with the upper surfaces of the plates.

3. A gravity actuated crushing member for use in connection with mills, comprising a pair of spaced rollers, a weight arranged between the rollers, brackets hinged to the weight and'over lying the rollers, and rollers carried by the brackets and engaging with the first said rollers, and additional guide rollers carried by the weight and likewise engaging the first said rollers.

4. A gravity actuated crushing member for mills, including a pair of spaced rollers. a weight arranged between the rollers, and guide rollers carried by the weight and engaging the first said rollers, for retaining them in predisposed position with respect to each other, substantially as described.

5. A crushing member for mills including a plurality of crushing rollers, a weight,

and means connected with the weight on opposite sides thereof for mantaining the crushing rollers in predisposed position with respect to each other.

6. A mill comprising a rotatable drum formed on its periphery with discharge spouts arranged in pairs about the periphery of said drum, a circular series of plates within said drum, grinding means associated with said plates, means for directing part of the ground material to said spouts, and means for separating the fine material from the coarse part thereof and for discharging the same separately through said spouts.

7 A grinding mill comprising a rotatable drum, stationary grinding means within the drum, a plurality of plates within said drum having screened openings formed therein, and a plurality of screens within said drum arranged to discharge the coarse and the fine parts of the ground material from said opening separately through the periphery of said drum.

8. A grinding mill comprising a rotatable drum, stationary grinding means within the drum, a plurality of plates within said drum having screened openings formed therein, a plurality of screens within said drum arranged to discharge the coarse part of the ground material from said openings through the periphery of said drum, and a trough arranged to receive and deposit the fine part of the ground material exteriorly of the drum and separately from the coarse material.

9. A mill comprising a rotatable drum having inlet and outlet openings formed in the opposite sides thereof, a shaft extending through said openings and operatively connected to said drum, grinding means within the drum, and a segmental screen swingingly supported on said shaft, said screen normally occupying a vertical position and screening a portion of the outlet opening for the purpose described.

HENRY THOMAS WVILEY.

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