US592828A - Grinding-mill - Google Patents

Description

(No Model.) I 2 Sheets'Sheetw 1. E. REYNOLDS. .GR'INDING MILL. No. 592,828 Patented Nov. 2', 1897.

' I MQWQM (No Model 2 Sheets-Sheet 2.

E. REYNOLDS.

I GRINDING MILL.

No; 592,828., v PatentedNov. 2,1897;

UNrTEio STATES PATENT OFFICE.

EDWIN REYNOLDS, OF MILWAUKEE, WISCONSIN.

GRINDING-MILL.

SPECIFICATION forming part of Letters Patent No. 592,828, dated November 2, 1897.

Application filed April 27,1897. $erial No. 634,136. (No model.)

To on whom it may concern.-

Be it known that I, EDWIN REYNOLDS, a citizen of the United States, residing at Milwaukee,in the county of Milwaukee and State:

of Wisconsin, have invented certain new and useful Improvements in Grinding-Mills, of which the following is a specification.

My invention pertains to grinding-mills,a nd particularlyto that class known as Ohilian. mills.

In the accompanying drawings, Figure 1 is a vertical sectional view of my improved mill; Fig. 2, a top plan view of the machine; Fig. 3, a side elevation of one of the rolls and a portion of its supporting device; Fig. 4, a sectional view of one of the bearings for the rolls; Fig. 5, a detail view of a portion ofthe oil-feeding device, and Fig. 6 a detail per spective View of the wiper or runner and a portion of the wheel upon which it is mounted.

My invention has for its object, first, to provide special means for connecting the rolls with the driving portion of the machine, whereby said rolls will adapt themselves to varying changes in speed and also to unusual conditions of material being operated upon, and, secondly, to provide an improved bearing for the roll, whereby all grit and other extraneous matters are excluded therefrom, while at the same time the bearing is thoroughly lubricated and the oil confined thereto, keeping it from working out and dropping down into thematerial being operated upon. Other advantages are also presentnamely, the compactness of the machine and the comparatively few working parts, said parts being so arranged as to render the device free from unnecessary strains.

A designates the base of the machine, having converging sides and a removable circular track B, these parts being of any approved type. The central raised portion of the base is provided with a bearing in which is stepped a vertical shaft 0, having secured to it one above the other two sets of radiating or projecting arms D, each of said arms be ing provided near its outer end with a vertically-disposed bearing or opening. In these bearings or openings are mounted upright spindles E, the spindles being free to rotate and to move vertically therein, the vertical movement in an upward direction being limited only by the head of a fork F, secured to the lower end of the spindle. Upon the lower end of each member of the fork there is provided a journal-bearing G, designed to form supports for the ends of the axle or journal H of the crushing-rolls I, secured-upon said axles or journals. Rolls I are of the usual form and provided with removable face or tire J, which, like track B, may be renewed when necessary.

Upon reference to Figs. 2 and 3 it will be noticed that the axial line of the rolls lies in a plane in rear of the stems or spindles E, so that said rolls have a trailing motion similar to that of a caster. This is due to the slight curvature given to the forks F. (Shown in Fig. 3.)

Power is transmitted to the mechanism through the upright shaft 0 and to the rolls through the arms or frames D and spindles E, causing the rolls to travel around the track B and to reduce any substance introduced into the mill.

Under the ordinary construction of mills of this character there is quite a strain exerted by the rolls, due to their centrifugal action.

Under the present construction, however, this is done away with by the swiveling of the rolls and placing their axis of rotation in the relation stated, the centrifugal force exerted tending to throw their rear face outwardly and their forward face inwardly, whereby by rotation upon their own axis and bearing upon the track or material they have a tendency to run inwardly. By this arrangement the centrifugal force is overcome and the rolls maintain their properrelative position.

When deflected by any foreign substance too hard to be crushed, the rolls will always tend to resume their normal relation, and the same is true when the roll passes over an obstruction, the spindle E permitting it to rise bodily,'preventing any straining of the parts. To prevent too great lateral deflection of the rolls, the upper end of spindle E may be formed or provided with a fixed collar K, having depending fingers L, which extend down upon each of the adjacent arms D, thereby limiting the rotation of said shaft or spindle, and consequently the deflection of the rolls. It is of course desirable that none of the substance being reduced or any other matter shall work into the bearings of the rolls, and it is also equally as desirable and important that no oil or lubricant shall be permitted to work out of the bearings and drop down into the material.

To exclude any extraneous matters from the bearings, each roll is provided upon each face with an annular and outwardly-flaring collar M, formed or secured to the roll concentric to the axle and extending outwardly over the end of the journal-bearing when the parts are assembled. The forks F upon that face next the roll are provided with a lip or flange N, inclined outwardly from top to bottom, as shown in Fig. at. This portion is preferably formed separate from the fork, as seen in said figure.

Any material which may be carried up by the roll or otherwise will drop down upon the collar M and be deflected away from the bearing thereby, or if it strikes the fork and works down thereon under said collar it will come in contact with lip N and be discharged at the lower end. It will be noted upon reference to Fig. 4 that the upper end of said lip N stands well in under collar M, while the lower end, due to the inclination, projects out beyond said collar.

Axle II is provided with a flaring collar 0, which catches or gathers any oil which may work along said axle and throws the same off by centrifugal action into a recess P, said recess in turn carrying the oil back into a chamber Q, formed in the lower part of the jourrial-bearing.

Secured to and designed to rotate with the axle is a wheel R, provided with an annular groove or channel S in one face thereof, into which at the upper side of the shaft extends an inclined lip T, leading to an opening U above the shaft, said lip being formed integral with the journal-box.

Upon the upper side of the wheel R there is loosely seated a wiper or runner V. (Shown in detail in Fig. 6.) Said wiper or runner is provided with depending lugs a upon each side, which when the runner is on the wheel extend down by the sides thereof and serve to maintain the runner thereon.

As shown in Figs. 4, 5, and 6, the runner is provided with an inclined face W, which serves when the machine is in operation to deflect the oil from the wheel onto the lip T.

Stops X, formed integral with the upper part of the j ournal-bearin g, serve to keep the wiper or runner from being carried around by the wheel. One or the other of these steps will of course be brought into operation, according to the direction of rotation of the wheel.

\Vheel R, running in the oil in the lower part of the chamber Q, carries up a certain amount upon its surface, and as the oil comes into contact with the runner or wiper V its inclined face \V deflects or directs it off onto lip T, whence it passes onto the upper side of the axle.

A cap Y is secured upon the outer end of the bearing.

Having thus described my invention, what I claim is 1. In a mill, the combination of a bed; a power-shaft; a roll traveling upon said bed; and a connection between said roll and shaft whereby said roll is free to rise and fall vertically and to swing in a horizontal plane irrespective of the movement imparted by the shaft.

2. In a mill, the combination of a bed; a power-shaft; a roll traveling upon the bed; a horizontal axis for the roll; and a connection between the axis and the shaft whereby said roll is free to rise and fall vertically and to swing in a horizontal plane.

3. In a mill, the combination of a powershaft; an arm secured thereto; a verticallydisposed spindle or shaft rotatably secured in said arm; and a roll journaled to said spindle upon a horizontal axis in rear of the vertical axis of the spindle.

at. In a mill, the combination of a powershaft; an arm secured thereto; a verticallydisposed spindle or shaft mounted in said arm, and free to rotate and to rise and fall therein; and a roll journaled upon a horizontal axis in the lower end of said spindle in rear of the vertical axis thereof.

5. In a mill, the combination of a powershaft; a frame secured thereto provided with a series of radiating arms; a series of spindles or shafts rotatably mounted in said arms; and rolls journaled in the lower ends of said spindles, the axis of rotation of said rolls being in rear of vertical axis of the spindles, substantially as described.

6. In a mill, the combination of a powershaft; two frames secured thereto one above the other, and provided with a series of radiating arms; spindles or shafts rotatably mounted in said arms and rolls journaled in the lower ends of said spindles, the axis of rotation of said rolls being in rear of the vertical axis of the spindles.

7. In a mill, the combination of a powershaft; an arm secured thereto; a spindle rotatably mounted in said arm, and provided at its lower end with an inclined fork; and a roll journaled in said fork.

8. In a mill, the combination of a powershaft; an arm radiating therefrom; a spindle rotatably mounted in said arm, and carrying a roll at its lower end mounted upon a horizontal axis and free to turn thereon; and a stop secured to the upper end of the spindle designed to limit its rotation.

9. In a mill, the combination of a powershaft; an arm radiating therefrom; a spindle rotatably mounted therein, and carrying a roller at its lower end a collar upon the upper end of the spindle; and fingers extending down from said collar and designed to come into contact with the arm substantially as and for the purpose described.

10. In combination with a roll and its axle,

a flaring collar upon the'end of said roll; a

support for the axle; and an inclined lip as N carried by the support and extending in under the collar at its upper end.

11. In combination with a roll and its axle; a flaring collar upon the end of said roll; a support for said axle extending into said collar; and an inclined face formed upon said supportextending from a point at its upper side within the collar to a point at its lower side outside the collar.

12. In combination with a roll and its axle; a journal-bearing for said axle; a Wheel secured upon and rotating with the axle, and provided with a groove in its side face; and an inclined lip as T extending into said groove at the upper side of the axle.

13. In combinationwith aroll and its axle; a journal-bearing for said axle; a chamber formed in the lower part of said bearing; a wheel secured upon and rotating with the axle, and provided with a groove in its side face; an inclined lip extending into said groove at the upper side of the axle; and means for deflecting the oil from said Wheel upon the-lip.

14. In combination with a roll and its axle; a journal-bearing for said axle; a wheel provided with a groove in its side face, secured upon and rotating with the axle; an inclined lip extending into the groove at the upper side of the axle; a runner as V mounted upon the upper side of the wheel; and stops to limit the movement of the runner.

15. In combination with a roll and its axle; a journal-bearing for said axle; a wheel provided with a groove in its side face, secured upon and rotating with the axle; an inclined lip extending into the groove at the upper side of the axle; a runner as V mounted upon the upper side of the wheel, and provided with a beveled face W; and stops to limit the movement of the runner.

In witness whereof I hereunto set my hand in the presence of two witnesses.

EDWIN REYNOLDS. Witnesses:

W. E. DoDDs, THEO. A. SCHROEDER.

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