US1456353A - Mill - Google Patents

Description

May 22, 1923.

D. D. BARE MILL s Sheets-Shet 1 Filed May 1'7, 1920 INVENTOR ATTOR NEY WITNESS:

1,456,353 D. D. BARE MILL Filed May 1'7, 1920 3 Sheets-Sheet 2 W a m. M. J v w w 4 mm M 3 a a a 4 5 .5

2 a w .HMHHHHH. HHHHHH H. M m I I INVENTOR ATTORNEY W 6 A 7 Wa 2% D. D. BARE May 22; 1923.

MILL

Find My '17. 1920 3 Sheets-Sheet 5 ATTORNEY WITNBS:

Patented May 22, 1923.

TENT OFFICE.

DARIUS 1). BABE, or vv'Esr JEFFERSON, NORTH "CAROLINA.

' MILL.

Application filed May 17,

To all whom it may concern: Be it known that DARIUS D. BARE, a citizen of the United States, residinga't West Jefferson, in the county ofAsheand State of North Carolina, have invented new and useful Improvements in Mills, of which the following is a specification.

The invention relates to mills and resides in the provision of a pivotally mounted trough, for receiving the grain from the hopper, and conveying the latter to a feed chute, with means for vibratingthe trough, causing the latter to positively discharge said contents into the feed chute.

A further object of the invention, resides in the novel construction and arrangement of parts, by means of which the burr stones are rotated in opposite directions; and the construction of the means for conveying the grain from the trough to the working faces of the burr stone.

The nature and advantages of the invention will be better understood when the following detail description is read in connection with the accompanying drawings,.the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawings forming part. of this specification like numerals of reference indicate similar parts in the several views, and wherein Figure 1 is a side elevation.

Figure 2 is a vertical sectional view through the mill.

Figure 3 is a sectional view of a modified form of the invention.

' Figure 4 is a plan view of the adjusting screw and its associated parts.

Referring to the drawings in detail, 10 indicates a supporting base, upon which is mounted a. receptacle for housing the burr stones, and their associated parts, the receptacle comprising the separable sections 11 and 12 respectively, which permits access being had to the interior of the receptacle when the occasion requires. These sections are detachably held together in any suitable manner, preferablyv by means of the fastening element 13. A shaft 14 passes through the opposed sides of the receptacle, the shaft being journalled in bearings 15 arranged at one side of the receptacle and mounted upon the supporting base 10. A belt pulley 16 iscarried by one end of the 'shaft 14 so that the latter may be driven from a 1920. Serial No. 382,024.

suitable motor as will be readilyunderstood. Fixedupon the Ishaft 14 is the burrstone 17, which rotates with the shaft, the cooperating burr stone" 18 being mounted upon the shaft 14 for rotation in an opposite di-.

rection to the direction of rotation of the burr stone 17. The burr stone '18 is car, ried by a sleeve 19 having-a diameter greater than the diameter of the shaft'14, although the sleeve is journalled upon the shaft 14 as at 20. ,The sleeve is also shaped to provide a shoulder21, against which suitable packings 22 are arranged to bear, this packing being arranged in the sleevewand surrounding the shaft 14. Radiating from the sleeve 19 and secured'thereto in any suit-' able manner, are arms'24, engaging against one side of the burr stonelS, the arms being further designed to engage the periphery of thiselement at spaced points as at 25. Mounted upon the axle 14 is a hub 26, from which radiates arms 27similar in construction to the arms 24, the arms 27 not engaging or bearing against the burr stone 17. The offset portions 28 of the arms 27 are however, detachably connected with the similar portions 25 of the arms 24, the arms 24 and 27 united-1y defininig a frame-like structure to strengthen and reinforce the mechanism. Manifestly, the frame thus. de-.

fined by the arms 24 and. 27 is susceptible plurality of intake openings or slots 32 for the grain or the like, which isfed to these slots in a manner to be hereinafter *de scribed. The grain enters the the space between the working faces of sleeve. 19 thru the slots 32 and is forced into the burr stones l7 and 18 respectively, by

means of a feed screw 33 carriedbythe'shaft 14 and arranged within the sleeve 19.

- Attached to the shaft 14 for rotation therewith is a bevel gear 34, which meshes I with idler gears 35, the latterin turn mesh ing with a bevel gear 36 carried by the sleeve 19. By reason of this construction, and arrangement of parts it is apparent'that when the shaft =14 is rotated to rotate the burr stone 17*, therewith, the gears 34, 35

and 36 cooperate to impart rotary movement to the'burr stone 18, in a direction opposite to the direction of rotation of the burr stone 17, thereby increasing the working capacity of the mill.

Supported upon the receptacle by means of the standards 38 is a hopper 39, the neck 40 of the hopper is disposedabove the trough 41 which receives the grain or other material from the hopper 39. The trough is of such length as to terminate at one side of the receptacle, the trough however communicates with a feed chute 42 arranged at one side of the receptacle 'and through which the sleeve 19 projects as shown. The grain or other material is received from the hopper 39 by the trough 41, and deposited into the feed chute 42, which conveys the grain or the like through the intake openings or slots 32 of the sleeve 19. The grain is'conveyed to the space between the working faces of the burr stone in the manner above stated. For the purpose of controlling the discharge of grain from the hopper 39 to the trough, I provide a tubular member 44 which is slidably mountedupon the neck 40 of the hopper and normallyrests uponthe bottom of the trough 41. Rising from the receptacle is a standard 45 upon which is pivoted as at 46, a horizontally disposed arm 47, which controls the adjustment of the tubular member 44. The arm 47 is bifurcated as at .48 toreceive the tubular member 44 with which it is pivotally associated. The arm 47 has a threaded opening 49 which receives a threaded element 50, the latter being provided with a handwheel 51 at one end; Consequently, by turning the hand wheel 51 in one .direction, the arm 47 is moved upon its pivot 46 to elevate a tubular member 44 away from the bottom of the trough 41, thus allowing the continuous flowof grain to feed from the hopper 39- upon the trough-41. The particular amount of grain allowed to feed from the hopper 39 uponthe trough is regulated bythedegree of elevation of the tubular valve 44, or in other words the amount of space between the tubular valve 44 and the bottom of the trough 41. This is controlled by means of the threaded element as will be readily understood.

The trough 41 is pivotally mounted as at 53 for vertical movement, means being provided to vibrate the trough to insure the discharge of its contents into the feed chute 42. For this purpose I provide a cam54 for intermittently actuating or elevating a rod 55 which is connected at its upper end, as at 56, with a rocker arm 57 pivoted upon the receptacle as at 58 and connected with the trough 41. The rod 55 operates thru a guide 59- which is secured tothe feed chute. A spring 60 encircles the rod 55 and has one'end secured to the guide 59 and its opposite end secured to the rod 55 so that when the rod is-elevated, the spring 60 is placed under tension to lower the rod 55 after the highest point or cam moves from beyond the adjacent end of the rod :55. In consequence, the trough 41 is continuously vibrated to shake and move the grain contained therein in the direction of the discharge end of the trough into the feed working faces of the burr stones, into-the chute v61 which conveys the grain, to its{ proper destination.

In Figures 3 and 4 I have shown a modi fied form of the invention wherein the hopper is indicated at 65 and provided with 5% an internal shoulder 661113011 which is,-re mova'bly supported a screen 67 for the purpose of separating pieces of cob or the like from the grain. Embracing the neck 68 of the, hopper, is a sleeve-like member 69 having slots 70 for the reception of the lugs or pins 71 projecting from the .neck of the hopper as shown. This construction allows for the vibration of. the trough 72 in the manner-above described when the parts are in normal position., The trough 72 of course receives the material from the hopper 65, and conveys the same to the feed chute 73. In this form of the invention, I regulate the discharge of the grain :1;

from the hopper 39 to. the feed chuteby means of an adjusting screw 74adjustable through the brackets 75 securedto the. recep-tacle 76. Threaded on the screw'?74 is a collar 77 which moves longitudinally of w the screw when the v latter is rotated, and pivotally associated with this collar and with one end of the trough 7 2, is a link 78 manifestly, when the collar is moved forwardly on the screw, the trough 72 is-elevated, and when the collar 77 moves rearwardly of the screw the trough 72 is lowered. Consequently, the space between the bottom of the trough 72 and the sleevelike member 69 can be varied to regulate the dis- I charge of grain from the hopper 65- .to the feed chute 73. A portion of the bottom of the trough 72 is formed by a foraminated material 79 constituting-a seive for separating fine thrash from foreign, material from the grain, this foreign material passing through the seive and being conveyed rearwardly away from the feed chute 73 by means of a chute v80 forming a part of the trough arranged beneath the foraminated material 79. The trough is vibrated in this form of the invention the same as above described in connection with the preferred form. I

\Vhile it is believed that from the foregoing description, the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself in this connection and that such changes may be resorted to when desired as fall within the scope of what is claimed.

Havingthus described my invention what I claim as new is a p In a mill, the combination with a vertically disposed hopper and chute, of a-feed trough disposed horizontally therebetween with one end underlying the said hopper and its other end extending into the said chute, suspension means associated with the said chute for supportingone end of the said trough and being operable to impart vibratory movement through (the said trough,

a horizontally disposedadjusting screw rotatably supported below the hopper end,

of the said trough, and a link having one end pivotally supporting the hopper end of the trough: and having its other end con- V 'strainedto move along said' 'screw for adjusting the inclination of the said trough.

In testimony whereof I afiix my signature.

DARIUS D. BARE}

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