US1131238A

US1131238A - Reversible disk harrow.

Info

Publication number: US1131238A
Application number: US64732311A
Authority: US
Inventors: Edward M Heylman
Original assignee: ROCK ISLAND PLOW CO
Current assignee: ROCK ISLAND PLOW Co
Priority date: 1911-09-02
Filing date: 1911-09-02
Publication date: 1915-03-09
Anticipated expiration: 1932-03-09

Description

E. M. HEYLMAN. REVERSIBLE DISK HARROW. APPLICATION FILED SEPT. z. 1911.

2 SHEETSSHEET 1.

Patented Mar. 9, 1915.

E. M. HEYLMAN. REVERSIBLE DISK HARE/0W. APPLICATION IILED SEPT. 2. 1911.

Patented M21119, 1915.

2 SHEETS-SHEET 2.

ill"

mwmw yawk THE NORRIS PETERS C0,, PHOIUJJTHO. WASHINGTDN. D. C.

EDWARD M. I-IEYLBIAN, 015 BOOK ISLAND, ILLINOIS, ASSIGNOR TO ROCK ISLAND PLOW COMPANY, OF ROCK ISLAND, ILLINOIS, A GOBPORATIUN OF ILLINOIS.

REVERSIBLE DISK HARRO'W'.

Application filed September 2, 1911.

To all whom it may concern Be it known that l, EDWARD M. HEYLMAN,

a citizen of the United States of America, and resident of Rock island, Rock Island county, Illinois, have invented a certain new and useful Improvement in Reversible Disk Harrows, of which the following is a specification. My invention relates to disk barrows, and more particularly to that type of harrow commonly known as a reversible disk harrowthat is, one in which the disk gangs are adapted to be positioned so as to either throw in or throw out.

It relates more particularly to a reversi le disk harrow of the type embodying a transverse frame upon which the disk gangs are adjustably mounted.

Among the objects of my invention are to provide an improved means for mounting the disk gangs on this transverse frame, and also to provide improved means for adjust ing these disk gangs laterally on the frame, and also to rovide means for adjusting the gangs around a vertical and horizontal axis.

These and other objects of my invention will be more clearly understood by reference to the accompanying drawings, in which similar reference characters refer to similar parts, and in which- Figure 1 is a plan view of a disk harrow embodying the features of my invention. Fig. 2 is a side elevation of the same. Fig. 3 is a detail view of one of the disk gangs and the means for supporting the same. Fig. 4- is a sectional view taken on line 4 l of Fig. 1, looking in the direction of the arrows. Fig. 5 is a sectional view taken on line 5 5 of Fig. 1, looking in the direction of the arrows. Figs. 6, 7, and 8 are detail views showing the construction of the brace bar connected with each gang. Fig. 9 is a sectional detail view. Fig. 10 is a detail view of the transverse bar.

1 have illustrated a disk harrow compris- Specification of Letters Patent.

Serial No. 647,323.

These disk gangs are of similar construction and are mounted on this frame in a similar manner. 1 will, therefore, describe the manner in which one of these gangs is mounted on this frame, it being understood that this description will apply equally as well to the other gang.

Extending between the forward and rear frame bars 8 and 9 there is a fore-and-aft shaft or arbor 12 which is secured at its opposite ends to suitable castings 13 and 141, which castings are clamped to the frame bars '8 and 9 by means of the clamping

members

15 and 16, which are connected with the

castings

18 and 14 by means of the bolts 17. By this construction it will be readily seen that by loosening the nuts upon the end of the bolts 17 these

castings

18 and 1 1, and with them the fore-and-aft shaft 12, can be moved transversely of the machine along these frame bars and then be held in any desired position by again tightening these nuts upon the bolts 17. Mounted upon this foreand-aft shaft 12 and adapted to pivot upon the same there is a yoke-shaped saddle plate 18 provided with bearing openings in the rear end of its upper and lower arms, in which bearing openings the vertical standard 19 is supported. This vertical standard is enlarged at its lower end as at 20, and is secured to the yoke bar 21 which supports the disk gang in the well known manner. Extending laterally from the yoke-shaped saddle plate 18 there is a short arm 22 through the opposite end of which extends a bolt 23, which bolt is adapted to engage with an elongated slot 24 in the casting 25, which casting is secured to the inside of the frame bar 9 and is integral with the casting 14:. By this construction it will be readily seen that by loosening the engagement between the arm 22 and the slotted casting 25 this arm 22 can be moved so as to rotate the saddle plate about the fore-and-aft shaft 12, and this saddle plate can be held in place by again tightening the connection. between the arm 22 and the slotted casting 25.

The enlarged lower end 20 of the standard 19 is provided with a rectangular shaped depression through which passes the transversely extending bar 26. Upon each end of the bar there is a downwardly extending lug 26. One or the other of these lugs, depending upon whether the gangs are positioned to throw in or throw out, is adapted Patented Mar. 9, 1915..

' to engage withan opening in the forwardly shaft 29.

extending link 27, as vclearly shown in Fig. 9, being held therein by means of a cotter pin or the like, thereby forming a pivotal connection between the bar 26 and the link 27. The forward end of this link 27 is connected to the rock arm 28 secured to the rock This rock shaft is mounted in suitable bearings 30 and 31 secured to the forward frame bar 8. Loosely mounted upon this rock shaft and rigidly connected with the frame is an arc-shaped segment, while rigidly connected with the rock shaft adjacent to this segment there is a handlever 33 provided with a spring finger 3-1 adapted to engage with the teeth in this segment. When it is desired to adjust the disk gangs about a vertical axis so as to change the throw of these disks, it is merely necessary to disengage this spring finger from the teeth of the rack and to then move the hand lever 33 so as to rock the rock shaft 29 to move the rearwardly extending link 27 forward or back, as the case may be, and to thus rotate the disk gangs about the vertical standard 19 as an axis. The rock arm 28 is adjustably connected with the rock shaft 29, so that by merely loosening the boltand-nut connection 36 this arm can be moved longitudinally along the rock shaft to allow for the transverse adjustment of the disk gangs in the frame. hen the gangs are positioned in the manner shown in Fig. 1 so that they throw in, the connections are preferably so adjusted that when the disks extend at right angles to the travel of the machine the spring finger 34 upon the hand lever 33 is in engagement with substantially the forward tooth on the segment 32, so that the full length ofthe segment is available for obtaining the'forward' movement of the connecting link 27 for the adjustment of the disks'about the vertical axis. When it 7 is desired to position the gangs to throw out, it is merely necessary to disconnect the bar 26'from the link 27. then rotate the disk gang and then again connect the bar and link by means of-the downwardly extending lug 26 'at the opposite end of bar engaging with the'opening 3 7 at the extreme rear end of the link 27. By providing this extrahole 37 the adjustment is so that when the gangs are in the position to throw out and are positioned in a lineat right angles to the travel.

ofthe machine the spring finger at on the hand lever 33 is in engagement with the notch at substantially the rear end of the segment, so that substantially the entire to adjust the inner end of the gang, so that it is to the rear of the axis 19, while when the disks are reversed and are in position to throw out it is never desirable to have the inner end of the gangs at a point forward of the axis 19. Furthermore, by means of the adjustability of the rock arm 28 upon the rock shaft 29, the link 27 is always mounted in a position parallel to the axis of the machine, and there is therefore never any side throw placed upon this rod due to the transverse adjustment of the gangs.

In order to steady the disk gangs I provide a brace bar 38 which at its upper end is connected to the saddle plate 18 by means of a hook and eye connection and as shown in Fig. 7. Heretoforc when such a brace has been used difliculty has been experienced owing to the binding effect of this brace when the gangs were rotated. I overcome that objection by the provision of a form of universal joint between the lower end. of this red and the gang. To obtain this joint, I provide the lower end of the bar 38 with a yoke member 39, the opposite arms of which are pivotally connected with the bear ing 4&0 which is loosely mounted upon the shaft all of the disk gang. By this construction it will be seen that the brace is adapted to swing in a vertical plane with respect to the disk gang, owing to the rotation of the shaft 41, and is free to rotate laterally on account of the pivotal connection between the yoke 39 and the bearing -10.

It is further evident that in my construction I have provided a very simple and efficient means for mounting the gangs on the side frame, but it is to be noted that instead of mounting these gangs between the front and rear frame bars, as in prior construc tions, I have obtained a very efiicient construction by positioning the standard upon which these gangs are mounted upon the rear of the frame bar 9-that is, outside of the frame.

lVhile I have illustrated one particular embodiment of my invention, it will be un derstood that I do not wish to be limited to this exact construction, as many other obvious modifications will suggest themselves 115 to one skilled in the art.

What I claim as my invention is:

1. In a disk harrow, a frame comprising front and rear frame bars, a fore-and-aft arbor mounted between said frame bars, a 120 saddle plate pivotally mounted upon said fore-and-aft member, and a disk gang supported by said saddle plate to the rear of said rear frame bar.

2. In a disk harrow, a frame comprising 125 front and rear frame bars, a saddle plate mounted in said frame and adapted to be adjusted transversely thereof and about a fore-and-aft axis, a yoke-shaped portion on the rear end of said saddle plate, a vertical 130 standard supported by said yoke-shaped portion to the rear of said rear frame,bar, and a disk gang carried by said standard.

3. In a disk harrow, a frame comprising front and rear frame bars, a saddle plate mounted in said frame and adapted to be adjusted transversely thereof and about a fore-and-aft axis, a yoke-shaped portion on the rear end of said saddle plate, a vertical standard supported by said yoke-shaped portion to the rear of said rear frame bar, a disk gang carried by said standard, and means for adjusting said gang about said vertical standard.

1. In a disk harrow, a frame comprising front and rear frame bars, a saddle plate mounted in said frame and adapted to be adjusted transversely thereof and about a fore-and-aft axis, a yoke-shaped portion on the rear end of said saddle plate, a vertical standard supported by said yoke-shaped portion to the rear of said rear frame bar, a disk gang carried by said standard, a rock shaft mounted upon said front frame bar, and means for rotating said rock shaft to rotate said gang about said vertical standard.

5. In a disk harrow, a frame, a disk gang mounted in said frame, a transversely ex tending bar connected with said gang, a forwardly extending link connected to the 111-- ner end of said bar, a rock shaft, connections from said forwardly extending link to said rock shaft, a lever for rotating said rock shaft to cause a fore-and-aft movement of said link for adjusting said gang about a vertical axis, means for reversing said disks, and means for connecting said transverse bar to said forwardly extending link ata second point when the disks are in reversed position.

6. In a disk harrow, a frame, a saddle plate mounted on said frame, a disk gang, means whereby said disk gang is carried by said saddle plate, a brace bar connected at one end to said saddle plate and a universal joint between the opposite end of said bar and said disk gang.

7. In a disk harrow, a frame, a saddle plate on said frame, a disk gang carried by said saddle plate, a brace bar connected at its upper end to said saddle plate, a yoke secured to the lower end of said brace, a rotary bearing on the shaft of said disk gang and a pivotal bearing between said bearing and said yoke, whereby said brace is free to swing in a vertical or horizontal plane.

Signed by me at Rock Island, Illinois, this 80th day of August 1911.

EDWARD M. HEYLMAN.

Witnesses:

L. F. CANNON, C. E. SHARPE.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of IlPatents,

Washington, D. G."