US831505A - Cleaner for disk harrows. - Google Patents

Description

PATENTED SEPT. 18,

0. GAYLORD. CLEANER. FOR DISK HARROWS.

APPLICATION FILED 13110.4. 1905.

2 SHEETSSHEET 1.

/NVENTO/7 ARTHUR C.GAY LORD I A TTOHNE Y8 No. 831,505. I PATENTED SEPT. 18, 1906.

' ,A. 0. GAYLORD.

CLEANER FOR DISK HARROWS.

APPLICATION FILED DEC. 4, 1905.

2 SHEETS-SHEET 2.

4 ARTHURCGAYLOQ D A TTOF/VES UNITED STATES PATENT DFFIGE.

ARTHUR COVVLES GAYLORD, OF GALESBURG, ILLINOIS, ASSIGNOR TO GALESBURG COULTER-DISC 00., OF GALESBURG, ILLINOIS.

CLEANER FOR DISK HARROWS.

Specification of Letters Patent.

Patented Sept. 18, 1906.

To all whom it may concern:

Be it known that I, ARTHUR CowLEs GAY- LORD, a citizen of the United States, residing at Galesburg, in the county of Knox and State of Illinois, have made certain new and useful Improvements in Cleaners for Disk Harrows, of which the following is a specification.

My invention relates particularly to that class of disk harrows in which the disks are arranged. in gangs and are provided with individual scrapers by which the earth and trash accumulating upon the disks is removed, its object being to roduce a device of the character which shall be efficient and one in which the scrapers can be adjusted to meet varying conditions.

To these ends my invention consists of certain novel features of construction, arrangement, and combination of parts, as will be hereinafter fully described, and pointed out in the claims, reference being had to the accompanying drawings, in which Figure 1 is a rear elevation of a gang of disks with my improvements applied. Fig. 2 is a similar view showing parts enlarged. Fig. 3 is a fragmentary elevation with one of the disks in section. Fig. 4 is a transverse section. Fig. 5 is a top plan view of a portion of the main frame and attached parts. Fig. 6 is a front elevation showing the scrapers locked. Fig. 7 is a perspective view of the rock-shaft and operating means.

In the drawings, A is the main frame or weight-box, provided with the standards B, carrying the ordinary disk gangs.

C is the scraper-bar, supported by bearings D at the rear of the frame. Said scraperbar 0 is so mounted as to be susceptible of an axial and revolving motion and carries the scraper-blade heads E, to which are riveted the scraper-blades F, extending downwardly and rearwardly. One of these heads E has an arm G, extending forwardly under frame A and terminating in the hook H, the open part of the same being downward. Engaging this hook is an eye I, which is at the lower end of arm J, extending downwardly from tending upwardly from the forward end of rocker-shaft K is a foot-lever L, upon which is a perforated extension M, to which is attached one end of a coil-spring N, the other end of which is attached to frame A. The

the rocker-shaft K. Ex

rocking shaft K is supported by boxings O and is susceptible of an axial as well as a revolving movement. Upon the front of frame A is pivoted the weighted dog or catch P,which is adapted to engage and hold the lever L. In its normal position the lower end of the scraper-blade F is held back and away from the outer edge of the disk X by the coiled spring N, so as not to clog the disk with dirt or trash.

In operating the scraper-blades from the drivers seat the foot-lever L is pushed over to position shown in dotted lines, Fig. 5. As the lever is so pushed, the rocker-shaft K begins to revolve, carrying the scraper-bars C and the attached scraper heads and blades first toward disks X by means of the'arm J, eye I, hook H, and arm G, and then as this movement continues to advance and the eye I begins to describe an arc of a circle upwardly the shaft K is caused to move forwardly in its bearings by the upward movement of hook-arm G, and said arm is rotated as it moves laterally, causing the bar 0 to revolve in its bearings as well as to move axially, carrying all the attached scraper heads and blades. This combined movement carries the lower ends of the scraperblades first laterally toward the disks, swinging inwardly toward the center of the disks and coming in contact with the concave or inner surface of the disks at their outer perimeter, where they are pressed gently a ainst said disks as the movement of the blades advances toward their centers. Thus as the disks revolve their inner surfaces are relieved of any soil or trash adhering thereto.

The foot-1e ver L may be engaged with the hook P by lifting one edge of the foot, so as to allow the hook to engage the lever, and when thus engaged the scraper-blades are held against the disks near their centers. The lever L will be returned to its normal position and the blades to their normal position by the tension of the spring N when the foot is in contact with the lever L at the point of contact with the dog or catch P, as the said catch cannot then engage the lever. Thus at the will of the operator the scrapers may be held in contact with the disks near their centers whenever he chooses to do so, and in this position the blades-will have a tendency to prevent trash or soil in certain conditions of moisture from becoming clogged about the the reach of the moving soil and trash that may be carried up by the disks. Whenever trash is lodged upon the blades K in the scraping process, it is carried back and away from the moving disks, where it falls off. of its own accord or is removed, when the blades are again returned into the moving soil carried up by the disks in the process of again scraping said disks.

It will be noticed that the foot-lever L has a rotary and sliding movementthat is, the operator by placing his foot against the lever and pushing forwardly and sidewise causes the pendent crank-arm J to swing from a vertical position to a horizontal position underneath the weight box or frame A. If the sole of the shoe of the operator 1s pressed upon the forward horn of the foot-lever, the dog or catch P will engage the other horn and hold the lever in this position. If, on the other hand, the sole of the shoe is pressed against both horns of the foot-lever, the catch or dog P will be prevented from engaging the end of the horn, and thus the foot-lever L will be allowed to return to its normal position by the tension of the spring'N as the foot is withdrawn.

Thus it will be seen that I provide a device by means of which the scraper-blades are susceptible of engaging the inside surface of the disks from their outer edge to the hubs at the will of the operator, quickly or at leisure, and that they'can be locked in the inner position against the hubs or released to their normal position back and away from their cutting edge. The tension of these scraper-blades is to be regulated by the adjustment of the scraper-blade heads upon the square rod or shaft C by the set-screws S and also the throw of the points of the blades toward the hubs by the adjustment of the boxings carrying the crank foot-lever in the slotted boltholes R of the weight box or frame A.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is'

1. In a disk harrow, the combination with a series of concavo-convex disks, of a series of swinging scraper-blades therefor held nor mally away from the disks and their centers, a supporting rock-shaft for said blades, means for actuating said rock-shaft, and a catch cooperating with said actuating means to positively hold said blades against the inner faces and centers of said disks.

2. In a disk harrow, the combination with a series of concavo-convex disks, of a corresponding series of scraper-blades held normally away from the inner faces and centers of said disks, a rock-shaft supporting said blades mounted to shift axially and also to rotate, an actuating-lever to turn and shift said rock-shaft, a pivoted catch adapted to engage and retain said actuating-lever, and a spring controlling the rock-shaft to restore the blades to their normal position in reverse traverse along the inner faces of the disks.

3. In a disk harrow, the combination with a series of concavo-convex disks and a corresponding series of scraper-blades held normally away from the inner faces and centers of said disks, a rock-shaft supporting said blades mounted to slide axially and also to rotate, an actuating-lever to rotate and slide said rock-shaft, a shaft connected to said actuating-lever and mounted to slide axially and also to rotate, means connecting said shaft with the rock-shaft and means for adjusting said shaft laterally.

4. In a disk harrow the combination with a series of concavo-convex disks, of a corresponding seriesiof scraper-blades held normally away from the inner faces and centers of said disks, a rock-shaft supporting said scrapers and mounted to slide axially and to rotate, an arm projecting forwardly from one of said scrapers, a bell-crank lever mounted at right angles to said rock-shaft and having a pivotal connection with the arm projecting from the scraper-blades, and means for actuating said bell-crank lever to cause the scraper-blades to first move toward the inner faces of the disks adjacent to their perimeters and then swing inwardly toward the centers of the disks. v

5. In a disk harrow, the combination with a series of concave-convex disks, of a corresponding series of scraper-blades held normally away from the inner faces and centers of said disks, a rock-shaft supporting said blades, said blades being adjustable longitudinally with respect to said rock-shaft, said rock-shaft mounted to slide axially and also to rotate, an arm projecting forwardly and downwardly from one of said blades, a bellcrank lever mounted at right angles to said rock-shaft, said bell-crank lever and the arm projecting from the scraper-blade having a universal-joint connection, means for actuating said bell-crank lever, and means for adj usting laterally said bell-crank lever.

6. In a disk harrow, the combination with a series of concavo-convex disks, of a corresponding series of scraper-blades, a rockshaft supporting said blades and mounted to have an axially-sliding and a rotary movement, an arm projecting forwardly and downwardly from one of said blades, a shaft mounted at right angles to the rock-shaft to have an axially-sliding and also a rotary gage said foot-lever and lock the same,,

whereby the scraper-blades may beheld to inner faces and against the centers of the disks.

ARTHUR COWLES GAYLORD. Witnesses:

H. A. NELsoN, S. A. INeERsoLL.

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