US687953A - Charles desjardins - Google Patents

Description

No. 637,953. Patented pe. 3, |9ol.

c. nEsJAnmNs.

GRAIN DRILL.

App'licmon med rnb. 11,1901.)

(Nn Modal.)

'trs- 5o of the frame, however, is not material.

UNITED STATES PATENT EEICE.

CHARLES DESJARDINS, OF ST. PIERRE, CANADA.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent N o. 687,953, dated December 3, 1901. Application tiled February 115 1901. Serial No. 46,832, (No model.)

To a/ZZ whom t may concern:

Be it known that I, CHARLES DEsJAEDINs,

a subject lof His Majesty the'King of Great Britain, residing at St. Pierre, county of Prov- 5 encher, Province of Manitoba, Canada, have invented certain new andA useful Improvements in Grain-Drills; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in grain-drills of that class which employ a revoluble colter-disk in connection with a seed tube or spout; and the objects of the invention are, first, to provide a guard or furrowopener adapted to prevent the accumulation of earthin the seed-distributin g space, as well as to serve as a scraper and assist in keeping clean that surface of the colter-disk which faces the plowed land, and, secondly, to provide a scraper which is held yieldablyin contact with the opposite face of the colter-disk.

With these-ends in view the invention consists in the novel construction and arrangement of parts, which will be hereinafter fully described and claimed.

In the drawings hereto annexed, forming a part of this specification, Figure 1 is a perspective view of a portion of a grain-drill em! bodying my present improvement looking` at one side of the colter-disk. Fig. 2 is a similar view looking at the opposite face of the colterdisk. Fig. 8 is a transverse section through the roller-bearin g support for the colter-disk and representing the furrow-opener and the fender or guard in cross-section. Fig. 4 is a detail view of the parts comprising the scraper, illustrating a part of the colter-disk and its hub by dotted lines. Fig. 5 is a detail view similar to Fig. 4., but showing the scraper in its inoperative idle position.

The same numerals of reference denote like parts in each of the several figures of the drawings.

5 designates the frame, which is shown as consisting of side bars. joined together at their rear ends and bolted or otherwise united at their front ends. The detailed construction This frame supports a transverse axle 6, which is externally threaded at its end portions, as at 7. Said axle receives the ball-bearing cones 8, which are screwed on the threaded portions of the axle and are fitted in suitable openings provided in the sides of the frame, as clearly shown by Fig. 3, and upon the end portions of said axle are screwed the clamping-nuts 9, which bear against the outside of the frame and maintain the axle securely in a stationary position, whereby the axle and the cones are held in place on the frame. The colter-disk 10 is clamped in any approved way upon a hub 11, and this hub is provided with internal cups 12, which surround the axle and are disposed in opposing relation to the cones 8, said opposing faces of the cups and cones forming ballraces adapted for the reception of the bearing-balls 13, all as clearly shown by Fig. 3. As the axle is supported xedly in the frame, and as the hub of the colter-disk is mounted loosely on the axle through the medium of thebearing-balls, it is clearthat the colterdisk is capable of free rotation on the axle and within the frame, thus reducing the fricl tion and wear on the colter-disk. This colterdisk consists of a iiat plate of steel cut to the and the rim may be formed as integral parts. This rim is offset laterally from one face of A the disk, so as to produce a shallow recess 15, and the edge of the rim is beveled, as represented by the drawings, so as to have the rim flush with one face of the disk, while its beveled portion projects laterally from the other side of the disk and produces the annular recess l5.

The furrow-opener 16 is in the form of a plate and isdisposed in cooperative relation to one surface of the disk, the top edge of said plate being flanged,as at l7,and fastened to one side bar of the frame 5. One edge of this furrowopener is curved, so as to iit in a part of the recess 15 of the colter-disk; but the lower rear portion of this furrow-opener is deflected laterally or odset from the colter -disk in order to produce a tapering throat or space through which the grain deposited in the IOC chamber 18 by the seed spout or tube 19 is free to escape. The space 18 vis produced by the cooperative disposition of the furrowopener 16 to one side of the colter-disk 10, as shown by Fig. 3, and with this space communicates the lower portion of the spout or tube 19, the latter being stayed in place by the brace 20, having its upper end secured to the tube and its' lower end attachedwto one side of the frame. (See Fig. 2.)

It will be understood that the curved front edge of the furrow-opener 16 lies in the annular recess 15, so that the rim 14 of the colter-disk projects beyond the plane of the front edge of the furrow-opener, thus bringing the furrow-opener and the disk in such relation that the rim 14 excludes the admission of dirt to the space 18, besides minimizing the friction and wear on the furrowopener itself, which is exposed to the action of the earth when the drill is in operation.

To still further carry out the operation of excluding the dirt from admission to the grain-space 18, I have provided a fender 21, the same consisting of a plate which is iianged, as at 22, and is arranged to rest upon the top edge of one side bar of the frame 5, said fender being disposed in advance of the spout or tube 19. I prefer to attach the iianged edge 17 of the furrow-openerand the lianged edge 22 of the fender to one side bar of the frame by the use of through-bolts, which are indicated at 23 in Figs. 1 and 3, although the parts may be secured individually, if desired. The fender 21 is bent or inclined upwardly from the frame and arranged so that its edge will engage with one surface of the colter-disk, whereby the fender is so intimately related to the disk as to exclude the dirt from entering the grainchamber 18 through the upper part thereof, and said fender is also adapted to serve as a scraper in clearing the surface of the colterdisk on one side thereof. The other surface of the colter-disk is kept ina clean condition by a scraper 24, the same having a hinged connection at 25 with the curved upper end of a short post or arm 26. This arm is secured to a part of the frame 5 in any suitable way and is arranged in a position to support the scraper in active relation to the disk 10. `(See Fig. 4.) The pivotal connection of the scraper to the arm permits the scraper to have a limited movement laterally with respect to the colter-disk; but said scraper is held in its active position by the action of the spring 27, which is shown as attached to the scraper near its hinged connection with the arm, said spring bearing against the curved portion of the arm 26 in a manner to normally force the scraper inwardly and into engagement with the colter-disk. The spring is also housed within the curved end of the arm, so as to be protected thereby from accumulations of dirt, thus in a measure keeping the spring clear from interference by the lodgment of the soil thereon.

The spring 27 is shown by Fig. 5 as having a pivotal connection with the pivoted scraperblade, and in this figure the spring is shown adjusted to its inoperative position, so that it is free from the overhanging end of the arm 26, thus allowing the scraper to assume the idle position shown. Said spring, furthermore, may be compressed and turned on its pivotal connection with the scraper-blade in a manner to bring the spring into the position shown by Fig. 4, wherein the free end of the spring bears against the overhanging arm, and said spring is thus made to force and hold the scraper-blade to its working position.

Changes within the scope of the appended claims may be made in the form and propor- .tion of some of the parts, while their essential features are retained and the spirit of the invention is embodied. Hence I do not desire to be limited to the precise form of all the parts as shown, reserving the right to vary therefrom.

Having thus described my invent-ion, what I claim as new is- 1. The combination with a frame,of a colterdisk revolubly mounted in the frame and provided with a rim forming a recess in one face thereof, a furrow-opener supported by the frame and having a curved edge partly disposed within said recess and the rim of said disk, said furrow-opener forming with the disk an intermediate grain-chamber, and a fender also supported by the frame and disposed close to the disk, whereby the fender closes the top of the grain-chamber, substantially as described.

2. The combination with a frame,of a colterdisk revolubly mounted therein, a furrowopener secured to the frame and forming a grain-chamber with the disk, and a fender se'- cured to the frame, disposed in cooperative 'relation to one surface of the disk, and closing the top of the grain-chamber, substantially as described.

3. The combination with a frame, and a colter-disk revolubly mounted therein, of a furrow-opener attached to the under side of the frame and disposed in cooperative relation to one surface of the disk, and a fender secured to the top side of the frame and inclined therefrom toward said disk and over the open top side of a grain-chamber which is formed between the disk and the furrow-opener, substantially as described.

4. In a grain-drill, the combination with a revoluble disk, of ascraper-support, a scraper pivotally mounted on the support, and a pressure-spring interposed between the pivoted scraper and the support to normally hold the latter in engagement with the disk, said spring being shiftable from its operative position and adapted to release the scraper and IOO IIO

support and thereby permit the scraper to assume an idle position, substantially as described.

In witness whereof I have hereunto set my hand in the presence 0f two Witnesses.

CHARLES IESJARDINS.

Witnesses:

JOSEPH LAMOUREUX, OVIDE PREFONTAINE.

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