US1735232A - Seeding machine - Google Patents

Description

' NOV. 12, 1 929. B N

SEEDING MACHINE Filed March 1, 1928 2 Sheets-Sheet l m 5 W m Nov. 12, 1929. T, BRENNAN j 1,735,232

SEEDING MACHINE Fil ed March 1, 1928 2 Sheets-Sheet 2 gwwntoc "view being on the line Patented Nov. 12, 192 9 UNITED STATES PATENT OFFICE THOMAS BRENNAN, 0F

SEEDING MACHINE Application filed March 1, 1928. Serial No. 258,342.

My invention relates to improvements in seeding machines, and particularly to the speed changing and gear throw-out mechanisms' thereof, whereby the rotation of the feed-runs, common in such machines, may be readily increased or decreased according to requirements, and the driving gearing therefor placed into or out of o ment, as conditions deman In the accompanying drawing, forming part hereof, Figure 1 is an end elevation of that portion of a seeding machine embodying my invention, said'section being taken on the line 11 of Fig. 3; Fig. 2, is a view similar to Fig. 1 with the idle gear thrown out, said 22 of Fig. 3; Fig. 3,

a section on the line 33 of Fig. 1; Fig. 4, a

section on the line 44 of Fig. 1; Fig. 5 a

and Figs. 6, 7 b

section on line 5-5 of Fig. 1; and 8 are sections on the lines 88, respectively, of Fig. 3.

In said drawings the portions marked 5 indicate the seed hopper of any preferred con struction, havingat each end on its under side a slotted gear-shield 6, for the reception of a portion of the gear, feed-run driveeshaft, 8, the shield preferably embodying a projecting member, 9, at its rear end, and a spring-holder,

Upon the axle, 15, which constitutes the 6-6, 77 and I driving means for the machine, as is common,

I mount a ear throw-out hanger, 16, having a hub, 1 adapted to be positioned about sleeve, 18, on said axle and securedby a bolt, 19, or otherwise. A double driving gear, 20, is provided on said sleeve and adapted to normally mesh with a-gear, 22, adjustably secured in theha'nger 16. The double gear has its smaller diameter ring of teeth at the outer end of axle 15, while the feed-run gear, 24, is the reverse, that is, its larger diameter 1 ring, 25, is at the outer side of shaft 8. Gear 22 is supported on a sleeve 22 in the hanger by a bolt, 26, which passes through the parts, its opposite end being fastened to a supporting arm, 27, embodying a. bearing mounted on the side of the gear assemblage opposite to the hanger, The hanger and supporting arm are provided with registering holes,26,27',so that when a change of speed is desired the erative engagea cam-grip,

mounted upon the 10, at its front end.

.purpose already described.

In machines designed for distributing a intermediate gear 22 may be turned about or reversed in its position so that it will mesh.

with'the larger toothed rim of gear 20 and the larger toothed ring of t e feed-run gear 24. As will be understood, hanger 16 is pivotally mounted upon sleeve is desired to remove or replaceintermediate gear 22 the hanger may be swun rearwardly, and thus disengages'its gear 22 rom the gear 24. To facilitate this operation I provide 30, at the upper end of hanger 16 which, when pulled rearwardly, engages the member 9, and has the effect of separating the hanger from said member, or in other words rocks the hanger on the axle 15 so that its gear 22 will be disengaged from the others, and by which arrangement a hand throw-out is provided for disconnecting the gear assemly to prevent rotation of feed run shaft 8, as circumstances may require. To effect the automatic return of the hanger and reengage- 18, and when it RACINE, WISCONSIN, ASSIGNOR T0 J. I. CASE COMPANY, 01''. RACINE, 'WISCONSIN, A CORPORATION ment of the gears I connect the holder 10 to the hanger by a tension spring, 32, which opcrates in a well known manner to return the hanger to normal pos t on;

In addition to the hand the. out 'de-.

scribed I also provide mechanical means for the same purpose, which is operable from one of the levers 33 which are common in seeding.

machines for raising and lowering the disks and other attachments connected b lifting arms, as 34, to a rock-shaft, as 35, m a well known manner, and which rock-shaft I utilize for operating the gear hanger 16 by providing a quadrant, 36, on said shaft, to which quadrant a link, 37, is slidably connected, said link having a slot 37 to permit independent throw-out of the gear carried by the hanger 16, its opposite end being mounted upon a non-rotatable bolt, 38, secured in a boss, 39, on the hanger. When said shaft 35 is rocked to raise the disks common to seeding machines (not shown) from the soil motion is imparted to link 37, which in turn moves the-han or 16 rearwardly, and thus throwing out the intermediate gear 22 in the manner and for the variety of seeds it is desirable according conditions to drive the feed-run shaft difierent' speeds, so that the feed-runs connected thereto willaccomplish .the most effective results, and for which purpose I provide means in connection withthe gearing described for readily changing the speed of the latter. In a bracket, 45, having arms 46, 47, I assemble a series of gear-wheels -of graduated diameters, preferably five wheels in number, and a driving gear, 48, the assemblage of gears being connected together and secured in the bracket .45 by a square shaft, 50. The arms 46, 17, are provided with yokes 46', 47, respectively, which fit onto the driving axle and sleeve 18, said sleeve carrying the gear-wheel, 51, meshing with driving gear 48 of the cone gear assembly. On the axle 15 adjacent the sleeve 18 is a sliding gear 55, splined to the axle 15, which gear may be shifted along the axle to engage any one of the five gears a, b, c, d, e, of the cone cluster, and through power from the axle '15 drives such gearing, which in turn causes gear 48, which engages gear 51 on sleeve 18, to drive the latter and rotate double gear 20 to drive intermediate gear 22 and the gear 24 on feed-shaft 8. Bracket 45 also includes an extension 57, the outer end of which passes through a frame member 58 of the machine, a coiled spring, 59, preferably surrounding said extension and held between it and said frame, by which means the cone assembly may be readily installed by forcing said extension through the frame part 58 sufiiciently until space is provided between axle 15 and the yokes 46', 47 to admit the latter, the ends of which partially overlap the sleeve 18 and axle 15, to be firmly posi tioned .thereagainst by the expansion action of said spring; and although I have described the bracket as yieldingly mounted I may where desirable fixedly secure the same to the machine.

In order that thesliding gear 55 shall positively engage the desired gear of the cone cluster, I provide a notched rack or bar, 60, bolted to the members 46, 47', and mount thereon a sliding controller, 62, comprising a plate or boxing having a downwardly projecting member, 63, engaging a groove, 64, in collar 65 forming part of gear 55. I secure in the controller a lever, 67, preferablyhaving its outer end, 68, weighted, and its lower end, 69, projecting downwardly to register with a notch, 70, in the bar 60. By releasing said lever 67 the controller 62 may be readily shifted along the bar from one notch to another opposite the periphery of one of'the gearsa, b, c, d, e,and when the desired gear has been selected the controllervwill become locked agaifist displacement by its projecting end registering with the notch and so held in position by the weighted outer end 68 of the lever. When the cone bracket a5 isyieldingly mounted as described, which method I prefer but desire to be understood as not being so limited, the sliding gear 55 may be readily moved along axle 15 without interference by forcing the yokes e6, 47', away from the axle, so that there will be no engagement between the cone gears and said sliding gear until the controller 62 has registered in the appropriate notch 70 opposite the geaif of the cone assembly with which it is desired. to mesh said sliding gear. Whenthe gearing 20 on axle 15, and intermediate gearing 22 meshing with gear 24 are adjusted to low speed, and the sliding gear 55 on said axle is meshed with the largest gear on the cone assembly, in which manner the entire system of gearing is driven at lowest speed, the speed of the feed-run shaft 8 can be increased byadjusting the sliding gear 55 to smaller gears on the cone cluster, so that by such adjustment five speeds are obtainable; and when the system is to be adjusted for high speed, and the sliding gear 55 is meshed with the smallest gear of the cone. then the highest speed is obtainable, but if a lesser speed is desired under such adjustment it is but necessary to shift the sliding gear to a larger gear of the cone as desired, in which latter event five speeds are also obtainable, so that by mv improvement I am enabled to drive the shaft 8 and the feed-runs connected thereto at ten different speeds, and may readily mechanically disengage the intermediate gear 22 to discontinue operation of the feed runs as the machine disks are raised, or accomplish this result manually in the manner and for the 10d purpose described and in other circumstances.

I claim as my invention:

1. In a seeding machine, a driving axle, -a hanger pivotally mounted on the axle, a 1 5 gear-wheel supported by the hanger, gearing on the axle meshing with said gear-wheel, a feed-run shaft, gearing on the shaft meshing with the gear-wheel on the .hanger, a rock-shaft, and a link connecting the hanger and rock-shaft whereby when the latter is actuated said link will be projected or retracted and swing the hanger to disengage or engage the gear-wheel carried thereby with the gearing on the feed-run shaft.

2. In a seeding machine, a gear-wheelhanger, means for pivotally supporting the. hanger, a link connected at one end to the hanger, a slotted quadrant..means connecting the opposite end of the link to the quad-' rant whereby the link may move in its slot, and means engaging the quadrant for actuating the same to reciprocate said arm toswing the gear-wheel hanger in opposite directions. 1

In testimony whereof I aflix my signature.

- THOMAS BRENNAN.

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