US1583118A - Grain drill - Google Patents

Description

GRAIN DRILL 2 She ts-Sheet i -V W W'Ih 54 53 55 I W. L. BRALEY ET AL Filed March 28. 1923 Mai 4, 1926.

w. L. BR ALEY ET AL.

' GRAIN DRILL Filed Marqh 28, 1923 2 Sheets-Sheet 2 Patented May 4, 1926.

lssaua UNITED STATES PATENT-OFFICE.

WILLIAM L. BRALEY AND HENRY N. FAAS/OF SPRINGFIELD, OHIO, ASSIGNORS TO THE AMERICAN SEEDING- MACHINE COMPANY, OF SPRINGFIELD, OI-IIO,.A COR- IORATION OF OHIO.

GRAIN DRILL.

Application filed March 28, 1923. Serial No. 628,363.

To all whom it may concern: I

Be it known that we, WILLIAM L. BRALE'Y and HENRY N. FAAS, citizens of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Grain Drills, of which the following is a specification. v v

This invention relates to improvements in grain drills, it more particularly relating to drills employed for drilling between the rows of standing corn'in which there is employed a pair of rear ground wheels and a single front wheel mounted to rotate upon a vertical axis.

The object of the invention is to improve and simplify the devices for driving the feeding mechanism; a more specific object in this connection being to utilize the usual furrow opener lifter shaft for the purpose of carrying certain of the power transmission mechanism which forms a part of the driving devices thereby eliminating the necessity of an extra counter-shaft for that purpose.

In the accompanying drawings:

Fig. 1 is a view in perspective of so much of a machine as necessary to illustrate the improvements.

Fig. 2 is a side elevation of the front carrying wheel and the parts which connect it to the main frame.

Fig. 3 isa vertical section of a portion of the parts shown in Fig. 2.

Fig. 4 is a section on the line 4-4 of Fig 2.

Fig. 5 is a rear elevation of the machine with the furrow openers omitted.

Fig. 6 is a perspective view of a portion of the lifter shaft and sprocket wheels which forms a part of the driving mechanism for the feeding devices.

Fig. 7 is a longitudinal section of the Same.

Fig. 8 is a section on the line 88 of Fig. 7.

Referring to the drawings, 1 and 2 represent the two side members of the main frame, the forward ends of which converge and are bolted to diverging wings 3 of a head 4, the two wings being connected together by strengthening web 5. This head 4 is formed with a vertical bore to receive the vertical spindle 6 which has integrally formed therewith the downwardly and rearwardly curved yoke arms 7 in the lower ends of which is mounted the forward carrying wheel 8. A forwardly extending arm 9 is secured to the upper end of the spindle 6 by the bolt 10 and this arm .9 together with the integral collar 11 hold the spindle and head together. The forward end of the arm 9 is provided with an aperture 12 to which the usual hitch devices are secured. The rear ends of the frame members 1 and 2 have downwardly projecting strips or brackets 13 in the lower ends of which are mounted in the usual way the shaft or axle 14 of the rear carrying wheels 15 of comparatively small diameter, usually not exceed ing twenty inches. A rock shaft 16, preferably square in cross-section, is journaled in the arms 17 which are suitably supported from the braces 19 011 the main frame, there being provided bushings 20 of well known form for this purpose. This rock shaft carries lifter arms 21 of the usual kind to lift the furrow openers 22 through the lifter rods 23 and apply pressure thereto through the springs 23. The inner furrow openers are connected by the drag-bars 24: with the draft rod 25, carried by the cross member 26 which ties together the side frame members 1 and 2, while the outer furrow openers are pivotally connected by the drag-bars 27 with the heads 28 which in turn are connected by vertical pivots with straps 29 secured to the side frame members adjacent the wings 3. y

A. hopper 30 is supported from the brace members 19 at the rear and also by braces 31 at the front and it is further braced by the rods 32 extended to and connected by a bolt with the web 5. The feed shaft for the feeding devices is indicated at 33, this shaft extending through and being connected with the feed wheels in the usual feed cups 34 and provided with a sprocket wheel 33' about which passes the sprocket chain 35, which also passes about the sprocket wheel 36 which is loosely mounted upon a sleeve 37 secured to the rock shaft 16. A collar 38 is secured to the shaft 16 by the set screw 39. while another collar 40 formed integrally with the sleeve 37 is secured to the shaft 16 by the set screw 41. The sprocket wheel 36 as well as another larger sprocket wheel 42 are confined between these two collars. the hubs of the sprocket wheels having clutch faces 36 and 42 to cause the wheels to rotate together. The larger sprocket Wheel 42 is driven from a sprocket Wheel 43 loosely mounted on the axle 14 through the chain 44; the Wheel being driven from the axle by a clutch (not shown). Provision is made for disconnecting the sprocket Wheel 43 from the axle 14 by a cam 45 which operates upon the sprocket Wheel 43 to throw it out of engagement With the clutch againstthe tension of the spring 46 Whenever the shaft 16 is rocked to lift the furrow openers. A lever 47 connected with the rock shaft and having a pawl which cooperates with a toothed segment 48 serves-the purpose of rocking the shaft 16 and holding the furrow openers in elevated position, While a link 49 connected with an arm 50 on the rock shaft and with an arm 51 on the ca m acts to rotate the cam to disconnect the sprocket wheel 43.

By having the sprocket Wheels which form a part of the driving mechanism for the feeding devices mounted upon the lifter shaft instead of upon a separate countershaft the construct-ion is not only cheapened and simplified but also strengthened because Where a counter shaft has beenemployed it has been necessary to mount the countershaft on brackets Which are secured to the Wooden hopper bottom which has not proved to be a very substantial support whereas in the present constru-ction'the rockshaft may be substantially mounted on the main frame, thus providing a rigid support for these sprocket Wheels.

Having thus described our invention, We claim:

In a machine of the character described,

a main frame,- a hopper, a feed shaft sup-- ported on the under side of said hopper-in close proximity thereto, a furrow-opener lifter shaft supported by said frame in parallel relationwvith said feed shaft, an

axle, comparatively small ground Wheels to Whichsaid axle is connected, and mechanism fordriving said feed shaft from said axle comprising speed reducing transmission devices supported on said lifter shaft.-

In testimony whereof, We have hereuntoset our hands this 26th day of March 1923;

VVILLIAli/i L. BRALEY. HENRY N. FAAS.

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