US95139A - Improvement in corn-planters - Google Patents

Description

'Lm PHOTO-UTHOGRAPNER, WASHINGTON, D4 C.

y "'dbdted iatet Letters Patent No. 95,139, dated September 2l, 1869-.

i IMPROVEMENT IN CORN-PLANTERS.

The Schedule referred to in these Letters Patent sind making. part of the same.

To all whom 'it may lconcern l Be it known that I, WILsoN S. PURDEY, of Butler,

in the State of Indiana, have invented anew and use- `fnl Improvement in Corn-Planters; and I do ,hereby being thrown back, showing the upper compartment and partition A.

Figure 2 is a similar View, the central part of the partition A being broken away, so as to show the'axle and shaft D. Y

This invention consists ingproviding the orifices commonly made in .the bottoms ofthe seedboxesof'. corr-planters, with two sets of slides, one at the ltop` and the .other at the bottom, and so arranged that' those4 at the bottom remain closed, while those at the top are open, and tice versa, for the purpose of insuring the fall of a fixed and uniform amount of corn in each and every hill.

Toenable those skilled in the art to make and use my inventionI now proceed to describe its constructionand operation.

Similar letters in thedrawings refer to like parts.

In the drawingsff A is aV cubical box, placed upon two wheels, and

having a drivers seat on the cover, which is hinged at the rear side, so that it may be thrown back;

.The interior of the box is divided by a partitiomA, into two parts, whereof the upper part is the seed-box, which communicates, through two or more apertures 4 a a, with the seed-conductors'b l).

lhe apertures a a are closed at their upper ends by means of slides ma', which project laterally from a lat lever, c, lying along the bottom of the seed-box, and pivoted at its centre. 1

One-end of the lever c passes through a slot in the side ofthe box, and reaches beyondthe exterior thereof, SuiCiently far to lieiin the'path of the arm d, which projects from lthe shaft D. -The latter extends through the box A, parallel with the axle.

At its opposite'extremity, -the shaft D is connected with the main driving-wheel, by means of cog-gearing. rllhe motion ,whichthe shaftll) receives from thev driving-wheel, it communicates to the lever cof the seed-box, the arm d of thel shaft, thrusting the lever to one side as it revolves, until the arm slips by the end of the level', when the latter is immediately restored to its former position by means of va spiral spring on the outside of the box A, and at the opposite end of the lever fiom the arm (l, the lever projecting at this end, also, through a slot in the side of the box, similarly as at the other side.

The eect of the movement ot' the lever c, caused by the arm d, is to uncover the seed-apertures a a, which are closed again bythe action of `the spring.

The lower ends of the said apertures are kept closed during this time, by plates e, attached to the ends of the bent levers e, pivoted to the under side of the partition A.

The inner ends ot'- the bent levers e approach each other very nearly, and to Aboth of them at once is thc motion of the shaft D also communicated "by moans of the arm d', projecting from said-shaft in suoli a di-` rection that it does not come in Contact with the bent levers until the slides-a a have closed again over the upper ends of the said apertures, after having been displaced, as above described. rlhen it strikes the inner ends of the bent levers, and passes between them, displacing them, during its passage, to such anextent as to uncover the lower ends of the seed-apertures.

The arm having passed, the levers e are restored to their former position by means of spiral springs e".

' During the'displacement of thc slides a a', the seed enters the apertures, where it is retained by the slides e', at the bottom. l

During thc displacement of the latter, the seed is discharged from the apertures, and-none other is suifered to enter them, the slides af o' covering their upper ends.

By this arrangement a fixed and uniform quantity of seed is lodged in each hill, and no seed is allowed to fall anywhere else than in the hill.

What I claim as new, and desire to secure by Letters Patent, is

The shaft D, combined with the levers c c e, and slides a a', substantially as and for the purpose sct forth.

n WILSON S. IURDEY. Vit-nesses:

Guo. W. GARPENDER, WM.`M. CARR.`

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