US283621A - Corn-planter - Google Patents

Description

(No Model.) 2 Sheets-Sheet 2.

L. H. LETZ.

CORN PLANTER. v

Patented Aug. 21, 1883.

1; A u lglTlE INVENTOR ATTORNEY WITNESSES u PETEns. Hmwuun n mr. \Vnhinglon. D. c

ing had therein UNITED STATES PATENT Fries.

LOUIS IIOL LAYD LETZ, OF CHICAGO, ASSIGNOR OF ONEHALF TO JOHN SCHRUM, OF DOLTEN, ILLINOIS.

CORN-PLANTER.

SPECIFICATION. forming part of Letters Patent No. 283,621, dated August 21, 1883.

Application filed Mzi'y 3, 1883. (No modelJ ing at Chicago, in the county of Cook and State of Illinois, have invented eertain'new and useihllmprovements in Corn-Planters, of which the following is a specification, reference beto the accompanying drawings.

This invention relates to the class. of cornplanters that have sled-runners to open the furrows, seed-boxes that drop the corn'at proper intervals into such furrows, which are then closed again by wheels passing over the furrows. Such a machine generally consists of two sections, the frames of which are pivotally-coupled, the forward section having the rigid pole for hitching the horses, the sledrunners for opening the furrows, and behind these and in line therewith the seed-boxes, while the rear section consists of a two-wheel truck that has a seat for the driver and 1e vers for controlling the operation of the ma chine.

My invention particularly relates to devices for automatically operating the seed-box slides, and for marking the spots for the next adjacent parallel rows to be planted, which devices are attached to the hind truck and driven by the traction of the truck-wheels. I have in the drawings only shown the rear sec tion or truck of the corn-planter, the fore part of the machine being of the usual construction.

My invention consists of the novel devices and combinations of devices hereinafter de scribed and specifically claimed. 7

In the accompanying drawings, Figure 1 rep resents a plan view of thehind truck of a cornplanter having my attachments. Fig. 2 represents a front elevation of the same. .Fig. 3 is an elevation of the crank-disk and vibratable arms. Fig. 4. is a front view of thecrank oscillating mechanism; Fig. 5, an elevation of the fulcrunrbracket for the oscillating crank and vibratable arms. Fig. 6 is an elevation and sectional edge View of the friction-coupling. Fig. 7 represents a rear elevation of the coupling lever and sleeve; Fig. 8, a sectional elevation of one setv of corn-marker arms, and Fig. 9 an end elevation of one of the V brackets.

Corresponding letters in the several figures of the drawings designate like parts.

The beam A has secured against its bottom the axle, upon the ends of which are journaled the hubs of truck-wheels B B, that have broad rims, and are intended to pass over the furrows after the corn is dropped therein, and to close the same, and one of these wheels, B, has

' secured to its hub a sprocket-wheel, a.

Upon the axle-beam A are secured two longitudinal beams, O C, which at their rear ends are connectedby a cross-beam, D, and upon the front ends of beams O C is rigidly secured a cross-beam, E, the ends of which project be yond beams C O.

To the under side of beam E are secured two hanger-bearings, Z), that carry shaft F, and upon this shaft Fis loosely sleeved a sprocketwheel, G, which, by an endless chain, H, is driven from sprocket-wheel a. of traction-wheel B. This sprocket-wheel G has a projecting rim to one side, the inner surface of which is turned to be true, concentric with the bore of the hub of such wheel. Inside of the rim of wheel G is rigidly mounted upon shaft F a hub, R, that has two diametrically-opposite arms. To the endof each such arm is pivotally secured by ascrew, c, a pawl, (Z, that has an eccentrically-faced end, which is turned against the interior surface of the rim of sprocketwheel G by a spiral spring, 0, and has a curved arm that extends toward the center of wheel G past shaft F, in such a manner that the arms of 7 both pawls d are at opposite sides of such shaft.

Asleeve, f, that has a conical or spherical end, is bored to slide upon shaft F, and by a link, g, is coupled to the end of lever I, that is pivoted to the depending bracket 71, secured to beam E. This sleeve, when pushed by lever I toward hub R, will enter between the arms or pawls 2, and will turn their eccentric faces away from the internal surface of the rim of sprocketwheel G, so as not to come in contact therewith; but when shifted away from hub B it will release the pawls d, the eccentric faces of which will then turn against the rim of sprocketwheel G- in a manner that the shaft F will be locked with such sprocket-wheel to rotate therewith while the machine is moving for ward, but to slip and have no hold with a rearward motion of the same. Upon shaft F is 2' asaeai' also rigidly mounted a disk, J, having a crankplate 70 is pivotally secured the end of a vibratable' arm, i and z", and these arms t 'i are coupled together in their middle by a link, 3, in a manner that they will vibrate simultaneously. The swinging ends of these arms will alternately be brought in contact with the rotating crank-pin sof disk J, that with pushing one arm, 2', inward the other arm, i, will be swung outward, and vice versa, in a manner to vibrate such arms alternately at uniform intervals. The armi has a projecting stud, Z, that engages with a notch of crank L, pivoted to a hub projecting from the forward end of bracket K in a manner that the alternate vibrations of arms m will transmit an intermittent oscillating movement to such crank L. This crank L, by suitable connections, is to be coupled with the slides of the seed-boxes, to open and close the same with each oscillation.

To the ends of shaft F are coupled, by universal joints m, shafts M, which are supported in V-brackets n, that are secured to the ends of I ets are coupled together by a spiral spring, 0,

that will push such bars 0 0 out to their limited full extent, and will allow either 'one to yield to an end-pressure. With this arrangement the arms 0 0 not only will accommodate themselves to the undulations of the ground, but with any more serious obstruction the shaft-extension M will yield also, so as to illsure perfect safety of theseparts against breakage. As the machine passes over the field the ends of arms 0 0 will make impressions in the ground, that will be the guide for the machine to plant the next adjacent rows of corn. In case the corn-marker arms 0 O are not required, as with the last rows of corn to be planted, or while the machine is transported to or from the field, they can be raised and locked in an elevated position by pin g, passed 5 5 through a hole in V-bracket n.

The position of lever I is such that the driver can operate it from his seat, and thus can start and stop the rotation of shaft F, that operates the seed-box slides markers.

The devices described and shown are simple in their construction and reliable in their operation.

I am aware that itis not new to employ in corn-planters an axle divided into three parts the sections of which are connected by'universal joints, the object being to allow the wheels to accommodate themselves to the inequalities of the surface; and I am also aware that it is old to employ in such devices yielding rods to mark the ground, and therefore I do notclaim those features, broadly.

What I claim is 1. In a corn-planter, the sprocket-wheel G,

sleeved upon shaft F, and having a projecting rim, in combination with the two-armed hub R, rigidly mounted upon such shaft, and having eccentrically-faced pivotal pawls d, and

springs c, and with conical sleeve f, coupled with lever I, all substantially as described, to operate as specified. i

2. In a corn-planter, the disk J, with crankpin 8, rigidly mounted upon shaft F, in combination with bracket K, vibratable arms 2' i,

connected by link j, and with notched crank L, all substantially as and for the purpose described, to operate as specified.

3. Ina corn-planter, and in combination with the shalt F, the auxiliary shafts M M,

and markers 0 0, said shafts M M connected to shaft F by universal joints m, and supported in V-shaped brackets a, substantially as describedand shown.

4. In a corn-planter, the combination, with shafts F M M, connected by universal joints, as described, of springs 19, brackets 0, 0, and markers 0 .O, the marker 0 being slotted, as described, and for the purpose set forth.

I11 testimony whereof I aiiix my signature in presence oftwo witnesses.

LOUIS HOLLAND LETZ.

WVitnesses:

LOUIS NOLTING, ADAM GEO. WHITE.

and carries the corn-plant 6o

Images