US353452A

US353452A - Check-rower

Info

Publication number: US353452A
Authority: US
Publication date: 1886-11-30
Anticipated expiration: 1903-11-30

Description

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- E. M. HBYLMAN.

CHECK ROWER.

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UNITED lSTATES PATENT OEEICE.

EDV'VARD M. HEYLMAN, OF PEORIA, ILLINOIS.

CH ECK-ROWER.

SPECIFICATION forming part of Letters Patent No. 353,4:52I dated November 30, 1886.

` Application filed March 29, 1886. Serial No. 196,916. (No model.)

To all whom. it mui/y concern:

Be it known that I, EDWARD M. HEYLMAN, of Peoria, in the county of Peoria, State of Illinois, have invented an Improved Check- Rower; and I do hereby declare that the following is a full, clear, and exact description thereof.

This invention is in theline of check-rowers in which horizontally-swinging bifurcated le* vers pivoted to the extremities of a transverse beam 'xed over the seed-boxes of a' cornplanter communicate, when oscillated, an intermittent reciprocation to the feed-slide of the planter; and myinvention pertains,mainly, to the construction of a new center movement to be actuated by the bifurcated levers.

In the accompanying drawings, Figure l is a perspective view of my center movement, together with one bifurcated lever and connections and a portion of the transverse beam and feed-slide; Fig. 2, a plan view of main body of the center movement, and Fig. 3 a sectional view of same atxmin Fig. 2; Fig. 4, a sectional View of modified crank-arm.

T represents the transverse beam, which is usually fixed to and over the seed-boxes of the corn-planter. V

S represents the feed-slide, Whose reciprocation actuates the seed-disks of theseed-boxes.

R is one of the cross-beams of the planter.

L is one of the bifurcated levers pivoted to the cross-head L' at one end of the transverse Vbeam T. The lever G, centrally pivoted to the transverse beam T, is connected at its ends with the bifuroated levers L by meansof the rods K, and said levers are adapted tooscillate the lever G, each independently of and not affecting the other, by the elongated hooks K', sliding loosely on the buttons G', formed on or cast as a part of the lever G. The points of said hooks K' can be connected to the body of each rod, if desired, forming a longitudinal slot for the play of the buttons" G; but I prefer the simpler hook form, as Well over this as over the other arrangements for the same purpose-as, for instance, passing the rods K through holes in said buttons and having heads at the ends thereof.

The center movement consists of the V-cam A, having vertical shaft C, provided With the crank-arm M, connected with the feed-slide S.

Said V-carn is mounted in the case D, having the central passage, D', and inclines D2 terminating abrupt-ly at said passage, and the side walls of said case are concentric with the shaft C. The V-faces of the V-cam A terminatein the hooks B, although said hooks are not absolutely necessary, the object thereof being mainly the prevention of friction between the V-cam and case and the cam-operating iinger hereinafter described.

Pivoted to the end of the lever G is the rod E, provided at its free end with a finger, E', usually given a friction-roller, designed for actuating the V-cam A.

From the crank-arm M, projecting from the lower end of the oscillating shaft C, extends the connecting-rod Nto the adj usting-block S', secured to the feed-slide S, and pivoted to said block and to a fixed frame-beam, R, is the toggle-joint P, having the tension-spring P2, connected to the said joint and to some fixed.

point, as the offset-plate R'. This togglejoint' is so arranged that the three pivotal points thereof and the fixed point of attachment of the tension-spring form a curve convex toward the feed-slide S; hence when the feedslide is moved the bar P of the toggle-joint pushes the bar P' against the tension of the spring P2 about its pivotal point until past lining with said spring, when the latter by its tension forces the toggle-joint and the feedslide into the opposite position. The force of the spring is sufficient to hold the feed-slide from any movement-,except such given thereto by the check-rower mechanism, and therefore forms an effective lock for the feed-slide.

In the operation of my checkrower the-oscillation of the bifurcated lever L at either end of the transverse beam T similarly moves the lever G. The nger E', advancing toward the -V-cam A by the rod E,-connected to said lever G, rolls along one of the V-faces B' until it meets the hook B, when the same is compelled to move with it to the end of its stroke. This part turn of the V-cam oscillates the shaft C and its crank-arm M, thereby giving one desired movement to the feed-slide S. The bifurcated lever L and lever G are then returned to their original positions by means of hereinafter-described springs, and the finger E' slides up on the incline D2 to the abrupt termination roo 'tral passage, D.

thereof, where said finger drops into the cen,

By thepart turn of the y\./ cam the V-point thereof is in line with the abrupt termination of the incline over which saidiinger has just passed; hence at the next stroke of the bifurcated lever said finger E is guided to the opposite face of the V-cam A, and is made to give thereto an opposite part turn to that previously described and the feedslide an opposite stroke.

The` only object in having the inclines D2 is to prevent the finger E from by any means getting to the wrong side of the V-point of the cam, and the same could be dispensed with without greatly impairing the working of the check-rower. Only when working upon rough and extremely uneven ground could there be danger of the finger E engaging with vthe wrong face of the V-cam A when the inclines D2 were not employed.

Y The details of my invention which have not previously been described are as follows: To return the bifurcated lever L to its orignal position after its displacement by the knots of the check-wire, I form the same with a cylindrical hub about which Iwrap acord or chain attached to the'spiral spring J, suitably anchored. Previously to this arrangement it has been customary to connect the spring J to an arm of the lever L; but by attaching the spring to a iexibleconnection enwrapping a cylindrical hub of the lever the tension on said spring is decreased Without diminishing theeffect thereof on the lever. In the same way I form thelever G with a hub, GZ, about which passes the chain J', connected to the spring J, anchored to the transverse beam T. Since the lever G is connected with the bifurcated lever by the rod K,

Ythe bifurcated levers are usually not provided with said spring J, that on the lever G serving for both.

As shown in Fig. 2 and 3, the hub of the lever G and the bearing D4 therefor are made with radial stop-shoulders G3 D5, to keep said lever from oscillations too far, or a greater distance than required. The lever L and the cross-heads L' are also furnished with similar stop-shoulders.

As shown in Fig. 1, the forward sheave L'l is inclined downward outwardly, and the rear sheave Lvz is inclined downward inwardly, so that as the wire is in place in these sheaves it shall not slip therefrom. To further decrease such liability, I increase the diameters of the upper fianges of said sheaves relative to the diameters of the lower flanges-that is, the flange L3 is largerthan the fiange L4 of each sheave.

As lshown in Figs. 2 and 3, the case D and the bearing-plate D3 of the, lever G are rigidly connected by casting them integrally with the `joining-web D. The offset-finger F, cast with said web D2, is designed to project over the rod E and keep the finger E from jumping ont from the case D.

In the drawings, the central passage, D', is shown prolonged beyond the circular face of the case D. I often, however, dispense with this extension, having such face unbroken. This requires the stroke of the rod E Ato be shortened somewhat, but does not affect the workings thereof materially.

The lower end of the shaft C is supported in the bearing-bracket C2, bolted to the under side of the transverse beam T, and the crankarm M is secured to the end of said shaft by having the split socket M2 compressed by the. set-screw M3. The said crank-arm islengthened orshortened to adjust the s troke of the feed-slide by forming said arm in the three parts consisting of the arm M proper, projecting rigidly from the socket M2, and the slotted sleeves M4, secured to said arm M by a bolt passing through said slots, and having the rod N pivotally held at their outer ends. To cheapen this crank-arm, I usually cast the sleeves M4 with a vertical pin-hole at the end of each, and form the rod Nwith opposite lugs or pintles adapted to enter said pin-holes.

In Fig. 4 is shown a modified construction of my crank -arm M. In place of the two sleeves above mentioned,l have asingle sleeve, M4, having the pin-hole M5 in an offset portion thereof, and provide the arm M with the slot M6. The rod or pitman N, having a single lug or pintle, N', entering said pin-hole, and the bolt M7, clamping together the sleeve Mi and the arm M', the pitman N is held with the required facility for changing its stroke.

I am aware that prior to my invention a rotating vertical shaft has been employed for operating the feed-slide of a corn-planter; but I am not cognizant of the previous arranging of a vertical rocking or oscillating shaft having a crank-arm and pitman connection to the feed-slide. This device for transmitting the oscillations of a center movement to the feedslide is a very important invention, as it is an extremely cheap, simple, and' durable means for doing the work desired.

, If the finger F be made elastic and adapted to impress the rod E slightly, the said cam and case can be located in a vertical plane. In this position, however, the mechanism for enabling the cam to actuate the feed-slide wouldy have to besomewhat more complicated than the present, and on that account the position shown is preferable. V

By having my lock connected directly to the feed-slide S whatever loss of motion there is in the check-rower mechanism is not permit ted to affect the slide, since in the last partof the stroke thereof the spring P2 of the lock throws said feed-slide to its place, even ahead of the movement of the check-rower.

I am aware thatprior to my invention checkrowers have been constructed in which a centrally-pivoted lever has been employed, with the connecting-rods from the bifurcated levers attached to its ends; hence I do not claim the same, except in combination with such rods connected therewith in the manner shown.

What I claim as my invention, and for which I desire Letters Patent, is as follows, to wit:

IOO

, the feed-slide, of the vertical oscillating shaft,

the crank-arm projecting from said shaft, a sleeve adjustably secured to said crank-arm, and thepitman connecting said sleeve and feedslide, for the purpose set forth.

3. In a check-rower, the combination of the case D, the V-cam A, the shaft C, the crankarm M,and the rod N, as and for the-purpose specified.

4. In a lock for a reciprocating bar, the tog- Y gie-joint pivoted to said bar and a fixed point and having a tension-spring connected thereto and to another fixed point, substantially as and for the purpose specified.

5. The combination,with the fe ed-slide of a corn-planter, of the toggle-joint, the fixed ofi"- set-plate, and the tension-spring connecting said togglej oint and offset-plate, as and for the purpose set forth.

6. The combination, with the bifurcated levers of a check-rower, of the centrally-pivoted lever G, rods connected to said levers and with said lever G, the rod E, having finger E', and pivoted to said lever'G, the V-cam A, oscillated by the reciprocation of said uger, substantially as described, and means for actuating the feed-slide by said oscillations.

7. The combination, in a check-rower, of the bifurcated levers, the centrally-pivoted lever G, rods pivoted to said bifurcated'levers and loosely connected to said lever G, the rod E,

connected to said lever G and having finger E', the V-cam A, the case D for said V-cam, the vertical shaft C, on which said V-cam is mounted, the crank-arm M, and the connecting-rod N, joining said crank-arm to the feedslide of a corn-planter, substantially as set forth.

8. Ina check-rowenthe combination, with the V-cam, of the case D, plate Df, web D, joining said case and plate, the finger F, proj ectin g from said web, the stepped bearing D", formed on the plate D3, and the lever G, having stepped hub G3, as and for the purposes set forth.

` 9. In a check-rower, the combination, with an oscillating lever having a cylindrical hub, of a tension-spring suitably anchored, and a flexible connection wrapped about said hub and joined to said spring, for the purpose set forth.

10. In a check-rower, the combination,with

a bearing having stop-shoulders D5, of the oscillating lever having its hub provided with corresponding stop-shoulders, G3, as and for the purpose set forth.

11. In a check-rower, the combinatiomwith the shaftfof the arm M', having split socket M2 and a clamping-bolt, and the slot Min said arm, the sleeve M4, having pin-hole M5, the rod N, havinglug N'` and a clamping-bolt, for the purpose specified.

In testimony that I claim the foregoing invention I have hereunto set myhand this 26th day of March, in the year 1886.

, EDWARD M. HEYLMAN.

Witnesses:l

H. W. WELLs, A. B. UPHAM.