US284858A - William h - Google Patents

Description

(No Model.)

W. H. JOHNSON. 001111 PLANTBR.

110.284,858.. y Pai-.811881188118 11,1888.

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UNITED Sra-TES PATENT OFFICE.

VILLIAM JOHNSON, OF STERLING, ILLINOIS, ASSIGN OR TO THOMAS A. GALT AND GEORGE S. TRACY, BOTH OF SAME PLACE.

CORN-PLANTER.

SPECIFICATION forming part of Letters Patent No. 284,858, dated September 11, 1883.

Application tiled April 25,1883. (No model.)

.To all whom it muy concern:

Be it known that I, VILLIAM H. JoHNsoN,.

a citizen of the United States, residing at Sterling, in the county of Vhiteside and State of Illinois, `have invented certain new and useful Improvements in Corn-Planters; and I do hereby declare the following to be a full, clear, and exactv description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or gures of reference marked thereon, which form apart of this specification. A

My invention has reference to corn-planters, and pertains more particularly to improvements inthe dropping mechanism thereof. As generally used, the dropping is done simultaneously from two seed-droppers drawn over the field in parallel lines. The dropping devices in and beneath each seed-hoppen are alike, and are actuated by the usual reciprocating connecting-bar,extending from one hopper to the other. Therefore I do not deem it necessary to show or describe the dropping devices of more than one of such seed-hoppers.

In the drawings, Figure lis a rear elevation of the dropping devices in their relative positions with the seed-hopper removed. Fig. 2 is a plan view of suchflropping devices in position with the cut-off plate S removed. Fig. 3 is a detached view of the reciprocating horizontal stirrup B, to the inner end, B, of which the ordinary transverse reciprocating bar which actuates the seeding devices is attached. Fig. 4 is a detached view of the pawl-arms D D and pawls T T. Fig. 5 is a plan view of the base-plate E, having affixed to its upper surface the circular seed-plate seat F. Fig. 6 is the circular seed plate G, having the spurs or lugs G.

H is the vertical tube or boot in the rear of thel seed-runner, in which, near the lower end thereof, is placed the horizontal shelf H.

.T is a rock-shaft, journalcd at its lowerend in the shelf H, and at its upper end in the base-plate ofthe seed-hopper. Theback of the rock-shaft J forms the back of the tube H, and such shaft is oscillated laterally by means of a crank projection, I, at its upper end, placed in a clutch, L, formed on the rear edge ofthe reciprocating stirrup B. A vertical partition is formed on the front side of the rock-shaft J, which has the effect of dividing the tube H vertically into two chambers.

. E is the base-plate of the seed-hopper, to the upper side of which is rigidly affixed the circular seed-plate seatvF. A hole, K, in the latter two plates communicates with the upper end of the seed-tube H. The short post M extends upward from the plate F, and furnishesV the pivot for the arms D D and seed-plate G.

T T are pawls having their respective stems piyotally attached in a vertical plane to radial paWl-arlns D D, which latter are bent inwardly at right angles, and the inner ends thereof pivoted on the center post, M, under the seedplate seat F, thelatter being placed sufficiently above the baseplate E to permit the inner ends of the arms D Dto oscillate horizontally between such plates E and F. The pawls TT are hinged, as aforesaid, so as to rise in receding over the spurs G on the seed-plate G. The outer end of each arm D D is pivoted horizontally to the short posts O, formed on the upper side of the stirrup B, which connection is formed by means of a transverse horizontal slot, a, inthe outer ends of the arms D, in which the posts O play, and which slots permit the outer ends of the arms D to move in an arc, as hereinafter explained. The pawls T T operate of course in opposite directions and at opposite sides ofthe seed-plate G. The latter is the usual annular seed-plate, pivoted on the central post, M, and having the spurs G on its periphery and the annular series of seed-cups G.

B is a horizontal stirrup reciprocated by the usual connecting-bar, attached to such stirrup at B. The stirrup B is provided with the stopsv I), which engage the spurs G when the seed! plate G has been sufficiently revolved for one action, and hol d such plate until the next action. S is the ordinary cut-off plate,placed over the seed-plate G in the bottom of the seed hopper, and provided with the cut-off S.

The purpose of my invention is to secure at cach movement of the reciprocatingstirrup B a full action of the seed-plate (3f-thatA is, that the seed-plate shall be so far rotated at each of such actions that one of the seed-cups Gshall pass under the cutoff S and discharge its contents through the hole K into the seed-tube H.

In former modes of rotating the seed-plate G the devices actuating the same moved in straight lines, While the periphery of such plate traversed a circle. 'This rendered it possible for the actuating device to slip past the vendvof the spur or lug on the seed-plate before the latter was suiciently rotated, particularly after the ends of such lugs had been Worn by the repeated passages of the actuating paWls or projections.

In my invention, by pivoting the fixed ends of the radial arms D,Which carry the pawvls T, on a center common with that of the seedplate G, the free end of the paivl ino'ves in the saine circle with the spurs orlugsfG on ,the periphery of such seed-plate, and thus foll'vY such spurs in their orbit to the lirnit of each action. There is V therefore no possibilityof such paWls failing iii any instanceto actuate 4the seed-plate to the full extent of their stroke. Y

The operation of my invention is obvious.` A t each actionof the stirrup B the free endo'f oneof the pawls T engages one of thefspuis G of the seed-plate G, and rotates the latter brietenth of a revolution. On the reverseaction of the stirrnp B the opposite pav'vl 4engages,the opposite side of such seed-plate With like effect, the iirst-nan1ed pawvl being ineaiiivhile with, drawn to its original position'. ,l Each of such actions passes one seed-c`upI `filled with 'seed under the cut-off S', and discharges such seed through the hole K down :one of the chainbeis of the tube H upon the shelf H.. Eachactibn of the stirrup B gives an oscillation to the rock-shaft J and the latter at 'each oscillation, by means of its vertical partition aforesaid, presents a new chainber under the hole K, and

sweeps from the shelf H the seed deposited thereon at the next previous drop. The diameter of the hole K is equal to the Width of pawls T T, borne, respectively, on radial arms D D, the inner ends of which latter are pivoted to a center common to that of the rotating seed-plate G, substantially as shown, and for the purpose described.

2. In a corn-planter, the pawls T T, having the movement of their outer or engaging ends in an arc, Ain coi'nbination with the seed-plate G, having the spurs G', substantially as sliown and for the purpose mentioned. l i

3. In corn-planter, pa lls T T,bo"1"`1l`e 'on radial arrnsD D, pivoted at the center of inotion of theseed-plate G, in combination with such seed-plate,substantially as shown, and for the purpose specied. I l 4. The coinbination, in a corn-planter, of ther parvis T T, Vradial arnis D D, stirrup B, aidseed-plate G, substantially as shown, and for the purpose described. A l

5. The combination of the alternately-actin g vawls T T having a )ivoted connection on P 7 .e l

theciter post, M,`se`edpla` te G, pivoted on such post, stirrup. B, post M, tube H, rockshaftuJ, yand cut-off S, substantially as shown, and forthe purpose herein named. v In testimony whereof I aiX my signature in presence of tivo Witnesses.

VILLIAM H.

V'Vitnesses B. HUBBARD, VALTER STAGER.

JOHNSON.

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