Improvement in seed-planters
US 13551 A
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PLUMMER & .ROLLINS.
No. 13,551. Patented Sept. 11,1855.
N. PEr s, PMOTQ-LIINOGRAPHER. WASHINGTON u C UNITED STATES PATENT OFFICE.
E. PLUMMER AND G. B. ROL LINS, OF MANCHESTER, INDIANA.
IMPROVEMENT IN SEED-PLANTERS.
Specification forming part of Letters Patent No. 13,55I, dated September 11, 1855.
To all whom it may concern:
Be it known that we, FREEMAN PLUMMER and GILMORE B. RoLLINs, both of Manchester,
county of Dearborn, in the State of Indiana,
have invented a new and IIIIPIOXGC] Machine for Planting Corn and other Grain or Seed; and we do hereby declare that the following is a full and exact description thereof, reference being bad to the annexed drawings, and to the letters of reference marked thereon.
' Our improvement consists in devices whereby the automatic measuring and dropping of the seed are effected with great certainty and regularity.
' In the annexed drawings, Figure 1 is a top view. Fig. 2 is adetached view of the hopper bottom and appendages. Fig. 3 is a detached view of the enjoined striking and dropping plates.
To draft-beam a are hinged two equal beams,
b 0, upon which, near their rear ends, are placed the hoppers d. The bottom 0 c of each hopper is slotted to admit a plate,f, having at its inner end a semicircular notch, which, in conjunction with asimilar notch in another plate,
f, or in the hopper-bottom, constitutes a circular aperture, 70, which is our device formeasuring and dropping the charges of grain, and of which 9 is a plate thatwhen drawn to a given point forms a temporary bottom to the measuring-cup. The striking-plate h is so fixed to the dropping-plate as when the aperture 7c is closed at the bottom itis opened at the top, and vice versa. When the striking-plate is drawn over the aperture it it simultaneously brings the aperture i in the dropping-plate under the aperture is in the hopper-bottom, and thus discharges the grain as measured in the aperture This aperture is, with its sliding bottom, we call the seed-cup. The piece formed by the two plates 1 and h is pivoted to the hopper at j. The plate or plates f f, which fornrthe sides of the cup, are held in position by the springs l, but in case of clogging are capable of being slid out temporarily the tappet p, temporarily advance the rod q,
which in its turn acts by means of suitable links, 1' r, and rods 8 s to vibrate the plates h 0, Immediately upon the escape of the tappet a spiral spring or its equivalent, (shown bydotted lines,l t, retracts the rod. When it is desired to drop by hand the last described mechanism is displaced by rodsu 1;, extending from the respective plates h to a vibrating handle, to. A spring,a;, keeps the said handle to place, except when voluntarily vibrated, and when the automatic action is employed the vibrat ing handle is held stauch by a button, y. z is an extensible brace for extending or contracting at will the track of the flukes. In order to enable the automatic mechanism to be accommodated to the diti erent widths of track, the rods 8 are made extensible, as shown.
We claim. as new and of our invention, and desire to secure by Letters Patent- Links 1'1, in combination with the adjustable rods 8 s, when constructed and arranged in the manner and for the purpose herein set forth.
In testimony whereof we hereunto set our hands before two subscribing witnesses.
FREEMAN PLUMMER. GILMORE B. ROLIJINS.
WILLIAM TIBBETTS, SARAH E. OLAsPILL.