US150294A - Improvement in hand corn-planters - Google Patents

Description

v I. s.- COR-Y. Hand Co rn-PIanters.

' 150 294. PatentedApril28,l874.

NITED STATES PATENT OFFICE;

IsAAc s. com, or DALTON, INDIANA.

IMPROVEMENT IN HAND CORN-PLANTERS.

Specification formingpart of Letters Patent No. 150,294, dated April 28, 1874; application filed February 9, 1874.

To all whom it may concern:

Be it known that I, lsAAo S. CORY, of Dalton, Wayne county, Indiana, have invented a new and useful Hand Corn-Planter, of which the following is a specification:

My invention relates to improvements in the class of seed-planting devices which comprise abox or hopper having within it a sliding plunger, provided at its upper end with a handle, by means of which the implement is shifted from hill to hill, and by which said plunger is driven into the ground, so as to bury at each stroke the proper modicum of seed. My improvements comprise the following instrumentalities: A catch or detent, whereby the plunger is automatically retained to its upper and inoperative position at the termination of each return stroke, and until voluntarily released by the operator, said detent being connected by lever to the seed-slide, so as to make the motion of the latter synchronous with and dependent upon the former, thus insuringa deposit of grain at each descent of the plunger; an arrangement of parts whereby the seedslide is made detachable and reversible; a form of passage in slide which removes the liability to cut or injure grain.

Figure 1 is a perspective view of my improved hand corn-planter, the operating-lever of the seedslide being shown engaged under the shoulder of the plunger. Fig. 2'is a vertical section of the same at the line X X. Fig. 3 is a perspective view of the planter, the seed-slide lever being shown disengaged from the plunger and the latter depressed. Fig. 4 is a vertical section thereof at the line Y Y. Fig. 5 is a perspective view, showing the rear side of the planter with its accompanying yieldin g jaw detached from the implement. Fig. 6 is a horizontal section at the lines Z Z and Fig. 7, an enlarged vertical section through the seed-slide and its accessories, the slide being in the same position as represented in Figs. 3 and 4.

The box A, slide B, diaphragm 0, cutoff D, and plunger E are, or may be, except in particulars hereinafter explained, identical with those in use in the \Vakefield planter. My box is perforated on two opposite sides with two rectangular apertures, a a,

at slightly different heights, for the reception of the slide B, which is thus held to a somewhat inclined position, as shown, and to which, of course, the diaphragm O conforms. The pocket I) in the slide and the discharge-passage c in the diaphragm are reversely oblique, as shown in Figs. 2 and 7. The object and effect ofthis compound obliquity are to avoid the nipping and choking of grain in its descent through the slide. The cut-off D is provided with a rubber pad or cushion that bears upon the upper surface of the seed-slide B, as more clearly shown in Fig. 7 The slide B has notches, b b, for the engagement of a lever, F, which is held in its normal position by means of a spring, G, and whose upper extremity, when in that condition, engages under a shoulder, H, on the plunger side, and thereby holds said shoulder to its uppermost position, as shown in Figs. 1 and 2, thus serving as a detent for said plunger. The lever E is hinged to the partition S at f. I is a trigger, whereby the said detent may be dis engaged by the operators forefinger, so as to release the plunger and to allowit to descend.

By depressing the spring G the lever F can be disengaged from the slide, and the latter can then be withdrawn and reversed or replaced, as desired. Projecting perpendicularly and rigidly from the bottom of the box is a spade or cutter, J, which operates to cut the ground and penetrateor displace any opposing clod, stalk, or other body, that might otherwise prevent the descent of the seed and its proper lodgment in the ground. Opposed to the spade J is a spring jaw or check, K. The upper end of this yielding jaw is secured to the rear side of the box, as shown in Figs. 4 and 5. Projecting sidewise from the lower end of box A is a foot, L, whose office is to prevent the penetration of the box itself into the ground. Just above the foot L the boxside is furnished with a scraper, M, and an aperture, N, for the removal and discharge of any dirt or trash that may adhere to the plunger. The stop 0 is provided with rubber cushions, P, to take off the jar of contact, and serves, in conjunction with slot Q in boxside, to limit the upward and downward strokes of the plunger. B R are blocks which confine the lower end of the plunger to a vertical path. Extending from the top of the box A down to the under side of cut-off D d is a partition, S, that prevents seed C0111- ing in contact with the plunger E. It Will be seen that by releasing the lever F f, the slide may be drawn out, and if worn on one side may be reversed end for end.

I am aware that an oblique aperture has been proposed in a horizontal diaphragm, and I, therefore, do not claim such an aperture, save in an oblique diaphragm and in combination with a corresponding reversely oblique passage in the slide 5 nor do I claim as new a detent, except where connected with the slide and moving therewith.

set my hand.

ISAAC S. CORY. Attest:

Gno. H. KNIGHT, S. B. SPEAK.

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