US222063A - Improvement in grain-drills - Google Patents

Description

M. G. MADSON. Grain-Drill. No, "222,063;

Patented Nov. 25, 1879.

WITNESSES: i I INVENTOR: WW zgwddw/ ATTQRNBYSI UNITED STATES PATE FFIGE.

MADS G. MADSON, OF OSLO, WISCONSIN.

IMPROVEMENT IN GRAIN-DRILLS.

Specification forming part of Letters Patent No. 222,063, dated November 25, 1879 application filed August 13,1879.

To all whom it may concern:

Be it known that I, MADS G.MADSON, of Oslo, in the county of Manitowoc and State of Wisconsin have invented, a new and 1mprovedGrain-Drill, of which the following is a specification.

The invention consists in combining with the feed-wheel a seed-cup having a hinged part provided with a recessed projection and lip, andincombining with a chain-beam and pinion on the shaft-beam a segmental ratchet-lever fulcrumed on the side plate, all as hereinafter described.

In the accompanying drawings, Figure l is a plan of one end of the frame of a grain-drill, showing my improvements. Fig. 2 is a crosssection of the same on line or m, and Fig. 3 is a front view of the seed-cups and driving-shaft.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A is the main beam of the drill. B is one side plate attached thereto. 0 is the driVingshaft, passing through a box, a, in the side plate, and having on its outer end a spindle, between the collar and nut whereof is held a driving-wheel, D, turning loosely on the spindle, and having on the inner end of its hub a ratchet, c.

E is a ratchetclutch held on the feathered portion of the shaft, between the side plate and driving-wheel. When the drill is in motion, moving this clutch to the wheel it is engaged instantly, giving motion to the drivingshaft, while moving it from the wheel stops the shaft and feeding mechanism.

The driving-shaft passes through the seedcup F, and carries within the same the feedwheel (I. This arrangement of the feed-wheel on the shaft, together with the ratchet-clutch, gives a more direct movement to the feedwheel than in the machines heretofore used, wherein the feed-wheels were connected with the shaft by gearing, and motion given to the shaft by a ratchet and pawl, both of which arrangements caused a loss of power and motion.

The lower part, c, of the feed'cup is hinged by its rear edge, f, to the upper part, so that it can be opened, as indicated by the dotted lines in Fig. 2, to give access to the cups to cleanse the same or clear them when choked When closed this hinged portion is fastened by a loop, g, hinged or pivoted to the upper part and adapted to swing down over the lower part under a lip, h, and thus hold it closed. This arrangement greatly facilitates the opening and closing of the cups.

G is the'feed-regulator, composed of a sleeve closed at one end, i, with a square hole through the same for the drivin g-shaft, so that the regulator turns with the shaft, but at the same time moves freely and easily backward and forward. The opposite end of the feed-regulator is adapted to pass through a circular opening, i, in the adjacent side of the feed-cup, so that it will slide over the feed-wheel, its internal surface being grooved to receive the ribs of the feed-wheel, and thus enable a close joint to be made between the wheel and regulator to preventthe grain from getting between them.

To move the feed-regulator a bar, j, is passed through an opening in the side of the cup against the driving-shaft, thence under the feed-Wheel and regulator, and is connected by a rivet with a projection, 70, from the outer end of the regulator. This bar slips freely back and forth, carrying the regulator in and out of the cup, thus regulating the extent of the ribbed surface of the feed-wheel exposed to the grain, and acting on the same in the operation of feeding. regulator in the drill, so that when moved it adjusts simultaneously and to the same extent all the regulators, and thus insures evenness in the feeding.

H is the segmental ratchet-lever, fulcrumed at it in the'side plate and with the ratchet engaging the pinion l. on the shaft of the chainbeam I, with which the drill-teeth are connected, so that by turning the lever backward on its fulcrum the pinion, and through it the beam, is rotated,winding up the chains and raising the drill-teeth quickly, easily, and all together, and they may be retained in that position by a pawl, m, engaging a rack, or, on the side plate. The teeth are lowered by simply releasing the pawl and allowing the lever to move forward, whereby the beam rotates in the opposite direction, unwinding the chain, and the teeth fall to the ground.

It is connected with every p Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The hinged part c of the seed-cup, provided With a recessed projection to receive the flange of the feed-wheel, and the lip h, to adapt it to be secured to the upper part by the loop g, in combination with the feed-wheel cl, substantially as and for the purpose set forth.

2. The segmental ratchet-lever H, fulcrumed in the side plate, B, in combination with the chain-beam I, carrying the pinion l, for supplying a rapid and easily-operated power for raising and lowering the drill-teeth, substantially as described.

MADS GUNDER MADSON, Witnesses:

CORNELIUS MADSON, O. ToRRIsoN.

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