US111437A - Improvement in potato-diggers - Google Patents

Description

ing the wheel will turn on the axle.

timid sind JAMnsnAvIs, or snnaroeannw YORK.

Letters retenant. 111,437, dated January 31,1871.

IMPROVEMENT IN POTATO-DIGGERS.

'.Lhe Schedule referred to in these Letters Patent and making part of the same.

To .all whom 'it may concern Be itknown that I, JAMnsDAv1s, ofthez town of Saratoga, in the county of- Saratoga and in the State of New York, have invented certainA new and useful Improvements in Machinery for Digging Potatoes; and d0 hereby declare that the following is a full, clear, and exact description thereof, reference being had. to the accompanying drawing and to the letters of reference vmarked thereon making, a part of this specification.

The nature of my invention consists. in the construction and arrangement of a potato-digger, as-

will be. hereinafter fully set forth.

Inorder to enable others skilled in the art to which my invention appcrtains to make and use the same, I will now proceed to describe its construction and operation, referringto the annexed drawing, in which- Figure 1- is a plan View, and

Figure2 a side view of my machine.

Figure 3 is an inside view of thehub of one of the driving-wheels.

A represents the frame of my machine, provided with suitable journal-boxes, through which passes the axle B, having upon its 'ends the driving-wheels C C.

The hubs of the wheels C C are box-shaped, opn` which-fits a feather on the axle, thus allowing said cap to be moved ont or in on the axle, but preventing it from revolving ou the same.

On the inside of the cap D is formed a ratchetwheel, a, vandin the hub of the wheel is a spring pawl, b, bearing or working in said ratchet-wheel inl such a manner that when the machine moves forward the axle will be made to turn,- while when it is .back- Under each side of the frame A, in front of the axle, is suspended a journal-box, E, in which a.cr`ank shaft, G, has its bearings.

From the under side of each of the journal-bo xes E a metal strap, d, extends toward the rear, its rear end beingsuspend'ed and adjusted by means that will be hereinafter set forth.

On the rear ends of the straps (Zd are placed other journal-boxes, e c, for another crank-shaft, H.

On the two crank-shafts, G and H, are placed the pickers Y--I I, which consist each of a head, with teeth on the under side, said teeth being curved toward the rear.

' The pickers 1 I receive the necessary motion by means of a cog-wheel, J, upon the axle A, said wheel gearing with a pinion, f, upon the end of a shaft, K, which runs parallel with the axle.

Upon the other end 'of the shaft K is a cog-wheel, L, which gears with a pinion, g, on the end of the crank-shaft G, thus imparting the req'niredfmotion.

Under the pickers I I is placed the plow or blade M, consisting of a V-shaped frame, with rods running back a suitable`dstan-c'e.` -Thisblade is attached to and supported by twoupright bars', N N, secured at the rear end of the blade, and passing through guides O 0 in the frame.- The bars N N are slotted where' they pass through the guides, and a pin, h, is passed through said guide and slot.

To each of the bars N is'secured a beam, P, which runs forward under the frame A and pivoted under the frontend of the frame.

The upper ends of thevbars N N are connected by a cross-bar, R, and a lever, S, pivoted ou said crossbar. The front end of this lever is, by rods k k, attached to the frame A, and by raising or lowering the rea'rvend f said lever it follows that the plow or blade Mis adjusted to any height desired, and the front ends of the beams P P are at the same time raised or lowered to'correspond.

From the bars N- N metal straps m lm, pass under thejournal-boxes e c supporting the same, said boxes being thus adjusted by the adjustingof the blade M.

At the front ends of the beams P P are pivoted clevises n n, which are bolted to a cross-beam, T: To this beam the horses arc to be attached by a doubletree in the center.

On the upper sides of the beams P P, near the `front ends, is laid a cross-bar, V, ou top of which the tongue W is hinged or pivoted. .l

From the upper side of the tongue W a bar, X, extends a suitable distance toward the rear, so as to rest upon the center of'a shaft, Y, placed at the front end of the frame A, when the machine is in opera-v tion.

On the center of the shaft Y is a canr or projection, p, and at one end is a lever, Z. The tongue, being held by the horses in its proper position, the part of the machine infront of the axle is raised up from the ground by bearing down upon the lever Z, which causes the projection p to come nder the rear end of the bar X. The lever Z is held in this 'position by a hook, of, on the frame A.

At a suitable point on each of the beams P is pivoted an arm, A', which extends forward and is adj usted at any Vsuitable point by the slotted bar B', as' 'shown in iig. 2.

The front ends of the arms A form bearings for a shaft, upon which is placed a roller, O', and\fromthe said arms rods s s extend outward, as seen'in fig. 1.

O n the under` side of the cross-beam-T are hinged Scrapers D', four in number, two of which rest upon the shaft for the roller C', one on each side thereof, and the other two rest on the Arods s s.

The roller C' and Scrapers D' are for the purpose of pressing clown and raking the weeds' so as not to clog the pickers I I in rear.

Having thus fully described my invention, v

IVhat I claim as new, andv desire to secure by Letters Patent, is l v1. The pickers I I, constructed as described, and

' operated by means of the crank-shafts G H, pinions 4. The arrangement of the plow or blade, M, slotted bars N N, with beams P P, guides O O, cross-bark, lever S, and rods k la, all substantially as and for th e purposes herein set forth.

5. The arrangement, with frame A of the potatod'igger, of the bar V, tongue W, bar X, shaft Y, projection j), and lever Z, all substantially as and for the purposes herein set lfort-h.

6. The combination of the pivoted arms A'A', slotted bars B B', roller C', and sorapers- D' D', all suhstautially as and for the purposes herein set forth.

In testimony that I claim the foregoing' I, have hereunto set my hand and seal this 25th day of May,

JAMES DAVIS. v[L s.] Witnesses:

. G. F. WATSON, l

J. H. DE RlDDER. V

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