US38011A - Improvement in stump-extractors - Google Patents

Description

UNITED STATES PATENT OFFICE.

J. HERINGTON 'HENDEE, BLAGKMAN TOWNSIHP, MICHIGAN.

IMPROVEMENT IN STU MP-EXTRACTORS.

Specication forming part of Letters Patent No. 38,011, dated March 24, 1863.

To all whom it 'may concern Be it knownV that I, J. HERINGTON HEN DEE, of the township of Blackman, (late the township of J ackson,) in the county of Jackson and State of Michigan, have invented a new and Improved Stump-Extractor; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specicatiomin which- Figure l is a side elevation ot' myimproved machine. Fig. 2 is a plan view ot' Fig 1. Fig. 3 are the fulcrum-plates for the main beam. Fig. 4 is a view of the rear end of Figs. l and 2.

Similar letters ot reference indicate corresponding parts in the several gures.

The nature of my invention consists in mounting and arranging a 'powerful lever on runners in suoli a relation to the horizontal draft-beam of the sled that a train otpulleys and ropes can be applied to operate the lever, and thus a powerful leverage can be obtained for pulling up stumps, stones, 85o., and at the same time the machine can be dragged about from place to place, as will be hereinafter described.

It also consists in the arranging on the rear end of the sled aframework, which, being properly braced,is used for supporting the partially-extracted stump while a new purfrom chaseis taken, as will behereinat'ter described.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

In the annexed drawings, A A represent two sled-runners, which are turned up at their front ends, and which are made very thick, so th at they will not be liable to bury themselves into the ground when great pressure is put upon the sled. B B are two perpendicular standards, which are framed into the runners near the middle of their length; and G is a very strong bridge-tree, the ends of which are tenoned into the standards B B. D is a transverse bar, which is secured at its ends to the elevated or crooked ends of the sled-runners A A. E is a horizontal draft-beam, the rear end of which is mortised into the bridge-tree U, and extending from this point forward. This beam E is secured rigidly (atthe middle of its length) to the cross-barD by a staple, a, or other suitable device. The beam E is furnished with a clevis, b, on its forward end for attaching the draft-chain of the oxen to the machine when it is desired to transport it from one place to the other. The standards B B are each stii'ened by means of the inclined braces c o, which support and strengthen i not only these standards but also the sled-runners A A. The sled-runners are spread out at their rear ends' and converge toward their front ends. This allows of a comparatively large space in rear of the machine, which could not be secured with parallel runners unless the machine was made proportionately wider, and of course heavier. The lever G, which is used for extracting the stumps, is mounted on the bridgetree C, which point is the fulcrum of this lever. The short arm of lever G extends back nearly to the rear end ot' the runners A A, and carries the chain d and the grapple-hook e. The chain dis connected to a loop, d', which is large enough to slip over the rear end of the lever G, and capable of being adjusted back and forward, and set in any one ot' the notches f j' f on top ot' this lever. The front or long arm of lever Gr does not extend quite as far as the beam E, and in vertical slots, which are made through the end of this long arm, the grooved pulleys g g are pivoted, as shown in Figs. l and 3 ot the drawings.

ln Fig. 3 I have shown t'ulcrumplates,which support the lever G upon the bridgetree C, keep the lever in its place on this portion C, and prevent a rapid wearing of the parts at this point. This device consists of a ridged plate, h, which is bolted on top and in the middle ot' the bridge-tree C, and a plate, lt', having a corresponding depression in it, which is bolted to the lower edge ofthe lever G. This depression in the plate h rests on the ridge of plate h, and the two side lipsnl t', keep the lever in its seat and prevent any lateral play. A rope or chain, 7c, is secured at one end to the beam E, passed over the pulley g in lever G, thence down and under pulley s in the beam E, up again and over pulley g', and linally under pulley s. The end of this rope is now carried oli' a suitable distance in front ot the machine, and a hook, t, is secured to it for attaching the rope to the yoke of the oxen. In rear of the sled, and securely braced to the runners A A, is a horizontal transverse beam, E, which is mounted on the inclined standards J J, as shown in Figs. 1 and 2 of the drawings.

' This beam H is intended as a support for the stump or stone when it is'desired to detach the chain d from it to obtain a new purchase.

The operation of the machine is as follows: The machine is dragged from one stump to another about lthe field by attaching the draftchain of the oxen-yoke to the clevis b on the end of the beam E. The machine having been in this wa y drawn over a stump which it is desired to pull up, the rope 7c is slackened and the chain d attached to the stump by means of the C-shaped grapple-hook e. I his chain is now adjusted by slipping the loop d along the lever from notch to notch until the proper purchase is obtained. The long arm of lever Gbeing now in an elevated position, the oxen are hitched to the rope k, and everything being ready, the oxen are driven from the machine. This operation forcibly draws down the long arm of the lever and pulls up the stump. When it is found that the space through which the short arm of the lever traverses is not sufficient to completely eX- tract the stump, a rope or chain is attached to the stump and secured to the transverse beam h, so as to hold the stump in suspension when lthe chain d is detached from it. The oxen are now backed, the short arm of the lever drawn down, and the chain d again attached to the stump. Now,with this new purchase the stump may be further elevated by pulling down the long arm of the lever, as 1n the rst operation.

It will be seen from this ,description that l obtain a portable machine which is very compact, and as this portabilily is secured by mounting the lever on the runners A, wheels are dispensed with and the runners made to furnish a broad base for preventing `the machine from sinking in the earth during the operation of pulling up stumps. It will also be seen that the machine is so constructed that very few parts are employed, all of which may be constructed and put together by any ordinary workman.

The draft-beam, to which the team are attached for dragging the machine, is made to serve as a purchase also for the long arm of the lever, and, besides, this beam is so arranged that the force employed to pull down the long arm of the lever is transferred to the center of the machine, and this keeps the machine in its place and prevents it from being tipped over while it is in operation.

What I claim as new, and desire to secure by Letters Paten t, is-

l'. Making the horizontal beam E serve the double purpose of a draft beam for the sled and a purchase for the lever Gr, as herein described.

2. The auxiliary beam H, arranged as described, in combination with the sled-runners A A and lever G, as herein described.

3. The fnlcrum-plates h and h and lips i i, or their equivalents, in combination with the lever G and transverse bridge-tree C, substantially as described.

4. Combining with sled-runners A A, spread out atl their rear ends, the standards A A, bridgetree G, lever G, draft-beam E, pulleys g g s s', and rope k, substantially as described.

J. HERINGTONA HENDEE.

In presence of- MELVILLE MGGEE, By LAURENCE.

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