US240992A - James fulleb - Google Patents

Description

(No Model.)

J. FULLER. Stump Extractor No. 240,992. Patented May 3,1881.

Uwrreo STATES PATENT OFFICE.

JAMES FULLER, OF ENSLEY, MICHIGAN, ASSIGNOR OF ONE-HALF T0 \VlLLIAM W. SIMPSON, OF SAME PLACE.

STUMP-EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 240,992, dated May 3, 1881 Application filed February 4, 1881. (No model.)

To all whom it may concern:

Be it known that I, JAMES FULLER, a citizen of the United States, residing at Ensley, in the county of Newaygo and State of Michigan, have invented certain Improvements in Stump-Extractors, of which the following is a specification.

My invention relates to certain improvements in that class of stump-extractors in which a hoisting-lever is combined with block-andtackle appllances. my improvements and the objects attained thereby being too fully eX- plaincd hereinafter to need preliminary description.

In the accompanying (.lrawings, Figure 1 is a perspective view of my improved stump-extractor; Fig. 2, a longitudinal section of the lioistinglev'er, and Fig. 3 a section on the line 1 2.

The main frame of the machine consists of the sills A A, vertical posts B B, cross-beam D, connecting these posts together, and two sets of diagonal braces, to a and b b, the advantageous arrangement of which will be referred to hereinafter. There is a secondary frame, consisting in the present instance of two diagonal bars, E E, secured below to the sills A and at the top to the cross-bar F, this secondary frame being connected to the crossbeam D of the main frame by a brace or braces, Gr, so that the said main frame and secondary frame are comprised in one self -contained structure.

H is the hoisting-lever, suspended near its inner end to the cross-barD of the main frame, this connection being preferably made by links 0, the lowest one of which passes through the said hoisting-lever, a cross-piece, c,being drivon through the link beneath the lever, and the upper link being secured to the cross-beam of the main frame in a similar manner. The lever H consists of two side bars and a number of filling-pieces securely bolted together, thus forming a lever with the necessary vertical slots, and much stronger than one in which the slots are cut in the lever. One of the slots in the lever receives the endless chain H, which passes over sprocket-wheels contained in the slot, and having journals adapted to hearings in the side bars of the lever, one of thejonri'lals projecting through the side bar, so that it can be turned by a handle or other suitable instrument, Fig. 3. One or more of the links of the chain should be attached to a block, (7, extending across the top of the lever, and having a recess for the reception of the rod 0, to which the main links ff of the hoisting-chain are attached, one link on each side of the lever, chains h h, with appliances for seizing the stum p, being suspended from these main links. The fulcrum of the lever and the point at which the hoisting-chain is attached are thus both brought on top of the lever, so that great power is exerted, when the lever is down, on starting a stump.

It is advisable, for two reasons, that the distance from the hoisting-chain to the fulcrum should admit of being varied-f1rst, because more or less power can be obtained by the adjustment of the hoisting-chain, and, second, because the direction of the pull on the stump can be altered as circumstances may suggest.

After the block has been adjusted the endless chain may be secured by a detachable piece, 1', fitted into recesses in the lever and into orbetween links of the chain.

From the cross-bar F of the supplementary frame is suspended, in the manner referred to above in connection with the fulcrum of the lever, a link, m, two blocks, a andp, being suspended from this link. The hoisting-rope 00 is attached at one end to the lever, passes round one or more pulleys of the block a, round similar pulleys contained in slots at the end of the lever H, then over the pulley of the block 19, and thence through a suitable snatch-block, q, the end of the rope being attached to the traces of a horses harness.

The block-and-tackle system is substantially similar to that in common use for hoisting purposes, and may be varied as regards the number of pulleys used, in accordance with the power required.

It will be seen that the entire machine is self-contained-that is to say, the main frame for resisting the pressure to which it has to be subjected and the secondary frame for the block-and-tackle appliances are comprised in one structure, the importance of which arrangement will be understood on comparingit with the frames of other stump-extractors, in which block and tackle for operating hoisting'levers are suspended from a frame separate from the sills of the main frame.

Another important feature is the peculiar construction of the main frame, each side of which consists of a vertical post and two diagonal braces on each side of each post, two of these braces, a at, extending from the sill to the cross-beam D, to which they are united at w, and the two other braces, b I), also extending from the sill to the crossbeam, to which they are secured at q nearer to the fulcrum of the lever than the point to, where the other braces are secured. This arrangement of posts and braces insures stability. At the same time ample room is afforded for the extraction of the stump without interfering with the frame.

On referring to Fig. 2 it will be seen that two hooks, M M, are suspended from the lever at different distances from the fulcrum, these hooks being in readiness for coupling to roots of the stump when it hasbeen partly extracted, and when the turning over of the stump becomes necessary, by less exertion and more rapidity than the firstor prelimiiiary pull on the stump could be effected.

I claim as my invention- 1. A stumpextractor in which a main frame composed of longitudinal sills A A, posts, (1iagonal braces, and a cross-beam arranged at right angles to the sills, and a secondary frame supported by'the two sills, are combined with a hoistinglever suspended from the crossbcam, and with block and tackle suspended from the secondary frame, for operating the said lever, all substantially as set forth.

2. The combination of the slotted hoistinglever, its endless chain, and wheels with a block, 6?, attached to the chain, and a hoisting-chain suspended from a bar bearing on the block, substantially as specified.

3. The combination of the hoisting-leverand its main hoistii'ig-chain with one or more supplementary hooks, M.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

E. E. URANDALL, J. S. GRANDALL.

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