US240681A - Enoch farnsworth - Google Patents

Description

(No Model.)

B. PARNSWORTH. Stump Extractor.

No. 240,681. Patente d April 26,1881.

' N-PETERE VHOTWUTHOGRAPHER, WASHXNGTON. D, O

UNITED STATES PATENT @EETCE.

ENooH FARNSWORTH, OF GRANT, ASSIGNOR or ONE-HALFTO 13. s. LEWIS,

or INDIANA, PENNSYLVANIA.

STU M P- EXTRACTO R.

SPECIFICATION forming part of Letters Patent No. 240;681, dated April 26,. 1881.

Application filed March 19, 1881. (No model.)

To all whom tt may concern:

Be it known that I, ENOGH FARNSW'ORTH, a citizen of theUnited States of America, residing at Grant, in the county of Indiana, and State of Pennsylvania, have invented certain new and useful Improvements in Stump-Extractors; and I do hereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled ,10 in the art to which it appertain's to make and use the same, reference being had to the ac companying drawing, and to the letters or figures of reference marked thereon, which form a part of this specification.

Heretofore machines designed for pulling stumps or raising stones, and more especially those machines wherein a cord or chain 'in con nection with a capstan is used, have,as a rule, been open to many objections, chief among which is the liability of the cord or chain rid ing upon or against the top or edges of the preceding coil upon the capstan while the machine is being operated, and thereby jamming, and in many instances breaking, the said rope or chain.

Again, machines of the class named, from their manner of construction, as well as from the means employed to operate them, require considerable space-that is to say, it is necessary that considerable space be left about the machine for the passage of the draftanimals attached to the lever or sweep.

Another objection in the above-named class of machines is the slow and unsatisfactory means employed to lower objects so raised, to accomplish which it is necessaryin many cases to detach the animals from the machine, thus causing considerable trouble and loss of time.

To remedy the above-named defects, and at 40 the same timeto provide a simple, durable, and easily-operated machine, has been the object of this invention; and to the accomplishment of this endit consistsin a machine provided with a conical or tapering capstan journaled in a suitable frame, and in the means employed to operate said capstan, substantially as hereinafter described.

It also consists in means whereby the capstan may be instantly thrown into or out of connection with the operating lever or sweep,

and in the means employed to prevent the capstan from rotating at such times, substantially as hereinafter described.

It finally consists in the arrangement and combination of the parts as a whole, substantially as hereinafter set forth.

The drawing represents a perspective view of my improved stump-pulling and stone-raising machine.

Referring to the drawing, A A represent the legs or supports of the machine, held together and in position by braces a, and constituting the frame of the machine proper.

The legs or supports A A are provided upon. their lower ends with suitable feet, a, the under or lower sides of which are rounded or beveled upward toward the sides and front, as shown, such beveling operating to render the machine capable of being easily moved from place to place. A

The forward main leg or support, A, is in curved form, its upper end extending outward beyond its juncture with the legs A, as shown at Aflthe extreme end being hollowed out to afford a bearing for the upper smaller portion of the cone-shaped capstan B, the lower end of which capstan is journaled in a broad supporting-timber, B, secured to the rear sides of the legs A, as shown.

Thecapstan B is held in position and against the projection A by a strap, 1), secured to A by suitable bolts or screws.

Secured to the upper end of the capstan B, above the projection A is a toothed wheel,

E the purpose of which wheel will be hereinafter described.

The lower end of the capstan B is provided with ratchet-teeth j, that engage with a pawl,

F, pivoted to the upper surface of the timber 13.

The capstan B is made hollow throughout its length for the accommodation of a shaft,

D, which exten ds through and outward beyond each end of said capstan.

To the upper end of the shaft D is attached "9 5 the lever or sweep G, the said lever extending thence outward and downward to a point near the ground.

From the under side of the lever 0, near the upper end thereof, is a downwardly-projecting ,I 0

spur or pin, 0, that engages with the teeth of the wheel B It is obvious that the wheel B will be turned by the lever 0 when the latter is in connection therewith, as above described, and it will be also clearly seen that when the shaft D is raised the pin 0 will be thrown out of connection with the teeth 0 of the wheel B at which time either the shaft D or the wheel B may be revolved independently of each other. To accomplish this end I provide the lower end of the shaft D with a groove, into which fits a staple or eye, 02, said staple being attached to a hand-lever, c, pivoted or fulcrumed at E to a stud projecting downwardly from the forward under side of the timber B.

To the rear edge of the timber B, I attach a stud, E, provided with notches e, to receive and hold the lever 6 when the latter is raised or lowered, thereby, through the shaft D, causing the sweep O to be thrown into or out of connection with the wheel B, as described.

From the foregoing description it will be clearly seen that the machine may be set in a small space-as, for instance, a fence-cornerthe lever or sweep 0 being moved forward as far as possible, then released from engagement with the wheel B moved backward, and the operation repeated, the pawl F preventing the capstan from revolving backward when the sweep is released from the wheel.

It will be also seen that, inasmuch as the upper part of the capstan is smaller than the lower part, the rope G will first be wound upon such smaller portion, thereby exerting greater force at the moment of starting the object from the ground.

In the drawing I have shown the machine as being provided with three blocks, 9 g g, the latter being capable of adjustment to either of the points a in the leg A; but this exact number is not necessary, such number of blocks being varied as circumstances require.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a stump-pulling machine, the conicalshaped hollow capstan B, provided at its upper end with the toothed wheel B and at its lower end with ratchet-teeth f, substantially as described.

2. In a stump-pulling machine, the combination of a hollow conical-shaped capstan, B, having the toothed wheel B and ratchet-teeth f, with the projection A of the leg A and timber B, attached to the legs A and provided with the pawl F, substantially as described.

3. In a stump-pulling machine, the shaft D, extending upward through the hollow capstan B, and provided at its lower end with a groove for the reception of a controlling-staple, and attached at its upper end to the curved sweep 0, having the downwardly-projecting pin 0, substantially as described.

4:. In a stump-pulling machine, the combination of the sweep O,havingthe downwardlyprojecting pin 0, with the shaft D and toothed wheel B of the capstan B, substantially as described.

5. In a stump-pulling machine, the combination of the shaft D, attached at its upper end to the lever O, and provided at its lower end with a groove, with the swiveled staple d, projecting from a hand-lever, c, pivoted or fulcrumed at E to a stud projecting downward from the timber B, and controlled and limited in its upward and downward movement by notches c in a stud projectingdownward from the rear edge of the timber B, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ENOGH FARNSWORTH.

Witnesses:

JOSEPH FORREST, J os. R. EnsoN.

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