US827271A - Stump-extractor. - Google Patents

Description

PATENTED JULY 31, 190e.-

L & J.'s. sWBNsoN. `STUMP EXTRAGTOR. APPLIATION FILED JAN. 16, 1906.

THE Nakls Pirtlix ca., WASHINGTON. n, n.

` UNITED sTATEs PATENT oEEIoE.

sT-uMP-EXTRACTOR.

' vSpecificatmn of Letters Patent.

. Patented Julyy 3.1,E v1/9.06.

`Application iile. January 16,'1906. Serial N0."296,379.

1i' To `1f/Z whom ttm/ay con/cern: i IBeit known-that we,` LoEENs'SWENsoN -v andJoHN S. SWENsoN, citizens of theUnited "iStates, residing at Cresco, in the county of 5'1 Howard and-State of Iowa,` have invented new and useful Improvements-in Stump-Ex Htractors, of whichthe following is a specificaf ktion. l Our'inventionpertains to stump-extrac-Q Io tors7 and hasfor'one of its objects to provide f. a stump-extractor embodying a simple and inexpensive construction for preserving even =fwinding 'ofthe cable onthe drum-i. cy, rel #venting one coil ofthe cablefrom over apping another. -l

, lAnother object Aoi the invention is the pro;A

visionof a-stump-extractor embodying means r'forfobviating the difficulties due to a sudden -reverse movementr of the `sweep with a view of assuring a' firm and continuous grip on the #stump to-be extracted. Another object is the provision in astumpf extractor of two sweeps,l either of the sweeps f .-beingreadly removable so'that either one or 2 g'more draft-animals may be employed in the -o-peration of the'extractor, as conditions ref quire. y I -v'i'Other advantageous features peculiar to our invention' will be fully understood from *theffollowingdescription and claims, when r'the same are considered in connectionwith the accompanying drawings, forming part of thisjspecificatiom in whichiFigure 1 is a perspective view of the ex# l :tractor constituting the present and pre ferred embodiment of our invention. Fig. 2

is a detail vertical section vof the extractor withone of the anchor-.block sections lre moved. lFig. 3 is a horizontal section taken 4o lin they plane indicatedby the line 3 3 of Fig; 2i "Fig. 4- is an enlarged detail view, partly in x-p'erspective and partly in section,`illustrating the relative arrangement of the drum and the vertically-adjustable ring through the medi-` um of which rotary motion-is transmitted to Asaid drum. Fig. 5 is a perspective view of 'the grip comprised' iny our improvements. -'Fig. 6 is a similar view of the eye provided at one end of the cable and designed to be con-A nected-to :the grip. Fig. 7 is a'perspective view of a grubber which is employed in some instances in lieu of the grip. Fig. 8 is an enflarged detail horizontal section showing the fmeans vfor preventing casual lretrograde" 5 5 movementfof thecable-winding drum.

""Similar l.letters design-ate corresponding partsfin all ofthe views-'offthedrawings., -re- -A A are bed-timb`ers on which Lthe extracf tor is arranged to permit' Vofzit-being conven- 6o ientljT hauled from one point l'of operation-to another. rlhe sai d bed-ti mb ers may ybe land preferably are lconnected 'at .pointsadjacent to their ends throughfthemedium' of :stra s or bars a, so as toA form a 'ri id -anddurab e bed for'the machine as a who e. s

y -B is the lbase-plate ofthe mainframe ofthe extractor. Thesaidplate'is arranged on'and fixedly connected to the bed-.timbersAg Fig. 3, andis provided between saidf'timbers-'with a depending iiange b. It is" also provided i with a depending `cup cffrom-the-bottomfof l. which rises a central post d, in whichis a vertical bore or aperture e, as"l best lshown-in Fig. 2. `At one-*end* the' base-platefB ,is formed integral with anuprilv ht bar Cjwfrom which extends outwardly a ateral wing ffD, designed to' be connected-withananchorcable in the manner hereinaftervpoint'edV out 'in detail.v

vAt the up erend ofithe u rightloar G is a ring E, whicii is provided wit anarmyi bolti ed or otherwise fixed tothe upper side ofthe wing D, and is comprised in the-niainframe of the extractor.

Fis the cable-winding drum ofthe extractor. This drum is-provided at its lower 'end with a trunnionpg',v arranged to turn in the cup c of base-plate Bfand is alsoprovided adjacent yto lsaid base-plate with atoothed han e h. (Best v shown in' Fig. 1 1.) SThis toot ed-'ange isprOvidedfor thezengagement of the pawl G, which is -ba`cked-byz a spring 7c and is designed tohold :thedrum against retrograde rotary movementxwhile 95 the cable is being wound thereon with a view of avoiding loosening of thecable. The pawl 'G is 'designed to be disengaged from' *the toothed flangeh of the drum VF-:through'the medium of the foot-lever H. `(Best shown: in Ioo Fig. 8.) -Adjacent to its upper endthe drum F is providedwith a-rin Z,whichraffords a convenient handheld an is designed torenable an attendant to expeditiously rotate the drum by hand to take up'slack ofthe-cable. 105 The drum Fris peculiar inthat itiis rovided v throughout its lengthk with a helic'a circumferential groove fm.;- and .it lis also peculiar-in that it has at its upperend'an annularseries of teeth n for. awpurpose to -befpresently v11o pointed out.

Thev upper end ofthe drum F isarranged to turn within the ring E of the main frame, and above it is dis osed a vertically-movable ring-clutch I, whic has a reduced depending portion p, disposed in the upper end of the drum, as shown in Figs. 2 and 4. The said ring-clutch I has depending teeth r complementary to and designed to intermesh with the teeth n of the drum, and it also has recesses s in the inner side of its depending sleeve portion p for the reception of the cir cular series of ribs t on the sleeve J of the sweep-support. The said sleeve or hollow shaft J is arranged at its lower end in the cup c of base-plate B and is interposed between the bottom of said plate and a cap K, which is also comprised in the sweep-support and has a marginal flange u, surrounding the upj per portion of the ring E, as shown. Said cap K is connected to thebase-plate B through the medium of a bolt L, which is headed at its lower end and is provided adjacent to its upper end with a transverse aperture to receive a fastening-pin o. This fas tening-pin rests on the flange w at the upper end of the hollow shaft J, and the said flange in turn rests on and is bolted to the cap K after the manner shown in Fig. 4.

M is a rockshaft provided at its ends with handles as and at intermediate points of its length with cranks y, Figs. 1 and 2. The said cranks engage upright rods c', connected to the ring-clutch I, and hence it will be apparent that when the rock-shaft M is moved f 1n one direction the ring-clutch will be raised out of engagement wi-th the drum F, so as to leave said drum free to be turned by hand.

The teeth n at the upper end of the drum F are peculiar in that each has a perpendicular or vertical side and an inclined top, which merges at its lower end into a rectangular recess disposed between said tooth and J the next succeeding tooth. The teeth 1^ of the ring-clutch I are shaped to fit in the inclutc terdental spaces of the drum F hthat is to say, they have rectangular depending portions designed to seat in the recesses between the teeth n and also have inclined top walls arranged torest close to the sloping tops of said teeth n. By virtue of the teeth n being shaped as described it will be apparent that when the ring-clutch is moved downwardly the rojections of the teeth on said ring will slide downwardly on the ine clined tops of the teeth 'n until said projections reach the rectangular recesses between the teeth n, when it will be observed that the projections will snugly occupy the rectanguar recesses and in that way will effectually prevent casual upward movement of the vring-'clutch I in the event of the draft animal Y or animals suddenly backing. A clutch-ring may be used without the rectangular rel cesses, as it is not necessary to prevent the backing of the sweep.

N N are cable-guides. These guides are j teeth Z disposed vertically at opposite sides of the drum 'F and respectively comprise lower and upper arms a, pivoted to the upright framebar C, so as to enable said arms to swing hori'- Zontally, and wearplates a, secured in recesses in the arms a', as shown. The lower arms a of the guides N are connected by a coiled spring P, which operates to draw the guides in toward the drum.

Ris an auxiliary cable-guide which is made up of lower and upper horizontally-swinging arms (Lf and wear-plates a5, set in recesses in the arms a4, and is yieldingly held by a s )ring against the periphery of the drum, an` S is another auxiliary guide comprising lower and upper horizontally-swinging arms a and wear-plates c7, set in recesses in said arms c and yieldingly pressed by a spring against the periphery of the drum. The guide S is arranged diametrically opposite the guide R, as best shown in Fig. 3.

By virtue of the drum F being provided with a helical Groove m it will be apparent that as the cab e is wound on the drum the several cable-guides will assure the coils, of the cable resting in the groove, with the result that the even winding of the cable in its course around the drum will be preserved. and lapping of one portion of the cable over another will be eifectually prevented, which is an important desideratuni.

T T are sweeps secured to the top of the cap K at opposite sides ofthe center thereof. These sweeps when of extra length have braces U to prevent buckling thereof, and each is preferably equipped with a suitable tongue and a lead-pole, as shown. One, if not both, of the sweeps are detachable from the cap K, and hence 1t will be apparent that the extractor maybe operated by one or more draft-animals, as conditions require.

In its side at a point adjacent to one end, preferably, though not necessarily, the lower end, and in communication with one end of the helical groove m the drum F is provided with an o ening c2. This o ening 1s for the passageo one end of the cab eV, which is provided with a knot or enlargement d or a metal clamp attached and is designed to be held in drum by an eye e after the manner best shown in Fig. 3. The eye, however, is not necessary, as the wall of the drum will prevent ro e pulling out. At its opposite end the cable V is provided with an eye f around which the end of the cable is arranged and secured by clevis-blocks g of the ordinary construction or by any other suitable means.

W is a grip designed to be connected to the eye f by a pin 7L extending through the said eye. The grip is hook-shaped to permit of its being engaged with the main portion of the cable after the manner shown in Fig. 1, and it has outwardly-flaring lips k and also has projecting from the upper of said ICO IIO

lips. The function of the' teeth Z on grip W is to prevent the stump or tree from slipping out of the snare formed by the cable in combination with the grip. As the tree or stump leans toward the machine the said teeth Z are embedded in the stump or tree v which the anchor-cable may be arranged so that the said cable maybe placed lin the most desirable position, according to the pull thereon.

In the practical operation of our novel machine after the drum is freed and the cable is pulled out to the point desired the cable is passed around the stump to be extracted and the hook-shaped grip W is engaged with the cable in the manner shown in Fig. 1, after which the slack cable is taken up by rotatin the drum through the medium of the ring the pawl G being thrown back into engagement with the 'ratchet-teeth h to hold the drum against retrograde movement. When it is desired to exert pull on the cable, the ringclutch is restored to the position shown in Fi s. 2 `and 4 relative to the drum, when, as wi lbe readily apparent, rotary motion will be transmitted from the sweep to the drum.

In the event of it being desired to permit the r'horse or horses hitched to the sweep or sweeps to move forward without exerting pull upon the cable it is merely necessary for an attendant to rock the shaft M so as to lift the ring-clutch out of engagement with the W is a rubber designed to be used on the cable V inIieu of the grip W when the same is necessary. The said grubber is formed with teeth p and is provided with handles r', similar to those employed on a plow.

`When deemed expedient,the drum F may be made with a plain or smooth insteadof a grooved periphery.

We claimv 1. In a stump-extractor, the combination of a frame, a drum having a circumferential, helical groove in its periphery, a cable, and a cable guide comprising pivoted, springpressed arms and wear-plates inserted in and carried by said arms.

2. In a stump-extractor, the combination of a metallic eye, ,a'cable surrounding and embracing said eye, fastening means securing 6o the cablein rear of and adjacent to the eye, and a grip pivotally connected to the eye and havin a hook-shaped portion provided with lared ips and a jagged portion on one of said ips. 3. In a stump-extractor, the combination of a main frame, a drum mounted therein, a cable, and a grip pivotally connected with the cable and having a downwardly and rearwardly curved hook-sha ed' portion pro- 7o vided with ilared lips and a so having a agged portion on one of the upper lips.

4. ,In a stump-extractor, the combination of a main' frame, a shaft arranged therein and having exterior ribs, a cap carried by the 7 5 shaft and disposed below and connected to the flange thereof, a drum having an annular series of teeth at its upper end, a verticallymovable ringclutch disposed above the drum and having an opening and recesses in 8o the wall of said opening receiving the ribs on the shaft, and means connected to the ringclutch and extending through the cap for moving said clutch vertically. Y

5. In a stump-extractor, the combination 85 of a metallic eye, a cable surrounding and embracing said eye, fastening means securing the cable in rear of and adjacent to the eye,

and means connected to the eye for effecting connection between the cable and a stump to 9o be extracted. f

6. In a stump-extractor, the combination of a main frame having a lateral wing, a drum mounted in said frame, a sweep mounted on the frame and connected with the drum, and an anchor-blockhaving an opening the outer wall of which is toothed; the said anchor-block comprising sections receiving the wing of the frame between them, and l transverse bolts connecting said sections and roo win -7 In a stump-extractor, the combination of a main frame, a drum, a cable, and one or more cable-guides comprising pivoted arms v and wear-plates inserted in and carried by said arms.v

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

LORENS SWENSON. l JOHN S. SWENSON. Y Witnesses: v

HENRY RUSTAD, A. L. PETERSON.

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