US997901A - Stump-puller. - Google Patents

Description

S. BURTON.

STUMP FULLER.

APPLICATION FILED APR.7.1910.

Patented July 11, 1911.

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messes SYLVESTER BURTON, 0F WATERMAN, WASHINGTON.

STUMP-PULLER.

Specification of Iletters Patent. Patented July 11, 1911.

Application filed April 7, 1910. Serial No. 554,066.

To cll 'whom it 'Inay concern: 7

Be it known that I, SYLvnsTER BURTON, a citizen of the United States, and resident of Waterman, in the county of Kitsap and State of Washington, have invented certain new and useful Improvements in Stump- Pullers, of which the following is a specification.

, My invention relates to stump pullers, and comprises certain new and useful improvements therein which will be hereinafter described and particularly pointed out in the claims terminating this specification.

The object of my invention is to improve and simplify such'devices, and more particularly to produce a type of stump puller which is adapted for hand use and which shall have a certain range of power and speed of operation, which changes may be availed of quickly so as to rapidly take up the pulling rope to take in slack or when the pull is light, and the high power he used when the pull is heavy.

In the drawings accompanying this specification I have shown my invention em bodied in the form which is now preferred by me, which form will now be described.

Figure 1 is a plan view of myinvention in its preferred form. Fig. 2 is a side elevation, a portion'of the frame being broken away to better show the construction of the working parts. Fig. 3 is a longitudinal section through one end of the drum, its bearing and the worm-gear. Fig. 4 is a longi-- tudinal section through the ratchet wheel and the operating lever, showing the method of applying power to the machine.

In stump pullers of the Windlass type,.

that is, those using a drum upon which a rope or cable is wound, one of the chief objections tothose now in use is the fact that they are generally unprovided with any means whereby the speed of operation and power may be varied so as to best. adapt them to the individual pulls. speed of operation is constant whether the necessity is only for taking up. slack or for making a heavy pull. As a consequence much time is lost upon the lighter pulls which could be saved if they possessed means whereby slack might be taken up quickly and whereby the speed of operation and the pull exerted might be varied in'accordanc'e with the necessity in each particularcase. In the present invention it has been sought to secure these desirable results and in a Usually the machine of such small size and portability that it may be readily moved about and operated by hand power, thereby adapting it to the use of the man who has but little use for such machines and also keeping the first cost down to a reasonable figure. v

The drum 3 is journaled bet-ween the ends of a yoke 2, to the rear end of which is attached the anchor chain or cable, -90, the yoke being supported on a light sled-like frame 1, whereby the whole may be readily dragged about from place to place. At each end of the drum, mounted upon the same axis and so as to turn freely and independently of the drum when this is desired,

are worm wheels 4 and 5, the two being of difierent diameter or pitch, or otherwise designed so that they will produce. a different power or turning effect upon the drum. As shown the gear 4 is larger than the gear 5, as a consequence of which difference' power applied to the drum through thisgear will turn the drum more slowly, but with greater turning effect than the same powerapplied through the gear 5. In this way a change in speed and power is secured. The gears 4 and 5 are each provided with clutch or ratchet teeth which are opposed to and adapted to engage with similar teeth upon the ends of the drum. These teeth 30 are shown, mainly by dotted lines, in Figs. 1 and 2, and by full I lines in Fig. 3. Being inclined in one direct1on the drum may be turned 1n one direc- .tion by one gear without the other gear being turned thereby. Normally the gears 4: and 5 are held against the ends of the drum by springs S with sufficient force to cause engagement of the teethsufficient to turn the drum by the gear which is being used for this'*-purpose,,while at the other end the teeth will slide upon each other without offering an, appreciable resistance. The worms 40 and each engages its respective.

gear, and they are mounted to turn in bearings carried by or supported from the yoke 2. As shown theyare journaled in bars 20 and 21 secured'respeetively at the top and bottom of the yoke. "The upper ends of the worm journals extendabove their bearings and terminate in projecting sections 41 and 51, which are non-circular, so that a crank or like device may be placed thereon toturn projecting ends are them. As shown these square in section. I

A ratchet wheel 7, having a square hole adapted to fit closely upon either of these shat-t ends or 51, is journalecl hetvveen ears forming extensions out a socket member 61, which receives the enci of a lever 6, through which the power is applied. This socket member carries a pavvl 70 which is held in engagement upon the ratchet wheel 7 by a spring '71. The ratchet Wheel 7 is adapted to fit upon either of the square ends 4:1 or 51, and also upon the square ends oi? the drum shaft, 31, The lever may therefore he applied at will to oi? these shafts by simply lifting it oh of one and placing it upon the other. Also, if for any reason,

" should stick anti it he necessary to app y power thereto to turn it or one of the -Worm gears" backward, this may be clone. by reversing position of the ratchet thereon. Turning the WllQEl over reverses its direction of action upon the shaft. lVhenever rlesirecl to turn the drum backward, to run out the rope 9, this may he done o spreacling the gears 4 and 5 sniiicientl then from the teeth @ne method of cloins" this come into aiinem-ent, tl c o i and the drum he tree to -y crenlr he prothe ends 31 for up slack. The aced. upon these en this lever is is intended snout the circle, through such Uh nicl it be de- 1C1? throughout the by offsetting 1o Worm out he may he provided, to .nsly, each upon it 7 sp-- 'erent rnen.

The cons-t1 chine herein shown provide" one power, "Wltll p owcr to suit con- Worm to turn it.

1 claim as my invention anrl to patent is:

1. ln a stump puller, in combination, a drum, a drum shaft, two Worm gears mounted to turn freely upon said shaft, one at each-encl of the drum, saiclgears clifiering in size, a Worm engagingeach gear, ratchet mechanisms carried by saiol gears and the drum to rotatively connect them and COi'ltfOlled in engagement by axial movement of the gears, springs acting to norreally holci said gears in engagement with the drum, a lever carrying a rotative memher clisengageably engageahle With either Worm to turn it, and a ratchet device carried by the lever vand engaging said rotative member to turn it 52, in a stump puller, in. combination, drum, a drum shaft, 9, frame in which saiol drum and shaft are mounted to turn, Worm gear loosely mounted upon the drum shaft between the drum and the frame at each end of therlruin, clutch devices carried by drum and gears for rotative engagement, springs acting" to normally hold saiei in rotative engagement With the drum, means for holding the gears away from. the drum anti out of engagement t erevvith when clesireci, a ivorm meshing with each gear, said Worms and the gears having their shafts protecting with their ends of a noncircnlar section, a lever having a ratchet Wheel journale thereon and havin hole aclapterlt0 fit over saidl shaft ends, anti tit) ratchet device carrieol hy saici lever anti aclaptecl to engage sai; ratchet "Wheel. to turn it,

3. a stump puller, in combination, drum, a Worm gear mounted upon a coinngon axis with the drum each end thereof, ratchet teeth upon saicl gears strum. adapted to connect them to turn the (iron springs acting'upon the gears to no" holcl them in engagement With the neans for homing said gears out ent with the chem when desired, we aging saicl gears to turn then er. acla'pterl to he engaged zvri in testimony whereof it h ve offered. my signature st @1118 clay of P I sense or the SHEEP/iii

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