US1540013A - Stump puller - Google Patents

Description

June 1925- v 1,540,013

G. H. JENKINS STUMP FULLER Filed March 20, 1925 J21 vn & oz",

6-H. Jenh'zns 28 r;

Patented June 2, 1925.

UNITED STATES 1,540,013 PATENT OFFICE.

STUMP M LLE Application filed March 20, 1923. Serial No. 626,365.

To all whom it may concern:

Be it known that I, GEORGE HENRY JEN- KINS, a subject of the King of Great Britain, and a resident of the city of Salmon Arm, in the Province 'of 'British Columbia, Canada, have invented certain new and useful Improvements in Stump Pullers, of which the following is a specification.

My invention relates toimprovements in stump pullers and the object of the invention is to devise a double acting ratchet inechanisn'i for rotating a drum on which the cable secured to the stump is-mounted; A further object is to devise manual means for actuating the double pawl mechanism.

My invention consists of a stump puller constructed and arranged all as hereinafter more particularly described and illustrated in the accompanying drawing in which:

Fig. 1 represents a vertical section through the frame of the device showing the drum in section and the means for actuating the same.

Fig. 2 is a plan view.

Fig. 3 is a cross sectional view through the line 3-3 Figure 1, and

Fig. 4. is a perspective detail of the saddle piece for supporting the double pawls.

Like characters of reference indicate corresponding parts in the different views.

1 is the frame of the device provided with the upwardly central web 2. 3 is a member extending across the device from the central web 2 to the side of the frame 4t. 5 are upwardly directed webs extending longitudinally of the frame and provided with the holes 6 through which the anchor cable extends, said webs being positioned between the central web 2 and the sides 7 of the frame. 8

the drum journalled by means of a transverse shaft 9 in the sides 1 and 7 of the frai'ne.

10 is a flange on the drum formed on the end adjacent to the side 7, and 11 is a ratchet wheel on the opposite end of such drum. 12 is an arm through which ex tends the transverse stub shaft 13, journalled at its ends in the side i and the web 2 of the frame, said arm 12 having the bifurcated end 113, each leg of which is provided with a longitudinal slot 14.

15 is a U-shaped saddle piece straddling the opposite end of the arm 12 to its bifurcated end and said shaft 13 extending through orifices 16 in such saddle piece.

spiral springs,

extending longitudinal the fulcrum of the tooth of the ratchet wheel and thus rotate the same, and with it the drum 8.

Consequently by reversing the direction 17 are upwardly extending lugs provided with orifices 18. 19 and 20 are the pawls pivotally connected to the saddle piece 15 by pins 21 which extend through the respective orifices 18 of the lugs 17. 22 are each secured at one'end to a lug on the upper face of the arm 12 and having its other end secured to a lug on the corresponding pawl for holding it in engagement with the ratchet teeth of the wheel 11. v

23 is a nut positioned between the legs of the bifurcated end-13 of the arm 12 and adapted to be threaded onthe vertical spindle 24, which is journalled at its lower end in the bottom of the frame 1 and in the vicinity of its upper end in the member 3, the upper end being provided with an enlarged head 25 with the orifice 26 therethrough, which is adapted to receive the actuating handle 27. The nut 23 is provided with the outwardly extending lugs 28, which extend through the slots 14 in the bifurcated end 113 .of the arm and are provided exteriorly thereof with the guiding blocks 29 which bear against the outer face of the bifurcated end 113 and thus prevent the nut from turning in such end,

while permitting longitudinal movement. k

The inner faces of the side 4: of the frame and the web 2 are provided with recesses 30 and 31 respectively, which receive the blocks 29 and permit their vertical movement therein.

The operation of my device is as The cable .32 is attached at its to the stump and wound about the drum 8.

follows free end Then by turning the handle 27 in the required direction the nut 23 is screwed up the spindle 24 and as such nut has.the lugs 28 extending through the bifurcated end of the arm, such end of the arm will be drawn up and when this occurs, the pawl 19 engaging the ratchet wheel will turn the drum in the direction indicated by the arrow in Figure 1, thus winding in the cable 31. lNhen'the nut has reached the upper limit of its movement the direction of rotation of the handle is reversed and as the nut is screwed down on the spindle 2 1, the ratchet pawl 19 will be inoperative, but the pawl 20 which is in the opposite side of arm 12 will engage a ratchet Wheel engaging nected to the arm ,on the other side of of rotationof the handle 27 the drum will be continually rotated in the ,direetion'indieated by the arrow, with the result that the cable 32 will be wound in as required.

hat I claim as m'y-invention is:

1. Ina stump puller, the combination with a journalled drum, of a ratchet wheel thereon, a fulorumed 2&1 1'0, aar-atchet wheel engaging pawl pivotally connected to the .arm on oneside of -the fulcrum, za-second pawl pivotally :con-

the fulcrum, a nut having laterally extending"l;ugs,;tl-1e Opposite end eof-thmarm to thetend upon which-the pawls are mounted beingrhifurcated"and its legs provided with :longitudinally extending. slots -receiving s the lugs of the nut, a vertically ournalled spindle threaded through the nut, means for rotating the spindle, and means for preventing the partial rotation of the nut in the bifnrcatedwendof-the arm.

2. In a ;-st,ump puller, the combination with arjournalled drum, of aratehet wheel thereon, a fulcrumed ar1n,a;ratchct wheel engaging pawl pivotally connected to the armon one side of the fulcrum, a second ratchet wheel engaging pawl pivotally con- .nected to the arm on the other side of the -fulcrum, a nut having laterally extending 30 Jugs,the-oppositeend of the arm to the longitudinally extending slots receiving the lugs ofthe nut, a-vertically journalled spin- \dle'threaded'through the nut, means for V rotating :the spindle, and a block secured to'the extremity ofeachlug on the nut and dlSPOSQtle'GXiZGllOIb of the legof the bifurcated-end of the arm 'andadapted to bear 40 against the same.

enonen HENRY} JENKINS.

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