US1485458A

US1485458A - Stump puller

Info

Publication number: US1485458A
Application number: US628194A
Authority: US
Inventors: Gilmore Joel
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-03-28
Filing date: 1923-03-28
Publication date: 1924-03-04
Anticipated expiration: 1941-03-04

Description

March 4, 1.924.

3 Sheets-Sheet 1 ,G2/Mara,

March 4, 1924.

J. GlLMoRE sTUMP ,FULLER Filed March 2s, 1923 3 SheetsQSheet i `2 re, nvewbo'p March 4 1924. v

J. GILMRE STUMP FULLER Filed March 28,-1923 3 Sheets-Sheet 3 Patented Mar. 4, 1924.

ETE ST JOEL GILMORE, orv HULL, marras.

STUMP" PULLER.

' Application filed. March'ZS, 19213. Serial No. 628,194.

To all 'whom t may concern.'

Be it known that I, JOEL GILMORE, a citizen of the United States, residin at Hull, in the county of Liberty and tate.

of Texas, have invented certainV new and the primary object thereof residing in lthe.l

provision of such a device wherein the` pull= ing element is operated by hydraulic meansg A further object ofA the invention is theprovision of a tree stump puller, wherein the same is readily adaptedtobe transported from place to place, the device'beingfurtherV characterized by its simplicity of construe-f tion, durability and etliciency of operation, the same embodying relatively few parts,

com arativel s eakinvv andthese sol cor- Y P e1.

related as to reduce 4the liability of derangement to a minimum.

The nature and advantages of the inven. tion will be better understood when the following detailed description is read in cion-Y iiection with the accompanying drawings, the invention residing in the construction,

combination, and arrangement of parts as at opposite endsjof the cylinders 17 a-re pairs claimed. Y

In the drawings forming part of this ap-` plication, like numerals of reference indicate .similar parts in the several views, and where-l in Figure 1-is a top plan view of my maf' l 23 is provided with asprocket gear ,24, and

chine.

Figure 2-is a side elevation thereof.

Figure S-is a detailI longitudinal cross sectional view of a portion of' the machine, hereinafter more fully described.

Figure l-ig an enlarged top plan ofthe fluid ejecting motor.

Figure -is across section through one of the cylinders of this motor, and

Figure 6-is a fragmentary enlarged cross Section threugh. the end 0f theelementshown in Fio'ure 3.

Referring t0 the drawings in detail, 5

designates the frame .ef therriaehne, that is, Subs,fanallyI retargiiler. in shape'geme bodying side bars k6, end bars 7 atransverse cross bar 8, adjacent the rear end bar and a longitudinal bar 9, between the end bars and spaced aV distance inwardly from one of the longitudinal frame bars 6. 10 *designates the steeringl axle, 11 the front sup-V porting wheels, 12 the rear axle, and 13 the rear supporting wheels. Y ,l

-Suit-ably.supported between the bars 6 and 9 of the said frame' 5 land adjacent the front end of the machine is a combustion engine, designated in its entirety by the numeral '14. This engine may be of any lnature desire ble,-an d I do not wish to be limited. as to a inotor of any` particularv form", vit only being understood that one end of jthe shaft 15 thereof extends inwardly of the fra-maand is equipped with a sprocket gear.

Secured upon the said frame bars 6 andV 9, as well as the end frame bar 7, and rearwardly of the combustionl engine '14 is an oblong plate 16, upon the top face ,of which are four cylinders 17j. It -is preferable that these cylinders .be cast with the plate 16, for the purpose of reducing-the cost of inanufacture.k As clearly .shown in Figures 1 and 2, thesecylinders are arranged'in pairs,

the front ends of each pairb'eingjspaced a suitable distance apart. Rectiline'arly mov-` able withineachcylinder is a piston 18,' upon. one end of a rod 19, the opposite ends of the rods being yoked aty 20, and pivotally secured at 21 to certain endg` of connecting rods 22".

Also castrintegrally `with the plate '16, and

of bearing brackets 22, and journaledV between each pair ofbrackets is al crank shaft 23 to the .crank portions of which -are conf. nected vthe oppositeends of said connectin rods 22. The outer end' of each cranksha t 17 are provided .with inlet nipples 29, which haveY communication through thev .instru- Il ieiitaglityl of aT single'. platei l connection 30', with the Vsaid pipe 28jA rlghe said cylinders 17 are further provided with outlet nipples 31,- the cylinders of each pair having coin-A munication with the pipe 28,v through pipes;

82. The pipe 28 between the inlet and outletconnections of the Said cylinders, 17 is equipped with a control valve 33, this pipe being further provided at a point adjacent the tanlr 27 with a cut o valve 34. n

Secured in any manner desirable between the frame bars 7 and 8 of the machine frame is a relatively elongated open ended cylinder 35. The rear end of the cylinder projects beyond the frame bar 7, and screw threaded at 36, the same having screw threadedly disposed upon this end a hollow head 37 the front end of which is soiid and pointed at 38. Slidable within the cylinder is a relatively elongated plunger 39, the rear end of the same being equippecL with a desirable number of piston rings 40. The plunger 39 is preferably hollow as more clearly shown in Figure 6, and formed upon the projecting end of this plunger is a pin 4l, which has secured thereon a cross arm 42. Upon the cylinder 35, and at opposite sides thereof are laterally extending ears 43, and interconnected between these ears and adjacent the opposite ends of the said cross arm 42 are springs 44, the purpose of the same being to normally maintain the plunger 39 rearwardly within the cylinder 35.

The said p-ipe 28 from the fluid tank 27 has connection at 45 with the said hollow head 37 upon the end of the cylinder, it being of course understood that when my device is in use, the machine iis adapted to be backed up for permitting the said pointed end of this head to engage the base of a tree A. When it is desired to employ device for puiling tree stumps, the machine as aforesaid is backed up to a tree A, that is in somewhat close proximity to the stump B to be pulled. After the machine has been moved to the position of Figures 1 and 2, there is positioned around the tree A., a pair of cables 46 which carry pulleys 47. Secured to the extreme ends of the said cross arm 42 upon the end of the plunger 39 are the ends of a cable 48, these ends of the cable having been previously passed over the said pulleys 47 Loose upon this cable is a pulley 49, which carries a hook 50, adapted for receiving one end of a cable 51, which has been engaged around and secured to the said tree stump B. The valve 34 in the pipe line 38 is now open, while the valve 33 is closed. The engine 14 is started for effectively controlling the operation of the pistons within the cylinders, for withdrawing the iiuid from the tank 27, and consequently discharging the same to the pipes 32 again into the pipe 28, and consequently into the cylinder 35, for forcing the plunger 39 forwardly therein, for reducing the length of the cable 48, which will effect a pull upon the cable 5l and consequently withdraw the stump from the ground. As the plunger 39 moves outwardly, the springs 44 are expanded, and after the tree stump has been pulled, the motor is stopped, the

valve 33 opened, whereby through the force of the springs 44, the plunger moves backwardly within the cylinder, for returning the fluid to the tank 27.

In view of the above description, it is believed by me that it will at once be apparent to those skilied in the art, that I have provided a highly improved form of stump pullinflf machine, and one that is absolutely positive in its operation, and although I have herein shown and described my machine as embodying certain detail structural elements, it is nevertheless to be understood that the same may be changed from time to time, without departing from' the spirit and scope of the invention as claimed.

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

l. In a machine of the class described, a frame, a cylinder disposed upon said frame, a plunger movable Within the cylinder, a pointed head upon one end of said cylinder and adapted for engagement with the tree adjacent the stump to be pulled, a source of fluid supply, means for forcing said fluid into said cylinder for ocoasioning the outward movement of the plunger therein, a cable connected at its ends to the end of said plunger and engaging over pulleys upon said tree, and a connection between the cable and the stump to be pulled. Y

2. In a machine of the class described, a frame, a cylinder disposed upon said frame, a plunger movable within the cylinder, a pointed head upon one end of said cylinder and adapted for engagement with the tree adjacent the stump to be pulled, a source of fluid supply, means for forcing said fluid into said cylinder for occasioning the outward movement of the plunger therein, a cable connected at its ends to the end of said plunger and engaging over pulleys upon said tree, a connection between the cable and the stump to be pulled, said connection comprising a pulley loosely carried by said cable, and a cable surrounding the said stump and connected to said pulley.

3. In a machine of the class described, a frame, a cylinder mounted upon said frame and adapted for engagement at one end with a tree adjacent the stump to be pulled, a plunger movable within said cylinder, cable connections between one end of the plunger, the said tree and the stump to be pulled, and hydraulic means for forcing said plunger outwardly of said cylinder.

4. In a machine of the class described, a frame, a cylinder mounted upon said frame and adapted for engagement at one end with a tree adjacent the stump to be pulled, a plunger movable within said cylinder, cable connections between one end of the plunger, the said tree and the stump to be pulled, and

hydraulic means for forcing said plunger outwardly of said cylinder, and automatic means for returning the plunger within the cylinder.

5. In a machine of the class described, a frame, a cylinder mounted upon said frame and adapted for contact at one end with a tree adjacent the stump to be pulled, a plunger movable within said cylinder, a source of fluid supply, means for forcing said fluid into said cylinder, for discharging the plunger therefrom, means for returning said plunger into the cylinder when said other means is cut off for returning the fluid to its source, and cable connections between the plunger, the said tree and the stump to be pulled.

6. In a machine of the class described, a frame, a cylinder mounted upon said frame and adapted for Contact at one end with a tree adjacent the stump to be pulled, a plunger movable Within said cylinder, a source of iiuid supply, means for forcing said fluid into said cylinder, for discharging the plunger therefrom, means for returning said plunger into the cylinder when said other means is cut off for returning the fluid to its source, cable connections between the plunger, the said tree and the stump to be pulled, said cable connections including a cable secured at-its opposite ends to one end of said plunger, pulleys upon the tree around which are engaged said cable, a cable arranged around the stump and a pulley connection between the two cables.

In testimony whereof I aX my signature.

J OEL GILMORE.