US1704178A

US1704178A - Disk plow

Info

Publication number: US1704178A
Application number: US154766A
Authority: US
Inventors: Davis Enoch Abner
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-12-14
Filing date: 1926-12-14
Publication date: 1929-03-05
Anticipated expiration: 1946-03-05

Description

E. A. DAVIS March 5, l929 DISK PLOW' 4 Sheets-Sheet 2 INVENTOR ATTORNEY Filed Dec. 14. 1926 E. A. DAVIS March 5, 1929.

DISK PLOW Filed Dec. 14. 1926 4 sheets-sheet 3 l INII/ENTOR. @9V/.

95M( Wbm.

ATTORNEY.

March 5, SZL 5;, A, DAW@ 1,794,178

DI SK PLOW Filed Dec. 14. 1926 4 Sheets-Sheet 4 5 lNvENToR f TFRN EY Patented Mar. 5, A192.9.

, UNITED. ,STATES PATENT oFFics.

` ENOCH Amma` Davis. OFWIIQSAKLI., MONTANA.

DISK PLOW.

- Application ledDecemberM, 1926. Serialy 110.154,76.

has been hitherto known in the art` so far 4as I am aware. The important features of lmy invention are that at all times it is possible to hold the plow in its substantial forward course despite the strikingv of obstacles such stones and the like, `and also ina-in tain the proper width ofthe cut upon hillsides, regardless of the degreeof angularity of the hillslope, within reasonable limits. In accomplishing these objects vit is not necessary that the motive power or propelling force lead off to counteract the natural tendency of the plow to `swerve due to theslope of the hill. I accomplish these and other objects of my invention bythe peculiar arrangement and combination of the parts as will be more fully hereinafter described and explained in the following specification, shown inthe accompanying rdrawings .and .finally pointed out in the appended claims.

lu the drawings s y Fig. 1 is av front elevation' kwith parts omitted. Fig. 2 is a rear elevation. .Y

Fig. v3 is a side elevation with parts omitted and other partsbroken away.V

Fig. 4 is a top plan view. y

Fig. 5 is an enlarged detailed view showing the manner of adjustably attaching. the disks, partly in section taken upon the line 5-5yof Fig. 4.

Fig. 6 is asimilarview showing the n1an ner of attaching the` beams to the main frame.

Fig. k7 is a similar view taken partly in section upon the line 7 -7- of Fig. `4. y

Fig. 8 is a detailed plan view of the steering mechanism.

Fig. 9 is a long g'itudinalv section ofthe plow. I' c lFig. 10 is a topnplan view showingthe surface of the land and the position ofthe plow in its forward travel. i f

Referring now more particularly tothe drawings, reference numerals l. and 2 indicate respectively parallel beams to which are rigidly secured bymeans of `lOOlts 3, one pair of axles 4 whichin elfect `constitutes the chassis or main frame of the plow.

are blocks 5l which are. bored through to vbe correspondingly raised.k Having Secured to the youter ends of all the axles slidably receive supplemental axles 6 bent at right angles as best seen in Figs.4 l and 2, and upon the outer extremity of which aremounted the ground wheels 7 held in position by suitablenuts 8. f All of the main axles are upturned `as at -9 and theblocks 5 are, bored; toreceive these upturned por? tions 9. The blocks 5 have perforations as at rl() and the upturned portions 9 are simi#l larly perforated so that pins ymay be passed through the perforations and thereby secure ,I

the upturned lportionsf) tothe blocks.

This adjustability of the axles will allow theplow yframe or chassis to besupported atany pre-determined height above the surface of the ground,whichfinturn will allow the plows to outr inca corresponding depth as will be hereinafter more fully explained.

ySecured to eac/hof theblocks 5j is a sector 11 with the teeth of which a tongue 12 is adaptedr to engage, the said tongue being islidably, mounted upon a lever 13 whose outer end is pivoted at 14 to a collarl,

rigid with the block 5. ,16 is a link Vonev of whose ends is pivoted aty17 to the lever 13 and its opposite yend isgbifurcated as shown and pivotedat 18 to a bifurcated collar 19 through which the supplemental Vaxle, 6 slidably and rotatably passes. rBe` tween the legs of the Acollar vlQis a ring 20 which is` secured to the shaft 6 by means of f a. screw 21 (see'FigsLQ and3). All of the four ground wheels yand their connections as just describedf'are kidentical with each other. From the foregoing 1t will be seen that in addition to .the `adjust/ability of the mainframe, consisting of the perforations 10 and suitablepins, a still greaterlexibility of control is afforded for any one corner of the frame in kcase it isrequired to raise or lower it due to the result of the scribed the one pair `ofaxles 4, the opposite kpair 22 have their respective ends pivoted at andf24 respectively. The pivotal connection E24r is inthis instance 1n the form kof a ball and socket joint, the ball member .being secured tothe rear axle 44 by' means 1 `of bolts 25; The other axle 22 is bifur rated as indicatediu dotted lines at`26 and yhas a pin 27 passing throughgasuitable `aperture inthe axle anda bearing 28 secured tothe bea1n2. kA link 129 has oneof f its ends pivoted at 30 to the beam 2, andl its opposite end is sni'nlarly connected toV the outer end of the forward axle 22. A similar link 29a connects the rear axle withthe beam 2. 3l represents cross beams which pass through boxes 32 secured toA the beam 2 (see Fig. 6). rbese boxes are flared as at 33 so as to allow a rather Ypivotal movement ot the beams 3l within the boxes. The outer ends of the beams 3l are perforated as at 34 and there are riorresponding perorations 35 in the beam l so that each beam 31 may be moved about the center of its box 32 to a suitable degree and pins passed through the apertures and so as to hold the beams in position. The opposite end of each beam 3]. has adjustably secured to it a shank 32 on which is mounted a disk 36. These disks are vertically adjustable by loosening the nuts 33 which will allow the shank 32 to be moved to a desired position and then vby screwing up the nuts 38 the shank will be bound tightly to its cross beam 3l. The disks are also adjustable laterally as already explained. It is quite desirable that the dis rs be vertically adjustable because in the grinding or sharpening ot the disks the diameter of some ot them are decreased' greater than others due to the varying hardness of the metal, 'and if the disks were not vertically adjustable, any of the disks of smaller diameter than the others would notplow so deeply. lt will be quite clear that this objection does not exist because, due to the vertical adjustment, the lower circular edges of all the disks will be in the same horizontal plane regardless of the varying diameters of the disks.

39 indicates a plate pivoted upon `a bolt 40 and through its opposite end is an aperture 41. The bolt 40 is rigid with a U- shapedv plate 42 (see Figs. l and' 4), which is bolted at 43 to the beam 2. Rigidly secured by means of the bolts 44a, to the plate 39 is a bracket 44 upon which is pivoted at 45 a steering lever 46. 47 indicates a toothed sector rigid with the bracket 44 and with which is adapted to co-act a tongue 43 so that when the tree end of the lever 46 be moved about its pivot 45 the tongue 43 kwill hold the lever in any ot its moved positions. 49 is a link, one of whose ends is pivotally connected at 50 to the lower extremity of the lever 46 and its opposite end is similarly connected at 51 to an arm 52 which extends upwardly and outwardly from the hub ot the ground wheel 7. 53 is a tie rod, each ot' whose ends is pivotally connected to one ot the arms 52, whereby a movement of the free end oi2 the lever 46 will cause both of the arms 52 to be actuated so as to turn both the ground wheels 7 simultaneously about their centers ot movement represented by the supplemental rthrough the "ti-shaped plate 42.

axles 6. This constitutes the front steering mechanism. 54 is a link, one et whose ends is pivotally connected at 55 to a projection 56 ot `the. beam 2 and its opposite end is perforated so as to receive the bolt 40 which passes also through an aperture in one end ot' the plate 39, and also a similar aperture There are a plurality o't apertures in the U-shaped plate 42 indicated at 56. By this arrangementit will be seen'that it the bolt 40 be withdrawn the plate 39 may be moved crosswise ot the trame which will of course cause the front ground wheels to be correspondingly canted,

the rearwheels lcannot accommodate themselves to this movement. Therefore, it is necessary to provide means to bring therear ground wheels into parallelisn'i with the iorward ground wheels. To do this l provide a shaft 6() having a steering wheel 6l on one ot the ends and upon 'its opposite end a pinion 62, there being suitable bearings 63 Yfor the shaft, projecting upwardly from the main frame. Vrlhe pinion wheel 62 coacts with a rack 64 upon `a connecting rod 65 each of whose ends is pivotally connected to a bell crank lever 66 extending outwardly from the members 6. By this arrangement the operator may grasp the handle 67 upon the wheel 61 and by rot-ating the'shatt 60 cause both of the rear wheels to turn about their respective centers represented by the members 6.

Either dratt animals or other motive power are connected to the device by any suitable means such as a chain 68. lVhen no plowing is involved and it is necessary to move the device from place to place such as along a country road or from the held llt) to the barn, the plbws 36 are elevated above the ground by means of the levers 13. That is to say, a downward movement ot the tree ends of the levers 13 will cause all of the blocks 5to rise, due to their sliding movement with respect to the members` 6 which will of course raise the frame correspondingly carrying the plows withit, clear ot the ground.

In operative position, all the ground wheels assume about the position as seen in Fig. 10. However, in beginning the plowing operation and betere any furrow has been eut, the plows are caused to descend into the soil a predetermined distance by means et the levers 13 as already explained. i

The ydevice is caused to travel'steadily torlll) ward until the iirst furrow is out around the field or area being,` dealt with. During` the cuttinp` of the first furrow all around, both the forward ground wheels 7 kare of course travelling upon unplowed ground After the first round or furrow is completed the right forward ground wheel Atravels within the furrow which hz just been cut7 as plainly seen in Fig'. l0.. ller example, the dotted line indicated atri in Fig. l() may represent the completion of the cycle or in other words the completion of the furrow around the field. i-'is seen in l0, the right forward ground wheel is of course still upon unplowed ground and remains so until i t reaches the dotted line A, whereupon it will drop to the bottom of the furrow already made so that the next furrow or round will be plowed to the same level of the furrow just plowed.

In order to maintain the rear right ground wheel in its position with respect to the plows as seen in Fig. l0 it is desirable that the axle l of that wheel be adjustable trans versely of the frame. I accomplish this by moving;` the axle l of that wheel to suit conditions and when so moved drop bolts through the apertures in the axle and beams l and 2.

'lhe ground wheels 7 are brought to an edge, as plainly shown, so as to somewhat eut into the soil and thus assist in maintainingv all the wheels in parallelism. I-Iowwer. since the plow when in actualy opera tion asseen in Fig. l() is more securely held in position by reason of the fact that the right forward ground wheel is always within the plowed furrow and against the bank of the furrow indicated at I3 in Fig. 9. YShould a rock or obstacle be encountered bythe front forward wheel, for example, the tendon y of course would be' for that wheel to rise out of its furrow in which case the forward steering lever 46 is opel ated to brine' the forward end of the plow back into the proper position, which can' be instantly done by the operator. If it were not for this quick steering,` mechanism, it is obvious that by the time the forward wheels were ri! stretch of unplowed ground would remain. Regardless of the canted position of the plow when in operative position, as seen in Figi'. l0. the stress or line of force cxcrted by the draftanimals or .motor is ab ways straight forward,r as seen in Fig. 9, and parallel with the banks 9. Y

vWhile I have shown a particular form of embodiment of my invention, I am aware that many minor changes therein will readhted, as indicatedq quite a.

ilyy suggest themselves to others skilled inl the art without departing;` yfrom the spirit and scope of my invention.` I ytherefore d form of embodiment which I have herein shown and described. lHavin described my erire to avoid being limited to vthe exactV inveniion.y what Iclaim as new and desire f to protect by Letters Patent, is

l. iin agricultural implement including a lramework made up of spaced parallel bars, front and rear ground wheels for support- .ingr the franiework,` axles for `the ground wheels on one side yof the framework andk secured to both bars of the framework, an

said means to vertically adjustfthe frame'- work with respect yto the `ground wheels, plow beams supported for swinging move ment on one of the frame bars,` and means rwhereby the plowfbeams may be adjustably connected to the other of said frame bars; y 2. rin agricultural implement including` a franiework made up of spaced parallel bars,

front and rear ground wheels'for supporting 4 the fran'iewoik axles for the ground wheels on one side of the framework and secured to both ba- 1s ofthe framework.l an axle for the forward `ground wheel on thev opposite side of the framework, means for pivotally connecting the rear end of the lastnamed axle to `one `of the frame bars7 an axle for the remaining); rear `ground'wheel7 said axle being pivotally connected to the axle of the opposite ground wheel.` means whereby the framework 'is supported for` vertical movement relative to the ground wheels, manually operable mechanism for actuating said `means to vertically adjust the frame work with` respect to the ground wheels, plow beams supported for swinging' movement on one of the frame bars, means whereby the plow beams may be `adjustably connected to the other of said frame bars, mechanism adjustable with respect to one of the yfname bars for steering the forward ground.wheelsVand manually operable means supported by the framework for steering the rear ground wheels.

In testimony whereof I affix 'my signature.

ENOCH ABNER DAVIS.