USRE22471E

USRE22471E - Side disk terracing machine

Info

Publication number: USRE22471E
Authority: US
Publication date: 1944-04-18

Description

April 18, 1944. H. HOLLIS SIDE DISK TERRACING MACHINE 3 Sheets-Sheet 1 Original Filed Jfily 16, 1941 April 1-8, 1944. HOLLIS Re. 22,471

SIDE DISK TERRACING MACHINE v Original Filed July 16, 1941 I5 Sheets-Sheet 2 INVENTOR. Wzrzeza yauiksz yxwiw fi sy April-l8, 1944. HOLLIS Re. 22,471

SIDE DISK TERRAGING MACHINE Original Filed July 16, 1941 3 Sheets-Sheet 3 a INVEN TOR.

Reissued Apr. 18, 1944 SIDE DISK TERRACING MACHINE Homer Hollis, Lillie, La., assignor to G. A. Kelly Plow Company, Longview,

of Texas Tex., a corporation Original No. 2,295,898, dated September 15, 1942,

Serial No. 402,673, July 16, 1941. for reissue September 13, 1943,

15 Claims.

This invention relates to a terracing machine, the general object of the invention being to provide a disk plow so supported that it operates between the front and rear wheels of a tractor or four wheel vehicle, with means for adjusting the parts to different positions.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawings, wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a top plan view of a tractor showing the invention in use thereon.

Fig. 2 is a side elevational view of Fig, parts of the tractor omitted.

Fig. 3 is a diagrammatic view of parts of the invention removed from the tractor.

Fig. 4 is a fragmentary sectional view showin how the disk is connected to its supporting shaft.

Fig. 5 is a view of the supporting beam.

Fig. 6 is a view of the upright to which the front end of the beam is connected.

In these views the letter T indicates a tractor which, in the present instance, has been shown as being equipped with a hydraulic type power operated lift mechanism of well-known commercial form and also disclosed specifically in Henry G. Ferguson Patent No. 2,118,180, issued May 24, 1938. This hydraulic lift mechanism comprises 1 With vertically swinging crank arms 6 and 35 on the upper rear portion of the tractor and which are used in manipulating my novel plow attachment for tractors generally in a manner, which will hereinafter appear, this particular tractor having been chosen for illustration simply by way f ex mp e of one well-known form which is suitable for th purpose.

In carrying out the invention the plow is desirably supported, in part, from the front portion of the tractor in order that the plow shall rise and fall with the rise and fall of the fore portion of the tractor in passing over the contour of the ground. As to the details of the exemplary mounting, an upright member I is fastened to the front axle of the tractor at one side thereof and a link 2 is pivoted at the upper end of this member I and the front end of a. beam 3 is pivoted to the lower end of the link so that the beam can move forwardly and rearwardly as it is moved up and down by the lifter arm 6, where-- 65 Application Serial No.

by the motion of the beam 3 is accommodated to the fore and aft movement of the arm 6 which is incident to the vertical swinging of the latter. The rear end of the beam is formed with a laterally extending arm 4 which has a sleeve 5 thereon which is connected to the arm 6 forming part of the hydraulic lift means of the tractor or if the tractor does not have this hydraulic lift means then the beam can be raised and lowered by other means. From the lifting beam 3, the plow proper is suspended in the manner next described.

The disk plow is shown at I and has its shank 8 rotatably arranged in a socketed part 9 of a shaft or pusher bar Hi, the part 9 being arranged at an angle to the longitudinal axis of the shaft as shown more particularly in Fig. 4. A collar 1 I encircles a part of the beam 3 and can be adjusted toward and away from the center of the beam and a chain l2 or other flexible member depends from the collar and is connected to the shaft in so that this flexible member 12 suspends the front end of the shaft II) from the beam 3. A bracket I3 is fastened to a side part of the tractor, preferably the rear axle thereof at one end thereof and has an arm l4 thereon to which is pivoted a bar l5 the other end of which is provided with a plurality of holes l6 any one of which is adapted to receive a bolt [1 which passes through an ear 18 on the shaft Ill. The bar [5 in its assembled position serves as a tension brace to prevent the plow 1 from being pushed sidewise under the tractor due to the reaction of the dirt on the plow 1. Also because of its special position it increases the backward thrust on shaft in to further facilitate the operation of the controls of the hydraulic lift device on the tractor to which the rear end of the shaft I 0 isconnected, as will appear below.

The rear end of the shaft in loosely fits in a ring 19 formed on the lower end of an upstanding member or link 2!], collars 2i fastened to the shaft Hl holding the said end of the shaft in position in the ring l9. lArcuate members 22 are fastened to an intermediate part of the member 20 and the front ends of these arcuate members 22 are fas tened to rear portions of the tractor as at 23 so that these members 22 can swing upwardly and downwardly. This vertical swinging motion of the bail-like structure or frame 22 accommodates the vertical displacement of the link 20 incident to its transmission of the fore and aft motion of the shaft or pusher bar H! to the control elements connected to the upper end of the link or member 20. The upper end of the member 20 is connected 'one position to the other.

by a pin 24a passing through hole 24b in such member (see Fig. 3) to a pair of bell cranks 24, which are in turn connected with the spring member 25 supported from a part of the hydraulic means. Details of this hydraulic means are welllcnown in the art and are set forth, for example, in the Ferguson patent identified above. Sufiice it to say here that the spring 25 is the usual com pression spring provided in such installations and tends to swing the bell crank 24 outward. Attached to the bell crank is the usual control plunger 25a passing through the spring 25 and controlling, by its axial movement, the admission or'exhaust of pressure fluid for the hydraulic mechanism. As is Well understood, the arms remain at rest so long as the pressure on the plunger 25a is at a predetermined value fiXedbythe spring 25, but upon an increase in the pressure on the plunger 25a above such predetermined value, its resultant shift of the plunger causes the arms Band '35 to be swung upward, whereas a diminution in pressure onth'e pl'unger below such predetermined value fa-uses the arms to lower a corresponding predetermined am'ount. That being the case, it will thus beseen thatthe ground reaction onthe plow disk 1 is transmittedas thrust through the pusher an or 'shaftlt and reacts on the spring urged 'piun'ge'r 25a, through the link 20, to vary the depth of "penetration of the disk I automaticall'y, wherefore a substantially constant draft load is maintained.

To facilitate angular or rotational adjustment of the shaft lfl'in changing the angle 'of'entry of the plow disk 'l'i'nto theg'round, a quadrant 261s :attachedby'abracket z'l to'a/part'of the-member ifll'a-hda hand lever 28 isipivotedtothe bracket 21 as at 29 and has a detentfill cooperating with the teeth of the bracket. A bar 3 l has its *upper end 'adj'u'st'aldly connected with theleVer 'ZB by a bolt 32 engagingany one of a row of holes-8'3 i-nthe lever andthe'lowe'r "end of the bar is pivoted to an arm fiwconne'cted with 'theinnercollarll so that by adjusting'the lever ZStheshaftcanbe turned orr'ockedto'adlust the 'disk '1.

The "numeral $5 indicates a'spring connecting.

thearm 35" of the hydraulicme'ans with a bracket 36*at'tache'd to arear 'part'of the tractor. This springtendsto move thehydraulic arms downwardlyto cause 'th'e plow to eng age the soil.

Thusby adjusting the beam3 by means of the hydraulicmeans the shaftlll andthe-disk can be raised and lowered to govern the plowing depth or to raise the "disk entirely-clearof the ground when it is desired to transport the apparatus from adjusted 'through means'of the hand lever 28 to provide the right plowing angle'for'thedisk in relation to the tread line of the tractor. The bar I5 will pernnt free up and"-down movement of the shaft 10 but holds it in fixed position against' any movement to either side. By changing the cutting angle of the disk through meansof the lever "1,theiriotib'nof the right forward wheel is carried to' the'beain 3 substantially unmodified by the motion of the left forward wheel. This feature is of a decidedb'enefit since the forward right wheel fisfinilindwith the plow and serves as an advance detector of the contour of the earth to be plowed.

'As willfb'e seen pressure of "the soil on the The disk can also be and. this movement is resisted by the spring means 25 acting on the upper end of the member 20, the lower end of which carries the rear end of the shaft. The transmission of the thrust on the shaft l0 through the link 20 to the spring urged plunger 25a actuates the latter to raise or lower the plow as required to maintain a sub stantially constant draft load on the plow.

While Fig. 4 shows one manner of rotatably supporting the plow l with the front end of the shaft In it is to be understood that any other suitable means-can be used for this purpose.

As the tractor moves alon with the plow I entering the soil the friction of the soil against the plow will cause it to rotate and thus a furrow is formed in front of the rear wheel and the dirt is thrown to one side of the tractor, the parts bein adjustable to make the furrow of varying depths and the plow will be caused to follow the contour of the ground as it follows the front Tight wheel which automaticall rai-sesand lowers the plo w as the "wheel passes over high and low parts 'of the ground. The angle 'of the plow can be adjusted by partly rotating the shaft ii! by m'ea'n's of the hand lever :28.

By way of brief resume "of operation, it should be observed that during transport of the =plow the disk I is, as "previously noted, raised entirely clear of the ground. For that "purpose the beam 3 is elevated by swinging the hydraulically operated arms 6, 35' upward "to their full extent through manipulation of the usual :manu'al control (not shown) for the hydraulic :lift idev'ice.

On arrival at the .point of use, the arms '8, :35' ara swung downward, lowering the beam 73 and the disk into'wo'rking:position. The operator, "through use of the lever :28, adjusts the angle of pl'owe'd fur-row and, by "virtue of the mounting of the beam '3'wi'th its forward-end 'positioned'torise and 'fall withsuehTrout wlreeLrtheplow isfraised and lowered bythe "beam a-s required Ito follow jthf contour of the' grbiin'd. Such contour followingmotion oftheIiTtbeam S is. in efie'ct, modifled by the *raising or"lowering of the arm '6 occasioned by the action bf the thrust load on the "shaft 10, 'and which is "transmitted to the controls through *thelirfk 1 0. Inother words, this transmission "of the thrust load, occasioned fb'ythe ground reaction "on tl'le plowdisk "I, is

transmitted to the control of the hydraulic lifter "device and serves'twmaintain the depth of pene- "tratlon for 'the'ifplows'uch that'a substantially uni- "plow "will tend to move the shaft o reaiwa'rdlyzws form draft load is retained despite changes in character ofthe's'oil' beingplowed, etc.

It is thought 'from't'he "foregoing description that the advantages and novel features of the invention will be readily apparent.

n. i sto'be understood that changes may be made in the menstruation and in .thecombina- -tion and arrangement of 'the .several parts j, provided that such changes Ifall within 'thescope of the appended v claims.

I claim as myinvention: 1.-In -a 1 four wheel vehicle, an :upright exment with the front end of the shaft, a member depending from the beam and connected with the front part of the shaft, means for rotatably supporting the rear end of the shaft, said shaft extending forwardly and outwardly with the disk located substantially between the front and rear wheels at one side of the vehicle and means for raising and lowering the beam.

2. In combination with a four wheel vehicle, an upright connected to the front axle thereof adjacent one side thereof, a link pivoted at its upper end to the other end of the upright, a beam having its front end pivotally connected with the lower end of the link, means for raising and lowering the rear end of the beam, a flexible member depending from the beam intermediate the ends thereof, a shaft having its front portion connected with the lower end of the flexible member, a disk rotatably connected with the front end of the shaft and arranged at an inclination to the shaft, means for rotatably supporting the rear end of the shaft with the shaft extending forwardly and outwardly with the disk arranged substantially between the front and rear wheels at one side 01' the vehicle and means for rocking the shaft.

3. In combination with a tractor having hydraulic lift means, an upright connected with the front axle of the tractor at one side thereof, a beam having its front end pivotally and swing ably connected with the upper end of the upright, means for connecting the rear of the beam with the hydraulic means, a flexible member adjustably connected with an intermediate part of the beam, a disk carrying shaft having its front end connected with the lower end of the flexible member, the disk having its hub arranged at an inclination to the length of the shaft, means for holding the shaft against sidewise movement, means for rotatably supporting the rear end of the shaft, a hand lever connected with the tractor, and means actuated thereby for rocking the shaft to adjust the inclination of the disk.

4. In a cultivating vehicle having a forward and a rear axle, a lifting beam, movably connected to the forward axle and movably connected to the body of the cultivating vehicle, a shaft, a disk rotatably connected to the shaft, a lifting member connected to the shaft and the lifting beam, means for rotatably supporting the shaft, said shaft extending in a forwardly direction with the disk located substantially between the front and rear axles of the cultivating vehicle and means for raising and lowering the beam.

5. In a cultivating device for attachment to a tractor having a lifting device thereon, the combination of a lifting beam, means for movably connecting said beam to a forward portion of the tractor, a shaft, a disk rotatably connected to the shaft, a lifting member connected to the shaft and the lifting beam, means for rotatably supporting the shaft on the tractor with the shaft extending in a forwardly direction and with the disk thereon located substantially between the front and rear wheels of the tractor, and means for connecting said lifting beam to the lifting device on the tractor.

6. In a terracing plow attachment for a tractor having a power actuated lift means on its upper rear portion, the combination of a lifting beam, means for pivotally supporting the front end of the beam on the front portion of the tractor to rise and fall with the same and with the beam extending generally rearwardly alongside the body, of the tractor, means for detachably connecting the rear end portion of said beam to the lift means on said tractor to utilize the lift means for swinging the beam vertically about its front end pivotal connection, a pusher bar having means on one end portion thereof for connecting the same to the rear portion of the tractor with the bar projecting generally forwardly in position to be thrust forward by the tractor as the latter advances, a plow disk revolubly mounted on the front of said pusher bar, and means for suspending the forward portion of said pusher bar from said beam to move in a vertical direction with the latter.

7. In an implement attachment for a tractor having a power actuated pivoted arm on its upper rear portion swingable in a fore and aft direction as an incident to raising and lowering the same, the combination of a lifting beam adapted to extend generally horizontally alongside the body of the tractor, means for connecting the rear portion of the beam to the arm on the tractor for raising and lowering thereby, means including a generally vertically extending member pivotally connected at one end thereof to the forward end of the beam and adapted to be pivotally connected at its other end to the fore portion of the tractor for supporting the front end of the beam to rise and fall with the front end of the tractor while accommodating fore and aft motion of the beam incident to vertical movement of the beam by the arm on the tractor, a ground engaging implement, and means for supporting such implement, at least in part, by said beam.

8. In an implement attachment for a tractor having a power actuated pivoted arm on its upper rear portion swingable in a fore and aft direction as an incident to raising and lowering the same, the combination of a lifting beam adapted to extend generally horizontally alongside the body of the tractor, means for connecting the rear portion of the beam to the arm on the tractor for raising and lowering thereby, means including a generally vertically extending member pivotally connected at one end thereof to the forward end of the beam and adapted to be pivotally connected at its other end to the fore portion of the tractor for supporting the front end of the beam to rise and fall with the front end .of the tractor while accommodating fore and aft motion of the beam incident to vertical movement of the beam by the arm on the tractor, a pusher bar having means on one end portion thereof for connecting the same to the rear portion of the tractor with the bar projecting generally forwardly in position to be thrust forward by the tractor as the latter advances, a plow disk revolubly mounted on the front of said pusher bar, and means for suspending the forward portion of said pusher bar from said lifting beam.

9. In a cultivating attachment of the general type set forth, the combination of lifting beam and a, pusher bar adapted to be disposed one above the other in the order named alongside a tractor, a flexible line suspending the fore portion of the pusher bar from an intermediate portion of the lifting beam, a disk mounted on the forward end of the pusher bar, means for anchoring the rear end of the pusher bar on the rear portion of a tractor, and means for connecting the front and rear portions of the beam respectively to the front portion and body of a tractor with the beam extending generally horizontally.

10. In a disk type plow, the combination of a pusher bar having means on the rear portion thereof for connecting it to a vehicle with the bar extending forwardly and slightly laterally of the path of advance of the vehicle, a plow disk, means for revolubly supporting said disk on the fore portion of the pusher bar with the axis of revolution of the disk slightly angled with respect to the longitudinal axis of the bar and with said axes substantially intersecting each other, and means for. rotatively adjusting said bar about its longitudinal axis to vary the angle of entry of the disk into the ground.

11. In an implement of the type set forth, the combination with a revolubleplow disk, of a support therefor rotatively adjustable about an axis slightly inclined with respect to the axis of rev0- lution of the disk and disposed with said axis of adjustment substantially intersecting said axis of revolution.

12. In a disk plow attachment for a tractor having a yieldable spring device thereon, the combination of a pusher bar having a plow disk on its fore portion, means for supporting said pusher bar from the tractor in position to project generally forwardly beneath the tractor, and means including a link connecting the rear portion of said pusher bar to the spring device on the tractor to effect ayielding resistance by the spring device to endwise motion of the pusher bar under the influence of ground reaction on said plow disk.

13. In a disk plow attachment for. a tractor, the combination of a pusher bar having a plow disk on its tore portion and adapted to extend generially forwardly in the direction of advance of the tractor, an upstanding link connected at its lower end to the rear portionof the bar and adapted to be connected at its upper end to a movable element of a hydraulic device on the tractor, and. a supporting device connected to the intermediate portion of said link and adapted to besecured to the rear of the tractor.

1.4. In .a disk plow attachment for a tractor, the combination of a generally horizontal frame having a pair of arms shaped to embrace a rear portion of the tractor and having means on such arms for pivotally connecting the frame to the tractor for generally vertical movement, an up standing link pivoted intermediate its ends to an intermediate portion of said fram and being adapted for connection of its upper end to amovable element of a hydraulic device on the tractor, a pusher bar having ,a plow diskion its fore portion, and means for connecting the rear end portion of the bar to the lower end of said link. and with the bar extending forwardly and laterally i beneath the frame.

,30 on its fore portion, of means for transmitting thrust from the pusher bar to the control partof the tractor.

HOMER .HOLLIS.