USRE14017E - Gang-plow - Google Patents

Description

1. 0. FJARLI.

GANG PLOW APPLICATION FILED .AUG- 25, llll'l.

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Reissued Nov 23, 1915 W/TNES/s f- Lkw.

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1. 0. HARM'.

GANG PLOW.

APPLICATION FILED AUG.25. 19|]- 4 suini-SHEET a.

Reissued Nov. 23, 1915.

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GANG PLow. APIPLICATIDN FILED AUG-25| 19H.

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Rei'ssued 1NOV, 23, 1915.

Un lTTED STATES PATENT oEEIcE.

JOHYN 0. EJRLI, 0F BERWICK, NORTH DAKOTA, SSIGNOR TO J. B. BARTHOLOMEW, 0F

PEORIA, ILLINOIS.

GANG-PLOW.

Speccation of Reissued Letters Patent. Reissued XOV.' 23, 1,*915.

Original No. 936,768, dated October 12, 1909, Serial No. 441,604. Application for reissue filed August 2i,

To all ywhom 'it may conce/rn: y

Be it known that I, JOHN O. F JARLI, a citizen of the United States, residing at Berwick, in the county of McHenry and State of North Dakota, have i-nvented certain new and useful Improvements in Gang-Flows, of which the following is a. specification.

Thisinvention relates to certain 'new and useful improvements in gang plows, such as are drawn by traction or other power` vehicles, or are `operated bv self contained power. A

The main object of the invention is toprovide means for raising'the plows out of the soil and for lowering the same into the soil at will through means operated from the traction wheel of the plow.

Another object ofthe invention is to so time the raising and lowering of the plows of a series relatively that, the furrows out, will begin and end at the same point.

The above and other characteristicl features of the' invention are fully illustrated in the accompanying drawings forming a part of this specicationand wherein like numerals of reference designate corresponding parts throughout the several views in which:

Figure 1 is atop plan view. Fig.'2 is a side elevation thereof. Fig. 3 is a vertical longitudinal section. Fig. 4 is'a top-v plan view of one of the plow frames. Fig. 5 lis a detached elevation ofthe clutch device partly broken away in section. Fig. 5 is a v similar view showing the parts in another position. Fig. 6 lis a lhorizontal sectional view through Fig. 5. Fig. 7 1s a vertical sectional view through portions of. the vehicle frame and one of the plow frames.

lFig. 8 Iis a sectional View showing the swivel connnection for the plow frames, taken on -line 8 8 of Fig. 4. Fig. 9 is a side elevation of the vsegments for operating the plow frame raising and lowering chains. Fig. 10 is a side elevation, partly in section showing theposition of the plows and their supporting frames lifted from the, ground.

Reference numeral 1 designates the vehicle frame. 2 one of the traction Wheels l therefor, and 3 the other traction Wheel from ,which the plow raising and lowering mechanism is operated. The front bai' 4 and vside bar 5 of the said vehicle frame are at limited by bolts or Serial No. 646,073.

frame isprovidcd at its front end with any suitable/coupling for attachment to a traction engine or other agricultural machine; though it will be understood that the motive power may be self contained either to drive the whole machine or only the plow raising and lowering mechanism. The plow blades 8 are mounted in duplicate on opposite sidesof the rear ends of plow frames 9, 10, 11 and 12.. These plow .frames are valike and the one designated by numeral 9 is .selected for'de-tail description.

The plowA frames, as seen in Fig. 4,- consist of side bars 14` 14 to which the plow blades 8 are secured, and the front ends of these side-bars are connected by across-bar 15. Between the ends f the side- bars 14, 14. the said bars are connected by a pivot `rod 16 which extends throughthe rear ends of a swivelframe 17 thereby pivotally supporting the plow frame. The swivel frame 1TV is swiveled'to a clevis-shaped member 18 by bolt 19, and movement of the said parts' is pins 20 (see Fig. 8) in curved slots-21formed in the-swivel frame 17. At Qits forward end the clevis-shaped frame 18 is swingingly connected for vertical movement 'to a plate 22 by means of a bolt 23 passing through side flanges 24 (see Fig. 7) of the plate. This plate' in turn is secured for horizontal swingingv movement by being secured between t-he folds of a substantially -U-shaped member 25 by means of kinglbolt 26, and the said member 25 is rigidly attached in any desired manner to the vehicleframe 1. 'Thus it will be seen that the plow frames are capable of numerous and practically universal movements to compensate4 for any irregularities in the ground or movement of the vehicle. A gage wheel 27 depends from brackets 28 pivoted to the forward end of the plow, frame at 29, and said gage wheel mav.be adjusted to vary the cu through the medium of links 30 and crank arm 31 .of shaft 32, which shaft32 is operated by hand lever 33 capable of being locked in adjusted position by ratchet and Segment 34p.

During the operation of plowing the plowframe parts assume the position illustrated in Fig. 2, e. with the plow blades entering the ground and the gage wheel rolling over the surface of the. uncut soil and the front end of the plow frame tilted downward. lfVhen the plowsare lifted out of the soil, the plow frame parts assume the positions illustractedin Fig-10. vThe raising and lowering of the plow frames are accomplished by chains 35, 36, 37 and 38, attached to the plow frames between the ends thereof and to operating mechanism to be hereinafter de scribed.

Theoperating chain 35 as seen in Fig. 10 is attached to the plow frame 9 so that the greater weight will be in the rear o-f the point of. attachment, whereby, .when the plow. frame is lifted by the chain, the greater weightof the plow blade end will cause the forward end of the frame to be drawn upwardly until the said cross bar .15 contacts with the swivel frame 17 when the said i swivel. frame A17 vwill bev moved upwardly4 and swung on its pivot 23. By this co-nstruction, it will be seen that the tendency will-be for the forward or point ends of the plow to leave the ground first.v

On the forward. end of the vehicle frame is journaled a transverse shaft 40, provided at equidistant points in line with theplowy framespwith roller segments 41, 42, 43 and 44. The raising and lowering chains 35, 36, 37 and 38 for' the plow frames passV over roller brackets 45, 46, 47 and 48 to the said roller segments 41, 42, 43 and 44 respec. tively. The rsegment 41 to which the other segments 42, 43, and 44 are similar, is sub-l stantiallyr a lever arm and is-provided with corner rollers 49 over which the chain 35 passes to a point where the said chain 1s attached to the vehicle frame, as designated by numeral 50 vin Fig. 2, and the same is true regarding the other chains and segments.

At a suitable point on the shaft 40 is arranged a loose gear wheel 51, 'illustrated' as being operated by sprocket chain 52 from sprocket i'vheel 53 on the axle of the traction wheel 3, though a suitable `motor may be mounted on the frame of themachine for `continuously rotating the gear or sprocket wheel 51.

Keyed to the shaft 40 (see Fig. 5) is a casting 54 comprising two diainetrically disposed radial arms, to the outer end of one of which is Vpivoted a bell-crank ratchet lever 'or arm 55 and to the other arm 1s l pivot'ed ano-ther bell-crank ratchet lever' or arm 56 having an extension 57 to which and.

one arm portion of the ratchet lever55is pivotally attached. a link 58 by means -of which both bellcrank ratchet levers or arms 55 and 56l are caused to move together. One portion of each of said levers 55 and 56'is provided with a friction roller 59 and these roller ends are normally placed or forced by springs 60 into the ratchet notches 61 formed in the inner face of the rim of the said gear or sprocket wheel 51.

Keyed to the shaft 40 is a lock disk 62 formed with diametrically opposite f lock notches 63y and 64 as illustrated in-F ig. 3. J ournaled in the vehicle' frame and parallel with shaft 40 is a rock`shaft 65 which is operated from a foot lever 66 by means of link 67 and crankarm 68. This rock shaft is provided Awith stop-arm 69 adapted to engage in notches 63 and 64 of lock disk 62, and also provided withtrip arm 70 having a roller end 71 arranged lin the path of the. bell crank ratchet levers 55 and 56 and both arms 62 and 70 are normally held againstv lock disk 62 and in path of said ratchet arms respectively by means of the spring 72 shown in Figs. 2 and 3.

Owing to the diagonal arrangement. of.A

thega-ngs it will be apparent that if all were lifted or lowered into. 'the ground' at the same time, .the furrows 'would not begin or stopl at .the same point, hence the segmental lifting arms 41," 42, 43 and 44 areset" or keyed on the shaft at different relativepoints as illustrated in Fig. 9, so that .the plow blades on plow frame 12 will leave the soi-l first and the other follows'uccessively in lifting; and in lowering, the'said same plow frame 12 will be lowered first and the others will follow successively.

The operation isasfollows: As the plow vehicle moves over the ground, power is transmitted thro-ugh sprocket chain 52 to the main sprocket wheel 51 which loosely turns` on the shaft 40 in ythe direction Yof'the arrowin Figs. 5 and.54.` The shaft 40 is prevented from turning by the lock Yarm .69 engaging in one of the notches 63, 64 of the lock disk 62. The trip-arm 70 being also keyed on the rock shaft 65 has its roller end 71 in the pathlof the ratchet or clutch levers 55, 56, so as 'to swing said ratchet .levers on .their pivots to disengage the roller ends 59 thereof from the ratchet notches 61'. In. Fig. 5', the trip arm 70 is illustrated as bef ing in engagement with the ratchet lever 56 andpressing the roller end 59 thereof out of the notches 61 and as the other ratchetlever 55'is linked with said ratchet lever 56/both rollers 59 are out of the notches and the sprocket wheel 51- is permittedto turn independently' of the shaft 40. The plow blades being in the ground as illustrated in Figs.` 2 and 3 and it beingdesiredto raise the same, the operator depresses foot lever 66 and through the agency of link 67 the lock lever, 69 is withdrawn from the notch` in the lock disk 62 and the trip lever 70 (Fig. 5) simultaneously moved in the di rection of the arrow to disengage the ratchet lever. As thesaid yratchet lever 56 is disengaged, the spring 6() and link 58 will cause the sprocket wheel l.

the rollers 59 to enter the ratchet notches 61 and thereby cause the shaft 40 to turn with The foot lever now being released, the spring 72 (Fig. 3) will return the lock arm (39 and trip lever 70 to their initial positions. After the sprocket wheel 51, lock disk 62 and shaft a0 have turned one-half revolution, the lock arm G5) will fall into the other notch G3 in the lock disk (32 and the trip'arm T0 will engage the other ratchet lever to withdraw the rollers 59 from engagement with the ratchet notches (il and permit the main sprocket wheel 51 to again rotate loosely and independently on the shaft al-0 until the foot lever isy again depressed to lock the shaft 40 to turn another half revolution with the sprocket wheel 51. As the shaft et() turns the half revolution first described, the segmental lifting arms 4:1, 42,443 and LH will successively tighten and draivl in their respective chains 35, 36, 37 and 38 to successively lift the plow f'rames and their plow, blades from their lowered or plowing' positions. As the shaft 40 makes the other half revolution, which it will of course be understood is only made at the 'will of the operator upon depression of the foot lever G6,

thel chains .and successively lowering the plow frames and blades to their plowing positions. During the lowering of the plow frames a safety pawl 80 pivoted to the casting 5J: at 8l will fall into one of the notches (il in the trip wheel 51 and prevent the shaft lOand trip parts from moving faster in the direction of the arrow in Fig. 5 than the movement of the sprocket or trip wheel, which would be the ease due to the great weight of the plows and tension thereby paying out on the chains were the said safety pawl 80 not provided.

lVhat l claim is fl. The combination with a vehicle frame, and .plows carried thereby, of a shaft on the said frame, means on said shaft for raising the plows on one half revolutioi'i of the shaft and for lowering the plows on the other half 4 revolution of the shaft, and means for locking the shaft against rotation on every revolution thereof. Y

2. The combination with a vehicle frame, and plows carried thereby. of a shaft on the said frame, means on said-shaft for raising the plows on one half revolution of the shaft and for lowering the plows on the other half revolution of the shaft, and'means for automatically locking the shaft against rotation on every half revolution thereof. 3. The, combination with a vehicle frame and plows carried thereby, of a` `shaft on the said frame, means on said shaft for raising the plows on a the shaft and for lowering the plows other half revolution of the Shaft,

on the the lifting segments or arms will be returned to their first positions half I half revolution of l a disk* or wheel on the shaft, and means adapted to auton'iaticallyengage the disk at diametrically opposite. points to lock the shaft against rotation on every half revolution thereof.

l. rl`lie combination with a vehicle frame and plows carried thereby, of a shaft on the s-aid frame, means on said shaft for raising the plows on a half revolution of the shaft and for lowering the plows on the other half revolution of the shaft, a disk provided with diaiiietri-cally opposite stops, and means adapted to come into engagement with said stops to lock tation on every half revolution of the latter.v

5. The combination with a vehicle and plows :arried thereby, of a shaft, means on the shaft for raising the plows during one half revolution and for lowering the plows during the other normally rotating element, means connecting the shaft'Y with said element, and means for, automatically disconnecting the shaft from said element on every half revolution of the shaft.

The combination with ya vehicle and plows carried thereby, of a shaft, means on the shaft for raising the plows during one half revolution and for lowering the plows during the other half revolution of the shaft, a continuously rotating element, means connecting the shaft with said element, means `for bringing the shaft to a full stop on every half revolution, and means for locking the shaft on every half revolution.

7. ln a device of the character described, the combination with a vehicle and plows, of a continuously rotating element, a shaft, means operated by 'the shaft to raise and lower the plows, a ratchet lever pivotally connected with the shaft and being adapted to interlock with theI said element, a trip device adapted to engage the ratchet lever to disengag'e the samev from and means for engaging said ratchet lever i withlthe said element when the ratchet lever is released by the said trip lever to cause 'the shaft to rotate with said element.

S. lii a device of the character described, the combination with a vehicle and plows, of a continuously rotating element, a shaft adapted to be coupled and uiicoupled with the said element`r means operated by the shaft to raise and lower the plows, oppositely disposed ratchet levers carried by the shaft, a trip dcvice adapted to engage the ratchet levers, same -from said element on cvei'y half revolution of the shaft, and means for placing said ratchet levers in engagement with said element when one of the ratchet levers is released by the said trip ylever to cause the shaft to rota-te with said element.

9. In a device of the character the combinationwith a vehicle described,

the shaft against rosaid element,

successively to disengage the secured at one end nal series of plows carried thereby, of a rigid shaft rotatably mounted on the vehicle, a series of crank arms on the shaft, connections between the crank arms and the plows for raising and lowering the latter, said crank arms being set in such angular relation as to successively raise and lower the plows when the shaftA is turned.

In a device of the character described,

vehicle and a diagoplows connected thereto, of a rigid shaft rotatably mounted on the vehicle, and the shaft for alternately lifting' and lowering the plows in automatically timed successive relation to each other when the' shaft is turned.'

11. .In a device of the character described,

the combination with a vehicle and a diagorigid shaft rotatably mounted on the vehicle,l

ering the plows in succession.

the combination with a vehicle agonally arranged series of plows thereto, of a rigid shaft rotatably onl the vehicle, a

and a diconnected ,series of crank arms shaft, and a series of leXi'b passing thence vover one of the crank arms and secured at its other plows, the arrangement successively liftA the plows when the shaft 1s rotated.

y tatively erated b 13. Ina device of the characterdescribed,

the combinationv 'with a vehicle and at series of plows'conne'cted thereto, of ajcontinu ously rotating element, a second element romoiinted onfthe vehicle, means opv second .element to raise and lower'theplows, aratchet lever connected to one of said elements and adapted to interwith the oth the ratchet lever 'from the element with which 14. In a device of the character described,

'the combination with `a vehicle-and a diagonal series oi'' plows connected thereto, mechthe device of the character described' mounted in angularly spaced relation on the means for driving said mechanism, connec` tions between said mechanism and driving means that are normally disengaged, means comprising ailever adapted in its position to cause disengagement and when said position to caus'e engagement of said connections, and means for automatically returning the lever, when moved, to its normal position.

l5. In a device of the character described, combination with a vehicle and a diagonal series of plows connected thereto, of mechanism for successively lifting the plows, a control lever adapted, when moved in one direction, to cause the actuationvof the lifting mechanism, and means for automatically returning said lever to its initial position.

16. In a device of the character described, the combination with a vehicle and a diagonal series o plows connected thereto, or hanism for lifting the plows successively, means for driving said mech means actuated independently of said driving means for automatically positively disengaging the driving means from the lifting mechanism when the plows have beemlitted.

17. In a plow, the combination .of a `iframe, a wheel on which the frame is mounted, a 4to the frame, a hoisting ly engage the gearing and automatically operated to disengage the `same.

In a device of the character described, the combination with a vehicle comprising one or more ground wheels, and a seriesof plows connected to said vehicle, of manually controlled mechanism driven from one of the ground Wheels for said plows being adapted to be lowered by gravity and ineansa controlled by the movement oia the driving ground wheel for causing the gradual lowering of the plows.

HN O. FJARLI. Witnesses:

' A. J. BLIYEN,

y ALBIN N rsTRoM.

addressing the `Commissioner of Patents,

operated to oplifting the plows,

anism, manu-` ally controlled-means for connecting the

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