US936768A - Gang-plow. - Google Patents

Description

J. 0. FJARLI.

GANG PLOW. APPLIOATION FILED JULY 2, 1908.

Patented Oct.12,1909.

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4 SHEETSSHEBT 1.

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J. O. FJARLI.

GANG PLOW. APPLICATION FILED JULY 2, 190a.

Patented Oct. '12, 1909.

4 SHEETS-SHEET 3.

Y vweuroz J. 0. PJARLI. GANG 1.0w. APPLIOATIOTI PILBDJULY 2, 1908.

- 9 v Patented 0ct.12,1909.

4 SHEETS-SHBBT 4.

I alvwcutoz Witness UNITED STATEg JOHN o. FJARLI, or BEnwIcK, NORTH DAKOTA.

Graham.

To all whomit may concern."

Be it known that 1, JOHN O. FJARLI, a citizen of the United States, residing at Berwick, in the county of McHenry and State of North Dakota, have invented certain new and useful Improvements in Ganglflows, of which the following is a specificatlon. Y

This invention relates to certain new and useful improvements in gang plows, such as are drawn by traction or other power vehicles, or are operated by self contained power.

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

Another object of the-invention is to so time the raising and lowering of the plows of a series relatively that the furrows cut will begin and end at the sanie point.

The above and other characteristic features of the invention are fully illustrated in the accompanying drawings forming a part of this specification and wherein] e numera'ls of reference designate corresponding" parts throughout the several views in which: Figure l is a top plan view, Fig. 2 is a side elevation thereof, Fig. 3 is a vertical longitudinal section, Fig. l is a top plan view of one of the plow frames, Fig. 5 is a detached elevation of the clutch device partly broken away in section, Fig. 5 is a similar view showing the parts in another position, F 6 is a horizontal sectional view through Fig. 5. Fig. 7 is a vertical sectional view through portions of the vehicle frame and one of the plow frames. Fig. 8 is a sectional view showing the swivel connection for the plow frames. taken on line 8-8 of Fig. -I-. Fig. 9 is'a side elevation of the segments for operating the plow frame raisin and lowering chains, and Fig. 10 is a side elevation, partly in section showing the position of the plows and their supporting frames lifted from the ground. v

Reference numeral 1 designates the vehicle frame, Qone of the traction wheels therefor, and 3 the other traction wheel from which the plow raising and lowering mechanism is operated. The front bar l and side bar 5 of t 1e said vehicle frame are at right angles to each other and are c o 'ne'ct edfby diagonal bar 6 which forms the rear end of the triangular frame so formed. The tongue Specification of was was.

Application med July a, 190s. Serial No. 441,604.

Patented ca. 12, mos.

or draw-bar 7 which extends longitudinally throu h the center of the vehicle frame is provi ed 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 sides of the. rear ends of plow frames, 9, 10, 11 and 12 ?These plow frames are alike and the-one designated bynumeral-Q is selected for detail description.

The "low frames, as seen in Fig. 4, consistof side ars 4, 14 to which the plow blades 8 are secure and the front ends of these side-bars are connected by a cross-bar 15. Between the ends of the side-bars 14:, 141 the said bars are connected by a pivot rod 16 which extends through the rear ends of a swivel-fraiiie 17 thereby pivotally supporting 'the low frame. The swivel frame 17 is swive ed to a clevis-shaped member .18 by bolt 19, and movement of the said parts is limited by bolts or pins 20 (see Fig. 8) incurved slots 21 formed in theswivel frame 17. At its forward end the elevis-shaped frame 18 is swingingly connected for verticiil movement to a plate 22 by means of a. bolt 23 passing through side flanges 24 see Fig. 7) ofthe plate. This plate in turn is secured for horizontal swinging movement by being secured between the folds of a substantially U-shaped member 25 by means of king bolt 26, and the said member 25 is rigidly attached in any desired manner to the vehicle frame 1. Thus it will be vseen that the plow frames are capableof nunicrlever 33 capable of being locked in adjusted position by ratchet and segment 34,-.

During the operation of plowing, plow frame parts assume the position 1 s trated in Fig. ate. with the plow blades enteringthe ground and the gage wheel rolling over the surface of the uncut soil and the froiit eiid of the plow frame tilted downward. When the plows are lifted out complished by chains 35-, 36, 37 and 38, at-

. tached to the plow frames between the ends The segment 41 to which the as being operated by sprocket chain 52 from.

thereof and to operating mechanism to be hereinafter described.

. The operating chain 35 as seen in Fig. 10 is attached to the plow frame 9 so that the greater weight will be in the rear of the point of attachment, whereby, when the plow frame is, lifted by the chain, the greater weight of the plow blade endwill 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 swivel frame 17 will be moved upwardly and swung on its pivot 23. By this construction, it will be seen that the tendency will be for the forward or point ends of the plow to leave'the ground first.

On the forward end of the vehicle frame is jonrnaled a transverse shaft 40, provided at equidistant points in line with the plow frames with roller segments 41, 42, 43 and 44. The raising and lowering chains 35, 36, 37 and 38 for the plow frames pass over roller brackets 45, 46, 47 and 48 to the said roller segments 41, 42, 43 and 44 respectively.

other segments 42, 43 and 44 are similar, is substantially a lever arm and is provided with corner rollers 49 over which the chain 35 passes to a point where the said chain is attached to the vehicle frame, as designated by numeral 50 in Fig. 2, and ,the same is true regarding the other chains and segments.

At a suitable point 011 the shaft 40 is arranged a loose gear wheel 51, illustrated spocket wheel 53 on the axle of the traction wheel 3, though a suitable motor may be mounted on the frame of the machine for continuously rotating the gear o1; sprocket wheel 51.

having an extension 57 to which and one arm Keyed to the shaft 40 is a lock disk 62' formed with diametrically opposite. lock portion of the ratchet lever 55 is pivotally attached a link 58 by means of whichnotches 63and 64 as illustrated in Fig. 3. Journaled 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 crank arm 68. This rockshaft is provided with stop-arm 66 adapted to engage in notches 63 and 64 of lock disk 62, and also provided with trip arm having a roller end 71 arranged in the path of the bell crank ratchet levers 55 and 56 and both arms 62 and 70 are normally held against 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 the gangs it will be apparent that if all were lifted or lowered into the ground at the same time, the furrows would not begin or stop at the same point, hence the segmental lifting arms 41, 42, 43 and 44 are set or keyed on the shaft at different relative points as illustrated in Fig. 9, so that the plow blades on plow. frame 12 will leave the soil first and the others follow successively in lifting; and in lowering, the said same plow frame 12 will be lowered first and the others will follow successively.

The operation is as follows: As the plow vehicle moves over the ground, power is transmitted through sprocket chain 52 to the main sprocket wheel 51 which loosely turns on the shaft 40 in the direction of the arrow in Figs. 5 and 5. The shaft 40 is prevented from turning by the lock arm 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 path of the ratchet or clutch levers 55, 56,

so as to swing said ratchet levers on their pivots to disengage the roller ends 55) thereof from the ratchet notches 61. In Fig. 5, the trip arm 70 is illustrated as being in, engagement with the ratchet lever 56 and pressing the roller end 59 thereof out of the notches 61 and as the other ratchet lever 55 is linked with said ratchet lever 56 both Keyed to the shaft 40 (see Fig. 5) is a; casting 54 comprising two diametrically dis- 5 posed radial arms, to the outer end of one-of which is pivoted a bell-crank ratchet leveror arm 55 and to the other arm is pivoted another bell crank ratchet lever or arm 56' rollers 59 are out of the notches and the sprocket w-heel '51 is permitted to turn independently of the shaft 40. The plow blades being in the ground as illustrated in Figs. 2 and 3 and it is desired to raise the same, the operator depresses foot. lever 66 and through the agenc of link 67, the lock lever 69 is withdrawn fi om the notch in the lock disk 62 and the tri lever 70 (Fig. 5 simultaneously mover? in the direction 0 the arrow to disengage ratchet le er. As the said ,ratchet lever 56 is disengaged, the spring 60 and link 58 will cause the rollers '59 to enter the ratchet notches 61 and thereby cause the shaft 40. to turn with the sprocket wheel 51. The foot lever now being released, the spring 72 (Fig. 3) will return the lock arm 69 and trip lever 70 to their initial positions. After the'sproeket scenes 'wheol to again rotate loosely and independently on the shaft l0 'until the foot lever is again depressed to lock the shaft 40 to turn another half revolution ,with the sprocket wheel 51. As the shaft -10 turns the halfrevolution first described, the segmental lifting arms ell, 42, 4:3 and -14 will successively tighten and draw in their re-' spective chains 35, 36, 37 and 38 to successively lift the plow frames 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 66, the lifting segments or arms will be returned to their first positions thereby paying out the 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 Mat :51 will fall into one of the-notches 61 in the trip wheel 51 and prevent the shaft 40 and 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 case due to the great weight of the plows and tension (1.1 thechains were the said safety pawl 80 not provided.

Having fully described the invention, what is claimed as new and useful and desired to be secured by Letters Patent is:-

1. In 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 locking the shaft against rotation on everyhalf revolution thereof.

In combination with avehicle frame and plows carried thereby, of a shaft on the said frame, means on said shaft for ralsing the plows on one halfrevolution of thee 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. In combination with a vehicle frame and plows carried thereby, of a shaft on the said frame',' nieans on said shaft for raising the plows on ahalf revolution of the shaft and for lowering the plows on the other half revolution of the shaft, a disk or-wheel on the shaft, and means adaited to automatically engage the disk at iametrically opposite points to lock the shaft against rotation on every half revolution thereof.

4. In 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 half revolution of the shaft and for lowering the plows on the other half revolution of the shaft, a disk provided with diametrically opposite stops, and means adapted to come into engagement with said stops to lock the shaft against rotation on every half revolution of the latter.

5. In combination with a .vehicle and plows carried thereby, of a shaft, means on the shaft for raising the plows during one half revolution andforlowering the plows during the other half revolution of the shaft, a normally rota-ting element, means rotatably connecting the shaft with said element, and means for automatically disconnecting the shaft from said element on every half revolution of the shaft.

6. In combination with a 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 rotatably connecting the shaft with said element, means for bringing the shaft to a full stop on every half revolution, and means for' lockingvhe shaft on every half revolution.

7. In a device of the character described, in 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'b'eing adapted to interlock with the said element, and a trip device adapted to engage the ratchet lever to disengage the same from said element, and means for engaging said ratchet lever with the said element when the ratchet lever is released by the said trip lever to cause the shaft to rotate with said element.

8. In a device of the character described, in combination'with vehicle and plows, of a continuously rotating element, a shaft adapted to be coupled and uncoupled with the said element, means operated by the shaft to raise and lower the plows, oppositely disposed ratchet levers carried by the shaft, a trip device adapted to engage the ratchet levers successively to disengage the same from said element on every 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 lever to cause the JOHN O. FJARLI.

' WVit'nesses:

A. M. Ciims'rIANsoN,

ALBERT WEBER.

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