US462416A - sobey - Google Patents

Description

(No Model.) W SOB-EY 3 sheets-sheet 1.

SULKY PLOW.

110.462,416. Patented Nov. 3,1891.

(No Moa/e1.) 1 s sheets-sheen 2. W. SOBEY.

SULKY PLOW.

No. 462,416. Patented Nov. 8,1891.

3 Sheets-Sheet 3. W. SOBEY. SULKY PLOW.

(No Model.)

'Patented Nov. 3,1891.

raras PATENT OFFICE.

AWILTAM SORRY, 0F RACINE, VISCONSIN, ASSIGNOR T() THE .`l. l. CASE PLOV lVORKS, F SAME PLACE.

SU LKY- PLOW.

SPECIFICATION forming part of Letters Patent No. 462,416, dated November 3, 1891.

Application led November 26, 1890i Serial No. 372.723. (No modell To all whom t may concern: traveling faster than theheel shall be rst pre- Be it known that l, WiLLIAM SOBEY, a citisented to and caused to quickly enter the soil, 5 Zen of the l'nited States, residing at Racine, and then as the rear furrow-wheel drops into in the State of llfiscoiisiii, have invented certhe furrow the bottom edge of the plow will 5 tain new and useful Improvements in Sulkybe brought to the desired working inclination. Plows, of which I do declare the following to Moreover, as the point of the plow travels be a full, clear, and exact description, referfaster than the heel of the plow, when the op- 6o ence beinghad to the accompanying drawings, erating-lever is reversely shifted to raise the forming part of this specification. plow from the ground the point will be given io My present invention has relation more paran upward inclination that will cause the ticularly to that class of sulky-plows known plow to rise quickly from the furrow. as three-wheel plows,"7 two of the wheels be- A further objection incident to the prior 65 ing furrow-wheels and the third wheel being constructions of this class of plows in which the land-wheel.77 In the construction of this the uniform vertical movement is imparted class of plows it has been heretofore proposed to the plow is that if the plow is set with its to mount the plowbeam upon its sustainingbottom edge at the proper angle for plowing frame by means of two cranks or links inter- (and this angle will be very slight for plowingr 7o posed between the plow-beam and the frame. certain kinds of soil) the point of the plow is These cranks or links have been of uniform presentedto the soilat suchaslightinclination 2 0 length and have been set in such position that itisnecessaryfor the operatorto usemuch with respect to each other as to move in unigreater force than would be required if the son and produce a straight vertical lift of the point of the plow were presented at a greater 75 plow-that is to say, an equal movement of inclination, so as to cause it to irst enter the the toe or poin t and heel of the plow. An obground. By my present invention in providjection incident to this construction is that, ing that theplow-pointshall be Iirst presented inasmuch as both the toe or point and heel to the soil and at an inclination considerably of the plow had imparted thereto the same in excess of that at which the plowing is to be 8o degree of vertical movement, the point of the done l avoid the necessity of using so great plow was presented to the ground at such a force as would be otherwise necessary, since 3o slight inclination that it did not readily enter the plow-point when presented at a considlhe soil. If in order to overcome this diftierable inclination tends to run speedily into eulty the plow was set with its point at such the ground and to its working position as the 85 inclination or angle as to cause it to quickly plow is drawn forward by the team. Moreenter the soil, then when both the furrowover, with the prior constructions of plows wheels dropped int-o place it was found that hereinbefore referred to, if the plow be set the inclination of the point of the plow was with its bottom edge at the proper angle for so great as to canse an excessive wear upon working, then when the rear furrow-wheel 9o the plow-point and an undue strain upon the drops int-o the furrow in turning the rst furteani. Moreover, with such old construction row it will be found that the point of the 4o it was found that when it was desired to withplow will be lifted above the horizontal or at draw the plow from the ground theupward least will be lifted above the proper angle for lifting of the plow from the furrow could not plowing unless some provision is made for 95 be quickly effected and was attended with con' shifting the position of the sustaining-frame siderable exertion upon the part of the opervertically with respect to the front furrowato'r, the tendency of the plow being to rewheel.

main in the ground. A further object of my invention is to pro- ()ne of the objects of my present invention vide means whereby the sustaining-frame zoo is to sustain the plow-beam in such manner can be adjusted upon the standards of the that the point or toe of the plow will be caused front and rear furrow-wheels, so that the an- 5o to move more rapidly than the rear portion gle or inclination from front'to back of the or heel of the plow, so that when the operatbottom edge of the plow can be varied acing-lever is shifted to produce the downward cording to the character of the soil wherein 1o 5 movement of the plow, the point of the plow the plow is to workr My invention consists, primarily, in mounting the plow-beam upon its sustaining-frame in such manner that in the shifting of the plow-beam the point or toe of the plow shall be caused to travel faster than the rear portion or heel of the plow, so as to cause the point to more quickly enter the ground lo reach the working position and to cause i't also to more rapidly rise from the ground when it is desired to lift the ploT therefrom.

My invention further consists in sustaining the plow-beam by means of differential cranks or links, whereby a more rapid movement shall be imparted to the point or toe of the plow than to its rear portion or heel.

My invention also consists in adjustably mounting the plow-frame upon the standards of the front and rear furrow-wheels, so that the degree of inclination given to the body of the plow can be readily controlled.

My invention further consists in certain details of construction hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the claims at the end of this specification.

Figure l is a perspective view of a plow em- -bodying my improvements. Fig. 2 is a side view, parts being broken away. Fig. 3 is a view similar to Fig. 2, but showing the parts in different positions. Fig. 4 is a plan view, partly in section, of certain of the parts upon a reduced scale.

A and B denote, respectively, the front and rear furrow-wheels ofxthe plow. The front wheel A is carried upon a standard A', that is journaled within a vertical box a, bolted to the arm 2 of the sustaining-frame of the plow.V At the bottom of the-box a is acollar lV, provided with a set-screw ce', whereby the position of the sleeve ct upon the standard A can be controlled. In like manner the rear furrow-wheel B is journaled upon the lower end of a standard B, that passes through a vertical box b, the position of the box upon the standard B being controlled by means of a set-screw carried by the adjustable collar W. The standards A and B are preferably bent in such manner as to angle the furrow-wheels A and B, and at the tops of the standards A and B are attached suitable segment-plates, which, however, form no part of my present invention, these plates relating to the invention set forth in my patent dated September 30, 1890, No. 437,666. The sleeve b is bolted to a plate h2, to which is fastened the converging rear ends of the arms 2 and 3 of the plow-frame, the front ends of these arms being connected lby an arch-bar 3u.

C designates the plovswbeam, bent in the usual manner and carrying at its lower end the plow D. This plow-beam C has connected to its forward portion two brackets E and E', one on each side of the plow-beam, (see Fig. 4,) and through the lower ends of these brackets passes a pivot-rod e, upon the outer ends of which are pivotally sustained the cranks or links F, the opposite ends of these cranks or links F being fixed upon or cast in piece with a sleeve g upon the main axle G of the machine. rlhe sleeve g is fixed to the' axle G, that isheld within the hangers 4, bolted to the sustaining-frame, and to the crank-arm g', pivotally held on the axle G adjacen-t to the collar g2, is fixed the stud G', whereon is journaled the land wheel H. Upon the 'end of the main shaft G is fixed the segment-rack K, with which engages the catch of the lever L, whereby the leveling of the plow is effected,as well understood in the art.

The rear portion of the plow-beam Gis provided with a stud or pin c, projecting laterally therefrom, this pin c entering an elonf gated slot or hole m, formed in the end of the crank or link M, that is journaled upon a stud 6, projecting inwardly from the side bar 2 of the sustaining-frame. This crank M is preferably a bell-crank lever, to the arm m of which Vis pivotally connected a connectingrod N, that unites the crank M to the operating-lever O, whereby the raising and lowering of the plow-beam and the plow is effected. This lever O is fixed to the sleeve g of the main shaft and is provided with a suitable grip-catch 0, that engages with a segment rack-bar P to hold the operating-lever in any desired position.

ItI is manifest that when the operating-lever O is shifted it will cause the crank F to swing, as both the lever and crank are attached to the same sleeve g, and it will also impart a swinging movement to the crank M through the medium of the connecting-rod N. As a consequence, the plow-beam C and plow l) will be raised or lowered, according to the shift of the lever O; but inasmuch as the forward crank or link F islonger than the rear crank M it is obvious that the forward portion of the plow-beam will be moved more rapidly than the rear portion, and as a consequence the toe or point of the plow will travel more'rapidly and a greater distance than its heel. Hence it is plain that in lowering the plow to its work by the forward movement of the operating-lever O the plow will be pre- IOO IIO

sented to the ground point first and with itsn shown by full lines, or is in the Working or plowing position, as seen by dotted lines, the crank M stands nearer to the vertical than does the4 crank F, and hence aside from its greater length the position of the crank F is such as to cause a greater vertical movement of the plow-beam than is produced by the crank M in its less eifective position. Indeed it is plain that the differential movel in riding position.

ment of the plow-beam could be effected entirely, if desired, either as a result of the difference in the relative positions of the front and rear cranks or links or as the result of the difference in the lengths of the cranks, and either construction I regard as within the scope of my invention, although I prefer to secure the differential movement by reason both of the difference in lengths and positions of the cranks. In any event it is desirable that there shall be a slot similar to the slot fm of the crank or some like provision of a loose or free connection, so as to better allow forthe different movements of the cranks.

From the foregoing description the operation of my improved plow will be seen to be as follows: When the parts are in the position seen in full lines in Fig. 2 of the drawings, the plow is raised above the ground and can be then readily transported from point to point, the position of parts being at such time It' now it is desired to break ground, the operating-lever O will be moved forward to the position shown in Fig. 3 of the drawings. This shifting ofthe operating-lever O at the very beginning of the plowing operation will cause the plow D to be brought to the position seen by dotted lines in Fig. 3 of the drawings, and the point of the plow being caused to move downwardly at a greater speed than the heel of the plow will present the plow at such an angle as to cause the point to speedily enter the ground. As the team now advances, causing the turning of the furrow, the rear furrow-wheel willdrop into the furrow and the plow will be brought with its bottom at the desired working angle, as seen by full lines in Fig. The operator will then shift the lever L, if desired, in order to insure the transverse levelingr of the plow and frame. At the completion of the first furrow and as the second furrow is begun the operator will shift the operating-lever O from the position seen in Fig. 3 to the position shown by dotted lines in Fig; 2, this being the normal Working position of such lever.. This shift of the operating-lever will compensate for the dropping of the frontfurrow-wheel into the furrow that has been already turned, since if no such shift were made the bottom edge of the plow would be presented to the soil at too great an angle for 4proper working and the point of the plow when the plow is raised from the ground, asV

seen in full lines,Fig. 2, the point Will be at such distance above the ground as to enable the plow to clear or pass over any trash or like obstructions upon the surface of the ground. It is manifest, also, thatinasmuch as the operating-lever O is attached to the axle G the movement of the operating-lever will not only effect the operation of the` cranks Vor links that sustain the plow-beam, but will also at the same time cause the shifting of the land-wheel H, thereby securing a more speedy and effect-ive raising and lowering of the plow.

In plowing very hard and dry soil it is desirable that the point ot the plow shall be presented to the soilat a considerably greater' inclination than when the plow is operating in soft ground. By my improved construction this change in the angle of the plow is effected by adjusting the plow-frame up and down upon the standards of the front and rear furrow-wheels by means of the collars NV V. Thus, for example, if the plowin the position seen in Fig. 3 is at the proper angle for turning soft ground, and it is desired to increase this angle in order to adapt the plow for work in hard soil, it is only necessary to adjust the collars \V XV with respect to each other in such manner as to bring the bottom edge of the plow at the desired augle and at the same time insure that the point of the plow shall be at the proper position with respect to the furrow-wheels.

From the foregoing description it is manifest that by the use of differential mechanism for raising and lowering the plow not only is the point of the plow caused to travel more quickly into and out of the furrow, but the bottom of the plow is held atthe proper working angle not merely when the plow is running with the rear furrow-wheel in the first furrow that has been turned, but by shifting the differential mechanism the proper working angle of the plow is maintained even after the front furrow-wheel has dropped into the furrow. Obviously, if uniform link mechanism were employed for raising and lowering the plow-beam it would be found that if the plow were set at such an angle as to enable it to speedily enter the soil, then when the rear f urrow-wheel dropped to the position seen by full lines in Fig. $3 the plow would be brought to the proper working angle; but as soon as the front furrow-wheel dropped into the furrow, as seen by dotted lines in Fig. 2, the inclination of the'plow would again become too steep and manifestly no mechanism for simply imparting a`uniform lift to the IIO front and rear of the plow could cure this despirit of my invention, and certain features thereof may be employed without its adoption as an entirety.

Having thus described my invention, what I claim as new, and desire to secure bv Letters Patent, isu l. In a sulky-plow, the combination, with a sustaining-frame and three carrying-wheels for said frame and a plow-beam supported by said sustaining-frame, of diiterential mechanism for connecting the plow-beam with the sustaining-frame and for raising and lowering the front and rear portions of the plowbeam to different extents to impart differential movements to the point and heel of the plow, substantially as described.

2. In a sulky-plow, the combination, with a sustaining-frame and three carrying-wheels foi.1 said frame and a plow-beam supported by said sustaining-frame, of differential mechaulsm connecting the plow-beam with the sustaining-frame, said differentialmechanism comprising cranks extending between the plow-beam and the sustaining-frame and arranged to impart differential movement to the front and rear supports of the plow-beam, whereby the point of the plow may be caused to travel faster than its heel, substantiallyas described.

In'a sulky-ploW, the combination, with a sustaining-frame and three carrying-wheels for said frame and a plow-beam supported by said sustaining-frame, of differential mechanism for raising and lowering the plow-beam, said differential mechanism comprising two cranks or links of different lengths serving to` connect different points of the plow-beam with different points of the supporting-frame land whereby the front and rear portions of the plow-beam may be raised and lowered to different extents, substantially as described.

4. In a sulky-plow, the combination, with a sustaining-frame and three carrying-wheels for said frame and a plow-beam supported by said sustaining-frame, of differential mechanism for raising' and lowering the plo w-beam, said differential mechanism comprising two cranks or links connecting the plow-beam and the sustaining-frame, said cranks or links being set at diiferent angles, whereby a differential movement is imparted to the front and rear portions of the plow-beam, substantially as described.

5. In a sulky-plow, the combination, with a sustaining-frame and three carrying-Wheels for said frame and a plow-beam supported by said sustaining-frame,of differential mechanism for raising and lowering the plow-beam, said mechanism comprising two differentiallyoperating cranks, one of said cranks affording a loose connection-as, for example, by a stud and slot-between the plow-beam and the supporting-frame, substantially as described.

6. In a sulky-plow, the combination, with a sustaining-frame and three carrying-wheels and a plow-beam supported by said sustaining-frame, of cranks or links for sustaining front portion of the plow-beam, a shorter crank IWI, connected with the rear portion of the plow-beam, said shorter crank having its end provided with a slotm, and an operatinglevcr suitably connected with the front and 'rear cranks, substantially as described.

S. In a sulky-plow, the combination, with a sustaining-frame and three carrying-wheels and a plow-beam supported by said sustaining-frame, of a differential mechanism for raising and lowering said plow-beam, said mechanism comprising a long crank F, counected with the front portion of the plowbeam, a shorter crank M, connected with the rear portion of the plow-beam, and a single operating-lever suitably connected with the front and rear cranks, substantially as described.

9. In a sulky-plow, the combination, with a sustaining-frame and three carrying-wheels for said frame and a plow-beam supported by said carrying-frame, of differential mechanism connecting the plow-beam with the sustainingframe, said mechanism comprising two differentially-operating cranks or links, a 'connection between said cranks or links, and a single lever for operating said cranks or links to raise and lower the plow, substantially as described.

10. In a sulky-plow, the combination, with a sustaining-frame and carrying-wheels for said frame and aplow-beam supported by said sustaining-frame, of differential mechanism for raising and lowering said plow-beam, comprising the cranks F and M, a single operating-lever O, and a connecting-rod N, uniting said crank M with said lever O, substantially as described.

1l. In a sulky-plow, thc combination, With a main frame and with the front and rear furrow-wheels and the land-wheel for supporting said frame. of a plow-beam, front and rear cranks or links connecting said plow- .beam with the sustaining-frame, a single operating-lever for shifting said cranks or links, a suitable connection-such, for example, as a rodfor securing` the movement in unison of said cranks or links, and a crank-axle for the land-wheel suitably connected with the operating-lever, whereby the said lever will serve to effect the movement both of the cranks or links and of the land-Wheel with respect to the main frame, substantially as described.

` WILLIAM SOBEY. In presence of-V CHARLES II. LEE, HENRY M. WALLIS,

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