US474309A - sobey - Google Patents

Description

3 Sheets-Sheet l. W. SOBEY. GULTIVATOR (No Model.)

Patented May, 1892.

3 Sheets-Sheet 2. W. S'OBBY. GULTIVATOR.

(No Model.)

No. 474,309. Patented May 3, 1892.

...hrm

(N Model.) 3 sheetssheenY 3.

W. SOBEY.

GULTIVATOR.

No. 474,309. Patented May 3, 1892.

I `er E h .H 'lgf o E l [I n vs N n N g E I k" 1 R H A, s

IMI/2E N www] 9 Q e s w' im gdm J mgm www *rng/j UNITED STATES PATENT OFFICE.

VILLIAM SOBEY, OF RACINE, VISOONSIN, ASSIGNOR TO THE J. I. OASE PLOV WORKS, OF SAME PLACE.

C U LT IVATO R.

SPECIFICATION forming part of Letters Patent No. 474,309, dated May 3, 1892.

Application iiled January 25, 1892. Serial No. 419,173; (No model.)

To a/ZZ whom, 25 may concern,.- The exact nature of the improvement and Be it known that I, VILLIAM SOBEY, residthe several details thereof will appear from ing at Racine, in the county ot' Racine, State the description following, and be pointed out of Visconsin, have invented certain new and by claims at the conclusion thereof.

useful Improvements in Oultivators, of which In theaccompanyingdrawings, forming part 55 I do declare the following to be afull, clear, of this specification, like parts are denoted and exact description, suiiicient to enable by like designation throughout. others skilled in the art to which such inven- Figure l is a View in side elevation of a culvention appertaius to make and use the same. tivator embodying the invention. Fig. 2 isa xo The invention relates to tongueless cultivaplan view thereof. Fig. 3 is an enlarged per- 6o tors of that class wherein a simple arch or s'pective view showing portions of the archcross-bar at the top carries near its opposite bar, the plow-beam, the swinging hanger, and ends the pivotally-suspended radius arms or connected parts. Fig. 4 is a detail sectional hangers. These hangers swing vertically beview taken at line 4 4 of Fig. 2.

neath the cross-bar, and are furnished below Extending from side to side at the top of 65 with an outward horizontal extension, which the machine is the free arch or cross-bar C', affords a mount for the pipe or like coupling near the opposite ends of which the hangers of the plow-beam and a spindle-bearing for or radius-arms C stand pivotally suspended. the supporting-wheel. The separate hangers Each hanger C is connected with the crosszo allow for the independent longitudinal play bar Oby means of a knuckle or like joint, as 7o of each plow-beam and its wheel; but in pracat D, which is forked to receive a collar c, tice the extent or direction of such play for having set-screws c', whereby the hanger C the two beamsis not often uniform. Changes can be laterally adjusted and held in place, in draft, resistance, or from casual obstrucwhile yet free to turn about its joint with the tions at the sides of the machine'affect the cross-bar. Near its lower end each hanger() 75 wheels and beams unevenly, and because of is provided with an outward horizontal exthis the hangers tend constantly to topple fortension, affording a mount for the pipe-coupward or back at their free joints with the comling B or like expedient to sustain the plowmon cross-bar. beam. The beam A is connected with its 3o The device is rickety and unstable and will coupling B through the usual pivot-bolt a, 8o not stand up to its work. To remedy this dewhich engages the corresponding lugs or ears fect is the main object of the invention, and projecting, respectively, from the front of the to such end it designs to provide a yielding beam and from the back of the coupling; spring connector located between each beam Between each beam and the pivot-joint D and its hanger and crossing (from front to of its supporting-hanger O extends the yield- 85 back) the axial line of the wheel-spindles, said ing spring-connector, which in the form shown connector serving not merely as a counterconsists of the helical spiral E, secured at one poise for the beam in raising and lowering end to the joint D in such wise that its free the same, but acting aswell to keep the hangerend extends forward in front of the axial line 4o joint at the cross-bar steady and co-operating of the wheel-spindles. Alink F joins the free 9o also through the free cross-bar with the cornend of the helical springE with the swinging panion connector and its adjunctive parts to bail f, pivoted, as by bolt f', to the beam A. maintain the hangers upright at their pivot- There may be more than one seat7 as at 0.2, joints with the bar. The effect is substanfor the bolt f of the bail, so that the position tially the same as if the cross-bar, instead of of the bail, and in consequence the point of 95 being free, were stoutly held at its center by power-application for the spring E, can be a team-pole, the proposed structure, however, varied with reference to the beam-fulcrum, permitting the free arch-bar to act somewhat (at the coupling B,) and the leverage upon the as an evener in distributing the strains to the plow-beam be thus correspondingly changed.

5o two sides of the machine. The chain-section. at the upper terminal of 10o the link F allows for the variable adjustment of the tension of the spring E with reference to the load and resistance of the beam.`

The sustaining-wheel for the machine may be mounted directly upon the horizontal extension of the hanger C, adjacent to the pipe-- coupling B, although in preferred practice the wheel is set upon a stub axle or spindle having a slight lateral play, which spindle constitutes practically va part of the horizontal extension of the hanger C. The extension is simply divided in two, the parts being joined together by a pivot-bolt, which permits a slight` swing to the outer portion carrying the wheel-spindle. A bracket G, having a hub g, is rigidly secured, as by bolt g', to the fixed part of the hanger extension, and engages with a corresponding bracket K, having the stub-spindle L secured thereto. Corresponding ears of the brackets G K are pivotally held by means of the through-bolt H, so that the spindle end of the hanger-extension is free to move slightly about the pivot H. The supporting-wheels L are set upon the stubaxles L, and ultimately receive the full weight of the front of the machine.

Between the ways or ledges 7a of the bracket K and against the front and rear ears thereof rests the clevis-bar M, extending forwardly, and the leg or standard M', extending rearwardly on the machine, as shown. For convenience the clevis-bar M and the leg M are in continuous piece fastened by bolts, as at m, to the inner face of the bracket K. At its front the clevis-bar M is furnished with the usual series of hitch-points upon its terminal M2, whereby the line of draft can be changed, as well understood. A hook N, secured, as at g2, to the bracket G, engages with the eye n on the clevis-bar M, and thus acts to hold the stub-axle L rigidly in right alignment when the machine is proceeding to the field or at other times, as may be desired. In plowing, the hook N is released from its eye fn., so that the stud-spindle can swing for a slight distance with its wheel Lf about the pivot-bolt N. By such expedient, when the horse swerves from the path the wheel L responds at once while the plow-beam and its shovels continue in true course without side draft or irregularity of movement, such as would occur if the spindle L were in rigid alignment. with the xed part of the hangerextension.

The leg or standard M is furnished with the trailing foot M3, held, as at the seat q, in position free to swivel upon the leg. Each standard M M3 sustains the weight of the machine at the rear of the wheel-spindle, and both standards in conjunction with the wheelrims constitute the ultimate points of support for the entire device. Should the shovels be in working position they help to sustain the weight of the beams and by so far reliefy the standards from the extra duty which necessarily comes upon them when the beams are lifted or are at rest by their eyeloops S in the hooks R. At such time the rear of the machine greatly overbalances the front, and so tends to gravitate aboutthe Wheel-hubs as a center; but the standards M M3 are in play, and being rigidly fastened to the hanger-,extensions rest firmly upon the ground and resist the gravitating turn, so that the parts are maintained in unchanging position. When organized as shown by Fig. l, the yielding spring-connector which (as there displayed) extends from front to back across the axial line of the machine and joins the plow-beam A with the pivot-couplingD of the hanger at the cross-bar serves, first, as a counterpoise for the beam A about its fulcrum B, and, second, as an efficient means for holding the hanger upright. The connector keeps the hanger and beam together as one system. Any tendency which the hanger C may have to topple forward at its joint with the cross-bar from the wheel-axle as a center is resisted through the link F in its relation to the free end of the helical spring E and by the weight of the plow-beam A. On the other hand, any backward topple cannot occur, because, as already explained, the standards MMsare fastened to the hanger extensions and resist the reverse turn of the spindles within the Wheel-hubs. At all times, therefore, the weight of the machine behind the wheel-spindles is constantlyin play to hold the cross-bar C substantially upright, and this, too, irrespective of theindependent longitudinal swing of the hanger C, beam, and wheel about the pivot-joint D of the hanger. During operations in the field the draft upon the clevis-bar M generally raises the foot M3 far enough for it to just clear the ground, although the weight and resistance of the beam A ,and its shovels still serve to hold the machine to its work. It'is plain that the movement of either hanger C about its pivot-joint D is transferred in measure through the free cross-bar C to the companion hanger and its adjunctive parts, so that such cross-bar acts somewhat as an equalizer in distributing the strains evenly to both' sides of the machine.

Obviously the details of structure may be varied without departing essentiallyfrom the real invention, which latter is not limited to the precise devices herein set forth, although restricted, of course, to that class of tongueless cultivators wherein the free arch or crossbar pivotally carries the swinging radius arms or hangers, these latter serving as mounts for the plow beamsl and supporting devices, (wheels.) Other kinds of spring-connector than the helical form with its link can be used, or instead of crossingthe axialline, as shown, the connector may be joined to the hanger and plow-beam, respectively, but be located wholly at the rear of the axle. Again, the counterpoise-spring for the plow-beam in its action about the pipe-coupling may be quite distinct instructure from the anti-toppling spring-connector, which latter, for instance, may extend from the arch bar to the stand- IOO IIO

ard M or like rigid projection, instead of being arranged between the hanger and swivel plow-beam but the latter arrangement, as appears from the description, allows a single spring-connector to perform a double duty or function, and being simpler is therefore preferred.

Because of the modifications proposed it will be understood that the designation of the plow-beam in the claims following, as an element of structure combined with the spring-connector to prevent toppling of the hanger-joint, may be for precision only, (unless the context shows the contrary,) and is not necessarily in way of' limitation, especially since the rear standard 0r like rigid projection can be employed, instead as a hitch for the yielding connector.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In tongueless cultivators, the combination, with the free arch or cross-bar and with the swinging hangersustained therefrom, of the pivoted plow-beam, the machine-wheel and the rear standard carried, respectively, by said hanger, and the yielding spring-connector extended between the arch bar or hanger and the plow-beam (or its equivalent) to prevent toppling, substantially as described.

2. In tongueless cultivators, the combination, with the companion hangers, having a wheel-spindle projecting from each, of the swivelmounted plow-beams and the rear standards extending from said hangers, respectively, the cross-bar or arch pivotally sustained by the opposite hangers, and the springconnectors located across the spindle-axis and uniting each hanger with its corresponding plow-beam, whereby the latter is counterpoised, and the common cross-bar held in normal position, substantially as described.

3. In tongueless cultivators, the combination, with the free arch or cross-bar and with the swinging hanger suspended pivotally therefrom and having a horizontal extension, of the swivel-mounted plow-beam, the machine-wheel, and the rear standard sustained, respectively, from said extension, the helical spring carried by said hanger, and the intermediate link joining the free end of said spring with the plow-beam, whereby said beam is counterpoised and the hanger prevented from toppling, substantially as described.

4. The combination, with the free arch or cross-bar, of the swinging hanger supported therefrom, the plow-beam pivoted upon said hanger, and the machinewheel journaled thereon, the intermediate spring-connector joining said beam and hanger, and the clevisbar and supportingstandard extending, respectively, front and back from said hanger, substantially as described.

5. In tongueless cultivators, the combination, with the free arch bar, of the swinging hanger supported thereby, the plowbeam swiveling from said hanger, the intermediate spring-connector joining said beam and hang-l er, and the machine-wheel journaled and laterally pivoting upon said hanger, substantially as described.

WILLIAM SOBEY.

lVitnesses:

HENRY MITCHELL WALLIS, DIETRICH THEoNsoN.

Images