US394128A - norton - Google Patents

Description

(No Model.) 4 Sheets-Sheet 2.

F. H. NORTON.

COMBINED DISK HARROW AND SEBDBR.

Patented Deo. 4, 1888.

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(No Model.) 4 Sheets-Sheet 3.

P. H. NORTON.

COMBINED DISK HARDOW AND SDDDBD.

No. 394,128. Patented Deo. 4, 1888.

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(NoModel.) 4 Sheets-Sheet 4.:

F. H. NORTON. COMBINED DISK HARROW AND 'SBBDER No. 894,128. Patented Dec. 4, 1888.

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UNTTED STATES PATENT OEETQE.

FRED. ll. NORTON, OF GOFVERYEUR, FEW' YORK, ASSIGOR TO TIIE ST. LHVRENCE MANUFACTVRING COMPANY, OF SAME PLACE.

COMBINED DISK l-IARROW AND SEEDER.

SPECIFICATION forming part of Letters Patent No. 394,128, dated Decanmr 4, 1888.

Application filed May 28, 1887. Serial No. 239,661, (No model.)

T0 all whom if may concern:

-e it known that l, FRED. ll. NORTON, a citizen ot the l'nited States, residing at. Gouverneur, in the county ot' St. Lawrence and State ot' New York, have invented certain new and uset'ul lmprovt-mients in (ioinbined Disk Harrows and Seed ers, of which the following is a specification, reterence being had therein to the accon'lpaitying drawings.

lli`igure l is a top or plan view, partly broken away, with the gangs out ol' line. Fig. 2 is a bottom view, with the gangs in line. Fig. 3 is a rear elevation ot' Fig. 2. Fig. -tis an end view looking in the direction ot' the arrow, Fig. l. Fig. 5 is a vertical section on line .r rr, Fig. Si, looking in the (flirection ot the arrows 2, same figure, showing in t'ull lines some ot the gangdraft connections (which would not naturallyv be seen in this figure) to illustrate their operation. Figs. l, 7, S, il, lt), ll, 12, lil are details enlarged, part oi' them illustrating moditications.

A is the pole, and A the seat and standard.

In one class ot' disk harrows the inner ends of the gangs are so connected to each other that they necessarily rise and fall together by reason ot' their being attached to each other in such manner that they are incapable of vibrating vertically independently ot' each other. ln another class the inner ends of the gangs abut against each other or against an interposed device ot' some sort which permits the inner end otl either gang to vibrate vertically independently practically ot' the inner end ot' the adjacent gang. Two advantages are incident to this second class, to wit: a more ready conformation or adajiitation ot' the position of one gang to the contour oi' the surface ot' the ground being operated upon, and the relieving ot' the bearings by which the gangs are connected to the (lratt-t'raine from the inward thrust produced by the disks when in operation. An illustration oit" this second class or type is found in Patent No. 351,025 to A. Corbin, .l r., in which it is proposed that the inner ends ot' the gangs be provided with rounded ends to abut against each other or against an interposed stationair-y plate. My harrow belongs to this second class, and one part of my invention relates to the combination, with the i inner ends ot' the gangs, ot a pin which is adapted to receive upon its ends the inward thrust ot the gangs, and thus relieve the box ing otl the axles t'rom the friction and wear to which they would be otherwise subjected, and at the sametime permit the inner ends oli the gangs to vibrate in vertical planes, the ends ot' the pins serving as pivot-points about which the gangs can vibrate in every direction as maybe required in the ordinary working of the harrow. Each end ot' this pin is free to vibrate vertically about its opposite end,whieh is seated in, but disconnected t'rom, the adjacent gang-axle.

Other parts ot the invention relate to teatures ot' construction and combination which will be fully explained and referred to in the claims.

,l 13; o, Figs. l, to, 11. and '12, is the gangaxile beam, bolted firmly to the tongue and forming therewith the mainframe. The axlebeam is made ot' one piece ot' angle-i ron bent downward at its ends and connected with the gangs, as will be fully explained.

(l (y are the gang-axles, preferably round, in cross-section, and connected near their outer ends to the downward-projectin g ends ot' the gang-axle beam.

(7" C is a two -part tubular boxlng surrounding one ot' the spacing-thilnbles. It has a circumferential rib, c, with upward and downward lugs arranged in pairs.

ZF b2 are bars bolted at their upper ends to the inward, projecting web b, and are bent into shape to surround loosely the rib of the tubular boxing. b b are bolts 4supported in the bars b l) above and below the tubular boxing, and at such distances apart as will permit an up-and-down movement otl the main frame relatively to the gang-axles. The lugs straddle these bolts and are of such length as to permit this up-and-down .movement with out escaping` from the bolts. As a modification l propose to extend downward the ends B`2 of the beam far enough to receive a yoke, b2, which has its ends bolted to the web l) in such position as to receive and support the tubular boxing, substantially as shown in Fig. l2; or l may connect the gangs with the gangaxle B by means of stirrups Z13, surrounding IOO the tubular boxing, the ends of the stirrnp passing through the inward-projecting web and bolted thereto, as in Fig. 13.

In other figures I have shown metal downhangers B B', arranged in pairs at each end of the ordinary cross bar or plank, B3, and upon opposite sides thereof. In connection with these down-han gers I propose to use bolts b b upon opposite sides of lthe tubular boxing and at about the same distances apart vertically as are the corresponding bolts and the legs of the stirrups in the other figures; but, as above stated, I prefer the T-iron continuous metal'gang-axle beam, which is adapted for use generally in this class of harrows for connecting the gangs with the tongue or draftframe. y

I do not claim to be the first to use a bent iron bar in the construction of a disk harrowframe; but, so far as I am aware, the use of T-iron for this purpose is new, and it possesses many advantages over a flat bar, whether the same be used with its tlat face -uppermost or with its edge uppermost. For instance, with a T-iron beam having its ends bent downward with the fiat surface uppermost and its central rib projecting downward from the horizontal part and inward from the vertical end portions I provide a desirable broad flat bearing for the feet of the brackets of a seed-box, to be hereinafter described, and can utilize advantageously the central web b as a support for either the bars b2 or the stirrup shown in Fig. l2, each of which can be bolted to that web with one of its edges abutting against the inner face of the flat upper and outer web, whereby the bolts are largely relieved from strain and a much greater strength and durability attained than would be possible with any of the constructions heretofore known.

At the inner end each gang-axle carries a daring shell, D d, preferably lof chilled iron, or other suitable hard metal, and in ordinary manufacture I propose to cast these shells directly upon their respective axles.

E e e is a sleeve-bearing surrounding the axle between the smaller 'end of the shell and the adjacent disk.

The disks F F are of any usual sort placed upon the axles with interposed spacing-thimbles, and clamped together by a nut on the outer end of the axle. The inner disk, F, has a central opening of such size as to fit over the larger end of the shell, to which it may be fastened by rivets passing through the disk and the flange d at the inner end of the shell.

G is a thrust-pin arranged within the shells and engaging at its ends with the inner ends of the axles, or, when preferred, the shells may be so formed as to cover or inclose the inner ends of the axles, as is indicated at the right-hand end of the thrust-pin in Fig. 3, to provide a hardened surface. I prefer to make the thrust-pin of chilled iron or hardened steel, with both its ends cone-shaped and of less diameter than the inner diameters of they shells to permit the vibrations of the gangs. It will be seen that although this pivotal thrust-pin receives the inward thrust of the gangs, yet by reason of the inner diameter of the inner ends of the shells being much greater than the diameter of the adjacent portions of the pin the inner ends ot' the gangs can rise and fall relatively to their outer ends and their bearings in the frame, so as to conform to the surface of the ground over which they are drawn.

H I 1' t' is a bearing-block, preferably of cast-iron. The horizontal part II may have upward-projecting lips to embrace the sides of the tongue an d support it against splitting. The vertical part I is slotted to receive a pivot-bolt to be described.

.I is an equalizer mounted centrally upon a pivot-bolt, j, which passes through the slot and carries at its rear end a thimble and nut, the length of the thiinble being a little greater than the thickness of the equalizer, so that the pivotbolt can be screwed up tightly against the slotted upright I and permit the equalizer to vibrate freely about it to permit not only the vibration of the inner ends of the gangs independently of one another in vertical planes to conform to the surface of the ground, but also to permit the gangs to occupy different horizontal and parallel planes, whereby the harrow is adapted to pulverize the ground to uniform depth under a great variety of circumstances.

In the Corbin harrow above referred. to, when the gangs are assuming such various positions at work, the inner en ds of the gangs must either rub against each otheror against the interposed plate, whereas in my harrow the gangs vibrate about the ends of the interposed pin, which serve as pivot-points for that purpose, either end of the pin being free to rise and fall about its opposite end as a center. In order to provide for such movements without having the pin assume an undesirable angle to either of thedisk-gangs, and to prevent placing the inner disks too Yfar apart, I employ a long pin and then combine with the inner ends of the axles shells which overlap the pin and carry disks at their inner ends. Again, another function of these shells is this: They guard against loss or accidental displacement of the pin in case,A from any cause, the inner ends of the gang-axles should be separated from each other farther than they usually are when in operation, it being impracticable, or at least undesirable, to attacheither end of the pin to its adjacent gang, and it will be readily understood that by reason of the pin being perfectly loose within the shells its presence facilitates t-he vibration of the inner ends of the gangs independently of each other in all directions, either end of the thrust-pin being free to vibrate vertically about its opposite end whenever the movement of the inner end of either gang necessitates such movement.

IOO

IIO

The conical form of the shells greatly fa` cilitates the escape of dirt, should any fall from the disks upon the pin and enter the mouths of the shells. Therefore there is little or no liability of dirt getting to the inner ends of the shells and grinding oit' the outer ends of the pins. In order to insure sufficient strength and rigidity of the pin, I increase its diameter at the center, or by loosening the nut it, together with the equalizer, may rise and fall together within the limits of the slot.

j' j are links pivoted at their uppcrendsto the equalizer and at their lower ends to the lugs e e of the tubular bearing, whereby the weight of the main frame and the driver may be made to resist any upward movement of the inner ends of the gangs, it being apparent that if the pivot-bolt be locked in a lower position in the slot than that shown in Fig. 3 the inner ends of the gangs will be depressed relatively to their outer ends, and consequently the center disks of the harrow will tend to cut deeper into the soil than will the outer ones.

I am aware that it is common to connect a horizontal bar to the inner ends of the gangs, so as to maintain them in a substantially common horizontal plane to insure that they shall at their inner ends ent to the required depth, and hence I do not claim such bar; but I believe myself to be the,lirst to use a pivoted bar the ends of which can vibrate up and down in combination with the inner ends of the gangs, for the purpose ot' regulating their depth of eut.

To assist in moving forward and regulating the depth of eut of the disks, I employ a vibrating thrust-bar connected at its rear end to the main frame, with devices to support and adjust its front end. To permit the inner ends of the gangs to vibrate vertically or independently, I connect them wit-h the thrust-bar by draw-bars, and to facilitate the adjustment of the thrust-barI employ a link within reach of the driver.

Referring particularly to Figs. :2, l, and 5, K K represent the .liaw-'lJai-s, connected at their rear ends to the bearings E E of the gang-axles by pivots, which pass through the draw-bars and the lugs e e. These draw-bars are pivoted at their front ends to the front downward-projecting end of the thrust-bar K, which latter has its rear end connected to the main frame.

By an examination of Figs. i and 5 it will be readily understood that when these parts are in the position shown in Fig. i the inner ends of the gangs are in rear of their outer ends 5 but when the corresponding partsthat is, the thrust-bar and draw-bars-are in the position shown in Fig. 5 the gangs are in substantially a straight line and at right angles to the line of draft. It will also be seen that when the gangs are being shifted from one of these positions to the-other the line of draft is varied by reason of the upand-down movement of the front end of the thrust-bar, and that such change in the line of draft affects the depth of cut of the disks at opposite ends of the gangs in a way and to an extent which would not be accomplished by a mere change in the angle of the gangs to t-he tongue from the fact that as the gangs are being shifted from the position shown in Fig. -t to that in Fig. the front ends of the draw-bars are elevated relatively to the gang-axles. Such elevation of the drawbars tends to lessen the 4 depth to which the innermost disks will eut as compared with the disks at the outer ends ot' the gangs. By preference I make each draw-bar of a sepa* rate bar of metal and unite their t'ront ends to the thrust-bar and to a part or link, L, by a pivot, 7;.

The forward end of the part L is ratcheted, as at L, its extreme end being formed into a hook, l, which takes hold of aircye, loop, or staple, (l, on the under side of the tongue. This loop or eye is of such size and shape that the ratcheted part is free to slide through it within certain limits, the hook I supporting the draw-bar against backward pull.

is a locking-link pivoted at its lower end upon the pivot and notched at its upper end to engage with a catch or lock-plate, a', pro ]'ecting from the seat-standard or other suitable support. The upper end of this link is formed into a handle within convenient reach ot' the driver, and it will be readily understood that by pulling upward on this locking-link the driver can move the inner ends of the disk-gangs forward relatively to their outer ends, and vice versa.

\\'hen it is desired to move the inner ends of the gangs backward relative to their outer ends, it can be done by releasing the lockinglink from its catch or lock-plate a, when the draft of the team will pull the outer ends of the gangs forward relatively to their inner ends; or the same end can be attained by pushing downward `upon the locking-link. lVhen the inner ends of the gangs are pulled forward the upper forward end of the part L of the draw-bar will be thrust through the hook and be caught and held by a pawl, M, which is pivotcd at 'm to the tongue.

N is a tripping-lever pivoted at n to some convenientpart of the main frame or to the seat-standards a and conuected-by link n to the pawl M for the purpose of unlocking the pawl from the ratchet when it is desired to have the inner ends ot' the gangs moved backward.

By an examination of Figs. i and 5 it will be readily seen that the part L of the drawbar when engaged with either the pawl M or the loop or staple a will support the 'forward end of the thrust-bar K against downward movement, irrespective of the locking-link Z',- or the link l will perform the same function even though the part L of the drawbar be omitted. Hence, although I prefer to use both of these devices, L and Z', yet I do not wish IOO IIO

to be limited thereby. By an examination of the same figures it will be seen that the inner ends of the gangs can be adjusted to various positions and moved forward when in operation by means of the jointed draw-bar and the link Z', even though the thrust-bar K be omitted; hence I do not wish to be limited to the use of the thrust-bar independently of the jointed draw-bar or the locking-link.

P P are scrapers curved to fit with sufficient accuracy the .concave faces of the disks. Each scraper has a hole in its upper end to receive a rod, upon which they are spaced by means of thinrbles Q Q. The outer end of each series of scrapers is supported by an eyebolt which surrounds one of the thimbles, the shank of the bolt passing through one or a pair of the hangers l', as at b3, Fig. S. Near the rear en d each scraper-bar is thrust th rough a hole in one of the links j. The thimbles Q Q are shorter than the thimbles Q.

l Q are coiled springs surrounding the scraper-bar between the thimbles Q Q and the links j', whereby there is a slight longitudinal movement of the scraper-bar and its attached scrapers, whenever required. Thus it will be seen that the thimbles not only serve to connect the scrapers with the scraper-bar, but to space the scrapers, and that while the springs q q permit the adjacent thimbles to move cndwise relatively to the links j', yet the scrapers, the thimbles, and

' the scraper-bars move endwise substantially together without disturbing' their working' relation to each other and to the disks, the relative positions of the parts being such that the scrapers are automatically maintained in about the same position as regards the disks unless moved in one direction or another by reason of some irregularity in the disks themselves or of material which adheresto the y...disks p p are nuts on the end of the scraper-rods. These nuts are so clamped to the scraper rods or bars, the scrapers, and the spacing-thimbles to each other and to the springs q q, that the scraper-bars and Scrapers move together longitudinally of the gangs whenever required.

As shown in Fig. 7, which is a cross-section of one of the scrapers, they (the Lscrapers) are so formed as to present a rather sharp cutting-edge to the disk to meet the advancing earth when it adheres to the disk, the upper ends of the scrapers being supported against forward thrust by the rods O, while their lower ends rest against the thimbles, except in the case of the outer scraper, P', of each gang, which may have attached to its lower end a collar, p', which is mounted loosely between the nut of the gang-axle and the outer disk. I propose to make these Scrapers of thin steel or other elastic material, which, with the endwise movement of the scraperbar, which is made possible by the springs q q, will insure a satisfactory operation.

R is a seed-box.

- R R are brackets mounted on the harrowframe and carrying the seed-box.

S S are thin metal strips or plates pro- Vi ded each with three rows of similarly-spaced square or round holes, s s, which register with corresponding holes in the bottom of the seedbox, as is customary in similar machines. These strips are arranged in a groove in the bottom of the seed-box, the upper one being stationary, the lower one being adjustable endwise by means of a cam-lever, T, pivoted to the rear wall of the box and engaging with an arm, connected with the lower plate and Yprojecting through a slot in the boX.

'1" is a notched segment with which the lever T engages.

It is well known that when distributing guano or other fertilizers difficulty arises by reason ot' the material arching over above the .delivery-openings, and to obviate such objection I employ a rocking-shaft, U, mounted at its ends in the ends of the feed-box and carrying a series of downward-projecting agitators, u. I propose to use two parallel lines or strands of chains or some equivalent form' of distributer to assist in the discharge of seed or fertilizer, or both, through the openings in the bottom of the seed-box; and to impart the desired motions to the agitator and the distributing-chains I propose to connect them with one of the gang-axles by devices which I .will now proceed to describe, referring particularly to Figs. l, 2, 4, S, and 9. y

"l is a crank-plate or arm attached to the outer end of one of the gang-axles, preferably by means of the same nut which clamps the axle, disks, and thimbles together.

2 is a crank-rod connected at its lower end to the crank-plate and sliding freely through a loop on the upper end-of an arm, 3, which is adjustable in a plate or clamp on the seedboX at r.

4 is a link exibly lconnected at its upper end to arm 3.

5 is a link suspended at one end upon the link 4 and provided at its outer end with an eye surrounding the rod 2.

The link 4 is' adjustable relatively to the link 5 or the arm 3, or both, so that when the arm 3 is adjusted up and down a corresponding adjustment of link 4 may be made, so that the link may be maintained in a substantially horizontal position. The forward end of link 5 is connected to a crank-arm or lever, 6, of the rocking-shaft U.

7 is another link attached to the crank-rod at its lower end and preferably adjustable thereon. The upper end of link 7 is connected to the outer end of arm 8 of a crank-axle, 9 l0 l1, of which the parts 9 ll are nearly perpendicular, and are connected at their lower ends by a horizontal part, l0, the entire crank-axle lever being pivoted upon spurs or their equivalents r fr', projecting from the seed-box.

4l2 is a rod pivoted to the part 10 and sliding through an eye or loop, 13, depending IOO IIO

IZO

from the seed-box, and havin g an upturned outer end, 14. i

15 is a line of chain connected to the upturned end 14, passing thence through the seed-box just above the metal plate S and out at the opposite end of the box, where it is connected to the lower end ot' a lever, Iii, which is pivoted at its upper end, 17, to the seed box or lug projecting theret'ron'l.

18 is a lever pivoted at 1! to the leve: l() and fulcrumed at :2O to a lug or post projecting t'rom the seed-box.

21 is a second chain connected to the lower end oli' lever 1S and passing thence parallel to chain 15 through the seed-box and out to and connected with the lower end ot a lever, 22, which is t'ulcrumed at 23.

24 is a coiled spring, preferably arranged within the seed-box and connected to the upper end ot lever :225. 'lhus this spring operates, through lever 22, to move the chain 21 toward that end ot' the box to which the lever is pivoted, the other chain, 15, being moved in the same direction by the upturned outer end, 14, of the rod 12 alternately, thc connections betweenwthe opposite ends ot these chains being of such character that the spring operates to move the chains in oppositedirections into the position from which they have been moved by the positive action ot' the other and alternately-acti n devices.

From an examination ot' the drawings it will be readily seen that as the gangs rotate and the crank-rod moves up and down,both chains will be moved alternately endwise relatively to the seed-box and in such close proximity to the holes s s as to effect a thorough i distribution ot the seed or the fertilizer, as the case may be.

I am aware that chains have been used as distributers in seeding-machines; but the employment ot' two parallel lines ot' chain arranged in close proximity to each other and to the discharge-openings in the hopper is uset'ul, particularly in the distrilnition ofi' tertilizers, because their alteri'iating movements ettectually prevent choking or cloggin ot the material, and thus facilitate its delivery.

It will be readily understood that by adjusting the height ot the arm the distance traveled by the chains at each revolution ot the gang-axles maybe varied, and that by reason ofthe crank-rod vibrating about the arm 3 its operation is that of a lever with an adjustable fulcrum. It will further be seen that the character of the rock-shaft and chain-operating devices is such that the movements ot' these parts is not materially at'tected by any variation otl the positions ot' the `gangs relative tothe feed-box which will occur under the ordinary operations for which the machine will be employed. Ot' course such variations are much less than would occur if the gangs were mounted, as they frequently are in machines of this ch aracter-to wit, with the hangs ers near the inner ends of the gangs and the adj listing-rods, links, or draw-bars attached to the outer ends of the axles.

To provide again st undue cramping or wear of the crank-rod where it is connected with the crank-plate, I prefer to use the construction shown enlarged in lfig. S, in which the crank-plate is provided with an ottset, so that the part 25 stands out at some distance from the lace ot' the disk, and is provided with a 'hole to receive the bent lower end, 26, of the crank-rod. The edges ol the hole are beveled or rounded, so as to tit closely and prevent lost motion while permitting the vibrations ot' the gangs without cramping.

27 B7 are washers, one on either side of the pla-te, and 2S is a pin or split key passing through the end 2U to preventaccidental displacement ot these parts.

In `Fig. 9 I have shown enlarged a convenient form otl oil-cu p, which may be applied to either ot' the bearings C or E, and in which C2 is the cup adapted to receive the oil, and, when preferred, cotton-waste. c is the cap. c is a pin projecting upward trom "the cup; c2, a coiled spring; c3, a washer which is pressed down upon the coiled spring and held by riveting the upper end of the pin or by a nut. The cap can be lifted slightly and then swung around on the pin as a pivot, the oil poured in, and the cap swung back with its sunken portion. inside the cup, in which position the spring will hold it.

I claim- 1. In a disk harrow, the combination of two gangs ot disks tlexibly connected to the main t'rame, and athrust-pin arranged between the inner ends ot' the axles adapted to receive the thrust produced bythe engagement ot the disks with the soil, substantially as set forth.

2. In a disk harrow, the combination of two gangs of disks flexibly connected with the frame, ot a thrust-pin arranged between the ends of the axle engaging therewith, and a shell attached to the axles and surrounding the thrust-pin, substantially as set forth.

3. In a disk harrow, the combination, with the disk-gangs, ot' hollow shells mounted upon their inner ends and disks mounted upon the inner ends of the shells and between the inner ends ot' the axles, substantially as set forth.

-t. In a disk harrow, the combination, with the disk-gangs tiexibly connected to the i'rame, of a thrust-pin arranged between the axles and having tapering ends, and the flaring shell attached to the gangs and surrounding the pins, substantially as set forth.

In a disk harrow, a gang axle beam formed ot' a single piece of metal, which is T- shaped in cross-section, and has its horizontal part arranged with its fiat face uppermost and its downward bent ends with the central rib projecting inward, in combination with axle-bearings secured to the inward-proj ecting ribs, substantially as set forth.

6. In a disk harrow, the combination, with IOO IIO

the main frame, of the flexibly connected disk-gangs and the equaliZing-bar attached to the main frame and adapted to vibrate in a vertical plane, substantially as set forth.

7. In a disk harrow, the combination, with the main frame, of the iexiblyconnected disk gangs and the vertically -adjustable equaliZing-bar adapted to vibrate in a vertical plane, substantially as set forth.

1o 8. In a disk harrow, the combination of the main frame, the gangs lliexibly connected to the main frame, the slotted vertical part I, and the adjustable equalizing-bar, substantially as set forth.

I5 9. In a disk harrow, the combination, with the gangs, of scraper-rods arranged above the gangs, a series of spacing-thimbles mounted on the rods, a series of scrapers between Vthe disks of the gangs and provided with holes 2o at their upper ends and mounted upon the rods between adjacent ends of the thimbles, substantially as set forth.

lO. In a disk harrow, the combination, with the gangs, of scraper-rods arranged above the gangs, a series of spacing-thimbles mounted on the rods, and a series of scrapers mounted at their upper ends on the rods between the thimbles, the lower ends of Athe scrapers engaging with the axles of the gangs, substantially as set forth.

ll. In a disk harrow, the combination, with the gangs, of scraper-rods arranged above the gangs, a series of scrapers supported at their upper ends upon the rods and at their lower 3 5 ends upon the gangs between the disks, and scrapers arranged outside the outer disks of the gangs, said outside scrapers being mounted at their upper ends upon the rods and provided at their lower ends with collars 4o mounted loosely upon the gang-axles, substantially as set forth.

12. In a disk harrow, the combination, with the gangs and the vertical links at the inner ends of the gangs, of the scraper-rods above the gangs, the'thimbles upon opposite sides of the vertical links, springs interposed between the thimbles and the vertical links, and scrapers supported at their upper ends upon the scraper-rods, substantially as setV forth.

5o 13. In a disk harrow,"theY combination, with the gangs, of the gang-axle beam having the downward-projecting arms, the scraper-rods connected at their outer ends to the downwardprojecting arms ot' the axle-beam; and the Scrapers mounted at their upper ends upon the scraper-rods, substantially as set forth.

let. In a disk-harrow, the combination,with the gangs, of the scraper-rods arranged above the gangs and connecting devices loosely sur- 6o rounding the scraper-rods, whereby the rods and Scrapers mounted on the rods'can move lengthwise of the gangs and relatively to the fraine of the harrow, substantially as set fort-h.

15. In a disk harrow, the combination, with the gangs, of scraper-rods above the gangs, a

series of scrapers connected with the rods, supports connecting the outer ends of the rods and the scrapcrs loosely with the main frame, supports for the inner ends of the rods and the scrapers, thiinbles surrounding the scraper-rods, and springs interposed between the thimbles and the supports at the inner ends of the scraper-rods, whereby the Scrapers and their rods are automatically maintained in working relation to the disks, but are tree to move in their supports, substantially as set forth.

1.(5. In a harrow, the combination of the frame, the vibrating thrust-bar connected at its ends to the main frame, and the vibrating gangs connected at theirinner ends to the thrust-bar, substantially as set forth.

17. In a disk harrow, the combination,with the mainframe and. the vibrating gangs, of draw-bars connected at their rear ends to one of the gang-axles, and a thrust-bar connected at its rea-r end to the main frame and at its front end to the draw-bars, substantially as set forth.

1S.A In a harrow, the combination of the main frame, the vibrating thrust2 bar connected at its rear end to the main frame, the vibrating gangs, and the draw-bars connecting the gangs with the thrust-bar, substantially as set forth.

, 19. In a harrow, the combination of the main frame, the vibrating vthrust-bar connected at its rear end to the main frame, the vibrating gangs and4 two draw-bars, each connecting one of the gangs with the thrust-bar, substantially as set forth.

20. In a harrow, the combination of the draft-frame, the vibrating thrust-bar con- `nected at its rear end to the main frame, the vibrating gangs connected at their inner ends to the thrust-bar, and the link arranged within reach of the driver and connected at its lower end to the thrust-bar, substantially as set forth.

2l. In a harrow, the combination of the main frame, the vibrating thrust-bar con nected at its rear end to the main frame, the vibrating gangs connected'to the thrust-bar, the link and locking devices connectingv the link with the main frame for adjusting the thrust-bar and gangs, substantially as set forth.

22. In a disk harrow, the combination of the main frame, the vibrating thrust-bar connected at its rear end to the main frame, and the part L, connecting the thrust-bar with the tongue, substantially as set forth.

23. In aharrow, the combination of the main frame, the vibrating thrust-bar connected at its rear end to the main frame, the vibrating disk-gangs, and the part L, and devices adjustably connecting its front end to the tongue, substantially as set forth.

24. In aharrow, the combination of the main frame, the vibrating thrust-bar connected at its rear end to the draft-frame, the vibrating IOO IIO

gangs connected at their inner ends to the thrust-bar, the part L, and thelink substantially as Set forth.

25. In a combined disk harrow and seeder, the combination of the disk-gang, the seedbox or fertilizer-box, a distributer in the box, a crank on the axle, a lever attached at its lower end. to the crank, and a lever and connections interposed between the lever and the distribnter, substantially as set forth.

2G. ln a combined disk harrow and seeder, the combination of a dislegang, a seed-box or fertilizer-box, a distributer in the box', a crank on the disk-gang', a vertical rod attached at its lower end to the crank, an adjustable bearing connecting' the upper end of the rod with the box, and the lever and connections between the rod. and the distributer, substantially as set forth.

27. In a combined disk harrow and seeder, a combination of the disk-gang, a seedcr-boX, a chain distributer in the seed-box, a crank on the `gang-axle a vertical rod attached at its lower end to the crank, a lever and eonneetion between the vertical rod and one end of the chain to move the chain in one direction, and a spring at the other end of the chain to move it in the opposite direction, substantially as set forth.

28. ln a combined disk harrow and seeder, the combination of a disk-gane', a seed-box, a distributer in the box, a vertical rod attached at its lower end to the crank, a lever pivoted to the seedbox and l1 avingI one arin connected to the vertical rod, a crank-axle connected to the other arm of the lever, and a connection between the crank-axle and the distribnter, substantially as set forth.

29. The combination, with a Seed-box llaving,I a perforated bottom, of two lilies of chain arranged parallel to each other, a spring` connected with. one end. of one chain for moving` it in one direction, a link connected to the adjacent end of the other chain for moving itin the Same direction, and means conneetinf.;` the opposite ends of the chains, wherebyv the chains are moved simultaneously but alternately in opposite directions, substantially as set forth.

30. The combination, with a seed-box having` a perforated bottom, of two lines of chain arranged parallel to each other, a springl connected with one end of one chain for moving it in one direction, a link connected to the adjacent end of the other chain, and the levers pivoted to the seed-box and connecting the opposite ends of the chains, substantiallv as set forth.

3l. The combination, with the disk-gang and the box, of a fertilizer-distrilmter having' a rocking shaft, the crank on the gangaxle, the lever, and means connecting' the lever with the rocking' shaft, substantially as set forth.

32, The combination,with the gang' and the box, of a seed-distributer having' a rockingY shaft, the crank on the gangaxle, the lever, means for connecting the lever with the seeddistributer, substantially as set forth.

In testimony whereof l atiix nivsignature in presence of two witnesses.

FRED. It. NORTON.

lvitnesses:

A. F. CoRBIN, l". A, PETERSON.

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