US423523A - little - Google Patents

Description

(No Model.) v 2 sheetssheen 1.

` PQE. LITTLE.

HARROW.

No. 423,523. l Patented Mar. 18, 1890.

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(No Model.) 2 Sheets-Sheet 2. P. E. LITTLE.

HARROW. No. 423,523. y Patented Mar. 18, 1890;v

-1 -Y Y Affen Emme @n fil Hof/vlag@ i 'f2 v' v portion of said disk in horizontal section, seen ,UNITED STATES PATENT OEEICE.

PETER E. LITTLE, OF DAYTON, OHIO, ASSIGNOR TO THE OHIO RAKE COMPANY, OF

SAME PLACE.

HARROW.

SPECIFICATION forming part of Letters Patent No. 423,523, dated Marchv18, 1890. Application filed October Z2, 1887. Renewed November 29, 1889. Serial No. 331,866. (No model.)

To all whom it may concern:

vBe it known that I, PETER E. LITTLE, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Harrows, of which the fol` lowingis a specification.

My invention relates to that class of harrowshaving jointed beams armed with disks and controlled in such manner as to be set at different angles to the line of draft; and it relates primarily to improved means for connecting or jointing the harrow-beams to the draft beam or head, consisting in a certain construction of the hinged joint at the outer end of the draft-beam and between it and the barrow-beam, whereby the harrow-bearn is permitted to rise and fall pivotally in a vertical plane, and to swing back and forth pivotally in a horizontal plane, but is restrained from rocking movement, and, secondly, to such general features of the machine and to such subordinate details of construction as may be hereinafter described andclaimed. Y f

In the drawings, Figure l is a side elevation of a harrowembodying myinvention, with the nearerv end ofthe gang or harrow beam removed and the draft-beam in section. Eig. 2 is a side elevation, enlarged-,of one of the harrow-disksAwith the gang-beam above in section, showing my-improved-scraper in connection with said beam and acting upon the disk inl its proper relative position; Fig. 3, an enlarged, detail of said scraper with a portion of the harrow-disk in section and a part of thescraper-bracket broken away to s how` the pressing-spring and the means whereby its tension is adj usted, all seen from the rear; and Fig. 4, a like detail from the front, except that the entire disk is shown in transverse section, seen from the top. Fig. 5 is an enlarged -detail of said scraper and a from the top; Figs. 6, 7, and 8, enlarged details of the hinged joint between the draftbeam and gang or harrow beams, respectively in transverse section, top plan view, and front elevation; Fig. 9, a section through said joint on the-line indicated by corresponding letters each side.

in the sixth figure, and Fig. l0 an enlarged detail of that member of said joint which more appropriately is attached tothe harrowbeam or gang-beam.

A is the draft-tongue, having atits rear end the inclined standard A', bearing an appropriate seat and beneath said standard having the rigidly afliXed transverse frame-bar or draft-beam B, which extends lto nearly th'e entire width of the -harrow equidistant upon To this' draft-beam, beneath its outer ends, are pivoted at a point near their own outer ends the two gangor harrowbeams C, extending from the pivotal points inward until they nearly meet, being allowed to rise and fall vertically and swing back and forth upon their pivotal connection with the draftbeam, but at no time to rock thereupon. Each of these gang-beams supports a gang of disks D, which revolve upon a shaft, rod, or journal D, carried in bearings at the lower end of hangers E, depending from the gangbeams near each end thereof and the inner brackets; or else the inner ends of the beams are connected by links e, with the lower end of a lever E', pivoted to and latching` into a segment-rack E2 upon the draft-tongue.

As thus far brieiiy described, the machine.

in its general features does not diifer materially from others heretofore in use.

The hinge-joint betweenthe draft-beam and the respective gang-beam at that side of the.

draft-tongue is constructed as follows: Aplate F is secured to the top of the gang-beam' and provided at each end with ears or offsets f f2, rising slightly and curving, respectively, to

the front and rear, and near their ends rounded into trunnions or journals. The rear offset is prolonged beyond the journal part into a downwardlyextending hook f3, but inside the journal has an upwardly-extending shoulder f4, to'serve as a stop against endwise movement. To the draft-beam is. bolted a rear bracket ll', having a downwardly-extending eye-lug h', and also having inside of this bracket and above the bearing-point a shoulder h2, reversely set to the shoulder upon the rear offset to engage therewith. The front bracket l', also bolted to the draft-beam, has

two lugs t', placed at a distance apart corre-` upon the bearings for the trunnions afforded sponding with the length of play desired in the angular adjustments of the harrow-gangs and connected above by a depending horizontal flange 112, the edge of which forms the upper memberof the guide forthe front journal of the lower plate. The lugs receive a bolt I2 beneath and parallel 'with this iiange and at such distance therefrom as to form therewith a horizontal guideway i3, andvof such diameter as to practically prevent any vertical movement of the front journal or trunnion. The upper brackets may also be connected by a horizontal eyebolt K, which will serve alsoV as a hound-bolt. In assembling the parts of this hinged jointit will be understood that the bolt I2, which herein performs the office of assembling-bolt, will be removed.l Then the rear trunnion of the plate upon the gang-beam will be hooked into the eye depending from the rear bracket on the draft-beam, and the gangbeam will be rocked upward until the two trunnions have been brought into horizontal position and both the draft-beam and gang-beam are parallel. This will bring the shoulder on the rear offset against the shoulder of the rear bracket, and will bring the front trunnion practically against the upper edge of its guideway, when the assembling-bolt will be slipped into place, secured by its key, and the fastening be complete. The gang-beam will then be free to rise and fall vertically by the eye and guide and to be adjusted angularly, as the beam in swinging horizontally will carry the front trunnion with it along the guide formed by the front bracket and the horizontal bolt thereon, the rear trunnion hinging or swiveling in the eye of the rear bracket in such movement; but both trunnions will resist axial rocking of the gang- .beam, owing to their confinement in the eye and front'guideway.

In order that the inner ends of the harrowbea'ms may be kept at a suitable distance from the draft-beam. when swung forward parallel with or past it, and may not rise vertically so far as to "strike against and abrade it., their upper sides are armed with 'wearplates Land the under sides of the draftbeam opposite these plates are provided with metal runners L, extending transversely thereacross, and of such length that they will come above the barrow-beams or part thereof at any reasonable range of adjustment, so as to stop their vertical movement, and in the backand-forth adjustments run upon the wearplates and ease the friction. Such, however, form no part of the present invention. The barrow-disks, moving as they often do in damp soil or coming in contact with clods of grass or other matter that will adhere, frequently carry up earthy and fibrous particles, which in the end accumulate so as to seriously clog the machine. It has therefore vbeen 'customary to apply Scrapers to such disks,p`ressed against them yieldingly and clearing their concave sides somewhat above and behind the axle. Such Scrapers have also been made double-jointed-that is, one arm was spring pressed toward the disk, while the other arm, pivoted tothe lower end of the first and extending above and beneath the mutual pivot, vibrated thereon so as to adj ustitself to the face of the disk. Such a scraper l have chosen to illustrate my invention, so. far as it regards this feature of the machine. To the rear edge of the gang-beam above such disk I attach a bracket M, having a cylindrical socket m, inclined downward toward the concave face of the adjacent disk, and open at its lower end to receive a coiled spring m', the top of which sets into a movable cap m2, borne upon by a set-screw ma, passing through the upper end of the socket. At that end of the bracket nearest to the disk is pivoted an arm N, having a spur fn, which comes in line with the open end of the socket and enters into and is pressed upon by the lower end of the spring therein, whileto the eXtreme lower end of the arm is pivoted a scraper-blade O, that mayV be of hardened metal and have its edge set obliquely to meet the movementof the disk, and thus more efficiently clear it. Tere the/,end of the spring exposedat the rear,as it would be if the walls of. the socket ended in an unbroken plane, particles of earth or mud thrown up by the disk might work into it and iinally impede its action. Therefore I extend the rear side of the socket down, or, converselyfcut away the other side, as at o, so as to allow the arm and at no time to project beneath it, thus com pletely shielding the spring from mud and dbris. i

l. The combination, substantially as here--y inbefore set forth, to form a double-jointed hinge, of a plate having trunnions at front and rear, the latter being hooked, an eye into which the reartrunnion hooks, a guideway into whichiv the front trunnion takes,'and the removablepin forming 011e side of such guideway'and confining the trunnion set therein.

2. The combination, substantially as hereinbefore set forth, of the plate F, having shouldered and hooked rear offset and front offset `its spur to play up behind the extension, but

affording journals, the bracket H', having an eye at its lower end and a shoulder to match the shoulder on said rear offset, the bracket I',

having the straight guideway opposite the a bracket M, secured to the rear edgerof the gang-beam adjacent to said disk, the cyV` lindrical socket m upon said bracket directed obliquely downward toward the adjacent disk andv extended at the rear to form `a shield, the' spring sitting within said socket and the cap receiving the head of the spring, the set-screw pressing upon said cap, the scraper-arm N, pivoted' to the bracket adjacent to the disk and depending theretowardandhavinga spur 1Q l n, which enters the front cut-away portion n of the socket and receives the lower end of the spring, and the scraper-blades pivoted to the lower end of the arm.

`P. E. LITTLE.

Witnesses:

' SEBASTIAN RITTY,

JOHN S. DAVIS.

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