US839799A - Harrow. - Google Patents

Description

PATENTED JAN. 1, 1907.

F. ADIX. HARROW.

7 APPLICATION FILED JULYS, 1906.

2 SHEETS-SHEET l.

a: a co o n u T V w: W 000 no oi-uoocnuano ,0 a 0 .Ac 0 0 0 o I 0 1106 mace 'No. 839,799. PATENTED JAN. 1, 1907.

F. ADIX.- HARROW.

APPLICATION FILED JULY3,1906.

2 SHEETSSEEBT 2.

FRANCIS iiDlX, OF BOONE, IOWA.

HARROW.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed July 3, 1906. Serial No. 324,691.

ing is a specification, reference being had therein to the accompanying drawings;

My invention relates. to' improvements in harrows, and moreparticularly to tooth structures therefor; and .it consists in the novel construction, combination, and arrangement of parts hereinafter described and claimed.

The objjegt of theinvention is to improve and simp the construction of devices, of this character, and thereby render the same more durable and efficient,

The above and other objectswhich will ap-; pear as the nature of' the invention is better understood are accomplished by the construction illustrated in the accompanying drawings, in which%- Figure 1 is a top plan view of my improved harrow. Fig. '2 is a vertical sectional view taken on the plane indicated by the. line as x in Fig. 1. Fig. 3 isa detail vertical sectional view taken'on the plane indicated by the line 'y y in Fig. 2. Fig. 4.is a detail horizontal sectional view through the coupling or hinge devices connecting thev tooth-bars of two sec-- tions of the harrow, the plane of the section being indicated by, the line 4 4 in Fig.' 3 and Fig. 5 is a'detail perspective view of one of the tooth-bars, ones ct the connecting-bars, and one of the runners for supporting the intermediate'section of the 'harrow whenjthe latter is ndt'inuse.

My imp'roved'harrow consists, preferably, of three similar sections 1 2 3 ,"arranged side by side and hingedly connected, so that the two end or outside sections 2 '3 may be folded together above the intermediate or-middle section 1 when the device is notin use for harrowing. Since these'harrow-sections are substantially alike, a description of one will sufficejor fills Each section consists, preferably, of five transverse toothcarrying bars; or rods 4, mounted for rotation in three 1on gitudinal connecting channel bars or beams 5. The latter are connected together and 8 need apart by diagonal braces 6 in the form 0 man straps having their angularlybent' ends bolted to the connecting-bars. The tooth-bars 4 are in the form of metal tubes or sections of gas-pipe and project through transversely-aiming op'enings in the connecting-bars 5, in which they rotate. They are prevented from slip ing endwise in the bars 5 by split pins or eys 7, passed through openings in the bars 4 on opposite sides of the bars 5.. Washers 8 are interposed between said keys and the channeled sides of the bars 5, as shown. 'In some instances the washers 8 and ins 7 'are'omitted, other parts taking their p aces, as hereinafter described and as {number of barrow-teeth of any suitable orm may be arranged on each of the bars 4; but I'preferably employ spike-teeth 9 and arrange them at suitable intervals along said bars. These teeth have the lower ends of their square bodies pointed, and their upper ends are formed with reduced stems or shanks 10, which extend through openings in vthe bars 4 and are screw-threaded to receive nuts 11. In order to adjust the teeth angularly and hold them adjusted, I provide on each of the bars 4 adjacent to its center an 'arm 12. Thesef arms have their inner ends shaped to fit said barsand are secured thereon by transverse pins 13, and their outer ends are pivotally connected to a connecting rod or link 14., which extends longitudinally'and has its rear end pivoted to a hand-lever 15.: The latter takes the place of 'the arm 12 on the rearmost bar 4 and hasi'ts lowerend I shaped to fit said bar and-secured'thereon by apin 16, The upper end of the lever.l5 is formed with a handle and has pivoted upon it a hand-piece 17,, which operates a s ringseated pawl 18, slidably mounted on t e le-" use of a sled, wagon, or the like, I provide on' the middle'section 1 runners 20. These runners are pleferably carried by the front and rear toot bars 4 and are so disposed that thcyare elevated above the ground When the teeth; are enga ed therewith and are lowered to engage t e ground when the hand-lever is swung'to elevate the teeth. Each of the runners 20 is in the form of acurved or will be seen upon reference to the drawings.

. upon reference to Fig. 1.

cam-shaped arm formed at one end with a 1 portion 21, shaped to fit over one end of one of said bars 4, on which it is retained by a transverse or cross pin 22. When the harrow is supported on the runners 20, its two end sections 2 3 are swung upwardly together above the section 1 and may be retained in this folded position by a small chain or any other mean The folding of the harrow-sections'2 3is permitted by the hinge connections 23, provided between the adjacent ends of the front and rear tooth-bars 4 of each section. Each of the hinge connections 23 consists of a hook member 24 and an eye or loopmember 25, the former being ada ted to detaehably engage the latter. Eac of the hook members 24 is formed with a reduced end or shank 26, ada ted to fit into the inner end of one of sai bars 4 of one of the end sections and to be secured therein by the shank 10 of one of the teeth 9. Each'bf the eye members 25 is formed with a similar end 27, adapted to fit into one end of one of the said bars4 of the middle section 1 and to be secured therein by the pin 22, which attaches the adjacent runner 20 to such bar 4, as clearly shown in Figs.

3, 4 of the drawings. On the front of the two outer connectingbars 5 of each section is secured an apertured plate 29. The plates 29 on each section are connected by twisted clevises or clips 30 to one of the three members of a sectional draft-bar 31. The three members or sections of this draft-bar are connected by hinges 32, which have their pintels in longitudinal alinement with the hinge connections 23, so that the draft-bar folds with the harrow-sections 2 3. The middle member of the bar 31 is connected by links 33 to rings 34, which are in turn connected by links 35 to a ring 36, to which latter the draft animal or animals are attached. Each of the end members of the draft-bar 31 is connected by long and short links 37 38 to a ring 39, which is in turn connected'bv a short link 40 to one of the rings v34, as will be seen It will be observed that when the barrow-sections are open ,or' in the osition shown in said figure the pull or dra t will be. distributed equally on the three sections of the harrow by reason of the said link connections and that when the harrowsections are folded the draft will be entirely upon the middle section 1. In either position there is no-strain whatever upon the hinge connections.

[The operator sits upon a seat 45, mounted r upoi. a riding attachment 42, comprising a wheel-sup orted frame 46, having forwardlydiverging ars 41, which are secured at their front'ends to the central section 31 of the draft-bar. This riding attachment forms the subject-matter of a separate application,

Serial No. 334,447, filed St tember 13, 1906, and need not be described in detail.

The construction, operation, and advantages of the invention will be readily understood from the foregoing description, taken in connection with the accompanying drawings. Itwill be seen that the device is of simple, strong, durable, and comparatively inexpensive construction, that it is convenient and easy to handle, and that it is very effective in operation. One or both of the outside sectrons may be folded without r moving the riding attachment and without interfering with the driver thereon. By hooking the sections together, then folding them, and

lowering the runners 20 the device may be pulled over any road or field or through any gate. It will be 'seen that by adjusting the hand-levers 15 the teeth of the harrow-sec tio'ns may be set at any desired angle or may be thrown upwardly out of operation and the runners 20 on the central section simultaneous ly lowered-to engage the ground. The hinge connections 23 are disconnected when it is desired to adjust the tooth-bars of the several sections of the barrow.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any ofthe advantages of the invention as defined by the appended claims.

Having'thus'described my said invention, what I claim as new, and desire to secure by Letters Patent ofthe United States, is-

l 1. A' harrow comprising a frame, cylindricaltooth-carrying bars rotatable therein,

runners having cylindrical ortions formed with transverse openings to t certain of said 0 lindrical tooth-carrying bars, said runners a so having cam-shaped arms formed integral with said cylindrical portionand projecting laterally therefrom, cross-pins passed through-the cylindrical portions *'of said runners 'and said bars for, retaining the former upon the latter, and means for operating said bars to sin'a-ultaneously elevate the teeth thereon and lower the runners, the latter havingtheir cam-shaped arms disposed longitudinally with respect to the direction of movement of the barrow, substantially as shown and described.

2. A harrow comprising longitudinal channel-metal connecting-bars, braces connecting said bars, transverse bars. rotatable in said channel-bars, teeth u on said transverse bars, cross-pins in .sai transverse bars on oppositesides of said channel-bars, washers on said transverse bars between said crossins and the channebfaces of said channel ars, and means for adjusting said transverse bars in said channel-bars.

3. A harrow comprising longitudinal channel-metal connecting-bars, diagonal braces said rod, a pawl and rack for locking said le-- I0 connecting'said bars, transverse tubular bars ver, and a draft connection at the front ends rotatable in said ehann'el-bars', teeth upon of said channel-bars.

said tubular bars, s lit pins in said tubular In testimony whereof I hereunto affix my bars, arms upon said tubular bars, a rod con- N. A. WALKER,

bars on opposite si es of saidechannel-bars," signature in presence of two witnesses. v washers on said tubular bars between said- FRANCIS ADIX. pins and the channel-faces of said channel- Witnesses: i

necting said arms, a'hand-lever for operating GEO. L. Amx.

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