US389502A - Michael daley - Google Patents

Description

(No Model.) MnDALEY.

HARROW. N0. 389,502. :Patented sept. 11, 1888.v

WITNESSES n INVEJVTOR N, Pneus, Pmwmmnpnef. wmmnm of Q UNITED' STATES PATENT OFFICE.

MICHAEL DALEY, on DE KALB, ILLINOIS, AssIGNoa To THE DALEY MANU- FACTURING COMPANY, or SAME PLACE.

l-lARRow.V

SPECIFICATION forming part of Letters Patent No. 389,502, dated September 11, 1888.

Application filed March 20, 1888. Serial No. 267,859.

.To all whom it 71mg/ concern.-

Be it known that I, MICHAEL DALEY, a citizen of the United States, and a resident of De Kalb, in the county of De Kalb and State of Illinois, have invented certain new and useful Improvements in Harrows; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a representation of the invention, and is a top View thereof. Fig. 2 is a side view; and Figs. 3, 4, 5, and 6 are detail views.

The invention relates to improvements in harrows; and it consists in the construction and novel combination of parts, as hereinafter set forth.

Referring to the drawings, A designates the tooth-bars, preferably angular in cross-section, and B shows the barrow-teeth.

G is a socket having the square or angular opening a through its head portion adapted to fit closely over the angular bars A. The

' depending socket is interiorly threaded for a portion of its way, as at a', to engage the threaded end of the tooth. The section b of the socket below its threaded portion is designed to embrace the rounded neck b of the tooth,.thus'protecting the tooth from direct strain upon the first thread or weaker portion.

The main portion Vof the tooth is made angular, as shown, so that an ordinary wrench may be used to turn the tooth and bring its upper end against the lower edge of the tooth-bar to clamp the sockets irmly thereon.

D represents double lever-arms, having the angular opening c near the center, throughwhich the tooth-bars pass. A set-screw, c', as shown, impinges upon the edge of the bar and holds the lever-arms in place.

E is the operating bar, transverse to the tooth-bars, `pivotally connected to the upper arms of the lever-arms D by a bolt, d, having a squared end, which passes through a square opening in the bar E, a round opening in upper arm of the lever D, and through an opening in the clip-strap F, where it is provided with a thread and nut.

( No model.)

The bolt d by its squared portion is prevented from turning, and the lever-arm is adapted to turn on the bolt, which obviates the possible loosening of the nut by friction.

The clip-strap F is provided near one end with a malleable-iron rivet, d', cast integral therewith, which is riveted within the open ing in the bar E forward of the pivot-bolt, and a strengthening-rib, e, is cast on the outerface of the return portion of the clip-strap.

G is the draft-bar-connected to the lower arm of the double lever in a similar manner to the bar E.' The draft-bar G' is similarly connected to the tooth-bars near the opposite end. The lever-arm in this case, however, is not provided with the upper arm.

The draft-bars G and Gr have the upwardlyturned frontend, which permits them to be used as runners when it is desired to draw the harrow from field to field or along the road. When so used, 'the teeth are lifted from the ground, as hereinafter explained.

H is the hand-lever pivotally connected to the bars E G, as shown, provided with the detent e', for engaging the semicircular rack f. The rack f is rigidly attached at its ends to the bar E at equal distances from the point where the hand-lever is pivoted to bar E.

The brace-rod I is rigidly secured to the bar E and stands at an angle thereto toits pivotal connection with the middle tooth-bar, the connection being like the connections of the draftbar G. By means of the leverarms and connections the barrow-teeth may be adjusted vertically or at any desired angle with the ground. By throwing the lever H forward the teeth will be brought parallel tothe ground, allowing the draft-bars to come in contact with vthe tooth having the threaded end adapted to clamp the socket on the tooth-bar, substantially as specified.

2. rlhe socket having the angular' opening, the threaded portion, and the section b, de-

, the ground, thus providing a means for trans- IOC signed to embrace the tooth below its threaded having the threaded end, the lever-arms, the portion, substantially as specified. setscrew, the bars E and G, the clip-straps 3. In combination with the tooth-bars, the having the malleable-iron rivets, the bolts, the lever-arms having the angular opening and hand-lever having the detent, and the rack, x5 5 the setserew, substantial] y as specified. substantially as specified.

4. In a harrow, the clipstraps having near In testimony whereof Iaix my Signature in one end the integral malleable-iron rivet, subpresence of two witnesses.

stantially as specified. I MICHAEL DALEY.

5. In a harrow, the combination of the an- Witnesses: :o guiar tooth-bars, the sockets having the angu- ELI B. GILBERT,

lar opening and the threaded portion, the teeth ABNER WOOD.

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