US426695A

US426695A - Harrow

Info

Publication number: US426695A
Authority: US
Publication date: 1890-04-29
Anticipated expiration: 1907-04-29

Description

No Model.)

W. V. WALKER. HARROW.

J ,6 I [1/ 2' ,2; 455 VIIV [IV 1' 2 E iii z' PATENT \VILLIAM V. VALKER, OF MORAVIA, NE\V YORK.

HARROW.

SPECIFICATION forming part Of Letters Patent NO. 426,695, dated April 29, 1890.

Application filed March 11, 1889. $erial No. 302.8 19. (No model.)

To aZZ whom, it may concern:

Be it known that I, l/VILLIAM V. VALKER, of Moravia, county of Cayuga, in the State of New York, a citizen of the United States, have invented certain new and useful lmprovements in Harrows, of which the following is a specification, reference being had to the accompanying drawings, in which Figure 1 is a top plan view of one section of the harrow. Fig. 2 is a side elevation of a part of a lower frame-bar. Fig. 3 is a side elevation of the lower frame-bar with the upper framebars and teeth in. posit-ion thereon. Fig. 4 is an end View, partially sectional, of the lower frame-bar and upper frame-bar and the fastening mechanism. Fig. 5 is an enlarged detail of the tooth-fastening. Fig. 6 is a top plan view of the plate under the tooth. Fig. 7 is the bottom plan view of the same. Fig. 8 is a side elevation of the same. Fig. 9 is a vertical section of the same. Figs. 10, 11, and 12 are details of the top washer. Figs. 13, 14, and 15 are detailsof the plate used in the connection between the upper and lower framebars.

My invention relates to the construction of spring-tooth harrows; and my object is to improve the constructionof the harrow, in the mode of attaching or securing the teeth adjustably, and in the construction of the frame upon which the teeth are mounted.

My invention consists in the several novel features of construction and operation hereinafter described, and which are specifically set forth in the claims annexed.

It is constructed as follows:

A represents a section of a harrow, which is connected to the other section by a doublehook hinge-joint 1, and in which 2 2 are the frame-bars, usually of wood, 3 3 are the teeth, of ordinary spring-tooth construction, and 4 4: are lower frame-bars, constructed of angleiron and bent upward or scarfed off on a curve or bevel, as at 5, upon their front ends.

B is a clamp-piece, provided wit-h ribs 6 upon its upper side, between which the bars 2 fit, and upon its lower side is provided with a slotway 7 created by the ribs 8, running in opposite direction to the ribs 6, and the vertical part of the angle-iron i fits into the slotway 7, and 9 is a clip or bent bolt fitting through holes 10 in the angle-iron and upward through the frame-bar 2, and thus securing the an glei ron shoes or lower f rame-bars to the upper frame-bars, and, the front ends of the bars 4 being beveled, the harrow, when in use, will ride upon the ground upon the angle-iron shoes. It will thus be seen that my harrow-frame consists, simply, of the bars 2 and shoes 4, secured together.

To secure the teeth inposition upon the top of the bars 2, I first place upon the bar a washer 0, provided on its lower face with studs 11, fitting in holes or recesses in the top of the bar, to prevent it from twisting, and the upper face is provided with two parallel ribs 12, between which the tooth fits, and one of them is provided with a notch 13, and the upper face between these ribs is inclined, as shown in the drawings, for reasons hereinafter specified.

D is the top washer, fitting upon the top of the tooth and partially at least between the flanges 12, and it is provided on one side with a downwardly-projecting stud ll, of a shape corresponding to the notch 13, in which it fits and prevents any twisting of this washer, and the top face of this washer is beveled to correspond with the bevel of the plate 0. A bolt 15 is inserted through the frame-timber 2, upward through the plate O, through a hole in the tooth, and through the washer D, and when screwed up locks all these parts securely together. It will be observed that when the bevels of theplate and washer slant forward the point of the tooth will be correspondingly raised, and that when the plate and washer are reversed so as to slant backward the point of the tooth will dig correspondingly deeper into the soil, thus adjusting the depth to which the tooth will out.

hat I claim is- 1. A harrow-frame consisting of upper frame-bars resting upon a plate, a plate provided with parallel ribs across its lower surface, and angle-iron lower frame-bars fitting between the sides of the slot in the plate, and a bolt passing through the upper frame-bar, the ribs on the lower face of the plate, and the rib of the angle-iron, as set forth.

2. The combinatiomwith the tooth and the upper frame-bar of the harrow, of a plate fitof the angle-iron and having transverse up- Ward flanges, between which the upper framebar fits, and an upper frame-bar, and a bolt passing through the rib of the lower framebar, the clamp, and the upper frame-bar, as set forth.

In Witness whereof I have hereunto set my hand this 5th day of March, 1889.

\VILLIAM V. \VALKER.

In presence of \VILLIAM Frr'rs, JAMES MACKIE.