US311544A - Harrow - Google Patents

Description

(No Model.)

A. W. THOMAS HARROW.

N0. 311,544. Patented Feb. 3, 1885.

llnrireio Srarns Farmer @rricn,

ANTHONY \V. THOMAS, OF BEDFORD, INDIANA.

MARROW.

SPECIFICATION forming part. of Letters Patent No. 311.542 dated February 3, 1885.

Application filed July 9, 1884,

To all whom it may concern.-

Be it known that I, ANTHONY W. THOMAS, a citizen of the United States, residing at Bedford, in the county of Lawrence and State of Indiana, have invented new and useful Hal row, of which the following is a specification, reference being had to the accompanying drawlugs.

My invention has relation to harrows and attachments therefor, and the object of the invention is to provide an implement of the class referred to that shall possess superior advantages in point of simplicity, inexpensiveness, durability, and general eiiiciency; and it consists in the construction and novel arrangement of parts, as will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings, Figure 1 is a view in perspective of my improved harrow, with the plowingin attachment connected thereto. Fig. 2 is a side elevation. Fig. 3 is a vertical longitudinal sectional View.

Referring by letter to the accompanying drawings, A A designate the side rails, B the front rail, and C the rear rail, of the harrowframe, which are put together by moi'tises and tenons, and strengthened by corner-braces. The side rails, A A, converge from the rear rail to the front rail, and project beyond each of the rails 13 and (l. The front ends of the side rails are provided with clevises D, by which toattach the horse, team, or teams, as the implement may be operated by a single horse, or by two, three, or four horses, according to the size of the implement, which may be varied in dimensions and in the number of tooth'bars and teeth without departing from the character of the invention. The side rails, AA, are provided with a series of eyebolts, E, the threaded shanks of which are passed up through vertical holes in said side rails, and secured in place by nuts E on top of said rails. The eyes of the bolts E project below the under faces of the side rails, and form the bearings for thejournals of the toothed rockbars or rollers F. The rock-bars F are of wood, bound around at the ends with metal bands G, and the journals H are of metal. The rock-bars F are provided with a series of holes which form the seats for the harrowplace by nuts.

(No model.)

teeth I, which may be of any desirable pattern. Angle-ironsJ, having lugs J at their forward ends, are secured to the rock-bars F and F and metal runners K K, curved upwardly and inwardly at their ends, are provided with eyes at the ends of their curves, which are placed in the lugs J and secured therein by bolts and nuts, thus forming hinges. These runners K K are provided with wooden shoes secured in place by bolts, so that when worn out they may be removed and replaced by new ones. The roclrbars F F F are provided at their middles with clip-irons L, having arms L with eyes at their ends. These arms L are secured betweentwo parallel connecting-bars, M M, above said rock-bars by bolts M, passed through said bars M M and through the eyes on the arms L and held in Near their forward ends the bars M M are provided with a series of perforations, N, in any one of which a wooden break-pin, N, may be placed to engage the jaws 0 of a plate, 0, secured to the forward end of a locking-lever, P, fulcrumed to an arm, 0', on the middle of the front rail, B, of the frame.

Above the jaws O of the plate 0' is a crosspin, P, which regulates the distance the jaws descend between the parallel bars M M. These bars M Minay be either of wood or iron. The locking-lever P extends back through a guard and projects over the rear end of the frame.

Between the parallel bars M M is secured the lower arms of a standard, R, the upper end of which is provided with holes madelaterally therein to receive the bolt that connects the metal straps on the forward end of the con necting-bar S thereto. Metal straps S at the rear end of the connecting-bar S are connected by pivot-bolt, S", to a hinged lever, T, fulcru med in bearings projecting from the rear face of the rear rail, 0, of the frame. There is a series of holes in thelever T for the pivotbolt S so that the'connecting-bar S may be adjusted vertically. The locking-lever P is provided on its right face, opposite the metal straps S of the connecting-bar S, with awearplate having projections U U at its ends, and the strap S adjacent to the plate is provided. with a catch, V, which the projections U U engage, accordingly the lever T is shifted.

5 pin N.

2 teeth as they pass over the obstruction.

In order to operate the rock-bars to throw the teeth into or out of the working position, the locking-lever P must be raised to lift the jaws out of the track of the wooden break- If at this time the lever T be in a nearly vertical position,the harrow-teeth will be in a horizontal position, and theprojection U of the wear-plate will have just been disengaged from the catch V. By now moving the to lever T back to the position shown in Fig. 2

the barrow-teeth will be turned down by the turning of the rock-bars into the working position,and by bringing the projection U under the catch V the jaws O on the plate 0 will I engage the wooden pin N and look the rockbars, and consequently the barrow-teeth, in this position. The runners regulate the depth to which the harrow-teeth cut, and by moving the break-pin in the perforations N the angles of the harrowteeth can be changed. If the barrow-teeth strike anobstructionsuch as a stone or rootthe wooden break-pin N will break before the teeth will bend or break, and the rock-bars will be turned by the harrow- It will be then necessary toinsert another breakp1n.

The projecting rear ends of the side rails, A A. are provided with inwardly projecting 0 journals WV, which are strengthened by bracearms'W. Upon these journals W are placed the eyes X of upwardly-curved arms X, secured to the under face of the plow-beam Y, near its ends. The plow-beam Y is provided 3 5 with a series of shovel-plows, Z, extending the entire length of the plow-beam. These plows are designed for use in turning under wheat, oats, and corn.

vided with-a handle, A and a connecting-bar, 0 13*, secured to the middle of the plow-beam by a staple, is provided with a series of lateral holes, (3*, and is connected in the perforated fork D of a standard, IE at the rear of the barrow-frame by a Wooden break-pin, E. If

The plow attachment is prothe plows strike an obstruction, the pin will break and permit the plows to pass over the obstruction without becoming damaged. The

plows may be all used at one time, or some that is necessary is to turn the barrow-teeth and plows up, and the harrow becomes a sleigh, and is moved on its runners.

' Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, isv 1. The combination, with the frame, rockbars, and runners, as described, of the clipirons connected to the rook-bars, the parallel bars connected to the arms of the clip-irons by pivot-bolts and provided with perforations at their front ends for the break-pin, the lookinglever fulcrumed to the frame and provided with jaws near its front end and a wear-plate near its rear end, the wooden break-pin in the parallel bars, the connecting bar, and the hinged lever for operating the rock-bars, substantially as specified.

2. The combination, withthe barrow-frame having journals, standard, and rock-bars, as described, of the plow attachment hinged to the journals and connected to the standard on the barrow-frame by a hinged perforated connecting-bar and a wooden break-pin, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

ANTHONY WV. THOMAS.

\Vitnesses:

WILLIAM ERWIN, J osnrrr GILEs.

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