US971591A - Harrow. - Google Patents

Description

J. E. BOOTH.

HARROW.

APPLICATION FILED JULY 29, 1909.

Patented OM14, 1910.

JAMES E. BQQTIET, OF DES IVE-GENES, IOVJ'A.

HARROW.

Specification of Letters Patent.

Patented (let. d, 1916.

Application filed July 29, 1909. Serial No. 510,318.

To all whom it may concern:

Be it known that T, JAMns E. Boo'rir, a citizen of the United States, residing in Des Moines, county of Folk, and State of Iowa, having invented a new and useful Improvement in Harrows, of which the following is a specification.

The object of my invention is to provide a means for elevating the outer ends of the end sections of a sectional harrow so as to cause a wide harrow to be sufiiciently narrow to pass through gates, narrow lanes, and the like, when being transported to the field of operation.

Another object is to provide a wheel truck, for a sectional harrow, combined with means for uniformly elevating all the sections thereof and thus throw the wheels in operation and cause the harrow to ride on the truck during transportation.

A further object is to provide a sectional evener bar, or draft, for a sectional barrow, which will cause the draft to be evenly dis tributed to the sections of the harrow, when it is in operation, but which will also cause all the draft to be concentrated on the central section when the harrow is being hauled. to the field of operation.

My invention consists of certain details of construction, hereinafter set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which Figure I shows a plan view of my im- 1 proved harrow; Fig. 11 shows a front elevation view of the same, the dotted lines indicating the positions the outer, or end, sections assume when they have been elevated; and, Fig. III shows a sectional view taken on the line 33, the dotted lines indicating the position of the central section, when it is elevated.

Referring to the accompanying drawings the reference numeral 10 is used to indicate the tooth bars of the central section of my harrow, said tooth bars being provided with the customary teeth and also being held in parallel and permanent relation to each other by a plurality of channel beams 11, which are pivotally secured to each bar. The two outer sections 12 and 13 are each constructed in exactly the same manner and the inner channel beams of the outer sections are secured, by pivotal bearings 14 and 15 respectively, to the outer channel beams 11 of the central action which are adjacent their respective sides.

.the evener bar which I employ is constructed of three sections, 16, 17 and 1S, hinged together as shown, the central section being immediately in front of, and loosely secured to, the central section of the harrow, and the two end sections are in like manner located in front of, and secured to, their respective sect-ions.

Each of the sections of the harrow is provided with a lever, and its attending means, to change the angle of the teeth. but as this means is old special reference will not be made to the same except to state that the levers on the outer sections are so located that they may be easily grasped by the driver without leaving his seat.

The truck which I employ is provided with a cross bar 19, located in the rear of, and higher than, the central section of the harrow and near each end of this cross bar is mounted, for rotary movement, a clownwardly extending arm, 20 and 21, respectively, to which is secured a wheel 22 and 23, respectively. The drivers seat 2 1-, is centrally located on said cross bar, and extending forwardly from the said cross bar to a point, centrally, in advance of the evener bar, and above the sections of the harrow, is a V shaped standard, or support, 25, the point of the standard being in front. Secured, for rotary movement, to the forward portion of said standard 25, and extending downwardly therefrom, is an arm 26 to which is secured a wheel 27. The wheels 22, 23 and 27, are designed to carry the sections of the harrow, when they have been raised, as hereinafter described.

One of the channel beams of the central section of the harrow is designed to be centrally located thereon, and between the arms of said V-shaped plate 25, at a point above the extremity of said central channel B is a pulley 28. A chain 29 is secured near the forward portion of the said channel beam and extends upwardly therefrom through the pulley and rearwardly to a connection with a rod 30, said rod projecting rearwardly therefrom to a loose connection on the shaft of a lever 31.

The numeral 32 indicates a chain secured near the rear end of, and extending upwardly from, one of the outer channel beams of the central section of the harrow, and the numeral 33 indicates a like chain mounted in a like manner to the opposite outer channel beam of the said section. The upper extremities of these chains are connected to their respective downwardly projecting arms of an elongated U shaped member 3 1, the horizontal portion of which extends across the rear end of the V shaped support to which the U shaped member is mounted for rotary movement. The lever 31 is rigidly secured to the horizontal portion of the U shaped member.

The numeral 35 indicates a lock lever which is designed to engage the lever 31, and retain it in position, when it has been forced rearwardly.

The numeral 36 indicates a clevis mounted to the forward extremity of the V shaped standard and said clevis is provided with a ring 37 to which the double-tree is designed to be fastened. Secured to the ring 37 and extending rearwardly therefrom are two rods 38 and 39, the rear ends of said rods being connected with the central section of the evener bar, one near each end thereof. Also secured in the ring 37 and extending outwardly and rearwardly therefrom are two other rods 40 and 41, said rods extending in opposite directions and each loosely connected with the rods 42 and 13, respectively, which are loosely secured with their respective outer sections of the evener bar. The construction of these rods is such that when the sections of the harrow are down, and ready for operation, the rods will all draw evenly on the evener bar thus equally distributing and evening the draft, but when the outer sections of the harrow are raised the rods 40 and 42, and 4:1 and 13, will break, from their loose connections, and throw all the draft on the central section of the evener bar and the V shaped support.

In practical operation if the operator desires to transport my harrow from one field to another he raises each of the outer sections by grasping their respective levers and pulling them toward himself. It is obvious that this will cause the sections to move upwardly and inwardly from their connections, 1 1 and 15 respectively, and the outer sections of the evener bar will also move upwardly therewith from their hinge oints. As the outer sections of the evener bar move upwardly the rods a0 and 42, and a1 and 13, will break from their loose connections, as shown by the dotted lines in Fig. IT. This action assembles the parts close to the body of my device and causes it to be sufficiently narrow to pass through gates, lanes, and the like. The operator then pulls the lever 31 rearwardly and looks it with the lock lever 35. The movement of the lever 31 raises the forward part of the central section of the harrow by pulling the chain 25) through, or over, the pulley 28. At the nine time, and by the same movement, the lever rotates the L shaped member 31, thus elevating its downwardly extending arms and this action raises the chains 32 and 33, thus raising the rear portion of the central section of the harrow. The parts are so constructed and operated as to cause the raising of the front and rear portions of the central section of the harrow to be uniform and simultaneous. It is obvious that when the harrow is raised it will ride on the truck hereinbefore described. hen the harrow is in operation the lever 31 is at its forward limit of movement and the sections are lying on the ground supported only by the teeth. it such times I place a cross bar between the wheels and 23 which projects between the spokes thereof and engages the rear of the arms 20 and 21, thus securely locking them and causing them to slide if they should come into contact with the ground by reason of any unevenness or irregularities therein.

Having thus described my invention what I claim and desire to secure by Letters Patent of the United States is:

1. A harrow, comprising in combination, a central and outside harrow sections pivotally secured to one another and to a sectional evener bar, a triangular truck adapted to have said harrow sections suspended therefrom, a plurality of draft bars secured to the sections of said evener bar and having a common point of draft substantially at the apex of said triangular truck and means for raising said harrow sections to suspend them from said truck.

2. A harrow, comprising in combination, a central and outer harrow sections, and evener bar formed in a corresponding number of sections and secured to the front ends of said harrow sections, a triangular truck adapted to have said harrow sections suspended therefrom, having its apex extended over the front of said central harrow section, a plurality of draft bars connected to said sections of said evener bar and having a common point of draft with said apex of said triangular truck, and means for raising said harrow sections to suspend the latter from said truck.

JAMES E. BOOTH.

mark lVitnesses ZELL G. Ron, B. M. Snnewrcx.

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