US1125808A

US1125808A - Harrow.

Info

Publication number: US1125808A
Application number: US80601013A
Authority: US
Inventors: John Hood Brown
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-12-11
Filing date: 1913-12-11
Publication date: 1915-01-19
Anticipated expiration: 1932-01-19

Description

J. H. BROWN.

HARROW.

APPLIOATION FILED DBG.11, 1913.

1,125,888 Patented Jan. 19, 1915.

Z SHEETS-SHEET 1.

TH: NORRIS PETERS co. PHOTC-LITHO., WASHINCTON, D. c

J. H. BROWN.

HARROW.

APPLICATION FILED 13130.11. 1913v Patented Jan. 19, 1915.

2 SHEETS-SHEBT 2.

NU/smo *HE NORRIS PETERS co. PHOYO-LITHQ, WASHINGTON. D. C

UNITED STAT a Parana @FEHEEQE.

I-IARROW.

Application filed December 11, 1913.

T 0 all whom it may concern:

Be it known that 1, JOHN H. BROWN, a citizen of the United States, residing at Morley, in the county of Scott and State of Missouri, have invented certain new and useful Improvements in Harrows, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in harrows, the primary object of which is to construct a harrow which is simple and in-' expensive to construct and yet at the same time possesses the greatest strength and utility.

A further object of the present improvement is to provide an operating and connect ing means for the formation of harrow gangs of any desired size.

A further object of the present invention is to so construct the harrow gangs and operating means that the whole gang is relatively flexible and any portion thereof may be moved independently of its cooperating members.

A still further object of the present invention is to so construct the harrow gang that there is a central draft insuring a steady and even pull on each and every harrow of which the gang is constructed.

In the accompanying drawing: Figure 1 is a top plan view of a harrow gang, consisting of the three harrows and showing in detail the frame construction thereof. Fig. 2 is a sectional view taken along the line 2-2 in Fig. 1, and looking in the direction of the arrow. Fig. 8 is an enlarged detailed perspective View of the nose or apex of the harrow and also showing the central brace in a disassembled relation thereto. Fig. 4C is a detailed perspective view of the connection of the two braces of the harrow frame. Fig. 5 is a perspective view of my harrow showing a plurality of sections united so that they have an independent movement and also showing the centralized draft appliance.

Referring now to the drawings in which like reference numerals designate similar parts, 1 represents the frame of which the harrow is formed. This frame consists of an L-shaped beam which may be of any desired length according to the size of the harrow desired to be constructed. The beam is placed in a bulldozer with a suitable die, the die being so constructed as to make a full oval nose so as to take up the waste material Specification of Letters Patent.

Patented Jan. 19,1915.

Serial No. 806,010.

when the beam is bent to form the isosceles legs of my improved harrow.

As is pointed out above, the beam 1 is bent so as to form a triangle having its apex I rounded as at 2, in order to form the nose of the harrow. At the exact center of the nose, I provide a hook 3, which furnishes a connecting means for attaching a plurality of harrows constructed in this way in order to form a gang. The frame 1 is braced by an L-shaped angle brace l, which is placed adjacent the ends of the frame. In applying the brace 4 to the beam 1 it is inverted so as to present one surface at right angles to the perpendicular edge of the frame 1, and another surface at right angles to the horizontal surface of the frame 1. T he ends of the brace f are cut away so as to snugly fit the angle of the frame 1, and are bolted thereto by means of bolts 5, which pass through the horizontal surface of the brace 1, and also through the horizontal surface of the frame 1.

In order to insure that my improved harrow frame should be perfectly rigid, T provide a brace 6, which is an angle-bar similar to the frame 1 and also the brace 4. This brace 6 is of a length equal to the distance between the nose 2 of the frame 1 and the center of the brace 4. The forward end of the vertical portion of the brace 6 is cut away as at 7 to form a stop for the hook S, and the rear end thereof cut away as at 7 to form a lip 8, which is the connecting means for the brace 6 and the center of the brace l. The aforesaid connections of the brace 6 are made permanent by bolts 9. At regular in tervals along the isosceles of the harrow frame, I provide suitable harrow teeth fas teners which will not be described in the present description, as they form the subject-matter of a co-pending application.

In order that each separate harrow section may be readily lifted or moved in any direction, I provide a handle 10. which is of the usual form and is connected to the harrow by means of braces 11, which have their upper ends connected to the handle 10 at a point 12, and their lower ends to the brace 4, at points 13. The said handle 10 is arranged at such an angle that its lower end extends to a point on the brace 6 equidistant its ends. where it is connected thereto by means of bolts 14.

In assembling my harrow sections, in order to form harrow gangs, the hooks 3 carried by the nose of the harrows are inserted within holes 3, which are carried by the ends of the frame 1, as is clearly shown and will be readily understood by those skilled in this art.

In order to insure that the harrows will drag evenly and keep their outer ends in the same relative position one to the other, I provide a connecting means for the outer ends, which consists of plates 15 having openings registering with openings in the brace 4, the inner ends of these plates 15 being turned at right angles and forming vertical portions which are provided with registering transverse openings 16, for the insertion of a bolt or bolts. By the use of this connection the harrow sections which are connected thereby may be made flexible by the use of one bolt or rigid by the use of two bolts. When one bolt forms the connection between the two plates, it is readily apparent that the said bolt forms a pivotal point between the ends of the two harrow sections which it connects. By the use of a series of these connections 15 and hooks 3, a harrow gang of seven sections may be formed, as is shown in Fig. 5. It is readily apparent that the harrow gang may be made of any size by use of a greater or less num ber of harrow sections. In building up the gangs the sections are so arranged that the drag will be even and to a great extent centralized. This centralization of the angle of draft is accomplished by conforming to a triangular arrangement of the harrows, and this arrangement may be followed out in any odd number of harrow sections. In the present instance where the gang is composed of seven sections, the last four sections are provided with handles, whereby they may be lifted to overcome obstacles and also to dislodge any rubbish that may collect on the teeth. The apexes of these four sections are connected with the ends of the three preceding sections by means of the hooks 3 and the holes 3'. The apexes of the three preceding sections are held in their positions and are connected one with the other by means of a bar 17, and suitable connections 18. This draft appliance will not be further described in this specification, as it forms the subject-matter of a co-pending application.

Attached to the center of the bar 17, I provide any suitable connection 19 between the said bar and the series of whifiletrees 20. The whiflletrees 20 are built up on the inverse ratio to that of the harrows, and consequently at the point of connection 19 there is a central point of draft between the harrows to be dragged and the whiffletrees or any other connection between the harrows and the draft power.

The angle or L-shaped beam is used in the construction of harrow frames for the reason that it has approximately the same strength as a solid frame of the same outside dimensions, and yet is far cheaper and easier to manufacture. Furthermore, by the use of a beam of this character, it maybe easily bent in order to form the nose of the harrow.

By making the frame of the harrow in one continuous piece, great expense and complication is avoided for otherwise a joint or block and joint of some sort or construction would be necessary to join the two sides of the harrow frame.

By constructing a harrow frame, which is composed of angle-beams, and part of the frame of a continuous piece, great expense is overcome in the manufacture, both by the reason of the saving in material and also the saving of time due to the simplicity of the construction.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A harrow comprising a triangular frame, the said frame formed of an L-shapecl beam bent to form a nose and two legs of the frame, a brace carried by the nose of the frame, the said brace composed of an l.- shaped beam and having its horizontal portion fastened to the horizontal portion of the frame, a second brace carried by the ends of the said frame, the said brace composed of an L-shaped beam and having its horizontal portion resting on the vertical portion of the frame and its vertical portion resting on the horizontal portion of the frame, the first-mentioned brace connected to the second-mentioned brace at a point equidistant its ends.

2. A harrow comprising a triangular frame, the said frame formed of an L-shaped beam bent to form a nose and two legs of the frame, a brace carried by the nose of the frame, the said brace composed of an L- shaped beam and having its horizontal portion fastened to the horizontal portion of the frame, a second brace carried by the ends of the said frame, the said brace composed of an L-shaped beam and having its horizontal portion resting on the vertical portion of the frame and its vertical portion resting on the horizontal portion of the frame, the first-mentioned brace connected to the second-mentioned brace at a point equidistant its ends, and a handle, the lower end of which is connected to approximately the center of the longitudinal brace of the harrow frame, braces for the handle, the said braces having their upper ends connected to the handle, and their lower ends fastened to the top of the transverse brace of the harrow frame.

3. A. harrow comprising a triangular frame, the said frame formed of an L-shaped beam bent to form a nose and two legs of the frame, the webs-of the frame so .positioned that the horizontal webs are on the inside of the frame, a brace carried bv the nose of the frame, the said brace composed of an L-shaped beam and having its horizontal portion fastened to the horizontal portion of the frame, a second brace carried by the ends of the said frame, said brace composed of an L-shaped beam and placed in inverted position, a portion of the vertical web of the said brace cut away whereby a portion of the horizontal web of the said brace rests upon the vertical web of the harrow frame and the vertical web of the brace rests upon the horizontal web of the harrow frame, bolts passing through the horizontal webs of the brace and harrow frame, the free end of the first-mentioned brace having a portion of its vertical web cut away, the horizontal portion of the said brace placed under the second-mentioned brace at a point equidistant its ends, whereby the vertical webs of the two braces abut each other and whereby the vertical web of the second-mentioned brace engages the horizontal web of the first-mentioned brace, a bolt passing through the horizontal webs of the said braces.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

JOHN HOOD BROWN.

Witnesses BRIGGS ConsoN, C. W. F ULWOOD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. G.