US1413687A - Grader - Google Patents

Description

F. W. SCHWEITZER.

GRADER.

APPLICATION FILED SEPT- 7. 1920.

1,413,687; Patented Apr. 25, 1 22.-

UNITE ,s'rres PATENT FRED w. scirwmg zna, or MONITQR rownsmr, BAY co NTY, MICHIGAN.

GRADEBL.

Application filed September 7, 1920. Serial No. 408,526;

T 0 (Lil whom it may concern:

Be it known that I, FRED W. SoHWEITZER,

acitizen of the United States of America, residing at Monitor Township, in the county ofBay and State of Michigan, have invented certain new and useful Improvements in of which the following 1s a specifi- Graders,

cation. o

This invention relatesto graders and the llkQ. 1 v

: One object of the invention is to design a grader which will require a minimum amount of power to operate.

Another object is to provide a grader which can be turned from operative position and which can be readily drawn over the soil and roadways.

A still further object is to construct a machine which can be used as a ditcher for farm use and which will also be equally eflicient for grading the usual roadways.

With the above and other objects in view, the present invention consists in the combination and arrangement of the different parts. hereinafter more fully described, illustrated in the accompanying drawings and more particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, proportion and minor details without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings I Figure 1' is a side view of my improved grader.

Figure 2 is a top plan view thereof.

Figure 3 is a section taken on the line 33 p of Fig. 1, and v Figure 4c is a rearview of the grader illus trating it inoperative position.

Referring now particularly to the drawing in which the landside of the grader is indicated by the numeral 1, and to which is'rigidly secured the moldboard 2 by means of the brace members 3 and 4, the said brace members being secured to the landside and mold-board by means of bolts or countersunk rivets, so that the outer surface of the moldboard may present a smooth appearance. This mold-board is curved to roll the soil and is secured to the forward end of the landside, a spacer member 5 being positioned as shown in Figures 2 and 3.

As designed the grader is to be drawn by horses, the draft bar 6 being secured to the mold-board and extends transversely through the landside and is provided with openings 7 therein for attachment of "the clevis 8, a brace bar 9 extending rearwardly and being secured. to an 'eyebolt 10set'in' the landside.

A platform 11 is provided as shown on which the driver rides, and this platform is so positioned that the weight of the driver thereon will nicely balance thedraft ofthe grader.

Hand rings 12 are secured to the" landside and the brace 45 respectively for the convenience of the driver in pulling the grader back when occasion requires.

It will be obvious that when the grader is operating on a ditch or roadway that the tendency of the mold-board will be to slide the landside, and I therefore provide the plate member 13which I securely fasten to f the landside asshown, and whichextends into the soil and acts as a rudder'for the grader, the plate extending below the ground line a distance at least equal to the depth of cut of the mold-board.

I wish to direct particular attention to the shape of the-landside which is cut out as shown at 14, the depth thereof being less at the rear than at the front, this is to provide clearance for large stones, sticks, or other foreign matter which would otherwise raise the grader and. rudder and allow the grader to slide, by forming this landside as shown, stones and other obstacles will merely'raise the forward end of the grader,

and the rudder being relatively thin and sharp will force them to either side thereof. Inmovinglgrade-rs'of this type from one location to another the grader generally digs of brackets or the like to the forward end' thereof, these wheels extend slightly below the bottom of the landside when it is in the forward end of the grader free from the roadway, the rear end dragging and it will i be noted. that whatever wear there is will be on the steel rudder plate 13. For turning the grader to the position shown in Fig. 4 a detachable handle 16 is provided and is seated on the keepers 17 secured to the inner side of the mold-board, this handle can be of any convenient length to enable the operator to easily turn the grader to operative or inoperative position.

lsroin the "foregoing description it will he ol'wious that l have perfected a simple and inexpensive grader very eflieient in operation which will not slide, and which can be readily converted and transported from one location to another,

What I claim is V 1. In a grading apparatus comprising an elongated landside having a mold-board ri idly seeured thereto. steering means secured to the rear end of said landside, and Wheels secured to the forward end of the mold-board for raising and supporting the forward end of the grader above the ground level when the grader is turned to inoperative position.

2. In a grading apparatus comprising a landside having a mold-board secured thereto, the forward end of said landslide being of greater depth than the rear end for clean ing obstacles and the like a plate rigidly secured to the rear end of the iandside and extending downwardly thereiroim Wheels journaled to the front end of the landside and adapted to support the forward end of the grader above the ground When the grader is turned to inoperative position.

3. In a grading apparatus comprising a landside having a mold-board rigidly secured thereto and spaced therefrom, the forward end of said landside being of greater depth than the rear end for clearing obstacles and the like, a rudder plate secured to the rear end of the landside, a detachable handle for turning the grader to inoperative positioin and Wheels journaled to the forward end or" the mold-board and adapted to support the forward end of the grader elear of the ground when the grader is turned to inoperative position.

Intestimony whereof I afiiX my signature.

FRED W. SCHWVEITZEEQ

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