US2002431A

US2002431A - Road machine

Info

Publication number: US2002431A
Application number: US653691A
Authority: US
Inventors: Omer F Church
Original assignee: ROAD SUPPLY CO
Current assignee: ROAD SUPPLY CO
Priority date: 1933-01-26
Filing date: 1933-01-26
Publication date: 1935-05-21
Anticipated expiration: 1952-05-21

Description

0. F.- CHURCH May 21, 1935.

ROAD MACHINE 0. F. CHURCH May 21, 1935.

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Patented May 21, 1935 -UNITED"S1TATES PATENT; oFFicr. T j

. ROAD MACHINE V omerF; ChurchQArthur, 111., assignor to Road Supply-(10., Arthur, 111., a firm composed .of John S. Pribble and Chester E. Caliill Application January 26, 1933, Serial No. 653,691

3 Claims. (cl. awe-145) V J a y In conjunction withthe sled, I provide a scari- This invention relates to an improvedroad machine and seeks, among other object's, to provide a machine which will effectively scarify and level a road surface. I

The invention seeks, as a furtherpobject, to

provide a machine embodying a scarifier and a sled-supporting the scarifier in sucha way that the machine willslide overthe low places in'the places by the drag of the machine.

A further object of the invention is to provide "a machine adapted for use on ordinary dirt roads and gravel roads, as well as oil roads, and wherein thescarifier may be adjustably raised or'lowered upon the sled.

And theinvention seeks, as a still further object, to provide a machine embodying an improved drag in the rear of the'scarifier, and wherein the drag may be adiustably raised orlowered.

Other and incidental objectsof the invention, not specifically mentioned in the foregoing, will be apparent during the course of the following description.

In the accompanying drawings forming a part of this application, Figure 1 is a plan view of my improved machine,

Figure 2 is a vertical longitudinal sectional view on the line 2-2 of Figure 1, and

Figure 3 is a transverse sectional view on the line 3-3 of Figure 2.

Referring now more particularly to the drawings, I provide a sled embodying side runners In which are preferably formed of suitable I-beams, and extending transversely between the runners, at their ends, are front and rear cross bars I I and I2, preferably formed of suitable angle irons. The runners are beveled at their forward ends, as particularly seen in Figure 2, and extending across the angles between the forward end portions of said runners and the cross bar II are braces l3. Overlying the bottom flanges of the runners, to extend up the inclined forward ends of said run-. ners are appropriate shoes l4 provided at their forward extremities with ears l5 which are bent inwardly to overlie the inner side faces of the runners, and swingingly connected to the forward ends of the runners are clevises I 6, the pivot bolts of which extend through said ears. Connected to said clevises is an appropriate pull chain l1. Near its forward end, the sled carries a channel shaped cross plate l8 bolted or otherwise secured at its ends to the top flanges of the runners and fixed to said plate is a seat I9.

fier, the oblong frame of which is freely received between the runners III. The scarifier frame preferably includes channel shaped side bars and extending transversely between said bars is a front bar'2l, a center bar 22 and a rearbar 23,, all 'of which are also preferablyof channel shape. Fittinglin the front bar 2! is a channel shaped reinforcing bar .24 appropriately secured to the front bar for lending added rigidity thereto and it is now to be observed that the scarifier frame is of such width that the side bars .20 thereof project between the top and bottom flanges of the runners In at the inner sides of the runners so that the scarifier cannot accidentally drop, between the runners to; become displaced. Furthermore, as will be noted, the side bars 20 of the scarifier frame more or. less closelyapproach, the runners Hl at their inner sides :so that the runners willjhold the-scarifier against angular displacement. Lying flat against. the

front faces of the bars 2|, 22-and 23;are rows of teeth 25 and overlying the rows .of;-,teeth are clamping plates ,26-securcd to; the bars. by bolts 21 arranged at opposite sides of the teeth close thereto. The teeth will thus be securely connected with the bars while the bolts will prevent angular displacement of the teeth and, as will be noted upon reference to Figure 1, the teeth of all of the rows are staggered with respect to each other. 7 V

Secured to the top flanges of the runners l0, near the ends thereof, are pairs of alined bearing plates 28 and journaled in said plates are front and rear cross shafts 29. Fixed to these shafts, near the ends thereof, are crank arms 30. Fixed to the end portions of the side bars 20 of the scarifier frame are angle plates 3| and swingingly connecting the cranks 30 with said plates are pairs of links 32. Fixed to the forward cross shaft, near one end thereof, is a hand lever 33 carrying an appropriate latch 34 to cooperate with a segment 35 fixed to the adjacent runner of the sled, and upstanding from the rear cross shaft is a crank arm 36 connected with the lever 33 by a rod 31.

Thus, as will now be seen, the hand lever 33 may be swung forwardly for lowering the scarifier so that the teeth 25 may dig into the roadway to any desired depth, while, by rocking the lever 33 rearwardly, the scarifier may be elevated and, if so desired, lifted to inactive position with the lower ends of the teeth clearing the roadway and, of course, the latch 34, in conjunction with the segment 35, provides a means for locking the scarifier in any position of adjustment. Secured at their forward ends to the inner sides of the runners l0 and at their rear ends to the side bars 20 of the scarifier frame, are links 38 preferably connected with said side bars near the forward and rear ends thereof. These links will, of course, sustain the rearward thrust on the scarifier when the teeth thereof are engaged with the roadway and as the greatest strain will be imposed upon the front row of teeth, the reinforcing bar 24 is provided in conjunction with the front cross bar 2! of the scarifier frame.

Mounted to cooperate with the scarifier is a drag. This drag preferably includes a cross shaft 39 which is supported above the rear cross bar 12 of the sled and fixed to said cross bar, at the ends thereof, are bearing plates 40 journaling the shaft. Fixed to the projecting ends of the shaft are plates 4| and secured at their forward ends to said plates are the leaves of a pair of springs 42, thespring leaves being graduated in length. Secured to the outer ends of said springs is an angle shaped drag plate and fixed to the plate at its upper side is afreinforcing angle bar 44. Fixed to the adjacent runner H) of the sled, forwardly of the rear cross shaft 29, is a segment to which is pivoted a hand lever 46 carrying a latch 41 to coact with said segment, and up standing from the shaft 39, at the adjacent end thereof, is a crank arm 48 connected with the lever 46 by a rod 49.

Accordingly, as will now be understood, the hand lever 46 may be rocked forwardly for elevating the drag plate 43 to inactive position out of engagement with the roadway, while, by swinging said lever rearwardly, the drag plate may be brought into engagement with the road surface. Furthermore, as willbe particularly observed, the hand lever 46 may, after the drag plate 43 has been brought into engagement with the road surface, be further swung rearwardly for tensioning the springs 42 and causing said springs to press downwardly in desired degree upon the drag plate and, of course, the latch 41 provides a means for locking the lever 46 in any position of adjustment.

Thus, after the scarifier has loosened the material of the roadway, the drag will follow in the rear of the scarifier so that the drag plate 43, under the tension of the spring 22 will smooth the loosened material as well as carry the loosened material along from the high places in the road surface into the low places therein so that the finished roadway will be smooth and even.

Having thus described the invention, I claim:

1. A road machine comprising runners, downwardly and rearwardly inclined links disposed adjacent the front and rear ends of the runners and pivoted at their front upper ends upon the inner sides of the runners, a scarifier frame including side bars disposed adjacent and parallel to the respective runners and pivoted to the lower ends of the links, series of scarifier teeth carried by said frame, means carried by the runners and connected with the front and rear ends of the frame for raising and lowering the frame, and a drag carried by the rear ends of the runners and arranged transversely thereto.

2 A road machine comprising runners, a scarifier frame hung upon and between the runners, said frame consisting of longitudinal and trans-'- verse channel bars and a reversed channel bar secured in the front transverse channel bar, longitudinal bars disposed'adjacent the respective runners, scarifier teeth carried by the transverse bars, and means on the runners for raising and lowering the scarifier frame.

3. A road machine comprising runners, a scarifier frame carried by and between the runners, a rock shaft mounted on the rear ends of the runners, means for setting said shaft, rearwardly projecting plates secured to said shaft, leaf springs secured at their front ends to said plates and extending downwardly and rearwardly therefrom, and a drag secured to the rear ends of the springs.

OMER F. CHURCH. [L.S.]