US2192254A - Roadway smoother - Google Patents

Description

March 1940- J. J. BEADLE ROADWAY SMOOTHER Filed July 11, 1938 Patented Mar. 5, 1940 ROADWAY SMOOTHER John J. Beadle, Corydon, Iowa, assignor of onehalf to- Frank Coates, Corydon, Iowa Application July 11, 1938, Serial N0. 218,523

3 Claims.

? ing depressions, and the oiled gravel surface is quite hard and unyielding and, therefore, difficult to smooth out.

.JI'he object of my invention is to provide a roadway smoother of simple and inexpensive con- 1 struction which may be advanced by the usual tractors now in general use for roadway work.

More specifically, it is my object to provide a cutter blade to be advanced over a roadway to be smoothed and which is designed and shaped to engage only the top portions of the hills and cut them .off, which obviously may be accomplished with a relatively small amount of tractive power, and to connect this cutter blade with a trowelingv blade for scraping the roadway material loosened by the cutting blade, into the roadway depressions and pressing same into bonding contact with the roadway and applying thereto a-troweling operation forcompacting and smoothing the road material so that it will shed rain, and further to operatively'connect the two blades so that the troweling blade resting upon the roadway will support the cutting blade associated therewith at the proper elevation from the roadway surface for cutting off the tops only of the roadway hills and to prevent the cutter blade from penetrating deeply into the roadway and thereby loosening the tightly packed roadway material below the normal roadway level, and to provide means conveniently adjustable by the operator for tilting the troweling blade so that it will support the cutter blade at any desired elevation from the roadway without in any way affecting the normal operation and functioning of the troweling blade.

In the accompanying drawing- Figure 1 shows a top or plan view of a roadway scraper embodying my invention;

Figure 2 shows a side elevation of a portion of the same on an enlarged scale; 7

Figure 3 shows a top or plan view of the troweling and cutting blades;

Figure 4 shows an enlarged detail view showing a vertical section ofthe combined cutting blade and troweling blade, and illustrating a portion of a roadway and the condition of same before and after the implement has passed over it;

Figure 5 shows a side elevation of a modified form of my invention.

Referring to the accompanying drawing I have used the reference numeral H] to indicate generally the frame of a roadworking vehicle mounted upon wheels I l. The blade-supporting frame member I2 is pivoted to the main frame at its forward end and is supported upon the main frame by a link l3 connected to a crank i l so that when the crank is turned, the blade-supporting frame I2 maybe moved to an elevated position for transportation.

Fixed to the frame member l2 are two downwardly extended beams l5 for supporting the cutting and troweling blades. The troweling blade comprises a blade member 16 having at its rear end 'portion on the top' of the blade a beam if provided with lugs 18, and the beams [5 are pivotallymoun-ted to these lugs l8. The body of the blade is extended substantially transversely of the machine, as shown in Figure 1, and the forward edge of the blade is positioned above theroadway surface and extends downwardly and rearwardly and then slightly upwardly at its rear end, as shown in Figure 4. Fixed to the forward edge of the troweling blade I6 is a cutting blade !9. This cutting blade stands in a substantially upright position, as shown in Figure 2, and its lower edge projects-below the front edge of the troweling blade.

For the purpose of. adjusting the blades relative to the frame I21 havev provided rods 2f!v pivoted to the troweling blade and extended-upwardly through lugs 2| carried by the frame l2,

and nuts 22 are mounted on the rods above and below the lugs 2| so that the front end of the troweling blade may be vertically adjusted relative to the frame, and securely held and locked in this position. i

In the modified form shown in Figure 5 I have used the reference numeral 23 to indicate the cutting blade which is fixedly directly to the upright beams 24 carried by the frame 12, and the troweling blade which I have indicated generally by the numeral 25 is pivotally connected at its forward edge to the cutting blade. The rods 28 and 21 are pivotally connected to the beam 24 and the rear portion of the troweling blade, and a turnbuckle 28 is mounted upon the rods 28 and 21 for adjusting the position of the I first move the troweling blade to position resting upon the surface of the roadway. I then adjust the cutter blade by tilting the troweling blade to a position where the cutting blade will engage only the tops of the so-called hills of the roadway. When in this position the implement may be advancedover the roadway with the minimum of tractive power because the cutter blade is required to simply shaveoff the tops I of said hill portions. As this is being done the portions of the roadway which are thus removed are engaged by the troweling blade and pressed into the depressions and also. smoothed in the manner of a troweling operation. This movement of the implement over the roadway is re-. peated, and each time the cutter blade is adjusted downwardly so that it cuts off the next adjacent portions of the hill tops, and after a few operations the amount of material removed from raised portions of the roadway will have been carried into the depressed portions of the roadway and troweled in such position, and when thus troweled, the oiled gravel will present a smooth moisture-resistant surface in which the rain will not pentrate to any appreciable extent, so that after the operation of my implement has been completed the roadway is left in perfect condition. l I

One of the principal advantages of my improvement is, that the cutting blade is positively prevented, under all circumstances, from penetrating deeply into the roadway material; hence, after the operation has been completed with my implement the roadway has not been cut into or torn up into large sized chunks as is the case where implements of this kind are used wherethe cutting blade-may penetrate deeply. Obviously, the same adjustment of the cutter blade relative to the' troweling blade may be eflected by the modified forms shown in Figure 5. l

' I have found in practice that the troweling blade works effectively and satisfactorily with its lower edge curved in the manner shown in the drawing, but I have also found that a straight troweling blade can be utilized and will do satisfactory work.

I also find in practical use that by having a 'member like my improved troweling blade, or

some other road-engaging member, the cutter blade may be adjusted, relative thereto, or one may be adjusted relative to the other in such a manner as to effectively cut off only the tops of the hill portions of the roadway, and not cut deeply into the roadway and I, therefore, do not wish to be understood as limiting the use of my invention to the particular form of troweling blade shown.

I claim as myinvention: l. A roadway smoothing implement comprising a vehicle, aroadway troweling blade pivotally supported bythe vehicle and extended transthe forward edge of the troweling blade, andmeansfor adjustably fixingi'the troweling blade in various positions of its pivotal movement relative to the vehicle.

2. A roadway smoothing implement comprising a ,yehicle, a roadway troweling blade pivotally supported by the vehicle and extended transversely thereof and being inclined downwardly and rearwardlyfrom its front edge, a cutter blade j fixed to the forward edge of the troweling blade in a substantially upright position with its lower 7 edge below the forward edge of the troweling blade, and means for adjustably fixing the troweling blade in various positions 'of its pivotal movement relative to the vehicle.

3. A roadway smoothing implement comprising a Vehicle, a roadway troweling blade pivotally supported by the vehicle and extended'transverse ly thereof and being inclined downwardly and '7 rearwardly from its front e'dge,=a cutterb-lade attached to the forward edge of the troweling blade in a substantially upright position withits lower edge below the forward edge of the troweltroweling blade in various positions of its pivota movement relative to the vehicle.

JOHN J. BEADLE.

15 versely thereof and being curved on its under surface downwardly and rearwardly from: its

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