US2357374A - Surface-working machine - Google Patents

Description

P 1944 M. s. ARIENS 2,

SURFACE-WORKING MACHINE Filed May 20, 1940 2 Sheets-Sheet l 60 Inventor- Mfifirxen:

Flt-turnegs Sept. 5, 1944. M. s. ARIENS} SURFACE-WORKING MACHINE Filed May 20, 194;

2 Sheets-Sheet 2 Inventnr M.':'|.Fl 1- 1 Ens Fittnr'negi Patented Sept. 5, 1944 UNITED-STATES ATENT OFFICE SURFACE-WORKING MACHINE Mando Ariens, Brillion, Wis. Application May'20, 1940, Serial No. 336,207

1 Claim.

This invention appertains to a surface-working machine of the general character shown in my Patent 2,025,494, issued to me December 24, 1935, and in my'pending' application Serial No. 298,639, filed October 9, 1939.

One of the primary objects of my present inventionis to provide a machine particularly useful in road construction Work for facilitating and insuring the proper pulverizing'and mixingof various types of aggregates laid directly on a road surface. v a

It is well recognized by'road builders that the better the road material is pulverized, mixed, and "aerated with bituminous oils, cements, or whatever binder is used, the smoother, the more compact and stabilized the road will be. Great difiiculty is experienced in properly mixing and pulverizing the aggregates directly on the roadbed'during the surfacing of the road.

Therefore, another salient object of my invention is to provide a machine for use mixed-in-place road construction, whichwill rapidly work and pulverizethe aggregates and mix the various materials together and insure the smooth, even distribution of the materials over the roadway.

'A further object of my invention is the provision of a, mobile machine having a'rapidly rotating, transversely disposed shaft carrying a;

plurality of pivoted hammers for operating against the material to be mixed, the action of the rotating, swinging hammers being such as to bring about the fast pulverizing and working of the road materials,

A further important object of my invention is the provision of an adjustable scraper and leveler blade havingan upper top face over which the road-surfacing materials ride, and a plu-'.

rality of rapidly rotating, swinging hammers for acting upon the material as the same passes over,

the blade, whereby the material will be pulverized and mixed by the action of the hammers against the blade.

A still further object of my invention is the provision of novel means for detachably mounting the hammers on the shaft, ,whereby the hammers can be readily and quickly replaced when worn or broken. I With these and otherrobjects in view, the invention consists in the novel construction, arrangementand formation of parts, as will be hereinafter more specifically described, claimed, and illustrated in the accompanying drawings, in which drawings:

Figure 1 is a front elevational view of my improved road-surfacing machine, showing parts thereof broken away and in section to illustrate structural details. a l Figure 2 is a side elevational view of my machine. i g

Figure 3 is an enlarged, fragmentary, detail, sectional view illustrating the constructionof the swinging hammers and the means for mounting the same upon the rotating shaft.

Figure 4 is a transverse, sectional view through the machine, taken on the line 4-4 of Figure'l,

- and strongly constructed from steel or like plates of the desired gauge rigidly welded or otherwise secured together. The casing forms the main frame of the machine, and, hence, the casing is braced at various points by longitudinally and transversely extending 'boxlike girders' Briefly, the longitudinally extending casing or housing 5 includes side plates 6, a connecting top wall or plate 1', and a dependin front plate or wall 8.

The side or end Walls 6 carry bearings 9 for the transversely extending shaft l0, which is freely rotatably mounted therein. The purpose of this shaft will be later described.

The frame of the machine is supported by independently adjustable ground wheels II and I2,"

and these wheels can be provided with pneumatic tires l3 of the tractor type. The wheels are rotatably mounted on short stub shafts l4 carried by swinging U-shaped wheel supports I 5.j

The forward ends of the U-shaped wheel supports I 5 are rockably mounted, as at IS, on hangers l1 rigidly connected with the frame or casing 5. 4

i The upper ends of the hangers have pivotally I connected thereto cylinders I8, and mounted in the cylinders for reciprocatory movement are pistons 19. These pistons are, inturn, pivotallyv connected to attaching brackets 20 welded or otherwise connected'to the swinging wheel sup- I ports l5.

Means is provided for wherebythe wheels ,H and I2 can be independently adiusted. Thus; the frame or casing 5 independently controlling the fluid to and from the cylinderslB,

can be raised and lowered relative to the ground, and can also be tilted at any desired angle transversely of the roadway.

One of the important features of my invention is the provision of means whereby the frame can be adjusted or set accurately to any desired position relative to the ground. In employing the hydraulic mean for raising and lowering the frame, the frame lowers relatively fast, and, hence, accurate adjustment cannot be had.

The means for holding the frame in an adjusted position includes angle brackets l8, and these brackets are adjustably bolted to the side plates 6. As illustrated, the side plates 6 are provided with an arcuate row of bolt-receiving openings, and bolts l9 can be extended through the brackets and into selected openings of the row of openings. The lower ends of the angle brackets l8 carry adjustable stops 20', which can be in the nature of screws threaded into the brackets. The lower ends of the screws are disposed in the path of the U-shaped wheel supports l and act as abutments or stops therefor. Obviously, by adjusting the screws the downward swinging movement of the frame on the wheel supports can be accurately set.

During the use of the machine, the desired position of the frame relative to the ground is had by the initial adjustment of the brackets l8 and then the screws 20'. When the machine has traveled the desired distance down a roadway, the frame can be liftedby the hydraulic jacks, and the machine can be turned around. It is then merely necessary for the operator to release the fluid in the jacks, and the frame of the machine will lower until the screws abut the end brackets l5, and the frame and machine will again be disposed in the desired and correct position relative to the ground.

Disposed centrally on the housing or casing 5 is a depending gear housing 2|. This gear housing is rigidly connected to the casing and, in effect, forms a part of the frame. Extending into the gear housing 2! is a drive shaft 22, which is adapted to be driven from the power take-off of a tractor (not shown). The drive shaft 22 operates a countershaft 23 disposed in theupper end of the gear housing, and this countershaft drives a sprocket chain 24, which travels over a sprocket wheel keyed or otherwise secured to the operating shaft I0 heretofore mentioned.

Also disposed at the central portion of the machine and arranged transversely of the casing is a depending center U-shaped bracket 25, and'this bracket can have its lower and front edge sharpened, as at 26, for facilitating its passage through the road surface. Similar end U-shaped brackets 21 are provided, and all of these brackets 25 and 21 are adjustably secured by means of bolts 28 to frame plates and the like forming a part of the rigid casing frame 5. These brackets 25 tion, I am enabled to bring about the desired rapid pulverizing and mixing of the road mateand 21 support the scraper and leveling blade 29,

which extends longitudinally of the machine, but transversely of the roadway. The scraper and leveler blade has its opposite longitudinal edges sharpened, as at 30, so a to permit the'turning around of, the blade when one edge becomes worn.

The blade has rigidly connected thereto angle brackets 3!, and these angle brackets are con-- nected by pivot bolts 32 to the brackets 25 and 21. By means of the pivot bolts 32, the blade 29 can be swung to araised or lowered position, and in order to hold the blade in its desired adjusted position, the angle brackets 3| are provided with arcuate slots 33, through which extend clamping rials.

In carrying out this important feature of my invention, I provide duplicate pairs of semicircular hub plates 36, and these duplicate pairs of hub plates 36 are connected by clamping bolts 31, so that the hub plates will be rigidly, but detachably,'mounted upon the operating shaft [0. This shaft is also preferably of a hexagonal shape in cross section. Between the companion pairs of hub plate 36, I mountat spaced points on pivot pins 38 the hammers 39. Thus, the hammers are mounted for free swinging movement on the hub plates, and by referring to Figures 1 and 3, it will be noted that the swinging hammers in one group are staggeredly related to the hammers of another group. I also prefer to mount the pivot pins 38 in such a manner that the same can be quickly and easily removed from the hub plates, 50 that the hammers 39 can be conveniently removed from the machine when the same become worn or broken. Thus, the hammers can be quickly replaced without dismantling the entire machine. It is also to be noted that the heads 40 of the hammers extend across the shanks of the hammers and longitudinally of the shaft l9. While I have shown the hammers to be of a T-shape, it is to be understood that the hammers can take any desired form or configuration.

In use of my improved machine, the same is connected to a tractor in the desired manner,

and the shaft I!) is operated from the power takeoff of the tractor.

During the travel of the machine over the roadway, the blade 29 Will eifectively scrape and level the roadway, and'the surfacing material will flow over the top surface of the blade. During this traveling movement ofthe 'machine, the shaft Ill will be rotated at a high rate of speed, and, consequently, the hammers 39 will be thrown forcibly around the shaft and'down toward and against the material passing over the blade 29, and, hence, the hammers will effectively pulverize and mix the material as the same passes over the blade. I

By the use of my machine, Iam enabled to rapidly pulverize and mix road materials laidon a road surface in a convenient and expeditious manner.

From the foregoing descriptionit can be seen that I have provided a mobile machine which moves over a roadway andwhich pulverizes material during the travel of the same. Obviously,

themachine can be pulled over the roadway in,

Changes in details may be madewithout departing from the spirit or the scope of my invention, but what I claim as new is:

A mobile'machine for pulverizing and mixing material on the ground during the travel of the machine comprising, a frame, an intermediate and end U-shaped brackets carried by and depending from said frame, said intermediate bracket having a leading sharpened edge and a sharpened lower edge, a swinging scraping and 10 leveling blade mounted on the brackets, means

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