US1844693A - Snow removing device - Google Patents

Description

F ch. 9, 1932.

s. SEVERSON 1,844,693

SNOW REMOVING DEVICE Filed Aug. 27, 1951 7 3gsggets sheet 1 s7 E 30 55E YETEDJZ Feb. 9, 1932. s. SEVER-SON SNOW REMOVING DEVICE 3 Sheets-Sheet 3 j wW/ZW 5.55 1

EFEDJZ Patented Feb. 9, 1 932 SAMUEL SEVEBSON, OI VAIJJERS, WISCOIl'SIN snow nmrovme nnvron Application filed August 27, 1931. Serial No. 559,716.

This invention appertains to means for elliciently removing snow from country roadways, so as to effectively keep the roadways open to motor trafiic in thewinter season.

One of the primary objects of my invention is to provide a novel snow removing machine embodying rotary blades or impellers for engaging and throwing the snow on each side of the roadway and a considerable distance therefrom, so as to insure the proper removal of the snow and to prevent the drifting of the snow after its removal.

The general practice now in vogue of removing snow from highways, is by the use of plows pushed by motor trucks, tractors,

and the like. The use of a snow plow has many inherent disadvantages which I successfully overcome by the use of my device. With the ordinary type of push plow, the same forces its way through the snow and leaves a ridge on each side of the road, and these ridges increase in size each time the plow is pushed over a highway, so that in time, these ridges or banks become so large that it is practically impossible to get the plow through. The ridges or banks not only hinder the passage of the plow along the highway, but during stormy weather, and when the snow is drifting, the snow tends, to lodge between these banks or ridges and the higher the ridges or banks become, as a result of repeated plowing, the deeper the snow will lay between the ridges. Further, these ridges or banks area hazard to traflic, for they interfere with the View of a driver, often making it impossible for him to see'even a few feet ahead.

With the use of the push plow, the same does its work by crowding or pushing its way through the snow which makes the machine more liable to breakage in hard-going or in travelling up steep grades, as there is no way in which the operator can lighten the strain on the machine.

' It is, therefore,- another prime object of my invention to provide a machine of the rotary or throwing principle that will remove snow from country roads with as much or more speed than it can be done wi h the push plow,

and at the same time eliminate the disadvantages that are inseparable from the latter.

A further salient object of my invention is to provide an improved snow removin device, in which the same substantially eeds its waythrough the snow, "and eliminates the formation, to a great extent, of the ridges or banks at the sides of the road and in which the forward speed of the device can be lessened and the speed of the rotary snow im- 00 pellers increased in heavy going, so as to reduce the strain on the machine and thus eliminate the likelihood of breakage of the various arts and the stalling thereof in drifts.

A urther prime object of my invention is the provision of a snow removing machine embodying novel rotary snow impellers having buckets arranged on the front and rear faces thereto, the buckets on the front of the impeller, acting to directly engage and throw the snow to the side of the road, while the rear buckets act to engage and throw the snow to the side of the road which are outside of the radius of the buckets on the front of the impellers, novel means being provided for turning the snow outside of the radius of the front buckets into engagement with the rear buckets, whereby the machine enga es and acts on the show along the entire width of the machine.

A further important object of my invention is the provision of novel means for mounting the snow impellers on the supporting frame, with novel means for rotating the impellers on the supportin frame, the entire device being so constructe as to render the same capable of handling a large quantity of snow, together with speed of performance.

A still further object of my-invention is to provide an improved rotary snow removing device of the above character, which will be durable and efficient in use, one that will be simple and easy to manufacture and one which can be placed upon the market at a reasonable cost, and onewhich can be efli-' ciently used in any kind of snow; soft, hard, deep, or shallow. I

With these and other objects in view, the. invention consists in the novel construction, arrangement and formation of parts, as will iers;

cifically described, in the accompanybe hereinafter more s claimed and illustrate in drawings in which:

Figure 1 is a front elevation of the preferred form of my improved snow removin device;

Figure 2 is a plan new of thesame; Figure 3 is a vertical longitudinal section throu h the device, illustrating the novel constructlon of the rotary snow impeller;

Figure 4 is a bottom plan vlew of the same,

Figure 5 is a fragmentary detailed edge elevation of one of the rotary snow impel- Figure 6 is a front elevational view illustrating another form of my device;

Figure 7 is a longitudinal section through the same illustrating the type of rotary snow impeller used in the modified form;

Figure 8 is a horizontal section through the form of my invention shown in Figures 6 and 7 with the snow impellers and the associated parts removed.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts, my improved device embodies a supporting frame 10 which may consist of supporting side arms 11 and 12, which are of a strong and sturdy nature.

As shown, the supports 11 and 12 include rearwardly projecting upper and lower angle bars 13. At the point where the bars converge, the same can be provided with sleeves 14 for attachment to a motor truck, tractor,

While, as

or other appropriate vehicle. stated, my device is susceptible forassociation with any type of motor or other vehicle, but because of the fact that it is preferable to drive the snow impellers with a separate engine from the one that propels the truck, it is more convenient to provide a preferred manner of mounting, as will now be described.

There are now on the market several makes of motor trucks, which are so constructed that they can be driven backward or forward with the same facility, that is, they have heversible drivers position and controls. These trucks have as much power and speed and as many gear changes for going backward as forward, and the truck of this type is the ideal machine on which to mount my invention. By mounting my improved snow remover on the rear end of a truck of this type and driving the truck in the reversed osltion, the engine for driving the snow impellers may be mounted on the truck platform and connected directly to the drive shaft, as hereinafter pointed out, on my machine by a suitable shaft and universal joints, which makes a very ideal arrangement. Suitable apparatus for raising the improved snow removing device above the roadway, or lowering the same may also be mounted on the truck body at the most convenient point.

My invention, as shown, in the accompanying drawings is what might be termed a double unit machine, that is, it has two snow impellers arranged side by side, so that if for example, the diameter of each impeller were five feet, the machinewould be. capable of making a ten foot wide path through the snow, but machines of this same principle can be built in a single unit or with a single impeller for cutting a narrow path or four or more impellers may be used .side-by-side and in this way, the diameter of the impellers could be reduced so as to keep down the overall height of the machine and at the same time build the machine with any width of cut.

The diverging ends of the supporting an le bars 13 are securely bolted, riveted,

we ded, or otherwise secured to the front part of the snow removing device, which embodies a transversely extending arcuately curved mold board 15. This mold board 15 extends across the entire width of the ma chine and is provided with end walls 16 which can slightly incline inwardly toward their rear ends. The front edges of the end walls 16 are sharpened so as to facilitate the cutting of the device through snow. The lower edge of the arcuate mold board 15 is extended forwardly to provide outwardly projecting substantialy V-shaped cutting blades 17. As shown, the V-shapedcutting blades 17 have their forward leading edge sharpened to facilitate their cutting through the snow, and owin to the inclination of the cutting edges, a su tantially shearing cutting action will be had. As disclosed, there is one of the V-shaped cutting blades on each side of the machine and a rotary snow impeller 18 /is arranged above each of said cutting blades.

The rotary snow impellers 18 are mounted directly in front of the mold board 15, one on each side of the transverse axis of the mold board andeach of the same embodies a discshaped plate 19 having front buckets 20 secured to one face thereof, 'and the rear buckets 21 secured to the rear face thereof. The plates 19 at their axial centers can be provided with suitable hub sleeves 22 for receiving the operating shafts 23 and 24. These shafts extend rearwardly through the mold board and are rotatably supported in suitable bearing hangers 24' carried by the inner face of the mold board.

Any preferred means can be provided for securing the impellers to their shafts. The buckets 20 and 21 face in the same direction and have their leading edges sharpened as at 25, so as to facilitate their engagement with the snow and the cutting of the buckets through the snow.

I provide a substantially circular guard plate 26 for each of the snow impellers 18,

and these guard plates encircle the (periph cries of the impellers and are secure to the 9 blades or shares 17.

mold board 15 and their forwardly cutting These guards 26 have their ends spaced. to provide snow outlets or delivery mouths 27, at theopposite ends of the mold board and above the same. The top edge of the mold board carries guards or deflectors 28 which extend substantially tangentially to the upper ends of the guards 26,

and these deflectors also act as means for defining the snow outlets or delivery openings.

The front edges of the guards 26 extend slightly beyond the impellers 18 and have their front edges sharpened so as to form cutting members to facilitate their passage through the snow. Thus, the front edges of these guards serve as dividers, that is, they divide the snow that is to enter the front impeller buckets from that which is to be directed against the mold board 15 and turned up against the rear buckets 21, as will be later more fully set forth.

Extending forwardly of the guards 26 and the V-shaped cutting blades or shares 17 are arcuately substantially V-shaped plates 29 and these plates 29 likewise have their edges sharpened so as to provide cutting blades to act against the snow.

The front points of these cutting plates 29 are provided with runners 30, so as to prevent the catching of the points of the plates in projecting portions of the roadway.

The means provided for actuating the impellers comprises a common drive shaft 31 which is rotatably mounted in bearin bracka et 32, firmly secured to the top of t e mold board'15 in rear of the deflectors 28 by means of a supporting plate 32. This drive shaft 31 is provided with small sprocket wheels 33 and 34 which are keyed or otherwise secured to the said drive shaft. The rear ends of the operating shafts 23 and 24 are provided with sprocket wheels 35 and 36, respectively, as clearly shown in Figures 2 to f the drawings. An idler sprocket wheel 37 is carried by a suitable stub shaft mounted on the bearing bracket, as shown. A sprocket chain 38 is utilized for directly connecting the sprocket wheels 33 and 35 together, and a second sprocket chain 39 is provided for connecting the idler sprocket Wheel 37, and the sprocket wheel 36' together, one run of the sprocket chain being led over the sprocket Wheel 34. secured to the drive shaft 31. By this arrangement, the impellers are rotated in op posite directions relative to one another and in a direction to throw the snow upward of the opposite ends, of the machine through the snow discharge openings 27.

As previously described, the drive shaft 31 is driven from an engine carried by the propelling truck.

In operation of my improved snow removing device, the blades 17 and the plates 29 cut the snow from the roadway and direct the snow back against the, arcuate face of the machine advances,

the sharpened edges 25 of the front buckets 20 of the impellers, cut

away the snow and forcibly carry and throw the snow out of the snow discharge opening 27. The snow that is outside of the radius 0 the front buckets 25 is carried back against the mold board 15 as heretofore sug ested, and the arcuate face'of the mold board turns this snow forwardly against the rear buckets 21. Thesebuckets engage and cut this snow and throw the same out of the discharge open-' lngs.

I lay particular stress on the use of the front and rear impeller buckets and the means for directing snow against the rear impeller buckets, as by this construction, I am enabled to effectively engage all of the snow throughout substantially the width of the snow removing device.

This is particularly desirable and essential in rotary snow plows.

In Figures 6 to 8 inclusive, I have illustrated another form of my invention and this machine also embodies supporting beams which are similar to the supports 11 and 12,

illustrated in the preferred form and these supporting beams can be connected to the propelling truck or tractor in the same manner as in the preferred form.

The front ends of the supporting beams 50 are rigidly secured to the front snow engagmg part of my device which embodies a back wall 51 having formed thereon, or secured thereto, the forwardly extending side walls 52. The front edges of these side walls can be sharpened, so as to facilitate the cutting of their way throughthe snow. Formed on or secured to the backwall 50 is the forwardly projecting bottom wall 53, which carries the forwardly extending 'V-sliaped, cutting blades 54, the inclined edges of which are sharpened so as to cut the snow from the roadway. -Arranged in front of the back wall 51 are the substantially circular guard plates 54 for the rotary impellers, which will be more fully described. A top wall 55 can be provided and this top wall is provided with flared deflectors 56 which extend substantially tangentially to the circular guards 54, it being noted that the spaced ends of the guards 54 and the deflectors 56 form the snow discharge openings.

Projecting forwardly of'the lower edges of the guards 54 are V-shaped arcuate cutting plates 57 and these plates have their edges sharpened so as to cut the snow from the roadway.

Rotatably mounted in suitable bearing brackets 58 on each side of the machine are the operating shafts 5'9 and 60, andthesc shafts are disposed substantially at the axial centers of the guard plates 54. The shafts extend through the back wall 51 and have and rear rotary snow. impellers 64 and 65.,

keyed or otherwise secured thereto, thesprocket, wheels 61 and 62, respectively.

Each of the shafts59 and 60 carry front Each of the impellers 64 and 65 embodies a disc-shapedbody plate 66, and radially snow engaging buckets 67, the edges of which are sharpened to facilitate their passage through the snow. -In this form of my invention, it is.

. An idler sprocket 72 is rotatably carried by the rear face of the back wall 51. A sprocket chain is provided for directly connecting the sprocket wheel 61 and one sprocket wheel 71 together, while a second sprocket chain is way, and as the machine advances, the frontprovided for connecting the sprocket wheels 62 and 72 together, one run of this chain being placed in engagement with the other sprocket wheel 71. The shaft 70 is dr ven from the propelling vehicle in any desired way and due to the connection of the drive shaft, with the operating shafts 59 and 60, these shafts may be driven in opposite directions, so that the snow engaged by the front and rear impellers 64 and 65 will be thrown laterally from the machine.

In this form of the invention, the same is driven through the snow in the same manner as the first form and the V-shapedcutting blades 54 and the V-shapedcutting plates 57 will cut the snow loose from the roadimpeller will engage the same and throw the snow laterally of the machine through the snow discharge openings. The snow outside of the radius of the front impellers will enter the machine in back of the propellers and will be directed into engagement with the rear impellers 65 which will throw this snow through the discharge openings.

From the foregoing description, it can be seen that I have provided a snow removing device that is capable of handling a large quantity of snow, together with the greatest possible speed of performance, and it is apparent that the entire front of the machine consists of the most formidable working surface which acts u on the snow in the most direct way as possi le.

' The greater part of the snow is engaged directly by the front of the impellers and What is not taken up directly, is picked up and thrown against the rear impellers and disposed of in the same eflicient manner.

Changes in details may be made without 3. A snow'removing machine comprising a transversely extending mold board of arcuate shape in cross section, forwardly extending V-shaped cutting blades carried by the moldboard, and rotary snow impellers arranged in front of the mold board including front and rear buckets.

4, A snow removing machine comprising 'a mold board, forwardly extending snow cutting blades carried by the mold board, substantially circular guards arranged in advance of the mold board having their ends spaced to provide discharge openings, rotary snow impellers disposed within the guards, provided with front and rear snow engaging buckets.

5. A snow removing machine comprising a mold boardfforwardly extending snow cutting blades carried by the mold board, substantially circular guards arranged in advance of the mold board having their ends spaced to provide discharge openings, rotary snow impellers disposed within the guards, provided with front and rear snow engaging uckets, the front edges of the guards being sharpened.

6. A snow removing device comprising a mold board, forwardly projecting V-shaped blades having their inclined faces sharpened carried by the mold board, forwardly directed side walls secured to the mold board and having their leading edges sharpened, circular guards arranged above the cutting blades and in advance of the mold board having front and rear impeller buckets, the buckets being provided with cutting edges, the ends of the guards being spaced to provide snow discharge openings and tangentially extending deflectors connected with the guards defining in connection therewith the discharge openings.

7. A snow removing device comprising a transversely extending mold board, forward- 1y extending sharpened cutting blades carried by the lower edge of the mold board, ro-' tary snow impellers arranged above the cut ting blades and each side of the transverse center of the mold board, each of the impellers having front and rear buckets, and means for rotating the impellers in opposite direction to throw the snow out of the opposite ends of the machine.

8. Asnow removing device comprising supporting beams, a transversely extending mo (1 board secured to the supporting beams of an arouate shape in cross section, rotar snow impellers arranged in front of the mol board, including front and rear oppositely disposed snow engaging buckets, said buckets having their leadin edges sharpened, forwardly extending V-s aped snow cutting blades carried by the lower end of the mold board, circular guards enclosing the rotary impellers having the ends thereof spaced to define discharge openings, snow deflectors extending tangentially'to the guards defining in connection therewith the discharge openings, forwardly extending V-shaped plates carried by the lower ends of the guards, means for rotating the impellers, the front buckets of the impellers cutting directly on the snow, the snow outside of the radius of the front buckets being received in the mold board and turned by said mold board into engagement with the rear buckets.

9. A snow removing device comprising supporting beams, a snow engaging device including a back plate and forwardly projecting bottom side and topplates, the bottom plate being provided with V-shaped cutting blades, the sides being provided with cutting edges, circular guards provided with forward cutting edges arranged above the cutting blades, an operatin shaft arranged axially within each guard, t e guard being provided with a discharge opening, means for rotating the shaft, and front and rear snow impellers secured to the operating shaft. 7

10. A snow removing device comprising supporting. arms, a front engagin member secured to the beams including a ack wall and forwardly projecting side, top and bottom walls, forwardly projecting V-shapedcutting blades carried by the bottom wall, circular guards arranged above the cutting blades on each side of the transverse center of the machine, operating shafts extending axially into the guards, front and rear snow impelling wheels secured to the operating shafts, the guards having their ends spaced to provide discharge openings, deflectors carried by the top wall extending means for rotating the operating s afts in opposite directions, ber arranged between the guards.

'11. A snow removing device comprising supportmg arms, a front engagin secured to the beams including a back wall and forwardly projecting side, top and bottom walls, forwardly projecting V-shaped cutting blades carried b the bottom wall, circular guards arranged above the cutting blades on each side of the transverse center of the machine, operating shafts extending axially into the guards, front and rear snow imfrom said 0 enings,

polling wheels secured to the operating shafts, the guards having their ends spaced to rovide discharge openings, deflectors carrie by the top wall extending from said openings, means for rotating the operatin shafts in opposite directions, and a snow ividing member arranged between the guards, the forward edges of the side walls and guards being sharpened to cut through the snow being enga ed.

n testimony that I claim the foregoing I have hereunto set my hand at Chilton, in

the county of Calumet and State of Wiscon- S111.

SAMUEL SEVERSON.

and a snow dividing memmember

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