US2911736A

US2911736A - Snow removal implement

Info

Publication number: US2911736A
Application number: US730307A
Authority: US
Inventors: Homer H Jewett
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-04-23
Filing date: 1958-04-23
Publication date: 1959-11-10
Anticipated expiration: 1976-11-10

Description

1959 H. H. JEWETT snow REMOVAL IMPLEMENT 2 SheetsSh,eet 1 Filed April 23, 1958 ,fl'nveniow Women H. Jzwel'l W'ihwss Nov. 10, 19 59 H. H. JEWETT 2,911,736

snow REMOVAL IMPLEMENT Filed April 23, 1958 2 Sheets-Sheet -2 Amumrot' Homev H. Jew an United States Patent SNOW REMOVAL IMPLEMENT Homer H. Jewett, Des Moines, Iowa Application April 23, 1958, Serial No. 730,307

9 Claims. (Cl. 37-45) This invention relates to a snow removal implement and more particularly to. one that is capable of securing the snow and casting it to one side thereof.

One of the most difficult tasks during the winter months is shoveling snow from driveways and sidewalks. Some effort has been made to facilitate this snow removal, but generally such devices are motorized, complicated, costly, and highly ineflicient.

Therefore, one of the principal objects of my invention is to provide a snow removal implement that is of simplified construction.

A further object of this invention is to provide an efiicientsnow removal device that is easily operated.

A still further object of this invention is to provide a snow removal machine that uses a single rotatable belt.

Still further objects of my invention are to provide a snow removal device that is economical in manufacture, durable in use and refined in appearance.

These and other objects will be apparent to those skilled in the art.

My invention consists in the construction, arrangements, and combination, of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, specifically pointed out in my claims, and illustrated in the accompanying drawings, in which:

Fig. l is a top plan view of my snow removal device,

Fig. 2 is a curved longitudinal sectional view of the belt portion and is taken on line 2 2 of Fig. 1,

Fig. 3 is an enlarged sectional view of one end portion of the lower belt roller taken on line 33 of Fig. 1,

Fig. 4 is a side sectional view of the device, and

Fig. 5 is a rear view of the snow removal implement and more fully illustrates its construction.

In these drawings I have used the numeral to generally designate the chassis frame of the device. This frame has its rear portion supported by the two wheels 11 and 12. These two wheels are geared traction wheels similar to the two geared wheels commonly found on hand pushed reel type lawn mowers and also have the usual geared shaft 13 extending between them, as shown in Fig. 5. The numeral 14 designates handle bars extending rearwardly and upwardly from the chassis 10. The

numeral 15 designates a sheet bed extending forwardly and downwardly as shown in Fig. 2. The numeral 16 designates a longitudinalcurved vertical Wall on the left side top area of the bed 15. This curved wall has its concave side extending to the right. The numeral 17 designates a second longitudinally curved vertical wall on theright side top area of the bed 15. This second wall 17 also has its concave side extending to the right. It is spaced apart from and parallel with the wall 16 and is of a longitudinal length much less than that of the wall 16, as shown in Fig. 1. Both walls extend rearwardly from the front end of the bed 15, and due to their curvature to the right their rearends extend laterally and to the right relative to the longitudinal axis of the are of, the wall 16, the curvature of the wall .17 be substantially more pronounced as shown in Fig. 1. The space between the forward ends of the walls will be transverse of the length of the device while the space between the rear ends of the walls will be substantially parallel with the longitudinal length of the device. Directly forward of the straight front edge of the bed 15 is a rotatably mounted shaft 18 carrying a-plurality of small roller wheels 19. These roller wheels are separated from each other by washers 20 and which are of a diameter less than that of the rollers, as shown in Fig. 3.

Directly at the back right edge of the bed 15 is a rotatably mounted shaft 21. The numeral 22 designates. an I elongated cone rollerrigidly secured on the shaft 21 and extending between the rear ends of the

walls

16 and 17. This cone roller has its smaller end extending forwardly. The numeral 23 designates a flexible endless belt embracing the rollers 19 and the cone shaped roller 22. The upper part of the belt is supported by the bed 15. When viewed from the top the belt curves rearwardly and to the right, i.e., its forward end extends transversely of the direction of travel of the device and its rear end extends substantially longitudinally of the device, as shown in Fig. 1. Thus, the belt forms a curved segment of a circle and its right side edge is of a length substantially less than that of :the length of its left side. The rotation of such a belt is made possible by the shape of the cone roller 22. The upper portion of the belt rotates between the wall 16 and the wall 17.

The cone roller 22 is of a height substantially above that of the front rollers 19 and therefore the belt extends in a curved path rearwardly and upwardly to the right.=

The numeral 24 designates a shaft rotatably mounted below the shaft 21. The numeral 25 designates a second cone roller rigidly secured on the shaft 24 and directly below the cone roller 22. This cone roller 25 has its tapered end extending forwardly and engages the outside of the belt 23 directly below the cone roller 22. By this arrangement the two cone rollers 22 and25 engage the inner and outer sides of the belt 23, respectively, and by frictionally engaging the belt 23 will pull and rotate the belt between the two rollers, similar to that of a roller type clothes wringer. The numeral 26 designates a spur gear rigidly secured on the shaft 21. The numeral 27 designates a spur gear rigidly secured on the shaft 24 and in. mesh with the spur gear 26. 'The numeral 28 designates .a shaft rotatably mounted on the frame 10. The numeral 29 designates a pulley wheel rigidly secured implement. Inasmuch as the wall 17 curves inside the pulley wheel rigidly secured on the shaft 28. The numeral 31 designates a pulley rwheel rigidly secured on the shaft 21. The numeral 32 designates an endless belt embracing the

pulley wheels

29 and 31. The numeral 33 designates a pulley wheel rigidly secured on the drive shaft 13. The pulley wheel 30 and the pulley wheel 33 are embraced by the drive belt 34.

The numeral 35 designates a snow direction and scraping bar on the frame 10. This bar 35 is closely adjacent the rear right side of the belt 23 as it extends around I the cone roller 22. The width of this bar 35 extends downwardly and outwardly to the right as shown in Fig. 5. Preceding the forward .end of the belt 23 is a narrow sharpened scoop bar 36, as shownin Fig. 2;

The practical operation of the device is as follows:

The device is pushed forwardly and any snow encountered will be raised by the scoop bar .36 upwardly and onto the top of the belt 23. The movement of the implement will rotate-the wheels 11 and 12 which in turn will rotate the drive shaft 13. The belt 34 extending fromthe shaft 13 to the shaft 28 will cause the two pul:

ley wheels

29 and 30 to rotate, which in turn by virtue Patented Nov; 1 10, J 1959 of the belt- 32 will rotate the spur gear 27. Inasmuch as the spur gear.27 is in mesh with the spur gear 26, the cone rollers 22 and 25 will rotate as shown by arrows in Fig. 2, thereby rotating the belt 23. With the belt 23 rotating, the snow will be carried rearwardly, upwardly," and to the right. Due to the gearing of the device as shown the belt 23 will be rotating relatively rapidly, thus casting and throwingrthe snow to the right. Also, due to the arcuate construction of the belt 23, the snow closest to the wall 16 will be moving more rapidly than the snow that is closer to the wall 17. This means that centrifugal force will also be involved in the casting of the snow from the machine. The

walls

16 and 17 will aid in retaining the belt in its orbit and also serve to hold the snow on the top of the belt until it is cast to the right and out the side of the moving implement. Obviously, the path of the implement will be cleared of objectionable sriow. By the shape of the belt 23, not only is the snow successfully and easily thrown to the right with considerable force, but only one belt is necessary to pick up the snow, change its direction relative to the implement, and cast is to the side. The bar '35 not only directs the casting of the snow but acts as a scraper to remove any snow and thus prevent the snow or like from clinging to the belt and passing between the two rollers 22 and 25.

Although I have described my device as one deriving its operating power from traction wheels 11 and 12, obviously if desired a motor or engine may be employed to rotate the

shafts

21 and 24.

Inasmuch as the longer side edge of the belt will travel at a speed greater than that if its shorter side edge, a straight one-piece roller at the forward end of the machine will not operate. It is for this reason that I use a plurality of rollers 19, rotatably mounted on the shaft 18 which may or may not be rotatably mounted on the frame 10. By this arrangement the rollers 19 at the left will revolve at a speed of rotation greater than the rollers 19 at the right, thus compensating for the shape of the belt 23. At point of discharge the rear top area of the belt 23 will be at an elevation above its forward top point of discharge. Therefore, the belt will proceed spirally from its end adjacent the rollers 19, rearwardly, upwardly, laterally, and with its width twisted to extend forwardly and downwardly at its discharge area.

Some changes may be made in the construction and arrangement of my snow removal implement without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims, any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.

I claim: a

1. In a snow remover, a frame, wheels for supporting said frame, a rotatably mounted roller means on the forward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially less than its other side edge and embracing said first mentioned roller means and said cone shaped roller means, and a means for rotating at least one of said roller means.

. 2. In a snow remover, a frame, wheels for supporting said frame, a rotatably mounted roller means on the forward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially less than its other side edge and embracing 4 i said roller means; said cone shaped roller means operating above the horizontal plane of said first mentioned roller means. i

3. In a snow remover, a frame, wheels for supporting said frame, a rotatably mounted roller means on the forward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially lessthan its other side edge and embracing said first mentioned roller means and said cone shaped roller means, and a means operatively connected to at least one of the wheels on said frame and said cone shaped roller means for rotating said rotatably mounted cone shaped roller means.

4. In a snow remover, a frame, wheels for supporting said frame, a rotatably mounted roller means on the forward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially less than its other side edge and embracing said first mentioned roller means and said cone shaped roller means, a second cone shaped roller means rotatably mounted on the side portion of said frame, directly below said first mentioned cone shaped roller means and engaging the outer side of said belt, and a means for rotating at least one of said cone shaped roller means.

5. In a snow remover, a frame, wheels for supporting said frame, a rotatably mounted roller means on the forward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially less than its other edge and embracing said first mentioned roller means and said cone shaped roller means, a means for rotating at least one of said roller means; said cone shaped roller means operating above the horizontal plane of said first mentioned roller means, a vertical wall on said frame at one side edge of the upper portion of said belt, and a vertical wall on said frame at the other side edge of the upper portion of said belt.

6. In a snow remover, a frame, wheels for supporting said frame, a rotatably mounted roller means on the forward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially less than its other side edge and embracing said first mentioned roller means and said cone shaped roller means, a means for rotating at least one of said roller means; said cone shaped roller means operating above the horizontal plane of said first mentioned roller means, a longitudinally curved vertical wall on said frame at one side edge of the upper portion of'said belt, and a longitudinally curved vertical wall on said frame at the other side edge of the upper portion of said belt. 7

7. In a snow remover, a frame, wheels for supporting said frame, a rotatablymounted roller means on the forward end portion of said'frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially less than its other side edge and embracing said first mentioned roller means and said cone shaped roller means, a means for rotating at least one of said roller said first mentioned roller means and said cone shaped I means; said cone shaped roller means operating above the horizontal plane of said first mentioned roller mean's,

and a shovel bar on said frame directly forward of said first mentioned roller means. 7

8. In a snow remover, a frame, Wheels for supporting said frame, a rotatably mounted roller means on the forward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantially less than its other side edge and embracing said first mentioned roller means and said cone shaped roller means, a means for rotating at least one of said roller means; said cone shaped roller means operating above the horizontal plane of said first mentioned roller means, a scraper bar on said frame adjacent said cone shaped roller means, and a shovel bar on said frame directly forward of said first mentioned roller means.

9. In a snow remover, a frame, Wheels for supporting said frame, a rotatably mounted roller means on the for- Ward end portion of said frame extending transversely of the longitudinal axis of said frame, a cone shaped roller means rotatably mounted on the side portion of said frame and positioned at an angle to said first roller means, an endless belt having one side edge of a length substantiaily less than its other side edge and embracing said first mentioned roller means and said cone shaped roller means, a second cone shaped roller means rotatably mounted on the side portion of said frame, directly below said first mentioned cone shaped roller means and engagthe ou-Ler side of said belt, and a means for rotating both of said cone shaped roller means.

References Cited in the file of this patent UNITED STATES PATENTS 35,074 Boyden Apr. 29, 1862 262,535 Craig Aug. 8, 1882 1,071,494 Wylie Aug. 26, 1913 2,794,272 Hegerland June 4, 1937