US1550948A - Grade cleaner - Google Patents

Description

Aug. 25, 192s. 1,550,948

A. J. CLAUSEN GRADE CLEANER l Filed March 2o, 1924 2 sheets-sheet 1 i wt/,

3 l 23 umm@ Aug. 25,` 1925. 1,550,948 A. J. cLAusEN GRADE CLEANER Filed March 20. 1924 2 Sheets-Sheet 2 lll Patented Aug. `25, 1925.

UNITED STATES PATENT OFFICE.

ANDREW JAMES CLAUSEN, 0F SAN FRANCISCO, CALIFORNIA, ASSIGNOR 0F ONE-HALF T0 V. L, MARCHAL, OF OAKLAND, CALIFORNIA.

To all whom t may concern:

Be it known that I, ANDREW J AMns CLAU- snN, a citizen of the United States, and a resident of San Francisco, county of San Francisco, State of California, have invented a new and useful Grade Cleaner, of which the following is a specification.

The present invention relates to improvements in vgrading implements for highways and has particular reference to a grade cleaner adapted to be used in combination with a road bed grading implement commonly known as a sub-grader. The latter implement is used to cut down a previously prepared roadbed to the exact grade desired and comprises in its principal features a large frame coinciding in width substantially with the width of the roadbed and supported on small wheels adapted to ride on two header boards disposed on the sides of the road bed. The connection between the wheels and the frame can be adjusted so that the frame can be lowered stepwise relative to the wheels and that blades depending from the frame will cut the grade down to the eXact point desired. The blades in this instrument lmofwn asf the sub-grader are usually arranged in slanting relation so as to leave windrows of tailings which latter at the present time are usually removed from the roadbed by means of shovels or horse propelled scrapers. In the present invention it is pro-posed to provide a grade cleaner in connection with this sub-grader that is made to trail the sub-grader to pick up the tailings, to lift the same to a certain elevation and dump them on a chute, the lower end of which extends over the header board so that the tailings are delivered to a place outside of the roadbed. Further objects and advantages of my device will appear as the specification proceeds.

The preferred form of the invention is illustrated in the accompanying drawing in which Figure 1 shows a top plan view of the right half of a sub-grader with my grade cleaner attached thereto, it being understood that the arrangement on the left hand side is similar to that on the right hand side, Figure 2 a rear view of my grade cleaner, Figure 3 an inside View of a left hand elevating wheel forming the main part of my grade cleaner and Figure f1 a vertical section through the same taken along line L1--4 of Figure While I have shown only GRADE CLEANER.

Application filed March 20, 1924. Serial No. 700,596.

the preferred form of the invention it should be understood that various changes or modifications may be made 'within the scope of the claims hereto attached without departing from the spirit of the invention.

The sub-grader (1) comprises a frame consisting of transverse members (2) substantially coextensive with the width of the roadbed and longitudinal angle irons (3) secured to the top thereof. The frame is supported by means of the adjustable arrangement (4) on the wheels (6) which latter are adapted to ride on the header boards (7) disposed on opposite sides of the grade. Blades (8) depend from the separator and engage the road surface for scraping the same to a certain depth and they are formed to leave the removed dirt or tailings arranged in windrows behind the sub-grader.

My grade cleaner is designed to pick up these tailings and to deliver the same outside of the header boards without disturbing the latter. It comprises in its main features a frame (9) preferably made substantially triangular in form and pivoted to the rear end of the subgrader frame on a horizontal axis as shown at (11). The rear end of the frame is supported by bearings (12) on the axle (18) of a large wheel (14), which latter is thereby caused to trail the sub-grader and which is positioned between two frame members (16) in such a manner as to run along side of and in close proximity to one of the header boards. It should be remembered that one of my grade cleaners is provided on either side of the roadbed to be graded. The frame (9) supports the mold board or blade (17) which latter is set at an angle to the direction of the roadbed and is arranged to move the dirt or tailings left behind the separator to the side of the roadbed and deliver the same to the large wheel (14) at the point where it contacts the roadbed, that is substantially perpendicularly under its axis. The mold board is preferably made in .two parts y(18) and (19), the former of which is supported on brackets (21) suspended from the frame (9) with freedom of vertical adjustment as shown at (22), while the part (19) is pivoted to the bracket (23), at its outer end so that its lowermost point at the eX- treme outer end is on a level with the bottom of the wheel (14:), while its inner end is secured to the outer end of the part (18) with freedom of vertical adjustment as shown at (24), so as to allow the two part-s to be aligned after the part (1S) has been adjusted to a definite depth.

The wheel (14) itself comprises as its principal parts a wide rim (26) preferably made of sheet metal, the hub (27) and the spokes (28) connecting the hub with the rim. As will be seen from Figure 4 the spokes are arranged to occupy only the inner or end portion of the wheel so that a large outer portion of the same remains unoccupied and allows the upper end of a chute (29) to eX- tend thereinto above the hub without in any way interfering with the revolving of the wheel. rlhe chute is supported on a bracket (31) secured on the outer frame member (16) and extends laterally sufliciently far to reach over the header board and to deliver dirt dumped on the same on the outside of the road bed. The rim of the wheel has a plurality of Scoop buckets (32) secured thereon, each scoop bucket comprising a bottom extending from the rim inwardly at an angle to a radial line while the rim itself forms the back of each bucket. One side of each bucket is finished by the flange (34) extending inwardly from the rim on the outer end of the wheel while the other or inner side of each bucket is formed by a plate (36) which runs perpendicularly to the rim in the adjacent portion as shown at (37) and is then deflected outwardly as shown at (38) so that the discharge opening of each bucket is confined to the space within the wheel left unoccupied by the spokes of the same. It will be readily seen that as the wheel, as shown in Figure 3, advances to the right end as the dirt is delivered to the lowermost point of the same by the mold board (17) the dirt will be forced on the rim and while being lifted by the rim will dropinto one of the buckets (32) and remain in said bucket until the latter has been raised to a suflicient height to have its bottom slant downwardly when the dirt will begin to be discharged. At this time the bucket is above the chute (29) so` that the dirt discharged from the bucket is automatically guided by the chute over the header boards to a place outside of the roadbed. It will be noted that the back of each bucket is substantially coextensive with the rim of the wheel so that for the picking up of the dirt the whole width of the wheel is utilized.

The outlet or discharge portion of each bucket is narrowed due to the deflection of the side plate (38) so that when the dirt is dumped no portion thereof will fall on the spokes and all the dirt will be delivered to the chute. To prevent the dirt or tailings placed on the rim by the mold board from falling off the rim before being received in one of the buckets (32) I provide a guard plate (41) to cover the lower rear portion on the wheel which latter guard plate is secured to the mold board as shown at (42). A second plate (43) is provided to cover the lower front portion of the wheel and to prevent dirt from rolling under the wheel instead of on the rim, The latter plate is suspended from one, of the frame members (16). rl`he position of these two plates is indicated in dotted lines on Figure 3.

The operation of the device should be readily understood from the foregoing description. The large wheel (14) trails the sub-grader and the dirt or tailings left by the sub-grader are pushed over to the wheel and on the bottom portion of the rim thereof, the plate (43) preventing the dirt from being pushed over the wheel and the plate (41) preventing the dirt from dropping off the wheel as the latter revolves. During the rotation of the wheel the dirt is collected in the rising buckets and after the latter have reached a position near the top of the wheel the dirt is dumped through the discharge opening (39) into the chute (29) which latter delivers the dirt over the header board on the outside of the roadbed.

I claim:

1. A grade cleaner for a roadbed bounded by header boards comprising a wheel, means for advancing the same alongside of one of the header boards, means for delivering tailings lying on the roadbed to the rim of the wheel, a chute supported in fixed relation to the wheel projecting over the header board and means associated with the wheel for lifting the tailings and for dumping them on the chute.

2. A grade cleaner for aI roadbed bounded by header boards comprising a wheel, means for advancing the same alongsde of one of the header boards, means for delivering tailings lying on the roadbed to the rim of the wheel, a chute supported in fixed rela-tion to the wheel projecting over the header board and means associated with the wheel for lifting the tailings and for dumping them on the chute, said means comprising scoop buckets secured inside of the rim carrying the tailings upwardly and dropping the same when approaching their highest point of travel.

3. A wheel for elevating material and dumping the same on a chute travelling with the wheel comprising a comparatively wide wheel rim, a hub, spokes between the rim and the hub occupying an end portion of the rim only with the chute supported to extend into the portion left .clear of spokes, and scoop buckets moving with the rim formed to receive material, to lift the same as the wheel advances and to dump the same into the chute when approaching their highest point of travel.

4. A Wheel for elevating material and JN Abra n. i mi rn dumping the same on a chute travelling with the wheel comprising a comparatively wide wheel rim, a hub, spokes between the rim and the hub occupying an end portion of the rim only with the chute supported to eX- tend into the portion left clear of spokes, and scoop buckets moving with the rim formed to receive material, to lift the same as the wheel advances and to dump the same into the `chute when approaching their highest point of travel, the discharge opening for the buckets being outside of the spoke controlled area of the rim.

5. Means for feeding material from a roadbed to the rim of an advancing wheel comprising a frame supported on the wheel axle and a scraper blade traveling over the roadbed supported on the frame so as to guide material lying on the roadbed to the road contacting portion of the wheel.

6. In combination, a grader Jfor a roadbed having header boards on the sides therei. il

of, a wheel trailing the grader having a chute associated therewith extending over one of the header boards, a diagonally disposed scraper blade feeding tailings of the grader to the roadbed engaging portion of the wheel and means associated with the wheel for elevating the tailings and for dumping the same on the chute 7 In combination, a grader for a roadbed having header boards on the sides thereof, a wheel trailing the grader having a chute associated therewith extending over one of the header boards, a diagonally disposed scraper blade feeding tailings of the grader to the roadbed engaging portion of the wheel and means associated with the wheel for elevating the tailings and for dumping the same on the chute, protecting plates being provided for confining the tailings to the wheel rim.

ANDREW JAMES CLASEN.

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