US1428283A - Road raking and sweeping device - Google Patents

Description

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CHARLES A. GUNDERSON AND RICHARD P. IIIASON, OE ESCANABA, MICHIGAN.

ROAD BAKING AND S NEEPIN G DEVICE.

Application filed September To all whom it may concern:

Be it known that we, CHARLES A. German- SON and RICHARD P. MASON, citizens of the United States, residing at Escanaba, in the county of Delta and State of Michigan, have invented certain new and useful Improvements in Road Raking and Sweeping Devices, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a road raking and sweeping device constructed in such manner that when it is drawn along a road the loose stones on the road will be swept laterally from the road and delivered in a row at one side of the line of travel of the apparatus.

Further objects and advantages of the in vention will be set forth in the detailed description which follows.

In the accompanying drawing:

Fig. 1 is a plan view of a road raking device constructed in accordance with the invention;

Fig. 2 is a transverse vertical sectional view upon line 22 of Fig. 1; and

Fig. 3 is a detail view of one of the runners of the machine, hereinafter described.

Like numerals designate corresponding parts throughout the several figures of the drawing.

The frame of the road raking machine comprises a short runner 5, a long runner 6. a transverse connecting bar 7 and oblique braces 8 and 9 by which the bar 7 is held in a position substantially at right anglest-o the runner 6.

By referring to Fig. 2, it will be seen that the lower edge of the transverse bar 7 lies above the ground level or above the lower edges of the runners 5 and '6 so that when the apparatus is drawn along a road inthe direction indicated by the arrow a", in Fig. 1, stones may pass beneath the bar 7 and between the runners 5 and 6. The shanks 10 of hooks 11 extend vertically through the bar 7 and the forward ends of chains 12, 13 and 14 are connected to the hook. The rear ends of these chains are connected to the runner 6 and the respective points of the attachment of the chains is such that each chain lies in a parabolic curve, as the machine is drawn over the road. The chains 12 are somewhat heavier or larger in diameter than the chains 13 and the chains 13 are 6, 1921. Serial No. 498,623.

in turn heavier or somewhat larger in diameter than the chains 14-. The chains at the left of the structure are so much longer than the chains at the right of the structure that they hug the ground throughout a considerably greater distance and this, taken with the difference in diameter and weight of the chains results in the larger stones being swept from the road by the short heavy chains and the smaller stones being caught and worked from the road by the lighter chains. The result is that a highly efficient device is produced. which will sweep a road practically free of stones at a very small cost. It will be noted that the apparatus itself is of very simple and economical construction and that it is of such a nature as to require very little power to draw it along the road.

It is to be understood that the invention is not limited to the precise construction set forth but that it includes within its purview whateverchanges fairly come within either the terms or the spirit of the appended claims.

Having described our invention what we claim is:

1. A. device of the character described comprising a frame having a longitudinally extending member and a transversely extending member the latter being at the front end of the frame, of a plurality of chains having their ends attached to said members at spaced points in the length-thereof and of such length as to describe a curve between said members.

2. A road raking device comprising a pair of runners a transversely extending bar carried by said runners at the front end thereof and having its under edge spaced above the ground. a plurality of chains having their forward ends attached to said= transverse bar at spaced points in its length and their rear ends attached to one of said runners. said chains being of such length as to describe a curve in the travel of the machine.

3. A structure as recited in claim 2 where in said chains are of varying diameters and the shorter chains are those of greatest diameter.

In testimony whereof we hereunto afiix our signatures.

CHARLES A. GUNDERSON. RICHARD P. MASON.

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