US1097748A - Land-roller drum. - Google Patents

Description

W. P. BUDLONG.

LAND ROLLER DRUM.

APPLICATION FILED JAN. 25, 1913.

Patented May 26, 1914.

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\OLUMBIA PLANOGRAPH CONWASHINGTON D. c.

llTltlD STATES PATENT OFFICE.

VVILBUR. F. BUDLGNG, 0F sAN JOSE, CALIFORNIA, ASSIGNOR TO THE DUNHAM COMPANY, OF BEREA, OHIO, A CORPORATION OF OHIO.

LAND-ROLLER DRUM.

Be it known that I, YVILBUR F. BUDLoNe, a citizen of the United States, resident of San Jose, county of Santa Clara, and State of California, have invented a new and useful Improvement in Land-Roller Drums, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to land rollers, its object being to provide a cheaper, stronger and generally more eflicient construction thereof than is now, in so far as I am aware, employed.

A specific object is to provide a cheap and efficient hub and spoke construction.

The said invention consists of means hereinafter fully described and particularly set forth in the claims.

The annexed drawing and the following description set forth in detail certain means embodying my invention, the disclosed means however, constituting but one of various mechanical forms in which the principle of the invention may be employed.

In said annexed drawing :-'Figure 1 is a vertical axial section of a land roller drum embodying my invention. Fig. 2 is a perspective view of one of the spokes. .Fig. 3 is a perspective view on an enlarged scale of one of the hubs of the roller. Fig. 4 is a de tail section, on an enlarged scale taken upon the plane indicated by line IVIV in Fig. 1.

The illustrated embodiment of my invention includes the usual cylindrical shell A provided with the inwardly projecting end flanges a a. Each hub 13 consists of a cast member having a central cylindrical bearing 6 and a circular flange Z). Upon this flange is formed a plurality of radially projecting members 6 b which preferably extend from the bearing portion of the hub to the periphery of the flange as shown in Fig. 8. The opposite sides 6 and 12* of each of these members 6 converge outwardly as shown in Fig. 4:.

Each spoke C is of U-shaped cross-section and is hence provided with a groove 0. These spokes are preferably formed of standard channel-iron of suitable dimensions, and are of a length such that they reach from the bearing portion 6 of the hub to the inner surface of the shell A. as shown in Fig. 1.

Specification of Letters Patent.

Application filed January 25, 1913.

Patented May 26, 1914. Serial No. 744,265;

The opposite sides of the groove of each spoke are made to diverge outwardly, and the inclination of the opposite sides 6 and b of the members 6 with reference to each other, is made the same as the inclination of the opposite sides of said groove with reference to themselves. hen the standard channel-iron is used such inclination of the grooves sides is of course incidental thereto. The cross-sectional area of each groove c is made slightly less than the cross-sectional area of the corresponding member 6 so that the latter may be caused to project only partially within such groove, leaving a slight clearance space between the contiguous outer face of said member and the bottom of said groove, as well as a similar clearance space between the face of the flange and the contiguous parallel surface of the spoke, as shown in Fig. 4. A suitable hole 0 is drilled through the inner end of each spoke and a registering hole 5 through the corresponding members and the adjacent portion of the flange. Similar holes are drilled in the outer ends of the spokes and the contiguous port-ion of the flanges a a of the shell.

In assembling the above described parts the spokes are placed upon the hub so as to cause the members 6 to project, as described, within the groove, whereupon rivets are passed through the registering holes and suitably secured. The outer ends of the spokes are secured by similar rivets to the flanges a. During such assembling the hubs are placed in a position such that the pro jecting members Z2 will be located on the outside face thereof as shown. The assembled hubs, spokes andflanges are then each inserted in the opposite ends of the shell A and secured by suitable rivets a" passing through countersunk holes formed in the shell as shown in Fig. 1.

By means of the above described construction I obtain a simple and efficient means of securing the hubs and spokes to each other, the cast hub being plain and simple in form whereby the pattern for casting such hub is of a form which will insure clean contact surfaces requiring no machining. The memhere 6 being of the tapered form shown per mit such pattern to be readily drawn from the mold, and these members furthermore impart rigidity and strength to the flanges Z). Furthermore, the tapered construction of the members 6 and the grooves of the spokes, permits these parts to be drawn to gether during the riveting operation so as to Wedge, thereby securing a tight secure and permanent joint between the spokes and hub.

Having fully described my invention, what I claim and desire to secure by Letters Patcut is 1. In a land roller, the combination with a hub formed with radially disposed projecting members each having its opposite sides converging in an outward direction; of spokes each formed with a channel having outwardly diverging opposite sides, and secured to said hub; said members being located in said channels respectively.

2. In a land roller, the combination with a hub formed with radially disposed projecting members each having its opposite sides converging in an outward direction; of spokes each formed with a channel having outwardly diverging opposite sides, and secured to said hub; said members being 10- cated in said channels respectively; the cross-sectional area of each such channel being less than the cross-sectional area of the corresponding proj ecting-members.

3. In a land roller, the combination of a hub formed with radially disposed projecting members each having its opposite sides converging in an outward direction; spokes each formed with a channel having outwardly diverging opposite sides; said members being located in said channels respectively; and rivets passing through said channels and projections for securing the said spokes to the hub; the cross-sectional area of each such channel being less than the cross-sectional area of the corresponding projecting-members.

Signed by me this 11th day of January 1913.

WVILBUR F. BUDLONG.

Attested by- M. J. HANNUM, EMMA I. BUDLONG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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