US941340A - Drag. - Google Patents

Description

J. & A. BLA'DHOLM.

I DRAG. APPLICATION FILED JAN. 6, 1909.

Patented Nov. 23, 1909.

' BfZxeZZlad/wlm ATTORINE rs WITNESSES f, #TE'M UTTE JOHN BLADHOLM AND AXEL BLADI-IOLM, OF IVIARSHALL, L'IINNESO'IA.

DRAG.

To all whom it may concern:

Be it known that we, JOHN BLADHOLM and AXEL BLADHOLM, citizens of the United States, and residents of Marshall, in the county of Lyon and State of Minnesota, have invented a new and Improved Drag, of which the following is a full, clear, and exact description.

The invention is an improvement in drags for smoothing and shaping roads, etc., and has in view such a device embodying the elements of simplicity, strength and durability, and primarily built of standard crosssectional forms of rolled steel, the drag being capable of being drawn either in alinement with the road or at an angle thereto, and operating to shear the dirt ofl rather than tear it apart. In arriving at a drag fulfilling these conditions we construct the same of channel-iron scrapers and Firm tie-bars, the latter rigidly connecting the scrapers together, and having forwardly converging and connected hitching members, one of which is adjustable in .length to cause the drag to move at an angle to the line of draft if desired. The scrapers are each preferably provided with angle-iron shoes to relieve the channel irons of wear, the shoes being detachable, enabling their renewal when worn, whereby the life of the drag may be prolonged indefinitely.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan of our improved drag, showing the same in full lines, as when drawn in alinement with the line of draft, and in dotted outline at an angle thereto, as when one of the members of the hitching device is shortened; Fig. 2 is a side view of the drag; and Fig. 3 is a perspective View of the same.

The scrapers of the drag are constructed of channel-irons 5, 5, suitably spaced apart with their bases facing toward the front. These channel-iron scrapers are rigidly con nected together by T-iron tie- bars 6, 6, the connection being effected by bending the forward ends of the bars downwardly to lie flat against the front face of the forward' scraper, and similarly bending or shaping the rear ends of the tie-bars to abut against the rear face of the rear scraper, as shown Specification of Letters Patent.

Application filed January 6, 1909.

Patented Nov. 23. 1999.

Serial No. 470,952.

in Fig. 2. This manner of connecting the tie-bars with the rear scraper makes it necessary to give the rear ends of the tie-bars a hook to clear the top flange of the channeliron instead of bendingthe tie-bars directly downwardly, as at their forward ends. The flanges of the T-iron tie-bars at the front are perforated to receive rings or loops 7 with which respectively connect a chain 8 and a rod 9, these members or devices converging forwardly and connected by means of the hooked outer end of the rod engaging in a link or ring 10 at the end of the chain. The chain and rod constitute a hitching device, and when thus engaged they operate to draw the drag in alinement with the line of draft. If, however, the hook of the rod be disengaged from the link or ring 10 and engaged in one of the links of the chain to shorten the latter, as shown in dotted outline in Fig. l, the drag will move at an angle to the line of draft and will throw the dirt to one side, thus enabling the drag to be used in throwing the dirt to the center of the road and accordingly elevating this portion of the road bed. If the surface is to be leveled only, the hitching device will be connected to cause the drag to move in alinement with the line of draft.

In order to relieve the channel iron scrapers of wear, the bottom flanges of the latter are covered with angle-iron shoes 11, the latter being detachably applied, whereby they may be removed and renewed when Worn or otherwise unfit for use. The sharp edges of the shoes afforded by the angle of the angle-irons operate to shear off the soil rather than tear it, and accordingly not only give a smoother finished surface but enable the drag to be operated with reduced power.

Having thus described our invention, we claim as new and desire to secure by Letters Patent:

1. In a drag, the combination of front and rear channel-iron scrapers, and T-iron tiebars rigidly connecting the scrapers together.

2. In a drag, the combination of front and rear channel-iron scrapers, T-iron tie-bars rigidly connecting the scrapers together, and angle-iron shoes detachably connected to the scrapers.

3. In a drag, the combination of front and rear channel-iron scrapers, with the flanges thereof turned rearwardly, and T-iron tiebars having downwardly-turned front and rear ends, respectively attached to the upright portions of the scrapers.

4. In a drag, the combination of scrapers, T-iron tie-bars rigidly connecting the scrapers together, and a hitching device having members respectively connected to the flanges of the tie-bars, With one of said members having means for detachably connecting it at points along the length of the other member.

5. In a drag, the combination of scrapers spaced apart and rigidly connected together, and a draft device having members respectively connected to the scrapers at separate points, with one of the members having means for detachably connecting it at different points along the other member, Whereby the effective length of the said other member is Varied for the purpose described. In testimony whereof We have signed our names to this specification in the presence of two subscribing Witnesses. 7

JOHN BLAD'HOLM. AXEL BLADHOLM.

lVitnesses:

J. A. MGNIVEN, M. E. CLENDENNING.

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