US247539A - Barbed fence - Google Patents

Description

(No Model.)

B- M. URANDAL;

BARBED FENCE.

No. 247,539. Patented Sept. 27,1881.

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UNITED STATES PATENT ()FFIcE.

EDWARD M. CBANDAL, OF CHICAGO, ILLINOIS.

BARBED FENCE.

SPECIFICATION forming part of Letters Patent No. 247,539, dated September 27, 1881. Application filed J une 20, 1881. (No model.)

To all whom it may concern:

Be it known that l, EDWARD M. ORANDAL, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in-Barbed Fences, of which the following is a specification.

In the present invention'a straight narrow strip having-angular projections on one or both of its edges at short intervals to form barbs is intertwisted between two fence-wires. The strips are out from a continuous blank, and the metal forming the projections or barbs is taken from the contiguous strip cut from the blank, so that back of each barb or projection there is a corresponding notch in the opposite edge of the strip, which notch should extend entirelyacross the width of the strip, asit will thereby render more easy the twisting and spooling of the completed cable. In this way it will be observed that the narrow strip lies evenly between the two fence-wires, projecting as much on the one side as the other, whilethe barbs stand out from its edges at intervals, so that that portion of the cable between the barbs is smooth and of a uniform size and appearance. The strip should be in width about equal to the diameter of the wires forming the cable.

In the accompanying drawings, which form a part of this specification, Figure 1 is a view ot'a short portion of my improved barb-fence. Figs. 2 and 3 are views of the strip. In the former the barbs are formed on both edges; in the latter, on only one. Either form may be used, as preferred.

In said drawings, A represents the strip, having angular projections or barbs a. on its edge, and notches a opposite thereto on its other edge; and B B are the two fence-wires, which are twisted together with the strip A between them.

The strips A are in length equal to the width of the sheet-metal blank, from which the same are cut by any suitable die, and are inserted between the wires one after another as the wires are being twisted together. It is obvious that the strip Awill assume a spiral form after being twisted with the wires; but this will not oifer any obstruction to the convenient spooling of the cable, as the notches a extend entirely across the width of the strip, and as by use of my invention the strip A may be made so narrow that its spiral form will not interfere with the operation of spooling the cable.

I am aware that heretofore barb-fences have been made in which a strip has been employed having diagonal slits cut in the body of the strip and such slitted portion bent at right angles to the face of the strip to form barbs, as shown in Patent No. 152,368, granted to Jacob Haish June 23,1874; and also in which a zigzag strip has been employed, as shown in Patent No. 221,158, granted to me November 4, 1879; but my invention differs from both of these in employing a straight narrow strip having projections on one edge and corresponding notches opposite thereto on the other.-

The form of the Haish strip is such that it necessarily must be so wide, in order to have metal to form the barbs, that its spiral form, when twisted with the wires, renders the cable practically incapable of being spooled, while the barbs prevent the strip lying evenly between the wires. In addition to this, it is dif ficult and expensive to make and to twist with the wires.

The practical difficulty with or objection to the fence shown in my Patent No. 221,158, and which it is the object of the present invention to overcome, is that the zigzag strip, when intertwisted between the wires, forms so many projecting points and crevices for the collection of spelter in the subsequent process of galvanizing the cable, that its weight and cost are thereby materially added to without increasing its strength and value in proportion. It is also an advantage not to have the barbs or points too numerous or close together, as thereby their effectiveness is increased.

I claim- The combination of the fence-wires B B with the straight narrow metallic strips A, inter twisted between said wires, andhaving angular projections a at intervals on its edge to form barbs, and corresponding notches a on its other edge opposite thereto, said strip being about equal in width to the diameter of the wires and projecting equally on each side thereof, so as to form a smooth, even-sized cable between the barbs, substantially as specified.

EDWARD M. ORANDAL.

Witnesses:

EDMUND AnoooK, T. EVERETT BROWN.

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