US374299A - wool geiswold - Google Patents

Description

J. W. GRISWOLD.

' MANUFACTURE OF FENCE POSTS.

(No Model.)

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UNITED STATES PATENT OFFICE.

J. WOOL GRISWOLD, OF TROY, NEW YORK.

MANUFACTURE OF FENCE-POSTS.

$PECIPICATION forming part of Letters Patent No. 374,299, dated December 6, 1887.

Application filed August 10, 1887. Serial No. 246,570. (No model.)

To aZZ whom it may concern.-

Be it known that I, J. WOO GRIsWoLn, of Troy, Rensselaer county, New York, have invented a new and useful Improvement i n Fence- Posts, of which the following is a specification.

My invention consists in a new method of making metal fence-posts.

In the accompanying drawings, Figurel represents a tube of metal divided longitudinally in a straight line. Fig. 2 shows said tube divided longitudinally and diagonally. Fig. 3 represents a fence-post made in accordance with my new method, as hereinafter described. Fig. 4 is an end view of the tube shown in Fig. 1. Fig. 5 is a transverse section of the same. Fig. 6 is an end view of the fence-post shown in Fig. 3.

Similar letters of reference indicate like parts.

In carrying my new method of making fenceposts into practical effect I first produce, in any way known,atube ofthe metal of which itis desired that the fen ce-post shall be made-that is, preferably, by drawing, welding, or rolling. I have found, however, that,in1ieu of actually making tubes for this purpose, it is very economical to utilize old boiler-tubes, which are sold in the market very cheaply as scrap metal.

If a straight post is desired, I simply cut the tube in twolongitudinally, as shown in Fig. 1, A. being the tube, and B G the longitudinal line; or, if a tapering post is wanted, I divide the tube longitudinally and diagonally, as indicated by the line E F in Fig. 2. In this way from a single tube I produce two posts. It remains simply to flatten and point the end to be inserted in theground, as at G, Fig. 3, when the post is completed.

The shape of the post is such as togive it ample stiffness, and the fact that it can be made in the simple manner above described from old tubing renders it very cheap.

I claim 1. The method of making metal fence-posts, substantially as hereinbefore described, which consists in dividing longitudinally a tube of metal and producing at one end of each division a flattened and pointed extremity.

2. As a new article of manufacture, a tapering semi-tubular metal fence-post having aflattened and pointed extremity, substantially as described.

J. WOOL GRISWOLD. WVitnesses:

GEO. A. STONE, 'I. S. HEIsTER, Jr.

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