US833202A - Pole-base. - Google Patents

Description

No. 833.202. l PATBNTED 00T. 16, 1906.

H. H. CLQUGH. 4 POLE BASE.

APPLICATION IILEDJUNB, 1905.

rus Nomus Perzns co.. WASHINGTON, n. r.;

UNITED lsTirrEs PATENT OFFICE.

Specification of Letters Patent.

Patented Oct. 16, 1906.

Application led June 5, 1905. Serial No. 263.721.

To all whom it may concern:

Be it known that I, HENRY H. CLOUGH, a citizen of the United States, and a resident of Elyria, in the county of Lorain and State of o, have invented certain new and useful Improvements in Pole-Bases, of which the following is a specification.

This invention relates to an improved and permanent base for telephone and telegraph poles and the like, and position structure made of cement concrete molded about a metallic strengthening-cage having a plurality of circumferential bands or otherwise so constructed as to afford the necessary circumferential strength to the base.

The invention consists in the matters herein set forth, and particularly pointed out in the apipended claims, and will be fully understood om the construction illustrated in the accompanying drawings, in which` igure l is a sectional elevation of a concrete pole-base embodying my improvements in one form. Fig. 2 is a view of the metallic strengthening-cage detached. Fig. 3 is a top plan section taken on the line 8 3 of Fig. l.

In said drawings, 1 designates a composition base adapted to form a receiving-socket for the butt of a telephone, telegraph, or other pole 2. This base, it is contemplated, will be made of cement concrete molded about a metallic strengthening-cage 3. As herein shown, the cage 3 is of coarse-Wire mesh and is provided toward its upper end with heavy strengthening-bands 4, the lowest one of which will desirably be located at a point just above the bottom of the pole when the latter is within the base. Expanded or perforated sheet metal, throu h the perforations of which the concrete w' l extend in the same manner as to form a binder between the layers of the post inside and outside of the cage, may also be used to form the latter.

In practice it is contemplated that thc polease will be molded in its place in the ground by inserting inner and outer cylindric forms concentrlcally within a hole excavated to receive the base and then filling in the concrete between the forms. Ordinary building-paper may be conveniently used in the making of these cylindric forms. A transverse concrete web 5, constituting the contemplates a com-l bottom of the pole-socket, will be moldedl across the interior of the base at the properv point and the interior space below this web may then be left open or lled in with earth, as desired. A convenient practice is to ll in earth to a lpredetermined point after the annular wall of the base has been molded, but before it is dry, and to then form the transverse Wall 5 by dumping a quantity of concrete into the cylinder upon the top of the earth so filled in, tamping this concrete until it becomes homogeneous with the surrounding concrete wall.

The metallic strengtheningcage will be set in the mold formed by the inner and outer cylinders before the concrete is poured into said mold and will thus be incorporated within the body of concrete, the mass of which will extend through the interstices of said cage and be thus practically integral notwithstanding the presence of the cage. The metal of the cage will thus be permanently protected by the concrete, while the strength of the cage will be lent to the latter and, 1f of suitable dimensions, will render the base capable of resisting any strain which can be put upon it through the pole, which will break short off before the limit of the strength of the base is reached. This construction particularly lends itself to telegraph and telephone and overhead-trolley work and may also be found useful in other connections as well. Its particular advantages are that it enables a shorter and cheaper post to be used than where the latter is set directly in the ground and at the same time increases the life of the post by preserving its butt from dampness and decay.

I claim as my inventionh 1. A composition base for poles comprising a concrete cylinder molded about a cylindric open-work metallic cage, and provided about midway between its ends with a concrete cross-wall forming the base of the polesocket, said cylindric cage being provided with annular strengthening-bands heavier than the cage and surrounding the socket portion of the base, substantially as described.

2. A molded base for poles comprising a concrete cylinder, an open-work cylindrical IOC metallic cage embedded in said cylinder, and ence of tWo subscribing Witnesses7 this 15th e continuous annular strengthening band day of' May7 A. D. 1905. embedded in the socket portion of said oyln- HENRY H CLOUGH der and connected to Said metallic Gage, substantially as set forth. Vitnesses:

In testimony that I claim the foregoing as l HENRY W. CARTER, my invention I affix my signature, in pres- K. A. COSTELLO.

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